CN105783323B - Heating and air conditioner and its control method - Google Patents
Heating and air conditioner and its control method Download PDFInfo
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- CN105783323B CN105783323B CN201610281559.5A CN201610281559A CN105783323B CN 105783323 B CN105783323 B CN 105783323B CN 201610281559 A CN201610281559 A CN 201610281559A CN 105783323 B CN105783323 B CN 105783323B
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 71
- 238000000034 method Methods 0.000 title claims abstract description 23
- 239000007788 liquid Substances 0.000 claims abstract description 96
- 238000012360 testing method Methods 0.000 claims description 102
- 239000003507 refrigerant Substances 0.000 claims description 36
- 239000012530 fluid Substances 0.000 claims description 11
- 238000011144 upstream manufacturing Methods 0.000 claims description 4
- 238000007689 inspection Methods 0.000 claims description 3
- 238000005057 refrigeration Methods 0.000 description 17
- 238000004378 air conditioning Methods 0.000 description 15
- 238000007906 compression Methods 0.000 description 11
- 239000002826 coolant Substances 0.000 description 10
- 230000006835 compression Effects 0.000 description 9
- 238000001514 detection method Methods 0.000 description 8
- 238000000926 separation method Methods 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000004886 process control Methods 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 235000013616 tea Nutrition 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
- F25B43/006—Accumulators
-
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
- F25B2400/19—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
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/21—Temperatures
- F25B2700/2106—Temperatures of fresh outdoor air
-
- 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
- F25B2700/2109—Temperatures of a separator
-
- 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
-
- 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)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Power Engineering (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a kind of heating and air conditioner and its control methods.Heating and air conditioner includes: duplex cylinder compressor, commutation component, outdoor heat exchanger, indoor heat exchanger and gas-liquid separator, duplex cylinder compressor includes the first cylinder, the second cylinder, the first liquid storage device and the second liquid storage device, the air entry of first cylinder is connected to the first liquid storage device, the air entry of second cylinder is connected to the second liquid storage device, and the value range of the delivery space ratio of the second cylinder and the first cylinder is 1%~10%；The component that commutates includes the first valve port to the 4th valve port, and the 4th valve port is connected with the first liquid storage device；Gas-liquid separator includes gas vent, first interface and second interface, gas vent is connected with the second liquid storage device, it is in series with the adjustable first throttle element of aperture between first interface and outdoor heat exchanger, adjustable second restricting element of aperture is in series between second interface and indoor heat exchanger.Heating and air conditioner according to the present invention, effectively improves energy efficiency of air conditioner.
Description
Technical field
The present invention relates to refrigerating fields, more particularly, to a kind of heating and air conditioner and its control method.
Background technique
Current air-conditioning refrigeration system does not optimize circulation to the gaseous refrigerant after throttling and into before evaporator
Design causes gaseous refrigerant to influence evaporator heat exchange performance, and increases compressor compresses power consumption, to influence air conditioner
Efficiency is horizontal.The heating capacity water of air-conditioning system at low and ultra-low temperatures can be improved in air injection enthalpy-increasing and Two-stage Compression technology
It is flat, but for the cooling condition that air-conditioning is commonly used, efficiency is promoted very limited.
Summary of the invention
The present invention is directed to solve at least some of the technical problems in related technologies.
For this purpose, the present invention proposes a kind of heating and air conditioner, energy efficiency of air conditioner can effectively improve, effectively facilitate energy conservation and subtract
Row.
The present invention also proposes a kind of control method of above-mentioned heating and air conditioner.
Heating and air conditioner according to an embodiment of the present invention, comprising: duplex cylinder compressor, the duplex cylinder compressor include shell
Body, the first cylinder, the second cylinder, the first liquid storage device and the second liquid storage device, the shell are equipped with exhaust outlet, first cylinder
It is respectively provided in the shell with second cylinder, first liquid storage device and second liquid storage device are located at the shell
Outside, the air entry of first cylinder is connected to first liquid storage device, the air entry of second cylinder and second storage
The value range of the delivery space ratio of the connection of liquid device, second cylinder and first cylinder is 1%~10%；Commutation group
Part, the commutation component include the first valve port to the 4th valve port, its in first valve port and the second valve port and third valve port
In a connection, the 4th valve port is connected to another in second valve port and the third valve port, first valve
Mouth is connected with the exhaust outlet, and the 4th valve port is connected with first liquid storage device；Outdoor heat exchanger and indoor heat exchanger, institute
The first end for stating outdoor heat exchanger is connected with second valve port, the first end of the indoor heat exchanger and the third valve port phase
Even；Gas-liquid separator, the gas-liquid separator include gas vent, first interface and second interface, the gas vent and institute
State the second liquid storage device be connected, the first interface is connected with the second end of the outdoor heat exchanger, the second interface with it is described
The second end of indoor heat exchanger is connected, and the adjustable first segment of aperture is in series between the first interface and the outdoor heat exchanger
Fluid element is in series with adjustable second restricting element of aperture between the second interface and the indoor heat exchanger.
