CN207515277U - Air source heat pump system - Google Patents
Air source heat pump system Download PDFInfo
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- CN207515277U CN207515277U CN201721458120.1U CN201721458120U CN207515277U CN 207515277 U CN207515277 U CN 207515277U CN 201721458120 U CN201721458120 U CN 201721458120U CN 207515277 U CN207515277 U CN 207515277U
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- fluid path
- defrosting
- main fluid
- import
- heat exchanger
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Abstract
The utility model discloses a kind of air source heat pump system, including：Finned coil heat exchanger, the finned coil heat exchanger are internally provided with main fluid path and defrosting road, and one end of finned coil heat exchanger is equipped with main fluid path import and main fluid path exports, and the other end of finned coil heat exchanger is equipped with defrosting road import and defrosting way outlet；Host, the host are communicated in main fluid path import and main fluid path outlet；And defrost heat exchanger, the defrost heat exchanger are communicated in defrosting road import and defrosting way outlet.The air source heat pump system in finned coil heat exchanger by setting special defrosting road, it commutates and defrosts instead of original four-way, noise when avoiding four-way switching and main fluid path operating condition caused by the refrigerant reverse flow of main fluid path is complicated, reliability is low.
Description
Technical field
The utility model is related to a kind of air source heat pump systems.
Background technology
In use for some time, fin surface can frosting for air source heat pump system.If fin surface frosting, will
Increase heat transfer resistance, the heat absorption capacity attenuation of finned heat exchanger, the attenuation of unit heating capacity causes low pressure alarming to stop when serious
Machine.
The Defrost mode of the prior art, the commutation defrosting of generally use four-way, when finned heat exchanger needs defrosting, four-way is cut
It changes, evaporator when finned heat exchanger is from normally heating becomes condenser；Condenser when case tube heat exchanger is by normally heating becomes
For evaporator.Case tube heat exchanger absorbs heat from hot water, for the defrosting of finned heat exchanger.Refrigerant reverse flow, main liquid
Road operating condition is complicated, reliability is low；During defrosting, hot water temperature can reduce.Since four-way switches, spike noise is high, and
It is general to be not easy to realize that substep defrosts.
Utility model content
The technical problems to be solved in the utility model be that prior art Defrost mode is complicated, reliability is low in order to overcome and
The defects of noise is high provides a kind of air source heat pump system of preferred Defrost mode.
The utility model is to solve above-mentioned technical problem by following technical proposals：
A kind of air source heat pump system, including：
Finned coil heat exchanger, the finned coil heat exchanger are internally provided with main fluid path and defrosting road, finned coil heat exchange
One end of device is equipped with main fluid path import and main fluid path exports, and the other end of finned coil heat exchanger is equipped with defrosting road import and defrosting
Way outlet；
Host, the host are communicated in main fluid path import and main fluid path outlet；And
Defrost heat exchanger, the defrost heat exchanger are communicated in defrosting road import and defrosting way outlet.
Preferably, main fluid path import is equipped with main fluid path control valve, and defrosting road import and defrosting way outlet are equipped with defrosting road
Control valve.
Preferably, main fluid path control valve for solenoid valve and/or, defrosting road control valve is electrical ball valve.
Preferably, host includes：Interconnected condenser and compressor.
Preferably, air source heat pump system further includes gas-liquid separator and oil eliminator, and gas-liquid separator is communicated in main liquid
Between way outlet and compressor, oil eliminator is communicated between compressor and condenser.
Preferably, main fluid path channel and defrosting paths, main fluid path channel and defrosting paths are equipped in defrost heat exchanger
Between can occur heat exchange, defrosting road import and defrosting way outlet are communicated in defrosting paths, and main fluid path channel is communicated in master
Between machine and main fluid path import.
Preferably, defrosting road is upwardly extended in the whole length side of the fin of finned coil heat exchanger.
Preferably, main fluid path import is equipped with restriction expansion device.
Preferably, finned coil heat exchanger further includes fin, the first dispenser and the second dispenser, the connection of the first dispenser
Between fin and main fluid path import, for by multiple main fluid path entrances of one end of the working medium guide fin of main fluid path import,
Second dispenser is communicated between fin and defrosting road import, for the other end of the working medium guide fin of the road import that will defrost
Multiple defrosting road entrances.
Preferably, the first dispenser is seedpod of the lotus head-like structure.
The positive effect of the utility model is：The air source heat pump system in finned coil heat exchanger by setting
Special defrosting road is put, commutates and defrosts instead of original four-way, avoids the refrigeration of the noise and main fluid path when four-way switches
Main fluid path operating condition caused by agent reverse flow is complicated, reliability is low.
