CN210980444U - Refrigerating and pressurizing device - Google Patents
Refrigerating and pressurizing device Download PDFInfo
- Publication number
- CN210980444U CN210980444U CN201922169414.8U CN201922169414U CN210980444U CN 210980444 U CN210980444 U CN 210980444U CN 201922169414 U CN201922169414 U CN 201922169414U CN 210980444 U CN210980444 U CN 210980444U
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- China
- Prior art keywords
- liquid
- supercharger
- pipeline
- compressor
- gas
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The utility model provides a refrigeration supercharging device. The exhaust port of the compressor is connected with the condenser through a pipeline, an expansion valve is arranged on a liquid outlet pipe of the condenser, and a liquid outlet of the expansion valve is preliminarily decompressed through the pipeline and is connected with a liquid inlet of a supercharger of the supercharger. The air outlet of the evaporator is connected with the air inlet of the supercharger, and the liquid inlet of the evaporator is connected with the liquid outlet of the supercharger through a pipeline; the supercharger exhaust port is connected with the compressor air inlet through a pipeline. An electromagnetic valve and an electronic expansion valve are arranged between an exhaust pipeline of the compressor and a liquid inlet of the supercharger, the liquid inlet of the supercharger is connected with a gas-liquid mixing motor through an inner pipeline of the supercharger, and a gas-liquid mixing motor outlet is arranged on the gas-liquid mixing motor. The evaporator is connected with the booster compressor through a pipeline, a residual gas inlet and a booster exhaust port are arranged on the exhaust side, and a transmission shaft is connected between the booster compressor and the gas-liquid hybrid motor. The utility model discloses suitable use as refrigeration supercharging device.
Description
Technical Field
The utility model provides a refrigeration supercharging device that refrigeration machinery field used.
Background
At present, an expansion valve is commonly adopted for throttling in a refrigeration system. The high-temperature high-pressure liquid is throttled by an expansion valve to become a low-temperature low-pressure gas-liquid mixture. High-grade potential energy is wasted.
SUMMERY OF THE UTILITY MODEL
In order to improve the refrigeration efficiency of the refrigerator, the utility model provides a refrigeration supercharging device. The device drives the operation of the gas-liquid hybrid motor through the potential energy released by the high-liquid-state refrigerant in the expansion process, and the gas-liquid hybrid motor drives the operation of the booster compressor to increase the return air pressure, so that the refrigeration efficiency is improved, and the technical problem of improving the refrigeration efficiency of the refrigerator is solved.
The utility model provides a scheme that technical problem adopted is:
the exhaust port of the compressor is connected with the condenser through a pipeline, an expansion valve is arranged on a liquid outlet pipe of the condenser, and a liquid outlet of the condenser is connected with a liquid inlet of a supercharger of the supercharger through the pipeline and preliminary pressure reduction of the expansion valve. The air outlet of the evaporator is connected with the air inlet of the supercharger, and the liquid inlet of the evaporator is connected with the liquid outlet of the supercharger through a pipeline; the supercharger exhaust port is connected with the compressor air inlet through a pipeline.
An electromagnetic valve and an electronic expansion valve are arranged between an exhaust pipeline of the compressor and a liquid inlet of the supercharger, the liquid inlet of the supercharger is connected with a gas-liquid mixing motor through an inner pipeline of the supercharger, and a gas-liquid mixing motor outlet is arranged on the gas-liquid mixing motor;
the evaporator is connected with the booster compressor through a pipeline, a residual gas inlet and a booster exhaust port are arranged on the exhaust side of the booster compressor, a transmission shaft is connected between the booster compressor and the gas-liquid hybrid motor, and an outlet pipe of the booster compressor is communicated with a return pipe of the compressor through a pipeline.
The pressure difference between the condenser and the evaporator is utilized, and the air suction pressure of the compressor is improved through the supercharger.
The positive effects are as follows: the utility model discloses because the improvement of return-air pressure, make the refrigeration efficiency of compressor obtain corresponding improvement. The refrigerating unit is suitable for use.
Drawings
FIG. 1 is a connection diagram of the structure of the present invention;
fig. 2 is a schematic diagram of the supercharger of the present invention.
In the figure, 1, a compressor, 2, a condenser, 3, an evaporator, 4, an expansion valve, 5, a supercharger, 6, a booster compressor, 7, a gas-liquid hybrid motor, 8, a transmission shaft, 9, a gas-liquid hybrid motor outlet, 10, a residual gas inlet, 11, a supercharger inlet, 12, a supercharger inlet, 13, a supercharger exhaust port, 14, a supercharger outlet, 15, an electromagnetic valve and 16, an electronic expansion valve.
Detailed Description
The exhaust port of the compressor 1 is connected with the condenser 2 through a pipeline, the liquid outlet pipe of the condenser is provided with an expansion valve 4, and the liquid outlet of the condenser is preliminarily decompressed through the expansion valve through the pipeline and is connected with the liquid inlet 12 of the supercharger 5. The air outlet of the evaporator 3 is connected with the air inlet 11 of the supercharger, and the liquid inlet of the evaporator is connected with the liquid outlet 14 of the supercharger through a pipeline; the supercharger exhaust 13 is connected to the compressor inlet by a line.
An electromagnetic valve 15 and an electronic expansion valve 16 are arranged between an exhaust pipeline of the compressor and a liquid inlet of the supercharger, the liquid inlet of the supercharger is connected with a gas-liquid mixing motor 7 through an inner pipeline of the supercharger, and a gas-liquid mixing motor outlet 9 is arranged on the gas-liquid mixing motor;
the evaporator is connected with a booster compressor 6 through a pipeline, a residual air inlet 10 and a booster exhaust port are arranged on the exhaust side of the booster compressor, a transmission shaft 8 is connected between the booster compressor and the gas-liquid hybrid motor, and an outlet pipe of the booster compressor is communicated with a return pipe of the compressor through a pipeline.
