CN104976813B - Air conditioner - Google Patents
Air conditioner Download PDFInfo
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- CN104976813B CN104976813B CN201410136802.5A CN201410136802A CN104976813B CN 104976813 B CN104976813 B CN 104976813B CN 201410136802 A CN201410136802 A CN 201410136802A CN 104976813 B CN104976813 B CN 104976813B
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- valve
- air conditioner
- control valve
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- injector
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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
- F25B29/00—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously
- F25B29/003—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously of the compression type system
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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
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
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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
- F25B2313/027—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means
- F25B2313/02741—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means using one four-way valve
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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
- F25B2600/00—Control issues
- F25B2600/25—Control of valves
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
The invention discloses a kind of air conditioner, including：Compressor, four-way valve, outdoor heat exchanger, first throttle element, indoor set component and injector, wherein, compressor has exhaust outlet, gas returning port and jet.Injector is provided with the first import, the second inlet and outlet, first import is connected by the first control valve with exhaust outlet, second import is connected by the second control valve with the second end of first throttle element, outlet is connected with jet, wherein when air conditioner is in low-temperature heating and run, first control valve and the second control valve are opened, and are entered from the first import and the second import and are discharged and returned to by jet in compressor from outlet after the refrigerant mixing in injector.Air conditioner according to embodiments of the present invention, injector can not only be heated using high-temperature exhaust air to second vapor injection, to lift the degree of superheat of second vapor injection, while injector can also reclaim the loss of a part of high pressure fluid reduction, the ability efficiency of air conditioner can be improved.
Description
Technical field
The present invention relates to refrigerating field, more particularly, to a kind of air conditioner.
Background technology
Air-conditioning system in correlation technique often has that ambient temperature is lower, the poorer situation of heating effect, this
Lower with ambient temperature in reality, the demand that heating effect requires better is not inconsistent.In order to improve air-conditioning system low temperature
Heating effect, compressor air injection enthalpy-increasing technology is applied in air-conditioning system, and the fluid of the puff prot of compressor often from
The refrigerant of system mesolow, on the one hand easily causes wet pressing because degree of superheat deficiency causes suction gas band liquid in the middle of compressor
Contracting.On the other hand the generating source of pressure of inspiration(Pi) comes from system throttles in the middle of, and the control to intermediate pressure is more complicated, and directly saves
Stream brings certain energy loss.
The content of the invention
It is contemplated that at least solving one of technical problem in correlation technique to a certain extent.Therefore, the present invention
One purpose is to propose a kind of air conditioner, can not only lift the degree of superheat of second vapor injection, and reclaim a part of high-pressure spray
The loss of body pressure reduction.
Air conditioner according to embodiments of the present invention, including：Compressor, the compressor has exhaust outlet, gas returning port and spray
Loophole；Four-way valve, the four-way valve includes first to fourth valve port, and first valve port is connected with the exhaust outlet, and described the
Four valve ports are connected with the gas returning port；Outdoor heat exchanger, the first end of the outdoor heat exchanger is connected with second valve port；The
One restricting element, the first end of the first throttle element is connected with the second end of the outdoor heat exchanger；Indoor set component, institute
Indoor set component is stated including an indoor heat exchanger and the second restricting element, the first end of second restricting element and described the
Second end of one restricting element is connected, the indoor heat exchanger respectively with the second end of second restricting element and the described 3rd
Valve port is connected；Injector, the injector is provided with the first import, the second inlet and outlet, and first import passes through the first control
Valve processed is connected with the exhaust outlet, and second import passes through the second control valve and the second end phase of the first throttle element
Even, the outlet is connected with the jet, wherein when air conditioner is in low-temperature heating operation, first control valve and the
Two control valves are opened, and are entered from first import and second import after the refrigerant mixing in the injector from described
Discharge and returned to by the jet in the compressor in outlet.
Air conditioner according to embodiments of the present invention, when low-temperature heating is run, when air conditioner needs to carry out second vapor injection,
Controllable first control valve and the second control valve are opened, the refrigerant for the HTHP discharged from the exhaust outlet of compressor and from second
Low temperature liquid refrigerant is entered in injector in restricting element discharge low pressure, and injector not only can be using high-temperature exhaust air to centre
Tonifying Qi is heated, to lift the degree of superheat of second vapor injection, while injector can also reclaim a part of high pressure fluid drop
Low loss, so that by the way that provided with the first control valve, the second control valve and injector, the ability efficiency of air conditioner can be improved.
