CN207113323U - A kind of heat pump type air conditioning system based on compressor air-discharging bypass defrosting - Google Patents
A kind of heat pump type air conditioning system based on compressor air-discharging bypass defrosting Download PDFInfo
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- CN207113323U CN207113323U CN201720670490.5U CN201720670490U CN207113323U CN 207113323 U CN207113323 U CN 207113323U CN 201720670490 U CN201720670490 U CN 201720670490U CN 207113323 U CN207113323 U CN 207113323U
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Abstract
The utility model provides a kind of heat pump type air conditioning system based on compressor air-discharging bypass defrosting.The system is defrosted using compressor air-discharging to Wind-cooling type evaporator, reach evaporator defrosting and improve the purpose of coefficient of performance, the defects of reverse defrosting method in the prior art is overcome again simultaneously, the fluctuation of the interruption and temperature of heating is avoided, improves comfort level.
Description
Technical field
The invention belongs to refrigeration heat pump system technical field, and in particular to a kind of compressor hot gas bypass defrosting technology and system
Cold and hot pumping system.
Background technology
For air conditioner with air-source heat pump group, under heating condition, the source pump coefficient of performance is with the drop of environment temperature
Low and decay, when ambient temperature is reduced to -20 DEG C, it is difficult that heat is absorbed from environment, and this is primarily due to air-conditioning
Unit is low in outdoor temperature and during with running under certain humidity condition, and outdoor Wind-cooling type finned-tube evaporator runs one section
Frost layer can be produced after time.The generation of frost layer causes finned tube exchanger spacing of fin to reduce, and causes outdoor circulating wind resistance to increase
Greatly, air circulation reduces, while because frosting causes the heat transfer resistance of Wind-cooling type finned-tube evaporator to increase, heat transfer coefficient reduces,
It result under identical operating mode, the heat transfer temperature difference of refrigerant and air need to be increased, ultimately result in Wind-cooling type finned-tube evaporator and make
The evaporating pressure and evaporating temperature of cryogen reduce, and are further exacerbated by the frosting degree of Wind-cooling type finned tube exchanger, cause to compress
Shaft power increases and the coefficient of performance declines.
At present, use reverse defrosting technology for the heat pump air conditioner unit of Wind-cooling type finned-tube evaporator more.Inversely melting
When white, the fluctuation of the interruption and temperature of heating can be caused, causes comfortableness to reduce.
Therefore, for the heat pump air conditioner unit of Wind-cooling type finned-tube evaporator, explore one kind under worst cold case defrosting and
The new technology and method of raising system evaporating pressure and evaporating temperature, this has important reality meaning in heat pump heating field
Justice.
The content of the invention
To solve problems of the prior art, i.e., under winter heating's operating mode, Wind-cooling type finned tube exchanger is as steaming
When sending out device, when meeting low temperature and high wet cooling condition, the meeting frosting of its fin, cause system evaporating pressure, heating capacity and systematic function system
Number reduces.
It is an object of the invention to provide a kind of heat pump type air conditioning system based on compressor air-discharging bypass defrosting.The system utilizes
Compressor air-discharging defrosts to Wind-cooling type evaporator, reaches evaporator defrosting and improves the purpose of coefficient of performance, simultaneously
The defects of reverse defrosting method in the prior art is overcome again, is avoided the fluctuation of the interruption and temperature of heating, is improved easypro
Appropriateness.
The technical proposal of the invention is realized in this way：
A kind of heat pump air conditioner based on compressor air-discharging bypass defrosting, including it is compressor 1, oil eliminator 2, magnetic valve 3, cold
Condenser 4, condenser fan 4-1, high-pressure reservoir 5, electric expansion valve 6, Wind-cooling type finned-tube evaporator 7, gas-liquid separator 8,
Bypass circulation magnetic valve 9 and 12, major loop magnetic valve 10 and 11, and Wind-cooling type finned-tube evaporator 7 include main coil 7-1,
Defrosting coil pipe 7-2, Wind-cooling type finned-tube evaporator blower fan 7-3；
Compressor 1 connects oil eliminator 2, magnetic valve 3 respectively, and oil eliminator 2 connects the magnetic valve 3, bypassed back respectively
Way solenoid valve 9, major loop magnetic valve 10, while the magnetic valve 3, the compressor 1 and the series connection of the oil eliminator 2 are formed back
Road, the magnetic valve 3 are controlled according to the requirement of the system and opened, and the lubrication oil circulation for controlling the oil eliminator 2 to separate is returned
To compressor 1, the major loop magnetic valve 10 connects condenser 4, while condenser fan 4-1 is set close to the condenser 4,
The condenser 4 connects major loop magnetic valve 11, and the major loop magnetic valve 11, bypass circulation magnetic valve 12 connect high pressure liquid storage
Device 5, the high-pressure reservoir 5 connect electric expansion valve 6, and the electric expansion valve 6 connects the master of Wind-cooling type finned-tube evaporator 7
Coil pipe 7-1, the main coil 7-1 connections gas-liquid separator 8, the gas-liquid separator 8 connects the compressor 1；The bypass
The defrosting coil pipe 7-2 of the other end of circuit electromagnetic valve 12 connection Wind-cooling type finned-tube evaporator 7, while Wind-cooling type finned-tube evaporator
Blower fan 7-3 is set close to the defrosting coil pipe 7-2, the defrosting coil pipe 7-2 connections bypass circulation magnetic valve 9.
