CN107178926A - The control method of air-conditioning system and air-conditioning system - Google Patents

The control method of air-conditioning system and air-conditioning system Download PDF

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Publication number
CN107178926A
CN107178926A CN201710526024.4A CN201710526024A CN107178926A CN 107178926 A CN107178926 A CN 107178926A CN 201710526024 A CN201710526024 A CN 201710526024A CN 107178926 A CN107178926 A CN 107178926A
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CN
China
Prior art keywords
valve port
mouthful
air
port
valve
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.)
Pending
Application number
CN201710526024.4A
Other languages
Chinese (zh)
Inventor
屈金祥
曾昭顺
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Midea Group Co Ltd
GD Midea Air Conditioning Equipment Co Ltd
Original Assignee
Midea Group Co Ltd
Guangdong Midea Refrigeration Equipment Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Midea Group Co Ltd, Guangdong Midea Refrigeration Equipment Co Ltd filed Critical Midea Group Co Ltd
Priority to CN201710526024.4A priority Critical patent/CN107178926A/en
Publication of CN107178926A publication Critical patent/CN107178926A/en
Priority to PCT/CN2017/117887 priority patent/WO2019000868A1/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B13/00Compression machines, plants or systems, with reversible cycle
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00Fluid-circulation arrangements
    • F25B41/20Disposition of valves, e.g. of on-off valves or flow control valves
    • F25B41/26Disposition of valves, e.g. of on-off valves or flow control valves of fluid flow reversing valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00Fluid-circulation arrangements
    • F25B41/30Expansion means; Dispositions thereof
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00Arrangement or mounting of control or safety devices
    • F25B49/02Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • F25B49/022Compressor control arrangements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2400/00General 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
    • F25B2400/07Details of compressors or related parts
    • F25B2400/074Details of compressors or related parts with multiple cylinders
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2400/00General 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
    • F25B2400/07Details of compressors or related parts
    • F25B2400/077Compressor control units, e.g. terminal boxes, mounted on the compressor casing wall containing for example starter, protection switches or connector contacts
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2600/00Control issues
    • F25B2600/02Compressor control

Abstract

The invention discloses a kind of air-conditioning system and the control method of air-conditioning system.Air-conditioning system includes compressor, commutation component, outdoor heat exchanger, indoor heat exchanger, automatically controlled heat exchanger, flash vessel and reversal valve.Compressor can be operated in single cylinder pattern or twin-tub pattern, and compressor is formed with the first air entry, the second air entry, gas supplementing opening, control mouth and exhaust outlet.The component that commutates includes the first valve port, the second valve port, the 3rd valve port and the 4th valve port, and the gas outlet of flash vessel is connected with the gas supplementing opening of compressor.Reversal valve include first, second mouthful and the 3rd mouthful, first connects control mouth, second mouthful of first valve port of connection, 3rd mouthful of the 4th valve port of connection, first can selectively communicate with second mouthful or the 3rd mouthful, so that control mouth can selectively communicate with the first valve port or the 4th valve port, when control mouth is connected with the 4th valve port, compressor operating is in single cylinder pattern, when control mouth is connected with the first valve port, and compressor operating is in twin-tub pattern.

Description

The control method of air-conditioning system and air-conditioning system
Technical field
The present invention relates to household electrical appliance technical field, more specifically, it is related to the control of a kind of air-conditioning system and air-conditioning system Method processed.
Background technology
With the raising of people's material life, air conditioner is increasingly becoming the requirement of people's life, and people are also to air-conditioning Higher requirement is proposed in terms of refrigerating capacity, heating capacity, efficiency, traditional air-conditioning can meet general cooling and warming Operating mode, but in high-temperature refrigeration, low-temperature heating operating mode, ability will decay, and efficiency can also be deteriorated.
The content of the invention
Embodiment of the present invention provides the control method of a kind of air-conditioning system and air-conditioning system.
The air-conditioning system of embodiment of the present invention includes:
Compressor, the compressor can be operated in single cylinder pattern or twin-tub pattern, and the compressor is formed with the first suction Gas port, the second air entry, gas supplementing opening, control mouth and exhaust outlet, the compressor include the first cylinder and the second cylinder, described the One air entry connects first cylinder, and second air entry connects second cylinder;
Commutate component, and the commutation component includes the first valve port, the second valve port, the 3rd valve port and the 4th valve port, described the One valve port can selectively communicate with second valve port or the 3rd valve port, and the 4th valve port can be selectively communicated with Second valve port or the 3rd valve port, first valve port connect the exhaust outlet, the 4th valve port connection described the One air entry and second air entry, the control mouth can selectively communicate with first valve port or the 4th valve Mouthful;
Outdoor heat exchanger and indoor heat exchanger, the first port of the outdoor heat exchanger connect second valve port, described The second port of outdoor heat exchanger connects the first port of the indoor heat exchanger, the second port connection of the indoor heat exchanger 3rd valve port;
Flash vessel, the flash vessel includes two refrigerants mouthful and gas outlet, described two refrigerants mouths respectively with the outdoor The second port of heat exchanger is connected with the first port of the indoor heat exchanger, and the gas outlet is connected with the gas supplementing opening;
Automatically controlled heat exchanger, the automatically controlled heat exchanger is used to exchange heat to the electric-controlled parts of the air-conditioning system, described automatically controlled to change Hot device is connected with a refrigerant mouthful;With
Reversal valve, the reversal valve include first, second mouthful and the 3rd mouthful, the first connects the control mouth, Second mouthful of connection, first valve port, the 3rd mouthful of connection the 4th valve port, the first can be optionally Described second mouthful is connected or described 3rd mouthful, so that the control mouth can selectively communicate with first valve port or institute The 4th valve port is stated, when the control mouth is connected with the 4th valve port, the compressor operating is in the single cylinder pattern, the control When donsole is connected with first valve port, the compressor operating is in the twin-tub pattern.
In the air-conditioning system that embodiment of the present invention is provided, compressor can be according to operating mode in single cylinder pattern and twin-tub pattern Middle switching, and flash vessel can give compressor Gas-supplying enthalpy-increasing, the cooling and warming ability of air-conditioning system full working scope be improved, while air-conditioning The electric-controlled parts of system are radiated by connecting the refrigerant in automatically controlled heat exchanger, and the good heat dissipation effect of electric-controlled parts improves air-conditioning The stability of system work.
