CN104990174A - Direct expansion type air-water cooled air conditioning system - Google Patents

Direct expansion type air-water cooled air conditioning system Download PDF

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Publication number
CN104990174A
CN104990174A CN201510441460.2A CN201510441460A CN104990174A CN 104990174 A CN104990174 A CN 104990174A CN 201510441460 A CN201510441460 A CN 201510441460A CN 104990174 A CN104990174 A CN 104990174A
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air
cold
heat exchanger
heat
hot
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CN104990174B (en
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荣国华
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/30—Arrangement or mounting of heat-exchangers
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/30—Expansion means; Dispositions thereof
    • F25B41/31—Expansion valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2221/00—Details or features not otherwise provided for
    • F24F2221/54—Heating and cooling, simultaneously or alternatively
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
  • Other Air-Conditioning Systems (AREA)

Abstract

The invention belongs to a multi-split air conditioning system; the system comprises an air conditioning cold-hot terminal system, an air conditioning cold terminal system, a cold-hot exhaust heat exchange system, a hot air heat exchange system, a cold-hot drainage heat exchange system, a hot water heat exchange system, a living hot water heat exchanger, an air cooled heat exchanger and a cold-hot source heat exchanger; the set has two functions of air cooling and water cooling, and uses outdoor air and cold-hot water sources for dissipating heat or absorbing heat; the air conditioning cold-hot terminal system supplies cold in summer and supplies heat in winter; the air conditioning cold terminal system supplies cold all year round, and can supply mold when supplying heat in winter to satisfy the air conditioning demands of special rooms; the hot air heat exchange system provides living hot air all year round; the hot water heat exchange system and the living hot water heat exchanger provide living hot water all year round; and the cold-hot exhaust heat exchange system and the cold-hot drainage heat exchange system recycle the heat energy of all waste gases and waste water, so that the energy saving effect is prominent.

Description

Direct-expansion type wind water cooling air-conditioning system
Technical field
The invention belongs to air conditioner refrigerating field, be specifically related to the compression-type refrigerating system that air-conditioning cold hot blast and domestic hot-water are provided.
Background technology
Current straight-expansion type air conditioner system, or claim VRV system, adopt air-cooled unit more, absorb heat from air, or dispel the heat in air, utilize outdoor air and cold-producing medium to carry out heat exchange, this heat exchange method is lower than water-cooled efficiency.A lot of Cooling and Heat Source is often had, such as: source, ground, source of sewage, open water supply, solar energy etc., wherein contain huge energy, air-cooled unit cannot utilize around us.
When less, the every aspect of building depth that has exterior window is amassed little, its air-conditioning system normally summer cooling, heat supply in winter; When building depth and being larger, the heat dissipation that the room away from exterior window produces does not fall, and such room needs cooling the whole year, and needs cooling summer near the room of exterior window, and need heating winter, therefore same seat has occurred different air conditioning requirements in building in the winter time.Moreover, the calculator room equipment such as computer, communication heat dissipation capacity is comparatively large, and the whole year needs cooling.Current straight-expansion type air conditioner system is all same working condition system, or simultaneously cooling, or heat supply simultaneously, can not while heat supply, again can cooling, air-conditioning system can not meet can heat supply, again can the demand of cooling simultaneously, the unit of more than two can only be selected, add investment.
Summary of the invention
The object of the present invention is to provide one can summer cooling, again can simultaneously heat supply, cooling in the winter time, all-year-around cooling, provide the refrigeration system of domestic hot-water the whole year, this system not only utilizes air energy, can also utilize other cold and hot water source.
Solution of the present invention is: direct-expansion type wind water cooling air-conditioning system comprises air conditioning terminal system, additional end system, Cooling and Heat Source heat exchanger, air cooling heat exchanger, domestic hot-water's heat exchanger, compressor, expansion throttling device, change working device, servicing unit, refrigerant circulation pipe, cold-producing medium, and they are linked in sequence into multiple cycle refrigeration system.
Air conditioning terminal system comprises air conditioner cold-heat end system and air-conditioning cold end system, air conditioner cold-heat end system comprises air conditioner cold-heat end, expansion throttling device, servicing unit etc., each air conditioner cold-heat end is all with expansion throttling device, with one or more air conditioner cold-heat end in system, and parallel connection in systems in which; Air-conditioning cold end system comprises air-conditioning cold end, expansion throttling device, magnetic valve, servicing unit etc., and each air-conditioning cold end is all with expansion throttling device, and with one or more air-conditioning cold end in system, and parallel connection in systems in which.Air conditioner cold-heat end, air-conditioning cold end are room air conditioner, and air conditioner cold-heat end provides air-conditioning cold hot blast or cold and hot radiation, and air-conditioning cold end provides air-conditioning cold wind or cold emission.
Additional end system comprises air exhaust heat exchange system and draining heat-exchange system, air exhaust heat exchange system comprises cold and hot air exhaust heat exchange system, hot air heat exchange system, cold and hot air exhaust heat exchange system comprises cold and hot air exhaust heat exchange device, expansion throttling device, servicing unit etc., each cold and hot air exhaust heat exchange device is all with expansion throttling device, with one or more cold and hot air exhaust heat exchange device in system, and parallel connection in systems in which; Hot air heat exchange system comprises hot air heat exchanger, electric control valve, magnetic valve, servicing unit etc., each hot air heat exchanger is all with the electric control valve of adjusting refrigerant flow rate, with one or more hot air heat exchanger in system, and parallel connection in systems in which, to manage with gases at high pressure (low-pressure gas) with two in system, magnetic valve that low-pressure gas (gases at high pressure) pipe is connected; Draining heat-exchange system comprises cold and hot draining heat-exchange system, hot water heat-exchange system, cold and hot draining heat-exchange system comprises cold and hot draining heat exchanger, expansion throttling device, servicing unit etc., each cold and hot draining heat exchanger is all with expansion throttling device, with one or more cold and hot draining heat exchanger in system, and parallel connection in systems in which; Hot water heat-exchange system comprises hot water heat exchanger, electric control valve, magnetic valve, servicing unit etc., each hot water heat exchanger is all with the electric control valve of adjusting refrigerant flow rate, with one or more hot water heat exchanger in system, and parallel connection in systems in which, to manage with gases at high pressure (low-pressure gas) with two in system, magnetic valve that low-pressure gas (gases at high pressure) pipe is connected.
Cold and hot air exhaust heat exchange device for reclaiming the heat energy of indoor exhaust wind or waste gas, the air draft of such as toilet, the oil smoke etc. in kitchen, or to indoor exhaust wind or toxic emission condensation heat.Hot air heat exchanger is used for providing life hot blast, such as hand drier, dryer, hair-dryer etc.Cold and hot draining heat exchanger for reclaiming the heat energy of indoor drainage or waste water, such as toilet washes, bathroom bath wastewater etc., or to indoor drainage or discharge of wastewater condensation heat.Hot water heat exchanger is used for heating tap water, and provide domestic hot-water, such as it can make the water heater etc. of toilet.
Cold-producing medium exchanges with room air or waste gas heat in air conditioner cold-heat end, air-conditioning cold end, cold and hot air exhaust heat exchange device, hot air heat exchanger, with outdoor air heat exchange in air cooling heat exchanger, with the heat exchange of cold and hot water source in Cooling and Heat Source heat exchanger, cold and hot draining heat exchanger, with running water heat exchange in domestic hot-water's heat exchanger, hot water heat exchanger.Air conditioner cold-heat end is converted into condenser to air-conditioned room heat supply as evaporimeter to air-conditioned room cooling, winter summer; Air-conditioning cold end annual as evaporimeter to air-conditioned room cooling; Cold and hot air exhaust heat exchange device is as condenser to discharges heat in exhaust air with lower temperature or waste gas, and it also can be converted into evaporimeter and absorb heat from high temperature air draft or waste gas; Hot air heat exchanger, as condenser heating indoor air, provides life hot blast; Cooling and Heat Source heat exchanger, cold and hot draining heat exchanger as condenser to cold water source discharges heat, it also can be converted into evaporimeter and absorb heat from thermal water source, domestic hot-water's heat exchanger, hot water heat exchanger are annual as condenser heating tap water, domestic hot-water is provided, air cooling heat exchanger is as condenser to discharges heat in air, and it also can be converted into evaporimeter and absorb heat from air.
The connected mode of system is as follows: the refrigerant air inlet of domestic hot-water's heat exchanger is connected with the exhaust outlet of compressor, gas outlet is connected with the exhaust outlet of compressor of change working device (as: four-way change-over valve), the high temperature and high pressure gaseous refrigerant of system can all by domestic hot-water's heat exchanger, the demand for heat of preferential guarantee domestic hot-water, by regulating the flow of domestic hot-water, or establish bypass pipe, regulate the condensation heat quantity that cold-producing medium discharges in domestic hot-water's heat exchanger.Domestic hot-water's heat exchanger is by being connected with hot water supply system for return pipe, and heating tap water, provides domestic hot-water.
