CN217900220U

CN217900220U - Evaporation condensation heat pump unit with hydraulic module

Info

Publication number: CN217900220U
Application number: CN202221961602.XU
Authority: CN
Inventors: 蒋松林; 章立标; 陈绍辉; 李沛; 陈超; 瞿康阳; 郭卫康
Original assignee: Zhejiang King Co ltd
Current assignee: Zhejiang King Co ltd
Priority date: 2022-07-28
Filing date: 2022-07-28
Publication date: 2022-11-25
Anticipated expiration: 2032-07-28

Abstract

The application belongs to the technical field of air conditioners, and in particular relates to an evaporation and condensation heat pump unit with a hydraulic module, which comprises a compressor, a four-way valve, a fin coil, an evaporative condenser, a liquid storage device, a drying filter, a throttling device, an air conditioner water side heat exchanger and a gas-liquid separator, wherein the compressor, the four-way valve, the fin coil, the evaporative condenser, the liquid storage device, the drying filter, the throttling device, the air conditioner water side heat exchanger and the gas-liquid separator are connected in a refrigeration cycle loop, and the air conditioner water side heat exchanger is connected with the hydraulic module unit. The unit can meet the cold and heat source requirements of an air conditioning system, the advantages of an evaporation cooling unit and an air cooling unit are fully combined, precooling is carried out through the air cooling fin coil and secondary condensation is carried out through the evaporation condenser during the refrigeration operation, the condensation temperature is greatly reduced, and the refrigeration energy efficiency is improved; when heating, the heat of outdoor air is absorbed by the evaporative cooling coil and the fin coil together, so that the high-efficiency and high-reliability air-conditioning system has high heating energy efficiency. Meanwhile, the unit is provided with the hydraulic module, and can be put into use only by connecting the water pipe and the power cable when in use, so that the engineering period is short, a refrigeration machine room is not required to be additionally arranged, and the operating cost is obviously reduced.

Description

Evaporation condensation heat pump unit with hydraulic module

Technical Field

The application belongs to the technical field of air conditioners, and particularly relates to an evaporation condensation heat pump unit with a hydraulic module.

Background

With the rapid development of social economy, the energy problem becomes a bottleneck restricting the high-speed development of economy in China, and how to improve the comprehensive operation efficiency of the air conditioner host is an important problem which needs to be solved urgently in the refrigeration industry. In the prior art, for a central air conditioning system with cooling and heating requirements, the following two air conditioning modes are generally adopted: (1) Water-cooling water chilling unit + boiler, (2) air-cooling heat pump unit.

The system comprises a water-cooled water chilling unit and a boiler, wherein when the system is used for refrigerating, the water-cooled water chilling unit supplies chilled water of 7 ℃ to the tail end of an air conditioner such as a fan coil and the like so as to cool air in a room, a water-cooled condenser transfers condensation heat to cooling water, and the cooling water is pumped to a cooling tower by a cooling water pump so as to discharge the condensation heat to outdoor atmosphere. Therefore, the water cooling system is additionally provided with a cooling water intermediate heat exchange link, the condensation temperature of the unit is high, and a high-power water pump is needed to drive cooling water to circulate, so that the system is low in energy efficiency and high in power consumption. In order to meet heating requirements in winter and transition seasons, a water-cooling cold water system needs to be additionally provided with heating equipment such as a boiler and the like to meet heating requirements, and a conventional oil-fired and gas-fired boiler is low in energy efficiency, large in pollution and complex in operation and maintenance. Meanwhile, the water-cooling air conditioning system has the following problems: (1) the water-cooled host needs a special machine room, so that precious building space is wasted; (2) cooling water systems such as a cooling tower, a cooling water pump, a filter, a descaling instrument and the like, chilled water systems such as a chilled water pump, a constant pressure water replenishing device and a filter and related parts such as valves, pipelines and the like need to be configured, so that an air conditioning system is complex; meanwhile, the users or engineering parties can carry out on-site surveying and mapping installation on the construction site only after purchasing goods from different part manufacturers, so that the construction period is long, the engineering efficiency and quality are low, and the final investment cost is high; (3) and when in actual use, the linkage of the main machine, the cooling water pump and the cooling tower is poor.

