CN1584449A - Air-cooled hot pumping hot air cold water set driven by gas engine - Google Patents
Air-cooled hot pumping hot air cold water set driven by gas engine Download PDFInfo
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- CN1584449A CN1584449A CNA2004100246775A CN200410024677A CN1584449A CN 1584449 A CN1584449 A CN 1584449A CN A2004100246775 A CNA2004100246775 A CN A2004100246775A CN 200410024677 A CN200410024677 A CN 200410024677A CN 1584449 A CN1584449 A CN 1584449A
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- 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
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
- Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply
Abstract
An air-cooling hot pump style water cooling/heating apparatus powered by a gas engine consists of a gas engine, a set of vapor compression hot pump system, and a cooling and waste heat recovering system of the engine. A water-refrigerant exchanger and a water-water exchanger are used to recover waste heat of the engine. The parts of the apparatus comprises a compressor, a four-way valve, a plate exchanger, an expanding valve, a rib exchanger, a water-water exchanger, water-cooling valve set, a bypass solenoid valve, and a water-refrigerant exchanger. The water-cooling valve set controls flow of cooling water so as to use waste heat reasonably.
Description
Technical field
What the present invention relates to is a kind of air-cooled heat pump type hot and cold water unit, particularly a kind of is power with the gas engine, the driving steam compression heat pump circulates, and the gas-engine-driven air-cooled heat pump type hot and cold water unit of air conditioner cold and hot water can be provided, and belongs to the Refrigeration ﹠ Air-Conditioning technical field.
Background technology
Along with China's rapid development of economy, the urban architecture air-conditioning is universal day by day.Air-cooled heat pump type hot and cold water unit occupies in the urban architecture air-conditioning equipment of China and comes many proportion more as a kind of easy for installation, cold and heat source apparatus that air conditioner cold and hot water can be provided.At present, air-cooled heat pump type hot and cold water unit generally all adopts Motor Drive, and the utilization of a large amount of air-cooled heat pump type hot and cold water units and other air-conditioning equipment makes the electric power resource consumption of heat supply and heating season constantly increase, and the electric power peak-valley difference is serious day by day.
Replace electric motor driven steam compression heat pump unit to have many advantages with gas engine: (1) can adopt non-electricity resources such as natural gas, town gas, oil gas as the unit energy, therefore reduced the consumption of air-conditioning system, alleviated the peak-valley difference in season of electric power electric power resource; (2) recyclable engine exhaust heat in heat supplying process, system has high energy utilization rate; (3) gas engine can realize the speed change adjusting, and the heat pump part load performance is better.But in gas-burning machine heat pump design, how at the weather conditions of different regions, rationally utilizing the waste heat of engine in heat pump, design the gas-burning machine heat pump of high energy efficiency ratio, is that gas engine drives a major issue in the heat pump design.
In existing technology, a kind of " one drag many " gas heat pump type air conditioner (number of patent application: 02130144.1 and 02105515.7) of joining many indoor sets with an off-premises station is arranged.It adopts the mode (being called " cryogen formula gas-burning machine heat pump " here) of cold-producing medium-air direct heat exchange to realize the purpose of cooling and heat supply.The characteristics of " cryogen formula gas-burning machine heat pump " are at the outdoor finned tube exchanger side cold-producing medium-water-to-water heat exchanger that has been connected in parallel, by this heat exchanger the waste heat of the engine that is recovered to is discharged and to have given heat pump low-pressure side cold-producing medium, born the sub-load of evaporimeter, improve the thermo-compression evaporation temperature of cold district, improved the efficient of heat pump.For the gentle relatively area of outdoor temperature in winter, adopt " cryogen formula gas-burning machine heat pump " can improve the evaporating temperature of heat pump really, thereby improve the heating efficiency of heat pump.But " cryogen formula gas-burning machine heat pump " also reduced the absorption to the renewable heat of environment simultaneously.That is to say that " cryogen formula gas-burning machine heat pump " is that the waste heat with engine has substituted the heat that should absorb from air.When particularly afterheat utilization caused evaporating temperature to be higher than environment temperature, finned-tube evaporator can not absorb heat from outdoor air, thereby can not give full play to the characteristic that heat pump can utilize low taste thermal source.In addition, " cryogen formula gas-burning machine heat pump " adopts cold-producing medium is hot and cold amount pumped (conveying) medium, and therefore hot and cold amount is carried and is limited in scope, unit capacity can not be excessive, also to take into full account technical problems such as compressor oil return, cold distribution during the system pipeline design, the investment of equipment height, installation difficulty is big.
