• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
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  • 优先权
    • 专利摘要:
    The invention describes a variable filtration system by incorporating both mobile filters and gates, so that the passage of the fluid to be filtered is forced through the desired space, either through a filter with the selected efficiency or several filters. simultaneously, depending on the specific needs, or even of any filter, obtaining energy and maintenance savings by deactivating the filters when they are not necessary. The selection or deactivation of a filter is done by mobile filters that can be sliding, rotating or folding, selecting whether or not it interferes with the fluid flow. It can also be selected by incorporating a swing gate located in a baipás parallel to the conduit that incorporates a fixed filter so that, by opening or closing the gate, it is decided whether or not the fluid passes through the filter. (Machine-translation by Google Translate, not legally binding)
    公开号:ES2727002A1
    申请号:ES201830355
    申请日:2018-04-10
    公开日:2019-10-11
    发明作者:Vega Rafael Diez；Gracia Luis Manuel Navas；Herrero Daniel Perez；Martinez Francisco Javier Rey；Capelastegui Borja Roman；Garcia Francisco Jose Valbuena；Antunano Marta Lopez
    申请人:Universidad de Valladolid；Vega Ingenieria SL；
    IPC主号:
    专利说明:

    [0001]
    [0002]
    [0003]
    [0004] OBJECT OF THE INVENTION
    [0005] The present invention, as expressed in the statement of this specification refers to a filtration system capable of activating, deactivating or modifying the filtering effect of one or more filters in the filtration system of a conduit.
    [0006]
    [0007] The object of the invention is to combine the provision of adequate fluid filtration at times of maximum filtering requirement, with the provision of maximum energy savings at times of minimum filtering requirement.
    [0008]
    [0009] This combination of features is very interesting, since the filtering requirements are often variable:
    [0010]
    [0011] - The level of indoor and outdoor air pollution and the type of indoor and outdoor air pollution can vary.
    [0012] - The generation of indoor pollutants can be variable.
    [0013] - The indoor air quality requirements may vary.
    [0014] - The quality of the supply water can be variable.
    [0015] - The quality requirements of drinking water may vary.
    [0016] - In general, the presence of pollutants and particles, both in gases and liquids, prior to their filtering processes can be variable, and
    [0017] - The requirements for purity and absence of contaminants and particles in gases and liquids after their filtering process can also be variable.
    [0018]
    [0019] The invention finds special application in the field of filters industry for the separation of contaminant particles or chemical compounds dispersed in liquids or gases.
    [0020]
    [0021] TECHNICAL PROBLEM TO BE RESOLVED AND BACKGROUND OF THE INVENTION
    [0022] To ensure the health and comfort of people in relation to the air they breathe and to water they drink, as well as for different fluid treatments, it is usual to have fixed filters suitable for the most unfavorable situation planned according to the design criteria, but that do not adapt to the different filtering requirements that occur over time.
    [0023]
    [0024] In addition, the energy consumption due to the passage of fluids through the filters chosen for the most unfavorable situation foreseen in the design, can be much higher than the energy consumption due to the passage of the fluid through the filters that would have been necessary for the situations more favorable, or less demanding, that will also happen.
    [0025]
    [0026] On the other hand, the filtering requirement design situation envisaged as more unfavorable is sometimes overcome by even more unfavorable specific real situations. Therefore, fixed filters are not installed for the actual filtering requirement of those most unfavorable point moments. This may result in inadequate air or water quality for people or, also, that the requirements for purity and absence of contaminants and particles in the fluid are not met, once the fixed filter installed is exceeded.
    [0027]
    [0028] That is, the fixed filters that incorporate the current air conditioning systems, as well as other treatment, transport, supply or discharge of fluid systems, give rise to an energy consumption by filtration of that fluid, which does not decrease when the filtering requirements decrease .
    [0029]
    [0030] Fluid filtration systems have evolved to the present moment in which there are different types of filters for each need and for each type of contaminant or chemical compound or particle to be filtered.
    [0031]
    [0032] On the other hand, in the specific case of air conditioning and ventilation systems, in addition to evolving in terms of the efficiency of compressors and fans, they have evolved, among other aspects, in improving the efficiency of compressors and boilers at partial load and in the reduction of its electricity consumption by means of variable speed fans capable of providing a variable air flow. In addition, current air conditioning systems are capable of regulating the flow of outside ventilation air based on the requirements of air quality and pollution load of the ventilated spaces.
    [0033] That is, the current air conditioning equipment is capable of reducing its consumption when the thermal load is lower than the expected maximum and when the requirement of outside ventilation air is lower than the expected maximum, thanks to the possibility of variable operation of the equipment current air conditioning based on those parameters.
    [0034]
    [0035] However, we do not know in the current state of the art an air conditioning or ventilation equipment, or a fluid filtration system, which has a variable operation depending on the filtration requirements as the present invention has.
    [0036]
    [0037] The current air conditioning and ventilation equipment that have filters, as well as the current filtration systems of other fluids, have fixed operating filters that are not activated at the times when they are really needed or deactivated at the times when they could not be necessary, so that the energy consumption due to the passage of the fluid through the filters does not decrease at those times of lower requirement, contrary to what the present invention proposes, which makes it possible to reduce energy consumption when the requirement of filtration decreases. In addition, with the proposed invention, the maintenance cost by replacement or cleaning of filters decreases markedly, since periods without maintenance increase, since the filters are not used at times when its filtering effect is not necessary .
    [0038]
    [0039] The present invention solves the problems posed by a filtration system that incorporates mobile filters by means of which it is possible to select not only which of the filters to use, if several are incorporated, but also to select if no filter or a mixture of filters In addition, instead of having mobile filters, the system can also incorporate a gate by means of which it is decided whether the fluid to be filtered should pass through the filter or pass through a bumper. All this focused on energy saving and the efficiency of the use of filters only in cases where it is necessary.
    [0040]
    [0041] The variable filtration system proposed by the present invention causes the energy consumption by filtration to decrease when the filtering requirements are lower than the maximum expected in design.
    [0042]
    [0043] In addition, with the variable filtration system, the installation of higher performance filters would be possible, capable of successfully coping with the real extreme situations of maximum filtering requirements, without therefore the consumption of the installation being penalized in excess, since that with the use of variable filters, the activation of these filters, and their associated energy consumption, could occur only in specific situations in which these higher performance filters were required.
    [0044]
    [0045] In this way, it is possible to have an adequate filtration system even at times of extreme filtering requirement, while it is possible to reduce energy consumption at times of lower filtering requirement.
