CN110057127A - A kind of coupling heat pump heat exchanger - Google Patents
A kind of coupling heat pump heat exchanger Download PDFInfo
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- CN110057127A CN110057127A CN201910455955.9A CN201910455955A CN110057127A CN 110057127 A CN110057127 A CN 110057127A CN 201910455955 A CN201910455955 A CN 201910455955A CN 110057127 A CN110057127 A CN 110057127A
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- 230000008878 coupling Effects 0.000 title claims description 19
- 238000010168 coupling process Methods 0.000 title claims description 19
- 238000005859 coupling reaction Methods 0.000 title claims description 19
- 238000007906 compression Methods 0.000 claims abstract description 54
- 238000000034 method Methods 0.000 claims abstract description 42
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 42
- 239000012530 fluid Substances 0.000 claims abstract description 7
- 230000006835 compression Effects 0.000 claims description 51
- 239000000243 solution Substances 0.000 claims description 51
- 239000007788 liquid Substances 0.000 claims description 44
- 238000010790 dilution Methods 0.000 claims description 37
- 239000012895 dilution Substances 0.000 claims description 37
- 238000009833 condensation Methods 0.000 claims description 24
- 230000005494 condensation Effects 0.000 claims description 23
- 238000001704 evaporation Methods 0.000 claims description 21
- 230000008020 evaporation Effects 0.000 claims description 14
- 239000000203 mixture Substances 0.000 claims description 11
- 239000003507 refrigerant Substances 0.000 claims description 8
- 239000000126 substance Substances 0.000 claims description 8
- 238000009835 boiling Methods 0.000 claims description 5
- 239000007921 spray Substances 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 4
- 125000004122 cyclic group Chemical group 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 2
- 238000000605 extraction Methods 0.000 claims 1
- 238000010521 absorption reaction Methods 0.000 description 6
- 239000004615 ingredient Substances 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- LVGUZGTVOIAKKC-UHFFFAOYSA-N 1,1,1,2-tetrafluoroethane Chemical compound FCC(F)(F)F LVGUZGTVOIAKKC-UHFFFAOYSA-N 0.000 description 1
- VCRNFKKHEIEHCS-UHFFFAOYSA-N 2-[2-[2-(2-hydroxyethoxy)ethoxy]ethoxy]ethanol;methoxymethane Chemical compound COC.OCCOCCOCCOCCO VCRNFKKHEIEHCS-UHFFFAOYSA-N 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H4/00—Fluid heaters characterised by the use of heat pumps
- F24H4/02—Water heaters
-
- 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
- F25B29/00—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously
- F25B29/003—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously of the compression type system
-
- 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
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
-
- 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
- F25B7/00—Compression machines, plants or systems, with cascade operation, i.e. with two or more circuits, the heat from the condenser of one circuit being absorbed by the evaporator of the next circuit
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
- F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Sorption Type Refrigeration Machines (AREA)
Abstract
The present invention proposes that a kind of efficient heat for extracting cold water is used for the high-performance heat exchanger of heat hot water, and two stages of compression process, dilution-regenerative process and heat exchange of heat pipe are coupled and realize the heat transfer process.The high-performance heat exchanger can select one or more kinds of at being grouped as cycle fluid according to the parameter request of heat exchange.Meanwhile two-stage compressor can use steam turbine or motor driven, compared to for existing heat exchange mode, it can be achieved that under the limiting condition of " hot side and the cold side temperature difference are big " and " hot side outlet temperature is high " efficient operation, with significant performance advantage.
Description
Technical field
The invention belongs to technical field of energy utilization, carry out the heat exchanger that heat exchanges with hot water more particularly to cold water.
