CN105241115B - Both vapor compression sprays Combined Refrigeration Cycle device and method - Google Patents
Both vapor compression sprays Combined Refrigeration Cycle device and method Download PDFInfo
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- CN105241115B CN105241115B CN201510607996.7A CN201510607996A CN105241115B CN 105241115 B CN105241115 B CN 105241115B CN 201510607996 A CN201510607996 A CN 201510607996A CN 105241115 B CN105241115 B CN 105241115B
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Abstract
The present invention is a kind of both vapor compression injection Combined Refrigeration Cycle device and method of utilization refrigeration compressor exhaust sensible heat, and its part included has compressor, generator, condenser, choke valve, gas-liquid separator, evaporator, injector, liquid booster pump, fluid level controller, magnetic valve, pressure sensor etc..The superheated steam that the circulatory system is come out using refrigeration compressor exhaust outlet is come the condensed saturated liquid refrigerant that is pumped into heating and gasifying generator by supercharging, produce the saturated gas occurred under pressure, as the working steam through injector used in the flash gas of gas-liquid separator separates after injection throttling, because the flash gas produced after being throttled by choke valve is by gas-liquid separator separates, and condenser is entered by injector injection, entering evaporator in so avoiding flash gas prevents the limited heat exchange area of evaporator from being utilized very well, on the premise of identical refrigerating capacity, necessarily reduce the displacement of compressor, so as to reduce the wasted work of compressor.
Description
Technical field
The present invention relates to both vapor compression-injection coupling refrigeration circulating system that a kind of utilization refrigeration compressor is vented sensible heat,
The coefficient of heat transfer of evaporator can be effectively improved, compressor wasted work is reduced, so as to improve coefficient of refrigerating performance.
Background technology
Condensed device cools down condensed liquid refrigerant meeting shwoot outlet in throttling in conventional compression formula kind of refrigeration cycle
State refrigerant, this part gaseous refrigerant will not only produce cold after entering evaporator in evaporator, will also occupy evaporation
Device heat exchange area influences the evaporation of liquid refrigerant, so that evaporator heat exchange efficiency and refrigerating capacity are reduced, while this part does not have
There is the low-pressure gas for producing cold also to be sucked by compressor, increase the wasted work of compressor.
The present invention will be realized using compressor air-discharging sensible heat refrigeration compressor exhaust in generator indirect heating and gasifying by
Liquid booster pump is pressurized to the saturated liquid refrigerant occurred under pressure, produces the gas of higher pressure, after injection throttling
The working steam of the injector used in flash gas after gas-liquid separator separates, it is to avoid flashed vapour, which enters evaporator, makes steaming
The limited heat exchange area of hair device can not be utilized very well, meanwhile, it can obtain on the premise of identical refrigerating capacity, reduce compression
The displacement of machine, reduces the wasted work of compressor.Realize the system of both vapor compression-injection coupling using compressor air-discharging sensible heat
SAPMAC method.
The content of the invention
Technical problem：The purpose of the present invention is in view of the shortcomings of the prior art, to propose one kind using refrigeration compressor exhaust
The both vapor compression of sensible heat-injection Combined Refrigeration Cycle device and method, the system combines compressor air-discharging sensible heat and injector
Get up, simple using emitter construction, with low cost, movement-less part is reliable, suitable for any flow pattern including two phase flow
Under the advantages of use, the gaseous refrigerant that throttling is flashed neither is occupied the heat exchange area influence coefficient of heat transfer into evaporator,
Also it is not compressed machine suction increase compressor wasted work.Accomplish to effectively improve system on the basis of system complexity is not improved
Coefficient of refrigerating performance.
Technology contents：The present invention a kind of both vapor compression-injection Combined Refrigeration Cycle device be：The termination that goes out of compressor is steamed
The input of the output termination condenser of heat-exchange tube, cold in the input of heat-exchange tube in vapour generator, the steam generator
The output end of condenser point two-way, the first via connects the input of gas-liquid separator by choke valve, and the second tunnel passes through liquid booster pump
Connect the input of steam generator；The fluid output port of gas-liquid separator by evaporator connect compressor enter end；Gas-liquid separation
The gas output end of device point two-way, the first via connects the first input end of injector by the first magnetic valve, and the second tunnel passes through second
Magnetic valve connect compressor enter end；The gas output end of steam generator connects the second input of injector by the 3rd magnetic valve
End, the input of the output end condenser of injector.
