CN207197017U - A kind of air source heat pump quick defrosting apparatus - Google Patents
A kind of air source heat pump quick defrosting apparatus Download PDFInfo
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- CN207197017U CN207197017U CN201721000064.7U CN201721000064U CN207197017U CN 207197017 U CN207197017 U CN 207197017U CN 201721000064 U CN201721000064 U CN 201721000064U CN 207197017 U CN207197017 U CN 207197017U
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- compressor
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- evaporator
- expansion valve
- heat pump
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Abstract
The utility model discloses a kind of air source heat pump quick defrosting apparatus, including compressor, four-way valve, evaporator, expansion valve, condenser, water circulating pump and throttle mechanism, the first end of the compressor is connected with the first end of four-way valve, second end of four-way valve is connected with the input of compressor, the three-terminal link of four-way valve has the output end of compressor, 4th end of four-way valve is connected with evaporator, evaporator is connected with the first end of expansion valve by pipeline, second end of expansion valve is connected to the second end of compressor, water circulating pump is also associated with second end of compressor, throttle mechanism is parallel with the expansion valve；The air source heat pump quick defrosting apparatus can quickly defrosting and heating and defrosting mode switching it is rapid.
Description
Technical field
A kind of air source heat pump defrosting mechanism technology field is the utility model is related to, more specifically, it relates to a kind of empty
Air supply heat pump quick defrosting apparatus.
Background technology
Air source heat pump is a kind of principle using inverse Carnot cycle, by the heat energy transfer of low level heat energy to high-order thermal source
Device.Due to this property of heat pump, it is used in the heat energy transmission high temp objects in cryogenic object, then high temp objects are used
To heat water or heating, heat is set to be fully used.To complete normal heating circulation, air source heat pump must pass through outdoor
Unit evaporator spills into heat among environment, still, when environment temperature is relatively low and humidity is larger, the evaporator plate of heat pump
Frost occurs on pipe fin, white formation has obstructed contact of the fin with air, not only added air to evaporator
The thermal resistance of fin heat transfer, also reduces the area of air communication channel, reduces the flow of air, and evaporating temperature reduces, in frost
After thickness degree continues increase, the circulation of air is even completely stopping, and the heating capacity of source pump even pauses degradation.
To make source pump to be worked on after there is frosting situation, it is necessary to defrosting is carried out to evaporator, to go to defrost
Layer influences, and lifts unit heating capacity, still, during unit defrosting, system circulation will be reverse when heating operation, also
To say, during defrosting, indoor heat not but not increase, can quickly be lost on the contrary, therefore, reduce defrosting process and when
Between, it is the important means for lifting winter heat pump work efficiency.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of air source heat pump quickly defrosting
Device, its can quickly defrosting and heating and defrosting mode switching it is rapid.
To achieve the above object, the utility model provides following technical scheme：
A kind of air source heat pump quick defrosting apparatus, including compressor, four-way valve, evaporator, expansion valve, condenser, follow
Ring water pump and throttle mechanism, the first end of the compressor are connected with the first end of four-way valve, the second end connection of four-way valve
There is the input of compressor, the three-terminal link of four-way valve has the output end of compressor, and the 4th end of four-way valve is connected with evaporation
Device, evaporator are connected with the first end of expansion valve by pipeline, and the second end of expansion valve is connected to the second end of compressor, compression
Water circulating pump is also associated with second end of machine, throttle mechanism is parallel with the expansion valve.
Preferably, the throttle mechanism includes three-way connection A, three-way connection B, check valve and capillary, described three
Pass joint A first end is connected on evaporator, and three-way connection A the second end is connected in the first end of expansion valve, and three connect
Head A three-terminal link is on the input of check valve, and the output end of check valve is connected with capillary, and capillary is connected to threeway
On joint B the 3rd end, three-way connection B the second end is connected on the second end of compressor, three-way connection B three-terminal link
In on the second end of expansion valve.
Preferably, the evaporator side is additionally provided with cooling fan.
Compared with prior art, the utility model has the advantages that：Pass through the side of the throttle mechanism in parallel by main throttling arrangement
Formula so that the cold media gas of high temperature in condenser quickly can be filled with evaporator by source pump when entering defrosting circulation, with
Evaporator temperature is lifted rapidly, so that the frost layer of evaporator surface attachment quickly dissolves, complete to remove within the most short time
Frost work, and normal heating mode is switched back into rapidly, the loss of heat and efficiency is reduced, and be connected with throttle mechanism in parallel
Check valve, in system normal heating process, the flow direction of refrigerant and check valve it is in opposite direction, so refrigerant will not pass through
This set mechanism, and normal heating circulation can be only carried out by main capillary, the ability efficiency of unit is all without because of mechanism
Increase and have any influence.
