CN106225294A - A kind of low-temperature air-cooling heat pump system - Google Patents
A kind of low-temperature air-cooling heat pump system Download PDFInfo
- Publication number
- CN106225294A CN106225294A CN201610752139.0A CN201610752139A CN106225294A CN 106225294 A CN106225294 A CN 106225294A CN 201610752139 A CN201610752139 A CN 201610752139A CN 106225294 A CN106225294 A CN 106225294A
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- CN
- China
- Prior art keywords
- economizer
- outlet
- shell
- compressor
- gas
- 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.)
- Pending
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Classifications
-
- 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
- F25B13/00—Compression machines, plants or systems, with reversible cycle
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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
- F25B41/00—Fluid-circulation arrangements
-
- 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
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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
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
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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
- 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
-
- 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
- F25B2500/00—Problems to be solved
- F25B2500/31—Low ambient temperatures
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Other Air-Conditioning Systems (AREA)
Abstract
The present invention relates to a kind of low-temperature air-cooling heat pump system, including compressor, shell and tube exchanger, reservoir, economizer, oil cooler, gas-liquid separator and some groups of finned heat exchangers, the invention has the beneficial effects as follows: unit can normal boot-strap, Effec-tive Function at a temperature of the ultralow environment of subzero 30 degree, during defrosting, unit can persistently heat, unit leaving water temperature is fluctuated within the scope of less temperature, thus the temperature stabilization in ensureing room.
Description
Technical field
The present invention relates to a kind of heat pump, particularly relate to a kind of low-temperature air-cooling heat pump system, belong to technical field of heat pumps.
Background technology
Current existing Air-Cooled Heat Pump Unit, is only suitable for running at higher ambient temperatures winter, when in relatively low environment temperature
When running under degree, inefficiency, it is impossible to normal boot-strap.When in unit operation, finned heat exchanger occurs that frosting is thicker and needs defrost
Shi Caiyong four-way change-over valve counteragent, carries out refrigerating operaton and defrosts, and at this moment water outlet or the leaving air temp of unit fluctuates relatively
Greatly, in causing room, temperature fluctuation is relatively big, and more even unit occurs not heating phenomenon.
Summary of the invention
The present invention is directed to the deficiency that existing Air-Cooled Heat Pump Unit exists, it is provided that a kind of low-temperature air-cooling heat pump system.
The technical scheme is that
A kind of low-temperature air-cooling heat pump system, including compressor, shell and tube exchanger, reservoir, economizer, oil cooler,
Gas-liquid separator and some groups of finned heat exchangers, it is characterised in that the compressor outlet of described compressor and shell-tube type
The shell and tube exchanger air inlet of heat exchanger is connected, shell and tube exchanger outlet and the reservoir of described shell and tube exchanger
Reservoir import is connected, and the reservoir outlet of described reservoir passes through two branch roads economizer second respectively with economizer and enters
Mouth is connected with oil cooler second import of oil cooler, and the second outlet of described economizer is connected with the import of compressor
Connecing, the first outlet of described oil cooler is all connected with the compressor inlet of compressor with the second outlet, described compressor
Compressor outlet is connected with the gas-liquid separator import of gas-liquid separator, and the gas-liquid separator outlet of described gas-liquid separator is logical
Crossing branch road to be connected with some groups of finned heat exchangers respectively, the outlet of each finned heat exchanger is all sequentially connected with by pipeline
Have liquid supply electromagnetic valve and feed flow expansion valve, the export pipeline of all of finned heat exchanger merge after with the first import of economizer
Being connected, the economizer of described economizer first is exported and is connected with the first import of oil cooler by pipeline, each fin
The outside of formula heat exchanger is all connected by pipeline has defrost electromagnetic valve, after the other end of described defrost electromagnetic valve is merged by pipeline
It is connected at the shell and tube exchanger air inlet of shell and tube exchanger.
The invention has the beneficial effects as follows: unit at a temperature of the ultralow environment of subzero 30 degree can normal boot-strap, efficiently transport
OK, during defrosting, unit can persistently heat so that unit leaving water temperature fluctuates within the scope of less temperature, thus
Ensure the temperature stabilization in room.
On the basis of technique scheme, the present invention can also do following improvement.
Further, it is additionally provided with oil eliminator between described compressor and shell and tube exchanger.
The beneficial effect using above-mentioned further scheme it is possible to preferably accomplish Oil-gas Separation, protect compressor and
Heat exchanger.
Further, return-air electromagnetic valve it is additionally provided with between described gas-liquid separator and finned heat exchanger.
Further, it is additionally provided with economizer electromagnetic valve and economizer expansion in the middle of described reservoir and the connecting portion of economizer
Valve.
Further, it is connected also by branch road between described finned heat exchanger and liquid supply electromagnetic valve and has check valve, described list
Liquid supply electromagnetic valve and the feed flow expansion valve middle part of adjacent legs it is connected to the end of valve.
Use above-mentioned further scheme to provide the benefit that, sufficiently utilize condensed fluid and heat, reduce energy consumption, be beneficial to
Environmental protection.
