CN107525296A - A kind of regenerative type air source heat pump system and its control method - Google Patents
A kind of regenerative type air source heat pump system and its control method Download PDFInfo
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- CN107525296A CN107525296A CN201710694070.5A CN201710694070A CN107525296A CN 107525296 A CN107525296 A CN 107525296A CN 201710694070 A CN201710694070 A CN 201710694070A CN 107525296 A CN107525296 A CN 107525296A
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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
- 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
- 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
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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
-
- 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)
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
A kind of regenerative type air source heat pump system and its control method, system includes compressor, four-way reversing valve, gas-liquid separator, the second electric expansion valve, indoor heat exchanger, outdoor heat exchanger and the valve of correlation and the pipeline of connection, it is characterized in, in addition to storage heater, the first electric expansion valve.When environment temperature is less than switching temperature, control method during heating operation is：When indoor temperature is less than 1 DEG C of setting value, unit starting heat supplying process, the low-temperature heat source of the process storage heater as system, because the pressure in storage heater is intermediate pressure, it may be such that the compression ratio of compressor substantially reduces, stable operation of unit.It can be raised in this process chamber temperature, when indoor temperature is higher than 1 DEG C of setting value, unit starting heat-accumulating process, the high-temperature exhaust air of the process compresses machine is directly used in the accumulation of heat of storage heater.It can decline in this process chamber temperature, when indoor temperature is less than 1 DEG C of setting value, unit switches to heat supplying process again.
Description
Technical field
The present invention relates to heating field, is a kind of regenerative type air source heat pump system and its control method.
Background technology
Air source heat pump is in low temperature environment（As being less than -5 DEG C）Due to the increase of compressor pressure ratios during operation, can cause to arrange
Temperature spends height, and heating effect is deteriorated, and the Energy Efficiency Ratio of unit can substantially reduce, less reliable, and environment temperature is lower, this
One problem is more serious, while is accompanied by the problem of unit frosting defrosts.Traditional air injection enthalpy-increasing and Two-stage Compression technology are to changing
Heating performance under kind Unit Low has certain effect, but when outdoor temperature is very low（As being less than -20 DEG C）, unit still can not
Effectively operation.
Although traditional cascade type heat pump circulating technology can be good at improving runnability of the unit in low temperature, heating
Amount also increases, but the technical scheme system is excessively complicated, and cost is high, and is unable to single-stage operation, when thermic load is smaller
Efficiency is low, can not run refrigeration mode, causes the utilization rate of equipment low, it is difficult to promote the use of a large area.
Traditional reverse cycle defrosting technology four-way reversing valve in defrosting commutates, and system is changed into refrigeration from heating circulation and followed
Ring, not only not heat supply, to be also used to defrost from indoor heat absorption, cause room temperature to decline violent（About decline 5-8 DEG C）, have a strong impact on room
Interior comfortableness, and system operation is unstable, poor reliability, the high-low pressure docking of simultaneity factor（When heat supply switches with defrosting）
Larger mechanical shock can be caused to part so that unit is fragile, and service life reduces；Although the Defrost technology of some improvement
Defrosting time can shorten, but the problem of indoor temperature reduces, high-low pressure docks still be present.Therefore, the frosting of air source heat pump
Defrosting problem is always to restrict a bottleneck of its Effec-tive Function, is not yet well solved.
The content of the invention
The purpose of the present invention is to propose to a kind of regenerative type air source heat pump system, and provide its control method, it is intended to improve
The runnability of unit at low temperature, while also can solve the problem of unit frosting defrosts.
