CN110440352A - A kind of multiple refrigerated air-conditioning system with double Cooling and Heat Sources - Google Patents

A kind of multiple refrigerated air-conditioning system with double Cooling and Heat Sources Download PDF

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Publication number
CN110440352A
CN110440352A CN201910741066.9A CN201910741066A CN110440352A CN 110440352 A CN110440352 A CN 110440352A CN 201910741066 A CN201910741066 A CN 201910741066A CN 110440352 A CN110440352 A CN 110440352A
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CN
China
Prior art keywords
heat exchanger
cooling
water cooling
air
conditioning system
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Pending
Application number
CN201910741066.9A
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Chinese (zh)
Inventor
刘益才
漆石球
方挺
杨焕弟
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Guangdong Chigo Heating and Ventilation Equipment Co Ltd
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Guangdong Chigo Heating and Ventilation Equipment Co Ltd
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Priority to CN201910741066.9A priority Critical patent/CN110440352A/en
Publication of CN110440352A publication Critical patent/CN110440352A/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/06Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the arrangements for the supply of heat-exchange fluid for the subsequent treatment of primary air in the room units
    • F24F3/065Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the arrangements for the supply of heat-exchange fluid for the subsequent treatment of primary air in the room units with a plurality of evaporators or condensers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00Air-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
    • F24F5/0046Air-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 using natural energy, e.g. solar energy, energy from the ground
    • 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
    • F25B41/00Fluid-circulation arrangements
    • 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
    • F25B41/00Fluid-circulation arrangements
    • F25B41/20Disposition of valves, e.g. of on-off valves or flow control valves
    • 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
    • F25B41/00Fluid-circulation arrangements
    • F25B41/30Expansion means; Dispositions thereof
    • F25B41/31Expansion valves

Abstract

The invention discloses a kind of multiple refrigerated air-conditioning systems with double Cooling and Heat Sources, including the refrigerant circulation loop being made of compressor, outdoor air-cooled heat exchanger, multi-joint indoor heat exchanger and four-way valve, it further include the water cooling heat source module on series connection access refrigerant circulation loop, wherein, both the water cooling heat source module and outdoor air-cooled heat exchanger, which match, constitutes the Cooling and Heat Source of refrigerated air-conditioning system, and Cooling and Heat Source of any one or two in water cooling heat source module and outdoor air-cooled heat exchanger as refrigerated air-conditioning system operation when can be selected;The water cooling heat source module includes the water cooling heat exchanger of series connection access refrigerant circulation loop and the auxiliary water cooling Cooling and Heat Source with water cooling heat exchanger composition Water-cooling circulating loop, positional relationship of the water cooling heat exchanger on refrigerant circulation loop is adjusted to enable water cooling heat exchanger have pre-cooling/or again cold/or supercooling function in cooling mode, and in a heating mode correspondingly with reheating/or preheating/or medium temperature vaporization function.

Description

A kind of multiple refrigerated air-conditioning system with double Cooling and Heat Sources
Technical field
The present invention relates to the technical fields of air-conditioning system, refer in particular to a kind of multiple refrigeration air-conditioner with double Cooling and Heat Sources System.
Background technique
It is exactly to need to improve the heating capacity in its winter and use model that present coal, which changes the premise that motor group is able to largely use, It encloses, in addition, conventional multiple refrigeration air-conditioning unit host is usually arranged together, it appears more concentrate, be generally all layed in On the balcony of each floor, or the roofing for being placed in attic or annex is concentrated, intensive in this way puts, and will lead to air conditioner condensation Device heat dissipation effect is very poor, forms tropical island effect, seriously affects the use of air-conditioning;There are also be exactly outdoor condenser working noise compared with Greatly, blower, which runs at high speed, can generate excessive mechanical flow noise and air hydrodynamic noise, be unfavorable for environmental protection, therefore, the present invention With regard to proposing a kind of multiple refrigerated air-conditioning system of double Cooling and Heat Sources of band, there is better energy-saving effect.
Summary of the invention
Existing heat pump winter is easy frosting, continuous heating time not long (being usually no more than 30 minutes), heating comfort level one As;Inefficient under summer high-temperature operating condition and general operating condition, the realistic problems such as the vast rural areas small coal heating transformation mention It is a kind of out to be both able to maintain indoor unit continuous heating, while existing Cooling and Heat Source is made full use of, it is whole to improve continuous heating time, height The multiple refrigeration air-conditioner with double Cooling and Heat Sources that the multiple functions such as warm operating condition refrigerating efficiency and raising air-supply comfort are integrated System.
