CN106766382A - A kind of self-defrosting type low-temperature air source heat harvester and its operation method - Google Patents
A kind of self-defrosting type low-temperature air source heat harvester and its operation method Download PDFInfo
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- CN106766382A CN106766382A CN201710044743.2A CN201710044743A CN106766382A CN 106766382 A CN106766382 A CN 106766382A CN 201710044743 A CN201710044743 A CN 201710044743A CN 106766382 A CN106766382 A CN 106766382A
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- 238000010257 thawing Methods 0.000 title claims abstract description 66
- 238000000034 method Methods 0.000 title claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 50
- 238000010521 absorption reaction Methods 0.000 claims abstract description 6
- 238000001816 cooling Methods 0.000 claims description 13
- 239000007788 liquid Substances 0.000 claims description 11
- 239000003507 refrigerant Substances 0.000 claims description 5
- 230000008676 import Effects 0.000 claims description 4
- 238000001704 evaporation Methods 0.000 claims 1
- 230000008020 evaporation Effects 0.000 claims 1
- 230000002045 lasting effect Effects 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000005057 refrigeration Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 241001124569 Lycaenidae Species 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
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
- F25B30/00—Heat pumps
- F25B30/06—Heat pumps characterised by the source of low potential heat
-
- 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
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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
- F25B2347/00—Details for preventing or removing deposits or corrosion
- F25B2347/02—Details of defrosting cycles
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
A kind of self-defrosting type low-temperature air source heat harvester and its operation method, including multigroup air refrigerating medium heat exchanger module in parallel and a small-size water source heat pump unit and corresponding function pipe-line system.Low temperature refrigerating medium flows through in the refrigerating medium coil pipe of air refrigerating medium heat exchanger module, and the heat in absorption air provides low-temperature heat source for user side water source heat pump units.When some air refrigerating medium heat exchanger module needs defrosting, then sub-fraction low temperature refrigerating medium is shunted from the total feed pipe of the refrigerating medium produced to be passed through in the evaporator of small-size water source heat pump unit, as the thermal source of small-size water source heat pump unit, the heat that small-size water source heat pump unit is produced, entered by refrigerating medium and effectively defrosting is completed in the air refrigerating medium heat exchanger module for needing defrosting, so as to ensure that air refrigerating medium heat exchanger group can continue normally to take heat from air, and be the lasting offer low-temperature heat source of user side water source heat pump units, ensure the normal heat demand of user.
Description
Technical field
The present invention relates to a kind of self-defrosting type low-temperature air source heat harvester and its operation method, belong to heat supply and sky
Tune field.
Background technology
Net for air-source heat pump units is a kind of efficient heating-cooling equipment, in the winter time, using air cooling heat exchanger from outdoor
Heat is taken in air, hot blast or hot water are produced as the low-temperature heat source of source pump.But in actual applications in practical application
There is a problem of frosting, particularly in the area that temperature is relatively low and humidity is very big, the frost of outdoor air cooling heat exchanger is especially
Seriously.Existing defrosting scheme has refrigerant inverse defrosting, thermal storage defrosting etc., and refrigerant inverse defrosting is not only needed from indoor heat exchange
Heat is taken in device, causes indoor intermitting heating, have a strong impact on the comfortableness of interior；Although hot-gas bypass and thermal storage defrosting can be extenuated
The fluctuation of indoor temperature, but defrosting heat, substantially from the electric energy of compressor, defrosting energy consumption is big.Chinese patent（Application number
201510779843.0）Propose the hot water produced using source pump and be passed through outdoor air-cooled heat exchange unit and defrosted, it is this
It is that one kind has in the centralized system heat driven heat pump heating system that mode is arranged near air-source heat harvester for source pump
The Defrost method of effect, but in the distributing heat pump heat distribution system of remote user end it is inapplicable for source pump scattering device
, its reason is that fed distance is excessive, transmission ＆ distribution energy consumption big, and big along journey thermal loss, thermal inertia is big, it is impossible to carry out defrosting in time
Deng.
