CN206514563U - Air-conditioning system unit and air-conditioning system - Google Patents

Air-conditioning system unit and air-conditioning system Download PDF

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Publication number
CN206514563U
CN206514563U CN201621404316.8U CN201621404316U CN206514563U CN 206514563 U CN206514563 U CN 206514563U CN 201621404316 U CN201621404316 U CN 201621404316U CN 206514563 U CN206514563 U CN 206514563U
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subsystem
bypass
economizer
heat exchanger
export
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魏峰
赖瑜
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Gree Electric Appliances Inc of Zhuhai
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Gree Electric Appliances Inc of Zhuhai
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Abstract

The utility model provides a kind of air-conditioning system unit and air-conditioning system.According to air-conditioning system unit of the present utility model, including the first subsystem and the second subsystem；Wherein, the first subsystem includes the first compressor, the first outdoor heat exchanger, the first indoor heat exchanger and for the first economizer to the first compressor Gas-supplying enthalpy-increasing for being interconnected to form the first compression circulation；Second subsystem includes the second compressor, the second outdoor heat exchanger, the second indoor heat exchanger and for the second economizer to the second compressor Gas-supplying enthalpy-increasing for being interconnected to form the second compression circulation；Air-conditioning system unit also includes：Selectively make the bypass of the second economizer access the first compression to circulate so that the refrigerant of the first compression circulation is no longer pass through the first defrost pipeline of the first indoor heat exchanger；And, selectively compress the bypass access second of the first economizer and circulate the second defrost pipeline so that the refrigerant of the second compression circulation is no longer pass through the second indoor heat exchanger, realize continuous heating.

Description

Air-conditioning system unit and air-conditioning system
Technical field
The utility model is related to field of air conditioning, in particular to a kind of air-conditioning system unit and air-conditioning system.
Background technology
Air-cooled heat pump water chiller-heater units as central air conditioner system Cooling and Heat Source, because its is easy for installation, operation operation letter It is single, save and be easy to the features such as modularization is integrated, considerable progress has been obtained in recent years, it is constantly widened using scope.Commonly The minimum environment temperature of most of heating operation is -15 DEG C to air-cooled heat pump water chiller-heater units at present, in order to widen air-cooled air-source heat The range of operation of heat pump heating use air injection enthalpy-increasing technology more.Using the air-cooled heat pump water chiller-heater units heating operation of air injection enthalpy-increasing Minimum reachable -25 DEG C~-30 DEG C of scope.
Air injection enthalpy-increasing air-cooled heat pump water chiller-heater units evaporation side finned heat exchanger and air heat-exchange when heating in winter is easy In fin surface frosting, heat exchange efficiency of fins is influenceed, so as to influence unit capacity and reliability operation.Four-way is generally utilized at present The reverse cycle defrosting of valve commutation, but defrosting process needs absorb heat from water side, stopping are heated during defrosting, it is impossible to continuous heating, Fluctuating temperature is very big, has a strong impact on user's usage comfort.When air injection enthalpy-increasing air-cooled heat pump water chiller-heater units still do not solve defrosting The problem of continuous heating.
Utility model content
The utility model aim to provide it is a kind of can during defrost the air-conditioning system unit of continuous heating and air-conditioning system System.
The utility model provides a kind of air-conditioning system unit, including the first subsystem and the second subsystem；Wherein, first Subsystem includes the first compressor, the first outdoor heat exchanger, the first indoor heat exchanger for being interconnected to form the first compression circulation With for the first economizer to the first compressor Gas-supplying enthalpy-increasing；Second subsystem includes being interconnected to form the second compression circulation The second compressor, the second outdoor heat exchanger, the second indoor heat exchanger and for the second compressor Gas-supplying enthalpy-increasing second warp Help device；Air-conditioning system unit also includes：Selectively make the bypass of the second economizer access the first compression to circulate so that the first pressure The refrigerant of contracting circulation is no longer pass through the first defrost pipeline of the first indoor heat exchanger；And, selectively make the first economizer The compression of bypass access second is circulated so that the refrigerant of the second compression circulation is no longer pass through the second defrost pipe of the second indoor heat exchanger Road.
Further, the first compression circulation is with first be located between the first outdoor heat exchanger and the first indoor heat exchanger Contact and the second contact；Second compression circulation connects with the 3rd be located between the second outdoor heat exchanger and the second indoor heat exchanger Point and the 4th contact；The inlet pipe of first economizer include import contact, the port of export respectively with import contact is connected heats import Main road inlet pipe and bypass inlet pipe that branch pipe and refrigeration entrance branch and entrance point are connected with import contact respectively；Wherein, heat The entrance point of entrance branch is connected with the first contact, and the entrance point of refrigeration entrance branch is connected with the second contact, main road inlet pipe The port of export is connected with the entrance point of the main road of the first economizer, and the bypass import of the port of export of bypass inlet pipe and the first economizer connects Connect, and bypass throttling arrangement has been arranged in series on bypass inlet pipe；The outlet pipe of the main road of first economizer include outlet supervisor and with What outlet supervisor connected heats outlet stool and refrigeration outlet stool, wherein, heat the port of export and the second contact of outlet stool Connection, the port of export of refrigeration outlet stool is connected with the first contact, and outlet supervisor has been arranged in series main road throttling arrangement, heats Check valve has been arranged in series respectively on outlet stool and refrigeration outlet stool；The inlet pipe of second economizer includes import contact, gone out What mouthful end be connected with import contact respectively heat entrance branch and freeze entrance branch and entrance point respectively with import contact company The main road inlet pipe and bypass inlet pipe connect；Wherein, the entrance point for heating entrance branch is connected with the 3rd contact, refrigeration entrance branch Entrance point is connected with the 4th contact, and the port of export of main road inlet pipe is connected with the entrance point of the main road of the second economizer, bypass inlet pipe The port of export be connected with the bypass import of the second economizer, and bypass throttling arrangement has been arranged in series on bypass inlet pipe；Second warp Help device main road outlet pipe include outlet supervisor and with outlet supervisor be connected heat outlet stool and freeze outlet stool, its In, the port of export for heating outlet stool is connected with the 4th contact, and the port of export of refrigeration outlet stool is connected with the 3rd contact, and is gone out Mouth supervisor has been arranged in series main road throttling arrangement, heats and has been arranged in series respectively unidirectionally on outlet stool and refrigeration outlet stool Valve.
Further, the first defrost pipeline includes the first inlet pipe and the first outlet pipe, wherein, the entrance point of the first inlet pipe and the The port of export of the main road throttling arrangement of one economizer is connected by control valve, and the port of export of the first inlet pipe is auxiliary with the second economizer The entrance point connection on road；The entrance point of first outlet pipe is connected with the port of export of the bypass of the second economizer by control valve, and first The port of export of outlet pipe is connected between the first indoor heat exchanger and the first compressor by control valve；Second defrost pipeline includes the Two inlet pipes and the second outlet pipe, wherein, the port of export of the entrance point of the second inlet pipe and the main road throttling arrangement of the second economizer passes through Control valve is connected, and the port of export of the second inlet pipe is connected with the entrance point of the bypass of the first economizer；The entrance point of second outlet pipe with The port of export of the bypass of first economizer is connected by control valve, and the port of export of the second outlet pipe is connected to second Room by control valve Between interior heat exchanger and the second compressor.
Further, the control positioned at bypass throttling arrangement upstream is also arranged in series on the bypass inlet pipe of the first economizer Valve；The control valve positioned at bypass throttling arrangement upstream is also arranged in series on the bypass inlet pipe of second economizer；First defrost pipe Road includes the first inlet pipe and the first outlet pipe, wherein, the refrigeration entrance branch of the entrance point of the first inlet pipe and the first economizer passes through Control valve is connected, the port of export of the first inlet pipe be connected to the bypass throttling arrangement of the bypass inlet pipe of the second economizer and control valve it Between, the entrance point of the first outlet pipe is connected with the port of export of the bypass of the second economizer by control valve, the port of export of the first outlet pipe It is connected to by control valve between the first indoor heat exchanger and the first compressor；Second defrost pipeline includes the second inlet pipe and second Outlet pipe, wherein, the entrance point of the second inlet pipe is connected with the refrigeration entrance branch of the second economizer by control valve, the first inlet pipe The port of export is connected between the bypass throttling arrangement of the bypass inlet pipe of the first economizer and control valve；The entrance point of second outlet pipe with The port of export of the bypass of first economizer is connected by control valve, and the port of export of the second outlet pipe is connected to second Room by control valve Between interior heat exchanger and the second compressor.
Further, control valve is three-way control valve or two logical control valves.
Further, the first indoor heat exchanger and the second indoor heat exchanger are integrated into an integrated heat exchanger, integrated heat exchange Have on device the compression circulation of access first the first refrigerant inlet and the first refrigerant exit and the compression circulation of access second the Two refrigerant inlets and the second refrigerant exit.
The utility model additionally provides a kind of air-conditioning system, including at least one foregoing air-conditioning system unit.
Further, the indoor heat exchanger of all air-conditioning system units is integrated into a total heat exchanger.