In order to achieve the above purpose, a kind of multiple refrigeration air-conditioner system with double Cooling and Heat Sources provided by the present invention System, including the refrigerant circulation loop being made of compressor, outdoor air-cooled heat exchanger, multi-joint indoor heat exchanger and four-way valve, also Including the water cooling heat source module on series connection access refrigerant circulation loop, wherein the water cooling heat source module air-cooled is changed with outdoor Both hot devices, which match, constitutes the Cooling and Heat Source of refrigerated air-conditioning system, can be selected in water cooling heat source module and outdoor air-cooled heat exchanger Cooling and Heat Source when being run as refrigerated air-conditioning system of any one or two;The water cooling heat source module includes series connection access system The water cooling heat exchanger of refrigerant cycle loop and the auxiliary water cooling Cooling and Heat Source that Water-cooling circulating loop is formed with water cooling heat exchanger, adjust institute State positional relationship of the water cooling heat exchanger on refrigerant circulation loop with enable water cooling heat exchanger have in cooling mode pre-cooling/or Cold again/or supercooling function, and in a heating mode correspondingly with reheating/or preheating/or medium temperature vaporization function.
Further, when the water cooling heat exchanger is series between the interface c of four-way valve and outdoor air-cooled heat exchanger, at this time Water cooling heat exchanger have pre-cooling function in cooling mode, and in a heating mode have reheat function.
Further, when the water cooling heat exchanger is series between outdoor air-cooled heat exchanger and multi-joint indoor heat exchanger and is closed on When being arranged in outdoor air-cooled heat exchanger one end, water cooling heat exchanger at this time has again cold function in cooling mode, and is heating Pre- heat function is had under mode.
Further, when the water cooling heat exchanger is series between outdoor air-cooled heat exchanger and multi-joint indoor heat exchanger and is closed on When being arranged in multi-joint indoor heat exchanger one end, water cooling heat exchanger at this time has supercooling function in cooling mode, and is heating Medium temperature vaporization function is had under mode.
It further, further include the compressor between outdoor air-cooled heat exchanger and multi-joint indoor heat exchanger and being serially connected Drive module refrigerating module and subcooler, wherein the subcooler is connected with multi-joint indoor heat exchanger one end;The compressor Drive module refrigerating module is connected with outdoor air-cooled heat exchanger one end.
It further, further include gs-oil separator, wherein the gs-oil separator is set to the compressor air-discharging end and four-way Between the interface a of valve.
It further, further include gas-liquid separator, wherein described gas-liquid separator one end is connected with the air return end of compressor It is logical, and the other end is connected with the interface d of the supercooling output port of subcooler 8 and four-way valve respectively, wherein it is described
It further, further include between outdoor air-cooled heat exchanger and driven compressor module refrigerating module and in parallel arrangement Solenoid valve and expansion valve.
Further, the first shut-off valve is equipped between the subcooler and multi-joint indoor heat exchanger.
Further, the second shut-off valve is equipped between the interface d and multi-joint indoor heat exchanger of the four-way valve.
The present invention uses above-mentioned scheme, the beneficial effect is that: the present invention using increased a set of new Cooling and Heat Source and Water cooling heat exchanger greatly improves the cooling and warming ability and Energy Efficiency Ratio of system, and system maintenance work amount greatly reduces, winter Under operating condition, the multi-connected machine continuous heating working time is greatly extended, greatly improves the user experience at heat demand end, and Overall construction is simple, is easily installed, and facilitates realization device integrated.
Detailed description of the invention
Fig. 1 is the refrigerated air-conditioning system structural schematic diagram for embodiment one.
Fig. 2 is the refrigerated air-conditioning system structural schematic diagram for embodiment two.
Fig. 3 is the refrigerated air-conditioning system structural schematic diagram for embodiment three.
Wherein, 1- compressor, air-cooled heat exchanger, 3- water cooling heat exchanger, 4- water cooling heat exchanger outlet pipe, 5- water cooling outside the room 2- Heat exchanger water inlet pipe, 6- auxiliary water cooling Cooling and Heat Source, 7- driven compressor module heat exchanger, 8- plate heat exchanger, the multi-joint interior 9- Heat exchanger, 10- gas-liquid separator, 11- gs-oil separator.