Accompanying drawing explanation
Fig. 1 is the structural representation of heat pump of the present invention；
In Fig. 1,1, compressor；2, oil eliminator；2-1, oil eliminator air inlet；2-2, oil eliminator gas outlet；2-3、
Oil eliminator oil-out；3, shell and tube exchanger；4, reservoir；5, economizer electromagnetic valve；6, economizer expansion valve；7, oil cooling
Device；7-1, oil cooler first exports；7-2, oil cooler the second import；7-3, oil cooler second exports；7-4, oil cooling
Device the first import；8, economizer；8-1, economizer second exports；8-2, economizer first exports；8-3, economizer the second import；
8-4, economizer the first import；9, gas-liquid separator；10, return-air electromagnetic valve；11, liquid supply electromagnetic valve；12, feed flow expansion valve；13、
Finned heat exchanger；14, defrost electromagnetic valve；15, check valve
Detailed description of the invention
Being described principle and the feature of the present invention below in conjunction with example, example is served only for explaining the present invention, and
Non-for limiting the scope of the present invention.
A kind of low-temperature air-cooling heat pump system, including compressor 1, oil eliminator 2, shell and tube exchanger 3, reservoir 4, economy
Device 8, oil cooler 7, gas-liquid separator 9 and 3 groups of finned heat exchangers 13, the compressor outlet of compressor and oil eliminator
Air inlet be connected, the gas outlet of oil eliminator is connected with the shell and tube exchanger air inlet of shell and tube exchanger, oil point
It is connected with the oil-in of compressor from the oil-out of device bottom, the shell and tube exchanger outlet of shell and tube exchanger and reservoir
Reservoir import be connected, the reservoir outlet of reservoir by two branch roads respectively with economizer second import of economizer
8-3 is connected with oil cooler the second import 7-2 of oil cooler, be additionally provided with in the middle of the connecting portion of reservoir and economizer through
Ji device electromagnetic valve 5 and economizer expansion valve 6, the second outlet 8-1 of economizer is connected with the import of compressor, oil cooler
First outlet 7-3 and the second outlet 7-1 is all connected with the compressor inlet of compressor, the compressor liquid outlet of compressor and gas
The import of liquid/gas separator is connected, and the outlet of gas-liquid separator is connected with 3 groups of finned heat exchangers respectively by 3 branch roads,
It is additionally provided with return-air electromagnetic valve 10 between gas-liquid separator and finned heat exchanger, often organizes the outlet of finned heat exchanger all by pipe
Road is connected with liquid supply electromagnetic valve 11 and feed flow expansion valve 12 in turn, also by branch road between finned heat exchanger and liquid supply electromagnetic valve
Connect liquid supply electromagnetic valve and the feed flow expansion valve pars intermedia having check valve 15, the end of described check valve to be connected to adjacent legs
Position, the export pipeline of all of finned heat exchanger is connected with the first import 8-4 of economizer after merging, the economy of economizer
Device first is exported 8-2 and is connected with the first import 7-4 of oil cooler by pipeline, and the outside of each finned heat exchanger is the most logical
Crossing pipeline connection has defrost electromagnetic valve 14, the other end of defrost electromagnetic valve to be connected to shell and tube exchanger after being merged by pipeline
At shell and tube exchanger air inlet.
The work process of low-temperature air-cooling heat pump system of the present invention is as follows:
Unit heating operations, the high temperature and high pressure gas that compressor outlet is discharged discharges into shell-tube type heat exchange through oil eliminator
Device, high temperature and high pressure gas heat extraction in shell and tube exchanger is condensed into the liquid of High Temperature High Pressure, and the liquid of High Temperature High Pressure flows through storage
Liquid device, enters finned changing by the two phase flow that the liquid supply electromagnetic valve on liquid feeding pipeline, heating power expansion valve throttling are low-temp low-pressure
Hot device, the two phase flow gas suppressed for low temperature that absorbs heat in heat exchanger flows through gas-liquid separator and is sucked by compressor, through compressor
The gas being compressed into High Temperature High Pressure is discharged, and this completes heating operations.Defrosting process, when finned heat exchanger needs being detected
During defrost, corresponding return-air electromagnetic valve, liquid supply electromagnetic valve are closed, and a part of compressor high temperature of bypass opened by defrost electromagnetic valve
The aerofluxus of high pressure enters finned heat exchanger defrost, and the refrigerant liquid being simultaneously condensed is entered by check valve, heating power expansion valve
Being absorbed by compressor after entering finned heat exchanger heat absorption, other do not have the finned heat exchanger of defrost to continue as vaporizer simultaneously
Complete heating operation.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all spirit in the present invention and
Within principle, any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.
