CN104879903A - Six-pipe air-conditioning cold and hot water and domestic hot water producing unit - Google Patents

Six-pipe air-conditioning cold and hot water and domestic hot water producing unit Download PDF

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CN104879903A
CN104879903A CN201510299231.1A CN201510299231A CN104879903A CN 104879903 A CN104879903 A CN 104879903A CN 201510299231 A CN201510299231 A CN 201510299231A CN 104879903 A CN104879903 A CN 104879903A
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water
heat exchanger
air
hot
domestic hot
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CN104879903B (en
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荣国华
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荣国华
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/89Arrangement or mounting of control or safety devices
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/30Arrangement or mounting of heat-exchangers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B29/00Combined heating and refrigeration systems, e.g. operating alternately or simultaneously
    • F25B29/003Combined heating and refrigeration systems, e.g. operating alternately or simultaneously of the compression type system

Abstract

The invention belongs to compression type refrigerating units, and discloses a six-pipe air-conditioning cold and hot water and domestic hot water producing unit which comprises an air-conditioning cold water heat exchanger, an air-conditioning hot water heat exchanger, a domestic hot water heat exchanger and an air cooling heat exchanger. The air-conditioning cold water heat exchanger and the air-conditioning hot water heat exchanger are respectively connected with an air-conditioning water system and a cold and heat source water system of a building by water supply and return pipes, water supply and return pipes of the domestic hot water heat exchanger are connected with a domestic hot water system of the building, and the six-pipe air-conditioning cold and hot water and domestic hot water producing unit is provided with the six pipes in total. The six-pipe air-conditioning cold and hot water and domestic hot water producing system has the advantages that air-conditioning chilled water can be provided by the unit in summers, air-conditioning hot water can be provided by the unit in winters, air-conditioning chilled water can be provided by the unit, and accordingly refrigerating requirements of special rooms in the winters can be met; domestic hot water can be provided all year round, condensation heat and different types of excess heat and waste heat of refrigerating systems can be sufficiently recycled, and accordingly obvious energy conservation effects can be realized.

Description

Six control air conditioner cold and hot waters and domestic hot-water's unit
Technical field
The invention belongs to air conditioner refrigerating field, be specifically related to the compression-type refrigeration unit that air conditioner cold and hot water and domestic hot-water are provided.
Background technology
The current compression-type refrigeration unit of air conditioner cold and hot water that provides mostly is wind-cooling type heat pump unit, it has a feed pipe, a return pipe, summer cooling water, Winter heat supply water is the unit of two pipes system, in order to utilize the condensation heat of refrigeration machine, reach energy-conservation object, condensation heat recovery device is equipped with on unit in some producers, provides domestic hot-water, such unit has two air conditioner waters to supply return pipe, i.e. four-pipe system unit for return pipe and two domestic hot-waters.This unit mostly is air-cooled unit, utilize air as cooling source and heat sink, belong to air energy unit, but also have other can supply the Cooling and Heat Source utilized, such as: source, ground, source of sewage, solar energy, open water supply and other waste heat, used heat etc., wherein contain huge energy, air-cooled unit cannot utilize.
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.At present, air-conditioner set is difficult to meet can provide air conditioning hot, can provide again the demand of air conditioning water simultaneously, can only select the unit of more than two, add investment.
Summary of the invention
The object of the present invention is to provide and a kind ofly can provide air conditioning water in summer, air conditioning hot, chilled water can be provided in the winter time again simultaneously, refrigeration unit that the whole year provides domestic hot-water, this unit not only utilizes air energy, can also utilize other Cooling and Heat Source.
Solution of the present invention is: six control air conditioner cold and hot waters and domestic hot-water's unit comprise air conditioner cold water heat exchanger, air conditioning hot heat exchanger, domestic hot-water's heat exchanger, air cooling heat exchanger, compressor, expansion throttling device, servicing unit, refrigerant circulation pipe, cold-producing medium, they are linked in sequence into cycle refrigeration system, air conditioner cold water heat exchanger, air conditioning hot heat exchanger is connected with Cooling and Heat Source water system with the air-conditioner water system of building each via for return pipe, domestic hot-water's heat exchanger is connected with the hot water supply system of building for return pipe, total six roots of sensation pipe, be called six control air conditioner cold and hot waters and domestic hot-water's unit.
When refrigeration system is single cooling system, air conditioner cold water heat exchanger is by being connected with heat source water system with the air-conditioner water system of building for return pipe, and its whole year, as evaporimeter, for air-conditioning system provides chilled water, absorbs the heat energy of indoor heat and thermal source; Air conditioning hot heat exchanger is by being connected with low-temperature receiver water system with the air-conditioner water system of building for return pipe, and its whole year, winter provided hot water for air-conditioning system, and summer can connect low-temperature receiver water system, discharges condensation heat as condenser; Domestic hot-water's heat exchanger is annual as condenser, and recycle refrigeration system condensation heat heating domestic hot water, energy-saving effect is remarkable; When cooling in summer system condensation heat by air conditioning hot heat exchanger and domestic hot-water's heat exchanger cannot discharge completely maybe can not discharge time, remaining or whole condensation heat is discharged into outdoor by air cooling heat exchanger, and the thermic load heating air conditioning hot and domestic hot-water winter inadequate time, or air conditioner cold water heat exchanger and air conditioning hot heat exchanger are when transition season is stopped using, air cooling heat exchanger is converted into evaporimeter, absorb heat in air outdoor, for refrigeration system provides thermic load.
When refrigeration system is heat pump, it is with change working device, and air conditioner cold water heat exchanger is by being connected with the air-conditioner water system of building for return pipe, its summer is as evaporimeter, for air-conditioning system provides chilled water, winter is converted into condenser, for air-conditioning system provides hot water; Air conditioning hot heat exchanger is by being connected with Cooling and Heat Source water system with the air-conditioner water system of building for return pipe, summer is as condenser, by low-temperature receiver water system discharge condensation heat, be converted into evaporimeter winter and provide chilled water for air-conditioning system, absorb the heat energy of indoor heat and thermal source; Domestic hot-water's heat exchanger is annual as condenser, and recycle refrigeration system condensation heat heating domestic hot water, energy-saving effect is remarkable; When the condensation heat of cooling in summer system cannot be discharged completely by air conditioning hot heat exchanger and domestic hot-water's heat exchanger, remaining condensation heat is discharged into outdoor by air cooling heat exchanger, and the thermic load heating air conditioning hot and domestic hot-water winter inadequate time, or air conditioner cold water heat exchanger and air conditioning hot heat exchanger are when transition season is stopped using, air cooling heat exchanger is converted into evaporimeter, absorb heat in air outdoor, for refrigeration system provides thermic load.
Air conditioner cold water heat exchanger, air conditioning hot heat exchanger, domestic hot-water's 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 is evaporation endothermic in air conditioner cold water heat exchanger or air conditioning hot heat exchanger, produce air conditioning water, high temperature and high pressure gaseous refrigerant condensation heat release in air conditioning hot heat exchanger, air conditioner cold water heat exchanger, domestic hot-water's heat exchanger, adds hot cooling water, running water.Air cooling heat exchanger is air-cooled direct-expansion type heat exchanger, and cold-producing medium and outdoor air 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, can adopt the heat exchanger of the forms such as finned coil.Refrigeration system is varying capacity system, and compressor adopts variable conpacitance compressor, to adapt to the change of refrigeration system cooling and heating load.Unit is placed on indoor or outdoors, and when being placed on indoor, air cooling heat exchanger is placed on outdoor, combines with unit split type connection; When unit is placed on outdoor, all component combinations together, for monoblock type connects combination, but will take antifreezing measures.
The above beneficial effect of the invention is: adopt a unit, summer cooling, and Winter heat supply again can simultaneously cooling, and the whole year provides domestic hot-water, abundant recovering condensing heat, utilizes waste heat, used heat, and energy-saving effect is remarkable, reduces equipment investment.
Accompanying drawing explanation
Fig. 1 is the system diagram of single cold parallel unit
Fig. 2 is the system diagram of single cold tandem unit
Fig. 3 is the system diagram of single cold series-parallel unit
Fig. 4 is the system diagram of another kind of single cold series-parallel unit
Fig. 5 is the system diagram of the parallel unit of heat pump
Fig. 6 is the system diagram of heat pump tandem unit
Fig. 7 is the system diagram of another kind of heat pump tandem unit
Fig. 8 is the system diagram of the heat pump tandem unit adopting two-way expansion throttling device
Description of reference numerals:
1, compressor, 2, oil eliminator, 3, oil return capillary, 4, domestic hot-water's heat exchanger, 5, air conditioning hot heat exchanger, 6, air cooling heat exchanger, 7,8,9,10,17, electric control valve, 11,12,20,21, magnetic valve, 13, reservoir, 14, device for drying and filtering, 15, show liquid mirror, 16, expansion throttling device, 18, air conditioner cold water heat exchanger, 19, gas-liquid separator, 22,23, four-way change-over valve, 24,25,26,27, check valve
concrete implementing method
Fig. 1 is single cooling system, air conditioner cold water heat exchanger 18 whole year is as evaporimeter, be connected by two air-conditioner water systems for return pipes and building, thermal source (as: source, source of sewage, open water supply, solar energy, various waste heat, used heat etc.) water system, for indoor air-conditioning system provides chilled water, winter absorbs heat from thermal source; Air conditioning hot heat exchanger 5 whole year is as condenser, be connected by two air-conditioner water systems for return pipes and building, low-temperature receiver (as: cooling tower, Di Yuan, source of sewage, open water supply etc.) water system, for indoor air-conditioning system provides air conditioning hot winter, summer discharges condensation heat to low-temperature receiver; Domestic hot-water's heat exchanger 4 provides domestic hot-water for return pipe for building by two as condenser the whole year; Air cooling heat exchanger 6 summer, summer, winter or transition season absorbed heat outdoor as evaporimeter as condenser to outdoor heat extraction; In refrigeration systems, electric control valve 7,8,9,10,17 regulates the flow of cold-producing medium for domestic hot-water's heat exchanger 4, air conditioning hot heat exchanger 5, air cooling heat exchanger 6 parallel connection, maintains the balance of system.
