Jet refrigeration and dehumidification apparatus and cooling system

Abstract

Embodiments of the present application relate to, but not limited to, the field of data center refrigeration air conditioners, and provide a jet refrigeration and dehumidification apparatus (100) and a cooling system. The cooling system comprises: the jet refrigeration and dehumidification apparatus (100); and an indirect evaporative cooling apparatus, configured to cool a communication device, and provided with an outdoor air channel, wherein after being cooled and dehumidified by the jet refrigeration and dehumidification apparatus (100), outdoor air flows into the outdoor air channel of the indirect evaporative cooling apparatus for water evaporation, so as to cool indoor air.

Description

A jet refrigeration dehumidification device and cooling system

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application is based on the Chinese patent application with application number 202410173379.X and application date of February 7, 2024, and claims the priority of the Chinese patent application. The entire content of the Chinese patent application is hereby introduced into this application as a reference. Technical Field

[0003] The embodiments of the present application relate to the field of data center refrigeration and air conditioning, and in particular to a jet refrigeration and dehumidification device and a cooling system. Background Art

[0004] Among related technologies, indirect evaporative cooling, currently used in domestic data centers, can achieve energy savings of 80% to 90% in dry areas, 40% in moderately humid areas, and 20% to 25% in high-temperature and high-humidity areas, compared to conventional mechanical refrigeration. Evaporative cooling is a green and clean dry air energy source, but its energy savings are limited in moderately humid and high-humidity areas due to its inherent constraints on the ambient wet-bulb temperature. Summary of the Invention

[0005] Embodiments of the present application provide a spray refrigeration and dehumidification device and a cooling system.

[0006] In the first aspect, an embodiment of the present application provides a jet refrigeration and dehumidification device, comprising: an ejector, a generator, a first evaporator and a first condenser, wherein the input side of the first condenser is connected to the output port of the ejector, the output side of the first condenser is connected to the first input port of the ejector through the first evaporator, and is connected to the second input port of the ejector through the generator; wherein the first evaporator is configured to cool and dehumidify outdoor air, and the cooled and dehumidified outdoor air flows to the outdoor air channel of the indirect evaporative cooling device to evaporate water.

[0007] In a second aspect, an embodiment of the present application further provides a cooling system, comprising the jet refrigeration and dehumidification device of the first aspect and an indirect evaporative cooling device configured to cool communication equipment, wherein the indirect evaporative cooling device is provided with an outdoor air channel, wherein the outdoor air flows to the outdoor air channel to evaporate water after being cooled and dehumidified by the jet refrigeration and dehumidification device. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] FIG1 is a schematic diagram of a jet refrigeration and dehumidification device provided by one embodiment of the present application;

[0009] FIG2 is a schematic diagram of a cooling system provided by one embodiment of the present application;

[0010] FIG3 is a schematic diagram of a cooling system provided by another embodiment of the present application. DETAILED DESCRIPTION

[0011] In order to make the purpose, technical solutions and advantages of this application more clearly understood, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the embodiments described herein are only used to explain this application and are not intended to limit this application.

[0012] It should be noted that although the device schematics illustrate functional module divisions and the flowcharts illustrate logical sequences, in certain circumstances, the steps shown or described may be performed in a sequence that differs from the module divisions in the device or the sequence in the flowcharts. The terms "first," "second," and so on, in the specification, claims, and drawings, are used to distinguish similar items and are not necessarily used to describe a specific sequence or precedence.

[0013] In the embodiments of the present application, words such as "further," "exemplarily," or "optionally" are used to indicate examples, illustrations, or descriptions and should not be interpreted as being more preferred or advantageous over other embodiments or designs. The use of words such as "further," "exemplarily," or "optionally" is intended to present related concepts in a concrete manner.

[0014] Among related technologies, indirect evaporative cooling, currently used in domestic data centers, can achieve energy savings of 80% to 90% in dry areas, 40% in moderately humid areas, and 20% to 25% in high-temperature and high-humidity areas, compared to conventional mechanical refrigeration. Evaporative cooling is a green and clean dry air energy source, but its energy savings are limited in moderately humid and high-humidity areas due to its inherent constraints on the ambient wet-bulb temperature.

