CN215295204U - Low-temperature refrigeration air conditioning device - Google Patents
Low-temperature refrigeration air conditioning device Download PDFInfo
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- CN215295204U CN215295204U CN202121048760.1U CN202121048760U CN215295204U CN 215295204 U CN215295204 U CN 215295204U CN 202121048760 U CN202121048760 U CN 202121048760U CN 215295204 U CN215295204 U CN 215295204U
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Abstract
The utility model discloses a low temperature refrigeration air conditioning equipment, including the refrigerant circulation circuit that compressor, first condenser, first evaporimeter constitute, first condenser sets up in outdoor side and disposes the condensing fan, and first evaporimeter sets up in indoor side and disposes the evaporating fan, still includes the liquid cooling circulation circuit that second condenser, water tank, water pump, flow switch, second evaporimeter constitute, and the second condenser sets up in outdoor side and shares with first condenser condensing fan, second evaporimeter set up in indoor side and shares with the second evaporimeter evaporating fan. The utility model discloses can improve its operating temperature scope, application scope is wide, and when low temperature refrigeration, only open water pump, two fans and realize the air cycle of indoor side and outdoor side, improve energy efficiency.
Description
Technical Field
The utility model relates to an air conditioning equipment field specifically is a low temperature refrigeration air conditioning equipment.
Background
At present, in order to regulate the temperature in a closed indoor environmental system with an internal heat source, such as a program-controlled exchange room, a communication machine station room and the like, a vapor compression type refrigeration system is generally adopted. The system has the advantages that the internal temperature and the heat productivity of the closed system are changed very little when the system works all year round, the external temperature change range of the closed system is very large, and the ratio of the pressure to the high pressure to the low pressure of the refrigerating system is changed greatly when the refrigerating system works all year round. In order to maintain the stable operation of the closed system at low temperature, an electric heating belt is usually wound outside the compressor to assist in starting, and the condensing fan runs at low speed or stops running, but the sensitivity of the throttling device to the pressure ratio is very high, and the reduction of the pressure ratio during low-temperature running can cause the reduction of the refrigerant flow of the refrigerating system, thereby causing the difficulty in oil return of lubricating oil and influencing the reliable running of the refrigerating system. If an air-air heat exchange system is adopted, the whole air conditioner can be realized, but the system which is separated from the indoor and outdoor can not be realized.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to prior art's not enough, designed a simple structure, implement easy, the low temperature resistant performance is good, application scope is wide low temperature refrigeration air conditioning equipment, can be outside the whole or components of a whole that can function independently air conditioning equipment in the lower environment of air temperature.
In order to achieve the above purpose, the utility model discloses the technical scheme who adopts is:
low temperature refrigeration air conditioning equipment, including refrigerant circulation circuit, refrigerant circulation circuit includes compressor, first condenser, first evaporimeter, and wherein first condenser disposes the condensing fan, and first condenser sets up in outdoor side, and first evaporimeter disposes the evaporating fan, and first evaporimeter sets up in indoor side, its characterized in that: still include liquid cooling circulation circuit, liquid cooling circulation circuit includes second condenser, water tank, water pump, flow switch, second evaporimeter, there is the coolant liquid in the water tank, second condenser, water tank, water pump, flow switch, second evaporimeter are the loop connection, and wherein the second condenser sets up in outdoor side and shares with first condenser condensation fan, second evaporimeter set up in indoor side and share with the second evaporimeter evaporation fan.
The low-temperature refrigeration air conditioning device is characterized in that: in the liquid cooling circulation loop, the outlet end of the second condenser is connected with the water inlet of the water tank, the water outlet of the water tank is connected with the water inlet end of the water pump, the water outlet end of the water pump is connected with the inlet end of the second evaporator through the flow switch, and the outlet end of the second evaporator is connected with the inlet end of the second condenser, so that loop connection is formed.
The low-temperature refrigeration air conditioning device is characterized in that: the liquid cooling circulation loop further comprises a filter, and the filter is communicated with and mounted on a pipeline between the flow switch and the second evaporator.
The low-temperature refrigeration air conditioning device is characterized in that: the circulation loop further comprises a first stop valve and a second stop valve, wherein the first stop valve is communicated and installed to a pipeline between the water tank and the water pump, and the second stop valve is communicated and installed to a pipeline between the filter and the second evaporator.
The low-temperature refrigeration air conditioning device is characterized in that: the control unit is further included, and a signal output end of the control unit is connected with control ends of the compressor, the condensing fan, the evaporating fan, the water pump and the flow switch respectively.
The low-temperature refrigeration air conditioning device is characterized in that: the outdoor temperature sensor is arranged on the outdoor side to collect outdoor temperature signals, the second temperature sensor is arranged on the indoor side to collect indoor temperature signals, and the first temperature sensor and the second temperature sensor are respectively connected with the signal input end of the control unit.
