CN105466066A - Control method for low-circumstance-temperature liquid spray type air source triple cogeneration unit - Google Patents
Control method for low-circumstance-temperature liquid spray type air source triple cogeneration unit Download PDFInfo
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- CN105466066A CN105466066A CN201510935132.8A CN201510935132A CN105466066A CN 105466066 A CN105466066 A CN 105466066A CN 201510935132 A CN201510935132 A CN 201510935132A CN 105466066 A CN105466066 A CN 105466066A
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- heat exchanger
- hot water
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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
- F25B29/00—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously
- F25B29/003—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously of the compression type system
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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
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/003—Indoor unit with water as a heat sink or heat source
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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
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/027—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means
- F25B2313/02741—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means using one four-way valve
Abstract
The invention relates to a low-circumstance-temperature liquid spray type air source triple cogeneration unit. A gas outlet of a liquid spray scroll compressor is connected to a four-way reversing valve through an oil-gas separator and one flow path of a hot water side heat exchanger in sequence, and the other flow path of the hot water side heat exchanger is externally connected with a hot water pipe system with a hot water circulating pump. The four-way reversing valve is connected with a gas-liquid separator, a fin type heat exchanger and one flow path of an air conditioner side heat exchanger. The gas-liquid separator is connected with a liquid return opening of the liquid spray scroll compressor in a gas return manner. A heat exchange fan is arranged corresponding to the fin type heat exchanger. The fin type heat exchanger passes through a thermostatic expansion valve and a dry filter and then is connected to one flow path of the air conditioner side heat exchanger and a liquid spray electromagnetic valve. The liquid spray electromagnetic valve is connected with a gas return opening in the middle of the liquid spray scroll compressor through a liquid spray electronic expansion valve. The other flow path of the air conditioner side heat exchanger is externally connected with an air conditioner water pipe system with an air conditioner water circulating pump. The low-circumstance-temperature liquid spray type air source triple cogeneration unit is compact in structure, and the requirements for multiple functions of cold supply, heat supply and domestic hot water supply can be met.
Description
Technical field
The present invention relates to a kind of air-conditioner set, is a kind of low ring temperature liquid-spraying type air-source trilogy supply unit allocation method specifically.
Background technology
Along with becoming increasingly conspicuous with people to the reinforcement of haze recognizing dangers of environmental problem, the north also starts with the pattern of coal-burning boiler central heating the transformation that policy occurs, northern area starts to attempt adopting other energy mode to replace coal-burning boiler and solves north of china in winter heating problem, starts to occur that the modes such as natural gas boiler central heating, Heating by Ground Source Heat Pump replace fire coal and realize central heating.Natural gas, as primary energy, also there will be pollution problem to a certain degree in combustion process, adopt natural gas replacement coal-fired, also can cause the wretched insufficiency of natural gas total amount, cause the continuous rise of Gas Prices if north heating is complete.For now, adopt natural gas to replace coal heating, whole service cost has improved a lot.Adopt Heating by Ground Source Heat Pump, exploit underground heat in a large number, geologic structure balance can be broken, except may producing frozen soil layer and affecting earth source heat pump and can not normally run, irreversible impact may be produced on the destruction of geology.
Air source heat pump technology has the history of many decades as a kind of novel energy-saving environment-friendly technology, development speed is comparatively slow, due to factors such as climatic characteristic, energy resource structure, consumption habit and policy environments, be not formed with the external condition being beneficial to heat pump development for a long time, the restriction of certainly early stage heat pump techniques performance is also an important internal factor.Jointly advance the situation of low-carbon economy in countries in the world under, the awareness of the public to heat pump improves constantly, and policy environment is improved day by day, while external condition obtains large development, heat pump techniques performance and economy are optimized comprehensively, and the market competitiveness obtains larger raising.
Air source heat pump is using air as thermal source, be mainly used in the area on the south the Yellow River, along with the reduction of environment temperature, significantly decaying also appears in air source heat pump efficiency, after environment temperature is lower than-10 DEG C, traditional air source heat pump is difficult to meet heating needs, result in the northerly use of air source heat pump product and receives large restriction.Clean and effective energy-saving heating scheme is badly in need of in the north on the one hand, and spendable net for air-source heat pump units is restricted in district lower in environment temperature on the other hand.In addition, a series of policy has also successively been put into effect in the areas such as Beijing, Shandong, Hebei, adopting air source heat pump to realize heat supply has policy to reward, and in this case, under research and development low ambient temperature, air source heat pump product has larger market and important energy-saving significance.
Summary of the invention
For the deficiency existed in air-source air-conditioner set in prior art, the invention provides a kind of compact conformation, the low ring temperature liquid-spraying type air-source trilogy supply unit allocation method of various cooling, heating, the multi-functional requirement of domestic hot-water supply can be met.
Technical scheme of the present invention is: a kind of low ring temperature liquid-spraying type air-source trilogy supply unit allocation method, and described unit comprises hydrojet screw compressor, gs-oil separator, gas-liquid separator, finned heat exchanger, heat exchange blower fan, heating power expansion valve, device for drying and filtering and domestic hot water side heat exchanger, is characterized in that: also comprise hot water side heat exchanger, hot water circulating pump, four-way change-over valve, hydrojet magnetic valve and hydrojet electric expansion valve, hydrojet screw compressor gas outlet is successively through gs-oil separator, hot water side heat exchanger one flow process is connected to four-way change-over valve, the hot water piping of the outer tape splicing hot water circulating pump of another flow process of hot water side heat exchanger, and described four-way change-over valve also connects gas-liquid separator, finned heat exchanger and domestic hot water side heat exchanger one flow process, gas-liquid separator return-air connects hydrojet screw compressor liquid return hole, and the corresponding finned heat exchanger of heat exchange blower fan is arranged, and finned heat exchanger is through heating power expansion valve, connect domestic hot water side heat exchanger one flow process and hydrojet magnetic valve after device for drying and filtering respectively, hydrojet magnetic valve connects gas returning port in the middle of hydrojet screw compressor through hydrojet electric expansion valve, the air conditioner water piping of the outer tape splicing air conditioner water circulating pump of another flow process of domestic hot water side heat exchanger, control comprises following pattern:
(1), separate refrigeration pattern:
Hydrojet screw compressor energising work, high pressure gaseous R410A cold-producing medium is sprayed from hydrojet screw compressor gas outlet, gaseous refrigerant is by after gs-oil separator, compressor liquid-spraying screw compressor liquid return hole is got back to by oil return capillary by the Partial shrinkage machine lubricating oil that compressor air-discharging is taken out of, high temperature and high pressure gaseous refrigerant is by entering hot water side heat exchanger after gs-oil separator, now, hot water circulating pump off-duty, hot water does not enter heat absorption in hot water side heat exchanger, high temperature and high pressure gaseous refrigerant goes out heat exchanger and enters four-way change-over valve, cold-producing medium enters four-way change-over valve second pipe from four-way change-over valve first pipe and goes out four-way change-over valve, cold-producing medium enters finned heat exchanger afterwards, under the effect of heat exchange blower fan, cold-producing medium starts a large amount of condensation, reject heat in air, cold-producing medium after condensation liquefaction is again by entering heating power expansion valve after current divider, now in high pressure warm cold-producing medium by becoming low-temp low-pressure liquid refrigerant after heating power expansion valve, low temperature liquid cold-producing medium is again by entering domestic hot water side heat exchanger after the dry filter of device for drying and filtering, cold-producing medium is started to evaporate and absorbs the heat entered by air conditioner water circulating pump in the water of heat exchanger in a large number in domestic hot water side heat exchanger, produce cryogenic freezing water to be recycled to end indoor and to be used for room temperature lowering, after cold-producing medium absorbs heat in domestic hot water side heat exchanger, gasification becomes the 4th pipe that low temperature low pressure gas enters four-way change-over valve, go out four-way change-over valve from four-way change-over valve the 3rd pipe again and enter gas-liquid separator, the cold-producing medium be not gasified totally is stayed in the separator by gas-liquid separator separates, gaseous refrigerant under the effect of compressor return air mouth low-pressure by liquid return hole to hydrojet screw compressor, cold-producing medium completes a kind of refrigeration cycle, realize the process of heat absorption and release, in this process, cold-producing medium absorbs heat from domestic hot water side heat exchanger, produce chilled water and realize the indoor refrigeration of end, cold-producing medium heat is discharged into outdoor by heat exchange blower fan,
(2), refrigeration domestic hot-water supply pattern simultaneously:
Hydrojet screw compressor energising work, high pressure gaseous R410A cold-producing medium is sprayed from hydrojet screw compressor gas outlet, gaseous refrigerant is by after gs-oil separator, hydrojet screw compressor gas returning port is got back to by oil return capillary by the Partial shrinkage machine lubricating oil that compressor air-discharging is taken out of, high temperature and high pressure gaseous refrigerant is by entering hot water side heat exchanger after gs-oil separator, now, entered the heat of the water absorption high temperature and high pressure gaseous refrigerant of hot water side heat exchanger by hot water circulating pump after, temperature raises, hot water side heat exchanger is flowed out as domestic hot-water, the high temperature and high pressure gaseous refrigerant entering hot water side heat exchanger by thermal release to the water rear section condensation liquefaction flowing through heat exchanger, now, the high-pressure refrigerant of gas-liquid mixture phase enters four-way change-over valve, four-way change-over valve is not energized, cold-producing medium flows into from four-way change-over valve first and enters finned heat exchanger from second mouthful of outflow, under the effect of heat exchange blower fan, gas-liquid mixed refrigerant is abundant condensation release heat in finned heat exchanger, by heat dissipation in air, cold-producing medium after condensation liquefaction is again by entering heating power expansion valve after current divider, now in high pressure warm cold-producing medium by becoming low-temp low-pressure liquid refrigerant after heating power expansion valve, low temperature liquid cold-producing medium is again by entering domestic hot water side heat exchanger after the dry filter of device for drying and filtering, cold-producing medium is started to evaporate and absorbs the heat entered by air conditioner water circulating pump in the water of heat exchanger in a large number in domestic hot water side heat exchanger, produce cryogenic freezing water to be recycled to end indoor and to be used for room temperature lowering, after cold-producing medium absorbs heat in domestic hot water side heat exchanger, gasification becomes the 4th pipe that low temperature low pressure gas enters four-way change-over valve, go out four-way change-over valve from the 3rd pipe again and enter gas-liquid separator, the cold-producing medium be not gasified totally is stayed in the separator by gas-liquid separator separates, gaseous refrigerant gets back to hydrojet screw compressor by liquid return hole under the effect of compressor return air mouth low-pressure, cold-producing medium completes a kind of refrigeration cycle, realize the process of heat absorption and release, in this process, cold-producing medium absorbs heat from domestic hot water side heat exchanger, produce chilled water and realize the indoor refrigeration of end, cold-producing medium thermal release is in hot water side heat exchanger, be used for producing domestic hot-water, realize producing refrigeration cold water and produce domestic hot-water simultaneously,
(3), independent heating mode:
Hydrojet screw compressor energising work, high pressure gaseous R410A cold-producing medium is sprayed from hydrojet screw compressor gas outlet, gaseous refrigerant is by after gs-oil separator, be vented by hydrojet screw compressor the Partial shrinkage machine lubricating oil taken out of and get back to hydrojet screw compressor liquid return hole by oil return capillary, high temperature and high pressure gaseous refrigerant is by entering hot water side heat exchanger after gs-oil separator, now, hot water circuit air pump inoperative runs, water can not enter in hot water side heat exchanger and absorb heat, high temperature and high pressure gaseous refrigerant goes out directly to enter four-way change-over valve afterwards from hot water side heat exchanger, after four-way change-over valve energising, cold-producing medium flows into from four-way change-over valve first and enters domestic hot water side heat exchanger from the 4th mouthful of outflow, high temperature and high pressure gaseous refrigerant is condensation in heat exchanger, thermal release is given by the water of air conditioner water circulating pump flows by action through heat exchanger, enter as heating recirculated water the object that end system heat radiation realizes indoor heating after water is heated, middle temperature high pressure liquid refrigerant is become after cold-producing medium is fully condensed, afterwards by the dry filter of device for drying and filtering and the throttling of heating power expansion valve, cold-producing medium becomes low-temp low-pressure liquid state, finned heat exchanger is entered again afterwards by current divider, by the effect of heat exchange blower fan, liquid low temperature low pressure refrigerant starts a large amount of evaporation, simultaneously from by absorbing heat