Summary of the invention
In order to remedy the deficiencies in the prior art, enlarge the range of application of gas engine driven heat pump, designed this gas-engine-driven air-cooled heat pump type hot and cold water unit.This unit is made up of a gas engine engine, a cover steam compression heat pump system and gas engine cooling and residual neat recovering system.Engine directly is connected realization by clutch with turning cylinder with power transmission between the heat pump, and the UTILIZATION OF VESIDUAL HEAT IN of engine realizes by a water-water heat exchanger and a water-refrigerant heat exchanger.
Main feature of the present invention is, between gas engine part and heat pump part, be provided with water-refrigerant heat exchanger and water-water heat exchanger, and designed a cooling water flow direction control valve group, can be according to the hot and cold water unit in different application scenarios, different climatic environments, different unit working conditions is by the control program of valve group, the flow direction of correct switching engine cooling water, reasonable distribution and the waste heat that utilizes gas engine.For example, under unit is operated in than low ambient temperature (frosting appears in the heat pump finned tube exchanger), when the heating efficiency of heat pump own is very low, engine cooling water is switched to water-refrigerant heat exchanger, utilize engine exhaust heat to bear the part Load Evaporator, thereby improve the heating capacity of heat pump water chiller-heater unit; When unit is operated under the general low temperature environment, then engine cooling water is switched to water-water heat exchanger, make source pump fully absorb heat in the air, and engine exhaust heat is directly supplied with air conditioning hot; When unit is under the cooling condition,, engine exhaust heat is discharged in the environment by the unit blower fan for guaranteeing that engine normally moves.In addition, low excessively for avoiding the engine cooling water inflow temperature, in the cooling water valve group, be provided with bypass circulation, fully guarantee the operate as normal of engine.
The present invention can rationally utilize the waste heat of gas engine, realizes effective utilization of the energy, has obvious energy-saving effect.
Description of drawings
Fig. 1 is the gas-engine-driven air-cooled heat pump type of a present invention hot and cold water unit structural representation
Fig. 2 flows to the switching controls structure principle chart for cooling water valve group of the present invention
The first embodiment schematic diagram of Fig. 3 during for unit heat supply running of the present invention
The second embodiment schematic diagram of Fig. 4 during for unit heat supply running of the present invention
Embodiment schematic diagram when Fig. 5 moves for unit cooling of the present invention
Among the figure, the 1st, gas engine, the 2nd, clutch, the 3rd, compressor, the 4th, gas-liquid separator, the 5th, cross valve, the 6th, plate type heat exchanger, the 7th, A check valve, the 8th, B check valve, the 9th, C check valve, the 10th, D check valve, the 11st, A stop valve, the 12nd, the B stop valve, the 13rd, expansion valve, the 14th, show mirror, the 15th, filter, the 16th, reservoir, the 17th, blower fan, the 18th, finned tube exchanger, the 19th, radiator, the 20th, water-refrigerant heat exchanger, the 21st, bypass solenoid valve, the 22nd, cooling water valve group, the 23rd, water-water heat exchanger, the 24th, the flue gas heat exchange device, the 25th, cooling water pump, the 26th, combustion gas pressure-reducing valve, the 27th, valve group controller
Among the figure, the flow direction of fluid is represented with the direction of arrow in the pipeline.Heavy line is represented the cold-producing medium circulation, and fine line is represented the air conditioner cold and hot water circulation, and dotted line is represented the engine cooling water circulation.
