CN106500390A - Heating and air conditioner and its control method - Google Patents
Heating and air conditioner and its control method Download PDFInfo
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- CN106500390A CN106500390A CN201610883633.0A CN201610883633A CN106500390A CN 106500390 A CN106500390 A CN 106500390A CN 201610883633 A CN201610883633 A CN 201610883633A CN 106500390 A CN106500390 A CN 106500390A
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 115
- 238000000034 method Methods 0.000 title claims abstract description 49
- 239000007788 liquid Substances 0.000 claims abstract description 136
- 239000003507 refrigerant Substances 0.000 claims abstract description 67
- 238000001514 detection method Methods 0.000 claims description 194
- 238000005057 refrigeration Methods 0.000 claims description 38
- 238000012360 testing method Methods 0.000 claims description 33
- 230000001681 protective effect Effects 0.000 claims description 25
- 238000013461 design Methods 0.000 claims description 24
- 230000001105 regulatory effect Effects 0.000 claims description 16
- 238000001816 cooling Methods 0.000 claims description 7
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 239000012530 fluid Substances 0.000 description 19
- 230000008859 change Effects 0.000 description 17
- 238000004378 air conditioning Methods 0.000 description 15
- 238000007906 compression Methods 0.000 description 12
- 230000006835 compression Effects 0.000 description 10
- 238000007710 freezing Methods 0.000 description 8
- 230000008014 freezing Effects 0.000 description 8
- 238000000926 separation method Methods 0.000 description 7
- 239000002826 coolant Substances 0.000 description 6
- 238000007689 inspection Methods 0.000 description 4
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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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
-
- 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
-
- 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
- F25B41/34—Expansion valves with the valve member being actuated by electric means, e.g. by piezoelectric actuators
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- 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
-
- 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
- F25B2400/19—Pumping down refrigerant from one part of the cycle to another part of the cycle, e.g. when the cycle is changed from cooling to heating, or before a defrost cycle is started
-
- 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
- F25B2500/00—Problems to be solved
- F25B2500/09—Improving heat transfers
-
- 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
- F25B2600/2513—Expansion valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/19—Pressures
- F25B2700/193—Pressures of the compressor
- F25B2700/1931—Discharge pressures
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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
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/21—Temperatures
- F25B2700/2106—Temperatures of fresh outdoor air
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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
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/21—Temperatures
- F25B2700/2115—Temperatures of a compressor or the drive means therefor
- F25B2700/21152—Temperatures of a compressor or the drive means therefor at the discharge side of the compressor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a kind of heating and air conditioner and its control method.Heating and air conditioner includes：Duplex cylinder compressor, commutation component, outdoor heat exchanger, indoor heat exchanger, gas-liquid separator, refrigerant radiator and check valve, the air entry of the first cylinder are connected with the first reservoir；Commutation component includes that the first valve port to the 4th valve port, the 4th valve port are connected with the first reservoir；Gas-liquid separator includes gas vent, first interface and second interface, gas vent and the second cylinders, the adjustable first throttle element of aperture is in series between first interface and outdoor heat exchanger, is in series with the second restricting element of fixed aperture between second interface and indoor heat exchanger.Between outdoor heat exchanger and first throttle element, check valve is connected in parallel refrigerant radiator tandem with refrigerant radiator.The heating and air conditioner of the present invention, effectively improves energy efficiency of air conditioner.
Description
Technical field
The present invention relates to refrigerating field, more particularly, to a kind of heating and air conditioner and its control method.
Background technology
Current air-conditioning refrigeration system is not to after throttling and the gaseous refrigerant that enters before evaporimeter is optimized circulation
Design, causes gaseous refrigerant to affect evaporator heat exchange performance, and increases compressor compresses power consumption, so as to have influence on air-conditioner
Efficiency level.Air injection enthalpy-increasing and Two-stage Compression technology can improve heating capacity water of the air-conditioning system under low temperature and ultralow temperature
Flat, but for the commonly used cooling condition of air-conditioning, efficiency is lifted very limited.
Content of the invention
It is contemplated that at least solving one of technical problem in correlation technique to a certain extent.
For this purpose, the present invention proposes a kind of heating and air conditioner, energy efficiency of air conditioner can be effectively improved.
The present invention also proposes a kind of control method of above-mentioned heating and air conditioner.
Heating and air conditioner according to embodiments of the present invention, including：Duplex cylinder compressor, the duplex cylinder compressor include shell
Body, the first cylinder, the second cylinder and the first reservoir, the housing are provided with exhaust outlet, first cylinder and described second
Cylinder is respectively provided in the housing, and first reservoir is located at outside the housing, the air entry of first cylinder and institute
State the connection of the first reservoir；Commutation component, the commutation component include the first valve port to the 4th valve port, first valve port and the
In one of connection in two valve ports and the 3rd valve port, the 4th valve port and second valve port and the 3rd valve port
Another connection, first valve port are connected with the exhaust outlet, and the 4th valve port is connected with first reservoir；Outdoor
Heat exchanger and indoor heat exchanger, the first end of the outdoor heat exchanger are connected with second valve port, the indoor heat exchanger
First end is connected with the 3rd valve port；Gas-liquid separator, the gas-liquid separator include gas vent, first interface and second
Interface, the gas vent are connected with the air entry of second cylinder, the first interface and the of the outdoor heat exchanger
Two ends are connected, and the second interface is connected with the second end of the indoor heat exchanger, the first interface and the outdoor heat exchange
First throttle element is in series between device, is in series with the second restricting element between the second interface and the indoor heat exchanger；
For the refrigerant radiator radiated by electric control element, the refrigerant radiator tandem is in the outdoor heat exchanger and described
Between one restricting element；Check valve, the check valve are connected in parallel with the refrigerant radiator, and the check valve is from described
One restricting element is to one-way conduction on the direction of the outdoor heat exchanger.
Heating and air conditioner according to embodiments of the present invention, can improve heat exchange efficiency, reduce compressor compresses power consumption, enter
One step improves air-conditioner ability and efficiency, further through refrigerant radiator is arranged, can carry out effective temperature-reducing to electric control element.
In some embodiments of the invention, the first throttle element be electric expansion valve, capillary or choke valve,
Second restricting element is electric expansion valve, capillary or choke valve.
In some embodiments of the invention, electricity is in series between the air entry of the gas vent and second cylinder
Magnet valve.
In some embodiments of the invention, the span of gas-liquid separator volume is 100mL-500mL.
In some embodiments of the invention, the duplex cylinder compressor also includes the second liquid storage being located at outside the housing
Device, second reservoir are connected between the air entry of the gas vent and second cylinder.
Preferably, volume of the volume of first reservoir more than the second reservoir.
Preferably, the span of the ratio of the delivery space of second cylinder and first cylinder be 1%～
10%.
The control method of heating and air conditioner according to embodiments of the present invention, the heating and air conditioner are according to the present invention
The heating and air conditioner of above-described embodiment, when heating and air conditioner is run, the first throttle element and second throttling are first
The restricting element for being located at upstream in part is one-level restricting element, the first throttle element and the second restricting element middle position in
The restricting element in downstream is two-step throttle element；When the aperture of the first throttle element and second restricting element adjustable
When, the control method comprises the steps：The one-level throttling is adjusted according to the testing result to the first detection object first
Then the aperture of element adjusts opening for the two-step throttle element according to the testing result to the second detection object to aperture is set
Spend to setting aperture, the settings aperture of the one-level restricting element is less than the setting aperture of the two-step throttle element, described the
The testing result of one detection object is different from the testing result of second detection object；When the first throttle element and described
When one of aperture in second restricting element is adjustable and another aperture is fixed, the control method comprises the steps：
The aperture that the adjustable restricting element of aperture is adjusted according to the testing result to the first detection object in refrigerating operaton is opened to setting
Degree；The aperture of the adjustable restricting element of aperture is adjusted to setting always according to the testing result to the second detection object during heating operation
Aperture；When the aperture of the first throttle element and second restricting element is fixed, the control method includes as follows
Step：Compressor operation parameters and/or outdoor environment temperature according to detecting adjust the running frequency of the duplex cylinder compressor
To condition is met, wherein described compressor operation parameters include at least one of running current, pressure at expulsion, delivery temperature；
Wherein described first detection object includes outdoor environment temperature, the running frequency of duplex cylinder compressor, the delivery temperature of exhaust outlet, row
The pressure at expulsion of gas port, the intermediate pressure of the refrigerant that discharges from the gas vent, the refrigerant that discharges from the gas vent
At least one of medium temperature, gas-liquid separator temperature, pressure of the gas and liquid separator；Second detection object includes outdoor ring
Border temperature, the running frequency of duplex cylinder compressor, the delivery temperature of exhaust outlet, the pressure at expulsion of exhaust outlet, from the gas vent
The intermediate pressure of the refrigerant of discharge, the medium temperature of the refrigerant that discharges from the gas vent, gas-liquid separator temperature, gas-liquid point
From at least one of device pressure.
The control method of air-conditioner according to embodiments of the present invention so that the efficiency of system is optimal.
In some embodiments of the invention, first detection object and/or second detection object are outdoor ring
Border temperature T4, running frequency F and pressure at expulsion；Or be outdoor environment temperature T4, running frequency F and delivery temperature, first root
Setting pressure at expulsion is calculated according to the outdoor environment temperature T4 and running frequency F or sets delivery temperature, then
According to the actually detected pressure at expulsion for arriving or delivery temperature adjust the adjustable restricting element of corresponding aperture aperture so that
The pressure at expulsion or delivery temperature for detecting reaches setting pressure at expulsion or sets delivery temperature.
In some embodiments of the invention, multiple outdoor temperatures are preset interval, each described outdoor temperature is interval corresponding
The aperture of different restricting elements, the first detection object and/or the second detection object are outdoor environment temperature T4, according to actual inspection
The interval corresponding opening value of outdoor temperature that the outdoor environment temperature T4 that measures is located adjusts the adjustable throttling unit of corresponding aperture
The aperture of part.
In some embodiments of the invention, medium temperature or default intermediate pressure, first detection object are preset
And/or second detection object be intermediate pressure or medium temperature, according to the actually detected intermediate pressure for arriving or medium temperature
Adjust the aperture of the adjustable restricting element of corresponding aperture so that the intermediate pressure or medium temperature that detect reach default
Intermediate pressure or default medium temperature.
In some embodiments of the invention, multiple outdoor temperatures are preset interval, each described outdoor temperature is interval corresponding
The design temperature of the different gas-liquid separators, first detection object and/or second detection object are outdoor ring
Border temperature T4 and the temperature of the gas-liquid separator, first according to actually detected to outdoor environment temperature T4 obtain be located room
The design temperature of the corresponding gas-liquid separator of outer temperature range, the aperture for then adjusting the adjustable restricting element of corresponding aperture are straight
To actually detected to the temperature of the gas-liquid separator meet the design temperature.
In some embodiments of the invention, when the aperture of the first throttle element and second restricting element is solid
Regularly, multiple outdoor temperatures intervals are preset, heats stoppage protection electric current and refrigeration stoppage protection electric current, multiple outdoor temperatures are interval
Corresponding different limit frequency protective current, detects outdoor environment temperature, first then according to the outdoor environment temperature for detecting
The outdoor temperature interval at place obtains corresponding limit frequency protective current, adjusts the running frequency so that the actually detected operation that arrives
Electric current reaches the limit frequency protective current accordingly, and the running current for wherein detecting when cooling stops more than the refrigeration
Then directly shut down during machine protective current；The running current detected when heating more than described heat stoppage protection electric current when
Then directly shut down.
In some embodiments of the invention, when the aperture of the first throttle element and second restricting element is solid
Regularly, multiple different pressures at expulsion intervals, the regulating command of the interval corresponding running frequency of the plurality of pressure at expulsion are preset
Difference, the interval corresponding regulating command regulation institute of the pressure at expulsion that the detection pressure at expulsion pressure at expulsion that simultaneously basis is detected is located
State running frequency.
Description of the drawings
Fig. 1 is schematic diagram when being freezed according to the heating and air conditioner of the embodiment of the present invention；
Fig. 2 is schematic diagram when being heated according to the heating and air conditioner of the embodiment of the present invention；
Fig. 3 is the schematic diagram of the duplex cylinder compressor according to the embodiment of the present invention；
Fig. 4 is the flow chart of control method when being freezed according to the heating and air conditioner of the embodiment of the present invention, wherein first
The aperture of restricting element and the second restricting element is adjustable；
Fig. 5 is the flow chart of control method when being heated according to the heating and air conditioner of the embodiment of the present invention, wherein first
The aperture of restricting element and the second restricting element is adjustable；
Fig. 6 is the flow chart of control method when being freezed according to the heating and air conditioner of the embodiment of the present invention, wherein first
Restricting element aperture is fixed, and the second restricting element aperture is adjustable；
Fig. 7 is the flow chart of control method when being heated according to the heating and air conditioner of the embodiment of the present invention, wherein first
Restricting element aperture is fixed, and the second restricting element aperture is adjustable；
Fig. 8 is the flow chart of control method when being freezed according to the heating and air conditioner of the embodiment of the present invention, wherein first
Restricting element aperture is adjustable, and the second restricting element aperture is fixed；
Fig. 9 is the flow chart of control method when being heated according to the heating and air conditioner of the embodiment of the present invention, wherein first
Restricting element aperture is adjustable, and the second restricting element aperture is fixed；
Figure 10 is the flow chart of the control method of the heating and air conditioner according to the embodiment of the present invention, wherein first throttle unit
The aperture of part and the second restricting element is fixed.
Reference：
Heating and air conditioner 100,
Duplex cylinder compressor 1, housing 10, the first cylinder 11, the second cylinder 12, the first reservoir 13, the second reservoir 14, row
Gas port 15,
Commutation component 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, indoor heat exchanger 4,
Gas-liquid separator 5, gas vent m, first interface f, second interface g,
First throttle element 6, the second restricting element 7,
Check valve 8, refrigerant radiator 9.
Specific embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings.Below with reference to
The embodiment of Description of Drawings is exemplary, it is intended to for explaining the present invention, and be not considered as limiting the invention.
In describing the invention, it is to be understood that term " " center ", " longitudinal direction ", " horizontal ", " length ", " width ",
" thickness ", " on ", D score, "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outward ", " up time
The orientation of instruction such as pin ", " counterclockwise ", " axial direction ", " radially ", " circumference " or position relationship be based on orientation shown in the drawings or
Position relationship, is for only for ease of description description of the invention and simplified, rather than indicates or imply that the device or element of indication must
Therefore must be not considered as limiting the invention with specific orientation, with specific azimuth configuration and operation.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or hint 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 this feature.In describing the invention, " multiple " are meant that at least two, such as two, three
Individual etc., unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, or integral；Can be that machinery connects
Connect, or electrically connect or can communicate each other；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, can be with
It is connection or the interaction relationship of two elements of two element internals, unless otherwise clearly restriction.For this area
For those of ordinary skill, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
Heating and air conditioner 100 according to embodiments of the present invention is described in detail below with reference to Fig. 1-Fig. 3, wherein cold-warm type is empty
Adjust device 100 that there is refrigeration mode and heating mode.
As shown in Figure 1-Figure 3, heating and air conditioner 100 according to embodiments of the present invention, including：Duplex cylinder compressor 1, commutation
Component 2, outdoor heat exchanger 3 and indoor heat exchanger 4, gas-liquid separator 5, first throttle element 6, the second restricting element 7, refrigerant dissipate
Hot device 9 and check valve 8.Wherein duplex cylinder compressor 1 includes housing 10, the first cylinder 11, the second cylinder 12 and the first reservoir 13,
Housing 10 is provided with exhaust outlet 15, and the first cylinder 11 and the second cylinder 12 are respectively provided in housing 10, and the first reservoir 13 is located at
Outside housing 10, the air entry of the first cylinder 11 is connected with the first reservoir 13.That is, the first cylinder 11 and the second cylinder 12
Carry out independent compression process, from the first cylinder 11 discharge compression after refrigerant and from the second cylinder 12 discharge compression after cold
Matchmaker is drained in housing 10 respectively and then discharges from exhaust outlet 15.
Commutation component 2 includes the first valve port S of valve port D to the 4th, in the first valve port D and the second valve port C and the 3rd valve port E
One of connection, the 4th valve port S are connected with another in the second valve port C and the 3rd valve port E, the first valve port D and row
Gas port 15 is connected, and the 4th valve port S is connected with the first reservoir 13.The first end of outdoor heat exchanger 3 is connected with the second valve port C, room
The first end of interior heat exchanger 4 is connected with the 3rd valve port E.Specifically, when heating and air conditioner 100 is freezed, the first valve port D and
Two valve port C are connected and the 3rd valve port E is connected with the 4th valve port S, when heating and air conditioner 100 is heated, the first valve port D and the 3rd
Valve port E is connected and the second valve port C is connected with the 4th valve port S.Preferably, commutation component 2 is cross valve.
