CN110207421A - Multi-line system - Google Patents
Multi-line system Download PDFInfo
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- CN110207421A CN110207421A CN201910555523.5A CN201910555523A CN110207421A CN 110207421 A CN110207421 A CN 110207421A CN 201910555523 A CN201910555523 A CN 201910555523A CN 110207421 A CN110207421 A CN 110207421A
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- Prior art keywords
- valve
- port
- line system
- control valve
- compressor
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Classifications
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- 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
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- 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
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- 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
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
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- 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
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/37—Capillary tubes
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- 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
- F25B2313/023—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units
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- 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
Abstract
The present invention discloses a kind of multi-line system, comprising: high-pressure liquid tube；Low-pressure air pipe；Compressor assembly, compressor assembly have exhaust outlet, the first gas returning port and the second gas returning port；First commutation component, the first commutation component includes first to fourth valve port, and the first valve port is connected with exhaust outlet, and third valve port is connected with low-pressure air pipe, and the 4th valve port is connected with the first gas returning port；Outdoor heat exchanger, the first end of outdoor heat exchanger are connected with the second valve port, and the second end of outdoor heat exchanger is connected by the first control valve with high-pressure liquid tube；Cold-storage device, cold-storage device includes regenerator, restricting element, the second control valve and third control valve, regenerator includes the storage chamber mutually to exchange heat and refrigerant flow, the first end of refrigerant flow is connected by restricting element with the second end of outdoor heat exchanger, and the second end of refrigerant flow is connected with the second gas returning port by the second control valve and is connected by third control valve with high-pressure liquid tube.The comfort level of user can be improved in multi-line system of the invention.
Description
Technical field
The present invention relates to air-conditioning technique fields, more particularly, to a kind of multi-line system.
Background technique
In the summer of high temperature, daytime, outdoor temperature was high, and the heat dissipation effect of the condenser of multi-line system is poor, and refrigeration system is high
Pressure is high, to guarantee reliability, it has to limit the output of multi-line system refrigerating capacity, this results in multi-line system to be unable to satisfy
The refrigeration demand on daytime；At dead of night, outdoor temperature is low, and condenser good heat dissipation effect, multi-line system refrigerating capacity is good, but at this time
Refrigeration demand is few compared with daytime, and refrigerating capacity has residue, this results in multi-line system refrigerating capacity and actual demand to mismatch.
Existing air-conditioning system, which has begun through cold-storage, solves the problems, such as refrigerating capacity and refrigeration demand mispairing.For
For regenerator, in order to reduce cost and volume, ice storage is optimal selection, but ice storage requires the evaporating temperature of refrigeration system
Lower than 0 degree, but evaporating temperature be lower than 0 when, indoor heat exchanger can freeze, and indoor unit can enter anti-freeze state.This is just meaned
, if indoor unit does not allow for opening when cold-storage using most economical ice storage.This just significantly limits Cool Storage Technology
Application.Simultaneously meet the cold-storage demand of regenerator and the refrigeration demand of indoor heat exchanger be those skilled in the art always
The technical issues of not solving.
Summary of the invention
The present invention is directed at least solve one of the technical problems existing in the prior art.For this purpose, one object of the present invention
It is to propose a kind of multi-line system, the multi-line system has an improved cold-storage device, and there are two kinds in multi-line system
Evaporating temperature can meet the cold-storage demand of regenerator and the refrigeration demand of indoor heat exchanger simultaneously, expand the application of cold-storage
Scene.
Multi-line system according to an embodiment of the present invention, comprising: high-pressure liquid tube；Low-pressure air pipe；Compressor assembly, the pressure
Contracting thermomechanical components have exhaust outlet, the first gas returning port and the second gas returning port；First commutation component, the first commutation component includes the
One valve port to the 4th valve port, first valve port are connected to one in second valve port and third valve port, the 4th valve
Mouth is connected to another in second valve port and the third valve port, and first valve port is connected with the exhaust outlet, institute
It states third valve port to be connected with the low-pressure air pipe, the 4th valve port is connected with first gas returning port；Outdoor heat exchanger, it is described
The first end of outdoor heat exchanger is connected with the second valve port, and the second end of the outdoor heat exchanger passes through the first control valve and the height
Hydraulic fluid pipe is connected；Cold-storage device, the cold-storage device include regenerator, restricting element, the second control valve and third control valve,
In, the regenerator includes the storage chamber mutually to exchange heat and refrigerant flow, and storing thermal storage medium is suitable in the storage chamber, described
The first end of refrigerant flow is connected by the restricting element with the second end of the outdoor heat exchanger, and the of the refrigerant flow
Two ends are connected with second gas returning port by second control valve and by the third control valves and the high-pressure liquid tube
It is connected.