A cold-producing medium port of Cooling and Heat Source heat exchanger, air cooling heat exchanger is connected with expansion throttling device, during refrigeration, another port is connected with the condenser inlet of change working device, high-temperature high-pressure refrigerant from domestic hot-water's heat exchanger or compressor sequentially passes through from change working device, Cooling and Heat Source heat exchanger, air cooling heat exchanger, expansion throttling device, HTHP refrigeration discharges condensation heat in Cooling and Heat Source heat exchanger in cold water source, in air, condensation heat is discharged in air cooling heat exchanger, become high pressure liquid refrigerant, enter expansion throttling device; When heating, change working device commutates, high pressure liquid refrigerant is after the throttling of expansion throttling device, become low-temp low-pressure liquid refrigerant, enter into Cooling and Heat Source heat exchanger, air cooling heat exchanger evaporation endothermic, absorb the heat energy in thermal water source and air, become low temperature low pressure gas, then enter change working device.Cooling and Heat Source heat exchanger is by being connected with hot and cold water origin system for return pipe, and cold and hot water source comprises: source, ground, source of sewage, open water supply, solar water, technique waste water etc.Therefore, even if the end of air-conditioning system does not work, rely on air cooling heat exchanger to absorb heat from air evaporation, also can ensure that domestic hot-water's heat exchanger provides domestic hot-water the whole year.
High-temperature high-pressure refrigerant enters into Cooling and Heat Source heat exchanger, air cooling heat exchanger, expansion throttling device from the condenser inlet of change working device, then enters into high pressure (pressure) liquid line of system.Separate again a road from the condenser inlet of change working device to be connected with gases at high pressure (low-pressure gas) pipe of system, cooling system circulation time, this pipeline is high-pressure gas pipe, heats circulation time, and this pipeline is low-pressure gas pipe.The evaporator outlet of change working device is connected with low-pressure gas (gases at high pressure) pipe of system, cooling system circulation time, and this pipeline is low-pressure gas pipe, heats circulation time, and this pipeline is high-pressure gas pipe.The compressor inlet of change working device is connected with the import of gas-liquid separator, and the outlet of gas-liquid separator is connected with the air entry of compressor.
One end of air conditioner cold-heat end system is connected with high pressure (middle pressure) liquid line, and the other end is managed with low-pressure gas (gases at high pressure) and is connected.Cooling in summer circulation time, from high pressure (middle pressure) liquid refrigerant of high pressure (middle pressure) liquid line after the expansion throttling device throttling that each air conditioner cold-heat end carries, become low-temp low-pressure liquid refrigerant, enter air conditioner cold-heat end evaporation endothermic, to air-conditioned room cooling, become cryogenic gaseous cold-producing medium, then enter low-pressure gas (gases at high pressure) pipe; When winter heating's circulation time, change working device commutates, from the high-temperature high-pressure gas refrigerant of domestic hot-water's heat exchanger or compressor from the evaporator outlet of this change working device, enter into low-pressure gas (gases at high pressure) pipe, then air conditioner cold-heat end condensation heat release is entered into, for air-conditioned room heat supply, become high pressure (middle pressure) liquid refrigerant, then flow into high pressure (middle pressure) liquid line.
Air-conditioning cold end system has three cold-producing medium entrance ends, and wherein Single port is connected with high pressure (middle pressure) liquid line; The other end divides again that two ports are managed with gases at high pressure (low-pressure gas) respectively by magnetic valve, low-pressure gas (gases at high pressure) is managed and is connected.When cooling system circulation time, manage with low-pressure gas (gases at high pressure) magnetic valve be connected to open, with the closed electromagnetic valve of gases at high pressure (low-pressure gas) pipe, from high pressure (middle pressure) liquid refrigerant of high pressure (middle pressure) liquid pipe after the expansion throttling device throttling that each air-conditioning cold end carries, become low-temp low-pressure liquid refrigerant, enter air-conditioning cold end evaporation endothermic, to air-conditioned room cooling, become cryogenic gaseous cold-producing medium, then magnetic valve is passed through, low-pressure gas (gases at high pressure) is managed, the evaporator outlet of change working device, enter change working device, finally get back to compressor, when system heats circulation time, the closed electromagnetic valve be connected is managed with low-pressure gas (gases at high pressure), manage with gases at high pressure (low-pressure gas) magnetic valve be connected to open, change working device commutates, evaporator outlet is communicated with exhaust outlet of compressor, condenser inlet is communicated with compressor inlet, from the high-temperature high-pressure refrigerant of domestic hot-water's heat exchanger or compressor from the evaporator outlet of this change working device, managed by low-pressure gas (gases at high pressure), magnetic valve, enter into air conditioner cold-heat end or other tail end condenser condensation heat release, become high pressure (middle pressure) liquid refrigerant, a part enters into air-conditioning cold end system, after the expansion throttling device throttling that each air-conditioning cold end carries, become low-temp low-pressure liquid refrigerant, enter air-conditioning cold end evaporation endothermic, to air-conditioned room cooling, become cryogenic gaseous cold-producing medium, then by managing with gases at high pressure (low-pressure gas) magnetic valve be connected, the condenser inlet of change working device, enter change working device, finally get back to compressor, at transition season, air conditioner cold-heat end system does not work, as long as domestic hot-water's heat exchanger, Cooling and Heat Source heat exchanger, air cooling heat exchanger, additional end system works, also can ensure air-conditioning cold end cooling.
Cold and hot air exhaust heat exchange system has two cold-producing medium entrance ends, and wherein one end is connected with high pressure (middle pressure) liquid line, and another port is managed with gases at high pressure (low-pressure gas) and is connected.When cooling in summer circulation time, from the high-temperature high-pressure gas refrigerant of gases at high pressure (low-pressure gas) pipe, enter into each cold and hot air exhaust heat exchange device, exchange with the exhaust air with lower temperature of indoor or waste gas heat, condensation heat release, become high pressure (middle pressure) liquid refrigerant, then enter high pressure (middle pressure) liquid line; When winter heating's circulation time, change working device commutates, from high pressure (middle pressure) liquid refrigerant of high pressure (middle pressure) liquid line, after the expansion throttling device throttling that each cold and hot air exhaust heat exchange device carries, become low-temp low-pressure liquid refrigerant, enter cold and hot air exhaust heat exchange device, exchange with the high temperature air draft of indoor or waste gas heat, evaporation endothermic, become cryogenic gaseous cold-producing medium, then enter the condenser inlet of gases at high pressure (low-pressure gas) pipe, change working device, enter change working device, finally get back to compressor; At transition season, cold and hot air exhaust heat exchange system also can work with miscellaneous equipment together.
Hot air heat exchange system has three cold-producing medium entrance ends, and wherein Single port is connected with high pressure (middle pressure) liquid line; The other end divides again that two ports are managed with gases at high pressure (low-pressure gas) respectively by magnetic valve, low-pressure gas (gases at high pressure) is managed and is connected.When cooling system circulation time, the closed electromagnetic valve be connected is managed with low-pressure gas (gases at high pressure), open with the magnetic valve of gases at high pressure (low-pressure gas) pipe, from the high-temperature high-pressure gas refrigerant of gases at high pressure (low-pressure gas) pipe through each hot air heat exchanger and indoor Cryogenic air heat exchange, condensation heat release, life hot blast is provided, cold-producing medium becomes high pressure (middle pressure) liquid refrigerant, enter into high pressure (pressure) liquid line, then by air conditioning terminal, low-pressure gas (gases at high pressure) pipe, change working device, finally compressor is got back to, when system heats circulation time, manage with low-pressure gas (gases at high pressure) magnetic valve be connected to open, the closed electromagnetic valve be connected is managed with gases at high pressure (low-pressure gas), change working device commutates, evaporator outlet is communicated with exhaust outlet of compressor, condenser inlet is communicated with compressor inlet, from the high-temperature high-pressure refrigerant of domestic hot-water's heat exchanger or compressor from the evaporator outlet of this change working device, managed by low-pressure gas (gases at high pressure), magnetic valve, enter into each hot air heat exchanger and indoor Cryogenic air heat exchange, condensation heat release, life hot blast is provided, cold-producing medium becomes high pressure (middle pressure) liquid refrigerant, enter into high pressure (pressure) liquid line, then by Cooling and Heat Source heat exchanger, air cooling heat exchanger, air-conditioning cold end, low-pressure gas (gases at high pressure) is managed, change working device, finally get back to compressor, at transition season, hot air heat exchange system also can work with miscellaneous equipment together, provides life hot blast.
Cold and hot draining heat-exchange system has two cold-producing medium entrance ends, and wherein one end is connected with high pressure (middle pressure) liquid line, and another port is managed with gases at high pressure (low-pressure gas) and is connected.When cooling in summer circulation time, from the high-temperature high-pressure gas refrigerant of gases at high pressure (low-pressure gas) pipe, enter into each cold and hot draining heat exchanger, with low warm water discharge or the waste water heat exchange of indoor, condensation heat release, become high pressure (middle pressure) liquid refrigerant, then enter high pressure (middle pressure) liquid line; When winter heating's circulation time, change working device commutates, from high pressure (middle pressure) liquid refrigerant of high pressure (middle pressure) liquid line, after the expansion throttling device throttling that each cold and hot draining heat exchanger carries, become low-temp low-pressure liquid refrigerant, enter cold and hot draining heat exchanger, with high warm water discharge or the waste water heat exchange of indoor, evaporation endothermic, become cryogenic gaseous cold-producing medium, then enter the condenser inlet of gases at high pressure (low-pressure gas) pipe, change working device, enter change working device, finally get back to compressor; At transition season, cold and hot draining heat-exchange system also can work with miscellaneous equipment together.