Background technique
It is widely present a large amount of heat exchange process in field of energy utilization, the transmittance process of heat can be summarized as from height
Warm fluid is transmitted to cryogen or is transmitted from cryogen to high temperature fluid.According to Newton's second law, heat can be certainly
The slave high temp objects of hair are transmitted to cryogenic object, can be realized using only ordinary heat exchanger；If necessary to by heat from cryogenic object
It is transmitted to high temp objects then to need to consume certain cost, generally requires to consume a certain amount of high-grade energy, such as electric power, high temperature
Steam or hot water of degree etc. are needed using heat pump, induction apparatus etc..In the prior art, using heat pump techniques due to its compared with
High efficiency and reliability has obtained the approval and application in market.It is divided into absorption heat pump or compression by principle in heat pump techniques
Formula heat pump mode, wherein absorption heat pump is divided into first-class absorption type heat pump and second-kind absorption-type heat pump again, and the first kind absorbs
Formula heat pump needs to consume high-grade energy and the heat of cryogenic object is largely transferred to high temp objects, also referred to as increasing heating type heat pump,
And second class absorption heat pump does not need consumption high-grade energy, and the cold source than cryogenic object lower temperature is needed, extract cryogenic object
A small amount of heat high temp objects are continued to heat up, also referred to as warming heat pump；Compression heat pump needs to consume mechanical work, by inverse
Carnot cycle realizes that heat is transmitted to high temp objects from cryogenic object.Absorption heat pump is by thermodynamic cycle and the limit of working medium physical property
High temp objects can only be carried out finite temperature promotion by system, and compression heat pump is limited by thermodynamic cycle and working medium physical property, to height
Cycle efficieny sharply declines when warm object carries out significantly temperature rise, needs largely to be done work.Therefore absorption heat pump and compression
Formula heat pump can only operate in the more superior working range of respective performance, and then limit heat pump in cryogenic object to high temp objects
The application of diabatic process, i.e., it is existing under " high temp objects and the cryogenic object temperature difference are big " and the operating condition of " high temp objects temperature rise is big "
Heat pump techniques be unable to satisfy demand.
In order to solve above-mentioned application problem, which proposes a kind of using dilution-regenerative process, two stages of compression process
New and effective transmitting heat exchanger of the heat from cryogenic object to high temp objects is realized with heat exchange of heat pipe.
Summary of the invention
In order to meet the heat exchange demand of " high temp objects and the cryogenic object temperature difference are big " and " high temp objects temperature rise is big ", the invention
Dilution-regenerative process, vapour compression machine and heat exchange of heat pipe are organically combined and realize heat from cryogenic object to high temp objects
Efficiently transmitting.The heat exchanger includes regenerator 1, condenser 2, dilution evaporator 3, evaporative condenser 4, vapour compression machine 5, steam
Compressor 6, throttle valve 7, throttle valve 8, circulating pump 9, circulating pump 10, heat exchange of heat pipe 11 and connecting line are constituted.It is followed inside it
Ring working medium includes working medium A, working medium B and working medium C, wherein working medium A and working medium B composition working medium pair, and working medium A is solid or liquid work
Matter, working medium B are liquid working substance, and working medium A is dissolved in working medium B and forms solution.Working medium C is liquid working substance, be can be selected and working medium B phase
Same or different ingredient.
The principle and the method for operation of each component units are as follows:
Regenerator 1 realizes that the heat heat-transfer pipe external solution for extracting cold water generates the process of working medium B steam to boiling,
Weak solution, in the outer surface of heat-transfer pipe, is become through nozzles spray by constantly boiling in the top-down flow process of gravity
It is left after concentrated solution, while temperature declines after the solution outside the cold water heating heat-transfer pipe inside heat-transfer pipe.
Condenser 2 realizes that working medium B becomes the condensation process of liquid from steam state outside heat-transfer pipe, while discharging heat
Hot water in hot water line 12.
Dilution evaporator 3 realizes that the concentrated solution of working medium A and working medium B composition absorbs the process that working medium B steam becomes weak solution,
The condensation heat of working medium B steam is utilized during concentrated solution flows from above to below outside vertical heat-transfer pipe after liquid distribution trough 15
Working medium C in heated vertical pipe becomes steam state from liquid.Wherein the concentrated solution of working medium A and working medium B composition absorbs working medium B steam and exists
It dilutes space 3 (b) to complete, the evaporation process of working medium C is completed in evaporating space 3 (a).
Evaporative condenser 4 realizes that liquid refrigerant B becomes the evaporation process of steam state, and liquid refrigerant B is through nozzles spray in level
Outside heat-transfer pipe, evaporated during flowing from above to below by the heat of horizontal intraductal working medium C condensation release, working medium B becomes
To be left after steam state, at the same working medium C become liquid after leave.
Vapour compression machine 5, which is realized, carries out the purpose that compression promotes its temperature, pressure to the working medium B steam from regenerator 1.
Vapour compression machine 6, which is realized, carries out the mesh that compression promotes its temperature, pressure to the working medium C steam from dilution evaporator 3
's.
