CN209495387U - Low ambient temperature air-source heat-pump air heater with concurrent heating defrosting control loop - Google Patents
Low ambient temperature air-source heat-pump air heater with concurrent heating defrosting control loop Download PDFInfo
- Publication number
- CN209495387U CN209495387U CN201822233247.4U CN201822233247U CN209495387U CN 209495387 U CN209495387 U CN 209495387U CN 201822233247 U CN201822233247 U CN 201822233247U CN 209495387 U CN209495387 U CN 209495387U
- Authority
- CN
- China
- Prior art keywords
- concurrent heating
- heat exchanger
- valve
- evaporator
- source heat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/13—Hot air central heating systems using heat pumps
Landscapes
- Air Conditioning Control Device (AREA)
Abstract
The utility model provides a kind of low ambient temperature air-source heat-pump air heater with concurrent heating defrosting control loop, in which: the air-source heat-pump air heater includes compressor, indoor heat exchanger, main road electric expansion valve and the evaporator that connection is formed by four-way valve；Concurrent heating defroster duct is had additional on the evaporator, collection heat exchanger is had additional on the pipeline between compressor and four-way valve, the concurrent heating defroster duct and the collection heat exchanger constitute concurrent heating defrosting circuit, and variable-frequency electric valve is equipped on circuit.When air source heat pump works normally, medium in the collection heat exchanger can store heat, and when outdoor temperature is too low, the variable-frequency electric valve is opened, the heat transfer stored in collection heat exchanger is set to give concurrent heating defrosting circuit, concurrent heating defrosting circuit can defrost to evaporator.
Description
Technical field
The utility model relates to a kind of low ambient temperature air-source heat-pump air heaters with concurrent heating defrosting control loop
Structure.
Background technique
Existing low ambient temperature air-source heat-pump air heater product, heat-supplying mode is warm-air type heat supply, relative to water system
Unite water heating heat pump product, extract more heats from air using air heating needs, and be limited by limitation between mounting hole, at
The problems such as this limitation, majority air-heater can only meet relatively low heating demands at present.In addition low ambient temperature air source heat pump
There is still a need for defrosting, water system water heating heat pump product water routes can store certain heat for air-heater, recycles and carries out in compressor inverse
When defrosting, the heat of water storage is unlikely to reduce rapidly room temperature, and air-heater is when defrosting, indoor cold
Condenser becomes evaporator, the draw heat from room air, reduces room temperature, makes system for thermally labile.
Utility model content
The purpose of the utility model is to provide a kind of low ambient temperature air source heat pumps with concurrent heating defrosting control loop
Air-heater makes it under the premise of not influencing current existing low ambient temperature air-source heat-pump air heater and continuing heat supply, utilization
The heat that compressor generates provides heat for evaporator, and defrosting is reached while to have the function that concurrent heating.
In order to achieve the above purposes, the technical solution adopted by the utility model is:
A kind of low ambient temperature air-source heat-pump air heater with concurrent heating defrosting control loop, in which:
The air-source heat-pump air heater includes compressor, indoor heat exchanger, the main road electricity that connection is formed by four-way valve
Sub- expansion valve and evaporator；It is characterized by:
Concurrent heating defroster duct is had additional on the evaporator, and collection is had additional on the pipeline between compressor and four-way valve
Heat exchanger, the concurrent heating defroster duct and the collection heat exchanger constitute concurrent heating defrosting circuit, and frequency conversion is equipped on circuit
Motor-driven valve.
The low ambient temperature air-source heat-pump air heater with concurrent heating defrosting control loop, in which: the compression
The output end of machine enters the four-way valve after passing through the collection heat exchanger, and the four-way valve wherein returns to the compression all the way
In addition machine is connected to indoor heat exchanger all the way, indoor heat exchanger is divided into two branches after heat exchange, wherein a branch passes through
Air injection enthalpy-increasing electric expansion valve enters back into after economizer released cold quantity, into main road electric expansion valve, in addition a branch into
Enter and return to compressor after the economizer is too cold, the main road electric expansion valve is connected to the evaporator again, and returns
The four-way valve.
The low ambient temperature air-source heat-pump air heater with concurrent heating defrosting control loop, in which: the interior
Heat exchanger side is equipped with indoor centrifugal blower.
The low ambient temperature air-source heat-pump air heater with concurrent heating defrosting control loop, in which: the evaporation
Device side is equipped with outdoor axial flow blower.