Hot water heat-exchange system has three cold-producing medium entrance ends, and wherein Single port is connected with high pressure (middle pressure) liquid line; The other end divides again that two ports are managed with gases at high pressure (low-pressure gas) respectively by magnetic valve, low-pressure gas (gases at high pressure) is managed and is connected.When cooling system circulation time, the closed electromagnetic valve be connected is managed with low-pressure gas (gases at high pressure), open with the magnetic valve of gases at high pressure (low-pressure gas) pipe, from the high-temperature high-pressure gas refrigerant of gases at high pressure (low-pressure gas) pipe through each hot water heat exchanger and running water heat exchange, condensation heat release, domestic hot-water is provided, cold-producing medium becomes high pressure (middle pressure) liquid refrigerant, enter into high pressure (pressure) liquid line, then by air conditioning terminal, low-pressure gas (gases at high pressure) pipe, change working device, finally compressor is got back to, when system heats circulation time, manage with low-pressure gas (gases at high pressure) magnetic valve be connected to open, the closed electromagnetic valve be connected is managed with gases at high pressure (low-pressure gas), change working device commutates, evaporator outlet is communicated with exhaust outlet of compressor, condenser inlet is communicated with compressor inlet, from the high-temperature high-pressure refrigerant of domestic hot-water's heat exchanger or compressor from the evaporator outlet of this change working device, managed by low-pressure gas (gases at high pressure), magnetic valve, enter into each hot water heat exchanger and running water heat exchange, condensation heat release, domestic hot-water is provided, cold-producing medium becomes high pressure (middle pressure) liquid refrigerant, enter into high pressure (pressure) liquid line, then by Cooling and Heat Source heat exchanger, air cooling heat exchanger, air-conditioning cold end, low-pressure gas (gases at high pressure) is managed, change working device, finally get back to compressor, at transition season, hot water heat-exchange system also can work with miscellaneous equipment together, provides life hot blast.
No matter system is kind of refrigeration cycle or heats circulation, the compressor inlet of change working device is connected with the import of gas-liquid separator all the time, and the outlet of gas-liquid separator is connected with the air entry of compressor.
In air-conditioning cold end system, hot air heat exchange system, hot water heat-exchange system, when there being multiple end-equipment parallel connection in systems in which, end-equipment one end is connected on high pressure (middle pressure) liquid line, one end is connected on public pipe, and public pipe is managed with gases at high pressure (low-pressure gas) by two magnetic valves again, low-pressure gas (gases at high pressure) is managed and is connected.
Cold and hot air exhaust heat exchange system, cold and hot draining heat-exchange system determined by the cold and hot balance of refrigeration system in the operating mode of transition season, and when system needs to absorb heat from the external world, they convert evaporimeter to; When system needs outwardly heat release, they convert condenser to.
Air conditioner cold-heat end, air-conditioning cold end, cold and hot air exhaust heat exchange device, hot air heat exchanger, air cooling heat exchanger are direct-expansion type air cooling heat exchanger, cold-producing medium and air or waste gas carry out heat exchange, low-temp low-pressure liquid refrigerant evaporation endothermic wherein, or high temperature and high pressure gaseous refrigerant condensation heat release wherein, the heat exchanger of the forms such as finned coil can be adopted.Air conditioner cold-heat end, air-conditioning cold end also can adopt direct-expansion type radiation recuperator, rely on the cold and hot radiation that cold-producing medium evaporation endothermic or condensation heat release is wherein formed, for air-conditioned room cooling or heat supply, the radiation recuperator of tubular type or the form such as board-like can be adopted, imbed floor, within the walls, or be contained in furred ceiling.Cooling and Heat Source heat exchanger, domestic hot-water's heat exchanger, cold and hot draining heat exchanger, hot water heat exchanger are water-cooled heat exchanger, the heat exchanger of shell-tube type, coiled, the form such as board-like can be adopted, cold-producing medium carries out heat exchange with recirculated water wherein, low-temp low-pressure liquid refrigerant evaporation endothermic wherein, for refrigeration system provides heat energy, high temperature and high pressure gaseous refrigerant condensation heat release wherein, adds hot cooling water, running water.Cold and hot air exhaust heat exchange device is placed on the room of indoor exhaust wind or waste gas, cold and hot draining heat exchanger is placed on the room of indoor drainage or waste water, as: toilet, kitchen, cold and hot draining heat exchanger can be contained on the water inlet pipe of urinal, w.c.pan, with running water heat exchange, tap water heating or cooling, then for rinsing, this method ratio is contained in that drainpipe to reclaim waste water heat energy simple and practical.Servicing unit in refrigeration system comprises: oil eliminator, reservoir, gas-liquid separator, device for drying and filtering etc., for improving kind of refrigeration cycle.This air-conditioning refrigeration system is varying capacity system, and compressor adopts the combination of separate unit variable conpacitance compressor or multiple compressors, to adapt to the change of refrigeration system cooling and heating load, under the control of automatic control system, regulates operating condition at random, keeping system Effec-tive Function.
The above beneficial effect of the invention is: adopt a set of air-conditioning system, summer cooling, and Winter heat supply again can simultaneously cooling, all-year-around cooling, the whole year provide domestic hot-water, life hot blast, abundant recovering condensing heat, utilize waste heat, used heat, refrigerating efficiency improves, and energy-saving effect is remarkable, reduces equipment investment.
Accompanying drawing explanation
Fig. 1 is the air-conditioning system figure that air cooling heat exchanger is connected with Cooling and Heat Source heat exchanger
Fig. 2 is the air cooling heat exchanger air-conditioning system figure in parallel with Cooling and Heat Source heat exchanger
Fig. 3 is the change working device combined by four magnetic valves
Fig. 4 is the change working device combined by two electric T-shaped valves
Description of reference numerals:
1, compressor, 2, oil eliminator, 3, oil return capillary, 4, domestic hot-water's heat exchanger, 5, four-way change-over valve, 6, Cooling and Heat Source heat exchanger, 7, air cooling heat exchanger, 8, 12, 15, 19, 24, 26, 31, 38, 40, device for drying and filtering, 9, 13, 16, 27, 32, 39, 41, expansion throttling device, 10, reservoir, 11, gas-liquid separator, 14, cold and hot air exhaust heat exchange device, 17, cold and hot draining heat exchanger, 18, 23, 43, 45, 46, 51, 52, 53, 54, electric control valve, 20, hot air heat exchanger, 21, 22, 29, 30, 42, 44, 47, 48, 49, 50, 55, 56, 61, 62, 63, 64, magnetic valve, 25, hot water heat exchanger, 28, air-conditioning cold end, 33, air conditioner cold-heat end, 34, high pressure (middle pressure) liquid line, 35, gases at high pressure (low-pressure gas) are managed, and 36, low-pressure gas (gases at high pressure) is managed, and 37, public pipe, 57, condenser inlet, 58, exhaust outlet of compressor, 59, evaporator outlet, 60, compressor inlet, 65, 66, electric T-shaped valve
concrete implementing method
In Fig. 1, change working device adopts four-way change-over valve 5, and domestic hot-water's heat exchanger 4 is contained between the exhaust outlet of compressor 1 and four-way change-over valve 5, and its refrigerant air inlet is connected with the exhaust outlet of compressor 1, and gas outlet is connected with the exhaust outlet of compressor of four-way change-over valve 5.Air cooling heat exchanger 7 is connected in refrigeration systems with Cooling and Heat Source heat exchanger 6, before and after both, order is interchangeable, be contained between four-way change-over valve 5 and device for drying and filtering 8, expansion throttling device 9, a cold-producing medium port of Cooling and Heat Source heat exchanger 6 is connected with the condenser inlet end of four-way change-over valve 5, and it is connected for return pipes and Cooling and Heat Source (as: source, source of sewage, open water supply, solar energy, various waste heat, used heat etc.) water system by two.The compressor inlet of four-way change-over valve 5 is connected with the import of gas-liquid separator 11, and the outlet of gas-liquid separator 11 is connected with the air entry of compressor 1.
