CN107883495A - Air-conditioning system - Google Patents
Air-conditioning system Download PDFInfo
- Publication number
- CN107883495A CN107883495A CN201711183215.1A CN201711183215A CN107883495A CN 107883495 A CN107883495 A CN 107883495A CN 201711183215 A CN201711183215 A CN 201711183215A CN 107883495 A CN107883495 A CN 107883495A
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- air
- conditioning system
- refrigerant
- compressor
- 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.)
- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0003—Exclusively-fluid systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
-
- 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
- F25B1/00—Compression machines, plants or systems with non-reversible cycle
-
- 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
- F25B41/31—Expansion valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
- F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
- F28F21/081—Heat exchange elements made from metals or metal alloys
- F28F21/084—Heat exchange elements made from metals or metal alloys from aluminium or aluminium alloys
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
- F28F9/04—Arrangements for sealing elements into header boxes or end plates
- F28F9/16—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling
- F28F9/18—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by welding
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
The invention belongs to automobile air conditioning technology field, disclose a kind of air-conditioning system, compressor, condenser, expansion valve and evaporator including being sequentially connected and being formed loop, one external heat exchanger is installed between the exhaust outlet of the compressor and the entrance of the condenser, the external heat exchanger includes heat exchanger tube and inner chamber, the water inlet adjunction cooling water source of the heat exchanger tube, delivery port connects air, refrigerant inlet connection exhaust outlet of compressor on the inner chamber, the refrigerant outlet connection condenser inlet on inner chamber.The present invention is by installing external heat exchanger, system condensing temperature is reduced, the degree of supercooling of refrigerant is added, reduces the compression ratio of compressor, then compressor power consumption is reduced, add the flow of air-conditioning system refrigerant, so as to reach raising air-conditioning system refrigerating capacity and COP, and extend the purpose of compressor service life.
Description
Technical field
The invention belongs to air-conditioning technical field, particularly a kind of air-conditioning system.
Background technology
In order to improve air-conditioning system COP and refrigerating capacity, prior art mainly has 3 kinds of methods to realize, within air-conditioning systems
Three kinds of methods can individually be used or used simultaneously.First, replacing fixed displacement compressor with variable compressor, become discharge capacity compression
Function adjusts compressor displacement according to the size of thermic load, avoids system shock caused by the cut-out of fixed displacement compressor clutch
To engine life and the influence of oil consumption；Second, inner heat exchanger backheat technology is used in system circulation loop；Third, with electricity
Sub- expansion valve substitutes heating power expansion valve, and it can accurately control refrigeration system refrigerant flow, air-conditioning system is reached optimal COP
Value
Referring to accompanying drawing 1, existing air-conditioning system includes being sequentially connected by high-voltage tube 12 and forming the compressor 11 in loop, condensed
Device 13, expansion valve 14 and evaporator 16, install inner heat exchanger 15 in this loop, and inner heat exchanger 15 is by condenser 13
The port of export of the port of export and evaporator 16 carry out heat exchange.Although this system is also improved air-conditioning system COP and refrigerating capacity,
But the low-pressure section in system circulation loop is improve only, high-pressure section especially blast pipe also has improvement space not utilize.
The content of the invention
In order to solve the above-mentioned technical problem, the present invention provides a kind of air-conditioning system, by installing external heat exchanger, reduces
System condensing temperature, add the degree of supercooling of refrigerant, reduce the compression ratio of compressor, then reducing compressor horsepower
Consumption, the flow of air-conditioning system refrigerant is added, so as to reach raising air-conditioning system refrigerating capacity and COP, and extend compression
Machine service life.