The refrigerating and circulating method of both vapor compression-injection Combined Refrigeration Cycle device of the present invention is：This method utilizes refrigeration
The both vapor compression injection Combined Refrigeration Cycle of compressor air-discharging sensible heat, by controlling the keying of magnetic valve to realize refrigeration compressor
It is vented the indirect heating and gasifying in generator and the saturated liquid refrigerant occurred under pressure is pressurized to by liquid booster pump, produces hair
Saturated gas under raw pressure, the work through injector used in the flash gas of gas-liquid separator separates is steamed after being throttled as injection
Vapour.Avoid flashed vapour prevents the limited heat exchange area of evaporator from being utilized very well into evaporator, meanwhile, can be identical
Under the premise of refrigerating capacity, the displacement of compressor is reduced, the wasted work of compressor is reduced.
Using refrigeration compressor be vented sensible heat both vapor compression injection Combined Refrigeration Cycle method be：After condenser condensation
Saturated liquid refrigerant point two-way, enters gas-liquid separator by choke valve throttling all the way, the saturated liquid after separation enters
Evaporator, absorbs the heat of object to be cooled in evaporator and (state point a) is sucked by refrigerant by compressor, pressure after gasifying
Shorten into HTHP gas (state point b) enter generator cooling after (state point c) enter back into condenser condensation；Another road warp
Cross liquid booster pump supercharging to enter in generator, booster pump start and stop are controlled by fluid level controller, reach liquid in control generator
The purpose of body fluid position；
In system start-up phase, due to the liquid refrigerant (superheated steam that state point h) is discharged by compressor in generator
(state point b) heating and gasifyings need the regular hour to injector operating pressure, so temporarily first closing the 3rd magnetic valve.Now
Injector can not work because of no working steam, therefore close the first magnetic valve, open the second magnetic valve, make through gas-liquid
(state point g) is directly sucked flash gas after separator separation by compressor；
When generator and condenser pressure differential reach 0.3MPa, the second magnetic valve is closed, the first magnetic valve, the 3rd electricity is opened
Magnet valve, injector is started working.(state point g's flash distillation gaseous refrigerant come out from gas-liquid separator) boosts through injector injection
(m state points) enters condenser and condensed afterwards.
Beneficial effect：The superheated steam that the system is come out using refrigeration compressor exhaust outlet come in heating and gasifying generator by
The condensed saturated liquid refrigerant being pumped into is pressurized, the gas of higher pressure is produced, through gas-liquid point after being throttled as injection
The working steam of the flash gas separated from device.Because the flash gas produced after being throttled by choke valve is separated, and by
Injector injection enters condenser, in so avoiding flashed vapour enter evaporator prevent the limited heat exchange area of evaporator from
Utilized very well, meanwhile, on the premise of identical refrigerating capacity, the displacement of compressor is necessarily reduced, compressor is reduced
Wasted work；If on the premise of compressor displacement is constant, there is no flashed vapour part, the system of evaporator in the gas transmission of compressor
Cold energy power will be improved.Preresearch estimates can be obtained：If flash distillation tolerance accounts for the 10% of compressor displacement, using the invention system
SAPMAC method system will improve 10% compared with original system refrigerating capacity.
Brief description of the drawings
The present invention is further described with embodiment below in conjunction with the accompanying drawings.
Fig. 1 is both vapor compression-injection coupling refrigeration circulating system flow chart that sensible heat is vented using refrigeration compressor.
Wherein have：Compressor 1, generator 2, condenser 3, choke valve 4, gas-liquid separator 5, evaporator 6, injector 7, liquid
Body booster pump 8, fluid level controller 9, the first magnetic valve 10, the second magnetic valve 11, the 3rd magnetic valve 12, first pressure sensor
13rd, second pressure sensor 14；A, b, c, d, e, f, g, h, i, j, k, m are each state point.
Fig. 2 is both vapor compression-injection coupling refrigeration system circulation P-h figures that sensible heat is vented using refrigeration compressor.
Embodiment
The present invention a kind of utilization refrigeration compressor exhaust sensible heat both vapor compression-injection Combined Refrigeration Cycle device with it is general
Logical refrigeration system, which is compared, to be added：
The gas-liquid separator set for the gaseous refrigerant of shwoot after separating, throttling；
Booster pump for lifting liquid refrigerant pressure after condensation；
For induction generator liquid level and the fluid level controller of control booster pump start and stop；
For producing the steaming that higher pressure is set for the working steam that injector is run using compressor air-discharging sensible heat
Vapour generator；
The injector set for the gaseous refrigerant of shwoot after injection throttling；
Magnetic valve for switching flow and control flow is some；
Pressure sensor for measuring container pressure is some.