The purpose of the present invention be by following technical scheme come be realize：A kind of regenerative type air source heat pump system, it is described
System includes compressor 1, four-way reversing valve 2, indoor heat exchanger 3, the first electric expansion valve 7, the second electric expansion valve 12, outdoor
Heat exchanger 14 and gas-liquid separator 17, it is characterised in that the system also includes storage heater 8, the first magnetic valve 6, the second electromagnetism
Valve 13, the 3rd magnetic valve 16, the first pipeline 4, the second pipeline 5, the 3rd pipeline 10, the 4th pipeline 11 and the 5th pipeline 15, accumulation of heat
Connect in device 8 containing spiral coil 9 filled with phase change heat storage material, the exhaust outlet of compressor 1 with the first through hole of four-way reversing valve 2
Logical, the second through hole of four-way reversing valve 2 connects with the arrival end of indoor heat exchanger 3, the port of export of indoor heat exchanger 3 while with the
The arrival end of the arrival end of one pipeline 4 and the second pipeline 5 is connected, and the arrival end of the inside spin coil pipe 9 of storage heater 8 is managed with first simultaneously
The port of export of the port of export on road 4 and the second pipeline 5 is connected, and the first electric expansion valve 7 is arranged on the first pipeline 4, the first electromagnetism
Valve 6 is arranged on the second pipeline 5, the port of export of the inside spin coil pipe 9 of storage heater 8 while the arrival end and the 4th with the 3rd pipeline 10
The arrival end connection of pipeline 11, the port of export of the 4th pipeline 11 connect with the arrival end of outdoor heat exchanger 14, the second electronic expansion
Valve 12 is arranged on the 4th pipeline 11, and the port of export of outdoor heat exchanger 14 connects with the arrival end of the 5th pipeline 15, four-way commutation
The third through-hole of valve 2 is connected with the port of export of the 5th pipeline 15 and the port of export of the 3rd pipeline 10 simultaneously, and second solenoid valve 13 is set
Put on the 3rd pipeline 10, the 3rd magnetic valve 16 is arranged on the 5th pipeline 15, fourth hole and the gas-liquid point of four-way reversing valve 3
Arrival end from device 17 connects, and the port of export of gas-liquid separator 17 connects with the air entry of compressor 1.
The phase transition temperature of phase change heat storage material is between 10-25 DEG C in the storage heater 8.
Control method during the system heating operation is：
A. when outside air temperature is higher than switching temperature, switching temperature in value between -7 DEG C ~ -2 DEG C, indoor heat exchanger 3
Blower fan is run well, and the first electric expansion valve 7 and second solenoid valve 13 are closed, and the first magnetic valve 6 and the 3rd magnetic valve 16 are opened,
Second electric expansion valve 12 is operating normally；
B. when outside air temperature is less than the switching temperature, under this precondition, when indoor temperature is less than setting value 1
DEG C when, unit starting heat supplying process, the blower fan of indoor heat exchanger 3 runs well, the first electric expansion valve 6, the 3rd magnetic valve 16
Closed with the second electric expansion valve 12, second solenoid valve 13 is opened, and the first electric expansion valve 7 is operating normally, the process storage heater 8
Heat release, indoor temperature rise, when indoor temperature is higher than 1 DEG C of setting value, unit starting heat-accumulating process, and the wind of indoor heat exchanger 3
Office is closed, and the first electric expansion valve 7 and second solenoid valve 13 are closed, and the first magnetic valve 6 and the 3rd magnetic valve 16 are opened, the second electricity
Sub- expansion valve 12 is operating normally, the accumulation of heat of process storage heater 8, and indoor temperature declines, when indoor temperature is less than 1 DEG C of setting value,
Unit switches to heat supplying process again.
A kind of regenerative type air source heat pump system of the present invention and its having the beneficial effect that for control method：
（1）The system architecture is simple, and its control method is scientific and reasonable, simplicity be applicable, can according to be actually needed carry out single-stage or
Intend the switching of overlapping pattern so that unit can keep the operation of stability and high efficiency, and system within the scope of very wide outdoor temperature
Than superposition type simple system, control ratio superposition type system is more flexible；
（2）The storage heater storage Exotherm Time is short, and required volume is small, and cost is low, and is easy to combine with existing unit, and production adds
Work is convenient；
（3）In defrosting, defrosting speed is fast, and indoor temperature declines less, and comfortableness greatly improves, while unit operation is stable, defrosting
Thoroughly.
Brief description of the drawings
Fig. 1 is a kind of regenerative type air source heat pump system structural representation of the present invention.