Compared with prior art, the utility model by adopting the above technical scheme, which has advantages in that, works as air-source
When heat pump works normally, the medium in the collection heat exchanger can store heat, and when outdoor temperature is too low, the frequency conversion
Motor-driven valve is opened, and so that the heat transfer stored in collection heat exchanger is given concurrent heating defrosting circuit, concurrent heating defrosts circuit can be to evaporation
Device defrosts.
Detailed description of the invention
Fig. 1 is the structure principle chart of the utility model.
Description of symbols: centrifugal blower in the room 1-；2- indoor heat exchanger；3- device for drying and filtering；4- air injection enthalpy-increasing electronics
Expansion valve；5- economizer；6- main road electric expansion valve；7- evaporator；Axial flow blower outside the room 8-；9- four-way valve；10- variable-frequency electric
Valve；11- collection heat exchanger；12- compressor.
Specific embodiment
As shown in Figure 1, the utility model provides a kind of low ambient temperature air-source heat with concurrent heating defrosting control loop
Pump air-heater, in which:
The air-source heat-pump air heater includes the compressor 12, indoor heat exchanger 2, master that connection is formed by four-way valve 9
Road electric expansion valve 6 and evaporator 7；
And the utility model is that concurrent heating defroster duct is had additional on the evaporator 7, compressor 12 and four-way valve 9 it
Between pipeline on have additional collection heat exchanger 11, the concurrent heating defroster duct and the collection heat exchanger 11 composition concurrent heating defrost back
Road, and variable-frequency electric valve 10 is equipped on circuit；
When air source heat pump works normally, the medium in the collection heat exchanger 11 can store heat, and in outdoor
When temperature is too low, the variable-frequency electric valve 10 is opened, and the heat transfer stored in collection heat exchanger 11 is made to give concurrent heating defrosting circuit,
Concurrent heating defrosting circuit can defrost to evaporator 7.
In the present embodiment, in order to improve performance of the air-source heat-pump air heater under low environment, the utility model is also added
There is economizer 5.Specifically, the output end of compressor 12 is by entering four-way valve 9, four-way valve 9 after the collection heat exchanger 11
Wherein return to the compressor 12 all the way, be in addition connected to indoor heat exchanger 2 all the way, after indoor heat exchanger 2 exchanges heat, pass through
Device for drying and filtering 3 is further divided into two branches, releases wherein a branch enters back into economizer 5 by air injection enthalpy-increasing electric expansion valve 4
After the amount of letting cool, into main road electric expansion valve 6, in addition a branch, which enters after the economizer 5 is too cold, returns to compression
Machine 12, the main road electric expansion valve 6 are connected to the evaporator 7 again, and return to the four-way valve 9；The indoor heat exchanger 2
Side is equipped with indoor centrifugal blower 1, and 7 side of evaporator is equipped with outdoor axial flow blower 8.
When the utility model uses:
A: when outdoor temperature is lower, control system for heat pump judge heat pump it is impossible to meet indoor heating demand when
Time starts variable-frequency electric valve 10, gives a part of heat of compressor 12 to concurrent heating defrosting circuit by the exchange of collection heat exchanger 11,
Then evaporator 7 is transferred heat to by concurrent heating defroster duct, and passes through outdoor axial flow blower 8 for the heat on evaporator 7
Diffusion passes to major loop pipeline, and in this state, evaporator 7 plays maximum endothermic effect, improves entire heat pump system
Heating capacity；
B: under defrosting operating condition, control system for heat pump judgement needs to defrost, then starts variable-frequency electric valve 10, by compressor 12
A part of heat give concurrent heating to defrost circuit by the collection exchange of heat exchanger 11, then by concurrent heating defroster duct by heat transfer
To evaporator 7, and it is maximum by the frequency that control system adjusts variable-frequency electric valve 10, maximum heat is brought into evaporation to reach
Device 7 realizes defrosting.
It is described above to be merely exemplary for the utility model, and not restrictive, those of ordinary skill in the art
Understand, without departing from the spirit and scope defined by the claims, can many modifications may be made, variation or it is equivalent, but
It falls within the protection scope of the utility model.
Claims (4)
1. a kind of low ambient temperature air-source heat-pump air heater with concurrent heating defrosting control loop, in which:
The air-source heat-pump air heater includes swollen by compressor, indoor heat exchanger, the main road electronics of four-way valve formation connection
Swollen valve and evaporator；It is characterized by:
Concurrent heating defroster duct is had additional on the evaporator, is had additional thermal-arrest on the pipeline between compressor and four-way valve and is changed
Hot device, the concurrent heating defroster duct and the collection heat exchanger constitute concurrent heating defrosting circuit, and variable-frequency electric is equipped on circuit
Valve.
