• 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:
    Heat recovery system and method between a lower pressure fluid source and a higher pressure fluid source, comprising a first cylinder (1) with connection ports to the higher pressure source and to the heat exchanger (11); a second cylinder (2) with connection ports to the lower pressure source and to the heat exchanger (11), and with a rod (3) common to the first cylinder (1); a first volumetric displacement member (4) fixed to the rod (3), which generates in the first cylinder (1) two first chambers (6, 6') that are alternately connected to the higher pressure source or to the heat exchanger (eleven); and a second volumetric displacement member (5) fixed to the rod (3), which generates two second chambers (7, 7') in the second cylinder (2). (Machine-translation by Google Translate, not legally binding)
    公开号:ES2784463A1
    申请号:ES202030359
    申请日:2020-04-28
    公开日:2020-09-25
    发明作者:Gutierrez Santiago Lago
    申请人:Gutierrez Santiago Lago；
    IPC主号:
    专利说明:

    [0001] description
    [0003] Heat recovery system and procedure
    [0005] technical sector
    [0007] The present invention refers to a heat recovery system and procedure, with minimal energy consumption, in liquid storage that needs continuous renewal, such as swimming pools.
    [0009] state of the art
    [0011] Currently, in certain processes it is necessary to renew fluids to maintain
    [0012] its quality. In the case of heated swimming pools, the water that must be recycled daily is replaced by cold water from the network. This amount varies between 4% and 5% of the total volume of the pool, depending on the applicable regulations and the type of disinfection treatment applied to it.
    [0014] The cold water that is introduced needs to be heated to the temperature of use (26 to 27.50C) from the starting temperature (between 4 and 160C depending on the area and time of year). Depending on the pool, between 20 and 60 m3 have to be heated per day with an easily calculable high energy cost. If approximately 28 m3 of water are renewed in a semi-Olympic pool (25 x 12.5 x 2 m), with an inlet temperature of 9 o C:
    [0015] Q = m • c • (t2-t1) = 28,000 Kg x 0.0011619 (KWh / (0CKg)) x (27-9) oc = 585.6 KWh This, without taking into account the heating performance, which it can be 0.8.
    [0017] The installation of a heat exchanger would considerably reduce the energy expenditure of this daily renewal operation, since by circulating the water that leaves with which it enters a heat exchanger, the temperature of the incoming water could easily be raised to 23 ° C. This strongly reduces energy consumption since the thermal jump is considerably lower.
    [0019] This simple and profitable operation is currently not carried out for several reasons: The renewal of the water is an operation that is usually carried out manually. This means that an operator opens the pool drain valve and, in approximately 10 minutes, the amount described is emptied. It is then filled with water from the mains until the desired level is reached in the pool. To obtain a heat recovery in that time, an exchanger capable of handling flows of 126 m3 / h would be needed, with an exchange power of approx.
    [0020] 2,050 KW.
    [0022] A type exchanger of this size is especially expensive and remains unused for most of the day. Therefore, this investment is not attractive.
    [0024] The size of the exchanger can be easily reduced by simply increasing the exchange time, that is, reducing the filling and emptying speed.
    [0026] Carrying out a continuous renewal, that is, throughout 24 hours a day, the incoming and outgoing water flow is reduced to 1.16 m3 / h, and the exchanger power to 24.4 kW. This exchanger would have an approximate cost of € 800. This solution is more efficient and profitable. No. But for this exchange is successful, it is necessary that the flow of incoming and outgoing water are substantially equal, or otherwise overflows will occur or unwanted emptied the pool.
    [0028] At this point, it should be noted that the filling is done under network pressure and the emptying by gravity. A s t, the output rate of the water is completely different to the filling as the pressures and pipe diameters are different. E s necessary to balance both regimes.
    [0030] L os systems currently available for this balance are:
    [0032] - Manual adjustment of the emptying and filling valves. E s a very inaccurate method and very exposed to bugs, pressure changes in the supply network and other instabilities caused by fouling of filters. E s the most economical method, but it is not at all recommended as it can lead to excessive emptied or overflowing.
    [0033] - Installation of control systems that can consist of variable flow pumps and / or motorized valves at the inlet and outlet operating in combination with pulse counters and a control in charge of balancing the flows. It is a very accurate system, but its cost makes it unattractive to install. This system could have a cost of € 16,000 installed, to which must be added the cost of the electrical consumption of the system.