Heat supply and air-conditioning, runing adjustment ratio are used for using distributing heat pump for residential housing and many office buildings
It is more convenient, the heat supplying air conditioning demand of personalization can be realized, and contribute to the realization of behavior energy saving.Distributing heat pump winter
Heat is taken from air, defrosting problem is equally faced.Therefore, research and development can defrost on the spot, with high-efficiency and continuous heat supply, reliable
The features such as air-source heat harvester be further development and lifting distributing air source heat pump system efficiency important way
Footpath.
The content of the invention
Based on above-mentioned background, for problem present in distributing heat pump user's winter operation, the present invention proposes one kind certainly
Defrosting formula low-temperature air source heat harvester and its operation method, it is empty using air-refrigerating medium heat exchanger module group collection
Low grade heat energy in gas, and air source heat exchanger highly effective defrosting on the spot can be realized, it is ensured that heat pump user continues normal heat supply
Demand.
Technical scheme is as follows：
A kind of band is from the low-temperature air source heat harvester of the function that defrosts, including multigroup air-refrigerating medium heat exchanger in parallel
Module, small-size water source heat pump unit and the pipe-line system of corresponding function is realized, the air-refrigerating medium heat exchanger mould in parallel
The heat exchange coil of block is imported and exported and is separately installed with refrigerating medium and takes hot in-let dimple valve, take hot control of export valve and defrost into
Mouth control valve, defrosting outlet control valve, the valve in the refrigerating medium the import and export pipeline of air-refrigerating medium heat exchanger module can
To be that two-way valve can also replace two two-way valves to realize the switching between pipeline with a triple valve, heat pump user passes through refrigerating
The thermal control valve that takes of the total feed pipe of agent and the total liquid back pipe of refrigerating medium and air-refrigerating medium heat exchanger module constitutes user and takes heat and follows
Ring loop, is provided with valve and takes hot recycle pump on the loop.Setting one is supporting with the air-refrigerating medium heat exchanger module
Small-size water source heat pump unit, the evaporator of the small-size water source heat pump unit always supplied with refrigerating medium respectively by refrigerating medium branch pipe
Liquid pipe and the total liquid back pipe connection of refrigerating medium, and in the total feed pipe of leading portion refrigerating medium of the evaporator for entering small-size water source heat pump unit
Upper setting takes hot recycle pump；The condenser of the small-size water source heat pump unit is by refrigerating medium defroster duct and air-refrigerating medium
The defrosting control valve of heat exchanger module constitutes defrosting circulation loop, and defrosting circulating pump is provided with the loop.
During Winter heat supply, when outside air temperature is of a relatively high, small-size water source heat pump unit is not run, and defrosting valve is closed automatically
Close, take hot valve opening, the heat exchange coil that low temperature refrigerating medium passes through air-refrigerating medium heat exchanger module, the heat in absorption air
Heat pump user is transported to along the total feed pipe of refrigerating medium under the driving for taking hot recycle pump after amount, user provides Low Temperature Thermal for heat pump
Source, after heat release at heat pump user, continues to take heat in returning to air-refrigerating medium heat exchanger module along the total liquid back pipe of refrigerating medium,
Circulated with this, for heat pump user provides continual and steady low-temperature heat source.
When outside air temperature is relatively low, when there is frosting in air-refrigerating medium heat exchanger module longtime running, small-sized water source heat
Pump assembly automatic, defrosting valve is automatically opened up.The heat exchange disk that low temperature refrigerating medium passes through air-refrigerating medium heat exchanger module
Pipe, small-size water source heat pump is entered into after the heat in absorption air along the total feed pipe sub-fraction of refrigerating medium by refrigerant branch pipe
In the evaporator of unit, remaining major part is transported to heat pump user, is the offer low-temperature heat source of heat pump user, in heat pump user
After place's heat release, return to and continue to take heat in air-refrigerating medium heat exchanger module, circulated with this, continue surely for heat pump user provides
Fixed low-temperature heat source.At the same time, the low temperature refrigerating medium entered into the evaporator of small-size water source heat pump unit is in evaporator
Heat release, used as the low-temperature heat source of small-size water source heat pump unit, the high temperature refrigerating medium that small-size water source heat pump unit is produced is followed in defrosting
Under the driving of ring pump in the control valve that defrosts enters the air-refrigerating medium heat exchanger module for needing defrosting after heat release defrost again
Continuation is absorbed heat for the defrosting of next round is prepared in returning to the condenser of small-size water source heat pump unit.It is empty with this guarantee section
When gas-refrigerating medium heat exchanger module defrosts, also air-refrigerating medium heat exchanger module can normal work ensureing heat pump user
Heat demand.