Throttle valve 7 and throttle valve 8 realize the purpose of working medium C and working medium B pressure and temperature reducing to liquid respectively.
Circulating pump 9 is realized is recycled back into dilution evaporator 3 in the dilution unevaporated liquid refrigerant C in 3 bottom of evaporator again
Continue the process in vertical in-tube evaporation in top.
The weak solution pressurization that the realization of circulating pump 10 will leave dilution evaporator 3 is warmed laggard after sending to heat exchange of heat pipe 11
Enter the purpose of regenerator 1.
Heat exchange of heat pipe 11 realizes the heat exchange process of concentrated solution and weak solution, realizes that weak solution is entering regenerator 1
The purpose being preheated before.
Hot water inside hot water line 12 through being warmed, and cold water inside cold water pipeline 13 through being cooled down.
The connection type of component units inside coupling heat pump heat exchanger are as follows:
Vapour compression machine 5 is connected with regenerator 1 and condenser 2.
Vapour compression machine 6 is connected with dilution evaporator 3 and evaporative condenser 4.
Regenerator 1 is connected with vapour compression machine 5, heat exchange of heat pipe 11 and cold water pipeline 13.
Condenser 2 is connected with vapour compression machine 5, throttle valve 8 and hot water line 12.
Dilute evaporator 3 and heat exchange of heat pipe 11, vapour compression machine 6, throttle valve 7, evaporative condenser 4, circulating pump 10 and
Hot water line is connected.
Evaporative condenser 4 is connected with throttle valve 8, dilution evaporator 3, throttle valve 7, circulating pump 14 and vapour compression machine 6.
Heat exchange of heat pipe 11 is connected with regenerator 1, dilution evaporator 3 and circulating pump 10.
The inside cyclic process of the heat exchanger of coupling heat pump includes: the evaporative condenser circulation of working medium B and the evaporation of working medium C
Condensation cycle.
The evaporative condenser circulation theory of working medium B: the solution of working medium A and working medium B composition, which is heated in regenerator 1 by cold water, to be regenerated
Steam state working medium B is generated, steam state working medium B, which enters after vapour compression machine 5, is warmed boosting, and steam state working medium B enters cold after condenser 2
But left after becoming liquid, liquid refrigerant B after throttle valve 8 by pressure and temperature reducing after enter evaporative condenser 4 condensed by working medium C
The heat of release becomes steam, and working medium B steam, which is absorbed in dilution evaporator 3 by solution, completes condensation process, and working medium B is cold
Weak solution after solidifying generates steam state working medium B after circulating pump 10 and heat exchange of heat pipe 11 enter regenerator 1 again, and so on follows
Ring.
The evaporative condenser circulation theory of working medium C:
Heat of the working medium C of liquid in dilution evaporator 3 by working medium B condensation release becomes steam state, the work of steam state
Matter C pressure after vapour compression machine 6 is elevated, and steam state working medium C becomes in the horizontal in-tube condensation of evaporative condenser 4 release heat
Liquid, the working medium C of liquid is heated into steam state after entering dilution evaporator 3 after throttle valve 7 is by pressure and temperature reducing, so past
Multiple circulation.
As previously mentioned, vapour compression machine 5 and vapour compression machine 6 can use steam turbine or motor driven, pass through consumption
External steam or electric power complete the compression process of internal cycle fluid.
For working medium A and working medium B, the ingredient needs of working medium A have good dissolubility in working medium B, to complete work
The evaporation and condensation process of matter B, wherein working medium A can be by a kind of, two kinds or more of at being grouped as.It, can for working medium C
To be made of a kind of, two kinds or more of ingredient.
The invention heat exchanger uses two-stage vapour compression machine, can be obviously improved the increasing extent of temperature of hot water and cold
The cooling extent of water, while promoting efficiency of heat exchanger.Firstly, working medium B steam is compressed in the realization of vapour compression machine 5, it is real
Show the significantly promotion of its temperature and pressure, and then be obviously improved the condensation temperature of working medium B in condenser 2, to mention
The outlet temperature of hot water is risen.Secondly, vapour compression machine 6 realizes the compression to working medium C steam, dilution evaporator is thereby reduced
The evaporating temperature of working medium C and the condensation temperature of working medium C in evaporative condenser 4, therefore the working medium B of evaporative condenser 4 are improved in 3
Evaporating temperature promoted, the weak solution concentration that dilution evaporator 3 exports is lower, and then can reduce cold water in regenerator 1
To lower temperature.The heat exchanger meets the heat exchange of " high temp objects and the cryogenic object temperature difference are big " and " high temp objects temperature rise is big "
Demand.
