CN109341165A - A kind of air source heat pump defrosting system based on heat of compressor phase-change accumulation energy - Google Patents
A kind of air source heat pump defrosting system based on heat of compressor phase-change accumulation energy Download PDFInfo
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- CN109341165A CN109341165A CN201811011970.6A CN201811011970A CN109341165A CN 109341165 A CN109341165 A CN 109341165A CN 201811011970 A CN201811011970 A CN 201811011970A CN 109341165 A CN109341165 A CN 109341165A
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
- F25B47/02—Defrosting cycles
- F25B47/022—Defrosting cycles hot gas defrosting
- F25B47/025—Defrosting cycles hot gas defrosting by reversing the cycle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B31/00—Compressor arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
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- 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
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
- F28D20/02—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using latent heat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
- F25B2400/24—Storage receiver heat
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
Abstract
The present invention relates to a kind of air source heat pump defrosting systems based on heat of compressor phase-change accumulation energy, including heating circuit and defrosting circuit, the heating circuit includes along the sequentially connected compressor in refrigerant circulation direction (3), indoor heat exchanger (9), expansion valve (4) and outdoor heat exchanger (5), and the defrosting circuit includes along the sequentially connected compressor in refrigerant circulation direction (3), outdoor heat exchanger (5), expansion valve (4) and waste heat energy-storage module (2)；The heating circuit and defrosting circuit shares a set of compressor (3), expansion valve (4), outdoor heat exchanger (5) and waste heat energy-storage module (2).Compared with prior art, the present invention combines phase change energy storage technology with heat pump techniques, extend the performance of heat pump in cold environments, it recycles compressor case waste heat and realizes low energy consumption defrosting, the working performance for reducing compressor power consumption, improving unit, the continuous heat supply for realizing user side, promotes the comfort level of indoor heating.
Description
Technical field
The present invention relates to a kind of air source heat pump defrosting systems, are based on heat of compressor phase-change accumulation energy more particularly, to one kind
Air source heat pump defrosting system.
Background technique
Energy shortage and problem of environmental pollution increasingly sharpen, and energy saving and environment friendly heating air-conditioner technology is concerned.COP (system
Hot Energy Efficiency Ratio) heat pump higher than 1 is a kind of generally acknowledged energy saving and environment friendly equipment, and a large amount of energy are stored in ubiquitous air
Amount, the air source heat pump that the two combines have become the featured equipment of China's heating equipment.But due to winter outdoor environment temperature
It is low, relative humidity is big, runs so that air source heat pump outdoor unit is often under frosting state, the presence of frost layer considerably increases room
Outer machine surface resistance of heat transfer, air flow through the resistance of outdoor unit, reduce unit heating performance, and confession is even unable to satisfy under bad environments
Heat demand.
Current most commonly used Defrost mode is reverse cycle defrosting, i.e., in defrost mode, four-way reversing valve commutation is outdoor
Machine is as condenser, and indoor unit is as evaporator.Indoor fan is typically in closed state when defrosting, leads to energy source of defrosting
Deficiency extends defrosting time, reduces defrosting efficiency.Reverse cycle defrosting is restricted by its defrosting process, can not improve defrosting effect
Guarantee the comfort of indoor environment while rate.
Frosting problem and following defrosting problem of the air source heat pump under frozen condition have become restriction, and it is efficient
The bottleneck of operation, compressor have partial heat to be directly discharged in environment by natural heat dissipation during the work time, summer system
Compressor case can reach 80 DEG C or more under worst hot case when cold, its skin temperature is returned also up to 60~70 DEG C when winter heating
Receive the working performance for being conducive to improve heat pump using this partial heat.The disadvantage of traditional Defrost technology is complete during defrosting
Suspend entirely to indoor heating, thus cannot achieve heat pump unit and continue heat supply to indoor, and also need from indoor absorption heat
For defrosting, thus cause room temperature decline and fluctuation, seriously affected indoor comfort level, how to reduce defrosting energy consumption,
Improving defrosting efficiency, reduce fluctuations in indoor temperature and then improving comfort level is the common problem that current air source heat pump faces.