The air-cooled heat pump unit is a cold and hot dual-purpose device and can meet the requirements of an air-conditioning system for refrigeration in summer and heating in winter. When refrigerating in summer, the air-cooled heat pump unit discharges a large amount of heat released by high-temperature and high-pressure gas compressed by the compressor in the condensation process to outdoor air through the fin heat exchanger, the specific heat capacity and the density of the air are low, the temperature rise of the air is generally about 10 ℃, and the average temperature of inlet air and outlet air is high; meanwhile, the heat transfer coefficient of the air side is low, and the required heat exchange temperature difference is large. Therefore, the condensation temperature of the air-cooled heat pump unit during refrigeration is very high, the refrigeration energy efficiency is usually only between 2.6 and 3.0, the energy consumption of the system is overlarge, and the national energy-saving and emission-reducing policy is not met. Meanwhile, similar to a water-cooling water chilling unit, an air-cooling heat pump product also needs to be provided with chilled water systems such as a chilled water pump, a constant-pressure water replenishing device and a filter, and related parts such as valves and pipelines on site, and an air-conditioning system is complex.

Disclosure of Invention

In order to overcome the defects that the existing air-cooled heat pump unit is low in refrigeration energy efficiency in summer, and a water-cooled unit cannot meet the requirements for refrigeration and heating independently, and a conventional unit needs to be provided with a chilled water pump, a constant-pressure water supplementing device, a filter, related valves, pipelines and other parts on site, the air-conditioning system is complex and long in construction period, and needs an independent air-conditioning machine room and the like, the evaporation-condensation heat pump unit with the hydraulic module can realize ultrahigh-energy-efficiency refrigeration in summer and meet the requirements for heating in winter, and meanwhile, the unit is internally provided with an air-conditioning water conservancy module, and can be put into operation as long as an air-conditioning water pipe and a power cable are connected during installation and use.

On one hand, the application provides an evaporative condensation heat pump unit with a hydraulic module, the unit comprises a compressor 1, a four-way valve 2, a fin coil 3, an evaporative condenser 4, a liquid storage device 5, a drying filter 6, a throttling device 7, an air-conditioning water side heat exchanger 8 and a gas-liquid separator 9 which are sequentially connected in a refrigeration cycle loop, a high-pressure outlet of the compressor 1 is connected with a port d of the four-way valve 2, a port e of the four-way valve 2 is connected with the fin coil 3, a port s of the four-way valve 2 is connected with an inlet of the gas-liquid separator 9, and a port c of the four-way valve 2 is connected with the air-conditioning water side heat exchanger 8; the liquid side header interface 31 of the fin coil 3 is connected with the gas side interface of the evaporative condenser 4 through a first refrigerant channel 15, a first stop valve 16 is arranged in the first refrigerant channel 15, and the liquid side distribution head 32 of the fin coil 3 is communicated with the gas side interface of the evaporative condenser 4 through a second refrigerant channel 17; the air-conditioning water side heat exchanger 8 is also provided with a first bypass 21 directly connected with the inlet of the liquid reservoir 5, and the outlet of the throttling device 7 is also provided with a second bypass 22 directly connected with the evaporative condenser 4; the air-conditioning water side heat exchanger 8 is connected with a hydraulic module unit 10 comprising a secondary refrigerant outflow pipeline and a return pipeline, and the hydraulic module unit 10 and other parts of the unit are arranged on an integral frame.

Further, a filtering device 101 for filtering and removing impurities is arranged at the downstream of an inlet of the secondary refrigerant return pipeline, the secondary refrigerant enters the air-conditioning water side heat exchanger 8 through a water pump 102 after being filtered, a water supplementing device 103 is arranged between the inlet of the return pipeline and the filtering device 101, and an expansion tank 104 is arranged between the filtering device 101 and the water pump 102.