Specific embodiment
The present invention is further illustrated combined with specific embodiments below.
Embodiment one:
Referring to figure 1, in the present embodiment, a kind of multiple refrigerated air-conditioning system with double Cooling and Heat Sources, including compression Machine 1, outdoor air-cooled heat exchanger 2, multi-joint indoor heat exchanger 9, four-way valve ST1, water cooling heat source module, driven compressor module are cooling Module 7, subcooler 8, gs-oil separator 11, gas-liquid separator 10, solenoid valve MV6, expansion valve EVXA, the first shut-off valve SV1 and Second shut-off valve SV2, wherein water cooling heat source module includes water cooling heat exchanger 3 and forms Water-cooling circulating loop with water cooling heat exchanger 3 Auxiliary water cooling Cooling and Heat Source 6, that is, water cooling heat exchanger 3 by water cooling heat exchanger outlet pipe 4 and water cooling heat exchanger water inlet pipe 5 with it is auxiliary Water cooling Cooling and Heat Source 6 is helped to be connected, the auxiliary water cooling Cooling and Heat Source 6 of the present embodiment can be underground water, well water, rivers and lakes water, cold But the various residual heat resources auxiliary water sourcies such as tower water circulation system.The subcooler 8 of the present embodiment includes tetra- interfaces of E, F, G, H;Four Port valve ST1 includes tetra- interfaces of a, b, c, d.
The water cooling heat exchanger 3 of the present embodiment is series between the interface c of four-way valve ST1 and outdoor air-cooled heat exchanger 2, because This, the connection composition of above-mentioned each component are as follows: the exhaust end and air return end of compressor 1 are gentle with one end of gs-oil separator 11 respectively One end of liquid/gas separator 10 is connected, interface a, interface b, interface c and the interface d of four-way valve ST1 respectively with gs-oil separator 11 The other end, one end of multi-joint indoor heat exchanger 9, one end of water cooling heat exchanger 3 be connected with the other end of gas-liquid separator 10; One end of outdoor air-cooled heat exchanger 2 is connected with the other end of water cooling heat exchanger 3;Solenoid valve MV6 and expansion valve EVXA is in parallel connection Arrangement, wherein the other end of outdoor air-cooled heat exchanger 2 is connected with one end of solenoid valve MV6 and expansion valve EVXA respectively;Compression One end of machine drive module refrigerating module 7 is connected with the other end of solenoid valve MV6 and expansion valve EVXA;Driven compressor module The other end of refrigerating module 7 is connected with the interface E of subcooler 8, and the interface F of subcooler 8 is another with multi-joint indoor heat exchanger 9 End, the interface F and interface G of subcooler are connected and are equipped with expansion valve EVXC, the interface H of subcooler between interface F and interface G It is connected with one end of gas-liquid separator 10.First shut-off valve is set between subcooler 8 and multi-joint indoor heat exchanger 9;Second Shut-off valve is set between the interface d of four-way valve and multi-joint indoor heat exchanger 9.
The refrigerant circulation loop of refrigerated air-conditioning system is just constituted by above-mentioned connection.It can be seen that water cooling at this time Heat exchanger 3 has reheat function in cooling mode with pre-cooling function in a heating mode.
In the present embodiment, the water cooling heat source module matches with outdoor 2 the two of air-cooled heat exchanger and constitutes refrigeration sky Therefore the Cooling and Heat Source of adjusting system can need situation, phase according to the operating conditions and multi-joint indoor heat exchanger 9 of refrigerated air-conditioning system When selecting any one or two in water cooling heat source module and outdoor air-cooled heat exchanger 2 with answering as refrigerated air-conditioning systems operation Cooling and Heat Source, refrigerated air-conditioning system includes single air source heat pump heating circulation, single water source heat pump heating circulation, air-source as a result, With water source joint double-cold source heat pump heating circulation, single air source heat pump refrigeration cycle, single water resource heat pump refrigeration cycle, air-source and Combine double cold source refrigeration cycle in water source.
