CN107883602A - Coolant circulating system and its control method - Google Patents

Coolant circulating system and its control method Download PDF

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Publication number
CN107883602A
CN107883602A CN201711294135.3A CN201711294135A CN107883602A CN 107883602 A CN107883602 A CN 107883602A CN 201711294135 A CN201711294135 A CN 201711294135A CN 107883602 A CN107883602 A CN 107883602A
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CN
China
Prior art keywords
heat exchange
circulating system
coolant circulating
exchange stream
pipeline
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201711294135.3A
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Chinese (zh)
Other versions
CN107883602B (en
Inventor
杨瑞琦
郑波
梁祥飞
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Gree Electric Appliances Inc of Zhuhai
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Gree Electric Appliances Inc of Zhuhai
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Priority to CN201711294135.3A priority Critical patent/CN107883602B/en
Publication of CN107883602A publication Critical patent/CN107883602A/en
Application granted granted Critical
Publication of CN107883602B publication Critical patent/CN107883602B/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B13/00—Compression machines, plants or systems, with reversible cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
    • F25B47/02—Defrosting cycles
    • F25B47/022—Defrosting cycles hot gas defrosting
    • F25B47/025—Defrosting cycles hot gas defrosting by reversing the cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
    • F28D20/02—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using latent heat
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/029—Control issues
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/24—Storage receiver heat
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/14—Thermal energy storage

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Compression-Type Refrigeration Machines With Reversible Cycles (AREA)

Abstract

The invention discloses a kind of coolant circulating system and its control method.The coolant circulating system includes the compressor connected by the road, outdoor heat exchange portion, indoor heat exchanging part and throttling arrangement, pipeline includes the exhaust outlet and the first pipeline of the heating operation refrigerant inlet of indoor heat exchanging part of connection compressor, and the heating operation refrigerant exit of heat exchanging part and the second pipeline of the heating operation refrigerant inlet in outdoor heat exchange portion in junction chamber, coolant circulating system also includes energy storage module, energy storage module includes the first heat exchange stream and the second heat exchange stream that stores hot/cold portion and can be exchanged heat with storing hot/cold portion, the first end of first heat exchange stream and the second heat exchange stream is connected with the first pipeline, second end of the first heat exchange stream and the second heat exchange stream is connected with second pipeline.The both ends of two heat exchange streams are linked into the main refrigerant pipeline of coolant circulating system so that the participation refrigerant circulation that two heat exchange streams can be independently.

Description

Coolant circulating system and its control method
Technical field
The present invention relates to refrigerating and heating systems technical field, particularly a kind of coolant circulating system and its control method.
Background technology
When heat pump or air-conditioning system are running heating mode, when especially outdoor temperature is relatively low, humidity is larger, Outdoor heat exchanger easily frosting, has a strong impact on heat exchanger performance, it is therefore desirable to defrost is carried out to outdoor heat exchanger, it is currently used Defrost mode includes inverse circulation defrost, hot-gas bypass defrost and accumulation of heat defrost.During inverse circulation defrost, system is kind of refrigeration cycle, is changed Not to indoor heating when white；During hot-gas bypass defrost, defrost can only be carried out by compressor heat supply, therefore the defrost time is relatively Long, being not easy of frost is clean.Both defrost modes can all cause fluctuations in indoor temperature, have a strong impact on indoor comfort.It is and sharp Defrost is carried out with the heat being stored in heat-storing material and can speed up defrost, and fluctuations in indoor temperature is small, is a kind of relatively good Mode.
The existing accumulation of heat using heat-storing material is carried out in the coolant circulating system of defrost, when system carries out defrost, is System still runs heating mode, and there is the storage heater of heat-storing material and outdoor heat exchanger to form a refrigerant circulation circuit, indoor Heat exchanger forms a refrigerant circulation circuit with outdoor heat exchanger, and therefore, storage heater is simultaneously interior as thermal source at this stage Heat exchanger and outdoor heat exchanger heat supply, and the refrigerant in heat exchanger after heat exchange still will be flowed into outdoor heat exchanger indoors, Cause defrosting time very long, influence the operation stability of coolant circulating system.
The content of the invention
In view of this, an object of the present invention is that indoor comfort degree and outdoor heat exchange can be ensured simultaneously by providing one kind The coolant circulating system and its control method of the defrost efficiency of device.
To reach above-mentioned purpose, on the one hand, the present invention adopts the following technical scheme that：
A kind of coolant circulating system, including compressor, outdoor heat exchange portion, indoor heat exchanging part and the throttling dress connected by the road Put, the pipeline includes the exhaust outlet and the first of the heating operation refrigerant inlet of the indoor heat exchanging part for connecting the compressor Pipeline, and the heating operation refrigerant exit of the connection indoor heat exchanging part and the heating operation refrigerant in the outdoor heat exchange portion enter Mouthful the second pipeline, the coolant circulating system also includes energy storage module, and the energy storage module includes storage hot/cold portion and can be with The first heat exchange stream for storing the heat exchange of hot/cold portion and the second heat exchange stream, the first heat exchange stream and described second change The first end of hot flowpath is connected with first pipeline, the second end of the first heat exchange stream and the second heat exchange stream It is connected with second pipeline.
Preferably, first end and the first of described second heat exchange stream of first pipeline in the described first heat exchange stream The first pipeline section between end optionally circulates and ended, and second pipeline is in the second end of the described first heat exchange stream and institute The second pipeline section stated between the second end of the second heat exchange stream optionally circulates and ended.
Preferably, the exhaust outlet of the compressor optionally connects with the described first heat exchange stream or first pipeline section Connect, the heating operation refrigerant inlet of the indoor heat exchanging part optionally with the described second heat exchange stream or first pipeline section Connection.
Preferably, the coolant circulating system also includes the first triple valve and the second triple valve, wherein, first threeway First valve port of valve is connected with the exhaust outlet of the compressor, and the second valve port is connected with the described first heat exchange stream, and the described 3rd Valve port is connected with first pipeline section；First valve port of second triple valve and the heating operation refrigerant of the indoor heat exchanging part Entrance is connected, and the second valve port is connected with the described second heat exchange stream, and the 3rd valve port is connected with first pipeline section；And/or
The coolant circulating system also includes the first switch valve being arranged on second pipeline section.
Preferably, the first end of the first heat exchange stream accesses first pipeline through the first linkage section, and described first Second the second linkage section of end of heat exchange stream accesses second pipeline, and the first end of the second heat exchange stream connects through the 3rd Connect section and access first pipeline, the linkage section of the second end the 4th of the second heat exchange stream accesses second pipeline；
Connect tie point between first linkage section and the 3rd linkage section, and/or, second linkage section with The second branch road is connected between 4th linkage section.
Preferably, second switch valve is provided with the tie point；And/or it is provided with the 3rd on second branch road Switch valve.
Preferably, the coolant circulating system also includes being used to drive the cold of the refrigerant flowing on the second heat exchange stream Matchmaker's drive device.
Preferably, the refrigerant drive device is arranged on the 4th linkage section.
Preferably, it is provided with first flow control valve on second linkage section；And/or
Second flow control valve is provided with 4th linkage section；And/or
Gas-liquid separator is provided with 4th linkage section.
