CN107664364A - Double temperature district refrigerator van refrigeration systems - Google Patents
Double temperature district refrigerator van refrigeration systems Download PDFInfo
- Publication number
- CN107664364A CN107664364A CN201710876691.5A CN201710876691A CN107664364A CN 107664364 A CN107664364 A CN 107664364A CN 201710876691 A CN201710876691 A CN 201710876691A CN 107664364 A CN107664364 A CN 107664364A
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- China
- Prior art keywords
- evaporator
- compressor
- gas
- working medium
- refrigeration
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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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B5/00—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity
- F25B5/04—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity arranged in series
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
- F25B47/02—Defrosting cycles
Abstract
The present invention provides a kind of double temperature district refrigerator van refrigeration systems,The working medium that non-azeotrope refrigerant in double temperature district refrigerator van refrigeration systems is differed by two kinds of boiling points mixes,Double temperature district refrigerator van refrigeration systems provided by the invention,Using in feeding compressor after the working medium mixing for differing boiling point,And the working medium of different boiling is cooled down respectively by condenser,Freezed corresponding to being sent into the liquid refrigerant after by separation in evaporator,Reach and two positions are freezed,Realize the purpose of dual temperature area refrigeration,And the evaporator for passing through different functions can be respectively that air-conditioning and refrigeration or dual temperature refrigeration provide the double flash evaporation temperature to match,Dual temperature demand can not be met or even if can realize dual temperature evaporation but the technical problem not saved by increasing evaporating pressure regulating valve by solving existing refrigeration system,The non-isothermal heat exchange of cyclic process can be realized,Realize non-isothermal refrigeration,Reduce the irreversible heat transfer loss caused by different transfer of heat.
Description
Technical field
The present invention relates to refrigerator car refrigeration technology field, particularly a kind of double temperature district refrigerator van refrigeration systems.
Background technology
Existing refrigerator car refrigeration system is mostly single evaporator refrigeration system, and this refrigeration system can not meet have dual temperature cold
Hide desired occasion.With the improvement of people's living standards, need the refrigerator car of the even more temperature refrigerations of dual temperature.In order to driver
There is provided a comfortable driving environment, it is desirable to which driver's cabin will also have air-conditioning.For large-scale refrigerator car, can set two sets it is single
Refrigeration system, meet refrigeration and driver's cabin air-conditioning needs respectively.But existing middle-size and small-size refrigerator car system is due to installing space
Limitation, it is difficult to set two sets of single refrigeration systems, and drive two evaporations using using a compressor in the prior art
The system of device, but be mostly double to realize in the rear side of A/C evaporator or high-temperature region evaporator installation evaporating pressure regulating valve
Evaporating temperature, this portion of energy after evaporating pressure regulating valve reducing pressure by regulating flow fails to make full use of, and makes the air-breathing of compressor
Pressure reduces, and the pressure ratio increase of kind of refrigeration cycle, energy consumption necessarily increases, and is not reaching to the purpose of energy-conservation..
The content of the invention
In order to solve the above-mentioned technical problem, a kind of working medium using different boiling is provided, in the compression of a compressor
The different double temperature district refrigerator van refrigeration systems for entering in different evaporators the refrigeration for carrying out different warm areas of boiling point are utilized afterwards.
A kind of double temperature district refrigerator van refrigeration systems, the non-azeotrope refrigerant in double temperature district refrigerator van refrigeration systems is by N kinds
The working medium that boiling point differs mixes, including compressor, N-1 single-stage working medium isolating construction, N-1 one-level evaporator and
One secondary evaporimeter, all single-stage working medium isolating constructions are sequentially connected in series and connected with the exhaust outlet of the compressor, and
Each single-stage working medium isolating construction connects with after the one-level evaporator series with the air entry of the compressor
Low boiling working fluid passage is formed, the single-stage working medium isolating construction farthest apart from the exhaust outlet of the compressor is also with described two
Connect to form higher boiling working medium passage with the air entry of the compressor after level evaporator series.
