CN105546891A - Vehicle-mounted air-conditioning system and energy saving method thereof - Google Patents

Vehicle-mounted air-conditioning system and energy saving method thereof Download PDF

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Publication number
CN105546891A
CN105546891A CN201511022072.7A CN201511022072A CN105546891A CN 105546891 A CN105546891 A CN 105546891A CN 201511022072 A CN201511022072 A CN 201511022072A CN 105546891 A CN105546891 A CN 105546891A
Authority
CN
China
Prior art keywords
compressor
outlet
connects
expansion valve
air conditioner
Prior art date
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.)
Pending
Application number
CN201511022072.7A
Other languages
Chinese (zh)
Inventor
罗岳华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hunan Vaqoung Electric Co Ltd
Original Assignee
Hunan Vaqoung Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to CN2015106116434 priority Critical
Priority to CN201510611643.4A priority patent/CN105115183A/en
Application filed by Hunan Vaqoung Electric Co Ltd filed Critical Hunan Vaqoung Electric Co Ltd
Priority to CN201511022072.7A priority patent/CN105546891A/en
Publication of CN105546891A publication Critical patent/CN105546891A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
    • F25B41/00Fluid-circulation arrangements
    • F25B41/30Expansion means; Dispositions thereof
    • F25B41/31Expansion valves
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/32Cooling devices
    • B60H1/3204Cooling devices using compression
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/32Cooling devices
    • B60H1/3204Cooling devices using compression
    • B60H1/3205Control means therefor
    • B60H1/3211Control means therefor for increasing the efficiency of a vehicle refrigeration cycle
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/32Cooling devices
    • B60H1/3204Cooling devices using compression
    • B60H1/3205Control means therefor
    • B60H1/3216Control means therefor for improving a change in operation duty of a compressor in a vehicle
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/80Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
    • Y02T10/88Optimized components or subsystems, e.g. lighting, actively controlled glasses

Abstract

The invention discloses a vehicle-mounted air-conditioning system and an energy saving method thereof. The vehicle-mounted air-conditioning system comprises a compressor, an evaporator, a condenser, a flash evaporator, a one-way stop valve, a first expansion valve and a second expansion valve. An outlet of the compressor is connected with the condenser. An outlet of the condenser is connected with the first expansion valve. An outlet of the first expansion valve is connected with the evaporator. An outlet of the evaporator is connected with an inlet of the compressor. The compressor is an air supply compressor. The outlet of the first expansion valve is connected with an inlet of the flash evaporator. A gaseous refrigerant outlet of the flash evaporator is connected with an intermediate air supply port of the air supply compressor through the one-way stop valve. A liquid refrigerant outlet of the flash evaporator is connected with an inlet of the evaporator through the second expansion valve. The vehicle-mounted air-conditioning system can operate stably in normal-temperature environments, high-temperature environments and low-temperature environments, and the energy saving effect is good.