[0015] Based on the above situation, the embodiment of the present application proposes a jet refrigeration dehumidification device and cooling system, which aims to reduce the wet-bulb temperature of the outdoor inlet air, thereby improving the efficiency of indirect evaporative cooling and increasing the energy-saving advantages of indirect evaporative cooling technology in medium and high humidity areas.

[0016] The following further describes various embodiments of the jet refrigeration and dehumidification device and the cooling system of the present application in conjunction with the accompanying drawings.

[0017] As shown in FIG1 , FIG1 is a schematic diagram of a jet refrigeration and dehumidification device provided in one embodiment of the present application.

[0018] In one embodiment, the ejector refrigeration and dehumidification device 100 of the embodiment of the present application includes but is not limited to an ejector 110 , a generator 120 , a first evaporator 130 and a first condenser 140 .

[0019] In an embodiment of the present application, the input side of the first condenser 140 is connected to the output port of the ejector 110, and the output side of the first condenser 140 is connected to the first input port of the ejector 110 through the first evaporator 130, and is connected to the second input port of the ejector 110 through the generator 120, wherein the first evaporator 130 is configured to cool and dehumidify the outdoor air, and the cooled and dehumidified outdoor air flows to the outdoor air channel of the indirect evaporative cooling device to evaporate water.

[0020] In an embodiment of the present application, the generator 120 delivers high-temperature and high-pressure refrigerant to the ejector 110, and serves as the working fluid of the ejector 110. The working fluid is depressurized through the nozzle of the ejector 110 and accelerated in the receiving chamber of the ejector 110 to form a low-pressure area and draw in the low-temperature and low-pressure induced fluid from the first evaporator 130. The working fluid and the induced fluid are mixed in the mixing chamber of the ejector 110 to form a mixed fluid. The mixed fluid enters the first condenser 140 after being decelerated and pressurized through the diffusion chamber. The medium-temperature and medium-pressure mixed fluid enters the first condenser 140 to condense and release heat, and the heat is taken away by the cooling medium.

[0021] The operating temperature of the first evaporator 130 in the embodiment of the present application is lower than the outdoor inlet air dew point temperature in summer.

[0022] The jet refrigeration and dehumidification device 100 of the embodiment of the present application further includes but is not limited to a heat source device 150 and a first circulation pump 160 .

[0023] The output end of the heat source device 150 of the embodiment of the present application is connected to the input end of the first circulation pump 160 through the generator 120 , and the output end of the first circulation pump 160 is connected to the input end of the heat source device 150 .

[0024] The above-mentioned heat source device 150 can be a solar collector, an electric water heater, or a gas water heater. The embodiment of the present application does not specifically limit the type of the heat source device 150.

[0025] When the heat source device 150 of the embodiment of the present application is a solar collector, the solar collector will use solar energy to convert it into thermal energy, and the thermal energy is transported to the generator 120 through the hot water heat carrier medium, thereby obtaining a high-temperature and high-pressure refrigerant, and the high-temperature and high-pressure refrigerant is transported to the ejector 110 as the working fluid of the ejector 110; in addition, the hot water coming out of the generator 120 is transported to the solar collector through the first circulation pump 160, thereby realizing the utilization of thermal energy and the recycling of water through the solar collector, the generator 120 and the first circulation pump 160.

[0026] The jet refrigeration and dehumidification device 100 of the embodiment of the present application further includes but is not limited to a first electronic expansion valve 170 , a liquid storage tank 180 and a second circulation pump 190 .

[0027] In an embodiment of the present application, the input end of the liquid storage tank 180 is connected to the output side of the first condenser 140, the output end of the liquid storage tank 180 is connected to the first evaporator 130 through the first electronic expansion valve 170, and is connected to the generator 120 through the second circulation pump 190.

[0028] In an embodiment of the present application, the refrigerant after condensation and heat release in the first condenser 140 will enter the liquid storage tank 180. First, the refrigerant in the liquid storage tank 180 will enter the first evaporator 130 through the first electronic expansion valve 170, and the outdoor air will be cooled and dehumidified through the first evaporator 130; secondly, the refrigerant in the liquid storage tank 180 will also be transported to the generator 120 through the second circulation pump 190 to complete the cycle.