Multi-line system according to an embodiment of the present invention, by the way that the compressor assembly of cold-storage device and double suction port is arranged,
Two different evaporating temperatures can be formed in a multi-line system, the lower refrigerant of evaporating temperature meets the cold-storage of regenerator
Demand, the relatively high refrigerant of evaporating temperature meet indoor unit refrigeration demand, thus by indoor unit in a multi-line system
Evaporating temperature needed for required evaporating temperature and regenerator is separated to meet the cold-storage of indoor mechanism cold and regenerator simultaneously
Demand, evaporating temperature is changed lower than zero degree, interior caused by avoiding the cold-storage demand because only meeting regenerator in the related technology
The problem of frequent anti-freeze of hot device, system energy efficiency decline, is conducive to improve system energy efficiency, improves system reliability of operation, mention
High indoor comfort, is releasing cold state, the cooling capacity of cool storage medium can be released to the refrigerant that will flow to indoor heat exchanger, mention
Degree of supercooling before high refrigeration indoor unit valve, reduces throttling noise, improves the fan-out capability of indoor unit, to be conducive to improve indoor
Comfort.
According to some embodiments of the present invention, first control valve is electric expansion valve or heating power expansion valve.
According to some embodiments of the present invention, the restricting element is electric expansion valve or heating power expansion valve.
According to some embodiments of the present invention, second control valve is solenoid valve.
According to some embodiments of the present invention, the third control valve is check valve, and the third control valve is from described
One-way conduction on refrigerant flow to the direction of the high-pressure liquid tube.
According to some embodiments of the present invention, the check valve is Unidirectional solenoid valve.
According to some embodiments of the present invention, the compressor assembly is a compressor.
According to some embodiments of the present invention, the compressor is twin-tub separate compressors.
According to some embodiments of the present invention, the compressor assembly includes a first compressor and a second compressor, described
First compressor has first row port and first gas returning port, and second compressor has second exhaust port and described the
Two gas returning ports, the first row port and the second exhaust port collectively form the exhaust outlet.
According to some embodiments of the present invention, the first commutation component is the first four-way valve.
According to some embodiments of the present invention, multi-line system further includes gas-liquid separator, and the gas-liquid separator includes
Gas-liquid entrance and gas vent, the gas-liquid entrance are connected with the 4th valve port, the gas vent and first return-air
Mouth is connected.
According to some embodiments of the present invention, multi-line system further includes oil eliminator, the oil eliminator include import,
Outlet and oil return opening, the import are connected with the exhaust outlet, and the outlet is connected with first valve port, the oil return
Mouth is connected with first gas returning port.
According to some embodiments of the present invention, multi-line system further includes additional tracheae and the second commutation component, and described the
Two commutation components include first interface to third interface, in the first interface and the second interface and the third interface
One of conducting, the first interface are connected with the additional tracheae and second control valve respectively, the second interface
It is connected with the exhaust outlet, the third interface is connected with second air entry.
According to some embodiments of the present invention, the second commutation component is the second four-way valve.
According to some embodiments of the present invention, the 4th interface of the second commutation component and the third interface pass through hair
Tubule is connected.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, in which:
Fig. 1 is the schematic diagram of multi-connected machine according to some embodiments of the invention.
Appended drawing reference:
Multi-line system 100；
Compressor assembly 1；Exhaust outlet 11；First gas returning port 12；Second gas returning port 13；
First commutation component 2；First valve port 21；Second valve port 22；Third valve port 23；4th valve port 24；
Outdoor heat exchanger 3；
First control valve 4；
Cold-storage device 5；Regenerator 51；Restricting element 52；Second control valve 53；Third control valve 54；
Gas-liquid separator 6；Gas-liquid entrance 61；Gas vent 62；
Oil eliminator 7；Import 71；Outlet 72；Oil return opening 73；
Second commutation component 8；First interface 81；Second interface 82；Third interface 83；
Capillary 9；
High-pressure liquid tube a；Low-pressure air pipe b；Additional tracheae c.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, and for explaining only the invention, and is not considered as limiting the invention.