Gas-liquid separator 5 includes gas vent m, first interface f and second interface g, gas vent m and the second cylinder 12
Air entry is connected, and first interface f is connected with the second end of outdoor heat exchanger 3, the second end of second interface g and indoor heat exchanger 4
Be connected, first throttle element 6 is in series between first interface f and outdoor heat exchanger 3, between second interface g and indoor heat exchanger 4
It is in series with the second restricting element 7.Alternatively, first throttle element 6 be electric expansion valve, capillary or choke valve, second section
Fluid element 7 is electric expansion valve, capillary or choke valve.
Refrigerant radiator 9 is used for radiating electric control element, and refrigerant radiator 9 is connected on outdoor heat exchanger 3 and first
Between restricting element 6.As long as it is understood that the structure of refrigerant radiator 9 can circulate refrigerant i.e. for varied
Can, for example refrigerant radiator 9 can include the metal tube for extending that wriggles.
Check valve 8 is connected in parallel with refrigerant radiator 9, and check valve 8 is from first throttle element 6 to outdoor heat exchanger 3
One-way conduction on direction, during refrigeration, check valve 8 ends the circulation of refrigerant, and when heating, refrigerant flows through check valve 8.
As shown in figure 1, when heating and air conditioner 100 is freezed, the high temperature that discharges from the exhaust outlet 15 of duplex cylinder compressor 1 is high
Pressure refrigerant is drained in outdoor heat exchanger 3 by the first valve port D and the second valve port C and carries out condensation radiating, due to cutting for check valve 8
Only act on, the liquid refrigerants that discharges from outdoor heat exchanger 3 is drained in refrigerant radiator 9 to be radiated with electric control element, from
And the temperature of electric control element can be reduced, and refrigerant temperature can be avoided too low and cause electric control element to produce dew condensation phenomenon.
The refrigerant that discharges from refrigerant radiator 9 is arranged from first interface f after the one-level reducing pressure by regulating flow of first throttle element 6
Entering carries out gas-liquid separation in gas-liquid separator 5, and the intermediate pressure gaseous coolant that separates is drained into second from gas vent m
It is compressed in cylinder 12.
Two grades through the second restricting element 7 of the intermediate pressure liquid refrigerant that discharges from second interface g of gas-liquid separator 5
It is drained into after reducing pressure by regulating flow in indoor heat exchanger 4 and is exchanged heat to reduce indoor environment temperature, from the cold of the discharge of indoor heat exchanger 4
Matchmaker is drained in the first reservoir 13 by the 3rd valve port E and the 4th valve port S, and the refrigerant that discharges from the first reservoir 13 is drained into
It is compressed in first cylinder 11.
As shown in Fig. 2 when heating and air conditioner 100 is heated, the high temperature that discharges from the exhaust outlet 15 of duplex cylinder compressor 1 is high
Pressure refrigerant is drained in indoor heat exchanger 4 by the first valve port D and the 3rd valve port E to carry out condensation radiating to raise indoor environment temperature
Degree, from indoor heat exchanger 4 discharge high-pressure liquid refrigerant after the one-level reducing pressure by regulating flow of the second restricting element 7 from second interface
G is drained in gas-liquid separator 5 carries out gas-liquid separation, and the intermediate pressure gaseous coolant that separates is drained into from gas vent m
It is compressed in second cylinder 12.
Two grades through first throttle element 6 of the intermediate pressure liquid refrigerant that discharges from the first interface f of gas-liquid separator 5
Reducing pressure by regulating flow, as the conducting of check valve 8 is acted on, most of refrigerant is drained in outdoor heat exchanger 3 and is exchanged heat, and changes from outdoor
The refrigerant that hot device 3 is discharged is drained in the first reservoir 13 by the second valve port C and the 4th valve port S, from 13 row of the first reservoir
The refrigerant for going out is drained in the first cylinder 11 and is compressed.
Thus analysis understands that, when heating and air conditioner 100 is run, the refrigerant of different pressures state has respectively entered first
In cylinder 11 and the second cylinder 12,12 complete independently compression process of the first cylinder 11 and the second cylinder is discharged from the first cylinder 11
Compression after refrigerant and the refrigerant after the compression discharged from the second cylinder 12 be discharged in housing 10 after mixing from 15 row of exhaust outlet
Go out.
Simultaneously by being provided with gas-liquid separator 5 between outdoor heat exchanger 3 and indoor heat exchanger 4, so as to gas-liquid separator 5
It is expelled back into after a part of gaseous coolant is separated in the second cylinder 12 and is compressed, when thus reducing refrigeration, is flowed into room
Gas content in the refrigerant of interior heat exchanger 4 and the gas content being flowed into when heating in the refrigerant of outdoor heat exchanger 3 is reduced,
Impact of the gaseous coolant to the heat exchange property of indoor heat exchanger 4 or outdoor heat exchanger 3 as evaporimeter is reduced, so as to can
To improve heat exchange efficiency, reduce compressor compresses power consumption.
Heating and air conditioner 100 according to embodiments of the present invention, can improve heat exchange efficiency, reduce compressor compresses work(
Consumption, further improves air-conditioner ability and efficiency, and due to arranging refrigerant radiator 9, electric control element effectively can be dropped
Temperature.
In some currently preferred embodiments of the present invention, the value of the delivery space ratio of the second cylinder 12 and the first cylinder 11
Scope is 1%～10%, and the refrigerant that flow is less and pressure state is higher is drained in less second cylinder 12 of delivery space
It is compressed, such that it is able to improve efficiency, energy-saving and emission-reduction.Further, the delivery space of the second cylinder 12 and the first cylinder 11
The span of ratio is 1%～9%, it is preferable that the value model of the delivery space ratio of the second cylinder 12 and the first cylinder 11
Enclose for 4%～9%.The delivery space ratio of such as the second cylinder 12 and the first cylinder 11 can be 4%, 5%, 8% or 8.5%
Etc. parameter.
In some embodiments of the invention, magnetic valve is in series between the air entry of gas vent m and the second cylinder 12,
Thus, when the liquid coolant in gas-liquid separator 5 exceeds safety levels, liquid refrigerants can be avoided to enter by closing magnetic valve
Enter in the second cylinder 12, liquid hammer occurs such that it is able to avoid duplex cylinder compressor 1, extends the service life of duplex cylinder compressor 1.Enter
One step ground, can arrange liquid level sensor on gas-liquid separator 5, control magnetic valve by the testing result of liquid level sensor
Open and-shut mode.
In some embodiments of the invention, the span of the volume of gas-liquid separator 5 is 100mL-500mL.
In some embodiments of the invention, as depicted in figs. 1 and 2, duplex cylinder compressor 1 also includes being located at outside housing 10
Second reservoir 14, the second reservoir 14 are connected between the air entry of gas vent m and the second cylinder 12.So as to pass through to arrange
There is the second reservoir 14, further gas-liquid separation can be carried out to the refrigerant that the gas vent m from gas-liquid separator 5 is discharged, can
Further to avoid liquid coolant from returning in the second cylinder 12, there is liquid hit phenomenon so as to avoid duplex cylinder compressor 1, improve twin-tub
The service life of compressor 1.
In further embodiment of the present invention, the volume of the first reservoir 13 is more than the volume of the second reservoir 14.From
And on the premise of the decrement of the second cylinder 12 is ensured, less by the volume for causing the second reservoir 14, can reduce into
This.Preferably, the volume of the second reservoir 14 is not more than 1/2nd of 13 volume of the first reservoir.
Inventor is by heating and air conditioner (the second cylinder 12 and the first cylinder 11 according to above preferred embodiment of the present invention
Delivery space ratio span be 1%～10%, set rated cooling capacity as 3.5kw, by the second cylinder and the first gas
The delivery space ratio of cylinder is set as the efficiency 7.6%) under different operating modes with existing heating and air conditioner in identical work
Efficiency under condition is compared, and obtains following data：
| Measurement condition | Prior art efficiency | Technical solution of the present invention efficiency | Lifting ratio |
| Specified refrigeration | 3.93 | 4.26 | 8.40% |
| Middle refrigeration | 5.88 | 6.18 | 5.10% |
| Specified heat | 3.64 | 3.91 | 7.42% |
| Centre heats | 5.55 | 5.89 | 6.13% |
| Low-temperature heating | 2.57 | 2.73 | 6.23% |
| APF | 4.61 | 4.92 | 6.72% |
It follows that heating and air conditioner according to embodiments of the present invention is relative to existing cold-warm type compressor, each work
Condition efficiency and annual efficiency APF are obviously improved.
Simultaneously inventor is by different rated cooling capacities and the cold-warm type air-conditioning of the embodiment of the present invention of different delivery space ratios
Device is compared with the heating and air conditioner under existing identical operating mode, it is found that efficiency has lifting, and such as inventor is through examination
The heating and air conditioner for issuing after examination and approval the existing embodiment of the present invention (sets rated cooling capacity as 2.6kw, by the second cylinder and the first cylinder
Delivery space ratio is set as that efficiency improves 7.3% 9.2%) compared with the heating and air conditioner under existing identical operating mode.
With reference to the control method that Fig. 1-Fig. 2, Fig. 4 and Fig. 5 describe air-conditioner according to embodiments of the present invention in detail, which is hollow
It is the heating and air conditioner according to the above embodiment of the present invention to adjust device.First throttle element and the aperture of the second restricting element
Adjust.
When air-conditioner runs, the restricting element of first throttle element and the second restricting element middle position in upstream throttles for one-level
The restricting element of element, first throttle element and the second restricting element middle position in downstream is two-step throttle element, in other words, in system
When cold, first throttle element is one-level restricting element, and the second restricting element is two-step throttle element.When heating, the second throttling
Element is one-level restricting element, and first throttle element is two-step throttle element.
Control method according to embodiments of the present invention comprises the steps：Tied according to the detection to the first detection object first
Fruit adjusts the aperture of one-level restricting element, then opening according to the testing result adjustment two-step throttle element to the second detection object
Degree, the setting aperture of the settings aperture of one-level restricting element less than two-step throttle element, the testing result of the first detection object and
The testing result of the second detection object is different.Need to illustrate, the testing result of the first detection object is detected with second
The testing result difference of object refers to one-level restricting element and two-step throttle element can not be while be entered using same state parameter
Row adjusts control, in other words, for adjusting relevant parameter needed for one-level restricting element and for adjusting two-step throttle element
Required relevant parameter different.
Wherein the first detection object includes the exhaust temperature of outdoor environment temperature, the running frequency of duplex cylinder compressor, exhaust outlet
Degree, the pressure at expulsion of exhaust outlet, the intermediate pressure of the refrigerant that discharges from gas vent, the centre of the refrigerant that discharges from gas vent
At least one of temperature.Second detection object includes outdoor environment temperature, the running frequency of duplex cylinder compressor, the row of exhaust outlet
Temperature degree, the pressure at expulsion of exhaust outlet, the intermediate pressure of the refrigerant that discharges from gas vent, the refrigerant that discharges from gas vent
At least one of medium temperature.
That is, as shown in Figure 4 and Figure 5, no matter freeze or heat, when air-conditioner runs, equal acquisition process control
Parameter needed for one-level restricting element processed and two-step throttle element, the parameter that then basis is obtained all are first to adjust one-level throttling unit
The aperture of part is until setting aperture, then adjusts the aperture of two-step throttle element again until setting aperture, when one-level restricting element
Adjust when aperture is set with two-step throttle element, the aperture of one-level restricting element is less than the aperture of two-step throttle element.When
So it is understood that parameter and acquisition process needed for acquisition process control one-level restricting element control two-step throttle element institute
The step of parameter for needing, can carry out successively carrying out simultaneously.
After the aperture of one-level restricting element and the aperture of two-step throttle element are satisfied by condition, can operation the n seconds after,
Again the first detection object and the second detection object is detected, one-level restricting element and two-step throttle is adjusted according to testing result then
The aperture of element, so repeats.Certain repeat condition not limited to this, for example can be after the operational order for receiving user, weight
The first detection object of new detection and the second detection object, then adjust one-level restricting element and two-step throttle unit according to testing result
The aperture of part.In other words, when freezing or heat, condition is satisfied by the aperture of one-level restricting element and two-step throttle element
Afterwards, first throttle element and the second restricting element can be opened in the operation n seconds or after the operation signal for receiving user
The relevant parameter of degree detects judgement again, then adjusts opening for first throttle element and the second restricting element according to result of determination
Degree, so repeats.
The control method of air-conditioner according to embodiments of the present invention, by the first aperture of regulation one-level restricting element and then again
The aperture of two-step throttle element is adjusted, so that the efficiency of system is optimal.
Control method according to several specific embodiments of the invention, wherein first throttle element and the second throttling are described below
The aperture of element is adjustable.
Embodiment 1：
In this embodiment, the first detection object and the second detection object are outdoor environment temperature T4 and running frequency F,
Outdoor environment temperature T4 and running frequency F according to detecting is calculated the setting of one-level restricting element and two-step throttle element
Aperture, then according to the aperture for setting the corresponding one-level restricting element of aperture adjustment and two-step throttle element.
It is understood that computing formula is located in the electric control element of air-conditioner in advance, computing formula can be according to reality
Situation is specifically limited.
Specifically, during refrigeration, aperture LA_cool_1 of first throttle element and outdoor environment temperature T4 and running frequency F
Between relational expression be：LA_cool_1=a1·F+b1T4+c1, when aperture LA_cool_1 for calculating is more than the first segment of collection
During the actual aperture of fluid element, the aperture of first throttle element is increased to calculating aperture；Otherwise turn down.
Relational expression between aperture LA_cool_2 of the second restricting element and outdoor environment temperature T4 and running frequency F is：
LA_cool_2=a2·F+b2T4+c2, when aperture LA_cool_2 for calculating is more than the actual aperture of the second restricting element of collection
When, the aperture of the second restricting element is increased to calculating aperture；Otherwise turn down.Wherein, 0≤a1≤ 20,0≤b1≤ 20, -50≤
c1≤100；0≤a2≤ 30,0≤b2≤ 30, -50≤c2≤ 150 control coefrficient a, b, c can be 0, and when any of which, one is
When number is zero, it was demonstrated that the corresponding parameter of the coefficient is on restricting element aperture without impact.
Pass when heating, between aperture LA_heat_1 of the second restricting element and outdoor environment temperature T4 and running frequency F
It is that formula is：LA_heat_1=x1·F+y1T4+z1, when aperture LA_heat_1 for calculating is more than the second restricting element of collection
During actual aperture, the aperture of the second restricting element is increased to calculating aperture；Otherwise turn down.
Relational expression between aperture LA_heat_2 of first throttle element and outdoor environment temperature T4 and running frequency F is：
LA_heat_2=x2·F+y2T4+z2, when aperture LA_heat_2 for calculating is more than the actual aperture of the first throttle element of collection
When, the aperture of first throttle element is increased to calculating aperture；Otherwise turn down.Wherein, 0≤x1≤ 15,0≤y1≤ 15, -50≤
z1≤100；0≤x2≤ 25,0≤y2≤ 25, -50≤z2≤ 150 control coefrficient x, y, z can be 0, and when any of which, one is
When number is zero, it was demonstrated that the corresponding parameter of the coefficient is on restricting element aperture without impact.
For example in refrigeration, outdoor environment temperature is detected for 35 DEG C, compressor operating frequency is 58Hz, sets a1=1,
b1=1.6, c1=6；a2=1.5, b2=1.6, c2=17.System calculates first according to the frequency and T4 values that collect first
The aperture of restricting element should be 120, adjust the aperture of first throttle element to 120；Then the second restricting element is calculated
Aperture is 160, adjusts the aperture of the second restricting element to 160.After maintaining aperture 200s of two restricting elements, detection again is pressed
Contracting machine running frequency and T4 values；Or the adjustment according to user to air-conditioning, detection compressor operating frequency and T4 values, to first segment
Fluid element and the second restricting element are readjusted.
According to this adjustment mode, air conditioner Energy Efficiency Ratio equivalent specifications air-conditioner in the market, efficiency are high by 6.5%.