When cooling system circulation time, the condenser inlet of gases at high pressure (low-pressure gas) pipe 35 and four-way change-over valve 5 and Cooling and Heat Source heat exchanger 6(or air cooling heat exchanger 7) a port be connected, the exhaust outlet of compressor of four-way change-over valve 5 is communicated with condenser inlet, evaporator outlet is communicated with compressor inlet, from the high temperature and high pressure gaseous refrigerant of domestic hot-water's heat exchanger 4 or compressor 1 by the exhaust outlet of compressor of four-way change-over valve 5 and condenser inlet, a part enters into the condenser condensation heat release of system end by gases at high pressure (low-pressure gas) pipe 35, become high pressure (middle pressure) liquid refrigerant, flow in high pressure (middle pressure) liquid line 34 again, another part cold-producing medium enters into Cooling and Heat Source heat exchanger 6, air cooling heat exchanger 7 condensation heat release, becomes high pressure liquid refrigerant, by device for drying and filtering 8, expansion throttling device 9, reservoir 10, enters into high pressure (pressure) liquid line 34.Above two parts cold-producing medium converges, enter into the expansion throttling device of system end evaporimeter again, low-pressure, liquid refrigerant is become by throttling, evaporation endothermic in system end evaporimeter, become low temperature low pressure gas cold-producing medium, by low-pressure gas (gases at high pressure) pipe 36, enter four-way change-over valve 5, by the evaporator outlet of four-way change-over valve 5, compressor inlet and gas-liquid separator 11, finally get back in compressor 1.High temperature and high pressure gaseous refrigerant from compressor 1 passes through the condensation of domestic hot-water's heat exchanger 4, is also likely condensed into high-pressure liquid or high-pressure gas-liquid mixture.When high temperature and high pressure gaseous refrigerant does not complete condensation exothermic process in Cooling and Heat Source heat exchanger 6, continue condensation heat release in air cooling heat exchanger 7; When high temperature and high pressure gaseous refrigerant completes condensation exothermic process in Cooling and Heat Source heat exchanger 6, the blower fan of air cooling heat exchanger 7 does not work.
When system heats circulation time, four-way change-over valve 5 commutates, and its condenser inlet is communicated with compressor inlet, and evaporator outlet is communicated with exhaust outlet of compressor.High temperature and high pressure gaseous refrigerant from domestic hot-water's heat exchanger 4 or compressor 1 enters low-pressure gas (gases at high pressure) pipe 36 by the exhaust outlet of compressor of four-way change-over valve 5 and evaporator outlet, enter into system end condenser condenses again, become high pressure (middle pressure) liquid refrigerant, enter in high pressure (middle pressure) liquid pipe 34.Then cold-producing medium divides two parts, a part enters into the expansion throttling device of system end evaporimeter, is become low-pressure, liquid refrigerant by throttling, evaporation endothermic in system end evaporimeter, become low temperature low pressure gas cold-producing medium, enter into gases at high pressure (low-pressure gas) pipe 35; Another part is by reservoir 10, expansion throttling device 9, device for drying and filtering 8, and become low-pressure, liquid refrigerant by throttling, evaporation endothermic in air cooling heat exchanger 7, Cooling and Heat Source heat exchanger 6, becomes low temperature low pressure gas cold-producing medium.Above two parts cold-producing medium converges, and by the condenser inlet of four-way change-over valve 5, compressor inlet and gas-liquid separator 11, finally gets back in compressor 1.When the heat-source Cycles water yield of Cooling and Heat Source heat exchanger 6 enough meets the evaporation endothermic process of low-pressure, liquid refrigerant, air cooling heat exchanger 7 does not work; Otherwise low-pressure, liquid refrigerant completes a part of evaporation endothermic process in air cooling heat exchanger 7, then enter Cooling and Heat Source heat exchanger 6 and complete remaining evaporation endothermic process, Cooling and Heat Source heat exchanger 6 should have antifreezing measures.
Therefore, during kind of refrigeration cycle, pipe 34 is high pressure (middle pressure) liquid line, and pipe 35 is high-pressure gas pipe, and pipe 36 is low-pressure gas pipe; Heat circulation time, pipe 34 is high pressure (middle pressure) liquid line, and pipe 35 is low-pressure gas pipe, and pipe 36 is high-pressure gas pipe.Claim pipe 34 to be high pressure (middle pressure) liquid line 34, claim pipe 35 to be gases at high pressure (low-pressure gas) pipe 35, claim pipe 36 to be low-pressure gas (gases at high pressure) pipe 36.
The main frame of system is constituted with equipment such as compressor 1, oil eliminator 2, oil return capillary 3, domestic hot-water's heat exchanger 4, four-way change-over valve 5, Cooling and Heat Source heat exchanger 6, air cooling heat exchanger 7, device for drying and filtering 8, expansion throttling device 9, reservoir 10, gas-liquid separator 11, electric-control systems, take integrated connection, be placed on outdoor, and take antifreezing measures, or split connects, air cooling heat exchanger 7 is placed on outdoor, and main frame is placed on indoor.When power system capacity is larger, can adopt multiple host, parallel module combined type connects.Main frame passes through high pressure (middle pressure) liquid line 34, gases at high pressure (low-pressure gas) pipe 35 with system end, low-pressure gas (gases at high pressure) pipe 36 is split type is connected.
Two air conditioner cold-heat ends 33 are had in figure, system can be with one or more air conditioner cold-heat end 33, each all with servicing units such as expansion throttling device 32, devices for drying and filtering 31, and parallel connection in systems in which, thus constitute air conditioner cold-heat end system, their one end are connected with high pressure (middle pressure) liquid line 34, the other end is connected with low-pressure gas (gases at high pressure) pipe 36, expansion throttling device 32 is contained in high pressure (middle pressure) between liquid line 34 and air conditioner cold-heat end 33, not blocked in order to ensure expansion throttling device 32 grade, all can fill device for drying and filtering at its two ends.
Two air-conditioning cold ends 28 are had in figure, system can be with one or more air conditioner cold-heat end 28, each all with expansion throttling device 27, servicing unit such as device for drying and filtering 26 grade, and parallel connection in systems in which, thus constitute air-conditioning cold end system, their one end are connected with high pressure (middle pressure) liquid line 36, the other end is connected with public pipe 37, public pipe 37 is by magnetic valve 29, 30 respectively with gases at high pressure (low-pressure gas) pipe 35, low-pressure gas (gases at high pressure) pipe 36 connects, expansion throttling device 27 is contained in high pressure (middle pressure) between liquid line 34 and air-conditioning cold end 28.
Two hot water heat exchangers 25 are had in figure, system can be with one or more hot water heat exchanger 25, each all with servicing units such as electric control valve 23, devices for drying and filtering 24, and parallel connection in systems in which, thus constitute hot water heat-exchange system, their one end are connected with high pressure (middle pressure) liquid line 34, and the other end is connected with public pipe 37, and electric control valve 23 is contained in high pressure (middle pressure) between liquid line 34 and hot water heat exchanger 25.
Two hot air heat exchangers 20 are had in figure, system can be with one or more hot air heat exchanger 20, each all with servicing units such as electric control valve 18, devices for drying and filtering 19, and parallel connection in systems in which, thus constitute hot air heat exchange system, their one end are connected with high pressure (middle pressure) liquid line 34, and the other end is connected with public pipe 37, and electric control valve 18 is contained in high pressure (middle pressure) between liquid line 34 and hot air heat exchanger 20.
Therefore, the operating condition of hot water heat-exchange system and hot air heat exchange system is identical, their one end are connected on high pressure (middle pressure) liquid line 34, the other end is connected on public pipe 37, both are parallel relationship, form a combined system, public pipe 37 is connected with gases at high pressure (low-pressure gas) pipe 35, low-pressure gas (gases at high pressure) pipe 36 respectively by magnetic valve 21,22.Hot water heat-exchange system, hot air heat exchange system also can be connected with gases at high pressure (low-pressure gas) pipe 35, low-pressure gas (gases at high pressure) pipe 36 each via two magnetic valves.
Two cold and hot draining heat exchangers 17 are had in figure, system can be with one or more cold and hot draining heat exchanger 17, each all with servicing units such as expansion throttling device 16, devices for drying and filtering 15, and parallel connection in systems in which, thus constitute cold and hot draining heat-exchange system, their one end are connected with high pressure (middle pressure) liquid line 34, and the other end is connected with gases at high pressure (low-pressure gas) pipe 35, and expansion throttling device 16 is contained between high pressure (middle pressure) liquid line 34 and cold and hot draining heat exchanger 17.
Two cold and hot air exhaust heat exchange devices 14 are had in figure, system can be with one or more cold and hot draining heat exchanger 14, each all with servicing units such as expansion throttling device 13, devices for drying and filtering 12, and parallel connection in systems in which, thus constitute cold and hot air exhaust heat exchange system, their one end are connected with high pressure (middle pressure) liquid line 34, and the other end is connected with gases at high pressure (low-pressure gas) pipe 35, and expansion throttling device 13 is contained between high pressure (middle pressure) liquid line 34 and cold and hot air exhaust heat exchange device 14.
In figure, the operating condition of cold and hot air exhaust heat exchange system, cold and hot draining heat-exchange system is identical, and both parallel connections in systems in which.
