CN211739530U - Evaporation cycle assembly of double compressors of cockpit - Google Patents
Evaporation cycle assembly of double compressors of cockpit Download PDFInfo
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- CN211739530U CN211739530U CN202020083172.0U CN202020083172U CN211739530U CN 211739530 U CN211739530 U CN 211739530U CN 202020083172 U CN202020083172 U CN 202020083172U CN 211739530 U CN211739530 U CN 211739530U
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- evaporator
- evaporation
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Abstract
The utility model relates to a two compressor evaporation cycle subassemblies in cockpit, the compressor is the parallelly connected electronic scroll compressor who sets up of two, the gaseous state refrigerant of low temperature low pressure gets into two through the compressor suction pipe group in the evaporimeter electronic scroll compressor, two the highly compressed gas of high temperature after the electronic scroll compressor compression get into the condenser through compressor exhaust pipe group, liquid refrigerant goes out the liquid nest of tubes by the condenser and gets into the evaporimeter after the condensation. The device has the characteristics of small volume, high energy efficiency ratio, low noise, long service life and convenience in installation.
Description
Technical Field
The utility model relates to a refrigeration field, concretely relates to two compressor evaporation cycle subassemblies in cockpit.
Background
With the rapid development of the aviation industry in China, the holding quantity of military aircrafts is multiplied, and particularly, the quantity of airborne electronic and electrical equipment such as a radar system, an inertial navigation system, a fire control system and the like arranged on modern advanced aircrafts is increased more and more, so that the demand of helicopter air-conditioning refrigeration devices is continuously increased. In the early stage, because the reliability of an evaporation cycle refrigeration system is poor and the problem that a refrigerant is easy to leak is not well solved, an air cycle refrigeration system is mostly adopted in a helicopter refrigeration system. However, with the defects of poor reliability, refrigerant leakage and the like of the evaporation cycle refrigeration system, and the like, the evaporation cycle refrigeration system has the advantages of high performance coefficient, small compensation loss, no engine cause and the like compared with an air circulation system, so that the evaporation cycle refrigeration system is widely adopted by modern helicopters and has the tendency of replacing the air circulation refrigeration system.
Disclosure of Invention
An object of the utility model is to provide a be fit for the cockpit two compressor evaporation cycle subassemblies that the helicopter used.
In order to achieve the above purpose, the utility model adopts the technical proposal that:
the double-compressor evaporation circulation component for the cockpit comprises a refrigeration loop consisting of a compressor, a condenser, a liquid storage tank, a drying filter, an expansion valve and an evaporator, wherein the compressor is two electric scroll compressors which are arranged in parallel, a low-temperature low-pressure gaseous refrigerant in the evaporator enters the two electric scroll compressors through a compressor suction pipe group, the two high-temperature high-pressure gas compressed by the electric scroll compressors enters the condenser through a compressor exhaust pipe group, and a condensed liquid refrigerant enters the evaporator through a condenser liquid outlet pipe group.
Further, the evaporator comprises an evaporator core body and an evaporation fan, and a power supply of the evaporation fan is connected with a frequency converter.
Further, the condenser comprises a condenser core and a condensing fan.
Still further, the refrigerant is R134 a.
After taking above technical scheme, the beneficial effects of the utility model are that: two 3kw electric scroll compressors are connected in parallel, and a refrigerating system can stably and reliably run under the condition of ensuring the same flow resistance of the two compressors. The method of connecting two 3kw electric scroll compressors in parallel is adopted, a belt transmission mechanism is reduced, the weight is 20kg lighter than that of the original scheme, the rated current is reduced by 23A compared with that of the original scheme, and the method has the characteristics of small volume, high energy efficiency ratio, low noise, long service life and convenience in installation.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: the electric scroll compressor comprises an electric scroll compressor 1, a condenser core body 2, an evaporator core body 3, an electric scroll compressor 4, a condenser liquid outlet pipe group 5, a compressor exhaust pipe group 6, a condensation fan 7, an evaporation fan 8 and a compressor suction pipe group 9.