the air of heat exchanger, the second pipe that low-temp low-pressure gaseous refrigerant enters four-way change-over valve is become after cold-producing medium evaporation absorbs heat, go out four-way change-over valve from the 3rd pipe again and enter gas-liquid separator, the cold-producing medium be not gasified totally is stayed in the separator by gas-liquid separator separates, gaseous refrigerant gets back to hydrojet screw compressor by liquid return hole under the effect of compressor return air mouth low-pressure, in addition, in this mode, because of environment temperature lower cold-producing medium evaporation absorb heat less time, compressor liquid return hole insufficient pressure can be caused to cause compressor outlet temperature drift, in order to ensure unit stable operation under extremely cold temperature conditions, cold-producing medium can enter hydrojet electric expansion valve by the hydrojet magnetic valve opened at low ambient temperatures by there being the liquid refrigerant of a branch road after domestic hot water side heat exchanger, again by the open degree of the temperature computation electric expansion valve of hydrojet screw compressor gas outlet, promptly and accurately compressor exhaust temperature is regulated by controlling back compressor mouth spray liquid refrigerant flow, ensure system high efficiency stable operation, whole system completes and once heats circulation, realize the process of heat absorption and release, in this process, cold-producing medium absorbs heat from finned heat exchanger, by thermal release to domestic hot water side heat exchanger, produce heating circulating hot water, realize the object of heating separately,
(4), heating domestic hot-water supply pattern simultaneously:
Hydrojet screw compressor energising work, high pressure gaseous R410A cold-producing medium is sprayed from hydrojet screw compressor gas outlet, gaseous refrigerant is by after gs-oil separator, be vented by hydrojet screw compressor the Partial shrinkage machine lubricating oil taken out of and get back to compressor liquid return hole by oil return capillary, high temperature and high pressure gaseous refrigerant is by entering hot water side heat exchanger after gs-oil separator, now, entered the heat of the water absorption high temperature and high pressure gaseous refrigerant of hot water side heat exchanger by hot water circulating pump after, temperature raises, hot water side heat exchanger is flowed out as domestic hot-water, the high temperature and high pressure gaseous refrigerant entering hot water side heat exchanger by thermal release to the water rear section condensation liquefaction flowing through heat exchanger, now, the high-pressure refrigerant of gas-liquid mixture phase enters four-way change-over valve, after four-way change-over valve energising, cold-producing medium flows into from four-way change-over valve first and enters domestic hot water side heat exchanger from the 4th mouthful of outflow, cold-producing medium further condensation in heat exchanger of gas-liquid mixture phase, thermal release is given by the water of air conditioner water circulating pump flows by action through heat exchanger, enter as heating recirculated water the object that end system heat radiation realizes indoor heating after water is heated, middle temperature high pressure liquid refrigerant is become after cold-producing medium is fully condensed, afterwards by the dry filter of device for drying and filtering and the throttling of heating power expansion valve, cold-producing medium becomes low-temp low-pressure liquid state, finned heat exchanger is entered again afterwards by current divider, again by the effect of heat exchange blower fan, liquid low temperature low pressure refrigerant starts a large amount of evaporation, simultaneously from by absorbing heat the air of heat exchanger, the second pipe that low-temp low-pressure gaseous refrigerant enters four-way change-over valve is become after cold-producing medium evaporation absorbs heat, go out four-way change-over valve from the 3rd pipe again and enter gas-liquid separator, the cold-producing medium be not gasified totally is stayed in the separator by gas-liquid separator separates, gaseous refrigerant under the effect of compressor return air mouth low-pressure by liquid return hole to hydrojet screw compressor, in addition, in this mode, because of environment temperature lower cold-producing medium evaporation absorb heat less time, compressor liquid return hole insufficient pressure can be caused to cause compressor outlet temperature drift, in order to ensure unit stable operation under extremely cold temperature conditions, cold-producing medium can enter hydrojet electric expansion valve by the hydrojet magnetic valve opened at low ambient temperatures by there being the liquid refrigerant of a branch road after domestic hot water side heat exchanger, again by the open degree of the temperature computation electric expansion valve of hydrojet screw compressor gas outlet, promptly and accurately compressor exhaust temperature is regulated by controlling back compressor mouth spray liquid refrigerant flow, ensure system high efficiency stable operation, whole system completes and once heats circulation, realize the process of heat absorption and release, in this process, cold-producing medium absorbs heat from finned heat exchanger, by thermal release to hot water side heat exchanger and domestic hot water side heat exchanger, produce domestic hot-water and heating circulating hot water, realize the object of domestic hot-water supply while of heating,
(5), independent domestic hot-water supply pattern:
Hydrojet screw compressor energising work, high pressure gaseous R410A cold-producing medium is sprayed from hydrojet screw compressor gas outlet, gaseous refrigerant is by after gs-oil separator, compressor liquid return hole is got back to by oil return capillary by the Partial shrinkage machine lubricating oil that compressor air-discharging is taken out of, high temperature and high pressure gaseous refrigerant is by entering hot water side heat exchanger after gs-oil separator, now, entered the heat of the water absorption high temperature and high pressure gaseous refrigerant of hot water side heat exchanger by hot water circulating pump after, temperature raises, hot water side heat exchanger is flowed out as domestic hot-water, the high temperature and high pressure gaseous refrigerant entering hot water side heat exchanger by thermal release to condensation liquefaction after the water flowing through heat exchanger, now, liquid high-pressure refrigerant enters four-way change-over valve, after four-way change-over valve energising, cold-producing medium flows into from four-way change-over valve first and enters domestic hot water side heat exchanger from the 4th mouthful of outflow, air conditioner water circulating pump not startup optimization, by the dry filter of device for drying and filtering and the throttling of heating power expansion valve after liquid refrigerant goes out from domestic hot water side heat exchanger, cold-producing medium becomes low-temp low-pressure liquid state, finned heat exchanger is entered again afterwards by current divider, again by the effect of heat exchange blower fan, liquid low temperature low pressure refrigerant starts a large amount of evaporation, simultaneously from by absorbing heat the air of heat exchanger, the second pipe that low-temp low-pressure gaseous refrigerant enters four-way change-over valve is become after cold-producing medium evaporation absorbs heat, go out four-way change-over valve from the 3rd pipe again and enter gas-liquid separator, the cold-producing medium be not gasified totally is stayed in the separator by gas-liquid separator separates, gaseous refrigerant gets back to hydrojet screw compressor by liquid return hole under the effect of compressor return air mouth low-pressure, in addition, in this mode, because of environment temperature lower cold-producing medium evaporation absorb heat less time, compressor liquid return hole insufficient pressure can be caused to cause hydrojet screw compressor air outlet temperature higher, in order to ensure unit stable operation under extremely cold temperature conditions, cold-producing medium can enter hydrojet electric expansion valve by the hydrojet magnetic valve opened at low ambient temperatures by there being the liquid refrigerant of a branch road after domestic hot water side heat exchanger, again by the open degree of the temperature computation electric expansion valve of hydrojet screw compressor gas outlet, promptly and accurately compressor exhaust temperature is regulated by controlling back compressor mouth spray liquid refrigerant flow, ensure system high efficiency stable operation, whole system completes and once heats circulation, realize the process of heat absorption and release, in this process, cold-producing medium absorbs heat from finned heat exchanger, by thermal release to hot water side heat exchanger, produce domestic hot-water, realize the object of domestic hot-water supply.
Further, the oil return capillary of described gs-oil separator connects hydrojet screw compressor liquid return hole.
Further, described finned heat exchanger connects heating power expansion valve through current divider.
Again further, described hydrojet screw compressor, hot water circulating pump, four-way change-over valve, air conditioner water circulating pump, heat exchange blower fan, hydrojet magnetic valve connection control device.