Further, a check valve 105 is arranged in the outflow pipeline of the refrigerating medium.

Further, a first check valve 11 is arranged in a pipeline through which a liquid side interface of the evaporative condenser 4 is communicated with the liquid accumulator 5, and the first check valve 11 controls the high-pressure liquid refrigerant condensed by the evaporative condenser 4 to flow to the liquid accumulator 5; and a second one-way valve 12 is arranged in a pipeline communicated with the air-conditioning water side heat exchanger 8 through the throttling device 7, and the second one-way valve 12 controls the throttling device 7 to throttle into a low-temperature low-pressure gas-liquid mixed refrigerant to flow to the air-conditioning water side heat exchanger 8.

Further, a first bypass 21 is arranged on a pipeline between an outlet of the first check valve 11 and the liquid storage device 5, the other end of the first bypass 21 is connected with a pipeline between an outlet of the second check valve 12 and the air-conditioning water side heat exchanger 8, a fourth check valve 14 is arranged in the first bypass 21, and the fourth check valve 14 controls the refrigerant condensed into high-pressure liquid by the air-conditioning water side heat exchanger 8 to flow to the liquid storage device 5; a second bypass 22 is arranged on a pipeline between the throttling device 7 and the second one-way valve 12, the other end of the second bypass 22 is communicated with a liquid side interface of the evaporative condenser 4, a third one-way valve 13 is arranged in the second bypass 22, and the third one-way valve 13 controls the throttling device 7 to throttle low-temperature low-pressure gas-liquid mixed refrigerant to flow to the evaporative condenser 4.

Further, the first check valve 16, the first check valve 11, the second check valve 12, the third check valve 13, and the fourth check valve 14 are electrically operated.

Further, the first stop valve 16 is an electric ball valve, an electromagnetic valve, or an electronic expansion valve; the first check valve 11, the second check valve 12, the third check valve 13 and the fourth check valve 14 are electric ball valves.

Further, the water pump 102 is a single pump or a water pump set with multiple water pumps connected in parallel.

Further, the water pump 102 is controlled by a fixed frequency or a variable frequency.

Further, the water supply device 103 is an automatic water supply valve or a manual water supply valve.

The technical scheme has the following advantages or beneficial effects: the unit of this application possesses refrigeration, heats the function, can satisfy central air conditioning system's cold and hot source demand. When the unit is operated in a refrigerating mode, the condensing temperature can be greatly reduced in an evaporation and condensation mode, the refrigerating energy efficiency is improved, and the unit energy efficiency is far higher than that of an air cooling unit and a water cooling unit. Meanwhile, through the process optimization design, the fan part of the fin coil pipe is opened to pre-cool the high-temperature refrigerant during the refrigeration operation, so that the temperature of the refrigerant entering the evaporative condenser can be reduced, the scaling of the heat exchange coil pipe of the evaporative condenser is effectively avoided, the condensation temperature of a unit can be further reduced, and the energy conservation is realized. When heating, the heat of outdoor air is absorbed by the evaporative cooling coil and the fin coil together, so that the device has high heating energy efficiency and reliability, and is efficient and energy-saving. The unit fully combines the advantages of air cooling and evaporative cooling equipment, is provided with the hydraulic module, can be put into use only by connecting a water pipe and a power cable when in use, has short engineering period, does not need to additionally arrange a refrigerating machine room, occupies small land and saves space; and the operation energy efficiency of the system can be effectively improved, and the operation cost is obviously reduced.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is obvious to a person skilled in the art that other figures can also be obtained from the provided figures without inventive effort.

FIG. 1 is a flow chart of an evaporative condensation heat pump unit system with a water conservancy module according to an embodiment of the present application.