Through the literature search to the prior art, realize that the relevant technical literature of air source heat pump defrosting is as follows:
Application No. is 201810072712.2 patents to disclose " a kind of air source heat pump defrosting system ", discloses one kind
The method to be defrosted using phase-change accumulation energy to heat pump, this method be substantially phase-change accumulation energy device is in parallel with indoor unit, when heating,
When energy storage recycles paralleling model operation, the storage of phase-change accumulation energy device heats the heat released when gaseous refrigerant condensation extra in circulation
Amount.Under defrosting mode, four-way reversing valve commutation, phase-change accumulation energy device gives outdoor heat exchanger heat release as evaporator, reaches defrosting effect
Fruit.This method will increase the volume of indoor unit, and during defrosting, indoor heat exchanger stops working, and influences human comfort
Degree.
Application No. is 201621459001.3 patents to disclose " head phase-change thermal storage frost removal type low-temperature air source heat pump machine
Group ", discloses a kind of method to defrost using heat of compressor, and this method is substantially that phase-change thermal storage is arranged in exhaust outlet of compressor
Device absorbs compressor air-discharging heat under heat pump heating mode, in defrosting mode, provides heat to outdoor unit by thermal storage device
Amount realizes defrosting.Structure is complicated for this method, and interior is using water- to-water heat exchanger heat accumulation and heat supply, and structure is complicated.
Summary of the invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide one kind based on more than compressor
The air source heat pump defrosting system of hot phase-change accumulation energy.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of air source heat pump defrosting system based on heat of compressor phase-change accumulation energy, including heat circuit and defrost back
Road, wherein
The heating circuit includes the compressor that connection is circuited sequentially along refrigerant circulation direction, indoor heat exchanger, swollen
Swollen valve and outdoor heat exchanger, the indoor heat exchanger is interior to be filled with heat accumulating, and forms with heat accumulating and heat accumulation can be achieved
With the high density heat accumulation cabinet to indoor heating function, the compressor installs the energy-storage module that has surplus heat outside；
The defrosting circuit includes the compressor that connection is circuited sequentially along refrigerant circulation direction, outdoor heat exchanger, swollen
Swollen valve and waste heat energy-storage module；
The heating circuit and defrosting circuit shares a set of compressor, expansion valve, outdoor heat exchanger and waste heat energy storage mould
Block.
Further, the air source heat pump defrosting system further includes that No.1 triple valve, No. two triple valves and four-way change
To valve, wherein three interfaces of No.1 triple valve are separately connected one end of indoor heat exchanger, waste heat energy-storage module and expansion valve,
The interface of No. two triple valves is separately connected the other end of indoor heat exchanger, the other end of waste heat energy-storage module and four-way reversing valve
A interface, the both ends of compressor are separately connected the b interface and d interface of four-way reversing valve, and the both ends of outdoor heat exchanger are separately connected swollen
The other end of swollen valve and the c interface of four-way reversing valve.
Further, when compressor, four-way reversing valve b interface, four-way reversing valve a interface, No. two triple valves, interiors are changed
Hot device, No.1 triple valve, expansion valve, outdoor heat exchanger, four-way reversing valve c interface and four-way reversing valve d interface in turn switch on simultaneously
Circulation is constituted, when remaining connection disconnects, heating circuit is connected and works (i.e. system is switched to heating mode), and air source heat pump removes
Defrosting system realizes the heat accumulation of heat accumulating Yu waste heat energy-storage module to indoor heating.