During cooling in summer system works, refrigerant circulating process is: compressor 1 → oil eliminator 2, then three tunnels are divided, one tunnel → electric control valve 7 → domestic hot-water heat exchanger 4, another road → electric control valve 8 → air conditioning hot heat exchanger 5, three tunnel → electric control valve 9 → air cooling heat exchanger 6 → magnetic valve 12, three tunnel converges → reservoir 13 → device for drying and filtering 14 → show liquid mirror 15 → expansion throttling device 16 → electric control valve 17 → air conditioner cold water heat exchanger 18 → gas-liquid separator 19 → compressor 1.Now, electric control valve 10, magnetic valve 11 are closed, the aperture of electric control valve 7,8,9 is regulated by automatic control system at random according to the load variations of domestic hot-water's heat exchanger 4, air conditioning hot heat exchanger 5, the condensation heat of refrigeration system is discharged in the low-temperature receivers such as running water, cooling tower, Di Yuan, source of sewage, open water supply by domestic hot-water's heat exchanger 4, air conditioning hot heat exchanger 5, when condensation heat cannot be emitted by domestic hot-water's heat exchanger 4, air conditioning hot heat exchanger 5, part or all condensation heat is discharged in air by air cooling heat exchanger 6.
Above-mentioned cyclic process, unit, when providing air conditioning water, provides domestic hot-water simultaneously; When only needing air conditioning water, when not needing domestic hot-water, close electric control valve 7; When not needing air conditioning water, when only needing domestic hot-water, close electric control valve 8,9,17, magnetic valve 12, open electric control valve 7,10, magnetic valve 11, or when there being sufficient thermal source, open electric control valve 7,17, close electric control valve 8,9,10, magnetic valve 11,12, air cooling heat exchanger 6 does not work, and air conditioner cold water heat exchanger 18 absorbs heat from thermal source, for life hot water heat exchanger 4 provides heat energy.
During winter refrigeration system works, refrigerant circulating process is: compressor 1 → oil eliminator 2, then two-way is divided, one tunnel → electric control valve 7 → domestic hot-water heat exchanger 4, another road → electric control valve 8 → air conditioning hot heat exchanger 5, two-way converges → reservoir 13 → device for drying and filtering 14 → show liquid mirror 15 → expansion throttling device 16, then two-way is divided, one tunnel → electric control valve 10 → air cooling heat exchanger 6 → magnetic valve 11, another road → electric control valve 17 → air conditioner cold water heat exchanger 18, two-way converges → gas-liquid separator 19 → compressor 1.Now, electric control valve 9, magnetic valve 12 cuts out, electric control valve 7, 8, 10, the aperture of 17 is according to domestic hot-water's heat exchanger 4, air conditioning hot heat exchanger 5, the load variations of air conditioner cold water heat exchanger 18 is regulated at random by automatic control system, air conditioner cold water heat exchanger 18 and air cooling heat exchanger 6 are all evaporimeter, both parallel connections in refrigeration systems, when the refrigeration duty of air conditioner cold water heat exchanger 18 is lower, air cooling heat exchanger 6 converts evaporimeter to and absorbs heat from air, meet part or all thermal load demands of refrigeration system, air conditioner cold water heat exchanger 18 winter provides air conditioning water for indoor air-conditioning system, while absorbing indoor heat, also can with other thermal source (as: source, source of sewage, open water supply, solar energy, various waste heat, used heat etc.) water system be connected, from wherein absorbing heat.
Above-mentioned cyclic process, unit, when providing air conditioning hot, chilled water, provides domestic hot-water simultaneously; When only needing air conditioning hot, chilled water, when not needing domestic hot-water, close electric control valve 7; When not needing air conditioning hot, chilled water, when only needing domestic hot-water, close electric control valve 8,9,17, magnetic valve 12, open electric control valve 7,10, magnetic valve 11, or when there being sufficient thermal source, open electric control valve 7,17, close electric control valve 8,9,10, magnetic valve 11,12, air cooling heat exchanger 6 does not work, and air conditioner cold water heat exchanger 18 absorbs heat from thermal source; When only needing air conditioning hot, domestic hot-water, when not needing air conditioning water, close electric control valve 9,17, magnetic valve 12, open electric control valve 7,8,10, magnetic valve 11, or when there being sufficient thermal source, open electric control valve 7,8,17, close electric control valve 9,10, magnetic valve 11,12, air cooling heat exchanger 6 does not work, and air conditioner cold water heat exchanger 18 absorbs heat from thermal source; When only needing air conditioning hot, when not needing domestic hot-water, chilled water, close electric control valve 7,9,17, magnetic valve 12, open electric control valve 8,10, magnetic valve 11, or when there being sufficient thermal source, open electric control valve 8,17, close electric control valve 7,9,10, magnetic valve 11,12, air cooling heat exchanger 6 does not work, and air conditioner cold water heat exchanger 18 absorbs heat from thermal source.