The utility model discloses in, when outdoor temperature is lower, can make indoor air cooling through liquid cooling circulation circuit under the condition that does not start refrigerant circulation circuit.
The beneficial effects of the utility model are embodied in:
1. adopt the utility model discloses a low temperature refrigeration air conditioning equipment can improve its operating temperature scope, improves the stability, the reliability and the work high efficiency of system's work.
2. The air conditioning device has wide application range and is suitable for air conditioning devices with integral and split structures.
3. When the refrigeration is carried out at low temperature, the water pump and the two fans are only started to realize the air circulation of the indoor side and the outdoor side, and the energy utilization efficiency is improved.
Drawings
Fig. 1 is a schematic diagram of the structure of the present invention.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
As shown in fig. 1, the present invention includes a refrigerant circulation loop composed of a compressor 1, a first condenser 2, a liquid storage device 3, a first filter 4, an expansion valve 5, a first evaporator 6, and a gas-liquid separator 7, and a liquid cooling circulation loop composed of a second condenser 8, a water tank 9, a first stop valve 10, a water pump 11, a flow switch 12, a second filter 13, a second stop valve 14, and a second evaporator 15.
In the refrigerant circulation loop, the outlet end of a compressor 1 is connected with the inlet end of a first condenser 2, the outlet end of the first condenser 2 is connected with the inlet end of a liquid storage device 3, the outlet end of the liquid storage device 3 is connected with the inlet end of a first filter 4, the outlet end of the first filter 4 is connected with the inlet end of an expansion valve 5, the outlet end of the expansion valve 5 is connected with the inlet end of a first evaporator 6, the outlet end of the first evaporator 6 is connected with the inlet end of a gas-liquid separator 7, and the outlet end of the gas-liquid separator 7 is connected with the inlet end of the compressor 1. In the refrigerant circulation circuit, the first condenser 2 is provided on the outdoor side, the condensing fan 16 is disposed in the first condenser 2, the first evaporator 6 is provided on the indoor side, and the evaporating fan 17 is disposed in the first evaporator 6.
In the liquid cooling circulation circuit, the second condenser 8 is provided with an outdoor side and shares a condensing fan 16 with the first condenser 2, and the second evaporator 15 is provided with an indoor side and shares an evaporating fan 17 with the first evaporator 6. The outlet end of the second condenser 8 is connected with the water inlet of the water tank 9, the water outlet of the water tank 9 is connected with one end of a first stop valve 10, the other end of the first stop valve 10 is connected with the water inlet end of a water pump 11, the water outlet end of the water pump 11 is connected with one end of a flow switch 12, the other end of the flow switch 12 is connected with the inlet end of a second filter 13, the outlet end of the second filter 13 is connected with one end of a second stop valve 14, the other end of the second stop valve 14 is connected with the inlet end of a second evaporator 15, and the outlet end of the second evaporator 15 is connected with the inlet end of the second condenser 8. Outdoor air is driven by a condensing fan 16 to flow through the first condenser 2 and the second condenser 8, and indoor air is driven by an evaporating fan 17 to flow through the first evaporator 6 and the second evaporator 15.
The utility model discloses still include the control unit 18, first temperature sensor 19, second temperature sensor 20, wherein first temperature sensor 19 sets up in the temperature of outdoor detection room external environment, second temperature sensor 20 sets up in the temperature of indoor detection room internal environment, first temperature sensor 19, second temperature sensor 20 are connected with the signal input part of control unit 18 respectively, the signal output part of control unit 18 is connected with compressor 1, water pump 8, flow switch 9, condensation fan 16, the control end of evaporation fan 17 respectively.
The utility model discloses first condenser 2, 8 return air sides of second condenser and first evaporimeter 6, the 15 return air sides of second evaporimeter correspond respectively and are provided with first temperature sensor 19, second temperature sensor 20 for gather outdoor environment, indoor ambient temperature's temperature. When the indoor environment needs to be cooled, the temperature of the outdoor environment needs to be judged to start the refrigerant circulation loop or the liquid cooling circulation loop.
The working principle and the process of the utility model are as follows.
1. When outdoor ambient temperature is higher, start vapour compression refrigeration system and adjust indoor ambient temperature, this system theory of operation is:
refrigerant steam is sucked from the gas-liquid separator 7 by the refrigeration compressor 1, is compressed into high-temperature high-pressure steam, enters the first condenser 2, is cooled by air flowing through the outside of the first condenser 2, is condensed into normal-temperature high-pressure refrigerant liquid, enters the liquid storage device 3, is filtered by the first filter 4 when being discharged from the liquid storage device 3, enters the expansion valve 5 for throttling, then is changed into low-pressure low-temperature refrigerant liquid, enters the first evaporator 6, is heated by air flowing through the first evaporator 6, is changed into low-pressure low-temperature refrigerant steam, enters the gas-liquid separator 7, heat is released from the air flowing through the first evaporator 6, the temperature is reduced, and the indoor environment temperature is reduced.