Further, when compressor, four-way reversing valve b interface, four-way reversing valve c interface, outdoor heat exchanger, expansion
Valve, No.1 triple valve, waste heat energy-storage module, No. two triple valves, four-way reversing valve a interface and four-way reversing valve d interface successively connect
Lead to and constitute circulation, when remaining connection disconnects, defrosting circuit is connected and works (i.e. system is switched to defrosting mode), at this point, room
Continue filled with heat accumulating to indoor heating in interior heat exchanger, meanwhile, the heat of waste heat energy-storage module storage is followed through refrigerant
It defrosts at ring to outdoor heat exchanger.
Further, the indoor heat exchanger includes tube side and shell side, wherein tube side both ends are separately connected No.1 threeway
Valve and No. two triple valves, shell side both ends connect user side.
Further, outdoor fan is equipped with by the outdoor heat exchanger.
Further, the heat accumulating is PCM phase-change heat-storage material.
The working principle of the present apparatus is described below:
Under heat supply mode, using the switching of four-way reversing valve, outdoor heat exchanger is evaporator, and indoor heat exchanger is condensation
Device.Control heat of compressor energy-storage module and system disconnection, i.e. system is run as common heat pump, compressor, four-way reversing valve,
No. two triple valves, indoor heat exchanger, No.1 triple valve, expansion valve, outdoor heat exchanger are connected by circulation.After compressor pressurizes
High temperature and pressure heat pump fluid becomes cryogenic high pressure liquid after entering the room heat exchanger condensation, passes through after then being flowed by expansion valve
Outdoor heat exchanger becomes high-temperature low-pressure liquid.At this point, release when heat of compressor energy-storage module absorbs and stores compressor operating
Heat.The phase-change heat-storage material filled in user side, heat accumulation module absorbs and stores the heat of working substance steam condensation, passes through
Indoor heat-exchanging loop realizes user side heat supply to heat user pipeline heat supply.
Under defrosting mode, using the switching of four-way reversing valve, heat of compressor energy-storage module is supplying heat source, outdoor heat exchanger
For evaporator.Control indoor unit and system disconnection, i.e. heat of compressor energy-storage module as condenser offer heat, compressor,
Outdoor heat exchanger, expansion valve, No.1 triple valve, heat of compressor energy-storage module, No. two triple valves are connected by circulation.Low-temp low-pressure heat
Fluid becomes high temperature and high pressure gas working medium by compressor pressurization after pump fluid absorption heat of compressor energy-storage module heat, then
Working medium condenses in outdoor heat exchanger and the frosting heat release to surface, realizes defrosting effect, cryogenic high pressure working medium continues through swollen
Swollen valve simultaneously enters next circulation.Under the mode, phase-change heat-storage material and use in heat accumulation module are realized using indoor heat-exchanging loop
The heat exchange of family side brings the heat of phase-change heat-storage material into interior, realizes that defrosting, heat supply carry out simultaneously.
Compared with prior art, the invention has the following advantages:
(1) heat accumulation module is filled using phase-change heat-storage material, the low-grade heat of heat pump output is absorbed and store, for hot-die
The heat constant to user side output high density, temperature, realizes comfort heat supply, realizes user side in defrost mode under formula
Uninterrupted heat supply is realized in uninterrupted heat supply.
(2) heat for being absorbed and being discharged when storing compressor operating using heat of compressor energy-storage module, makes compressor exist
It works under optimum working temperature, promotes heat pump overall performance, especially in cold winter, performance advantage is especially prominent, is defrosting
Realize that device is simple, good economy performance to outdoor unit defrost using existing heat pump circuit under mode.
Detailed description of the invention
Fig. 1 is overall structure connection schematic diagram of the invention；
Fig. 2 is heat supply mode schematic illustration of the present invention；
Fig. 3 is defrosting mode schematic illustration of the present invention.