Each single-stage working medium isolating construction includes a condenser and a gas-liquid separator, apart from the compression
The entrance of the condenser of the nearest single-stage working medium isolating construction of the exhaust outlet of machine connects with the exhaust outlet of the compressor
Logical, the outlet of the condenser connects with the entrance of the gas-liquid separator, the gas vent of the gas-liquid separator with it is next
The entrance connection of the entrance or the secondary evaporimeter of the condenser of the single-stage working medium isolating construction of level, the gas-liquid separation
The liquid outlet of device connects with the entrance of the corresponding one-level evaporator.
The liquid outlet of the gas-liquid separator of each single-stage working medium isolating construction and the corresponding one-level evaporator
Between be provided with throttling arrangement.
Also include at least one multi-channel heat exchanger, the gas-liquid separator of at least one single-stage working medium isolating construction
Gas vent and/or liquid outlet connection corresponding with the passage of at least one multi-channel heat exchanger.
The liquid outlet of the gas-liquid separator of at least one single-stage working medium isolating construction is exchanged heat by the multichannel
The passage of device connects to form increasing enthalpy passage with the gas supplementing opening of the compressor.
The exhaust outlet of the compressor, the secondary evaporimeter and the air entry of the compressor, which connect to be formed to defrost, to be led to
Road.
Air-breathing gas-liquid separator is additionally provided with the air entry of the compressor, all single-stage working medium isolating constructions are equal
Connected with the entrance of the air-breathing gas-liquid separator.
The one-level evaporator is A/C evaporator or refrigeration evaporator.
Preferably, the non-azeotrope refrigerant is mixed by two kinds of different working medium of boiling point, double temperature district refrigerator van systems
Cooling system includes compressor, condenser, gas-liquid separator, the first evaporator, the second evaporator and a triple channel heat exchanger, institute
State the exporting of compressor, the condenser and the gas-liquid separator are sequentially communicated, the gas vent of the gas-liquid separator, institute
The air entry for stating the tie point of triple channel heat exchanger, second evaporator and the compressor is sequentially communicated to form low boiling
Working medium passage, the liquid outlet of the gas-liquid separator, first evaporator, the triple channel heat exchanger the second branch road and
The air entry of the compressor is sequentially communicated to form higher boiling working medium passage, the liquid outlet of the gas-liquid separator, described three
3rd branch road of channel heat exchanger and the gas supplementing opening of the compressor are sequentially communicated to form increasing enthalpy passage.
First throttle device is provided between the liquid outlet of the gas-liquid separator and first evaporator；Described three
Second throttling device is provided between the tie point of channel heat exchanger and second evaporator；The liquid of the gas-liquid separator
Body exports and is provided with the 3rd throttling arrangement on the 3rd branch road with the triple channel heat exchanger.
The air entry of the exhaust outlet of the compressor, second evaporator and the compressor is sequentially communicated to form second
Evaporator defrosting channel.
Second solenoid valve is provided between the exhaust outlet of the compressor and second evaporator.
The first magnetic valve is provided between the exhaust outlet of the compressor and the condenser.
The air entry of the exhaust outlet of the compressor, the first evaporator and the compressor is sequentially communicated to form the first evaporation
Device defrosting channel.
The 3rd magnetic valve is provided between the entrance of the exhaust outlet of the compressor and first evaporator.
Air-breathing gas-liquid separator, the low boiling working fluid passage and the height boiling are provided with the air entry of the compressor
Entrance of the point working medium passage with the air-breathing gas-liquid separator connects.
The working medium that the air entry for ensureing to enter compressor is arranged on the air-breathing gas-liquid separator is gaseous working medium
Heater.
First evaporator is A/C evaporator or refrigeration evaporator；Second evaporator is refrigeration evaporator.