Cooling in summer circulation time, refrigerant circulating process is: compressor 1 → oil eliminator 2 → domestic hot-water heat exchanger 4 → four-way change-over valve 5, then two-way is divided, one tunnel → Cooling and Heat Source heat exchanger 6 → air cooling heat exchanger 7 → device for drying and filtering 8 → expansion throttling device 9 → reservoir 10 → high pressure (middle pressure) liquid line 34, another road → gases at high pressure (low-pressure gas) pipe 35, then You Fen tri-tunnel enters cold and hot air exhaust heat exchange system, cold and hot draining heat-exchange system, the combined system of hot air heat exchange system and hot water heat-exchange system, one tunnel → cold and hot air exhaust heat exchange device 14 → expansion throttling device 13 → device for drying and filtering 12, two tunnels → cold and hot draining heat exchanger 17 → expansion throttling device 16 → device for drying and filtering 15, three tunnels → magnetic valve 21, then two-way is divided again to enter hot air heat exchange system, hot water heat-exchange system, one tunnel → hot air heat exchanger 20 → device for drying and filtering 19 → electric control valve 18, another road → hot water heat exchanger 25 → device for drying and filtering 24 → electric control valve 23, this four road finally imports in high pressure (middle pressure) liquid line 34.Like this, from the high-temperature high-pressure gas refrigerant of compressor 1 through domestic hot-water's heat exchanger 4, Cooling and Heat Source heat exchanger 6, air cooling heat exchanger 7, cold and hot air exhaust heat exchange device 14, cold and hot draining heat exchanger 17, hot air heat exchanger 20, the condensation heat release of hot water heat exchanger 25, become high pressure (middle pressure) liquid refrigerant, after importing high pressure (middle pressure) liquid line 34, two-way is divided again to enter into air conditioner cold-heat end system and air-conditioning cold end system, one tunnel → device for drying and filtering 26 → expansion throttling device 27 → air-conditioning cold end 28 → magnetic valve 30, another road → device for drying and filtering 31 → expansion throttling device 32 → air conditioner cold-heat end 33, high pressure (middle pressure) liquid refrigerant is through expansion throttling device 27, after 32 throttlings, at air-conditioning cold end 28, air conditioner cold-heat end 33 evaporation endothermic, to air-conditioned room cooling, become low-pressure refrigerant gas, import low-pressure gas (gases at high pressure) pipe 36 → four-way change-over valve 5 → gas-liquid separator 11 → compressor 1, complete a kind of refrigeration cycle.
In above-mentioned cyclic process, magnetic valve 21, 30 open, magnetic valve 22, 29 close, expansion throttling device 9 is standard-sized sheet, or, electric control valve 18, 23 apertures reduce, be in throttle, expansion throttling device 9 is also throttle, liquid refrigerant is pressed in high pressure liquid refrigerant throttling being become, highly pressurised liquid pipe 34 becomes middle press liquid pipe, Cooling and Heat Source heat exchanger 6, air cooling heat exchanger 7 and cold and hot air exhaust heat exchange system, cold and hot draining heat-exchange system, hot air heat exchange system, hot water heat-exchange system is all condensation heat release operating mode, be parallel relationship in systems in which, air conditioner cold-heat end system and air-conditioning cold end system are all evaporation endothermic operating mode, be parallel relationship in systems in which, and be series relationship with the said equipment.
At cooling in summer circulation time, domestic hot-water's heat exchanger 4 provides domestic hot-water, remaining condensation heat is discharged in cold water source by Cooling and Heat Source heat exchanger 6, remaining condensation heat is discharged in air by air cooling heat exchanger 7, remaining condensation heat is discharged in indoor exhaust wind or waste gas by cold and hot air exhaust heat exchange device 14, remaining condensation heat is discharged in indoor drainage or waste water by cold and hot draining heat exchanger 17, hot air heat exchanger 20 condensation heat heating life hot blast, hot water heat exchanger 25 uses condensation heat heating domestic hot water, low-pressure, liquid refrigerant is at air conditioner cold-heat end 33, air-conditioning cold end 25 evaporation endothermic, for air-conditioned room cooling.
When the refrigeration duty of air conditioning terminal system is less, Cooling and Heat Source heat exchanger 6, air cooling heat exchanger 7, cold and hot air exhaust heat exchange device 14, cold and hot draining heat exchanger 17 stop discharge condensation heat, the condensation heat of system meets the heating needs of domestic hot-water's heat exchanger 4, hot air heat exchanger 20, hot water heat exchanger 25 as far as possible, or adopts the measures such as electric auxiliary heating mode.
Season in winter heats circulation time, refrigerant circulating process is: compressor 1 → oil eliminator 2 → domestic hot-water heat exchanger 4 → four-way change-over valve 5, the combined system of then dividing two-way to enter hot water heat-exchange system and hot air heat exchange system and air conditioner cold-heat end system, one tunnel → magnetic valve 22, then two-way is divided again to enter hot air heat exchange system, hot water heat-exchange system, one tunnel → hot air heat exchanger 20 → device for drying and filtering 19 → electric control valve 18 → high pressure (middle pressure) liquid line 34, another road → hot water heat exchanger 25 → device for drying and filtering 24 → electric control valve 23 → high pressure (middle pressure) liquid line 34, another road → air conditioner cold-heat end 33 → expansion throttling device 32 → device for drying and filtering 31 → high pressure (middle pressure) liquid line 34.Above three tunnel condensation heat releases become high pressure (middle pressure) liquid refrigerant and enter high pressure (middle pressure) liquid line 34, You Fen tetra-road enters into air-conditioning cold end system, cold and hot draining heat-exchange system, cold and hot air exhaust heat exchange system, air cooling heat exchanger 7, evaporation endothermic in Cooling and Heat Source heat exchanger 6, one tunnel → device for drying and filtering 26 → expansion throttling device 27 → air-conditioning cold end 28 → magnetic valve 29 → gases at high pressure (low-pressure gas) pipe 35, two tunnels → device for drying and filtering 15 → expansion throttling device 16 → cold and hot draining heat exchanger 17 → gases at high pressure (low-pressure gas) pipe 35, three tunnels → device for drying and filtering 12 → expansion throttling device 13 → cold and hot air exhaust heat exchange device 14 → gases at high pressure (low-pressure gas) pipe 35, four tunnels → reservoir 10 → expansion throttling device 9 → device for drying and filtering 8 → air cooling heat exchanger 7 → Cooling and Heat Source heat exchanger 6, → four-way change-over valve 5 → gas-liquid separator 11 → compressor 1 is converged on four tunnels, complete and once heat circulation.
In above-mentioned cyclic process, magnetic valve 22,29 is opened, magnetic valve 21,30 cuts out, when electric control valve 18,23, expansion throttling device 32 be standard-sized sheet time, high-temperature high-pressure gas refrigerant is condensed into high pressure liquid refrigerant, enter into high pressure (pressure) liquid line 34, or, electric control valve 18,23, expansion throttling device 32 is in throttle, liquid refrigerant is pressed in high pressure liquid refrigerant throttling being become, enter into high pressure (pressure) liquid line 34, electric control valve 18,23 also can change expansion throttling device into.
Air conditioner cold-heat end system, hot air heat exchange system, hot water heat-exchange system are all condensation heat release operating mode, be parallel relationship in systems in which, Cooling and Heat Source heat exchanger 6, air cooling heat exchanger 7, cold and hot air exhaust heat exchange system, cold and hot draining heat-exchange system, air-conditioning cold end system are all evaporation endothermic operating mode, be parallel relationship in systems in which, and be series relationship with the said equipment.
Heat circulation time in the winter time, domestic hot-water's heat exchanger 4 provides domestic hot-water, Cooling and Heat Source heat exchanger 6 evaporation endothermic from thermal water source, air cooling heat exchanger 7 absorbs heat from air evaporation, cold and hot air exhaust heat exchange device 14 is evaporation endothermic in air draft or waste gas indoor, cold and hot draining heat exchanger 17 is evaporation endothermic in draining or waste water indoor, hot air heat exchanger 20 condensation heat heating life hot blast, hot water heat exchanger 25 uses condensation heat heating domestic hot water, low-pressure, liquid refrigerant is at air-conditioning cold end 25 evaporation endothermic, for air-conditioned room cooling, high-temperature high-pressure gas refrigerant is in air conditioner cold-heat end 33 condensation heat release, for air-conditioned room heat supply.
At transition season, air conditioner cold-heat end system does not work, air-conditioning cold end system still needs cooling, but the refrigeration duty of system is less, condensation heat cannot meet domestic hot-water's heat exchanger 4, hot air heat exchanger 20, the heating of hot water heat exchanger 25 needs, system must heat circulation, Cooling and Heat Source heat exchanger 6 evaporation endothermic from thermal water source, air cooling heat exchanger 7 absorbs heat from air evaporation, refrigerant circulating process is: compressor 1 → oil eliminator 2 → domestic hot-water heat exchanger 4 → four-way change-over valve 5 → magnetic valve 22, then two-way is divided again to enter hot air heat exchange system, hot water heat-exchange system, one tunnel → hot air heat exchanger 20 → device for drying and filtering 19 → electric control valve 18 → high pressure (middle pressure) liquid line 34, another road → hot water heat exchanger 25 → device for drying and filtering 24 → electric control valve 23 → high pressure (middle pressure) liquid line 34, above two tunnel condensation heat releases become high pressure (middle pressure) liquid refrigerant and enter high pressure (middle pressure) liquid line 34, You Fen tetra-road enters into air-conditioning cold end system, cold and hot draining heat-exchange system, cold and hot air exhaust heat exchange system, air cooling heat exchanger 7, evaporation endothermic in Cooling and Heat Source heat exchanger 6, one tunnel → device for drying and filtering 26 → expansion throttling device 27 → air-conditioning cold end 28 → magnetic valve 29 → gases at high pressure (low-pressure gas) pipe 35, two tunnels → device for drying and filtering 15 → expansion throttling device 16 → cold and hot draining heat exchanger 17 → gases at high pressure (low-pressure gas) pipe 35, three tunnels → device for drying and filtering 12 → expansion throttling device 13 → cold and hot air exhaust heat exchange device 14 → gases at high pressure (low-pressure gas) pipe 35, four tunnels → reservoir 10 → expansion throttling device 9 → device for drying and filtering 8 → air cooling heat exchanger 7 → Cooling and Heat Source heat exchanger 6, → four-way change-over valve 5 → gas-liquid separator 11 → compressor 1 is converged on four tunnels, complete and once heat circulation.