In some embodiments, the reversal valve is magnetic valve, and the magnetic valve is used to connect described the when power is off Flatly with described second mouthful, the first and described 3rd mouthful are connected when being powered;Or
The magnetic valve is used to connect the first and described second mouthful when being powered, and described first is connected when power is off Mouthful with described 3rd mouthful.
In some embodiments, the reversal valve is pressure-control valve, and the pressure-control valve is used in first pressure Effect is lower to connect the first and described second mouthful, and the first and described 3rd mouthful are connected under second pressure effect, The first pressure is more than the second pressure.
In some embodiments, the air-conditioning system also includes:
Detecting element, the detecting element is used for the frequency for detecting the compressor;With
Controller, the controller is used to control the first when the frequency is less than default first frequency threshold value Connected with described 3rd mouthful so that the compressor operating is in the single cylinder pattern;And it is pre- for being more than or equal in the frequency If second frequency threshold value when control described first to be connected with described second mouthful so that the compressor operating is in the twin-tub mould Formula.
In some embodiments, the first frequency threshold value is less than or equal to the second frequency threshold value.
In some embodiments, the air-conditioning system also includes first throttle element and the second restricting element, described the One restricting element connects the second port and one of them described refrigerant mouthful of the outdoor heat exchanger, and second restricting element connects Connect the first port and another described refrigerant mouthful of the indoor heat exchanger.
In some embodiments, the automatically controlled heat exchanger be connected to the first throttle element and the flash vessel it Between, or the automatically controlled heat exchanger is connected between second restricting element and the flash vessel.
In some embodiments, the air-conditioning system includes air-conditioner outdoor unit, and the air-conditioner outdoor unit includes housing, institute State flash vessel to be arranged in the housing, the flash vessel is fixed on the housing by the first damper element.
In some embodiments, the air-conditioning system includes air-conditioner outdoor unit, and the air-conditioner outdoor unit includes housing, institute State reversal valve to be arranged in the housing, the reversal valve is fixed on the housing by the second damper element.
The control method of the air-conditioning system of embodiment of the present invention, for controlling air-conditioning system, the air-conditioning system includes:
Compressor, the compressor can be operated in single cylinder pattern or twin-tub pattern, and the compressor is formed with the first suction Gas port, exhaust outlet, the second air entry, gas supplementing opening and control mouth, the compressor include the first cylinder and the second cylinder, described the One air entry connects first cylinder, and second air entry connects second cylinder;
Commutate component, and the commutation component includes the first valve port, the second valve port, the 3rd valve port and the 4th valve port, described the One valve port can selectively communicate with second valve port or the 3rd valve port, and the 4th valve port can be selectively communicated with Second valve port or the 3rd valve port, first valve port connect the exhaust outlet, the 4th valve port connection described the One air entry and second air entry, the control mouth can selectively connect first valve port or the 4th valve port;
Outdoor heat exchanger and indoor heat exchanger, the first port of the outdoor heat exchanger connect second valve port, described The second port of outdoor heat exchanger connects the first port of the indoor heat exchanger, the second port connection of the indoor heat exchanger 3rd valve port;
Flash vessel, the flash vessel includes two refrigerants mouthful and gas outlet, described two refrigerants mouths respectively with the outdoor The second port of heat exchanger is connected with the first port of the indoor heat exchanger, and the gas outlet is connected with the gas supplementing opening;
Automatically controlled heat exchanger, the automatically controlled heat exchanger is used to exchange heat to the electric-controlled parts of the air-conditioning system, described automatically controlled to change Hot device is connected with a refrigerant mouthful;With
Reversal valve, the reversal valve include first, second mouthful and the 3rd mouthful, the first connects the control mouth, Second mouthful of connection, first valve port, the 3rd mouthful of connection the 4th valve port, the first can be optionally Described second mouthful is connected or described 3rd mouthful, so that the control mouth can selectively communicate with first valve port or institute The 4th valve port is stated, when the control mouth is connected with the 4th valve port, the compressor operating is in the single cylinder pattern, the control When donsole is connected with first valve port, the compressor operating is in the twin-tub pattern;
Described control method includes:
Detect the frequency of the compressor;
When the frequency is less than default first frequency threshold value, control the first to be connected with described 3rd mouthful so that The compressor operating is in the single cylinder pattern;With
When the frequency is more than or equal to default second frequency threshold value, the first and second mouthful of company are controlled Passing to makes the compressor operating in the twin-tub pattern.
The additional aspect and advantage of embodiments of the present invention will be set forth in part in the description, partly will be from following Description in become obvious, or recognized by the practice of embodiments of the present invention.
Brief description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become from description of the accompanying drawings below to embodiment is combined Obtain substantially and be readily appreciated that, wherein:
Fig. 1 is the view of the air-conditioning system of embodiment of the present invention;
Fig. 2 is the view of the air-conditioning system of embodiment of the present invention;
Fig. 3 is the schematic flow sheet of the control method of the air-conditioning system of embodiment of the present invention;
Fig. 4 is the diagrammatic cross-section of the flash vessel of embodiment of the present invention;
Fig. 5 is the part-structure schematic diagram of the escape pipe of the flash vessel of embodiment of the present invention;;
Fig. 6 is the internal structure schematic diagram of the air-conditioner outdoor unit of embodiment of the present invention;
Fig. 7 is the enlarged diagram of VII part of Fig. 6 air-conditioner outdoor unit;
Fig. 8 is the flash vessel of embodiment of the present invention and the schematic perspective view of the first damper element;
Fig. 9 is the flash vessel of embodiment of the present invention and the schematic perspective view of the first damper element;
Figure 10 is the enlarged diagram of Ⅹ part of Fig. 6 air-conditioner outdoor unit;
The schematic perspective view of second damper element of the air-conditioner outdoor unit of Figure 11 present embodiments.
