CN216953597U - Integrated evaporative cooling direct expansion unit - Google Patents
Integrated evaporative cooling direct expansion unit Download PDFInfo
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- CN216953597U CN216953597U CN202220231276.0U CN202220231276U CN216953597U CN 216953597 U CN216953597 U CN 216953597U CN 202220231276 U CN202220231276 U CN 202220231276U CN 216953597 U CN216953597 U CN 216953597U
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Abstract
The utility model discloses an integrated evaporative cooling direct-expansion unit, which relates to the field of refrigeration equipment and comprises an evaporative condenser, a circulating water pump, a water distribution device, a water tank, a liquid storage device, a compressor, an oil separator, a gas-liquid separator, an evaporator, a control system and a plurality of pipelines. The utility model integrates and arranges the compression refrigeration device, the indoor air conveying and adjusting device, the indoor air treatment device and the water circulation device, and has compact structure and convenient installation; an evaporative cooling mode is adopted, so that the energy efficiency of the unit is improved, and the operation energy consumption is reduced; the control circuits of all the components are integrated in one control system, and one-key full-automatic control can be realized. The utility model can effectively solve the problems of large occupied area, complicated pipe distribution engineering, matching difference of parts of internal and external machines, complex control system and high installation and operation cost of the current same type of units.
Description
Technical Field
The utility model relates to the field of refrigeration equipment, in particular to an integrated evaporative cooling direct expansion unit.
Background
The direct expansion air conditioning unit adopts the direct heat exchange of refrigerant and air, conveys cold/hot air for indoor environment, can be provided with a multifunctional air conditioning device with filtering, purifying, heating, humidifying and the like, and is widely applied to various scenes such as houses, schools, markets, museums, workshops, hospitals and the like. Currently mainstream direct-expansion air conditioning units can be classified into an air-cooled type and a water-cooled type. The air-cooled direct-expansion air conditioning unit adopts outdoor air as a cold/heat source, has the advantages of compact structure, small floor area, no need of additional cold/heat sources and the like, but has lower heat exchange coefficient at the condensation side, higher energy consumption and easy influence of outdoor environment temperature; the water-cooling type direct-expansion air conditioning unit adopts water as a cold source, has the advantages of high efficiency, energy conservation, stable operation and the like, but depends on a water system with complicated configuration, and comprises parts such as a cooling tower, a water pump and the like, so that the installation is complicated, the initial investment is large, and the problems of part matching difference and the like exist at the same time.
Under the modern era background of low-carbon development, the attention of new products/technologies is paid to how to reduce the energy consumption of an air conditioning unit and also considering factors such as investment, occupied land, operation and maintenance and the like. The direct-expansion air conditioning unit adopting the evaporative cooling technology is based on the principle that dry air absorbs moisture, evaporates and absorbs heat, an evaporative condenser of the direct-expansion air conditioning unit exchanges heat with a refrigerant in a pipe by using air and water, and the refrigerant can be cooled to the dew point temperature of the air theoretically; compared with a water-cooled direct-expansion air conditioning unit, the air conditioner does not need complex cooling tower use, water path design and the like.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects in the prior art, and provides an integrated evaporative cooling direct expansion unit, which integrates and arranges a compression refrigeration device, an indoor side air conveying and adjusting device, an indoor side air treatment device and a water circulation device, fully exerts the advantage of obvious evaporative cooling energy-saving effect, has the advantages of compact structure, convenience in installation, one-key full-automatic control and the like, and can effectively solve the problems of large floor area, complicated pipe distribution engineering, different matching of parts of an internal machine and an external machine, complex control system and high installation and operation cost of the current units of the same type.