[0029] Since the evaporation temperature of the refrigerant in the first evaporator 130 is lower than the outdoor inlet air dew point temperature in summer, the water vapor in the air can condense to form water droplets, thereby reducing the temperature and moisture content of the air and achieving the effect of cooling and dehumidification.

[0030] As shown in FIG2 , FIG2 is a schematic diagram of a cooling system provided by an embodiment of the present application.

[0031] In one embodiment, the cooling system of the embodiment of the present application includes but is not limited to a spray refrigeration and dehumidification device 100 and an indirect evaporative cooling device.

[0032] The indirect evaporative cooling device of the embodiment of the present application is configured to cool down the communication equipment. In addition, the indirect evaporative cooling device of the embodiment of the present application is provided with an outdoor air passage.

[0033] In the embodiment of the present application, after the outdoor air is cooled and dehumidified by the spray refrigeration and dehumidification device 100, it flows into the outdoor air channel to evaporate water.

[0034] Since the embodiment of the present application can pre-cool and dehumidify outdoor air with high humidity through the jet refrigeration and dehumidification technology, the wet-bulb temperature of the outdoor air inlet to the indirect evaporative cooling device is reduced, thereby improving the indirect evaporative cooling efficiency and cooling capacity of the indirect evaporative cooling device, thereby improving the applicability of the indirect evaporative cooling device in medium and high humidity areas, and increasing the energy-saving advantages of the indirect evaporative cooling device in medium and high humidity areas.

[0035] The indirect evaporative cooling device of the embodiment of the present application includes but is not limited to the indirect evaporative cooling air conditioning device 210.

[0036] The evaporative cooling end of the indirect evaporative cooling air-conditioning device 210 includes but is not limited to a heat exchange core 211 and a spray assembly, wherein the heat exchange core 211 is located in the outdoor air channel and the indoor air channel, and the spray assembly is configured to spray the heat exchange core 211. The cooled and dehumidified outdoor air evaporates water in the heat exchange core 211 through the outdoor air channel, so as to cool the indoor air in the indoor air channel through the heat exchange core 211.

[0037] The heat exchange core 211 can be made of metal sheets or polymer materials, wherein the metal sheets or polymer sheets are tightly arranged together to form channels for air circulation. In the embodiment of the present application, one portion of the channels of the heat exchange core 211 faces the outside, serving as the outdoor air channel, while another portion faces the inside, serving as the indoor air channel. The embodiment of the present application does not impose any specific restrictions on the materials used to make the heat exchange core 211.

[0038] When the cooled and dehumidified outdoor air flows through the heat exchange core 211 through the outdoor air channel, the water sprayed by the spray assembly on the wet channel of the heat exchange core 211 will gradually evaporate and take away the heat of the indoor air in the dry channel of the heat exchange core 211, thereby reducing the temperature of the indoor air.

[0039] The indirect evaporative cooling air-conditioning device 210 of the embodiment of the present application further includes but is not limited to an air conditioner, and the air conditioner includes but is not limited to a compressor 213 , a second evaporator 214 and a second condenser 215 .

[0040] The second evaporator 214 of the embodiment of the present application is arranged in the indoor air channel, the output port of the second evaporator 214 is connected to the air intake port of the compressor 213, and the exhaust port of the compressor 213 is connected to the input port of the second evaporator 214 through the second condenser 215.

[0041] When the air temperature processed by the evaporative cooling end cannot meet the demand, the air conditioner needs to be turned on. The air coming out of the indoor air channel of the heat exchange core 211 enters the second evaporator 214 and exchanges heat with the low-temperature and low-pressure refrigerant, thereby reducing the temperature of the indoor air. Then, the low-temperature and low-pressure refrigerant carries heat and is compressed by the compressor 213 and enters the second condenser 215, and takes away the heat of the second condenser 215 through the outdoor air.

[0042] The air conditioner of the embodiment of the present application further includes but is not limited to a second electronic expansion valve 216 , wherein one end of the second electronic expansion valve 216 is connected to the second condenser 215 , and the other end is connected to the second evaporator 214 .

