CN110274412A - It is distributed defrost heat pump system - Google Patents
It is distributed defrost heat pump system Download PDFInfo
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- CN110274412A CN110274412A CN201910587961.XA CN201910587961A CN110274412A CN 110274412 A CN110274412 A CN 110274412A CN 201910587961 A CN201910587961 A CN 201910587961A CN 110274412 A CN110274412 A CN 110274412A
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- Prior art keywords
- heat exchanger
- defrosting
- defrost
- valve
- pump system
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- 238000010257 thawing Methods 0.000 claims abstract description 91
- 238000010438 heat treatment Methods 0.000 claims abstract description 44
- 239000012530 fluid Substances 0.000 claims abstract description 39
- 239000007788 liquid Substances 0.000 claims description 33
- 238000011084 recovery Methods 0.000 claims description 9
- 230000008676 import Effects 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 16
- 239000004744 fabric Substances 0.000 abstract description 3
- 241001061137 Caulophrynidae Species 0.000 description 19
- 239000003507 refrigerant Substances 0.000 description 11
- 239000003921 oil Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 239000007789 gas Substances 0.000 description 4
- 239000010687 lubricating oil Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000126 substance Substances 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
- F25B30/02—Heat pumps of the compression type
-
- 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
-
- 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
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by 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
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Power Engineering (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
- Air Conditioning Control Device (AREA)
Abstract
It include at least two heat exchange groups the invention discloses a kind of distribution defrost heat pump system, each heat exchange component does not include an at least finned heat exchanger；One heating pipeline, heating pipeline are connected to each finned heat exchanger circulation；One defroster duct, defroster duct are connected to each finned heat exchanger circulation；At least two defrosting valves, defrosting air pipe access each finned heat exchanger of corresponding heat exchange group by each defrosting valve respectively；At least two main fluid path valves, heating pressure duct access each finned heat exchanger of corresponding heat exchange group by each main fluid path valve respectively.The present invention is defrosted using heat exchange component cloth, and one group of finned heat exchanger for first meeting defrosting condition can first defrost, and the normal hot water preparing operation of unit during defrosting, guarantees that obviously fluctuating does not occur in unit leaving water temperature；Compressor Suck and exhaust pressure guarantees compressor oil-supplying and reliability service without obvious fluctuation during defrosting；Heating pipeline is simply not necessarily to check valve, and system is reliable for operation.
Description
Technical field
The present invention relates to a kind of distribution defrost heat pump systems.
Background technique
It is grown using air, idle air or other gases for containing moisture as the heat pump system heating mode (hot water preparing) of heat source
When time runs, the fin surface frosting of finned heat exchanger.Existing Defrost mode is mostly to absorb heat to defrost from water side after four-way commutates,
There are operating condition variations acutely, and higher to components (four-way valve, compressor) reliability requirement, unit global reliability is not high.
The Defrost mode major defect of four-way commutation:
1, when compressor air suction temperature lower (- 20 DEG C or less), there are switching time it is long even can not switching problem, cause
Unit is unable to operate normally；
2, after four-way switching, Compressor Discharge Pressure is reduced rapidly, and influences compressor oil-supplying；
Summary of the invention
The technical problem to be solved by the present invention is to final rinsing times are more, rinsing time is long in order to overcome in the prior art,
And cleaning efficiency is low, the big defect of injection water provides a kind of cleaning machine rinsing times automatic regulating system.
The present invention is to solve above-mentioned technical problem by following technical proposals:
A kind of distribution defrost heat pump system, including finned heat exchanger, it is characterized in that, the distribution defrost heat pump system packet
It includes:
At least two heat exchange groups, each heat exchange component do not include an at least finned heat exchanger；
One heating pipeline, including heating low pressure air suction pipeline and heating pressure duct, the heating pipeline with it is each described
Finned heat exchanger circulation connection；
One defroster duct, including defrosting liquid pipeline and defrosting air pipe, the defroster duct and each fin exchange heat
Device circulation connection；
At least two defrosting valves, the defrosting valve and the heat exchange group correspond, and the defrosting air pipe passes through respectively
Each defrosting valve accesses each finned heat exchanger of the corresponding heat exchange group；
At least two main fluid path valves, the main fluid path valve and the heat exchange group correspond, the heating pressure duct point
Each finned heat exchanger of the corresponding heat exchange group is not accessed by each main fluid path valve.