After adopting technique scheme, the beneficial effect reached is:
1, a tractor serves several purposes, can realize the demand of cooling, heating, domestic hot-water supply, reduces input cost and the floor space of multiple devices;
2, " independent cooling ", " cooling+domestic hot-water supply ", " heat separately ", " heating+domestic hot-water supply ", " independent domestic hot-water supply " five kinds of patterns are available,
2, using air as Cooling and Heat Source, environment is installed and used restricted less;
3, refrigeration condensing units heat production water simultaneously, institute's heat production water is free, also improves refrigerating efficiency simultaneously;
4, only adopt electrical energy drive, without the need to burning, without the generation of any useless smoke waste gas, can not pollute environment.
5, efficiently can heat by environment more than-25 DEG C;
6, novel energy-saving environment-friendly cold-producing medium R410a is adopted, non ozone depleting.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure, hydrojet screw compressor 1, gs-oil separator 2, oil return capillary 3, hot water side heat exchanger 4, hot water circulating pump 5, four-way change-over valve 6, domestic hot water side heat exchanger 7, air conditioner water circulating pump 8, device for drying and filtering 9, heating power expansion valve 10, current divider 11, heat exchange blower fan 12, finned heat exchanger 13, gas-liquid separator 14, hydrojet magnetic valve 15, hydrojet electric expansion valve 16.
Detailed description of the invention
Be described further below in conjunction with drawings and Examples.
Shown in Fig. 1: a kind of low ring temperature liquid-spraying type air-source trilogy supply unit comprises hydrojet screw compressor 1, gs-oil separator 2, oil return capillary 3, hot water side heat exchanger 4, hot water circulating pump 5, four-way change-over valve 6, domestic hot water side heat exchanger 7, air conditioner water circulating pump 8, device for drying and filtering 9, heating power expansion valve 10, current divider 11, heat exchange blower fan 12, finned heat exchanger 13, gas-liquid separator 14, hydrojet magnetic valve 15, hydrojet electric expansion valve 16.Hydrojet screw compressor 1 gas outlet is successively through gs-oil separator 2, hot water side heat exchanger 4 one flow process is connected to four-way change-over valve 6 first and manages, the hot water piping of the outer tape splicing hot water circulating pump 5 of another flow process of hot water side heat exchanger 4, second of four-way change-over valve, three, four pipes connect finned heat exchanger 13 respectively, gas-liquid separator 14 and domestic hot water side heat exchanger 7 one flow process, gas-liquid separator 14 return-air connects hydrojet screw compressor 1 liquid return hole, the corresponding finned heat exchanger 13 of heat exchange blower fan 12 is arranged, finned heat exchanger 13 is through heating power expansion valve 10, domestic hot water side heat exchanger 7 one flow process and hydrojet magnetic valve 15 is connected respectively after device for drying and filtering 9, hydrojet magnetic valve 15 connects the middle gas returning port of hydrojet screw compressor 1 through hydrojet electric expansion valve 16, the air conditioner water piping of the outer tape splicing air conditioner water circulating pump 8 of another flow process of domestic hot water side heat exchanger 7, the oil return capillary 3 of gs-oil separator 2 connects hydrojet screw compressor 1 liquid return hole, finned heat exchanger 13 connects heating power expansion valve 10 through current divider 11.
The course of work of this unit is: five kinds of operational modes, can realize throughout the year to different demands that are cold, warm, hot water.
1, separate refrigeration pattern
Hydrojet screw compressor energising work, high pressure gaseous R410A cold-producing medium is sprayed from hydrojet screw compressor gas outlet, gaseous refrigerant, by after gs-oil separator, is got back to compressor liquid-spraying screw compressor liquid return hole by the Partial shrinkage machine lubricating oil that compressor air-discharging is taken out of by oil return capillary.High temperature and high pressure gaseous refrigerant is by entering hot water side heat exchanger after gs-oil separator, now, hot water circulating pump off-duty, hot water does not enter heat absorption in hot water side heat exchanger, and high temperature and high pressure gaseous refrigerant goes out heat exchanger and enters four-way change-over valve, and cold-producing medium enters four-way change-over valve second pipe from four-way change-over valve first pipe and goes out four-way change-over valve, cold-producing medium enters finned heat exchanger afterwards, under the effect of heat exchange blower fan, cold-producing medium starts a large amount of condensation, rejects heat in air.Cold-producing medium after condensation liquefaction is again by entering heating power expansion valve after current divider.Now in high pressure warm cold-producing medium by becoming low-temp low-pressure liquid refrigerant after heating power expansion valve.Low temperature liquid cold-producing medium is again by entering domestic hot water side heat exchanger after the dry filter of device for drying and filtering, cold-producing medium is started to evaporate and absorbs the heat entered by air conditioner water circulating pump in the water of heat exchanger in a large number in domestic hot water side heat exchanger, and generation cryogenic freezing water is recycled to end indoor and is used for room temperature lowering.After cold-producing medium absorbs heat in domestic hot water side heat exchanger, gasification becomes the 4th pipe that low temperature low pressure gas enters four-way change-over valve, go out four-way change-over valve from four-way change-over valve the 3rd pipe again and enter gas-liquid separator, the cold-producing medium be not gasified totally is stayed in the separator by gas-liquid separator separates, gaseous refrigerant under the effect of compressor return air mouth low-pressure by liquid return hole to hydrojet screw compressor.Cold-producing medium completes a kind of refrigeration cycle, realizes the process of heat absorption and release, and in this process, cold-producing medium absorbs heat from domestic hot water side heat exchanger, and produce chilled water and realize the indoor refrigeration of end, cold-producing medium heat is discharged into outdoor by heat exchange blower fan.