[0043] The spray assembly of the embodiment of the present application is also configured to spray the second condenser 215 .

[0044] In an embodiment of the present application, spraying the second condenser 215 through the spray component can reduce the temperature of the second condenser 215, thereby better improving the cooling efficiency of the cooling system; in addition, spraying the second condenser 215 by the spray component can also keep the second condenser 215 clean, prevent the formation of dirt and sediment, and ensure the stability of the cooling system.

[0045] The indirect evaporative cooling device of the embodiment of the present application further includes but is not limited to an air humidifier 220 . The air humidifier 220 is disposed in the indoor air passage and is located at the rear side of the second evaporator 214 .

[0046] The following two scenarios require the use of a humidifier to humidify the indoor supply air. First, when the outdoor temperature is low and a large amount of condensed water accumulates in the indoor dry channel of the heat exchange core 211, the humidifier should be turned on to maintain a roughly constant indoor air humidity level. Second, when the outdoor temperature is high and the compressor is turned on to dehumidify the indoor air at the evaporator, the humidifier should also be turned on to maintain a roughly constant indoor air humidity level.

[0047] The indirect evaporative cooling device of the embodiment of the present application further includes but is not limited to an air filter 230 , an indoor fan 240 and an outdoor fan 250 .

[0048] The air filter 230 and the indoor fan 240 of the embodiment of the present application are arranged in the indoor air passage, and the outdoor fan 250 is arranged in the outdoor air passage.

[0049] In this embodiment of the present application, indoor air can be circulated in the indoor passageway via indoor fan 240. During this process, air filter 230 can filter the incoming air, removing pollutants such as dust, pollen, and viruses, thereby ensuring clean and healthy indoor air. In addition, outdoor fan 250 is disposed in the outdoor air passageway and exhausts heat from heat exchange core 211 and second condenser 215 to the outside through exhaust. Therefore, indoor air quality can be continuously improved while also ensuring stable indoor temperature and humidity.

[0050] The spray assembly of the embodiment of the present application includes but is not limited to a spray water pump 212 and a water distributor 217 , and the spray water pump 212 is connected to the water distributor 217 .

[0051] The spray water pump 212 of the embodiment of the present application is configured to transport water to the water distributor 217. Since the water distributor 217 has multiple nozzles or water outlets, the water can be evenly sprayed on the heat exchange core 211, thereby reducing the temperature of the heat exchange core 211.

[0052] When the heat source device 150 of the embodiment of the present application is a solar thermal collector, the solar thermal collector will use solar energy to convert into heat energy, and the heat energy is transported to the generator 120 through the hot water heat carrier medium, thereby obtaining a high-temperature and high-pressure refrigerant, and the high-temperature and high-pressure refrigerant is transported to the ejector 110 as the working fluid of the ejector 110; in addition, the hot water from the generator 120 is transported to the solar thermal collector through the first circulation pump 160, thereby achieving the goal of the solar thermal collector, the generator 120 and the first circulation pump 160. Utilization of heat energy and recycling of water; then, the working fluid is depressurized through the nozzle of the ejector 110 and accelerated in the receiving chamber of the ejector 110 to form a low-pressure area and suck the low-temperature and low-pressure ejected fluid from the first evaporator 130. The working fluid and the ejected fluid are mixed in the mixing chamber of the ejector 110 to form a mixed fluid. The mixed fluid is decelerated and pressurized in the diffusion chamber and then enters the first condenser 140. The medium-temperature and medium-pressure mixed fluid enters the first condenser 140 to condense and release heat; then enters the liquid storage tank 180. First, the liquid storage tank 18 0 will enter the first evaporator 130 through the first electronic expansion valve 170, and the outdoor air will be cooled and dehumidified by the first evaporator 130. Secondly, the refrigerant in the liquid storage tank 180 will be transported to the generator 120 through the second circulation pump 190 to complete the cycle. In addition, when the outdoor air cooled and dehumidified by the first evaporator 130 flows through the outdoor air channel and passes through the heat exchange core 211, the water sprayed by the spray assembly on the wet channel of the heat exchange core 211 will gradually evaporate and take away the heat of the indoor air in the dry channel of the heat exchange core 211, thereby reducing the temperature of the indoor air. In addition, when the air temperature treated by the evaporative cooling end cannot meet the demand, the air conditioner needs to be turned on, and the air coming out of the indoor air channel of the heat exchange core 211 enters the second evaporator 214 to exchange heat with the low-temperature and low-pressure refrigerant, thereby reducing the temperature of the indoor air. Then, the low-temperature and low-pressure refrigerant carries the heat and is compressed by the compressor 213 and enters the second condenser 215, and takes away the heat of the second condenser 215 through the outdoor air.

[0053] As shown in FIG3 , FIG3 is a schematic diagram of a cooling system provided in another embodiment of the present application.

[0054] In one embodiment, the cooling system of the embodiment of the present application includes but is not limited to a spray refrigeration and dehumidification device 100 and an indirect evaporative cooling device.

[0055] In one embodiment, the indirect evaporative cooling device of the embodiment of the present application includes but is not limited to a liquid-cooled cold plate device 260, wherein the evaporative cooling end of the liquid-cooled cold plate device 260 includes but is not limited to a closed coil 261 and a spray assembly, and the spray assembly is configured to spray the closed coil 261.

[0056] In the embodiment of the present application, the cooled and dehumidified outdoor air evaporates water in the closed coil 261 .

[0057] When the cooled and dehumidified outdoor air flows through the closed coil 261, the water sprayed on the closed coil 261 by the spray assembly will gradually evaporate and take away the heat carried by the cooling water inside the closed coil 261, thereby reducing the temperature of the cooling water.

[0058] The liquid-cooled cold plate device 260 of the embodiment of the present application also includes but is not limited to a cooling distribution unit 262 and a cold plate liquid cooling server 263, wherein a first refrigerant circuit is formed between the closed coil 261 and the cooling distribution unit 262, and a second refrigerant circuit is formed between the cooling distribution unit 262 and the cold plate liquid cooling server 263, and the first refrigerant circuit and the second refrigerant circuit exchange heat in the cooling distribution unit 262.

[0059] In the embodiment of the present application, the low-temperature refrigerant in the closed coil 261 flows to the cooling distribution unit 262 through the first refrigerant circuit, and the high-temperature refrigerant in the cold plate liquid cooling server 263 flows to the cooling distribution unit 262 through the second refrigerant circuit, so that the refrigerants from different circuits exchange heat in the cooling distribution unit 262, thereby reducing the temperature of the cold plate liquid cooling server 263.

[0060] The liquid-cooled cold plate device 260 in the embodiment of the present application further includes but is not limited to a third circulation pump 264 and a fourth circulation pump 265 .

[0061] In the embodiment of the present application, the third circulation pump 264 is disposed in the first refrigerant circuit, and the fourth circulation pump 265 is disposed in the second refrigerant circuit.

[0062] The third circulation pump 264 of the embodiment of the present application is configured to control the flow of refrigerant in the first refrigerant circuit, and the fourth circulation pump 265 is configured to control the flow of refrigerant in the second refrigerant circuit.

[0063] The spray assembly of the embodiment of the present application includes but is not limited to a spray water pump 212 and a water distributor 217 , and the spray water pump 212 is connected to the water distributor 217 .

[0064] The spray water pump 212 of the embodiment of the present application is configured to transport water to the water distributor 217. Since the water distributor 217 has multiple nozzles or water outlets, the water can be evenly sprayed on the closed coil 261, thereby reducing the temperature of the closed coil 261.