Under normal heating mode, each main fluid path valve is opened, and each valve that defrosts is closed.At this point, each fin of each heat exchange group exchanges heat
Device is worked by heating the circular flow of pipeline.
When being grouped defrost, the corresponding main fluid path valve of the heat exchange group for needing to carry out defrost is closed, while to need
Defrosting valve corresponding to the heat exchange group of defrost is carried out to be opened.At this point, not needing each fin heat exchange of the heat exchange group of defrost
Device continues to run, and the heat exchange group for needing to carry out defrost then stops heating and carries out defrost.
It is thus achieved that the defrost of distributed finned heat exchanger, reservation part fin still is able to when carrying out defrost and is changed
Hot device continues to heat, and ensure that normal hot water preparing operation.Also guarantee that obviously fluctuating does not occur in unit leaving water temperature.During defrosting
Compressor Suck and exhaust pressure guarantees compressor oil-supplying and reliability service without obvious fluctuation.And entirely it is distributed defrost heat pump system
Heat pipeline setting simply, without installing check valve, system is reliable for operation.
Preferably, the distribution defrost heat pump system further includes expansion valve, gas-liquid separator, compressor and package heat exchange
Device, wherein
The heating low pressure air suction pipeline is sequentially ingressed into the finned heat exchanger, the gas-liquid separator and the compression
The import of machine；
The heating pressure duct is sequentially ingressed into the outlet of compressor, the shell side of the case tube heat exchanger, the main fluid path
Valve, the expansion valve and the finned heat exchanger.
Preferably, the distribution defrost heat pump system further includes oil eliminator, the oil eliminator access is in the compression
Between the shell side of the outlet of machine and the case tube heat exchanger.
Preferably, the distribution defrost heat pump system further includes filter, the filter access exchanges heat in the package
Between the shell side of device and the main fluid path valve.
Preferably, the distribution defrost heat pump system further includes defrosting heat exchanger and defrosting liquid feed valve, wherein
The shell side of the defrosting heat exchanger is connect with the tube side of the case tube heat exchanger, and the shell side of the case tube heat exchanger is logical
The defrosting liquid feed valve is crossed to connect with the tube side of the defrosting heat exchanger；
The defrosting liquid pipeline is sequentially ingressed into the tube side of the finned heat exchanger and the defrosting heat exchanger；
The defrosting air pipe is sequentially ingressed into the tube side, the defrosting valve and fin heat exchange of the defrosting heat exchanger
Device.
Preferably, the distribution defrost heat pump system further includes heat-pipe working medium recovery valve, the heat-pipe working medium recovery valve point
The defrosting liquid pipeline and the heating low pressure air suction pipeline are not connected.
Preferably, the distribution defrost heat pump system further includes blower, the blower and the finned heat exchanger one are a pair of
It answers.
Preferably, the quantity of the heat exchange group is two, each heat exchange component does not include an at least finned heat exchanger.
Preferably, each heat exchange component does not include two finned heat exchangers.
Preferably, the defrosting valve is motor-driven valve, the main fluid path valve is solenoid valve.
The positive effect of the present invention is that: the present invention is defrosted using heat exchange component cloth, first meets the one of defrosting condition
Group finned heat exchanger can first defrost, and the normal hot water preparing operation of unit during defrosting, guarantee that unit leaving water temperature does not go out
Now obvious fluctuation；Compressor Suck and exhaust pressure guarantees compressor oil-supplying and reliability service without obvious fluctuation during defrosting；Heating pipe
Road is simply not necessarily to check valve, and system is reliable for operation.
Detailed description of the invention
Fig. 1 is the piping connection schematic diagram of the distribution defrost heat pump system of present pre-ferred embodiments.
Fig. 2 is the heating pressure duct connection schematic diagram of present pre-ferred embodiments.
Fig. 3 is the heating low pressure air suction piping connection schematic diagram of present pre-ferred embodiments.
Fig. 4 is the defrosting air pipe connection schematic diagram of present pre-ferred embodiments.