Further, in single air source heat pump heating circulation, water cooling heat source module does not work (that is, auxiliary water cooling Cooling and Heat Source 6 It is not involved in the circulation loop of air-conditioning refrigeration system), outdoor air-cooled heat exchanger 2 works and participates in the Cyclic Rings of air-conditioning refrigeration system Road, air-conditioning refrigeration system at this time carry out heating operation using ambient outdoor air as Cooling and Heat Source.
Further, in single water source heat pump heating circulation, the work of water cooling heat source module is (that is, auxiliary water cooling Cooling and Heat Source 6 participates in The circulation loop of air-conditioning refrigeration system), outdoor air-cooled heat exchanger 2 does not work (circulation loop for being not involved in air-conditioning refrigeration system), Air-conditioning refrigeration system at this time carries out heating operation using auxiliary water cooling Cooling and Heat Source 6 as Cooling and Heat Source.
Further, in air-source and water source joint double-cold source heat pump heating circulation, water cooling heat source module works (that is, auxiliary Water cooling Cooling and Heat Source 6 is helped to participate in the circulation loop of air-conditioning refrigeration system), the outdoor work of air-cooled heat exchanger 2 (is not involved in air conditioner refrigerating system The circulation loop of system), air-conditioning refrigeration system at this time is combined using auxiliary water cooling Cooling and Heat Source 6 and ambient outdoor air as Cooling and Heat Source Carry out heating operation.
Further, in single air source heat pump refrigeration cycle, water cooling heat source module does not work (that is, auxiliary water cooling Cooling and Heat Source 6 It is not involved in the circulation loop of air-conditioning refrigeration system), outdoor air-cooled heat exchanger 2 works and participates in the Cyclic Rings of air-conditioning refrigeration system Road, air-conditioning refrigeration system at this time carry out refrigerating operation using ambient outdoor air as Cooling and Heat Source.
Further, in single water resource heat pump refrigeration cycle, the work of water cooling heat source module is (that is, auxiliary water cooling Cooling and Heat Source 6 participates in The circulation loop of air-conditioning refrigeration system), outdoor air-cooled heat exchanger 2 does not work (circulation loop for being not involved in air-conditioning refrigeration system), Air-conditioning refrigeration system at this time carries out refrigerating operation using auxiliary water cooling Cooling and Heat Source 6 as Cooling and Heat Source.
Further, in air-source and water source joint double-cold source heat pump refrigeration cycle, water cooling heat source module works (that is, auxiliary Water cooling Cooling and Heat Source 6 is helped to participate in the circulation loop of air-conditioning refrigeration system), the outdoor work of air-cooled heat exchanger 2 (is not involved in air conditioner refrigerating system The circulation loop of system), air-conditioning refrigeration system at this time is combined using auxiliary water cooling Cooling and Heat Source 6 and ambient outdoor air as Cooling and Heat Source Carry out refrigerating operation.
For the ease of the understanding of the refrigerating operation to above-mentioned refrigerated air-conditioning system, combine below in conjunction with air-source and water source double Cold source heat pump refrigeration cycle, which is made, to be further explained.
The flow direction of refrigerant under refrigeration mode are as follows: the refrigerant vapor compression that compressor 1 sucks low-temp low-pressure becomes high temperature The refrigerant vapour of high pressure, the refrigerant vapour of high temperature and pressure enter gs-oil separator 11 and realize Oil-gas Separation, realize oil gas point After entering four-way reversing valve ST1 from later high-temperature high-pressure refrigerant steam, is come out from the interface a of four-way reversing valve and enter water cooling Heat exchanger 3 then successively enters 7 and of driven compressor module refrigerating module after outdoor air-cooled heat exchanger 2, solenoid valve MV6 Subcooler 8, refrigerant are divided into two parts after flowing through subcooler 8, wherein from interface G after the expanded valve EVXC throttling of sub-fraction Subcooler is flowed into, is subcooled to from interface E to the refrigerant that interface F flows through, this subsequent sub-fraction refrigerant is flowed from interface H Out to gas-liquid separator 10;And most of refrigerant enters multi-joint indoor heat exchanger 9 and is evaporated system of the refrigeration as low-temp low-pressure The interface d of refrigerant vapour, the refrigerant vapour four-way valve ST1 of low-temp low-pressure enters and flows out to gas from the interface b of four-way valve ST1 Liquid/gas separator 10 completes vapor-liquid separation, and the refrigerant of the low-temp low-pressure after vapor-liquid separation is sucked by compressor 1, with laggard Enter new round circulation.
Further, in air-source and water source joint double-cold source heat pump refrigeration cycle and under in refrigeration mode, refrigerant It flows successively through water cooling heat exchanger 3 and outdoor air-cooled heat exchanger 2 makees condensation heat release, that is, refrigerant is to flow through water cooling heat exchanger 3 cold After solidifying heat release, enters back into outdoor air-cooled heat exchanger 2 and condense heat release again, so that it is cold to refrigerant to realize water cooling heat exchanger 3 Pre-cooling function, complete secondary heat release to refrigerant, further decrease the degree of supercooling of system, realize multistage supercooling, improve system The refrigerating efficiency of system.
For the ease of the understanding of the heating operation to above-mentioned refrigerated air-conditioning system, combine below in conjunction with air-source and water source double Cold source heat pump heating circulation, which is made, to be further explained.
The flow direction of refrigerant under heating mode are as follows: the refrigerant vapor compression that compressor 1 sucks low-temp low-pressure becomes high temperature The refrigerant vapour of high pressure, the refrigerant vapour of high temperature and pressure enter gs-oil separator 11 and realize Oil-gas Separation, realize oil gas point After entering four-way reversing valve ST1 from later high-temperature high-pressure refrigerant steam, come out from the interface d of four-way reversing valve into multi-joint Indoor heat exchanger 9 realizes condensation heat release, and the high-temperature high-pressure refrigerant liquid after condensing heat release is before flowing into subcooler 8 It is divided into two parts, wherein flows into subcooler from interface G after the expanded valve EVXC throttling of sub-fraction, flowed to from interface F to interface E The refrigerant crossed is subcooled, this subsequent sub-fraction refrigerant flows out to gas-liquid separator 10 from interface H, the big portion after supercooling Refrigerant is divided successively to pass through driven compressor module refrigerating module 7, the laggard outer air-cooled heat exchanger 2 of entering the room of expanded valve EVXA throttling It absorbs heat from air evaporation, then entering back into the evaporation endothermic from auxiliary water cooling Cooling and Heat Source 6 of outdoor unit water cooling heat exchanger 3 becomes low The refrigerant vapour of warm low pressure;The interface a of the refrigerant vapour four-way reversing valve ST1 of low-temp low-pressure enters and enters from interface b Low-pressure gas-liquid separator 10 completes vapor-liquid separation, and the refrigerant of the low-temp low-pressure after vapor-liquid separation is sucked by compressor, Subsequently enter new round circulation.
Further, in air-source and water source joint double-cold source heat pump heating circulation and under heating mode, refrigerant It flows successively through outdoor air-cooled heat exchanger 2 and water cooling heat exchanger 3 makees evaporation endothermic, that is, refrigerant is flowing through outdoor air-cooled heat exchange After 2 evaporation endothermic of device, it is again introduced into evaporation endothermic in water cooling heat exchanger 3, so that it is cold to system to realize water cooling heat exchanger 3 The reheat function of cryogen completes the secondary heat absorption to refrigerant, improves the heating load of indoor heat exchanger, improves air-conditioning equipment and changes The thermal efficiency achievees the purpose that energy conservation, consumption reduction, emission reduction, noise reduction.
Combine double cold source systems above by air-source and water source joint double-cold source heat pump heating circulation and air-source and water source SAPMAC method is explained, and for single air source heat pump heating circulation, single water source heat pump heating circulation, single air-source heat For pump refrigeration cycle, single water resource heat pump refrigeration cycle, it is only necessary to close corresponding water cooling heat exchanger 3 or outdoor air-cooled heat exchanger 2, without phase factor heat exchange, remaining refrigerant flow direction is all the same.
Embodiment two:
Referring to shown in attached drawing 2, the distinguishing characteristics compared with embodiment one is: the water cooling heat exchanger 3 of the present embodiment is series at Between outdoor air-cooled heat exchanger 2 and multi-joint indoor heat exchanger 9 and arranged adjacent is in outdoor 2 one end of air-cooled heat exchanger, that is, water cooling is changed One end of hot device 3 is connected with outdoor air-cooled heat exchanger 2, and the other end of water cooling heat exchanger 3 respectively with solenoid valve MV6 and expansion Valve EVXA is connected;And the interface a of four-way valve is directly connected with outdoor air-cooled heat exchanger 2.
