Refrigerating device and refrigerating system thereof
By using a defrost water tank and spray elements in combination with a heat exchanger in the evaporative condenser to detect and adjust the medium temperature, the problem of pressure fluctuation in the evaporative condenser is solved, and stable operation and efficient condensation of the refrigeration system are achieved.
Patent Information
- Application Number
- CN202422721182.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-08
- Publication Date
- 2025-09-30
- Estimated Expiration
- 2034-11-08
AI Technical Summary
The pressure of the evaporative condenser is easily affected by the external temperature, resulting in excessive power consumption of the refrigeration system at high temperatures or insufficient liquid supply at low temperatures. The existing cooling method cannot maintain the appropriate temperature range, affecting the normal operation of the refrigeration system.
The defrost water tank and spray parts are used to control the temperature of the spray medium of the evaporative condenser. The medium temperature is detected in combination with the heat exchanger and control components. The temperature is increased by the heat exchanger to ensure that the spray medium temperature is in the appropriate range. The drive pump is used to adjust the flow of the medium.
Effectively maintain the evaporative condenser in the appropriate temperature range, maintain a reasonable condensing pressure, and improve the condensing effect and operating efficiency of the refrigeration system.
Smart Images
Figure CN223399952U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of refrigeration systems, in particular to a refrigeration device and a refrigeration system thereof. Background Art
[0002] The evaporative condenser is an indispensable component in the refrigeration system. The evaporative condenser is connected to the compressor. The high-temperature and high-pressure medium flowing out of the compressor enters the evaporative condenser and exchanges heat with the outside to condense and cool down.
[0003] The internal pressure of an evaporative condenser is easily affected by the external temperature. In the high summer, the pressure of the evaporative condenser tends to be too high, while in the low winter, the pressure of the evaporative condenser tends to be too low. During the operation of the refrigeration system, excessively high pressure in the evaporative condenser will cause excessive power consumption of the compressor, while too low pressure in the evaporative condenser will result in too small a pressure differential across the thermal expansion valve in the refrigeration system, causing insufficient liquid supply. Therefore, an external temperature of the evaporative condenser that is too high or too low is not conducive to the operation of the refrigeration system.
[0004] Some refrigeration system devices cool down the evaporative condenser by air cooling or water cooling. Although this method can reduce the temperature of the evaporative condenser, it cannot maintain the evaporative condenser within a suitable temperature range. When the temperature of the evaporative condenser is too low, it will still affect the normal operation of the refrigeration system. Utility Model Content
[0005] In order to solve the above technical problems, the present invention provides a refrigeration device.
[0006] A refrigeration device includes a compressor, an evaporative condenser, a defrost water tank, a heat exchanger, a first switch valve, and a second switch valve. The compressor is connected to a condenser pipe of the evaporative condenser via a first pipeline. The evaporative condenser includes a spray component. The defrost water tank is connected to the spray component via a second pipeline. The spray component can spray water toward the condenser pipe. The inlet of the heat exchanger is connected to the first pipeline via a first interface. The outlet of the heat exchanger is connected to the first pipeline via a second interface. The first switch valve is installed in the first pipeline and is located between the first interface and the second interface. The second switch valve is installed in the second pipeline. The heat exchanger and the defrost water tank are connected to form a heat exchange circuit. The refrigeration device further includes a control component. The control component can detect the temperature of a medium in the second pipeline and control the opening and closing of the first switch valve and / or the second switch valve according to the temperature of the medium.