In addition, air conditioner according to the above embodiment of the present invention can also have technical characteristic additional as follows：
In some embodiments of the invention, air conditioner also includes the 3rd control valve, and the outlet passes through the described 3rd control
Valve processed is connected with the gas returning port.
Alternatively, the 3rd control valve is magnetic valve.
In some specific embodiments of the present invention, the indoor set component is at least two.
Specifically, second restricting element in each indoor set component is used to adjust cold medium flux and to refrigerant
Carry out reducing pressure by regulating flow.
Alternatively, second restricting element is electric expansion valve or heating power expansion valve.
In further embodiment of the present invention, air conditioner also include gas-liquid separator, the gas-liquid separator include into
Mouth and gas outlet, the entrance are connected with the outlet and the 4th valve port, and the gas outlet is connected with the gas returning port.From
And air conditioner can be avoided liquid hit phenomenon occur.
In further embodiment of the present invention, air conditioner also include gas-liquid separator, the gas-liquid separator include into
Mouth and gas outlet, the entrance and the 4th valve port are connected and pass through the 3rd control valve and the injector and the pressure
The jet of contracting machine is connected, and the gas outlet is connected with the gas returning port of the compressor.
Alternatively, the first throttle element is electric expansion valve, restricting orifice, capillary or heating power expansion valve.
Alternatively, first control valve and second control valve are respectively magnetic valve.
Brief description of the drawings
Fig. 1 is the schematic diagram of the air conditioner according to the embodiment of the present invention.
Reference：
Air conditioner 100,
Compressor 1, exhaust outlet a, gas returning port b, jet f,
Four-way valve 2, the first valve port D, the second valve port C, the 3rd valve port E, the 4th valve port S,
Outdoor heat exchanger 3,
First throttle element 4,
Indoor set component 5, indoor heat exchanger 50, the second restricting element 51,
Injector 6, the first import g, the second import h, outlet i,
First control valve 7, the second control valve 8, the 3rd control valve 9,
Gas-liquid separator 10, entrance m, gas outlet n
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and be not considered as limiting the invention.
In the description of the invention, it is to be understood that term " on ", " under ", "front", "rear", "left", "right", " perpendicular
Directly ", the orientation or position relationship of the instruction such as " level ", " top ", " bottom " " interior ", " outer " are based on orientation shown in the drawings or position
Relation, is for only for ease of the description present invention and simplifies description, rather than indicate or imply that the device or element of meaning must have
There is specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
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 one or more this feature.In the description of the invention, " multiple " are meant that two or more,
Unless otherwise specifically defined.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be that machinery connects
Connect or electrically connect；Can be joined directly together, can also be indirectly connected to by intermediary, can be in two elements
The connection in portion or the interaction relationship of two elements.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.
Air conditioner 100 according to embodiments of the present invention is described below with reference to Fig. 1, the air conditioner 100 is air conditioner, i.e. air-conditioning
Device 100 can be with heating operation also refrigerating operaton.
As shown in figure 1, air conditioner 100 according to embodiments of the present invention includes：Compressor 1, four-way valve 2, outdoor heat exchanger
3rd, first throttle element 4, indoor set component 5 and injector 6, wherein, compressor 1 has exhaust outlet a, gas returning port b and jet
F, specifically, compressor 1 are injecting type compressor, the element also including cylinder etc. of compressor 1, jet f and the compression in cylinder
The intermediate pressure section of chamber is directly turned on, and refrigerant is flowed into compression chamber by jet f direct currents, therefore the gas pressure at jet f
More than the gas pressure at gas returning port b., wherein it is desired to illustrate, structure and working principle of injecting type compressor 1 etc.
It is prior art, is just not described in detail here.
Four-way valve 2 includes the first valve port D, the second valve port C, the 3rd valve port E and the 4th valve port S, the first valve port D and exhaust outlet
A is connected, and the 4th valve port S is connected with gas returning port b, and the second valve port C is connected with the first end of outdoor heat exchanger 3, the 3rd valve port E and room
Interior heat exchanger 50 is connected, now when 100 refrigerating operaton of air conditioner, the first valve port D and the second valve port C conductings and the 3rd valve port E
Turned on the 4th valve port S, when 100 heating operation of air conditioner, the first valve port D and the 3rd valve port E are turned on and the second valve port C and the
Four valve port S are turned on.Specifically, four-way valve 2 is solenoid operated four-way valve.