Fig. 5 is the defrosting liquid pipeline connection schematic diagram of present pre-ferred embodiments.
Specific embodiment
The present invention is further illustrated below by the mode of embodiment, but does not therefore limit the present invention to the reality
It applies among a range.
As Figure 1-Figure 5, present embodiment discloses a kind of distribution defrost heat pump systems, including finned heat exchanger 11, wing
Piece heat exchanger 12, finned heat exchanger 13 and finned heat exchanger 14.Wherein, the distribution defrost heat pump system of the present embodiment is divided into two
Heat exchange group, each heat exchange component do not include two finned heat exchangers.Wherein the heat exchange group in left side includes finned heat exchanger 11 and wing
Piece heat exchanger 12；The heat exchange group on right side includes finned heat exchanger 13 and finned heat exchanger 14.
As shown in Figures 2 and 3, the distribution defrost heat pump system of the present embodiment includes a heating pipeline, and heating pipeline includes
Heat low pressure air suction pipeline 22 and heating pressure duct 21, heating pipeline and finned heat exchanger 11, finned heat exchanger 12, fin
Heat exchanger 13 is connected to the circulation of finned heat exchanger 14.
As shown in Figure 4 and Figure 5, the distribution defrost heat pump system of the present embodiment includes a defroster duct, and defroster duct includes
Defrost liquid pipeline 32 and defrosting air pipe 31, defroster duct and finned heat exchanger 11, finned heat exchanger 12, finned heat exchanger 13
It is connected to the circulation of finned heat exchanger 14；
As shown in Figure 1 and Figure 4, the distribution defrost heat pump system of the present embodiment includes defrosting valve 531 and defrosting valve 532, is removed
White valve 531 is corresponding with the heat exchange group in left side, and defrosting valve 532 is corresponding with the heat exchange group on right side.Wherein, defrosting air pipe 31 is by removing
The finned heat exchanger 11 and finned heat exchanger 12 of the heat exchange group in the white access of valve 531 left side.The air pipe 31 that defrosts passes through defrosting valve 532
Access the finned heat exchanger 13 and finned heat exchanger 14 of the heat exchange group on right side.
As depicted in figs. 1 and 2, the distribution defrost heat pump system of the present embodiment includes main fluid path valve 461 and main fluid path valve
462.Main fluid path valve 461 is corresponding with the heat exchange group in left side, and main fluid path valve 462 is corresponding with the heat exchange group on right side.Wherein, high pressure is heated
The finned heat exchanger 11 and finned heat exchanger 12 that pipeline 21 passes through the heat exchange group in the access of main fluid path valve 461 left side.Heat high-voltage tube
Road 21 accesses the finned heat exchanger 13 and finned heat exchanger 14 of the heat exchange group of left and right sides by main fluid path valve 462.
Under normal heating mode, each main fluid path valve is opened, and each valve that defrosts is closed.At this point, each fin of each heat exchange group exchanges heat
Device is worked by heating the circular flow of pipeline.
When being grouped defrost, the corresponding main fluid path valve of the heat exchange group for needing to carry out defrost is closed, while to need
Defrosting valve corresponding to the heat exchange group of defrost is carried out to be opened.At this point, not needing each fin heat exchange of the heat exchange group of defrost
Device continues to run, and the heat exchange group for needing to carry out defrost then stops heating and carries out defrost.
It is thus achieved that the defrost of distributed finned heat exchanger, reservation part fin still is able to when carrying out defrost and is changed
Hot device continues to heat, and ensure that normal hot water preparing operation.Also guarantee that obviously fluctuating does not occur in unit leaving water temperature.During defrosting
42 Suck and exhaust pressure of compressor guarantees 42 fuel feeding of compressor and reliability service without obvious fluctuation.And entirely it is distributed defrost heat pump
System heats pipeline setting simply, and without installing check valve, system is reliable for operation.
As shown in Figure 1, Figure 2 and Figure 3, the distribution defrost heat pump system of the present embodiment still further comprises expansion valve 47, gas
Liquid/gas separator 41, compressor 42 and case tube heat exchanger 44.