In this manner, water cooling heat exchanger 3 is in cooling mode with cold function again, and has in a heating mode Pre- heat function, wherein the flow direction of refrigerant in cooling mode are as follows: refrigerant is through the compression discharge of compressor 1 through gs-oil separator 11 and four-way valve ST1 is introduced into outdoor air-cooled heat exchanger 2 and makees condensation heat release, then enters back into water cooling heat exchanger 3 and condense again Heat release realizes the condensing heat-exchange of double heat sources, further decreases the degree of supercooling of system, realizes multistage supercooling, improves the system of system Cold efficiency.The flow direction of refrigerant in a heating mode are as follows: refrigerant is flowed out by multi-joint indoor heat exchanger 9 through subcooler 8 and compression It after machine drive module refrigerating module 7, is introduced into water cooling heat exchanger 3 and makees evaporation endothermic, then entering the outdoor work of air-cooled heat exchanger 2 Evaporation endothermic improves the heating load of indoor heat exchanger, improves air-conditioning equipment heat exchange efficiency, reaches energy conservation, consumption reduction, emission reduction, drop The purpose made an uproar.
Embodiment three:
Referring to shown in attached drawing 3, the distinguishing characteristics compared with embodiment one is: the water cooling heat exchanger 3 of the present embodiment is series at Between outdoor air-cooled heat exchanger 2 and multi-joint indoor heat exchanger 9 and arranged adjacent is at multi-joint 9 one end of indoor heat exchanger, that is, water cooling One end of heat exchanger 3 is connected with multi-joint indoor heat exchanger 9, and the other end of water cooling heat exchanger 3 is connected with subcooler 8.Separately Outside, the first shut-off valve is set between water cooling heat exchanger 3 and multi-joint indoor heat exchanger 9;Second shut-off valve is set to four-way valve Between interface d and multi-joint indoor heat exchanger 9.Water cooling heat exchanger 3 at this time is heating in cooling mode with supercooling function Medium temperature vaporization function is had under mode.
The flow direction of refrigerant in cooling mode are as follows: refrigerant is through compressor after outdoor air-cooled heat exchanger 2 condenses heat release After drive module refrigerating module 7 and subcooler 8, condensation heat release is carried out into water cooling heat exchanger 3, realizes the supercooling to refrigerant Processing, the rear refrigerant of supercooling are sent into multi-joint indoor heat exchanger 9 and make evaporation endothermic, further decrease the degree of supercooling of system, realize Multistage supercooling, improves the refrigerating efficiency of system.The flow direction of refrigerant in a heating mode are as follows: through refrigerant by multi-joint indoor heat exchange Device 9, which flows out in water cooling heat exchanger 3, makees medium temperature evaporation endothermic, is then entering subcooler 8, driven compressor module refrigerating module 7 laggard outer air-cooled heat exchangers 2 of entering the room make evaporation endothermic, and then improve the evaporating temperature of outside refrigerant, improve indoor and change The heating load of hot device improves air-conditioning equipment heat exchange efficiency, achievees the purpose that energy conservation, consumption reduction, emission reduction, noise reduction.
Three kinds of different arrangements are listed for water cooling heat exchanger 3 according to the above embodiments one, embodiment two, embodiment three Position, to have different functional effects.For (such as -10 DEG C and hereinafter, the evaporating temperature of R410a is low under worst cold case Evaporating pressure is 0.48MPa when -15 DEG C, -15 DEG C, and when condensation temperature is 36.18 DEG C, condensing pressure 2.2MPa, pressure ratio is 4.58, if people to be allowed to feel hot wind, condensation temperature generally can be more than 46.17 DEG C, and at this moment corresponding condensing pressure is 5.833) 2.8MPa, corresponding pressure ratio are that the evaporating temperature of the refrigerant at this moment pure outdoor air-cooled heat exchanger 2 is very low, steam Pressure also very little is sent out, (at 0 DEG C or so, evaporating pressure is located at the evaporating temperature of conventional system system refrigerant internal circulating load very little 4) 0.8MPa or so, pressure ratio are no more than, pressure ratio is bigger, and the volumetric efficiency of compressor is lower, system refrigerant internal circulating load very little, into And the heating capacity that system can be improved is just very limited, heating efficiency is very low.Therefore, by introducing above-mentioned water cooling heat exchanger 3, using the water in underground water well as the heat source of water cooling heat exchanger, generally at 10 DEG C or more, (it is corresponded to steams the temperature of underground water Hair temperature is generally higher than 5 DEG C, and corresponding evaporating pressure is 0.95MPa(5.59 DEG C), at same condensing pressure 2.8MPa, Pressure ratio only has 2.947, and pressure ratio only has the 50.5% of corresponding air cooling system), system volume coefficient will be remarkably enhanced, The heating capacity of system will be substantially improved significantly.