The purpose of the utility model is achieved by the following technical scheme: the integrated evaporative cooling direct-expansion unit comprises an evaporative condenser, a circulating water pump, a water distribution device, a water tank, a liquid storage device, a compressor, an oil separator, a gas-liquid separator, an evaporator, a control system and a plurality of pipelines;
the water outlet of the water distribution device is arranged above the evaporative condenser and is used for spraying cooling water, and the water tank is arranged below the evaporative condenser and is used for collecting the cooling water; the bottom of the water tank is connected to the water distribution device through a circulating water pump to form a water circulating system;
an exhaust port of the evaporator is connected to an air inlet of the compressor through a gas-liquid separator and used for exhausting low-temperature low-pressure refrigerant gas; the compressor is used for compressing the low-temperature low-pressure gaseous refrigerant into a high-temperature high-pressure gaseous refrigerant, and the high-temperature high-pressure gaseous refrigerant is discharged into the air inlet of the evaporative condenser through the oil separator; the evaporative condenser is used for cooling a high-temperature high-pressure gaseous refrigerant into high-pressure medium-temperature refrigerant liquid after heat exchange of the water circulation system, and conveying the high-pressure high-temperature gaseous refrigerant to a liquid inlet of the liquid storage device through a pipeline; a liquid outlet of the liquid accumulator discharges the refrigerant into an air inlet of the evaporator through a throttling device, and the throttling device is used for throttling high-pressure medium-temperature refrigerant liquid into low-temperature low-pressure gas-liquid two-phase refrigerant steam; the low-temperature low-pressure gas-liquid two-phase refrigerant steam is converted into low-temperature low-pressure refrigerant gas after exchanging heat with air through the evaporator, so that a refrigerant circulating system is formed;
and the control system is respectively and electrically connected with the circulating water pump, the compressor and the throttling device.
The water circulation system is arranged on one side of the evaporative cooling part, and the refrigerant circulation systems are arranged on one side of the air treatment part except for the evaporative condenser.
As a further technical scheme, a through hole is formed in the middle plate, and a connecting pipeline of the through hole oil supply separator and the evaporative condenser and a connecting pipeline of the evaporative condenser and the liquid storage device penetrate through the through hole.
As a further technical scheme, the air treatment part is provided with a fresh air inlet and an indoor air supply outlet, and the fresh air inlet and the indoor air supply outlet are separated by a partition plate; the evaporative cooling part is provided with an outdoor first inlet, an outdoor second inlet and an outdoor air outlet.
As a further technical scheme, the air treatment part is also provided with an air conveying and adjusting device and an air treatment device, and the air treatment device comprises a first air filter, a second air filter, a heater and a humidifier; the first air filter is arranged close to the fresh air inlet, and a return air inlet is also arranged between the first air filter and the evaporator; the second air filter is arranged close to the indoor air supply outlet, and the heater and the humidifier are electrically connected and controlled by the control system and are fixed on one side of the partition board facing the indoor air supply outlet.
As a further technical scheme, the air conveying and adjusting device comprises an indoor fan and an air valve, wherein the indoor fan is arranged close to the second air filter and is electrically connected and controlled by a control system; the air valves are arranged at the fresh air inlet and the indoor air supply outlet and are used for adjusting the air inlet and outlet volume.
As a further technical scheme, a filler is arranged above the water tank, and the evaporative condenser is positioned at the upper part of the filler; the evaporative condenser is arranged close to the outdoor first inlet, and the filler is arranged close to the outdoor second inlet; water collectors are arranged between the evaporative condenser and the filler and the outdoor air outlet, and an outdoor fan is arranged at the outdoor air outlet.
As a further technical scheme, the water tank is further connected with a water supplementing device and a water discharging pipeline, the water supplementing device is a water supplementing opening controlled by a floating ball valve, when the liquid level of the water tank is reduced to a set value, the floating ball valve is opened to supplement water to the water tank, and the water discharging pipeline is used for discharging water in the water tank.
As a further technical scheme, a descaling instrument is arranged on a pipeline for connecting the circulating water pump and the water distribution device, and the descaling instrument is electrically connected and controlled by a control system; the water distribution device is a spray type water distributor and comprises a plurality of uniformly distributed spray ports for uniformly spraying water on the heat exchange surface of the evaporative condenser.
As a further technical scheme, the throttling device comprises a drying filter and an expansion valve, one end of the drying filter is connected with a liquid outlet of the liquid storage device, the other end of the drying filter is connected with the expansion valve, the other end of the expansion valve is connected with a gas inlet of the evaporator, and the expansion valve is electrically connected and controlled by the control system.
As a further technical solution, the oil separator is used for separating the compressor lubricating oil in the high-temperature and high-pressure gaseous refrigerant, so that the compressor lubricating oil flows back to the compressor along a pipeline.
The utility model has the beneficial effects that:
1. compact structure, beautiful appearance and small floor area;
2. an evaporative cooling mode is adopted, so that the energy efficiency of the unit is improved, and the operation energy consumption is reduced;
3. the compression refrigeration device, the indoor air conveying and adjusting device, the indoor air treatment device and the water circulation device are integrated into a whole, so that multiple functions can be selected, and various requirements of air treatment can be met;
4. the control circuits of all the components are integrated in one control system, and one-key full-automatic control can be realized.