When heating, outdoor environment temperature is detected for 7 DEG C, compressor operating frequency is 72Hz, sets x1=2.0, y1=
3.0,z1=22.0；x2=1, y2=3.0, z2=7.0.System calculates second section according to the frequency and T4 values that collect first
The aperture of fluid element should be 187, adjust the aperture of the second restricting element to 187；Then opening for first throttle element is calculated
Spend for 100, the aperture of first throttle element is adjusted to 100.After maintaining aperture 200s of two restricting elements, detection compression again
Machine running frequency and T4 values, or the adjustment according to user to air-conditioning, detection compressor operating frequency and T4 values, to first throttle
Element and the second restricting element are readjusted.
According to this adjustment mode, air conditioner Energy Efficiency Ratio equivalent specifications air-conditioner in the market, efficiency are high by 6.5%.
Embodiment 2：
In this embodiment, the first detection object is outdoor environment temperature T4 and running frequency F, first according to outdoor environment
Temperature T4 and running frequency F are calculated the setting aperture of one-level restricting element, then according to setting aperture adjustment one-level throttling
The aperture of element；
Second detection object is outdoor environment temperature T4, running frequency F and pressure at expulsion；Or second detection object be room
External environment temperature T4, running frequency F and delivery temperature, are calculated according to outdoor environment temperature T4 and running frequency F first and set
Determine pressure at expulsion or set delivery temperature, two grades of sections are adjusted according to the actually detected pressure at expulsion for arriving or delivery temperature then
The aperture of fluid element is so that the pressure at expulsion or delivery temperature that detect reach setting pressure at expulsion or set exhaust temperature
Degree.
Specifically, during refrigeration, aperture LA_cool_1 of first throttle element and outdoor environment temperature T4 and running frequency F
Between relational expression be：LA_cool_1=a1·F+b1T4+c1, when aperture LA_cool_1 for calculating is more than the first segment of collection
During the actual aperture of fluid element, the aperture of first throttle element is increased to calculating aperture；Otherwise turn down.
When the second detection object includes delivery temperature, delivery temperature TP and outdoor environment temperature T4 and running frequency F it
Between relational expression be：TP_cool=a2·F+b2T4+c2, when the second detection object includes pressure at expulsion, pressure at expulsion P row with
Relational expression between outdoor environment temperature T4 and running frequency F is：P rows _ cool=a3·F+b3T4+c3, when the exhaust for collecting
When temperature or pressure at expulsion are more than the setting delivery temperature or setting pressure at expulsion for calculating, opening for big second restricting element is opened
Degree；Otherwise turn down.Wherein 0≤a1≤ 20,0≤b1≤ 20, -50≤c1≤ 100,0≤a2≤ 30,0≤b2≤ 30, -50≤c2≤
150,0≤a3≤ 30,0≤b3≤ 30, -50≤c3≤150.Control coefrficient a, b, c can be 0, when one coefficient of any of which is
When zero, it was demonstrated that the corresponding parameter of the coefficient is on restricting element aperture without impact.
Pass when heating, between aperture LA_heat_1 of the second restricting element and outdoor environment temperature T4 and running frequency F
It is that formula is：LA_heat_1=x1·F+y1T4+z1, when aperture LA_heat_1 for calculating is more than the second restricting element of collection
During actual aperture, the aperture increase of the second restricting element is calculated aperture；Otherwise turn down.
When the second detection object includes delivery temperature, delivery temperature TP and outdoor environment temperature T4 and running frequency F it
Between relational expression be：TP_heat=x2·F+y2T4+z2, when the second detection object includes pressure at expulsion, pressure at expulsion P row with
Relational expression between outdoor environment temperature T4 and running frequency F is：P rows _ heat=x3·F+y3T4+z3, when the exhaust for collecting
When temperature or pressure at expulsion are more than the setting delivery temperature or setting pressure at expulsion for calculating, opening for big first throttle element is opened
Degree；Otherwise turn down.Wherein 0≤x1≤ 15,0≤y1≤ 15, -50≤z1≤ 100,0≤x2≤ 25,0≤y2≤ 25, -50≤z2≤
150,0≤x3≤ 25,0≤y3≤ 25, -50≤z3≤150.Control coefrficient x, y, z can be 0, when one coefficient of any of which is
When zero, it was demonstrated that the corresponding parameter of the coefficient is on restricting element aperture without impact.
For example in refrigeration, outdoor environment temperature is detected for 35 DEG C, compressor operating frequency is 58Hz, sets a1=1,
b1=1.6, c1=6；a2=0.5, b2=0.4, c2=31；a3=0.25, b3=0.2, c2=3.9.System first is according to collecting
Frequency and T4 values, the aperture for calculating first throttle element should be 120, adjust the aperture of first throttle element to 120, so
System is according to the frequency and T4 values for using afterwards, calculate corresponding delivery temperature TP_cool of the second restricting element for 74 DEG C or
Person's pressure at expulsion P row _ cool is 2.54MPa, at this moment teases and ridicule whole second according to delivery temperature TP or pressure at expulsion P for detecting
The aperture of restricting element, when the delivery temperature for detecting is more than 74 DEG C (or the pressure at expulsion P row for detecting is more than 2.54Mpa)
When, progressively increase the aperture (can be by 4 step actions of regulation every time) of the second restricting element.Maintain aperture 200s of two restricting elements
Afterwards, detection compressor operating frequency and T4 values again, or the adjustment according to user to air-conditioning, detection compressor operating frequency with
T4 values, readjust to first throttle element and the second restricting element.
According to this adjustment mode, air conditioner Energy Efficiency Ratio equivalent specifications air-conditioner in the market, efficiency are high by 6.5%.
When heating, detect outdoor environment temperature for 7 DEG C when, compressor operating frequency is 72Hz, set x1=2.0, y1=
3.0,z1=22.0；x2=0.5, y2=0.4, z2=30；x3=0.25, y3=0.2, z3=5.System first is according to collecting
Frequency and T4 values, the aperture for calculating the second restricting element should be 187, adjust the aperture of the second restricting element to 187, then
System calculates corresponding delivery temperature TP_heat of first throttle element for 68.8 DEG C, row according to the frequency and T4 values for using
Atmospheric pressure P row _ heat are 2.44MPa.At this moment according to the delivery temperature TP or pressure at expulsion P adjustment first throttle unit for detecting
The aperture of part, when the delivery temperature for detecting is more than 68.8 DEG C (or the pressure at expulsion P row for detecting is more than 2.44Mpa),
The aperture (can be by 4 step actions of regulation every time) of first throttle element is progressively increased, otherwise is gradually reduced opening for first throttle element
Degree.After maintaining aperture 200s of two restricting elements, compressor operating frequency and T4 values is detected again, or according to user to sky
The adjustment of tune, detection compressor operating frequency and T4 values, readjust to first throttle element and the second restricting element.
According to this adjustment mode, air conditioner Energy Efficiency Ratio equivalent specifications air-conditioner in the market, efficiency are high by 6.5%.
Embodiment 3：
In this embodiment, multiple outdoor temperatures are preset interval, the interval corresponding different restricting element of each outdoor temperature
Aperture, the first detection object is outdoor environment temperature T4, according to the outdoor that the actually detected outdoor environment temperature T4 that arrives is located
The corresponding opening value of temperature range adjusts the aperture of one-level restricting element；
Second detection object is outdoor environment temperature T4, running frequency F and pressure at expulsion；Or second detection object be room
External environment temperature T4, running frequency F and delivery temperature, are calculated according to outdoor environment temperature T4 and running frequency F first and set
Determine pressure at expulsion or set delivery temperature, then two-step throttle is adjusted according to actually detected to pressure at expulsion or delivery temperature
The aperture of element is so that detect pressure at expulsion or delivery temperature reaches setting pressure at expulsion or sets delivery temperature.
Specifically, during refrigeration, the concrete condition of the aperture of the interval corresponding first throttle element of different outdoor temperatures is such as
Following table：
| T4 | Aperture |
| 10≤T4 ＜ 20 | 100 |
| 20≤T4 ＜ 30 | 110 |
| 30≤T4 ＜ 40 | 120 |
| 40≤T4 ＜ 50 | 150 |
| 50≤T4 ＜ 60 | 180 |
When the second detection object includes delivery temperature, delivery temperature TP and outdoor environment temperature T4 and running frequency F it
Between relational expression be：TP_cool=a1·F+b1T4+c1, when the second detection object includes pressure at expulsion, pressure at expulsion P row with
Relational expression between outdoor environment temperature T4 and running frequency F is：P rows _ cool=a2·F+b2T4+c2, when the exhaust for collecting
When temperature or pressure at expulsion are more than the setting delivery temperature or setting pressure at expulsion for calculating, opening for big second restricting element is opened
Degree；Otherwise turn down.Wherein 0≤a1≤ 20,0≤b1≤ 20, -50≤c1≤ 100,0≤a2≤ 30,0≤b2≤ 30, -50≤c2≤
150.Control coefrficient a, b, c can be 0, when one coefficient of any of which is zero, it was demonstrated that the corresponding parameter of the coefficient is to throttling
Element aperture is without impact.
When heating, the concrete condition such as following table of the aperture of interval corresponding second restricting element of different outdoor temperatures：
| T4 | Aperture |
| 10≤T4 ＜ 20 | 160 |
| 5≤T4 ＜ 10 | 180 |
| - 5≤T4 ＜ 5 | 200 |
| - 10≤T4 ＜ -5 | 250 |
| - 15≤T4 ＜ -10 | 300 |
When the second detection object includes delivery temperature, delivery temperature TP and outdoor environment temperature T4 and running frequency F it
Between relational expression be：TP_heat=x1·F+y1T4+z1, when the second detection object includes pressure at expulsion, pressure at expulsion P row with
Relational expression between outdoor environment temperature T4 and running frequency F is：P rows _ heat=x2·F+y2T4+z2, when the exhaust for collecting
When temperature or pressure at expulsion are more than the setting delivery temperature or setting pressure at expulsion for calculating, opening for big first throttle element is opened
Degree；Otherwise turn down.Wherein 0≤x1≤ 25,0≤y1≤ 25, -50≤z1≤ 150,0≤x2≤ 25,0≤y2≤ 25, -50≤z2≤
150.Control coefrficient x, y, z can be 0, when one coefficient of any of which is zero, it was demonstrated that the corresponding parameter of the coefficient is to throttling
Element aperture is without impact.
For example, during refrigeration, detection outdoor environment temperature is 35 DEG C, and compressor operating frequency is 58Hz, sets a1=0.5, b1
=0.4, c1=31；a2=0.25, b2=0.2, c2=3.9.System first draws according to outdoor environment temperature T4 is collected
The aperture of one restricting element should be 120, adjust the aperture of first throttle element to 120；Then system is according to frequency and T4 values,
It is 2.54MPa that corresponding delivery temperature TP_cool of the second restricting element is calculated for 74 DEG C or pressure at expulsion P row _ cool, this
When adjust the aperture of the second restricting element according to delivery temperature TP that detects or pressure at expulsion P, such as the row for detecting
When temperature degree is more than 74 DEG C (or the pressure at expulsion P row for detecting is more than 2.54Mpa), opening for the second restricting element is progressively increased
Degree (can be by 4 step actions of regulation every time).Maintain two restricting elements aperture 200s after, again detection compressor operating frequency and
T4 values, or the adjustment according to user to air-conditioning, detection compressor operating frequency and T4 values, to first throttle element and second section
Fluid element is readjusted.
According to this adjustment mode, air conditioner Energy Efficiency Ratio equivalent specifications air-conditioner in the market, efficiency are high by 6.5%.
When heating, outdoor environment temperature is detected for 7 DEG C, compressor operating frequency is 72Hz, sets x1=0.5, y1=
0.4,z1=30；x2=0.25, y2=2, z2=5.System draws second section according to the outdoor environment temperature T4 for collecting first
The aperture of fluid element should be 180, adjust the aperture of the second restricting element to 180；Then system according to the frequency that uses and
T4 values, it is 68.8 DEG C to calculate corresponding delivery temperature TP_heat of first throttle element, and pressure at expulsion P row _ heat is
3.7MPa.At this moment the aperture of first throttle element is adjusted according to delivery temperature TP that detects or pressure at expulsion P, when detecting
Delivery temperature more than 68.8 DEG C (or the pressure at expulsion P row for detecting is more than 3.7Mpa) when, progressively increase first throttle unit
The aperture (can be by 4 step actions of regulation every time) of part, on the contrary it is gradually reduced the aperture of first throttle element.Maintain two restricting elements
Aperture 200s after, detection compressor operating frequency and T4 values, or the adjustment according to user to air-conditioning again, detection compressor
Running frequency and T4 values, readjust to first throttle element and the second restricting element.
According to this adjustment mode, air conditioner Energy Efficiency Ratio equivalent specifications air-conditioner in the market, efficiency are high by 6.5%.
Embodiment 4：
In this embodiment, medium temperature or intermediate pressure are preset, and the first detection object is intermediate pressure or centre
Temperature, according to actually detected to intermediate pressure or medium temperature adjustment one-level restricting element aperture so that detecting
Intermediate pressure or medium temperature reach default intermediate pressure or default medium temperature.
Second detection object is outdoor environment temperature T4, running frequency F and pressure at expulsion；Or second detection object be room
External environment temperature T4, running frequency F and delivery temperature, are calculated according to outdoor environment temperature T4 and running frequency F first and set
Determine pressure at expulsion or set delivery temperature, then two-step throttle is adjusted according to actually detected to pressure at expulsion or delivery temperature
The aperture of element is so that the pressure at expulsion or delivery temperature that detect reach setting pressure at expulsion or set delivery temperature.
Specifically, during refrigeration, the interval of default medium temperature can be 20 DEG C -35 DEG C, default intermediate pressure
Interval can be 0.8MPa-2.0MPa.When detecting intermediate pressure or medium temperature and being less than setting value, big the is opened
The aperture of one restricting element, on the contrary turn down.
When the second detection object includes delivery temperature, delivery temperature TP and outdoor environment temperature T4 and running frequency F it
Between relational expression be：TP_cool=a1·F+b1T4+c1, when the second detection object includes pressure at expulsion, pressure at expulsion P row with
Relational expression between outdoor environment temperature T4 and running frequency F is：P rows _ cool=a2·F+b2T4+c2, when the exhaust for collecting
When temperature or pressure at expulsion are more than the setting delivery temperature or setting pressure at expulsion for calculating, opening for big second restricting element is opened
Degree；Otherwise turn down.Wherein 0≤a1≤ 20,0≤b1≤ 20, -50≤c1≤ 100,0≤a2≤ 30,0≤b2≤ 30, -50≤c2≤
150.Control coefrficient a, b, c can be 0, when one coefficient of any of which is zero, it was demonstrated that the corresponding parameter of the coefficient is to throttling
Element aperture is without impact.
When heating, the interval of default medium temperature can be 20 DEG C -30 DEG C, the value area of default intermediate pressure
Between can be 1.0MPa-2.5MPa.When intermediate pressure is detected or medium temperature is higher than setting value, big second throttling unit is opened
The aperture of part, on the contrary turn down.
When the second detection object includes delivery temperature, delivery temperature TP and outdoor environment temperature T4 and running frequency F it
Between relational expression be：TP_heat=x1·F+y1T4+z1, when the second detection object includes pressure at expulsion, pressure at expulsion P row with
Relational expression between outdoor environment temperature T4 and running frequency F is：P rows _ heat=x2·F+y2T4+z2, when the exhaust for collecting
When temperature or pressure at expulsion are more than the setting delivery temperature or setting pressure at expulsion for calculating, opening for big first throttle element is opened
Degree；Otherwise turn down.Wherein 0≤x1≤ 25,0≤y1≤ 25, -50≤z1≤ 150,0≤x2≤ 25,0≤y2≤ 25, -50≤z2≤
150.Control coefrficient x, y, z can be 0, when one coefficient of any of which is zero, it was demonstrated that the corresponding parameter of the coefficient is to throttling
Element aperture is without impact.
For example when freezing, medium temperature is set as 26 DEG C or set intermediate pressure 1.65MPa, detect outdoor environment temperature
Spend for 35 DEG C, compressor operating frequency is 58Hz, set a1=0.5, b1=0.4, c1=31；a2=0.25, b2=0.2, c2=
3.9.First, system adjusts the aperture of first throttle element according to the medium temperature or intermediate pressure value that collect.Work as collection
To medium temperature more than 26 DEG C or when the intermediate pressure that collects is more than 1.65MPa, progressively turn down first throttle element
Aperture (can be by 4 step actions of regulation every time).Otherwise turn aperture down.Then system calculates the second throttling according to frequency and T4 values
It is 2.54MPa that corresponding delivery temperature TP_cool of element is 74 DEG C or pressure at expulsion P row _ cool, and at this moment basis is detected
Delivery temperature TP or pressure at expulsion P adjust the aperture of the second restricting element, when detecting delivery temperature more than 74 DEG C of (or inspections
The pressure P rows for measuring are more than 2.54Mpa) when, progressively increase the aperture (can be by 4 step actions of regulation every time) of the second restricting element.