Shown in figure label:
1, No.1 triple valve, 2, waste heat energy-storage module, 3, compressor, 4, expansion valve, 5, outdoor heat exchanger, 6, outdoor wind
Machine, 7, four-way reversing valve, 8, No. two triple valves, 9, indoor heat exchanger, 10, heat accumulating
Specific embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment
A kind of air source heat pump defrosting system based on heat of compressor phase-change accumulation energy, structure is as shown in Figure 1, the system
Including 7, No. two No.1 triple valve 1, compressor unit, expansion valve 4, outdoor heat exchanger 5, outdoor fan 6, four-way reversing valve threeways
Valve 8, heat accumulation module.Compressor unit includes waste heat energy-storage module 2 and compressor 3.Heat accumulation module includes indoor heat exchanger 9 and fills out
Fill phase-change heat-storage material 10 therein.
Indoor heat exchanger 9 include tube side and shell side, the both ends of 9 shell side of indoor heat exchanger be separately connected No.1 triple valve 1 with
One interface of No. two triple valves 8, the both ends of 9 tube side of indoor heat exchanger connect user side, by working-medium water by heat accumulating 10
Heat brings user side.
Outdoor heat exchanger 5 carries out forced convertion using outdoor fan 6.5 one end of outdoor heat exchanger connects 4 one end of expansion valve,
4 other end of expansion valve connects another interface of No.1 triple valve 1, the 1 remaining interface connection waste heat storage of No.1 triple valve
One end of energy module 2, the other end of waste heat energy-storage module 2 connect another interface of No. two triple valves 8, and No. two triple valves 8 are surplus
Under an interface connection four-way valve 7 a interface, one end of the b interface connect compressor 3 of four-way valve 7, compressor 3 it is another
The d interface of end connection four-way valve 7, the other end of the c interface connection outdoor heat exchanger 5 of four-way valve 7.
Using the switching of four-way reversing valve 7, under heat supply mode, outdoor heat exchanger 5 is evaporator, and indoor heat exchanger 9 is cold
Condenser, the working substance steam being discharged from compressor 3 enter the room heat exchanger 9 and flow into outdoor heat exchanger by expansion valve 4 after condensing
5.The phase-change heat-storage material 10 filled in indoor heat exchanger 9 absorbs and stores the heat of working substance steam condensation, passes through indoor heat exchange
User side heat supply is realized to heat user pipeline heat supply in circuit.When waste heat energy-storage module 2 absorbs and stores the work of compressor 3 simultaneously
The heat of release.
Using the switching of four-way reversing valve 7, under defrosting mode, waste heat energy-storage module 2 is supplying heat source, and outdoor heat exchanger 5 is
Condenser, absorb 2 heat of waste heat energy-storage module working fluid by compressor 3 pressurization after become high temperature and pressure working substance steam into
Enter the frosting heating that outdoor heat exchanger 5 condenses heat release to surface, realizes that defrosting effect, condensed liquid working substance pass through expansion valve
The heat of vaporization that 4 inflow waste heat energy-storage modules 2 absorb heat accumulating release mutually becomes high-temperature low-pressure working substance steam, then passes through
Compressor enters next circulation.Under the mode, user side is by indoor heat-exchanging loop by phase-change heat-storage material 10 in heat accumulation module
Heat take interior to, realize that defrosting, heat supply carry out simultaneously.
The working principle of the present apparatus is described below:
Under heat supply mode, its principle is as shown in Figure 2, utilizes 1, No. two triple valve 8 of No.1 triple valve and four-way reversing valve 7
Switching, No.1 triple valve 1 connect indoor heat exchanger 9 and expansion valve 4, and No. two triple valves 8 connect indoor heat exchanger 9 and four-way commutation
The a interface of valve 7, a interface is connected with b interface in four-way reversing valve 7, and c interface is connected with d interface, and outdoor heat exchanger 5 is evaporation
Device, indoor heat exchanger 9 are condenser.Waste heat energy-storage module 2 and system disconnection are controlled, i.e. system is run as common heat pump, is pressed
Contracting machine 3, four-way valve, No. two triple valves 8, indoor heat exchanger 9, No.1 triple valve 1, expansion valve 4, outdoor heat exchanger 5 are connected by circulation.
