CN106394181A - R134a or 1234yf heat pump air-conditioning system and control method - Google Patents
R134a or 1234yf heat pump air-conditioning system and control method Download PDFInfo
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- CN106394181A CN106394181A CN201610900636.0A CN201610900636A CN106394181A CN 106394181 A CN106394181 A CN 106394181A CN 201610900636 A CN201610900636 A CN 201610900636A CN 106394181 A CN106394181 A CN 106394181A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/32—Cooling devices
- B60H1/3204—Cooling devices using compression
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/32—Cooling devices
- B60H1/3204—Cooling devices using compression
- B60H1/3205—Control means therefor
- B60H1/3211—Control means therefor for increasing the efficiency of a vehicle refrigeration cycle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/32—Cooling devices
- B60H2001/3269—Cooling devices output of a control signal
- B60H2001/3276—Cooling devices output of a control signal related to a condensing unit
- B60H2001/3279—Cooling devices output of a control signal related to a condensing unit to control the refrigerant flow
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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]
- Y02B30/52—Heat recovery pumps, i.e. heat pump based systems or units able to transfer the thermal energy from one area of the premises or part of the facilities to a different one, improving the overall efficiency
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- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
The embodiment of the invention provides an R134a or 1234yf heat pump air-conditioning system and a control method. The R134a or 1234yf heat pump air-conditioning system comprises an electric compressor, an external heat exchanger, a first expansion valve, a four-way reversing gas-liquid separator with a heat regenerator and an evaporator. The output end of the electric compressor is connected with the input end of the external heat exchanger. The output end of the external heat exchanger is connected with a first input end of the four-way reversing gas-liquid separator with the heat regenerator. A first output end of the four-way reversing gas-liquid separator with the heat regenerator is connected with the input end of the first expansion valve. The output end of the first expansion valve is connected with the input end of the evaporator. The output end of the evaporator is connected with a second input end of the four-way reversing gas-liquid separator with the heat regenerator. A second output end of the four-way reversing gas-liquid separator with the heat regenerator is connected with the input end of the electric compressor. By means of the R134a or 1234yf heat pump air-conditioning system and the control method, the refrigerating cycle is achieved; the use ratio of the R134a or 1234yf heat pump air-conditioning system is increased; and the refrigerating effect of the R134a or 1234yf heat pump air-conditioning system is improved.
Description
Technical field
The present invention relates to air-conditioning technical field, in particular to a kind of R134a or 1234yf heat pump type air conditioning system and control
Method processed.
Background technology
With the continuous improvement of people's living standard, no matter being to be fitted with sky in place of residence or in the automobile travelling
Adjust, for automobile, either still all subject serious weather condition in winter in summer.For example, summer
Automobile, in outdoor benz, can produce substantial amounts of heat, but the heat of in-car is as well as increase, at present in-car air-conditioning system
The refrigeration of the 1234yf cold-producing medium using is very poor, in order to bring nice and cool experience to in-car driver and passenger, changes
Kind refrigeration is current urgent need to solve the problem.
Content of the invention
It is an object of the invention to provide a kind of R134a or 1234yf heat pump type air conditioning system and control method, it can carry
The utilization rate of high air-conditioning system and refrigeration.
In a first aspect, the embodiment of the present invention provides a kind of R134a or 1234yf heat pump type air conditioning system, it includes electric compressor
Machine, car external heat exchanger, the first expansion valve, four-way commutation zone regenerator gas-liquid separator and evaporimeter.Described motor compressor
Output end is connected with the input of described car external heat exchanger.The output end of described car external heat exchanger and described four-way commutation zone backheat
The first input end of device gas-liquid separator connects.First output end of described four-way commutation zone regenerator gas-liquid separator with described
The input of the first expansion valve connects.The output end of described first expansion valve is connected with the input of described evaporimeter.Described steaming
The output end sending out device is connected with the second input of described four-way commutation zone regenerator gas-liquid separator.Described four-way commutation is taken back
Second output end of hot device gas-liquid separator is connected with the input of described motor compressor.Described motor compressor is used for producing
The gaseous coolant of HTHP, described gaseous coolant is inputted described car external heat exchanger；Described car external heat exchanger is used for described
Gaseous coolant does heat exchange and processes, so that described gaseous coolant becomes the first liquid refrigerant of middle temperature high pressure, by described first liquid
State cold-producing medium inputs described four-way commutation zone regenerator gas-liquid separator；Described four-way commutation zone regenerator gas-liquid separator is used for
Described first liquid refrigerant is inputted described first expansion valve；Described first expansion valve is used for described first liquid refrigerant
Do reducing pressure by regulating flow to process, so that described first liquid refrigerant becomes the second liquid refrigerant of low-temp low-pressure；Described evaporimeter
For to described second liquid refrigerant heat absorption, so that described second liquid refrigerant forms low temperature, the 3rd gaseous state system of low pressure
Cryogen；Described four-way commutation zone regenerator gas-liquid separator is additionally operable to described 3rd gaseous refrigerant of described evaporimeter input
In the gaseous state that carries separate with the refrigerant air-liquid of liquid.