[0007] With this arrangement, high-temperature, high-pressure medium from the compressor can enter the evaporative condenser through the first pipeline, while water from the defrost water tank, used to cool the evaporative condenser, flows through the second pipeline to the spray element, where it is sprayed toward the evaporative condenser to cool the evaporative condenser. The heat exchanger and the defrost water tank are connected via a heat exchange circuit, allowing the water in the defrost water tank to flow into the heat exchanger. Because the heat exchanger is also connected to the first pipeline, the high-temperature, high-pressure medium flowing from the compressor in the first pipeline can exchange heat with the water in the defrost water tank in the heat exchange circuit in the heat exchanger, raising the temperature of the water in the defrost water tank. A first on-off valve is installed between the first and second ports. When the first on-off valve is open, water can flow directly from the compressor along the first pipeline to the evaporative condenser without passing through the heat exchanger. When the first on-off valve is closed, water can flow only from the first port to the heat exchanger, where it exchanges heat with the water in the defrost water tank. The control component can detect the temperature of the medium in the second pipeline, so when it detects that the temperature in the second pipeline is lower than the set value, it can control the first switch valve to close, allowing the water stored in the defrost water tank to exchange heat with the high-temperature and high-pressure medium flowing out of the compressor in the heat exchanger, thereby increasing the water temperature in the second pipeline, so that the temperature of the water sprayed from the spray part is maintained in an appropriate range, that is, ensuring that the pressure of the evaporative condenser is at an appropriate value.
[0008] In one embodiment, the refrigeration device further includes a first drive pump and a second drive pump, wherein the first drive pump is installed on the second pipeline and can drive the medium in the defrost water tank to flow toward the spray element, and the second drive pump is installed in the heat exchange circuit and can drive the medium in the defrost water tank to flow toward the heat exchanger.
[0009] In one embodiment, the control component includes a controller and a pressure sensor electrically connected to the controller, the pressure sensor is installed in the first pipeline, and the controller is configured to drive the first drive pump to operate and open the second switch valve in response to whether the pressure value detected by the pressure sensor reaches a first preset pressure value.
[0010] In one embodiment, the control component also includes a first temperature sensor, which is installed in the second pipeline. The controller is configured to close the first drive pump, close the first switch valve, and open the second drive pump in response to whether the temperature value detected by the first temperature sensor is lower than a first preset temperature value.
[0011] In one embodiment, the control component further includes a second temperature sensor, which is installed in the heat exchange circuit. The controller is configured to open the first drive pump, open the first switch valve, and close the second drive pump in response to whether the temperature value detected by the second temperature sensor is higher than a second preset temperature value.
[0012] In one embodiment, the evaporative condenser further includes a shell having a chamber constructed therein, the condenser being installed in the chamber, and a water outlet being provided on the shell, the water outlet being connected to the chamber; the heat exchange circuit includes a first path, one end of the first path being connected to the outlet of the heat exchanger, the other end of the first path being connected to the defrost water tank, and the water outlet being connected to the defrost water tank through a water outlet pipe.
[0013] In one embodiment, the evaporative condenser further includes a fan, an air outlet is provided on the shell, and the fan is located in the chamber and is arranged close to the air outlet.
[0014] In one embodiment, a first filter element is provided on the second pipeline; and / or a second filter element is provided on the heat exchange circuit.
[0015] In one embodiment, at least one shut-off valve is provided between the first interface and the second interface.
[0016] The utility model also provides a refrigeration system, comprising the refrigeration device as described above.
[0017] Compared to existing technologies, this new system utilizes a defrost water tank and a spray element to control the temperature of the evaporative condenser by spraying a medium onto the evaporative condenser, thereby maintaining the condensation pressure within an appropriate range and improving condensation efficiency. Furthermore, a control component monitors the temperature of the medium flowing out of the defrost water tank, and an additional heat exchanger heats any medium that is too cold, ensuring that the temperature of the medium sprayed onto the evaporative condenser remains constant. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is a schematic diagram of one embodiment of the refrigeration device provided by the utility model.
[0019] The symbols in the figure mean the following:
[0020] 100. Refrigeration device; 10. Evaporative condenser; 11. Shell; 12. Chamber; 13. Condenser; 14. Water outlet; 15. Fan; 16. Air outlet; 20. Defrosting water tank; 30. Spray element; 40. Heat exchanger; 41. First interface; 42. Second interface; 50. First pipeline; 51. First switching valve; 52. Stop valve; 60. Second pipeline; 61. Second switching valve; 62. First drive pump; 63. First filter element; 64. One-way valve; 70. Heat exchange circuit; 71. Second drive pump; 72. Second filter element; 73. First path; 74. Second path; 80. Control component; 81. Controller; 82. Pressure sensor; 83. First temperature sensor; 84. Second temperature sensor. DETAILED DESCRIPTION
[0021] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.