Claims (5)
1. a low-temperature air-cooling heat pump system, including compressor, shell and tube exchanger, reservoir, economizer, oil cooler, gas
Liquid/gas separator and some groups of finned heat exchangers, it is characterised in that the compressor outlet of described compressor changes with shell-tube type
The shell and tube exchanger air inlet of hot device is connected, the shell and tube exchanger outlet of described shell and tube exchanger and the storage of reservoir
Liquid device import is connected, the reservoir outlet of described reservoir by two branch roads respectively with economizer second import of economizer
Being connected with oil cooler second import of oil cooler, the second outlet of described economizer is connected with the import of compressor,
First outlet of described oil cooler is all connected with the compressor inlet of compressor with the second outlet, the compression of described compressor
Machine outlet is connected with the gas-liquid separator import of gas-liquid separator, and the gas-liquid separator outlet of described gas-liquid separator is by propping up
Road is connected with some groups of finned heat exchangers respectively, and the outlet of each finned heat exchanger is all connected with confession in turn by pipeline
Liquid electromagnetic valve and feed flow expansion valve, the export pipeline of all of finned heat exchanger is connected with the first import of economizer after merging
Connecing, the economizer of described economizer first is exported and is connected with the first import of oil cooler by pipeline, each finned changes
The outside of hot device is connected after all having defrost electromagnetic valve, the other end of described defrost electromagnetic valve to be merged by pipeline by pipeline connection
To the shell and tube exchanger air inlet of shell and tube exchanger.
Low-temperature air-cooling heat pump system the most according to claim 1, it is characterised in that described compressor and shell and tube exchanger
Between be additionally provided with oil eliminator.
Low-temperature air-cooling heat pump system the most according to claim 1 and 2, it is characterised in that described gas-liquid separator and fin
Return-air electromagnetic valve it is additionally provided with between formula heat exchanger.
Low-temperature air-cooling heat pump system the most according to claim 1 and 2, it is characterised in that described reservoir and economizer
Economizer electromagnetic valve and economizer expansion valve it is additionally provided with in the middle of connecting portion.
Low-temperature air-cooling heat pump system the most according to claim 1 and 2, it is characterised in that described finned heat exchanger and confession
Connecting also by branch road between liquid electromagnetic valve and have check valve, the end of described check valve is connected to the liquid supply electromagnetic valve of adjacent legs
With feed flow expansion valve middle part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610752139.0A CN106225294A (en) | 2016-08-29 | 2016-08-29 | A kind of low-temperature air-cooling heat pump system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610752139.0A CN106225294A (en) | 2016-08-29 | 2016-08-29 | A kind of low-temperature air-cooling heat pump system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106225294A true CN106225294A (en) | 2016-12-14 |
Family
ID=57556001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610752139.0A Pending CN106225294A (en) | 2016-08-29 | 2016-08-29 | A kind of low-temperature air-cooling heat pump system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106225294A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1517632A (en) * | 2003-01-13 | 2004-08-04 | Lg������ʽ���� | Duplex air governor with defrost equipment |
| US20060144060A1 (en) * | 2004-12-30 | 2006-07-06 | Birgen Daniel J | Heat exchanger liquid refrigerant defrost system |
| JP2008249236A (en) * | 2007-03-30 | 2008-10-16 | Mitsubishi Electric Corp | Air conditioner |
| US20100170270A1 (en) * | 2009-01-06 | 2010-07-08 | Lg Electronics Inc. | Air conditioner and defrosting operation method of the same |
| KR20140062878A (en) * | 2012-11-15 | 2014-05-26 | 엘지전자 주식회사 | Air conditioner |
| WO2015140951A1 (en) * | 2014-03-19 | 2015-09-24 | 三菱電機株式会社 | Air conditioner |
| EP2930450A1 (en) * | 2012-11-29 | 2015-10-14 | Mitsubishi Electric Corporation | Air conditioning device |
| CN105202829A (en) * | 2015-09-02 | 2015-12-30 | 珠海格力电器股份有限公司 | Condensation liquid storage device and refrigerating unit |
| CN105723168A (en) * | 2013-10-24 | 2016-06-29 | 三菱电机株式会社 | Air conditioner |
-
2016
- 2016-08-29 CN CN201610752139.0A patent/CN106225294A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1517632A (en) * | 2003-01-13 | 2004-08-04 | Lg������ʽ���� | Duplex air governor with defrost equipment |
| US20060144060A1 (en) * | 2004-12-30 | 2006-07-06 | Birgen Daniel J | Heat exchanger liquid refrigerant defrost system |
| JP2008249236A (en) * | 2007-03-30 | 2008-10-16 | Mitsubishi Electric Corp | Air conditioner |
| US20100170270A1 (en) * | 2009-01-06 | 2010-07-08 | Lg Electronics Inc. | Air conditioner and defrosting operation method of the same |
| KR20140062878A (en) * | 2012-11-15 | 2014-05-26 | 엘지전자 주식회사 | Air conditioner |
| EP2930450A1 (en) * | 2012-11-29 | 2015-10-14 | Mitsubishi Electric Corporation | Air conditioning device |
| CN105723168A (en) * | 2013-10-24 | 2016-06-29 | 三菱电机株式会社 | Air conditioner |
| WO2015140951A1 (en) * | 2014-03-19 | 2015-09-24 | 三菱電機株式会社 | Air conditioner |
| CN105202829A (en) * | 2015-09-02 | 2015-12-30 | 珠海格力电器股份有限公司 | Condensation liquid storage device and refrigerating unit |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161214 |
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| RJ01 | Rejection of invention patent application after publication |