    [0046]
    [0047] In addition, with the proposed invention, the maintenance cost by replacement or cleaning of filters decreases markedly, since periods without maintenance increase, since the filters are not used at times when its filtering effect is not necessary .
    [0048]
    [0049] To achieve this combination of benefits, the variable filtration system, in the case of air conditioning or ventilation, consists of one or more filters capable of being activated to filter particles, nitrogen oxides, sulfur oxides, organic volatiles, others chemical or biological contaminants, odors and / or particles in suspension, for which they are planned, and also with the ability to deactivate to reduce energy consumption when its activation is not necessary, being able to be this filter or set of filters combined with a fan that overcomes the loss of load produced by the filters.
    [0050]
    [0051] In the general case of other fluids, other than air and water, the variable filtration system consists of one or more filters capable of being activated to filter particles or other physical, chemical or biological contaminants, for which they are intended , and also with the ability to deactivate to reduce energy consumption when its activation is not necessary, being able to be this filter or set of filters, combined with an impeller that overcomes the loss of load produced by the filters. It should be noted that impeller refers to a fan in the case of dealing with gases or a pump in the case of dealing with liquids.
    [0052] DESCRIPTION OF THE INVENTION
    [0053] In order to achieve the objectives and avoid the aforementioned drawbacks, the present invention describes a variable filtration system for the improvement of the quality of air and other gases and liquids and of the energy efficiency intended to be located in a main section of a conduit through which a fluid intended to be filtered circulates.
    [0054]
    [0055] The system can select the fluid flow through a filter housed in a support frame by the movement of the filter.
    [0056]
    [0057] The system can also select the fluid flow through the filter of the support frame by opening a gate located in a bumper parallel to the filter, in a widening of the duct.
    [0058]
    [0059] In either of the two ways, both the quality and the energy efficiency in the filtration of the fluid that passes through the duct are selected according to the needs required at all times.
    [0060]
    [0061] The conduit can incorporate an adjacent housing transverse to the conduit for the location of the support frame. This adjacent housing has a section of similar dimensions or even slightly greater than the main section of the duct and the support frame can slide by sliding between them without protruding when it is located in the adjacent housing, so as not to interfere with the flow of fluid. In this way, the fluid stream can circulate freely through the conduit or be forced through the support frame, either partially, if the support frame is not completely located in the conduit, but still occupying part of the adjacent housing, or by completely, being completely outside the adjacent housing.
    [0062]
    [0063] The conduit can also incorporate two adjacent housings aligned for the alternative housing of a support frame with a multiple filter that can be formed by two filters such as, for example, a very efficient filter, and an inefficient filter, that is, a focused filter to retain particles of a size smaller than one determined in advance and another focused on retaining particles of a size larger than one determined, respectively. Thus, depending on the support frame sliding towards a housing or towards the other, the adjacent filter that is interfering in the conduit will be the opposite. In this way, it is possible to select in the system that the fluid passes through the very efficient filter or the inefficient filter of the support frame depending on the adjacent housing in which it is housed.
    [0064]
    [0065] The multiple filter may additionally comprise a third filter, such as an intermediate efficiency filter located between the very efficient filter and the inefficient filter. In this way, the fluid can be selected to pass through the intermediate efficiency filter completely or only partially, by passing the other part through one of the other two filters, depending on whether it is of interest that the filtrate be more or less intense.
    [0066]
    [0067] The support frame can be circular with a plurality of circular sectors for housing a multiple filter formed by filters of different efficiency located in the respective sectors, where there can be very efficient, inefficient, intermediate efficiency filters and even an empty space, Unfiltered. In this case, the support frame can rotate so that a circular sector with a certain level of filtering is housed in the conduit. The adjacent housing will have the proper shape for the circular support frame housing.
    [0068]
    [0069] A particular form of this case is that the circular sectors are semicircular, with the support frame housing two filters, which can be a very efficient filter and an inefficient filter. One of the two spaces can also be without a filter, the other being one of the two mentioned above, the most efficient or least efficient filter.
    [0070]
    [0071] The variable filtration system of the invention, in addition to being able to have adjacent housings aligned for the location of a sliding support frame, can also incorporate two parallel adjacent housings, each for the accommodation of a support frame with an efficiency filter determined. In this case, at least a third adjacent housing which incorporates an intermediate efficiency filter or simply at least one fixed filter of continuous interference with the current of the fluid to be filtered can also be available upstream.
    [0072]
    [0073] The system can also incorporate a folding filter formed by a support frame and an axis with rotation capacity, so that the folding filter is allowed to position itself aligned, inclined or perpendicular to the direction of the fluid, depending on the way in which the filter interferes with the fluid flow.
    [0074]
    [0075] In this case, the axis can be found centered on the support frame or on an edge, so that the collapsible filter, when folded down so as not to interfere with the fluid flow, is centered in the duct and aligned with it or next to a duct wall. In the latter case, the conduit can incorporate an adjacent housing for the support frame housing when collapsing, so as not to interfere with the fluid flow.
    [0076]
    [0077] The variable filtration system of the invention, in addition to incorporating mobile filters, can also incorporate fixed filters located in an area of the duct in which there is a widening, for the fluid bumper, in which a valve or flip gate is located with ability to clog or release the baipás. In this way, with the gate open the fluid tends to go through the baipás instead of crossing the filter and with the gate closed the fluid can only go through the fixed filter.
    [0078]
    [0079] The fixed filter and the gate can be in contact, obstructing the entire duct in the area of the widening or being separated by a physical separation in which both contact.
    [0080]
    [0081] The system can also incorporate an impeller in the conduit that can be of fixed or variable speed. This impeller can be a fan, if the fluid is gaseous, or a pump, if the fluid is liquid. It can be located anywhere in the duct, although, preferably, it is upstream of any of the filters. The objective of the impeller is to save the pressure drop caused in the conduit by the interference created by the different interposed filters.
    [0082]
    [0083] BRIEF DESCRIPTION OF THE FIGURES
    [0084] To complete the description of the invention and in order to help a better understanding of its characteristics, in accordance with a preferred example of its realization, a set of drawings is attached where, for illustrative and non-limiting purposes, represented the figures described below.
    [0085] Figure 1.- Represents a movable filter of variable drive located in a support frame that has the ability to interpose in the fluid stream, thereby exerting the effect of filtering or not interposing in the fluid stream, being located in a housing. adjacent, thus not exerting the filtering effect, but may result in energy savings and maintenance.
    [0086]
    [0087] Figure 2.- Represents a variable filtration equipment formed by several movable filters located in the respective support frames that have the ability to interpose independently or in a coordinated manner in the fluid stream, thereby exerting the effect of filtering or not interpose in the fluid stream, being located in respective adjacent housings, thus not exerting the filtering effect, but may result in energy saving and maintenance.
