• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Gravity ring filtering system that is based on the use of a plurality of ring filter elements located in a rotating mechanical element where raw or dirty liquid is introduced without pressure, the whole being filtered by gravity, and obtaining clean liquid in the external zone of said rotating element, where the system also comprises a cleaning equipment for said filters, where the liquid resulting from said cleaning is also collected and channeled so that it does not mix with the clean liquid obtained; With this configuration, an efficient equipment is obtained both from the energy point of view and in the cost of water for cleaning the equipment. (Machine-translation by Google Translate, not legally binding)
    公开号:ES2720675A1
    申请号:ES201800024
    申请日:2018-01-23
    公开日:2019-07-23
    发明作者:Roca Salvador Ros
    申请人:Roca Salvador Ros；
    IPC主号:
    专利说明:

    [0001]
    [0002] Gravity ring filtering system.
    [0003]
    [0004] Object of the invention
    [0005]
    [0006] The present invention consists in the use of a plurality of ring filter elements located in a rotating mechanical system where a crude or dirty liquid is introduced, the filtration being gravity. This configuration allows to obtain a more efficient equipment both from the energy point of view and in the cost of water for cleaning the equipment, while achieving a final volume of properly filtered liquid.
    [0007]
    [0008] Field of application of the invention
    [0009]
    [0010] The present invention has its field of application mainly within the industry of manufacturing filter elements or filtering equipment for filtration installations of all types of fluids, especially for water, being useful mainly for installations where high energy efficiency is sought at low micrajes.
    [0011]
    [0012] Background of the invention
    [0013]
    [0014] Within this industrial sector, many types of fluid conduction facilities are known in which particle filtration is necessary, with a remarkable development and increasing use in areas such as agriculture, industrial, marine water desalination and other treatments of fluids
    [0015]
    [0016] Given this need, several technologies focused on particle filtration have been developed, including deep bed filters made from sand, active carbons, or similar elements; the filter-sieves, consisting of a mesh-like filter, which acts as a simple filter in a water tank, and can be rotatable; or gravity filters that act by the weight of the liquid that passes through a filter disc.
    [0017]
    [0018] On the other hand, other types of filtration systems are known, such as bag filters, such as that defined in document ES2288366, where filtration requires additional elements, in this case decanters.
    [0019]
    [0020] Mesh filters are also known, such as that disclosed in ES2385084, where filtration consists of locating a mesh, preferably cylindrical, in the filter such that the liquid to be purified passes through said mesh where the elements are retained. unwanted, and filtered water coming out of another end of the filter.
    [0021]
    [0022] Another type of filtering systems are those commonly referred to as ring filters, such as the one disclosed in EP1844833, where in a filter there is a plurality of rings inside so that as the water passes, the assembly is pressed and regulates the flow and passage of water, thereby filtering said fluid.
    [0023]
    [0024] Finally, the so-called cartridge filters stand out, such as the one disclosed in EP2266679, where a plurality of cartridges are located in a filter, which can be removable, having specific housings for said cartridges, and where the water being filtered passes by said cartridges that internally can have multiple configurations or structures, more or less complex, of filtering.
    [0025]
    [0026] All these systems have their peculiarities that make them technologies for use in very specific facilities, ranging from wastewater to irrigation water.
    [0027] In order to achieve a better use of hydraulic resources, especially for regions that have a natural water shortage, a significant improvement has been achieved in this field of application. Through all these modern techniques they have achieved a high degree of water use, but this invention wants to go a step further, given that for sieves of low micronage, there are obvious problems in self-cleaning, which generates problems in the final yields of liquid filtered out. In some cases, as in the case of cartridge filters, there is no choice but to directly replace the cartridge; or in the filters of rings or discs, maintenance or internal cleaning requires expensive processes as it is not easy to reach the filter meshes located inside the filter.