Double temperature district refrigerator van refrigeration systems provided by the invention, it is sent into after being mixed using a variety of working medium for differing boiling point
In compressor, and the working medium of different boiling is cooled down respectively by multiple condensers, and then make the working medium point of different boiling
Leave, be sent into the liquid refrigerant after by separation corresponding to freezed in evaporator, by the setting of the position to evaporator,
Reach and multiple positions are freezed, realize the purpose of multi-temperature zone refrigeration, and can be distinguished by the evaporator of different functions
The multistage evaporation temperature to match is provided for air-conditioning and refrigeration or dual temperature refrigeration, how warm need can not be met by solving existing refrigeration system
Ask or even if more temperature evaporations but the technical problem not saved can be realized by increasing evaporating pressure regulating valve, utilize non-azeotrope refrigerant
Attribute, can realize that (temperature of non-azeotrope refrigerant gradually rises in evaporation process, and cold for the non-isothermal heat exchange of cyclic process
Temperature then gradually reduces during solidifying), non-isothermal refrigeration is realized, reduces the irreversible heat transfer damage caused by different transfer of heat
Lose.
Brief description of the drawings
Fig. 1 is the structural representation of double temperature district refrigerator van refrigeration systems provided by the invention；
Fig. 2 is another structural representation of double temperature district refrigerator van refrigeration systems provided by the invention；
In figure：
1st, compressor；2nd, condenser；3rd, gas-liquid separator；4th, the first evaporator；5th, the second evaporator；6th, triple channel exchanges heat
Device；7th, air-breathing gas-liquid separator；61st, tie point；62nd, the second branch road；63rd, the 3rd branch road.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, below in conjunction with drawings and Examples pair
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only used for explaining the present invention, not
For limiting the present invention.
Double temperature district refrigerator van refrigeration systems as depicted in figs. 1 and 2, it is non-common in double temperature district refrigerator van refrigeration systems
The working medium that boiling refrigerant is differed by N kind boiling points mixes, including compressor 1, N-1 single-stage working medium isolating construction, N-1
One-level evaporator and a secondary evaporimeter, all single-stage working medium isolating constructions be sequentially connected in series and with the compressor 1
Exhaust outlet connect, and each single-stage working medium isolating construction with after the one-level evaporator series with the compressor
1 air entry connects to form low boiling working fluid passage, the single-stage working medium separation farthest apart from the exhaust outlet of the compressor 1
Structure connects to form higher boiling working medium passage after also connecting with the secondary evaporimeter with the air entry of the compressor 1, different
The working medium of boiling point is individually separated after the corresponding single-stage working medium isolating construction, and then separated liquid refrigerant enters
Refrigeration process is carried out in evaporator corresponding to entering, finally all working medium is back to institute by the air entry of the compressor 1
State in compressor 1, complete circulation.
Each single-stage working medium isolating construction includes a condenser and a gas-liquid separator, apart from the compression
The exhaust outlet of the entrance and the compressor 1 of the condenser of the nearest single-stage working medium isolating construction of the exhaust outlet of machine 1
Connection, the outlet of the condenser connect with the entrance of the gas-liquid separator, and the gas vent of the gas-liquid separator is with
The entrance connection of the entrance or the secondary evaporimeter of the condenser of the single-stage working medium isolating construction of one-level, the gas-liquid point
Connected from the liquid outlet of device with the entrance of the corresponding one-level evaporator, corresponding working medium is condensed into liquid by the condenser
State, and gas-liquid separation is carried out by the corresponding gas-liquid separator, the gas-liquid separator delivers to the liquid refrigerant after separation
Freezed in corresponding evaporator, the gaseous working medium after separation is delivered to next stage the single-stage working medium isolating construction it is cold
In condenser or deliver in the secondary evaporimeter and freezed after throttling.
The liquid outlet of the gas-liquid separator of each single-stage working medium isolating construction and the corresponding one-level evaporator
Between be provided with throttling arrangement.