    [0088]
    [0089] Figure 3.- Represents a variable filtration equipment formed by several movable filters located in the respective support frames and an impeller that drives the fluid in order to overcome the loss of load exerted by the movable filters of variable drive when they are actuated and interposed in the fluid stream.
    [0090]
    [0091] Figure 4.- Represents a basic air conditioning equipment consisting of a mixture of outside air and return air which, inside the equipment, is a flow of air that passes through a cold or heat battery or hygrothermal treatment process of the air, being an impeller (6) that has the function of driving the supply air that arrives, for example, inside a building, overcoming the loss of load generated by the fixed filter.
    [0092]
    [0093] Figure 5.- Represents an air conditioning or ventilation equipment with a variable filtration system that basically consists of a mixture of outside air and return air which, inside the equipment, is an air flow that passes through cold batteries or heat or hygrothermal air treatment process, finding a variable speed fan that has the function of driving the supply air that reaches the interior of a building overcoming the loss of load generated by the variable drive filter when activated.
    [0094]
    [0095] Figure 6.- Represents a variable filtration system composed of a fixed or variable speed fan, a fixed filter and a movable variable-drive filters that interact with the fluid flow flowing through the variable filtration system.
    [0096] Figure 7.- Represents the scrollable filter of figure 1 in the activated position.
    [0097]
    [0098] Figure 8.- Represents the movable filter of figure 1 in the deactivated position, located in an adjacent housing, without interfering with the flow of the fluid or giving rise to the filtering effect, but may result in energy and maintenance savings.
    [0099]
    [0100] Figure 9.- Represents a variable filtration equipment formed by two movable filters that have the capacity to interpose in an independent or coordinated way in the fluid stream in a situation of high fluid flow filtration requirement. The most efficient filter or associated with a smaller particle size is activated, interfering with the fluid flow, while the less efficient filter or associated with a larger particle size is deactivated, without interfering with the fluid flow.
    [0101]
    [0102] Figure 10.- Represents the variable filtration equipment of figure 9 in a situation of low fluid flow requirement. The most efficient filter or associated with a smaller particle size is deactivated, without interfering with the fluid flow, while the less efficient filter or associated with a larger particle size is activated, interfering with the fluid flow.
    [0103]
    [0104] Figure 11.- Represents a variable acting filter that is composed of a filter that is in a support frame with the capacity to rotate with respect to an axis of rotation located centered on an edge of the support frame.
    [0105]
    [0106] Figure 12.- Represents the filter of figure 11 in a position perpendicular to the direction of the fluid flow, interfering with the fluid and exerting the filtering action.
    [0107]
    [0108] Figure 13.- Represents the filter of Figure 11 in a position parallel to the direction of the fluid flow, without interfering with the fluid and without exerting the filtering action.
    [0109]
    [0110] Figure 14.- Represents a variable acting filter that is composed of a filter that is located in a support frame with the capacity to rotate with respect to an axis of rotation located laterally along an edge of the support frame.
    [0111]
    [0112]
    [0113] Figure 15.- Represents the filter of figure 14 in a position parallel to the direction of the fluid flow, without interfering with the fluid and without exerting the filtering action.
    [0114]
    [0115] Figure 16.- Represents the filter of figure 14 in a position perpendicular to the direction of the fluid flow, interfering with the fluid and exerting the filtering action.
    [0116]
    [0117] Figure 17.- Represents the filter of Figure 14 in an oblique position, forming an angle with the direction of the fluid flow, interfering with the fluid and exerting the filtering action.
    [0118]
    [0119] Figure 18.- Represents the filter of figure 14 in a position parallel to the direction of the fluid flow, embedded in an adjacent housing arranged for this purpose, without interfering with the fluid and without exerting the filtering action.
    [0120]
    [0121] Figure 19.- Represents a circular and rotating support frame that contains two different filters, each of them occupying a semicircular circular sector, one of them less efficient or associated with a larger particle size and another more efficient or associated with a smaller size. of particles.
    [0122]
    [0123] Figure 20.- Represents a variable drive filter with rotating circular support frame and with a filter incorporated in one of the two semicircular sectors of the support frame, the other sector being unfiltered. At a given angle of rotation, the filter coincides geometrically with the conduit, interfering with the fluid flow and giving rise to the filtering effect.
    [0124]
    [0125] Figure 21.- Represents the variable drive filter of Figure 20 when the angle of rotation is such that the filter does not interfere with the fluid flow, interfering with the sector that does not incorporate any filter, without giving rise to the filtering effect.
    [0126]
    [0127] Figure 22.- Represents the filter of figure 19 positioned at an angle such that part of the less efficient filter and part of the more efficient filter interfere with the fluid flow giving rise to a mixed or intermediate filtering effect corresponding to the two filters .
    [0128] Figure 23.- Represents the filter of Figure 19 although with four circular sectors, each one for the accommodation of a filter, one of minimum filtration efficiency, another end of maximum filtration efficiency and two intermediate zones with intermediate efficiencies of filtered out.
    [0129]
    [0130] Figure 24.- Represents a variable filtration system in a widening that presents the resolved duct by means of a fixed filter and a valve or gate located in a baipa space in the widening with the valve or gate open, bringing the fluid flow For the most part, it runs through the baipás instead of passing through the filter, thus not giving rise to the filtering effect.
    [0131]
    [0132] Figure 25.- Represents the filtration system of Figure 24 where the valve or gate is closed, with the fluid flow forced through the filter, thus giving rise to the filtering effect.
    [0133]
    [0134] Figure 26.- Represents the filtration system of Figure 24 with a fixed filter and a valve or gate located in a path of baipás that incorporates a physical separation of the filter so that, with the valve or gate open, the fluid flow For the most part, it runs along the baipás path instead of passing through the filter, thus not giving rise to the filtering effect.
    [0135]
    [0136] Figure 27.- Represents a double support frame that contains two different filters, one of them less efficient or associated with a larger particle size and another more efficient or associated with a smaller particle size.
    [0137]
    [0138] Figure 28.- Represents the double support frame of Figure 27 in a conduit comprising two adjacent aligned lugs, so that the two filters can be alternated showing a more efficient use situation in which the less efficient filter is found in the fluid stream and the most efficient filter is in the adjacent housing, resulting in less efficient filtering, but greater energy and maintenance savings.
    [0139] Figure 29.- Represents the double support frame of Figure 27 in the conduit of Figure 28, the most efficient filter being in the fluid stream and the least efficient filter in the adjacent housing.