Detailed Description
The following detailed description of the embodiments of the present invention is made with reference to the accompanying drawings:
as shown in the figure, the cockpit double-compressor evaporation circulation component is formed by compressing a refrigerant by two parallel electric scroll compressors 1 and 4, wherein the refrigerant is R134 a. Compressed high-temperature and high-pressure gas enters a condenser through a compressor exhaust pipe group 6, a safety valve is connected between an electric scroll compressor and the condenser in series, the condenser comprises a condenser core body and a condensation fan 7, condensed liquid refrigerant enters an evaporator through a condenser liquid outlet pipe group 5, the evaporator comprises an evaporator core body 3 and an evaporation fan 8, and a power supply of the evaporation fan 8 is connected with a frequency converter, so that the evaporation fan can realize the air volume of 500m3/h、250m3Adjusting in two gears of/h; and the gaseous refrigerant in the evaporation fan enters the two electric scroll compressors through the compressor suction pipe group 9 to complete the circulation. In the circulation loop, elements such as a liquid storage tank, a drying filter, an expansion valve, a high-pressure switch, a low-pressure switch, a temperature and humidity sensor, a return air temperature sensor, a defrosting temperature sensor and the like are arranged according to the setting of a conventional air conditioning system. The electric scroll compressors 1,4 are fixedly installed by a compressor bracket; the condenser core 2 and the evaporator core 3 adopt a plate heat exchanger or a finned tube heat exchanger.
The working mode of the system is as follows:
1. refrigerating:
1) and (3) a compression process: the electric scroll compressors 1 and 4 suck the low-temperature and low-pressure refrigerant gas from the outlet of the evaporator, compress the refrigerant gas into high-temperature and high-pressure gas, and discharge the gas into the condenser.
2) An exothermic process: after the high-temperature and high-pressure refrigerant gas enters the condenser, a large amount of heat is released, the heat of the refrigerant is discharged to the external environment through the condensing fan, and the refrigerant gas is condensed into liquid along with the reduction of the temperature.
3) And (3) throttling process: the refrigerant liquid with higher temperature and pressure is throttled and depressurized by the expansion valve, the pressure and temperature are sharply reduced, and the refrigerant liquid is discharged out of the expansion valve in a gas-liquid two-phase state.
4) And (3) heat absorption process: the refrigerant in a two-phase state enters the evaporator, the temperature of the refrigerant is lower than the ambient temperature in the cabin, the refrigerant absorbs heat in the air in the cabin through the evaporator, becomes refrigerant vapor in a superheated state, low temperature and low pressure at an outlet, and then enters the compressor.
The process is circularly carried out, and the aim of reducing the temperature of the air in the cabin is fulfilled.
2. Ventilating:
the compressor does not work, and only the evaporation fan 8 works, so that the air in the cabin circularly flows.
Claims (4)
1. The double-compressor evaporation circulation assembly for the cockpit comprises a refrigeration loop consisting of a compressor, a condenser, a liquid storage tank, a drying filter, an expansion valve and an evaporator, and is characterized in that the compressor is two electric scroll compressors which are arranged in parallel, a low-temperature and low-pressure gaseous refrigerant in the evaporator enters the two electric scroll compressors through a compressor suction pipe group, high-temperature and high-pressure gas compressed by the electric scroll compressors enters the condenser through a compressor exhaust pipe group, and a liquid refrigerant after condensation enters the evaporator through a condenser liquid outlet pipe group.
2. The dual-compressor evaporation cycle assembly for the cockpit of claim 1, wherein the evaporator comprises an evaporator core and an evaporation fan, and a frequency converter is connected to a power supply of the evaporation fan.
3. The dual-cabin compressor evaporative cycle assembly of claim 1, wherein the condenser comprises a condenser core and a condensing fan.
4. The dual cabin compressor evaporation cycle assembly of claim 1, wherein the refrigerant is R134 a.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020083172.0U CN211739530U (en) | 2020-01-15 | 2020-01-15 | Evaporation cycle assembly of double compressors of cockpit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020083172.0U CN211739530U (en) | 2020-01-15 | 2020-01-15 | Evaporation cycle assembly of double compressors of cockpit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211739530U true CN211739530U (en) | 2020-10-23 |
Family
ID=72881356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020083172.0U Active CN211739530U (en) | 2020-01-15 | 2020-01-15 | Evaporation cycle assembly of double compressors of cockpit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211739530U (en) |
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2020
- 2020-01-15 CN CN202020083172.0U patent/CN211739530U/en active Active
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