Description

The power-economizing method of a kind of mounted air conditioner system and mounted air conditioner system
[technical field]
The present invention relates to air-conditioning system, particularly relate to the power-economizing method of a kind of mounted air conditioner system and mounted air conditioner system.
[background technology]
Compressor is the nucleus equipment in four large parts of air conditioner industry refrigeration system, and under certain condensation temperature, the capacity of compressor and delivery temperature limit the performance of whole air-conditioning system to a great extent.
When condensation temperature is certain, when common compressor is run under low evaporating temperature, there will be inspiratory volume to increase, refrigerant circulation reduces, pressure ratio increases, and volumetric efficiency reduces, and compressor displacement declines, heating performance and Energy Efficiency Ratio decline, and the words of excessive discharge temperature also even can make lubricating oil carbonization.When environment temperature is too high, condensation temperature and pressure can corresponding increases, cause compressor delivery pressure too high and occur high voltage protective.
The operational effect of mounted air conditioner system under low temperature or hot environment is also unsatisfactory, and when outdoor temperature is lower than 0 DEG C, the degree of superheat of evaporimeter is low, and heating efficiency is low, and system energy consumption is high.When environment temperature is too high, pressure at expulsion raises, and when reaching high voltage protective point, air-conditioning will be shut down.
[summary of the invention]
The technical problem to be solved in the present invention is to provide the power-economizing method of mounted air conditioner system of a kind of working stability, good energy-conserving effect.
The present invention wants another technical problem solved to be to provide the mounted air conditioner system of a kind of working stability, good energy-conserving effect.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is, a kind of power-economizing method of mounted air conditioner system,
A flash evaporation is increased after expansion valve, the cold-producing medium of the outlet of condenser enters flash evaporation through the first expansion valve, the cold-producing medium that flash evaporation flows out is divided into two-way, bypass gaseous refrigerant participates in circulation by directly entering compressor intermediate cavity after unidirectional stop valve, main road liquid refrigerant enters evaporimeter through the second expansion valve, returns compressor air suction mouth afterwards and enters compressor cycle.
Above-described power-economizing method, described mounted air conditioner system is automobile air conditioning system system.
A kind of technical scheme of mounted air conditioner system is, comprise compressor, evaporimeter, condenser, flash evaporation, unidirectional stop valve, the first expansion valve and the second expansion valve, the outlet of compressor connects condenser, the outlet of condenser connects the first expansion valve, the outlet of the first expansion valve connects evaporimeter, the outlet of evaporimeter connects the entrance of compressor, and described compressor is air supply compressor; The outlet of the first expansion valve connects the entrance of flash evaporation, and the gaseous refrigerant outlet of flash evaporation connects the second vapor injection mouth of air supply compressor through unidirectional stop valve; The liquid refrigerant outlet of flash evaporation connects the entrance of evaporimeter through the second expansion valve.
Above-described mounted air conditioner system, comprises gas-liquid separator, the outlet of evaporimeter connects compressor entrance through gas-liquid separator.
Above-described mounted air conditioner system, comprise four-way change-over valve, the first interface of four-way change-over valve connects the outlet of compressor, second interface of four-way change-over valve connects the entrance of condenser, 3rd interface of four-way change-over valve connects the outlet of evaporimeter, and the 4th interface of four-way change-over valve connects the entrance of compressor through gas-liquid separator; On-board air conditioner in cooling mode, the first interface of four-way change-over valve and the second orifice, the 3rd interface and the 4th orifice; In a heating mode, the first interface of four-way change-over valve and the 3rd orifice, the second interface and the 4th orifice.