It is preferred that the defrosting coil pipe 7-2 and main coil 7-1 is arranged at intervals；Master described in further preferred every two row
Defrosting coil pipe 7-2 described in one row is set between pipe 7-1, evaporator defrosting speed is improved with this.
It is preferred that the setting of the defrosting coil pipe 7-2 and the main coil 7-1 quantity is multigroup, set according to heat exchange area.
A kind of heat pump type air conditioning system based on compressor air-discharging bypass defrosting is when without defrosting operating mode, compressor 1
Exhaust through oil eliminator 2, major loop magnetic valve 10 enter condenser 4, exhaust bypass circuit electromagnetic valve 9 and 12 close, realize
Heating of the system without defrosting.
During defrosting operating mode, the exhaust of compressor 1 enters 10 through oil eliminator 2, major loop magnetic valve and enters condenser 4, continues to make
Heat, at the same time, bypass circulation magnetic valve 9 and 12 are opened, and the high-temperature exhaust air of Partial shrinkage machine 1 enters Wind-cooling type evaporator 7
Defrosting coil pipe 7-2 carries out defrosting.
The invention can be achieved without compressor shutdown carry out electric defrosting and reverse defrosting caused by temperature fluctuation and relax
The reduction of adaptive.At the same time, because part high-temperature high-pressure refrigerant gas enters evaporator defrosting coil pipe, can preferably solve to steam
Send out the problem of pressure coefficient of performance in heating caused by factor such as low reduces.
The features of the present invention and beneficial effect are：
（1）A kind of Wind-cooling type evaporator in heat pump type air conditioning system based on compressor air-discharging bypass defrosting is by two groups of coil pipes
Composition, it is respectively used to absorb amount of heat and defrosting.
（2）Defrosting system is formed by compressor, oil eliminator, magnetic valve, Wind-cooling type evaporator etc., utilizes compressor air-discharging
The high temperature and high pressure gas of bypass circulation realize the defrosting to Wind-cooling type finned-tube evaporator, improve coefficient of performance.
（3）Without reverse defrosting room continuous heat supply can be achieved, comfortableness and energy conservation characteristic are obvious in the present invention.
Brief description of the drawings
Fig. 1 is a kind of system diagram of the heat pump air conditioner based on compressor air-discharging bypass defrosting of embodiment 1.
Marginal data：1st, compressor；2nd, oil eliminator；3rd, magnetic valve；4th, condenser, including condenser fan 4-1；
5th, high-pressure reservoir；6th, electric expansion valve；7th, Wind-cooling type finned-tube evaporator, wherein, Wind-cooling type finned-tube evaporator 7 includes master
Coil pipe 7-1, defrosting coil pipe 7-2, Wind-cooling type finned-tube evaporator blower fan 7-3；8th, gas-liquid separator；9th, 12 be respectively to bypass back
Way solenoid valve；10th, 11 be respectively major loop magnetic valve.
Embodiment
It is further described below in conjunction with the accompanying drawings and by specific embodiment to the structural principle of the present invention.But this implementation
Example be it is narrative, and nonrestrictive, therefore, it is not limited to invention which is intended to be protected.