Preferably, it is described to store the heat dissipation wind channel that the storage hot/cold portion is provided through in hot/cold portion.
Preferably, the energy storage module also includes being used for the air flow drive device for forming air-flow in the heat dissipation wind channel.
Preferably, the first fin structure is provided with the wind path wall of the heat dissipation wind channel；And/or
The energy storage module also includes shell, and the storage hot/cold portion is contained in the shell, is provided with the shell Second fin structure.
Preferably, the outdoor heat exchange portion is disposed in the outdoor in machine, and the indoor heat exchanging part is disposed in the interior in machine, described Energy storage module is arranged in the outdoor unit and/or indoor set.
Preferably, a variety of phase-changing energy storage materials are provided with the storage hot/cold portion,
The coolant circulating system is single refrigeration system, the phase point temperature scope of the phase-changing energy storage material for 10 DEG C extremely 20℃；Or
The coolant circulating system is single heating, the phase point temperature scope of the phase-changing energy storage material for 35 DEG C extremely 65℃；Or
The coolant circulating system is heating refrigeration system, and the phase point temperature scope of the phase-changing energy storage material is 10 DEG C To 60 DEG C.
Preferably, the coolant circulating system also includes four-way valve.
On the other hand, the present invention adopts the following technical scheme that：
A kind of control method of coolant circulating system as described above, the coolant circulating system have conventional heating mould Formula, under the conventional heating pattern, the compressor, outdoor heat exchange portion and indoor heat exchanging part is controlled to form heating loop；With/ Or,
The coolant circulating system has defrost pattern, under the defrost pattern, controls the four-way valve to commutate, and control Make the compressor, outdoor heat exchange portion and the first heat exchange stream and form defrost loop, control the indoor heat exchanging part and institute State the second heat exchange stream and form heating loop；And/or
The coolant circulating system has quick heating mode, and under the quick heating mode, control described first is changed Formed and heated back with the compressor, outdoor heat exchange portion and indoor heat exchanging part after hot flowpath and the second heat exchange stream parallel connection Road；And/or
The coolant circulating system has heating accumulation of heat pattern, under the heating accumulation of heat pattern, controls the interior to change Hot portion forms and is connected in parallel with the described first heat exchange stream, the second heat exchange stream；And/or
The coolant circulating system has low load mode, under the low load mode, controls the compressor shutdown, After the first heat exchange stream and the second heat exchange stream parallel connection heating loop is formed with the indoor heat exchanging part；And/or
The coolant circulating system has energy accumulation mode, under the energy accumulation mode, control it is described first heat exchange stream and After the second heat exchange stream parallel connection energy storage loop is formed with the compressor and the outdoor heat exchange portion.
Preferably, indoor environment temperature TA, the temperature for storing hot/cold portion is TS, is made when the coolant circulating system starts When hot, judge that indoor environment temperature is TA and the temperature in storage hot/cold portion is whether TS meets that TA is less than the first predetermined temperature and TS More than the second predetermined temperature, if so, then controlling the coolant circulating system to run quick heating mode, conventional heating is otherwise run Pattern；And/or
Under the conventional heating pattern or quick heating mode, indoor environment temperature is judged for TA and stores hot/cold portion Temperature is whether TS meets that TA is more than the 3rd predetermined temperature and TS is less than the 4th predetermined temperature, if so, then controlling the refrigerant to follow Loop system enters heating accumulation of heat pattern；And/or
When the temperature TS that indoor environment temperature TA meets or exceeds indoor environment target temperature and stores hot/cold portion reaches or surpassed When crossing target regenerator temperature, the coolant circulating system is controlled to enter low load mode；And/or
Under the low load mode, when the temperature for storing hot/cold portion meets condition TS for TS and indoor environment temperature TA<TA During+Δ T5, the coolant circulating system is controlled to exit the low load mode.
Preferably, first predetermined temperature is indoor environment target temperature TAS- Δs T1；And/or
Second predetermined temperature is Tcond+ Δs T2；And/or
3rd predetermined temperature is indoor environment target temperature TAS- Δs T3；And/or
4th predetermined temperature is target regenerator temperature TSS- Δs T4.
Preferably, under the conventional heating pattern, the exhaust outlet of the compressor is controlled to be connected with first pipeline section, The heating operation refrigerant inlet of the indoor heat exchanging part is connected with first pipeline section, the second pipeline section circulation, and described first Flow control valve and the second flow control valve are in full off state；And/or
Under the quick heating mode, the exhaust outlet of the compressor is controlled to be connected with the described first heat exchange stream, institute The heating operation refrigerant inlet and the described second heat exchange stream for stating indoor heat exchanging part be connecteds, and second pipeline section circulates, and described the One branch road and second branch road are opened, and the first flow control valve is in full off state, at the second flow control valve In full-gear；And/or
Under the heating accumulation of heat pattern, the exhaust outlet of the compressor is controlled to be connected with the described first heat exchange stream, institute The heating operation refrigerant inlet and the described second heat exchange stream for stating indoor heat exchanging part be connecteds, and second pipeline section circulates, and described the One branch road and second branch road are opened, and the second flow control valve is in full off state, by adjusting the first flow The aperture of control valve come adjust it is described first heat exchange stream and second heat exchange stream in cold medium flux；And/or
Under the defrost pattern, the exhaust outlet of the compressor is controlled to be connected with the described first heat exchange stream, the room The heating operation refrigerant inlet of interior heat exchanging part is connected with the described second heat exchange stream, the second pipeline section cut-off, described first Road and second branch road are closed, and the first flow control valve is shown in a fully open operation, and are controlled by adjusting the second flow The aperture of valve come adjust it is described second heat exchange stream in cold medium flux；And/or
Under the low load mode, the compressor is controlled to shut down, the exhaust outlet of the compressor and the described first pipe Section connection, the heating operation refrigerant inlet of the indoor heat exchanging part are connected with the described second heat exchange stream, and second pipeline section is cut Only, the tie point and second branch road are opened, and the first flow control valve is in full off state, the second flow Control valve is shown in a fully open operation；And/or
Under the energy accumulation mode, the exhaust outlet of the compressor is controlled to be connected with the described first heat exchange stream, the room The heating operation refrigerant inlet of interior heat exchanging part is connected with first pipeline section, second pipeline section cut-off, the tie point and Second branch road is opened, and the second flow control valve is in full off state, by adjusting the first flow control valve Aperture come adjust it is described first heat exchange stream and second heat exchange stream in cold medium flux.
Preferably, refrigerant drive device is provided with the 4th linkage section, the control method includes：
Under the conventional heating pattern, the refrigerant drive device is controlled to be closed；And/or
Under the quick heating mode, the refrigerant drive device is controlled to be in opening；And/or
Under the heating accumulation of heat pattern, the refrigerant drive device is controlled to be closed；And/or
Under the defrost pattern, the refrigerant drive device is controlled to be in opening；And/or
Under the low load mode, control the refrigerant drive device to be in and be turned on and off state；And/or
Under the energy accumulation mode, the refrigerant drive device is controlled to be closed.
