CN211364551U - Sterilization carbon dioxide heat pump locomotive air conditioner cooling unit - Google Patents
Sterilization carbon dioxide heat pump locomotive air conditioner cooling unit Download PDFInfo
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- CN211364551U CN211364551U CN201922335024.3U CN201922335024U CN211364551U CN 211364551 U CN211364551 U CN 211364551U CN 201922335024 U CN201922335024 U CN 201922335024U CN 211364551 U CN211364551 U CN 211364551U
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Abstract
The utility model belongs to the technical field of air refrigeration, specifically be the cold unit of carbon dioxide heat pump locomotive air conditioner disinfects. Comprising CO2Compressor, R134a compressor, CO2The exhaust end of the compressor is connected with an outer unit of the combined air conditioner, the outer unit of the combined air conditioner is connected with an evaporative condenser, the evaporative condenser is connected with the combined air conditioner, the combined air conditioner is connected with a heat regenerator, the heat regenerator is connected with an R744 gas-liquid separator, and the R744 gas-liquid separator is connected with a CO2The suction end of the compressor is connected to form a loop; the discharge end of the R134a compressor is connected with the combined type air conditioner outdoor unit 4, the combined type air conditioner outdoor unit is connected with the R134a liquid storage device, the R134a liquid storage device is connected with the evaporative condenser, and the evaporative condenser is compressed with the R134aThe machine air suction ends are connected to form a loop. The utility model discloses an energy-concerving and environment-protective, but air-purifying has higher heat transfer performance, convenient to popularize and use.
Description
Technical Field
The utility model relates to an air refrigeration technical field, concretely relates to carbon dioxide heat pump locomotive air conditioning unit disinfects.
Background
With the improvement of living standard, people have higher and higher requirements on living environment, and meanwhile, the problems of environmental protection and energy conservation are increasingly prominent. The building energy consumption meeting the comfortable living conditions of people accounts for more than 30 percent of the total social energy consumption, and the energy consumed by refrigerating for heating indoor air accounts for 56 to 58 percent of the building energy consumption. Therefore, how to find the optimal answer between meeting the requirement of people's comfort and the development of environmental-friendly and energy-saving has become a focus of attention in the industry. The heat pump is a device which extracts and utilizes low-grade heat in the air by consuming a small part of high-grade electric energy, has the characteristics of environmental protection, energy conservation, safety, convenience and the like, and is more and more emphasized. However, the refrigerant used in the conventional heat pump has the problems of environmental pollution, ozone holes and greenhouse effect, and has great influence on the production and life of people. Under extreme weather conditions, the stability and the refrigerating capacity of the traditional working medium heat pump are limited, so that people must consider searching for a new refrigerant to meet the requirements on working efficiency and environmental protection.
The compression chamber of the air-conditioning refrigeration compressor popular in the market at present adopts a single compression chamber structure, the single compression chamber structure and the manufacturing process are relatively simple, but more electric energy can be consumed, the energy consumption is high, and the environment friendliness is not facilitated. The carbon dioxide working medium is a rare natural refrigerant, is non-toxic and non-flammable, is cheap and easy to obtain, does not damage the natural environment, and has great advantages in the aspect of being used as the refrigerant, so how to utilize the carbon dioxide working medium to refrigerate the indoor environment in an energy-saving and environment-friendly manner is a problem which needs to be solved urgently by people at present.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a carbon dioxide heat pump locomotive air conditioner cooling unit disinfects to the problem that exists among the prior art above, through with CO2The air-purifying type air-purifying refrigerator is used for refrigerating in a mode of combining with R134a, is environment-friendly and efficient, effectively purifies air through the ozone generator, circulates fresh air from the outside of the refrigerator, and can solve the problems that vehicles such as trains, motor cars, high-speed rails and the like are difficult to control and high in infection speed and the like once epidemic situations such as infectious diseases occur due to high personnel densityTo give a title.