After maintaining aperture 200s of two restricting elements, compressor operating frequency and T4 values is detected again, or according to user to air-conditioning
Adjustment, detection compressor operating frequency and T4 values readjusted to first throttle element and the second restricting element.
According to this adjustment mode, air conditioner Energy Efficiency Ratio equivalent specifications air-conditioner in the market, efficiency are high by 6.5%.
When heating, medium temperature is set as 26 DEG C, intermediate pressure 1.6MPa detects outdoor environment temperature for 7 DEG C, compression
Machine running frequency is 72Hz, sets x1=0.5, y1=0.4, z1=30；x2=0.25, y2=2, z2=5.System first is according to adopting
The medium temperature for collecting or intermediate pressure value adjust the aperture of the second restricting element.When the medium temperature for collecting is more than 26 DEG C
Or the intermediate pressure for collecting, when being more than 1.6MPa, the aperture for progressively increasing the second restricting element (can be moved by 4 steps are adjusted every time
Make).Otherwise turn aperture down.Then system calculates the corresponding exhaust of first throttle element according to the frequency and T4 values that detect
Temperature TP_heat is 68.8 DEG C, and pressure at expulsion P row _ heat is 3.7MPa.At this moment according to delivery temperature TP or row for detecting
Atmospheric pressure P adjusts the aperture of first throttle element, when the delivery temperature for detecting is more than 68.8 DEG C of (or exhaust pressures for detecting
Power P row is more than 3.7Mpa) when, the aperture (can be by 4 step actions of regulation every time) of first throttle element is progressively increased, otherwise is gradually subtracted
The aperture of little first throttle element.After maintaining aperture 200s of two restricting elements, compressor operating frequency and T4 is detected again
Value, or the adjustment according to user to air-conditioning, detection compressor operating frequency and T4 values, to first throttle element and the second throttling
Element is readjusted.
According to this adjustment mode, air conditioner Energy Efficiency Ratio equivalent specifications air-conditioner in the market, efficiency are high by 6.5%.
Embodiment 5：
In this embodiment, medium temperature or intermediate pressure are preset, and the first detection object is intermediate pressure or centre
Temperature, according to actually detected to intermediate pressure or medium temperature adjustment one-level restricting element aperture so that detecting
Intermediate pressure or medium temperature reach default intermediate pressure or default medium temperature；
Second detection object is outdoor environment temperature T4 and running frequency F, first according to outdoor environment temperature T4 and operation
Frequency F is calculated the setting aperture of two-step throttle element, then according to the aperture for setting aperture adjustment two-step throttle element.
Specifically, during refrigeration, the interval of default medium temperature can be 20 DEG C -35 DEG C, default intermediate pressure
Interval can be 0.8MPa-1.5MPa.When intermediate pressure is detected or temperature is less than setting value, big first throttle is opened
The aperture of element, on the contrary turn down.
Relational expression between aperture LA_cool_2 of the second restricting element and outdoor environment temperature T4 and running frequency F is：
LA_cool_2=a2·F+b2T4+c2, when aperture LA_cool_2 for calculating is more than the actual aperture of the second restricting element of collection
When, the aperture of the second restricting element is increased to calculating aperture；Otherwise turn down.Wherein, 0≤a2≤ 30,0≤b2≤ 30, -50≤
c2≤ 150, control coefrficient a, b, c can be 0, when one coefficient of any of which is zero, it was demonstrated that the corresponding parameter pair of the coefficient
Restricting element aperture is without impact.
When heating, the interval of default medium temperature can be 20 DEG C -30 DEG C, the value area of default intermediate pressure
Between can be 1.0MPa-2.5MPa.When intermediate pressure is detected or temperature is higher than setting value, big second restricting element is opened
Aperture, on the contrary turn down.
Relational expression between aperture LA_heat_2 of first throttle element and outdoor environment temperature T4 and running frequency F is：
LA_heat_2=x2·F+y2T4+z2, when aperture LA_heat_2 for calculating is more than the actual aperture of the first throttle element of collection
When, the aperture of first throttle element is increased to calculating aperture；Otherwise turn down.Wherein, 0≤x2≤ 25,0≤y2≤ 25, -50
≤z2≤ 150, control coefrficient x, y, z can be 0, when one coefficient of any of which is zero, it was demonstrated that the corresponding parameter of the coefficient
On restricting element aperture without impact.
For example when freezing, medium temperature is set as 26 DEG C or set intermediate pressure 1.65MPa, detect outdoor environment temperature
Spend for 35 DEG C, compressor operating frequency is 58Hz, set a2=1.5, b2=1.6, c2=17.First, system is according to collecting
Medium temperature or intermediate pressure value adjust the aperture of first throttle element.When the medium temperature for collecting more than 26 DEG C or is adopted
When the intermediate pressure for collecting is more than 1.65MPa, the aperture (can be by 4 step actions of regulation every time) of first throttle element is progressively turned down.
Otherwise turn aperture down.Then system is according to detecting outdoor environment temperature and compressor operating frequency calculates the second restricting element
The aperture that sets adjust the aperture of the second restricting element as 160, then to 160.After maintaining aperture 200s of two restricting elements,
Again detection compressor operating frequency and T4 values, or the adjustment according to user to air-conditioning, detection compressor operating frequency and T4
Value, readjusts to first throttle element and the second restricting element.
According to this adjustment mode, air conditioner Energy Efficiency Ratio equivalent specifications air-conditioner in the market, efficiency are high by 6.5%.
When heating, medium temperature is set as 26 DEG C, intermediate pressure 1.6MPa detects outdoor environment temperature for 7 DEG C, compression
Machine running frequency is 72Hz, sets x2=1, y2=3.0, z2=7.0.First system according to the medium temperature for collecting or in
Between pressure value adjust the second restricting element aperture.When the medium temperature for detecting is more than 26 DEG C or the intermediate pressure for detecting
During more than 1.6MPa, the aperture (can be by 4 step actions of regulation every time) of the second restricting element is progressively increased.Otherwise turn aperture down.So
The aperture for calculating first throttle element afterwards is 100, adjusts the aperture of first throttle element to 100.Maintain two throttling units
After aperture 200s of part, compressor operating frequency and T4 values, or the adjustment according to user to air-conditioning, detection compression is detected again
Machine running frequency and T4 values, readjust to first throttle element and the second restricting element.
According to this adjustment mode, air conditioner Energy Efficiency Ratio equivalent specifications air-conditioner in the market, efficiency are high by 6.5%.
Embodiment 6：
In this embodiment, multiple outdoor temperatures are preset interval, the interval corresponding different restricting element of each outdoor temperature
Aperture, the first detection object is outdoor environment temperature T4, according to the outdoor that the actually detected outdoor environment temperature T4 that arrives is located
The corresponding opening value of temperature range adjusts the aperture of one-level restricting element.
Second detection object is outdoor environment temperature T4 and running frequency F, first according to outdoor environment temperature T4 and operation
Frequency F is calculated the setting aperture of two-step throttle element, then according to the aperture for setting aperture adjustment two-step throttle element.
Specifically, during refrigeration, the concrete condition of the aperture of the interval corresponding first throttle element of different outdoor temperatures is such as
Following table：
| T4 | Aperture |
| 10≤T4 ＜ 20 | 100 |
| 20≤T4 ＜ 30 | 110 |
| 30≤T4 ＜ 40 | 120 |
| 40≤T4 ＜ 50 | 150 |
| 50≤T4 ＜ 60 | 180 |
Relational expression between aperture LA_cool_2 of the second restricting element and outdoor environment temperature T4 and running frequency F is：
LA_cool_2=a2·F+b2T4+c2, when aperture LA_cool_2 for calculating is more than the actual aperture of the second restricting element of collection
When, the aperture of the second restricting element is increased to calculating aperture；Otherwise turn down.Wherein, 0≤a2≤ 30,0≤b2≤ 30, -50≤
c2≤ 150, control coefrficient a, b, c can be 0, when one coefficient of any of which is zero, it was demonstrated that the corresponding parameter pair of the coefficient
Restricting element aperture is without impact.
When heating, the concrete condition such as following table of the aperture of interval corresponding second restricting element of different outdoor temperatures：
| T4 | Aperture |
| 10≤T4 ＜ 20 | 160 |
| 5≤T4 ＜ 10 | 180 |
| - 5≤T4 ＜ 5 | 200 |
| - 10≤T4 ＜ -5 | 250 |
| - 15≤T4 ＜ -10 | 300 |
Relational expression between aperture LA_heat_2 of first throttle element and outdoor environment temperature T4 and running frequency F is：
LA_heat_2=x2·F+y2T4+z2, when aperture LA_heat_2 for calculating is more than the actual aperture of the first throttle element of collection
When, the aperture of first throttle element is increased to calculating aperture；Otherwise turn down.Wherein, 0≤x2≤ 25,0≤y2≤ 25, -50≤
z2≤ 150, control coefrficient x, y, z can be 0, when one coefficient of any of which is zero, it was demonstrated that the corresponding parameter pair of the coefficient
Restricting element aperture is without impact.
For example, during refrigeration, outdoor environment temperature is detected for 35 DEG C, compressor operating frequency is 58Hz, sets a2=
1.5,b2=1.6, c2=17.First, system, according to outdoor environment temperature T4 is collected, draws opening for first throttle element first
Degree should be 120, adjust the aperture of first throttle element to 120.Then system is according to detecting outdoor environment temperature and compression
Machine running frequency calculates the aperture that sets of the second restricting element and adjusts the aperture of the second restricting element as 160, then to 160.
After maintaining aperture 200s of two restricting elements, compressor operating frequency and T4 values is detected again, or according to user to air-conditioning
Adjustment, detection compressor operating frequency and T4 values readjusted to first throttle element and the second restricting element.
According to this adjustment mode, air conditioner Energy Efficiency Ratio equivalent specifications air-conditioner in the market, efficiency are high by 6.5%.
When heating, outdoor environment temperature is detected for 7 DEG C, compressor operating frequency is 72Hz, sets x2=1, y2=3.0,
z2=7.0.System first show that the aperture of the second restricting element should be 180, adjusts according to the outdoor environment temperature T4 for collecting
The aperture of whole second restricting element is to 180；Then the aperture for calculating first throttle element is 100, adjustment first throttle unit
The aperture of part is to 100.After maintaining aperture 200s of two restricting elements, compressor operating frequency and T4 values is detected again, or
According to adjustment of the user to air-conditioning, detection compressor operating frequency and T4 values, first throttle element and the second restricting element are entered
Row is readjusted.
According to this adjustment mode, air conditioner Energy Efficiency Ratio equivalent specifications air-conditioner in the market, efficiency are high by 6.5%.
It is understood that the specific example explanation that above-mentioned six embodiments are merely given as, the control of the embodiment of the present invention
Method is not limited to above-mentioned six kinds, for example can be by the tune of the aperture of one-level restricting element and two-step throttle element in six kinds of examples
Section mode carries out random combine；Or the compressor operating frequency in above-described embodiment can also by actually detected to outdoor ring
Border temperature show that for example preset multiple outdoor environment temperatures intervals, multiple outdoor environment temperatures are interval to correspond to different compressors
Running frequency.
Below with reference to the control method that Fig. 1-Fig. 2, Fig. 6 and Fig. 7 describe air-conditioner according to embodiments of the present invention in detail, its
Middle air-conditioner is the heating and air conditioner according to the above embodiment of the present invention.Wherein first throttle element aperture is fixed, second section
Fluid element aperture is adjustable.
The control method of air-conditioner according to embodiments of the present invention, comprises the steps：According to first during refrigerating operaton
The testing result of detection object adjusts the aperture of the second restricting element to setting aperture.According to right to the second detection during heating operation
The testing result of elephant adjusts the aperture of the second restricting element to setting aperture.That is, when freezing and heating, equal acquisition process
The parameter needed for the second restricting element is controlled, then the aperture of the second restricting element of state modulator that basis is obtained is until meet bar
Part.
Wherein the first detection object includes the exhaust temperature of outdoor environment temperature, the running frequency of duplex cylinder compressor, exhaust outlet
Degree, the pressure at expulsion of exhaust outlet, the intermediate pressure of the refrigerant that discharges from gas vent, the centre of the refrigerant that discharges from gas vent
At least one of temperature, gas-liquid separator temperature, pressure of the gas and liquid separator.
Second detection object includes outdoor environment temperature, the running frequency of duplex cylinder compressor, the pressure at expulsion of exhaust outlet, row
The delivery temperature of gas port, from gas vent discharge refrigerant intermediate pressure, from gas vent discharge refrigerant medium temperature,
At least one of gas-liquid separator temperature, pressure of the gas and liquid separator.It is understood that the first detection object and the second detection
Object can be the same or different.Need to illustrate, intermediate pressure and medium temperature can pass through to detect connection gas
Refrigerant in the pipeline of body outlet and the second reservoir draws.
After the aperture of the second restricting element meets condition, can operation the n seconds after, detect again the first detection object or
Second detection object, then adjusts the aperture of the second restricting element, so repeats according to testing result.Certainly repeat condition is not limited
In this, for example, the first detection object or the second detection object can be detected again, then after the operational order for receiving user
According to the aperture that testing result adjusts the second restricting element.In other words, when freezing or heat, in opening for the second restricting element
After degree meets condition, can be in operation n seconds or after the operation signal for receiving user, to the aperture of the second restricting element
Relevant parameter detects judgement again, then adjusts the aperture of the second restricting element according to result of determination, so repeats.
The control method of air-conditioner according to embodiments of the present invention, the aperture that can be very good to control the second restricting element are arrived
Up to default aperture, optimum energy-saving effect is reached.
According to embodiments of the present invention control method, first throttle unit are described in detail by taking six specific embodiments as an example below
Part aperture is fixed, and the second restricting element aperture is adjustable.
Embodiment 7：
In this embodiment, the first detection object and/or the second detection object are outdoor environment temperature T4 and delivery temperature,
Running frequency F is obtained according to the outdoor environment temperature T4 for detecting first, and according to the outdoor environment temperature T4 and fortune for detecting
Line frequency F is calculated setting delivery temperature, then adjusts the aperture of the second restricting element so that the delivery temperature that detects
Reach setting delivery temperature.It is understood that computing formula is located in the electric control element of air-conditioner in advance, computing formula can be with
Specifically limited according to actual conditions.
Specifically, when the first detection object is outdoor environment temperature T4 and delivery temperature, during refrigeration start, detection is outdoor
Environment temperature T4, according to running frequency F that T4 determines compressor, determines according to T4 and F and sets delivery temperature TP, wherein TP=
A1*F+b1+c1*T4, the span of a1, b1, c1 can be corresponding with outdoor environment temperature T4, such as 20 DEG C >=T4：a1
Take -10--10；B1 takes -100--100；C1 takes -10 10；When 20 DEG C of ＜ T4≤30 DEG C：A1 takes -8--8；B1 takes -80--80；
C1 takes -8 8；When 30 DEG C of ＜ T4≤40 DEG C：A1 takes -9--9；B1 takes -90--90；C1 takes -6 6；When 40 DEG C of ＜ T4≤50 DEG C
When：A1 takes -8--8；B1 takes -90--90；C1 takes -5 5；As 50 DEG C of ＜ T4：A1 takes -10--10；B1 takes -100--100；c1
Take -5 5.Of course, it should be understood that the value not limited to this of a1, b1, c1, for example can with outdoor environment temperature T4 without
Close, but set in advance in system.
It should be noted that as one of a1, b1 or while when value is 0, it is believed that join with this in formula above
Number is unrelated, such as a1=0, that is, think unrelated with frequency F.
Then the operation aperture of the second restricting element is adjusted according to TP.Second restricting element is adjusted to stable operation behind position.n
Again detect whether outdoor temperature T4 changes or whether user has operation after second, second section is adjusted according to associated change then
The aperture of fluid element.