    [0035] - Other systems on the market heat recovery based on heat pumps water-water in which the water added to the pool is heated to the passing the condenser and the extracted water is cooled as it passes through the evaporator. They are systems with good performance, although the cost and size required for their installation is high. A team of this type has a cost of approximately € 60,000. The problem of balancing flows in these equipments is also solved by means of complex systems.
    [0037] There are also equipment that performs a flow balancer function, but it is intended for power hydraulic circuits and is not sufficiently accurate:
    [0039] - They are generally pumps whose gears are coupled in pairs by common shafts. These equipments are prepared to work with high pressures in both lines and with lubricating liquids such as hydraulic oil. Its function is to balance flows to ensure a rhythmic movement of two hydraulic cylinders.
    [0041] - Other equipments are self-piloted valve bodies that work alternately by diverting flows, substantially equal, towards two outlet ducts
    [0043] Both teams suffer from a lack of accuracy when the circuits they serve have different pressure.
    [0045] For all that has been explained, they are inapplicable equipment to solve the problem that has arisen.
    [0046] brief explanation of the invention
    [0048] According to a first aspect, the present invention provides a heat recovery system between a lower pressure fluid source and a higher pressure fluid source. The system comprises:
    [0049] - a heat exchanger to which both sources are connected; Y
    [0050] - pumping equipment, which in turn comprises:
    [0051] ■ a first cylinder with connection ports to the higher pressure source and to the heat exchanger;
    [0052] ■ a second cylinder with connection ports to the lower pressure source and to the heat exchanger, and with a common rod to the first cylinder;
    [0053] ■ a first volumetric displacement member fixed to the rod, which generates in the first cylinder two first chambers that are alternately connected to the source of higher pressure or to the heat exchanger; Y
    [0054] ■ a second volumetric displacement member fixed to the rod, which generates two second chambers in the second cylinder;
    [0055] so that the higher pressure fluid provides the energy needed to pump the lower pressure fluid.
    [0057] Thanks to the particular characteristics of the pumping equipment and its conjugation with the heat exchanger, the system of the present invention is a simple, compact system with high volumetric accuracy, low cost and low energy consumption, since it can perform its function without more input of external energy than is necessary for the supervisory functions. The applicant does not know of any solution as effective as that provided by the present invention.
    [0059] According to a second aspect, the present invention also provides a method of heat recovery between a lower pressure fluid source and a higher pressure fluid source, by means of the system of the present invention. The procedure comprises the stages of:
    [0060] a) introducing fluid from the source at a higher pressure into one of the first chambers of the first cylinder, the other of the first chambers communicating with the heat exchanger;
    [0061] b) displacing the rod thanks to the energy provided by the higher pressure fluid, thus pumping the lower pressure fluid in the second cylinder towards the heat exchanger;
    [0062] c) circulating the fluid from the first cylinder and the fluid from the second cylinder through the heat exchanger;
    [0063] d) moving the rod in the opposite direction to that previously moved, by reversing the operation of the first chambers, thus pumping the lower pressure fluid in the second cylinder towards the heat exchanger; e) circulating the fluid from the first cylinder and the fluid from the second cylinder through the heat exchanger;
    [0064] f) cyclically repeat the previous steps.
    [0066] According to a third aspect, the present invention refers to the use of the heat recovery system according to the present invention in the renewal and treatment of water in swimming pools.
    [0068] Throughout the description and claims the word "comprise" and its variants are not intended to exclude other technical characteristics, additives, components or steps. Furthermore, the word "comprises" includes the case "consists of". For those skilled in the art, other objects, advantages and characteristics of the invention will emerge partly from the description and partly from the practice of the invention. T he following examples are provided by way of illustration, and are not intended to be limiting of the present invention. Furthermore, the present invention covers all possible combinations of particular embodiments indicated herein.
    [0070] description of the drawings
    [0072] To complement the description that is being made and in order to help a better understanding of the characteristics of the invention, a set of drawings is attached in which, with an illustrative and non-limiting nature, the following has been represented.
    [0073] Figure 1: Schematic view of an embodiment.
    [0074] Figure 2: Detail of figure 1.
    [0075] Figure 3: Schematic view of a second embodiment, with a double-body valve.
    [0076] Figure 4: Detail of figure 3.
    [0077] embodiments of the invention
    [0078] According to a first aspect, the present invention provides a heat recovery system between a lower pressure fluid source and a higher pressure fluid source.