According to air-conditioning system unit of the present utility model and air-conditioning system, the first subsystem and the second subsystem are changed respectively Frost, during the first subsystem defrost, by the first defrost pipeline make the second economizer bypass access first compression circulation with The refrigerant for circulating the first compression is no longer pass through the first indoor heat exchanger, and the second subsystem is normally heated；Second subsystem defrost Process is on the contrary；So as to ensure whole air-conditioning system unit continuous heating, reduce fluctuating temperature, improve user's usage comfort.
Brief description of the drawings
The accompanying drawing for constituting the part of the application is used for providing further understanding to of the present utility model, of the present utility model Schematic description and description is used to explain the utility model, does not constitute to improper restriction of the present utility model.In accompanying drawing In：
Fig. 1 is the principle schematic of the first embodiment according to air-conditioning system unit of the present utility model；
Fig. 2 is the principle schematic of the second embodiment according to air-conditioning system unit of the present utility model；
Fig. 3 is the principle schematic of the 3rd embodiment according to air-conditioning system unit of the present utility model；
Fig. 4 is the principle schematic of the fourth embodiment according to air-conditioning system unit of the present utility model；
Fig. 5 is the principle schematic of the 5th embodiment according to air-conditioning system unit of the present utility model.
Embodiment
Describe the utility model in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
As shown in Fig. 1 to 5, according to air-conditioning system unit of the present utility model, including the first subsystem and the second subsystem； Wherein, the first subsystem includes the first compressor, the first outdoor heat exchanger, the first Room for being interconnected to form the first compression circulation Interior heat exchanger and for the first economizer to the first compressor Gas-supplying enthalpy-increasing；Second subsystem includes being interconnected to form second Compress the second compressor of circulation, the second outdoor heat exchanger, the second indoor heat exchanger and for the second compressor Gas-supplying enthalpy-increasing The second economizer；Air-conditioning system unit also includes：Selectively make the second economizer bypass access first compression circulation with The refrigerant for circulating the first compression is no longer pass through the first defrost pipeline of the first indoor heat exchanger；And, selectively make first The compression of bypass access second of economizer is circulated so that the refrigerant of the second compression circulation is no longer pass through the of the second indoor heat exchanger Two defrost pipelines.According to air-conditioning system unit of the present utility model and air-conditioning system, the first subsystem and the second subsystem difference Defrost, during the first subsystem defrost, makes the bypass of the second economizer access the first compression and circulates by the first defrost pipeline So that the refrigerant of the first compression circulation is no longer pass through the first indoor heat exchanger, the second subsystem is normally heated；Second subsystem White process is on the contrary；Namely when a subsystem defrosting, another subsystem is heated.Subsystem economizer is heated as defrosting The evaporator of subsystem, defroster subsystem defrost heat heats subsystem high-temperature liquid from itself compressor work with another The heat that state refrigerant is released when being subcooled, heats subsystem and defroster subsystem realizes energy complement rationally to utilize system capacity. System does not absorb heat when defrosting from indoor heat exchanger, so as to ensure whole air-conditioning system unit continuous heating, reduces water temperature ripple It is dynamic, improve user's usage comfort.
It should be noted that in the utility model, outdoor heat exchanger and indoor heat exchanger are only functionally stated, it is indoor Heat exchanger should be understood to the heat exchanger to indoor effect (freeze or heat), and outdoor heat exchanger is also understood to outdoor Heat absorption or the heat exchanger of radiating, do not refer to specific installation site singly indoors or outdoor.In small-sized family expenses air-cooled heat pump In water chiller-heater unit or air-conditioning, indoor heat exchanger is disposed in the interior, and outdoor heat exchanger is disposed in the outdoor.But it is due to large-scale business Integrated machine is generally with air-cooled heat pump water chiller-heater units, integral installation is in outdoor, regardless of indoor and outdoor from installation site, because And, in large commercial air-cooled heat pump water chiller-heater units, air side heat exchanger is corresponded in outdoor heat exchanger, water-side heat respective chamber/chambers Heat exchanger, water-side heat is by hot and cold water pipeline and indoor heat exchange, so as to indoor cooling and warming.
Specifically, with reference to shown in Fig. 4 and Fig. 5, the first compression circulation has indoor positioned at the first outdoor heat exchanger and first The first contact a and the second contact b between heat exchanger；Second compression circulation, which has, to be located in the second outdoor heat exchanger and second Room The 3rd contact d and the 4th contact e between heat exchanger；The inlet pipe of first economizer includes import contact c, the port of export respectively with entering Mouthful contact c connections heat entrance branch and main road that freeze entrance branch and entrance point are connected with import contact respectively enters Pipe and bypass inlet pipe；Wherein, the entrance point for heating entrance branch is connected with the first contact a, freeze entrance branch entrance point with Second contact b connections, the port of export of main road inlet pipe is connected with the entrance point of the main road of the first economizer, the port of export of bypass inlet pipe It is connected with the bypass import of the first economizer, and bypass throttling arrangement has been arranged in series on bypass inlet pipe；The master of first economizer What the outlet pipe on road was connected including outlet supervisor and with outlet supervisor heats outlet stool and the outlet stool that freezes, wherein, heat out The port of export of mouth branch pipe is connected with the second contact b, and the port of export of refrigeration outlet stool is connected with the first contact a, and outlet supervisor Main road throttling arrangement has been arranged in series, has heated and has been arranged in series check valve respectively on outlet stool and refrigeration outlet stool；Second The inlet pipe of economizer heats entrance branch and refrigeration import branch including what import contact f, the port of export were connected with import contact f respectively Pipe and entrance point respectively with the import contact f main road inlet pipes being connected and bypass inlet pipe；Wherein, the import of entrance branch is heated End is connected with the 3rd contact d, and the entrance point of refrigeration entrance branch is connected with the 4th contact e, the port of export of main road inlet pipe and second The entrance point connection of the main road of economizer, the port of export of bypass inlet pipe is connected with the bypass import of the second economizer, and bypass enters Bypass throttling arrangement has been arranged in series on pipe；The outlet pipe of the main road of second economizer includes outlet supervisor and is connected with outlet supervisor Heat outlet stool and refrigeration outlet stool, wherein, the port of export for heating outlet stool is connected with the 4th contact e, is freezed and The port of export of mouthful branch pipe be connected with the 3rd contact d, and is exported supervisor and be arranged in series main road throttling arrangement, heat outlet stool with Check valve has been arranged in series respectively on refrigeration outlet stool.
It should be noted that as depicted in figs. 1 and 2, in the utility model, being changed in the first indoor heat exchanger and second Room Hot device can be integrated on an integrated heat exchanger, integrated heat exchanger have access first compression circulation the first refrigerant inlet and First refrigerant exit and the second refrigerant inlet and the second refrigerant exit of the compression circulation of access second.It is total to two subsystems With an indoor heat exchanger, compared to the mode that two subsystems are respectively adopted to indoor heat exchanger in Fig. 4 and Fig. 5, it can solve the problem that Not the problem of corresponding indoor heat exchanger of defrost subsystem does not have heat input, namely during defrost, subsystem is heated to two The shared indoor heat exchanger heat supply of subsystem, so as to the temperature for the indoor for more effectively reducing whole air-conditioning system unit Fluctuation, it is ensured that continuous heating, improves comfortableness.
With reference to Fig. 1 to 5, the utility model is illustrated by taking large commercial air-cooled heat pump water chiller-heater units as an example and is respectively implemented The concrete operating principle of example.
In the first embodiment systematic schematic diagram shown in Fig. 1.11 it is the compressor of the first subsystem in Fig. 1,1101 is The compressor air suction of one subsystem mouthful, 1102 be the exhaust outlet of compressor of the first subsystem, 1103 be the first subsystem compression Machine gas supplementing opening；12 be the four-way valve of the first subsystem；13 be the first triple valve of the first subsystem；04 is system water-side heat (indoor heat exchanger, two subsystems share), 0401 be the connection water-side heat gas tube orifice of the first subsystem, 0402 be the The connection water-side heat liquid pipe mouthful of one subsystem；15 be the first check valve of the first subsystem；16 be the warp of the first subsystem Ji device, 1601 be the economizer main road entrance of the first subsystem, 1602 be the economizer main road outlet of the first subsystem, 1603 be The economizer bypass entrance of first subsystem, 1604 export for the economizer bypass of the first subsystem；17 be the first subsystem Main road choke valve；18 be the bypass choke valve of the first subsystem；19 be the second triple valve of the first subsystem；110 be the first son 3rd triple valve of system；111 be the second check valve of the first subsystem；112 be the 3rd check valve of the first subsystem；113 For the 4th check valve of the first subsystem；114 for the first subsystem wind side finned heat exchanger (outdoor heat exchanger), 11401 be The wind side finned heat exchanger gas tube orifice of first subsystem, 11402 for the first subsystem wind side finned heat exchanger liquid pipe mouthful；115 It is the first subsystem for gas-liquid separator entrance that the gas-liquid separator of the first subsystem, 11501 are the first subsystem, 11502 Gas-liquid separator outlet.116 be the 5th check valve of the first subsystem.