[0022] It should be noted that when a mechanism is referred to as being "fixed to" or "set on" another mechanism, it may be directly on the other mechanism or there may be a central mechanism. When a mechanism is considered to be "connected to" another mechanism, it may be directly connected to the other mechanism or there may be a central mechanism at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the specification of this application are for illustrative purposes only and do not represent the only implementation method.
[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.
[0024] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it can mean that the first feature is directly in contact with the second feature, or the first feature and the second feature are indirectly in contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it can mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is higher in level than the second feature. When a first feature is "below," "below," or "below" a second feature, it can mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is lower in level than the second feature.
[0025] Unless otherwise defined, all technical and scientific terms used in the specification of this application have the same meaning as commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used in the specification of this application includes any and all combinations of one or more of the relevant listed items.
[0026] The present invention provides a refrigeration device 100 that sprays water on an evaporative condenser 10 through a defrosting water tank 20 and has the ability to self-regulate water temperature, thereby enabling the evaporative condenser 10 to always maintain a suitable temperature range, thereby maintaining a reasonable condensation pressure.
[0027] See Figure 1 The refrigeration device 100 includes a compressor, an evaporative condenser 10, a defrost water tank 20, a heat exchanger 40, a first switch valve 51 and a second switch valve 61. The compressor is connected to the condenser pipe 13 of the evaporative condenser 10 through a first pipe 50. The evaporative condenser 10 includes a spray component 30. The defrost water tank 20 is connected to the spray component 30 through a second pipe 60. The spray component 30 can spray water toward the condenser pipe 13. The inlet of the heat exchanger 40 is connected to the first pipe 50 through a first interface 41. The outlet is connected to the first pipeline 50 via the second interface 42. A first on-off valve 51 is installed in the first pipeline 50 and is located between the first interface 41 and the second interface 42. A second on-off valve 61 is installed in the second pipeline 60. The heat exchanger 40 and the defrost water tank 20 are connected to form a heat exchange circuit 70. The refrigeration device 100 also includes a control component 80. The control component 80 can detect the temperature of the medium in the second pipeline 60 and control the opening and closing of the first on-off valve 51 and the second on-off valve 61 based on the medium temperature. The control component 80 can also control the start / stop of the heat exchange circuit 70.
[0028] In this way, the high-temperature, high-pressure medium in the compressor can enter the evaporative condenser 10 through the first pipeline 50. Water in the defrost water tank 20, used to cool the evaporative condenser 10, flows through the second pipeline 60 to the spray element 30 and is sprayed toward the evaporative condenser 10 by the spray element 30, thereby cooling the evaporative condenser 10. The heat exchanger 40 is connected to the defrost water tank 20 via the heat exchange loop 70, allowing the water stored in the defrost water tank 20 to flow into the heat exchanger 40. Furthermore, because the heat exchanger 40 is also connected to the first pipeline 50, the high-temperature, high-pressure medium flowing out of the compressor in the first pipeline 50 can exchange heat in the heat exchanger 40 with the water stored in the defrost water tank 20 in the heat exchange loop 70, thereby increasing the temperature of the water stored in the defrost water tank 20. The first on-off valve 51 is installed between the first port 41 and the second port 42. When the first on-off valve 51 is open, water can flow directly from the compressor to the evaporative condenser 10 along the first pipeline 50 without passing through the heat exchanger 40. When the first on-off valve 51 is closed, water can flow only from the first port 41 to the heat exchanger 40, where it exchanges heat with the water in the defrost water tank 20. The control assembly 80 is capable of detecting the temperature of the medium in the second pipeline 60. When it detects that the temperature in the second pipeline 60 is lower than a set value, it controls the first on-off valve 51 to close, allowing the water in the defrost water tank 20 to exchange heat with the high-temperature, high-pressure medium flowing from the compressor in the heat exchanger 40. This raises the water temperature in the second pipeline 60, thereby maintaining the temperature of the water sprayed from the spray element 30 within a suitable range, thereby ensuring that the pressure in the evaporative condenser 10 remains within a suitable range.