Below with reference to the accompanying drawings multi-line system 100 according to an embodiment of the present invention is described, which can adjust
Save room temperature.Optionally, multi-line system 100 can be three control multi-line systems, or two pipes system multi-connected machine system
System.
As shown in Figure 1, multi-line system 100 according to an embodiment of the present invention, may include outdoor unit, multiple indoor units,
High-pressure liquid tube a and low-pressure air pipe b.Wherein, high-pressure liquid tube a and low-pressure air pipe b are connected between outdoor unit and indoor unit.
Outdoor unit may include the commutation of compressor assembly 1, first component 2, outdoor heat exchanger 3 and cold-storage device 5.Certainly,
The invention is not limited thereto, and in other optional embodiments, cold-storage device 5 can also be independent from outdoor unit, at this
In description in text, a part using cold-storage device 5 as outdoor unit is illustrated.
Specifically, there is compressor assembly 1 exhaust outlet 11, the first gas returning port 12 and the second gas returning port 13, refrigerant can lead to
It crosses the first gas returning port 12 and the second gas returning port 13 enters in compressor assembly 1, compressor assembly 1 can press refrigerant
The refrigerant of contracting, the high temperature and pressure for then being completed compression by exhaust outlet 11 is discharged.
First commutation component 2 may include the first valve port 21, the second valve port 22, third valve port 23 and the 4th valve port 24,
In, the first valve port 21 is connected to one of commutation in the second valve port 22 and third valve port 23, the 4th valve port 24 and the second valve
Mouth 22 is connected to another commutation in third valve port 23, that is to say, that when the first valve port 21 is connected to the second valve port 22, the
Three valve ports 23 are connected to the 4th valve port 24, when the first valve port 21 is connected to third valve port 23, the second valve port 22 and the 4th valve port
24 connections.
First valve port 21 is connected with exhaust outlet 11, and the 4th valve port 24 is connected with the first gas returning port 12, third valve port 23 with it is low
Air pipe b is connected, specifically, low-pressure air pipe b can be connected with each indoor unit, high-pressure liquid tube a is connected with each indoor unit, room
Indoor heat exchanger can be set in interior machine.About the connection type of high-pressure liquid tube a and low-pressure air pipe b and each indoor unit by this
Known to the technical staff of field, no longer it is described in detail herein.
The first end (for example, left end shown in Fig. 1) of outdoor heat exchanger 3 is connected with the second valve port 22, outdoor heat exchanger 3
Second end (for example, right end shown in Fig. 1) be connected with high-pressure liquid tube a by the first control valve 4, wherein the first control valve 4
The on or off between outdoor heat exchanger 3 and high-pressure liquid tube a may be implemented.
Cold-storage device 5 includes regenerator 51, restricting element 52, the second control valve 53 and third control valve 54.Wherein, cold-storage
Device 51 includes the storage chamber mutually to exchange heat and refrigerant flow, and storage cool storage medium such as water is suitable in storage chamber, refrigerant flow
First end is connected by restricting element 52 with the second end of outdoor heat exchanger 3, and the second end of refrigerant flow passes through the second control valve
53, which are connected with the second gas returning port 13 and are connected by third control valve 54 with high-pressure liquid tube a, is for example connect by third control valve 54
On flow path between the first control valve 4 and high-pressure liquid tube a, that is to say, that on the one hand the second end of refrigerant flow passes through second
Control valve 53 is connected with the second gas returning port 13 and is on the other hand connected by third control valve 54 with high-pressure liquid tube a.
It is understood that, in order to reduce cost and volume, ice storage is optimal selection for regenerator 51, but
Ice storage requires the evaporating temperature of the multi-line system 100 of refrigeration to be lower than 0 degree；And for the indoor heat exchanger of refrigeration, one
Aspect is in order to guarantee that indoor heat exchanger will not freeze, it is desirable that the evaporating temperature of the multi-line system 100 of refrigeration is higher than 0 degree, another
If aspect interior refrigeration demand is small, in order to improve the efficiency of multi-line system 100 and reduce start and stop, it is desirable that refrigeration multi-line system
100 evaporating temperature is high as far as possible.How the cold-storage demand of regenerator 51 and the refrigeration demand of indoor heat exchanger are on the contrary, multi-joint
Meeting the cold-storage demand of regenerator 51 and the refrigeration demand of indoor heat exchanger simultaneously in machine system 100 is those skilled in the art
The technical issues of never solving.