The first end of first throttle element 4 is connected with the second end of outdoor heat exchanger 3, and first throttle element 4 is primarily served
The effect of reducing pressure by regulating flow is carried out to the refrigerant discharged from outdoor heat exchanger 3.Specifically, first throttle element 4 be electric expansion valve,
Restricting orifice, capillary or heating power expansion valve etc..
Indoor set component 5 includes a restricting element 51 of indoor heat exchanger 50 and second, the first of the second restricting element 51
End is connected with the second end of first throttle element 4, the second end and the 3rd of indoor heat exchanger 50 respectively with the second restricting element 51
Valve port E is connected.Specifically, indoor set component 5 is at least one, when indoor set component 5 is one, now air conditioner 100
For Dan Lianji systems（I.e. one one indoor heat exchanger 50 of correspondence of outdoor heat exchanger 3）, now the second restricting element 51 can be only
With the effect that reducing pressure by regulating flow is carried out to refrigerant.When indoor set component 5 is at least two, now air conditioner 100 is multi-connected machine
System（The i.e. one multiple indoor heat exchangers 50 of the correspondence of outdoor heat exchanger 3）, the refrigerant now entered in each indoor set component 5
Flow can be adjusted, the present invention specific example in, the second restricting element 51 in each indoor set component 5 is used for
Adjust cold medium flux and reducing pressure by regulating flow is carried out to refrigerant, now alternatively, the second restricting element 51 is electric expansion valve or heating power
Expansion valve.
Of course, it should be understood that when air conditioner 100 is multiple on-line system, the second section in each indoor set component 5
Fluid element 51 can only have the effect that reducing pressure by regulating flow is carried out to refrigerant, and should be now provided with each indoor set component 5 is used to adjust
Save the control valve of cold medium flux.
Injector 6 passes through the first control valve 7 and exhaust provided with the first import g, the second import h and outlet i, the first import g
Mouth a is connected, and the second import h is connected by the second control valve 8 with the second end of first throttle element 4, outlet i and jet f phases
Even, wherein when air conditioner 100 is in low-temperature heating and run, the first control valve 7 and the second control valve 8 are opened, from the first import g
Entered with the second import h and discharge and returned to by jet f in compressor 1 from outlet i after the refrigerant mixing in injector 6.
, wherein it is desired to illustrate, injector 6 can use injector of the prior art, now operation principle of injector 6 etc.
It is prior art, is just not described in detail here.
Specifically, when air conditioner 100, which is in low-temperature heating, to be run（Carried out in the case where outdoor environment temperature is low
Heating operation）, when needing to carry out second vapor injection to compressor 1 by jet f, now the first control valve 7 and the second control
Valve 8 is in open mode, and the first valve port D of four-way valve 2 is turned on the 3rd valve port E and the second valve port C and the 4th valve port S are led
Logical, the circulation path of the refrigerant in air conditioner 100 is as follows：Pass through from the refrigerant of the exhaust outlet a of compressor 1 HTHPs discharged
Four-way valve 2 is entered in indoor heat exchanger 50, and the refrigerant of HTHP is discharged after being exchanged heat indoors in heat exchanger 50 and gone forward side by side
Enter and carry out reducing pressure by regulating flow into the second restricting element 51, the refrigerant after the reducing pressure by regulating flow of the second restricting element 51 is low in low pressure
Warm fluid liquid.
The refrigerant discharged from the second restricting element 51 is divided into two parts, a part of refrigerant（Equivalent to second vapor injection）Pass through
Two control valves 8 and the second import h are entered in injector 6, and are also led to from the refrigerant of the exhaust outlet a a part of HTHPs discharged
Cross the first control valve 7 and the first import g is entered in injector 6, the refrigerant of the HTHP now entered in injector 6 makes
Obtain low temperature liquid refrigerant flash evapn in low pressure and be formed as gaseous coolant, gaseous coolant is returned from outlet i discharges and by jet f
Into compressor 1.Now the one side of injector 6 plays a part of flash vessel, is heated using high-temperature exhaust air to second vapor injection,
To lift the degree of superheat of second vapor injection, on the other hand using the operation principle of injector 6, a part of high pressure fluid has been reclaimed
The loss of reduction.So as to improve the ability efficiency of air conditioner 100.
Another part refrigerant discharged from the second restricting element 51 is drained into after the reducing pressure by regulating flow by first throttle element 4
In outdoor heat exchanger 3, refrigerant is expelled back into compressor 1 after being evaporated in outdoor heat exchanger 3 by four-way valve 2 and gas returning port b
It is interior.