In above-mentioned cyclic process, domestic hot-water's heat exchanger 4 and various system end work simultaneously, and domestic hot-water's heat exchanger 4, hot air heat exchanger 20, hot water heat exchanger 25, air-conditioning cold end 28, air conditioner cold-heat end 33 also can work independently.
When domestic hot-water's heat exchanger 4 works independently, air cooling heat exchanger 7, Cooling and Heat Source heat exchanger 6 are evaporimeter, absorb heat from air, Cooling and Heat Source, for life hot water heat exchanger 4 provides condensation heat.When magnetic valve 22 is opened, refrigerant circulating process is: compressor 1 → oil eliminator 2 → domestic hot-water heat exchanger 4 → four-way change-over valve 5 → magnetic valve 22, one tunnel → hot air heat exchanger 20 → device for drying and filtering 19 → electric control valve 18 → high pressure (middle pressure) liquid line 34, or another road → hot water heat exchanger 25 → device for drying and filtering 24 → electric control valve 23 → high pressure (middle pressure) liquid line 34, then → reservoir 10 → expansion throttling device 9 → device for drying and filtering 8 → air cooling heat exchanger 7 → Cooling and Heat Source heat exchanger 6 → four-way change-over valve 5 → gas-liquid separator 11 → compressor 1, complete and once heat circulation.When magnetic valve 30 is opened, refrigerant circulating process is: compressor 1 → oil eliminator 2 → domestic hot-water heat exchanger 4 → four-way change-over valve 5 → magnetic valve 30 → air-conditioning cold end 28 → expansion throttling device 27 → device for drying and filtering 26 → reservoir 10 → expansion throttling device 9 → device for drying and filtering 8 → air cooling heat exchanger 7 → Cooling and Heat Source heat exchanger 6 → four-way change-over valve 5 → gas-liquid separator 11 → compressor 1, completes and once heat circulation.When expansion throttling device 32 is opened, refrigerant circulating process is: compressor 1 → oil eliminator 2 → domestic hot-water heat exchanger 4 → four-way change-over valve 5 → air conditioner cold-heat end 33 → expansion throttling device 32 → device for drying and filtering 31 → reservoir 10 → expansion throttling device 9 → device for drying and filtering 8 → air cooling heat exchanger 7 → Cooling and Heat Source heat exchanger 6 → four-way change-over valve 5 → gas-liquid separator 11 → compressor 1, completes and once heat circulation.In above-mentioned circulation, hot air heat exchanger 20, hot water heat exchanger 25, air-conditioning cold end 28, air conditioner cold-heat end 33 flow through passage only as cold-producing medium, do not do heat exchange.
When hot air heat exchanger 20(or hot water heat exchanger 25) when working independently, air cooling heat exchanger 7, Cooling and Heat Source heat exchanger 6 are evaporimeter, absorb heat from air, Cooling and Heat Source, are hot air heat exchanger 20(or hot water heat exchanger 25) condensation heat is provided.Refrigerant circulating process is: compressor 1 → oil eliminator 2 → domestic hot-water heat exchanger 4 → four-way change-over valve, 5 → magnetic valve, 22 → hot air heat exchanger 20(or hot water heat exchanger 25) → device for drying and filtering 19(or device for drying and filtering 24) → electric control valve 18(or electric control valve 23) → reservoir 10 → expansion throttling device 9 → device for drying and filtering 8 → air cooling heat exchanger 7 → Cooling and Heat Source heat exchanger 6 → four-way change-over valve 5 → gas-liquid separator 11 → compressor 1, complete and once heat circulation.
When air-conditioning cold end 28 works independently, air cooling heat exchanger 7, Cooling and Heat Source heat exchanger 6 are as condenser, heat extraction in air, Cooling and Heat Source, refrigerant circulating process is: compressor 1 → oil eliminator 2 → domestic hot-water heat exchanger 4 → four-way change-over valve 5 → Cooling and Heat Source heat exchanger 6 → air cooling heat exchanger 7 → device for drying and filtering 8 → expansion throttling device 9 → reservoir 10 → device for drying and filtering 26 → expansion throttling device 27 → air-conditioning cold end 28 → magnetic valve 30 → four-way change-over valve 5 → gas-liquid separator 11 → compressor 1, completes a kind of refrigeration cycle.
When air conditioner cold-heat end 33 separate refrigeration, air cooling heat exchanger 7, Cooling and Heat Source heat exchanger 6 are as condenser, heat extraction in air, Cooling and Heat Source, refrigerant circulating process is: compressor 1 → oil eliminator 2 → domestic hot-water heat exchanger 4 → four-way change-over valve 5 → Cooling and Heat Source heat exchanger 6 → air cooling heat exchanger 7 → device for drying and filtering 8 → expansion throttling device 9 → reservoir 10 → device for drying and filtering 31 → expansion throttling device 32 → air conditioner cold-heat end 33 → four-way change-over valve 5 → gas-liquid separator 11 → compressor 1, completes a kind of refrigeration cycle.
When air conditioner cold-heat end 33 heats separately, air cooling heat exchanger 7, Cooling and Heat Source heat exchanger 6 are as evaporimeter, absorb heat from air, Cooling and Heat Source, refrigerant circulating process is: compressor 1 → oil eliminator 2 → domestic hot-water heat exchanger 4 → four-way change-over valve 5 → air conditioner cold-heat end 33 → expansion throttling device 32 → device for drying and filtering 31 → reservoir 10 → expansion throttling device 9 → device for drying and filtering 8 → air cooling heat exchanger 7 → Cooling and Heat Source heat exchanger 6 → four-way change-over valve 5 → gas-liquid separator 11 → compressor 1, completes and once heat circulation.
In systems in which, domestic hot-water's heat exchanger 4 and hot water heat exchanger 25 are all to provide domestic hot-water, and because function is identical, both should not use in a system simultaneously.Domestic hot-water's heat exchanger 4 is applicable to the occasion that using amount of hot water is large, user concentrates, such as: bathroom; Hot water heat exchanger 25 is applicable to the occasion that using amount of hot water is little, user disperses, such as: the hand basin of office building toilet.
In Fig. 2, Cooling and Heat Source heat exchanger 6 and air cooling heat exchanger 7 are parallel relationship, respectively carry expansion throttling device 39,41.
In Fig. 2, magnetic valve 44 is for the short valve of domestic hot-water's heat exchanger 4, and it is positioned at system host, is contained on the refrigerant line between high pressure (middle pressure) liquid line 34 and low-pressure gas (gases at high pressure) pipe 36.When system end does not work, domestic hot-water's heat exchanger 4 separately heat hot water time, cold-producing medium still will circulate from end, enter into air cooling heat exchanger 7, Cooling and Heat Source heat exchanger 6 evaporation endothermic, circulation distance is long, after increasing magnetic valve 44, cold-producing medium no longer enters end, refrigerant circulating process is: compressor 1 → oil eliminator 2 → electric control valve 45 → domestic hot-water heat exchanger 4 → four-way change-over valve 5 → low-pressure gas (gases at high pressure) pipe 36 → magnetic valve 44 → reservoir 10, then two-way is divided, one tunnel → device for drying and filtering 40 → expansion throttling device 41 → device for drying and filtering 40 → Cooling and Heat Source heat exchanger 6, another road → device for drying and filtering 38 → expansion throttling device 39 → device for drying and filtering 38 → air cooling heat exchanger 7, two-way converges → magnetic valve 42 → four-way change-over valve 5 → gas-liquid separator 11 → compressor 1, complete and once heat circulation.After increasing magnetic valve 44, above-mentioned circulating path shortens, and system effectiveness improves.This short valve not only adopts magnetic valve, also can adopt electric control valve or other adjustable gate, when working for domestic hot-water's heat exchanger 4 and end system simultaneously, and adjusting refrigerant flow rate.Domestic hot-water's heat exchanger 4 adds shunt valve and electric control valve 45,46, for regulating the refrigerant flow through domestic hot-water's heat exchanger 4.
In Fig. 2, cold and hot air exhaust heat exchange system and cold and hot draining heat-exchange system add magnetic valve 47,48,49,50, it is made to be connected with gases at high pressure (low-pressure gas) pipe 35, low-pressure gas (gases at high pressure) pipe 36 respectively, in system, each end is connected by public pipe 37, no matter in any season, by cut-offfing magnetic valve 47,48,49,50, realize any conversion of refrigeration, heating condition.