    [0140]
    [0141] Figure 30.- Represents the double support frame of Figure 27, the support frame being in an intermediate position between the adjacent housings, so that the fluid flow passes partly through each of the filters, giving rise to an effect of mixed filtering
    [0142]
    [0143] Figure 31.- Represents a support frame containing a progressive filter with one end of minimum filtration efficiency, another end of maximum filtration efficiency and an intermediate zone with intermediate filtration efficiency.
    [0144]
    [0145] Figure 32.- Represents the support frame of Figure 31 in a conduit like the one shown in Figure 28 where, depending on the position of the filter and the concealment of its ends in the adjacent housings, the fluid flow will pass through of the filter in a different filtering zone that will correspond to a different filtering efficiency.
    [0146]
    [0147] The following is a list of the references used in the figures:
    [0148]
    [0149] 1. Fluid.
    [0150] 2. Very efficient filter.
    [0151] 3. Low efficiency filter.
    [0152] 4. Intermediate efficiency filter.
    [0153] 5. Adjacent accommodation.
    [0154] 6. Impeller.
    [0155] 7. Cold or heat air conditioning batteries.
    [0156] 8. Variable speed fan.
    [0157] 9. Fixed filter.
    [0158] 10. Duct.
    [0159] 11. Support frame.
    [0160] 12. Axis
    [0161] 13. Widening.
    [0162] 14. Baipás.
    [0163]
    [0164]
    [0165] 15. Gate.
    [0166] 16. Multiple filter.
    [0167] 17. Folding filter.
    [0168]
    [0169] DESCRIPTION OF A PREFERRED EMBODIMENT OF THE INVENTION
    [0170]
    [0171] Considering the numbering adopted in the figures, the applications of the variable filtration system of the present invention are described below.
    [0172]
    [0173] The variable filtration system of the invention is usable in all types of facilities, processes, transport systems, equipment and feeding points, inlet, discharge or emission, in which some fluid is the treated, supplied, transported, discharged or issued, and that for different reasons, technical or economic, a variable filtration system can contribute to lower energy consumption, reduce the cost or complexity of maintenance and / or can contribute to improving purity, quality, and / or absence of particles, contaminants and unwanted elements in the treated, supplied, transported, discharged or emitted fluid.
    [0174]
    [0175] As systems, facilities and elements in which this innovation can be implemented are all those that already use one or more filters, as well as all those in which the incorporation of filters can lead to an improvement in quality, purity or the lack of pollutants from air, water or any other fluid, or that may lead to an environmental improvement. Some examples are listed below:
    [0176]
    [0177] 1. Air conditioning and ventilation installations and equipment, in which one or more variable acting filters could be put into operation, in order to achieve the desired air quality, and cease to operate when they were not necessary in order to achieve energy savings and savings in maintenance (cleaning, replacement or entertainment filters).
    [0178]
    [0179] 2. Installations, equipment or industrial processes in which the air is used as a heat transfer fluid, as a sweeping fluid, as a contaminant eliminating fluid, as compressed air, or as another element in the production process. In these cases, the variable filtration system will be able to provide adequate air filtration in the required points, and to provide energy and maintenance savings when the filtration requirements decrease.
    [0180]
    [0181] 3. Installations and equipment for the production, transport, use, feeding and discharge of gases other than air, such as medicinal gases, welding gases, refrigerant gases, combustible gases and other gases. In these cases, the variable filtration system will be able to provide adequate gas filtration at the required points, and provide energy and maintenance savings when the filtration requirements decrease.
    [0182]
    [0183] 4. Facilities and equipment for treatment, distribution, supply, feeding and use of drinking water, within which are the plumbing facilities. In these cases, the variable filtration system will be able to provide adequate water filtration at the required points, capable of achieving the desired water quality and provide energy and maintenance savings when the filtration requirements decrease without penalizing water quality at parameters below those desired.
    [0184]
    [0185] 5. Facilities and equipment for treatment, distribution, supply, food, discharge and use of non-potable water, as well as other liquids other than water, including fuels, and including industrial processes that use water or other liquid as a heat transfer fluid, as a sweeping fluid and / or a pollutant eliminator, as an evaporating fluid, as a vapor, as a fuel or as another element in the production process. In these cases the variable filtration system will be able to provide adequate filtration of the liquid at the required points, capable of achieving the desired liquid quality and provide energy savings when the filtration requirements decrease without thereby penalizing the quality of the liquid at parameters below those desired.
    [0186]
    [0187] 6. Chimneys and smoke outlets of boilers in buildings and homes, especially those whose fuel is diesel, coal, pellet or wood, and the outlets of fumes and polluting gases from industries, which may have a variable filtration system that is activated at times when a lower emission of fumes into the atmosphere is required (for example due to periods or times of high pollution in
    [0188]
    [0189]
    [0190] cities or because the wind direction would move the smoke to sensitive areas, to areas with high levels of pollution or to areas that you want to protect as schools or hospitals and others) and to be deactivated when a lower emission of fumes, saving on energy and maintenance at those times.
    [0191]
    [0192] 7. Smoke outlets of the exhaust pipes of motor vehicles, including private vehicles and vehicles intended for public transport, which may have a variable filtration system that is activated at times when a lower emission of fumes into the atmosphere is required (for example due to periods or moments of high pollution in cities, due to the entry of the vehicle into cities where you want to protect air quality, or due to the proximity or passing through areas of high sensitivity or areas that you want to protect as schools, hospitals and others, and that is deactivated when a lower emission of smoke is not required, saving on fuel and maintenance in those moments of deactivation.
    [0193]
    [0194] In a usual embodiment, the variable filtration system of the invention, composed of the filters (2, 3, 4, 16, 17) and the adjacent housings (5) that house them, is incorporated in a passageway of so that, when installing the filtration system in an existing duct (10), not only the variable filter is installed, but also this entire passageway incorporating the adjacent housings (5) and the filters (2, 3, 4 , 16, 17) as a single piece that is installed in the duct (10). This situation is especially applicable to the case where the installation is carried out on ducts (10) of existing installations. In the case of new installations, the variable filtration system, consisting of filters (2, 3, 4, 16, 17) and adjacent housings (5), can be incorporated in the passageway that, as a single piece, is installed in the duct (10) or it may be incorporated in an air conditioning or ventilation equipment.
    [0195]
    [0196] In new air conditioning and ventilation installations, the variable ventilation system could also be incorporated as an independent variable filtration equipment, which could contain in its most basic configuration a variable acting filter (2, 3, 4, 16, 17), as required. represented in figure 1, or could contain several filters (2, 3, 4, 16, 17) of variable action, as shown in figure 2 and, optionally, a variable speed fan, as shown in figure 3 .