It should be noted that can be by the collective effect of the restricting element 51 of first throttle element 4 and second, regulation enters
To the refrigerant state of the second control valve 8 of injector 6（Pressure, temperature）.When such as freezing, based on the throttling of first throttle element 4,
Supplemented by second restricting element 51, but when if desired lifting the second import h pressure of injector 6, it can suitably open big first segment
Fluid element 4, turns down the second restricting element 51.
, wherein it is desired to illustrate, the flow of the first control valve 7 and the second control valve 8 available for regulation refrigerant, with
Adapt to the middle inspiratory capacity under the conditions of variable working condition of air conditioner 100（That is jet f return-air amount）With the requirement of pressure of inspiration(Pi).When
When inspiratory flow is larger in the middle of being required in air conditioner 100, the big control valve 8 of first control valve 7 and second can be suitably opened.Work as air-conditioning
When pressure of inspiration(Pi) is larger in the middle of being required in device 100, big first control valve 7 can be suitably opened, the second control valve 8 is turned down.
Certainly it is worth understanding, when air conditioner 100 is in low-temperature heating and run, when air conditioner 100 need not be carried out
During second vapor injection, the first control valve 7 and the second control valve 8 can be closed, to shield the first control valve 7, the second control valve 8 and spray
The intermediate loop system that emitter 6 is configured to.
Air conditioner 100 is in refrigerating operaton, and now the first control valve 7 and the second control valve 8 are closed, four-way valve
2 the first valve port D and the second valve port C conducting and the 3rd valve port E and the 4th valve port S conductings, the refrigerant now discharged from compressor 1
Entered by four-way valve 2 in outdoor heat exchanger 3, the refrigerant discharged from outdoor heat exchanger 3 passes sequentially through the He of first throttle element 4
Entered after the reducing pressure by regulating flow of second restricting element 51 in indoor heat exchanger 50, the refrigerant discharged from indoor heat exchanger 50 passes through four
Port valve 2 and gas returning port b are expelled back into compressor 1.
In some specific examples of the present invention, the first control valve 7 and the second control valve 8 can be magnetic valve, and air conditioner
100 also including electric-controlled box etc. element, electric-controlled box can be connected to control the first control valve 7 with the first control valve 7 and the second control valve 8
With the working condition of the second control valve 8.Certainly it is worth understanding, air conditioner 100 may also include indoor fan, outdoor fan etc.
Element.
Air conditioner 100 according to embodiments of the present invention, when low-temperature heating is run, when air conditioner 100 is needed in the middle of progress
During tonifying Qi, controllable first control valve 7 and the second control valve 8 are opened, from the exhaust outlet a of compressor 1 HTHPs discharged
Refrigerant and from the second restricting element 51 discharge low pressure in low temperature liquid refrigerant enter in injector 6, injector 6 not only can profit
Second vapor injection is heated with high-temperature exhaust air, to lift the degree of superheat of second vapor injection, while injector 6 can also reclaim one
Divide the loss of high pressure fluid reduction, so that by provided with the first control valve 7, the second control valve 8 and injector 6, Ke Yiti
The ability efficiency of high air conditioner 100.
As shown in figure 1, in some embodiments of the invention, air conditioner 100 also includes the 3rd control valve 9, outlet i passes through
3rd control valve 9 is connected with gas returning port b, i.e., now the outlet i of injector 6 is not only connected with jet f, the outlet i of injector 6
Also it is connected by the 3rd control valve 9 with gas returning port b.Now injector 6, the first control valve 7, the second control valve 8 and the 3rd control
Valve 9 constitutes the second vapor injection loop of air conditioner 100.Alternatively, the 3rd control valve 9 is magnetic valve.
Specifically, when the discharge capacity of air conditioner 100 is larger, and in Smaller load refrigerating operaton, the first control can now be opened
The control valve 8 of valve 7 and second processed causes injector 6 to work, appropriate to open the 3rd control valve 9, one discharged from first throttle element 4
Part refrigerant is entered in injector 6（Equivalent to unloaded a part arrive indoor heat exchanger 50 refrigerant）, now due to return-air
The pressure at mouthful b place is less than the pressure at jet f, and pressure is expelled back into from the refrigerants of the outlet i discharges of injector 6 by gas returning port b
In contracting machine 1, it is ensured that huge discharge Smaller load is continuously run, the generation of the phenomenons such as the frosting of indoor heat exchanger 50, condensation is prevented.It is simultaneously right
In low-temperature heating start-up course, the low pressure return-air amount of air conditioner 100 can also be supplemented by suitably opening the 3rd control valve 9.