2, refrigeration domestic hot-water supply pattern simultaneously
Hydrojet screw compressor energising work, high pressure gaseous R410A cold-producing medium is sprayed from hydrojet screw compressor gas outlet, gaseous refrigerant, by after gs-oil separator, is got back to hydrojet screw compressor gas returning port by the Partial shrinkage machine lubricating oil that compressor air-discharging is taken out of by oil return capillary.High temperature and high pressure gaseous refrigerant is by entering hot water side heat exchanger after gs-oil separator, now, entered the heat of the water absorption high temperature and high pressure gaseous refrigerant of hot water side heat exchanger by hot water circulating pump after, temperature raises, flow out hot water side heat exchanger as domestic hot-water, the high temperature and high pressure gaseous refrigerant entering hot water side heat exchanger by thermal release to the water rear section condensation liquefaction flowing through heat exchanger.Now, the high-pressure refrigerant of gas-liquid mixture phase enters four-way change-over valve, four-way change-over valve is not energized, cold-producing medium flows into from four-way change-over valve first and enters finned heat exchanger from second mouthful of outflow, under the effect of heat exchange blower fan, gas-liquid mixed refrigerant is abundant condensation release heat in finned heat exchanger, by heat dissipation in air.Cold-producing medium after condensation liquefaction is again by entering heating power expansion valve after current divider.Now in high pressure warm cold-producing medium by becoming low-temp low-pressure liquid refrigerant after heating power expansion valve.Low temperature liquid cold-producing medium is again by entering domestic hot water side heat exchanger after the dry filter of device for drying and filtering, cold-producing medium is started to evaporate and absorbs the heat entered by air conditioner water circulating pump in the water of heat exchanger in a large number in domestic hot water side heat exchanger, and generation cryogenic freezing water is recycled to end indoor and is used for room temperature lowering.After cold-producing medium absorbs heat in domestic hot water side heat exchanger, gasification becomes the 4th pipe that low temperature low pressure gas enters four-way change-over valve, go out four-way change-over valve from the 3rd pipe again and enter gas-liquid separator, the cold-producing medium be not gasified totally is stayed in the separator by gas-liquid separator separates, and gaseous refrigerant gets back to hydrojet screw compressor by liquid return hole under the effect of compressor return air mouth low-pressure.Cold-producing medium completes a kind of refrigeration cycle, realize the process of heat absorption and release, in this process, cold-producing medium absorbs heat from domestic hot water side heat exchanger, produce chilled water and realize the indoor refrigeration of end, cold-producing medium thermal release, in hot water side heat exchanger, is used for producing domestic hot-water, realizes producing refrigeration cold water and produces domestic hot-water simultaneously.
3, independent heating mode
Hydrojet screw compressor energising work, high pressure gaseous R410A cold-producing medium is sprayed from hydrojet screw compressor gas outlet, gaseous refrigerant, by after gs-oil separator, is vented by hydrojet screw compressor the Partial shrinkage machine lubricating oil taken out of and gets back to hydrojet screw compressor liquid return hole by oil return capillary.High temperature and high pressure gaseous refrigerant is by entering hot water side heat exchanger after gs-oil separator, now, hot water circuit air pump inoperative runs, water can not enter in hot water side heat exchanger and absorb heat, high temperature and high pressure gaseous refrigerant goes out directly to enter four-way change-over valve afterwards from hot water side heat exchanger, after four-way change-over valve energising, cold-producing medium flows into from four-way change-over valve first and enters domestic hot water side heat exchanger from the 4th mouthful of outflow, high temperature and high pressure gaseous refrigerant is condensation in heat exchanger, thermal release is given by the water of air conditioner water circulating pump flows by action through heat exchanger, enter as heating recirculated water the object that end system heat radiation realizes indoor heating after water is heated.Middle temperature high pressure liquid refrigerant is become after cold-producing medium is fully condensed, afterwards by the dry filter of device for drying and filtering and the throttling of heating power expansion valve, cold-producing medium becomes low-temp low-pressure liquid state, finned heat exchanger is entered again afterwards by current divider, by the effect of heat exchange blower fan, liquid low temperature low pressure refrigerant starts a large amount of evaporation, simultaneously from by absorbing heat the air of heat exchanger.The second pipe that low-temp low-pressure gaseous refrigerant enters four-way change-over valve is become after cold-producing medium evaporation absorbs heat, go out four-way change-over valve from the 3rd pipe again and enter gas-liquid separator, the cold-producing medium be not gasified totally is stayed in the separator by gas-liquid separator separates, and gaseous refrigerant gets back to hydrojet screw compressor by liquid return hole under the effect of compressor return air mouth low-pressure.In addition, in this mode, because of environment temperature lower cold-producing medium evaporation absorb heat less time, compressor liquid return hole insufficient pressure can be caused to cause compressor outlet temperature drift, in order to ensure unit stable operation under extremely cold temperature conditions, cold-producing medium can enter hydrojet electric expansion valve by the hydrojet magnetic valve opened at low ambient temperatures by there being the liquid refrigerant of a branch road after domestic hot water side heat exchanger, again by the open degree of the temperature computation electric expansion valve of hydrojet screw compressor gas outlet, promptly and accurately compressor exhaust temperature is regulated by controlling back compressor mouth spray liquid refrigerant flow, ensure system high efficiency stable operation.Whole system completes and once heats circulation, realizes the process of heat absorption and release, and in this process, cold-producing medium absorbs heat from finned heat exchanger, by thermal release to domestic hot water side heat exchanger, produces heating circulating hot water, realizes the object of heating separately.
4, heating domestic hot-water supply pattern simultaneously
Hydrojet screw compressor energising work, high pressure gaseous R410A cold-producing medium is sprayed from hydrojet screw compressor gas outlet, gaseous refrigerant, by after gs-oil separator, is vented by hydrojet screw compressor the Partial shrinkage machine lubricating oil taken out of and gets back to compressor liquid return hole by oil return capillary.High temperature and high pressure gaseous refrigerant is by entering hot water side heat exchanger after gs-oil separator, now, entered the heat of the water absorption high temperature and high pressure gaseous refrigerant of hot water side heat exchanger by hot water circulating pump after, temperature raises, flow out hot water side heat exchanger as domestic hot-water, the high temperature and high pressure gaseous refrigerant entering hot water side heat exchanger by thermal release to the water rear section condensation liquefaction flowing through heat exchanger.Now, the high-pressure refrigerant of gas-liquid mixture phase enters four-way change-over valve, after four-way change-over valve energising, cold-producing medium flows into from four-way change-over valve first and enters domestic hot water side heat exchanger from the 4th mouthful of outflow, cold-producing medium further condensation in heat exchanger of gas-liquid mixture phase, thermal release is given by the water of air conditioner water circulating pump flows by action through heat exchanger, after water is heated, enters as heating recirculated water the object that end system heat radiation realizes indoor heating.Middle temperature high pressure liquid refrigerant is become after cold-producing medium is fully condensed, afterwards by the dry filter of device for drying and filtering and the throttling of heating power expansion valve, cold-producing medium becomes low-temp low-pressure liquid state, finned heat exchanger is entered again afterwards by current divider, again by the effect of heat exchange blower fan, liquid low temperature low pressure refrigerant starts a large amount of evaporation, simultaneously from by absorbing heat the air of heat exchanger.The second pipe that low-temp low-pressure gaseous refrigerant enters four-way change-over valve is become after cold-producing medium evaporation absorbs heat, go out four-way change-over valve from the 3rd pipe again and enter gas-liquid separator, the cold-producing medium be not gasified totally is stayed in the separator by gas-liquid separator separates, gaseous refrigerant under the effect of compressor return air mouth low-pressure by liquid return hole to hydrojet screw compressor.In addition, in this mode, because of environment temperature lower cold-producing medium evaporation absorb heat less time, compressor liquid return hole insufficient pressure can be caused to cause compressor outlet temperature drift, in order to ensure unit stable operation under extremely cold temperature conditions, cold-producing medium can enter hydrojet electric expansion valve by the hydrojet magnetic valve opened at low ambient temperatures by there being the liquid refrigerant of a branch road after domestic hot water side heat exchanger, again by the open degree of the temperature computation electric expansion valve of hydrojet screw compressor gas outlet, promptly and accurately compressor exhaust temperature is regulated by controlling back compressor mouth spray liquid refrigerant flow, ensure system high efficiency stable operation.Whole system completes and once heats circulation, realize the process of heat absorption and release, in this process, cold-producing medium absorbs heat from finned heat exchanger, by thermal release to hot water side heat exchanger and domestic hot water side heat exchanger, produce domestic hot-water and heating circulating hot water, realize the object of domestic hot-water supply while of heating.