When transition season refrigeration system produces domestic hot-water, refrigerant circulating process is: compressor 1 → oil eliminator 2 → electric control valve 7 → domestic hot-water heat exchanger 4 → reservoir 13 → device for drying and filtering 14 → show liquid mirror 15 → expansion throttling device 16 → electric control valve 10 → air cooling heat exchanger 6 → magnetic valve 11 → gas-liquid separator 19 → compressor 1.Now, domestic hot-water produced by domestic hot-water's heat exchanger 4, air conditioner cold water heat exchanger 18, air conditioning hot heat exchanger 5 do not work, electric control valve 8,9,17, magnetic valve 12 cuts out, air cooling heat exchanger 6 converts evaporimeter to and absorbs heat from air, meets refrigeration system and produces thermic load needed for domestic hot-water.Therefore in summer or winter, even if air conditioner cold water heat exchanger 18, air conditioning hot heat exchanger 5 do not work, as long as air cooling heat exchanger 6 can convert evaporimeter to, refrigeration system just can produce domestic hot-water.When summer or transition season thermal source have sufficient heat energy to utilize, air conditioner cold water heat exchanger 18, as evaporimeter, can absorb heat from thermal source, for life hot water heat exchanger 4 provides heat energy.When indivedual rooms to need cooling the whole year, still to provide air conditioning water at transition season air conditioner cold water heat exchanger 18, also provide heat energy for life hot water heat exchanger 4 simultaneously.
Above-mentioned Cooling and Heat Source water system is connected with the return pipe that supplies of air conditioner cold water heat exchanger 18, air conditioning hot heat exchanger 5, also be connected with the air-conditioner water system of building simultaneously, usually two kinds of connected modes are taked: connected directly or indirectly, according to the operating mode of air conditioner cold water heat exchanger 18, air conditioning hot heat exchanger 5 and cold and hot matchmaker's feature of Cooling and Heat Source, select directly to connect or indirectly connect.When Cooling and Heat Source is source of sewage, open water supply, its water quality inferiority, can not be delivered directly in air conditioner cold water heat exchanger 18, air conditioning hot heat exchanger 5, a water-to-water heat exchanger must be increased, the confession return pipe of air conditioner cold water heat exchanger 18, air conditioning hot heat exchanger 5 is coupled, sewage, natural water enter wherein, and with the recirculated water heat exchange from air conditioner cold water heat exchanger 18, air conditioning hot heat exchanger 5, this is indirect connection, when Cooling and Heat Source is source, ground, quality of groundwater is better, air conditioner cold water heat exchanger 18 can be delivered directly to, heat exchange is carried out in air conditioning hot heat exchanger 5, directly can be connected with air conditioning hot heat exchanger 5, condensation heat is discharged for summer, due to winter air-conditioning cold-water heat exchanger 18 for the air-conditioner water system of building provides chilled water, by the heat energy in the indirect absorption chamber of indoor end air-conditioner, absorb the heat energy of source, ground underground water again simultaneously, also a water-to-water heat exchanger must be increased, air conditioner cold water heat exchanger 18 is made to form indirect connection with water source system, a closed circulation system is formed between this three.
In Fig. 2, domestic hot-water's heat exchanger 4, air conditioning hot heat exchanger 5, air cooling heat exchanger 6 are connected in refrigeration systems.
During cooling in summer system works, refrigerant circulating process is: compressor 1 → oil eliminator 2 → domestic hot-water heat exchanger 4 → air conditioning hot heat exchanger 5 → magnetic valve 20 → air cooling heat exchanger 6 → magnetic valve 12 → reservoir 13 → device for drying and filtering 14 → show liquid mirror 15 → expansion throttling device 16 → electric control valve 17 → air conditioner cold water heat exchanger 18 → gas-liquid separator 19 → compressor 1, now, electric control valve 10, magnetic valve 11, 21 close, when condensation of refrigerant heat can pass through domestic hot-water's heat exchanger 4, when air conditioning hot heat exchanger 5 emits, air cooling heat exchanger 6 quits work, magnetic valve 20 cuts out, magnetic valve 21 is opened, cold-producing medium directly enters reservoir 13.