The energy storage module for the coolant circulating system that the application provides includes two heat exchange that can be exchanged heat with storing hot/cold portion Stream, and the both ends of two heat exchange streams are linked into the main refrigerant pipeline of coolant circulating system so that two heat exchange streams Road can be independently participation refrigerant circulation, for example, coolant circulating system carry out defrost when, wherein one heat exchange stream use In to indoor heating, the defrost of another heat exchange stream participation outdoor heat exchanger so that indoor and outdoors form separate Refrigerant circulation, the comfort level of indoor temperature was both ensure that, and in turn ensure that the defrost efficiency of coolant circulating system, further, since two Bar heat exchange stream is linked into the main refrigerant pipeline of coolant circulating system, and therefore, two heat exchange streams can participate in refrigerant The accumulation of heat of the heating of the circulatory system and refrigeration and energy storage module, improve the utilization rate of energy storage module.
Brief description of the drawings
By the description to the embodiment of the present invention referring to the drawings, above-mentioned and other purpose of the invention, feature and Advantage will be apparent from, in the accompanying drawings：
Fig. 1 shows the structural representation of coolant circulating system provided by the invention；
Fig. 2 shows refrigerant flow graph during coolant circulating system operation conventional heating pattern provided by the invention；
Fig. 3 shows refrigerant flow graph when coolant circulating system provided by the invention runs quick heating mode；
Fig. 4 shows refrigerant flow graph during coolant circulating system operation heating accumulation of heat pattern provided by the invention；
Fig. 5 shows refrigerant flow graph during coolant circulating system operation defrost pattern provided by the invention；
Fig. 6 shows refrigerant flow graph during coolant circulating system operation low load mode provided by the invention；
Fig. 7 shows refrigerant flow graph during coolant circulating system operation accumulation of heat pattern provided by the invention；
Fig. 8 shows a kind of front view of the energy storage module of structure type in coolant circulating system provided by the invention；
Fig. 9 shows a kind of top view of the energy storage module of structure type in coolant circulating system provided by the invention；
Figure 10 shows the front view of the energy storage module of another structure type in coolant circulating system provided by the invention；
Figure 11 shows a kind of top view of the energy storage module of structure type in coolant circulating system provided by the invention；
Figure 12 shows the enlarged drawing at A in Figure 11；
Figure 13 shows different phase point temperature energy-accumulation material institutes in the energy storage module of coolant circulating system provided by the invention Accounting, which illustrates, to be intended to.
In figure, 1, compressor；2nd, outdoor heat exchange portion；3rd, indoor heat exchanging part；4th, outdoor restricting element；5th, indoor throttling member Part；6th, four-way valve；7th, energy storage module；71st, hot/cold portion is stored；72nd, the first heat exchange stream；73rd, the second heat exchange stream；74th, first change Heat pipe；75th, the second heat exchanger tube；76th, heat dissipation wind channel；77th, the first fin structure；78th, the second fin structure；79th, shell；8th, first Pipeline；81st, the first pipeline section；9th, the second pipeline；91st, the second pipeline section；10th, the first triple valve；11st, the second triple valve；12nd, first connects Connect section；13rd, the second linkage section；14th, the 3rd linkage section；15th, the 4th linkage section；16th, tie point；17th, the second branch road；18th, drive Dynamic pump；19th, first flow control valve；20th, second flow control valve；21st, gas-liquid separator；22nd, outdoor gas-liquid separator；23、 Blower fan；24th, first switch valve；25th, second switch valve；26th, the 3rd switch valve；27th, the 4th switch valve.
Embodiment
Below based on embodiment, present invention is described, but the present invention is not restricted to these embodiments.Under It is detailed to describe some specific detail sections in the literary detailed description to the present invention.Do not have for a person skilled in the art The description of these detail sections can also understand the present invention completely.In order to avoid obscuring the essence of the present invention, known method, mistake The not narration in detail of journey, flow, element.
In addition, it should be understood by one skilled in the art that provided herein accompanying drawing be provided to explanation purpose, and What accompanying drawing was not necessarily drawn to scale.
Unless the context clearly requires otherwise, otherwise entire disclosure is similar with the " comprising " in claims, "comprising" etc. Word should be construed to the implication included rather than exclusive or exhaustive implication；That is, it is containing for " including but is not limited to " Justice.
In the description of the invention, it is to be understood that term " first ", " second " etc. are only used for describing purpose, without It is understood that to indicate or implying relative importance.In addition, in the description of the invention, unless otherwise indicated, the implication of " multiple " It is two or more.
This application provides a kind of coolant circulating system and its control method, as shown in figure 1, coolant circulating system includes warp Compressor 1, outdoor heat exchange portion 2, indoor heat exchanging part 3 and the throttling arrangement of pipeline connection, outdoor heat exchange portion are disposed in the outdoor in machine, An outdoor heat exchanger can be included, multiple outdoor heat exchangers arranged side by side can also be included, indoor heat exchanging part 3 is disposed in the interior machine In, an indoor heat exchanger can be included, multiple indoor heat exchangers arranged side by side can also be included, throttling arrangement is for example including setting Indoor restricting element 5 in machine and the outdoor restricting element 4 being disposed in the outdoor in machine indoors.Compressor, outdoor heat exchange portion 2, Indoor heat exchanging part 3 and throttling arrangement can form the conventional circulation stream of coolant circulating system.Coolant circulating system can be with It is single refrigeration system, single heating or refrigerating and heating systems, when coolant circulating system is refrigerating and heating systems, refrigerant follows Loop system also includes carrying out commutation so that the four-way valve that coolant circulating system switches between heating mode and refrigeration mode 6。
Further, the coolant circulating system also includes energy storage module 7, and energy storage module 7 includes storage hot/cold portion 71 and can The first heat exchange stream 72 and second with storing the heat exchange of hot/cold portion 71 exchanges heat stream 73, and accumulation of heat herein/cold refers to cold-storage heat Can, it is cold-storage portion when it is used for cold-storage, is heat storage unit when it is used for accumulation of heat, it is preferable that stores in hot/cold portion 71 and fill Have a phase-changing energy storage material, energy storage module 7 also includes two heat exchanger tubes being located in phase-changing energy storage material, two heat exchanger tubes it is interior Chamber respectively constitutes the first heat exchange stream 72 and the second heat exchange stream 73.By the exhaust outlet for connecting compressor 1 and indoor heat exchanging part 3 Connecting line between heating operation refrigerant inlet is defined as the first pipeline 8, the heating operation refrigerant of indoor heat exchanging part 3 herein Entrance is to run refrigerant inlet when heating in coolant circulating system, and in the embodiment shown in fig. 1, the first pipeline 8 is connected to Between four-way valve 6 and indoor heat exchanging part 3.By the heating operation refrigerant exit of heat exchanging part in junction chamber 3 and the system in outdoor heat exchange portion 2 Connecting line between operating cold heat matchmaker's entrance is defined as the second pipeline 9, and the heating operation refrigerant of indoor heat exchanging part 3 herein goes out Mouth runs refrigerant exit when heating in coolant circulating system, and the heating operation refrigerant inlet in outdoor heat exchange portion 2 herein is Refrigerant inlet when heating is run in coolant circulating system, in the embodiment shown in fig. 1, the second pipeline 9 connects to be changed indoors Between hot portion 3 and outdoor heat exchange portion 2.The first end of first heat exchange stream 72 is connected with the first pipeline 8, the second end and the second pipeline 9 connections, the first end of the second heat exchange stream 73 are connected with the first pipeline 8, and the second end is connected with the second pipeline 9, in this way, two are changed The both ends of hot flowpath are linked into the main refrigerant pipeline of coolant circulating system so that what two heat exchange streams can be independently Refrigerant circulation is participated in, for example, when coolant circulating system carries out defrost, wherein a heat exchange stream is used for indoor heating, separately One heat exchange stream participates in the defrost of outdoor heat exchanger so that indoor and outdoors form separate refrigerant circulation, both ensure The comfort level of indoor temperature, in turn ensure that the defrost efficiency (having specific introduction below) of coolant circulating system, further, since two Bar heat exchange stream is linked into the main refrigerant pipeline of coolant circulating system, and therefore, two heat exchange streams can participate in refrigerant The accumulation of heat of the heating of the circulatory system and refrigeration and energy storage module 7, the utilization rate for improving energy storage module 7 (have specific Jie below Continue).