The present invention adopts the technical scheme that：
A kind of air-conditioning system, it is characterized in that, including be sequentially connected and form compressor, condenser, expansion valve and the evaporation in loop
Device, an external heat exchanger, the outside heat are installed between the exhaust outlet of the compressor and the entrance of the condenser
Exchanger includes heat exchanger tube and inner chamber, the water inlet adjunction cooling water source of the heat exchanger tube, delivery port connection air, the inner chamber
On refrigerant inlet connection exhaust outlet of compressor, the refrigerant outlet connection condenser inlet on inner chamber.
Further, the water inlet of the external heat exchanger is located at bottom, and delivery port is located at top, the outside heat exchange
The water inlet connecting water pipe of device to cooling water source, the cooling water source is higher than the delivery port of the external heat exchanger.
Further, the refrigerant inlet of the inner chamber is located at the top of inner chamber, and refrigerant outlet is located at the lower section of inner chamber.
Further, inner heat exchanger is installed in the loop, the inner heat exchanger there are four interfaces, connected respectively
The entrance of the outlet of condenser and the entrance of expansion valve, the outlet of expansion valve and compressor is connect, the inner heat exchanger will be cold
The port of export of condenser and the port of export of evaporator carry out heat exchange.
Further, the external heat exchanger includes a shell, and the enclosure is harmonica-shaped tube or helix tube, described
The both ends connecting interface pipe of helix tube, as the water inlet and delivery port of the external heat exchanger, the both ends of the shell connect
Connect refrigerant adapter, refrigerant inlet and refrigerant outlet as the external heat exchanger.
Further, the cooling water source is evaporator condensation water or external water source.
Further, the expansion valve is electric expansion valve.
Further, the material of the external heat exchanger is aluminium alloy, and is braze-welded structure.
Further, the housing is cylindrical housings, and the helix tube is formed by round tube or harmonica-shaped tube distortion.
The beneficial effects of the invention are as follows：
（1）Difference in height between cooling water and high-voltage tube makes cooling water be handed over by self gravitation from its exterior heat as power
In the connector inflow device of parallel operation, exterior space is flowed to full of the outlet after device from device top, refrigerant is from top
Connector enters inner chamber at the top of external heat exchanger, afterwards along inner chamber flow down, flows out to condensation from bottom discharge outlet afterwards
Device, heat exchange is completed in a device, after air-conditioning first time use, water has been expired in storage all the time in device；Because being stored in device
Water, also there is auxiliary heat dissipation effect during starting of air conditioner, improving COP and cooling system amount reduces starting torque, reduces carbon row
Put；
（2）Air-conditioning COP and cooling system amount are improved 2% or so, carbon emission amount is effectively reduced and improves relaxing for air-conditioning system
Adaptive energy, energy-saving purpose is reached.
Brief description of the drawings
Accompanying drawing 1 is the air-conditioning system principle schematic of prior art；
Accompanying drawing 2 is the principle schematic of the air-conditioning system of the present invention；
Accompanying drawing 3 is the structural representation of the air-conditioning system of the present invention；
Accompanying drawing 4 is the structural representation of external heat exchanger；
Accompanying drawing 5 is the pressure enthalpy compares figure of prior art and the present invention.
Label in accompanying drawing is respectively：
11. compressor；12. high-voltage tube；
13. condenser；14. expansion valve；
15. inner heat exchanger；16. evaporator；
17. external heat exchanger；18. water pipe；
701. cooling water inlets are taken over；702. shell；
703. helix tube；704. refrigerant outlet adapter；
705. coolant outlets are taken over；706. refrigerant inlets are taken over.
Embodiment
The embodiment of air-conditioning system of the present invention is elaborated below in conjunction with the accompanying drawings.
Referring to accompanying drawing 2,3, air-conditioning system of the invention includes being sequentially connected and forming compressor 11, the condenser in loop
13rd, electric expansion valve 14 and evaporator 16, an outside is installed between the exhaust outlet of compressor 11 and the entrance of condenser 13
Heat exchanger 17, external heat exchanger include heat exchanger tube and inner chamber, the water inlet adjunction cooling water source of heat exchanger tube, delivery port connection
Air, the refrigerant inlet connection exhaust outlet of compressor 11 on inner chamber, the refrigerant outlet connection entrance of condenser 13 on inner chamber.