Brief description of the drawings
Fig. 1 is the structural representation of this practical air source heat pump quick defrosting apparatus；
Fig. 2 is that structure of the throttle mechanism not in parallel of this practical air source heat pump quick defrosting apparatus under heating condition is shown
It is intended to；
Fig. 3 is that structure of the throttle mechanism not in parallel of this practical air source heat pump quick defrosting apparatus under defrosting operating condition is shown
It is intended to；
Fig. 4 is the structural representation under the heating condition of this practical air source heat pump quick defrosting apparatus；
Fig. 5 is the structural representation under the defrosting operating condition of this practical air source heat pump quick defrosting apparatus.
Embodiment
As shown in figure 1, a kind of air source heat pump quick defrosting apparatus, including compressor 1, four-way valve 2, evaporator 3, expansion
Valve 4, condenser 5, water circulating pump 6 and throttle mechanism, the first end of the compressor 1 are connected with the first end of four-way valve 2, and four
Second end of port valve 2 is connected with the input of compressor 1, and the three-terminal link of four-way valve 2 has the output end of compressor 1, four-way
4th end of valve 2 is connected with evaporator 3, and evaporator 3 is connected with the first end of expansion valve 4, the second end of expansion valve 4 by pipeline
The second end of compressor 1 is connected to, water circulating pump 6 is also associated with the second end of compressor 1, is parallel with the expansion valve 4
Throttle mechanism.
The throttle mechanism includes three-way connection A8, three-way connection B9, check valve 10 and capillary 11, and described three connect
Head A8 first end is connected on evaporator 3, and three-way connection A8 the second end is connected in the first end of expansion valve 4, and three connect
For head A8 three-terminal link on the input of check valve 10, the output end of check valve 10 is connected with capillary 11, capillary 11
It is connected on three-way connection B9 the 3rd end, three-way connection B9 the second end is connected on the second end of compressor 1, three-way connection
B9 three-terminal link is on the second end of expansion valve 4.
The side of evaporator 3 is additionally provided with cooling fan 7.
Shown in Fig. 2, in the defroster not throttle mechanism in parallel, under heating condition, the exhaust outlet of compressor 1 exports
The refrigerant gas of HTHP, into four-way valve 2, now four-way valve 2 does not heat guiding, and refrigerant gas is imported into condenser
5 passages, refrigerant enter in condenser 5, and by the operation of water circulating pump 6, the energy in refrigerant is exported to recirculated water, system
After cryogen releases heat, it is condensed into the liquid of cryogenic high pressure and enters expansion valve 4, by the reducing pressure by regulating flow of expansion valve 4, be changed into low
The refrigerant liquid of warm low pressure, subsequently into evaporator 3, by the circulation of blower fan, absorb the heat in surrounding environment, refrigeration
Agent is evaporated to the gas of low-temp low-pressure, comes back in compressor 1, completes once heating circulation.
Shown in Fig. 3, in the defroster not throttle mechanism in parallel, under defrosting operating condition, the refrigerant of HTHP
Gas is exported by the exhaust outlet of compressor 1, and into four-way valve 2, now, four-way valve 2 switches to defrosting and is oriented to, by the system of HTHP
Refrigerant gas is imported in evaporator 3, is gradually melted the frost layer on the surface of evaporator 3 by the heat that refrigerant discharges.Herein
During defrosting, because the aperture of expansion valve 4 in a heating mode is smaller, when can cause to enter defrosting, pass through the refrigeration of expansion valve 4
Agent flux deficiency, the temperature of rapid lifting evaporator 3 is not enough to, and may be smaller due to aperture, cause the system for returning to compressor 1
Cryogen amount wretched insufficiency, consequently, it is possible to causing system low-voltage failure.
Shown in Fig. 4, in defroster throttle mechanism in parallel, under heating condition, the of three-way connection A8
Two ends are connected in the first end of expansion valve 4, and three-way connection A8 three-terminal link is on the input of check valve 10, check valve
10 output end is connected with capillary 11, and capillary 11 is connected on three-way connection B9 the 3rd end, and the second of three-way connection B9
End is connected on the second end of compressor 1, and on the second end of expansion valve 4, refrigerant exists three-way connection B9 three-terminal link
, can be by capillary 11 after three-way connection A8, but because the one-way conduction of check valve 1010 acts on, refrigerant can not pass through list
The bypass passageways formed to valve 1010 and capillary 1111, can only have been come by main channel, that is, the joint B of expansion valve 4 and three
Circulated into heating, refrigerant flow now and the cooling system agent flux without increase defrosting mechanism have no difference.