Also include at least one multi-channel heat exchanger, the gas-liquid separator of at least one single-stage working medium isolating construction
Gas vent and/or liquid outlet connection corresponding with the passage of at least one multi-channel heat exchanger；At least one list
Passage and the compressor 1 of the liquid outlet of the gas-liquid separator of level working medium isolating construction by the multi-channel heat exchanger
Gas supplementing opening connects to form increasing enthalpy passage.The quantity of wherein described multi-channel heat exchanger can be one, or it is multiple, in it
The quantity summation of the passage in portion is up to N bars, all working medium by the one-level evaporator and/or all is used to be compressor
1 carry out Gas-supplying enthalpy-increasing working medium and/or all gas vents by the gas-liquid separator working medium can selectivity
By corresponding passage, and heat exchange is carried out in the multi-channel heat exchanger, ensure the work for entering the secondary heat exchanger
Matter can carry out refrigeration work after the secondary heat exchanger is entered, it is also ensured that enter the work of the gas supplementing opening of compressor 1
Matter is superheated vapor, can effectively play a part of increasing enthalpy.
Exhaust outlet, the secondary evaporimeter of the compressor 1 connect to form two level steaming with the air entry of the compressor 1
Send out device defrosting channel.
Air-breathing gas-liquid separator, all single-stage working medium isolating constructions are additionally provided with the air entry of the compressor 1
Entrance with the air-breathing gas-liquid separator connects, and the working medium that can ensure to enter the air entry of the compressor 1 is gas
State working medium, prevent liquid refrigerant from causing the damage of compressor 1 after entering compressor 1.
The one-level evaporator is A/C evaporator or refrigeration evaporator.
Preferably, the non-azeotrope refrigerant is mixed by two kinds of different working medium of boiling point, double temperature district refrigerator van systems
Cooling system includes compressor 1, condenser 2, gas-liquid separator 3, the first evaporator 4, the second evaporator 5 and a triple channel heat exchange
Device 6, the exporting of the compressor 1, the condenser 2 and the gas-liquid separator 3 are sequentially communicated, the gas-liquid separator 3
Gas vent, the tie point 61 of the triple channel heat exchanger 6, second evaporator 5 and the compressor 1 air entry according to
Secondary connection forms low boiling working fluid passage, the liquid outlet of the gas-liquid separator 3, first evaporator 4, the triple channel
Second branch road 62 of heat exchanger 6 and the air entry of the compressor 1 are sequentially communicated to form higher boiling working medium passage, the gas-liquid point
Liquid outlet, the 3rd branch road 63 of the triple channel heat exchanger 6 and the gas supplementing opening of the compressor 1 from device 3 are sequentially communicated shape
Into increasing enthalpy passage.
First throttle device is provided between the liquid outlet of the gas-liquid separator 3 and first evaporator 4；It is described
Second throttling device is provided between the tie point 61 of triple channel heat exchanger 6 and second evaporator 5；The gas-liquid separation
The liquid outlet of device 3 on the 3rd branch road 63 of the triple channel heat exchanger 6 with being provided with the 3rd throttling arrangement.
The air entry of the exhaust outlet of the compressor 1, second evaporator 5 and the compressor 1 is sequentially communicated to be formed
Second evaporator defrosting channel.
Second solenoid valve is provided between the exhaust outlet of the compressor 1 and second evaporator 5.
The first magnetic valve is provided between the exhaust outlet and the condenser 2 of the compressor 1.
The air entry of the exhaust outlet of the compressor 1, the first evaporator 4 and the compressor 1 is sequentially communicated to form first
Evaporator defrosting channel.
The 3rd magnetic valve is provided between the entrance of the exhaust outlet of the compressor 1 and first evaporator 4.
Air-breathing gas-liquid separator 7, the low boiling working fluid passage and the height are provided with the air entry of the compressor 1
Entrance of the boiling point working medium passage with the air-breathing gas-liquid separator 7 connects.
The working medium that the air entry for ensureing to enter compressor 1 is arranged on the air-breathing gas-liquid separator 7 is gaseous working medium
Heater.