Main element symbol description:
Flash vessel 100, cylinder 10, host cavity 11, the bottom 12 of cylinder 10, the side wall 13 of cylinder 10, the top of cylinder 10 14th, the 15, first refrigerant pipe 20 of perforation, the 21, first refrigerant inlet 22 of the first refrigerant mouthful, the second refrigerant pipe 30, inserting end the 31, the 3rd Refrigerant mouthful the 32, second refrigerant mouthful 33, escape pipe 40, gas outlet 41, the side wall 42 of escape pipe 40, air admission hole 43, air-conditioner outdoor unit 102nd, housing 110, chassis 112, side plate 114, dividing plate 116, the first damper element 120, the first block rubber 120, clip slot 122, One jaws 124, the second jaws 126, reversal valve 130, valve body 131, first 132, second mouthful 133, the 3rd mouthful 134, second subtract Shake element 140, the second block rubber 140, mounting groove 141, trough of belt 142, bandage 150, air-conditioning system 200, compressor 210, first Air entry 211, exhaust outlet 212, gas supplementing opening 213, the second air entry 214, control mouth 215, the first cylinder 216, the second cylinder 217th, commutation component 220, the first valve port 221, the second valve port 222, the 3rd valve port 223, the 4th valve port 224, outdoor heat exchanger 230th, the first port 231 of outdoor heat exchanger 230, the second port 232 of outdoor heat exchanger 230, indoor heat exchanger 240, interior The first port 241 of heat exchanger 240, first throttle element 250, the first port 251 of first throttle element 250, first throttle The second port 252 of element 250, the second restricting element 260, the throttling member of first port 261, second of the second restricting element 260 The second port 262 of part 260, detecting element 270, controller 280, automatically controlled heat exchanger 290.
Embodiment
Embodiments of the present invention are described further below in conjunction with accompanying drawing.Same or similar label is from beginning in accompanying drawing To representing same or similar element or element with same or like function eventually.
In addition, the embodiments of the present invention described below in conjunction with the accompanying drawings are exemplary, it is only used for explaining the present invention's Embodiment, and be not considered as limiting the invention.
In the present invention, unless otherwise clearly defined and limited, fisrt feature can be with "above" or "below" second feature It is that the first and second features are directly contacted, or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists Second feature " on ", " top " and " above " but fisrt feature are directly over second feature or oblique upper, or be merely representative of Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be One feature is immediately below second feature or obliquely downward, or is merely representative of fisrt feature level height less than second feature.
Fig. 1 and 2 is referred to, the air-conditioning system 200 of embodiment of the present invention includes compressor 210, commutation component 220, room External heat exchanger 230, indoor heat exchanger 240, flash vessel 100, automatically controlled heat exchanger 290 and reversal valve 130.
Compressor 210 can be operated in single cylinder pattern or twin-tub pattern.Compressor 210 is formed with the first air entry 211, row Gas port 212, gas supplementing opening 213, the second air entry 214 and control mouth 215.Compressor 210 includes the first cylinder 216 and the second cylinder 217.First air entry 211 connects the first cylinder 216, and the second air entry 214 connects the second cylinder 217.
The component 220 that commutates includes the first valve port 221, the second valve port 222, the 3rd valve port 223 and the 4th valve port 224.First Valve port 221 can selectively communicate with the second valve port 222 or the 3rd valve port 223, and the 4th valve port 224 can selectively communicate with Two valve ports 222 or the 3rd valve port 223.First valve port 221 connects exhaust outlet 212, and the 4th valve port 224 connects the first air entry 211 With the second air entry 214, control mouth 215 can selectively communicate with the first valve port 221 or the 4th valve port 224.
The first port 231 of outdoor heat exchanger connects the second valve port 222, the communication chamber of second port 232 of outdoor heat exchanger The first port 241 of interior heat exchanger, the second port 242 of indoor heat exchanger connects the 3rd valve port 223.
Flash vessel 100 includes two refrigerants mouthful (the first refrigerant mouthful the 21, second refrigerant mouthful 33) and gas outlet 41, two refrigerants Mouth (21,33) is connected with the second port 232 of outdoor heat exchanger and the first port 241 of indoor heat exchanger respectively, gas outlet 41 Connected with gas supplementing opening 213.
Automatically controlled heat exchanger 290 is used to exchange heat to the electric-controlled parts of air-conditioning system 200, automatically controlled heat exchanger 290 and a refrigerant Mouth (21,33) connection.
Reversal valve 130 includes first 132, second mouthful 133 and the 3rd mouthful 134, the connection control mouth 215 of first 132, the Two mouthful of 133 the first valve port 221 of connection, the 3rd mouthful of 134 the 4th valve port 224 of connection.First 132 can selectively communicate with second Mouthfuls 133 or the 3rd mouthful 134, so that control mouth 215 can selectively communicate with the first valve port 221 or the 4th valve port 224, control When donsole 215 is connected with the 4th valve port 224, compressor 210 is operated in single cylinder pattern, and control mouth 215 is connected with the first valve port 221 When, compressor 210 is operated in twin-tub pattern.
In the air-conditioning system 200 that embodiment of the present invention is provided, compressor 210 can be according to operating mode in single cylinder pattern and double Switch in cylinder pattern, and flash vessel 100 can give the Gas-supplying enthalpy-increasing of compressor 210, improve the refrigerated medium of the full working scope of air-conditioning system 200 Heat energy power, while the electric-controlled parts of air-conditioning system 200 are radiated by connecting the refrigerant in automatically controlled heat exchanger 290, electric-controlled parts Good heat dissipation effect, improve air-conditioning system 200 work stability.
Specifically, the electric-controlled parts of air-conditioning system 200 include frequency converter, and electric-controlled parts can be used for changing the work of compressor 210 The frequency of work, the rotating speed of cooling fan etc., electric-controlled parts can produce substantial amounts of heat at work and temperature rises, electric-controlled parts Temperature is too high to reduce the precision of electric-controlled parts control, or even can increase the risk that electric-controlled parts catch fire etc..Automatically controlled heat exchanger 290 by transmitting refrigerant and so that refrigerant undergoes phase transition and absorbed heat in automatically controlled heat exchanger 290, to reduce the temperature of electric-controlled parts Degree, improves the stability of electric-controlled parts work.