Similarly, in Fig. 1 21 be the compressor of the second subsystem, 2101 be the second subsystem compressor air suction mouthful, 2102 it is the exhaust outlet of compressor of the second subsystem, 2103 is the compressor gas supplementing opening of the second subsystem；22 be the second subsystem Four-way valve；23 be the first triple valve of the second subsystem；04 is system water-side heat (indoor heat exchanger, two subsystems Altogether use), 0403 be the connection water-side heat gas tube orifice of the second subsystem, 0404 be the second subsystem connection water side heat exchange Device liquid pipe mouthful；25 be the first check valve of the second subsystem；26 it is the economizer of the second subsystem, 2601 is the second subsystem Economizer main road entrance, 2602 be the second subsystem economizer main road outlet, 2603 be the second subsystem economizer bypass Entrance, 2604 export for the economizer bypass of the second subsystem；27 be the main road choke valve of the second subsystem；28 be the second subsystem The bypass choke valve of system；29 be the second triple valve of the second subsystem；210 be the 3rd triple valve of the second subsystem；211 be Second check valve of two subsystems；212 be the 3rd check valve of the second subsystem；213 be the 4th check valve of the second subsystem； 214 it is the wind side finned heat exchanger of the second subsystem, 21401 is the wind side finned heat exchanger gas tube orifice of the second subsystem, 21402 For the wind side finned heat exchanger liquid pipe mouthful of the second subsystem；215 be the gas-liquid separator of the second subsystem, 21501 be second son The gas-liquid separator entrance of system, 21502 export for the gas-liquid separator of the second subsystem.216 be the 5th of the second subsystem Check valve.
Triple valve act as in the end of triple valve three two ends connection simultaneously switch off the 3rd end.With the of the first subsystem It is described as follows exemplified by one triple valve 13：When 1301 ends are connected with 1302 ends, 1303 ends disconnect；When 1301 ends are connected with 1303 ends When, 1302 ends disconnect；When 1302 ends are connected with 1303 ends, 1301 ends disconnect.Remaining is by that analogy.
System have freeze, heat, three kinds of basic models of defrost, each pattern refrigerant circulation flow is described as follows：
1st, refrigeration mode：
The D ends of the four-way valve 12 of first subsystem are connected with E ends, S ends are connected with C-terminal, the 3rd threeway of the first subsystem 11001 ends of valve 110 are connected with 11003 ends, and 1902 ends of the second triple valve 19 of the first subsystem are connected with 1903 ends, and first 1303 ends of the first triple valve 13 of subsystem are connected with 1301 ends, and the D ends of the four-way valve 22 of the second subsystem are connected with E ends, S End is connected with C-terminal, and 21001 ends of the 3rd triple valve 210 of the second subsystem are connected with 21003 ends, and the second of the second subsystem 2902 ends of triple valve 29 are connected with 2903 ends, and 2301 ends of the first triple valve 23 of the second subsystem are connected with 2302 ends.System Two subsystems separate refrigeration when cold.
The HTHP refrigerant medium discharged from the exhaust outlet 1102 of the compressor 11 of the first subsystem passes through the first subsystem The D ends and E ends of the four-way valve 12 of system, enter in the wind side finned heat exchanger 114 of the first subsystem to air heat release from 11401 ends High-temperature liquid state refrigerant is condensed into, the second check valve 111 by the first subsystem is brought out from 11402, is then split up into main road With bypass two-way refrigerant.Main road high-temperature liquid state refrigerant is cooled to by 1601 ends into heat release in the economizer 16 of the first subsystem Refrigerant is subcooled.The reducing pressure by regulating flow of main road choke valve 17 that the supercooling refrigerant come passes through the first subsystem again is brought out from 1602, from first 11001 ends and 11003 ends of 3rd triple valve of subsystem pass through, then by the 3rd check valve 112 of the first subsystem, by 0402 end enters evaporation endothermic in water-side heat 04 and freezed, and the low-temp low-pressure refrigerant come is brought out from 0401 and passes through the first subsystem The first triple valve 13 1303 ends and 1301 ends, then the four-way valve 12 for passing through the first subsystem C-terminal and S ends, by 11501 ends The gas-liquid separation into the gas-liquid separator 115 of the first subsystem, low-temp low-pressure gaseous coolant is brought out by first from 11502 The air entry 1101 of the compressor 11 of subsystem enters to be compressed in the compressor 11 of the first subsystem, is followed so as to complete main road refrigeration Ring.Bypass high-temperature liquid state refrigerant is gas-liquid two-phase refrigerant by the reducing pressure by regulating flow of bypass choke valve 18 of the first subsystem, from 1603 End flashes to gaseous coolant into heat absorption in the economizer 16 of the first subsystem.Brought out from 1604 come gaseous coolant pass through first son 1902 ends and 1903 ends of second triple valve 19 of system, then by the 5th check valve 116 of the first subsystem through the first subsystem The gas supplementing opening 1103 of the compressor 11 of system enters to be compressed in the compressor 11 of the first subsystem, so as to complete bypass tonifying Qi circulation. Said process constitutes the kind of refrigeration cycle of the first subsystem.
The HTHP refrigerant medium discharged from the exhaust outlet 2102 of the compressor 21 of the second subsystem passes through the second subsystem The D ends and E ends of the four-way valve 22 of system, enter in the wind side finned heat exchanger 214 of the second subsystem to air heat release from 21401 ends High-temperature liquid state refrigerant is condensed into, the second check valve 211 by the second subsystem is brought out from 21402, is then split up into main road With bypass two-way refrigerant.Main road high-temperature liquid state refrigerant is cooled to by 2601 ends into heat release in the economizer 26 of the second subsystem Refrigerant is subcooled.The reducing pressure by regulating flow of main road choke valve 27 that the supercooling refrigerant come passes through the second subsystem again is brought out from 2602, from second 21001 ends and 21003 ends of 3rd triple valve of subsystem pass through, then by the 3rd check valve 212 of the second subsystem, by 0404 end enters evaporation endothermic in water-side heat 04 and freezed, and the low-temp low-pressure refrigerant come is brought out from 0403 and passes through the second subsystem The first triple valve 23 2301 ends and 2302 ends, then the four-way valve 22 for passing through the second subsystem C-terminal and S ends, entered by 21501 Enter gas-liquid separation in the gas-liquid separator 215 of the second subsystem, low-temp low-pressure gaseous coolant is brought out by the second son from 21502 The air entry 2101 of the compressor 21 of system enters to be compressed in the compressor 21 of the second subsystem, is followed so as to complete main road refrigeration Ring.Bypass high-temperature liquid state refrigerant is gas-liquid two-phase refrigerant by the reducing pressure by regulating flow of bypass choke valve 28 of the second subsystem, from 2603 End is evaporated to gaseous coolant into heat absorption in the economizer 26 of the second subsystem.Brought out from 2604 come gaseous coolant pass through second son 2902 ends and 2903 ends of second triple valve 29 of system, then by the 5th check valve 216 of the second subsystem through the second subsystem The gas supplementing opening 2103 of the compressor 21 of system enters to be compressed in the compressor 21 of the second subsystem, so as to complete bypass tonifying Qi circulation. Said process constitutes the kind of refrigeration cycle of the second subsystem.
2nd, circulation is heated：
The D ends of the four-way valve 12 of first subsystem are connected with C-terminal, S ends are connected with E ends, the 3rd threeway of the first subsystem 11001 ends of valve 110 are connected with 11003 ends, and 1902 ends of the second triple valve 19 of the first subsystem are connected with 1903 ends, and first 1303 ends of the first triple valve 13 of subsystem are connected with 1301 ends, and the D ends of the four-way valve 22 of the second subsystem are connected with C-terminal, S End is connected with E ends, and 21001 ends of the 3rd triple valve 210 of the second subsystem are connected with 21003 ends, and the second of the second subsystem 2902 ends of triple valve 29 are connected with 2903 ends, and 2301 ends of the first triple valve 23 of the second subsystem are connected with 2302 ends.System Two subsystems are separate when hot heats.
The HTHP refrigerant medium discharged from the exhaust outlet 1102 of the compressor 11 of the first subsystem passes through the first subsystem The D ends of the four-way valve 12 of system and C-terminal, then the first triple valve 13 by the first subsystem 1301 ends and 1303 ends, from 0401 It is high-temperature liquid state refrigerant to water exothermic condensation to hold into water-side heat 04, brings out and comes again by the first subsystem from 0402 First check valve 15, is then split up into main road and bypass two-way refrigerant.Main road high-temperature liquid state refrigerant enters first by 1601 ends Heat release is cooled to that refrigerant is subcooled in the economizer 16 of subsystem.The supercooling refrigerant come is brought out from 1602 again by the first subsystem The reducing pressure by regulating flow of main road choke valve 17, passes through from 11001 ends and 11003 ends of the 3rd triple valve of the first subsystem, then by 4th check valve 113 of one subsystem, enters in the wind side finned heat exchanger 114 of the first subsystem from air suction from 11402 ends Thermal evaporation is low-temp low-pressure refrigerant, and the E ends and S ends for carrying out four-way valve 12 again by the first subsystem are brought out from 11401, by 11501 ends bring out into gas-liquid separation in the gas-liquid separator 115 of the first subsystem, low-temp low-pressure gaseous coolant from 11502 Entered by the air entry 1101 of the compressor 11 of the first subsystem and compressed in the compressor 11 of the first subsystem, so as to complete master Road heats circulation.Bypass high-temperature liquid state refrigerant is cold for gas-liquid two-phase by the reducing pressure by regulating flow of bypass choke valve 18 of the first subsystem Matchmaker, enters heat absorption in the economizer 16 of the first subsystem from 1603 ends and flashes to gaseous coolant.Brought out from 1604 and carry out gaseous coolant Pass through 1902 ends and 1903 ends of the second triple valve 19 of the first subsystem, then the 5th check valve 116 for passing through the first subsystem The gas supplementing opening 1103 of compressor 11 through the first subsystem enters to be compressed in the compressor 11 of the first subsystem, so as to complete bypass Tonifying Qi is circulated.Said process constitutes the first subsystem and heats circulation.