[0029] It should be explained that the heat exchanger 40 comprises a tube side and a shell side. The medium in the tube side of the heat exchanger exchanges heat with the medium in the shell side cavity. In this embodiment, the shell side is connected to the first pipeline 50. The refrigerant in the first pipeline 50 enters the shell side through the first port 41 and the inlet of the heat exchanger 40, and flows back into the first pipeline 50 through the outlet of the heat exchanger 40 and the second port 42. The tube side is connected to the defrost water tank 20. The water in the defrost water tank 20 enters the tube side of the heat exchanger 40 and exchanges heat with the refrigerant in the shell side. Therefore, after the heat exchanger 40 is connected to the defrost water tank 20, the inlet and outlet of the tube side of the heat exchanger 40 and the inlet and outlet of the defrost water tank 20 form a heat exchange circuit.
[0030] The refrigeration device 100 also includes a first drive pump 62 and a second drive pump 71. The first drive pump 62 is installed on the second pipeline 60 and is capable of driving the medium in the defrost water tank 20 to flow toward the spray element 30. The second drive pump 71 is installed in the heat exchange circuit 70 and is configured to begin operation in response to a trigger from the control component 80, thereby driving the medium in the defrost water tank 20 to flow toward the heat exchanger 40. In this way, the first drive pump 62 can drive the medium in the defrost water tank 20 to flow toward the spray element 30 at a certain flow rate to ensure that the medium is sprayed out of the spray element 30. The second drive pump 71 drives the medium to circulate in the heat exchange circuit 70.
[0031] Typically, to prevent the medium in the defrost water tank 20 from flowing uncontrollably toward the spray element 30, the defrost water tank 20 is typically installed on the bottom side of the refrigeration device 100. Therefore, the first drive pump 62 and the second drive pump 71 facilitate the transfer of the medium from the defrost water tank 20. It should be noted that the bottom side mentioned above refers to the bottom side in the direction of gravity.
[0032] Specifically, the control assembly 80 includes a controller 81 and a pressure sensor 82 electrically connected to the controller 81. The pressure sensor 82 is installed in the first pipeline 50. The controller 81 is configured to activate the first drive pump 62 and open the second on-off valve 61 in response to whether the pressure detected by the pressure sensor 82 reaches a first preset pressure value. Thus, since the pressure sensor 82 is installed in the first pipeline 50, located between the compressor and the evaporative condenser 10, it can detect the condensing pressure. When the pressure detected by the pressure sensor 82 exceeds the first preset pressure value, it indicates that the condensing pressure is too high and the temperature of the evaporative condenser 10 is too high. In this case, the second on-off valve 61 needs to be opened, allowing the water stored in the defrost water tank 20 to flow to the spray element 30 as the first drive pump 62 operates. The spray from the spray element 30 cools the evaporative condenser 10 to control the condensing pressure.
[0033] Specifically, the first preset pressure is set to 1.55 MPA. When the pressure detected by the pressure sensor 82 is higher than 1.55 MPA, it means that the pressure is too high, and the defrosting water tank 20 starts to operate.
[0034] Preferably, two second on-off valves 61 are provided on the second pipeline 60, and the two second on-off valves 61 can ensure the airtightness of the second pipeline 60. A one-way valve 64 is also provided on the second pipeline 60 to prevent the medium from flowing back.
[0035] The control assembly 80 also includes a first temperature sensor 83 mounted on the second pipeline 60. The controller 81 is configured to shut down the first drive pump 62, close the first on / off valve 51, and start the second drive pump 71 in response to whether the temperature detected by the first temperature sensor 83 is lower than a first preset temperature. Thus, the first temperature sensor 83 is used to detect the temperature of the medium in the second pipeline 60. When the temperature of the medium in the second pipeline 60 (i.e., the medium flowing out of the defrost water tank 20) is lower than the first preset temperature, it indicates that the temperature is too low and the water in the defrost water tank 20 needs to be heated before it can continue to spray the evaporative condenser 10. Therefore, the controller 81 closes the first switch valve 51, forcing the high-temperature and high-pressure medium flowing out of the compressor into the heat exchanger 40, and at the same time closes the first drive pump 62, so that the medium in the defrost water tank 20 will not continue to flow to the spray part 30, and the second drive pump 71 drives the medium in the defrost water tank 20 to flow to the heat exchanger 40, and exchanges heat and heats up in the heat exchanger 40, and then returns to the defrost water tank 20 through the heat exchange circuit 70, thereby completing the heating action.