In present pre-ferred embodiments, above-mentioned also include stop valve, the input of described stop valve and described electronic pressure
The output end of contracting machine connects, and the output end of described stop valve is connected with the input of described car external heat exchanger.Described stop valve is used
In by described gaseous coolant input described car external heat exchanger.
In present pre-ferred embodiments, above-mentioned also include the second expansion valve, the input of described second expansion valve and institute
The output end stating motor compressor connects, and the output end of described second expansion valve is connected with the input of described car external heat exchanger.
In present pre-ferred embodiments, above-mentioned also include regenerator, the input of described regenerator is changed with described four-way
Connect to the second output end with regenerator gas-liquid separator, the input of the output end of described regenerator and described motor compressor
End connects.
In present pre-ferred embodiments, above-mentioned also include plate type heat exchanger, the first input end of described plate type heat exchanger
It is connected with the output end of described motor compressor, the input of the first output end of described plate type heat exchanger and described second expansion valve
End connects.
In present pre-ferred embodiments, above-mentioned also include water pump and warm air heater, the second of described plate type heat exchanger
Output end is connected with the input of described water pump, and the output end of described water pump is connected with the output end of described warm air heater, institute
Second input of the output end and described plate type heat exchanger of stating warm air heater is connected.
In present pre-ferred embodiments, above-mentioned also include hydro-thermal PTC, the input of described hydro-thermal PTC and described water pump
Output end connect, the output end of described hydro-thermal PTC is connected with the input of described warm air heater.Described hydro-thermal PTC is used for
Heat control is carried out according to external command.
In present pre-ferred embodiments, above-mentioned water pump is electronic water pump.Described electronic water pump is used for according to water outlet or goes out
Air temperature carries out the precise control of the output flow of described electronic water pump.
In present pre-ferred embodiments, above-mentioned car external heat exchanger is provided with the temperature for detecting described car external heat exchanger
Temperature sensor and controller, described controller coupled with described temperature sensor.Described temperature sensor is used for detecting
The operating temperature of described car external heat exchanger.
Second aspect, also provides a kind of control method in the embodiment of the present invention, and methods described includes：Described motor compressor
Produce the gaseous coolant of HTHP, described gaseous coolant is inputted described car external heat exchanger；Described car external heat exchanger is to described
Gaseous coolant does heat exchange and processes, so that described gaseous coolant becomes the first liquid refrigerant of middle temperature high pressure, by described first liquid
State cold-producing medium inputs described four-way commutation zone regenerator gas-liquid separator；Described four-way commutation zone regenerator gas-liquid separator is by institute
State the first liquid refrigerant and input described first expansion valve；Described first liquid refrigerant is done throttling fall by described first expansion valve
Pressure is processed, so that described first liquid refrigerant becomes the second liquid refrigerant of low-temp low-pressure；Described evaporimeter is to described
Two liquid refrigerant heat absorptions, so that described second liquid refrigerant forms low temperature, the 3rd gaseous refrigerant of low pressure；Described four-way
The gaseous state carrying in described 3rd gaseous refrigerant that described evaporimeter is inputted by commutation zone regenerator gas-liquid separator and liquid
Refrigerant air-liquid separate.