In addition, air-conditioning refrigeration system has the place of cheap, economic auxiliary water cooling heat source under actual condition environment, preferentially Priming chamber outdoor unit water cold heat exchanger operating mode realizes economical and efficient operation.
Further, compressor is frequency-changeable compressor, and frequency-changeable compressor type can be full direct current fully-closed vortex formula refrigeration pressure Contracting machine, exchange fully-closed vortex formula refrigeration compressor, Quan Zhiliu full-sealed rotor type refrigeration compressor and other similar system Cold compressor.
Further, outdoor air-cooled heat exchanger 2 can be shell-and-tube heat exchanger, bushing type and gas water-cooled heat exchanger.
Further, multi-joint indoor heat exchanger 9 is made of the indoor heat exchanger that several are formed in parallel, wherein each interior Heat exchanger is air-cooled modular heat exchanger, water cooling modular heat exchanger.
The embodiment of the above is only presently preferred embodiments of the present invention, not does limit in any form to the present invention System.Anyone skilled in the art utilizes the skill of the disclosure above without departing from the scope of the technical proposal of the invention Art content makes more possible variations and retouching to technical solution of the present invention, or modification is equivalent embodiment of the invention. Therefore all contents without departing from technical solution of the present invention, the equivalent equivalence changes that thinking according to the present invention is done should all be covered by In protection scope of the present invention.

Claims (10)

1. a kind of multiple refrigerated air-conditioning system with double Cooling and Heat Sources, including by compressor (1), outdoor air-cooled heat exchanger (2), The refrigerant circulation loop of multi-joint indoor heat exchanger (9) and four-way valve (ST1) composition, it is characterised in that: further include series connection access Water cooling heat source module on refrigerant circulation loop, wherein both the water cooling heat source module and outdoor air-cooled heat exchanger (2) phase Cooperation constitutes the Cooling and Heat Source of refrigerated air-conditioning system, can be selected any in water cooling heat source module and outdoor air-cooled heat exchanger (2) Cooling and Heat Source when one or two runs as refrigerated air-conditioning system;The water cooling heat source module includes that series connection access refrigerant follows The water cooling heat exchanger (3) of ring loop and the auxiliary water cooling Cooling and Heat Source (6) that Water-cooling circulating loop is formed with water cooling heat exchanger (3), are adjusted Positional relationship of the whole water cooling heat exchanger (3) on refrigerant circulation loop is to enable water cooling heat exchanger (3) in cooling mode With pre-cooling/or again it is cold/or supercooling function, and in a heating mode correspondingly with reheating/or preheating/or medium temperature evaporate function Energy.
2. a kind of multiple refrigerated air-conditioning system with double Cooling and Heat Sources according to claim 1, it is characterised in that: work as institute State water cooling heat exchanger (3) when of being series between the interface c of four-way valve (ST1) and outdoor air-cooled heat exchanger (2), water cooling at this time is changed Hot device (3) has reheat function in cooling mode with pre-cooling function in a heating mode.
3. a kind of multiple refrigerated air-conditioning system with double Cooling and Heat Sources according to claim 1, it is characterised in that: work as institute State that water cooling heat exchanger (3) is series between outdoor air-cooled heat exchanger (2) and multi-joint indoor heat exchanger (9) and arranged adjacent is in outdoor When air-cooled heat exchanger (2) one end, water cooling heat exchanger (3) at this time has cold function again in cooling mode, and in heating mode Pre- heat function is had down.
4. a kind of multiple refrigerated air-conditioning system with double Cooling and Heat Sources according to claim 1, it is characterised in that: work as institute State that water cooling heat exchanger (3) is series between outdoor air-cooled heat exchanger (2) and multi-joint indoor heat exchanger (9) and arranged adjacent is multi-joint When indoor heat exchanger (9) one end, water cooling heat exchanger (3) at this time has supercooling function in cooling mode, and in heating mode Medium temperature vaporization function is had down.