2. the low ambient temperature air-source heat-pump air heater according to claim 1 with concurrent heating defrosting control loop,
Be characterized in that: the output end of the compressor passes through after the collection heat exchanger into the four-way valve, the four-way valve its
In return to the compressor all the way, be in addition connected to indoor heat exchanger all the way, indoor heat exchanger is divided into two branch after heat exchange
Road, wherein a branch enters back into after economizer released cold quantity by air injection enthalpy-increasing electric expansion valve, it is swollen into main road electronics
Swollen valve, in addition a branch, which enters after the economizer is too cold, returns to compressor, and the main road electric expansion valve is connected to again
The extremely evaporator, and return to the four-way valve.
3. the low ambient temperature air-source heat-pump air heater according to claim 1 with concurrent heating defrosting control loop,
Be characterized in that: the indoor heat exchanger side is equipped with indoor centrifugal blower.
4. the low ambient temperature air-source heat-pump air heater according to claim 1 with concurrent heating defrosting control loop,
Be characterized in that: the evaporator side is equipped with outdoor axial flow blower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822233247.4U CN209495387U (en) | 2018-12-28 | 2018-12-28 | Low ambient temperature air-source heat-pump air heater with concurrent heating defrosting control loop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822233247.4U CN209495387U (en) | 2018-12-28 | 2018-12-28 | Low ambient temperature air-source heat-pump air heater with concurrent heating defrosting control loop |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209495387U true CN209495387U (en) | 2019-10-15 |
Family
ID=68154094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822233247.4U Active CN209495387U (en) | 2018-12-28 | 2018-12-28 | Low ambient temperature air-source heat-pump air heater with concurrent heating defrosting control loop |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209495387U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111998581A (en) * | 2020-09-10 | 2020-11-27 | 清华大学 | Self-defrosting type air source heat collecting device and operation method thereof |
| CN117581065A (en) * | 2021-02-07 | 2024-02-20 | 八达通能源供暖有限公司 | Method and system for performing a heat pump defrost cycle |
-
2018
- 2018-12-28 CN CN201822233247.4U patent/CN209495387U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111998581A (en) * | 2020-09-10 | 2020-11-27 | 清华大学 | Self-defrosting type air source heat collecting device and operation method thereof |
| CN111998581B (en) * | 2020-09-10 | 2024-03-19 | 清华大学 | Self-defrosting air source heat collection device and operation method thereof |
| CN117581065A (en) * | 2021-02-07 | 2024-02-20 | 八达通能源供暖有限公司 | Method and system for performing a heat pump defrost cycle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203163329U (en) | Air conditioner | |
| CN109028650A (en) | A kind of multi-gang air-conditioner hot water integrated machine | |
| CN110154683A (en) | A kind of heat management system and its new-energy automobile | |
| CN103574987B (en) | Cold and hot multi-functional economizer system | |
| CN106524389A (en) | Air conditioner defrosting method and air conditioner thereof | |
| CN103411349B (en) | Integration air energy source pump | |
| CN204730374U (en) | A kind of accumulating type air-conditioning system | |
| CN206269278U (en) | Air-source heat pump air conditioning system and the air-conditioning comprising it | |
| KR102456826B1 (en) | Heat pump system for vehicle | |
| CN105352042A (en) | Air conditioner indoor unit and air conditioner | |
| CN210821724U (en) | Thermal management system and new energy automobile thereof | |
| CN103900184A (en) | Water cooling medium three-pipe refrigerating and heating air-conditioning system | |
| CN209495387U (en) | Low ambient temperature air-source heat-pump air heater with concurrent heating defrosting control loop | |
| CN108688434A (en) | Air conditioner for vehicles | |
| CN205747589U (en) | A kind of heat-exchange system and there is the heat pump of defrosting function | |
| CN103388922B (en) | Dual-compressor multifunctional air source heat pump air conditioner system | |
| CN203501540U (en) | Integrated air energy heat pump unit | |
| CN211526570U (en) | Outdoor unit and composite heat pump system | |
| CN106839095A (en) | The complementary air conditioner and heat pump unit of solar electrothermal and control method | |
| CN201992752U (en) | Air conditioner | |
| CN106225280A (en) | A kind of refrigeration or heat pump and a kind of Condensing units | |
| CN101957089A (en) | Refrigerating device of air conditioner and household air conditioning system thereof | |
| CN107741102A (en) | A kind of heat pump apparatus of air source with the annual operation of heat-pipe radiator | |
| KR100531653B1 (en) | Dual heat pump system | |
| CN109186122A (en) | A kind of air-source trilogy supply machine set system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |