CN108151352A - Heat pump air conditioning system - Google Patents
Heat pump air conditioning system Download PDFInfo
- Publication number
- CN108151352A CN108151352A CN201810088565.8A CN201810088565A CN108151352A CN 108151352 A CN108151352 A CN 108151352A CN 201810088565 A CN201810088565 A CN 201810088565A CN 108151352 A CN108151352 A CN 108151352A
- Authority
- CN
- China
- Prior art keywords
- conditioning system
- air conditioning
- heat
- indoor unit
- pump air
- 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.)
- Withdrawn
Links
- 238000004378 air conditioning Methods 0.000 title claims abstract description 25
- 238000010438 heat treatment Methods 0.000 claims abstract description 29
- 239000003507 refrigerant Substances 0.000 claims description 27
- 238000009825 accumulation Methods 0.000 claims description 16
- 239000007788 liquid Substances 0.000 claims description 14
- 238000005057 refrigeration Methods 0.000 claims description 9
- 238000007599 discharging Methods 0.000 claims description 5
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 230000001050 lubricating effect Effects 0.000 claims description 3
- 238000010521 absorption reaction Methods 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims 1
- 238000010257 thawing Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 14
- 239000002918 waste heat Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 230000008676 import Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
-
- 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
-
- 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
- F25B41/40—Fluid line 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
- F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
- F25B47/02—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
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
The invention discloses a heat pump air-conditioning system, which comprises an indoor unit and an outdoor unit, wherein an indoor unit heat exchanger (11) of the indoor unit is connected with a heat accumulator (12) in series, a first end of the indoor unit heat exchanger and a second end of the heat accumulator are connected with a second branch (44) in parallel through a pipeline, a first electromagnetic valve (13) and a second electromagnetic valve (14) are connected on the second branch in series, and the first electromagnetic valve and the second electromagnetic valve are communicated with the indoor unit heat exchanger and the heat accumulator through a first branch (37). The invention well solves the problem of large reduction of indoor temperature during defrosting, greatly shortens defrosting operation time, and can achieve the effect of quick heating after defrosting is finished.
Description
Technical field
The present invention relates to air-conditioning technical field more particularly to a kind of heat pump air conditioning systems of recyclable heating waste heat.
Background technology
Existing heat pump system（Freeze, heat it is dual-purpose）When running in a heating mode, when outdoor unit heat exchanger temperature is low
In outdoor environment temperature and during less than zero degree, outdoor unit heat exchanger can frosting, frost layer can block the air duct of air circulation between fin,
Wind effluent amount is caused to reduce, heat exchange property deteriorates, and efficiency reduces.It is run in order to ensure the normal table of air-conditioning system, works as outdoor
After machine heat exchanger frosting to a certain extent, need to carry out defrosting processing.Presently the most widely applied Defrost method is that hot gas removes
Outdoor unit heat exchanger is switched to high-pressure side by frost, the heat generated by compressor work goes defrost.Hot gas defrosting is primarily present
Problems with：
1. because indoor set heat exchanger switches to low-pressure side, to avoid to indoor conveying cold, indoor fan need to be out of service, this
Sample can cause defrost indoor temperature decline therebetween larger；
2. since indoor fan is not run, system can largely return liquid during defrost is run, and outdoor unit vapour liquid separator can have greatly
The refrigerant of amount, when restoring heating operation after defrost, system refrigerant internal circulating load is insufficient, and heating initial performances are poor；
3. since evaporating temperature is very low during defrost, indoor set heat exchanger temperature can decline to a great extent, and restore system after defrost
It when hot, blows a cold wind over to prevent, needing to wait for longer time indoor fan can just resume operation, and the comfort of heating is poor.
Invention content
The purpose of the present invention is be directed to above-mentioned hot gas defrosting there are the defects of, propose it is a kind of it is recyclable heating waste heat heat pump
Air-conditioning system.
The technical solution adopted by the present invention is to design a kind of heat pump air conditioning system, including indoor unit and outdoor unit, wherein,
The indoor set heat exchanger of the indoor unit is connected with a storage heater, the first end of the indoor set heat exchanger and the storage heater
Second end is in parallel with a second branch by pipeline, and the first solenoid valve and second solenoid valve, the first He are in series in the second branch
It is connected between indoor set heat exchanger and storage heater by the first branch between second solenoid valve.
Preferably, the outside of the second end of the indoor set heat exchanger is equipped with an electronic expansion valve of indoor unit.