The invention described above provide a kind of R134a or 1234yf heat pump type air conditioning system and control method, this R134a or
1234yf heat pump type air conditioning system passes through motor compressor and will produce the gaseous coolant of HTHP, and will be described for gaseous coolant input
Car external heat exchanger, then heat exchange process is done by car external heat exchanger to described gaseous coolant, so that described gaseous coolant becomes middle temperature
First liquid refrigerant of high pressure, described first liquid refrigerant is inputted described four-way commutation zone regenerator gas-liquid separator,
Hence into the first expansion valve, the first liquid refrigerant is done by reducing pressure by regulating flow by the first expansion valve and processes, so that described first
Liquid refrigerant becomes the second liquid refrigerant of low-temp low-pressure, so that evaporimeter is to the second liquid refrigerant heat-soak treatment, with
Described second liquid refrigerant is made to form low temperature, the 3rd gaseous refrigerant of low pressure, then by the 3rd gaseous refrigerant from evaporation
Device output turns again to four-way commutation zone regenerator gas-liquid separator, by four-way commutation zone regenerator gas-liquid separator by the 3rd
Gaseous refrigerant and the second liquid refrigerant gas-liquid separation, thus by the gaseous refrigerant input motor compressor after separation, enter
And complete kind of refrigeration cycle and the utilization rate and the refrigeration that improve this R134a or 1234yf heat pump type air conditioning system.And pass through
Refrigeration can largely be improved using R134a or 1234yf cold-producing medium.
Brief description
In order to be illustrated more clearly that the technical scheme of the embodiment of the present invention, below will be attached to use required in embodiment
Figure is briefly described it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, and it is right to be therefore not construed as
The restriction of scope, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to this
A little accompanying drawings obtain other related accompanying drawings.
Fig. 1 is a kind of structured flowchart of R134a or 1234yf heat pump type air conditioning system that present pre-ferred embodiments provide；
Fig. 2 is a kind of structured flowchart of R134a or 1234yf heat pump type air conditioning system that present pre-ferred embodiments provide；
Fig. 3 is a kind of structured flowchart of R134a or 1234yf heat pump type air conditioning system that present pre-ferred embodiments provide；
Fig. 4 is a kind of flow chart of control method that present pre-ferred embodiments provide.
Icon：100-R134a or 1234yf heat pump type air conditioning system；110- motor compressor；120- car external heat exchanger；
121- temperature sensor；122- controller；130- four-way commutation zone regenerator gas-liquid separator；140- first expansion valve；
150- evaporimeter；160- stop valve；170- plate type heat exchanger；180- second expansion valve；190- regenerator；210- warm braw
Heater；220- water pump；230- hydro-thermal PTC.
Specific embodiment
Purpose, technical scheme and advantage for making the embodiment of the present invention are clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described it is clear that described embodiment is
The a part of embodiment of the present invention, rather than whole embodiments.The present invention generally described and illustrated in accompanying drawing herein is implemented
The assembly of example can be arranged with various different configurations and design.
Therefore, below the detailed description of the embodiments of the invention providing in the accompanying drawings is not intended to limit claimed
The scope of the present invention, but be merely representative of the selected embodiment of the present invention.Based on the embodiment in the present invention, this area is common
The every other embodiment that technical staff is obtained under the premise of not making creative work, broadly falls into the model of present invention protection
Enclose.
It should be noted that：Similar label and letter represent similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined in individual accompanying drawing, then do not need it to be defined further and explains in subsequent accompanying drawing.
In describing the invention, it should be noted that term " first ", " second ", " the 3rd " etc. are only used for differentiation and retouch
State, and it is not intended that indicating or hint relative importance.
Additionally, the term such as term " level ", " vertical ", " pendency " is not offered as requiring part abswolute level or pendency, and
It is to be slightly tilted.As " level " only refers to for its direction relatively " vertical " more level, it is not this structure of expression
Must be fully horizontal, but can be slightly tilted.
In describing the invention in addition it is also necessary to explanation, unless otherwise clearly defined and limited, term " setting ",
" installation ", " being connected ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or one
Body ground connects；Can be to be mechanically connected or electrically connect；Can be joined directly together it is also possible to by intermediary indirect
It is connected, can be the connection of two element internals.For the ordinary skill in the art, can be with concrete condition understanding
State term concrete meaning in the present invention.
Refer to Fig. 1, the present embodiment provides a kind of R134a or 1234yf heat pump type air conditioning system 100, and it includes electric compressor
Machine 110, car external heat exchanger 120, four-way commutation zone regenerator gas-liquid separator 130, the first expansion valve 140 and evaporimeter 150.
