CN109990497A - A kind of low form combustion-gas thermal pump air-conditioning system and its control method - Google Patents
A kind of low form combustion-gas thermal pump air-conditioning system and its control method Download PDFInfo
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- CN109990497A CN109990497A CN201910160564.4A CN201910160564A CN109990497A CN 109990497 A CN109990497 A CN 109990497A CN 201910160564 A CN201910160564 A CN 201910160564A CN 109990497 A CN109990497 A CN 109990497A
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- heat exchanger
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- conditioning system
- pump air
- form combustion
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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
-
- 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
- F25B27/00—Machines, plants or systems, using particular sources of energy
- F25B27/02—Machines, plants or systems, using particular sources of energy using waste heat, e.g. from internal-combustion engines
-
- 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
- F25B2600/00—Control issues
- F25B2600/25—Control of valves
- F25B2600/2513—Expansion valves
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
- Y02A30/274—Relating to heating, ventilation or air conditioning [HVAC] technologies using waste energy, e.g. from internal combustion engine
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The present invention relates to a kind of low form combustion-gas thermal pump air-conditioning system and its control method, the refrigerant circulation circuit constituted including sequentially being connected by compressor, oil eliminator, four-way valve, indoor set heat exchanger, outdoor unit heat exchanger and gas-liquid separator.The compressor is connected by belt with gas engine；The outside of the gas engine is equipped with cooling water tank；The cooling water tank constitutes cooling water circulation loop by water pump and radiator；It further include secondary evaporator, the medium side outlet of the pair evaporator connects the gas-liquid separator, and medium side inlet tube is connected on the pipeline between the indoor set heat exchanger second end and outdoor unit heat exchanger first end；The both ends in the water route of the pair evaporator are connected with the both ends of the radiator respectively；The outdoor unit heat exchanger first end is connected with the outlet of the oil eliminator.The present invention can effectively improve the effect of system heating operation at low temperature, and can avoid electricity shortage bring adverse effect.
Description
Technical field
The present invention relates to a kind of air-conditioning system, especially one kind can effectively improve system heating operation effect at low temperature
Air-conditioning system, specifically a kind of low form combustion-gas thermal pump air-conditioning system and its control method.
Background technique
Existing air-conditioning device is all to drive compressor operation using electric power, to form refrigeration or heating circulation.
As Development of Urbanization is more and more quicker, civilian and commercial power rapidly increases, and foot phenomenon does not become clear day by day electric power.
And air-conditioning is badly in need of seeking to improve as large electricity consumer, avoids impacting user because of electricity shortage.
Meanwhile when winter environment temperature is lower, the heating effect of air-conditioning can also be decreased.Common practice is at present
Increase electric heater unit, Lai Tigao heating effect on machine indoors.But electrically heated low efficiency, power consumption are big, and be easy to cause
The danger such as fire not only further increase power load, aggravate power tense, and there are security risks, need to improve.
Summary of the invention
In view of the deficiencies of the prior art, it is an object of the present invention to provide a kind of low form combustion-gas thermal pump air-conditioning system and its controls
Method processed not only can effectively improve the effect of system heating operation at low temperature, moreover, can also using combustion gas as power come
Source, avoids urban electric power insufficient supply and bring adversely affects, it is ensured that user uses comfortable and convenient.
The technical scheme is that
A kind of low form combustion-gas thermal pump air-conditioning system, including by compressor, oil eliminator, four-way valve, indoor set heat exchanger, outdoor
Machine heat exchanger and gas-liquid separator sequentially connect and the refrigerant circulation circuit that constitutes.
The compressor is connected by belt with gas engine；The outside of the gas engine is equipped with cooling water tank；It should
Cooling water tank constitutes cooling water circulation loop by water pump and radiator；
It further include secondary evaporator, the medium side outlet of the pair evaporator connects the gas-liquid separator, medium side inlet tube
It is connected on the pipeline between the indoor set heat exchanger second end and outdoor unit heat exchanger first end；The water route of the pair evaporator
Both ends be connected respectively with the both ends of the radiator；The outlet phase of the outdoor unit heat exchanger first end and the oil eliminator
Even.
It further, further include thermostat, import A is connected with one end of the cooling water tank, and outlet B is dissipated with described
One end of hot device is connected, and outlet C is connected with the water route port of the secondary evaporator.
It further, further include the first electric expansion valve and the second electric expansion valve；First electric expansion valve is set to
On pipeline between the indoor set heat exchanger second end and the outdoor unit heat exchanger first end；Second electric expansion valve
In the secondary evaporator medium side inlet ductwork.