    [0028]
    [0029] Focusing on the specific case of biological treatment plants, they need to have sieves of the order of 10 jum in tertiary treatment, and are facilities where ring filters and disk technologies have been incorporated in recent years. Although the result is better than applying any of the existing technologies individually, there are obvious problems regarding the use of energy and hydraulic resources. Specifically, the technology of ring filters, after certain improvements in this field that improve the cleaning of the filter and rings, such as defined in documents ES1059225U for filters and document ES1062189U for rings, makes them suitable for use in tertiary treatments. In contrast, although these filters have an acceptable performance in terms of using the fluid to perform the cleaning, it is the internal mechanism itself that does not make them suitable for use in gravity filters, and due to their nature it forces the pressurization of the fluid before Going through these filters being a bad competitor as far as energy use is concerned and produces problems when performing maintenance. On the other hand, filters that work by gravity, due to the absence of mechanisms that are included in the same water flow, and the fact that they use a secondary pump to clean their textile mesh, have the disadvantage compared to Ring filters require a greater flow of water for cleaning with respect to the filter surface, and be less reliable, since it is usual to change these filter meshes for damage.
    [0030]
    [0031] In view of these existing technical problems for this type of filtering equipment, and taking into account the existing background in the state of the art that are not capable of solving said problem, the present invention proposes a filtering system configuration from a rotating mechanism that allows the entry of raw or dirty liquid, takes advantage of the reliability and high surface area of the ring filters by adapting said type of filters to the new rotary configuration with which to optimize the hydraulic and energy resources, obtaining a clean final liquid, and which in turn employs a novel cleaning system that makes its gravity filtration possible since it does not need to pressurize the system in the state of filtration, and allows the extraction of the liquid obtained after said cleaning without mixing with the final clean water obtained.
    [0032]
    [0033] Description of the invention
    [0034]
    [0035] The present invention consists of a plurality of ring filter elements located in a rotary mechanical system where crude or dirty liquid is introduced, the assembly being filtered by gravity, having a cleaning system of said filter elements by gravity, and where it is obtained a final clean water obtained from the initial crude liquid.
    [0036] For this, this filtering system is placed in civil construction facilities where the raw or dirty liquid inlet channels and the clean water collection channels are made of reinforced concrete or other conventional materials. In turn, the liquid resulting from the cleaning of the filter, which as will be seen below, is carried out at the top of the system, is collected in a channel, located within the central axis, and conducts it to an external collection channel , independent of the channel of filtered and clean liquid obtained.
    [0037] The system has a fixed structure where there is a structural chassis, which holds the whole; a pump and a pressure assembly, which is used for cleaning, and which comprises, among others, a conduit located in the upper part of the assembly; and a rotary mobile element or rotor where the filter elements are located radially with which the filtering of the crude or dirty liquid is carried out and finally the clean liquid is obtained.
    [0038] The raw water enters through a central axis, which is a feed pipe preferably of DN1000 without pressurizing, unlike conventional filtering systems, and where the water only occupies the lower half of the pipe. The rotor, which has a hollow cylindrical configuration that allows collecting water from the feed pipe, rotates on its axis constantly, causing all filters to be submerged when they are at the bottom, and cleaned when they are in the upper part. Therefore, the filtrate of the liquid is such that. the raw water that is collected in the rotor passes through gravity through the submerged filter elements, and a filtered liquid is obtained through the lower and outer area of the equipment that is collected and extracted outside without mixing with any other type of dirty liquid.
    [0039]
    [0040] The filters are located radially inside metal tubes. In order to filter by gravity, and not under pressure, such as the way in which it filters with existing technologies and systems, a new configuration is developed replacing the parts of the conventional selector bases, which perform the function of a non-return valve, by a new support in the same base of the ring. This means that there is no loss of charge in the filtration stage, the gravity being filtered, that is to say without having a previously determined pressure in the system of said filter.
    [0041]
    [0042] Thus, in front of all the filtering equipment by rings or discs, accessory elements are not necessary, which, resisting the hydraulic pressure of the system, release the rings or discs during the cleaning process; but in the present invention a mechanical element outside of any hydraulic pressure is designed that makes gravity filtration of this type of filters possible.