Drawings
Fig. 1 is a front view of the structure of the present invention.
Fig. 2 is a right side view of the structure of the present invention.
Fig. 3 is a schematic view of the connection structure of the present invention.
Description of reference numerals: 1. an evaporative condenser; 2. an outdoor fan; 3. a water collector; 4. a filler; 5. a water circulating pump; 6. a scale remover; 7. a water distribution device; 8. a water tank; 9. a water replenishing device; 10. a drain line; 11. a reservoir; 12. drying the filter; 13. a compressor; 14. an oil separator; 15. a gas-liquid separator; 16. an evaporator; 17. an expansion valve; 18. an indoor fan; 19. a first air filter; 20. a second air filter; 21. a humidifier; 22. a heater; 23. an air valve; 24. a control system; 25. a unit outer shell; 26. a middle plate; 27. a partition plate; 101. an air treatment unit; 101-1 and a fresh air inlet; 101-2, an air return inlet; 101-3, an indoor air supply outlet; 102. an evaporative cooling section; 102-1, an outdoor first inlet; 102-2, an outdoor second inlet; 102-3 and an outdoor air outlet.
Detailed Description
The utility model will be described in detail below with reference to the following drawings:
example (b): as shown in fig. 1 to 3, the integrated evaporative cooling direct expansion unit includes an evaporative condenser 1, a circulating water pump, a water distribution device 7, a water tank 8, a liquid reservoir 11, a compressor 13, an oil separator 14, a gas-liquid separator 15, an evaporator 16, a control system 24, and a plurality of pipelines. A water outlet of the water distribution device 7 is arranged above the evaporative condenser 1 and used for spraying cooling water, and a water tank 8 is arranged below the evaporative condenser 1 and used for collecting the cooling water; the bottom of the water tank 8 is connected to the water distribution device 7 through the circulating water pump 5 to form a water circulation system. An exhaust port of the evaporator 16 is connected to an intake port of the compressor 13 through a gas-liquid separator 15 for discharging a low-temperature low-pressure state refrigerant gas; the compressor compresses a low-temperature and low-pressure gaseous refrigerant into a high-temperature and high-pressure gaseous refrigerant, and discharges the gaseous refrigerant into the air inlet of the evaporative condenser 1 through the oil separator 14. After heat exchange of the water circulation system, the evaporative condenser 1 cools the high-temperature high-pressure gaseous refrigerant into high-pressure medium-temperature refrigerant liquid, and the high-pressure medium-temperature refrigerant liquid is conveyed to the liquid inlet of the liquid reservoir 11 through a pipeline. A liquid outlet of the liquid accumulator 11 discharges the refrigerant into an air inlet of the evaporator 16 through a throttling device, and the throttling device is used for throttling high-pressure medium-temperature refrigerant liquid into low-temperature low-pressure gas-liquid two-phase refrigerant steam; the low-temperature low-pressure gas-liquid two-phase refrigerant vapor is converted into low-temperature low-pressure refrigerant gas after exchanging heat with air through the evaporator 16, so as to form a refrigerant circulating system. The control system 24 is respectively and electrically connected with the circulating water pump 5, the compressor 13 and the throttling device.
Further, as shown in fig. 1, the unit further includes a unit outer casing 25, the inside of the unit outer casing 25 is divided into an air processing portion 101 and an evaporation cooling portion 102 by an intermediate plate 26, the water circulation system is disposed on one side of the evaporation cooling portion 102, and the refrigerant circulation system is disposed on one side of the air processing portion 101 except the evaporation type condenser 1. The intermediate plate 26 is provided with pipe-through holes through which the connection pipe of the oil separator 14 and the evaporative condenser 1 and the connection pipe of the evaporative condenser 1 and the liquid reservoir 11 pass. The oil separator 14 is configured to separate compressor lubricant from the high-temperature high-pressure gaseous refrigerant, so that the compressor lubricant flows back to the compressor 13 along a pipeline.