Description of the drawings
Fig. 1 is the part-structure schematic diagram of the air source heat pump system of the preferred embodiment of the utility model.
Fig. 2 is another part structure diagram of the air source heat pump system of the preferred embodiment of the utility model.
Fig. 3 is the structure diagram of the fin of the preferred embodiment of the utility model.
Reference sign：
Air source heat pump system 10
Finned coil heat exchanger 11
Main fluid path 12
Defrosting road 13
Main fluid path import 14
Main fluid path outlet 15
Defrost road import 16
Defrost way outlet 17
Fin 18
Main fluid path entrance 191
Defrost road entrance 192
First dispenser 20
Second dispenser 21
Heating power expansion valve 22
Main fluid path control valve 23
Defrost road control valve 24
Gas-liquid separator 25
Compressor 26
Oil eliminator 27
Condenser 28
Defrost heat exchanger 29
Wind turbine 30
Specific embodiment
Below in conjunction with the accompanying drawings, the utility model is further illustrated by way of embodiment, but not therefore by this practicality
It is novel to be limited among the embodiment described range.
As shown in Figs. 1-3, air source heat pump system 10 includes：Finned coil heat exchanger 11, host, 29 and of defrost heat exchanger
Wind turbine 30.Arrow in Fig. 1-3 represents the flow direction of the working medium in pipeline.
Wind turbine 30 blows to finned coil heat exchanger 11, for accelerating the heat exchange of finned coil heat exchanger 11 and air.
As shown in Figure 1, one end of finned coil heat exchanger 11 is equipped with main fluid path import 14 and main fluid path outlet 15.Such as Fig. 2
Shown, the other end of finned coil heat exchanger 11 is equipped with defrosting road import 16 and defrosting way outlet 17.Fig. 1 illustrates finned coil
The connection structure of one end of heat exchanger 11, and Fig. 2 illustrates the connection structure of the other end of finned coil heat exchanger 11.Such as Fig. 3
Shown, finned coil heat exchanger 11 is internally provided with main fluid path 12 and defrosting road 13.Host is communicated in main fluid path import 14 and master
Fluid path outlet 15.Defrost heat exchanger 29 is communicated in defrosting road import 16 and defrosting way outlet 17.
Main fluid path import 14 is equipped with main fluid path control valve 23, and defrosting road import 16 and defrosting way outlet 17 are equipped with defrosting road
Control valve 24.In the present embodiment, main fluid path control valve 23 is solenoid valve.Selectively, main fluid path control valve 23 may be
Other kinds of control valve is used to control the opening and closing of main fluid path import 14.Defrosting road control valve 24 is electrical ball valve.It may be selected
Ground, defrosting road control valve 24 or other kinds of control valve are used to control defrosting road import 16 and defrosting way outlet
17 opening and closing.
By setting main fluid path control valve 23 and defrosting road control valve 24, point to finned coil heat exchanger 11 can be realized
Step defrosting.Can by control each finned coil heat exchanger 11 it is corresponding defrosting road control valve 24 opening and closing, select only to more
One or more of a finned coil heat exchanger 11 defrosts, and can also select multiple finned coil heat exchangers 11
The sequencing of defrosting.For example, finned coil heat exchanger 11 preferentially more serious to frosting can be selected to defrost.
Host includes：Interconnected condenser 28 and compressor 26.Condenser 28 and compressor 26 are air source heat pump
The universal architecture of system 10, repeats no more.
Air source heat pump system 10 further includes gas-liquid separator 25 and oil eliminator 27, and gas-liquid separator 25 is communicated in main liquid
Between way outlet 15 and compressor 26, oil eliminator 27 is communicated between compressor 26 and condenser 28.Gas-liquid separator 25 is used
It is detached in by the liquid refrigerant in pipeline and gaseous working medium, so as to which gaseous working medium only is imported compressor 26, and liquid refrigerant is not
It needs into overcompression machine 26.Oil eliminator 27 is used to that the fluid (lubricating oil of compressor 26) in working medium to be separated and be followed again
In ring to compressor 26.Working medium in air source heat pump system 10 can be freon.
Main fluid path channel and defrosting paths, energy between main fluid path channel and defrosting paths are equipped in defrost heat exchanger 29
Heat exchange enough occurs, defrosting road import 16 and defrosting way outlet 17 are communicated in defrosting paths, and main fluid path channel is communicated in host
Between main fluid path import 14.In this way, the heat of the working medium in main fluid path can be utilized to heat up the working medium in defrosting road.