It is further preferred that coolant circulating system is arranged to, first end and the of first pipeline 8 in the first heat exchange stream 72 The first pipeline section 81 between the first end of two heat exchange streams 73 optionally circulates and ended, and the second pipeline 9 is in the first heat exchange stream The second pipeline section 91 between second end on road 72 and the second end of the second heat exchange stream 73 optionally circulates and ended, Ke Yitong Cross and set the switching control pilots such as two-port valve, triple valve to realize the circulation and cut-off of the first pipeline section 81 and the second pipeline section 91.Enter one Step preferably, control valve is arranged to so that the exhaust outlet of compressor 1 optionally with first heat exchange the pipeline section of stream 72 or first 81 connections, the heating operation refrigerant inlet of indoor heat exchanging part 3 optionally connect with the second heat exchange pipeline section 81 of stream 73 or first Connect, in a preferred embodiment, coolant circulating system also includes the first triple valve 10 and the second triple valve 11, wherein, the First valve port of one triple valve 10 is connected with the exhaust outlet of compressor 1, and the second valve port is connected with the first heat exchange stream 72, the 3rd valve Mouth is connected with the first pipeline section 81；First valve port of the second triple valve 11 is connected with the heating operation refrigerant inlet of indoor heat exchanging part 3, Second valve port is connected with the second heat exchange stream 73, and the 3rd valve port is connected with the first pipeline section 81, certainly, the first triple valve 10 and second Triple valve 11 can also can equally realize above-mentioned function by the combination replacement of two-port valve.First is provided with second pipeline section 91 Switch valve 24, to control the circulation and cut-off of the second pipeline section 91.
It is further preferred that the first end of the first heat exchange stream 72 accesses the first pipeline 8 through the first linkage section 12, first changes Second the second linkage section of end 13 of hot flowpath 72 accesses the second pipeline 9, and the first end of the second heat exchange stream 73 is through the 3rd connection Section 14 accesses the first pipeline 8, and the linkage section 15 of the second end the 4th of the second heat exchange stream 73 accesses the second pipeline 9, the first connection Tie point 16 is connected between the linkage section 14 of section 12 and the 3rd, second is connected between the second linkage section 13 and the 4th linkage section 15 Road 17, the switch valve 26 of second switch valve 25 and the 3rd is respectively arranged with the branch road 17 of tie point 16 and second, to cause refrigerant The circulatory system can realize more changeable stream, to enable coolant circulating system to have more abundant function.
It is further preferred that coolant circulating system also includes being used to drive the cold of the refrigerant flowing on the second heat exchange stream 73 Matchmaker's drive device, refrigerant drive device for example can be transfer tube 18, and transfer tube 18 is preferably provided on the 4th linkage section 15, separately Outside, first flow control valve 19 is provided with the second linkage section 13, second flow control valve 20 is provided with the 4th linkage section 15, It can be formed more in coolant circulating system by the aperture regulation of first flow control valve 19 and second flow control valve 20 Changeable refrigerant flow, to enrich the function (having specific introduction below) of coolant circulating system.To be further ensured that system operation Reliability, gas-liquid separator 21 is additionally provided with the 4th linkage section 15, it is preferable that in the direction away from the second heat exchange stream 73 On, transfer tube 18, gas-liquid separator 21 and second flow control valve 20 are sequentially arranged, the second branch road 17 and the 4th linkage section 15 Intersection point is set compared to the transfer tube 18 close to the described second heat exchange stream 73, it is further preferred that the second branch road 17 and the The 4th switch valve 27 is additionally provided between the intersection point and transfer tube 18 of four linkage sections 15, the 4th switch valve 27 is generally in open shape State.The intersection point of second branch road 17 and the second linkage section 13 is compared to the first flow control valve 19 close to the described first heat exchange stream Road 72 is set.
There is the coolant circulating system that the application provides conventional heating pattern, defrost pattern, quick heating mode, heating to store The various modes such as heat pattern, low load mode, energy accumulation mode, user can select suitable mode operation according to the actual requirements, cold Matchmaker's circulatory system can also carry out automatic pattern switching.
Specifically, when coolant circulating system, which starts, to be heated, if indoor environment temperature is higher, such as indoor environment temperature TA More than or equal to the first predetermined temperature, the first predetermined temperature can be that definite value can also be carried out really according to indoor environment target temperature It is fixed, such as the preferred scope that the first predetermined temperature is indoor environment target temperature TAS- Δ T1, Δ T1 is 2 to 4 DEG C, it is further excellent Elect 3 DEG C as, then without using the assistant starting of energy storage module 7, or store 71 temperature of hot/cold portion it is relatively low when, such as store hot/cold portion 71 Temperature TS be less than or equal to the second predetermined temperature, the second predetermined temperature can be that definite value can also be determined according to Tcond, Condensation temperature when Tcond is indoor heat exchanger heating operation, such as the second predetermined temperature are Tcond+ Δ T2, and Δ T2's is preferred Scope is 4 to 6 DEG C, and more preferably 5 DEG C, then energy storage module 7 is invalid, and conventional system is run in coolant circulating system in this situation Heat pattern, in such a mode, control compressor 1, outdoor heat exchange portion 2 and indoor heat exchanging part 3 form heating loop, now accumulation of energy mould Block 7 is not involved in refrigerant circulation.
In the embodiment shown in Figure 2, specific rate-determining steps are：Control the exhaust outlet and the first pipeline section 81 of compressor 1 Connection, i.e. the ac connections of the first triple valve 10, the heating operation refrigerant inlet of indoor heat exchanging part 3 are connected with the first pipeline section 81, i.e., The ac connections of second triple valve 11, the second pipeline section 91 are circulated, i.e., first switch valve 24 is opened, first flow control valve 19 and second Flow control valve 20 is in full off state, and the switch valve 26 of second switch valve 25 and the 3rd is preferably also at open mode, from compression The high-temperature high-pressure refrigerant that machine 1 comes out, successively through four-way valve 6, indoor heat exchanging part 3, indoor restricting element 5, outdoor restricting element 4th, compressor 1 is returned to after outdoor heat exchange portion 2, four-way valve 6, outdoor gas-liquid separator 22, completes heating circulation.