Further, the outdoor unit heat exchanger is equipped with the first temperature sensor；The pair evaporator refrigerant side outlet
Pipe is equipped with second temperature sensor.
Further, the inlet tube of the gas-liquid separator is equipped with low pressure sensor
Further, the radiator and the outdoor unit heat exchanger are arranged side by side, and in close proximity to.
A kind of control method of low form combustion-gas thermal pump air-conditioning system, comprising the following steps:
1) original state, the step of aperture EV2=0 of the second electric expansion valve；Wherein, the open range of EV2 is 0 ~ 480 step；
2) environment temperature TH1 is detected by the first temperature sensor, and sets system low-voltage target value LP0 accordingly；
3) by low pressure sensor detection system pressure value LP, and corresponding saturation temperature T3 is calculated accordingly；
4) compare LP and LP0；If otherwise the LP < step of LP0-0.3Bar, EV2=100 goes to step 1)；
5) LP is continued to test, and compares LP and LP0；If LP≤LP0+2Bar, step 6) is gone to, otherwise, goes to step 1)；
6) secondary evaporator refrigerant exit end temperature T2 is detected by second temperature sensor, and compares T2 and T3；
7) when 25 DEG C of T2-T3 >, big 12 step is opened within EV2 every 40 seconds, maximum is opened to 480 steps；Then step 5) is gone to；
8) when 22 DEG C of T2-T3 >, big 6 step is opened within EV2 every 40 seconds, maximum is opened to 480 steps；Then step 5) is gone to；
9) when 15 DEG C of T2-T3 <, every 40 seconds 12 steps of reduction of EV2, minimum is opened to 100 steps；Then step 5) is gone to；
10) when 18 DEG C of T2-T3 <, every 40 seconds 6 steps of reduction of EV2, minimum is opened to 100 steps；Then step 5) is gone to.
Further, in the step 2, when TH1≤- 10 DEG C, LP0=2Bar；When > -10 DEG C of TH1, LP0=
2.5Bar。
Beneficial effects of the present invention:
The present invention has rational design, compact structure and easy to use, can make full use of gas engine when environment temperature is lower
Generated heat, exchanges heat with refrigerant, to effectively improve heating effect, meets the use demand of user.Meanwhile may be used also
It avoids using electric power as power source, contribute to alleviate urban electricity supply pressure.
Detailed description of the invention
Fig. 1 is system diagram of the invention.
Fig. 2 is control flow schematic diagram of the invention.
Wherein: 1- compressor, 2- oil eliminator, 3- four-way valve, 4- indoor set heat exchanger, 5- electronic expansion valve of indoor unit,
6- the first electric expansion valve EV1,7- outdoor unit heat exchanger, 8- gas-liquid separator, the first temperature sensor of 9-, 10- low pressure sensing
Device, the second electric expansion valve of 11-, 12- pair evaporator, 13- second temperature sensor, 14- gas engine, 15- cooling water tank,
16- thermostat, 17- radiator, 18- water pump, 19- belt.
Specific embodiment
The present invention is further illustrated with reference to the accompanying drawings and examples.
As shown in Figure 1.
A kind of low form combustion-gas thermal pump air-conditioning system, including exchanged heat by compressor 1, oil eliminator 2, four-way valve 3, indoor unit
Device 4, outdoor unit heat exchanger 7 and gas-liquid separator 8 sequentially connect and the refrigerant circulation circuit that constitutes, specifically: the row of compressor 1
Then the first end that port is successively connected to indoor set heat exchanger 4 after oil eliminator 2 and four-way valve 3 is changed from the indoor unit
The second end of hot device 4 is connected to the first end of outdoor unit heat exchanger 7, then from the second end of the outdoor unit heat exchanger 7 through described four
The entrance of gas-liquid separator 8 is connected to after port valve 3, finally, being connected to the compressor 1 from the outlet of the gas-liquid separator 8
Air entry forms complete refrigerant circulation circuit.Wherein, the indoor set heat exchanger 4 can be multiple parallel connections, and each interior
An electronic expansion valve of indoor unit 5 is equipped on machine heat exchanger 4, convenient for flexibly control.7 first end of outdoor unit heat exchanger with
The outlet of the oil eliminator 2 is connected.
The compressor 1 is belt driven type, is connected by belt 19 with gas engine 14；The gas engine 14
Outside is equipped with cooling water tank 15, effectively to be cooled down in time to the gas engine 14.The cooling water tank 15 also passes through
Water pump 18 and radiator 17 constitute cooling water circulation loop, enter the cooling water after being heated in the radiator 17 through water pump 18
Cool down, is reused after then flowing back to the cooling water tank 15 again, energy conservation and environmental protection.The gas engine can be selected
3GPH88.The compressor can select GHP5212MY2.