Shown in Fig. 5, in defroster throttle mechanism in parallel, under heating condition, the of three-way connection A8
Two ends are connected in the first end of expansion valve 4, and three-way connection A8 three-terminal link is on the input of check valve 10, check valve
10 output end is connected with capillary 11, and capillary 11 is connected on three-way connection B9 the 3rd end, and the second of three-way connection B9
End is connected on the second end of compressor 1, and on the second end of expansion valve 4, refrigerant exists three-way connection B9 three-terminal link
By the way that during three-way connection A8 three-way connection B9 can be passed to along expansion valve 4 and check valve 10 respectively, and then condenser 5 is reached, made
Source pump is obtained when entering defrosting circulation, quickly the cold media gas of high temperature in condenser 5 can be filled with evaporator 3, so that
The temperature of evaporator 3 is lifted rapidly, so that the frost layer of the surface attachment of evaporator 3 quickly dissolves, completes to remove within the most short time
Frost work, and normal heating mode is switched back into rapidly, reduce the loss of heat and efficiency.
Compared with prior art, the utility model has the advantages that：Pass through the side of the throttle mechanism in parallel by main throttling arrangement
Formula so that the cold media gas of high temperature in condenser 5 quickly can be filled with evaporator 3 by source pump when entering defrosting circulation,
So that the temperature of evaporator 3 is lifted rapidly, so that the frost layer of the surface attachment of evaporator 3 quickly dissolves, it is complete within the most short time
Into defrosting work, and normal heating mode is switched back into rapidly, reduce the loss of heat and efficiency, and connect in throttle mechanism in parallel
Check valve 10 is connected to, in system normal heating process, the flow direction of refrigerant is in opposite direction with check valve 10, so refrigerant
Will not be by this set mechanism, and normal heating circulation can be only carried out by main capillary 11, the ability efficiency of unit all without
There is any influence because of the increase of mechanism.
Described above is only preferred embodiment of the present utility model, and the scope of protection of the utility model is not limited merely to
Above-described embodiment, all technical schemes belonged under the utility model thinking belong to the scope of protection of the utility model.It should refer to
Go out, for those skilled in the art, some improvement under the premise of the utility model principle is not departed from and
Retouching, these improvements and modifications also should be regarded as the scope of protection of the utility model.
Claims (3)
- A kind of 1. air source heat pump quick defrosting apparatus, it is characterised in that：Including compressor, four-way valve, evaporator, expansion valve, Condenser, water circulating pump and throttle mechanism, the first end of the compressor are connected with the first end of four-way valve, and the of four-way valve Two ends are connected with the input of compressor, and the three-terminal link of four-way valve has the output end of compressor, and the 4th end of four-way valve connects Evaporator is connected to, evaporator is connected with the first end of expansion valve by pipeline, and the second end of expansion valve is connected to the of compressor Two ends, water circulating pump is also associated with the second end of compressor, throttle mechanism is parallel with the expansion valve.
- 2. air source heat pump quick defrosting apparatus according to claim 1, it is characterised in that：The throttle mechanism includes three Pass joint A, three-way connection B, check valve and capillary, the first end of the three-way connection A are connected on evaporator, and three connect Head A the second end is connected in the first end of expansion valve, and three-way connection A three-terminal link is single on the input of check valve Capillary is connected with to the output end of valve, capillary is connected on three-way connection B the 3rd end, and three-way connection B the second end connects It is connected on the second end of compressor, three-way connection B three-terminal link is on the second end of expansion valve.
- 3. air source heat pump quick defrosting apparatus according to claim 1, it is characterised in that：The evaporator side is also set There is cooling fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721000064.7U CN207197017U (en) | 2017-08-10 | 2017-08-10 | A kind of air source heat pump quick defrosting apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721000064.7U CN207197017U (en) | 2017-08-10 | 2017-08-10 | A kind of air source heat pump quick defrosting apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207197017U true CN207197017U (en) | 2018-04-06 |
Family
ID=61796764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721000064.7U Active CN207197017U (en) | 2017-08-10 | 2017-08-10 | A kind of air source heat pump quick defrosting apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207197017U (en) |
-
2017
- 2017-08-10 CN CN201721000064.7U patent/CN207197017U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200426 Address after: 528000 floor 1-2 and floor 2, building 8, No. 2, South 1st Road, Guangzhu Road, Nanjiang neighborhood committee, Daliang, Shunde District, Foshan City, Guangdong Province Patentee after: Foshan Suohe Electric Appliance Co., Ltd Address before: 510000 Guangdong city of Guangzhou province Nansha District Zhen Ling village at the No. 3 plant Patentee before: GUANGZHOU REAL POWER TECHNOLOGY Co.,Ltd. |
|
| TR01 | Transfer of patent right |