Furthermore, the air processing part 101 is provided with a fresh air inlet 101-1 (lower part on the left side in fig. 1) and an indoor air supply outlet 101-3 (top part on the left side in fig. 1), and the fresh air inlet 101-1 and the indoor air supply outlet 101-3 are separated by a partition plate 27. The evaporative cooling unit 102 has an outdoor first inlet 102-1 (top right side in fig. 1), an outdoor second inlet 102-2 (bottom right side in fig. 1), and an outdoor outlet 102-3 (top right side in fig. 1). The air processing unit 101 is further provided with an air delivery and conditioning device and an air processing device, and the air processing device includes a first air filter 19, a second air filter 20, a heater 22 and a humidifier 21; the first air filter 19 is arranged close to the fresh air inlet 101-1, and a return air inlet 101-2 is also arranged between the first air filter 19 and the evaporator 16; the second air filter 20 is disposed adjacent to the indoor blowing port 101-3, and both the heater 22 and the humidifier 21 are electrically controlled by the control system 24 and fixed to the side of the partition 27 facing the indoor blowing port 101-3. The air delivery regulating device comprises an indoor fan 18 and an air valve 23, wherein the indoor fan 18 is arranged close to the second air filter 20 and is electrically controlled by a control system 24; the air valve 23 is arranged at the fresh air inlet 101-1 and the indoor air supply outlet 101-3 and is used for adjusting the air supply and air discharge.
Preferably, a filler 4 is arranged above the water tank 8, and the evaporative condenser 1 is positioned above the filler 4; the evaporative condenser 1 is arranged close to the outdoor first inlet 102-1, and the filler 4 is arranged close to the outdoor second inlet 102-2; a water collector 3 is arranged between the evaporative condenser 1 and the packing 4 and the outdoor air outlet 102-3, and an outdoor fan 2 is arranged at the outdoor air outlet 102-3. The water tank 8 is also connected with a water supplementing device 9 and a drainage pipeline 10, the water supplementing device 9 is a water supplementing opening controlled by a floating ball valve, when the liquid level of the water tank 8 is reduced to a set value, the floating ball valve is opened, the water supplementing of the water tank 8 is realized, and the drainage pipeline 10 is used for draining water in the water tank 8. A scale remover 6 is arranged on a pipeline connecting the circulating water pump 5 and the water distribution device 7, and the scale remover 6 is electrically connected and controlled by a control system 24; the water distribution device 7 is a spray-type water distributor, and comprises a plurality of uniformly distributed spray ports for uniformly spraying water on the heat exchange surface of the evaporative condenser 1. The throttling device comprises a dry filter 12 and an expansion valve 17, one end of the dry filter 12 is connected with a liquid outlet of the liquid storage device 11, the other end of the dry filter 12 is connected with the expansion valve 17, the other end of the expansion valve 17 is connected with an air inlet of the evaporator 16, and the expansion valve 17 is electrically connected and controlled by a control system 24.
The working process of the utility model is as follows: as shown in fig. 3, the present invention includes a water circulation system and a refrigerant circulation system.
The refrigerant cycle process is as follows: the low-temperature and low-pressure refrigerant gas from the evaporator 16 flows through the gas-liquid separator 15 and then enters the compressor 13, is compressed into high-temperature and high-pressure refrigerant gas, flows through the oil separator 14, and then the compressor lubricating oil in the refrigerant returns to the compressor; the high-temperature and high-pressure refrigerant gas enters the evaporative condenser 1, exchanges heat with water from the water distribution device 7 and outdoor air from the outdoor first inlet 102-1 sucked by the outdoor fan 2, and is cooled into high-pressure and medium-temperature refrigerant liquid; and then to the accumulator 11, the accumulator 11 serving to balance the effective charge in the refrigerant line. High-pressure medium-temperature refrigerant liquid from the liquid accumulator 11 flows through the drying filter 12, is dried and filtered, and then enters the expansion valve 17 to generate a throttling effect to form low-temperature low-pressure gas-liquid two-phase refrigerant steam; then the mixed air enters the evaporator 16 to exchange heat with indoor and outdoor mixed air from a fresh air inlet 101-1 and a return air inlet 101-2 sucked by an indoor fan 18, the mixed air is cooled and dehumidified, and gas-liquid two-phase refrigerant steam in the pipe absorbs heat and evaporates to form low-temperature and low-pressure refrigerant gas which returns to the gas-liquid separator 15.
The cooling water circulation process is as follows: cooling water from the water distribution device 7 passes through the evaporative condenser 1, exchanges heat with high-temperature and high-pressure refrigerant gas in the pipe and outdoor air from the outdoor first inlet 102-1, then the temperature is increased, the quality is reduced, then the cooling water enters the filler 4 under the action of gravity, exchanges heat with the outdoor air from the outdoor second inlet 102-1, the temperature is reduced to form cooling water, and the cooling water falls into the water tank 8; the cooling water pumped by the circulating water pump 5 in the water tank 8 flows through the descaler 6 to remove impurities in the water, and then enters the water distribution device 7 again to form circulation. In the process, the quality of cooling water is reduced, water is supplemented by a water supplementing device 9 arranged on the water tank 8, the water supplementing device 9 is a water supplementing opening controlled by a floating ball valve, and when the liquid level in the water tank 8 is reduced to a set value, the floating ball valve is opened to supplement water; when the water tank 8 is full or the ice-proof in winter needs to be drained, the water is drained through the drainage pipeline 10.
The air flow process is described with reference to fig. 1, in which the arrows in fig. 1 indicate the direction of air flow.
The air flow process of the air processing portion 101 is as follows: the outdoor high-temperature and high-humidity air from the fresh air inlet 101-1 is filtered by the first air filter 19 and then mixed with the higher greenhouse air from the return air inlet 101-2 to form air to be treated with certain temperature and humidity. The air to be treated flows through the evaporator 16, the heater 22 and the humidifier 21 in sequence, is cooled, dehumidified, humidified and heated to form treated air, is sucked by the indoor fan 18, is sent through the second air filter 20, is filtered, and is sent to the indoor environment through the indoor air supply outlet 101-3.
The air flow process of the evaporative cooling section 102 is as follows: the outdoor air from the outdoor first inlet 102-1 flows through the evaporative condenser 1, and forms a heat and mass transfer process with the water from the water distribution device 7 and the heat exchange tubes of the evaporative condenser 1, during which the air absorbs moisture, the moisture content is increased, and the temperature is increased. The water carried by the removed air is then recovered by the water collector 3 and discharged to the outdoor environment by the outdoor fan 2. The outdoor air from the outdoor second inlet 102-2 flows through the filler 4 and the water from the evaporative condenser 1 and the surface of the filler 4 to generate a heat and mass transfer process, the air absorbs moisture, the moisture content is increased, and the wet bulb temperature is increased; the water then passes through the water collector 3 to recover the water, which is removed from the air, and is discharged to the outdoor environment by the outdoor fan 2.
It should be understood that equivalent alterations and modifications of the technical solution and the inventive concept of the present invention by those skilled in the art should fall within the scope of the appended claims.
Claims (10)
1. The utility model provides an integral type evaporative cooling unit that directly expands which characterized in that: comprises an evaporative condenser (1), a circulating water pump, a water distribution device (7), a water tank (8), a liquid storage device (11), a compressor (13), an oil separator (14), a gas-liquid separator (15), an evaporator (16), a control system (24) and a plurality of pipelines;
the water outlet of the water distribution device (7) is arranged above the evaporative condenser (1) and is used for spraying cooling water, and a water tank (8) is arranged below the evaporative condenser (1) and is used for collecting the cooling water; the bottom of the water tank (8) is connected to the water distribution device (7) through a circulating water pump (5) to form a water circulation system;
the exhaust port of the evaporator (16) is connected to the intake port of the compressor (13) through a gas-liquid separator (15) for discharging a low-temperature low-pressure state refrigerant gas; the compressor is used for compressing the low-temperature low-pressure gaseous refrigerant into the high-temperature high-pressure gaseous refrigerant, and the high-temperature high-pressure gaseous refrigerant is discharged into an air inlet of the evaporative condenser (1) through the oil separator (14); the evaporative condenser (1) is used for cooling a high-temperature high-pressure gaseous refrigerant into high-pressure medium-temperature refrigerant liquid after heat exchange of a water circulation system, and conveying the high-pressure high-temperature gaseous refrigerant liquid to a liquid inlet of the liquid storage device (11) through a pipeline; a liquid outlet of the liquid accumulator (11) discharges the refrigerant into a gas inlet of the evaporator (16) through a throttling device, and the throttling device is used for throttling high-pressure medium-temperature refrigerant liquid into low-temperature low-pressure gas-liquid two-phase refrigerant steam; the low-temperature low-pressure gas-liquid two-phase refrigerant vapor is converted into low-temperature low-pressure refrigerant gas after exchanging heat with air through an evaporator (16), so that a refrigerant circulating system is formed;
and the control system (24) is respectively and electrically connected with and controls the circulating water pump (5), the compressor (13) and the throttling device.