    [0043]
    [0044] In addition, also against the filtering equipment existing in the state of the art, while the filter is submerged and thanks to the removal of the accessory cleaning parts mentioned above, the crude liquid can pass from the center of the rotor to the outside of the ring filter located in each of the tubes, from here it passes to the internal part of the filter producing the filtering effect, and from here to the external part of the rotor of the machine, where the filtered water is stored. It must be taken into account that the mechanical element existing in the present invention and that allows the filter to be cleaned, is an element outside the filter itself, therefore it does not interfere with the filtering process and precisely allows gravity filtration.
    [0045]
    [0046] To carry out the cleaning process, when it comes into operation, a pipe is pressurized which is located at the top of the rotor with filtered water. As the rotor is constantly rotating thanks to a motor with a gearbox that is placed in the chassis, each filter is placed individually in the vertical, which is the washing area of the filter. This is because each disk is out of phase with respect to the previous one to produce this effect, in this way the cleaning flow is constant, and the correct cleaning of each filter is allowed individually, as well as the correct collection of the liquid obtained from Cleaning the filter without contacting the clean liquid obtained after the filtering phase.
    [0047] For the cleaning process there is a rotating part that performs three functions: it adjusts to the top of the filter, squeezes while accompanying the filter to release the rings and facilitate cleaning of the cartridge, and acts as a valve to open and close the flow of pressurized fluid as necessary. This type of filter only needs two things to clean, release the rings that are usually tightened inside the filter by the spring and the liquid inlet through the cleaning tubes of the scanner, which lead the clean fluid to injectors that drive this water under pressure on the inner part of the filter rings that are they are separated from each other, and subsequently this liquid is conducted towards the collection channels located in the central part of the rotor, without coming into contact with the rest of the hydraulic system of the present invention. This also provides the technical advantage of ensuring that the cleaning of the filters does not interfere with the filtering process of dirty water, and that everything can be done in a constant manner without interruptions of the entire system due to the need for cleaning a single filter, as with any of the existing systems or filters in the state of the art.
    [0048] Taking into account all these aspects, the present invention allows, from a differentiated configuration of the types of known filters, to have a series of solutions to technical problems not solved by the known systems, and allows filtering a contribution of dirty liquid without need to pressurize the whole; it can filter continuously, constantly and without stopping said dirty liquid by gravity, without interruptions in case of a problem in an individual filter; and it has an independent cleaning system to the one of the filtrate, that allows the individual cleaning of each filter also by gravity, being able to collect and extract the dirty liquid coming from the cleaning of each filter without contaminating the final clean liquid obtained after the filtering , and therefore allows the system as a whole not to be stopped if you have to replace a given filter.
    [0049] In order to complete the description and to help a better understanding of the features of the invention, a set of figures and drawings is presented, where the following is illustrated and not limited to:
    [0050] Fig. 1.- A perspective view of the whole gravity ring filtration system of the present invention is shown.
    [0051] Fig. 2.- An external side view of the system of the previous figure is shown.
    [0052] Fig. 3.- An aerial view of the system of the previous figures is represented.
    [0053] Fig. 4.- A front view of the system of the previous figures is represented.
    [0054] Fig. 5.- Any cross section of the rotor is shown where the radial filters are observed.
    [0055] Fig. 6.- Any cross section of the rotor is shown where the radial filters are observed with their internal composition.
    [0056] Fig. 7.- An enlarged detail of the previous figure is shown where the filter cleaning equipment is observed.
    [0057] Fig. 8.- A detail of the filter cleaning process is represented according to the previous figure.
    [0058] Fig. 9.- A view of a type of equipment with several systems such as those described in the present invention interconnected is shown.
    [0059] Fig. 10.- A cross section of the previous figure is represented.