Specifically, multi-line system 100 is also when carrying out refrigeration there are indoor heat exchanger and without indoor heat exchanger heating
Including cold-storage state and release cold state.
Wherein, in cold-storage state, the first valve port 21 is connected with the second valve port 22, third valve port 23 and 24 phase of the 4th valve port
Even, the first control valve is 4 in the open state (for example, when the first control valve 4 only has on-off function, beat by the first control valve 4
It opens；When the first control valve 4 flow degree can timing, first control valve 4 can be the throttle that is also possible to of standard-sized sheet, preferably
Ground, 4 standard-sized sheet of the first control valve or aperture of the aperture greater than restricting element 52 at this time for guaranteeing the first control valve 4), second
Control valve 53 is opened, and third control valve 54 is ended on the direction from high-pressure liquid tube a to refrigerant flow (for example, third control valve
54 be check valve, and third control valve 54 is from refrigerant flow to one-way conduction on the direction of high-pressure liquid tube a；For another example, third controls
Valve 54 only has opening and closing function, and third control valve 54 is closed at this time), restricting element 52 is in throttle, from 11 row of exhaust outlet
Refrigerant out flows to outdoor heat exchanger 3 by the first valve port 21 and the second valve port 22, refrigerant in outdoor heat exchanger 3 with outdoor ring
Border exchanges heat, and the refrigerant after heat exchange is divided into two-way flow path after the discharge of outdoor heat exchanger 3: wherein flow path is first by throttling all the way
Refrigerant flow is flowed to after the throttling action of part 52 and is exchanged heat with the cool storage medium in storage chamber so that refrigerant in refrigerant flow
Cooling capacity be released to cool storage medium, then refrigerant from refrigerant flow discharge after by the second control valve 53 return to compressor assembly
1 the second gas returning port 13；Another way refrigerant flows to high-pressure liquid tube a after the first control valve 4 and further flows towards the room of refrigeration
It exchanges heat in interior heat exchanger and indoors heat exchanger with indoor environment, the refrigerant after heat exchange passes through low-pressure air pipe b, third valve port
23 and second valve port 22 and the first gas returning port 12 return to compressor assembly 1.
Cold state is being released, the first valve port 21 is connected with the second valve port 22, and third valve port 23 is connected with the 4th valve port 24, and first
Control valve 4 is in close state, and the second control valve 53 is closed, and third control valve 54 is from refrigerant flow to the side of high-pressure liquid tube a
Upwards conducting (for example, third control valve 54 is check valve, such as Unidirectional solenoid valve, third control valve 54 from refrigerant flow to
One-way conduction on the direction of high-pressure liquid tube a；For another example, third control valve 54 only has opening and closing function, and third control valve 54 is beaten at this time
Open), restricting element 52 is in throttle or full-gear (preferably, restricting element 52 is shown in a fully open operation), from exhaust outlet
The refrigerants of 11 discharges flow to outdoor heat exchanger 3 by the first valve port 21 and the second valve port 22, and refrigerant is in outdoor heat exchanger 3 and room
External environment exchanges heat, the refrigerant after heat exchange from outdoor heat exchanger 3 discharge after by restricting element 52 flow to refrigerant flow and
It exchanges heat with the cool storage medium in storage chamber in order to which cooling capacity is released to refrigerant by cool storage medium in refrigerant flow, then refrigerant is from cold
High-pressure liquid tube a is flowed to by third control valve 54 after the discharge of matchmaker's flow path and further flows towards the indoor heat exchanger and indoors of refrigeration
Is exchanged heat in heat exchanger with indoor environment, the refrigerant after heat exchange pass through low-pressure air pipe b, third valve port 23 and the second valve port 22 with
And first gas returning port 12 return to compressor assembly 1.