So as to by provided with the 3rd control valve 9, and outlet i is caused to pass through the 3rd control valve 9 and the gas returning port b of compressor 1
It is connected, can prevents indoor heat exchanger 50 from the phenomenons such as frosting, condensation occur in Smaller load refrigerating operaton, start in low-temperature heating
Cheng Zhong, can supplement the low pressure return-air amount of air conditioner 100.
In some embodiments of the invention, air conditioner 100 also include gas-liquid separator 10, gas-liquid separator 10 include into
Mouth m and gas outlet n, entrance m connect with outlet i and the 4th valve port S-phase, and gas outlet n is connected with gas returning port b.That is, from the 4th
The refrigerant of the outlet i discharges of valve port S and injector 6 is entered in gas-liquid separator 10 by entrance m, enters gas-liquid separator
Refrigerant in 10 carries out gas-liquid separation in gas-liquid separator 10, and the gaseous coolant after separation is arranged by gas outlet n and gas returning port b
Return in compressor 1, so as to be only gaseous coolant by the refrigerant for ensureing to enter in compressor 1, it is to avoid liquid refrigerants enters
There is liquid hit phenomenon in compressor 1.
The structure of air conditioner 100 according to the preferred embodiment of the invention, wherein indoor set component 5 are described below with reference to Fig. 1
For one.
The exhaust outlet a of compressor 1 is connected with the first valve port D and the first control valve 7 of four-way valve 2, and the second of four-way valve 2
Valve port C is connected with the first end of outdoor heat exchanger 3, the second end of outdoor heat exchanger 3 and the first end phase of first throttle element 4
Even, the second end of first throttle element 4 is connected with the first end and the second control valve 8 of the second restricting element 51, the second throttling
Second end of element 51 is connected with the first end of indoor heat exchanger 50, the second end of indoor heat exchanger 50 and the 3rd of four-way valve 2 the
Valve port E is connected, and the 4th valve port S of four-way valve 2 is connected with the entrance m of the 3rd control valve 9 and gas-liquid separator 10, gas-liquid separator
10 gas outlet n is connected with the gas returning port b of compressor 1.
First import g of wherein injector 6 is connected with the first control valve 7, the controls of the second import h of injector 6 and second
Valve 8 is connected, and the outlet i of injector 6 is connected with the jet f and the 3rd control valve 9 of compressor 1.That is now gas-liquid separator
10 entrance m and the 4th valve port S-phase connect and are connected by the 3rd control valve 9 with the jet f of injector 6 and compressor 1.
Air conditioner 100 according to embodiments of the present invention, when low-temperature heating is run, when air conditioner 100 is needed in the middle of progress
During tonifying Qi, it can control the first control valve 7 and the second control valve 8 is opened and the 3rd control valve 9 is closed, from the exhaust outlet a of compressor 1
The refrigerant of the HTHP of discharge and from the second restricting element 51 discharge low pressure in low temperature liquid refrigerant enter in injector 6,
Injector 6 can not only be heated using high-temperature exhaust air to second vapor injection, to lift the degree of superheat of second vapor injection, be sprayed simultaneously
Device 6 can also reclaim the loss of a part of high pressure fluid reduction, so that by provided with the first control valve 7, the second control valve
8th, the 3rd control valve 9 and injector 6, can improve the ability efficiency of air conditioner 100.
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.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means to combine specific features, structure, material or the spy that the embodiment or example are described
Point is contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.Moreover, specific features, structure, material or the feature of description can be with office
Combined in an appropriate manner in one or more embodiments or example.In addition, in the case of not conflicting, the skill of this area
Art personnel can be tied the not be the same as Example or the feature of example and non-be the same as Example or example described in this specification
Close and combine.
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.
Claims (9)
1. a kind of air conditioner, it is characterised in that including：
Compressor, the compressor has exhaust outlet, gas returning port and jet；
Four-way valve, the four-way valve includes first to fourth valve port, and first valve port is connected with the exhaust outlet, and the described 4th
Valve port is connected with the gas returning port；
Outdoor heat exchanger, the first end of the outdoor heat exchanger is connected with second valve port；
First throttle element, the first end of the first throttle element is connected with the second end of the outdoor heat exchanger；
Indoor set component, the indoor set component includes an indoor heat exchanger and the second restricting element, the second throttling member
The first end of part is connected with the second end of the first throttle element, the indoor heat exchanger respectively with second restricting element
The second end be connected with the 3rd valve port；
Injector, the injector be provided with the first import, the second inlet and outlet, first import by the first control valve with
The exhaust outlet is connected, and second import is connected by the second control valve with the second end of the first throttle element, described
Outlet is connected with the jet, wherein when air conditioner is in low-temperature heating and run, first control valve and the second control
Valve is opened, and is entered from first import and second import after the refrigerant mixing in the injector from the outlet row
Go out and returned to by the jet in the compressor；
3rd control valve, the outlet is connected by the 3rd control valve with the gas returning port.