5. a kind of multiple refrigerated air-conditioning system with double Cooling and Heat Sources, feature according to Claims 2 or 3 or 4 exist In: it further include the driven compressor mould between outdoor air-cooled heat exchanger (2) and multi-joint indoor heat exchanger (9) and being serially connected Block refrigerating module (7) and subcooler (8), wherein the subcooler (8) is connected with multi-joint indoor heat exchanger (9) one end;It is described Driven compressor module refrigerating module (7) is connected with outdoor air-cooled heat exchanger (2) one end.
6. a kind of multiple refrigerated air-conditioning system with double Cooling and Heat Sources according to claim 5, it is characterised in that: also wrap Include gs-oil separator (11), wherein the gs-oil separator (11) is set to the compressor (1) exhaust end and four-way valve (ST1) Interface a between.
7. a kind of multiple refrigerated air-conditioning system with double Cooling and Heat Sources according to claim 5, it is characterised in that: also wrap Include gas-liquid separator (10), wherein described gas-liquid separator (10) one end is connected with the air return end of compressor (1), and another End is connected with the interface d of the supercooling output port and four-way valve (ST1) of subcooler 8 respectively.
8. a kind of multiple refrigerated air-conditioning system with double Cooling and Heat Sources according to claim 5, it is characterised in that: also wrap It includes and is set between outdoor air-cooled heat exchanger (2) and driven compressor module refrigerating module (7) and in the solenoid valve of parallel arrangement (MV6) and expansion valve (EVXA).
9. a kind of multiple refrigerated air-conditioning system with double Cooling and Heat Sources according to claim 5, it is characterised in that: described The first shut-off valve (SV1) is equipped between subcooler (8) and multi-joint indoor heat exchanger (9).
10. a kind of multiple refrigerated air-conditioning system with double Cooling and Heat Sources according to claim 5, it is characterised in that: institute It states and is equipped with the second shut-off valve (SV2) between the interface d of four-way valve and multi-joint indoor heat exchanger (9).
CN201910741066.9A 2019-08-12 2019-08-12 A kind of multiple refrigerated air-conditioning system with double Cooling and Heat Sources Pending CN110440352A (en)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4727727A (en) * 1987-02-20 1988-03-01 Electric Power Research Institute, Inc. Integrated heat pump system
CN102147170A (en) * 2011-03-30 2011-08-10 青岛理工大学 Water-cooled multi-connected unit triple-supply central air conditioning system
JP2012137290A (en) * 2012-04-08 2012-07-19 Masahiro Izutsu Integrated utilization system of household wastewater
CN102620362A (en) * 2012-03-27 2012-08-01 美的集团有限公司 Low-temperature strong-heating multi-split system
CN204063300U (en) * 2014-08-14 2014-12-31 铁道第三勘察设计院集团有限公司 A kind of soil composite type variable refrigerant flow aircondition
CN105276861A (en) * 2015-11-24 2016-01-27 广东申菱环境系统股份有限公司 Compensation type double-source heat pump cold and hot air air-conditioner unit
CN109028413A (en) * 2018-08-23 2018-12-18 广东申菱环境系统股份有限公司 A kind of integrated multiple unit of combination multi-source and its control method

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4727727A (en) * 1987-02-20 1988-03-01 Electric Power Research Institute, Inc. Integrated heat pump system
CN102147170A (en) * 2011-03-30 2011-08-10 青岛理工大学 Water-cooled multi-connected unit triple-supply central air conditioning system
CN102620362A (en) * 2012-03-27 2012-08-01 美的集团有限公司 Low-temperature strong-heating multi-split system
JP2012137290A (en) * 2012-04-08 2012-07-19 Masahiro Izutsu Integrated utilization system of household wastewater
CN204063300U (en) * 2014-08-14 2014-12-31 铁道第三勘察设计院集团有限公司 A kind of soil composite type variable refrigerant flow aircondition
CN105276861A (en) * 2015-11-24 2016-01-27 广东申菱环境系统股份有限公司 Compensation type double-source heat pump cold and hot air air-conditioner unit
CN109028413A (en) * 2018-08-23 2018-12-18 广东申菱环境系统股份有限公司 A kind of integrated multiple unit of combination multi-source and its control method

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