The present invention has following outstanding advantages and significant technique effect
1）The present apparatus ensure that and continued using the low grade heat energy in air-refrigerating medium heat exchanger module group collection air
It is continual to meet the demand of distributing heat pump user for user side water source heat pump units normally provide low-temperature heat source and low
The transmission ＆ distribution of temperature-heat-source need not carry out pipe insulation, and the cost of pipe-line system, investment reduction can be greatly reduced.
2）Multigroup air-refrigerating medium heat exchanger modular combination, ensure that under defrosting operating condition, not influence user normal
Take heat.
3）The present apparatus can be used in combination with the natural energy resources harvester such as cooling tower, ground heat exchanger, realize heat supply,
Refrigeration is double efficiently.
Generally speaking, ensure that the low-temperature air source heat for continuing efficiently to take heat gathers dress the invention provides a kind of
Put, and solve the problems, such as that refrigerating medium transmission ＆ distribution pipe-line system is incubated high cost, for heat pump user provides one kind continually and steadily
Reliable low-temperature heat source.
Brief description of the drawings
Fig. 1 is that a kind of band disclosed by the invention shows from the body construction of the low-temperature air source heat harvester of defrosting function
It is intended to.
Fig. 2 for the present invention in air-refrigerating medium heat exchanger module it is continual for heat pump user provides low temperature refrigerating medium
Schematic diagram.
Fig. 3 is air-refrigerating medium heat exchanger module defrosting mode schematic diagram in the present invention.
Fig. 4 be a kind of self-defrosting type low-temperature air source heat harvester of the invention and its operation method with cooling tower,
A kind of structural representation of embodiment that the natural energy resources harvester such as buried tube heat exchanger is used in combination.
The component names marked in figure are as follows：3- air-refrigerating medium heat exchanger module；Air-refrigerating that 3a- is defrosting
Agent heat exchanger module；3b- normally takes the air-refrigerating medium heat exchanger module of heat；6- defrosting circulating pumps；7- small-size water source heat pump machines
Group；8- evaporator side draws heat control valve (HCV) door；9- refrigerating medium coil pipes；14- condensers；15- takes hot recycle pump；16- evaporators；17-
Refrigerating medium branch pipe；The total feed pipe of 18- refrigerating mediums；19- distributing heat pump users；The total liquid back pipe of 20- refrigerating mediums；21- refrigerating mediums are removed
White pipeline；22- other available natural energy resources harvesters；1st, 4,10,12- takes thermal control valve；2nd, 5,11,13- defrosting controls
Valve processed.
Specific embodiment
Structure of the invention, operation principle and operational mode are further elaborated below in conjunction with the accompanying drawings.