    [0080] As shown in Figures 1, 2, 3 and 4, the system comprises a pumping equipment (23) and a heat exchanger (11) to which the lower pressure fluid source and the fluid source are connected. increased pressure.
    [0082] As will be explained later, the pumping equipment (23) continuously displaces the same proportion of fluid from the higher pressure source and fluid from the lower pressure source, making it a volumetric accuracy system.
    [0084] As used herein, the term "volumetric displacement member" is defined as a reciprocating part within a cylinder body to displace or receive movement from a fluid. For example, a piston , or a membrane, are volumetric displacement members.
    [0086] The pumping equipment (23) comprises a first cylinder (1) with connection ports to the higher pressure source and to the heat exchanger (11). It also comprises a second cylinder (2) with connection ports to the lower pressure source and to the heat exchanger (11). Both cylinders (1, 2) have a common rod (3) to which are attached two volumetric displacement members (4, 5) that generate 4 chambers (6, 6 ', 7, 7'): Specifically, a first member of volumetric displacement (4) generates two first chambers (6, 6 ') in the first cylinder (1), and a second volumetric displacement member (5) generates two second chambers (7, 7') in the second cylinder (2) .
    [0088] The first chambers (6, 6 ') of the first cylinder (1) are alternately connected to the higher pressure source or to the heat exchanger (11). While one of the first chambers is connected to the higher pressure source, the other is connected to the heat exchanger and vice versa.
    [0089] The pumping equipment (23) takes advantage of the pressure difference between fluids to carry out the pumping. The working fluid coming from the higher pressure source, for example water from a supply network (8), enters one of the first chambers (6, 6 ') of the first cylinder (1) and moves the first displacement member volumetric (4). The movement of the first volumetric displacement member (4) causes an increase in volume of one of the first chambers at the cost of reducing the volume of the other first chamber, which is evacuated. The movement of the first volumetric displacement member (4) is transmitted by the rod (3) to the second volumetric displacement member (5), and produces in the second cylinder (2) the pumping of the fluid coming from the lower pressure source towards the heat exchanger (11). According to what has been stated, the higher pressure fluid provides the energy necessary for pumping the lower pressure fluid.
    [0091] According to a particular embodiment, the higher pressure fluid source has a lower temperature than the lower pressure source. According to an alternative option, it is the lower pressure fluid source that has the lowest temperature. According to a more particular embodiment, the source of higher pressure is a supply network (8), and the source of lower pressure is a glass (9) of a swimming pool. Optionally, the higher pressure source can be a pump network, and the lower pressure source can be a reservoir.
    [0093] According to a particular embodiment shown in Figures 1 and 2, the first cylinder (1) has a connection port in each of its first chambers (6, 6 '). Each connection port acts alternatively as a suction port or as an evacuation port, thanks to the control of a distribution valve (10). While one port acts as a suction port, the other port acts as an evacuation port; and subsequently, the aspiration port becomes the evacuation port, and the other port becomes the aspiration port. Regarding the second cylinder (2), each of
    [0094] its second chambers (7, 7 ') have a suction port and an evacuation port. The distribution valve (10) controls the direction of the fluid in the first cylinder (1), its chambers communicating alternatively with the heat exchanger (11) or with the respective fluid source. In particular, the distribution valve (10) determines at each moment to which of the first chambers (6, 6 ') of the first cylinder (1) the fluid from the higher pressure source is derived and which is connected to the heat exchanger (11 ). According to a particular option shown in figures 1 and 2, the distribution valve (10) is a four-way, two-position valve (4/2 valve).
    [0096] According to an alternative embodiment shown in Figures 3 and 4, the arrangement of the connection ports in the first cylinder (1) is the same as in the second cylinder (2). Both cylinders have a connection port in each of their corresponding chambers, which alternately acts as a suction port or as an evacuation port, thanks to the control of a distribution valve (10). While one port on a cylinder acts as a suction port, the other port on the same cylinder acts as an exhaust port; and subsequently, the aspiration port becomes the evacuation port, and the other port becomes the aspiration port. In this case, the distribution valve (10) is a double-body valve. Each of the bodies of the distributor valve (10) controls the direction of the fluids in one of the cylinders, communicating their corresponding chambers in an alternative way with the heat exchanger (11) or with the respective fluid source. In particular, a body of the distributor valve (10) determines at each moment to which of the first chambers (6, 6 ') of the first cylinder (1) the fluid from the higher pressure source is derived and which one is connected to the heat exchanger. heat (11); the other body of the distribution valve (10) determines at each moment to which of the second chambers (7, 7 ') of the second cylinder (2) the fluid is derived from the lower pressure source and which is connected to the heat exchanger (eleven). According to the particular option shown in Figures 3 and 4, each of the distributor valve bodies (10) has a four-way, two-position design (4/2 valve).