Heating and air conditioner according to an embodiment of the present invention can effectively improve sky by the way that above-mentioned duplex cylinder compressor is arranged
Device efficiency is adjusted, energy-saving and emission-reduction are effectively facilitated, while by setting gas-liquid separator, heat exchange efficiency can be improved, reduce compressor
Compression power consumption further increases air conditioner ability and efficiency, further through the second liquid storage device is arranged, can extend duplex cylinder compressor
Service life.
In some embodiments of the invention, the first throttle element is electric expansion valve, second restricting element
For electric expansion valve.
In some embodiments of the invention, solenoid valve is in series between the gas vent and second liquid storage device.
In some embodiments of the invention, the value range of gas-liquid separator volume is 100mL-500mL.
In some embodiments of the invention, the volume of first liquid storage device is greater than the volume of the second liquid storage device.
The control method of heating and air conditioner according to an embodiment of the present invention, heating and air conditioner are above-mentioned according to the present invention
The heating and air conditioner of embodiment, when heating and air conditioner is run, in the first throttle element and second restricting element
Restricting element positioned at upstream is level-one restricting element, is located at downstream in the first throttle element and second restricting element
Restricting element be two-step throttle element, the control method includes the following steps: first according to inspection to the first test object
Survey result adjusts the aperture of the level-one restricting element to aperture is set, then according to the testing result tune to the second test object
The aperture of the whole two-step throttle element is less than the two-step throttle to aperture, the setting aperture of the level-one restricting element is set
The setting aperture of element, the testing result of first test object are different from the testing result of second test object；Its
Described in the first test object include outdoor environment temperature, the running frequency of duplex cylinder compressor, the delivery temperature of exhaust outlet, exhaust
Mouthful pressure at expulsion, from the gas vent be discharged refrigerant intermediate pressure, from the gas vent be discharged refrigerant in
Between at least one of temperature；Second test object includes outdoor environment temperature, the running frequency of duplex cylinder compressor, exhaust
Mouthful delivery temperature, the pressure at expulsion of exhaust outlet, the refrigerant being discharged from the gas vent intermediate pressure, go out from the gas
At least one of the medium temperature of refrigerant of mouth discharge.
The control method of heating and air conditioner according to an embodiment of the present invention, by the aperture for first adjusting level-one restricting element
Then the aperture of two-step throttle element is adjusted again, so that the efficiency of system is optimal.
In some embodiments of the invention, first test object and second test object are outdoor environment
Level-one throttling member is calculated according to the outdoor environment temperature T4 and running frequency F that detect in temperature T4 and running frequency F
Then the setting aperture of part and two-step throttle element adjusts corresponding level-one restricting element and two-step throttle member according to setting aperture
The aperture of part.
In some embodiments of the invention, first test object is outdoor environment temperature T4 and running frequency F, first
The setting aperture of level-one restricting element is first calculated according to the outdoor environment temperature T4 and the running frequency F, then root
The aperture of the level-one restricting element is adjusted according to setting aperture；Second test object is outdoor environment temperature T4, runs frequency
Rate F and pressure at expulsion；Or second test object is outdoor environment temperature T4, running frequency F and delivery temperature, first root
Setting pressure at expulsion or setting delivery temperature is calculated according to the outdoor environment temperature T4 and the running frequency F, then
According to it is actually detected to pressure at expulsion or delivery temperature adjustment two-step throttle element aperture so that the exhaust detected
Pressure or delivery temperature reach setting pressure at expulsion or setting delivery temperature.
In some embodiments of the invention, multiple outdoor temperature sections are preset, each outdoor temperature section is corresponding
The aperture of different restricting elements, the first test object is outdoor environment temperature T4, according to the actually detected outdoor environment temperature arrived
The aperture of the corresponding opening value adjustment level-one restricting element in outdoor temperature section where spending T4；Second test object is room
External environment temperature T4, running frequency F and pressure at expulsion；Or second test object is outdoor environment temperature T4, operation frequency
Rate F and delivery temperature, first according to the outdoor environment temperature T4 and the running frequency F be calculated setting pressure at expulsion or
Person sets delivery temperature, then according to the actually detected pressure at expulsion arrived or the aperture of delivery temperature adjustment two-step throttle element
So that the pressure at expulsion or delivery temperature that detect reach setting pressure at expulsion or setting delivery temperature.