The HTHP refrigerant medium discharged from the exhaust outlet 2102 of the compressor 21 of the second subsystem passes through the second subsystem The D ends of the four-way valve 22 of system and C-terminal, then the first triple valve 23 by the second subsystem 2302 ends and 2301 ends, from 0403 It is high-temperature liquid state refrigerant to water exothermic condensation to hold into water-side heat 04, brings out and comes again by the second subsystem from 0404 First check valve 25, is then split up into main road and bypass two-way refrigerant.Main road high-temperature liquid state refrigerant enters second by 2601 ends Heat release is cooled to that refrigerant is subcooled in the economizer 26 of subsystem.The supercooling refrigerant come is brought out from 2602 again by the second subsystem The reducing pressure by regulating flow of main road choke valve 27, passes through from 21001 ends and 21003 ends of the 3rd triple valve of the second subsystem, then by 4th check valve 213 of two subsystems, enters in the wind side finned heat exchanger 214 of the second subsystem from air suction from 21402 ends Thermal evaporation is low-temp low-pressure refrigerant, and the E ends and S ends for carrying out four-way valve 22 again by the second subsystem are brought out from 21401, by 21501 enter gas-liquid separation in the gas-liquid separator 215 of the second subsystem, and low-temp low-pressure gaseous coolant brings out to lead to from 21502 The air entry 2101 of compressor 21 of the second subsystem is crossed into compression in the compressor 21 of the second subsystem, so as to complete main road Heat circulation.Bypass high-temperature liquid state refrigerant is gas-liquid two-phase refrigerant by the reducing pressure by regulating flow of bypass choke valve 28 of the second subsystem, Enter heat absorption in the economizer 26 of the second subsystem from 2603 ends and flash to gaseous coolant.Brought out from 2604 and carry out gaseous coolant and pass through 2902 ends and 2903 ends of second triple valve 29 of the second subsystem, then by the 5th check valve 216 of the second subsystem through The gas supplementing opening 2103 of the compressor 21 of two subsystems enters to be compressed in the compressor 21 of the second subsystem, so as to complete bypass tonifying Qi Circulation.Said process constitutes the second subsystem and heats circulation.
3rd, defrost is circulated：
3.1st, the defrosting of the first subsystem, the second subsystem heat and (do not spray enthalpy)
The D ends of the four-way valve 12 of first subsystem are connected with E ends, S ends are connected with C-terminal, the 3rd threeway of the first subsystem 11001 ends of valve 110 are connected with 11002 ends, and 1302 ends of the first triple valve 13 of the first subsystem are connected with 1301 ends, and first The bypass choke valve 18 of subsystem, which is closed, not to be connected, and the D ends of the four-way valve 22 of the second subsystem are connected with C-terminal, S ends and E ends connect Logical, 21001 ends of the 3rd triple valve 210 of the second subsystem are connected with 21003 ends, the second triple valve 29 of the second subsystem 2902 ends are connected with 2901 ends, and 2302 ends of the first triple valve 23 of the second subsystem are connected with 2301 ends, the second subsystem Bypass choke valve 28, which is closed, not to be connected.When the first subsystem defrosts, the second subsystem heats and (does not spray enthalpy).
The HTHP refrigerant medium discharged from the exhaust outlet 1102 of the compressor 11 of the first subsystem passes through the first subsystem The D ends and E ends of the four-way valve 12 of system, enter heat release defrost in the wind side finned heat exchanger 114 of the first subsystem from 11401 ends, High-temperature liquid state refrigerant is condensed into, the second check valve 111 by the first subsystem is brought out from 11402, afterwards by 1601 ends Heat release is cooled to that refrigerant is subcooled into the economizer 16 of the first subsystem.The supercooling refrigerant come is brought out from 1602 and passes through first again The reducing pressure by regulating flow of main road choke valve 17 of subsystem, passes through from 11001 ends and 11002 ends of the 3rd triple valve of the first subsystem, Enter heat absorption in the economizer 26 of the second subsystem from 2603 ends again and be evaporated to low-temp low-pressure refrigerant, brought out from 2604 after coming through the 2902 ends and 2901 ends of second triple valve 29 of two subsystems, then the first triple valve 13 for passing through the first subsystem 1302 ends With 1301 ends, the C-terminal for carrying out four-way valve 12 again by the first subsystem and S ends are brought out from 1301, enters the first son by 11501 ends Gas-liquid separation in the gas-liquid separator 115 of system, low-temp low-pressure gaseous coolant brings out the pressure by the first subsystem from 11502 The air entry 1101 of contracting machine 11 enters to be compressed in the compressor 11 of the first subsystem, so that the defrost for completing the first subsystem is followed Ring.
The HTHP refrigerant medium discharged from the exhaust outlet 2102 of the compressor 21 of the second subsystem passes through the second subsystem The D ends of the four-way valve 22 of system and C-terminal, then the first triple valve 23 by the second subsystem 2302 ends and 2301 ends, from 0403 It is high-temperature liquid state refrigerant to water exothermic condensation to hold into water-side heat 04, brings out and comes again by the second subsystem from 0404 First check valve 25, high-temperature liquid state refrigerant was cooled to cold by 2601 ends into heat release in the economizer 26 of the second subsystem Matchmaker.The reducing pressure by regulating flow of main road choke valve 27 that the supercooling refrigerant come passes through the second subsystem again is brought out from 2602, from the second subsystem The 3rd triple valve 21001 ends and 21003 ends pass through, then by the 4th check valve 213 of the second subsystem, from 21402 ends Low-temp low-pressure refrigerant is evaporated to from air heat absorption into the wind side finned heat exchanger 214 of the second subsystem, brings out to come from 21401 Again by the E ends and S ends of the four-way valve 22 of the second subsystem, the gas in 21501 gas-liquid separators 215 for entering the second subsystems Liquid is separated, and low-temp low-pressure gaseous coolant is brought out from 21502 to be entered come the air entry 2101 of the compressor 21 by the second subsystem Compressed in the compressor 21 of second subsystem, so that completing the second subsystem heats and (do not spray enthalpy) circulation.
When the first subsystem defrosts, the second subsystem is normally heated.The economizer 26 of second subsystem is used as defrosting The evaporator of first subsystem, the defrost heat of the first subsystem of defrosting do work and heat from itself compressor 11 second The heat that the high-temperature liquid state refrigerant of subsystem is released in the supercooling of economizer 26 of the second subsystem, the second subsystem heated and defrosting The first subsystem realize energy complement so as to rationally utilize system capacity.Not from water-side heat 04 during the defrosting of the first subsystem Absorb heat, it is ensured that whole system can continuous heating when defrosting.
3.2nd, the defrosting of the second subsystem, the first subsystem heat and (do not spray enthalpy)
The D ends of the four-way valve 12 of first subsystem are connected with C-terminal, S ends are connected with E ends, the 3rd threeway of the first subsystem 11001 ends of valve 110 are connected with 11003 ends, and 1902 ends of the second triple valve 19 of the first subsystem are connected with 1901 ends, and first 1301 ends of the first triple valve 13 of subsystem are connected with 1303 ends, and the bypass choke valve 18 of the first subsystem, which is closed, not to be connected. The D ends of the four-way valve 22 of second subsystem are connected with E ends, S ends are connected with C-terminal, the 3rd triple valve 210 of the second subsystem 21001 ends are connected with 21002 ends, and 2303 ends of the first triple valve 23 of the second subsystem are connected with 2302 ends, the second subsystem Bypass choke valve 28 close and do not connect.When the second subsystem defrosts, the first subsystem heats and (does not spray enthalpy).
The HTHP refrigerant medium discharged from the exhaust outlet 2102 of the compressor 21 of the second subsystem passes through the second subsystem The D ends and E ends of the four-way valve 22 of system, enter heat release defrost in the wind side finned heat exchanger 214 of the second subsystem from 21401 ends, High-temperature liquid state refrigerant is condensed into, the second check valve 211 by the second subsystem is brought out from 21402, afterwards by 2601 ends Heat release is cooled to that refrigerant is subcooled into the economizer 26 of the second subsystem.The supercooling refrigerant come is brought out from 2602 and passes through second again The reducing pressure by regulating flow of main road choke valve 27 of subsystem, passes through from 21001 ends and 21002 ends of the 3rd triple valve of the second subsystem, Enter heat absorption in the economizer 16 of the first subsystem from 1603 ends again and be evaporated to low-temp low-pressure refrigerant, brought out from 1604 after coming through the 1902 ends and 1901 ends of second triple valve 19 of one subsystem, then the first triple valve 23 for passing through the second subsystem 2303 ends With 2302 ends, the C-terminal for carrying out four-way valve 22 again by the second subsystem and S ends are brought out from 2302, enters the second son by 21501 ends Gas-liquid separation in the gas-liquid separator 215 of system, low-temp low-pressure gaseous coolant brings out the pressure by the second subsystem from 21502 The air entry 2101 of contracting machine 21 enters to be compressed in the compressor 21 of the second subsystem, so that the defrost for completing the second subsystem is followed Ring.