During winter refrigeration system works, refrigerant circulating process is: compressor 1 → oil eliminator 2 → domestic hot-water heat exchanger 4 → air conditioning hot heat exchanger 5 → magnetic valve 21 → reservoir 13 → device for drying and filtering 14 → show liquid mirror 15 → expansion throttling device 16, then two-way is divided, No. one electric control valve 10 → air cooling heat exchanger 6 → magnetic valve 11, another road → electric control valve 17 → air conditioner cold water heat exchanger 18, two-way converges → gas-liquid separator 19 → compressor 1.Now, magnetic valve 12,20 cuts out, the aperture of electric control valve 10,17 is regulated by automatic control system at random according to the load variations of air conditioner cold water heat exchanger 18, air conditioner cold water heat exchanger 18 and air cooling heat exchanger 6 are all evaporimeter, both parallel connections in refrigeration systems, when the refrigeration duty of air conditioner cold water heat exchanger 18 is lower, air cooling heat exchanger 6 converts evaporimeter to and absorbs heat from air, meets part or all thermal load demands of refrigeration system.
During transition season refrigeration system hot water preparing, refrigerant circulating process is: compressor 1 → oil eliminator 2 → domestic hot-water heat exchanger 4 → air conditioning hot heat exchanger 5 → magnetic valve 21 → reservoir 13 → device for drying and filtering 14 → show liquid mirror 15 → expansion throttling device 16 → electric control valve 10 → air cooling heat exchanger 6 → magnetic valve 11 → gas-liquid separator 19 → compressor 1.Now, domestic hot-water produced by domestic hot-water's heat exchanger 4, and air conditioner cold water heat exchanger 18, air conditioning hot heat exchanger 5 do not work, magnetic valve 12,20, electric control valve 17 cuts out, air cooling heat exchanger 6 converts evaporimeter to and absorbs heat from air, meets refrigeration system and produces thermic load needed for domestic hot-water.
In Fig. 3, domestic hot-water's heat exchanger 4 is in parallel with air conditioning hot heat exchanger 5 in refrigeration systems, then connect in refrigeration systems with air cooling heat exchanger 6, in Fig. 4, air conditioning hot heat exchanger 5 is in parallel with air cooling heat exchanger 6 in refrigeration systems, then connect in refrigeration systems with domestic hot-water's heat exchanger 4, or domestic hot-water's heat exchanger 4 is in parallel with air cooling heat exchanger 6 in refrigeration systems, then connect in refrigeration systems with air conditioning hot heat exchanger 4, be called series and parallel combined connection, in three, wherein two persons in parallel are with the electric control valve of adjusting refrigerant flow rate, its operation principle is with reference to figure 1, Fig. 2.
In Fig. 5, refrigeration system is with the first four-way change-over valve 22 and the second four-way change-over valve 23, air conditioner cold water heat exchanger 18, air conditioning hot heat exchanger 5, air cooling heat exchanger 6 can realize the exchange of evaporimeter and condenser, system can carry out freezing, heating condition conversion, and such refrigeration system is heat pump.Domestic hot-water's heat exchanger 4 is contained between compressor 1 exhaust outlet and the first four-way change-over valve 22, and its whole year, as condenser, provides domestic hot-water for return pipe for building by two.Air conditioning hot heat exchanger 5 is in parallel with air cooling heat exchanger 6 in refrigeration systems, two confession return pipes of air conditioner cold water heat exchanger 18 are connected with the air-conditioner water system of building, heat source water system, it is as evaporimeter, summer for building air-conditioning system chilled water is provided, summer or transition season absorb heat from thermal source, for heating domestic hot water, be converted into winter condenser for building air-conditioning system hot water is provided.Two confession return pipes of air conditioning hot heat exchanger 5 are connected with the air-conditioner water system of building, Cooling and Heat Source (as: cooling tower, Di Yuan, source of sewage, open water supply, solar energy, various waste heat, used heat etc.) system, summer discharges condensation heat as condenser to low-temperature receiver, and being converted into evaporimeter winter provides chilled water to the air-conditioning system of building, absorb heat from thermal source.
Cooling in summer cooling system circulation time, refrigerant circulating process is: compressor 1 → oil eliminator 2 → domestic hot-water heat exchanger 4 → four-way change-over valve 22, then two-way is divided, one tunnel → electric control valve 8 → air conditioning hot heat exchanger 5, another road → electric control valve 9 → air cooling heat exchanger 6, two-way converges → four-way change-over valve 23 → reservoir 13 → device for drying and filtering 14 → show liquid mirror 15 → expansion throttling device 16 → four-way change-over valve 23 → air conditioner cold water heat exchanger 18 → gas-liquid separator 19 → compressor 1.The aperture of electric control valve 8,9 is regulated by automatic control system at random according to the load variations of air conditioning hot heat exchanger 5, air cooling heat exchanger 6, two of air conditioning hot heat exchanger 5 are connected with low-temperature receiver (as: cooling tower, Di Yuan, source of sewage, open water supply etc.) system for return pipe, discharge condensation heat.When condensation heat cannot be emitted by domestic hot-water's heat exchanger 4, air conditioning hot heat exchanger 5, part or all condensation heat is discharged in air by air cooling heat exchanger 6.