In some embodiments of the invention, medium temperature or default intermediate pressure, first test object are preset
For intermediate pressure, perhaps medium temperature adjusts level-one restricting element according to the actually detected intermediate pressure arrived or medium temperature
Aperture is so that the intermediate pressure or medium temperature that detect reach default intermediate pressure or default medium temperature；Described
Two test objects are outdoor environment temperature T4, running frequency F and pressure at expulsion；Or second test object is outdoor environment
Temperature T4, running frequency F and delivery temperature are calculated according to the outdoor environment temperature T4 and the running frequency F first
Setting pressure at expulsion perhaps sets delivery temperature and then adjusts second level according to the actually detected pressure at expulsion arrived or delivery temperature
The aperture of restricting element is so that the pressure at expulsion or delivery temperature that detect reach setting pressure at expulsion or setting exhaust temperature
Degree.
In some embodiments of the invention, medium temperature or default intermediate pressure, first test object are preset
For intermediate pressure, perhaps medium temperature adjusts level-one restricting element according to the actually detected intermediate pressure arrived or medium temperature
Aperture is so that the intermediate pressure or medium temperature that detect reach default intermediate pressure or default medium temperature；Described
Two test objects are outdoor environment temperature T4 and running frequency F, first according to the outdoor environment temperature T4 and operation frequency
The setting aperture of two-step throttle element is calculated in rate F, and the aperture of the two-step throttle element is then adjusted according to setting aperture.
In some embodiments of the invention, multiple outdoor temperature sections are preset, each outdoor temperature section is corresponding
The aperture of different restricting elements, the first test object is outdoor environment temperature T4, according to the actually detected outdoor environment temperature arrived
The aperture of the corresponding opening value adjustment level-one restricting element in outdoor temperature section where spending T4；Second test object is room
Second level is calculated according to the outdoor environment temperature T4 and the running frequency F first in external environment temperature T4 and running frequency F
Then the setting aperture of restricting element adjusts the aperture of the two-step throttle element according to setting aperture.
Detailed description of the invention
Fig. 1 is the schematic diagram according to the heating and air conditioner of the embodiment of the present invention；
Fig. 2 is the schematic diagram according to the heating and air conditioner equipped with solenoid valve of the embodiment of the present invention；
Fig. 3 is the schematic diagram according to the duplex cylinder compressor of 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；
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.
Appended drawing reference:
Heating and air conditioner 100,
Duplex cylinder compressor 1, shell 10, the first cylinder 11, the second cylinder 12, the first liquid storage device 13, the second liquid storage device 14, row
Port 15,
Commutate component 2, the first valve port D, the second valve port C, third 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,
Solenoid valve 20.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings.Below with reference to
The embodiment of attached drawing description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on the figure or
Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the present invention, the meaning of " plurality " is at least two, such as two, three
It is a etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected or can communicate each other；It can be directly connected, can also indirectly connected through an intermediary, it can be with
It is the interaction relationship of the connection or two elements inside two elements, unless otherwise restricted clearly.For this field
For those of ordinary skill, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
Heating and air conditioner 100 according to an embodiment 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 an embodiment of the present invention, comprising: duplex cylinder compressor 1, commutation
Component 2, outdoor heat exchanger 3 and indoor heat exchanger 4, gas-liquid separator 5, first throttle element 6 and the second restricting element 7.Wherein
Duplex cylinder compressor 1 includes shell 10, the first cylinder 11, the second cylinder 12, the first liquid storage device 13 and the second liquid storage device 14, shell 10
It is equipped with exhaust outlet 15, the first cylinder 11 and the second cylinder 12 are respectively provided in shell 10, the first liquid storage device 13 and the second liquid storage
Device 14 is located at outside shell 10, and the air entry of the first cylinder 11 is connected to the first liquid storage device 13, the air entry of the second cylinder 12 and
The connection of two liquid storage devices 14.That is, the first cylinder 11 and the second cylinder 12 carry out independent compression process, from the first liquid storage device 13
The gas coolant separated, which is drained into the first cylinder 11, to be compressed, the gas coolant separated from the second liquid storage device 14
It is drained into the second cylinder 12 and is compressed, is discharged from the compressed refrigerant of the first cylinder 11 discharge and from the second cylinder 12
Compressed refrigerant is drained into shell 10 respectively and is then discharged from exhaust outlet 15.
The value range of the delivery space ratio of second cylinder 12 and the first cylinder 11 is 1%~10%.Further,
The value range of the delivery space ratio of two cylinders 12 and the first cylinder 11 is 1%~9%, it is preferable that the second cylinder 12 and the
The value range of the delivery space ratio of one cylinder 11 is 4%~9%.Such as second the exhaust of cylinder 12 and the first cylinder 11 hold
Product ratio can be the parameters such as 4%, 5%, 8% or 8.5%.