For example, start refrigerating operaton, detects T4 temperature for 35 DEG C, inquires about corresponding compressor operating frequency under the T4 and should be
It is that 20, c1 is 0.2 that 90HZ, the interval delivery temperature coefficient a1 of corresponding temperature are 0.6, b1, calculates setting delivery temperature TP=
0.6*90+20+0.2*35=81, according to delivery temperature Tp=81 DEG C is set, adjusts the second restricting element aperture：Under initial opening
The TP for detecting has reached 90 degree, then open big second restricting element, reaches the corresponding second section of setting delivery temperature Tp=81 DEG C
Fluid element aperture, that is to say, that so that the delivery temperature for detecting reaches setting delivery temperature.Second restricting element reaches target
Stable operation after aperture.After the n seconds, detection T4 is not changed in, and continues stable operation.
When the second detection object is outdoor environment temperature T4 and delivery temperature, when heating start, outdoor environment temperature is detected
T4, according to running frequency F that T4 determines compressor, determines according to T4 and F and sets delivery temperature TP, wherein TP=a2*F+b2+
c2*T4；The span of a2, b2, c2 can be corresponding with outdoor environment temperature T4, such as when 5 DEG C of ＜ T4≤15 DEG C：A2 takes-
8--8；B2 takes -80--80；C2 takes -8 8；As 15 DEG C of ＜ T4：A2 takes -9--9；B2 takes -90--90；C2 takes -6 6.Certainly
It is understood that the value not limited to this of a2, b2, c2, for example can be with unrelated with outdoor environment temperature T4, but in system
Set in advance.It should be noted that when a2, b2 one of them or when simultaneously value is 0, it is believed that above in formula with this
Parameter is unrelated, such as a2=0, that is, think unrelated with frequency F.
Then the operation aperture of the second restricting element is adjusted according to TP.Second restricting element is adjusted to stable operation behind position.n
Again detect whether outdoor temperature T4 changes or whether user has operation after second, second section is adjusted according to associated change then
Fluid element aperture.
For example during start heating operation, T4 temperature is detected for 7 DEG C, inquire about corresponding compressor operating frequency under the T4 and should be
It is that 10, c2 is 5 that 75HZ, the interval delivery temperature coefficient a2 of corresponding temperature are 0.4, b2, calculates delivery temperature Tp=0.4*75+
10+5*7=75, according to delivery temperature Tp=75 DEG C is set, adjusts the second restricting element aperture：The Tp detected under initial opening
70 DEG C are reached, has then turned down expansion valve, reached the corresponding second restricting element aperture of setting delivery temperature Tp=75 DEG C, that is,
Say so that the delivery temperature for detecting reaches setting delivery temperature.Second restricting element reaches stable operation after target aperture.The n seconds
Detection T4 is not changed in afterwards, continues stable operation.
Need to illustrate, air-conditioner is when outdoor environment temperature T4 is less than less than 5 DEG C, it is easy to frosting, exhaust
Temperature constantly can change, then can not be adjusted according to delivery temperature in that case.
In this embodiment, the running frequency of compressor is determined by outdoor environment temperature, for example, make a reservation for multiple outdoors
Environment temperature is interval, the interval corresponding respectively multiple compressor operating frequencies of multiple outdoor environment temperatures, inquires about the outdoor for detecting
The outdoor environment temperature that environment temperature is located is interval, you can obtain corresponding compressor operating frequency.Of course, it should be understood that
The running frequency of compressor can also be detected by the detection means for setting on the compressor.
Embodiment 8：
In this embodiment, the first detection object and/or the second detection object are outdoor environment temperature T4 and pressure at expulsion,
Running frequency F is obtained according to the outdoor environment temperature T4 for detecting first, and according to the outdoor environment temperature T4 and fortune for detecting
Line frequency F is calculated setting pressure at expulsion, then adjusts the aperture of the second restricting element so that the pressure at expulsion that detects
Reach setting pressure at expulsion.
Specifically, when the first detection object is outdoor environment temperature T4 and pressure at expulsion, during refrigeration start, detection is outdoor
Environment temperature T4, according to running frequency F that T4 determines compressor, determines according to T4 and F and sets pressure at expulsion Pp；Wherein Pp=
a3*F+b3+c3*T4；The span of a3, b3, c3 can be corresponding with outdoor environment temperature T4, such as 20 DEG C >=T4：a3
Take -5--5；B3 takes -8--8；C3 takes -1 1；When 20 DEG C of ＜ T4≤30 DEG C：A3 takes -5 5；B3 takes -10--10；C3 takes -2
2；When 30 DEG C of ＜ T4≤40 DEG C：A3 takes -5--5；B3 takes -12--12；C3 takes -3 3；When 40 DEG C of ＜ T4≤50 DEG C：A3 takes-
6--6；B3 takes -15--15；C3 takes -4 4；As 50 DEG C of ＜ T4：A3 takes -7--7；B3 takes -20--20；C3 takes -5 5.Certainly
It is understood that the value not limited to this of a3, b3, c3, for example can be with unrelated with outdoor environment temperature T4, but in system
Set in advance.It should be noted that when a3, b3 one of them or when simultaneously value is 0, it is believed that above in formula with this
Parameter is unrelated, such as a3=0, that is, think unrelated with frequency F.
Then the operation aperture of the second restricting element is adjusted according to Pp.Second restricting element is adjusted to stable operation behind position.n
Again detect whether outdoor temperature T4 changes or whether user has operation after second, second section is adjusted according to associated change then
Fluid element aperture.
Such as start refrigerating operaton, detects T4 temperature for 35 DEG C, inquires about corresponding compressor operating frequency under the T4 and should be
It is that 0.7, c3 is 0.02 that 80HZ, the interval pressure at expulsion coefficient a3 of corresponding temperature are 0.02, b3, calculates pressure at expulsion Pp=
0.02*80+0.7+0.02*35=3.0, adjusts the second restricting element aperture according to pressure at expulsion Pp=3.0MPa is set：Initially
Pressure at expulsion Pp is detected under aperture and has reached 2.5MPa, then turn down the second restricting element, reach setting pressure at expulsion Pp=
The corresponding second restricting element apertures of 3.0MPa, that is to say, that so that the pressure at expulsion for detecting reaches setting pressure at expulsion.The
Two restricting elements reach stable operation after target aperture.After the n seconds, detection T4 is not changed in, and continues stable operation.
When the second detection object is outdoor environment temperature T4 and pressure at expulsion, when heating start, outdoor environment temperature is detected
T4, according to running frequency F that T4 determines compressor, determines according to T4 and F and sets pressure at expulsion Pp；Wherein Pp=a4*F+b4+
c4*T4；The span of a4, b4, c4 can be corresponding with outdoor environment temperature T4, such as -15 DEG C >=T4：A4 takes -10--
10；B4 takes -8--8；C4 takes -5 5；When -15 DEG C of ＜ T4≤- 5 DEG C：A4 takes -12 12；B4 takes -10--10；C4 takes -6 6；
When -5 DEG C of ＜ T4≤5 DEG C：A4 takes -15--15；B4 takes -12--12；C4 takes -7 7；When 5 DEG C of ＜ T4≤15 DEG C：A4 takes-
18--18；B4 takes -15--15；C4 takes -8 8；As 15 DEG C of ＜ T4：A4 takes -20--20；B4 takes -18--18；C4 takes -9 9.
Of course, it should be understood that the value not limited to this of a4, b4, c4, for example, can with unrelated with outdoor environment temperature T4, but be
Set in advance in system.It should be noted that when a4, b4 one of them or when simultaneously value is 0, it is believed that above in formula with
The parameter is unrelated, such as a4=0, that is, think unrelated with frequency F.
Then the operation aperture of the second restricting element is adjusted according to Pp.Second restricting element is adjusted to stable operation behind position.n
Again detect whether outdoor temperature T4 changes or whether user has operation after second, second section is adjusted according to associated change then
Fluid element aperture.
In this embodiment, the running frequency of compressor is determined by outdoor environment temperature, for example, make a reservation for multiple outdoors
Environment temperature is interval, the interval corresponding respectively multiple compressor operating frequencies of multiple outdoor environment temperatures, inquires about the outdoor for detecting
The outdoor environment temperature that environment temperature is located is interval, you can obtain corresponding compressor operating frequency.Of course, it should be understood that
The running frequency of compressor can also be detected by the detection means for setting on the compressor.
Embodiment 9：
In this embodiment, the first detection object and/or the second detection object are outdoor environment temperature T4, first according to inspection
The outdoor environment temperature T4 for measuring obtains running frequency F, and is calculated according to the outdoor environment temperature T4 and running frequency F for detecting
The setting aperture of the second restricting element is obtained, and the aperture of the second restricting element is then adjusted to setting aperture.
Specifically, when the first detection object is outdoor environment temperature T4, outdoor environment temperature T4 is detected when refrigeration starts；
Compressor operating frequency F is determined according to T4, according to setting aperture Lr that T4 and F determine the second restricting element；Aperture is wherein set
Lr=a5*F+b5+c5*T4；The span of wherein a5, b5, c5 can be corresponding with outdoor environment temperature T4, for example, preset difference
Outdoor environment temperature interval corresponding different a5, b5, c5 span, then can according to actual conditions limit a5, b5,
The value of c5.
Compare setting aperture Lr of the second restricting element and the difference of the second restricting element initial opening, such as consistent, without
Adjust, such as inconsistent, then it is adjusted to setting aperture Lr.Second restricting element is adjusted to stable operation behind position.N is detected after the second again
Whether outdoor temperature T4 changes or whether user has operation, then adjusts the second restricting element aperture according to associated change.
When the second detection object is outdoor environment temperature T4, when heating beginning, outdoor environment temperature T4 is detected；According to T4
Determine compressor operating frequency F, according to setting aperture Lr that T4 and F determine the second restricting element；Aperture Lr=a6* is wherein set
F+b6+c6*T4；The span of wherein a6, b6, c6 can be corresponding with outdoor environment temperature T4, such as -15 DEG C >=T4：
A6 takes -20--20；B6 takes -200--200；C6 takes -10 10；When -15 DEG C of ＜ T4≤- 5 DEG C：A6 takes -18--18；B6 takes-
180--180；C6 takes -9 9；When -5 DEG C of ＜ T4≤5 DEG C：A6 takes -15--15；B6 takes -150--150；C6 takes -8 8.Certainly may be used
To be understood by, the value not limited to this of a6, b6, c6 for example can be but pre- in system with unrelated with outdoor environment temperature T4
First set.It should be noted that as one of a6, b6 or while when value is 0, it is believed that join with this in formula above
Number is unrelated, such as a6=0, that is, think unrelated with frequency F.
Compare setting aperture Lr of the second restricting element and the difference of the second restricting element initial opening, such as consistent, without
Adjust, such as inconsistent, then it is adjusted to setting aperture Lr.Second restricting element is adjusted to stable operation behind position.N is detected after the second again
Whether outdoor temperature T4 changes or whether user has operation, then adjusts the second restricting element aperture according to associated change.
Such as start heating operation, detects T4 temperature for -7 DEG C, inquires about corresponding compressor operating frequency under the T4 and should be
It is that 80, c6 is 3 that 90HZ, the interval expansion valve opening coefficient a6 of corresponding temperature are 1.2, b6, calculates expansion valve opening Lr=
1.2*90+80+3* (- 7)=167, according to aperture Lr=167 step is set, adjust the second restricting element aperture：Second restricting element
Initial opening Lr is 200 steps, then turn down the second restricting element, reaches setting aperture Lr=167 step.Second restricting element reaches and sets
Determine stable operation after aperture.After the n seconds, detection T4 is not changed in, and continues stable operation.
In this embodiment, the running frequency of compressor is determined by outdoor environment temperature, for example, make a reservation for multiple outdoors
Environment temperature is interval, the interval corresponding respectively multiple compressor operating frequencies of multiple outdoor environment temperatures, inquires about the outdoor for detecting
The outdoor environment temperature that environment temperature is located is interval, you can obtain corresponding compressor operating frequency.Of course, it should be understood that
The running frequency of compressor can also be detected by the detection means for setting on the compressor.
Embodiment 10：
In this embodiment, multiple outdoor temperatures are preset interval, the interval corresponding different gas-liquid separation of each outdoor temperature
The temperature of device, the first detection object and/or the second detection object are the temperature of outdoor environment temperature T4 and gas-liquid separator, first
According to actually detected to outdoor environment temperature T4 obtain the setting temperature of the interval corresponding gas-liquid separator of the outdoor temperature that is located
Degree, then adjust the aperture of the second restricting element until actually detected to the temperature of gas-liquid separator meet design temperature.
Specifically, when the temperature that the first detection object is outdoor environment temperature T4 and gas-liquid separator, refrigeration start fortune
Temperature Ts of detection outdoor environment temperature T4 and gas-liquid separator during row is corresponding according to the outdoor environment temperature T4 inquiries for detecting
The interval corresponding gas-liquid separator of outdoor temperature design temperature, the interval setting temperature with gas-liquid separator of such as outdoor temperature
The corresponding relation of degree can be as follows：As 20 DEG C >=T4：Ts takes 0 30；When 0 DEG C of ＜ T4≤30 DEG C：Ts takes 0 40；When 30 DEG C
During ＜ T4≤40 DEG C：Ts takes 0 50；When 40 DEG C of ＜ T4≤50 DEG C：Ts takes 0 60；As 50 DEG C of ＜ T4：Ts takes 0 65.When
So it is understood that above-mentioned numerical value is exemplary illustration, and the concrete restriction to the present invention is not it.
Then the aperture of the second restricting element is adjusted so that temperature Ts of the gas-liquid separator for detecting meets setting temperature
Degree.
Such as start refrigerating operaton, detects T4 temperature for 35 DEG C, inquires about the interval lower correspondingly gas-liquid separator temperature of the T4
Ts should be 26 DEG C, and temperature Ts for detecting gas-liquid separator under initial opening has reached 20 DEG C, then turn down the second restricting element, reach
Arrive the corresponding second restricting element aperture of Ts=26 DEG C of design temperature, that is to say, that so that the temperature of the gas-liquid separator for detecting
Ts reaches design temperature.Second restricting element reaches stable operation after target aperture.After the n seconds, detection T4 is not changed in, and continues steady
Fixed operation.
When the temperature that the second detection object is outdoor environment temperature T4 and gas-liquid separator, detect when heating start operation
Outdoor environment temperature T4 and temperature Ts of gas-liquid separator, inquire about corresponding outdoor temp according to the outdoor environment temperature T4 for detecting
The design temperature of interval corresponding gas-liquid separator is spent, such as outdoor temperature is interval corresponding with the design temperature of gas-liquid separator
Relation can be as follows：As -15 DEG C >=T4：Ts takes -50 30；When -15 DEG C of ＜ T4≤- 5 DEG C：Ts takes -45 40；When -5 DEG C
During ＜ T4≤5 DEG C：Ts takes -40 50；When 5 DEG C of ＜ T4≤15 DEG C：Ts takes -35 60；As 15 DEG C of ＜ T4：Ts takes -30
65.Of course, it should be understood that above-mentioned numerical value is exemplary illustration, and the concrete restriction to the present invention is not it.
Then the aperture of the second restricting element is adjusted so that temperature Ts of the gas-liquid separator for detecting meets setting temperature
Degree.
Such as start heating operation, detects T4 temperature for 6 DEG C, inquires about interval lower correspondingly gas-liquid separator temperature Ts of the T4
20 DEG C are should be, the Ts detected under initial opening has reached 25 DEG C, then turn down the second restricting element, reach design temperature Ts=20
DEG C corresponding second restricting element aperture, that is to say, that so that temperature Ts of the gas-liquid separator for detecting reaches design temperature.
Second restricting element reaches stable operation after target aperture.After the n seconds, detection T4 is not changed in, and continues stable operation.
Embodiment 11：
In this embodiment, the first detection object and/or the second detection object are outdoor environment temperature T4 and intermediate pressure；
Running frequency F is obtained according to the outdoor environment temperature T4 for detecting first, and according to the outdoor environment temperature T4 and fortune for detecting
Line frequency F is calculated setting intermediate pressure, then adjusts the aperture of the second restricting element so that the intermediate pressure that detects
Reach setting intermediate pressure.
Specifically, it can be Ps to set intermediate pressure Ps and the relational expression between outdoor environment temperature T4 and running frequency F
The span of=a7*F+b7+c7*T4, wherein a7, b7, c7 can be corresponding with outdoor environment temperature T4, for example, preset different
The interval of outdoor environment temperature interval corresponding different a7, b7, c7, then can limit a7, b7, c7 according to actual conditions
Value.It is understood that during refrigeration a7, b7, c7 value and the value of a7, b7, c7 when heating can with identical can also
Different.