As shown in figure 3, defrosting road is upwardly extended in the whole length side of the fin of finned coil heat exchanger 11, so as to whole
A fin defrosts.
Main fluid path import 14 is equipped with restriction expansion device.Restriction expansion device can be heating power expansion valve 22.
Finned coil heat exchanger 11 further includes fin 18, the first dispenser 20 and the second dispenser 21, the first dispenser 20
It is communicated between fin and main fluid path import 14, for by multiple masters of one end of the working medium guide fin 18 of main fluid path import 14
Fluid path entrance 191, the second dispenser 21 is communicated between fin 18 and defrosting road import 16, for the work for the road import 16 that will defrost
Multiple defrosting roads entrance 192 of the other end of matter guide fin 18.
First dispenser 20 is seedpod of the lotus head-like structure.Second dispenser 21 is platy structure.First dispenser 20 and second
The structure of dispenser 21 is the distribution shape in order to coordinate main fluid path entrance 191 and defrosting road entrance 192 on fin 18.
The working method of air source heat pump system 10 is briefly described below in conjunction with Fig. 1-3.
When air source heat pump system 10 normally heats, all defrosting road control valves 24 are closed, all main fluid path control valves
23 open, and with air heat exchange occurs for the working medium in finned coil heat exchanger 11, absorbs the heat in air, is converted by liquid
For gaseous state, become the gaseous working medium of low-temp low-pressure, then from 15 outflow of main fluid path outlet, by gas-liquid separator 25, low temperature is low
The gaseous working medium of pressure is compressed to the gaseous working medium of high temperature and pressure in compressor 26, and the gaseous working medium of high temperature and pressure passes through oil
The liquid refrigerant of high temperature and pressure is condensed into condenser 28 from device 27, (is not illustrated in figure, in order to anti-by device for drying and filtering
Stagnant ice blocks up), into the main fluid path channel (working medium in heating defrosting paths) of defrost heat exchanger 29, the liquid of the high temperature and pressure
After working medium is too cold due to the working medium generation heat exchange in the paths that defrost with heating, by main fluid path control valve 23, into heat
Power expansion valve 22, throttling expansion enter fin, so as to complete air into the two-phase fluid of low-temp low-pressure by the first dispenser 20
The normal heating cycle of source heat pump system 10.
When air source heat pump system 10 carries out defrosting operation, here for defrosting step by step, i.e., to finned coil
Multiple fins in heat exchanger 11 defrost successively, in the present embodiment, defrost successively from left to right to the fin in figure, by Fig. 2
In the main fluid path control valve 23 of leftmost finned coil heat exchanger 11 close, and open leftmost finned coil in Fig. 3 and change
The defrosting road import 16 of hot device 11 and the defrosting road control valve 24 for the way outlet 17 that defrosts, due to pressure differential, (pressure differential can be by
Air pump is formed), defrost heat exchanger in high-pressure working medium steam (working medium can it is identical with the working medium in main fluid path can not also
It flows into leftmost finned coil heat exchanger 11 together), during defrosting, the gaseous working medium of high temperature and pressure is condensed into liquid, liquid
Body pushes back defrosting heat exchanger by air-flow, and heat flashes to steam again, due to finned coil heat exchanger 11 and the heat exchanger that defrosts
Difference in height (finned coil heat exchanger 11 sets higher than defrosting heat exchanger), can form flow circuits, continue defrosting cycle, when
After reaching defrosting exit criteria, the defrosting road import 16 of leftmost finned coil heat exchanger 11 and the way outlet 17 that defrosts are closed
Defrost road control valve 24, opens the defrosting road of the defrosting road import 16 of next finned coil heat exchanger 11 and the way outlet 17 that defrosts
Control valve 24, and so on, until all finned coil heat exchangers 11 all complete defrosting.
During defrosting, the acting of compressor 26 is unloaded to normal 50%, to ensure flow matches.
The air source heat pump system 10 in finned coil heat exchanger 11 by setting special defrosting road, instead of original
Four-way commutation defrosting, avoid four-way switching when noise and main fluid path refrigerant reverse flow caused by main fluid path run
Operating mode is complicated, reliability is low.And the air source heat pump system 10 can realize that substep defrosts, and can also be tieed up while defrosting
Hold certain heating capacity.
In the description of the present invention, it is to be appreciated that term " on ", " under ", "front", "rear", "left", "right",
The orientation or position relationship of the instructions such as " vertical ", " level ", " top ", " bottom ", " interior ", " outer " be based on orientation shown in the drawings or
Position relationship is for only for ease of description the utility model and simplifies description rather than instruction or imply signified device or member
Part must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that limitation to the utility model.