[0036] The high-temperature and high-pressure medium flowing out of the compressor exchanges heat for the first time in the heat exchanger 40 and then flows to the evaporative condenser 10 after the heat exchange in the heat exchanger 40, so the heat exchange efficiency is higher.
[0037] In this embodiment, the first preset temperature is set to 23° C. In other embodiments, it can also be adjusted to 24° C. or 25° C. according to working conditions.
[0038] The control assembly 80 also includes a second temperature sensor 84 mounted in the heat exchange circuit 70. The controller 81 is configured to activate the first drive pump 62, open the first on / off valve 51, and deactivate the second drive pump 71 in response to whether the temperature detected by the second temperature sensor 84 exceeds a second preset temperature. Thus, in contrast to the above, when the second temperature sensor 84 detects that the temperature in the heat exchange circuit 70 has reached the preset temperature, it indicates that the medium in the defrost water tank 20 has reached the set temperature and can continue operation. Therefore, the first on / off valve 51 is opened, and the high-temperature medium flowing out of the compressor flows directly through the first on / off valve 51 and into the evaporative condenser 10, bypassing the heat exchanger 40. Simultaneously, the second drive pump 71 is deactivated, and the medium in the defrost water tank 20 no longer flows to the heat exchanger 40.
[0039] The evaporative condenser 10 also includes a shell 11, which has a chamber 12 inside. The condenser 13 is installed in the chamber 12. A water outlet 14 is opened on the shell 11, and the water outlet 14 is connected to the chamber 12. The heat exchange circuit 70 includes a first path 73, one end of the first path 73 is connected to the outlet of the heat exchanger 40, and the other end of the first path 73 is connected to the defrost water tank 20. The water outlet 14 is connected to the defrost water tank 20 through the water outlet pipe. Therefore, the water in the evaporative condenser 10 that has undergone heat exchange with the condenser 13 and has been heated will flow from the water outlet 14 to the first path 73, and flow from the first path 73 to the defrost water tank 20 for reuse.
[0040] The heat exchange circuit 70 further includes a second path 74 , one end of which is connected to the defrost water tank 20 , and the other end of which is connected to the inlet of the heat exchanger 40 . The second driving pump 71 and the second temperature sensor 84 are both installed on the second path 74 .
[0041] The evaporative condenser 10 further includes a fan 15. The housing 11 is provided with an air outlet 16. The fan 15 is located in the chamber 12 and is disposed near the air outlet 16. The fan 15 can accelerate the air flow in the evaporative condenser 10 to improve the condensation effect of the evaporative condenser 10.
[0042] A first filter 63 is provided on the second pipeline 60 and / or a second filter 72 is provided on the heat exchange circuit 70. The first filter 63 and the second filter 72 can filter impurities in the pipeline, thereby improving the durability of the refrigeration device 100.
[0043] At least one stop valve 52 is provided between the first interface 41 and the second interface 42 . The stop valve 52 can control the flow of the medium and achieve a throttling effect.
[0044] The present invention also provides a refrigeration system, comprising the refrigeration device 100 as described above.
[0045] Compared to the prior art, the present invention utilizes a defrost water tank 20 and a spray element 30 to spray a medium onto the evaporative condenser 10 to achieve temperature control, thereby maintaining the condensation pressure within an appropriate range and improving condensation efficiency. Furthermore, a control assembly 80 monitors the temperature of the medium flowing out of the defrost water tank 20, and an additional heat exchanger 40 heats any medium that is too cold, ensuring that the temperature of the medium sprayed onto the evaporative condenser 10 remains constant.