Above-mentioned cyclic process, unit, when providing air conditioning water, provides domestic hot-water simultaneously; When only needing air conditioning water, when not needing domestic hot-water, close the recirculated water valve on domestic hot-water's heat exchanger 4; When not needing air conditioning water, when only needing domestic hot-water, four-way change-over valve 22,23 commutates, electric control valve 8,9 is opened, air conditioning hot heat exchanger 5, air cooling heat exchanger 6 convert evaporimeter to, absorb heat from thermal source and air, or air conditioning hot heat exchanger 5, air cooling heat exchanger 6 do not work, air conditioner cold water heat exchanger 18 absorbs heat from thermal source as evaporimeter, for life hot water heat exchanger 4 provides thermal source.
Winter refrigeration system heats circulation time, four-way change-over valve 22, 23 commutations, air conditioning hot heat exchanger 5, air cooling heat exchanger 6 is converted into evaporimeter, air conditioner cold water heat exchanger 18 is converted into condenser, refrigerant circulating process is: compressor 1 → oil eliminator 2 → domestic hot-water heat exchanger 4 → four-way change-over valve 22 → air conditioner cold water heat exchanger 18 → four-way change-over valve 23 → reservoir 13 → device for drying and filtering 14 → show liquid mirror 15 → expansion throttling device 16 → four-way change-over valve 23, then two-way is divided, one tunnel → air conditioning hot heat exchanger 5 → electric control valve 8, another road → air cooling heat exchanger 6 → electric control valve 9, two-way converges → four-way change-over valve 22 → gas-liquid separator 19 → compressor 1.The aperture of electric control valve 8,9 is regulated by automatic control system at random according to the load variations of air conditioning hot heat exchanger 5, air cooling heat exchanger 6, when the refrigeration duty of air conditioning hot heat exchanger 5 is lower, air cooling heat exchanger 6 converts evaporimeter to and absorbs heat from air, meet part or all thermal load demands of refrigeration system, air conditioning hot heat exchanger 5 provides chilled water to the air-conditioning system of building, also can be connected, from wherein absorbing heat with other thermal source (as: source, source of sewage, open water supply, solar energy, various used heat etc.) system.
Above-mentioned cyclic process, unit, when providing air conditioning hot, chilled water, provides domestic hot-water simultaneously; When only needing air conditioning hot, chilled water, when not needing domestic hot-water, close the recirculated water valve on domestic hot-water's heat exchanger 4; When not needing air conditioning hot, chilled water, when only needing domestic hot-water, air conditioner cold water heat exchanger 18 stops supplying water, and air conditioning hot heat exchanger 5 absorbs heat from thermal source, air cooling heat exchanger 6 absorbs heat from air; When only needing air conditioning hot, domestic hot-water, when not needing chilled water, air conditioning hot heat exchanger 5 absorbs heat from thermal source, air cooling heat exchanger 6 absorbs heat from air; When only needing air conditioning hot, when not needing chilled water, domestic hot-water, close the recirculated water valve on domestic hot-water's heat exchanger 4, air conditioning hot heat exchanger 5 absorbs heat from thermal source, air cooling heat exchanger 6 absorbs heat from air.
Transition season refrigeration system heats circulation time, four-way change-over valve 22,23 commutates, air conditioning hot heat exchanger 5, air cooling heat exchanger 6 are converted into evaporimeter, air conditioner cold water heat exchanger 18 is converted into condenser, and refrigerant circulating process is: compressor 1 → oil eliminator 2 → domestic hot-water heat exchanger 4 → four-way change-over valve 22 → air conditioner cold water heat exchanger 18 → four-way change-over valve 23 → reservoir 13 → device for drying and filtering 14 → show liquid mirror 15 → expansion throttling device 16 → four-way change-over valve 23 → air cooling heat exchanger 6 → electric control valve 9 → four-way change-over valve 22 → gas-liquid separator 19 → compressor 1.Now, domestic hot-water produced by domestic hot-water's heat exchanger 4, air conditioner cold water heat exchanger 18, air conditioning hot heat exchanger 5 do not work, electric control valve 8 cuts out, air cooling heat exchanger 6 converts evaporimeter to and absorbs heat from air, meets refrigeration system and produces thermic load needed for domestic hot-water, when there being used heat water source to utilize, air conditioning hot heat exchanger 5 works, and absorbs heat from waste water.When summer or transition season thermal source have sufficient heat energy to utilize, air conditioner cold water heat exchanger 18, as evaporimeter, can absorb heat from thermal source, for life hot water heat exchanger 4 provides heat energy.When indivedual rooms to need cooling the whole year, still to provide air conditioning water at transition season air conditioner cold water heat exchanger 18, also provide heat energy for life hot water heat exchanger 4 simultaneously.