    [0098] The distribution valve (10) can be programmed by time or it can be controlled by actuating means, such as for example by pilot devices. According to a particular embodiment, the pumping equipment (23) comprises piloting devices (12) at the end of stroke of the stem (3), which control the distribution valve (10). Optionally, the piloting devices (12) can be arranged at the limit switches of the volumetric displacement members (4, 5).
    [0100] L os piloting devices (12) acting on the poppet valve (10) so that each time a control device (12) detects the end of the corresponding race (or earlier if more convenient), a distributor valve ( 10) alternate the first chamber (6, 6 ') that is emptied and the one that is filled from the higher pressure source. This implies the movement of the rod (3) and the volumetric displacement members (4, 5) in the opposite direction. L os piloting devices (12) may be electrical, hydraulic, or electronic type.
    [0102] T he fluid evacuated from the first cylinder (1) and the second cylinder (2) are directed to the heat exchanger (11). In the heat exchanger (11) the heat energy of the higher temperature fluid is used to increase the temperature of the other fluid. In the figures, the heat exchanger (11) is parallel flow, but can be countercurrent flow without thereby departing from the scope of the present invention.
    [0104] According to a particular embodiment shown in the figures, the fluid that exits the heat exchanger (11) from the source of higher pressure and the first cylinder (1) is diverted to the source of lower pressure. The fluid that leaves the heat exchanger (11) coming from the lower pressure source and the second cylinder (2) is diverted to the outlet of the system, for example to be disposed of to a drain or to send it to an external use.
    [0106] The system of the present invention may comprise an inlet valve (24) that controls fluid inlet to the system and an outlet valve (25), that controls fluid outlet from the system. The operation of the system is continuous while the inlet valve (24) and the outlet valve (25) are open, and stops when at least one of them is closed.
    [0108] The regulation of the system (for example the renewal flow of the water in a swimming pool) can be carried out by acting on the pressure of the fluid coming from the higher pressure source. For example, it may have a pressure regulator (13) or a throttle valve.
    [0110] As mentioned above, the pumping equipment (23) continuously displaces the same proportion of fluid from the higher pressure source and fluid from the lower pressure source, so it is a volumetric accuracy system. According to a particular embodiment, the first cylinder (1) and the second cylinder (2) have the same dimensions, to ensure that the displaced volume of fluid from the higher pressure source equals the displaced volume of fluid from the lower pressure source. As the cylinders have the same dimensions and the displacement of the volumetric displacement members (4, 5) also, the volumes of both fluids in each cycle are identical. Consequently, there is no need to monitor the regulation or adjustment and there is no risk of overflowing or overflowing.
    [0112] Optionally, the dimensions of the first cylinder (1) may be different than the dimensions of the second cylinder (2) if a different ratio of higher pressure fluid and lower pressure fluid is desired. For example, it may be necessary to introduce more water than extracted into the pool glass (9) to compensate for evaporation, overflows and other losses. In that case, the cylinders may have different sections. The differences in volume of the volumetric displacement members (4, 5), for example as a function of their thickness, can also be used to modify the proportion.
    [0114] According to a particular embodiment, the volumetric displacement members (4, 5) are membranes. To ensure precision in the desired ratio, it is necessary for the membranes to be inextensible, such as for example lining membranes. According to an alternative option, the volumetric displacement members (4, 5) are pistons.
    [0116] According to an embodiment shown in the figures, the system includes non-return devices (15) to ensure the function of each connection port of the cylinders and that the flow of fluids is carried out in the desired directions. The system can also comprise other devices, such as one or more filters (17) to prevent fouling of the heat exchanger (11); one or more pressure gauges (16) and one or more temperature sensors (19) to control correct operation and warn of possible fouling of the heat exchanger (11); one or more hydropneumatic accumulators (14) to avoid transient overpressures, for example at the instant that the rod (3) reaches the end of the stroke and the pumping changes direction; one or more flow detectors (18) that cut off the flow of fluid if no flow is detected at any point in the system, to check for leaks and prevent flooding or damage in the event of pipe breakage; etc.