Detailed description of the invention
Fig. 1 is a kind of coupling heat pump heat exchanger flow chart.
Fig. 2 is a kind of coupling heat pump heat exchanger embodiments flow chart.
Appended drawing reference: 1- regenerator, 2- condenser, 3- dilution evaporator, 3 (a)-evaporating spaces, 3 (b)-condensation spaces,
4- evaporative condenser, 5- vapour compression machine, 6- vapour compression machine, 7- throttle valve, 8- throttle valve, 9- circulating pump, 10- circulating pump,
11- heat exchange of heat pipe, 12- hot water line, 13- cold water pipeline, 14- circulating pump, 15- liquid distribution trough, 16- motor, 17- steamer
Machine.
Specific embodiment
To keep the purposes, technical schemes and advantages of the invention implemented clearer, below in conjunction in the embodiment of the present invention
Attached drawing 2, technical solution in the embodiment of the present invention is further described in more detail.In fig 2, identical from beginning to end or
Similar label indicates same or similar element or element with the same or similar functions.Described embodiment is this hair
Bright a part of the embodiment, instead of all the embodiments.The embodiments described below with reference to the accompanying drawings are exemplary, it is intended to
It is used to explain the present invention, and is not considered as limiting the invention.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
To use working medium A as dimethyl ether tetraethylene glycol (DMETEG), working medium B and working medium C are that tetrafluoroethane (R134a) is
Example, wherein DMETEG combines to form solution with R134a, by solution DMETEG concentration variation realize R134a evaporation with
Condensation process.By taking Fig. 2 as an example, the operation logic of all parts and system to the coupling heat pump heat exchanger is described:
Regenerator 1 realizes that the heat heat-transfer pipe external solution for extracting cold water generates the process of R134a steam to boiling,
Weak solution, in the outer surface of heat-transfer pipe, is become through nozzles spray by constantly boiling in the top-down flow process of gravity
It is left after concentrated solution, while temperature declines after the solution outside the cold water heating heat-transfer pipe inside heat-transfer pipe.
Condenser 2 realizes that R134a becomes the condensation process of liquid from steam state outside heat-transfer pipe, while discharging heat
Hot water in hot water line 12.
Dilution evaporator 3 realizes that the concentrated solution of DMETEG and R134a composition absorbs the mistake that R134a steam becomes weak solution
Journey utilizes the cold of R134a steam during concentrated solution flows from above to below outside vertical heat-transfer pipe after liquid distribution trough 15
The R134a coagulated in hot heated vertical pipe becomes steam state from liquid.Wherein the concentrated solution of DMETEG and R134a composition absorbs R134a
Steam is completed in dilution space 3 (b), and the evaporation process of R134a is completed in evaporating space 3 (a).
Evaporative condenser 4 realizes that liquid R134a becomes the evaporation process of steam state, and liquid R134a is through nozzles spray in level
Outside heat-transfer pipe, evaporated during flowing from above to below by the heat of R134a condensation release in horizontal tube, outside pipe
R134a leaves after becoming steam state, at the same the R134a in pipe become liquid after leave.
Vapour compression machine 5, which is realized, carries out the purpose that compression promotes its temperature, pressure to the R134a steam from regenerator 1.
Vapour compression machine 6, which is realized, carries out the mesh that compression promotes its temperature, pressure to the R134a steam from dilution evaporator 3
's.
Throttle valve 7 and throttle valve 8 realize the purpose to the R134a pressure and temperature reducing of liquid respectively.
Circulating pump 9 is realized is recycled back into dilution evaporator 3 in the dilution unevaporated liquid R134a in 3 bottom of evaporator again
Continue the process in vertical in-tube evaporation in top.
The weak solution pressurization that the realization of circulating pump 10 will leave dilution evaporator 3 is warmed laggard after sending to heat exchange of heat pipe 11
Enter the purpose of regenerator 1.