    [0197]
    [0198]
    [0199] In the case of air conditioning and / or ventilation installations, as shown in Figure 4, the variable filtration system could be used in new installations, either within the air conditioning or ventilation equipment itself, which could incorporate one at the factory. or several filters (2, 3, 4, 16, 17) of variable performance, being able to be called by air conditioning equipment with variable filtration system or ventilation equipment with variable filtration system.
    [0200]
    [0201] The variable filtration system could also be used in existing air conditioning or ventilation installations, either by modifying the air conditioning or ventilation equipment itself, which would originally contain one or more fixed filters (9), as shown in Figure 4, so that It may contain one or several filters (2, 3, 4, 16, 17) of variable performance, as shown in Figure 5, or incorporating new independent equipment of variable filtration that, in addition to some fixed filter (9), will have one or more filters (2, 3, 4, 16, 17) of variable actuation and optionally an impeller (6), such as a fan, of variable speed that overcomes the loss of load of the filters (2, 3, 4 , 9, 16, 17), as depicted in Figure 6.
    [0202]
    [0203] In air conditioning and ventilation, the activation of one or more filters (2, 3, 4, 16, 17) of the filtering system will be aimed at providing adequate air quality to the air-conditioned or ventilated spaces, through the obligation of air to pass by one or more filters (2, 3, 4, 9, 16, 17), so that the air is cleaned of particles, nitrogen oxides, sulfur oxides, organic volatiles, other chemical or biological contaminants, odors and / or suspended particles.
    [0204]
    [0205] In air conditioning and ventilation, the deactivation of one or more filters (2, 3, 4, 16, 17) of the filtering system will aim to reduce the energy consumption of ventilation and / or air conditioning, by preventing air from passing through one or more filters (2, 3, 4, 16, 17), thus saving the energy necessary for the air to pass through said or said filters (2, 3, 4, 16, 17), due to the loss of load that the filters (2, 3, 4, 9, 16, 17) generate when a stream of air passes through them to be filtered.
    [0206]
    [0207] In air conditioning and ventilation, to determine whether a filter (2, 3, 4, 16, 17) must be activated or not, criteria based on indoor air quality, outdoor air quality or air quality can be used downstream of the filter (2, 3, 4, 16, 17), although discretionary criteria, time criteria and / or criteria for the use of
    [0208]
    [0209]
    [0210] spaces to activate or deactivate the filters (2, 3, 4, 16, 17). The activation and deactivation criteria based on outdoor air quality can be based on air quality probes located outside the building, data coming from remote probes that different buildings can receive, high level pollution alerts or high level alerts. Airborne allergen levels emitted by municipal, regional or national governments.
    [0211]
    [0212] The configuration and operation of the system is indicated below.
    [0213]
    [0214] The variable filtration system incorporates at least one filter (2, 3, 4, 9, 16, 17) that will be exerting its filtering work by passing through them the fluid (1) object of filtration.
    [0215]
    [0216] The variable filtration system will be able to modify the filtering action, regulating it by means of the obligation, as shown in figure 7, or not obligation, as represented in figure 8, of the fluid (1) to pass through the filters (2 , 3, 4, 16, 17).
    [0217]
    [0218] The variable filtration system may have different filters (2, 3, 4, 9, 16, 17) intended for the same type of contaminant or particle, but with different filtration efficiencies of the contaminant or suitable for different particle sizes. In these cases, when the filtration requirements increase, the activation of the highly efficient filters (2), associated with a smaller particle size, may be associated with the deactivation of poorly efficient filters (3), associated with a larger size of particles, as shown in Figure 9. On the contrary, when the filtration requirements decrease, the deactivation of the most efficient filters (2), associated with a smaller particle size, may be associated with the activation of the filters less Efficient (3), associated with a larger particle size, as shown in Figure 10. The classification of filters as very efficient and not very efficient is relative and based on a particle size predetermined by the user. On the other hand, instead of classifying filters according to their efficiency, they can also be classified according to the type of elements to be filtered.
    [0219]
    [0220] The mode of activation and deactivation of the filters (2, 3, 4, 16, 17) can be diverse, but the objective is the same: to provide the fluid (1) downstream of the filtration system or in an enclosure, chamber, deposit or stay downstream of the filtration system, of a suitable
    [0221]
    [0222]
    [0223] quality and purity in relation to the absence of particles, chemical compounds and other contaminants that you wish to avoid, even when the quality or purity of the fluid (1) upstream of the filtration system were not adequate, and allow maximum energy savings in ventilation or pumping when you can deactivate one, several or all filters (2, 3, 4, 16, 17) at the time when one or more of the filters (2, 3, 4, 16, 17) are not necessary to provide the conduit (10) downstream of the filtration system or the enclosure, chamber, reservoir or room downstream of the filtration system of adequate quality and purity in relation to the absence of particles, chemical compounds and other contaminants that are desired avoid.
    [0224]
    [0225] The intended mode of operation for the variable filtration system is an automatic operation so that, in an automatic way, the filters (2, 3, 4, 16, 17) necessary to provide the pipe (10) downstream can be activated exclusively from the filtration system or to the enclosure, chamber, reservoir or room downstream of the filtration system, of a quality and purity of the fluid within the desired parameters, and the filters are not activated (2, 3, 4, 16, 17) that are not necessary to achieve the quality and purity of the desired fluid (1).
    [0226]
    [0227] It is contemplated that the system can be used manually as an alternative or complement to the automatic mode.
    [0228]
    [0229] To determine whether a filter (2, 3, 4, 16, 17) must be activated or not, criteria based on the quality and purity of the fluid (1) in the conduit (10) can be used upstream of the filtration system, or outside and / or criteria based on the quality of the fluid (1) in the duct (10) downstream of the filtration system or in the enclosure, chamber, reservoir or room downstream of the filtration system, although discretionary criteria may also be used , time criteria and / or use criteria to activate or deactivate the filters (2, 3, 4, 16, 17).
    [0230]
    [0231] The variable activation filter is the basic element of the invention and allows multiple configurations. Here are some of these settings:
    [0232]
    [0233] 1. Incorporation of a collapsible filter (17) by means of a rotating support frame (11), as shown in Figure 11 which, if rotated so as to force the flow of
    [0234]
    [0235]
    [0236] fluid (1) to pass through the folding filter (17), would be activated, as shown in Figure 12 and, if rotated so as to allow the passage of fluid (1) without crossing the folding filter (17), it would be deactivated , as depicted in Figure 13.