    [0060] Description of the preferred embodiment
    [0061]
    [0062] As can be seen in Figures 1 to 7, a preferred embodiment of the invention consists of a fixed structure comprising a structural chassis (1), a pump (11) with a pressure assembly and a conduit (12 ) of pressure that is used to clean the filters, and a rotary moving element or rotor (2) consisting of a plurality of discs where the plurality of filters (3) located radially.
    [0063]
    [0064] First of all, it must be taken into account that the raw water (A1) enters through a central pipe (13) of dimension DN1000 without pressurizing, where the raw water (A1) only occupies the lower half of the pipe. This raw water (Al) is introduced into the rotor (2), so that this rotor (2) rotates on its axis constantly, causing all filters (3) to be submerged in dirty water when they are in the submerged bottom (Z1), and cleaned when they are at the top, area that is not submerged (Z2). This dirty water (A1) passes through the filters (3) that are submerged in the lower zone (Z1) to the filtered water zone (A2) which is the entire lower outer zone (Z3) of the equipment.
    [0065]
    [0066] As can be seen in Figures 9 and 10, these equipments are placed in facilities built by civil works where the entrance and collection channels are made of reinforced concrete, and where a plurality of interconnected equipment and systems can be located.
    [0067]
    [0068] Going into more detail, it can be observed, mainly in the first figure, that the water resulting from the cleaning of each filter (3), which is carried out at the top, is collected in a collection channel (4) located inside the central axis of the rotor (2). and this dirty water resulting from cleaning the filters is driven to the outside of the system by a discharge channel (5) or final cleaning extraction.
    [0069]
    [0070] As can be seen in all the figures, the filters (3) are located radially inside metal tubes (30) or can also be called cartridges, each of them having a support (6) with a spring in its base , so that there is no loss of load in the filtration stage. For opening or releasing the filter so that it can be cleaned, an external mechanical element (7) is available that makes filtration and gravity cleaning of this type of filters possible.
    [0071]
    [0072] In the filtration stage, while the filter (3) is submerged in the lower submerged zone (Z1), the previously mentioned support (6) allows the raw water (Al) to pass from the center of the rotor (2) towards the inner part (31) of the filter producing the filtering effect, and from here to the external part (Z3) of the machine rotor, where the filtered and clean water (A2) is stored. It should be noted that the support springs (6) are pressing the filter rings (3) to achieve 10 pm micrometer and the correct filtering of the raw water (A1).
    [0073]
    [0074] In the same way, to carry out the cleaning process, when it comes into operation, the conduit (12) which is located in the upper part of the rotor (2) is pressurized with filtered or clean water. As the rotor (2) is constantly rotating thanks to a motor with a gearbox that is placed in the chassis (1), each filter (3) is placed individually in the vertical, which is the washing area of the filter. This fact is very important, and as can be seen in Figure 3, this is because each disk is out of phase with respect to the previous one to produce this effect, in this way the cleaning flow is constant and allows both cleaning and cleaning. collection and extraction of dirty water, through the collection channel (4) located within the central axis of the rotor (2).
    [0075]
    [0076] In figures 6 to 8 it can be seen that in the cleaning process there is a mechanical element (7) consisting of a rotating part that incorporates an adjustment valve and that performs the three functions necessary for the correct cleaning of each filter (3 ), that is, the rotating part fits the upper part of the support (6) of the filter (3) to be cleaned, squeezes it while accompanying the filter to release the rings and facilitate cleaning of the filter, and acts as a valve to open and close the flow of pressurized fluid from the conduit (12) with clean water as necessary, this mechanical element being able to provide this clean water under pressure on the internal part of the filter (31); finally, the dirty water produced by this cleaning effect is collected by the collection channel (4) without returning to the filtered water (A2) obtained by the system. Specifically, as seen in Figure 8, this cleaning process is characterized, or has the particularity compared to other known systems, because it does not use pressurized housing to perform the cleaning, and does not have mechanical parts that increase the loss of loading in the filtration process because they are necessary for the cleaning process.