In the present embodiment, described motor compressor 110 is used for producing the gaseous coolant of HTHP, and by described gas
State refrigerant inputs described car external heat exchanger 120.Done work by described motor compressor 110 and cold-producing medium is changed into HTHP
Gaseous coolant.For example, in compression process, motor compressor 110 sucks the cold-producing medium of the low-temp low-pressure in evaporimeter 150 exit
Gas, the gas that the refrigerant gas of described low-temp low-pressure are compressed into HTHP discharges this motor compressor 110.
In the present embodiment, described car external heat exchanger 120 is used for described gaseous coolant is done with heat exchange process, so that described gas
State refrigerant becomes the first liquid refrigerant of middle temperature high pressure, and described first liquid refrigerant is inputted described four-way commutation zone
Regenerator gas-liquid separator 130.The gaseous coolant of HTHP of motor compressor 110 input middle temperature will be formed by heat exchange
First liquid refrigerant of high pressure.I.e. in heat exchange, draw the gaseous coolant of the HTHP of described motor compressor 110 input
Heat so that the gaseous coolant of this HTHP heat reduce formed middle temperature high pressure the first liquid refrigerant.
In the present embodiment, described car external heat exchanger 120 using the blower fan carrying can improve heat exchange efficiency and its in
The heat exchanger tube in portion carries out heat exchange.Wherein, described car external heat exchanger 120 can vertically place wind structure using flat tube, is easy to defrost
When condensed water discharge.
In the present embodiment, described car external heat exchanger 120 is provided with temperature sensor 121 and controller 122.Described temperature passes
Sensor 121 is coupled with described controller 122, and described temperature sensor 121 is connected with described car external heat exchanger 120.
In the present embodiment, described temperature sensor 121 is used for detecting temperature during described car external heat exchanger 120 work,
When reaching preset temperature, just starting except the frost on car external heat exchanger 120, thus avoiding defrosting for a long time, affecting heating effect.
For example, preset temperature is 100 degree, and when the temperature of car external heat exchanger 120 exceedes preset temperature 100, temperature sensor 121 will be examined
The result surveyed is sent to controller 122, and whether controller 122 passes through to judge the temperature of temperature sensor 121 detection more than 100
Degree, the instruction of execution defrosting when more than 100 degree.
In the present embodiment, controller 122 is used for controlling temperature sensor 121 to work, and when temperature sensor 121 is examined
When testing temperature reaches preset temperature, the instruction of execution defrosting.
In the present embodiment, described four-way commutation zone regenerator gas-liquid separator 130 is used for described first liquid refrigeration
Agent inputs described first expansion valve 140.I.e. the first liquid refrigerant from the output of described car external heat exchanger 120 passes through described four-way
Commutation zone regenerator gas-liquid separator 130 enters the first expansion valve 140.In the process, described four-way commutation zone regenerator gas
Liquid/gas separator 130 is equivalent to as a transmission pipeline, will flow into the first of this four-way commutation zone regenerator gas-liquid separator 130
Liquid refrigerant inputs the first expansion valve 140.
In the present embodiment, described first expansion valve 140 is used for for described first liquid refrigerant doing reducing pressure by regulating flow process,
So that described first liquid refrigerant becomes the second liquid refrigerant of low-temp low-pressure.I.e. described first expansion valve 140 will be from four
First liquid refrigerant of logical commutation zone regenerator gas-liquid separator 130 input carries out reducing pressure by regulating flow process, that is, in reducing pressure by regulating flow
During process, the first higher liquid refrigerant liquid of temperature and pressure pass through the first expansion valve 140 after volume can become big, pressure and
Temperature also can drastically decline, thus forming vaporific or fine drop second refrigerant, and the second liquid refrigerant is arranged
Go out the first expansion valve 140.
In the present embodiment, the first expansion valve 140 can be electromagnetic expanding valve.
In the present embodiment, described evaporimeter 150 is used for described second liquid refrigerant heat absorption, so that described second liquid
State cold-producing medium forms low temperature, the 3rd gaseous refrigerant of low pressure.Described in entering when the first expansion valve 140 input second refrigerant
During evaporimeter 150, because described second refrigerant is the cold-producing medium that vaporific person is fine drop state, when described second refrigerant
When entering evaporimeter 150, when therefore, second refrigerant boiling point is far below the internal temperature of evaporimeter 150, thus second is freezed
Agent liquid evaporation becomes gas to form low temperature, the 3rd gaseous refrigerant of low pressure.And around a large amount of absorptions in evaporation process
Heat, then the 3rd cold-producing medium of low-temp low-pressure enter in vapour form in four-way commutation zone regenerator gas-liquid separator 130 again,
3rd cold-producing medium is carried out by gas-liquid separation by four-way commutation zone regenerator gas-liquid separator 130, will institute in the 3rd cold-producing medium
The some refrigerant containing gaseous state and liquid carrying is separated, and finally gaseous 3rd cold-producing medium is inputted electronic pressure
Contracting machine 110.