Fig. 1 is that a kind of band disclosed by the invention shows from the body construction of the low-temperature air source heat harvester of defrosting function
It is intended to.A kind of band is from the low-temperature air source heat harvester of the function that defrosts, including multigroup air-refrigerating medium heat exchanger in parallel
Module 3, small-size water source heat pump unit 7 and the pipe-line system of corresponding function is realized, the air-refrigerating medium heat exchanger in parallel
The heat exchange coil 9 of module 3 is imported and exported and is separately installed with refrigerating medium and takes hot in-let dimple valve 1,4, take hot control of export valve 10,
12 and defrosting in-let dimple valve 2,5, defrosting outlet control valve 11,13, the refrigerating of air-refrigerating medium heat exchanger module 3
Valve 1,2,4,5,10,11,12,13 in agent the import and export pipeline can be that two-way valve can also replace two with a triple valve
Two-way valve realizes the switching between pipeline, and heat pump user 19 is by the total feed pipe 18 of refrigerating medium and the total liquid back pipe 20 of refrigerating medium and sky
The composition user of thermal control valve 1,4,10,12 that takes of gas-refrigerating medium heat exchanger module 3 takes thermal cycle loop, is set on the loop
Have and valve and take hot recycle pump 15, it is characterised in that set one it is supporting with the air-refrigerating medium heat exchanger module 3 small
Type water source heat pump units 7, the evaporator 16 of the small-size water source heat pump unit 7 is total with refrigerating medium respectively by refrigerating medium branch pipe 17
Feed pipe 18 and the total liquid back pipe 20 of refrigerating medium are connected, and in the leading portion refrigerating of the evaporator 16 for entering small-size water source heat pump unit 7
Set on the total feed pipe 18 of agent and take hot recycle pump 15；The condenser 14 of the small-size water source heat pump unit 7 is defrosted by refrigerating medium
Pipeline 21 constitutes defrosting circulation loop, the loop with the defrosting control valve 2,5,11,13 of air-refrigerating medium heat exchanger module 3
On be provided with defrosting circulating pump 6.
Fig. 2 for the present invention in air-refrigerating medium heat exchanger module it is continual for heat pump user provides low temperature refrigerating medium
Schematic diagram.During Winter heat supply, when outside air temperature is of a relatively high, small-size water source heat pump unit 7 does not run, and defrosting valve is automatic
Close, take thermal valve door 1/4/10/12 and open, the heat exchange coil 9 that low temperature refrigerating medium passes through air-refrigerating medium heat exchanger module 3 is inhaled
Heat pump user 19 is transported to along the total feed pipe 18 of refrigerating medium under the driving for taking hot recycle pump 15 after receiving the heat in air, is heat
Pump user 19 provides low-temperature heat source, after heat release at heat pump user 19, air-refrigerating medium is returned to along the total liquid back pipe 20 of refrigerating medium
Continue to take heat in heat exchanger module 3, circulated with this, be that heat pump user 19 provides continual and steady low-temperature heat source.Due to heat pump
The conveying of user 19 is that low-temperature heat source need not carry out pipe insulation, and the cost of pipe-line system, investment reduction can be greatly reduced.
Fig. 3 for the present invention in air-refrigerating medium heat exchanger module take hot defrosting mode schematic diagram.During Winter heat supply, work as room
Outer temperature is relatively low, and when frosting occurs in air-longtime running of refrigerating medium heat exchanger module 3, small-size water source heat pump unit 7 is automatic
Start, defrosting valve is automatically opened up.The heat exchange coil 9 that low temperature refrigerating medium passes through air-refrigerating medium heat exchanger module 3b, absorbs empty
Small-size water source heat pump unit is entered into by refrigerant branch pipe 17 along refrigerating medium total sub-fraction of feed pipe 18 after heat in gas
In 15 evaporator 16, remaining major part is transported to heat pump user 19, is the offer low-temperature heat source of heat pump user 19, in heat pump
At user 19 after heat release, return to and continue to take heat in air-refrigerating medium heat exchanger module 3b, circulated with this, be heat pump user 19
Continual and steady low-temperature heat source is provided.At the same time, the low temperature refrigerating entered into the evaporator 16 of small-size water source heat pump unit 7
Agent heat release in evaporator 16, as the low-temperature heat source of small-size water source heat pump unit 7, the height that small-size water source heat pump unit 7 is produced
Warm refrigerating medium enters the air-refrigerating medium heat exchanger for needing defrosting under the driving of defrosting circulating pump 6 by the control valve 2 that defrosts
Again return to continue the defrosting that heat absorption is next round in the condenser 14 of small-size water source heat pump unit 7 after heat release defrost in module 3a
Prepare.When being defrosted with this guarantee section air-refrigerating medium heat exchanger module 3a, also air-refrigerating medium heat exchanger module 3b
Can normal work ensureing the heat demand of heat pump user 19.