    [0117] Optionally, the system can also comprise one or more shutoff solenoid valves (20) that receive information from one or more flow detectors (18), and cut off the flow of fluid if it is detected that it does not reach the desired destination. A control system (26) can also be provided, which controls the interrelation between the flow detectors (18) and the corresponding cut-off solenoid valves (20). The control system (26) can be of the mechanical, electrical or electronic type, for example a programmable automaton. Specifically, as shown in Figures 1 and 3, the system can comprise:
    [0118] - Two flow detectors (18): one in the conduit that communicates the heat exchanger (11) with the pool (9) of the pool, and another in the conduit that communicates the heat exchanger (11) with the outlet of the system;
    [0119] - Two shut-off solenoid valves (20): one in the conduit that communicates the supply network (8) with the first cylinder (1), and another in the conduit that communicates the pool glass (9) with the second cylinder ( two).
    [0120] - A control system (26) to which the two flow detectors (18) and the two cut-off solenoid valves (20) are attached.
    [0121] In this way, if the flow detectors (18) detect that no fluid reaches the pool (9), or that no fluid comes out of the heat exchanger (11) towards the outlet of the system, they send a signal to the system control (26), and this actuates the corresponding cut-off electrovalves (20), stopping the flow of the supply network (8) and / or the outflow of the glass (9) of the pool.
    [0123] The system of the present invention is optimized for low pressures (less than 10 bar). For example, the pressure of the working fluid coming from the supply network (8) is between 2 and 5 bar, and the pressure of the water in the glass (9) of a swimming pool is usually approximately 0.25 bar (atmospheric pressure plus the hydrostatic pressure corresponding to the height between the surface level of the pool and the pumping room).
    [0125] According to a second aspect, the present invention also provides a method of heat recovery between a lower pressure fluid source and a higher pressure fluid source, by means of the system of the present invention. The procedure comprises the following stages:
    [0126] a) introduce fluid from the higher pressure source into one of the first chambers (6, 6 ') of the first cylinder (1), and simultaneously communicate the other of the first chambers (6, 6') with the heat exchanger ( eleven);
    [0127] b) displacing the rod (3) thanks to the energy provided by the higher pressure fluid, thus pumping the lower pressure fluid in the second cylinder (2) towards the heat exchanger (11).
    [0128] The higher pressure fluid provides the energy needed to pump the lower pressure fluid. Specifically, according to the particular option shown in the figures, the higher pressure fluid that has been introduced into one of the first chambers (6, 6 ') pushes and produces the movement of the first volumetric displacement member (4), and consequently the movement of the stem (3) and of the second volumetric displacement member (5), with the consequent pumping of the lower pressure fluid;
    [0130] c ) circulating the fluid from the first cylinder (1) and the fluid from the second cylinder (2) through the heat exchanger (11);
    [0131] d) moving the stem (3) in the opposite direction to that previously moved, by reversing the filling direction of the first chambers (6, 6 '), thus pumping the lower pressure fluid into the second cylinder (2) towards the heat exchanger (11).
    [0132] For the development of this stage, fluid from the higher pressure source is introduced into the chamber that previously communicated with the heat exchanger (11), and simultaneously the chamber in which it was previously communicated with the heat exchanger (11) it introduced the fluid from the source at a higher pressure;
    [0133] e) circulating the fluid from the first cylinder (1) and the fluid from the second cylinder (2) through the heat exchanger (11);
    [0134] f) cyclically repeat the previous steps.
    [0136] According to a particular embodiment, the method comprises the additional steps
    [0137] c ') and e'), after steps c) and e) respectively, of diverting the fluid from the first cylinder (1) to the lower pressure source, and simultaneously diverting the fluid from the second cylinder (2) to the outlet of the system.
    [0139] According to a particular embodiment, the changes of direction of the movement of the stem (3) are developed by the action of the distributor valve (10), which derives the fluid from the higher pressure source alternately to one or the other of the first chambers (6, 6 ') of the first cylinder (1).
    [0141] Thanks to the particular characteristics of the pumping equipment and its conjugation with the heat exchanger, the higher pressure fluid provides the mechanical energy necessary for pumping the lower pressure fluid, and the higher temperature fluid provides the heat energy for the increase. temperature of the lower temperature fluid, which results in significant energy savings, very useful for example in the case of renovation and treatment of swimming pool water. In this way, the system of the present invention is a simple, compact, volumetric accuracy, low cost and low energy consumption system, since it can perform its function without more external energy input than is necessary for the functions. supervision.