If indoor environment temperature it is relatively low and store 71 temperature of hot/cold portion it is higher when, such as TA is less than the first predetermined temperature and TS During more than the second predetermined temperature, assistant starting can be carried out using energy storage module 7, the quick heating of now coolant circulating system operation Pattern, in such a mode, control first heat exchange stream 72 and second exchange heat the parallel connection of stream 73 after with compressor 1, outdoor heat exchange portion 2 Heating loop is formed with indoor heat exchanging part 3, so, it is possible to participate in heating using the heat on two heat exchange streams, so as to improve Indoor programming rate.
In the embodiment shown in fig. 3, specific rate-determining steps are to control the exhaust outlet of compressor 1 and the first heat exchange to flow Road 72 connects, i.e. the bc connections of the first triple valve 10, the heating operation refrigerant inlet of indoor heat exchanging part 3 and the second heat exchange stream 73 Connection, i.e. the bc connections of the second triple valve 11, the second pipeline section 91 are circulated, i.e., first switch valve 24 is opened, the He of second switch valve 25 3rd switch valve 26 is opened, and first flow control valve 19 is in full off state, and second flow control valve 20 is shown in a fully open operation, Transfer tube 18 starts work, the indoor standard-sized sheet of restricting element 5, the high-temperature high-pressure refrigerant come out from compressor 1, is flowed through four-way valve 6 Enter indoor set, heat exchanging part 3 discharges heat indoors.The refrigerant for flowing through F points is divided into two parts, and a part is through outdoor restricting element After 4 throttlings, turn into low-temperature low-pressure refrigerant, returned to after absorbing heat into outdoor heat exchange portion 2 in compressor 1；Part system After cryogen is then driven and boosted by transfer tube 18, exchanged heat stream 73 by the first heat exchange stream 72 and second of energy storage module 7, Heat is absorbed in energy storage module 7, again as high-temperature high-pressure refrigerant, is convergeed to respectively from A points and B points with going out from compressor 1 In the high-temperature high-pressure refrigerant come, get in together in heat exchanging part 3 and discharge heat.
Under conventional heating module or quick heating mode, when indoor environment temperature is higher and stores the temperature of hot/cold portion 71 When relatively low, such as indoor environment temperature is that TA is more than the 3rd predetermined temperature and stores the temperature in hot/cold portion to be that TS is less than the 4th predetermined Temperature, the 3rd predetermined temperature can be that definite value can also be determined according to indoor environment target temperature, such as the 3rd pre- constant temperature The preferred scope spent for indoor environment target temperature TAS- Δ T3, Δ T3 is 2 to 4 DEG C, more preferably 3 DEG C, and the 4th is predetermined Temperature can be that definite value can also be determined according to target regenerator temperature TSS, such as the 4th predetermined temperature is target accumulation of heat temperature The preferred scope for spending TSS- Δ T4, Δ T4 is 9 to 11 DEG C, more preferably 10 DEG C, can control coolant circulating system to enter system Thermal regenerator pattern, in this mode, heat exchanging part 3 is formed in parallel with the first heat exchange heat exchange stream 73 of stream 72, second in control room Connection, in this way, the refrigerant that compressor 1 is discharged is partly into indoor heat exchanging part 3 to maintain indoor temperature, another part then enters The first heat exchange heat exchange stream 73 of stream 72 and second store the accumulation of heat in hot/cold portion 71.
In the embodiment shown in fig. 4, specific rate-determining steps are to control the exhaust outlet of compressor 1 and the first heat exchange to flow Road 72 is connected, i.e. the bc of the first triple valve 10 is connected, the heating operation refrigerant inlet of indoor heat exchanging part 3 and the second heat exchange stream 73 Connection, the i.e. bc of the second triple valve 11 are connected, and the second pipeline section 91 is circulated, i.e., first switch valve 24 is opened, the He of second switch valve 25 3rd switch valve 26 is opened, and second flow control valve 20 is in full off state, by adjusting opening for first flow control valve 19 Spend to adjust the cold medium flux in the first heat exchange stream 72 and the second heat exchange stream 73, the HTHP system come out from compressor 1 Cryogen, it is divided into 3 parts in A points：A part flows into indoor set through the triple valve 11 of tie point 16 and second, indoors heat exchanging part 3 After middle release heat and throttling, turn into the supercooling refrigerant of middle pressure；Another two parts respectively enter the first heat exchange stream 72 and second Exchange heat stream 73, by accumulation of heat in energy storage module 7, converges afterwards in C points, into the second linkage section 13, with being changed from interior The refrigerant that hot portion 3 comes out converges in E points, afterwards by outdoor restricting element 4 and outdoor heat exchange portion 2, is returned to after absorbing heat Compressor 1, complete heating circulation.
When indoor environment temperature TA meet or exceed indoor environment target temperature and the temperature TS that stores hot/cold portion 71 reach or During more than target regenerator temperature, controllable coolant circulating system enters low load mode, and in this mode, control compressor 1 stops Machine, heating loop, i.e. compressor 1 are formed not with indoor heat exchanging part 3 after the first heat exchange heat exchange parallel connection of stream 73 of stream 72 and second Work, only using the heat of energy storage module 7 to indoor carry out heat supply, when the temperature for storing hot/cold portion 71 is TS and indoor environment temperature Degree TA meets condition TS<During TA+ Δ T5, Δ T5 preferred scope is 7 to 9 DEG C, more preferably 8 DEG C, controls refrigerant circulation System exits low load mode, returns to conventional heating pattern or quick heating mode.
In the embodiment shown in fig. 6, specific rate-determining steps are：Control compressor 1 shuts down, the exhaust outlet of compressor 1 It is connected with the first pipeline section 81, i.e. the ac of the first triple valve 10 is connected, and the heating operation refrigerant inlet of indoor heat exchanging part 3 is changed with second Hot flowpath 73 is connected, i.e. the bc of the second triple valve 11 is connected, and the second pipeline section 91 ends, i.e., first switch valve 24 is closed, and second opens Close the switch valve 26 of valve 25 and the 3rd to open, first flow control valve 19 is in full off state, and second flow control valve 20 is in Full-gear, opens transfer tube 18, and system relies on the heat in energy storage module 7 to maintain indoor heat load, it is only necessary to transfer tube 18 Minimum wasted work, it is possible to maintain indoor air temperature and human comfort's temperature difference smaller, keep certain comfortableness, certainly, When energy storage module 7 is disposed in the interior in machine, transfer tube 18 can also be now not turned on, energy storage module is realized using free convection 7 pairs of indoor heat supplies.
When the outdoor heat exchange portion 2 of coolant circulating system needs defrost, control coolant circulating system enters defrost pattern, Under the pattern, control four-way valve 6 commutates, and controls compressor 1, the heat exchange stream 72 of outdoor heat exchange portion 2 and first to form defrost and return Road, the stream 73 that exchanges heat of heat exchanging part 3 and second forms heating loop in control room, is exchanged heat back in this way, forming separate two Road, auxiliary defrost is carried out using the first heat exchange stream 72, ensures the heating of interior using the second heat exchange stream 73, is ensureing interior Defrost efficiency is improved while usage comfort.