[0065] When the heat source device 150 of the embodiment of the present application is a solar thermal collector, the solar thermal collector will use solar energy to convert into thermal energy, and the thermal energy is transported to the generator 120 through the hot water heat carrier medium, thereby obtaining a high-temperature and high-pressure refrigerant, and the high-temperature and high-pressure refrigerant is transported to the ejector 110 as the working fluid of the ejector 110; in addition, the hot water from the generator 120 is transported to the solar thermal collector through the first circulation pump 160, thereby realizing the utilization of thermal energy and the recycling of water through the solar thermal collector, the generator 120 and the first circulation pump 160; then, the working fluid is depressurized through the nozzle of the ejector 110 and accelerated to form a low-pressure area in the receiving chamber of the ejector 110 and sucks the low-temperature and low-pressure ejected fluid from the first evaporator 130, and the working fluid and the ejected fluid are mixed in the mixing chamber of the ejector 110 to form a mixed fluid, and the mixed fluid is decelerated and pressurized after passing through the diffusion chamber and enters the first condenser 140, and the medium-temperature and medium-pressure mixed fluid enters the first condenser 140 to condense and release heat; then Then it enters the liquid storage tank 180. First, the refrigerant in the liquid storage tank 180 will enter the first evaporator 130 through the first electronic expansion valve 170, and the outdoor air will be cooled and dehumidified by the first evaporator 130. Secondly, the refrigerant in the liquid storage tank 180 will be transported to the generator 120 through the second circulation pump 190 to complete the cycle. In addition, the outdoor air cooled and dehumidified by the first evaporator 130 flows through the closed coil 261. The water sprayed on the closed coil 261 by the spray assembly will gradually evaporate and take away the heat carried by the cooling water inside the closed coil 261, thereby reducing the temperature of the cooling water. In addition, the low-temperature refrigerant in the closed coil 261 flows to the cooling distribution unit 262 through the first refrigerant circuit, and the high-temperature refrigerant in the cold plate liquid cooling server 263 flows to the cooling distribution unit 262 through the second refrigerant circuit, so that the refrigerants from different circuits exchange heat in the cooling distribution unit 262, thereby reducing the temperature of the cold plate liquid cooling server 263.

[0066] The liquid-cooled cold plate device 260 of the embodiment of the present application further includes an outdoor fan 250 and a filler 266. The outdoor fan 250 is disposed in the outdoor air passage, and heat from the closed coil 261 is discharged outdoors through the outdoor fan 250. Furthermore, the filler 266 allows water to be more evenly sprayed onto each portion of the closed coil 261, ensuring that each portion is adequately covered by the water flow, thereby improving heat exchange efficiency. Furthermore, the filler 266 allows water to be more evenly sprayed onto each portion of the closed coil 261, ensuring that each portion is adequately covered by the water flow, thereby improving heat exchange efficiency.

[0067] Since the first evaporator 130 of the embodiment of the present application can cool and dehumidify the outdoor air, the wet-bulb temperature of the outdoor air inlet of the indirect evaporative cooling device can be reduced, thereby improving the indirect evaporative cooling efficiency and cooling capacity of the indirect evaporative cooling device, thereby improving the applicability of the indirect evaporative cooling device in medium and high humidity areas, and increasing the energy-saving advantages of the indirect evaporative cooling device in medium and high humidity areas.

[0068] According to the jet refrigeration and dehumidification device and cooling system provided in the embodiments of the present application, since the embodiments of the present application can pre-cool and dehumidify the outdoor air with high humidity through the jet refrigeration and dehumidification technology, the wet-bulb temperature of the outdoor air inlet of the indirect evaporative cooling device is reduced, thereby improving the indirect evaporative cooling efficiency and cooling capacity of the indirect evaporative cooling device, thereby improving the applicability of the indirect evaporative cooling device in medium and high humidity areas, and increasing the energy-saving advantages of the indirect evaporative cooling device in medium and high humidity areas.

[0069] The above description of some embodiments of the present application with reference to the accompanying drawings does not limit the scope of the present application. Any modifications, equivalent substitutions, and improvements made by those skilled in the art without departing from the scope and essence of the present application shall be within the scope of the present application.

[0070] In addition, this patent only describes the system schematic diagram of the equipment components. The specific equipment and air duct structure layout do not affect the uniqueness of this application. The quantitative correspondence between the jet refrigeration and dehumidification devices and the indirect evaporative cooling devices can be one-to-one or one-to-many.

Claims

1. A jet refrigeration and dehumidification device, comprising: An ejector, a generator, a first evaporator, and a first condenser, wherein the input side of the first condenser is connected to the output port of the ejector, the output side of the first condenser is connected to the first input port of the ejector through the first evaporator, and is connected to the second input port of the ejector through the generator; The first evaporator is configured to cool and dehumidify outdoor air, and the cooled and dehumidified outdoor air flows to the outdoor air passage of the indirect evaporative cooling device to evaporate water.