Embodiment 1
A kind of heat pump air conditioner based on compressor air-discharging bypass defrosting, including it is compressor 1, oil eliminator 2, magnetic valve 3, cold
Condenser 4, condenser fan 4-1, high-pressure reservoir 5, electric expansion valve 6, Wind-cooling type finned-tube evaporator 7, gas-liquid separator 8,
Bypass circulation magnetic valve 9 and 12, major loop magnetic valve 10 and 11, and Wind-cooling type finned-tube evaporator 7 include main coil 7-1,
Defrosting coil pipe 7-2, Wind-cooling type finned-tube evaporator blower fan 7-3；
Compressor 1 connects oil eliminator 2, magnetic valve 3 respectively, and oil eliminator 2 connects the magnetic valve 3, bypassed back respectively
Way solenoid valve 9, major loop magnetic valve 10, while the magnetic valve 3, the compressor 1 and the series connection of the oil eliminator 2 are formed back
Road, the magnetic valve 3 require to open according to the control of system, and the lubrication oil circulation for controlling the oil eliminator 2 to separate returns to pressure
Contracting machine 1, the major loop magnetic valve 10 connects condenser 4, while condenser fan 4-1 is set close to the condenser 4, described
Condenser 4 connects major loop magnetic valve 11, and the major loop magnetic valve 11, bypass circulation magnetic valve 12 connect high pressure liquid storage respectively
Device 5, the high-pressure reservoir 5 connect electric expansion valve 6, and the electric expansion valve 6 connects the master of Wind-cooling type finned-tube evaporator 7
Coil pipe 7-1, the main coil 7-1 connections gas-liquid separator 8, the gas-liquid separator 8 connects the compressor 1；The bypass
Circuit electromagnetic valve 12 connects the defrosting coil pipe 7-2 of Wind-cooling type finned-tube evaporator 7, while Wind-cooling type finned-tube evaporator blower fan 7-
3 are set close to the defrosting coil pipe 7-2, the defrosting coil pipe 7-2 connections bypass circulation magnetic valve 9；Meanwhile the defrosting
The coil pipe 7-2 and main coil 7-1 is arranged at intervals.
The present invention lays particular emphasis on winter heating's operating mode Wind-cooling type finned-tube evaporator defrosting and improves coefficient of performance, so
Illustrated for heating condition.
The set system includes heat pump type air conditioning system and defrosting loop.Compressor 1, oil eliminator 2, major loop magnetic valve 10,
Condenser 4, major loop magnetic valve 11, high-pressure reservoir 5, electric expansion valve 6, main coil 7-1, gas-liquid separator 8 are contacted successively
The heat pump type air conditioning system of composition.Compressor 1, oil eliminator 2, bypass circulation magnetic valve 9, defrosting coil pipe 7-2, bypass circulation electromagnetism
After valve 12 is contacted successively, the bypass circulation magnetic valve 12 connects high-pressure reservoir 5 and converged with the heat pump type air conditioning system, forms
Defrosting loop.
In use,
Compressor air-discharging bypass defrosting heat pump type air conditioning system heating, without defrosting operating condition under, refrigeration working medium is in main coil
Enter gas-liquid separator 8 after heat absorption vaporization in 7-1, refrigeration working medium steam is after compressor 1 improves pressure, through the He of oil eliminator 2
Major loop magnetic valve 10, is discharged into the exothermic condensation of condenser 4, and condensed liquid refrigerating working medium enters through major loop magnetic valve 11
High-pressure reservoir 5, the main coil 7-1 is then re-circulated into after the reducing pressure by regulating flow of electric expansion valve 6, completes heat pump and follow
Ring.During this, bypass circulation magnetic valve 9 and 12 is closed.
Under heat pump type air conditioning system heating, defrosting operating mode in compressor air-discharging bypass defrosting, refrigeration working medium is in master all the way
Enter gas-liquid separator 8 after heat absorption vaporization in pipe 7-1, refrigeration working medium steam is after compressor 1 improves pressure, through oil eliminator 2
With major loop magnetic valve 10, the exothermic condensation of condenser 4 is discharged into, condensed liquid refrigerating working medium is entered through major loop magnetic valve 11
Enter high-pressure reservoir 5, the main coil 7-1 is then re-circulated into after the reducing pressure by regulating flow of electric expansion valve 6, complete heat pump air conditioner
The circulation of system.
At the same time, bypass circulation magnetic valve 9 and 12 is opened.HTHP refrigeration work after compressor 1 improves pressure
Matter gas, bypass circulation magnetic valve 9 is stimulated the menstrual flow into defrosting coil pipe 7-2 through 2 latter roadside of oil eliminator, is steamed in Wind-cooling type finned tube
Condensation heat release in device 7 is sent out, is changed into highly pressurised liquid, by bypass circulation magnetic valve 12, into high-pressure reservoir 5.This process, because of wind
Pass through high temperature and high pressure steam rapid frost melting and raising system evaporating pressure in cold mould finned-tube evaporator 7.
Refrigeration working medium described in this example is R22 refrigerants or R134a refrigerants.
The preferred embodiment of the present invention described in detail above, but be not restricted to that specific thin in above-mentioned embodiment
Section, in the range of the technology design of the present invention, a variety of equivalents can be carried out to technical scheme, these equivalent changes
Change and belong to protection scope of the present invention.