In order to realize the purpose, the utility model discloses specifically adopt following technical scheme:
a sterilizing carbon dioxide heat pump locomotive air-conditioning cooling unit comprises CO2Compressor 1, R134a compressor 2, characterized in that: the CO is2The exhaust end of the compressor 1 is connected with an outer unit 4 of a combined air conditioner, the outer unit 4 of the combined air conditioner is connected with an evaporative condenser 5, the evaporative condenser 5 is connected with a combined air conditioner 3, the combined air conditioner 3 is connected with a heat regenerator 6, the heat regenerator 6 is connected with an R744 gas-liquid separator 13, and the R744 gas-liquid separator 13 is connected with a CO2The suction end of the compressor 1 is connected to form a loop;
the discharge end of the R134a compressor 2 is connected with an outdoor unit 4 of a combined air conditioner, the outdoor unit 4 of the combined air conditioner is connected with an R134a liquid storage device 12, the R134a liquid storage device 12 is connected with an evaporative condenser 5, and the evaporative condenser 5 is connected with the suction end of the R134a compressor 2 to form a loop;
an ozone generator 21 is arranged on the outlet of the air supply fan 14 of the combined air conditioner 3.
The CO is2An electric valve b23 is arranged on a pipeline between the compressor 1 and the combined type air conditioner external unit 4.
An electric valve b23 is arranged on a communication pipeline between the combined air conditioner 3 and the heat regenerator 6.
The CO is2Compressor 1 is an R744 transcritical compressor.
An electric heating defrosting pipe 16 is arranged on the combined type air conditioner external unit 4.
And a communication pipeline between the combined type air conditioner external unit 4 and the evaporative condenser 5 is connected with an R744 high-pressure liquid storage device 11.
And a solenoid valve b10 is arranged on a communication pipeline between the R134a compressor 2 and the combined air conditioner outdoor unit 4.
An electronic expansion valve 7 is arranged on a communication pipeline between the R134a liquid storage device 12 and the evaporative condenser 5.
An air filter 17 is arranged on the air inlet of the combined air conditioner 3.
Compared with the prior art, the beneficial effects of the utility model reside in that:
1. the locomotive refrigeration adopts the combination of environment-friendly refrigerants R744 and R134a to replace Freon, and has great practical significance in environmental protection and energy conservation.
2. The locomotive which is additionally provided with the ozone generator through the air supply port can effectively purify air and inhibit the infection of germs, has practical significance for the locomotive which has dense personnel and large personnel flow, has no any sterilizing device in an inner chamber and mainly adopts a natural wind and air circulation mode outside the locomotive.
3. Install air cleaner additional, can circulate indoor air to the car in before, carry out filtration treatment, carry out ozone sterilization again to play air purification source's effect.
To sum up, the utility model discloses utilize the carbon dioxide working medium to have a large amount of heat releases in the cooling process, utilize the outer machine of efficient combination formula air conditioner to transmit the uniform temperature heat outdoor, make indoor temperature reach suitable temperature. The addition of the R134a system can enhance the cooling and heating effects of the combined air conditioner external unit, improve the energy efficiency of the carbon dioxide circulating system and improve the operation stability of the whole system. All adopted refrigerants are environment-friendly refrigerants, wherein R134a is a widely popular medium-low temperature environment-friendly refrigerant at present, carbon dioxide is used as a pure natural refrigerant, the ozone layer destruction potential value is 0, the global warming potential value is 1, and the thermodynamic performance is excellent. To sum up, the utility model discloses energy-concerving and environment-protective, refrigeration efficiency is high, has fairly big development potentiality.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of the air circulation of the present invention.
Shown in the figure: 1.CO2The air conditioner comprises a compressor, a R134a compressor, a 3 combined air conditioner, a 4 combined air conditioner external unit, a 5 evaporative condenser, a 6 heat regenerator, a 7 electronic expansion valve, a 8R 744 electronic pressure regulating valve, a 9 electromagnetic valve a, a 10 electromagnetic valve b, a 11R 744 high-pressure reservoir, a 12R 134a reservoir, a 13R 744 gas-liquid separator, a 14 air supply fan, a 15 auxiliary electric heating unit, a 16 electric defrosting pipe, a 17 air filter, a 18 air inlet grid, a 19 gas mixing chamber, a 20 exhaust device, a 21 ozone generator, a 22 electric valve a, a 23 electric valve b.