In some embodiments, reversal valve 130 be magnetic valve, magnetic valve be used for when power is off connection first 132 with Second mouthful 133, first 132 and the 3rd mouthful 134 are connected when being powered.Or magnetic valve is used to connect first when being powered 132 and second mouthful 133, first 132 and the 3rd mouthful 134 are connected when power is off.In this way, reversal valve 130 is easily controlled to cause Compressor 210 easily switches between single cylinder pattern and twin-tub pattern.
In some embodiments, reversal valve is pressure-control valve, and pressure-control valve is used to connect under first pressure effect Lead to first 132 and second mouthful 133, first 132 and the 3rd mouthful 134 are connected under second pressure effect.Specifically, act on The pressure of pressure-control valve can be used for the valve core movement of control pressure control valve, and first pressure can be more than second pressure, first Pressure might be less that second pressure.
It will be appreciated, of course, that the concrete form of reversal valve 130 is not limited to the magnetic valve and pressure-control valve of the example above, Can be any switchably connection first 132 and second mouthful 133, first 132 and the 3rd mouthful 134 of reversal valve 130.
Fig. 1 and Fig. 2 are referred to, in some embodiments, air-conditioning system 200 also includes first throttle element 250 and the Two restricting elements 260.The second port 232 and one of refrigerant mouthful 21 of the connection outdoor heat exchanger sum of first throttle element 250, The first port 241 and another refrigerant mouthful 33 of second restricting element 260 connection indoor heat exchanger.
Specifically, in some embodiments, the restricting element 260 of first throttle element 250 and second can be electronics Expansion valve.In this way, the restricting element 260 of first throttle element 250 and second flows through heat exchanger (230,240) and sudden strain of a muscle available for adjustment The pressure of the refrigerant of steaming device 100, and by adjusting the aperture of the restricting element 260 of first throttle element 250 and second, so that flash distillation Device 100 gives the air compensation of compressor 210 in the reasonable scope.
Referring again to Fig. 1 and Fig. 2, in some embodiments, automatically controlled heat exchanger 290 is connected to first throttle element 250 Between flash vessel 100.Or automatically controlled heat exchanger 290 is connected between the second restricting element 260 and flash vessel 100.
In this way, when no matter air-conditioning system 200 is operated in kind of refrigeration cycle or heats circulation, by the cold of automatically controlled heat exchanger 290 The temperature that matchmaker only passes through in a restricting element (restricting element 260 of first throttle element 250 or second), automatically controlled heat exchanger 290 Degree can be effectively prevented from forming condensed water on the surface of automatically controlled heat exchanger 290 all without too low.
So that automatically controlled heat exchanger 290 is arranged between first throttle element 250 and flash vessel 100 as an example, when air-conditioning system 200 When being operated in kind of refrigeration cycle, the first valve port 221 and the second valve port 222 of the component 220 that commutates are turned on and the 4th valve port 224 and the 3rd Valve port 223 is turned on.
When air-conditioning system 200 is operated in kind of refrigeration cycle, the flow direction of refrigerant is as follows:Discharged from the exhaust outlet 212 of compressor 210 HTHP refrigerant through commutate component 220 the first valve port 221 and the second valve port 222 enter it is cold in outdoor heat exchanger 230 Solidifying, refrigerant is discharged after being exchanged heat in outdoor heat exchanger 230 with outdoor environment from the second port 232 of outdoor heat exchanger 230. The liquid phase refrigerant being then discharged out passes through the reducing pressure by regulating flow of first throttle element 250, and the refrigerant after throttling passes through automatically controlled heat exchanger 290, enter flash vessel 100 from the first refrigerant mouthful 21 by the gas-liquid two-phase refrigerant of automatically controlled heat exchanger 290, and in flash vessel 100 Interior carry out gas-liquid separation.The gaseous coolant isolated from flash vessel 100 flows through gas supplementing opening 213 from gas outlet 41 and returns to compressor In 210, circulation is proceeded from the discharge of exhaust outlet 212 of compressor 210 after overcompression.Isolated from flash vessel 100 Liquid refrigerants flows out from refrigerant mouthful 33, and then refrigerant enters indoor heat exchange after the reducing pressure by regulating flow of the second restricting element 260 In device 240.Refrigerant carries out heat exchange with indoor environment in heat exchanger 240 indoors and undergone phase transition, and indoor environment is freezed, The gas phase refrigerant discharged from indoor heat exchanger 240 by commutation component 220 the 3rd valve port 223 and the 4th valve port 224, then from the One air entry 211 and the second air entry 214 enter in compressor 210, complete kind of refrigeration cycle.
So that automatically controlled heat exchanger 290 is arranged between first throttle element 250 and flash vessel 100 as an example, when air-conditioning system 200 It is operated in when heating circulation, the first valve port 221 and the 3rd valve port 223 of the component 220 that commutates are turned on and the 4th valve port 224 and second Valve port 222 is turned on.
Air-conditioning system 200 is operated in when heating circulation, and the flow direction of refrigerant is as follows:Discharged from the exhaust outlet 212 of compressor 210 High pressure gaseous refrigerant, through commutation component 220 the first valve port 221 and the 3rd valve port 223 get in heat exchanger 240 In, refrigerant and the indoor environment of the HTHP in indoor heat exchanger 240 carry out phase-change heat-exchange, with to indoor environment system Heat.The liquid phase refrigerant discharged from indoor heat exchanger 240 passes through the second restricting element 260 and carries out first time throttling, cold after throttling Matchmaker passes through automatically controlled heat exchanger 290, is entered by the gas-liquid two-phase mixing refrigerant of automatically controlled heat exchanger 290 in flash vessel 100, flashes Device 100 carries out gas-liquid separation to refrigerant.The gaseous coolant isolated from flash vessel 100 flows through gas supplementing opening 213 from gas outlet 41 Return in compressor 210, proceed circulation from the discharge of exhaust outlet 212 of compressor 210 after compression.From flash vessel 100 The liquid refrigerants isolated is flowed out from refrigerant mouthful 21, and outdoor heat exchange is entered after being depressured through the second throttle of first throttle element 250 In device 230, after the refrigerant evaporation heat exchange in outdoor heat exchanger 230, by the second valve port 222 and the 4th of the component 220 that commutates Valve port 224, enters in compressor 210, completion heats circulation from the first air entry 211 and the second air entry 214.