The water inlet of external heat exchanger 17 is located at bottom, and delivery port is located at top, the water inlet connecting water pipe of external heat exchanger 17
18 to cooling water source, and cooling water source is higher than the delivery port of external heat exchanger 17.The refrigerant inlet of inner chamber is located at the upper of inner chamber
Side, refrigerant outlet are located at the lower section of inner chamber.The condensed water of evaporator 16 directly may be used as cooling water source, by the water of connecting water pipe 18
Part is connected to the lower section of evaporator 16, you can realizes and receives condensed water.
In addition, same as the prior art, inner heat exchanger 15 is installed in the loop, inner heat exchanger 15 is by condenser
13 port of export carries out heat exchange with the port of export of evaporator 16.
The present invention is cooled using air-conditioning condensed water itself or external water source to the compressor exhaust pipe in air-conditioning system
Decompression is cooled down and finally improves air-conditioning system COP and refrigerating capacity, and faster, efficiently cool-down dehumidification is carried out to car room air to reach
A kind of air-conditioning system.
The air-conditioning system of the present invention has the compressor for being used for being compressed and convey to refrigerant, and it is air-conditioning system system
The power source of SAPMAC method, refrigerant compression is done work.The air-conditioning system has high temperature and high pressure gaseous refrigerant with entering inside it
Cooling water carry out heat exchange external heat exchanger,
With continued reference to accompanying drawing 4, there is cooling water to enter from bottom connector and discharged from top outlet inside external heat exchanger
Internal cooling aquaporin into air and the high temperature and high pressure gaseous refrigerant from compressor enter from top connector and from
Bottom discharge outlet is expelled to the internal refrigerant pass of condenser inlet.There is a circular shell 702 outside external heat exchanger,
Have inside shell 702 and spiral helicine helix tube 703, and the cooling water being connected with helix tube 703 are twisted into by harmonica-shaped tube or pipe
Entrance sleeve 701 and coolant outlet adapter 705, helix tube 703 are taken over cooling water inlet adapter 701 and coolant outlet
705 constitute the inner passage of cooling water.There is the refrigerant inlet adapter 706 being connected with shell 702 outside external heat exchanger
With refrigerant outlet adapter 704, spiral tube outer surface and the inwall of shell 702 and refrigerant inlet adapter 706 and refrigerant outlet
Adapter 704 forms the inner passage of refrigerant.
The cooling water of lower temperature carries out heat exchange, refrigeration in the outer surface of helix tube 703 with high temperature and high pressure gaseous refrigerant
Agent temperature reduces, and water temperature raises and takes away the heat of refrigerant；Helix tube 703 distorts curl, makes cooling water and refrigerant
Turbulent flow is formed in flowing, heat transfer effect is enhanced；In addition, cooling water flows, freezed from the bottom up in external heat exchanger
Agent is flowed and forms the reverse flow between refrigerant and cooling water from top to bottom, has obtained further carrying so as to exchange heat to imitate
It is high；Each component of external heat exchanger forms the part of an entirety, all aluminium alloys of material, air-tightness by welding
More preferably, refrigerant leakage rate is extremely low, meets requirement of the air-conditioning system to air-tightness.
The air-conditioning system of the present invention, which has, to be used to radiate to the high-temperature high-pressure refrigerant from external heat exchanger to air
Condenser, heat of secondary high-temperature high-pressure refrigerant from external heat exchanger is distributed into air by it；The present invention
Air-conditioning system have be used for future condenser medium temperature high pressure liquid refrigerant be transported to electric expansion valve, will be swollen from electronics
The low-temp low-pressure overheat gaseous refrigerant that swollen valve comes out is transmitted back to compressor, is simultaneously from the medium temperature high-pressure liquid refrigeration of condenser
Agent carries out heat exchange with the low-temp low-pressure gaseous refrigerant come out after evaporation and heat-exchange from electric expansion valve inside it, and it will
Come after the refrigerant heat temperature raising of flash-pot to be back to compressor, the refrigerant of condenser in future supplies steaming after carrying out radiating and cooling
Send out device.