Refer to Fig. 2, in the present embodiment, R134a or 1234yf heat pump type air conditioning system 100 also includes stop valve 160 and exists
The gaseous coolant input car external heat exchanger 120 of the HTHP for exporting described motor compressor 110 during refrigeration.Wherein,
When heating, described stop valve 160 does not work, that is, be closed.
Refer to Fig. 3, in the present embodiment, described R134a or 1234yf heat pump type air conditioning system 100 also includes plate-type heat-exchange
Device 170, the second expansion valve 180, regenerator 190, warm air heater 210, water pump 220 and hydro-thermal PTC230.
In the present embodiment, described plate type heat exchanger 170 is used for hot water circuit, that is, in heating operations, described board-like changes
The water of the low temperature of entrance is heated by hot device 170.In kind of refrigeration cycle, described plate type heat exchanger 170 is used for described electronic pressure
The gaseous coolant input stop valve 160 of the HTHP of contracting machine 110 output.
In the present embodiment, described second expansion valve 180 is closed in refrigeration, in heating operations, described
Second expansion valve 180 is used for middle temperature, high pressure, liquid refrigerant are done reducing pressure by regulating flow and processed, so that described middle temperature, high pressure, liquid
Cold-producing medium becomes the second liquid refrigerant of low-temp low-pressure.I.e. described second expansion valve 180 will input from plate type heat exchanger 170
Middle temperature, high pressure, liquid refrigerant carry out reducing pressure by regulating flow process, that is, when reducing pressure by regulating flow is processed, the higher middle temperature of temperature and pressure,
After high pressure, liquid refrigerant pass through the second expansion valve 180, volume can become big, and pressure and temperature also can drastically decline, thus being formed
The second refrigerant of vaporific or fine drop, and the second liquid refrigerant is discharged the second expansion valve 180.
In the present embodiment, the second expansion valve 180 can be electromagnetic expanding valve.
In the present embodiment, in the refrigerant circulation work when being heated, described regenerator 190 is used for cold to low temperature
Matchmaker is heated, and improves the temperature that refrigerant returns motor compressor 110.Will be from four-way commutation zone regenerator gas-liquid separator 130
The refrigerant of input is heated, to improve the temperature flowing into this regenerator 190.In refrigeration, described regenerator 190 is used for four
The gaseous refrigerant input motor compressor 110 of logical commutation zone regenerator gas-liquid separator 130 input.
In the present embodiment, described regenerator 190 can be made up of the high-power electric appliance of automobile itself.Pass through big work(
The refrigerant that the waste heat of rate electrical equipment inputs to four-way commutation zone regenerator gas-liquid separator 130 heats, thus improve inflow should
The temperature of regenerator 190.
In the present embodiment, described warm air heater 210 is used for carrying out heat exchange, by the water of high temperature when heating with the external world
Become the water of low temperature.
In the present embodiment, described water pump 220 is used for driving hot water in plate type heat exchanger 170 to be circulated.
In this embodiment, it is preferred that, described water pump 220 is electronic water pump, by water pump 220 is preferably electronic water
Pump, such that it is able to carry out the precise control of discharge according to water outlet or leaving air temp, and then reaches the effect of energy-conservation.
In the present embodiment, described hydro-thermal PTC230 (Positive Temperature Coefficient, positive temperature
Coefficient) for carrying out heat control according to pre-conditioned, for example, using this hydro-thermal in the case of car load heating and defrosting deficiency
PTC230, also can use when battery heats simultaneously, and wherein, hydro-thermal PTC230 is using PWM (Pulse Width
Modulation, pulsewidth modulation) it is controlled, carry out the control of power output by extraneous signal.
In the present embodiment, the first expansion valve 140, evaporimeter 150 collectively form HVAC with warm air heater 210
(Heating, Ventilation and Air Conditioning, heating ventilation and air adjustment) assembly.By should
HVAC assembly is consistent with traditional HVAC assembly, and that is, HVAC assembly structure changes less such that it is able to effectively reduce main frame
Factory and the development cost of supplier, reduce development risk, shorten the construction cycle.