The inside cyclic process of the embodiment includes: two evaporative condensers circulation of R134a.One circulation are as follows: DMETEG
Regeneration is heated by cold water in regenerator 1 with the solution of R134a composition and generates steam state R134a, steam state R134a enters vapour compression machine
Be warmed boosting after 5, steam state R134a enter after condenser 2 be cooled become liquid after leave, liquid R134a passes through throttle valve 8
Entered heat of the evaporative condenser 4 outside pipe by the R134a condensation release in pipe after pressure and temperature reducing afterwards and become steam,
R134a steam, which is absorbed in dilution evaporator 3 by solution, completes condensation process, and the condensed weak solution of R134a is through circulating pump 10
Steam state R134a is generated again after entering regenerator 1 with heat exchange of heat pipe 11, so on circulate.Another circulation are as follows: liquid
R134a becomes steam state, the R134a warp of steam state by the heat of R134a condensation release outside pipe in dilution 3 vertical tube of evaporator
Pressure is elevated after crossing vapour compression machine 6, and steam state R134a becomes liquid in the horizontal in-tube condensation of evaporative condenser 4 release heat,
The R134a of liquid is heated into steam state after entering dilution evaporator 3 after throttle valve 7 is by pressure and temperature reducing, and so on follows
Ring.
Vapour compression machine 6 is driven using steam turbine 17 in this embodiment, vapour compression machine 5 is driven using motor 16.
Finally it is noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations.To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, those skilled in the art should understand that: it is still
It is possible to modify the technical solutions described in the foregoing embodiments, or part of technical characteristic is equally replaced
It changes；And these are modified or replaceed, the essence for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution
Mind and range.
Claims (6)
1. a kind of coupling heat pump heat exchanger, it is characterised in that: the heat exchanger include regenerator 1, condenser 2, dilution evaporator 3,
Evaporative condenser 4, vapour compression machine 5, vapour compression machine 6, throttle valve 7, throttle valve 8, circulating pump 9, circulating pump 10, heat pipe heat exchanging
Device 11 and connecting line are constituted.
A kind of coupling heat pump heat exchanger as previously described, building block connection type are as follows: vapour compression machine 5 and regenerator 1 and condensation
Device 2 is connected.Vapour compression machine 6 is connected with dilution evaporator 3 and evaporative condenser 4.Regenerator 1 is changed with vapour compression machine 5, heat pipe
Hot device 11 is connected with cold water pipeline 13.Condenser 2 is connected with vapour compression machine 5, throttle valve 8 and hot water line 12.Dilution evaporation
Device 3 is connected with heat exchange of heat pipe 11, vapour compression machine 6, throttle valve 7, evaporative condenser 4, circulating pump 10 and hot water line.Evaporation
Condenser 4 is connected with throttle valve 8, dilution evaporator 3, throttle valve 7, circulating pump 14 and vapour compression machine 6.Heat exchange of heat pipe 11 with
Regenerator 1, dilution evaporator 3 are connected with circulating pump 10.
A kind of coupling heat pump heat exchanger as previously described, regenerator 1 realize the heat heat-transfer pipe external solution of extraction cold water extremely
Boiling generates the process of working medium B steam.The realization of condenser 2 working medium B outside heat-transfer pipe becomes the condensation process of liquid from steam state,
The hot water in heat hot water line 12 is discharged simultaneously.It dilutes evaporator 3 and realizes that the concentrated solution of working medium A and working medium B composition is inhaled
Matter of knocking off B steam becomes the process of weak solution, and wherein it is empty in dilution to absorb working medium B steam for the concentrated solution of working medium A and working medium B composition
Between 3 (b) complete, the evaporation process of working medium C is completed in evaporating space 3 (a).Evaporative condenser 4 realizes that liquid refrigerant B becomes steam state
Evaporation process, liquid refrigerant B through nozzles spray outside horizontal heat transfer pipe, by work in horizontal tube during flowing from above to below
Matter C condenses the heat of release and evaporating becomes steam state, while working medium C becomes liquid.Vapour compression machine 5 and vapour compression machine
6, which carry out compression to working medium B steam and working medium C steam respectively, promotes its temperature, pressure.Throttle valve 7 and throttle valve 8 are realized pair respectively
The working medium C of liquid and the purpose of working medium B pressure and temperature reducing.Circulating pump 9 is realized in the dilution unevaporated liquid refrigerant in 3 bottom of evaporator
C is recycled back into the process continued at the top of dilution evaporator 3 in vertical in-tube evaporation again.The realization of circulating pump 10 will leave dilution and steam
The weak solution pressurization of hair device 3 enters the purpose of regenerator 1 after being warmed after sending to heat exchange of heat pipe 11.Heat exchange of heat pipe 11 is realized
The heat exchange process of concentrated solution and weak solution realizes the purpose that weak solution is preheated before entering regenerator 1.Hot water is through warm
It is warmed inside water lines 12, cold water inside cold water pipeline 13 through being cooled down.