The HTHP refrigerant medium discharged from the exhaust outlet 1102 of the compressor 11 of the first subsystem passes through the first subsystem The D ends of the four-way valve 12 of system and C-terminal, then the first triple valve 13 by the first subsystem 1301 ends and 1303 ends, from 0401 It is high-temperature liquid state refrigerant to water exothermic condensation to hold into water-side heat 04, brings out and comes again by the first subsystem from 0402 First check valve 15, high-temperature liquid state refrigerant was cooled to cold by 1601 ends into heat release in the economizer 16 of the first subsystem Matchmaker.The reducing pressure by regulating flow of main road choke valve 17 that the supercooling refrigerant come passes through the first subsystem again is brought out from 1602, from the first subsystem The 3rd triple valve 11001 ends and 11003 ends pass through, then by the 4th check valve 113 of the first subsystem, from 11402 ends Low-temp low-pressure refrigerant is evaporated to from air heat absorption into the wind side finned heat exchanger 114 of the first subsystem, brings out to come from 11401 Again by the E ends and S ends of the four-way valve 12 of the first subsystem, the gas in 11501 gas-liquid separators 115 for entering the first subsystems Liquid is separated, and low-temp low-pressure gaseous coolant is brought out from 11502 to be entered come the air entry 1101 of the compressor 11 by the first subsystem Compressed in the compressor 11 of first subsystem, so that completing the first subsystem heats and (do not spray enthalpy) circulation.
When the second subsystem defrosts, the first subsystem is normally heated.The economizer 16 of first subsystem is used as defrosting The evaporator of second subsystem, the defrost heat of the second subsystem of defrosting do work and heat from itself compressor 21 first The heat that the high-temperature liquid state refrigerant of subsystem is released in the supercooling of economizer 16 of the first subsystem, the first subsystem heated and defrosting The second subsystem realize energy complement so as to rationally utilize system capacity.Not from water-side heat 04 during the defrosting of the second subsystem Absorb heat, it is ensured that whole system can continuous heating when defrosting.
The schematic diagram of second embodiment with reference to shown in Fig. 2 carrys out detailed description second embodiment of the present utility model.
11 it is the compressor of the first subsystem in Fig. 2,1101 be the compressor air suction mouthful of the first subsystem, 1102 is first The exhaust outlet of compressor of subsystem, 1103 be the first subsystem compressor gas supplementing opening；12 be the four-way valve of the first subsystem；13 For the first triple valve of the first subsystem；04 it is system water-side heat (each subsystem share), 0401 is the first subsystem Connect water-side heat gas tube orifice, 0402 for the first subsystem connection water-side heat liquid pipe mouthful；15 be the first subsystem First check valve；16 it is the economizer of the first subsystem, 1601 be the economizer main road entrance of the first subsystem, 1602 is first Subsystem economizer main road outlet, 1603 be the economizer bypass entrance of the first subsystem, 1604 be the first subsystem warp The device bypass that helps is exported；17 be the main road choke valve of the first subsystem；18 be the bypass choke valve of the first subsystem；19 be the first son Second triple valve of system；110 be the ball valve of the first subsystem；111 be the second check valve of the first subsystem；112 be first 3rd check valve of subsystem；113 be the 4th check valve of the first subsystem；114 be the 3rd triple valve of the first subsystem； 115 it is the wind side finned heat exchanger of the first subsystem, 11501 is the wind side finned heat exchanger gas tube orifice of the first subsystem, 11502 For the wind side finned heat exchanger liquid pipe mouthful of the first subsystem；116 be the gas-liquid separator of the first subsystem, 11601 be first son The gas-liquid separator entrance of system, 11602 export for the gas-liquid separator of the first subsystem.117 be the 5th of the first subsystem Check valve.
Likewise, in Fig. 2 21 be the compressor of the second subsystem, 2101 be the second subsystem compressor air suction mouthful, 2102 it is the exhaust outlet of compressor of the second subsystem, 2103 is the compressor gas supplementing opening of the second subsystem；22 be the second subsystem Four-way valve；23 be the first triple valve of the second subsystem；04 it is system water-side heat (each subsystem share), 0403 is the The connection water-side heat gas tube orifice of two subsystems, 0404 for the second subsystem connection water-side heat liquid pipe mouthful；25 be First check valve of two subsystems；26 be the economizer of the second subsystem, 2601 be the second subsystem economizer main road entrance, 2602 it is the economizer main road outlet of the second subsystem, 2603 be the economizer bypass entrance of the second subsystem, 2604 is second The economizer bypass outlet of subsystem；27 be the main road choke valve of the second subsystem；28 be the bypass choke valve of the second subsystem； 29 be the second triple valve of the second subsystem；210 be the ball valve of the second subsystem；211 be the second check valve of the second subsystem； 212 be the 3rd check valve of the second subsystem；213 be the 4th check valve of the second subsystem；214 be the 3rd of the second subsystem Triple valve；215 it is the wind side finned heat exchanger of the second subsystem, 21501 is the wind side finned heat exchanger tracheae of the second subsystem Mouthful, 21502 for the second subsystem wind side finned heat exchanger liquid pipe mouthful；216 be the gas-liquid separator of the second subsystem, 21601 For the gas-liquid separator outlet that the gas-liquid separator entrance of the second subsystem, 21602 are the second subsystem.217 be the second subsystem 5th check valve of system.
Triple valve act as in the end of triple valve three two ends connection simultaneously switch off the 3rd end.With the of the first subsystem It is described as follows exemplified by one triple valve 13：When 1301 ends are connected with 1302 ends, 1303 ends disconnect；When 1301 ends are connected with 1303 ends When, 1302 ends disconnect；When 1302 ends are connected with 1303 ends, 1301 ends disconnect.Remaining is by that analogy.
System have freeze, heat, three kinds of basic models of defrost, each pattern refrigerant circulation flow is described as follows：
1st, kind of refrigeration cycle：
The D ends of the four-way valve 12 of first subsystem are connected with E ends, S ends are connected with C-terminal, the ball valve of the first subsystem 110 dozens Connection is opened, 11402 ends of the 3rd triple valve 114 of the first subsystem are connected with 11403 ends, the second triple valve of the first subsystem 19 1902 ends are connected with 1903 ends, and 1303 ends of the first triple valve 13 of the first subsystem are connected with 1301 ends, the second subsystem The D ends of the four-way valve 22 of system are connected with E ends, S ends are connected with C-terminal, and the ball valve 210 of the second subsystem opens connection, the second subsystem 21402 ends of the 3rd triple valve 214 of system connects with 21403 ends, 2902 ends of the second triple valve 29 of the second subsystem with 2903 ends are connected, and 2301 ends of the first triple valve 23 of the second subsystem are connected with 2302 ends.Two subsystems are mutual during refrigeration Independent cooling.
The HTHP refrigerant medium discharged from the exhaust outlet 1102 of the compressor 11 of the first subsystem passes through the first subsystem The D ends and E ends of the four-way valve 12 of system, enter in the wind side finned heat exchanger 115 of the first subsystem to air heat release from 11501 ends High-temperature liquid state refrigerant is condensed into, 11402 ends and 11403 of the 3rd triple valve 114 by the first subsystem are brought out from 11502 End, then by the second check valve 111 of the first subsystem, then it is split up into main road and bypass two-way refrigerant.Main road high-temperature liquid state Refrigerant into heat release in the economizer 16 of the first subsystem is cooled to that refrigerant is subcooled by 1601 ends.The supercooling come is brought out from 1602 Refrigerant is again by the reducing pressure by regulating flow of main road choke valve 17 and the 3rd check valve 112 of the first subsystem of the first subsystem, by 0402 End enters evaporation endothermic in water-side heat 04 and freezed, and the low-temp low-pressure refrigerant come passes through the first subsystem the is brought out from 0401 1303 ends and 1301 ends of one triple valve 13, then the four-way valve 12 for passing through the first subsystem C-terminal and S ends, by 11601 ends enter Gas-liquid separation in the gas-liquid separator 116 of first subsystem, low-temp low-pressure gaseous coolant is brought out by the first subsystem from 11602 The air entry 1101 of the compressor 11 of system enters to be compressed in the compressor 11 of the first subsystem, so as to complete main road kind of refrigeration cycle. Bypass high-temperature liquid state refrigerant is after the ball valve 110 of the first subsystem again by the throttling drop of bypass choke valve 18 of the first subsystem Press as gas-liquid two-phase refrigerant, entering heat absorption in the economizer 16 of the first subsystem from 1603 ends flashes to gaseous coolant.From 1604 1902 ends and 1903 ends for carrying out the second triple valve 19 that gaseous coolant passes through the first subsystem are brought out, then pass through the first subsystem The gas supplementing opening 1103 of compressor 11 of 5th check valve 117 through the first subsystem enters presses in the compressor 11 of the first subsystem Contracting, so as to complete bypass tonifying Qi circulation.Said process constitutes the kind of refrigeration cycle of the first subsystem.