2. The spray cooling and dehumidifying device according to claim 1, wherein: The jet refrigeration and dehumidification device also includes a heat source device and a first circulation pump. The output end of the heat source device is connected to the input end of the first circulation pump through the generator, and the output end of the first circulation pump is connected to the input end of the heat source device.

3. The spray cooling and dehumidifying device according to claim 2, wherein: The heat source device includes one of the following: a solar thermal collector, an electric water heater, or a gas water heater.

4. The spray cooling and dehumidifying device according to claim 1, wherein: The jet refrigeration and dehumidification device also includes a first electronic expansion valve, a liquid storage tank and a second circulation pump. The input end of the liquid storage tank is connected to the output side of the first condenser, and the output end of the liquid storage tank is connected to the first evaporator through the first electronic expansion valve, and is connected to the generator through the second circulation pump.

5. A cooling system comprising the jet cooling and dehumidifying device according to any one of claims 1 to 4 and an indirect evaporative cooling device configured to cool down communication equipment, wherein the indirect evaporative cooling device is provided with an outdoor air passage, wherein: After being cooled and dehumidified by the jet refrigeration and dehumidification device, the outdoor air flows into the outdoor air passage to evaporate water.

6. The cooling system according to claim 5, wherein: The indirect evaporative cooling device includes an indirect evaporative cooling air-conditioning device, and the evaporative cooling end of the indirect evaporative cooling air-conditioning device includes a heat exchange core and a spray assembly, the heat exchange core is located in the outdoor air channel and the indoor air channel, and the spray assembly is configured to spray the heat exchange core; wherein, the outdoor air after cooling and dehumidification evaporates water in the heat exchange core through the outdoor air channel, so as to cool the indoor air in the indoor air channel through the heat exchange core.

7. The cooling system according to claim 6, wherein: The indirect evaporative cooling air-conditioning device also includes an air conditioner, which includes a compressor, a second evaporator and a second condenser. The second evaporator is arranged in the indoor air channel, and the output port of the second evaporator is connected to the air intake port of the compressor. The exhaust port of the compressor is connected to the input port of the second evaporator through the second condenser.

8. The cooling system according to claim 7, wherein: The air conditioner further includes a second electronic expansion valve, one end of the second electronic expansion valve is connected to the second condenser, and the other end of the second electronic expansion valve is connected to the second evaporator.

9. The cooling system according to claim 7, wherein: The spray assembly is further configured to spray the second condenser.

10. The cooling system according to claim 7, wherein: The indirect evaporative cooling device further includes an air humidifier, which is disposed in the indoor air passage and located at the rear side of the second evaporator.

11. The cooling system according to claim 6, wherein: The indirect evaporative cooling device further includes an air filter, an indoor fan, and an outdoor fan. The air filter and the indoor fan are arranged in the indoor air passage, and the outdoor fan is arranged in the outdoor air passage.

12. The cooling system according to claim 5, wherein: The indirect evaporative cooling device also includes a liquid-cooled cold plate device, and the evaporative cooling end of the liquid-cooled cold plate device includes a closed coil and a spray assembly, and the spray assembly is configured to spray the closed coil; wherein the cooled and dehumidified outdoor air evaporates water in the closed coil.

13. The cooling system according to claim 12, wherein: The liquid-cooled cold plate device also includes a cooling distribution unit and a cold plate liquid cooling server. A first refrigerant circuit is formed between the closed coil and the cooling distribution unit, and a second refrigerant circuit is formed between the cooling distribution unit and the cold plate liquid cooling server. The first refrigerant circuit and the second refrigerant circuit exchange heat in the cooling distribution unit.

14. The cooling system according to claim 13, wherein: The liquid-cooled cold plate device further includes a third circulating pump and a fourth circulating pump. The third circulating pump is provided in the first refrigerant circuit, and the fourth circulating pump is provided in the second refrigerant circuit.

15. The cooling system according to claim 6, 9 or 12, wherein: The spray assembly includes a spray water pump and a water distributor, and the spray water pump is connected to the water distributor.

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