For example when heating, T4 temperature is detected for 7 DEG C, inquire about corresponding compressor operating frequency under the T4 and should be 75HZ, right
It is that 0.6, c7 is 0.1 that the pressure coefficient a7 for answering temperature range is 0.01, b7, calculates setting intermediate pressure Ps=0.01*75+
0.6+0.1*7=2.05, according to intermediate pressure Ps=2.05MPa is set, adjusts the second restricting element aperture：Examine under initial opening
Survey intermediate pressure Ps and reached 1.8MPa, then open big second restricting element, reach setting intermediate pressure Ps=2.05MPa corresponding
Second restricting element aperture, that is to say, that the aperture of the second restricting element of adjustment is so that the intermediate pressure that detects reaches and sets
Determine intermediate pressure, the second restricting element reaches stable operation after target aperture.After the n seconds, detection T4 is not changed in, and continues stable fortune
OK.
In this embodiment, the running frequency of compressor is determined by outdoor environment temperature, for example, make a reservation for multiple outdoors
Environment temperature is interval, the interval corresponding respectively multiple compressor operating frequencies of multiple outdoor environment temperatures, inquires about the outdoor for detecting
The outdoor environment temperature that environment temperature is located is interval, you can obtain corresponding compressor operating frequency.Of course, it should be understood that
The running frequency of compressor can also be detected by the detection means for setting on the compressor.
Embodiment 12：
In this embodiment, multiple outdoor temperatures are preset interval, the interval corresponding different gas-liquid separation of each outdoor temperature
The pressure of device, the first detection object and/or the second detection object are the pressure of outdoor environment temperature T4 and gas-liquid separator, first
According to actually detected to outdoor environment temperature T4 obtain the setting pressure of the interval corresponding gas-liquid separator of the outdoor temperature that is located
Power, then adjusts the aperture of the second restricting element until the pressure of the actually detected gas-liquid separator for arriving meets sets pressure.
Specifically, when the pressure that the first detection object is outdoor environment temperature T4 and gas-liquid separator, refrigeration start fortune
The pressure Ps of detection outdoor environment temperature T4 and gas-liquid separator during row, corresponding according to the outdoor environment temperature T4 inquiries for detecting
The interval corresponding gas-liquid separator of outdoor temperature setting pressure, the interval setting pressure with gas-liquid separator of such as outdoor temperature
The corresponding relation of power can be as follows：As 20 DEG C >=T4：Ps takes 0.1 8；When 20 DEG C of ＜ T4≤30 DEG C：Ps takes 0.1 10；
When 30 DEG C of ＜ T4≤40 DEG C：Ps takes 0.1 15；When 40 DEG C of ＜ T4≤50 DEG C：Ps takes 0.1 20；As 50 DEG C of ＜ T4：Ps
Take 0.1 25.Of course, it should be understood that above-mentioned numerical value is exemplary illustration, and the concrete restriction to the present invention is not it.
Then the aperture of the second restricting element is adjusted so that the pressure Ps of the gas-liquid separator for detecting meets setting pressure
Power.
Such as start refrigerating operaton, detects T4 temperature for 50 DEG C, inquires about setting for the interval lower correspondingly gas-liquid separators of the T4
Constant-pressure Ps should be 2.0MPa, and the pressure Ps of the gas-liquid separator detected under initial opening has reached 2.2MPa, then open big
Two restricting elements, reach the corresponding second restricting element apertures of setting pressure Ps=2.2MPa, that is to say, that so that detect
The pressure Ps of gas-liquid separator meets setting pressure.Second restricting element reaches stable operation after target aperture.T4 is detected after the n seconds
It is not changed in, continues stable operation.
When the pressure that the second detection object is outdoor environment temperature T4 and gas-liquid separator, detect when heating start operation
The pressure Ps of outdoor environment temperature T4 and gas-liquid separator, inquires about corresponding outdoor temp according to the outdoor environment temperature T4 for detecting
The setting pressure of interval corresponding gas-liquid separator is spent, such as outdoor temperature is interval corresponding with the setting pressure of gas-liquid separator
Relation can be as follows：As -15 DEG C >=T4：Ps takes 0.1 10；When -15 DEG C of ＜ T4≤- 5 DEG C：Ps takes 0.1 12；When -5 DEG C
During ＜ T4≤5 DEG C：Ps takes 0.1 15；When 5 DEG C of ＜ T4≤15 DEG C：Ps takes 0.1 20；As 15 DEG C of ＜ T4：Ps takes 0.1
25.Of course, it should be understood that above-mentioned numerical value is exemplary illustration, and the concrete restriction to the present invention is not it.
Such as start heating operation, detects T4 temperature for -8 DEG C, inquires about setting for the interval lower correspondingly gas-liquid separators of the T4
Constant-pressure Ps should be 1.2MPa, and the pressure Ps for detecting gas-liquid separator under initial opening has reached 1.3MPa, then turn down second
Restricting element, reaches the corresponding second restricting element apertures of setting pressure Ps=1.2MPa, that is to say, that so that the gas for detecting
The pressure Ps of liquid/gas separator meets setting pressure.Second restricting element reaches stable operation after target aperture.After the n seconds, detection T4 does not have
Change, continue stable operation.
It is understood that illustrating of being merely given as of above-mentioned six specific embodiments, the control of the embodiment of the present invention
Method is not limited to above-mentioned six kinds, for example can be by the regulation side of the aperture of the second restricting element during refrigeration in above-mentioned six kinds of examples
Formula carries out random combine with the regulative mode of the aperture of the second restricting element when heating.Simultaneously it is understood that above-mentioned enforcement
By setup parameters such as calculated setting pressure at expulsion, setting delivery temperature, setting aperture, setting intermediate pressures in example
Can be drawn using other modes, it is interval for example to arrange different outdoor temperatures, multiple outdoor temperatures interval corresponding without
Setup parameter, according to actually detected to the outdoor temperature interval that is located of outdoor environment temperature be obtained and corresponding set ginseng
Number.It will also be appreciated that consult the parameter for obtaining above by outdoor environment temperature can also be by default computing formula
Draw.
Below with reference to the control method that Fig. 1-Fig. 2, Fig. 8 and Fig. 9 describe air-conditioner according to embodiments of the present invention in detail, its
Middle air-conditioner is the heating and air conditioner according to the above embodiment of the present invention, and first throttle element aperture is adjustable, the second throttling unit
Part aperture is fixed.
The control method of air-conditioner according to embodiments of the present invention, comprises the steps：According to first during refrigerating operaton
The aperture of the testing result adjustment first throttle element of detection object is to setting aperture.According to right to the second detection during heating operation
The aperture of the testing result adjustment first throttle element of elephant is to setting aperture.That is, when freezing and heating, equal acquisition process
Parameter needed for control first throttle element, then the aperture of the state modulator first throttle element that basis is obtained is until meet bar
Part.
Wherein the first detection object includes outdoor environment temperature, the running frequency delivery temperature of duplex cylinder compressor, exhaust outlet
Pressure at expulsion, the intermediate pressure of refrigerant that discharges from gas vent, the medium temperature of refrigerant that discharges from gas vent, gas-liquid
At least one of separator temperature, pressure of the gas and liquid separator.
Second detection object includes outdoor environment temperature, the running frequency of duplex cylinder compressor, the pressure at expulsion of exhaust outlet, row
The delivery temperature of gas port, from gas vent discharge refrigerant intermediate pressure, from gas vent discharge refrigerant medium temperature,
At least one of gas-liquid separator temperature, pressure of the gas and liquid separator.It is understood that the first detection object and the second detection
Object can be the same or different.Need to illustrate, intermediate pressure and medium temperature can pass through to detect connection gas
Refrigerant in the pipeline of body outlet and the second reservoir draws.
After the aperture of first throttle element meets condition, can operation the n seconds after, detect again the first detection object or
Second detection object, then adjusts the aperture of first throttle element, so repeats according to testing result.Certainly repeat condition is not limited
In this, for example, the first detection object or the second detection object can be detected again, then after the operational order for receiving user
According to the aperture that testing result adjusts first throttle element.In other words, when freezing or heat, in opening for first throttle element
After degree meets condition, can be in operation n seconds or after the operation signal for receiving user, to the aperture of first throttle element
Relevant parameter detects judgement again, then adjusts the aperture of first throttle element according to result of determination, so repeats.
The control method of air-conditioner according to embodiments of the present invention, the aperture that can be very good to control first throttle element are arrived
Up to default aperture, optimum energy-saving effect is reached.
According to embodiments of the present invention control method, first throttle unit are described in detail by taking six specific embodiments as an example below
Part aperture is adjustable, and the second restricting element aperture is fixed.
Embodiment 13：
In this embodiment, the first detection object and/or the second detection object are outdoor environment temperature T4 and delivery temperature,
Running frequency F is obtained according to the outdoor environment temperature T4 for detecting first, and according to the outdoor environment temperature T4 and fortune for detecting
Line frequency F is calculated setting delivery temperature, and then the aperture of adjustment first throttle element is so that the delivery temperature that detects
Reach setting delivery temperature.It is understood that computing formula is located in the electric control element of air-conditioner in advance, computing formula can be with
Specifically limited according to actual conditions.
Specifically, when the first detection object is outdoor environment temperature T4 and delivery temperature, during refrigeration start, detection is outdoor
Environment temperature T4, according to running frequency F that T4 determines compressor, determines according to T4 and F and sets delivery temperature TP, wherein TP=
A1*F+b1+c1*T4, the span of a1, b1, c1 can be corresponding with outdoor environment temperature T4, such as 20 DEG C >=T4：a1
Take -10--10；B1 takes -100--100；C1 takes -10 10；When 20 DEG C of ＜ T4≤30 DEG C：A1 takes -8--8；B1 takes -80--80；
C1 takes -8 8；When 30 DEG C of ＜ T4≤40 DEG C：A1 takes -9--9；B1 takes -90--90；C1 takes -6 6；When 40 DEG C of ＜ T4≤50 DEG C
When：A1 takes -8--8；B1 takes -90--90；C1 takes -5 5；As 50 DEG C of ＜ T4：A1 takes -10--10；B1 takes -100--100；c1
Take -5 5.Of course, it should be understood that the value not limited to this of a1, b1, c1, for example can with outdoor environment temperature T4 without
Close, but set in advance in system.
It should be noted that as one of a1, b1 or while when value is 0, it is believed that join with this in formula above
Number is unrelated, such as a1=0, that is, think unrelated with frequency F.
Then the operation aperture of first throttle element is adjusted according to TP.The rear stable operation in place of first throttle element regulation.n
Again detect whether outdoor temperature T4 changes or whether user has operation after second, first segment is adjusted according to associated change then
The aperture of fluid element.
For example, start refrigerating operaton, detects T4 temperature for 35 DEG C, inquires about corresponding compressor operating frequency under the T4 and should be
It is that 20, c1 is 0.2 that 90HZ, the interval delivery temperature coefficient a1 of corresponding temperature are 0.6, b1, calculates setting delivery temperature TP=
0.6*90+20+0.2*35=81, according to delivery temperature Tp=81 DEG C is set, adjusts first throttle element aperture：Under initial opening
The TP for detecting has reached 90 degree, then open big first throttle element, reaches the corresponding first segment of setting delivery temperature Tp=81 DEG C
Fluid element aperture, that is to say, that so that the delivery temperature for detecting reaches setting delivery temperature.First throttle element reaches target
Stable operation after aperture.After the n seconds, detection T4 is not changed in, and continues stable operation.
When the second detection object is outdoor environment temperature T4 and delivery temperature, when heating start, outdoor environment temperature is detected
T4, according to running frequency F that T4 determines compressor, determines according to T4 and F and sets delivery temperature TP, wherein TP=a2*F+b2+
c2*T4；The span of a2, b2, c2 can be corresponding with outdoor environment temperature T4, such as when 5 DEG C of ＜ T4≤15 DEG C：A2 takes-
8--8；B2 takes -80--80；C2 takes -8 8；As 15 DEG C of ＜ T4：A2 takes -9--9；B2 takes -90--90；C2 takes -6 6.Certainly
It is understood that the value not limited to this of a2, b2, c2, for example can be with unrelated with outdoor environment temperature T4, but in system
Set in advance.It should be noted that when a2, b2 one of them or when simultaneously value is 0, it is believed that above in formula with this
Parameter is unrelated, such as a2=0, that is, think unrelated with frequency F.
Then the operation aperture of first throttle element is adjusted according to TP.The rear stable operation in place of first throttle element regulation.n
Again detect whether outdoor temperature T4 changes or whether user has operation after second, first segment is adjusted according to associated change then
Fluid element aperture.
For example during start heating operation, T4 temperature is detected for 7 DEG C, inquire about corresponding compressor operating frequency under the T4 and should be
It is that 10, c2 is 5 that 75HZ, the interval delivery temperature coefficient a2 of corresponding temperature are 0.4, b2, calculates delivery temperature Tp=0.4*75+
10+5*7=75, according to delivery temperature Tp=75 DEG C is set, adjusts first throttle element aperture：The Tp detected under initial opening
70 DEG C are reached, has then turned down expansion valve, reached the corresponding first throttle element aperture of setting delivery temperature Tp=75 DEG C, that is,
Say so that the delivery temperature for detecting reaches setting delivery temperature.First throttle element reaches stable operation after target aperture.The n seconds
Detection T4 is not changed in afterwards, continues stable operation.
Need to illustrate, air-conditioner is when outdoor environment temperature T4 is less than less than 5 DEG C, it is easy to frosting, exhaust
Temperature constantly can change, then can not be adjusted according to delivery temperature in that case.
In this embodiment, the running frequency of compressor is determined by outdoor environment temperature, for example, make a reservation for multiple outdoors
Environment temperature is interval, the interval corresponding respectively multiple compressor operating frequencies of multiple outdoor environment temperatures, inquires about the outdoor for detecting
The outdoor environment temperature that environment temperature is located is interval, you can obtain corresponding compressor operating frequency.Of course, it should be understood that
The running frequency of compressor can also be detected by the detection means for setting on the compressor.
Embodiment 14：
In this embodiment, the first detection object and/or the second detection object are outdoor environment temperature T4 and pressure at expulsion,
Running frequency F is obtained according to the outdoor environment temperature T4 for detecting first, and according to the outdoor environment temperature T4 and fortune for detecting
Line frequency F is calculated setting pressure at expulsion, and then the aperture of adjustment first throttle element is so that the pressure at expulsion that detects
Reach setting pressure at expulsion.
Specifically, when the first detection object is outdoor environment temperature T4 and pressure at expulsion, during refrigeration start, detection is outdoor
Environment temperature T4, according to running frequency F that T4 determines compressor, determines according to T4 and F and sets pressure at expulsion Pp；Wherein Pp=
a3*F+b3+c3*T4；The span of a3, b3, c3 can be corresponding with outdoor environment temperature T4, such as 20 DEG C >=T4：a3
Take -5--5；B3 takes -8--8；C3 takes -1 1；When 20 DEG C of ＜ T4≤30 DEG C：A3 takes -5 5；B3 takes -10--10；C3 takes -2
2；When 30 DEG C of ＜ T4≤40 DEG C：A3 takes -5--5；B3 takes -12--12；C3 takes -3 3；When 40 DEG C of ＜ T4≤50 DEG C：A3 takes-
6--6；B3 takes -15--15；C3 takes -4 4；As 50 DEG C of ＜ T4：A3 takes -7--7；B3 takes -20--20；C3 takes -5 5.Certainly
It is understood that the value not limited to this of a3, b3, c3, for example can be with unrelated with outdoor environment temperature T4, but in system
Set in advance.It should be noted that when a3, b3 one of them or when simultaneously value is 0, it is believed that above in formula with this
Parameter is unrelated, such as a3=0, that is, think unrelated with frequency F.
Then the operation aperture of first throttle element is adjusted according to Pp.The rear stable operation in place of first throttle element regulation.n
Again detect whether outdoor temperature T4 changes or whether user has operation after second, first segment is adjusted according to associated change then
Fluid element aperture.
Such as start refrigerating operaton, detects T4 temperature for 35 DEG C, inquires about corresponding compressor operating frequency under the T4 and should be
It is that 0.7, c3 is 0.02 that 80HZ, the interval pressure at expulsion coefficient a3 of corresponding temperature are 0.02, b3, calculates pressure at expulsion Pp=
0.02*80+0.7+0.02*35=3.0, adjusts first throttle element aperture according to pressure at expulsion Pp=3.0MPa is set：Initially
Pressure at expulsion Pp is detected under aperture and has reached 2.5MPa, then turn down first throttle element, reach setting pressure at expulsion Pp=
The corresponding first throttle element apertures of 3.0MPa, that is to say, that so that the pressure at expulsion for detecting reaches setting pressure at expulsion.The
One restricting element reaches stable operation after target aperture, and after the n seconds, detection T4 is not changed in, and continues stable operation.