First evaporator 4 is A/C evaporator or refrigeration evaporator；Second evaporator 5 is refrigeration evaporator.
Embodiment 1
When non-azeotrope refrigerant is mixed into by two kinds of different working medium of boiling point, and first evaporator 4 is A/C evaporator,
When second evaporator 5 is refrigeration evaporator：
Refrigeration mode：
The first magnetic valve is opened during cooling system, second solenoid valve is closed, first throttle device, second throttling device, the
Three throttling arrangements open regulation according to control；Non-azeotropic mixed working medium is discharged after the compression of compressor 1 through the exhaust outlet of compressor 1
The overheated gas of HTHP, the condensation heat release of condenser 2 is entered after the first magnetic valve；Due to two kinds in non-azeotropic mixed working medium
The boiling point of component working medium is different, and the working medium of a large amount of high boiling components and the working medium of a small amount of low boiling component are first coagulated in condenser 2
Form liquid, and most of low boiling component working medium and a small amount of high boiling component working medium still keep gaseous state, non-azeotrope mixing
Working medium is separated into gas-liquid two-way into gas-liquid separator 3, and the liquid non-azeotrope of high boiling component working medium is largely rich in fluid path
Mixed working fluid, evaporation endothermic in A/C evaporator is entered after first throttle device reducing pressure by regulating flow and is freezed, then into triple channel
Further absorbed heat in heat exchanger 6；Fluid path small portion is rich in the non-azeotropic mixed working medium of high boiling component working medium, through the 3rd throttling
Enter after becoming superheated vapor into evaporation endothermic in triple channel heat exchanger 6 after device reducing pressure by regulating flow through the gas supplementing opening of compressor 1 and press
In contracting machine 1, air injection enthalpy-increasing is realized；Gas circuit is rich in the gaseous state non-azeotropic mixed working medium of low boiling component working medium, is exchanged heat in triple channel
Exothermic condensation is then into refrigeration evaporator sweat cooling, to be steamed from air-conditioning through second throttle reducing pressure by regulating flow after liquid in device 6
The working medium that hair device and refrigeration evaporator come out is after mixing through the air-breathing of compressor 1 after the gas-liquid separation of air-breathing gas-liquid separator 7
Mouth is sucked by compressor 1, compressed, so as to complete entirely to circulate.
Defrosting mode：
When refrigeration evaporator needs defrosting, second solenoid valve is opened, and the first closed electromagnetic valve, first throttle device close
Close, second throttling device close, the 3rd throttling arrangement close, compressor 1 be vented through second solenoid valve enter refrigeration evaporator heat
Gas defrost, after returned to through air-breathing gas-liquid separator 7 in compressor 1, complete circulation.
Embodiment 2
When non-azeotrope refrigerant is mixed into by two kinds of different working medium of boiling point, and the evaporator 5 of first evaporator 4 and second
When being refrigeration evaporator：
System uses non-azeotropic mixed working medium, and the first evaporator 4 and the second evaporator 5 are distinguished under identical evaporating pressure
The double flash evaporation temperature to match is provided for two chill spaces, to realize dual temperature demand.