    [0237]
    [0238] In one embodiment, the axis (12) of the rotating support frame (11) can be located in one of the edges, as shown in Figure 14, in which case the collapsible filter (17) would be deactivated if it is collapsed next to one of the inner sides of the duct (10) or equipment that delimits the passage of the fluid (1), as shown in Figure 15. Otherwise, to be activated, the flip-up filter (17) would only have to rotate on its axis (12), as shown in Figure 16 to be located perpendicular to the direction of the fluid flow (1).
    [0239]
    [0240] In another embodiment, the axis (12) of the rotating support frame (11) can be located in the center of the support frame (11) or in any position that does not correspond to one of the edges of the rotating support frame (11) , in which case the folding filter (17) would be deactivated if it is in a position parallel to the direction of the fluid (1), with the fluid (1) running on both sides of the folding filter (17), as shown in the figure 13.
    [0241]
    [0242] In either of the two embodiments, the collapsible filter (17) in the activated position can be perpendicular to the direction of the fluid flow (1), as shown in Figures 12 and 16, or it may be at another angle, as shown in figure 17, so that the fluid flow (1) is forced to pass through the flip-up filter (17). In addition, the deactivated folding filter (17) can be found in the middle of the fluid stream (1), as shown in Figure 13, next to one of the sides of the duct (10) that delimits the passage of the fluid (1) , as shown in Figure 15, or embedded in an adjacent housing (5) disposed for this purpose on one side of the conduit (10), so that its influence on the passage of the fluid (1), when the flip-up filter (17 ) is deactivated be minimal, as shown in figure 18.
    [0243]
    [0244] 2. Incorporation of filters (2, 3) in movable support frames (11) so that, with the support frame (11) of the filter (2, 3) coinciding or exceeding the perimeter of the passage passage section outside (10) the fluid stream (1) will be forced to pass through the filter (2, 3) and would be activated, as shown in Figure 7, while with the support frame (11) of the filter (2, 3) located in an adjacent accommodation (5), it
    [0245]
    [0246]
    [0247] It will allow the passage of fluid (1) through the conduit (10) without passing through the filter (2, 3), as shown in Figure 8.
    [0248]
    [0249] 3. Incorporation of multiple filters (16) in circular and rotating support frames (11), each of the filters (2, 3) occupying a semicircular sector of the support frame (11) and may even be one of the two semicircular sectors It will be found without a filter (2, 3), as shown in Figures 20 and 21, allowing fluid free passage (1). Thus, with the support frame (11) positioned at an angle in which the filter (2, 3) interferes with the fluid flow (1), the filter (2, 3) would be activated, as shown in the Figure 20, while with the support frame (11) at the angle at which the filter (2, 3) does not interfere with the fluid flow (1), the filter (2, 3) would be deactivated, as shown in Figure 21
    [0250]
    [0251] In a different situation where the support frame (11) incorporates a more efficient filter (2) and a less efficient filter (3), each of the filters (2, 3) occupying a semicircular sector of the support frame (11), being positioned at an angle where the fluid flow (1) interferes with part of each of the filters (2, 3), resulting in a mixed or intermediate filtering effect, as shown in Figure 22.
    [0252]
    [0253] Another situation corresponds to a support frame (11) that incorporates a multiple filter (16) with four circular sectors, one in which a more efficient filter (2) is located, another in which a less efficient filter is located (3) and two sectors where intermediate efficiency filters (4) of filtering are located, in any position with respect to the other filters (2, 3), as shown in Figure 23.
    [0254]
    [0255] 4. Incorporation of one or more dampers (15) of baipás (14) in a widening (13) produced in the duct (10) that allows the flow of the fluid (1) to run through the baipás (14) generated by the opening of the gate (15) instead of passing through a fixed filter (9), as shown in figure 24, or the fluid (1) is forced to pass through the filter (9) when the gate (15) is closed, as shown in figure 25, this gate (15) being able to be located next to the filter (9), as shown in figures 24 and 25, or in a section of baipás (14) physically separated from the filter (9), as shown in figure 26. The widening (13) shown in figures 24 and 25 can be carried out directly on the duct (10) in the area containing the fixed filter (9) or either, as shown in Figure 26, by placing an additional channel, either a conduit or a pipe, parallel to the conduit (10) in the area containing the fixed filter (9) connecting it hydraulically by means of two holes for the exit of the fluid towards the widening (13) and the inlet back to the duct (10) downstream of the fixed filter (9).
    [0256]
    [0257] 5. Any other configuration that allows the fluid (1) to pass 100% or at least a large percentage through the assigned filter (2, 3, 9, 16, 17), when it is desired that said filter (2, 3 , 9, 16, 17) is in operation, and that allows the fluid flow (1) to go to 0% or at most in a small percentage through the filter (2, 3, 9, 16, 17), when the filtering demands of that filter (2, 3, 9, 16, 17) decrease.
    [0258]
    [0259] 6. In all cases the possibility of operation in two extreme positions is contemplated depending on whether the filter (2, 3, 16, 17) is activated or deactivated, and the possibility of partial operation, where only a part of the fluid (1) It passes through the filter (2, 3, 16, 17), leaving another part of the fluid (1) without passing through the filter (2, 3, 16, 17), as shown in Figure 1.
    [0260]
    [0261] 7. Incorporation of multiple filters (16) in movable support frames (11), capable of containing two or more different filters (2, 3, 4), next to each other, as shown in Figure 27. In these cases, the conduit (10) incorporates two adjacent housings (5) aligned, so that the multiple filter (16) can move from an adjacent housing (5) to another through the conduit (10).
    [0262]
    [0263] In these cases, filters (2, 3, 4) of different filtering efficiency of one or more contaminants or filters suitable for different size of filtering particles are preferably used, such that, with the support frame (11) positioned at so that the less effective filter (3) interferes with the fluid flow (1), this less effective filter (3) would be activated and the energy consumption would be lower, while with the support frame (11) positioned so that the filter more effective (2) interferes with the fluid flow (1), this more effective filter (2) would be activated and the energy consumption would be higher. These two configurations are represented, respectively, in Figures 28 and 29. This configuration allows the selection of an intermediate position between the two filters (2, 3), as shown in Figure 30, as well as the use of a multiple filter (16) progressive in which one end incorporates a filter of maximum efficiency (2) of filtering, the another end incorporates a filter of minimum efficiency (3) and, among them, are filters of intermediate efficiency (4) of filtering, as shown in Figure 31, so that the displacement thereof along its different positions lead to different filtering efficiencies, as depicted in figure 32.