Wherein: 1. a compressor; 2. a four-way valve; 3. a finned coil; 31. a liquid side header interface; 32. a liquid side distribution head; 4. an evaporative condenser; 5. a reservoir; 6. drying the filter; 7. a throttling device; 8. an air conditioner water side heat exchanger; 9. a gas-liquid separator; 10. a hydraulic module unit; 11. a first check valve; 12. a second one-way valve; 13. a third check valve; 14. a fourth check valve; 15. a first refrigerant passage; 16. a stop valve; 17. a second refrigerant passage; 21. a first bypass; 22. a second bypass; 101. a filtration device; 102. a water pump; 103. a water replenishing valve; 104. an expansion tank; 105. a check valve.

Detailed Description

The technical solutions in the embodiments of the present application are clearly and completely described below with reference to the drawings of the present application. It is obvious that the described embodiments are only a few embodiments of the present application, which are intended to explain the inventive concept. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present application without making any creative effort, shall fall within the protection scope of the present application.

The terms "first", "second", etc. used in the description are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. The term "plurality" means two or more unless specifically limited otherwise.

Unless expressly stated or limited otherwise, the terms "connected," "connected," and the like as used in the description are to be construed broadly, and for example, as meaning a fixed connection, a removable connection, or an integral part; can be mechanical connection and electrical connection; may be directly connected, or indirectly connected through an intermediate; either as communication within the two elements or as an interactive relationship of the two elements. Specific meanings of the above terms in the examples can be understood by those of ordinary skill in the art according to specific situations.

Reference throughout this specification to "one particular embodiment" or "an example" means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Referring to fig. 1, a specific embodiment of the present application proposes an evaporative cold and hot pump unit with a hydro module, which includes a compressor 1, a four-way valve 2, a finned coil 3, an evaporative condenser 4, a liquid reservoir 5, a dry filter 6, a throttling device 7, an air-conditioning water-side heat exchanger 8, and a gas-liquid separator 9 connected in a refrigeration cycle loop. The high-pressure outlet of the compressor 1 is connected with a port d of a four-way valve 2, a port e of the four-way valve 2 is connected with a fin coil 3, a port s of the four-way valve 2 is connected with an inlet of a gas-liquid separator 9, and a port c of the four-way valve 2 is connected with a heat exchanger 8 at the water side of an air conditioner.

The liquid side header interface 31 of the fin coil 3 is communicated with the gas side interface of the evaporative condenser 4 through a first refrigerant channel 15, a first stop valve 16 is arranged in the first refrigerant channel 15, and the first stop valve 16 is opened in a cooling mode and closed in a heating mode. The liquid side distribution head 32 of the fin coil 3 is communicated with the gas side interface of the evaporative condenser 4 through a second refrigerant channel 17.

A first check valve 11 is arranged in a pipeline which is communicated with the liquid side interface of the evaporative condenser 4 and the liquid storage device 5, and the first check valve 11 controls the condensed high-pressure liquid refrigerant to flow from the evaporative condenser 4 to the liquid storage device 5. And a second one-way valve 12 is arranged in a pipeline communicated with the air-conditioning water side heat exchanger 8 through the throttling device 7, and the second one-way valve 12 controls throttling to be low-temperature low-pressure gas-liquid mixed refrigerant which flows to the air-conditioning water side heat exchanger 8 through the throttling device 7.

A first bypass 21 is arranged on a pipeline between an outlet of the first check valve 11 and the liquid storage device 5, the other end of the first bypass 21 is connected with a pipeline between an outlet of the second check valve 12 and the air-conditioning water side heat exchanger 8, a fourth check valve 14 is arranged in the first bypass 21, and the fourth check valve 14 controls the refrigerant condensed into high-pressure liquid to flow from the air-conditioning water side heat exchanger 8 to the liquid storage device 5. A second bypass 22 is arranged on a pipeline between the throttling device 7 and the second check valve 12, the other end of the second bypass 22 is communicated with a liquid side interface of the evaporative condenser 4, a third check valve 13 is arranged in the second bypass 22, and the third check valve 13 controls throttling to enable low-temperature low-pressure gas-liquid mixed refrigerant to flow to the evaporative condenser 4 from the throttling device 7.