Embodiment
Reference picture 1, a kind of regenerative type air source heat pump system of the invention, the system include compressor 1, four-way reversing valve 2,
Indoor heat exchanger 3, the first electric expansion valve 7, the second electric expansion valve 12, outdoor heat exchanger 14 and gas-liquid separator 17, it is special
Sign is, the system also include storage heater 8, the first magnetic valve 6, second solenoid valve 13, the 3rd magnetic valve 16, the first pipeline 4,
Second pipeline 5, the 3rd pipeline 10, the 4th pipeline 11 and the 5th pipeline 15, storage heater 8 is interior to be stored containing spiral coil 9 filled with phase transformation
Hot material, the exhaust outlet of compressor 1 connect with the first through hole of four-way reversing valve 2, the second through hole and the interior of four-way reversing valve 2
The arrival end connection of heat exchanger 3, the port of export of indoor heat exchanger 3 simultaneously with the arrival end of the first pipeline 4 and entering for the second pipeline 5
The connection of mouthful end, the arrival end of the inside spin coil pipe 9 of storage heater 8 simultaneously with the port of export of the first pipeline 4 and the port of export of the second pipeline 5
Connection, the first electric expansion valve 7 are arranged on the first pipeline 4, and the first magnetic valve 6 is arranged on the second pipeline 5, in storage heater 8
The port of export of spiral coil 9 connects with the arrival end of the 3rd pipeline 10 and the arrival end of the 4th pipeline 11 simultaneously, the 4th pipeline 11
The port of export connected with the arrival end of outdoor heat exchanger 14, the second electric expansion valve 12 is arranged on the 4th pipeline 11, and outdoor is changed
The port of export of hot device 14 connects with the arrival end of the 5th pipeline 15, the third through-hole of four-way reversing valve 2 simultaneously with the 5th pipeline 15
The port of export and the 3rd pipeline 10 port of export connection, second solenoid valve 13 is arranged on the 3rd pipeline 10, the 3rd magnetic valve 16
It is arranged on the 5th pipeline 15, the fourth hole of four-way reversing valve 3 connects with the arrival end of gas-liquid separator 17, gas-liquid separator
17 port of export connects with the air entry of compressor 1.The phase transition temperature of phase change heat storage material is at 10-25 DEG C in the storage heater 8
Between.
It is according to control method during a kind of regenerative type air source heat pump system heating operation of Fig. 1 offers：
A. when outside air temperature is higher than switching temperature（Switching temperature value between -7 DEG C ~ -2 DEG C）When, indoor heat exchanger 3
Blower fan is run well, and the first electric expansion valve 7 and second solenoid valve 13 are closed, and the first magnetic valve 6 and the 3rd magnetic valve 16 are opened,
Second electric expansion valve 12 is operating normally, and the flow of refrigerant is as follows：The high-temperature high-pressure gas refrigerant warp come out from compressor 1
Four-way reversing valve 2 enters in indoor heat exchanger 3 and condenses heat release, realizes the heat supply to interior, after through the first magnetic valve 6 enter storage
In hot device 8, phase change heat storage material is transferred heat to by spiral coil 9 and stored, then by the second electric expansion valve 12
Throttling becomes the liquid of low-temp low-pressure, enter absorbed in outdoor heat exchanger 14 outdoor air heat of vaporization become gas after, warp
3rd magnetic valve 16, four-way reversing valve 2, gas-liquid separator 17 return to the air entry of compressor 1；
B. when outside air temperature is less than the switching temperature, under this precondition, when indoor temperature is less than setting value 1
DEG C, i.e., 20 DEG C（If setting value is 21 DEG C）When, unit starting heat supplying process, the blower fan of indoor heat exchanger 3 runs well, the first electricity
Sub- expansion valve 6, the 3rd magnetic valve 16 and the second electric expansion valve 12 are closed, and second solenoid valve 13 is opened, the first electric expansion valve 7
Regular event, the flow of refrigerant are as follows：The high-temperature high-pressure gas refrigerant come out from compressor 1 enters through four-way reversing valve 2
Heat release is condensed in indoor heat exchanger 3, realizes the heat supply to interior, low-temp low-pressure is become by the throttling of the first electric expansion valve 7 afterwards
Liquid enter in storage heater 8, after the heat of vaporization absorbed by spiral coil 9 in phase change heat storage material becomes gas, through the
Two magnetic valves 13, four-way reversing valve 2, gas-liquid separator 17 return to the air entry of compressor 1.The heat release of process storage heater 8, it is indoor
Temperature rises；When indoor temperature is higher than 1 DEG C of setting value, i.e., at 22 DEG C, unit starting heat-accumulating process, the blower fan of indoor heat exchanger 3
Close, the first electric expansion valve 7 and second solenoid valve 13 are closed, and the first magnetic valve 6 and the 3rd magnetic valve 16 are opened, the second electronics
Expansion valve 12 is operating normally, and the flow of refrigerant is as follows：The high-temperature high-pressure gas refrigerant come out from compressor 1 commutates through four-way
Valve 2, indoor heat exchanger 3, the first magnetic valve 6, which is entered in storage heater 8, condenses heat release, and phase is transferred heat to by spiral coil 9
Change heat storage material stores, and is then become the liquid of low-temp low-pressure by the throttling of the second electric expansion valve 12, enters outdoor heat exchange
After the heat of vaporization of absorption outdoor air becomes gas in device 14, through the 3rd magnetic valve 16, four-way reversing valve 2, gas-liquid separator
17 return to the air entry of compressor 1.The accumulation of heat of process storage heater 8, indoor temperature declines, when indoor temperature is less than 1 DEG C of setting value,
At i.e. 20 DEG C, unit switches to heat supplying process again.So far a heat supply and accumulation of heat circulation are completed.