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is further described.
As shown in Figure 1 and Figure 2, the present invention includes gas engine 1, clutch 2, compressor 3, gas-liquid separator 4, cross valve 5, plate type heat exchanger 6, A check valve 7, B check valve 8, C check valve 9, D check valve 10, A stop valve 11, B stop valve 12, expansion valve 13, show mirror 14, filter 15, reservoir 16, blower fan 17, finned tube exchanger 18, radiator 19, water-refrigerant heat exchanger 20, bypass solenoid valve 21, cooling water valve group 22, water-water heat exchanger 23, flue gas heat exchange device 24, cooling water pump 25, combustion gas pressure-reducing valve 26, valve group controller 27.
Hot and cold water unit of the present invention can be divided into two parts: gas engine part and heat pump part, the heat exchange of gas engine part and heat pump part realizes that by water-refrigerant heat exchanger 20 and water-water 23 heat exchangers the flow direction of gas engine cooling water is by being switched by the cooling water valve group 22 of valve group controller 27 controls.
In the heat pump part, the outlet of compressor 3 is connected with the import (D pipe) of cross valve 5, the E pipe of cross valve 5 is connected with an end of plate type heat exchanger 6 refrigerant flow path, the other end of plate type heat exchanger 6 refrigerant flow path is connected with the entrance point of the outlet of A check valve 7 and D check valve 10, the entrance point of the outlet of B check valve 8 and C check valve 9 all is connected with an end of finned tube exchanger 18 refrigerant flow path, the finned tube exchanger 18 refrigerant flow path other ends are connected with refrigerant flow path one end of water-refrigerant heat exchanger 20, and the other end of water-refrigerant heat exchanger 20 refrigerant flow path is connected with the C pipe of cross valve 5.Be connected to a bypass solenoid valve 21 in the turnover port of water-refrigerant heat exchanger 20 refrigerant flow path.Cross valve 5 outlets (S pipe) are connected with the import of gas-liquid separator 4, and the outlet of gas-liquid separator 4 is connected with the import of compressor 3.The outlet of C check valve 9 and D check valve 10 all is connected with the import of reservoir 16, the outlet of reservoir 16 by A stop valve 11, filter 15, show mirror 14, be connected with the import of A check valve 7 through B stop valve 12 again after expansion valve 13 is connected with B check valve 8.In the air conditioner water closed circuit, the return pipe of air-conditioning system is connected with the air conditioner water runner import of plate type heat exchanger 6, the air conditioner water runner exit of plate type heat exchanger 6 is connected with the air conditioner water runner import of water-water heat exchanger 23, and the air conditioner water runner exit of water-water heat exchanger 23 is connected with the air-conditioning system water inlet pipe.
In the engine system part, the coolant outlet of engine is connected with the import of flue gas heat exchanger 24 cooling water runners, the cooling water runner exit of flue gas heat exchanger 24 is connected with a of cooling water valve group 22 end, and 19 imports are connected with radiator with the engine cool water flow passage import of water-water heat exchanger 23 engine cool water flow passage imports, water-refrigerant heat exchanger 20 respectively for the b end of cooling water valve group 22, c end and d end.The e end of the outlet of the engine cooling water runner exit of water-refrigerant heat exchanger 20, the engine cool water flow passage of water-water heat exchanger 23, the outlet of radiator 19 and cooling water valve group 22 all is connected with the import of engine cooling water pump 25.The outlet of engine cooling water pump 25 is connected with the cooling water inlet of gas engine 1.Gas engine 1 is connected with flue gas heat exchange device 24 chimney intakes by exhaust uptake.Blower fan 17 is installed in the top of radiator 19 and finned tube exchanger 18, is used for the heat radiation of cooling water of gas engine 1 and the heat exchange of cold-producing medium and air.
Unit of the present invention has two kinds of embodiments when heat supply running.