In the embodiment shown in fig. 5, specific rate-determining steps are：The exhaust outlet and the first heat exchange for controlling compressor 1 flow Road 72 is connected, i.e. the bc of the first triple valve 10 is connected, the heating operation refrigerant inlet of indoor heat exchanging part 3 and the second heat exchange stream 73 Connection, the i.e. bc of the second triple valve 11 are connected, and the second pipeline section 91 ends, i.e., first switch valve 24 is closed, the He of second switch valve 25 3rd switch valve 26 is turned off, and first flow control valve 19 is shown in a fully open operation, by adjusting opening for second flow control valve 20 Spend to adjust the cold medium flux in the second heat exchange stream 73, while open transfer tube 18, whole system is divided into non-interference two Individual part：Heat loop and defrost loop.In defrost loop, from the high-temperature high-pressure refrigerant of compressor 1 out, fully enter Heat is discharged in outdoor heat exchange portion to defrost, it is low to be then changed into low temperature with first flow control valve 19 by outdoor restricting element 4 Compression refrigerant, heat is absorbed into the first heat exchange stream 72, is then return in compressor 1, completes defrosting process.Heating back Lu Zhong, the indoor standard-sized sheet of restricting element 5, transfer tube 18 drive the liquid refrigerant in gas-liquid separator 21, in the second heat exchange stream Heat is absorbed in 73, and gets in and heat is discharged in heat exchanging part 3, subsequent refrigerant enters gas-liquid separator 21, completes heating Circulation.Heat in loop, refrigerant is not required to throttle, and flow resistance, therefore the power consumption very little of transfer tube 18 are only existed in loop. Under the pattern, defrosting process is carried out simultaneously with heating operations, and the high-temperature high-pressure refrigerant that compressor 1 is discharged fully enters outdoor and changed Defrosted in hot portion 2, defrosting time be greatly reduced, and heat is absorbed in the higher energy storage module 7 of temperature after throttling, Improve system energy efficiency；The heat supply to interior is not also interrupted simultaneously, ensure that the comfortableness of interior.
Further, coolant circulating system also has energy accumulation mode, under energy accumulation mode, the heat exchange He of stream 72 of control first After the second heat exchange parallel connection of stream 73 energy storage loop is formed with compressor 1 and outdoor heat exchange portion 2.Energy accumulation mode include accumulation of heat pattern and Cold-storage pattern, the refrigerant that compressor 1 is discharged during accumulation of heat pattern initially enter energy storage module 7 after four-way valve 6, enter back into outdoor and change Hot portion 2, four-way valve 6 commutates during cold-storage pattern, and the refrigerant that compressor 1 is discharged initially enters outdoor heat exchange portion 2 again after four-way valve 6 Into energy storage module 7.Coolant circulating system can be when, electricity price less in night using energy source be relatively inexpensive and night temperatures are relatively low Duan Yunhang cold-storage patterns, can outdoor temperature is higher, system energy efficiency is higher at noon period, or night electricity price it is relatively low when Duan Yunhang accumulation of heat patterns, to realize that the reasonable of the energy efficiently utilizes.
Fig. 7 shows the refrigerant flow under accumulation of heat pattern, and specific rate-determining steps are：Control the exhaust outlet and the of compressor 1 One heat exchange stream 72 is connected, i.e. the bc of the first triple valve 10 is connected, the heating operation refrigerant inlet of indoor heat exchanging part 3 and the first pipe Section 81 is connected, i.e. the ac of the second triple valve 11 is connected, and the second pipeline section 91 ends, i.e., first switch valve 24 is closed, second switch valve 25 and the 3rd switch valve 26 open, second flow control valve 20 is in full off state, is controlled by adjusting the first flow The aperture of valve 19 adjusts the cold medium flux in the first heat exchange stream 72 and the second heat exchange stream 73, now, refrigerant without Indoor heat exchanging part 3, the first heat exchange stream 72 and the second heat exchange stream 73 are flowed only through, simultaneously storing heat is discharged in energy storage module 7, Afterwards after first flow control valve 19, outdoor restricting element 4, outdoor heat exchange portion 2, four-way valve 6, outdoor gas-liquid separator 22 Return to compressor 1.
As shown in Figure 8 and Figure 9, it includes shell 79 and the storage hot/cold portion being arranged in shell 79 to the structure of energy storage module 7 71, store in hot/cold portion 71 and be filled with phase-changing energy storage material, the first heat exchanger tube 74 and the second heat exchange are equipped with phase-changing energy storage material Pipe 75, the inner chambers of two heat exchanger tubes respectively constitute the first heat exchange stream 72 and the second heat exchange stream 73, the first heat exchanger tube 74 and the Two heat exchanger tubes 75 are preferably in roundabout coil arrangement, arranged in parallel between two heat exchanger tubes.Shell 79 preferably uses insulation material, Or insulation construction layer is additionally provided with outside shell 79.
Further preferably or alternatively, as shown in FIG. 10 and 11, be provided through in hot/cold portion 71 is stored accumulation of heat/ The heat dissipation wind channel 76 in cold portion, it is further preferred that also include being used for the air flow drive device for forming air-flow in heat dissipation wind channel 76, Air flow drive device for example can be blower fan 23, and blower fan 23 is preferably provided at one end of heat dissipation wind channel 76.In this way, the energy storage module 7 can also participate in air heat-exchange, in order to improve heat transfer effect, it is further preferred that as shown in figure 12, the air channel of heat dissipation wind channel 76 The first fin structure 77 is provided with wall, the second fin structure 78 is provided with shell 79.
Energy storage module 7 can be disposed in the interior in machine, can also be disposed in the outdoor in machine, or be disposed in the interior machine simultaneously In outdoor unit, when energy storage module 7 is disposed in the interior in machine preferably using the structure shown in Figure 10 to 12, so that Energy storage module 7 participates in room air heat exchange, when energy storage module 7 is disposed in the outdoor in machine preferably using the knot shown in Fig. 8 and 9 Structure.
A variety of phase-changing energy storage materials are provided with it is further preferred that storing in hot/cold portion 71, when coolant circulating system is made to be single During cooling system, the phase point temperature of phase-changing energy storage material ranges preferably from 10 DEG C to 20 DEG C.When coolant circulating system heats to be single During system, the phase point temperature of phase-changing energy storage material ranges preferably from 35 DEG C to 65 DEG C, when coolant circulating system freezes for heating During system, the phase point temperature of phase-changing energy storage material ranges preferably from 10 DEG C to 60 DEG C.Different phase point temperature energy-accumulation material institutes Accounting example is preferably as shown in figure 13, it is preferable that phase-changing energy storage material and the phase transformation that phase point temperature is Tevap+ Δs T6 or so The proportion for the phase-changing energy storage material that point temperature is Tcond- Δs T7 or so is higher, evaporation when Tevap therein is refrigeration Temperature, condensation temperature when Tcond is heating, Δ T6 and Δ T7 preferred scope are 5 to 15 DEG C, more preferably 10 DEG C.