5, independent domestic hot-water supply pattern
Hydrojet screw compressor energising work, high pressure gaseous R410A cold-producing medium is sprayed from hydrojet screw compressor gas outlet, gaseous refrigerant, by after gs-oil separator, is got back to compressor liquid return hole by the Partial shrinkage machine lubricating oil that compressor air-discharging is taken out of by oil return capillary.High temperature and high pressure gaseous refrigerant is by entering hot water side heat exchanger after gs-oil separator, now, entered the heat of the water absorption high temperature and high pressure gaseous refrigerant of hot water side heat exchanger by hot water circulating pump after, temperature raises, flow out hot water side heat exchanger as domestic hot-water, the high temperature and high pressure gaseous refrigerant entering hot water side heat exchanger by thermal release to condensation liquefaction after the water flowing through heat exchanger.Now, liquid high-pressure refrigerant enters four-way change-over valve, after four-way change-over valve energising, cold-producing medium flows into from four-way change-over valve first and enters domestic hot water side heat exchanger from the 4th mouthful of outflow, air conditioner water circulating pump not startup optimization, by the dry filter of device for drying and filtering and the throttling of heating power expansion valve after liquid refrigerant goes out from domestic hot water side heat exchanger, cold-producing medium becomes low-temp low-pressure liquid state, finned heat exchanger is entered again afterwards by current divider, again by the effect of heat exchange blower fan, liquid low temperature low pressure refrigerant starts a large amount of evaporation, simultaneously from by absorbing heat the air of heat exchanger.The second pipe that low-temp low-pressure gaseous refrigerant enters four-way change-over valve is become after cold-producing medium evaporation absorbs heat, go out four-way change-over valve from the 3rd pipe again and enter gas-liquid separator, the cold-producing medium be not gasified totally is stayed in the separator by gas-liquid separator separates, and gaseous refrigerant gets back to hydrojet screw compressor by liquid return hole under the effect of compressor return air mouth low-pressure.In addition, in this mode, because of environment temperature lower cold-producing medium evaporation absorb heat less time, compressor liquid return hole insufficient pressure can be caused to cause hydrojet screw compressor air outlet temperature higher, in order to ensure unit stable operation under extremely cold temperature conditions, cold-producing medium can enter hydrojet electric expansion valve by the hydrojet magnetic valve opened at low ambient temperatures by there being the liquid refrigerant of a branch road after domestic hot water side heat exchanger, again by the open degree of the temperature computation electric expansion valve of hydrojet screw compressor gas outlet, promptly and accurately compressor exhaust temperature is regulated by controlling back compressor mouth spray liquid refrigerant flow, ensure system high efficiency stable operation.Whole system completes and once heats circulation, realizes the process of heat absorption and release, and in this process, cold-producing medium absorbs heat from finned heat exchanger, by thermal release to hot water side heat exchanger, produces domestic hot-water, realizes the object of domestic hot-water supply.
Claims (4)
1. a low ring temperature liquid-spraying type air-source trilogy supply unit allocation method, is characterized in that: described unit comprises hydrojet screw compressor, gs-oil separator, gas-liquid separator, finned heat exchanger, heat exchange blower fan, heating power expansion valve, device for drying and filtering and domestic hot water side heat exchanger, is characterized in that: also comprise hot water side heat exchanger, hot water circulating pump, four-way change-over valve, hydrojet magnetic valve and hydrojet electric expansion valve, hydrojet screw compressor gas outlet is successively through gs-oil separator, hot water side heat exchanger one flow process is connected to four-way change-over valve, the hot water piping of the outer tape splicing hot water circulating pump of another flow process of hot water side heat exchanger, and described four-way change-over valve also connects gas-liquid separator, finned heat exchanger and domestic hot water side heat exchanger one flow process, gas-liquid separator return-air connects hydrojet screw compressor liquid return hole, and the corresponding finned heat exchanger of heat exchange blower fan is arranged, and finned heat exchanger is through heating power expansion valve, connect domestic hot water side heat exchanger one flow process and hydrojet magnetic valve after device for drying and filtering respectively, hydrojet magnetic valve connects gas returning port in the middle of hydrojet screw compressor through hydrojet electric expansion valve, the air conditioner water piping of the outer tape splicing air conditioner water circulating pump of another flow process of domestic hot water side heat exchanger, control comprises following pattern:
(1), separate refrigeration pattern:
Hydrojet screw compressor energising work, high pressure gaseous R410A cold-producing medium is sprayed from hydrojet screw compressor gas outlet, gaseous refrigerant is by after gs-oil separator, compressor liquid-spraying screw compressor liquid return hole is got back to by oil return capillary by the Partial shrinkage machine lubricating oil that compressor air-discharging is taken out of, high temperature and high pressure gaseous refrigerant is by entering hot water side heat exchanger after gs-oil separator, now, hot water circulating pump off-duty, hot water does not enter heat absorption in hot water side heat exchanger, high temperature and high pressure gaseous refrigerant goes out heat exchanger and enters four-way change-over valve, cold-producing medium enters four-way change-over valve second pipe from four-way change-over valve first pipe and goes out four-way change-over valve, cold-producing medium enters finned heat exchanger afterwards, under the effect of heat exchange blower fan, cold-producing medium starts a large amount of condensation, reject heat in air, cold-producing medium after condensation liquefaction is again by entering heating power expansion valve after current divider, now in high pressure warm cold-producing medium by becoming low-temp low-pressure liquid refrigerant after heating power expansion valve, low temperature liquid cold-producing medium is again by entering domestic hot water side heat exchanger after the dry filter of device for drying and filtering, cold-producing medium is started to evaporate and absorbs the heat entered by air conditioner water circulating pump in the water of heat exchanger in a large number in domestic hot water side heat exchanger, produce cryogenic freezing water to be recycled to end indoor and to be used for room temperature lowering, after cold-producing medium absorbs heat in domestic hot water side heat exchanger, gasification becomes the 4th pipe that low temperature low pressure gas enters four-way change-over valve, go out four-way change-over valve from four-way change-over valve the 3rd pipe again and enter gas-liquid separator, the cold-producing medium be not gasified totally is stayed in the separator by gas-liquid separator separates, gaseous refrigerant under the effect of compressor return air mouth low-pressure by liquid return hole to hydrojet screw compressor, cold-producing medium completes a kind of refrigeration cycle, realize the process of heat absorption and release, in this process, cold-producing medium absorbs heat from domestic hot water side heat exchanger, produce chilled water and realize the indoor refrigeration of end, cold-producing medium heat is discharged into outdoor by heat exchange blower fan,