Heat supply running first embodiment
As shown in Figure 3, first embodiment during hot and cold water unit heat supply running of the present invention is to occur in outdoor being under the general low temperature environment.In this heat-supplying mode, cross valve 5 switches to heat supply mode, make gas heat release in plate type heat exchanger 6 that compressor 3 is discharged, after cold-producing medium flows out from plate type heat exchanger 6, enter finned tube exchanger 18 through reservoir 16, filter 15, after showing mirror 14, expansion valve 13 and absorb the air heats.Because in this heat supply running mode, water in water-refrigerant heat exchanger 20 in the engine cool water flow passage remains static, in order to prevent the water freezing in the heat exchanger, be provided with a bypass solenoid valve that can two-way circulate 21 at finned tube exchanger 18 refrigerant flow path two ends, make cold-producing medium turn back to the C pipe of cross valve 5 by this bypass solenoid valve.
In the engine cool water loop, the triple valve by valve group controller 27 control cooling water valve groups 22 inside makes that a end and b termination are logical.At this moment, the cooling water through the cylinder sleeve and the flue gas heat exchange device 24 of gas engine 1 heated discharges heat to returning gas engine 1 behind the air conditioner water in water-water heat exchanger 23, realizes the UTILIZATION OF VESIDUAL HEAT IN of gas engine 1.
Heat supply running second embodiment
As shown in Figure 4, second embodiment during heat supply running of hot and cold water unit of the present invention is to occur in outdoor occasion than low ambient temperature.Frosting is frequent at low temperatures owing to air source heat pump, and the coefficient of performance of source pump can sharply descend, even can not heat.For guaranteeing that unit still can heat at low temperatures, can adopt this embodiment.
In this embodiment, the cold-producing medium endless form of heat pump is basic identical with first embodiment of heat supply running.Different is with first kind of embodiment, this outdoor than under the low ambient temperature, closes by valve group controller 27 control bypass solenoid valves 21, after cold-producing medium flows through water-refrigerant heat exchanger 20, returns compressor 3 behind cross valve 5 and gas-liquid separator 4.
In the engine cool water loop, switch by the triple valve of valve group controller 27 cooling water valve group 22 inside, make that a end and c termination are logical.At this moment, flue gas heat exchange device 24 is connected with water-refrigerant heat exchanger 20, thereby makes gas engine 1, flue gas heat exchange device 24 and water-refrigerant heat exchanger 20 form a loop.Cooling water after the cylinder sleeve heating of gas engine 1 flows out from the cylinder sleeve of gas engine 1, entering flue gas heat exchange device 24 heats once more, by water-refrigerant heat exchanger 20 heat is discharged to returning gas engine 1 behind the low pressure refrigerant then, realize UTILIZATION OF VESIDUAL HEAT IN.
Cooling operation embodiment
As shown in Figure 5, embodiment when the cooling of hot and cold water unit of the present invention moves is that cross valve is switched to refrigeration mode, make the exhaust outlet of compressor 3 be connected with finned tube exchanger 18, high-temperature high-pressure refrigerant by finned tube exchanger 18 after the environment heat release, through reservoir 16, filter 15, show that mirror 14, expansion valve 13 are laggard and go into that board-like heat exchanger 6 absorbs heats after cross valve 5, gas-liquid separator 4 return compressor 3.For avoiding the cold-producing medium heating of the HTHP that cooling water static in water-refrigerant heat exchanger 20 cooling water runners discharged by compressor, cause steam to produce, by valve group controller 27 bypass solenoid valve 21 is opened, made the refrigerant bypass of compressor 1 outlet to finned tube exchanger 18.Under cooling condition, because the effect of pressure reduction is connected on A check valve and the conducting of C check valve between plate type heat exchanger 6 and the finned tube exchanger 18, B check valve and D check valve are obstructed, can guarantee that like this cold-producing medium passes through expansion valve 13 from same direction all the time.