The HTHP refrigerant medium discharged from the exhaust outlet 2102 of the compressor 21 of the second subsystem passes through the second subsystem The D ends and E ends of the four-way valve 22 of system, enter in the wind side finned heat exchanger 215 of the second subsystem to air heat release from 21501 ends High-temperature liquid state refrigerant is condensed into, 21402 ends and 21403 of the 3rd triple valve 214 by the second subsystem are brought out from 21502 End, then by the second check valve 211 of the second subsystem, then it is split up into main road and bypass two-way refrigerant.Main road high-temperature liquid state Refrigerant into heat release in the economizer 26 of the second subsystem is cooled to that refrigerant is subcooled by 2601 ends.The supercooling come is brought out from 2602 Refrigerant is again by the reducing pressure by regulating flow of main road choke valve 27 and the 3rd check valve 212 of the second subsystem of the second subsystem, by 0404 End enters evaporation endothermic in water-side heat 04 and freezed, and the low-temp low-pressure refrigerant come passes through the second subsystem the is brought out from 0403 2301 ends and 2302 ends of one triple valve 23, then the four-way valve 22 for passing through the second subsystem C-terminal and S ends, enter by 21601 Gas-liquid separation in the gas-liquid separator 216 of two subsystems, low-temp low-pressure gaseous coolant is brought out by the second subsystem from 21602 Compressor 21 air entry 2101 enter the second subsystem compressor 21 in compress, so as to complete main road kind of refrigeration cycle.It is auxiliary Road high-temperature liquid state refrigerant passes through the reducing pressure by regulating flow of bypass choke valve 28 of the second subsystem again after the ball valve 210 of the second subsystem For gas-liquid two-phase refrigerant, enter heat absorption in the economizer 26 of the second subsystem from 2603 ends and be evaporated to gaseous coolant.From 2604 ends Out 2902 ends and 2903 ends for the second triple valve 29 that gaseous coolant passes through the second subsystem, then pass through the second subsystem The gas supplementing opening 2103 of compressor 21 of five check valves 217 through the second subsystem enters to be compressed in the compressor 21 of the second subsystem, So as to complete bypass tonifying Qi circulation.Said process constitutes the kind of refrigeration cycle of the second subsystem.
2nd, circulation is heated：
The D ends of the four-way valve 12 of first subsystem are connected with C-terminal, S ends are connected with E ends, the ball valve of the first subsystem 110 dozens Connection is opened, 11402 ends of the 3rd triple valve 114 of the first subsystem are connected with 11403 ends, the second triple valve of the first subsystem 19 1902 ends are connected with 1903 ends, and 1303 ends of the first triple valve 13 of the first subsystem are connected with 1301 ends, the second subsystem The D ends of the four-way valve 22 of system are connected with C-terminal, S ends are connected with E ends, and the ball valve 210 of the second subsystem opens connection, the second subsystem 21402 ends of the 3rd triple valve 214 of system connects with 21403 ends, 2902 ends of the second triple valve 29 of the second subsystem with 2903 ends are connected, and 2302 ends of the first triple valve 23 of the second subsystem are connected with 2301 ends.Two subsystems are mutual when heating Independent heating.
The HTHP refrigerant medium discharged from the exhaust outlet 1102 of the compressor 11 of the first subsystem passes through the first subsystem The D ends of the four-way valve 12 of system and C-terminal, then the first triple valve 13 by the first subsystem 1301 ends and 1303 ends, from 0401 It is high-temperature liquid state refrigerant to water exothermic condensation to hold into water-side heat 04, brings out and comes again by the first subsystem from 0402 First check valve 15, is then split up into main road and bypass two-way refrigerant.Main road high-temperature liquid state refrigerant enters first by 1601 ends Heat release is cooled to that refrigerant is subcooled in the economizer 16 of subsystem.The supercooling refrigerant come is brought out from 1602 again by the first subsystem 4th check valve 113 of the reducing pressure by regulating flow of main road choke valve 17 and the first subsystem, the wind side of the first subsystem is entered from 11502 ends In finned heat exchanger 115 from air heat absorption be evaporated to low-temp low-pressure refrigerant, brought out from 11501 come again by the first subsystem four The E ends and S ends of port valve 12, enter gas-liquid separation, low-temp low-pressure gas in the gas-liquid separator 116 of the first subsystem by 11601 ends State refrigerant brings out the compressor for entering the first subsystem by the air entry 1101 of the compressor 11 of the first subsystem from 11602 Compressed in 11, so that completing main road heats circulation.Bypass high-temperature liquid state refrigerant passes through again after the ball valve 110 of the first subsystem The reducing pressure by regulating flow of bypass choke valve 18 of first subsystem is gas-liquid two-phase refrigerant, and the economizer of the first subsystem is entered from 1603 ends Heat absorption flashes to gaseous coolant in 16.Brought out from 1604 and carry out the second triple valve 19 that gaseous coolant passes through the first subsystem 1902 ends and 1903 ends, then compressor 11 of the 5th check valve 117 through the first subsystem for passing through the first subsystem gas supplementing opening 1103 enter compression in the compressor 11 of the first subsystem, so as to complete bypass tonifying Qi circulation.Said process constitutes the first subsystem That unites heats circulation.
The HTHP refrigerant medium discharged from the exhaust outlet 2102 of the compressor 21 of the second subsystem passes through the second subsystem The D ends of the four-way valve 22 of system and C-terminal, then the first triple valve 23 by the second subsystem 2302 ends and 2301 ends, from 0403 It is high-temperature liquid state refrigerant to water exothermic condensation to hold into water-side heat 04, brings out and comes again by the second subsystem from 0404 First check valve 25, is then split up into main road and bypass two-way refrigerant.Main road high-temperature liquid state refrigerant enters second by 2601 ends Heat release is cooled to that refrigerant is subcooled in the economizer 26 of subsystem.The supercooling refrigerant come is brought out from 2602 again by the second subsystem 4th check valve 213 of the reducing pressure by regulating flow of main road choke valve 27 and the second subsystem, the wind side of the second subsystem is entered from 21502 ends In finned heat exchanger 215 from air heat absorption be evaporated to low-temp low-pressure refrigerant, brought out from 21501 come again by the second subsystem four The E ends and S ends of port valve 22, gas-liquid separation, low-temp low-pressure gaseous state in 21601 gas-liquid separators 216 for entering the second subsystem Refrigerant brings out the compressor 21 for entering the second subsystem by the air entry 2101 of the compressor 21 of the second subsystem from 21602 Middle compression, so that completing main road heats circulation.Bypass high-temperature liquid state refrigerant is after the ball valve 210 of the second subsystem again by the The reducing pressure by regulating flow of bypass choke valve 28 of two subsystems is gas-liquid two-phase refrigerant, and the economizer 26 of the second subsystem is entered from 2603 ends Middle heat absorption flashes to gaseous coolant.2902 ends for carrying out the second triple valve 29 that gaseous coolant passes through the second subsystem are brought out from 2604 Enter with the gas supplementing opening 2103 at 2903 ends, then compressor 21 of the 5th check valve 217 through the second subsystem for passing through the second subsystem Enter in the compressor 21 of the second subsystem and compress, so as to complete bypass tonifying Qi circulation.Said process constitutes the system of the second subsystem Thermal cycle.
3rd, defrost is circulated：
3.1st, the defrosting of the first subsystem, the second subsystem heat and (do not spray enthalpy)
The D ends of the four-way valve 12 of first subsystem are connected with E ends, S ends are connected with C-terminal, and the ball valve 110 of the first subsystem is closed Close and do not connect, 11402 ends of the 3rd triple valve 114 of the first subsystem are connected with 11401 ends, the first threeway of the first subsystem 1302 ends of valve 13 are connected with 1301 ends, and the D ends of the four-way valve 22 of the second subsystem are connected with C-terminal, S ends are connected with E ends, and second The ball valve 210 of subsystem, which is closed, not to be connected, and 21402 ends of the 3rd triple valve 214 of the second subsystem are connected with 21403 ends, the 2902 ends of the second triple valve 29 of two subsystems are connected with 2901 ends, 2302 ends of the first triple valve 23 of the second subsystem and 2301 ends are connected.When the first subsystem defrosts, the second subsystem heats and (does not spray enthalpy).