The invention also includes secondary evaporator 12, the medium side outlet of the pair evaporator 12 connects the gas-liquid separator 8,
Its medium side inlet tube is connected on the pipeline between 4 second end of indoor set heat exchanger and 7 first end of outdoor unit heat exchanger.
The both ends in the water route of the pair evaporator 14 are connected with the both ends of the radiator 11 respectively, cooling water can be made full use of to be changed
Heat improves service efficiency.
The invention also includes thermostat 16, import A is connected with one end of the cooling water tank 15, outlet B with it is described
One end of radiator 17 is connected, and outlet C is connected with the water route port of the secondary evaporator 12, can be according to coolant water temperature
The flow of the degree automatic adjustment outlet B and the outlet C, that is, when coolant water temperature≤70 DEG C, the aperture of the outlet B is most
Small, the aperture of the outlet C is maximum；When 70 DEG C of cooling water temperature >, the outlet B is gradually opened greatly, the aperture of the outlet C
It is gradually reduced；When 85 DEG C of coolant water temperature >, the outlet B is opened to maximum, and the aperture of the outlet C is minimum.Pass through the constant temperature
The adjusting of device 16 can make cooling water obtain sufficiently effective use, and guarantee the normal operation of system.
The invention also includes the first electric expansion valves 6 and the second electric expansion valve 11, to control the refrigerant in each pipeline
State；First electric expansion valve 6 is set to 4 second end of indoor set heat exchanger and 7 first end of outdoor unit heat exchanger
Between pipeline on；Second electric expansion valve 11 is set on 12 medium side inlet tube of the secondary evaporator.
The outdoor unit heat exchanger 7 is equipped with the first temperature sensor 9, can be used for detecting environment temperature.The secondary evaporation
The medium side outlet of device 12 is equipped with second temperature sensor 13, can detect the temperature of outflow refrigerant.
Further, the radiator 11 is arranged side by side with the outdoor unit heat exchanger 7, and in close proximity to usually 0-
5mm can make adequately to be exchanged heat between the two, improve the utilization rate of cooling water.
When system heating operation, refrigerant is compressed into the gaseous refrigerant of high temperature and pressure in compressor 1, separates in oil
The separation of oil and refrigerant is lubricated in device 2, lubricating oil enters gas-liquid separator 8, and refrigerant is entered the room by the way that four-way valve 3 is laggard
Interior machine heat exchanger 4 is condensed into the liquid refrigerant of medium temperature and medium pressure, and then, liquid refrigerant is divided into two-way, passes through outdoor unit all the way
The throttling of electric expansion valve EV1 6 at low-temp low-pressure gas-liquid mixed state cold-producing medium, into evaporation endothermic in outdoor unit heat exchanger 7 at
For low-temp low-pressure gaseous refrigerant, then gas-liquid separator is flowed into after four-way valve；Another way flows after passing through the second electric expansion valve
Enter secondary evaporator, and exchanges heat in the pair evaporator with the cooling water of high temperature, then flow into gas-liquid separator；Finally, refrigeration
Agent carries out the separation of gaseous refrigerant and liquid refrigerant in gas-liquid separator 8, and gaseous refrigerant is made to enter compressor 1
After re-start circulation.
As shown in Fig. 2, the control method of low form combustion-gas thermal pump air-conditioning system of the present invention the following steps are included:
1) original state, the step of aperture EV2=0 of the second electric expansion valve；Wherein, the open range of EV2 is 0 ~ 480 step；
2) environment temperature TH1 is detected by the first temperature sensor, and sets system low-voltage target value LP0 accordingly；Specifically: when
At TH1≤- 10 DEG C, LP0=2Bar；When > -10 DEG C of TH1, LP0=2.5Bar；
3) by low pressure sensor detection system pressure value LP, and corresponding saturation temperature T3 is calculated accordingly；
4) compare LP and LP0；If otherwise the LP < step of LP0-0.3Bar, EV2=100 goes to step 1)；
5) LP is continued to test, and compares LP and LP0；If LP≤LP0+2Bar, step 6) is gone to, otherwise, goes to step 1)；
6) secondary evaporator refrigerant exit end temperature T2 is detected by second temperature sensor, and compares T2 and T3；
7) when 25 DEG C of T2-T3 >, big 12 step is opened within EV2 every 40 seconds, maximum is opened to 480 steps；Then step 5) is gone to；
8) when 22 DEG C of T2-T3 >, big 6 step is opened within EV2 every 40 seconds, maximum is opened to 480 steps；Then step 5) is gone to；
9) when 15 DEG C of T2-T3 <, every 40 seconds 12 steps of reduction of EV2, minimum is opened to 100 steps；Then step 5) is gone to；
10) when 18 DEG C of T2-T3 <, every 40 seconds 6 steps of reduction of EV2, minimum is opened to 100 steps；Then step 5) is gone to.