Detailed Description
The structure and the advantageous effects of the present invention will be further described with reference to the accompanying drawings and the embodiments.
Examples
A sterilized carbon dioxide heat pump locomotive air-conditioning cooling unit, as shown in figures 1 to 2, comprises CO2Compressor 1, R134a compressor 2, characterized in that: the CO is2The exhaust end of the compressor 1 is connected with the R744 heat dissipation part of the combined air conditioner external unit 4, the combined air conditioner external unit 4 is connected with the R744 cooling end of the evaporative condenser 5, the evaporative condenser 5 is connected with the refrigeration part of the R744 of the combined air conditioner 3, the refrigeration part of the combined air conditioner 3 is connected with the heat regenerator 6, the heat regenerator 6 is connected with the R744 gas-liquid separator 13, the R744 gas-liquid separator 13 is connected with the CO 744 gas-liquid separator 132The suction end of the compressor 1 is connected to form a loop;
the discharge end of the R134a compressor 2 is connected with an outdoor unit 4 of a combined type air conditioner, the outdoor unit 4 of the combined type air conditioner is connected with a R134a liquid storage device 12, the R134a liquid storage device 12 is connected with the other part of the evaporative condenser 5, and the other part of the evaporative condenser 5 is simultaneously connected with the suction end of the R134a compressor 2 to form a loop;
an outlet of the air supply opening 14 of the combined air conditioner 3 is provided with an ozone generator 21. The CO is2An electric valve b23 is arranged on a pipeline between the compressor 1 and the combined type air conditioner external unit 4.
An electric valve b23 is arranged on a communication pipeline between the combined air conditioner 3 and the heat regenerator 6.
The CO is2Compressor 1 is an R744 transcritical compressor.
An electric heating defrosting pipe 16 is arranged on the combined type air conditioner external unit 4.
And a communication pipeline between the combined type air conditioner external unit 4 and the evaporative condenser 5 is connected with an R744 high-pressure liquid storage device 11.
And a solenoid valve b10 is arranged on a communication pipeline between the R134a compressor 2 and the combined air conditioner outdoor unit 4.
An electronic expansion valve is arranged on a communication pipeline between the R134a liquid storage device 12 and the evaporative condenser 5.
An air filter 17 is arranged on the air inlet of the combined air conditioner 3.
The utility model discloses a theory of operation does: the unit utilizes carbon dioxide working medium to release a large amount of heat in the cooling process, and utilizes the high-efficiency combined air conditioner external unit to transfer heat with a certain temperature to the outside so as to enable the indoor temperature to reach the appropriate temperature. The addition of the R134a system can enhance the refrigeration effect of the combined air conditioner outdoor unit and improve the energy efficiency of the carbon dioxide circulation system, and simultaneously improve the operation stability of the whole unit. All adopted refrigerants are environment-friendly refrigerants, wherein R134a is a widely popular medium-low temperature environment-friendly refrigerant at present, carbon dioxide is used as a pure natural refrigerant, the ozone layer destruction potential value is 0, the global warming potential value is 1, and the thermodynamic performance is excellent.
The utility model discloses a refrigeration flow does: the unit has two parts of circulation, wherein one part of circulation adopts R744 as a circulation working medium, and the other part of circulation adopts R134a as a circulation working medium. The part of R744 as the cycle fluid is that the carbon dioxide working medium is compressed into the high-temperature high-pressure gas through the R744 transcritical compressor and is opened by using the electric valve b, the electric valve a is closed, the heat of a certain temperature is transmitted to the outdoor through the combined air conditioner external unit, the heat is exchanged with R134a through the evaporative condenser, the carbon dioxide is condensed, the condensed carbon dioxide liquid enters the combined air conditioner to refrigerate indoors, and the condensed carbon dioxide liquid passes through the heat regenerator and then enters the R744 gas-liquid separator and then enters the R744 compressor suction inlet to form a loop. The part of the R134a as the circulating working medium is compressed into high-temperature and high-pressure gas by the R134a compressor, and the gas is opened by using the electromagnetic valve b, and the electromagnetic valve a is closed, enters the combined air conditioner outdoor unit and transfers heat at a certain temperature to the outdoor unit. The refrigerant after heat exchange enters an R134a liquid storage device, enters a condensation evaporator after passing through an expansion valve to be evaporated, so that cold energy is provided for condensation of carbon dioxide, and the refrigerant after heat absorption of R134a passes through a gas-liquid separator and then returns to the suction end of the R134a compressor to complete circulation.