In summary, above-mentioned setting may be implemented in multi-line system 100 that there are two kinds of evaporating temperatures, so that more
The refrigerating capacity of on-line system 100 matches with actual demand, specifically, in cold-storage state (such as multi-line system 100
Night operation when), restricting element 52 throttle after the lower refrigerant of temperature flow to refrigerant flow and in refrigerant flow with storage
Cold medium carries out heat exchange in order to which cool storage medium stores cooling capacity to meet the cold-storage demand of regenerator 51, while to indoor unit
The relatively high refrigerant of temperature is provided and meets indoor unit refrigeration demand, thus by indoor unit institute in a multi-line system 100
Evaporating temperature needed for the evaporating temperature and regenerator 51 that need is separated to meet the storage of indoor mechanism cold and regenerator 51 simultaneously
Cold demand, avoids that evaporating temperature caused by the cold-storage demand because only meeting regenerator 51 in the related technology is low, system energy efficiency
The problem of decline, is conducive to improve system energy efficiency, improves system reliability of operation, be conducive to improve indoor comfort,
Cold state (such as multi-line system 100 is when running daytime) is released, the cooling capacity of cool storage medium, which can be released to, will flow to interior
The refrigerant of heat exchanger, to be conducive to improve indoor comfort.
Multi-line system 100 according to an embodiment of the present invention, by the compressor set that cold-storage device 5 and double suction port is arranged
Part 1, can form two different evaporating temperatures in a multi-line system 100, and the lower refrigerant of evaporating temperature meets cold-storage
The cold-storage demand of device 51, the relatively high refrigerant of evaporating temperature meet indoor unit refrigeration demand, thus in a multi-line system
In 100 by evaporating temperature needed for evaporating temperature needed for indoor unit and regenerator 51 separate with simultaneously meet indoor mechanism cold with
And the cold-storage demand of regenerator 51, temperature is evaporated caused by avoiding the cold-storage demand because only meeting regenerator 51 in the related technology
The problem of degree is lower than zero degree, the frequent anti-freeze of indoor heat exchanger, system energy efficiency decline, is conducive to improve system energy efficiency, improves system
System reliability of operation, improves indoor comfort, is releasing cold state, the cooling capacity of cool storage medium, which can be released to, will flow to room
The refrigerant of interior heat exchanger, the degree of supercooling before improving refrigeration indoor unit valve, reduces throttling noise, improves the fan-out capability of indoor unit,
To be conducive to improve indoor comfort.
In brief, multi-line system 100 according to an embodiment of the present invention, may be implemented the refrigeration of multi-line system 100
Ability matches with actual demand, is conducive to improve indoor comfort, avoids in the related technology because only meeting regenerator 51
Cold-storage demand caused by the problem of evaporating temperature is low, system energy efficiency decline, be conducive to improve system energy efficiency, improve system fortune
Capable reliability.
In some optional embodiments of the invention, regenerator 51 includes snakelike pipeline and the tank body with storage chamber,
Snakelike pipeline is wrapped on the periphery wall of tank body, and snakelike pipeline limits refrigerant flow, be conducive to improve as a result, snakelike pipeline with
The heat transfer effect of storage chamber.
Further, regenerator 51 further includes shell, and tank body, which sets inside the shell and is spaced apart with tank body, to be arranged to limit
Placement space, snakelike pipeline is located in placement space and winding tank body, can have thermal insulation material in shell, is thus conducive to subtract
The loss of few cooling capacity, improves heat insulation effect.
Optionally, thermal insulation material can be sponge, foam etc..Certainly, the invention is not limited thereto, the internal perisporium and tank of shell
Processing can be foamed between the periphery wall of body to form the foaming layer of heat preservation, wherein snakelike pipeline is only exposed by foaming layer cladding
First end and second end for connection.
In some optional embodiments of the invention, the first control valve 4 is electric expansion valve or heating power expansion valve.Also
It is to say, the first control valve 4 not only has the function of on-off, can be with reducing pressure by regulating flow.Therefore, it may not need in addition setting to be connected to
Throttle part between indoor heat exchanger and outdoor heat exchanger 3, advantageously reduces cost.
In some optional embodiments of the invention, restricting element 52 be electric expansion valve or heating power expansion valve, thus
It is quick on the draw, and at low cost.