In Fig. 2, the magnetic valve 21,22 in hot-air system and hot-water heating system is replaced by electric control valve 51,52,53,54, cancel electric control valve 18,23 and public pipe 37, but throttling high pressure liquid refrigerant is more difficult.
In FIG, when winter domestic hot-water's heat exchanger 4 and additional end system do not work, when the refrigeration duty of air-conditioning cold end system is greater than the thermic load of air conditioner cold-heat end system, the condensation heat of system spare does not emit by Cooling and Heat Source heat exchanger 6 or air cooling heat exchanger 7, such kind of refrigeration cycle cannot realize, and therefore adds magnetic valve 42,55,56 and electric control valve 43 in the drawings.Magnetic valve 42 is contained on the pipeline between Cooling and Heat Source heat exchanger 6, air cooling heat exchanger 7 and gases at high pressure (low-pressure gas) pipe 35, four-way change-over valve 5 condenser inlet; Electric control valve 43 is contained on Cooling and Heat Source heat exchanger 6, pipeline between air cooling heat exchanger 7 and low-pressure gas (gases at high pressure) pipe 36, and it also can adopt magnetic valve, and system utilizes expansion throttling device 9,39,41 adjusting refrigerant flow rate; One end of air conditioner cold-heat end system is communicated with gases at high pressure (low-pressure gas) pipe 35 by magnetic valve 55, and one end of air conditioner cold-heat end system is communicated with low-pressure gas (gases at high pressure) pipe 36 by magnetic valve 56.When merely add magnetic valve 55, 56, do not increase magnetic valve 42 and electric control valve 43, magnetic valve 29, 56 close, refrigerant circulating process is: compressor 1 → oil eliminator 2 → electric control valve 45 → domestic hot-water heat exchanger 4 → four-way change-over valve 5, then two-way is divided, one tunnel → air cooling heat exchanger 7 → device for drying and filtering 38 → expansion throttling device 39 → device for drying and filtering 38 → reservoir 10, another road → magnetic valve 55 → air conditioner cold-heat end 33 → expansion throttling device 32 → device for drying and filtering 31, two-way converges → device for drying and filtering 26 → expansion throttling device 27 → air-conditioning cold end 28 → magnetic valve 30 → four-way change-over valve 5 → gas-liquid separator 11 → compressor 1, complete a kind of refrigeration cycle.When merely add magnetic valve 42 and electric control valve 43, do not increase magnetic valve 55, 56, magnetic valve 30, 42 close, four-way change-over valve 5 commutates, refrigerant circulating process is: compressor 1 → oil eliminator 2 → electric control valve 45 → domestic hot-water heat exchanger 4(or electric control valve 46) → four-way change-over valve 5, then two-way is divided, one tunnel → electric control valve 43 → air cooling heat exchanger 7 → device for drying and filtering 38 → expansion throttling device 39 → device for drying and filtering 38 → reservoir 10 → high pressure (middle pressure) liquid line 34, another road → air conditioner cold-heat end 33 → expansion throttling device 32 → device for drying and filtering 31 → high pressure (middle pressure) liquid line 34, two-way converges → device for drying and filtering 26 → expansion throttling device 27 → air-conditioning cold end 28 → magnetic valve 29 → four-way change-over valve 5 → gas-liquid separator 11 → compressor 1, complete a kind of refrigeration cycle.
In Fig. 3, be combined into a kind of change working device by four magnetic valves 61,62,63,64, it is identical with the function of four-way change-over valve 5.When cooling system circulation time, magnetic valve 61,63 is opened, and magnetic valve 62,64 cuts out, and condenser inlet 57 is communicated with exhaust outlet of compressor 58, and evaporator outlet 59 is communicated with compressor inlet 60; When system heats circulation time, magnetic valve 61,63 cuts out, and magnetic valve 62,64 is opened, and condenser inlet 57 is communicated with compressor inlet 60, and evaporator outlet 59 is communicated with exhaust outlet of compressor 58.
Fig. 4 is by two electric T-shaped valves 65, the 66 change working devices combined, when cooling system circulation time, with condenser inlet 57 in electric T-shaped valve 65, the spool that exhaust outlet of compressor 58 is connected is opened and is communicated with, the spool be connected with compressor inlet 60 is closed, with evaporator outlet 59 in electric T-shaped valve 66, the spool that compressor inlet 60 is connected is opened and is communicated with, the spool be connected with exhaust outlet of compressor 58 is closed, like this, the flow process of cold-producing medium is, high-pressure gaseous (or liquid) cold-producing medium → exhaust outlet of compressor 58 → electric T-shaped valve 65 → condenser inlet 57, low-pressure gaseous refrigerant → evaporator outlet 59 → electric T-shaped valve 66 → compressor inlet 60, when system heats circulation time, with condenser inlet 57 in electric T-shaped valve 65, the spool that compressor inlet 60 is connected is opened and is communicated with, the spool be connected with exhaust outlet of compressor 58 is closed, with evaporator outlet 59 in electric T-shaped valve 66, the spool that exhaust outlet of compressor 58 is connected is opened and is communicated with, the spool be connected with compressor inlet 60 is closed, like this, the flow process of cold-producing medium is, high-pressure gaseous (or liquid) cold-producing medium → exhaust outlet of compressor 58 → electric T-shaped valve 66 → evaporator outlet 59, low-pressure gaseous refrigerant → condenser inlet 57 → electric T-shaped valve 65 → compressor inlet 60.
Be not limited only to above change working device, native system also can adopt other any type of change working device.
In sum, the invention belongs to multiple on-line system, during for family, cancel air-conditioning cold end 28, hot water heat exchanger 25; During for hotel, cancel air-conditioning cold end 28, hot water heat exchanger 25(or domestic hot-water's heat exchanger 4), system should take layered arrangement; During for office building, air conditioner cold-heat end system should take layered arrangement, and air-conditioning cold end, additional end system are taked to be arranged vertically; The end that multiple function is identical should be connected on public pipe 37, and be connected with gases at high pressure (low-pressure gas) pipe 35, low-pressure gas (gases at high pressure) pipe 36 respectively with two magnetic valves, the tie point of end-equipment and system can be reduced like this, reduce the probability of refrigrant leakage.Existing three-pipe heating reclaiming type source pump, three pipelines of its air conditioning terminal and system have three tie points, refrigerant flow direction is changed by two magnetic valves, and air conditioning terminal of the present invention and system pipeline only have two tie points, instead of two magnetic valves with four-way change-over valve and change refrigerant flow direction.
The above is only better implementing method of the present invention, not does any pro forma restriction to the present invention.Any simple modification done above implementing method according to technical spirit of the present invention, equivalent variations and modification, all belong to protection scope of the present invention.