2. And when the outdoor environment temperature is lower, closing the steam compression type refrigerating system. The liquid cooling heat exchange refrigerating system is started to adjust the indoor environment temperature, and the working principle of the system is as follows:
after the hot coolant enters the second condenser 8, the coolant which is cooled by the air outside the second condenser 8 and becomes low temperature enters the water tank 9, the coolant enters the water pump 11 through the first stop valve 10 when being discharged from the water tank 9, the coolant enters the second filter 13 through the flow switch 12 after being pressurized, the coolant enters the second evaporator 15 after being filtered, the coolant passes through the second stop valve 14, the air flowing through the second evaporator 15 emits heat, the temperature is reduced, and the indoor environment temperature is reduced. The first stop valve 10 and the second stop valve 14 facilitate replacement of the water pump 11, the flow switch 12 and the second filter 13.
3. No matter the refrigeration is in a vapor compression type, the refrigeration is in liquid cooling heat exchange refrigeration, the condensing fan 16 drives outdoor air to flow through the first condenser 2 and the second condenser 8, and the evaporating fan 17 drives indoor air to flow through the first evaporator 6 and the second evaporator 15.
The embodiments of the present invention are only descriptions of the preferred embodiments of the present invention, not right the present invention is designed and limited, without departing from the design concept of the present invention, the technical personnel in the field should fall into the protection scope of the present invention for various modifications and improvements made by the technical solution of the present invention, and the technical contents of the present invention are all recorded in the claims.
Claims (6)
1. Low temperature refrigeration air conditioning equipment, including refrigerant circulation circuit, refrigerant circulation circuit includes compressor, first condenser, first evaporimeter, and wherein first condenser disposes the condensing fan, and first condenser sets up in outdoor side, and first evaporimeter disposes the evaporating fan, and first evaporimeter sets up in indoor side, its characterized in that: still include liquid cooling circulation circuit, liquid cooling circulation circuit includes second condenser, water tank, water pump, flow switch, second evaporimeter, there is the coolant liquid in the water tank, second condenser, water tank, water pump, flow switch, second evaporimeter are the loop connection, and wherein the second condenser sets up in outdoor side and shares with first condenser condensation fan, second evaporimeter set up in indoor side and share with the second evaporimeter evaporation fan.
2. The cryogenic air conditioning unit of claim 1, wherein: in the liquid cooling circulation loop, the outlet end of the second condenser is connected with the water inlet of the water tank, the water outlet of the water tank is connected with the water inlet end of the water pump, the water outlet end of the water pump is connected with the inlet end of the second evaporator through the flow switch, and the outlet end of the second evaporator is connected with the inlet end of the second condenser, so that loop connection is formed.
3. The cryogenic air conditioning unit of claim 2, wherein: the liquid cooling circulation loop further comprises a filter, and the filter is communicated with and mounted on a pipeline between the flow switch and the second evaporator.
4. The cryogenic air conditioning unit of claim 3, wherein: the circulation loop further comprises a first stop valve and a second stop valve, wherein the first stop valve is communicated and installed to a pipeline between the water tank and the water pump, and the second stop valve is communicated and installed to a pipeline between the filter and the second evaporator.
5. The cryogenic air conditioning unit of claim 1, wherein: the control unit is further included, and a signal output end of the control unit is connected with control ends of the compressor, the condensing fan, the evaporating fan, the water pump and the flow switch respectively.
6. The cryogenic air conditioning unit of claim 5, wherein: the outdoor temperature sensor is arranged on the outdoor side to collect outdoor temperature signals, the second temperature sensor is arranged on the indoor side to collect indoor temperature signals, and the first temperature sensor and the second temperature sensor are respectively connected with the signal input end of the control unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121048760.1U CN215295204U (en) | 2021-05-17 | 2021-05-17 | Low-temperature refrigeration air conditioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121048760.1U CN215295204U (en) | 2021-05-17 | 2021-05-17 | Low-temperature refrigeration air conditioning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215295204U true CN215295204U (en) | 2021-12-24 |
Family
ID=79540766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121048760.1U Active CN215295204U (en) | 2021-05-17 | 2021-05-17 | Low-temperature refrigeration air conditioning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215295204U (en) |
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2021
- 2021-05-17 CN CN202121048760.1U patent/CN215295204U/en active Active
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