The energy storage module 7 for the coolant circulating system that the application provides includes two can be with storing changing for hot/cold portion heat exchange Hot flowpath, and the both ends of two heat exchange streams are linked into the main refrigerant pipeline of coolant circulating system so that two heat exchange Stream can be independently participation refrigerant circulation, for example, coolant circulating system carry out defrost when, wherein one heat exchange stream For participating in the defrost of outdoor heat exchanger to indoor heating, another heat exchange stream so that indoor and outdoors are formed independently of each other Refrigerant circulation, both ensure that the comfort level of indoor temperature, and in turn ensure that the defrost efficiency of coolant circulating system, further, since Two heat exchange stream is linked into the main refrigerant pipeline of coolant circulating system, and therefore, two heat exchange streams can participate in cold The accumulation of heat of the heating of matchmaker's circulatory system and refrigeration and energy storage module 7, improve the utilization rate of energy storage module 7.
For those skilled in the art it is easily understood that on the premise of not conflicting, above-mentioned each preferred scheme can be free Ground combination, superposition.
It should be appreciated that above-mentioned embodiment is only illustrative, and not restrictive, without departing from the basic of the present invention In the case of principle, those skilled in the art can be directed to the various obvious or equivalent modification made of above-mentioned details or replace Change, be all included in scope of the presently claimed invention.

Claims (19)

  1. A kind of 1. coolant circulating system, it is characterised in that including connect by the road compressor, outdoor heat exchange portion, indoor heat exchange Portion and throttling arrangement, the pipeline include heating operation refrigerant of the exhaust outlet with the indoor heat exchanging part for connecting the compressor First pipeline of entrance, and the heating operation refrigerant exit of the connection indoor heat exchanging part and the heating in the outdoor heat exchange portion The second pipeline of refrigerant inlet is run, the coolant circulating system also includes energy storage module, and the energy storage module includes storing hot/cold Portion and can with the first heat exchange stream and the second heat exchange stream of storage hot/cold portion heat exchange, the first heat exchange stream and The first end of the second heat exchange stream is connected with first pipeline, the first heat exchange stream and the second heat exchange stream Second end on road is connected with second pipeline.
  2. 2. coolant circulating system according to claim 1, it is characterised in that first pipeline is in the described first heat exchange stream The first pipeline section between the first end on road and the first end of the second heat exchange stream optionally circulates and ended；And/or
    Second pipeline between the second end of the described first heat exchange stream and the second end of the second heat exchange stream the Two pipeline sections optionally circulate and ended.
  3. 3. coolant circulating system according to claim 2, it is characterised in that the exhaust outlet of the compressor optionally with The first heat exchange stream or first pipeline section connection；And/or
    The heating operation refrigerant inlet of the indoor heat exchanging part is optionally managed with the described second heat exchange stream or described first Section connection.
  4. 4. coolant circulating system according to claim 2, it is characterised in that
    The coolant circulating system also includes the first triple valve and the second triple valve, wherein, the first valve of first triple valve Mouthful be connected with the exhaust outlet of the compressor, the second valve port is connected with described first stream that exchanges heat, the 3rd valve port with it is described First pipeline section connects；
    First valve port of second triple valve is connected with the heating operation refrigerant inlet of the indoor heat exchanging part, the second valve port with The second heat exchange stream connection, the 3rd valve port are connected with first pipeline section；And/or
    The coolant circulating system also includes the first switch valve being arranged on second pipeline section.
  5. 5. coolant circulating system according to claim 3, it is characterised in that the first end of the first heat exchange stream is through first Linkage section accesses first pipeline, and second the second linkage section of end of the first heat exchange stream accesses second pipeline, The first end of the second heat exchange stream accesses first pipeline, the second end of the second heat exchange stream through the 3rd linkage section Second pipeline is accessed through the 4th linkage section；
    Connect tie point between first linkage section and the 3rd linkage section, and/or, second linkage section with it is described The second branch road is connected between 4th linkage section.
  6. 6. coolant circulating system according to claim 5, it is characterised in that be provided with second switch in the tie point Valve；And/or it is provided with the 3rd switch valve on second branch road.
  7. 7. coolant circulating system according to claim 5, it is characterised in that the coolant circulating system also includes being used to drive The refrigerant drive device of refrigerant flowing on the dynamic second heat exchange stream.
  8. 8. coolant circulating system according to claim 7, it is characterised in that the refrigerant drive device is arranged on described On four linkage sections.
  9. 9. coolant circulating system according to claim 5, it is characterised in that be provided with second linkage section first-class Control valve；And/or
    Second flow control valve is provided with 4th linkage section；And/or
    Gas-liquid separator is provided with 4th linkage section.
  10. 10. coolant circulating system according to claim 1, it is characterised in that be provided through institute in the storage hot/cold portion State the heat dissipation wind channel for storing hot/cold portion.
  11. 11. coolant circulating system according to claim 10, it is characterised in that the energy storage module also includes being used in institute State the air flow drive device that air-flow is formed in heat dissipation wind channel.
  12. 12. coolant circulating system according to claim 10, it is characterised in that set on the wind path wall of the heat dissipation wind channel There is the first fin structure；And/or
    The energy storage module also includes shell, and the storage hot/cold portion is contained in the shell, and second is provided with the shell Fin structure.
  13. 13. the coolant circulating system according to one of claim 1 to 12, it is characterised in that the outdoor heat exchange portion is set In outdoor unit, the indoor heat exchanging part is disposed in the interior in machine, and the energy storage module is arranged on the outdoor unit and/or interior In machine.
  14. 14. the coolant circulating system according to one of claim 1 to 12, it is characterised in that set in the storage hot/cold portion There are a variety of phase-changing energy storage materials,
    The coolant circulating system is single refrigeration system, and the phase point temperature scope of the phase-changing energy storage material is 10 DEG C to 20 ℃；Or
    The coolant circulating system is single heating, and the phase point temperature scope of the phase-changing energy storage material is 35 DEG C to 65 ℃；Or
    The coolant circulating system is heating refrigeration system, and the phase point temperature scope of the phase-changing energy storage material is 10 DEG C to 60 ℃。
  15. 15. a kind of control method of coolant circulating system as described in one of claim 1 to 14, the coolant circulating system is also Including four-way valve, it is characterised in that the coolant circulating system has conventional heating pattern, under the conventional heating pattern, The compressor, outdoor heat exchange portion and indoor heat exchanging part is controlled to form heating loop；And/or
    The coolant circulating system has defrost pattern, under the defrost pattern, controls the four-way valve to commutate, and control institute State compressor, outdoor heat exchange portion and the first heat exchange stream and form defrost loop, control the indoor heat exchanging part and described the Two heat exchange streams form heating loop；And/or
    The coolant circulating system has quick heating mode, under the quick heating mode, control the first heat exchange stream Behind road and the second heat exchange stream parallel connection heating loop is formed with the compressor, outdoor heat exchange portion and indoor heat exchanging part；With/ Or,
    The coolant circulating system has heating accumulation of heat pattern, under the heating accumulation of heat pattern, controls the indoor heat exchanging part Formed and be connected in parallel with the described first heat exchange stream, the second heat exchange stream；And/or
    The coolant circulating system has low load mode, under the low load mode, controls the compressor shutdown, described After first heat exchange stream and the second heat exchange stream parallel connection heating loop is formed with the indoor heat exchanging part；And/or
    The coolant circulating system has energy accumulation mode, under the energy accumulation mode, control the first heat exchange stream and described After second heat exchange stream parallel connection energy storage loop is formed with the compressor and the outdoor heat exchange portion.