In Fig. 6, Fig. 7, air conditioning hot heat exchanger 5, air cooling heat exchanger 6 are connected in refrigeration systems.In Fig. 7, four-way change-over valve 23 is replaced by check valve 24,25,26,27, also has the change working device of other form.
In above-described embodiment, expansion throttling device 16 is unidirectional expansion throttling device, when it is two-way expansion throttling device, four-way change-over valve 23 in Fig. 5,6,7 and check valve 24,25,26,27 can be cancelled, only establish a four-way change-over valve 22, see Fig. 8, system simplifies more.
In sum, summer of the present invention provides air conditioning water, also can provide air conditioning water while providing air conditioning hot winter, and the whole year can provide domestic hot-water, and fully recycle condensation heat and various waste heat, the used heat of refrigeration system, energy-saving effect is remarkable.When this unit provides air conditioning water and hot water at the same time, there is provided domestic hot-water simultaneously, or when air conditioning water is provided separately, provide domestic hot-water, or when air conditioning hot is provided separately simultaneously, there is provided domestic hot-water simultaneously, or when air conditioning water and hot water are provided, do not provide domestic hot-water simultaneously, or provide air conditioning water separately, or provide air conditioning hot separately, or provide domestic hot-water separately.
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 (8)

1. six control air conditioner cold and hot waters and domestic hot-water's unit comprise air conditioner cold water heat exchanger, air conditioning hot heat exchanger, domestic hot-water's heat exchanger, air cooling heat exchanger, compressor, expansion throttling device, servicing unit, refrigerant circulation pipe, cold-producing medium, they are linked in sequence into cycle refrigeration system, it is characterized in that, refrigeration system is single cooling system, air conditioner cold water heat exchanger, air conditioning hot heat exchanger, domestic hot-water's heat exchanger are water-cooled heat exchanger, and cold-producing medium and recirculated water carry out heat exchange; Air cooling heat exchanger is air-cooled direct-expansion type heat exchanger, and cold-producing medium and outdoor air carry out heat exchange; The confession return pipe of air conditioner cold water heat exchanger is connected with the air-conditioner water system of building, heat source water system, the confession return pipe of air conditioning hot heat exchanger is connected with the air-conditioner water system of building, low-temperature receiver water system, being connected with the hot water supply system of building for return pipe of domestic hot-water's heat exchanger; Air conditioner cold water heat exchanger is as evaporimeter, and the whole year provides chilled water for air-conditioning system, absorbs heat energy indoor with in thermal source; Air conditioning hot heat exchanger is as condenser, and winter provides hot water for air-conditioning system, and summer discharges condensation heat in low-temperature receiver; Domestic hot-water's heat exchanger is as condenser, and the whole year provides domestic hot-water; Air cooling heat exchanger discharges condensation heat as condenser summer in air, and summer or winter or transition season are converted to evaporimeter, absorb heat from air, imports and exports valve pipeline being equipped with condenser and evaporimeter and mutually changing at air cooling heat exchanger cold-producing medium; In parallel or the series connection of domestic hot-water's heat exchanger, air conditioning hot heat exchanger, air cooling heat exchanger or series and parallel combined connection are in refrigeration systems; When this unit provides air conditioning water and hot water at the same time, there is provided domestic hot-water simultaneously, or when air conditioning water is provided separately, provide domestic hot-water, or when air conditioning hot is provided separately simultaneously, there is provided domestic hot-water simultaneously, or when air conditioning water and hot water are provided, do not provide domestic hot-water simultaneously, or provide air conditioning water separately, or provide air conditioning hot separately, or provide domestic hot-water separately.