Wherein, as shown in figures 1 and 3, heating low pressure air suction pipeline 22 is sequentially ingressed into each finned heat exchanger (finned heat exchanger
11, finned heat exchanger 12, finned heat exchanger 13 and finned heat exchanger 14), the import of gas-liquid separator 41 and compressor 42.Such as
Shown in Fig. 1 and Fig. 2, heating pressure duct 21 is sequentially ingressed into the outlet of compressor 42, the shell side of case tube heat exchanger 44, main fluid path valve
(main fluid path valve 461 or main fluid path valve 462), expansion valve 47 and each finned heat exchanger (finned heat exchanger 11, finned heat exchanger
12, finned heat exchanger 13 and finned heat exchanger 14).
As depicted in figs. 1 and 2, distribution defrost heat pump system can also include oil eliminator 43, oil eliminator 43 access in
Between the outlet of compressor 42 and the shell side of case tube heat exchanger 44.Wherein, isolated lubricating oil is returned pressure by oil eliminator 43
Contracting machine 42.
As depicted in figs. 1 and 2, the distribution defrost heat pump system of the present embodiment can also include filter 45, filter 45
It accesses between the shell side and main fluid path valve (main fluid path valve 461 or main fluid path valve 462) of case tube heat exchanger 44.
As shown in Figures 2 and 3, when heating, heating circulation the following steps are included:
1, the exhaust of compressor 42 by oil eliminator 43 (separation compressor 42 exhaust in lubricating oil, lubricating oil deposit to
42 fuel feeding of compressor, refrigerant gas enter case tube heat exchanger 44), subsequently into the shell side of case tube heat exchanger 44, with user's heat
After water heat exchange, become high pressure liquid refrigerant.
2, after high-pressure refrigerant passes through filter 45, after passing through main fluid path valve 461 and main fluid path valve 462 respectively, expansion valve
47, by controlling opening of valve, become gas-liquid two-phase cold-producing medium after throttling.
Gas-liquid two-phase cold-producing medium is in finned heat exchanger ((finned heat exchanger 11, finned heat exchanger 12,13 and of finned heat exchanger
Finned heat exchanger 14)) pipe in from environment heat absorption become gaseous refrigerant, after converging enter gas-liquid separator 41, it is most laggard
Enter 42 air-breathing of compressor, completes a circulation of heating mode.
As shown in Figure 1, Figure 4 and Figure 5, distribution defrost heat pump system further includes defrosting heat exchanger 52 and defrosting liquid feed valve
51.Wherein, the shell side of defrosting heat exchanger 52 is connect with the tube side of case tube heat exchanger 44, and the shell side of case tube heat exchanger 44 passes through defrosting
Liquid feed valve 51 is connect with the tube side of defrosting heat exchanger 52.
As shown in Figure 1 and Figure 5, the defrosting liquid pipeline 32 of the present embodiment be sequentially ingressed into finned heat exchanger (finned heat exchanger 11,
Finned heat exchanger 12, finned heat exchanger 13 and finned heat exchanger 14) and defrosting heat exchanger 52 tube side.
As shown in Figure 1 and Figure 4, defrosting air pipe 31 is sequentially ingressed into the tube side of defrosting heat exchanger 52, defrosting valve (defrosting valve
531 and defrosting valve 532) and finned heat exchanger (finned heat exchanger 11, finned heat exchanger 12, finned heat exchanger 13 and fin change
Hot device 14).
As shown in Figure 1, the distribution defrost heat pump system of the present embodiment further includes heat-pipe working medium recovery valve 6, heat-pipe working medium is returned
It receives valve 6 and is separately connected defrosting liquid pipeline 32 and heating low pressure air suction pipeline 22, for withdrawing working medium.
As shown in Figure 1, Figure 4 and Figure 5, in normal condition and into when distribution defrosting, the flow direction and valve of defroster duct are opened
Steps are as follows for pass:
1, unit guarantees that defrosting liquid feed valve 51 and heat-pipe working medium recovery valve 6 are in closed state when not defrosting.
2, judge that heat pump system meets and enter defrosting condition, compressor 42 is offloaded to 50%, and defrosting liquid feed valve 51 is opened, shell
The liquid refrigerant flow direction defrosting heat exchanger 52 that heat exchange of heat pipe 44 stores.
3, by defrosting heat exchanger 52, the heat absorption from heat pump system water outlet is accordingly changed into gaseous refrigerant to liquid refrigerant.