[0046] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0047] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.
Claims
1. A refrigeration device, characterized in that: The invention comprises a compressor, an evaporative condenser (10), a defrosting water tank (20), a heat exchanger (40), a first switch valve (51) and a second switch valve (61), wherein the compressor is connected to a condensing pipe (13) of the evaporative condenser (10) through a first pipeline (50), the evaporative condenser (10) comprises a spraying element (30), the defrosting water tank (20) is connected to the spraying element (30) through a second pipeline (60), and the spraying element (30) can spray water toward the condensing pipe (13), and the heat exchanger The inlet of the heat exchanger (40) is in communication with the first pipeline (50) via a first interface (41), the outlet of the heat exchanger (40) is in communication with the first pipeline (50) via a second interface (42), the first switch valve (51) is installed on the first pipeline (50) and is located between the first interface (41) and the second interface (42), the second switch valve (61) is installed on the second pipeline (60), the heat exchanger (40) and the defrosting water tank (20) are in communication and form a heat exchange circuit (70); The refrigeration device further includes a control component (80), which is capable of detecting the temperature of the medium in the second pipeline (60) and controlling the opening and closing of the first switch valve (51) and / or the second switch valve (61) according to the temperature of the medium.
2. The refrigeration device according to claim 1, characterized in that The refrigeration device further comprises a first driving pump (62) and a second driving pump (71), wherein the first driving pump (62) is installed on the second pipeline (60) and is capable of driving the medium in the defrosting water tank (20) to flow toward the spraying element (30), and the second driving pump (71) is installed on the heat exchange circuit (70) and is capable of driving the medium in the defrosting water tank (20) to flow toward the heat exchanger (40).
3. The refrigeration device according to claim 2, characterized in that The control assembly (80) includes a controller (81) and a pressure sensor (82) electrically connected to the controller (81), wherein the pressure sensor (82) is installed on the first pipeline (50), and the controller (81) is configured to drive the first driving pump (62) to operate and open the second switch valve (61) in response to whether the pressure value detected by the pressure sensor (82) reaches a first preset pressure value.
4. The refrigeration device according to claim 3, characterized in that The control assembly (80) further comprises a first temperature sensor (83), wherein the first temperature sensor (83) is installed on the second pipeline (60), and the controller (81) is configured to close the first driving pump (62), close the first switching valve (51), and open the second driving pump (71) in response to whether the temperature value detected by the first temperature sensor (83) is lower than a first preset temperature value.
5. The refrigeration device according to claim 3, characterized in that The control assembly (80) further comprises a second temperature sensor (84), which is mounted on the heat exchange circuit (70). The controller (81) is configured to open the first drive pump (62), open the first switch valve (51), and close the second drive pump (71) in response to whether the temperature value detected by the second temperature sensor (84) is higher than a second preset temperature value.
6. The refrigeration device according to any one of claims 1 to 5, characterized in that: The evaporative condenser (10) further comprises a shell (11), a chamber (12) is constructed in the shell (11), the condensation pipe (13) is installed in the chamber (12), and a water outlet (14) is provided on the shell (11), and the water outlet (14) is communicated with the chamber (12); The heat exchange circuit (70) comprises a first path (73), one end of the first path (73) is connected to the outlet of the heat exchanger (40), the other end of the first path (73) is connected to the defrost water tank (20), and the water outlet (14) is connected to the defrost water tank (20) through a water outlet pipe.
7. The refrigeration device according to claim 6, characterized in that The evaporative condenser (10) further comprises a fan (15); an air outlet (16) is provided on the shell (11); and the fan (15) is located in the chamber (12) and is arranged close to the air outlet (16).
8. The refrigeration device according to claim 1, wherein: The second pipeline (60) is provided with a first filter element (63); and / or, A second filter element (72) is provided on the heat exchange circuit (70).
9. The refrigeration device according to claim 1, characterized in that At least one stop valve (52) is provided between the first interface (41) and the second interface (42).
10. A refrigeration system, characterized in that: The refrigeration device comprises the refrigeration device according to any one of claims 1 to 9.