The system can effectively improve the coefficient of heat transfer of evaporator, and compressor is effectively reduced on the premise of refrigerating capacity is constant
Wasted work, so as to significantly improve cooling system coefficient
Its structure is：
Heat-exchange tube in the input for going out to terminate heat-exchange tube in steam generator 2 of compressor 1, the steam generator 2
Output termination condenser 3 input, the output end of condenser 3 point two-way, the first via connects gas-liquid separator by choke valve 4
5 input, the second tunnel connects the input of steam generator 2 by liquid booster pump 8；The fluid output port of gas-liquid separator 5
By evaporator 6 connect compressor 1 enter end；The gas output end of gas-liquid separator 5 point two-way, the first via passes through the first magnetic valve
10 connect the first input end of injector 7, and the second tunnel enters end by what the second magnetic valve 11 connect compressor 1；The gas of steam generator 2
Body output end connects the second input of injector 7, the input of the output end condenser 3 of injector 7 by the 3rd magnetic valve 12.
Its method is：
Condenser is cooled down into condensed saturated liquid refrigerant point two-way, all the way by choke valve throttling decrease temperature and pressure,
Another road by liquid booster pump supercharging enter generator in, fluid level controller according to generator Liquid level booster pump start and stop,
Reach the purpose of control generator liquid level.
In system start-up phase, freeze due to being pressurized to the saturated liquid occurred under pressure in generator by liquid booster pump
((state point b) heating and gasifyings are into the saturated air occurred under pressure for superheated steam that state point h) is come out by exhaust outlet of compressor for agent
Body needs the regular hour, so temporarily first closing the 3rd magnetic valve.Now injector can not work because of no working steam
Make, so to close the first magnetic valve, open the second magnetic valve, make the flash gas (state point after gas-liquid separator separates
G) directly by compressor suck and without evaporator, it is to avoid flashed vapour, which enters evaporator, makes the limited heat exchange area of evaporator
It can not very well be utilized and reduce the coefficient of heat transfer.
In this stage generator filled with the saturated liquid refrigerant (state occurred under pressure is pressurized to by liquid booster pump
Superheated steam (state point b) the heating and gasifyings that point h) is being come out by exhaust outlet of compressor.When generator reaches with condenser pressure differential
During to 0.3MPa, the second magnetic valve 2 is closed, the first magnetic valve, the 3rd magnetic valve is opened.Closing due to the second magnetic valve and
The opening of one magnetic valve, the flash distillation gaseous refrigerant come out from gas-liquid separator (state point g) can't be sucked by compressor, and
It is that m state points are boosted to by injection through injector, now the pressure of m state points is condensing pressure (idiographic flow：In pressing
I state points working steam under power is first expanded to state point j in injector expansion chamber, now g state points refrigerant gas quilt
Receiving chamber is sucked, both are mixed into state point k in injector mixing chamber, then boost to state point by the diffuser of injector
m).C state points and m state points are condensed to d state points into condenser, then divide two-way, are pressurized all the way by liquid booster pump
Into generator, another road throttles to e state points into choke valve, and the flashed vapour produced after throttling (g state points) is by gas-liquid point
Separate and cooled down by injector injection into condenser from device.Now enter the only liquid refrigerant that evaporator evaporation is freezed
(state point f), so the effective heat exchange area and the coefficient of heat transfer of evaporator all will be enhanced.F state point liquid refrigerants exist
Gasification heat absorption is completed to freeze in evaporator, and as saturated gas, (state point a) is sucked by compressor, is compressed into the gas of HTHP
(state point b), discharges sensible heat to body during by generator, temperature is reduced to after state point c into condenser and condensed to state point d.
So far both vapor compression-injection Combined Refrigeration Cycle using refrigeration compressor exhaust sensible heat is completed.
Claims (3)
1. a kind of both vapor compression-injection Combined Refrigeration Cycle device, it is characterised in that：The output termination steam hair of compressor (1)
The output of heat-exchange tube terminates the input of condenser (3) in the input of heat-exchange tube, the steam generator (2) in raw device (2)
End, the output end point two-way of condenser (3), the first via connects the input of gas-liquid separator (5), the second tunnel by choke valve (4)
The input of steam generator (2) is connect by liquid booster pump (8)；The fluid output port of gas-liquid separator (5) passes through evaporator
(6) input of compressor (1) is connect；The gas output end of gas-liquid separator (5) point two-way, the first via passes through the first magnetic valve
(10) first input end of injector (7) is connect, the second tunnel enters end by what the second magnetic valve (11) connect compressor (1)；Steam is sent out
The gas output end of raw device (2) connects the second input of injector (7), the output of injector (7) by the 3rd magnetic valve (12)
Hold the input of condenser (3).