Refrigeration mode：
First magnetic valve is opened, second solenoid valve is closed, the 3rd closed electromagnetic valve, first throttle device, the second throttling dress
Put, the 3rd throttling arrangement according to control open regulation, non-azeotropic mixed working medium through compressor 1 compression after, through the exhaust outlet of compressor 1
The overheated gas of HTHP is discharged, condenser 2 is entered after the first magnetic valve and condenses heat release, due in non-azeotropic mixed working medium
The boiling point of two kinds of component working medium is different, the working medium of the working medium of a large amount of high boiling components and a small amount of low boiling component in condenser 2
Liquid is first condensed into, and most of low boiling component working medium and a small amount of high boiling component working medium still keep gaseous state, non-azeotrope
Mixed working fluid is separated into gas-liquid two-way into gas-liquid separator 3, and the liquid that high boiling component working medium is largely rich in fluid path is non-
Azeotropic mixed working medium, evaporation endothermic in the first evaporator 4 is entered after first throttle device reducing pressure by regulating flow and is freezed, then into three
Further absorbed heat in channel heat exchanger 6；Fluid path small portion is rich in the non-azeotropic mixed working medium of high boiling component working medium, through the 3rd
Enter evaporation endothermic in triple channel heat exchanger 6 after throttling arrangement reducing pressure by regulating flow after becoming superheated vapor through the gas supplementing opening of compressor 1 to enter
Enter in compressor 1, realize air injection enthalpy-increasing；Gas circuit is rich in the gaseous state non-azeotropic mixed working medium of low boiling component working medium, in triple channel
In heat exchanger 6 exothermic condensation be after liquid through second throttle reducing pressure by regulating flow, then into the sweat cooling of the second evaporator 5, from
The working medium that two refrigeration evaporators come out is after mixing through the air entry of compressor 1 after the gas-liquid separation of air-breathing gas-liquid separator 7
Sucked, compress by compressor 1, so as to complete entirely to circulate.
Defrosting mode：
When the first evaporator 4 and the second evaporator 5 are required to defrosting, second solenoid valve and the 3rd magnetic valve are opened, the
One closed electromagnetic valve, first throttle device are closed, second throttling device is closed, the 3rd throttling arrangement is closed, a part of compressor 1
Exhaust enters in the second evaporator 5 through second solenoid valve carries out hot gas defrosting, and another part compressor 1 is vented through the second electromagnetism
Valve and the 3rd magnetic valve, which enter in the first evaporator 4, carries out hot gas defrosting.The mixing of working medium working medium is come out from two refrigeration evaporators
After through air-breathing gas-liquid separator 7 return to compressor.
Embodiment described above only expresses the several embodiments of the present invention, and its description is more specific and detailed, but simultaneously
Therefore the limitation to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that for one of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention
Protect scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (10)
- A kind of 1. double temperature district refrigerator van refrigeration systems, it is characterised in that：Non-azeotrope refrigerant in double temperature zone refrigerating systems by The working medium that two kinds of boiling points differ mixes, and including compressor (1), condenser (2), gas-liquid separator (3), the first evaporation Device (4), the second evaporator (5) and a triple channel heat exchanger (6), the exporting of the compressor (1), the condenser (2) and The gas-liquid separator (3) is sequentially communicated, the gas vent of the gas-liquid separator (3), the of the triple channel heat exchanger (6) The air entry of one branch road (61), second evaporator (5) and the compressor (1), which is sequentially communicated, to be formed low boiling working fluid and leads to Road, the liquid outlet of the gas-liquid separator (3), first evaporator (4), second of the triple channel heat exchanger (6) The air entry of road (62) and the compressor (1) is sequentially communicated to form higher boiling working medium passage, the liquid of the gas-liquid separator (3) The gas supplementing opening of body outlet, the 3rd branch road (63) of the triple channel heat exchanger (6) and the compressor (1) is sequentially communicated to form increasing Enthalpy passage.
- 2. double temperature district refrigerator van refrigeration systems according to claim 1, it is characterised in that：The gas-liquid separator (3) First throttle device is provided between liquid outlet and first evaporator (4)；First of the triple channel heat exchanger (6) Second throttling device is provided between road (61) and second evaporator (5)；The liquid outlet of the gas-liquid separator (3) with The 3rd throttling arrangement is provided with 3rd branch road (63) of the triple channel heat exchanger (6).
- 3. double temperature district refrigerator van refrigeration systems according to claim 1, it is characterised in that：The exhaust of the compressor (1) The air entry of mouth, second evaporator (5) and the compressor (1) is sequentially communicated to form the second evaporator (5) defrosting channel.
- 4. double temperature district refrigerator van refrigeration systems according to claim 3, it is characterised in that：The exhaust of the compressor (1) Second solenoid valve is provided between mouth and second evaporator (5).