High temperature and pressure heat pump fluid after the pressurization of compressor 3, which enters the room after heat exchanger 9 condenses, becomes cryogenic high pressure liquid, then
High-temperature low-pressure liquid is become by outdoor heat exchanger 5 after flowing by expansion valve 4.At this point, waste heat energy-storage module 2 is absorbed and is stored
The heat that compressor 3 discharges when working.The phase-change heat-storage material 10 filled in user side, heat accumulation module absorbs and stores working medium
The heat of steam condensation realizes user side heat supply by indoor heat-exchanging loop to heat user pipeline heat supply.
Under defrosting mode, principle is as shown in figure 3, utilize 1, No. two triple valve 8 of No.1 triple valve and four-way reversing valve 7
Switching, No.1 triple valve 1 connect waste heat energy-storage module 2 and expansion valve 4, and No. two triple valves 8 connect waste heat energy-storage module 2 and four-way
The a interface of reversal valve 7, a interface and d interface of four-way reversing valve 7 communicate, and b interface and c interface communicate, and waste heat energy-storage module 2 is
Supplying heat source, outdoor heat exchanger 5 are condenser.Indoor unit and system disconnection are controlled, i.e. waste heat energy-storage module 2 is used as outdoor heat exchanger
The heat source of 5 defrostings, 2, No. two compressor 3, outdoor heat exchanger 5, expansion valve 4, No.1 triple valve 1, waste heat energy-storage module triple valves 8
It is connected by circulation.Fluid becomes high temperature height by the pressurization of compressor 3 after low-temp low-pressure heat pump fluid absorption 2 heat of waste heat energy-storage module
Gas working medium is pressed, subsequent working medium condenses heat release in outdoor heat exchanger 5 and heats to the frosting on surface, realizes defrosting effect, low
Warm high-pressure working medium continues through expansion valve 4 and enters next circulation.Under the mode, heat accumulation mould is realized using indoor heat-exchanging loop
The heat exchange of phase-change heat-storage material 10 and user side in block brings the heat of heat accumulating 10 into interior, realizes defrosting, heat supply simultaneously
It carries out.
The above description of the embodiments is intended to facilitate ordinary skill in the art to understand and use the invention.
Person skilled in the art obviously easily can make various modifications to these embodiments, and described herein general
Principle is applied in other embodiments without having to go through creative labor.Therefore, the present invention is not limited to the above embodiments, ability
Field technique personnel announcement according to the present invention, improvement and modification made without departing from the scope of the present invention all should be of the invention
Within protection scope.
Claims (7)
1. a kind of air source heat pump defrosting system based on heat of compressor phase-change accumulation energy, which is characterized in that including heating circuit
With defrosting circuit, wherein
The heating circuit include the compressor (3) that connection is circuited sequentially along refrigerant circulation direction, indoor heat exchanger (9),
Expansion valve (4) and outdoor heat exchanger (5), the indoor heat exchanger (9) is interior to be filled with heat accumulating (10), and and heat accumulating
(10) forming can be achieved heat accumulation and the high density heat accumulation cabinet to indoor heating function, and the compressor (3) is installed outside to be had surplus heat
Energy-storage module (2)；
The defrosting circuit include the compressor (3) that connection is circuited sequentially along refrigerant circulation direction, outdoor heat exchanger (5),
Expansion valve (4) and waste heat energy-storage module (2)；
The heating circuit and defrosting circuit shares a set of compressor (3), expansion valve (4), outdoor heat exchanger (5) and waste heat and stores up
It can module (2).
2. a kind of air source heat pump defrosting system based on heat of compressor phase-change accumulation energy according to claim 1, special
Sign is that the air source heat pump defrosting system further includes No.1 triple valve (1), No. two triple valves (8) and four-way reversing valve
(7), wherein three interfaces of No.1 triple valve (1) are separately connected indoor heat exchanger (9), waste heat energy-storage module (2) and expansion valve
(4) one end, the interface of No. two triple valves (8) are separately connected the other end of indoor heat exchanger (9), waste heat energy-storage module (2)
The a interface of the other end and four-way reversing valve (7), the both ends of compressor (3) are separately connected the b interface of four-way reversing valve (7) and d connects
Mouthful, the both ends of outdoor heat exchanger (5) are separately connected the other end of expansion valve (4) and the c interface of four-way reversing valve (7).