    [0143] In addition to the application of the present invention in the renovation and treatment of water in swimming pools, it is also applicable in other fields in which fluids are handled, such as water treatment in general, the chemical, pharmaceutical or food industries.
    [0145] The applicant does not know of any solution as effective as that provided by the present invention.
    [0147] Although the present invention has been described with reference to particular embodiments thereof, those skilled in the art will be able to make modifications and variations to the above teachings without thereby departing from the scope and spirit of the present invention.
    权利要求:
    Claims (14)
    [1]
    1. Heat recovery system between a lower pressure fluid source and a higher pressure fluid source, characterized in that it comprises:
    - a heat exchanger (11) to which both sources are connected; Y
    - a pumping equipment (23), which in turn comprises:
    • a first cylinder (1) with connection ports to the higher pressure source and to the heat exchanger (11);
    • a second cylinder (2) with connection ports to the lower pressure source and to the heat exchanger (11), and with a rod (3) common to the first cylinder (1);
    • a first volumetric displacement member (4) fixed to the rod (3), which generates in the first cylinder (1) two first chambers (6, 6 ') that are alternately connected to the higher pressure source or to the heat exchanger (eleven); Y
    • a second volumetric displacement member (5) fixed to the rod (3), which generates two second chambers (7, 7 ') in the second cylinder (2); so that the higher pressure fluid provides the energy needed to pump the lower pressure fluid.
    [2]
    System according to claim 1, in which the higher pressure fluid source is a supply network (8) at a lower temperature than the lower pressure fluid source, which is a glass (9) of a swimming pool.
    [3]
    System according to any of the preceding claims, comprising a distribution valve (10) that diverts the fluid from the higher pressure source alternately to one or the other of the first chambers (6, 6 ') of the first cylinder (1).
    [4]
    System according to claim 3, in which the distribution valve (10) is a double-body valve, which diverts the fluid from the lower pressure source alternately to one or the other of the second chambers (7, 7 ') of the second cylinder (2).
    [5]
    System according to any of claims 3 or 4, in which the pumping equipment (23) comprises piloting devices (12) at the end of stroke of the stem (3), which control the distribution valve (10).
    [6]
    System according to any of the preceding claims, in which the fluid from the higher pressure source is diverted to the lower pressure source after passing through the heat exchanger (11)
    [7]
    System according to any of the preceding claims, in which the first cylinder (1) and the second cylinder (2) have the same dimensions.
    [8]
    System according to any of the preceding claims, in which the first volumetric displacement member (4) and the second volumetric displacement member (5) are inextensible membranes.
    [9]
    System according to any of the preceding claims, comprising one or more hydropneumatic accumulators (14) to avoid transient overpressures.
    [10]
    System according to any of the preceding claims, comprising one or more flow detectors (18) that cut off the flow of fluid if they do not detect flow.
    [11]
    11. Heat recovery method between a lower pressure fluid source and a higher pressure fluid source, by means of the system defined in any of claims 1 to 10, characterized in that it comprises the steps of:
    a) introduce fluid from the higher pressure source into one of the first chambers (6, 6 ') of the first cylinder (1), the other of the first chambers (6, 6') communicating with the heat exchanger (11) ;
    b) moving the stem (3) thanks to the energy provided by the higher pressure fluid, thus pumping the lower pressure fluid in the second cylinder (2) towards the heat exchanger (11);
    c) circulating the fluid from the first cylinder (1) and the fluid from the second cylinder (2) through the heat exchanger (11);
    d) moving the rod in the opposite direction to that which it was moving previously, by reversing the direction of filling of the first chambers (6, 6 '), thus pumping the fluid with lower pressure in the second cylinder (2) towards the exchanger heat (11).
    e) circulating the fluid from the first cylinder (1) and the fluid from the second cylinder (2) through the heat exchanger (11);
    f) cyclically repeat the previous steps.
    [12]
    12. Process according to claim 10, comprising additional steps c ') and e'), after steps c) and e) respectively, of diverting the fluid from the first cylinder (1) to the lower pressure source.