Refer to Fig. 4, the present invention provides a kind of control method, methods described includes：
Step S401：Described motor compressor produces the gaseous coolant of HTHP, will be described for the input of described gaseous coolant
Car external heat exchanger.
Step S402：Described car external heat exchanger does heat exchange and processes to described gaseous coolant, so that described gaseous coolant becomes
First liquid refrigerant of middle temperature high pressure, described first liquid refrigerant is inputted described four-way commutation zone regenerator gas-liquid separation
Device.
Step S403：Described four-way commutation zone regenerator gas-liquid separator is by described first liquid refrigerant input described the
One expansion valve.
Step S404：Described first liquid refrigerant is done reducing pressure by regulating flow and processes by described first expansion valve, so that described the
One liquid refrigerant becomes the second liquid refrigerant of low-temp low-pressure.
Step S405：Described evaporimeter is to described second liquid refrigerant heat absorption, so that described second liquid refrigeration dosage form
Become low temperature, the 3rd gaseous refrigerant of low pressure.
Step S406：Described 3rd gaseous state that described evaporimeter is inputted by described four-way commutation zone regenerator gas-liquid separator
The gaseous state carrying in cold-producing medium is separated with the refrigerant air-liquid of liquid.
Wherein, the gaseous state carrying in described 3rd gaseous refrigerant and liquid refer to described 3rd gaseous refrigerant from evaporation
When device enters four-way commutation zone regenerator gas-liquid separator, may occur in described 3rd gaseous refrigerant in this process
Liquefaction phenomenon, thus forming liquid, so that described 3rd gaseous refrigerant enters four-way commutation zone regenerator gas-liquid separation
The cold-producing medium of gaseous state and liquid is carried during device.
The operation principle of R134a or 1234yf heat pump type air conditioning system 100：Referring once again to Fig. 1, wherein, in refrigeration, should
R134a or 1234yf heat pump type air conditioning system 100 produces the gaseous coolant of HTHP by motor compressor 110, and by gaseous state
Refrigerant inputs described car external heat exchanger 120；By car external heat exchanger 120, described gaseous coolant is done with heat exchange again to process, so that institute
State the first liquid refrigerant that gaseous coolant becomes middle temperature high pressure, and described first liquid refrigerant is inputted described four-way and change
To band regenerator gas-liquid separator 130, hence into the first expansion valve 140；By the first expansion valve 140 by the first liquid refrigeration
Agent is done reducing pressure by regulating flow and is processed, so that described first liquid refrigerant becomes the second liquid refrigerant of low-temp low-pressure, so that evaporation
Device 150 is to the second liquid refrigerant heat-soak treatment；By evaporimeter 150 so that described second liquid refrigerant forms low temperature, low
Then 3rd gaseous refrigerant is turned again to four-way commutation zone backheat from evaporimeter 150 output by the 3rd gaseous refrigerant of pressure
Device gas-liquid separator 130；By four-way commutation zone regenerator gas-liquid separator 130 by the 3rd gaseous refrigerant and the second liquid system
Cryogen gas-liquid separation, thus by the gaseous refrigerant input motor compressor 110 after separation, and then complete kind of refrigeration cycle.And
When carrying out kind of refrigeration cycle, demisting can also be carried out by the cold air producing, by cold air, in-car air is cooled to and remove
Temperature needed for mist, thus realize the effect of demisting, to enable a driver to safe driving.
Wherein, in the present embodiment, this R134a or 1234yf heat pump type air conditioning system 100 can using R134a (1,1,1,
2- HFC-134a) or 1234yf (2,3,3,3- tetrafluoropropene) as cold-producing medium.By this R134a or 1234yf heat pump air conditioner
System 100, can lift the refrigeration of R134a or 1234yf cold-producing medium effectively.