Above-described mounted air conditioner system, flash evaporation gaseous refrigerant is exported to the pipeline of unidirectional stop valve, unidirectional stop valve has heat-insulation layer to the pipeline of evaporimeter and evaporimeter to the pipeline of air supply compressor second vapor injection mouth, the second expansion valve to the pipeline of four-way change-over valve.
Above-described mounted air conditioner system, described mounted air conditioner system is automobile air conditioning system system.
Mounted air conditioner system of the present invention all working stability, good energy-conserving effect under the environment of normal temperature, high temperature or low temperature.
[accompanying drawing explanation]
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
Fig. 1 is the schematic diagram of embodiment of the present invention mounted air conditioner system.
[detailed description of the invention]
Embodiment of the present invention mounted air conditioner system as shown in Figure 1, comprises air supply compressor 1, four-way change-over valve 2, evaporimeter 8, condenser 3, gas-liquid separator 9, flash evaporation 5, unidirectional stop valve 6, expansion valve 4 and expansion valve 7.
The outlet of air supply compressor 1 connects the entrance of condenser 3 through four-way change-over valve 2, the outlet of condenser 3 connects expansion valve 4.
The outlet of expansion valve 4 connects the entrance of flash evaporation 5, and the gaseous refrigerant outlet of flash evaporation 5 connects the second vapor injection mouth of air supply compressor 1 through unidirectional stop valve 6, the liquid refrigerant outlet of flash evaporation 5 connects the entrance of evaporimeter 8 through expansion valve 7.
The outlet of evaporimeter 8 connects the entrance of gas-liquid separator 9 through four-way change-over valve 2, the outlet of gas-liquid separator 9 connects the entrance of air supply compressor 1, and gas-liquid separator 9 is used for preventing liquid refrigerant from entering compressor 1.
Wherein, the first interface D of four-way change-over valve 2 connects the outlet of compressor 1, second interface C of four-way change-over valve 2 connects the entrance of condenser 3, and the 3rd interface E of four-way change-over valve 2 connects the outlet of evaporimeter 8, and the 4th interface S of four-way change-over valve 2 connects the entrance of gas-liquid separator 9.
In cooling mode, the first interface D of four-way change-over valve 2 is communicated with the second interface C on-board air conditioner, and the 3rd interface E is communicated with the 4th interface S; In a heating mode, the first interface D of four-way change-over valve 2 is communicated with the 3rd interface E, and the second interface C is communicated with the 4th interface S.
Enter flash evaporation 5 after the refrigerant outflow expansion valve 4 of the above embodiment of the present invention, be out divided into two-way afterwards from flash evaporation 5, a road is gaseous refrigerant, and the intermediate cavity being accessed air supply compressor 1 by unidirectional stop valve 6 participates in circulation.Another road is liquid refrigerant, enters evaporimeter, enter compressor cycle more afterwards through the air entry of compressor 1 from flash evaporation 5 through expansion valve 7 step-down cooling.
The air supply compressor of the above embodiment of the present invention is as the criterion two-stage compression, be made up of low-pressure stage compression process, second vapor injection process and hiigh pressure stage compression process, within the compressor, chamber supplements medium pressure gas, capacity can be increased, reduce delivery temperature, thus improve refrigeration or heating performance, improve efficiency utilization rate, reach energy-conservation effect.
In order to the unavailable heat reducing pipeline exchanges, improve the thermal efficiency, flash evaporation 5 gaseous refrigerant is exported to outside the pipeline of unidirectional stop valve 6, the pipeline of unidirectional stop valve 6 to air supply compressor 1 second vapor injection mouth, the pipeline of expansion valve 7 to evaporimeter 8 and the pipeline of evaporimeter 8 to four-way change-over valve 2 heat-insulation layer.
The content that above-described embodiment is illustrated should be understood to these embodiments only for being illustrated more clearly in the present invention, and be not used in and limit the scope of the invention, after having read the present invention, the amendment of those skilled in the art to the various equivalent form of value of the present invention has all fallen within the application's claims limited range.