Due to solenoid valve have it is at low cost, be quick on the draw, the advantages of high reliablity, some optional realities according to the present invention
Example is applied, the second control valve 53 is solenoid valve.
In some optional embodiments of the invention, compressor assembly 1 is a compressor, which includes first
Gas returning port 12, the second gas returning port 13 and exhaust outlet 11.For example, the compressor is twin-tub separate compressors or twin-tub two stages of compression
Machine.
Optionally, which is twin-tub separate compressors, specifically, in cold-storage state, due to flowing out from indoor unit
Refrigerant and be different from the temperature of refrigerant that refrigerant flow flows out, by making the refrigerant flowed out from indoor unit and from refrigerant
The refrigerant of flow path outflow flows to different cylinders respectively, is conducive to the reliability for improving compressor operating.
Certainly, the invention is not limited thereto, and in other optional embodiments, compressor assembly 1 includes the first compressor
With the second compressor, wherein the first compressor has first row port 11 and the first gas returning port 12, and the second compressor has second
Exhaust outlet 11 and the second gas returning port 13, first row port 11 and second exhaust port 11 collectively form exhaust outlet 11, in cold-storage state,
Since the temperature of the refrigerant and the refrigerant flowed out from refrigerant flow that flow out from indoor unit is different, by making from indoor unit stream
Refrigerant out and different compressors is flowed to respectively from the refrigerant that refrigerant flow flows out, be conducive to improve each compressor operating
Reliability.
Optionally, a first compressor and a second compressor can be single cylinder compressor, certainly, the first compressor and the second pressure
Contracting machine can also be one of them in duplex cylinder compressor or a first compressor and a second compressor for single cylinder compressor, the
Another in one compressor and the second compressor is duplex cylinder compressor.For example, duplex cylinder compressor is twin-tub two-stage compressor.
It should be noted that the structure and working principle about twin-tub separate compressors and twin-tub two-stage compressor are by this
Known to the technical staff of field, no longer it is described in detail herein.
As shown in Figure 1, according to some embodiments of the present invention, the first commutation component 2 is the first four-way valve, as a result, not only
Structure is simple, at low cost, and the first four-way valve is quick on the draw, the high reliablity of work.
As shown in Figure 1, according to some embodiments of the present invention, multi-line system 100 further includes oil eliminator 7.Oil separation
Device 7 may include import 71, outlet 72 and oil return opening 73, and wherein import 71 is connected with exhaust outlet 11, outlet 72 and first
Valve port 21 is connected, and oil return opening 73 is connected with the first gas returning port 12, it is possible thereby to guarantee the normal operation of multi-line system 100.Tool
For body, when compressor assembly 1 works, the cold media gas of high temperature and pressure is discharged from exhaust outlet 11, due to mixing in cold media gas
There is lubricating oil, lubricating oil influences the normal work of refrigerant.The separation of cold media gas and lubricating oil may be implemented in oil eliminator 7, point
It being discharged from cold media gas after the completion by outlet 72, lubricating oil can be flowed back into compressor assembly 1 by oil return opening 73,
So as to realize recycling for lubricating oil.
As shown in Figure 1, according to some embodiments of the present invention, multi-line system 100 further includes gas-liquid separator 6, gas-liquid
Separator 6 may include gas-liquid entrance 61 and gas vent 62, and gas-liquid entrance 61 is connected with the 4th valve port 24, gas vent 62 with
First gas returning port 12 is connected, it is possible thereby to guarantee the normal operation of compressor assembly 1.Specifically, the refrigerant after the completion of heat exchange
It needs to flow back into and carries out second compression again in compressor assembly 1, it is possible thereby to guarantee recycling for refrigerant.Usually heat exchange is completed
Refrigerant afterwards is the state of gas-liquid two-phase, due to the refrigerant compression ratio very little of liquid, after liquid coolant enters compressor assembly 1
It is easy to cause the damage of the power part of compressor assembly 1.Point of gaseous state and liquid refrigerant may be implemented in gas-liquid separator 6
From.After the refrigerant of gas-liquid two-phase enters gas-liquid separator 6, gas-liquid separator 6 can be separated gaseous refrigerant simultaneously
It is drained into compressor assembly 1 from gas vent 62, the refrigerant of liquid is then stored in gas-liquid separator 6.