It should be noted that in embodiments of the present invention, the refrigerant flowed into from control mouth 215 can be for the second cylinder 217 back pressures provided, that is to say, that the pressure for the refrigerant discharged from the second cylinder 217 is with the refrigerant pressure of control mouth 215 Increase and increase, reduce with the reduction of the refrigerant pressure of control mouth 215, flowing to the refrigerant of control mouth 215 can not flow into Second cylinder 217.
Referring to Fig. 1, when reversal valve 130 connects first 132 and the 3rd mouthful 134, the valve port of control mouth 215 and the 4th 224 connections, and the 4th valve port 224 is connected with the second air entry 214, that is to say, that the refrigerant pressure of control mouth 215 is inhaled with second The refrigerant pressure of gas port 214 is equal.Now compressor 210 to the refrigerant flowed back to from the second air entry 214 without carrying out again Compression, the refrigerant for entering the second cylinder 217 from the second air entry 214 is directly discharged from the second cylinder 217, is the second cylinder 217 have neither part nor lot in compression, and compressor 210 is operated in single cylinder pattern.
Referring to Fig. 2, when reversal valve 130 connects first 132 and second mouthful 133, the valve port of control mouth 215 and first 221 connection, that is, control mouth 215 refrigerant pressure be equal to exhaust outlet 212 refrigerant pressure.And the second air entry 214 and Four valve ports 224 are connected, and the refrigerant pressure of the 4th valve port 224 is less than the refrigerant pressure of exhaust outlet 212, that is to say, that inhaled from second Gas port 214 flows back to refrigerant pressure of the refrigerant pressure less than control mouth 215 of the second cylinder 217.The now refrigerant of the second cylinder 217 Need compressor 210 to flow out the second cylinder 217 after being compressed, be that the second cylinder 217 participates in compression, compressor 210 It is operated in twin-tub pattern.
It should be noted that no matter air-conditioning system 200 is operated in kind of refrigeration cycle or heats circulation, compressor 210 all may be used To be operated in single cylinder pattern or twin-tub pattern, to improve the cooling and warming ability of air-conditioning system 200.
Referring again to Fig. 1 and Fig. 2, in some embodiments, air-conditioning system 200 also includes detecting element 270 and control Device 280.Detecting element 270 is used for the frequency for detecting compressor 210.Controller 280 is used to be less than the default first frequency in frequency First 132 is controlled to be connected with the 3rd mouthful 134 so that compressor 210 is operated in single cylinder pattern during rate threshold value;And in frequency First 132 is controlled to be connected with second mouthful 133 so that compressor operating is double during more than or equal to default second frequency threshold value Cylinder pattern.
In addition, referring to Fig. 3, the control method of the air-conditioning system 200 of embodiment of the present invention comprises the following steps:
S10:Detect the frequency of compressor 210;
S20:When frequency is less than default first frequency threshold value, control first is connected with the 3rd mouthful so that compressor work Make in single cylinder pattern;With
S30:When frequency is more than or equal to default second frequency threshold value, control first is connected with second mouthful so as to press Contracting machine is operated in twin-tub pattern.
In the control method of above-mentioned air-conditioning system 200 and air-conditioning system 200, by detecting the frequency of compressor 210, in frequency Rate make it that compressor 210 is operated in twin-tub pattern when being more than second frequency threshold value, improve that air-conditioning system 200 is quick to be heated and quickly The ability of refrigeration.And cause compressor 210 to be operated in twin-tub pattern, air-conditioning system 200 when frequency is less than first frequency threshold value Efficiency it is higher.
In some embodiments, first frequency threshold value is less than or equal to second frequency threshold value.That is, compressor 210 frequencies being operated under twin-tub pattern are more than the frequency that compressor 210 is operated under single cylinder pattern.Specifically, first frequency Threshold value can be 33 hertz, 25 hertz, 20 hertz etc., and second frequency threshold value can be 47 hertz, 50 hertz, 52 hertz etc., the One frequency threshold and second frequency threshold value can make a choice according to the species of compressor 210.
Referring to Fig. 4, in some embodiments, flash vessel 100 includes cylinder 10, the first refrigerant pipe 20, the second refrigerant Pipe 30 and escape pipe 40.First refrigerant pipe 20, the second refrigerant pipe 30 and escape pipe 40 are stretched into cylinder 10.
Cylinder 10 is formed with host cavity 11.Escape pipe 40, the first refrigerant pipe 20 and the second refrigerant pipe 30 stretch into host cavity In 11.The corrosion-resistant material such as can use copper of cylinder 10 is made.It is preferred that cylinder 10 is cylindrical.Certainly, cylinder 10 Can also be in other shapes such as square tube shapes.
It is appreciated that cylinder 10 is formed with and confesses tracheae 40, the first refrigerant pipe 20 and the second refrigerant pipe 30 and stretch into host cavity Perforation 15 in 11.Sealed around perforation 15 with escape pipe 40, the first refrigerant pipe 20 and the second refrigerant pipe 30 to prevent cylinder Secondary refrigerant leakage in body 10.
First refrigerant pipe 20 is cylindrical, and the first refrigerant pipe 20 is made such as the corrosion-resistant material as copper.In some realities Apply in mode, the first refrigerant pipe 20 is cylindrical.It is appreciated that in other embodiments, the first refrigerant pipe 20 can be in side The other shapes such as tubular.
First refrigerant pipe 20 is stretched into host cavity 11 from the bottom 12 of cylinder 10, it is preferred that the axial direction of the first refrigerant pipe 20 With the axially in parallel of cylinder 10 or overlapping.First refrigerant pipe 20 is formed with the refrigerant inlet 22 of the first refrigerant mouthful 21 and first.First Refrigerant mouthful 21 is located at outside host cavity 11, and the first refrigerant inlet 22 is located in host cavity 11.First refrigerant inlet 22 connects host cavity 11 and first refrigerant mouthfuls 21.
The refrigerant of gas-liquid binary states from the first refrigerant mouthfuls 21 after the first refrigerant inlet 22 enters in host cavity 11, it is gaseous Refrigerant is separated from the refrigerant of liquid.The refrigerant of liquid is located at the bottom of cylinder 10, and gaseous refrigerant is located at cylinder 10 Top.