The present invention can be lower in outdoor temperature, when the heat transfer effect of time heat exchanger being caused to be deteriorated, flows through pair by increasing
The flow of the refrigerant of evaporator absorbs more heats from the higher cooling water of temperature, to promote heating effect.
Part that the present invention does not relate to is the same as those in the prior art or can be realized by using the prior art.
Claims (8)
1. a kind of low form combustion-gas thermal pump air-conditioning system, including by compressor, oil eliminator, four-way valve, indoor set heat exchanger, room
Outer machine heat exchanger and gas-liquid separator sequentially connect and the refrigerant circulation circuit that constitutes,
It is characterized in that the compressor is connected by belt with gas engine；The outside of the gas engine is equipped with cooling water
Case；The cooling water tank constitutes cooling water circulation loop by water pump and radiator；
It further include secondary evaporator, the medium side outlet of the pair evaporator connects the gas-liquid separator, medium side inlet tube
It is connected on the pipeline between the indoor set heat exchanger second end and outdoor unit heat exchanger first end；The water route of the pair evaporator
Both ends be connected respectively with the both ends of the radiator；The outlet phase of the outdoor unit heat exchanger first end and the oil eliminator
Even.
2. low form combustion-gas thermal pump air-conditioning system according to claim 1, it is characterized in that further including thermostat, import A
It is connected with one end of the cooling water tank, outlet B is connected with one end of the radiator, outlet C and the secondary evaporator
Water route port be connected.
3. low form combustion-gas thermal pump air-conditioning system according to claim 1, it is characterized in that further including the first electric expansion valve
With the second electric expansion valve；First electric expansion valve is set to the indoor set heat exchanger second end and the outdoor unit exchanges heat
On pipeline between device first end；Second electric expansion valve is set in the secondary evaporator medium side inlet ductwork.
4. low form combustion-gas thermal pump air-conditioning system according to claim 1, it is characterized in that being set on the outdoor unit heat exchanger
There is the first temperature sensor；The pair evaporator medium side outlet is equipped with second temperature sensor.
5. low form combustion-gas thermal pump air-conditioning system according to claim 1, it is characterized in that the import of the gas-liquid separator
Pipe is equipped with low pressure sensor.
6. low form combustion-gas thermal pump air-conditioning system according to claim 1, it is characterized in that the radiator and the outdoor
Machine heat exchanger is arranged side by side, and in close proximity to.
7. a kind of control method of low form combustion-gas thermal pump air-conditioning system, it is characterized in that the following steps are included:
1) original state, the step of aperture EV2=0 of the second electric expansion valve；Wherein, the open range of EV2 is 0 ~ 480 step；
2) environment temperature TH1 is detected by the first temperature sensor, and sets system low-voltage target value LP0 accordingly；
3) by low pressure sensor detection system pressure value LP, and corresponding saturation temperature T3 is calculated accordingly；
4) compare LP and LP0；If otherwise the LP < step of LP0-0.3Bar, EV2=100 goes to step 1)；
5) LP is continued to test, and compares LP and LP0；If LP≤LP0+2Bar, step 6) is gone to, otherwise, goes to step 1)；
6) secondary evaporator refrigerant exit end temperature T2 is detected by second temperature sensor, and compares T2 and T3；
7) when 25 DEG C of T2-T3 >, big 12 step is opened within EV2 every 40 seconds, maximum is opened to 480 steps；Then step 5) is gone to；
8) when 22 DEG C of T2-T3 >, big 6 step is opened within EV2 every 40 seconds, maximum is opened to 480 steps；Then step 5) is gone to；
9) when 15 DEG C of T2-T3 <, every 40 seconds 12 steps of reduction of EV2, minimum is opened to 100 steps；Then step 5) is gone to；
10) when 18 DEG C of T2-T3 <, every 40 seconds 6 steps of reduction of EV2, minimum is opened to 100 steps；Then step 5) is gone to.