In refrigerating operaton, in order to guarantee to start function normally to move, and the ponding that has in the flue gas heat exchange device 24 when avoiding refrigerating operaton is heated to boiling.Connect an engine exhaust heat radiator 19 in the system.Radiator 19 is connected with the cooling water inlet end of gas engine 1 with the e of cooling water valve group 22 end, and with engine 1, heat-radiation loop of flue gas heat exchange device 24 compositions, discharge the waste heat of gas engine 1 by the mode of carrying out heat exchange with outdoor air.
Valve group control structure principle
As shown in Figure 2, the input signal of valve group controller 27 is an outdoor temperature, the mode of operation of finned tube exchanger outlet temperature, water inflow of the engine temperature, unit.Specific implementation process is as follows: unit at first determines that according to the mode of operation of system unit is in heat supply or refrigeration mode, and when being in heat supply mode, cooling water valve group 22 is connected a, b two ends or a, c two ends; When unit was in refrigeration mode, cooling water valve group 22 was connected a, d two ends.Under heating mode, at first cooling water valve group 22 is connected a, b two ends, and waste heat is additional to air conditioner water.In the running, judge according to outdoor temperature and finned tube 18 outlet temperatures, if the finned tube exchanger outlet temperature is low excessively, then a, the c two ends of cooling water valve group 22 are connected, make engine exhaust heat bear the part heat of finned-tube evaporator 18, as finned tube exchanger 18 outlet temperatures is not very low, then a, the b two ends of cooling water valve group 22 is connected, and waste heat is additional to air conditioner water.When outdoor temperature is very low, and a of cooling water valve group 22, c two ends connect a, the b two ends port of cooling water valve group 22 when connecting unit and still being in the frosting situation, switches cross valve, makes source pump itself be in the defrosting running.
Which kind of no matter under pattern, work, for guaranteeing to start function to work normally and efficiently, the cooling water temperature that enters engine can not be lower than 80 ℃, when being lower than 80 ℃, a, the e two ends of valve group 22 are connected, directly the cooling water bypass with 24 outlets of flue gas heat exchange device postbacks motivation, when treating that the water inflow of the engine temperature rises to 85 ℃, by valve group controller 27 cooling water valve group 22 is switched to corresponding waste heat recovery or heat radiation position again.
For bypass solenoid valve 21, only under the state of connecting at a of cooling water valve group 22, c two ends, just be in closed condition.In other cases, this valve is opened without exception.This switching controls pattern of engine cool water valve group 22 has guaranteed that unit moves all the time under the pattern of highly effective and safe.
Claims (4)
1. gas-engine-driven air-cooled heat pump type hot and cold water unit, comprise gas engine (1), clutch (2), compressor (3), gas-liquid separator (4), cross valve (5), plate type heat exchanger (6), A check valve (7), B check valve (8), C check valve (9), D check valve (10), A stop valve (11), B stop valve (12), expansion valve (13), show mirror (14), filter (15), reservoir (16), blower fan (17), finned tube exchanger (18), radiator (19), flue gas heat exchange device (24), cooling water pump (25), combustion gas pressure-reducing valve (26), it is characterized in that also comprising water-refrigerant heat exchanger (20), bypass solenoid valve (21), valve group (22), water-water heat exchanger (23), valve group controller (27), the heat exchange of gas engine part and heat pump part realizes that by water-refrigerant heat exchanger (20) and water-water heat exchanger (23) cooling water flow of gas engine (1) switches to the cooling water valve group of passing through by valve group controller (27) control (22).