The present invention can meet heating needs when outside air temperature is higher than switching temperature by single-stage operation, now
Storage heater 8 serves as the effect of subcooler, and the unnecessary heating capacity of unit is stored in phase change heat storage material, when outdoor temperature compared with
The low-temperature heat source as unit is discharged when low again, the transfer of energy so can be achieved, system more saves；In outdoor air
When temperature is less than switching temperature：Because the pressure in storage heater 8 is intermediate pressure, so no matter in heat supplying process or accumulation of heat
Journey, the compression ratio of compressor all substantially reduce, so as to ensure that the stable operation of unit at low temperature.Heating capacity has been also simultaneously
Improve.
Compressor 1 in the present invention can also be combined with converter technique, and unit is allowed in heat supply and accumulation of heat work by frequency conversion
High frequency is run under condition, can not only so greatly improve the heating capacity of unit at low temperature, moreover it is possible to shorten thermal storage time, further carry
High indoor comfortableness, improve the Energy Efficiency Ratio of system.
During Defrost operation, the first magnetic valve 6 and the 3rd magnetic valve 16 are opened, second solenoid valve 13, the first electric expansion valve 7
Closed with the blower fan of indoor heat exchanger 3, the second electric expansion valve 12 is operating normally, and the flow of refrigerant is as follows：Go out from compressor 1
The high-temperature high-pressure gas refrigerant come enters in outdoor heat exchanger 14 through four-way reversing valve 2, the 3rd magnetic valve 16 and condenses heat release, puts
The heat gone out is used to defrost, and the liquid for being become low-temp low-pressure by the throttling of the second electric expansion valve 12 afterwards is entered in storage heater 8, is led to
Cross spiral coil 9 absorb phase change heat storage material heat of vaporization become gas after, through the first magnetic valve 6, indoor heat exchanger 3, four
Logical reversal valve 2, gas-liquid separator 17 return to the air entry of compressor 1.
Present invention storage heater 8 in defrosting is used as low level heat energy, and the heat of abundance can be provided for defrosting process, is not only defrosted
Speed is fast, and defrosting is thorough, and system run all right during defrosting, and indoor temperature declines less, and comfortableness greatly improves.
During refrigerating operaton, the 3rd magnetic valve 16 is opened, and the first magnetic valve 6 and second solenoid valve 13 are closed, and the first electronics is swollen
Swollen valve 7 is operating normally, the standard-sized sheet of the second electric expansion valve 12, and the flow of refrigerant is as follows：The HTHP gas come out from compressor 1
Cryogen enters through four-way reversing valve 2, the 3rd magnetic valve 16 and heat release is condensed in outdoor heat exchanger 14, and liberated heat is outdoor
Air is taken away, after through the second electric expansion valve 12, storage heater 8 liquid of low-temp low-pressure is become by the throttling of the first electric expansion valve 7
Body, enter absorbed in indoor heat exchanger 3 room air heat of vaporization become gas after, through four-way reversing valve 2, gas-liquid separator
17 return to the air entry of compressor 1.
The simple system of the present invention, single, plan overlapping switching, the Energy Efficiency Ratio of system can be carried out according to actual condition in heating
Height, but also have refrigerating function concurrently, a tractor serves several purposes, unit utilization rate height.