Although the foregoing describe specific embodiment of the present utility model, it will be appreciated by those of skill in the art that
This is merely illustrative of, and the scope of protection of the utility model is defined by the appended claims.Those skilled in the art
Under the premise of the principle and essence without departing substantially from the utility model, various changes or modifications can be made to these embodiments,
But these change and modification each fall within the scope of protection of the utility model.
Claims (10)
1. a kind of air source heat pump system, which is characterized in that it includes：
Finned coil heat exchanger, the finned coil heat exchanger are internally provided with main fluid path and defrosting road, and the finned coil changes
One end of hot device is equipped with main fluid path import and main fluid path exports, and the other end of the finned coil heat exchanger is equipped with defrosting road import
With defrosting way outlet；
Host, the host are communicated in the main fluid path import and main fluid path outlet；And
Defrost heat exchanger, the defrost heat exchanger are communicated in the defrosting road import and defrosting way outlet.
2. air source heat pump system as described in claim 1, which is characterized in that the main fluid path import is controlled equipped with main fluid path
Valve, the defrosting road import and defrosting way outlet are equipped with defrosting road control valve.
3. air source heat pump system as claimed in claim 2, which is characterized in that the main fluid path control valve for solenoid valve and/
Or, the defrosting road control valve is electrical ball valve.
4. air source heat pump system as described in claim 1, which is characterized in that the host includes：Interconnected condensation
Device and compressor.
5. air source heat pump system as claimed in claim 4, which is characterized in that the air source heat pump system further includes gas-liquid
Separator and oil eliminator, the gas-liquid separator are communicated between the main fluid path outlet and compressor, the oil eliminator
It is communicated between the compressor and the condenser.
6. air source heat pump system as described in claim 1, which is characterized in that lead in the defrost heat exchanger equipped with main fluid path
Road and defrosting paths, can occur heat exchange between the main fluid path channel and defrosting paths, the defrosting road import and
Defrosting way outlet is communicated in the defrosting paths, and the main fluid path channel is communicated between the host and main fluid path import.
7. air source heat pump system as described in claim 1, which is characterized in that the defrosting road exchanges heat in the finned coil
The whole length side of the fin of device upwardly extends.
8. air source heat pump system as described in claim 1, which is characterized in that the main fluid path import is filled equipped with throttling expansion
It puts.
9. air source heat pump system as described in claim 1, which is characterized in that the finned coil heat exchanger further includes wing
Piece, the first dispenser and the second dispenser, first dispenser are communicated between the fin and the main fluid path import, are used
Multiple main fluid path entrances in one end that the working medium of main fluid path import is oriented to the fin, second dispenser are communicated in institute
It states between fin and the defrosting road import, the multiple of the other end for the working medium for the road import that defrosts to be oriented to the fin remove
White road entrance.
10. air source heat pump system as claimed in claim 9, which is characterized in that first dispenser is seedpod of the lotus head knot
Structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721458120.1U CN207515277U (en) | 2017-11-03 | 2017-11-03 | Air source heat pump system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721458120.1U CN207515277U (en) | 2017-11-03 | 2017-11-03 | Air source heat pump system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207515277U true CN207515277U (en) | 2018-06-19 |
Family
ID=62537110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721458120.1U Active CN207515277U (en) | 2017-11-03 | 2017-11-03 | Air source heat pump system |
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| Country | Link |
|---|---|
| CN (1) | CN207515277U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107655237A (en) * | 2017-11-03 | 2018-02-02 | 上海柯茂机械有限公司 | Air source heat pump system |
-
2017
- 2017-11-03 CN CN201721458120.1U patent/CN207515277U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107655237A (en) * | 2017-11-03 | 2018-02-02 | 上海柯茂机械有限公司 | Air source heat pump system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210823 Address after: 314211 building 4, No. 588, Hongqiao North Road, Xindai Town, Pinghu City, Jiaxing City, Zhejiang Province Patentee after: Zhejiang Kemao energy saving and environmental protection engineering equipment Co.,Ltd. Address before: 201501 Shanghai city Jinshan District Fengjing town pavilion Maple Road No. 8289 Patentee before: SHANGHAI COMER MACHINERY Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230915 Address after: No. 108 Jiangong Road, Fengjing Town, Jinshan District, Shanghai, January 2015 Patentee after: SHANGHAI COMER MACHINERY Co.,Ltd. Address before: 314211 building 4, No. 588, Hongqiao North Road, Xindai Town, Pinghu City, Jiaxing City, Zhejiang Province Patentee before: Zhejiang Kemao energy saving and environmental protection engineering equipment Co.,Ltd. |