The working process is as follows:
a supercharger is additionally arranged between the expansion valve and the air return port of the evaporator, the air inlet of the compressor and the liquid supply port of the evaporator. The supercharger consists of a gas-liquid hybrid motor transmission shaft and a booster compressor. The supercharger has three functions:
1. the pressure difference between the high pressure liquid and the evaporator is used to drive the gas-liquid motor, and the motor drives the booster compressor to increase the return air pressure of the compressor, and simultaneously, the enthalpy value of the refrigerant is reduced, so that the refrigerating capacity is further increased.
2. The gas-liquid mixture formed by the preliminary pressure reduction of the expansion valve and the pressure reduction of the gas-liquid mixing motor is separated in the supercharger, the gaseous refrigerant directly returns to the return air port of the compressor through the residual air return pipe, and the liquid refrigerant enters the evaporator through the liquid outlet of the supercharger, so that the influence of the gaseous refrigerant directly entering the evaporator on the heat exchange of the evaporator is avoided.
3. When the temperature of the evaporator is too low, the evaporation pressure can be improved by opening the electromagnetic valve and adjusting the opening degree of the electronic expansion valve, and the heating capacity of the system is improved.
The compressor discharges high-temperature high-pressure gaseous refrigerant through the exhaust port, the high-temperature high-pressure gaseous refrigerant enters the condenser through the connecting pipeline, the high-temperature high-pressure gaseous refrigerant releases heat in the condenser and is condensed into high-pressure liquid refrigerant, the high-pressure liquid refrigerant enters the expansion valve through the pipeline, is subjected to primary pressure reduction through the expansion valve, enters the liquid inlet of the supercharger through the pipeline, enters the gas-liquid hybrid motor to drive the motor to operate, and then is discharged to the inner cavity of the supercharger through the outlet of the gas-liquid. The refrigerant gas-liquid mixture is separated into gaseous refrigerant and liquid refrigerant in the booster cavity. Under the action of pressure, the liquid refrigerant flows out from the liquid outlet of the booster and enters the evaporator through a pipeline. The liquid refrigerant absorbs heat in the evaporator and is evaporated into low-pressure gaseous refrigerant, and the low-pressure gaseous refrigerant enters an air inlet of a booster compressor in the booster through a pipeline.
The gas-liquid hybrid motor drives the booster compressor to operate through the transmission shaft, compresses the gaseous refrigerant entering the booster compressor, and completes the first compression. Then discharged through an exhaust port and enters an air inlet of the compressor through a pipeline. The gaseous refrigerant in the booster cavity enters the exhaust pipeline of the booster compressor through the residual air inlet pipe under the action of pressure, and enters the inlet of the compressor together with the exhaust of the booster compressor.
Under the condition of lower evaporation pressure, the opening degree of the electronic expansion valve can be controlled by opening the electromagnetic valve, part of high-temperature and high-pressure gaseous refrigerant is directly sent to the gas-liquid hybrid motor, the volume of the gas-liquid mixture for starting the motor is increased, and the power of the gas-liquid hybrid motor is increased, so that the compression force of the booster compressor is increased.
Under the working conditions that the refrigerant adopts R22, the evaporation pressure is 350KPa, and the condensation pressure is 1900 KPa. The pressure at the outlet of the expansion valve is controlled to be about 1000KPa, and the pressure booster can increase the return air pressure by about 50-80 KPa.
The innovation points are as follows: the gas-liquid hybrid motor and the booster compressor are added in the refrigeration cycle, so that the refrigeration efficiency of the refrigeration unit is improved.
The method is characterized in that:
the device has the following application range: a water chilling unit, a low-temperature refrigerating system and an air source heat pump unit.
Claims (1)
1. Refrigeration supercharging device, characterized by:
an exhaust port of the compressor (1) is connected with the condenser (2) through a pipeline, an expansion valve (4) is arranged on a liquid outlet pipe of the condenser, and a liquid outlet of the condenser is preliminarily decompressed through the expansion valve through the pipeline and is connected with a supercharger liquid inlet (12) of the supercharger (5); an air outlet of the evaporator (3) is connected with an air inlet (11) of the supercharger, and a liquid inlet of the evaporator is connected with a liquid outlet (14) of the supercharger through a pipeline; the supercharger exhaust port (13) is connected with the compressor air inlet through a pipeline;
an electromagnetic valve (15) and an electronic expansion valve (16) are arranged between an exhaust pipeline of the compressor and a liquid inlet of the supercharger, the liquid inlet of the supercharger is connected with a gas-liquid hybrid motor (7) through an inner pipeline of the supercharger, and a gas-liquid hybrid motor outlet (9) is arranged on the gas-liquid hybrid motor;
the evaporator is connected with a booster compressor (6) through a pipeline, a residual air inlet (10) and a booster exhaust port are arranged on the exhaust side of the booster compressor, a transmission shaft (8) is connected between the booster compressor and the gas-liquid hybrid motor, and an outlet pipe of the booster compressor is communicated with a return pipe of the compressor through a pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922169414.8U CN210980444U (en) | 2019-12-06 | 2019-12-06 | Refrigerating and pressurizing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922169414.8U CN210980444U (en) | 2019-12-06 | 2019-12-06 | Refrigerating and pressurizing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210980444U true CN210980444U (en) | 2020-07-10 |
Family
ID=71423532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922169414.8U Expired - Fee Related CN210980444U (en) | 2019-12-06 | 2019-12-06 | Refrigerating and pressurizing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210980444U (en) |
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2019
- 2019-12-06 CN CN201922169414.8U patent/CN210980444U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200710 Termination date: 20201206 |