    [0264]
    [0265] 8. Incorporation of multiple filters (16) in double or multiple rotating support frames (11), capable of containing two or more different filters (2, 3, 4), each located in a circular sector of the appropriate size, as represented in figures 19 and 23.
    [0266]
    [0267] Preferably these are multiple filters (16) of different filtration efficiency of one or more pollutants or filters (2, 3, 4) suitable for different size of filtrate particles, such that with the support frame (11) of the filter (2, 3) positioned so that the inefficient filter (3) interferes with the fluid flow (1), this less effective filter (3) would be activated, as shown in Figure 20, and the energy consumption would be lower that if a very efficient filter (2) were activated, while with the support frame (11) positioned so that the very efficient filter (2) interferes with the fluid flow (1), this more effective filter (2) would be activated and energy consumption would be higher. This situation has not been reflected in the figures, but is easily deductible in view of figures 19, 20 and 21. This configuration allows the selection of an intermediate position between two filters (2, 3), as represented in the Figure 22, as well as the use of a progressive multiple filter (16) in which a circular sector incorporates an inefficient filter (3), another circular sector incorporates a very efficient filter (2) and the rest of sectors incorporates efficiency filters intermediate (4), as shown in figure 23.
    [0268]
    [0269] 9. Incorporation of multiple filters (16) in movable and rotating support frames (11) that perform more complex movements than simple rotation or simple displacement of the filter support frame. As in the previous two cases, each filter will be activated when the flow of the fluid is forced to pass through it.
    [0270]
    [0271] 10. The invention, in its most basic mode, can be composed of a single variable activation filter (2, 3) in a support frame (11), as shown in Figure 1, which can be found as an independent element within an air conditioning, ventilation, air treatment or other fluid installation (1), or it can be found within a variable filtration system together with other fixed filters (9), together
    [0272]
    [0273]
    [0274] with other filters (2, 3) of variable activation and / or in conjunction with one or more impellers (6) of fixed or variable speed, as shown in Figure 6.
    [0275]
    [0276] This variable activation filter (2, 3) can be found within an air conditioning or ventilation or air or other fluid treatment device (1). It consists of a filter (2, 3) that can be activated by forcing the passage of the fluid (11) to pass through the filter (2, 3) and can be deactivated, allowing the passage of the fluid (1) without crossing the filter (2, 3) . The activation of the filter (2, 3) may be manual or motorized activation and the order of activation may be by external, internal, upstream or downstream concentration of the contaminant that filters the filter (2, 3), by time, by use or voluntary based on pre-established criteria.
    [0277]
    [0278] The operation of the filter (2, 3) may be all or nothing or it may be gradual, so that part of the fluid (1) passes through the filter (2, 3) and part of the fluid (1) does not pass through the filter (2, 3). The variable activation filter (2, 3) may be accompanied by a variable speed impeller (6) that compensates for the loss of filter load (2, 3) and may be accompanied by one or more fixed filters (9) that protect to the impeller (6), to protect the variable acting filter (2, 3) or to filter other contaminants.
    [0279]
    [0280] eleven.
    [0281]
    [0282] Below are some examples of compositions.
    [0283]
    [0284] Two variable activation filters (2, 3), as shown in Figures 9 and 10. This configuration is suitable for both filters (2, 3) of the same type of contaminant, where one of them has more efficiency than the other, and depending on the concentration of the contaminant, one or the other filter (2, 3) can be activated as for filters of different pollutants or particles, which may have independent activation from one another depending on the concentrations and objectives of the contaminant corresponding to each filter. This composition may be preceded by a fixed filter (9) or a variable activation filter (2, 3) to protect and extend the life of the variable activation filters (2, 3), as shown in Figure 2. .
    [0285] One or more variable activation filters (2, 3) and a variable speed impeller (6), as shown in Figure 3. This configuration is suitable for use independently and compatible with other new or existing systems, since the variable speed impeller (6) can be adjusted to overcome the pressure loss generated by the filters (2, 3) which, due to its condition of variable speed impeller (6), can adjust its speed depending on the or the filters (2, 3) are activated or deactivated or are in intermediate positions, so that the loss of load of the filters (2, 3) is canceled, without thereby altering the general operation of an existing or new installation , and therefore not requiring the alteration of elements or operating parameters of existing or new equipment.
    [0286]
    [0287] This composition can also be used in new or existing equipment that had fixed filters (9) and fixed speed impellers (6), so that these previously fixed filters (2, 3) (9) can have variable operation, and these impellers (6) before fixed speed, can have a variable speed, with the consequent energy savings, in addition to the maintenance savings due to the lower use of filters (2, 3) at times when they are not necessary.
    [0288]
    [0289] Finally, comment that the present invention should not be limited to the embodiment described herein. Other configurations can be made by those skilled in the art in view of the present description. Accordingly, the scope of the invention is defined by the following claims.
    [0290]
    [0291]
    2
    权利要求:
    Claims (20)
    [1]
    1. - Variable filtration system for the improvement of the quality of air and other gases and liquids and of the energy efficiency destined to be located in a main section of a conduit (10) through which a fluid (1) circulates destined to be filtered, the system being characterized in that it comprises a filter (2, 3, 4, 9, 16, 17) housed in a support frame (11) so that the system is able to select the fluid flow rate (1) that it crosses the support frame (11) by a method to be selected between moving the support frame (11) and opening a gate (15) located in a baipás (14) parallel to the filter (2, 3, 4, 9, 16, 17) , so that both quality and energy efficiency are selected in the filtrate of the fluid (1) that passes through the conduit (10) based on the needs required at all times.
    [2]
    2. - Variable filtration system for the improvement of the quality of air and other gases and liquids and of energy efficiency, according to claim 1, characterized in that the duct (10) comprises an adjacent housing (5) to the duct (10 ) for the location of a support frame (11) that incorporates a filter (2, 3, 4).
    [3]
    3. - Variable filtration system for the improvement of the quality of air and other gases and liquids and energy efficiency, according to claim 2, characterized in that the adjacent housing (5) has a section of dimensions similar to the main section of the conduit (10) and the support frame (11) has the capacity to move between them without protruding when it is located in the adjacent housing (5), so that the fluid flow (1) can circulate freely through the conduit (10) or be forced through the support frame (11).
    [4]
    4. - Variable filtration system for the improvement of the quality of air and other gases and liquids and energy efficiency, according to claim 2, characterized in that the duct (10) comprises two adjacent housings (5) and aligned for the alternative housing of the support frame (11) of a multiple filter (16) comprising a very efficient filter (2) and an inefficient filter (3), so that the fluid (1) can be selected to pass through the very efficient filter (2) or the inefficient filter (3) of the support frame (11) depending on the adjacent housing (5) occupied.