The air-conditioning water side heat exchanger 8 is connected with a hydraulic module unit 10, and the hydraulic module unit 10 comprises a secondary refrigerant outflow pipeline and a secondary refrigerant return pipeline. The return line of the secondary refrigerant is composed of a filtering device 101, a water pump 102, a water supplementing device 103 and an expansion tank 104. The secondary refrigerant flows to the filtering device 101 through the inlet of the return pipeline for filtering and impurity removal, enters the water pump 102 after the secondary refrigerant is filtered, is pumped out through the water pump 102 and enters the air-conditioning water side heat exchanger 8. And a water supplementing device 103 is arranged between the inlet of the return pipeline and the filtering device 101 of the return pipeline of the secondary refrigerant. When the coolant in the coolant system is insufficient, the coolant in the system can be supplemented by the water replenishing device 103. The coolant return line is provided with an expansion tank 104 between the filter device 101 and the water pump 102, and the expansion tank 104 plays a role in buffering the pressure in the coolant system and partially supplementing water, and is mainly used for absorbing the volume of coolant increased due to temperature change when the unit operates a heating function. And a check valve 105 is arranged in the secondary refrigerant outflow pipeline. The coolant flowing out of the air-conditioning water-side heat exchanger 8 is supplied to the user side by the water pump 102 through the check valve 105. When the water pump 102 stops operating, the coolant in the system may flow back due to the lack of a power source, and the check valve 105 is used for blocking the coolant, so as to prevent impact on the shell-and-tube heat exchanger and other coolant pipeline accessories during the coolant flowing back.

Preferably, the hydraulic module unit 10 is integrated inside the unit, so that the engineering quantity of an external hydraulic system is reduced, and the construction time is shortened. The hydraulic module unit 10 is arranged in the unit, so that the linkage between the unit and the water pump is improved, and the energy waste caused by long-time operation of the water pump after the unit is stopped can be avoided. Of course, the hydraulic module unit 10 may also be a module independently and connected to the unit through a pipe. The water pump 102 may be a single pump, or may be a water pump set in which a plurality of water pumps are connected in parallel, and the water pump may be controlled in a fixed frequency manner or in a variable frequency manner. For specific use in different places, the water replenishing device 103 may be one of an automatic water replenishing valve, a manual water replenishing valve, and an automatic water replenishing device.

Preferably, in order to better satisfy the functions and performance of the unit, the first stop valve 16 is preferably an electric stop valve, such as an electric ball valve, a solenoid valve or an electronic expansion valve, and can be controlled to satisfy the requirements of different operation modes of the unit by opening and closing, but of course, other types of valves are also possible. The first check valve 11, the second check valve 12, the third check valve 13 and the fourth check valve 14 are preferably electric stop valves, such as electric ball valves, and meet the requirements of different operation modes of the unit through on-off control, but of course, the valves may be other types of valves.

When the unit operates in a cooling mode, high-temperature and high-pressure gas discharged by a compressor 1 enters a fin coil 3 through ports d and e of a four-way valve 2 to perform primary heat exchange, and partial heat is discharged to outdoor air during the primary heat exchange. The refrigerant then enters the evaporative condenser 4 through both the first refrigerant channel 15 and the second refrigerant channel 17, further discharging heat to the outdoor air and circulating water, and further condensing into a high pressure liquid refrigerant. In order to improve the operation energy efficiency and reliability of the unit and delay the scaling of the evaporative cooling coil, the fan part of the fin coil 3 is opened during the refrigeration operation, so that the temperature of a refrigerant entering the evaporative condenser 4 can be reduced, the solubility of calcium and magnesium ions in a water film on the surface of the heat exchange tube is improved, the calcium and magnesium ions are effectively prevented from being separated out and scaling on the surface of the heat exchange tube, the condensation temperature of the unit can be further reduced, and the energy conservation is realized. The condensed high-pressure liquid refrigerant flows through the first one-way valve 11, the liquid reservoir 5 and the drying filter 6, is throttled into a low-temperature low-pressure gas-liquid mixed refrigerant by the throttling device 7, then flows through the second one-way valve 12 to enter the air-conditioning water side heat exchanger 8, absorbs the heat of the air-conditioning circulating water in the air-conditioning water side heat exchanger 8, is evaporated into a low-pressure gas refrigerant, and returns to the compressor 1 for recirculation after passing through the four-way valve 2 connectors c and s and the gas-liquid separator 9.