When the second detection object is outdoor environment temperature T4 and pressure at expulsion, when heating start, outdoor environment temperature is detected
T4, according to running frequency F that T4 determines compressor, determines according to T4 and F and sets pressure at expulsion Pp；Wherein Pp=a4*F+b4+
c4*T4；The span of a4, b4, c4 can be corresponding with outdoor environment temperature T4, such as -15 DEG C >=T4：A4 takes -10--
10；B4 takes -8--8；C4 takes -5 5；When -15 DEG C of ＜ T4≤- 5 DEG C：A4 takes -12 12；B4 takes -10--10；C4 takes -6 6；
When -5 DEG C of ＜ T4≤5 DEG C：A4 takes -15--15；B4 takes -12--12；C4 takes -7 7；When 5 DEG C of ＜ T4≤15 DEG C：A4 takes-
18--18；B4 takes -15--15；C4 takes -8 8；As 15 DEG C of ＜ T4：A4 takes -20--20；B4 takes -18--18；C4 takes -9 9.
Of course, it should be understood that the value not limited to this of a4, b4, c4, for example, can with unrelated with outdoor environment temperature T4, but be
Set in advance in system.It should be noted that when a4, b4 one of them or when simultaneously value is 0, it is believed that above in formula with
The parameter is unrelated, such as a4=0, that is, think unrelated with frequency F.
Then the operation aperture of first throttle element is adjusted according to Pp.The rear stable operation in place of first throttle element regulation.n
Again detect whether outdoor temperature T4 changes or whether user has operation after second, first segment is adjusted according to associated change then
Fluid element aperture.
Such as start heating operation, detects T4 temperature for 7 DEG C, inquires about corresponding compressor operating frequency under the T4 and should be
It is that 0.9, c4 is 0.02 that 75HZ, the interval a4 of corresponding temperature are 0.02, b4, calculates pressure at expulsion Pp=0.02*80+0.9+
0.02*35=3.2, according to pressure at expulsion Pp=3.2MPa is set, adjusts the aperture of first throttle element：Detect under initial opening
To pressure at expulsion Ps reached 3.0MPa, then turn down first throttle element, reach setting pressure at expulsion Ps=3.2MPa corresponding
First throttle element aperture, that is to say, that so that the pressure at expulsion for detecting reaches setting pressure at expulsion.Reach target aperture
Stable operation afterwards.After the n seconds, detection T4 is not changed in, and continues stable operation.
In this embodiment, the running frequency of compressor is determined by outdoor environment temperature, for example, make a reservation for multiple outdoors
Environment temperature is interval, the interval corresponding respectively multiple compressor operating frequencies of multiple outdoor environment temperatures, inquires about the outdoor for detecting
The outdoor environment temperature that environment temperature is located is interval, you can obtain corresponding compressor operating frequency.Of course, it should be understood that
The running frequency of compressor can also be detected by the detection means for setting on the compressor.
Embodiment 15：
In this embodiment, the first detection object and/or the second detection object are outdoor environment temperature T4, first according to inspection
The outdoor environment temperature T4 for measuring obtains running frequency F, and is calculated according to the outdoor environment temperature T4 and running frequency F for detecting
The setting aperture of first throttle element is obtained, then the aperture of adjustment first throttle element is to setting aperture.
Specifically, when the first detection object is outdoor environment temperature T4, outdoor environment temperature T4 is detected when refrigeration starts；
Compressor operating frequency F is determined according to T4, according to setting aperture Lr that T4 and F determine first throttle element；Aperture is wherein set
Lr=a5*F+b5+c5*T4；The span of wherein a5, b5, c5 can be corresponding with outdoor environment temperature T4, for example, preset difference
Outdoor environment temperature interval corresponding different a5, b5, c5 span, then can according to actual conditions limit a5, b5,
The value of c5.
Compare setting aperture Lr of first throttle element and the difference of first throttle element initial opening, such as consistent, without
Adjust, such as inconsistent, then it is adjusted to setting aperture Lr.The rear stable operation in place of first throttle element regulation.N is detected after the second again
Whether outdoor temperature T4 changes or whether user has operation, then adjusts first throttle element aperture according to associated change.
When the second detection object is outdoor environment temperature T4, when heating beginning, outdoor environment temperature T4 is detected；According to T4
Determine compressor operating frequency F, according to setting aperture Lr that T4 and F determine first throttle element；Aperture Lr=a6* is wherein set
F+b6+c6*T4；The span of wherein a6, b6, c6 can be corresponding with outdoor environment temperature T4, such as -15 DEG C >=T4：
A6 takes -20--20；B6 takes -200--200；C6 takes -10 10；When -15 DEG C of ＜ T4≤- 5 DEG C：A6 takes -18--18；B6 takes-
180--180；C6 takes -9 9；When -5 DEG C of ＜ T4≤5 DEG C：A6 takes -15--15；B6 takes -150--150；C6 takes -8 8.Certainly may be used
To be understood by, the value not limited to this of a6, b6, c6 for example can be but pre- in system with unrelated with outdoor environment temperature T4
First set.It should be noted that as one of a6, b6 or while when value is 0, it is believed that join with this in formula above
Number is unrelated, such as a6=0, that is, think unrelated with frequency F.
Compare setting aperture Lr of first throttle element and the difference of first throttle element initial opening, such as consistent, without
Adjust, such as inconsistent, then it is adjusted to setting aperture Lr.The rear stable operation in place of first throttle element regulation.N is detected after the second again
Whether outdoor temperature T4 changes or whether user has operation, then adjusts first throttle element aperture according to associated change.
Such as start heating operation, detects T4 temperature for -7 DEG C, inquires about corresponding compressor operating frequency under the T4 and should be
It is that 80, c6 is 3 that 90HZ, the interval expansion valve opening coefficient a6 of corresponding temperature are 1.2, b6, calculates expansion valve opening Lr=
1.2*90+80+3* (- 7)=167, according to aperture Lr=167 step is set, adjust first throttle element aperture：First throttle element
Initial opening Lr is 200 steps, then turn down first throttle element, reaches setting aperture Lr=167 step.First throttle element reaches and sets
Determine stable operation after aperture.After the n seconds, detection T4 is not changed in, and continues stable operation.
In this embodiment, the running frequency of compressor is determined by outdoor environment temperature, for example, make a reservation for multiple outdoors
Environment temperature is interval, the interval corresponding respectively multiple compressor operating frequencies of multiple outdoor environment temperatures, inquires about the outdoor for detecting
The outdoor environment temperature that environment temperature is located is interval, you can obtain corresponding compressor operating frequency.Of course, it should be understood that
The running frequency of compressor can also be detected by the detection means for setting on the compressor.
Embodiment 16：
In this embodiment, multiple outdoor temperatures are preset interval, the interval corresponding different gas-liquid separation of each outdoor temperature
The temperature of device, the first detection object and/or the second detection object are the temperature of outdoor environment temperature T4 and gas-liquid separator, first
According to actually detected to outdoor environment temperature T4 obtain the setting temperature of the interval corresponding gas-liquid separator of the outdoor temperature that is located
Degree, then the aperture of adjustment first throttle element until actually detected to the temperature of gas-liquid separator meet design temperature.
Specifically, when the temperature that the first detection object is outdoor environment temperature T4 and gas-liquid separator, refrigeration start fortune
Temperature Ts of detection outdoor environment temperature T4 and gas-liquid separator during row is corresponding according to the outdoor environment temperature T4 inquiries for detecting
The interval corresponding gas-liquid separator of outdoor temperature design temperature, the interval setting temperature with gas-liquid separator of such as outdoor temperature
The corresponding relation of degree can be as follows：As 20 DEG C >=T4：Ts takes 0 30；When 0 DEG C of ＜ T4≤30 DEG C：Ts takes 0 40；When 30 DEG C
During ＜ T4≤40 DEG C：Ts takes 0 50；When 40 DEG C of ＜ T4≤50 DEG C：Ts takes 0 60；As 50 DEG C of ＜ T4：Ts takes 0 65.When
So it is understood that above-mentioned numerical value is exemplary illustration, and the concrete restriction to the present invention is not it.
Then the aperture of first throttle element is adjusted so that temperature Ts of the gas-liquid separator for detecting meets setting temperature
Degree.
Such as start refrigerating operaton, detects T4 temperature for 35 DEG C, inquires about the interval lower correspondingly gas-liquid separator temperature of the T4
Ts should be 26 DEG C, and temperature Ts for detecting gas-liquid separator under initial opening has reached 20 DEG C, then open big first throttle element, reach
Arrive the corresponding first throttle element aperture of Ts=26 DEG C of design temperature, that is to say, that so that the temperature of the gas-liquid separator for detecting
Ts reaches design temperature.First throttle element reaches stable operation after target aperture.After the n seconds, detection T4 is not changed in, and continues steady
Fixed operation.
When the temperature that the second detection object is outdoor environment temperature T4 and gas-liquid separator, detect when heating start operation
Outdoor environment temperature T4 and temperature Ts of gas-liquid separator, inquire about corresponding outdoor temp according to the outdoor environment temperature T4 for detecting
The design temperature of interval corresponding gas-liquid separator is spent, such as outdoor temperature is interval corresponding with the design temperature of gas-liquid separator
Relation can be as follows：As -15 DEG C >=T4：Ts takes -50 30；When -15 DEG C of ＜ T4≤- 5 DEG C：Ts takes -45 40；When -5 DEG C
During ＜ T4≤5 DEG C：Ts takes -40 50；When 5 DEG C of ＜ T4≤15 DEG C：Ts takes -35 60；As 15 DEG C of ＜ T4：Ts takes -30
65.Of course, it should be understood that above-mentioned numerical value is exemplary illustration, and the concrete restriction to the present invention is not it.
Then the aperture of first throttle element is adjusted so that temperature Ts of the gas-liquid separator for detecting meets setting temperature
Degree.
Such as start heating operation, detects T4 temperature for 6 DEG C, inquires about interval lower correspondingly gas-liquid separator temperature Ts of the T4
20 DEG C are should be, the Ts detected under initial opening has reached 25 DEG C, then open big first throttle element, reach design temperature Ts=20
DEG C corresponding first throttle element aperture, that is to say, that so that temperature Ts of the gas-liquid separator for detecting reaches design temperature.
First throttle element reaches stable operation after target aperture.After the n seconds, detection T4 is not changed in, and continues stable operation.
Embodiment 17：
In this embodiment, the first detection object and/or the second detection object are outdoor environment temperature T4 and intermediate pressure；
Running frequency F is obtained according to the outdoor environment temperature T4 for detecting first, and according to the outdoor environment temperature T4 and fortune for detecting
Line frequency F is calculated setting intermediate pressure, and then the aperture of adjustment first throttle element is so that the intermediate pressure that detects
Reach setting intermediate pressure.
Specifically, it can be Ps to set intermediate pressure Ps and the relational expression between outdoor environment temperature T4 and running frequency F
The span of=a7*F+b7+c7*T4, wherein a7, b7, c7 can be corresponding with outdoor environment temperature T4, for example, preset different
The interval of outdoor environment temperature interval corresponding different a7, b7, c7, then can limit a7, b7, c7 according to actual conditions
Value.It is understood that during refrigeration a7, b7, c7 value and the value of a7, b7, c7 when heating can with identical can also
Different.
For example when heating, T4 temperature is detected for 7 DEG C, inquire about corresponding compressor operating frequency under the T4 and should be 75HZ, right
It is that 0.6, c7 is 0.1 that the pressure coefficient a7 for answering temperature range is 0.01, b7, calculates setting intermediate pressure Ps=0.01*75+
0.6+0.1*7=2.05, according to intermediate pressure Ps=2.05MPa is set, adjusts first throttle element aperture：Examine under initial opening
Survey intermediate pressure Ps and reached 1.8MPa, then open big first throttle element, reach setting intermediate pressure Ps=2.05MPa corresponding
First throttle element aperture, that is to say, that the aperture of adjustment first throttle element is so that the intermediate pressure that detects reaches and sets
Determine intermediate pressure, first throttle element reaches stable operation after target aperture.After the n seconds, detection T4 is not changed in, and continues stable fortune
OK.
In this embodiment, the running frequency of compressor is determined by outdoor environment temperature, for example, make a reservation for multiple outdoors
Environment temperature is interval, the interval corresponding respectively multiple compressor operating frequencies of multiple outdoor environment temperatures, inquires about the outdoor for detecting
The outdoor environment temperature that environment temperature is located is interval, you can obtain corresponding compressor operating frequency.Of course, it should be understood that
The running frequency of compressor can also be detected by the detection means for setting on the compressor.
Embodiment 18：
In this embodiment, multiple outdoor temperatures are preset interval, the interval corresponding different gas-liquid separation of each outdoor temperature
The pressure of device, the first detection object and/or the second detection object are the pressure of outdoor environment temperature T4 and gas-liquid separator, first
According to actually detected to outdoor environment temperature T4 obtain the setting pressure of the interval corresponding gas-liquid separator of the outdoor temperature that is located
Power, then the aperture of adjustment first throttle element is until the pressure of the actually detected gas-liquid separator for arriving meets setting pressure.
Specifically, when the pressure that the first detection object is outdoor environment temperature T4 and gas-liquid separator, refrigeration start fortune
The pressure Ps of detection outdoor environment temperature T4 and gas-liquid separator during row, corresponding according to the outdoor environment temperature T4 inquiries for detecting
The interval corresponding gas-liquid separator of outdoor temperature setting pressure, the interval setting pressure with gas-liquid separator of such as outdoor temperature
The corresponding relation of power can be as follows：As 20 DEG C >=T4：Ps takes 0.1 8；When 20 DEG C of ＜ T4≤30 DEG C：Ps takes 0.1 10；
When 30 DEG C of ＜ T4≤40 DEG C：Ps takes 0.1 15；When 40 DEG C of ＜ T4≤50 DEG C：Ps takes 0.1 20；As 50 DEG C of ＜ T4：Ps
Take 0.1 25.Of course, it should be understood that above-mentioned numerical value is exemplary illustration, and the concrete restriction to the present invention is not it.
Then the aperture of first throttle element is adjusted so that the pressure Ps of the gas-liquid separator for detecting meets setting pressure
Power.
Such as start refrigerating operaton, detects T4 temperature for 50 DEG C, inquires about setting for the interval lower correspondingly gas-liquid separators of the T4
Constant-pressure Ps should be 2.0MPa, and the pressure Ps of the gas-liquid separator detected under initial opening has reached 2.2MPa, then turn down
One restricting element, reaches the corresponding first throttle element apertures of setting pressure Ps=2.2MPa, that is to say, that so that detect
The pressure Ps of gas-liquid separator meets setting pressure.First throttle element reaches stable operation after target aperture.T4 is detected after the n seconds
It is not changed in, continues stable operation.
When the pressure that the second detection object is outdoor environment temperature T4 and gas-liquid separator, detect when heating start operation
The pressure Ps of outdoor environment temperature T4 and gas-liquid separator, inquires about corresponding outdoor temp according to the outdoor environment temperature T4 for detecting
The setting pressure of interval corresponding gas-liquid separator is spent, such as outdoor temperature is interval corresponding with the setting pressure of gas-liquid separator
Relation can be as follows：As -15 DEG C >=T4：Ps takes 0.1 10；When -15 DEG C of ＜ T4≤- 5 DEG C：Ps takes 0.1 12；When -5 DEG C
During ＜ T4≤5 DEG C：Ps takes 0.1 15；When 5 DEG C of ＜ T4≤15 DEG C：Ps takes 0.1 20；As 15 DEG C of ＜ T4：Ps takes 0.1
25.Of course, it should be understood that above-mentioned numerical value is exemplary illustration, and the concrete restriction to the present invention is not it.
Such as start heating operation, detects T4 temperature for -8 DEG C, inquires about setting for the interval lower correspondingly gas-liquid separators of the T4
Constant-pressure Ps should be 1.2MPa, and the pressure Ps for detecting gas-liquid separator under initial opening has reached 1.3MPa, then open big first
Restricting element, reaches the corresponding first throttle element apertures of setting pressure Ps=1.2MPa, that is to say, that so that the gas for detecting
The pressure Ps of liquid/gas separator meets setting pressure.First throttle element reaches stable operation after target aperture.After the n seconds, detection T4 does not have
Change, continue stable operation.