2. air conditioner according to claim 1, it is characterised in that the 3rd control valve is magnetic valve.
3. air conditioner according to claim 1, it is characterised in that the indoor set component is at least two.
4. air conditioner according to claim 3, it is characterised in that second throttling in each indoor set component
Element is used to adjust cold medium flux and carries out reducing pressure by regulating flow to refrigerant.
5. air conditioner according to claim 4, it is characterised in that second restricting element is electric expansion valve or heating power
Expansion valve.
6. air conditioner according to claim 1, it is characterised in that also including gas-liquid separator, the gas-liquid separator bag
Entrance and gas outlet are included, the entrance is connected with the outlet and the 4th valve port, the gas outlet and the gas returning port phase
Even.
7. air conditioner according to claim 1, it is characterised in that also including gas-liquid separator, the gas-liquid separator bag
Include entrance and gas outlet, the entrance and the 4th valve port are connected and pass through the 3rd control valve and the injector and institute
The jet for stating compressor is connected, and the gas outlet is connected with the gas returning port of the compressor.
8. air conditioner according to claim 1, it is characterised in that the first throttle element is electric expansion valve, throttling
Orifice plate, capillary or heating power expansion valve.
9. air conditioner according to claim 1, it is characterised in that first control valve and second control valve difference
For magnetic valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410136802.5A CN104976813B (en) | 2014-04-04 | 2014-04-04 | Air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410136802.5A CN104976813B (en) | 2014-04-04 | 2014-04-04 | Air conditioner |
Publications (2)
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105928266B (en) * | 2016-05-23 | 2018-06-05 | 广东美的暖通设备有限公司 | Multi-line system and its control method for heating restricting element |
| CN106196694B (en) * | 2016-07-11 | 2019-04-02 | 广东美的暖通设备有限公司 | Air-conditioning system |
| CN106152582A (en) * | 2016-07-11 | 2016-11-23 | 格力电器（芜湖）有限公司 | A kind of air conditioning system |
| CN108592463A (en) * | 2018-04-20 | 2018-09-28 | 珠海格力电器股份有限公司 | Air conditioner heat pump system and control method |
| CN108800393B (en) * | 2018-08-07 | 2024-05-07 | 珠海格力电器股份有限公司 | Air conditioning system |
| CN110173831A (en) * | 2019-05-20 | 2019-08-27 | 广东美的制冷设备有限公司 | The control method of air conditioner and air conditioner |
| CN110160207A (en) * | 2019-05-20 | 2019-08-23 | 广东美的制冷设备有限公司 | The control method of air conditioner and air conditioner |
| CN112361638B (en) * | 2019-07-25 | 2021-11-26 | 青岛海尔空调电子有限公司 | Air conditioning system |
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| CN1920446A (en) * | 2005-08-22 | 2007-02-28 | 谷轮公司 | Compressor with vapor injection system |
| CN201666698U (en) * | 2009-12-31 | 2010-12-08 | 海信科龙电器股份有限公司 | Air conditioner capable of increasing low-temperature heating quantity |
| CN102869930A (en) * | 2010-04-27 | 2013-01-09 | 三菱电机株式会社 | Refrigeration cycle device and refrigerant circulation method |
| CN203286808U (en) * | 2013-04-25 | 2013-11-13 | 珠海格力电器股份有限公司 | Heat pump or refrigerating system |
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| JP5213986B2 (en) * | 2011-04-13 | 2013-06-19 | 三菱電機株式会社 | Refrigeration cycle equipment |
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| CN1920446A (en) * | 2005-08-22 | 2007-02-28 | 谷轮公司 | Compressor with vapor injection system |
| CN201666698U (en) * | 2009-12-31 | 2010-12-08 | 海信科龙电器股份有限公司 | Air conditioner capable of increasing low-temperature heating quantity |
| CN102869930A (en) * | 2010-04-27 | 2013-01-09 | 三菱电机株式会社 | Refrigeration cycle device and refrigerant circulation method |
| CN203286808U (en) * | 2013-04-25 | 2013-11-13 | 珠海格力电器股份有限公司 | Heat pump or refrigerating system |
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