2. according to the described gas-engine-driven air-cooled heat pump type hot and cold water unit of claim (1), it is characterized in that in the heat pump part, the outlet of compressor (3) is connected with the import of cross valve (5) (D pipe), the E pipe of cross valve (5) is connected with an end of plate type heat exchanger (6) refrigerant flow path, the other end of plate type heat exchanger (6) refrigerant flow path is connected with the entrance point of the outlet of A check valve (7) and D check valve (10), the entrance point of the outlet of B check valve (8) and C check valve (9) all is connected with an end of finned tube exchanger (18) refrigerant flow path, finned tube exchanger (18) the refrigerant flow path other end is connected with refrigerant flow path one end of water-refrigerant heat exchanger (20), the other end of water-refrigerant heat exchanger (20) refrigerant flow path is connected with the C pipe of cross valve (5), turnover port in water-refrigerant heat exchanger (20) refrigerant flow path is connected to bypass solenoid valve (21), cross valve (5) outlet (S pipe) is connected with the import of gas-liquid separator (4), the outlet of gas-liquid separator (4) is connected with the import of compressor (3), the outlet of C check valve (9) and D check valve (10) all is connected with the import of reservoir (16), the outlet of reservoir (16) is by A stop valve (11), filter (15), show mirror (14), with be connected with the import of A check valve (7) through B stop valve (12) again after expansion valve (13) is connected with B check valve (8), in the air conditioner water closed circuit, the return pipe of air-conditioning system is connected with the air conditioner water runner import of plate type heat exchanger (6), the air conditioner water runner exit of plate type heat exchanger (6) is connected with the air conditioner water runner import of water-water heat exchanger (23), and the air conditioner water runner exit of water-water heat exchanger (23) is connected with the air-conditioning system water inlet pipe.
3. gas-engine-driven air-cooled heat pump type hot and cold water unit according to claim 1, it is characterized in that in the gas engine system part, the coolant outlet of gas engine (1) is connected with the import of flue gas heat exchanger (24) cooling water runner, the cooling water runner exit of flue gas heat exchanger (24) is connected with a end of cooling water valve group (22), the b end of cooling water valve group (22), c end and d hold respectively and the import of water-water heat exchanger (23) engine cool water flow passage, import is connected with radiator (19) in the engine cool water flow passage import of water-refrigerant heat exchanger (20), the engine cooling water runner exit of water-refrigerant heat exchanger (20), the outlet of the engine cool water flow passage of water-water heat exchanger (23), the e end of the outlet of radiator (19) and cooling water valve group (22) all is connected with the import of engine cooling water pump (25), the outlet of engine cooling water pump (25) is connected with the cooling water inlet of gas engine (1), gas engine (1) is connected with flue gas heat exchange device (24) chimney intake by exhaust uptake, blower fan (17) is installed in the top of radiator (19) and finned tube exchanger (18), gas engine (1) is carried out axle with compressor (3) by clutch (2) and is connected, and fuel supply pipe is connected by the fuel inlet of pressure-reducing valve (26) with gas engine (1).
4. gas-engine-driven air-cooled heat pump type hot and cold water unit according to claim 1,3 inputs that it is characterized in that valve group controller (27) are electrically connected with the output of outdoor temperature sensor, finned tube leaving air temp sensor and water inflow of the engine temperature sensor respectively, another input is electrically connected with cold and hot operational mode change-over switch, 3 outputs of valve group controller (27) are connected with the control end of inner 3 magnetic valves of cooling water valve group (22) respectively, and another output is connected with the control end of bypass solenoid valve (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100246775A CN100487342C (en) | 2004-05-27 | 2004-05-27 | Air-cooled hot pumping hot air cold water set driven by gas engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100246775A CN100487342C (en) | 2004-05-27 | 2004-05-27 | Air-cooled hot pumping hot air cold water set driven by gas engine |