4, defrosting valve 531 and main fluid path valve 461 are opened at this time, and defrosting valve 532 and main fluid path valve 462 are closed.First to blower
Finned heat exchanger 11 and fan fins heat exchanger 12 defrost, at this time fan fins heat exchanger 11 and fan fins heat exchanger 12 be except
White state, blower 7 are in off state；Fan fins heat exchanger 3 and fan fins heat exchanger 4 are that heating uses, and blower is to open
State.
5, gaseous refrigerant condenses in fan fins heat exchanger 11 and fan fins heat exchanger 12 becomes liquid refrigerant,
And external heat release, the frost condensed on fan fins heat exchanger 11 and fan fins heat exchanger 12 is heated to become water, drips from fin
It falls.
6, liquid refrigerant flows back into fan fins heat exchanger 11 and fan fins heat exchanger 12 by gravity, continues
It absorbs heat from defrosting heat exchanger 52, until fan fins heat exchanger 11 and the defrosting of fan fins heat exchanger 12 are completed.
7, after the completion of fan fins heat exchanger 11 and fan fins heat exchanger 12 defrost, defrosting valve 531 and main fluid path valve 462
It closes, defrosting valve 532 and main fluid path valve 461 are opened, then are defrosted to fan fins heat exchanger 13 and fan fins heat exchanger 14, this
When fan fins heat exchanger 11 and fan fins heat exchanger 12 be that heating uses.
8, when all defrosting finishes for finned heat exchanger 11, finned heat exchanger 12, finned heat exchanger 13 and finned heat exchanger 14
Afterwards, blower 7 is fully open.
9, defrosting liquid feed valve 51 is closed, heat-pipe working medium recovery valve 6 is opened, in the defrost pipeline for recycling heat pipe effect
Refrigerant.
10, after refrigerant-recovery, heat-pipe working medium recovery valve 6 is closed, defrosting finishes, and continues heating operation.
As shown in Figure 1, the distribution defrost heat pump system of the present embodiment further includes 4 Fans 7, blower 7 and finned heat exchanger
11, finned heat exchanger 12, finned heat exchanger 13 and finned heat exchanger 14 are arranged in a one-to-one correspondence.
In the present embodiment, the quantity of heat exchange group is two, and each heat exchange component does not include two finned heat exchangers.But at it
In his optional embodiment, the quantity of heat exchange group can be more groups, and finned heat exchanger may be other quantity.It only needs to set
Set the defrosting valve and main fluid path valve of corresponding number.
In the present embodiment, defrosting valve 531 and defrosting valve 532 are further arranged to motor-driven valve, main fluid path valve 461 and main fluid path
Valve 462 can then be further arranged to solenoid valve.In optional other embodiments, also it can according to need using different type
Valve.
In conclusion the present embodiment is defrosted using heat exchange component cloth, one group of finned heat exchanger for first meeting defrosting condition can
It first defrosts, and the normal hot water preparing operation of unit during defrosting, guarantees that obviously fluctuating does not occur in unit leaving water temperature；Defrosting
Period compressor Suck and exhaust pressure guarantees compressor oil-supplying and reliability service without obvious fluctuation；Heating pipeline is simply not necessarily to unidirectionally
Valve, system are reliable for operation.
Although specific embodiments of the present invention have been described above, it will be appreciated by those of skill in the art that this is only
For example, protection scope of the present invention is to be defined by the appended claims.Those skilled in the art without departing substantially from
Under the premise of the principle and substance of the present invention, many changes and modifications may be made, but these change and
Modification each falls within protection scope of the present invention.
Claims (10)
1. a kind of distribution defrost heat pump system, including finned heat exchanger, which is characterized in that the distribution defrost heat pump system packet
It includes:
At least two heat exchange groups, each heat exchange component do not include an at least finned heat exchanger；
One heating pipeline, including heating low pressure air suction pipeline and heating pressure duct, the heating pipeline and each fin
Heat exchanger circulation connection；
One defroster duct, including defrosting liquid pipeline and defrosting air pipe, the defroster duct are followed with each finned heat exchanger
Ring connection；
At least two defrosting valves, the defrosting valve and the heat exchange group correspond, and the defrosting air pipe passes through each institute respectively
State each finned heat exchanger that defrosting valve accesses the corresponding heat exchange group；
At least two main fluid path valves, the main fluid path valve and the heat exchange group correspond, and the heating pressure duct leads to respectively
Cross each finned heat exchanger that each main fluid path valve accesses the corresponding heat exchange group.