It is understood that illustrating of being merely given as of above-mentioned six specific embodiments, the control of the embodiment of the present invention
Method is not limited to above-mentioned six kinds, for example can be by the regulation side of the aperture of first throttle element during refrigeration in above-mentioned six kinds of examples
Formula carries out random combine with the regulative mode of the aperture of first throttle element when heating.Simultaneously it is understood that above-mentioned enforcement
By setup parameters such as calculated setting pressure at expulsion, setting delivery temperature, setting aperture, setting intermediate pressures in example
Can be drawn using other modes, it is interval for example to arrange different outdoor temperatures, multiple outdoor temperatures interval corresponding without
Setup parameter, according to actually detected to the outdoor temperature interval that is located of outdoor environment temperature be obtained and corresponding set ginseng
Number.It will also be appreciated that consult the parameter for obtaining above by outdoor environment temperature can also be by default computing formula
Draw.
Below with reference to the control method that Fig. 1-Fig. 2, Figure 10 describe air-conditioner according to embodiments of the present invention in detail, which is hollow
Adjust the aperture that device is the heating and air conditioner according to the above embodiment of the present invention, first throttle element and the second restricting element solid
Fixed.
The control method of air-conditioner according to embodiments of the present invention, comprises the steps：Refrigeration or during heating operation according to
The running frequency of the compressor operation parameters for detecting and/or outdoor environment temperature adjustment duplex cylinder compressor to meeting condition, its
Middle compressor operation parameters include at least one of running current, pressure at expulsion, delivery temperature.In other words, freeze or heat
The running frequency of duplex cylinder compressor is adjusted during operation according to the testing result to detection object, and wherein detection object includes outdoor ring
At least one of border temperature, the delivery temperature of exhaust outlet, the pressure at expulsion of exhaust outlet, running current of duplex cylinder compressor.
When the running frequency of duplex cylinder compressor is adjusted after condition is met, compressor can be detected again after the operation n seconds
Operational factor and/or outdoor environment temperature, then adjust the running frequency of compressor, such as according to the testing result for detecting again
This repetition.Certainly repeat condition not limited to this, for example, can detect compressor fortune after the operational order for receiving user again
Line parameter and/or outdoor environment temperature, then adjust the running frequency of compressor according to the testing result for detecting again.Change speech
It, when freezing or heat, after the running frequency of compressor meets condition, in the operation n seconds or can receive user
Operation signal after, detection compressor operation parameters and/or outdoor environment temperature again, then according to testing result adjustment operation
Frequency, so repeats.
The present invention specific example in, air-conditioner run during, if detect user's shutdown command or
Indoor environment temperature reaches design temperature, and compressor is out of service.
The control method of air-conditioner according to embodiments of the present invention, by pressing according to testing result adjustment in running
The running frequency of contracting machine, such that it is able to let the system operate in suitable parameter area, improves air-conditioner reliability of operation.
In some embodiments of the invention, multiple different delivery temperatures are preset first interval, multiple delivery temperature areas
Between corresponding running frequency regulating command different, then detection delivery temperature the row that is located according to the delivery temperature for detecting
The corresponding regulating command of gas temperature range adjusts running frequency.Wherein regulating command can include frequency reducing, raising frequency, keep frequency,
The instructions such as shutdown, releasing frequency limit.So as to pass through to detect the running frequency that delivery temperature adjusts compressor, can be directly anti-
Answer the running status of system, it is ensured that system operation improves air-conditioner reliability of operation in suitable parameter area, further.
Need to illustrate, the running frequency that releasing frequency limit refers to compressor is unrestricted, need not adjust compressor
Running frequency.
For example air-conditioner start refrigerating operaton, detects delivery temperature TP in running, sets following regulating command：
115 DEG C≤TP, shut down；110℃≤TP<115 DEG C, it is downconverted to TP<110℃；105℃≤TP<110 DEG C, frequency keeps；TP<105
DEG C, release frequency limit.Then corresponding regulating command is executed according to actually detected delivery temperature TP for arriving, after the completion of regulation
Detect TP again, if meeting and adjusting terminate to judge, after the operation n seconds, delivery temperature TP is detected again, repeats to judge.Fortune
While row n second, if detecting user's shutdown command or design temperature reaches, terminate operation.
In some embodiments of the invention, default multiple outdoor temperatures are interval, heat stoppage protection electric current and refrigeration is stopped
Machine protective current, the interval corresponding different limit frequency protective current of multiple outdoor temperatures.Outdoor environment temperature, Ran Hougen are detected first
The outdoor temperature interval being located according to the outdoor environment temperature that detects obtains corresponding limit frequency protective current, adjustment running frequency with
Make actually detected to running current reach corresponding limit frequency protective current, the running current for wherein detecting when cooling is more than
Then directly shut down during refrigeration stoppage protection electric current；The running current detected when heating is more than when heating stoppage protection electric current then
Directly shut down.
Specifically, during refrigeration, the interval corresponding relation with corresponding limit frequency protective current of multiple outdoor temperatures can institute as follows
Show：As 50.5 DEG C of T4 ＞, limit frequency protective current is CL5；As 45.5 DEG C of 49.5 DEG C >=T4 ＞, limit frequency protective current is CL4；
As 41 DEG C of 44.5 DEG C >=T4 ＞, limit frequency protective current is CL3；As 33 DEG C of 40 DEG C >=T4 ＞, limit frequency protective current is CL2；When
32 >=T4 DEG C, limit frequency protective current is CL1.Wherein CL5, CL4, CL3, CL2, CL1 and refrigeration stoppage protection electric current concrete number
Value can be specifically limited according to actual conditions, and here is not limited.
The outdoor environment temperature T4 for for example detecting when refrigerating operaton is located outside 33 DEG C of 40 DEG C >=T4 of temperature range ＞
When interior, then it represents that running current does not allow more than limit frequency protective current CL2, if it does, running current will be downconverted to less than limit
Frequency protective current CL2.
When heating, the interval corresponding relation with corresponding limit frequency protective current of multiple outdoor temperatures can be with as follows：Work as T4
During 15 DEG C of ＞, limit frequency protective current is HL5；When 14 DEG C of ＞ T4 >=10 DEG C, limit frequency protective current is HL4；When 9 DEG C of ＞ T4 >=6
DEG C when, limit frequency protective current is HL3；When 5 DEG C of ＞ T4 >=-19 DEG C, limit frequency protective current is HL2；As -20 DEG C of ＞ T4, limit frequency is protected
Shield electric current is HL1.Wherein HL5, HL4, HL3, HL2, HL1 and heat the concrete numerical value of stoppage protection electric current can be according to actual feelings
Condition is specifically limited, and here is not limited.
For example when the outdoor environment temperature T4 for detecting when heating operation is located outside 9 DEG C of ＞ T4 >=6 DEG C of temperature range,
Then represent that running current does not allow more than limit frequency protective current HL3, if it does, running current will be downconverted to protecting less than limit frequency
Electric current HL3.
In some embodiments of the invention, multiple outdoor temperatures can be preset interval, multiple outdoor temperatures are interval corresponding
Different setting running frequencies, transports according to corresponding setting the in outdoor temperature interval that the actually detected outdoor environment temperature for arriving is located
Line frequency adjusts the running frequency of compressor.
In some embodiments of the invention, multiple different pressures at expulsion are preset first interval, multiple pressure at expulsion areas
Between corresponding running frequency regulating command different, then detection pressure at expulsion the row that is located according to the pressure at expulsion for detecting
The interval corresponding regulating command of atmospheric pressure adjusts running frequency.Wherein regulating command can include frequency reducing, raising frequency, keep frequency,
The instructions such as shutdown, releasing frequency limit.So as to pass through to detect the running frequency that pressure at expulsion adjusts compressor, can be directly anti-
Answer the running status of system, it is ensured that system operation improves air-conditioner reliability of operation in suitable parameter area, further.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be with
It is the first and second feature directly contacts, or the first and second features is by intermediary mediate contact.And, 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 specific features, structure, material or the spy described with reference to the embodiment or example
Point is contained at least one embodiment or example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.And, the specific features of description, structure, material or feature can be with office
Combined in one or more embodiments or example in an appropriate manner.Additionally, in the case of not conflicting, the skill of this area
The feature of the different embodiments or example described in this specification and different embodiments or example can be tied by art personnel
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, changes, replacing and modification.
Claims (14)
1. a kind of heating and air conditioner, it is characterised in that include：
Duplex cylinder compressor, the duplex cylinder compressor include housing, the first cylinder, the second cylinder and the first reservoir, the housing
Exhaust outlet is provided with, first cylinder and second cylinder are respectively provided in the housing, and first reservoir is located at
Outside the housing, the air entry of first cylinder is connected with first reservoir；
Commutation component, the commutation component include the first valve port to the 4th valve port, first valve port and the second valve port and the 3rd
One of connection in valve port, the 4th valve port are connected with another in second valve port and the 3rd valve port,
First valve port is connected with the exhaust outlet, and the 4th valve port is connected with first reservoir；
Outdoor heat exchanger and indoor heat exchanger, the first end of the outdoor heat exchanger are connected with second valve port, the interior
The first end of heat exchanger is connected with the 3rd valve port；
Gas-liquid separator, the gas-liquid separator include gas vent, first interface and second interface, the gas vent and institute
The air entry for stating the second cylinder is connected, and the first interface is connected with the second end of the outdoor heat exchanger, the second interface
It is connected with the second end of the indoor heat exchanger, between the first interface and the outdoor heat exchanger, is in series with first throttle unit
Part, is in series with the second restricting element between the second interface and the indoor heat exchanger；
For the refrigerant radiator radiated by electric control element, the refrigerant radiator tandem is in the outdoor heat exchanger and institute
State between first throttle element；
Check valve, the check valve are connected in parallel with the refrigerant radiator, and the check valve is from the first throttle element
The one-way conduction on the direction of the outdoor heat exchanger.
2. heating and air conditioner according to claim 1, it is characterised in that the first throttle element is electronic expansion
Valve, capillary or choke valve, second restricting element are electric expansion valve, capillary or choke valve.
3. heating and air conditioner according to claim 1, it is characterised in that the gas vent and second cylinder
Magnetic valve is in series between air entry.
4. heating and air conditioner according to claim 1, it is characterised in that the value model of the volume of the gas-liquid separator
Enclose for 100mL-500mL.
5. the heating and air conditioner according to any one of claim 1-4, it is characterised in that the duplex cylinder compressor is also wrapped
Include the second reservoir being located at outside the housing, second reservoir is connected on the gas vent and second cylinder
Between air entry.
6. heating and air conditioner according to claim 5, it is characterised in that the volume of first reservoir is more than described
The volume of the second reservoir.
7. heating and air conditioner according to claim 1, it is characterised in that second cylinder and first cylinder
The span of the ratio of delivery space is 1%～10%.
8. a kind of control method of heating and air conditioner, the heating and air conditioner is according to any one of claim 1-7 institute
The heating and air conditioner that states, it is characterised in that when heating and air conditioner is run, the first throttle element and second throttling
The restricting element for being located at upstream in element is one-level restricting element, the first throttle element and the second restricting element middle position
Restricting element in downstream is two-step throttle element；
When the first throttle element and second restricting element aperture can timing, the control method includes following step
Suddenly：The aperture of the one-level restricting element is adjusted to aperture is set according to the testing result to the first detection object first, then
The aperture of the two-step throttle element is adjusted to aperture is set according to the testing result to the second detection object, the one-level throttles
The setting aperture of element less than the two-step throttle element setting aperture, the testing result of first detection object with described
The testing result of the second detection object is different；
When the one of aperture in the first throttle element and second restricting element is adjustable and another aperture is fixed
When, the control method comprises the steps：In refrigerating operaton according to the testing result adjustment aperture to the first detection object
The aperture of adjustable restricting element is to setting aperture；Open always according to the testing result adjustment to the second detection object during heating operation
The aperture of adjustable restricting element is spent to setting aperture；
When the aperture of the first throttle element and second restricting element is fixed, the control method includes following step
Suddenly：The running frequency that compressor operation parameters and/or outdoor environment temperature according to detecting adjust the duplex cylinder compressor is extremely
Meet condition, wherein described compressor operation parameters include at least one of running current, pressure at expulsion, delivery temperature；
Wherein described first detection object includes the exhaust temperature of outdoor environment temperature, the running frequency of duplex cylinder compressor, exhaust outlet
Degree, the pressure at expulsion of exhaust outlet, from the gas vent discharge refrigerant intermediate pressure, from the gas vent discharge cold
At least one of the medium temperature of matchmaker, gas-liquid separator temperature, pressure of the gas and liquid separator；
Second detection object includes outdoor environment temperature, the running frequency of duplex cylinder compressor, the delivery temperature of exhaust outlet, row
The pressure at expulsion of gas port, the intermediate pressure of the refrigerant that discharges from the gas vent, the refrigerant that discharges from the gas vent
At least one of medium temperature, gas-liquid separator temperature, pressure of the gas and liquid separator.
9. the control method of heating and air conditioner according to claim 8, it is characterised in that first detection object
And/or second detection object is outdoor environment temperature T4, running frequency F and pressure at expulsion；Or be outdoor environment temperature
T4, running frequency F and delivery temperature, are calculated setting according to the outdoor environment temperature T4 and running frequency F first
Pressure at expulsion or set delivery temperature, then according to actually detected to pressure at expulsion or delivery temperature adjustment open accordingly
The aperture of adjustable restricting element is spent so that the pressure at expulsion or delivery temperature that detect reach setting pressure at expulsion or set
Determine delivery temperature.
10. the control method of heating and air conditioner according to claim 8, it is characterised in that preset multiple outdoor temperatures
Interval, the aperture of the interval corresponding different restricting element of each described outdoor temperature,
First detection object and/or the second detection object are outdoor environment temperature T4, according to the actually detected outdoor environment temperature for arriving
The interval corresponding opening value of outdoor temperature that degree T4 is located adjusts the aperture of the adjustable restricting element of corresponding aperture.
The control method of 11. heating and air conditioners according to claim 8, it is characterised in that default medium temperature or
Default intermediate pressure, first detection object and/or the second detection object are intermediate pressure or medium temperature, according to reality
The intermediate pressure for detecting or medium temperature adjust the aperture of the adjustable restricting element of corresponding aperture so that detecting
Intermediate pressure or medium temperature reach default intermediate pressure or default medium temperature.
The control method of 12. heating and air conditioners according to claim 8, it is characterised in that preset multiple outdoor temperatures
Interval, the design temperature of the interval corresponding different gas-liquid separator of each described outdoor temperature, first detection object
And/or the temperature that second detection object is outdoor environment temperature T4 and the gas-liquid separator, first according to actually detected
To outdoor environment temperature T4 obtain the design temperature of the interval corresponding gas-liquid separator of the outdoor temperature that is located, then adjust phase
The aperture of the adjustable restricting element of the aperture answered until actually detected to the temperature of the gas-liquid separator meet the setting
Temperature.
13. the control method of heating and air conditioner according to claim 8, it is characterised in that when first throttle unit
When the aperture of part and second restricting element is fixed, default multiple outdoor temperatures are interval, heat stoppage protection electric current and system
Cold stoppage protection electric current, the interval corresponding different limit frequency protective current of multiple outdoor temperatures, detects outdoor environment temperature, so first
The outdoor temperature interval being located according to the outdoor environment temperature for detecting afterwards obtains corresponding limit frequency protective current, adjusts institute
State running frequency so that actually detected to running current reach accordingly described limit frequency protective current, wherein detect when cooling
To the running current more than described refrigeration stoppage protection electric current when then directly shut down；The operation detected when heating
Electric current more than described heat stoppage protection electric current when then directly shut down.
The control method of 14. heating and air conditioners according to claim 8, it is characterised in that when first throttle unit
When the aperture of part and second restricting element is fixed, multiple different pressures at expulsion intervals, the plurality of exhaust pressure is preset
The regulating command of the interval corresponding running frequency of power is different, the row for detecting pressure at expulsion and being located according to the pressure at expulsion for detecting
The interval corresponding regulating command of atmospheric pressure adjusts the running frequency.
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| CN201610883633.0A CN106500390A (en) | 2016-10-09 | 2016-10-09 | Heating and air conditioner and its control method |
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| WO2021208523A1 (en) * | 2020-04-14 | 2021-10-21 | 青岛海尔空调器有限总公司 | Oil return control method for compressor of air conditioning system in refrigeration mode |
| CN113091235A (en) * | 2020-08-10 | 2021-07-09 | 广州松下空调器有限公司 | Air conditioner control method and device |
| CN113091235B (en) * | 2020-08-10 | 2021-12-28 | 广州松下空调器有限公司 | Air conditioner control method and device |
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