The air-conditioning system of the present invention, which has, to be used to throttle to the refrigerant for entering evaporator, is depressured, cold by sensing
Matchmaker's temperature and pressure carries out the electric expansion valve of accurate adjustment to cold medium flux, and it can freeze according to required heat load adjustment
Agent flux；The air-conditioning system of the present invention, which has, to be used to make refrigerant and will be exchanged heat between will being supplied to the air of interior,
So as to the evaporator cooled down to air.
Referring to accompanying drawing 5, air-conditioning system of the invention has the effectiveness for improving air-conditioning system refrigerating capacity and COP, the 3- in Fig. 5
5-7-2-3 be prior art pressure-enthalpy chart, its COP=(h3-h2)/(h5-h3)；3-4-6-8-1-3 is the pressure-enthalpy chart of the present invention,
Its COP=(h3-h1)/(h4-h3)；The Compressor Discharge Pressure that the present invention reduces is P5-P4, the increased refrigerating capacity of specific discharge is
h2-h1, because Compressor Discharge Pressure reduces, flow system flow also can accordingly increase, and incrementss are △ Q, the increase of system overall refrigerating effect
Measure and be（h2-h1）*△Q；In addition, it is clear that COP values of the invention are more than the COP values of prior art.
The present invention can also be applied to central air-conditioning, track traffic air-conditioning, car air-conditioner etc. it is similar have condensed water produce or
The air-conditioning and refrigerating field of external water source.
It the above is only the preferred embodiment of the present invention, it is noted that for those skilled in the art,
Without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should be regarded as this hair
Bright protection domain.
Claims (9)
- A kind of 1. air-conditioning system, it is characterised in that：Including be sequentially connected and formed the compressor in loop, condenser, expansion valve and Evaporator, an external heat exchanger is installed between the exhaust outlet of the compressor and the entrance of the condenser, it is described outer Portion's heat exchanger includes heat exchanger tube and inner chamber, the water inlet adjunction cooling water source of the heat exchanger tube, and delivery port connects air, described Refrigerant inlet connection exhaust outlet of compressor on inner chamber, the refrigerant outlet connection condenser inlet on inner chamber.
- 2. air-conditioning system according to claim 1, it is characterised in that：The water inlet of the external heat exchanger is located at bottom Portion, delivery port are located at top, and water inlet connecting water pipe to cooling water source, the cooling water source of the external heat exchanger is higher than The delivery port of the external heat exchanger.
- 3. air-conditioning system according to claim 2, it is characterised in that：The refrigerant inlet of the inner chamber is located at the upper of inner chamber Side, refrigerant outlet are located at the lower section of inner chamber.
- 4. air-conditioning system according to any one of claim 1 to 3, it is characterised in that：In the loop inside installation Heat exchanger, the inner heat exchanger have four interfaces, connect the outlet of condenser and entrance, the expansion valve of expansion valve respectively Outlet and compressor entrance, the port of export of the port of export of condenser and evaporator carries out hot friendship by the inner heat exchanger Change.
- 5. air-conditioning system according to any one of claim 1 to 3, it is characterised in that：The external heat exchanger includes One shell, the enclosure are harmonica-shaped tube or helix tube, the both ends connecting interface pipe of the helix tube, as the outside The water inlet and delivery port of heat exchanger, the both ends connection refrigerant adapter of the shell, as the external heat exchanger Refrigerant inlet and refrigerant outlet.
- 6. air-conditioning system according to any one of claim 1 to 3, it is characterised in that：The cooling water source is evaporator Condensed water or external water source.