    2
    [5]
    5. - Variable filtration system for improving the quality of air and other gases and liquids and energy efficiency, according to claim 4, characterized in that the multiple filter (16) additionally comprises an intermediate efficiency filter (4) located between the very efficient filter (2) and the inefficient filter (3), so that the fluid (1) can be selected to pass through the intermediate efficiency filter (4) and part of one of the other two filters (2 , 3).
    [6]
    6. - Variable filtration system for improving the quality of air and other gases and liquids and energy efficiency, according to claim 2, characterized in that the support frame (11) is circular and comprises a multiple filter (16) with a plurality of circular sectors for housing filters (2, 3, 4) of different efficiency, including an empty space, without a filter.
    [7]
    7. - Variable filtration system for improving the quality of air and other gases and liquids and energy efficiency, according to claim 6, characterized in that the sectors of the multiple filter (16) are semicircular and the two filters housed are to be selected, in a unique way, between a very efficient filter (2), an inefficient filter (3) and an empty space, without filter, so that the support frame (11) can be located so that the fluid crosses a selection between one of the two filters (2, 3), part of each of the filters (2, 3) and no filters (2, 3).
    [8]
    8. - Variable filtration system for improving the quality of air and other gases and liquids and energy efficiency, according to claim 6, characterized in that the support frame (11) comprises a multiple filter (16) comprising a Very efficient filter (2), an inefficient filter (3) and at least one intermediate efficiency filter (4).
    [9]
    9. - Variable filtration system for the improvement of the quality of air and other gases and liquids and of energy efficiency, according to any of claims 1, 4 and 6, characterized in that it comprises two parallel adjacent housings (5) for location of two support frames (11), one with a very efficient filter (2) and another with an inefficient filter (3).
    [10]
    10. - Variable filtration system for improving the quality of air and other gases and liquids and energy efficiency, according to claim 9, characterized in that the conduit (11), upstream of the other two adjacent housings (5), additionally comprises a third adjacent housing (5) incorporating an intermediate efficiency filter (4).
    [11]
    11. - Variable filtration system for improving the quality of air and other gases and liquids and energy efficiency, according to claim 9, characterized in that the duct (11), upstream of the other two adjacent housings (5 ), additionally comprises a fixed filter (9).
    [12]
    12. - Variable filtration system for the improvement of the quality of air and other gases and liquids and energy efficiency, according to claim 1, characterized in that it comprises a collapsible filter (17) comprising a support frame (11) and a shaft (12) capable of rotation so that it is possible for the folding filter (17) to be positioned in a location to be selected between aligned, inclined and perpendicular to the direction of the fluid (1).
    [13]
    13. - Variable filtration system for improving the quality of air and other gases and liquids and energy efficiency, according to claim 12, characterized in that the shaft (12) is centered on the support frame (11), so that the folding filter (17) is centered in the duct (10) and aligned with the fluid flow (1) when it is folded so as not to interfere with it.
    [14]
    14. - Variable filtration system for improving the quality of air and other gases and liquids and energy efficiency, according to claim 12, characterized in that the shaft (12) is in an edge of the support frame (11) , so that the collapsible filter (17) is folded next to a wall of the duct (10) when collapsed so as not to interfere with the fluid flow (1).
    [15]
    15. - Variable filtration system for the improvement of the quality of air and other gases and liquids and energy efficiency, according to claim 14, characterized in that the shaft (12) is located in an adjacent housing (5) for the location of the support frame (11) when collapsing so as not to interfere with the fluid flow (1).
    [16]
    16. - Variable filtration system for improving the quality of air and other gases and liquids and energy efficiency, according to claim 1, characterized in that
    2
    it comprises a fixed filter (9) and transverse to the duct (10) in an area where there is a widening (13) that forms a baipás (14) for the passage of the fluid, where the widening (13) comprises a folding gate (15) capable of obstructing or releasing the baipás (14), so that with the gate open the fluid (1) tends to go through the baipás (14) and with the gate (15) closed the fluid (1) tends to pass through the fixed filter (9).
    [17]
    17. - Variable filtration system for the improvement of the quality of air and other gases and liquids and of energy efficiency, according to claim 16, characterized in that between the gate (15) and the fixed filter (9) is a physical separation, so that the baipás (14) is constituted by a channel that connects with the conduit (10) upstream and downstream of the fixed filter (9).
    [18]
    18. - Variable filtration system for improving the quality of air and other gases and liquids and energy efficiency, according to any of the preceding claims, characterized in that the duct (11) houses a speed impeller (6) at select between fixed and variable, which is preferably located upstream of any of the filters (2, 3, 4, 9), to save the pressure drop caused in the duct (10) by the interference created by the different filters (2 , 3, 4, 9) filed.
    [19]
    19. - Variable filtration system for improving the quality of air and other gases and liquids and energy efficiency, according to claim 18, characterized in that the impeller (6) is to be selected between a fan and a pump.
    [20]
    20. - Variable filtration system for improving the quality of air and other gases and liquids and energy efficiency, according to any of the preceding claims, characterized in that the efficiency of the filters (2, 3, 4) is in function of a selection between the size of the particles to be filtered and the type of particles to be filtered.
    2
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    同族专利:
    公开号 | 公开日
    WO2019197693A1|2019-10-17|
    ES2727002B2|2020-12-10|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US20120152819A1|2009-08-27|2012-06-21|Hyun Cheul Cho|Variable fitration device|
    RU2414949C1|2009-09-25|2011-03-27|Андрей Викторович Носонов|Valve filter with controlled filtration capacity|
    KR20110056634A|2009-11-23|2011-05-31|주식회사 조은환경|Adjustable filtration controlable position of filter thickness|
    WO2017034813A1|2015-08-21|2017-03-02|Cummins Filtration Ip, Inc.|Variable efficiency filtration media|
    法律状态:
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    ES201830355A|ES2727002B2|2018-04-10|2018-04-10|VARIABLE FILTRATION SYSTEM FOR IMPROVING THE QUALITY OF AIR AND OTHER GASES AND LIQUIDS AND ENERGY EFFICIENCY|ES201830355A| ES2727002B2|2018-04-10|2018-04-10|VARIABLE FILTRATION SYSTEM FOR IMPROVING THE QUALITY OF AIR AND OTHER GASES AND LIQUIDS AND ENERGY EFFICIENCY|
    PCT/ES2019/070221| WO2019197693A1|2018-04-10|2019-04-03|Variable filtration system for improving the quality of air and other gases and liquids and for improving energy efficiency|
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