The preferred embodiment of the present invention is the foregoing is only, is not intended to limit the invention, for this area
For technical staff, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made is any
Modification, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (3)
1. a kind of regenerative type air source heat pump system, the system includes compressor（1）, four-way reversing valve（2）, indoor heat exchanger
（3）, the first electric expansion valve（7）, the second electric expansion valve（12）, outdoor heat exchanger（14）And gas-liquid separator（17）, it is special
Sign is that the system also includes storage heater（8）, the first magnetic valve（6）, second solenoid valve（13）, the 3rd magnetic valve（16）,
One pipeline（4）, the second pipeline（5）, the 3rd pipeline（10）, the 4th pipeline（11）With the 5th pipeline（15）, storage heater（8）Inside contain
Spiral coil（9）Filled with phase change heat storage material, compressor（1）Exhaust outlet and four-way reversing valve（2）First through hole connection, four
Logical reversal valve（2）The second through hole and indoor heat exchanger（3）Arrival end connection, indoor heat exchanger（3）The port of export simultaneously with
First pipeline（4）Arrival end and the second pipeline（5）Arrival end connection, storage heater（8）Inside spin coil pipe（9）Arrival end it is same
When with the first pipeline（4）The port of export and the second pipeline（5）The port of export connection, the first electric expansion valve（7）It is arranged on first
Pipeline（4）On, the first magnetic valve（6）It is arranged on the second pipeline（5）On, storage heater（8）Inside spin coil pipe（9）The port of export simultaneously
With the 3rd pipeline（10）Arrival end and the 4th pipeline（11）Arrival end connection, the 4th pipeline（11）The port of export changed with outdoor
Hot device（14）Arrival end connection, the second electric expansion valve（12）It is arranged on the 4th pipeline（11）On, outdoor heat exchanger（14）'s
The port of export and the 5th pipeline（15）Arrival end connection, four-way reversing valve（2）Third through-hole simultaneously with the 5th pipeline（15）'s
The port of export and the 3rd pipeline（10）The port of export connection, second solenoid valve（13）It is arranged on the 3rd pipeline（10）On, the 3rd electromagnetism
Valve（16）It is arranged on the 5th pipeline（15）On, four-way reversing valve（3）Fourth hole and gas-liquid separator（17）Arrival end connect
It is logical, gas-liquid separator（17）The port of export and compressor（1）Air entry connection.
A kind of 2. regenerative type air source heat pump system according to claim 1, it is characterised in that the storage heater（8）In
The phase transition temperature of phase change heat storage material is between 10-25 DEG C.
A kind of 3. regenerative type air source heat pump system according to claim 1, it is characterised in that the system heating operation
When control method be：
A. when outside air temperature is higher than switching temperature, switching temperature is in value between -7 DEG C ~ -2 DEG C, indoor heat exchanger（3）
Blower fan run well, the first electric expansion valve（7）And second solenoid valve（13）Close, the first magnetic valve（6）With the 3rd electromagnetism
Valve（16）Open, the second electric expansion valve（12）Regular event；
B. when outside air temperature is less than the switching temperature, under this precondition, when indoor temperature is less than setting value 1
DEG C when, unit starting heat supplying process, indoor heat exchanger（3）Blower fan run well, the first electric expansion valve（6）, the 3rd electromagnetism
Valve（16）With the second electric expansion valve（12）Close, second solenoid valve（13）Open, the first electric expansion valve（7）Regular event,
The process storage heater（8）Heat release, indoor temperature rise, when indoor temperature is higher than 1 DEG C of setting value, unit starting heat-accumulating process,
Indoor heat exchanger（3）Blower fan close, the first electric expansion valve（7）And second solenoid valve（13）Close, the first magnetic valve（6）With
3rd magnetic valve（16）Open, the second electric expansion valve（12）Regular event, the process storage heater（8）Accumulation of heat, under indoor temperature
Drop, when indoor temperature is less than 1 DEG C of setting value, unit switches to heat supplying process again.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710694070.5A CN107525296A (en) | 2017-08-15 | 2017-08-15 | A kind of regenerative type air source heat pump system and its control method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710694070.5A CN107525296A (en) | 2017-08-15 | 2017-08-15 | A kind of regenerative type air source heat pump system and its control method |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0763183A1 (en) * | 1994-06-24 | 1997-03-19 | Store Heat And Produce Energy, Inc. | Heating and cooling systems incorporating thermal storage |
| CN1403756A (en) * | 2001-08-29 | 2003-03-19 | 广东科龙电器股份有限公司 | Uninterrupted heating process and air conditioning system |
| CN102239372A (en) * | 2008-12-02 | 2011-11-09 | 瓦尔梅帕姆朋公司 | Heat pump/air conditioning apparatus with sequential operation |
| CN106225290A (en) * | 2016-07-15 | 2016-12-14 | 珠海格力电器股份有限公司 | Air conditioner and control method thereof |
-
2017
- 2017-08-15 CN CN201710694070.5A patent/CN107525296A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0763183A1 (en) * | 1994-06-24 | 1997-03-19 | Store Heat And Produce Energy, Inc. | Heating and cooling systems incorporating thermal storage |
| CN1403756A (en) * | 2001-08-29 | 2003-03-19 | 广东科龙电器股份有限公司 | Uninterrupted heating process and air conditioning system |
| CN102239372A (en) * | 2008-12-02 | 2011-11-09 | 瓦尔梅帕姆朋公司 | Heat pump/air conditioning apparatus with sequential operation |
| CN106225290A (en) * | 2016-07-15 | 2016-12-14 | 珠海格力电器股份有限公司 | Air conditioner and control method thereof |
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Application publication date: 20171229 |
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