- 7. air-conditioning system according to any one of claim 1 to 3, it is characterised in that：The expansion valve is electronic expansion Valve.
- 8. air-conditioning system according to any one of claim 1 to 3, it is characterised in that：The material of the external heat exchanger Expect for aluminium alloy, and be braze-welded structure.
- 9. air-conditioning system according to claim 5, it is characterised in that：The housing is cylindrical housings, the helix tube Formed by round tube or harmonica-shaped tube distortion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711183215.1A CN107883495A (en) | 2017-11-23 | 2017-11-23 | Air-conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711183215.1A CN107883495A (en) | 2017-11-23 | 2017-11-23 | Air-conditioning system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107883495A true CN107883495A (en) | 2018-04-06 |
Family
ID=61774826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711183215.1A Withdrawn CN107883495A (en) | 2017-11-23 | 2017-11-23 | Air-conditioning system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107883495A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111811154A (en) * | 2020-07-21 | 2020-10-23 | 闻婧 | Air conditioner heat exchange system |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4353224A (en) * | 1980-10-16 | 1982-10-12 | Nippondenso Co., Ltd. | Evaporator |
| CN2443302Y (en) * | 2000-09-21 | 2001-08-15 | 丛旭日 | Double-polar heat pump type air conditioner |
| JP2007210376A (en) * | 2006-02-08 | 2007-08-23 | Sanden Corp | Vehicle air conditioner |
| CN200982764Y (en) * | 2006-12-09 | 2007-11-28 | 奇瑞汽车有限公司 | Automobile air conditioner |
| CN101825378A (en) * | 2009-03-05 | 2010-09-08 | 上海芙蓉实业有限公司 | Refrigerating system with exhaust cooling back-heating device |
| CN102095268A (en) * | 2011-03-02 | 2011-06-15 | 上海交通大学 | Propane refrigerant air conditioner with heat regenerator |
| CN102897000A (en) * | 2012-11-07 | 2013-01-30 | 奇瑞汽车股份有限公司 | Automobile air conditioning system and automobile |
| CN106414127A (en) * | 2014-01-22 | 2017-02-15 | 翰昂***株式会社 | Automotive air conditioning system |
| CN207555847U (en) * | 2017-11-23 | 2018-06-29 | 上海加冷松芝汽车空调股份有限公司 | Air-conditioning system |
-
2017
- 2017-11-23 CN CN201711183215.1A patent/CN107883495A/en not_active Withdrawn
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4353224A (en) * | 1980-10-16 | 1982-10-12 | Nippondenso Co., Ltd. | Evaporator |
| CN2443302Y (en) * | 2000-09-21 | 2001-08-15 | 丛旭日 | Double-polar heat pump type air conditioner |
| JP2007210376A (en) * | 2006-02-08 | 2007-08-23 | Sanden Corp | Vehicle air conditioner |
| CN200982764Y (en) * | 2006-12-09 | 2007-11-28 | 奇瑞汽车有限公司 | Automobile air conditioner |
| CN101825378A (en) * | 2009-03-05 | 2010-09-08 | 上海芙蓉实业有限公司 | Refrigerating system with exhaust cooling back-heating device |
| CN102095268A (en) * | 2011-03-02 | 2011-06-15 | 上海交通大学 | Propane refrigerant air conditioner with heat regenerator |
| CN102897000A (en) * | 2012-11-07 | 2013-01-30 | 奇瑞汽车股份有限公司 | Automobile air conditioning system and automobile |
| CN106414127A (en) * | 2014-01-22 | 2017-02-15 | 翰昂***株式会社 | Automotive air conditioning system |
| CN207555847U (en) * | 2017-11-23 | 2018-06-29 | 上海加冷松芝汽车空调股份有限公司 | Air-conditioning system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111811154A (en) * | 2020-07-21 | 2020-10-23 | 闻婧 | Air conditioner heat exchange system |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180406 |