Refer to Fig. 3, in the present embodiment, when heating, also include refrigerant circulation and water route heat cycles.Wherein, exist
During refrigerant circulation, motor compressor 110 produces the gaseous coolant of HTHP, and gaseous coolant is inputted plate type heat exchanger 170；
Heat exchange is carried out by plate type heat exchanger 170, thus high pressure gaseous refrigerant is become middle temperature, high pressure, liquid refrigerant；Its
In, close stop valve 160, middle temperature, high pressure, liquid refrigerant are inputted the second expansion valve 180, is entered by the second expansion valve 180
Row throttle operation, produces the liquid refrigerant of low-temp low-pressure, and the liquid refrigerant of low-temp low-pressure is inputted car external heat exchanger 120
In, and produce the cold-producing medium of low-temp low-pressure liquid, by the cold-producing medium input four-way commutation zone backheat of the low-temp low-pressure liquid producing
In device gas-liquid separator 130, commutated and gas-liquid separation by four-way commutation zone regenerator gas-liquid separator 130, will be separated
In cold-producing medium input regenerator 190 afterwards, and carry out heat exchange process, improve four-way commutation zone regenerator gas-liquid separator 130 defeated
The temperature of the cold-producing medium entering, and will process after cold-producing medium input motor compressor 110 in.When carrying out water route heat cycles,
Water pump 220 works, and drives the hot water in plate type heat exchanger 170 to be circulated, hot water enters hydro-thermal PTC230 by water pump 220
In, after hydro-thermal PTC230, high-temperature-hot-water enters warm air heater 210, and warm air heater 210 is by carrying out heat friendship with the external world
Change, the water that the water of high temperature is become low temperature enters plate type heat exchanger 170, thus being realized with refrigerant circulation by water route heat cycles
Heat circulation.
In sum, the present invention provides a kind of R134a or 1234yf heat pump type air conditioning system 100 and control method, this R134a
Or 1234yf heat pump type air conditioning system 100 produces the gaseous coolant of HTHP by motor compressor 110 and gaseous coolant is defeated
Enter described car external heat exchanger 120, then by car external heat exchanger 120, described gaseous coolant done with heat exchange to process, so that described gaseous state
Refrigerant becomes the first liquid refrigerant of middle temperature high pressure, and described for described first liquid refrigerant input four-way commutation is taken back
First liquid refrigerant, hence into the first expansion valve 140, is saved by hot device gas-liquid separator 130 by the first expansion valve 140
Stream step-down is processed, so that described first liquid refrigerant becomes the second liquid refrigerant of low-temp low-pressure, so that evaporimeter 150 is right
Second liquid refrigerant heat-soak treatment, so that described second liquid refrigerant forms low temperature, the 3rd gaseous refrigerant of low pressure, so
Afterwards the 3rd gaseous refrigerant is turned again to four-way commutation zone regenerator gas-liquid separator 130 from evaporimeter 150 output, by four
Logical commutation zone regenerator gas-liquid separator 130 by the 3rd gaseous refrigerant and the second liquid refrigerant gas-liquid separation, thus will divide
From after gaseous refrigerant input motor compressor 110, and then complete kind of refrigeration cycle and improve this R134a or 1234yf heat pump
The utilization rate of air-conditioning system 100 and refrigeration.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, made any repair
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (10)
1. a kind of R134a or 1234yf heat pump type air conditioning system is it is characterised in that include：Motor compressor, car external heat exchanger,
Outside one expansion valve, four-way commutation zone regenerator gas-liquid separator and evaporimeter, the output end of described motor compressor and described car
The input of heat exchanger connects, and the of the output end of described car external heat exchanger and described four-way commutation zone regenerator gas-liquid separator
One input connection, the first output end of described four-way commutation zone regenerator gas-liquid separator and the input of described first expansion valve
End connects, and the output end of described first expansion valve is connected with the input of described evaporimeter, the output end of described evaporimeter and institute
The second input stating four-way commutation zone regenerator gas-liquid separator connects, described four-way commutation zone regenerator gas-liquid separator
Second output end is connected with the input of described motor compressor；
Described motor compressor is used for producing the gaseous coolant of HTHP, and described gaseous coolant is inputted the outer heat exchange of described car
Device；
Described car external heat exchanger is used for described gaseous coolant being done with heat exchange process, so that described gaseous coolant becomes middle temperature high pressure
First liquid refrigerant, described first liquid refrigerant is inputted described four-way commutation zone regenerator gas-liquid separator；
Described four-way commutation zone regenerator gas-liquid separator is used for for described first liquid refrigerant inputting described first expansion valve；
Described first expansion valve is used for for described first liquid refrigerant doing reducing pressure by regulating flow process, so that described first liquid refrigeration
Agent becomes the second liquid refrigerant of low-temp low-pressure；
Described evaporimeter is used for described second liquid refrigerant heat absorption, so that described second liquid refrigerant forms low temperature, low
3rd gaseous refrigerant of pressure；
Described four-way commutation zone regenerator gas-liquid separator is additionally operable to described 3rd gaseous refrigerant of described evaporimeter input
In the gaseous state that carries separate with the refrigerant air-liquid of liquid.