(2), refrigeration domestic hot-water supply pattern simultaneously:
Hydrojet screw compressor energising work, high pressure gaseous R410A cold-producing medium is sprayed from hydrojet screw compressor gas outlet, gaseous refrigerant is by after gs-oil separator, hydrojet screw compressor gas returning port is got back to by oil return capillary by the Partial shrinkage machine lubricating oil that compressor air-discharging is taken out of, high temperature and high pressure gaseous refrigerant is by entering hot water side heat exchanger after gs-oil separator, now, entered the heat of the water absorption high temperature and high pressure gaseous refrigerant of hot water side heat exchanger by hot water circulating pump after, temperature raises, hot water side heat exchanger is flowed out as domestic hot-water, the high temperature and high pressure gaseous refrigerant entering hot water side heat exchanger by thermal release to the water rear section condensation liquefaction flowing through heat exchanger, now, the high-pressure refrigerant of gas-liquid mixture phase enters four-way change-over valve, four-way change-over valve is not energized, cold-producing medium flows into from four-way change-over valve first and enters finned heat exchanger from second mouthful of outflow, under the effect of heat exchange blower fan, gas-liquid mixed refrigerant is abundant condensation release heat in finned heat exchanger, by heat dissipation in air, cold-producing medium after condensation liquefaction is again by entering heating power expansion valve after current divider, now in high pressure warm cold-producing medium by becoming low-temp low-pressure liquid refrigerant after heating power expansion valve, low temperature liquid cold-producing medium is again by entering domestic hot water side heat exchanger after the dry filter of device for drying and filtering, cold-producing medium is started to evaporate and absorbs the heat entered by air conditioner water circulating pump in the water of heat exchanger in a large number in domestic hot water side heat exchanger, produce cryogenic freezing water to be recycled to end indoor and to be used for room temperature lowering, after cold-producing medium absorbs heat in domestic hot water side heat exchanger, gasification becomes the 4th pipe that low temperature low pressure gas enters four-way change-over valve, go out four-way change-over valve from the 3rd pipe again and enter gas-liquid separator, the cold-producing medium be not gasified totally is stayed in the separator by gas-liquid separator separates, gaseous refrigerant gets back to hydrojet screw compressor by liquid return hole under the effect of compressor return air mouth low-pressure, cold-producing medium completes a kind of refrigeration cycle, realize the process of heat absorption and release, in this process, cold-producing medium absorbs heat from domestic hot water side heat exchanger, produce chilled water and realize the indoor refrigeration of end, cold-producing medium thermal release is in hot water side heat exchanger, be used for producing domestic hot-water, realize producing refrigeration cold water and produce domestic hot-water simultaneously,
(3), independent heating mode:
Hydrojet screw compressor energising work, high pressure gaseous R410A cold-producing medium is sprayed from hydrojet screw compressor gas outlet, gaseous refrigerant is by after gs-oil separator, be vented by hydrojet screw compressor the Partial shrinkage machine lubricating oil taken out of and get back to hydrojet screw compressor liquid return hole by oil return capillary, high temperature and high pressure gaseous refrigerant is by entering hot water side heat exchanger after gs-oil separator, now, hot water circuit air pump inoperative runs, water can not enter in hot water side heat exchanger and absorb heat, high temperature and high pressure gaseous refrigerant goes out directly to enter four-way change-over valve afterwards from hot water side heat exchanger, after four-way change-over valve energising, cold-producing medium flows into from four-way change-over valve first and enters domestic hot water side heat exchanger from the 4th mouthful of outflow, high temperature and high pressure gaseous refrigerant is condensation in heat exchanger, thermal release is given by the water of air conditioner water circulating pump flows by action through heat exchanger, enter as heating recirculated water the object that end system heat radiation realizes indoor heating after water is heated, middle temperature high pressure liquid refrigerant is become after cold-producing medium is fully condensed, afterwards by the dry filter of device for drying and filtering and the throttling of heating power expansion valve, cold-producing medium becomes low-temp low-pressure liquid state, finned heat exchanger is entered again afterwards by current divider, by the effect of heat exchange blower fan, liquid low temperature low pressure refrigerant starts a large amount of evaporation, simultaneously from by absorbing heat the air of heat exchanger, the second pipe that low-temp low-pressure gaseous refrigerant enters four-way change-over valve is become after cold-producing medium evaporation absorbs heat, go out four-way change-over valve from the 3rd pipe again and enter gas-liquid separator, the cold-producing medium be not gasified totally is stayed in the separator by gas-liquid separator separates, gaseous refrigerant gets back to hydrojet screw compressor by liquid return hole under the effect of compressor return air mouth low-pressure, in addition, in this mode, because of environment temperature lower cold-producing medium evaporation absorb heat less time, compressor liquid return hole insufficient pressure can be caused to cause compressor outlet temperature drift, in order to ensure unit stable operation under extremely cold temperature conditions, cold-producing medium can enter hydrojet electric expansion valve by the hydrojet magnetic valve opened at low ambient temperatures by there being the liquid refrigerant of a branch road after domestic hot water side heat exchanger, again by the open degree of the temperature computation electric expansion valve of hydrojet screw compressor gas outlet, promptly and accurately compressor exhaust temperature is regulated by controlling back compressor mouth spray liquid refrigerant flow, ensure system high efficiency stable operation, whole system completes and once heats circulation, realize the process of heat absorption and release, in this process, cold-producing medium absorbs heat from finned heat exchanger, by thermal release to domestic hot water side heat exchanger, produce heating circulating hot water, realize the object of heating separately,
(4), heating domestic hot-water supply pattern simultaneously:
Hydrojet screw compressor energising work, high pressure gaseous R410A cold-producing medium is sprayed from hydrojet screw compressor gas outlet, gaseous refrigerant is by after gs-oil separator, be vented by hydrojet screw compressor the Partial shrinkage machine lubricating oil taken out of and get back to compressor liquid return hole by oil return capillary, high temperature and high pressure gaseous refrigerant is by entering hot water side heat exchanger after gs-oil separator, now, entered the heat of the water absorption high temperature and high pressure gaseous refrigerant of hot water side heat exchanger by hot water circulating pump after, temperature raises, hot water side heat exchanger is flowed out as domestic hot-water, the high temperature and high pressure gaseous refrigerant entering hot water side heat exchanger by thermal release to the water rear section condensation liquefaction flowing through heat exchanger, now, the high-pressure refrigerant of gas-liquid mixture phase enters four-way change-over valve, after four-way change-over valve energising, cold-producing medium flows into from four-way change-over valve first and enters domestic hot water side heat exchanger from the 4th mouthful of outflow, cold-producing medium further condensation in heat exchanger of gas-liquid mixture phase, thermal release is given by the water of air conditioner water circulating pump flows by action through heat exchanger, enter as heating recirculated water the object that end system heat radiation realizes indoor heating after water is heated, middle temperature high pressure liquid refrigerant is become after cold-producing medium is fully condensed, afterwards by the dry filter of device for drying and filtering and the throttling of heating power expansion valve, cold-producing medium becomes low-temp low-pressure liquid state, finned heat exchanger is entered again afterwards by current divider, again by the effect of heat exchange blower fan, liquid low temperature low pressure refrigerant starts a large amount of evaporation, simultaneously from by absorbing heat the air of heat exchanger, the second pipe that low-temp low-pressure gaseous refrigerant enters four-way change-over valve is become after cold-producing medium evaporation absorbs heat, go out four-way change-over valve from the 3rd pipe again and enter gas-liquid separator, the cold-producing medium be not gasified totally is stayed in the separator by gas-liquid separator separates, gaseous refrigerant under the effect of compressor return air mouth low-pressure by liquid return hole to hydrojet screw compressor, in addition, in this mode, because of environment temperature lower cold-producing medium evaporation absorb heat less time, compressor liquid return hole insufficient pressure can be caused to cause compressor outlet temperature drift, in order to ensure unit stable operation under extremely cold temperature conditions, cold-producing medium can enter hydrojet electric expansion valve by the hydrojet magnetic valve opened at low ambient temperatures by there being the liquid refrigerant of a branch road after domestic hot water side heat exchanger, again by the open degree of the temperature computation electric expansion valve of hydrojet screw compressor gas outlet, promptly and accurately compressor exhaust temperature is regulated by controlling back compressor mouth spray liquid refrigerant flow, ensure system high efficiency stable operation, whole system completes and once heats circulation, realize the process of heat absorption and release, in this process, cold-producing medium absorbs heat from finned heat exchanger, by thermal release to hot water side heat exchanger and domestic hot water side heat exchanger, produce domestic hot-water and heating circulating hot water, realize the object of domestic hot-water supply while of heating,
(5), independent domestic hot-water supply pattern:
Hydrojet screw compressor energising work, high pressure gaseous R410A cold-producing medium is sprayed from hydrojet screw compressor gas outlet, gaseous refrigerant is by after gs-oil separator, compressor liquid return hole is got back to by oil return capillary by the Partial shrinkage machine lubricating oil that compressor air-discharging is taken out of, high temperature and high pressure gaseous refrigerant is by entering hot water side heat exchanger after gs-oil separator, now, entered the heat of the water absorption high temperature and high pressure gaseous refrigerant of hot water side heat exchanger by hot water circulating pump after, temperature raises, hot water side heat exchanger is flowed out as domestic hot-water, the high temperature and high pressure gaseous refrigerant entering hot water side heat exchanger by thermal release to condensation liquefaction after the water flowing through heat exchanger, now, liquid high-pressure refrigerant enters four-way change-over valve, after four-way change-over valve energising, cold-producing medium flows into from four-way change-over valve first and enters domestic hot water side heat exchanger from the 4th mouthful of outflow, air conditioner water circulating pump not startup optimization, by the dry filter of device for drying and filtering and the throttling of heating power expansion valve after liquid refrigerant goes out from domestic hot water side heat exchanger, cold-producing medium becomes low-temp low-pressure liquid state, finned heat exchanger is entered again afterwards by current divider, again by the effect of heat exchange blower fan, liquid low temperature low pressure refrigerant starts a large amount of evaporation, simultaneously from by absorbing heat the air of heat exchanger, the second pipe that low-temp low-pressure gaseous refrigerant enters four-way change-over valve is become after cold-producing medium evaporation absorbs heat, go out four-way change-over valve from the 3rd pipe again and enter gas-liquid separator, the cold-producing medium be not gasified totally is stayed in the separator by gas-liquid separator separates, gaseous refrigerant gets back to hydrojet screw compressor by liquid return hole under the effect of compressor return air mouth low-pressure, in addition, in this mode, because of environment temperature lower cold-producing medium evaporation absorb heat less time, compressor liquid return hole insufficient pressure can be caused to cause hydrojet screw compressor air outlet temperature higher, in order to ensure unit stable operation under extremely cold temperature conditions, cold-producing medium can enter hydrojet electric expansion valve by the hydrojet magnetic valve opened at low ambient temperatures by there being the liquid refrigerant of a branch road after domestic hot water side heat exchanger, again by the open degree of the temperature computation electric expansion valve of hydrojet screw compressor gas outlet, promptly and accurately compressor exhaust temperature is regulated by controlling back compressor mouth spray liquid refrigerant flow, ensure system high efficiency stable operation, whole system completes and once heats circulation, realize the process of heat absorption and release, in this process, cold-producing medium absorbs heat from finned heat exchanger, by thermal release to hot water side heat exchanger, produce domestic hot-water, realize the object of domestic hot-water supply.
2. one according to claim 1 low ring temperature liquid-spraying type air-source trilogy supply unit allocation method, is characterized in that: the oil return capillary of described gs-oil separator connects hydrojet screw compressor liquid return hole.
3. one according to claim 1 low ring temperature liquid-spraying type air-source trilogy supply unit allocation method, is characterized in that: described finned heat exchanger connects heating power expansion valve through current divider.
4. one according to claim 1 low ring temperature liquid-spraying type air-source trilogy supply unit allocation method, is characterized in that: described hydrojet screw compressor, hot water circulating pump, four-way change-over valve, air conditioner water circulating pump, heat exchange blower fan, hydrojet magnetic valve connection control device.
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| CN109682117A (en) * | 2018-12-27 | 2019-04-26 | 浙江理工大学 | A kind of energy-saving cities and towns people place magnetic suspension compressor multi-connected machine and hot-water combined supplying system |
| CN113175719A (en) * | 2021-05-25 | 2021-07-27 | 云南电网有限责任公司电力科学研究院 | Working medium direct contact type refrigerating system |
| CN113251700A (en) * | 2021-05-12 | 2021-08-13 | 成都绿建工程技术有限公司 | Frostless type heat pump oxygen-making air conditioning unit |
| CN113251699A (en) * | 2021-05-12 | 2021-08-13 | 成都绿建工程技术有限公司 | Heat recovery type heat pump oxygen-making air conditioning unit |
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