In the control method of the evaporation cold and heat pump unit with the hydraulic module, when the unit operates in a heating mode, the first stop valve 16 is in a closed state, high-temperature and high-pressure gas discharged by the compressor 1 enters the air-conditioning water side heat exchanger 8 through the interfaces d and c of the four-way valve 2 by reversing the four-way valve 2 to discharge heat to air-conditioning circulating water and then is condensed into high-pressure liquid, then enters the liquid reservoir 5 and the drying filter 6 through the fourth one-way valve 14, is throttled into low-temperature and low-pressure gas-liquid mixed refrigerant through the throttling device 7, enters the evaporation condenser 4 through the third one-way valve 13, the heat absorbed by the refrigerant in the evaporation condenser 4 is partially evaporated, the low-temperature and low-pressure refrigerant with two phases of gas and liquid enters the air-cooling fins 3 through the second refrigerant channel 17 to absorb heat in the air and then is evaporated into low-pressure gas, and then returns to the compressor 1 through the interfaces e and s of the four-way valve 2 and the gas-liquid separator 9 to be circulated again. In order to further improve the heating energy efficiency of the unit, the fan of the evaporative condenser 4 is in an operating state.

Through the technical measures, the unit well overcomes the limitations of the water cooling host and the air cooling host, fully combines the advantages of air cooling and evaporative cooling equipment, can meet the cold and heat source requirements of a central air conditioning system, can greatly reduce the condensation temperature in an evaporative condensation mode when the unit is operated for refrigeration, improves the refrigeration energy efficiency, and has the unit energy efficiency far exceeding that of the air cooling unit and the water cooling unit. Meanwhile, through the process optimization design, the fan part of the fin coil 3 is opened to pre-cool the high-temperature refrigerant during the refrigeration operation, so that the temperature of the refrigerant entering the evaporative condenser 4 can be reduced, the scaling of the heat exchange coil of the evaporative condenser is effectively avoided, the condensation temperature of a unit can be further reduced, and the energy conservation is realized. When heating, the heat of outdoor air is absorbed by the evaporative cooling coil and the fin coil together, so that the device has high heating energy efficiency and reliability, and is efficient and energy-saving. Meanwhile, the hydraulic module is arranged, and the water pipe and the power cable can be put into use only by being connected when in use, the engineering period is short, a refrigeration machine room is not required to be additionally arranged, the land occupation is small, and the space is saved; and the operation energy efficiency of the system can be effectively improved, and the operation cost is obviously reduced.

While embodiments of the present application have been illustrated and described above, it will be appreciated that the above embodiments are exemplary and are not to be construed as limiting the present application. Without departing from the spirit and scope of this application, there are also various changes and modifications that fall within the scope of the claimed application.

Claims

1. The utility model provides a take evaporative condensation heat pump set of water conservancy module, the unit is including connecting gradually compressor (1), cross valve (2), fin coil (3), evaporative condenser (4), reservoir (5), drier-filter (6), throttling arrangement (7), air conditioner water side heat exchanger (8), vapour and liquid separator (9) in the refrigeration cycle return circuit, its characterized in that: a high-pressure outlet of the compressor (1) is connected with a connector d of a four-way valve (2), a connector e of the four-way valve (2) is connected with the fin coil (3), a connector s of the four-way valve (2) is connected with an inlet of a gas-liquid separator (9), and a connector c of the four-way valve (2) is connected with an air-conditioning water side heat exchanger (8); the liquid side header interface (31) of the fin coil (3) is connected with the gas side interface of the evaporative condenser (4) through a first refrigerant channel (15), a first stop valve (16) is arranged in the first refrigerant channel (15), and the liquid side distribution head (32) of the fin coil (3) is communicated with the gas side interface of the evaporative condenser (4) through a second refrigerant channel (17); the air-conditioning water side heat exchanger (8) is directly connected with an inlet of the liquid reservoir (5) through a first bypass (21), and an outlet of the throttling device (7) is directly connected with the evaporative condenser (4) through a second bypass (22); the air-conditioning water side heat exchanger (8) is connected with a hydraulic module unit (10) comprising an outflow pipeline and a return pipeline of the secondary refrigerant, and the hydraulic module unit (10) and other components of the unit are arranged on an integral frame.