  16. 16. control method according to claim 15, it is characterised in that indoor environment temperature TA, store the temperature in hot/cold portion Spend for TS, when the coolant circulating system, which starts, to be heated, judge indoor environment temperature TA and store hot/cold portion temperature TS whether Meet that TA is less than the first predetermined temperature and TS is more than the second predetermined temperature, if so, then controlling the coolant circulating system operation fast Fast heating mode, otherwise run conventional heating pattern；And/or
    Under the conventional heating pattern or quick heating mode, judge indoor environment temperature TA and store the temperature TS in hot/cold portion Whether meet that TA is more than the 3rd predetermined temperature and TS is less than the 4th predetermined temperature, if so, then controlling the coolant circulating system to enter Enter to heat accumulation of heat pattern；And/or
    When the temperature TS that indoor environment temperature TA meets or exceeds indoor environment target temperature and stores hot/cold portion meets or exceeds mesh When marking regenerator temperature, the coolant circulating system is controlled to enter low load mode；And/or
    Under the low load mode, when the temperature TS and indoor environment temperature TA that store hot/cold portion meet condition TS<TA+ΔT5 When, control the coolant circulating system to exit the low load mode.
  17. 17. control method according to claim 16, it is characterised in that first predetermined temperature is indoor environment target Temperature TAS- Δs T1；And/or
    Second predetermined temperature is Tcond+ Δ T2, wherein, condensation temperature when Tcond is indoor heat exchanger heating operation； And/or
    3rd predetermined temperature is indoor environment target temperature TAS- Δs T3；And/or
    4th predetermined temperature is target regenerator temperature TSS- Δs T4.
  18. 18. control method according to claim 15, it is characterised in that the coolant circulating system is such as claim 9 Described structure, under the conventional heating pattern, the exhaust outlet of the compressor is controlled to be connected with first pipeline section, it is described The heating operation refrigerant inlet of indoor heat exchanging part is connected with first pipeline section, the second pipeline section circulation, the first flow Control valve and the second flow control valve are in full off state；And/or
    Under the quick heating mode, exhaust outlet and the described first heat exchange fluid communication, the room of the compressor are controlled The heating operation refrigerant inlet of interior heat exchanging part and the described second heat exchange fluid communication, the second pipeline section circulation, described first Road and second branch road are opened, and the first flow control valve is in full off state, and the second flow control valve is in complete Open state；And/or
    Under the heating accumulation of heat pattern, exhaust outlet and the described first heat exchange fluid communication, the room of the compressor are controlled The heating operation refrigerant inlet of interior heat exchanging part is connected with the described second heat exchange stream, the second pipeline section circulation, described first Road and second branch road are opened, and the second flow control valve is in full off state, are controlled by adjusting the first flow The aperture of valve come adjust it is described first heat exchange stream and it is described second heat exchange stream in cold medium flux；And/or
    Under the defrost pattern, the exhaust outlet and the described first heat exchange fluid communication of the compressor are controlled, the interior is changed The heating operation refrigerant inlet in hot portion and the described second heat exchange fluid communication, second pipeline section cut-off, the tie point and Second branch road is closed, and the first flow control valve is shown in a fully open operation, by adjusting the second flow control valve Aperture come adjust it is described second heat exchange stream in cold medium flux；And/or
    Under the low load mode, the compressor is controlled to shut down, the exhaust outlet of the compressor connects with first pipeline section Connect, the heating operation refrigerant inlet of the indoor heat exchanging part is connected with the described second heat exchange stream, the second pipeline section cut-off, institute State tie point and second branch road is opened, the first flow control valve is in full off state, the second flow control Valve is shown in a fully open operation；And/or
    Under the energy accumulation mode, the exhaust outlet and the described first heat exchange fluid communication of the compressor are controlled, the interior is changed The heating operation refrigerant inlet in hot portion connects with first pipeline section, second pipeline section cut-off, the tie point and described Second branch road is opened, and the second flow control valve is in full off state, by the aperture for adjusting the first flow control valve To adjust the cold medium flux in the first heat exchange stream and the second heat exchange stream.
  19. 19. control method according to claim 18, it is characterised in that refrigerant driving is provided with the 4th linkage section Device, the control method include：
    Under the conventional heating pattern, the refrigerant drive device is controlled to be closed；And/or
    Under the quick heating mode, the refrigerant drive device is controlled to be in opening；And/or
    Under the heating accumulation of heat pattern, the refrigerant drive device is controlled to be closed；And/or
    Under the defrost pattern, the refrigerant drive device is controlled to be in opening；And/or
    Under the low load mode, control the refrigerant drive device to be in and be turned on and off state；And/or
    Under the energy accumulation mode, the refrigerant drive device is controlled to be closed.
CN201711294135.3A 2017-12-08 2017-12-08 Refrigerant circulation system and control method thereof Active CN107883602B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711294135.3A CN107883602B (en) 2017-12-08 2017-12-08 Refrigerant circulation system and control method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711294135.3A CN107883602B (en) 2017-12-08 2017-12-08 Refrigerant circulation system and control method thereof

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Publication Number Publication Date
CN107883602A true CN107883602A (en) 2018-04-06
CN107883602B CN107883602B (en) 2023-07-25

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CN110471475A (en) * 2019-08-14 2019-11-19 中国商用飞机有限责任公司 Humidity control system and the application method realized by it
WO2020143777A1 (en) * 2019-01-11 2020-07-16 青岛海尔智能技术研发有限公司 Defrosting system and refrigerator
CN111442552A (en) * 2020-05-11 2020-07-24 珠海格力电器股份有限公司 Cascade type refrigerant circulating system, air conditioning equipment and control method of cascade type refrigerant circulating system
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CN114110815A (en) * 2021-12-02 2022-03-01 珠海格力节能环保制冷技术研究中心有限公司 Air conditioning system, control method and device thereof, air conditioning equipment and storage medium
CN115388573A (en) * 2022-08-03 2022-11-25 浙江吉利控股集团有限公司 Heat exchange system for vehicle and vehicle with heat exchange system
WO2023040249A1 (en) * 2021-09-15 2023-03-23 青岛海尔空调器有限总公司 Air conditioning system and control method therefor

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WO2020143777A1 (en) * 2019-01-11 2020-07-16 青岛海尔智能技术研发有限公司 Defrosting system and refrigerator
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CN115388573A (en) * 2022-08-03 2022-11-25 浙江吉利控股集团有限公司 Heat exchange system for vehicle and vehicle with heat exchange system
CN115388573B (en) * 2022-08-03 2023-12-08 浙江吉利控股集团有限公司 Heat exchange system for vehicle and vehicle with heat exchange system

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