Claims (9)

1. direct-expansion type wind water cooling air-conditioning system comprises air conditioner cold-heat end system, air-conditioning cold end system, cold and hot air exhaust heat exchange system, hot air heat exchange system, cold and hot draining heat-exchange system, hot water heat-exchange system, domestic hot-water's heat exchanger, air cooling heat exchanger, Cooling and Heat Source heat exchanger, compressor, expansion throttling device, change working device, servicing unit, refrigerant circulation pipe, cold-producing medium, air conditioner cold-heat end system comprises air conditioner cold-heat end, expansion throttling device, servicing unit, air-conditioning cold end system comprises air-conditioning cold end, expansion throttling device, magnetic valve, servicing unit, cold and hot air exhaust heat exchange system comprises cold and hot air exhaust heat exchange device, expansion throttling device, servicing unit, hot air heat exchange system comprises hot air heat exchanger, electric control valve, magnetic valve, cold and hot draining heat-exchange system comprises cold and hot draining heat exchanger, expansion throttling device, servicing unit, hot water heat-exchange system comprises hot water heat exchanger, electric control valve, magnetic valve, they are linked in sequence into multiple cycle refrigeration system, it is characterized in that,
Air conditioner cold-heat end, air-conditioning cold end, cold and hot air exhaust heat exchange device, hot air heat exchanger, air cooling heat exchanger is direct-expansion type air cooling heat exchanger, cold-producing medium and air carry out heat exchange, or air conditioner cold-heat end, air-conditioning cold end is direct-expansion type radiation recuperator, air conditioner cold-heat end as evaporimeter to air-conditioned room cooling, it is converted to condenser to air-conditioned room heat supply, air-conditioning cold end is annual to air-conditioned room cooling as evaporimeter, cold and hot air exhaust heat exchange device absorbs heat as in evaporimeter indoor air draft or waste gas, it is converted to condenser to heat extraction in indoor exhaust wind or waste gas, hot air heat exchanger provides life hot blast as condenser the whole year, air cooling heat exchanger absorbs heat from air as evaporimeter, it is converted to condenser to heat extraction in air,
Cold and hot draining heat exchanger, hot water heat exchanger, domestic hot-water's heat exchanger, Cooling and Heat Source heat exchanger is water-cooled heat exchanger, cold-producing medium and recirculated water carry out heat exchange, cold and hot draining heat exchanger absorbs heat as in evaporimeter indoor draining or waste water, it is converted to condenser to heat extraction in indoor drainage or waste water, hot water heat exchanger, domestic hot-water's heat exchanger is as the annual heating tap water of condenser, domestic hot-water is provided, it is connected with the hot water supply system of building for return pipe, Cooling and Heat Source heat exchanger absorbs heat from thermal water source as evaporimeter, it is converted to condenser to heat extraction in cold water source, it is connected with Cooling and Heat Source water system for return pipe,
One or more air conditioner cold-heat end is had in air conditioner cold-heat end system, their parallel connections in systems in which, each all with expansion throttling device, their one end are connected with high pressure (middle pressure) liquid line, the other end is managed with low-pressure gas (gases at high pressure) and is connected, and expansion throttling device is contained in high pressure (middle pressure) between liquid line and air conditioner cold-heat end;
One or more air-conditioning cold end is had in air-conditioning cold end system, their parallel connections in systems in which, each all with expansion throttling device, their one end are connected with high pressure (middle pressure) liquid line, the other end is connected with public pipe, public pipe is managed with gases at high pressure (low-pressure gas) respectively by two magnetic valves, low-pressure gas (gases at high pressure) pipe is connected, and expansion throttling device is contained in high pressure (middle pressure) between liquid line and air-conditioning cold end;
One or more hot water heat exchanger is had in hot water heat-exchange system, their parallel connections in systems in which, each all with electric control valve, be contained in high pressure (middle pressure) between liquid line and hot water heat exchanger, their one end are connected with high pressure (middle pressure) liquid line, the other end is connected with public pipe, and public pipe is managed with gases at high pressure (low-pressure gas) respectively by two magnetic valves, low-pressure gas (gases at high pressure) pipe is connected;
One or more hot air heat exchanger is had in hot air heat exchange system, their parallel connections in systems in which, each all with electric control valve, be contained in high pressure (middle pressure) between liquid line and hot air heat exchanger, their one end are connected with high pressure (middle pressure) liquid line, the other end is connected with public pipe, and public pipe is managed with gases at high pressure (low-pressure gas) respectively by two magnetic valves, low-pressure gas (gases at high pressure) pipe is connected;
One or more cold and hot draining heat exchanger is had in cold and hot draining heat-exchange system, their parallel connections in systems in which, each all with expansion throttling device, their one end are connected with high pressure (middle pressure) liquid line, the other end is connected with gases at high pressure (low-pressure gas) pipe, and expansion throttling device is contained between high pressure (middle pressure) liquid line and cold and hot draining heat exchanger;
One or more cold and hot air exhaust heat exchange device is had in cold and hot air exhaust heat exchange system, their parallel connections in systems in which, each all with expansion throttling device, their one end are connected with high pressure (middle pressure) liquid line, the other end is connected with gases at high pressure (low-pressure gas) pipe, and expansion throttling device is contained between high pressure (middle pressure) liquid line and cold and hot air exhaust heat exchange device;
Domestic hot-water's heat exchanger is contained between the exhaust outlet of compressor and change working device, its refrigerant air inlet is connected with the exhaust outlet of compressor, gas outlet is connected with the exhaust outlet of compressor of change working device, air cooling heat exchanger, Cooling and Heat Source heat exchanger is contained in change working device and servicing unit, between expansion throttling device, Cooling and Heat Source heat exchanger, a cold-producing medium port of air cooling heat exchanger and the condenser inlet of change working device are managed with gases at high pressure (low-pressure gas) and are connected, the evaporator outlet of change working device is managed with low-pressure gas (gases at high pressure) and is connected, the compressor inlet of change working device is connected with the import of gas-liquid separator, the outlet of gas-liquid separator is connected with the air entry of compressor,
When cooling system circulation time, the exhaust outlet of compressor of change working device is communicated with condenser inlet, evaporator outlet is communicated with compressor inlet, from the high temperature and high pressure gaseous refrigerant of domestic hot-water's heat exchanger or compressor by the exhaust outlet of compressor of change working device and condenser inlet, a part enters into the condenser condensation heat release of system end by gases at high pressure (low-pressure gas) pipe, become high pressure (middle pressure) liquid refrigerant, then flow in high pressure (middle pressure) liquid line; Another part cold-producing medium enters into Cooling and Heat Source heat exchanger, air cooling heat exchanger condensation heat release, becomes high pressure liquid refrigerant, by servicing unit, expansion throttling device, enters into high pressure (pressure) liquid line; Above two parts cold-producing medium converges, enter into the expansion throttling device of system end evaporimeter again, low-pressure, liquid refrigerant is become by throttling, evaporation endothermic in system end evaporimeter, become low temperature low pressure gas cold-producing medium, by low-pressure gas (gases at high pressure) pipe, enter change working device, by the evaporator outlet of change working device, compressor inlet and gas-liquid separator, finally get back in compressor;
When system heats circulation time, change working device commutates, its condenser inlet is communicated with compressor inlet, evaporator outlet is communicated with exhaust outlet of compressor, from the high temperature and high pressure gaseous refrigerant of domestic hot-water's heat exchanger or compressor by the exhaust outlet of compressor of change working device, evaporator outlet enters low-pressure gas (gases at high pressure) pipe, enter into system end condenser condenses again, become high pressure (middle pressure) liquid refrigerant, enter in high pressure (middle pressure) liquid pipe, then cold-producing medium divides two parts, a part enters into the expansion throttling device of system end evaporimeter, low-pressure, liquid refrigerant is become by throttling, evaporation endothermic in system end evaporimeter, become low temperature low pressure gas cold-producing medium, enter into gases at high pressure (low-pressure gas) pipe, another part is by servicing unit, expansion throttling device, low-pressure, liquid refrigerant is become by throttling, evaporation endothermic in air cooling heat exchanger, Cooling and Heat Source heat exchanger, become low temperature low pressure gas cold-producing medium, above two parts cold-producing medium converges, by the condenser inlet of change working device, compressor inlet and gas-liquid separator, finally get back in compressor,
The main frame of system is constituted with compressor, domestic hot-water's heat exchanger, change working device, Cooling and Heat Source heat exchanger, air cooling heat exchanger, expansion throttling device, servicing unit, electric-control system equipment, take integrated connection, be placed on outdoor, or split connects, air cooling heat exchanger is placed on outdoor, main frame is placed on indoor, multiple host takes parallel module combined type to connect, and main frame is managed by high pressure (middle pressure) liquid line, gases at high pressure (low-pressure gas) with system end, low-pressure gas (gases at high pressure) manages split type connection.
2. direct-expansion type wind water cooling air-conditioning system according to claim 1, is characterized in that, change working device adopts four-way change-over valve or the assembly of four magnetic valves or the assembly of two electric T-shaped valves or any type of change working device.
3. direct-expansion type wind water cooling air-conditioning system according to claim 1, is characterized in that, air cooling heat exchanger and Cooling and Heat Source heat exchanger serial or parallel connection in systems in which, when both series connection in systems in which time, their share an expansion throttling device; When both parallel connections in systems in which time, they are all with expansion throttling device.
4. direct-expansion type wind water cooling air-conditioning system according to claim 1, it is characterized in that, hot water heat-exchange system and hot air heat exchange system share a public pipe, and it is managed with gases at high pressure (low-pressure gas) respectively by two magnetic valves, low-pressure gas (gases at high pressure) pipe is connected.
5. direct-expansion type wind water cooling air-conditioning system according to claim 1, is characterized in that, domestic hot-water's heat exchanger is with cold-producing medium electric control valve, refrigerant bypass electric control valve.
6. direct-expansion type wind water cooling air-conditioning system according to claim 1, it is characterized in that, with the short valve of domestic hot-water's heat exchanger in system, it is positioned at system host, be contained on the refrigerant line between high pressure (middle pressure) liquid line and low-pressure gas (gases at high pressure) pipe, when working independently for domestic hot-water's heat exchanger, shorten refrigerant circulating path, or when working for domestic hot-water's heat exchanger and end system, adjusting refrigerant flow rate. simultaneously
7. direct-expansion type wind water cooling air-conditioning system according to claim 1, it is characterized in that, Cooling and Heat Source heat exchanger, air cooling heat exchanger are with two valves, and one is contained in that Cooling and Heat Source heat exchanger, air cooling heat exchanger and gases at high pressure (low-pressure gas) are managed, on pipeline between four-way change-over valve condenser inlet; Another is contained on Cooling and Heat Source heat exchanger, pipeline between air cooling heat exchanger and low-pressure gas (gases at high pressure) pipe.
8. direct-expansion type wind water cooling air-conditioning system according to claim 1, is characterized in that, one end of air conditioner cold-heat end system is managed with gases at high pressure (low-pressure gas) respectively by two magnetic valves, low-pressure gas (gases at high pressure) pipe is connected.
9. direct-expansion type wind water cooling air-conditioning system according to claim 1, it is characterized in that, one end of cold and hot air exhaust heat exchange system, cold and hot draining heat-exchange system is managed with gases at high pressure (low-pressure gas) respectively by two magnetic valves, low-pressure gas (gases at high pressure) pipe is connected.
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