As shown in Figure 1, according to some embodiments of the present invention, multi-line system 100 further includes that additional tracheae c and second is changed
To component 8.
Second commutation component 8 includes first interface 81 to third interface 83, first interface 81 and second interface 82 and third
One of commutation conducting in interface 83, first interface 81 are connected with additional tracheae c and the second control valve 53 respectively, and second connects
Mouth 82 is connected with exhaust outlet 11, for example, second interface 82 is connected with the outlet 72 of above-mentioned oil eliminator 7, third interface 83
It is connected with the second air entry.Specifically, in cold-storage state, first interface 81 is connected to third interface 83, from the second control valve
The refrigerant of 53 outflows returns to compressor assembly 1 followed by first interface 81, third interface 83 and the second gas returning port 13, is releasing
Cold state, first interface 81 are connected with third interface 83, and the second control valve 53 flows to the second commutation component 8 without refrigerant at this time.
It is understood that its of multi-line system 100 may be implemented in the setting of the additional commutation of tracheae c and second component 8
Middle a part of indoor heat exchanger heating, another part indoor heat exchanger refrigeration, in a part of indoor heat exchanger heating of realization and separately
A part of indoor heat exchanger freeze when, the second control valve 53 close, about additional tracheae c, high-pressure liquid tube a and low-pressure air pipe b with
Connection type and refrigerant circulation style between indoor unit are by as it is known to those skilled in the art that be no longer described in detail herein.
In some optional embodiments of the invention, the second commutation component 8 is the second four-way valve, the second commutation component 8
The 4th interface 84 and third interface 83 be connected by capillary 9.It is possible thereby to which the second commutation component 8 is made to meet work requirements.
Specifically, capillary 9 has the function of throttling, the 4th interface 84 of the second commutation component 8 passes through capillary with third interface 83
Pipe 9, which is connected, can make the function of the second four-way valve realization triple valve, it is possible thereby to meet the work requirements of multi-line system 100.
Of course, it should be understood that the second commutation component 8 can also use triple valve.
In the description of the present invention, it is to be understood that, the orientation or position of the instructions such as term "left", "right", circumferential direction are closed
System is merely for convenience of description of the present invention and simplification of the description to be based on the orientation or positional relationship shown in the drawings, rather than indicates
Or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot understand
For limitation of the present invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.In the description of the present invention, the meaning of " plurality " is at least two, such as two
It is a, three etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, the terms such as term " connected ", " connection " should do broad sense reason
Solution, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connection, be also possible to electricity
Connection can communicate with each other；It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The interaction relationship of the connection in portion or two elements.It for the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
In the present invention unless specifically defined or limited otherwise, fisrt feature second feature "upper" or "lower"
It may include that the first and second features directly contact, also may include that the first and second features are not direct contacts but pass through it
Between other characterisation contact.Moreover, fisrt feature includes the first spy above the second feature " above ", " above " and " above "
Sign is right above second feature and oblique upper, or is merely representative of first feature horizontal height higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " following " include that fisrt feature is directly below and diagonally below the second feature, or is merely representative of
First feature horizontal height is less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ",
The description of " example ", " specific example " or " some examples " etc. means specific features described in conjunction with this embodiment or example, knot
Structure, material or feature are included at least one embodiment or example of the invention.In the present specification, to above-mentioned term
Schematic representation may not refer to the same embodiment or example.Moreover, specific features, structure, material or the spy of description
Point can be combined in any suitable manner in any one or more of the embodiments or examples.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that: not
A variety of change, modification, replacement and modification can be carried out to these embodiments in the case where being detached from the principle of the present invention and objective, this
The range of invention is defined by the claims and their equivalents.