Preferably, the outside of the second end of the storage heater is equipped with an accumulation of heat electric expansion valve.
Preferably, electric heater is equipped at the indoor set heat exchanger.
The outdoor unit includes compressor, four-way valve, outdoor unit heat exchanger, outdoor unit wind turbine and outdoor unit electronic expansion
Valve, the outdoor unit electric expansion valve are in parallel with a check valve.
Preferably, the indoor set heat exchanger is equipped with inlet/outlet pipe temperature sensor and indoor unit environment temperature sensor, institute
Outdoor unit heat exchanger is stated equipped with inlet/outlet pipe temperature sensor and outdoor unit environment temperature sensor.
Preferably, the compressor air-discharging is connect by an oil eliminator with four-way valve, and the bottom of the oil eliminator leads to
The lubricating system for crossing a pipeline and compressor connects, which is equipped with a filter and an oil return oil return capillary.
Preferably, the air inlet side of the compressor is equipped with gas-liquid separator.
Preferably, the compressor air-discharging side is equipped with exhaust gas temperature sensor, high pressure sensor and high-voltage switch gear, air inlet side
Equipped with low pressure sensor.
The heat pump air conditioning system that the present invention designs includes three kinds of operational modes：Refrigeration mode, heating mode and defrost pattern.
When refrigeration mode is run, refrigerant gets in machine by indoor unit liquid pipe, and accumulation of heat electric expansion valve is closed, and second
Solenoid valve is opened, and the first solenoid valve is closed, and refrigerant gets in machine electric expansion valve by the first branch and throttles, and is changed through indoor unit
Indoor unit is flowed out after hot device heat exchange.
When heating mode is run, refrigerant gets in machine, the first solenoid valve and second solenoid valve by indoor unit tracheae
It closes, electronic expansion valve of indoor unit and accumulation of heat electric expansion valve fully open, and heat exchanger and storage heater change refrigerant indoors
After heat, indoor unit is flowed out through accumulation of heat electric expansion valve.
When defrost pattern is run, refrigerant gets in machine by indoor unit liquid pipe, and the first solenoid valve is opened, the second electromagnetism
Valve is closed, accumulation of heat electric expansion valve normal regulating, and electronic expansion valve of indoor unit is closed, after refrigerant absorbs heat in storage heater, by
The first branch, the first solenoid valve outflow indoor unit.
Compared with prior art, the invention has the advantages that：
1. using the waste heat of storage heater storage heating operation indoor set heat exchanger, heating effect is not interfered with, and transport in defrost
During row, heat that defrost institute calorific requirement major part is stored from storage heater greatly shortens the defrost time, improves the comfortable of user
Degree；
2. defrost is run, refrigerant is without indoor set heat exchanger, indoor set heat exchanger temperature suppression ratio tradition defrosting method
It is much smaller, substantially shorten the stand-by period that heating operation wind turbine starts；
3. defrost is run, using accumulation of heat electric expansion valve regulating system flow, control refrigerant and storage heater as abundant as possible
Heat exchange substantially reduces liquid measure during defrost operation so that quick heating is realized after switching heating operation.
Description of the drawings
Fig. 1 is the systematic schematic diagram of the present invention；
Fig. 2 is schematic diagram of the present system when refrigeration mode is run；
Fig. 3 is schematic diagram of the present system when heating mode is run；
Fig. 4 is schematic diagram of the present system when defrost pattern is run.
Specific embodiment
The present invention will be described in detail with reference to the accompanying drawings and examples.
As shown in Figure 1, heat pump air conditioning system proposed by the present invention includes outdoor unit 100 and indoor unit 200.
It is swollen that outdoor unit 100 includes compressor 1, four-way valve 5, outdoor unit heat exchanger 6, outdoor unit wind turbine 7 and outdoor unit electronics
Swollen valve 8.Outdoor unit expansion valve 8 is in parallel with a check valve 30, and front and rear is respectively equipped with filter 26.Compressor air inlet side is equipped with gas
Liquid/gas separator 3 and low pressure sensor 25, exhaust side are equipped with oil eliminator 4, exhaust gas temperature sensor 22, high pressure sensor 24 and height
Compress switch 23.Compressor air-discharging is connect after oil eliminator 4 with four-way valve 5, and the oil that the bottom of oil eliminator is isolated passes through
The lubricating system of one pipeline and compressor connects, which is equipped with a filter 26 and an oil return capillary 27.Outdoor unit changes
Hot device 6 is equipped with inlet pipe temperature sensor 17, outlet pipe temperature sensor 18 and outdoor unit environment temperature sensor 19.