    权利要求:
    Claims (6)
    [1]
    1. Gravity ring filtration system, usable for the filtration of all types of fluids and in which the filters are ring, in which the raw water (Al) enters through a central pipe (13) in the system, and where the clean filtered water (A2) obtained after filtering is not in contact with the dirty water: a system that also has a self-cleaning equipment that reuses part of the clean filtered water (A2); and in which the system is characterized by comprising:
    - an unpressurized central feed pipe (13), where the raw water (Al) occupies the lower half of the pipe;
    - a structural chassis (1) that supports a rotating mobile element or rotor (2) where a plurality of filters (3) located radially on different discs are located; where the rotor (2) receives in its central part the raw water (Al) of the central pipe (13), so that part of the filters (3) are submerged in raw water (Al) when they are at the bottom submerged (Z1), and the rest are in the area that is not submerged superior (Z2); where each filter (3) has a support (6) with spring in its base; and where clean filtered water (A2) obtained by gravity is stored in the outer part (Z3) of the rotor (2); Y
    - a cleaning equipment comprising
    or a pump (11) with a pressure assembly that takes filtered water (A2);
    or a pressure line (12) that is used to clean the filters (3) not submerged in the upper area of the system and which is located in the upper part of the system and transports filtered water (A2) under pressure;
    - an external mechanical element (7) that pushes the support (6) of the filters (3) allowing the introduction of filtered water (A2) under pressure into the internal part (31) of each filter, and having a gravity cleaning of said filter.
    - a collection channel (4) located within the central axis of the rotor (2) that receives dirty water from cleaning the internal part (31) of each filter, said dirty water being conducted outside the system by a channel discharge (5) of cleaning.
    [2]
    2. Gravity ring filtering system, according to the features of claim 1, characterized in that the filters (3) are located radially within metal tubes (30).
    [3]
    3. Gravity ring filtering system, according to the features of claim 1, characterized in that the rotor (2) is constantly rotating by means of a motor with a gearbox that is placed in the chassis (1).
    [4]
    4. Gravity ring filtering system, according to the characteristics of claim 1, characterized in that each of the rotor discs (2) where the filters (3) are located radially are offset from the previous ones.
    [5]
    5. Gravity ring filtering system, according to the characteristics of claim 1, characterized in that the mechanical element (7) that pushes the support (6) of the filters (3) consisting of a rotating part incorporating a valve adjustment.
    [6]
    6. Gravity ring filtering system, according to the characteristics of claims 1 to 5, characterized in that the mechanical element (7) has injectors that drive the filtered filtered water (A2) under pressure on the inner part (31). ) of the filter.
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    同族专利:
    公开号 | 公开日
    ES2720675B2|2020-06-22|
    WO2019145583A1|2019-08-01|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US20050199551A1|2004-03-10|2005-09-15|Gordon Robert R.|Method and system for filtering sediment-bearing fluids|
    ES1059225U|2005-01-04|2005-03-16|Salvador Ros Roca|Self-cleaning filter for agricultural irrigation water|
    CN201823375U|2010-09-11|2011-05-11|福建新大陆环保科技有限公司|Unpowered self-cleaning lamination type filter|
    KR20160027619A|2014-09-01|2016-03-10|주식회사 파나시아|A candle type apparatus for filtering ballast water having a top plate alleviating water impact|
    法律状态:
    2019-07-23| BA2A| Patent application published|Ref document number: 2720675 Country of ref document: ES Kind code of ref document: A1 Effective date: 20190723 |
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    优先权:
    申请号 | 申请日 | 专利标题
    ES201800024A|ES2720675B2|2018-01-23|2018-01-23|Filtration system for gravity rings|ES201800024A| ES2720675B2|2018-01-23|2018-01-23|Filtration system for gravity rings|
    PCT/ES2019/000007| WO2019145583A1|2018-01-23|2019-01-22|Gravity-based disc filtration system|
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