2. distribution defrost heat pump system as described in claim 1, which is characterized in that the distribution defrost heat pump system further includes
Expansion valve, gas-liquid separator, compressor and case tube heat exchanger, wherein
The heating low pressure air suction pipeline is sequentially ingressed into the finned heat exchanger, the gas-liquid separator and the compressor
Import；
The heating pressure duct is sequentially ingressed into the outlet of compressor, the shell side of the case tube heat exchanger, the main fluid path valve, institute
State expansion valve and the finned heat exchanger.
3. distribution defrost heat pump system as claimed in claim 2, which is characterized in that the distribution defrost heat pump system further includes
Oil eliminator, the oil eliminator access is between the outlet of the compressor and the shell side of the case tube heat exchanger.
4. distribution defrost heat pump system as claimed in claim 2, which is characterized in that the distribution defrost heat pump system further includes
Filter, the filter access is between the shell side and the main fluid path valve of the case tube heat exchanger.
5. distribution defrost heat pump system as claimed in claim 2, which is characterized in that the distribution defrost heat pump system further includes
Defrost heat exchanger and defrosting liquid feed valve, wherein
The shell side of the defrosting heat exchanger is connect with the tube side of the case tube heat exchanger, and the shell side of the case tube heat exchanger passes through institute
Defrosting liquid feed valve is stated to connect with the tube side of the defrosting heat exchanger；
The defrosting liquid pipeline is sequentially ingressed into the tube side of the finned heat exchanger and the defrosting heat exchanger；
The defrosting air pipe is sequentially ingressed into tube side, the defrosting valve and the finned heat exchanger of the defrosting heat exchanger.
6. distribution defrost heat pump system as claimed in claim 5, which is characterized in that the distribution defrost heat pump system further includes
Heat-pipe working medium recovery valve, the heat-pipe working medium recovery valve are separately connected the defrosting liquid pipeline and the heating low pressure air suction pipe
Road.
7. distribution defrost heat pump system as described in claim 1, which is characterized in that the distribution defrost heat pump system further includes
Blower, the blower and the finned heat exchanger correspond.
8. distribution defrost heat pump system as described in claim 1, which is characterized in that the quantity of the heat exchange group is two, respectively
The heat exchange component does not include an at least finned heat exchanger.
9. distribution defrost heat pump system as claimed in claim 8, which is characterized in that each heat exchange component does not include two institutes
State finned heat exchanger.
10. distribution defrost heat pump system as described in any one of claims 1-9, which is characterized in that the defrosting valve is electricity
Dynamic valve, the main fluid path valve are solenoid valve.
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| CN201910587961.XA CN110274412A (en) | 2019-07-02 | 2019-07-02 | It is distributed defrost heat pump system |
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| CN201910587961.XA CN110274412A (en) | 2019-07-02 | 2019-07-02 | It is distributed defrost heat pump system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113776221A (en) * | 2021-09-27 | 2021-12-10 | 陕西凯尔利尼冷冻空调有限公司 | Method for realizing heat supply of screw machine heat pump cooling and heating unit |
| CN117073261A (en) * | 2023-08-25 | 2023-11-17 | 中国建筑西南设计研究院有限公司 | Construction method of crossed uninterrupted defrosting air source heat pump unit |
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| CN103134235A (en) * | 2011-12-05 | 2013-06-05 | 约克广州空调冷冻设备有限公司 | Coil pipe step-by-step defrosting hot pump system |
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| CN113776221A (en) * | 2021-09-27 | 2021-12-10 | 陕西凯尔利尼冷冻空调有限公司 | Method for realizing heat supply of screw machine heat pump cooling and heating unit |
| CN117073261A (en) * | 2023-08-25 | 2023-11-17 | 中国建筑西南设计研究院有限公司 | Construction method of crossed uninterrupted defrosting air source heat pump unit |
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