    [13]
    13. Method according to any of claims 10 or 11, in which the changes in direction of movement of the stem (3) are developed by the action of the distributor valve (10), which alternately derives the fluid from the source of higher pressure to one or the other of the first chambers (6, 6 ') of the first cylinder (1).
    [14]
    14. Use of the system defined in any of claims 1 to 10, in the renewal and treatment of water in swimming pools.
    类似技术:
    公开号 | 公开日 | 专利标题
    ES2416063T3|2013-07-30|Refrigerator for seawater intake box with integrated system for protection against scale
    US7214315B2|2007-05-08|Pressure exchange apparatus with integral pump
    ES2287732T3|2007-12-16|THREE-WAY SPRING VALVE FOR WORK INTERCHANGE.
    ES2617661T3|2017-06-19|Heat recovery device from wastewater, thermal system that includes such device and procedure
    ES2784463B2|2021-02-19|Heat recovery system and procedure
    CN208765116U|2019-04-19|A kind of dehumidifier
    ES2302644B1|2009-05-25|SYSTEM FOR THE IMPULSION OF A FLUID BY RECYCLING FROM A LOW PRESSURE MEDIUM TO A HIGH PRESSURE MEDIUM.
    GB2357320A|2001-06-20|Energy recovery device
    ES2408320T3|2013-06-20|High pressure lubricant pump for steel mills
    CN103245137B|2015-02-25|Two-position four-way reversing valve for automotive air conditioner
    ES2813850T3|2021-03-25|Fluid system
    BRPI0806478B1|2019-07-16|POSITIVE DISPLACEMENT PUMP APP AND SINGLE DRIVE DISPLACEMENT DEVICE
    ES2600323T3|2017-02-08|Plant and process of treating a liquid by reverse osmosis
    GB1478419A|1977-06-29|Reversible heat exchanger or regenerator systems
    CN103913316B|2016-08-17|A kind of water-ethylene glycol type water source heat pump units performance testing device
    WO1997029049A1|1997-08-14|Sea water reverse osmosis desalination system, with permanent renewal of the water to be de-salted
    GB1215586A|1970-12-09|Pumping and cooling unit
    CN205064921U|2016-03-02|Detachable pipeline switching -over valve
    CN1601202A|2005-03-30|Horizontal-swing type heat exchanger rig in pouring to and sucking back mode for single well
    CN103245128B|2015-11-11|Used in mariculture cold water, source pump and using method thereof
    SU1601319A1|1990-10-23|Hydraulic device for controlling drilling equipment
    CN104848593A|2015-08-19|Printing and dyeing heat-treating machine and control method thereof
    RU1795253C|1993-02-15|Facility for thermal and hydraulic tests of liquid-to-liquid heat exchangers
    ES2848924A1|2021-08-12|ONE-WAY PRESSURE EXCHANGE DEVICE FOR PLANTS REVERSE OSMOSIS DESALINATION PLANTS |
    RU145302U1|2014-09-20|RADIOELECTRONIC EQUIPMENT LIQUID COOLING SYSTEM
    同族专利:
    公开号 | 公开日
    ES2784463B2|2021-02-19|
    WO2021219908A1|2021-11-04|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    CN104676952A|2013-11-29|2015-06-03|中煤张家口煤矿机械有限责任公司|Method for producing hot bath water by use of waste heat of production circulating water|
    CN204388413U|2014-11-14|2015-06-10|平武臣|A kind of system recycling waste water residual heat for pond, water storage box at a distance|
    CN204373452U|2014-12-24|2015-06-03|深圳市大众新源节能科技有限公司|Return air residual heat in mine recycle device|
    CN106705430A|2017-03-09|2017-05-24|郑州精诚热力节能服务有限公司|Waste heat recovering system of bathing waste water|
    法律状态:
    2020-09-25| BA2A| Patent application published|Ref document number: 2784463 Country of ref document: ES Kind code of ref document: A1 Effective date: 20200925 |
    2021-02-19| FG2A| Definitive protection|Ref document number: 2784463 Country of ref document: ES Kind code of ref document: B2 Effective date: 20210219 |
    优先权:
    申请号 | 申请日 | 专利标题
    ES202030359A|ES2784463B2|2020-04-28|2020-04-28|Heat recovery system and procedure|ES202030359A| ES2784463B2|2020-04-28|2020-04-28|Heat recovery system and procedure|
    PCT/ES2020/070783| WO2021219908A1|2020-04-28|2020-12-11|System and method for heat recovery|
    [返回顶部]