2. a kind of refrigerating and circulating method of both vapor compression as claimed in claim 1-injection Combined Refrigeration Cycle device, its feature
It is：This method is vented the both vapor compression injection Combined Refrigeration Cycle of sensible heat using refrigeration compressor, by controlling magnetic valve
Open and close to realize that refrigeration compressor exhaust indirect heating and gasifying in generator is pressurized under generation pressure by liquid booster pump
Saturated liquid refrigerant, produces the saturated gas occurred under pressure, as the flash distillation through gas-liquid separator separates after injection throttling
The working steam of injector used in gas.
3. the refrigerating and circulating method of both vapor compression as claimed in claim 2-injection Combined Refrigeration Cycle device, it is characterised in that
Using refrigeration compressor be vented sensible heat both vapor compression injection Combined Refrigeration Cycle method be：The condensed saturated solution of condenser
Cryogen point two-way, enters gas-liquid separator, the saturated liquid after separation enters evaporator by choke valve throttling all the way,
The heat of object to be cooled is absorbed in evaporator and is sucked by refrigerant by compressor after gasifying, the gas of HTHP is compressed into
Condenser condensation is entered back into after into generator cooling；Another road enters in generator by liquid booster pump supercharging, passes through liquid
Level controller controls booster pump start and stop, reaches the purpose of liquid level in control generator；
In system start-up phase, because the superheated steam heating and gasifying that liquid refrigerant is discharged by compressor in generator needs one
The fixed time, so temporarily first closing the 3rd magnetic valve, now injector can not work because of no working steam, therefore will
The first magnetic valve is closed, the second magnetic valve is opened, the flash gas after gas-liquid separator separates is directly sucked by compressor；
When generator and condenser pressure differential reach 0.3MPa, the second magnetic valve is closed, the first magnetic valve, the 3rd electromagnetism is opened
Valve, injector is started working, and the flash distillation gaseous refrigerant come out from gas-liquid separator enters condensation after being boosted through injector injection
Device is condensed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510607996.7A CN105241115B (en) | 2015-09-22 | 2015-09-22 | Both vapor compression sprays Combined Refrigeration Cycle device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510607996.7A CN105241115B (en) | 2015-09-22 | 2015-09-22 | Both vapor compression sprays Combined Refrigeration Cycle device and method |
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| Publication Number | Publication Date |
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| CN105241115A CN105241115A (en) | 2016-01-13 |
| CN105241115B true CN105241115B (en) | 2017-09-19 |
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| CN105650922B (en) * | 2016-02-29 | 2018-05-15 | 东南大学 | A kind of overlapping refrigerating cycle system coupled with injector |
| CN107238228B (en) * | 2017-06-09 | 2019-12-13 | 东南大学 | refrigerating cycle system combining ammonia water absorption and injection and operation method |
| CN112944704A (en) * | 2019-12-10 | 2021-06-11 | 珠海格力电器股份有限公司 | Refrigeration system with cooling device and control method |
| CN111252835A (en) * | 2020-01-16 | 2020-06-09 | 深圳瑞赛环保科技有限公司 | Waste liquid evaporation treatment method and heating and refrigerating method in waste liquid evaporation process |
| CN112268376A (en) * | 2020-09-15 | 2021-01-26 | 珠海格力电器股份有限公司 | Fluorine pump type heat pipe and jet refrigeration cycle composite system and control method thereof |
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| JP2002081788A (en) * | 2000-09-05 | 2002-03-22 | Tokyo Gas Co Ltd | Refrigeration cycle system |
| JP2003336927A (en) * | 2002-05-21 | 2003-11-28 | Jfe Engineering Kk | Combined refrigerating system |
| CN1749674A (en) * | 2005-09-29 | 2006-03-22 | 上海交通大学 | Compressor/heat source mixed driven automobile air conditioning refrigerating system |
| KR100776371B1 (en) * | 2006-06-29 | 2007-11-16 | 홍남표 | High efficiency refrigeration system for saving energy and control method the same |
| CN101825372A (en) * | 2010-04-14 | 2010-09-08 | 东南大学 | Device and method for combined ejection refrigeration and vapor compression refrigeration cycle |
| JP2013217512A (en) * | 2012-04-04 | 2013-10-24 | Osaka Gas Co Ltd | Engine driven heat pump air conditioner |
| CN103954061B (en) * | 2014-04-11 | 2016-04-06 | 西安交通大学 | The one-stage steam compressed formula circulatory system of cold synergy crossed by a kind of injector |
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