First refrigerant inlet 22 is opened in the side wall of the first refrigerant pipe 20, and the first 22 points of refrigerant inlet is multigroup, Duo Zu Axial uniform intervals of one refrigerant inlet 22 along the first refrigerant pipe 20 are set.Multigroup first refrigerant inlet 22 can cause refrigerant can To be rapidly introduced into host cavity 11.In some embodiments, the quantity of every group of first refrigerant inlet 22 is multiple, same group Multiple first refrigerant inlets 22 being provided at circumferentially spaced along the first refrigerant pipe 20.It is preferred that same group of multiple first refrigerants Circumferential uniform intervals of the entrance 22 along the first refrigerant pipe 20 are set.It is appreciated that in other embodiments, every group of first refrigerant The quantity of entrance 22 can be single.
Second refrigerant pipe 30 is cylindrical, and the second refrigerant pipe 30 is made such as the corrosion-resistant material as copper.In some realities Apply in mode, the second refrigerant pipe 30 is cylindrical.It is appreciated that in other embodiments, the second refrigerant pipe 30 can be in side The other shapes such as tubular.In the example of fig. 4, the second refrigerant pipe 30 is stretched into host cavity 11 from the side wall 13 of cylinder 10, and second The inserting end 31 of refrigerant pipe 30 is close to the bottom 12 of cylinder 10.In the example of figure 9, the second refrigerant pipe 30 is from the bottom of cylinder 10 12 stretch into host cavity 11.
Second refrigerant pipe 30 is formed with the second refrigerant inlet 32 and the second refrigerant mouthful 33.Second refrigerant inlet 32, which is located at, to be housed In chamber 11.Second refrigerant mouthful 33 is located at outside host cavity 11.Second refrigerant inlet 32 connection host cavity 11 and second refrigerant mouthful 33.Such as This, liquid refrigerants in cylinder 10 can enter from the second refrigerant inlet 32 in second refrigerant pipe 30 after from 33 rows of the second refrigerant mouthful Go out to outside host cavity 11.
In some embodiments, the quantity of the second refrigerant inlet 32 is multiple, multiple second refrigerant inlets 32 along second The circumferential uniform intervals of refrigerant pipe 30 are set.
It should be noted that refrigerant can be flowed into host cavity 11 from the first refrigerant mouthful 21, it is cold then in turn through first Flowed out to after matchmaker's entrance 22, the second refrigerant inlet 32 and the second refrigerant mouth 33 outside host cavity 11.Refrigerant can also be from the second refrigerant Mouth 33 is flowed into host cavities 11, after the second refrigerant inlet 32, the first refrigerant inlet 22 and the first refrigerant mouth 21 Flow out to outside host cavity 11.
Incorporated by reference to Fig. 5, escape pipe 40 is cylindrical, and escape pipe 40 is made such as the corrosion-resistant material as copper.Escape pipe 40 stretch into host cavity 11 from the top 14 of cylinder 10.In this way, the gas positioned at the top of cylinder 10 can enter in escape pipe 40 To flow out host cavity 11.It is preferred that the axial direction of escape pipe 40 and the axially in parallel of cylinder 10 or overlapping and being configured so that escape pipe 40 easily stretch into host cavity 11.The depth D1 that escape pipe 40 is stretched into host cavity 11 is the depth D2 of host cavity 11 1/3- 1/2.The gas in host cavity 11 is so conducive to enter in escape pipe 40.
Escape pipe 40 is formed with gas outlet 41, and gas outlet 41 is located at outside host cavity 11.The side wall 42 of escape pipe 40 is offered Multigroup air admission hole 43, multigroup air admission hole 43 is located in host cavity 11, axially spaced-apart distribution of multigroup air admission hole 43 along escape pipe 40, Every group of connection gas outlet 41 of air admission hole 43 and host cavity 11.So make it that the gas (gaseous coolant) in host cavity 11 can be quick Ground flows out host cavity 11, to reduce the air pressure of host cavity 11, so as to improve the effect of the gas-liquid separation of flash vessel 100.
Specifically, the gas that multigroup air admission hole 43 can increase in host cavity 11 enters the area of escape pipe 40, so as to To increase the flow of the gas entered in escape pipe 40, as the gas in host cavity 11 flows out, the air pressure in host cavity 11 subtracts Small, the gas in the refrigerant liquid in host cavity 11 can be separated to cooling medium liquid in vitro, so as to improve the gas-liquid of flash vessel 100 The effect of separation.
Manufactured for the ease of escape pipe 40, it is preferred that axial uniform intervals distribution of the multigroup air admission hole 43 along escape pipe 40. In other words, the distance between two groups of air admission holes 43 of arbitrary neighborhood are equal.
In some embodiments, air admission hole 43 is rounded, it will be understood that in other embodiments, and air admission hole 43 can With in the shape such as polygon is fan-shaped or square.
In some embodiments, the quantity of every group of air admission hole 43 is multiple, and same group of multiple air admission holes 43 are along outlet The circumferentially-spaced distribution of pipe 40.It is preferred that circumferential uniform intervals distribution of same group of the multiple air admission holes 43 along escape pipe 40.Such as This, can open up to form more air admission holes 43 to increase the stream that the gas in host cavity 11 enters escape pipe 40 on escape pipe 40 Amount.It is appreciated that in other embodiments, the quantity of every group of air admission hole 43 can be single.
Fig. 6 and Fig. 7 is referred to, in some embodiments, air-conditioning system 200 is included outside air-conditioner outdoor unit 102, air-conditioning room Machine 102 includes housing 110 and flash vessel 100.Flash vessel 100 is arranged in housing 110.Flash vessel 100 passes through the first damping member Part 120 is fixed on housing 110.
In the air-conditioner outdoor unit 102 of embodiment of the present invention, the first damper element 120 can absorb the shake of flash vessel 100 It is dynamic, so as to reduce the noise of the formation of flash vessel 100, improve Consumer's Experience.
Specifically, housing 110 includes chassis 112 and side plate 114.The connecting base plate 112 of side plate 114.First damper element 120 It is fixed on chassis 112, flash vessel 100 is fixed on the first damper element 120.So it is easy to the first damper element 120 and sudden strain of a muscle The installation of steaming device 100.First damper element 120 is for example fixed on by way of bonding on chassis 112, and for example passes through screw etc. Fastener is fixed on chassis 112.