2. The evaporative condensation heat pump unit with the hydraulic module as claimed in claim 1, wherein: a filtering device (101) for filtering and removing impurities is arranged at the downstream of an inlet of the secondary refrigerant return pipeline, the secondary refrigerant enters the air-conditioning water side heat exchanger (8) through a water pump (102) after being filtered, a water supplementing device (103) is arranged between the inlet of the return pipeline and the filtering device (101), and an expansion tank (104) is arranged between the filtering device (101) and the water pump (102).

3. The evaporative condensation heat pump unit with the hydraulic module as claimed in claim 2, wherein: and a check valve (105) is arranged in the secondary refrigerant outflow pipeline.

4. The evaporative condensation heat pump unit with the hydraulic module as claimed in claim 1, wherein: a first one-way valve (11) is arranged in a pipeline for communicating a liquid side interface of the evaporative condenser (4) with the liquid storage device (5), and the first one-way valve (11) controls a high-pressure liquid refrigerant condensed by the evaporative condenser (4) to flow to the liquid storage device (5); and a second one-way valve (12) is arranged in a pipeline communicated with the air-conditioning water side heat exchanger (8) through the throttling device (7), and the second one-way valve (12) controls the throttling device (7) to throttle low-temperature low-pressure gas-liquid mixed refrigerant to flow to the air-conditioning water side heat exchanger (8).

5. The evaporative condensation heat pump unit with the hydraulic module as claimed in claim 4, wherein: a first bypass (21) is arranged on a pipeline between an outlet of the first check valve (11) and the liquid storage device (5), the other end of the first bypass (21) is connected with a pipeline between an outlet of the second check valve (12) and the air-conditioning water side heat exchanger (8), a fourth check valve (14) is arranged in the first bypass (21), and the fourth check valve (14) controls the refrigerant condensed into high-pressure liquid by the air-conditioning water side heat exchanger (8) to flow to the liquid storage device (5); a second bypass (22) is arranged on a pipeline between the throttling device (7) and the second one-way valve (12), the other end of the second bypass (22) is communicated with a liquid side interface of the evaporative condenser (4), a third one-way valve (13) is arranged in the second bypass (22), and the third one-way valve (13) controls the throttling device (7) to throttle low-temperature low-pressure gas-liquid mixed refrigerant to flow to the evaporative condenser (4).

6. The evaporative condensation heat pump unit with the hydraulic module as claimed in claim 5, characterized in that: the first stop valve (16), the first one-way valve (11), the second one-way valve (12), the third one-way valve (13) and the fourth one-way valve (14) are in an electric form.

7. The evaporative condensation heat pump unit with the hydraulic module as claimed in claim 6, characterized in that: the first stop valve (16) is an electric ball valve, an electromagnetic valve or an electronic expansion valve; the first one-way valve (11), the second one-way valve (12), the third one-way valve (13) and the fourth one-way valve (14) are electric ball valves.

8. The evaporative condensation heat pump unit with the hydraulic module as claimed in claim 2, wherein: the water pump (102) is a single pump or a water pump group formed by connecting a plurality of water pumps in parallel.

9. The evaporative condensation heat pump unit with the hydraulic module as claimed in claim 8, wherein: the water pump (102) is controlled in a fixed frequency mode or a variable frequency mode.

10. The evaporative condensation heat pump unit with the hydraulic module as claimed in claim 8, wherein: the water supplementing device (103) is an automatic water supplementing valve or a manual water supplementing valve.