The HTHP refrigerant medium discharged from the exhaust outlet 1102 of the compressor 11 of the first subsystem passes through the first subsystem The D ends and E ends of the four-way valve 12 of system, enter heat release defrost in the wind side finned heat exchanger 115 of the first subsystem from 11501 ends, Be condensed into high-temperature liquid state refrigerant, brought out from 11502 come again by the first subsystem the 3rd triple valve 114 11402 ends and 11401 ends, are then gas-liquid two-phase refrigerant by the reducing pressure by regulating flow of bypass choke valve 28 of the second subsystem, enter the from 2603 ends Heat absorption is evaporated to low-temp low-pressure refrigerant in the economizer 26 of two subsystems, and the two or three through the second subsystem after coming is brought out from 2604 2902 ends and 2901 ends of port valve 29, then the first triple valve 13 for passing through the first subsystem 1302 ends and 1301 ends, from 1301 The C-terminal for carrying out four-way valve 12 again by the first subsystem and S ends are brought out, the gas-liquid separation of the first subsystem is entered by 11601 ends Gas-liquid separation in device 116, low-temp low-pressure gaseous coolant brings out the air entry of the compressor 11 by the first subsystem from 11602 1101 enter compression in the compressor 11 of the first subsystem, so as to complete the defrost circulation of the first subsystem.From the second subsystem Compressor 21 exhaust outlet 2102 discharge HTHP refrigerant medium by the second subsystem four-way valve 22 D ends and C End, then the first triple valve 23 by the second subsystem 2302 ends and 2301 ends, from 0403 end enter water-side heat 04 in It is high-temperature liquid state refrigerant to water exothermic condensation, the first check valve 25 for pass through again the second subsystem, high-temperature liquid is brought out from 0404 State refrigerant into heat release in the economizer 26 of the second subsystem is cooled to that refrigerant is subcooled by 2601 ends.The mistake come is brought out from 2602 Cold matchmaker passes through the reducing pressure by regulating flow of main road choke valve 27 of the second subsystem and the 4th check valve 213 of the second subsystem again, from 21502 ends enter in the wind side finned heat exchanger 215 of the second subsystem is evaporated to low-temp low-pressure refrigerant from air heat absorption, from 21501 bring out the E ends and S ends for carrying out four-way valve 22 again by the second subsystem, by 21601 gas-liquids point for entering the second subsystem From gas-liquid separation in device 216, low-temp low-pressure gaseous coolant brings out the air-breathing of the compressor 21 by the second subsystem from 21602 Mouth 2101 enters to be compressed in the compressor 21 of the second subsystem, so that completing the second subsystem heats and (do not spray enthalpy) circulation.
When the first subsystem defrosts, the second subsystem is normally heated.The economizer 26 of second subsystem is used as defrosting The evaporator of first subsystem, the defrost heat of the first subsystem of defrosting do work and heat from itself compressor 11 second The heat that the high-temperature liquid state refrigerant of subsystem is released in the supercooling of economizer 26 of the second subsystem, the second subsystem heated and defrosting The first subsystem realize energy complement so as to rationally utilize system capacity.Not from water-side heat 04 during the defrosting of the first subsystem Absorb heat, it is ensured that whole system can continuous heating when defrosting.
3.2nd, the defrosting of the second subsystem, the first subsystem heat and (do not spray enthalpy)
The D ends of the four-way valve 12 of first subsystem are connected with C-terminal, S ends are connected with E ends, and the ball valve 110 of the first subsystem is closed Close and do not connect, 11402 ends of the 3rd triple valve 114 of the first subsystem are connected with 11403 ends, the second threeway of the first subsystem 1902 ends of valve 19 are connected with 1901 ends, and 1301 ends of the first triple valve 13 of the first subsystem are connected with 1303 ends, the second son The D ends of the four-way valve 22 of system are connected with E ends, S ends are connected with C-terminal, and the ball valve 210 of the second subsystem, which is closed, not to be connected, and second 21402 ends of the 3rd triple valve 214 of subsystem are connected with 21401 ends, 2303 ends of the first triple valve 23 of the second subsystem Connected with 2302 ends.When the second subsystem defrosts, the first subsystem heats and (does not spray enthalpy).
The HTHP refrigerant medium discharged from the exhaust outlet 2102 of the compressor 21 of the second subsystem passes through the second subsystem The D ends and E ends of the four-way valve 22 of system, enter heat release defrost in the wind side finned heat exchanger 215 of the second subsystem from 21501 ends, Be condensed into high-temperature liquid state refrigerant, brought out from 21502 come again by the second subsystem the 3rd triple valve 214 21402 ends and 21401 ends, are then gas-liquid two-phase refrigerant by the reducing pressure by regulating flow of bypass choke valve 18 of the first subsystem, enter the from 1603 ends Heat absorption is evaporated to low-temp low-pressure refrigerant in the economizer 16 of one subsystem, and the two or three through the first subsystem after coming is brought out from 1604 1902 ends and 1901 ends of port valve 19, then the first triple valve 23 for passing through the second subsystem 2303 ends and 2302 ends, from 2302 The C-terminal for carrying out four-way valve 22 again by the second subsystem and S ends are brought out, the gas-liquid separation of the second subsystem is entered by 21601 ends Gas-liquid separation in device 216, low-temp low-pressure gaseous coolant brings out the air entry of the compressor 21 by the second subsystem from 21602 2101 enter compression in the compressor 21 of the second subsystem, so as to complete the defrost circulation of the second subsystem.From the first subsystem Compressor 11 exhaust outlet 1102 discharge HTHP refrigerant medium by the first subsystem four-way valve 12 D ends and C End, then the first triple valve 13 by the first subsystem 1301 ends and 1303 ends, from 0401 end enter water-side heat 04 in It is high-temperature liquid state refrigerant to water exothermic condensation, the first check valve 15 for pass through again the first subsystem, high-temperature liquid is brought out from 0402 State refrigerant into heat release in the economizer 16 of the first subsystem is cooled to that refrigerant is subcooled by 1601 ends.The mistake come is brought out from 1602 Cold matchmaker passes through the reducing pressure by regulating flow of main road choke valve 17 of the first subsystem and the 4th check valve 113 of the first subsystem again, from 11502 ends enter in the wind side finned heat exchanger 115 of the first subsystem is evaporated to low-temp low-pressure refrigerant from air heat absorption, from 11501 bring out the E ends and S ends for carrying out four-way valve 12 again by the first subsystem, by 11601 gas-liquids point for entering the first subsystem From gas-liquid separation in device 116, low-temp low-pressure gaseous coolant brings out the air-breathing of the compressor 11 by the first subsystem from 11602 Mouthfuls 1101 enter in the compressor 11 of the first subsystems and compress, so that complete the first subsystem heats and (do not spray enthalpy) circulation.
When the second subsystem defrosts, the first subsystem is normally heated.The economizer 16 of first subsystem is used as defrosting The evaporator of second subsystem, the defrost heat of the second subsystem of defrosting do work and heat from itself compressor 21 first The heat that the high-temperature liquid state refrigerant of subsystem is released in the supercooling of economizer 16 of the first subsystem, the first subsystem heated and defrosting The second subsystem realize energy complement so as to rationally utilize system capacity.Not from water-side heat 04 during the defrosting of the second subsystem Absorb heat, it is ensured that whole system can continuous heating when defrosting.
It should be noted that in the first embodiment and the second embodiment, triple valve can be combined by several two-way valves Form realize.3rd embodiment shown in Fig. 3 is that the first son of the first embodiment shown in Fig. 1 is replaced with two two-port valves It is described as follows exemplified by first triple valve 13 of system, it is respectively that the first two-port valve 119 and second liang are logical to replace latter two two-port valve Valve 120, other parts are identical with first embodiment shown in Fig. 1.
In the third embodiment, during kind of refrigeration cycle, the first two-way valve 119 of the first subsystem opens connection, the first subsystem Second two-way valve 120 of system is closed and not connected, and other component states are identical with first embodiment, and refrigerant circulation stream is also with the One embodiment is identical, repeats no more.
Correspondingly, when heating circulation, the first two-way valve 119 of the first subsystem opens connection, the second of the first subsystem Two-way valve 120, which is closed, not to be connected, and other component states are identical with first embodiment, refrigerant circulation stream also with first embodiment It is identical, repeat no more.
During defrost, when the defrosting of the first subsystem, the second subsystem heat and (do not spray enthalpy), the first of the first subsystem Two-way valve 119, which is closed, not to be connected, and the second two-way valve 120 of the first subsystem opens connection, and other component states are real with first Apply example identical, refrigerant circulation stream is also identical with first embodiment, repeats no more.When the defrosting of the second subsystem, the first subsystem When heating and (not spraying enthalpy), first the first two-way valve of subsystem 119 opens connection, and first the second two-way valve of subsystem 120 is closed not Connection, other component states are identical with first embodiment, and refrigerant circulation stream is also identical with first embodiment, repeats no more.
Fourth embodiment shown in Fig. 4 is that on the basis of first embodiment, two subsystems use is independently arranged water side and changed Hot device (indoor heat exchanger), namely two subsystems do not share integrated integrated heat exchanger, its operation principle and refrigerant flow direction It is similar with first embodiment, repeat no more.In the fourth embodiment, it can equally realize system when defrosting not from indoor heat exchanger Heat is absorbed, so as to ensure whole air-conditioning system unit continuous heating, reduces fluctuating temperature, improves user's usage comfort.
The 5th embodiment shown in Fig. 5 is that on the basis of second embodiment, two subsystems use is independently arranged water side and changed Hot device (indoor heat exchanger), namely two subsystems do not share integrated integrated heat exchanger, its operation principle and refrigerant flow direction It is similar with first embodiment, repeat no more.In the 5th embodiment, it can equally realize system when defrosting not from indoor heat exchanger Heat is absorbed, so as to ensure whole air-conditioning system unit continuous heating, reduces fluctuating temperature, improves user's usage comfort.