Indoor unit 200 includes the indoor set heat exchanger 11 of series connection and storage heater 12,31 He of first end of indoor set heat exchanger
The second end 36 of storage heater is in parallel with a second branch 44 by pipeline respectively.13 He of the first solenoid valve is in series in the second branch
Second solenoid valve 14.Connected between indoor set heat exchanger and storage heater by a first branch 37 between first and second solenoid valves
It is logical.Electric heater 15 and indoor fan 16 are equipped at indoor set heat exchanger 11.Indoor set heat exchanger 11 is equipped with inlet pipe temperature sensing
Device 20, outlet pipe temperature sensor 21 and indoor unit environment temperature sensor 28.
Preferably, 32 outside of second end of indoor set heat exchanger is equipped with an electronic expansion valve of indoor unit 9.The second of storage heater
36 outside of end is equipped with a storage heater electric expansion valve 10.
Outdoor unit 100 is connected with indoor unit 200 by shut-off valve 29, and the inside of shut-off valve is equipped with filter 26.
Indoor unit tracheal entrance A is divided into two-way, and the first end 38 with the first solenoid valve 13 is connected all the way, all the way with indoor unit
The first end 31 of heat exchanger is connected.The second end 32 of indoor set heat exchanger is connected with the first end 33 of electronic expansion valve of indoor unit 9.
Electronic expansion valve of indoor unit 9 by the inlet pipe temperature sensor 20 of indoor set heat exchanger and can go out tube temperature when refrigeration mode is run
Spend sensor 21 calculate indoor set heat exchanger the evaporation degree of superheat or by the inlet pipe temperature sensor 20 of indoor set heat exchanger with
The suction superheat or the exhaust calculated by exhaust gas temperature sensor 22 and high pressure sensor 24 that low pressure sensor 25 calculates
Temperature or the delivery temperature measured by exhaust gas temperature sensor 22, the flow of dynamic regulation indoor set heat exchanger（System stream
Amount）.
The second end 34 of electronic expansion valve of indoor unit 9 is divided into two-way, and all the way to the first branch 37, another way is with raiseeing hot device
First end 35 is connected.The first branch 37 is divided into two-way, and the second end 39 with the first solenoid valve 13 is connected all the way, another way and second
The first end 40 of solenoid valve 14 is connected.
Indoor unit liquid pipe import B is divided into two-way, is connected all the way with the second end of second solenoid valve 14 41, another way and accumulation of heat
The first end 42 of electric expansion valve 10 is connected.The second end 43 of accumulation of heat electric expansion valve 10 is connected with the second end 36 of storage heater.
Accumulation of heat electric expansion valve 10 can be passed when defrost pattern is run by the outlet pipe temperature sensor 21 of indoor set heat exchanger with low pressure
The suction superheat or the discharge superheat calculated by exhaust gas temperature sensor 22 and high pressure sensor 24 that sensor 25 calculates,
Or the delivery temperature measured by exhaust gas temperature sensor 22, the flow of dynamic regulation storage heater（Flow system flow）.
Heat pump air conditioning system proposed by the present invention includes three kinds of operational modes：Refrigeration mode, heating mode and defrost pattern.
As shown in Fig. 2, system, when refrigeration mode is run, refrigerant gets in machine, accumulation of heat by indoor unit liquid pipe import B
Electric expansion valve 10 is closed, and second solenoid valve 14 is opened, and the first solenoid valve 13 is closed, 9 normal regulating of electronic expansion valve of indoor unit,
Refrigerant cannot be introduced into storage heater 12, and getting in machine electric expansion valve 9 by the first branch 37 throttles, through indoor set heat exchanger 11
Indoor unit is flowed out after heat exchange.Since refrigerant is not passed through storage heater 12, so storage heater 12 does not absorb cold in cooling condition, no
Influence refrigerating capacity and efficiency.
As shown in figure 3, system is when heating mode is run, refrigerant gets in machine by indoor unit tracheal entrance A, first
Solenoid valve 13 and second solenoid valve 14 are closed, and electronic expansion valve of indoor unit 9 and accumulation of heat electric expansion valve 10 fully open, refrigeration
Agent exchanges heat after fully exchanging heat in machine heat exchanger 11 indoors into storage heater 12, due to the absorption of storage heater 12 is at this time waste heat,
Heating capacity and efficiency are not influenced theoretically, but there are light pressure loss, heat efficiency in when actually refrigerant flows through storage heater
Slightly decline.