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| Publication Number | Publication Date |
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| CN1584449A true CN1584449A (en) | 2005-02-23 |
| CN100487342C CN100487342C (en) | 2009-05-13 |
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| CNB2004100246775A Expired - Fee Related CN100487342C (en) | 2004-05-27 | 2004-05-27 | Air-cooled hot pumping hot air cold water set driven by gas engine |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100383476C (en) * | 2006-04-19 | 2008-04-23 | 东南大学 | Household gas-fired heat pump air conditioner |
| CN101865501A (en) * | 2010-06-13 | 2010-10-20 | 大连三洋制冷有限公司 | Semi-hot recovery type GHP (Gross Horse Power) gas engine drive air conditioner/heat pump unit |
| CN102135344A (en) * | 2011-03-30 | 2011-07-27 | 上海本家空调系统有限公司 | Heat energy air conditioner with heat recycling function |
| CN105318601A (en) * | 2015-11-13 | 2016-02-10 | 清华大学 | Air source flexible gas heat pump unit and operation method thereof |
| CN106440501A (en) * | 2016-11-18 | 2017-02-22 | 天津城建大学 | Running method of heat pump unit of energy-self-supplied gas engine |
| CN107621094A (en) * | 2017-09-29 | 2018-01-23 | 中国科学院广州能源研究所 | A kind of oil gas dual-fuel cool and thermal power air-conditioning heat pump device |
| CN108240718A (en) * | 2016-12-26 | 2018-07-03 | 蓝焰高科（天津）燃气技术有限公司 | A kind of energy automatically supplies the driving compression type heat pump assembly of multifunction burning mechanism of qi |
| CN110030763A (en) * | 2019-04-18 | 2019-07-19 | 蓝焰高科（天津）燃气技术有限公司 | Gas engine drives steam compression type Air Resource Heat Pump Unit operation method |
| CN111102066A (en) * | 2019-12-13 | 2020-05-05 | 华鼎电源(天津)有限公司 | Gas generator system for combined production of heat, power and cold and control method thereof |
| CN113686022A (en) * | 2021-08-24 | 2021-11-23 | 南京天加环境科技有限公司 | Improved gas heat pump water chiller-heater unit |
| CN113899105A (en) * | 2021-11-22 | 2022-01-07 | 上海本家空调系统有限公司 | Engine-driven air source heat pump |
| CN113899103A (en) * | 2021-11-22 | 2022-01-07 | 上海本家空调系统有限公司 | Engine-driven air source heat pump unit |
| CN114151965A (en) * | 2020-09-04 | 2022-03-08 | 蓝焰高科（天津）燃气技术有限公司 | Operation method of air source gas engine heat pump water heater |
| 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 |
| CN115307234A (en) * | 2022-08-05 | 2022-11-08 | 南京天加环境科技有限公司 | Gas heat pump water chiller-heater unit capable of efficiently heating and control method thereof |
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2004
- 2004-05-27 CN CNB2004100246775A patent/CN100487342C/en not_active Expired - Fee Related
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100383476C (en) * | 2006-04-19 | 2008-04-23 | 东南大学 | Household gas-fired heat pump air conditioner |
| CN101865501A (en) * | 2010-06-13 | 2010-10-20 | 大连三洋制冷有限公司 | Semi-hot recovery type GHP (Gross Horse Power) gas engine drive air conditioner/heat pump unit |
| CN101865501B (en) * | 2010-06-13 | 2012-01-25 | 大连三洋制冷有限公司 | Semi-hot recovery type GHP (Gross Horse Power) gas engine drive air conditioner/heat pump unit |
| CN102135344A (en) * | 2011-03-30 | 2011-07-27 | 上海本家空调系统有限公司 | Heat energy air conditioner with heat recycling function |
| CN105318601A (en) * | 2015-11-13 | 2016-02-10 | 清华大学 | Air source flexible gas heat pump unit and operation method thereof |
| CN105318601B (en) * | 2015-11-13 | 2017-12-15 | 清华大学 | A kind of air-source flexibility gas-fired heat pump unit and its operation method |
| CN106440501A (en) * | 2016-11-18 | 2017-02-22 | 天津城建大学 | Running method of heat pump unit of energy-self-supplied gas engine |
| CN106440501B (en) * | 2016-11-18 | 2018-10-23 | 天津城建大学 | A kind of energy automatically supplies gas-burning machine heat pump formula unit operation method |
| CN108240718A (en) * | 2016-12-26 | 2018-07-03 | 蓝焰高科（天津）燃气技术有限公司 | A kind of energy automatically supplies the driving compression type heat pump assembly of multifunction burning mechanism of qi |
| CN107621094B (en) * | 2017-09-29 | 2024-03-08 | 中国科学院广州能源研究所 | Oil-gas dual-fuel cold-hot electric air conditioner heat pump device |
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