2. The integrated evaporative cooling direct expansion unit of claim 1, wherein: the air conditioner further comprises a unit outer shell (25), the inside of the unit outer shell (25) is divided into an air processing part (101) and an evaporation cooling part (102) by a middle plate (26), the water circulation system is arranged on one side of the evaporation cooling part (102), and the refrigerant circulation system is arranged on one side of the air processing part (101) except the evaporation condenser (1).
3. The integrated evaporative cooling direct expansion unit of claim 2, wherein: and the middle plate (26) is provided with a through hole, and the through hole is used for allowing a connecting pipeline between the oil separator (14) and the evaporative condenser (1) and a connecting pipeline between the evaporative condenser (1) and the liquid reservoir (11) to pass through.
4. The integrated evaporative cooling direct expansion unit of claim 2 or 3, characterized in that: the air treatment part (101) is provided with a fresh air inlet (101-1) and an indoor air supply outlet (101-3), and the fresh air inlet (101-1) and the indoor air supply outlet (101-3) are separated by a partition plate (27); the evaporative cooling part (102) is provided with an outdoor first inlet (102-1), an outdoor second inlet (102-2) and an outdoor air outlet (102-3).
5. The integrated evaporative cooling direct expansion unit of claim 4, wherein: the air treatment part (101) is also provided with an air conveying and adjusting device and an air treatment device, and the air treatment device comprises a first air filter (19), a second air filter (20), a heater (22) and a humidifier (21); the first air filter (19) is arranged close to the fresh air inlet (101-1), and a return air inlet (101-2) is also arranged between the first air filter (19) and the evaporator (16); the second air filter (20) is arranged close to the indoor air supply outlet (101-3), and the heater (22) and the humidifier (21) are electrically connected and controlled by a control system (24) and are fixed on one side of the partition plate (27) facing the indoor air supply outlet (101-3).
6. The integrated evaporative cooling direct expansion unit of claim 5, wherein: the air delivery regulating device comprises an indoor fan (18) and an air valve (23), wherein the indoor fan (18) is arranged close to the second air filter (20) and is electrically connected and controlled by a control system (24); the air valve (23) is arranged at the fresh air inlet (101-1) and the indoor air supply outlet (101-3) and is used for adjusting the air supply and air discharge.
7. The integrated evaporative cooling direct expansion unit of claim 4, wherein: a filler (4) is arranged above the water tank (8), and the evaporative condenser (1) is positioned at the upper part of the filler (4); -an evaporative condenser (1) is arranged close to said outdoor first inlet (102-1), and a filler (4) is arranged close to said outdoor second inlet (102-2); a water collector (3) is arranged between the evaporative condenser (1) and the packing (4) and the outdoor air outlet (102-3), and an outdoor fan (2) is arranged at the outdoor air outlet (102-3).
8. The integrated evaporative cooling direct expansion unit of claim 1, wherein: the water tank (8) is further connected with a water supplementing device (9) and a water discharging pipeline (10), the water supplementing device (9) is used for supplementing water into the water tank (8), and the water discharging pipeline (10) is used for discharging water in the water tank (8).
9. The integrated evaporative cooling direct expansion unit of claim 1, wherein: a scale remover (6) is arranged on a pipeline connecting the circulating water pump (5) and the water distribution device (7), and the scale remover (6) is electrically connected and controlled by a control system (24); the water distribution device (7) is a spray type water distributor and comprises a plurality of spray ports which are uniformly distributed and used for uniformly spraying water on the heat exchange surface of the evaporative condenser (1).
10. The integrated evaporative cooling direct expansion unit of claim 1, wherein: the throttling device comprises a drying filter (12) and an expansion valve (17), one end of the drying filter (12) is connected with a liquid outlet of the liquid storage device (11), the other end of the drying filter (12) is connected with the expansion valve (17), the other end of the expansion valve (17) is connected with a gas inlet of the evaporator (16), and the expansion valve (17) is electrically connected and controlled by a control system (24).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220231276.0U CN216953597U (en) | 2022-01-25 | 2022-01-25 | Integrated evaporative cooling direct expansion unit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220231276.0U CN216953597U (en) | 2022-01-25 | 2022-01-25 | Integrated evaporative cooling direct expansion unit |
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| CN216953597U true CN216953597U (en) | 2022-07-12 |
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| CN202220231276.0U Active CN216953597U (en) | 2022-01-25 | 2022-01-25 | Integrated evaporative cooling direct expansion unit |
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