- 5. double temperature district refrigerator van refrigeration systems according to claim 1, it is characterised in that：The exhaust of the compressor (1) The first magnetic valve is provided between mouth and the condenser (2).
- 6. double temperature district refrigerator van refrigeration systems according to claim 1, it is characterised in that：The exhaust of the compressor (1) The air entry of mouth, the first evaporator (4) and the compressor (1) is sequentially communicated to form the first evaporator (4) defrosting channel.
- 7. double temperature district refrigerator van refrigeration systems according to claim 6, it is characterised in that：The exhaust of the compressor (1) The 3rd magnetic valve is provided between mouth and the entrance of first evaporator (4).
- 8. double temperature district refrigerator van refrigeration systems according to claim 1, it is characterised in that：The air-breathing of the compressor (1) Be provided with air-breathing gas-liquid separator (7) at mouthful, the low boiling working fluid passage and the higher boiling working medium passage with the suction The entrance connection of gas gas-liquid separator (7).
- 9. double temperature district refrigerator van refrigeration systems according to claim 8, it is characterised in that：The air-breathing gas-liquid separator (7) working medium that the air entry for ensureing to enter compressor (1) is arranged on is the heater of gaseous working medium.
- 10. double temperature district refrigerator van refrigeration systems according to claim 1, it is characterised in that：First evaporator (4) is A/C evaporator or refrigeration evaporator；Second evaporator (5) is refrigeration evaporator.
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| CN201710876691.5A CN107664364A (en) | 2017-09-25 | 2017-09-25 | Double temperature district refrigerator van refrigeration systems |
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| CN201710876691.5A CN107664364A (en) | 2017-09-25 | 2017-09-25 | Double temperature district refrigerator van refrigeration systems |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108895736A (en) * | 2018-04-02 | 2018-11-27 | 合肥华凌股份有限公司 | A kind of supercooling circulatory system control method, the supercooling circulatory system and refrigerator |
| CN109737641A (en) * | 2018-12-26 | 2019-05-10 | 西安交通大学 | A kind of air injection enthalpy-increasing heat pump circulating system using zeotrope with subcooler |
| CN112033037A (en) * | 2020-08-24 | 2020-12-04 | 珠海格力电器股份有限公司 | Non-azeotropic refrigerant self-overlapping air conditioning system, control method and air conditioning unit |
| CN113654282A (en) * | 2021-09-01 | 2021-11-16 | 深圳市派沃新能源科技股份有限公司 | Air source heat pump defrosting system and defrosting judgment method |
| CN114739026A (en) * | 2022-03-22 | 2022-07-12 | 澳柯玛股份有限公司 | Mixed refrigerant refrigerating system for display cabinet |
| WO2024002177A1 (en) * | 2022-06-29 | 2024-01-04 | 莱尔德热系统(深圳)有限公司 | Refrigeration system having accurate temperature control |
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| CN109737641A (en) * | 2018-12-26 | 2019-05-10 | 西安交通大学 | A kind of air injection enthalpy-increasing heat pump circulating system using zeotrope with subcooler |
| CN112033037A (en) * | 2020-08-24 | 2020-12-04 | 珠海格力电器股份有限公司 | Non-azeotropic refrigerant self-overlapping air conditioning system, control method and air conditioning unit |
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| CN113654282B (en) * | 2021-09-01 | 2024-03-19 | 深圳市派沃新能源科技股份有限公司 | Defrosting system of air source heat pump and defrosting judgment method |
| CN114739026A (en) * | 2022-03-22 | 2022-07-12 | 澳柯玛股份有限公司 | Mixed refrigerant refrigerating system for display cabinet |
| CN114739026B (en) * | 2022-03-22 | 2023-10-13 | 澳柯玛股份有限公司 | Mixed refrigerant refrigerating system for display cabinet |
| WO2024002177A1 (en) * | 2022-06-29 | 2024-01-04 | 莱尔德热系统(深圳)有限公司 | Refrigeration system having accurate temperature control |
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