2. six control air conditioner cold and hot waters and domestic hot-water's unit comprise air conditioner cold water heat exchanger, air conditioning hot heat exchanger, domestic hot-water's heat exchanger, air cooling heat exchanger, compressor, expansion throttling device, servicing unit, refrigerant circulation pipe, cold-producing medium, they are linked in sequence into cycle refrigeration system, it is characterized in that, refrigeration system is heat pump, with change working device, air conditioner cold water heat exchanger, air conditioning hot heat exchanger, domestic hot-water's heat exchanger are water-cooled heat exchanger, and cold-producing medium and recirculated water carry out heat exchange; Air cooling heat exchanger is air-cooled direct-expansion type heat exchanger, and cold-producing medium and outdoor air carry out heat exchange; The confession return pipe of air conditioner cold water heat exchanger is connected with the air-conditioner water system of building, Cooling and Heat Source water system, the confession return pipe of air conditioning hot heat exchanger is connected with the air-conditioner water system of building, Cooling and Heat Source water system, being connected with the hot water supply system of building for return pipe of domestic hot-water's heat exchanger; Air conditioner cold water heat exchanger summer or transition season, as evaporimeter, for air-conditioning system provides chilled water, or absorb heat from thermal source, are converted to condenser winter for air-conditioning system and provide hot water; Air conditioning hot heat exchanger discharges condensation heat as condenser summer in low-temperature receiver, and winter or transition season are converted to evaporimeter, for air-conditioning system provides chilled water, absorbs heat energy indoor with in thermal source; Domestic hot-water's heat exchanger is as condenser, and the whole year provides domestic hot-water; Air cooling heat exchanger discharges condensation heat as condenser summer in air, and summer or winter or transition season are converted to evaporimeter, absorb heat from air; Domestic hot-water's heat exchanger is contained on the refrigerant tubing between exhaust outlet of compressor and the first four-way change-over valve, and air conditioning hot heat exchanger is in parallel with air cooling heat exchanger or connect in refrigeration systems; When this unit provides air conditioning water and hot water at the same time, there is provided domestic hot-water simultaneously, or when air conditioning water is provided separately, provide domestic hot-water, or when air conditioning hot is provided separately simultaneously, there is provided domestic hot-water simultaneously, or when air conditioning water and hot water are provided, do not provide domestic hot-water simultaneously, or provide air conditioning water separately, or provide air conditioning hot separately, or provide domestic hot-water separately.
3. six control air conditioner cold and hot waters according to claim 1 and domestic hot-water's unit, it is characterized in that, when domestic hot-water's heat exchanger, air conditioning hot heat exchanger, air cooling heat exchanger are connected in parallel in refrigeration systems, they are all with the electric control valve of adjusting refrigerant flow rate; When domestic hot-water's heat exchanger, air conditioning hot heat exchanger, the series and parallel combined connection of air cooling heat exchanger in refrigeration systems time, wherein two persons in parallel are all with the electric control valve of adjusting refrigerant flow rate.
4. six control air conditioner cold and hot waters according to claim 1 and domestic hot-water's unit, it is characterized in that, when air conditioner cold water heat exchanger, air cooling heat exchanger are all evaporimeter, in refrigeration systems, they are all with the electric control valve of adjusting refrigerant flow rate in both parallel connections.
5. six control air conditioner cold and hot waters according to claim 2 and domestic hot-water's unit, is characterized in that, when air conditioning hot heat exchanger in parallel with air cooling heat exchanger in refrigeration systems time, they are all with the electric control valve of adjusting refrigerant flow rate.
6. six control air conditioner cold and hot waters according to claim 2 and domestic hot-water's unit, is characterized in that, when the expansion throttling device in refrigeration system is two-way expansion throttling device, refrigeration system only establishes a four-way change-over valve.
7. six control air conditioner cold and hot waters according to claim 1 and 2 and domestic hot-water's unit, is characterized in that, the connection of air conditioner cold water heat exchanger, air conditioning hot heat exchanger and Cooling and Heat Source is taked connected directly or indirectly.
8. six control air conditioner cold and hot waters according to claim 1 and 2 and domestic hot-water's unit, is characterized in that, unit adopts monoblock type to connect combination or split type connection combination.
CN201510299231.1A 2015-04-30 2015-06-03 Six control air conditioner cold and hot waters and domestic hot-water's unit Active CN104879903B (en)

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Publication number Priority date Publication date Assignee Title
KR20040065450A (en) * 2003-01-14 2004-07-22 문영치 Heating, cooling and hot water supply system with heat pump
CN1637352A (en) * 2003-12-30 2005-07-13 三星电子株式会社 Complex refrigerating and heating system
CN102914083A (en) * 2012-11-20 2013-02-06 巢民强 Air-cooling water-cooling compound domestic hot/cold water integral central air-conditioning unit
CN202835913U (en) * 2012-08-23 2013-03-27 多路发环境净化技术(福建)有限公司 Cold and hot water air conditioner
CN103900184A (en) * 2014-04-25 2014-07-02 荣国华 Water cooling medium three-pipe refrigerating and heating air-conditioning system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040065450A (en) * 2003-01-14 2004-07-22 문영치 Heating, cooling and hot water supply system with heat pump
CN1637352A (en) * 2003-12-30 2005-07-13 三星电子株式会社 Complex refrigerating and heating system
CN202835913U (en) * 2012-08-23 2013-03-27 多路发环境净化技术(福建)有限公司 Cold and hot water air conditioner
CN102914083A (en) * 2012-11-20 2013-02-06 巢民强 Air-cooling water-cooling compound domestic hot/cold water integral central air-conditioning unit
CN103900184A (en) * 2014-04-25 2014-07-02 荣国华 Water cooling medium three-pipe refrigerating and heating air-conditioning system

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