8. the control method of low form combustion-gas thermal pump air-conditioning system according to claim 7, it is characterized in that the step 2
In, when TH1≤- 10 DEG C, LP0=2Bar；When > -10 DEG C of TH1, LP0=2.5Bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910160564.4A CN109990497A (en) | 2019-03-04 | 2019-03-04 | A kind of low form combustion-gas thermal pump air-conditioning system and its control method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910160564.4A CN109990497A (en) | 2019-03-04 | 2019-03-04 | A kind of low form combustion-gas thermal pump air-conditioning system and its control method |
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| CN109990497A true CN109990497A (en) | 2019-07-09 |
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| CN201910160564.4A Pending CN109990497A (en) | 2019-03-04 | 2019-03-04 | A kind of low form combustion-gas thermal pump air-conditioning system and its control method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112815572A (en) * | 2021-01-18 | 2021-05-18 | 中科广能能源研究院(重庆)有限公司 | Gas heat pump air conditioning system and rapid heating and liquid-proof compression control method |
| CN114440489A (en) * | 2020-12-28 | 2022-05-06 | 中科广能能源研究院(重庆)有限公司 | Gas heat pump multi-connected unit air conditioning system and control method thereof |
| CN114719458A (en) * | 2022-04-08 | 2022-07-08 | 哈尔滨工业大学 | Quasi-second-stage compression gas heat pump unit suitable for air supplement adjustable type in severe cold area |
| CN114777238A (en) * | 2022-05-06 | 2022-07-22 | 南京天加环境科技有限公司 | Cold and hot water unit of low-temperature gas heat pump |
| CN115164427A (en) * | 2022-08-04 | 2022-10-11 | 南京天加环境科技有限公司 | Gas heat pump device, control method thereof and air conditioning system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02192555A (en) * | 1989-01-19 | 1990-07-30 | Nippondenso Co Ltd | Heat pump |
| JP2000241043A (en) * | 1999-02-22 | 2000-09-08 | Aisin Seiki Co Ltd | Gas engine driven air conditioner |
| JP2001355940A (en) * | 2000-06-16 | 2001-12-26 | Denso Corp | Heat pump device |
| CN104620063A (en) * | 2012-09-06 | 2015-05-13 | 洋马株式会社 | Engine-driven heat pump chiller |
| JP2015210012A (en) * | 2014-04-25 | 2015-11-24 | アイシン精機株式会社 | Engine-driven type air conditioner |
| CN106257158A (en) * | 2016-07-29 | 2016-12-28 | 东南大学 | A kind of hybrid-power combustion-gas thermal pump water-heater system and control method thereof |
-
2019
- 2019-03-04 CN CN201910160564.4A patent/CN109990497A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02192555A (en) * | 1989-01-19 | 1990-07-30 | Nippondenso Co Ltd | Heat pump |
| JP2000241043A (en) * | 1999-02-22 | 2000-09-08 | Aisin Seiki Co Ltd | Gas engine driven air conditioner |
| JP2001355940A (en) * | 2000-06-16 | 2001-12-26 | Denso Corp | Heat pump device |
| CN104620063A (en) * | 2012-09-06 | 2015-05-13 | 洋马株式会社 | Engine-driven heat pump chiller |
| JP2015210012A (en) * | 2014-04-25 | 2015-11-24 | アイシン精機株式会社 | Engine-driven type air conditioner |
| CN106257158A (en) * | 2016-07-29 | 2016-12-28 | 东南大学 | A kind of hybrid-power combustion-gas thermal pump water-heater system and control method thereof |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114440489A (en) * | 2020-12-28 | 2022-05-06 | 中科广能能源研究院(重庆)有限公司 | Gas heat pump multi-connected unit air conditioning system and control method thereof |
| CN114440489B (en) * | 2020-12-28 | 2023-11-07 | 中科广能能源研究院(重庆)有限公司 | Air conditioning system of gas heat pump multi-unit and control method thereof |
| CN112815572A (en) * | 2021-01-18 | 2021-05-18 | 中科广能能源研究院(重庆)有限公司 | Gas heat pump air conditioning system and rapid heating and liquid-proof compression control method |
| CN114719458A (en) * | 2022-04-08 | 2022-07-08 | 哈尔滨工业大学 | Quasi-second-stage compression gas heat pump unit suitable for air supplement adjustable type in severe cold area |
| CN114777238A (en) * | 2022-05-06 | 2022-07-22 | 南京天加环境科技有限公司 | Cold and hot water unit of low-temperature gas heat pump |
| CN114777238B (en) * | 2022-05-06 | 2024-03-08 | 南京天加环境科技有限公司 | Cold and hot water unit of low-temperature gas heat pump |
| CN115164427A (en) * | 2022-08-04 | 2022-10-11 | 南京天加环境科技有限公司 | Gas heat pump device, control method thereof and air conditioning system |
| CN115164427B (en) * | 2022-08-04 | 2023-12-19 | 南京天加环境科技有限公司 | Gas heat pump device, control method thereof and air conditioning system |
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Application publication date: 20190709 |