Claims (3)
1. a kind of heat pump air conditioner based on compressor air-discharging bypass defrosting, it is characterised in that including compressor（1）, oil eliminator
（2）, magnetic valve（3）, condenser（4）, condenser fan（4-1）, high-pressure reservoir（5）, electric expansion valve（6）, Wind-cooling type wing
Piece pipe evaporator（7）, gas-liquid separator（8）, bypass circulation magnetic valve（9、12）, major loop magnetic valve（10、11）, and it is air-cooled
Type finned-tube evaporator（7）Including main coil（7-1）, defrosting coil pipe（7-2）, Wind-cooling type finned-tube evaporator blower fan（7-3）；
Compressor（1）Oil eliminator is connected respectively（2）, magnetic valve（3）, oil eliminator（2）The magnetic valve is connected respectively（3）、
Bypass circulation magnetic valve（9）, major loop magnetic valve（10）, while the magnetic valve（3）, the compressor（1）And the oil
From device（2）Series connection forms loop, the major loop magnetic valve（10）Connect condenser（4）, while condenser fan（4-1）It is close
The condenser（4）Set, the condenser（4）Connect major loop magnetic valve（11）, the major loop magnetic valve（11）, bypass
Circuit electromagnetic valve（12）Connect high-pressure reservoir（5）, the high-pressure reservoir（5）Connect electric expansion valve（6）, the electronics is swollen
Swollen valve（6）Connect Wind-cooling type finned-tube evaporator（7）Main coil（7-1）, the main coil（7-1）Connect gas-liquid separator
（8）, the gas-liquid separator（8）Connect the compressor（1）；The bypass circulation magnetic valve（12）The other end connects Wind-cooling type
Finned-tube evaporator（7）Defrosting coil pipe（7-2）, while Wind-cooling type finned-tube evaporator blower fan（7-3）Close to the drip tray
Pipe（7-2）Set, the defrosting coil pipe（7-2）Connect the bypass circulation magnetic valve（9）.
2. a kind of heat pump air conditioner based on compressor air-discharging bypass defrosting according to claim 1, it is characterised in that described
Defrosting coil pipe（7-2）With the main coil（7-1）It is arranged at intervals.
3. a kind of heat pump air conditioner based on compressor air-discharging bypass defrosting according to claim 2, it is characterised in that every two
Arrange the main coil（7-1）Between defrosting coil pipe described in a row is set（7-2）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720670490.5U CN207113323U (en) | 2017-06-10 | 2017-06-10 | A kind of heat pump type air conditioning system based on compressor air-discharging bypass defrosting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720670490.5U CN207113323U (en) | 2017-06-10 | 2017-06-10 | A kind of heat pump type air conditioning system based on compressor air-discharging bypass defrosting |
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| Publication Number | Publication Date |
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| CN207113323U true CN207113323U (en) | 2018-03-16 |
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ID=61595046
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| CN201720670490.5U Active CN207113323U (en) | 2017-06-10 | 2017-06-10 | A kind of heat pump type air conditioning system based on compressor air-discharging bypass defrosting |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107036349A (en) * | 2017-06-10 | 2017-08-11 | 烟台大学 | A kind of heat pump type air conditioning system based on compressor air-discharging bypass defrosting |
| CN108362040A (en) * | 2018-04-04 | 2018-08-03 | 北京卡林新能源技术有限公司 | A kind of net for air-source heat pump units of continuous heat supply |
| CN108362032A (en) * | 2018-04-04 | 2018-08-03 | 北京卡林新能源技术有限公司 | A kind of net for air-source heat pump units of continuous heat supply |
| CN108362041A (en) * | 2018-04-04 | 2018-08-03 | 北京卡林新能源技术有限公司 | A kind of net for air-source heat pump units of continuous heat supply |
| CN108387033A (en) * | 2018-04-04 | 2018-08-10 | 北京卡林新能源技术有限公司 | A kind of net for air-source heat pump units of continuous heat supply |
-
2017
- 2017-06-10 CN CN201720670490.5U patent/CN207113323U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107036349A (en) * | 2017-06-10 | 2017-08-11 | 烟台大学 | A kind of heat pump type air conditioning system based on compressor air-discharging bypass defrosting |
| CN108362040A (en) * | 2018-04-04 | 2018-08-03 | 北京卡林新能源技术有限公司 | A kind of net for air-source heat pump units of continuous heat supply |
| CN108362032A (en) * | 2018-04-04 | 2018-08-03 | 北京卡林新能源技术有限公司 | A kind of net for air-source heat pump units of continuous heat supply |
| CN108362041A (en) * | 2018-04-04 | 2018-08-03 | 北京卡林新能源技术有限公司 | A kind of net for air-source heat pump units of continuous heat supply |
| CN108387033A (en) * | 2018-04-04 | 2018-08-10 | 北京卡林新能源技术有限公司 | A kind of net for air-source heat pump units of continuous heat supply |
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