2. R134a or 1234yf heat pump type air conditioning system according to claim 1 is it is characterised in that also include stop valve, institute
The input stating stop valve is connected with the output end of described motor compressor, the outer heat exchange with described car of the output end of described stop valve
The input of device connects；
Described stop valve is used for for described gaseous coolant inputting described car external heat exchanger.
3. R134a or 1234yf heat pump type air conditioning system according to claim 1 is it is characterised in that also include the second expansion
Valve, the input of described second expansion valve is connected with the output end of described motor compressor, the output end of described second expansion valve
It is connected with the input of described car external heat exchanger.
4. R134a or 1234yf heat pump type air conditioning system according to claim 3 is it is characterised in that also include regenerator, institute
The input stating regenerator is connected with the second output end of described four-way commutation zone regenerator gas-liquid separator, described regenerator
Output end is connected with the input of described motor compressor.
5. R134a or 1234yf heat pump type air conditioning system according to claim 4 is it is characterised in that also include plate-type heat-exchange
Device, the first input end of described plate type heat exchanger is connected with the output end of described motor compressor, and the of described plate type heat exchanger
One output end is connected with the input of described second expansion valve.
6. R134a or 1234yf heat pump type air conditioning system according to claim 5 is it is characterised in that also including water pump and warming up
Wind heater, the second output end of described plate type heat exchanger is connected with the input of described water pump, the output end of described water pump with
The output end of described warm air heater connects, the second input of the output end of described warm air heater and described plate type heat exchanger
Connect.
7. R134a or 1234yf heat pump type air conditioning system according to claim 6 is it is characterised in that also include hydro-thermal PTC,
The input of described hydro-thermal PTC is connected with the output end of described water pump, the output end of described hydro-thermal PTC and described warm air heater
Input connect；
Described hydro-thermal PTC is used for carrying out heat control according to external command.
8. R134a or 1234yf heat pump type air conditioning system according to claim 6 is it is characterised in that described water pump is electronics
Water pump；
Described electronic water pump is used for carrying out the precise control of the output flow of described electronic water pump according to water outlet or leaving air temp.
9. R134a or 1234yf heat pump type air conditioning system according to claim 1 is it is characterised in that described car external heat exchanger
It is provided with the temperature sensor of temperature and the controller for detecting described car external heat exchanger, described controller and described temperature
Sensor couples；
Described temperature sensor is used for detecting the operating temperature of described car external heat exchanger.
10. a kind of control method is it is characterised in that be applied to the system described in any one of claim 1-9, methods described bag
Include：
Described motor compressor produces the gaseous coolant of HTHP, and described gaseous coolant is inputted described car external heat exchanger；
Described car external heat exchanger does heat exchange and processes to described gaseous coolant, so that described gaseous coolant becomes the first of middle temperature high pressure
Liquid refrigerant, described first liquid refrigerant is inputted described four-way commutation zone regenerator gas-liquid separator；
Described first liquid refrigerant is inputted described first expansion valve by described four-way commutation zone regenerator gas-liquid separator；
Described first liquid refrigerant is done reducing pressure by regulating flow and processes by described first expansion valve, so that described first liquid refrigerant becomes
Become the second liquid refrigerant of low-temp low-pressure；
Described evaporimeter absorbs heat to described second liquid refrigerant, so that described second liquid refrigerant formation low temperature, low pressure
3rd gaseous refrigerant；
Carry in described 3rd gaseous refrigerant that described evaporimeter is inputted by described four-way commutation zone regenerator gas-liquid separator
Gaseous state separate with the refrigerant air-liquid of liquid.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610900636.0A CN106394181A (en) | 2016-10-17 | 2016-10-17 | R134a or 1234yf heat pump air-conditioning system and control method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610900636.0A CN106394181A (en) | 2016-10-17 | 2016-10-17 | R134a or 1234yf heat pump air-conditioning system and control method |
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| Publication Number | Publication Date |
|---|---|
| CN106394181A true CN106394181A (en) | 2017-02-15 |
Family
ID=58011779
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| CN201610900636.0A Pending CN106394181A (en) | 2016-10-17 | 2016-10-17 | R134a or 1234yf heat pump air-conditioning system and control method |
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