As shown in figure 4, system is when defrost pattern is run, refrigerant gets in machine by indoor unit liquid pipe import B, first
Solenoid valve 13 is opened, and second solenoid valve 14 is closed, and 10 normal regulating of accumulation of heat electric expansion valve, electronic expansion valve of indoor unit 9 is closed,
After the heat that refrigerant absorbs heat in storage heater 12 needed for defrost at this time, 13 delivery chamber of the first solenoid valve is passed through by the first branch 37
Interior machine.Refrigerant is completely without indoor set heat exchanger 11 during due to defrost, so indoor unit temperature suppression ratio during defrost
Traditional hot gas defrost is much smaller, and the stand-by period of indoor fan is also shorter after heating starts again.Defrost heat major part comes from
Storage heater, the defrost time is than traditional hot gas defrost much shorter.Since defrost process refrigerant exchanges heat evaporation in storage heater, system
Liquid measure it is few, to restart the time that heating capacity restores completely also fewer than traditional hot gas defrost for heating.
Further, when heating mode is run, the electric heater 15 at indoor set heat exchanger can be according to practical heating effect
Manually or automatically it is turned on and off.
Further, when defrost pattern is run, indoor electric heater 15 is turned on and off that electrical heating power need to be regarded system
Type selecting is related, if type selecting is big, when refrigerant also ensures that leaving air temp is sufficiently high or makes without indoor set heat exchanger 11
Used in inhuman playground, then the temperature in room reduces during can further reducing defrost.It is indoor if electrical heating is opened
Wind turbine 16 is opened, and vice versa.
The state such as following table of each component in three kinds of operational modes：
The connection mode that the present invention is connected using storage heater and indoor set heat exchanger, refrigerant first passes through indoor unit during heating operation
Heat exchanger, using storage heater, what storage heater stored is the waste heat after indoor set heat exchanger and the heat exchange of wind side, to heating capacity
Very small with efficiency influence, indoor temperature declines the problem of larger during having well solved defrost, and substantially shortens defrost
Run time can achieve the effect that quickly to heat after defrost.
Above-described embodiment is merely to illustrate the specific embodiment of the present invention.It should be pointed out that for the general of this field
For logical technical staff, without departing from the inventive concept of the premise, several deformations and variation can also be made, these deformations and
Variation should all belong to the scope of protection of the present invention.
Claims (13)
- A kind of 1. heat pump air conditioning system, including indoor unit and outdoor unit, which is characterized in that the indoor set heat exchanger of the indoor unit （11）With a storage heater（12）Series connection, the second end of the first end of the indoor set heat exchanger and the storage heater by pipeline with One the second branch（44）Parallel connection is in series with the first solenoid valve in the second branch（13）And second solenoid valve（14）, first and second Pass through the first branch between solenoid valve between indoor set heat exchanger and storage heater（37）Connection.
- 2. heat pump air conditioning system as described in claim 1, which is characterized in that the second end of the indoor set heat exchanger（32）'s Outside is equipped with an electronic expansion valve of indoor unit（9）.
- 3. heat pump air conditioning system as claimed in claim 2, which is characterized in that the second end of the storage heater（36）Outside set There is an accumulation of heat electric expansion valve（10）.
- 4. heat pump air conditioning system as described in claim 1, which is characterized in that electric heater is equipped at the indoor set heat exchanger （15）.
- 5. heat pump air conditioning system as described in claim 1, which is characterized in that the outdoor unit includes compressor（1）, four-way valve （5）, outdoor unit heat exchanger（6）, outdoor unit wind turbine（7）With outdoor unit electric expansion valve（8）, the outdoor unit electric expansion valve with One check valve（30）It is in parallel.
- 6. heat pump air conditioning system as described in claim 1, which is characterized in that the indoor set heat exchanger（11）Equipped with inlet/outlet pipe Temperature sensor and indoor unit environment temperature sensor, the outdoor unit heat exchanger（6）Equipped with inlet/outlet pipe temperature sensor and room Outer machine environment temperature sensor.
- 7. heat pump air conditioning system as described in claim 1, which is characterized in that the compressor air-discharging passes through an oil eliminator （4）With four-way valve（5）Connection, the bottom of the oil eliminator are connected by the lubricating system of a pipeline and compressor, the pipeline It is equipped with a filter（26）With an oil return oil return capillary（27）.