Fig. 4 be a kind of self-defrosting type low-temperature air source heat harvester of the invention and its operation method with cooling tower,
A kind of structural representation of embodiment that the natural energy resources harvester such as buried tube heat exchanger is used in combination.Wherein, other natural energies
Source harvester can be conventional ground heat exchanger, cooling tower, solar thermal collector etc. by side in series or in parallel
Formula and a kind of this self-defrosting type low-temperature air source heat harvester of the invention and its operation method cooperation.With the present invention one
Its operation logic is entered as a example by the combination for planting self-defrosting type low-temperature air source heat harvester and its operation method and cooling tower
Row explanation.
A kind of self-defrosting type low-temperature air source heat harvester of the present invention and its operation method are combined with cooling tower can
It is double efficiently with heat supply, the refrigeration of realizing heat pump user.When summer heat pump user 19 needs refrigeration, air-refrigerating medium heat exchanger
Module 3 and small-size water source heat pump unit 7 are out of service, and cooling tower 22 runs.From the cooling water out of heat pump user 19 in water
The heat release of cooling tower 22 is entered into the presence of pump 15, is continued in the condenser for returning to heat pump user 19 after water temperature reduction along pipeline
Take away condensation heat, it is ensured that the highly effective refrigeration of heat pump user 19.When needing to heat in the winter time, cooling tower 22 is closed, and air-refrigerating medium is changed
Hot device module 3 and small-size water source heat pump unit 7 start normal operation, and completion takes heat or defrosting process from air, it is ensured that
Continual picture heat pump user 19 provides low-temperature heat source.
Claims (3)
1. a kind of low-temperature air source heat harvester of oneself defrosting function of band, including multigroup air in parallel-refrigerating medium heat exchange
Device module（3）, small-size water source heat pump unit（7）And realize the pipe-line system of corresponding function, the air-refrigerating medium in parallel
Heat exchanger module（3）Heat exchange coil（9）Import and export are separately installed with refrigerating medium and take hot in-let dimple valve（1）、（4）, take heat
Control of export valve（10）、（12）And defrosting in-let dimple valve（2）、（5）, defrosting outlet control valve（11）、（13）, it is empty
Gas-refrigerating medium heat exchanger module（3）Refrigerating medium the import and export pipeline on valve（1）、（2）、（4）、（5）、（10）、（11）、
（12）、（13）Can be that two-way valve can also replace two two-way valves to realize the switching between pipeline, heat pump with a triple valve
User（19）By the total feed pipe of refrigerating medium（18）With the total liquid back pipe of refrigerating medium（20）With air-refrigerating medium heat exchanger module（3）
Take thermal control valve（1）、（4）、（10）、（12）Constitute user and take thermal cycle loop, valve is provided with the loop and heat is taken
Circulating pump（15）, it is characterised in that one is set with the air-refrigerating medium heat exchanger module（3）Supporting small-sized water source heat
Pump assembly（7）, the small-size water source heat pump unit（7）Evaporator（16）By refrigerating medium branch pipe（17）It is total with refrigerating medium respectively
Feed pipe（18）With the total liquid back pipe of refrigerating medium（20）Connection, and entering small-size water source heat pump unit（7）Evaporator（16）'s
The total feed pipe of leading portion refrigerating medium（18）Upper setting takes hot recycle pump（15）；The small-size water source heat pump unit（7）Condenser
（14）By refrigerating medium defroster duct（21）With air-refrigerating medium heat exchanger module（3）Defrosting control valve（2）、（5）、
（11）、（13）Defrosting circulation loop is constituted, defrosting circulating pump is provided with the loop（6）.