The utility model additionally provides a kind of air-conditioning system, including at least one foregoing air-conditioning system unit, so that real Heat is not absorbed from indoor heat exchanger during existing system defrosting, so as to ensure whole air-conditioning system unit continuous heating, reduce water temperature Fluctuation, improves user's usage comfort.
Preferably, in air-conditioning system of the present utility model, the indoor heat exchanger of all air-conditioning system units can be with integrated For a total heat exchanger, each subsystem of each air-conditioning system unit of correspondence sets corresponding refrigerant interface on total heat exchanger, On the one hand the volume of whole air-conditioning system can be effectively reduced, area occupied is reduced；On the other hand, it also ensure that part subsystem System is during defrosting, and total heat exchanger has heat input all the time, so as to ensure heating effect, improves comfortableness.
As can be seen from the above description, the utility model the above embodiments realize following technique effect：
According to air-conditioning system unit of the present utility model and air-conditioning system, the first subsystem and the second subsystem are changed respectively Frost, during the first subsystem defrost, by the first defrost pipeline make the second economizer bypass access first compression circulation with The refrigerant for circulating the first compression is no longer pass through the first indoor heat exchanger, and the second subsystem is normally heated；Second subsystem defrost Process is on the contrary；So as to ensure whole air-conditioning system unit continuous heating, reduce fluctuating temperature, improve user's usage comfort
Preferred embodiment of the present utility model is the foregoing is only, the utility model is not limited to, for this For the technical staff in field, the utility model can have various modifications and variations.It is all it is of the present utility model spirit and principle Within, any modification, equivalent substitution and improvements made etc. should be included within protection domain of the present utility model.

Claims (8)

1. a kind of air-conditioning system unit, including the first subsystem and the second subsystem；Wherein,
First subsystem includes being interconnected to form the first compressor of the first compression circulation, the first outdoor heat exchanger, the One indoor heat exchanger and for the first economizer to the first compressor Gas-supplying enthalpy-increasing；
Second subsystem includes being interconnected to form the second compressor of the second compression circulation, the second outdoor heat exchanger, the Two indoor heat exchangers and for the second economizer to the second compressor Gas-supplying enthalpy-increasing；
Characterized in that, the air-conditioning system unit also includes：
Selectively make the bypass of second economizer access first compression to circulate so that the refrigerant of the first compression circulation It is no longer pass through the first defrost pipeline of first indoor heat exchanger；And
Selectively make the bypass of first economizer access second compression to circulate so that the refrigerant of the second compression circulation It is no longer pass through the second defrost pipeline of second indoor heat exchanger.
2. air-conditioning system unit according to claim 1, it is characterised in that
The first compression circulation is with first be located between first outdoor heat exchanger and first indoor heat exchanger Contact and the second contact；
The second compression circulation is with the 3rd be located between second outdoor heat exchanger and second indoor heat exchanger Contact and the 4th contact；
The inlet pipe of first economizer include import contact, the port of export respectively with the import contact is connected heats import branch Main road inlet pipe and bypass inlet pipe that pipe and refrigeration entrance branch and entrance point are connected with the import contact respectively；Wherein, institute State and heat the entrance point of entrance branch and be connected with first contact, the entrance point of the refrigeration entrance branch connects with described second Point connection, the port of export of the main road inlet pipe is connected with the entrance point of the main road of first economizer, the bypass inlet pipe The port of export is connected with the bypass import of first economizer, and has been arranged in series bypass throttling arrangement on the bypass inlet pipe；
The outlet pipe of the main road of first economizer include outlet supervisor and with it is described outlet supervisor be connected heat outlet stool With refrigeration outlet stool, wherein, the port of export for heating outlet stool be connected with second contact, it is described refrigeration export prop up The port of export of pipe is connected with first contact, and the outlet supervisor has been arranged in series main road throttling arrangement, described to heat out Check valve has been arranged in series respectively on mouth branch pipe and refrigeration outlet stool；
The inlet pipe of second economizer include import contact, the port of export respectively with the import contact is connected heats import branch Main road inlet pipe and bypass inlet pipe that pipe and refrigeration entrance branch and entrance point are connected with the import contact respectively；Wherein, institute State and heat the entrance point of entrance branch and be connected with the 3rd contact, the entrance point of the refrigeration entrance branch connects with the described 4th Point connection, the port of export of the main road inlet pipe is connected with the entrance point of the main road of second economizer, the bypass inlet pipe The port of export is connected with the bypass import of second economizer, and has been arranged in series bypass throttling arrangement on the bypass inlet pipe；
The outlet pipe of the main road of second economizer include outlet supervisor and with it is described outlet supervisor be connected heat outlet stool With refrigeration outlet stool, wherein, the port of export for heating outlet stool be connected with the 4th contact, it is described refrigeration export prop up The port of export of pipe is connected with the 3rd contact, and the outlet supervisor has been arranged in series main road throttling arrangement, described to heat out Check valve has been arranged in series respectively on mouth branch pipe and refrigeration outlet stool.
3. air-conditioning system unit according to claim 2, it is characterised in that
The first defrost pipeline includes the first inlet pipe and the first outlet pipe, wherein, the entrance point of first inlet pipe and described the The port of export of the main road throttling arrangement of one economizer is connected by control valve, the port of export of first inlet pipe and the described second warp The entrance point connection of the bypass of Ji device；The port of export of the entrance point of first outlet pipe and the bypass of second economizer passes through Control valve is connected, and the port of export of first outlet pipe is connected to first indoor heat exchanger and the described first pressure by control valve Between contracting machine；
The second defrost pipeline includes the second inlet pipe and the second outlet pipe, wherein, the entrance point of second inlet pipe and described the The port of export of the main road throttling arrangement of two economizers is connected by control valve, the port of export of second inlet pipe and the described first warp The entrance point connection of the bypass of Ji device；The port of export of the entrance point of second outlet pipe and the bypass of first economizer passes through Control valve is connected, and the port of export of second outlet pipe is connected to second indoor heat exchanger and the described second pressure by control valve Between contracting machine.
4. air-conditioning system unit according to claim 2, it is characterised in that
The control positioned at the bypass throttling arrangement upstream is also arranged in series on the bypass inlet pipe of first economizer Valve；
The control positioned at the bypass throttling arrangement upstream is also arranged in series on the bypass inlet pipe of second economizer Valve；
The first defrost pipeline includes the first inlet pipe and the first outlet pipe, wherein, the entrance point of first inlet pipe and described the The refrigeration entrance branch of one economizer is connected by control valve, and the port of export of first inlet pipe is connected to second warp Help device bypass inlet pipe the bypass throttling arrangement and the control valve between, the entrance point of first outlet pipe and described the The port of export of the bypass of two economizers is connected by control valve, and the port of export of first outlet pipe is connected to described by control valve Between first indoor heat exchanger and first compressor；
The second defrost pipeline includes the second inlet pipe and the second outlet pipe, wherein, the entrance point of second inlet pipe and described the The refrigeration entrance branch of two economizers is connected by control valve, and the port of export of first inlet pipe is connected to first warp Between the bypass throttling arrangement and the control valve of the bypass inlet pipe of Ji device；The entrance point of second outlet pipe and described the The port of export of the bypass of one economizer is connected by control valve, and the port of export of second outlet pipe is connected to described by control valve Between second indoor heat exchanger and second compressor.
5. the air-conditioning system unit according to claim 3 or 4, it is characterised in that
The control valve is three-way control valve or two logical control valves.
6. air-conditioning system unit according to any one of claim 1 to 4, it is characterised in that
First indoor heat exchanger and second indoor heat exchanger are integrated into an integrated heat exchanger, the integrated heat exchanger Above followed with the first refrigerant inlet and the first refrigerant exit and access second compression for accessing the first compression circulation The second refrigerant inlet and the second refrigerant exit of ring.
7. a kind of air-conditioning system, it is characterised in that including air-conditioning system list any one of at least one claim 1 to 6 Member.
8. air-conditioning system according to claim 7, it is characterised in that
The indoor heat exchanger of all air-conditioning system units is integrated into a total heat exchanger.
CN201621404316.8U 2016-12-20 2016-12-20 Air-conditioning system unit and air-conditioning system Active CN206514563U (en)

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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106766332A (en) * 2016-12-20 2017-05-31 珠海格力电器股份有限公司 Air-conditioning system unit and air-conditioning system
CN115978879A (en) * 2023-03-21 2023-04-18 昆明理工大学 High-efficient roast room-freezer coupled system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106766332A (en) * 2016-12-20 2017-05-31 珠海格力电器股份有限公司 Air-conditioning system unit and air-conditioning system
CN106766332B (en) * 2016-12-20 2023-05-30 珠海格力电器股份有限公司 Air conditioning system unit and air conditioning system
CN115978879A (en) * 2023-03-21 2023-04-18 昆明理工大学 High-efficient roast room-freezer coupled system
CN115978879B (en) * 2023-03-21 2023-06-13 昆明理工大学 Efficient curing barn-freezer coupling system

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