Claims (7)

1. the power-economizing method of a mounted air conditioner system, it is characterized in that, a flash evaporation is increased after expansion valve, the cold-producing medium of the outlet of condenser enters flash evaporation through the first expansion valve, the cold-producing medium that flash evaporation flows out is divided into two-way, bypass gaseous refrigerant participates in circulation by directly entering compressor intermediate cavity after unidirectional stop valve, and main road liquid refrigerant enters evaporimeter through the second expansion valve, returns compressor air suction mouth afterwards and enters compressor cycle.
2. the power-economizing method of mounted air conditioner system according to claim 1, is characterized in that, described mounted air conditioner system is automobile air conditioning system system.
3. a mounted air conditioner system, comprise compressor, evaporimeter, condenser and the first expansion valve, the outlet of compressor connects condenser, the outlet of condenser connects the first expansion valve, the outlet of the first expansion valve connects evaporimeter, and the outlet of evaporimeter connects the entrance of compressor, it is characterized in that, comprise flash evaporation, unidirectional stop valve and the second expansion valve, described compressor is air supply compressor; The outlet of the first expansion valve connects the entrance of flash evaporation, and the gaseous refrigerant outlet of flash evaporation connects the second vapor injection mouth of air supply compressor through unidirectional stop valve; The liquid refrigerant outlet of flash evaporation connects the entrance of evaporimeter through the second expansion valve.
4. mounted air conditioner system according to claim 3, is characterized in that, comprises gas-liquid separator, the outlet of evaporimeter connects compressor entrance through gas-liquid separator.
5. mounted air conditioner system according to claim 4, it is characterized in that, comprise four-way change-over valve, the first interface of four-way change-over valve connects the outlet of compressor, second interface of four-way change-over valve connects the entrance of condenser, 3rd interface of four-way change-over valve connects the outlet of evaporimeter, and the 4th interface of four-way change-over valve connects the entrance of compressor through gas-liquid separator; On-board air conditioner in cooling mode, the first interface of four-way change-over valve and the second orifice, the 3rd interface and the 4th orifice; In a heating mode, the first interface of four-way change-over valve and the 3rd orifice, the second interface and the 4th orifice.
6. mounted air conditioner system according to claim 5, it is characterized in that, flash evaporation gaseous refrigerant is exported to the pipeline of unidirectional stop valve, unidirectional stop valve has heat-insulation layer to the pipeline of evaporimeter and evaporimeter to the pipeline of air supply compressor second vapor injection mouth, the second expansion valve to the pipeline of four-way change-over valve.
7. mounted air conditioner system according to claim 3, is characterized in that, described mounted air conditioner system is automobile air conditioning system system.
CN201511022072.7A 2015-09-23 2015-12-30 Vehicle-mounted air-conditioning system and energy saving method thereof Pending CN105546891A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN2015106116434 2015-09-23
CN201510611643.4A CN105115183A (en) 2015-09-23 2015-09-23 Bus air conditioner system and energy conservation method thereof
CN201511022072.7A CN105546891A (en) 2015-09-23 2015-12-30 Vehicle-mounted air-conditioning system and energy saving method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201511022072.7A CN105546891A (en) 2015-09-23 2015-12-30 Vehicle-mounted air-conditioning system and energy saving method thereof

Publications (1)

Publication Number Publication Date
CN105546891A true CN105546891A (en) 2016-05-04

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Family Applications (2)

Application Number Title Priority Date Filing Date
CN201510611643.4A Withdrawn CN105115183A (en) 2015-09-23 2015-09-23 Bus air conditioner system and energy conservation method thereof
CN201511022072.7A Pending CN105546891A (en) 2015-09-23 2015-12-30 Vehicle-mounted air-conditioning system and energy saving method thereof

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CN201510611643.4A Withdrawn CN105115183A (en) 2015-09-23 2015-09-23 Bus air conditioner system and energy conservation method thereof

Country Status (1)

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CN (2) CN105115183A (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007155230A (en) * 2005-12-06 2007-06-21 Hitachi Appliances Inc Air conditioner
CN103348197A (en) * 2011-07-05 2013-10-09 松下电器产业株式会社 Refrigeration cycle device
CN103925753A (en) * 2013-01-16 2014-07-16 珠海格力电器股份有限公司 Air conditioning device
CN203893511U (en) * 2014-06-11 2014-10-22 珠海格力电器股份有限公司 Heat pump system
CN104634000A (en) * 2013-11-14 2015-05-20 美的集团股份有限公司 Heat exchanger assembly, heat exchange system and air conditioner
CN205300014U (en) * 2015-09-23 2016-06-08 湖南华强电气股份有限公司 Vehicle -mounted air conditioning system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007155230A (en) * 2005-12-06 2007-06-21 Hitachi Appliances Inc Air conditioner
CN103348197A (en) * 2011-07-05 2013-10-09 松下电器产业株式会社 Refrigeration cycle device
CN103925753A (en) * 2013-01-16 2014-07-16 珠海格力电器股份有限公司 Air conditioning device
CN104634000A (en) * 2013-11-14 2015-05-20 美的集团股份有限公司 Heat exchanger assembly, heat exchange system and air conditioner
CN203893511U (en) * 2014-06-11 2014-10-22 珠海格力电器股份有限公司 Heat pump system
CN205300014U (en) * 2015-09-23 2016-06-08 湖南华强电气股份有限公司 Vehicle -mounted air conditioning system

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Application publication date: 20160504

RJ01 Rejection of invention patent application after publication