The above description is only a preferred example of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A sterilizing carbon dioxide heat pump locomotive air-conditioning cooling unit comprises CO2Compressor (1), R134a compressor (2), characterized by: the CO is2The exhaust end of a compressor (1) is connected with an outer combined air conditioner unit (4), the outer combined air conditioner unit (4) is connected with an evaporative condenser (5), the evaporative condenser (5) is connected with a combined air conditioner (3), the combined air conditioner (3) is connected with a heat regenerator (6), the heat regenerator (6) is connected with an R744 gas-liquid separator (13), and the R744 gas-liquid separator (13) is connected with a CO 744 gas-liquid separator (13)2The suction end of the compressor (1) is connected to form a loop;
the exhaust end of the R134a compressor (2) is connected with an outdoor unit (4) of a combined air conditioner, the outdoor unit (4) of the combined air conditioner is connected with an R134a liquid storage device (12), the R134a liquid storage device (12) is connected with an evaporative condenser (5), and the evaporative condenser (5) is connected with the suction end of the R134a compressor (2) to form a loop;
an ozone generator (21) is arranged on the outlet of the air supply fan (14) of the combined air conditioner (3).
2. The sterilizing carbon dioxide heat pump locomotive air-conditioning cooling unit as claimed in claim 1, characterized in that: the CO is2An electric valve b (23) is arranged on a pipeline between the compressor (1) and the combined type air conditioner external unit (4).
3. The sterilizing carbon dioxide heat pump locomotive air-conditioning cooling unit as claimed in claim 1, characterized in that: and an electric valve b (23) is arranged on a communication pipeline between the combined air conditioner (3) and the heat regenerator (6).
4. The sterilizing carbon dioxide heat pump locomotive air-conditioning cooling unit as claimed in claim 1, characterized in that: the CO is2The compressor (1) is an R744 transcritical compressor.
5. The sterilizing carbon dioxide heat pump locomotive air-conditioning cooling unit as claimed in claim 1, characterized in that: an electric heating defrosting pipe (16) is arranged on the combined air conditioner external unit (4).
6. The sterilizing carbon dioxide heat pump locomotive air-conditioning cooling unit as claimed in claim 1, characterized in that: and a communication pipeline between the combined type air conditioner external unit (4) and the evaporative condenser (5) is connected with an R744 high-pressure liquid storage device (11).
7. The sterilizing carbon dioxide heat pump locomotive air-conditioning cooling unit as claimed in claim 1, characterized in that: and a communication pipeline between the R134a compressor (2) and the combined air conditioner external unit (4) is provided with an electromagnetic valve b (10).
8. The sterilizing carbon dioxide heat pump locomotive air-conditioning cooling unit as claimed in claim 1, characterized in that: and an electronic expansion valve (7) is arranged on a communication pipeline between the R134a liquid storage device (12) and the evaporative condenser (5).
9. The sterilizing carbon dioxide heat pump locomotive air-conditioning cooling unit as claimed in claim 1, characterized in that: an air filter (17) is arranged on an air inlet of the combined air conditioner (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922335024.3U CN211364551U (en) | 2019-12-23 | 2019-12-23 | Sterilization carbon dioxide heat pump locomotive air conditioner cooling unit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922335024.3U CN211364551U (en) | 2019-12-23 | 2019-12-23 | Sterilization carbon dioxide heat pump locomotive air conditioner cooling unit |
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| CN211364551U true CN211364551U (en) | 2020-08-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110920647A (en) * | 2019-12-23 | 2020-03-27 | 甘肃一德新能源设备有限公司 | Sterilization carbon dioxide heat pump locomotive air conditioner cooling unit and use method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110920647A (en) * | 2019-12-23 | 2020-03-27 | 甘肃一德新能源设备有限公司 | Sterilization carbon dioxide heat pump locomotive air conditioner cooling unit and use method thereof |
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