2. a kind of band according to claim 1 from defrost function low-temperature air source heat harvester operation method,
It is characterized in that the operation method includes following operational mode：
A. heat not defrosting mode is taken：During Winter heat supply, when outside air temperature is of a relatively high, small-size water source heat pump unit（7）Do not transport
OK, defrosting valve is automatically switched off, and takes thermal valve door（1）/（4）/（10）/（12）Open, low temperature refrigerating medium is changed by air-refrigerating medium
Hot device module（3）Heat exchange coil（9）, hot recycle pump is being taken after the heat in absorption air（15）Driving under it is total along refrigerating medium
Feed pipe（18）It is transported to heat pump user（19）, it is heat pump user（19）Low-temperature heat source is provided, in heat pump user（19）Place's heat release
Afterwards, along the total liquid back pipe of refrigerating medium（20）Return to air-refrigerating medium heat exchanger module（3）In continue to take heat, circulated with this, be heat
Pump user（19）Continual and steady low-temperature heat source is provided；
B. take heat and take into account defrosting mode：During Winter heat supply, when outside air temperature is relatively low, air-refrigerating medium heat exchanger module
（3）When there is frosting in longtime running, small-size water source heat pump unit（7）Automatic, defrosting valve is automatically opened up；Low temperature refrigerating medium
By air-refrigerating medium heat exchanger module（3b）Heat exchange coil（9）, along the total feed pipe of refrigerating medium after the heat in absorption air
（18）Sub-fraction passes through refrigerant branch pipe（17）Enter into small-size water source heat pump unit（15）Evaporator（16）In, it is remaining
Major part is transported to heat pump user（19）, it is heat pump user（19）Offer low-temperature heat source, in heat pump user（19）After place's heat release,
Return to air-refrigerating medium heat exchanger module（3b）In continue to take heat, circulated with this, be heat pump user（19）There is provided continual and steady
Low-temperature heat source；At the same time, small-size water source heat pump unit is entered into（7）Evaporator（16）In low temperature refrigerating medium evaporation
Device（16）Middle heat release, as small-size water source heat pump unit（7）Low-temperature heat source, small-size water source heat pump unit（7）The high temperature produced
Refrigerating medium is in defrosting circulating pump（6）Driving under by the control valve that defrosts（2）Into the air-refrigerating medium heat exchange for needing defrosting
Device module（3a）Small-size water source heat pump unit is again returned to after middle heat release defrost（7）Condenser（14）It is next that middle continuation is absorbed heat
The defrosting of wheel is prepared；With this guarantee section air-refrigerating medium heat exchanger module（3a）During defrosting, also air-refrigerating medium is changed
Hot device module（3b）Can normal work ensureing heat pump user（19）Heat demand.
3. a kind of self-defrosting type low-temperature air source heat harvester according to claim 1 and its operation method, it is special
Levy and be, using air-refrigerating medium heat exchanger module（3）Low-grade natural energy resources in collection air are used to meet the heat of user
Demand, can also be by including the natural energy resources harvester including cooling tower, underground pipe, solar thermal collector（22）With the present apparatus
In air-refrigerating medium heat exchanger module（3）It is in series or in parallel to use.
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| CN201710044743.2A CN106766382A (en) | 2017-01-19 | 2017-01-19 | A kind of self-defrosting type low-temperature air source heat harvester and its operation method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108151367A (en) * | 2017-12-25 | 2018-06-12 | 北京中矿博能节能科技有限公司 | Direct-cooling type depth enthalpy takes hot idle air heat pump system defrosting group control method |
| CN108151362A (en) * | 2017-12-22 | 2018-06-12 | 台州龙江化工机械科技有限公司 | A kind of refrigeration system |
| CN108850127A (en) * | 2018-09-10 | 2018-11-23 | 西南大学 | A kind of heat pump assembly and heat treatment method of citrus anti-corrosive fresh-keeping and sterilization |
| CN111998581A (en) * | 2020-09-10 | 2020-11-27 | 清华大学 | Self-defrosting type air source heat collecting device and operation method thereof |
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