Cyclic process includes inside a kind of coupling heat pump heat exchanger as previously described: the evaporative condenser circulation and working medium C of working medium B
Evaporative condenser circulation:
1. the evaporative condenser circulation theory of working medium B: the solution of working medium A and working medium B composition heats reproduction by cold water in regenerator 1
Raw steam state working medium B, steam state working medium B are warmed boosting after entering vapour compression machine 5, and steam state working medium B is cooled after entering condenser 2
Left after becoming liquid, liquid refrigerant B after throttle valve 8 by pressure and temperature reducing after enter evaporative condenser 4 by working medium C condensation release
The heat put becomes steam, and working medium B steam, which is absorbed in dilution evaporator 3 by solution, completes condensation process, and so on
Circulation.
2. the evaporative condenser circulation theory of working medium C: the working medium C of liquid is in dilution evaporator 3 by the heat of working medium B condensation release
Heating becomes steam state, and the working medium C of steam state pressure after vapour compression machine 6 is elevated, and steam state working medium C is in 4 water of evaporative condenser
Flat in-tube condensation release heat becomes liquid, and the working medium C of liquid enters dilution evaporator 3 after throttle valve 7 is by pressure and temperature reducing
After be heated into steam state, so on circulate.
A kind of coupling heat pump heat exchanger as previously described, vapour compression machine 5 and vapour compression machine 6 can be respectively adopted steam turbine or
Motor driven.
A kind of coupling heat pump heat exchanger as previously described, internal circulation cycle fluid include working medium A, working medium B and working medium C, wherein
Working medium A and working medium B forms working medium pair, and working medium A is solid or liquid working substance, and working medium B is liquid working substance, and working medium A is dissolved in work
Solution is formed in matter B.Working medium C is liquid working substance, be can be selected and working medium B same or different substance.
2. a kind of coupling heat pump heat exchanger according to claim 1, it is characterised in that: coupling heat pump heat exchanger uses simultaneously
Single-stage or Two-stage Compression can be respectively adopted in two-stage vapour compression machine, compressors at different levels.
3. a kind of coupling heat pump heat exchanger according to claim 1, it is characterised in that: working medium A or working medium C is respectively pure matter
Or mixture.
4. a kind of coupling heat pump heat exchanger according to claim 1, it is characterised in that: using heat exchange of heat pipe to weak solution
It is preheated, the temperature difference by reducing weak solution and concentrated solution is obviously improved the preheating quantity of weak solution, and then is obviously improved
Heat exchange efficiency.
5. a kind of coupling heat pump heat exchanger according to claim 1, it is characterised in that: the heat that condenser 2 is discharged is used
In heat hot water, steam or chemical industry fluid media (medium)；The extracted heat of regenerator 1 comes from cold water, steam or chemical industry fluid media (medium).
6. a kind of coupling heat pump heat exchanger according to claim 1, it is characterised in that: regenerator 1, condenser 2, dilution are steamed
It sends out device 3 and evaporative condenser 4 can be respectively using single-stage or multistage process.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910455955.9A CN110057127B (en) | 2019-05-29 | 2019-05-29 | Coupling heat pump heat exchanger |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910455955.9A CN110057127B (en) | 2019-05-29 | 2019-05-29 | Coupling heat pump heat exchanger |
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| CN110057127A true CN110057127A (en) | 2019-07-26 |
| CN110057127B CN110057127B (en) | 2023-12-19 |
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| CN201910455955.9A Active CN110057127B (en) | 2019-05-29 | 2019-05-29 | Coupling heat pump heat exchanger |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112539572A (en) * | 2020-12-23 | 2021-03-23 | 华北电力大学 | Quasi-three-stage compression super heat pump heat exchange device and cold and heat source temperature difference heat exchange method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103148584A (en) * | 2013-01-15 | 2013-06-12 | 顺德职业技术学院 | Hot-water unit for twin-stage compressing heat pump |
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| CN110057127B (en) | 2023-12-19 |
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