3. a kind of air source heat pump defrosting system based on heat of compressor phase-change accumulation energy according to claim 2, special
Sign is, when compressor (3), four-way reversing valve (7) b interface, four-way reversing valve (7) a interface, No. two triple valves (8), interiors are changed
Hot device (9), No.1 triple valve (1), expansion valve (4), outdoor heat exchanger (5), four-way reversing valve (7) c interface and four-way reversing valve
(7) d interface in turn switches on and constitutes circulation, and when remaining connection disconnects, heating circuit is connected and works, air source heat pump defrosting system
System realizes the heat accumulation of heat accumulating (10) Yu waste heat energy-storage module (2) to indoor heating.
4. a kind of air source heat pump defrosting system based on heat of compressor phase-change accumulation energy according to claim 2, special
Sign is, when compressor (3), four-way reversing valve (7) b interface, four-way reversing valve (7) c interface, outdoor heat exchanger (5), expansion valve
(4), No.1 triple valve (1), waste heat energy-storage module (2), No. two triple valves (8), four-way reversing valve (7) a interface and four-way commutation
Valve (7) d interface in turn switches on and constitutes circulation, and when remaining connection disconnects, defrosting circuit is connected and works, at this point, indoor heat exchange
Continue filled with heat accumulating (10) to indoor heating in device (9), meanwhile, the heat of waste heat energy-storage module (2) storage is through freezing
Agent is recycled at outdoor heat exchanger (5) and defrosts.
5. a kind of air source heat pump defrosting system based on heat of compressor phase-change accumulation energy according to claim 2, special
Sign is that the indoor heat exchanger (9) includes tube side and shell side, wherein tube side both ends are separately connected No.1 triple valve (1) and two
Number triple valve (8), shell side both ends connect user side.
6. a kind of air source heat pump defrosting system based on heat of compressor phase-change accumulation energy according to claim 1, special
Sign is, is equipped with outdoor fan (6) by the outdoor heat exchanger (5).
7. a kind of air source heat pump defrosting system based on heat of compressor phase-change accumulation energy according to claim 1, special
Sign is that the heat accumulating (10) is PCM phase-change heat-storage material.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811011970.6A CN109341165A (en) | 2018-08-31 | 2018-08-31 | A kind of air source heat pump defrosting system based on heat of compressor phase-change accumulation energy |
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| CN201811011970.6A CN109341165A (en) | 2018-08-31 | 2018-08-31 | A kind of air source heat pump defrosting system based on heat of compressor phase-change accumulation energy |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109900047A (en) * | 2019-02-18 | 2019-06-18 | 北京工业大学 | Wind cooling refrigerator |
| CN111207570A (en) * | 2020-03-31 | 2020-05-29 | 郑州轻工业大学 | Energy-saving heat pump drying system and control method thereof |
| CN113503676A (en) * | 2021-07-01 | 2021-10-15 | 深圳市派沃新能源科技股份有限公司 | Air source heat pump defrosting method and air energy heat pump water chiller-heater unit |
| CN113531967A (en) * | 2021-06-24 | 2021-10-22 | 西安交通大学 | Compressor waste heat recovery defrosting system based on phase change energy storage and working method |
| CN114061176A (en) * | 2020-07-31 | 2022-02-18 | 上海海立电器有限公司 | Refrigeration system and defrosting control method thereof |
| CN114459167A (en) * | 2021-12-24 | 2022-05-10 | 青岛海尔空调电子有限公司 | Method and device for controlling air source heat pump and air source heat pump |
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