Claims (15)
1. a kind of multi-line system characterized by comprising
High-pressure liquid tube；
Low-pressure air pipe；
Compressor assembly, the compressor assembly have exhaust outlet, the first gas returning port and the second gas returning port；
First commutation component, the first commutation component include the first valve port to the 4th valve port, first valve port and described the
Two valve ports are connected to one in third valve port, the 4th valve port with it is another in second valve port and the third valve port
A connection, first valve port are connected with the exhaust outlet, and the third valve port is connected with the low-pressure air pipe, the 4th valve
Mouth is connected with first gas returning port；
Outdoor heat exchanger, the first end of the outdoor heat exchanger are connected with the second valve port, and the second end of the outdoor heat exchanger is logical
The first control valve is crossed to be connected with the high-pressure liquid tube；
Cold-storage device, the cold-storage device include regenerator, restricting element, the second control valve and third control valve, wherein described
Regenerator includes the storage chamber mutually to exchange heat and refrigerant flow, is suitable for storing thermal storage medium, the refrigerant stream in the storage chamber
The first end on road is connected by the restricting element with the second end of the outdoor heat exchanger, and the second end of the refrigerant flow is logical
Second control valve is crossed to be connected with second gas returning port and be connected by the third control valve with the high-pressure liquid tube.
2. multi-line system according to claim 1, which is characterized in that first control valve is electric expansion valve or heat
Power expansion valve.
3. multi-line system according to claim 1, which is characterized in that the restricting element is electric expansion valve or heating power
Expansion valve.
4. multi-line system according to claim 1, which is characterized in that second control valve is solenoid valve.
5. multi-line system according to claim 1, which is characterized in that the third control valve is check valve, described the
Three control valves are from the refrigerant flow to one-way conduction on the direction of the high-pressure liquid tube.
6. multi-line system according to claim 5, which is characterized in that the check valve is Unidirectional solenoid valve.
7. multi-line system according to claim 1, which is characterized in that the compressor assembly is a compressor.
8. multi-line system according to claim 7, which is characterized in that the compressor is twin-tub separate compressors.
9. multi-line system according to claim 1, which is characterized in that the compressor assembly include the first compressor and
Second compressor, first compressor have first row port and first gas returning port, and second compressor has the
Two exhaust outlets and second gas returning port, the first row port and the second exhaust port collectively form the exhaust outlet.
10. multi-line system according to claim 1, which is characterized in that the first commutation component is the first four-way valve.
11. multi-line system according to claim 1, which is characterized in that it further include gas-liquid separator, the gas-liquid separation
Device includes gas-liquid entrance and gas vent, and the gas-liquid entrance is connected with the 4th valve port, the gas vent and described the
One gas returning port is connected.
12. multi-line system according to claim 1, which is characterized in that it further include oil eliminator, the oil eliminator packet
Import, outlet and oil return opening are included, the import is connected with the exhaust outlet, and the outlet is connected with first valve port,
The oil return opening is connected with first gas returning port.
13. multi-line system according to claim 1, which is characterized in that it further include adding tracheae and the second commutation component,
The second commutation component includes first interface to third interface, and the first interface connects with the second interface and the third
One of conducting in mouthful, the first interface is connected with the additional tracheae and second control valve respectively, and described the
Two interfaces are connected with the exhaust outlet, and the third interface is connected with second air entry.
14. multi-line system according to claim 13, which is characterized in that the second commutation component is the second four-way
Valve.
15. multi-line system according to claim 14, which is characterized in that it is described second commutation component the 4th interface with
The third interface is connected by capillary.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910555523.5A CN110207421A (en) | 2019-06-25 | 2019-06-25 | Multi-line system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910555523.5A CN110207421A (en) | 2019-06-25 | 2019-06-25 | Multi-line system |
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| Publication Number | Publication Date |
|---|---|
| CN110207421A true CN110207421A (en) | 2019-09-06 |
Family
ID=67794650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201910555523.5A Pending CN110207421A (en) | 2019-06-25 | 2019-06-25 | Multi-line system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111486568A (en) * | 2020-04-29 | 2020-08-04 | 广东美的暖通设备有限公司 | Air conditioning system and control method thereof |
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| CN109210821A (en) * | 2018-10-23 | 2019-01-15 | 四川长虹空调有限公司 | Capillary network based on the double liquid storage devices of the twin-tub temperature control system in parallel with indoor unit |
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| JPH02140573A (en) * | 1988-11-18 | 1990-05-30 | Sanyo Electric Co Ltd | Air conditioning apparatus |
| CN201935317U (en) * | 2011-01-20 | 2011-08-17 | 中原工学院 | Cold accumulation solar energy injecting-compressing combined refrigerating unit |
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| CN111486568A (en) * | 2020-04-29 | 2020-08-04 | 广东美的暖通设备有限公司 | Air conditioning system and control method thereof |
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