- 8. heat pump air conditioning system as described in claim 1, which is characterized in that the air inlet side of the compressor is equipped with gas-liquid separation Device（3）.
- 9. heat pump air conditioning system as described in claim 1, which is characterized in that the compressor air-discharging side is passed equipped with delivery temperature Sensor（22）, high pressure sensor（24）And high-voltage switch gear（23）, air inlet side is equipped with low pressure sensor（25）.
- 10. heat pump air conditioning system as described in any one of claim 1 to 9, which is characterized in that the heat pump air conditioning system includes Three kinds of operational modes：Refrigeration mode, heating mode and defrost pattern.
- 11. heat pump air conditioning system as claimed in claim 10, which is characterized in that when refrigeration mode is run,Refrigerant gets in machine, accumulation of heat electric expansion valve by indoor unit liquid pipe（10）It closes, second solenoid valve（14）It opens, the One solenoid valve（13）It closes, refrigerant is by the first branch（37）Get in machine electric expansion valve（9）Throttling, exchanges heat through indoor unit Device（11）Indoor unit is flowed out after heat exchange.
- 12. heat pump air conditioning system as claimed in claim 10, which is characterized in that when heating mode is run,Refrigerant gets in machine, the first solenoid valve by indoor unit tracheae（13）And second solenoid valve（14）It closes, it is indoor electromechanical Sub- expansion valve（9）With accumulation of heat electric expansion valve（10）It fully opens, refrigerant heat exchanger indoors（11）And storage heater（12） After heat exchange, through accumulation of heat electric expansion valve（10）Flow out indoor unit.
- 13. heat pump air conditioning system as claimed in claim 10, which is characterized in that when defrost pattern is run,Refrigerant gets in machine, the first solenoid valve by indoor unit liquid pipe（13）It opens, second solenoid valve（14）It closes, hot stored electric Sub- expansion valve（10）Normal regulating, electronic expansion valve of indoor unit（9）It closes, refrigerant is in storage heater（12）After middle heat absorption, by One branch（37）, the first solenoid valve（13）Flow out indoor unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810088565.8A CN108151352A (en) | 2018-01-30 | 2018-01-30 | Heat pump air conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810088565.8A CN108151352A (en) | 2018-01-30 | 2018-01-30 | Heat pump air conditioning system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108151352A true CN108151352A (en) | 2018-06-12 |
Family
ID=62459314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810088565.8A Withdrawn CN108151352A (en) | 2018-01-30 | 2018-01-30 | Heat pump air conditioning system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108151352A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109737630A (en) * | 2018-08-28 | 2019-05-10 | 广东志高暖通设备股份有限公司 | Defrost air-conditioning system is not shut down |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04124544A (en) * | 1990-09-14 | 1992-04-24 | Toshiba Corp | Air conditioner |
| CN103807997A (en) * | 2012-11-14 | 2014-05-21 | 珠海格力电器股份有限公司 | Air conditioning system and control method thereof |
| CN104180442A (en) * | 2014-09-11 | 2014-12-03 | 珠海格力电器股份有限公司 | Air conditioning system |
| CN104654666A (en) * | 2013-11-25 | 2015-05-27 | 珠海格力电器股份有限公司 | Outdoor unit module of multi-split system and multi-split system with outdoor unit module |
| CN207936539U (en) * | 2018-01-30 | 2018-10-02 | 珠海格力电器股份有限公司 | Heat pump air conditioning system |
-
2018
- 2018-01-30 CN CN201810088565.8A patent/CN108151352A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04124544A (en) * | 1990-09-14 | 1992-04-24 | Toshiba Corp | Air conditioner |
| CN103807997A (en) * | 2012-11-14 | 2014-05-21 | 珠海格力电器股份有限公司 | Air conditioning system and control method thereof |
| CN104654666A (en) * | 2013-11-25 | 2015-05-27 | 珠海格力电器股份有限公司 | Outdoor unit module of multi-split system and multi-split system with outdoor unit module |
| CN104180442A (en) * | 2014-09-11 | 2014-12-03 | 珠海格力电器股份有限公司 | Air conditioning system |
| CN207936539U (en) * | 2018-01-30 | 2018-10-02 | 珠海格力电器股份有限公司 | Heat pump air conditioning system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109737630A (en) * | 2018-08-28 | 2019-05-10 | 广东志高暖通设备股份有限公司 | Defrost air-conditioning system is not shut down |
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Application publication date: 20180612 |