In some embodiments, the first damper element 120 is the first block rubber 120.It is appreciated that in other embodiment party In formula, the first damper element 120 can be the flexible elements such as spring.
In some embodiments, the first block rubber 120 is in cuboid, it will be understood that in other embodiments, and first Block rubber 120 can be in the other shapes such as round table-like or cylindric.
Specifically, the first block rubber 120 offers clip slot 122, and clip slot 122 clamps flash vessel 100 so that flash vessel 100 is solid It is scheduled on the first block rubber 120.In this way, clip slot 122 causes flash vessel 100 is dismantled more to facilitate.It should be noted that clip slot 122 clamping flash vessels 100 refer to that flash vessel 100 can't be relative to the first block rubber when air-conditioner outdoor unit 102 vibrates 120 are moved.
As shown in figure 8, in one example, clip slot 122 clamps the first refrigerant pipe 20.In this way, due to the first refrigerant pipe 20 Size it is smaller, facilitate clip slot 122 to step up the first refrigerant pipe 20 so that flash vessel 100 is fixed on the first block rubber 120.
As shown in figure 9, in another example, being stretched into the second refrigerant pipe 30 from the bottom 12 of cylinder 10 in cylinder 10 When, the quantity of clip slot 122 is two, and two clip slots 122 clamp the first refrigerant pipe 20 and the second refrigerant pipe 30 respectively.So can be with Flash vessel 100 is further avoided to be moved relative to the first block rubber 120.
Specifically, each clip slot 122 is formed with the first jaws 124 and the second jaws 126, and the first refrigerant pipe 20 and second is cold Matchmaker's pipe 30 passes through the corresponding jaws 126 of first jaws 124 and second, so that the second refrigerant pipe 30 and the part of the second refrigerant pipe 30 position In in the first block rubber 120, so that clip slot 122 can clamp the first refrigerant pipe 20 and the second refrigerant pipe 30.
Fig. 6 and Figure 10 is referred to, in some embodiments, air-conditioner outdoor unit 102 also includes reversal valve 130, reversal valve 130 are fixed on housing 110 by the second damper element 140.
In this way, the second damper element 140 can absorb the vibrations of reversal valve 130, so as to reduce making an uproar for the formation of reversal valve 130 Sound, improves Consumer's Experience.
Specifically, such as solenoid directional control valve 130 of reversal valve 130, is so easy to control reversal valve 130 to work.
In some embodiments, housing 110 includes dividing plate 116, the space that the spaced side plate 114 of dividing plate 116 is surrounded.Second Damper element 140 is fixed on dividing plate 116.Reversal valve 130 is fixed on the second damper element 140.In this way, dividing plate 116 can be with Larger position is provided to install for the second damper element 140.
In some embodiments, the second damper element 140 includes the second block rubber 140.It is appreciated that in other implementations In mode, the second damper element 140 can be the flexible members such as spring.
Specifically, incorporated by reference to Figure 11, the second block rubber 140 offers mounting groove 141, and reversal valve 130 includes valve body 131, Valve body 131 is contained in mounting groove 141 at least in part.In this way, mounting groove 141 causes the block rubber 140 of reversal valve 130 and second Connection area it is larger, be conducive to reversal valve 130 to install stable.In some embodiments, valve body 131 is partly contained in peace In tankage 141.
It is preferred that the shape and size of valve body 131 and the shape and matching size of mounting groove 141.In some embodiments In, valve body 131 is cylindrical, and the inner surface of mounting groove 141 is circular arc with the profile of valve body 131 to match.It is appreciated that peace The size of tankage 141 is slightly larger than the size of mounting groove 141, so that valve body 131 can be installed in mounting groove 141.
In some embodiments, reversal valve 130 bundlees the block rubber 140 of valve body 131 and second by bandage 150 and fixed On the second block rubber 140.In this way, the fixed form of reversal valve 130 is simple, reversal valve 130 is easily from the second block rubber 140 On disassemble.
Specifically, trough of belt 142 is offered on the second block rubber 140, trough of belt 142 is located at valve body 131 radially.Bandage 150 pass through trough of belt 142 and bundle valve body 131 along the circumferencial direction of valve body 131.Moved in this way, trough of belt 142 can limit bandage 150 It is dynamic so that reversal valve 130, which is arranged on the second block rubber 140, more to be stablized.
In some embodiments, the quantity of bandage 150 is two, two bandages 150 axially spaced-apart along valve body 131 point Cloth.
In the description of this specification, reference term " some embodiments ", " embodiment ", " some embodiment party Formula ", " exemplary embodiment ", " example ", the description of " specific example " or " some examples " mean with reference to the embodiment Or specific features, structure, material or the feature of example description are contained at least one embodiment of the present invention or example. In this manual, identical embodiment or example are not necessarily referring to the schematic representation of above-mentioned term.Moreover, description Specific features, structure, material or feature can be in any one or more embodiments or example with suitable side Formula is combined.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative importance Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or Implicitly include at least one described feature.In the description of the invention, " multiple " are meant that at least two, such as two, Three, unless otherwise specifically defined.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned Embodiment is changed, changed, replacing and modification, and the scope of the present invention is limited by claim and its equivalent.

Claims (10)

1. a kind of air-conditioning system, it is characterised in that including:
Compressor, the compressor can be operated in single cylinder pattern or twin-tub pattern, the compressor be formed with the first air entry, Second air entry, gas supplementing opening, control mouth and exhaust outlet, the compressor include the first cylinder and the second cylinder, and described first inhales Gas port connects first cylinder, and second air entry connects second cylinder;
Commutate component, and the commutation component includes the first valve port, the second valve port, the 3rd valve port and the 4th valve port, first valve Mouth can selectively communicate with second valve port or the 3rd valve port, and the 4th valve port can selectively communicate with described Second valve port or the 3rd valve port, first valve port connect the exhaust outlet, and the 4th valve port connection described first is inhaled Gas port and second air entry, the control mouth can selectively communicate with first valve port or the 4th valve port;
Outdoor heat exchanger and indoor heat exchanger, the first port of the outdoor heat exchanger connect second valve port, the outdoor The second port of heat exchanger connects the first port of the indoor heat exchanger, and the second port connection of the indoor heat exchanger is described 3rd valve port;
Flash vessel, the flash vessel includes two refrigerants mouthful and gas outlet, described two refrigerants mouths respectively with the outdoor heat exchange The second port of device is connected with the first port of the indoor heat exchanger, and the gas outlet is connected with the gas supplementing opening;
Automatically controlled heat exchanger, the automatically controlled heat exchanger is used to exchange heat to the electric-controlled parts of the air-conditioning system, the automatically controlled heat exchanger Connected with a refrigerant mouthful;With
Reversal valve, the reversal valve include first, second mouthful and the 3rd mouthful, the first connects the control mouth, described Second mouthful of connection first valve port, the 3rd mouthful of connection the 4th valve port, the first can be selectively communicated with Described second mouthful or described 3rd mouthful, so that the control mouth can selectively communicate with first valve port or described Four valve ports, when the control mouth is connected with the 4th valve port, the compressor operating is in the single cylinder pattern, the control mouth When being connected with first valve port, the compressor operating is in the twin-tub pattern.
2. air-conditioning system according to claim 1, it is characterised in that the reversal valve is magnetic valve, the magnetic valve is used In connecting the first and described second mouthful when power is off, the first and described 3rd mouthful are connected when being powered;Or
The magnetic valve be used for be powered when connect the first and described second mouthful, connect when power is off the first and Described 3rd mouthful.
3. air-conditioning system according to claim 1, it is characterised in that the reversal valve is pressure-control valve, the pressure Control valve is used to connect the first and described second mouthful under first pressure effect, connects described under second pressure effect First with described 3rd mouthful, the first pressure be more than the second pressure.
4. air-conditioning system according to claim 1, it is characterised in that the air-conditioning system also includes:
Detecting element, the detecting element is used for the frequency for detecting the compressor;With
Controller, the controller is used to control the first and institute when the frequency is less than default first frequency threshold value The 3rd mouthful of connection is stated so that the compressor operating is in the single cylinder pattern;And it is default for being more than or equal in the frequency Described first is controlled to be connected with described second mouthful during second frequency threshold value so that the compressor operating is in the twin-tub pattern.
5. air-conditioning system according to claim 4, it is characterised in that the first frequency threshold value is less than or equal to described the Two frequency thresholds.
6. air-conditioning system according to claim 1, it is characterised in that the air-conditioning system also include first throttle element and Second restricting element, the first throttle element connects the second port and one of them described refrigerant of the outdoor heat exchanger Mouthful, second restricting element connects the first port and another described refrigerant mouthful of the indoor heat exchanger.
7. air-conditioning system according to claim 6, it is characterised in that the automatically controlled heat exchanger is connected to the first throttle Between element and the flash vessel, or the automatically controlled heat exchanger is connected between second restricting element and the flash vessel.
8. air-conditioning system according to claim 1, it is characterised in that the air-conditioning system includes air-conditioner outdoor unit, described Air-conditioner outdoor unit includes housing, and the flash vessel is arranged in the housing, and the flash vessel is fixed by the first damper element On the housing.
9. air-conditioning system according to claim 1, it is characterised in that the air-conditioning system includes air-conditioner outdoor unit, described Air-conditioner outdoor unit includes housing, and the reversal valve is arranged in the housing, and the reversal valve is fixed by the second damper element On the housing.
10. a kind of control method of air-conditioning system, it is characterised in that the air-conditioning system includes:
Compressor, the compressor can be operated in single cylinder pattern or twin-tub pattern, the compressor be formed with the first air entry, Exhaust outlet, the second air entry, gas supplementing opening and control mouth, the compressor include the first cylinder and the second cylinder, and described first inhales Gas port connects first cylinder, and second air entry connects second cylinder;
Commutate component, and the commutation component includes the first valve port, the second valve port, the 3rd valve port and the 4th valve port, first valve Mouth can selectively communicate with second valve port or the 3rd valve port, and the 4th valve port can selectively communicate with described Second valve port or the 3rd valve port, first valve port connect the exhaust outlet, and the 4th valve port connection described first is inhaled Gas port and second air entry, the control mouth can selectively connect first valve port or the 4th valve port;
Outdoor heat exchanger and indoor heat exchanger, the first port of the outdoor heat exchanger connect second valve port, the outdoor The second port of heat exchanger connects the first port of the indoor heat exchanger, and the second port connection of the indoor heat exchanger is described 3rd valve port;
Flash vessel, the flash vessel includes two refrigerants mouthful and gas outlet, described two refrigerants mouths respectively with the outdoor heat exchange The second port of device is connected with the first port of the indoor heat exchanger, and the gas outlet is connected with the gas supplementing opening;
Automatically controlled heat exchanger, the automatically controlled heat exchanger is used to exchange heat to the electric-controlled parts of the air-conditioning system, the automatically controlled heat exchanger Connected with a refrigerant mouthful;With
Reversal valve, the reversal valve include first, second mouthful and the 3rd mouthful, the first connects the control mouth, described Second mouthful of connection first valve port, the 3rd mouthful of connection the 4th valve port, the first can be selectively communicated with Described second mouthful or described 3rd mouthful, so that the control mouth can selectively communicate with first valve port or described Four valve ports, when the control mouth is connected with the 4th valve port, the compressor operating is in the single cylinder pattern, the control mouth When being connected with first valve port, the compressor operating is in the twin-tub pattern;
Described control method includes:
Detect the frequency of the compressor;
When the frequency is less than default first frequency threshold value, the first is controlled to be connected with described 3rd mouthful so that described Compressor operating is in the single cylinder pattern;With
When the frequency is more than or equal to default second frequency threshold value, control the first to be connected with described second mouthful with Make the compressor operating in the twin-tub pattern.
CN201710526024.4A 2017-06-30 2017-06-30 The control method of air-conditioning system and air-conditioning system Pending CN107178926A (en)

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PCT/CN2017/117887 WO2019000868A1 (en) 2017-06-30 2017-12-22 Air conditioning system and control method for air conditioning system

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EP1740894B1 (en) * 2004-04-08 2009-06-03 York International Corporation Flash tank for economizer refrigeration systems
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Application publication date: 20170919