The component 2 that commutates includes the first valve port D to the 4th valve port S, in the first valve port D and the second valve port C and third valve port E
One of connection, the 4th valve port S are connected to another in the second valve port C and the third valve port E, the first valve port D and row
Port 15 is connected, and the 4th valve port S is connected with the first liquid storage device 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 third valve port E.Specifically, when heating and air conditioner 100 is freezed, the first valve port D and the
Two valve port C are connected to and third valve port E is connected to the 4th valve port S, when heating and air conditioner 100 heats, the first valve port D and third
Valve port E is connected to and the second valve port C is connected to the 4th valve port S.Preferably, commutation component 2 is four-way valve.
Gas-liquid separator 5 includes gas vent m, first interface f and second interface g, gas vent m and the second liquid storage device 14
It is connected, first interface f is connected with the second end of outdoor heat exchanger 3, and second interface g is connected with the second end of indoor heat exchanger 4, the
The adjustable first throttle element 6 of aperture, second interface g and indoor heat exchanger 4 are in series between one interface f and outdoor heat exchanger 3
Between be in series with adjustable second restricting element 7 of aperture.Optionally, first throttle element 6 is electric expansion valve, the second throttling member
Part 7 is electric expansion valve, it is of course possible to which understanding, first throttle element 6 and the second restricting element 7 can also be that other are opened
Spend adjustable element such as heating power expansion valve.
When heating and air conditioner 100 is freezed, the high temperature and pressure refrigerant being discharged from the exhaust outlet 15 of duplex cylinder compressor 1 passes through
First valve port D and the second valve port C are drained into outdoor heat exchanger 3 and carry out condensation heat dissipation, the high pressure liquid being discharged from outdoor heat exchanger 3
State refrigerant is drained into gas-liquid separator 5 from first interface f after the level-one reducing pressure by regulating flow of first throttle element 6 and carries out gas-liquid
Separation, the intermediate pressure gaseous coolant separated are drained into the second liquid storage device 14 from gas vent m and carry out further gas-liquid
Separation, gaseous coolant is drained into the second cylinder 12 from the second liquid storage device 14 and is compressed later.
The intermediate pressure liquid refrigerant being discharged from the second interface g of gas-liquid separator 5 passes through the second level of the second restricting element 7
It is drained into indoor heat exchanger 4 and is exchanged heat to reduce indoor environment temperature after reducing pressure by regulating flow, is discharged from indoor heat exchanger 4 cold
Matchmaker is drained into the first liquid storage device 13 by third valve port E and the 4th valve port S, and the refrigerant being discharged from the first liquid storage device 13 is drained into
It is compressed in first cylinder 11.
When heating and air conditioner 100 heats, the high temperature and pressure refrigerant being discharged from the exhaust outlet 15 of duplex cylinder compressor 1 passes through
First valve port D and third valve port E, which is drained into indoor heat exchanger 4, carries out condensation heat dissipation to increase indoor environment temperature, from interior
The high-pressure liquid refrigerant that heat exchanger 4 is discharged is drained into gas from second interface g after the level-one reducing pressure by regulating flow of the second restricting element 7
Gas-liquid separation is carried out in liquid/gas separator 5, the intermediate pressure gaseous coolant separated is drained into the second liquid storage device from gas vent m
Further gas-liquid separation is carried out in 14, gaseous coolant is drained into the second cylinder 12 from the second liquid storage device 14 and is compressed later.
The intermediate pressure liquid refrigerant being discharged from the first interface f of gas-liquid separator 5 passes through the second level of first throttle element 6
Be drained into outdoor heat exchanger 3 and exchange heat after reducing pressure by regulating flow, the refrigerant being discharged from outdoor heat exchanger 3 by the second valve port C and
4th valve port S is drained into the first liquid storage device 13, and the refrigerant being discharged from the first liquid storage device 13, which is drained into the first cylinder 11, to carry out
Compression.
It follows that the refrigerant of different pressures state has respectively entered the first cylinder when heating and air conditioner 100 is run
11 and second in cylinder 12,12 complete independently compression process of the first cylinder 11 and the second cylinder, the pressure being discharged from the first cylinder 11
Refrigerant after contracting and being discharged to from the compressed refrigerant that the second cylinder 12 is discharged is discharged after mixing in shell 10 from exhaust outlet 15, together
When due to the value range of the second cylinder 12 and the delivery space ratio of the first cylinder 11 be 1%~10%, flow it is less and press
The higher refrigerant of power state, which is drained into lesser second cylinder 12 of delivery space, to be compressed, so as to improve efficiency, section
It can emission reduction.
Simultaneously by being equipped with gas-liquid separator 5 between outdoor heat exchanger 3 and indoor heat exchanger 4, thus gas-liquid separator 5
It is expelled back into the second cylinder 12 and compresses after a part of gaseous coolant is separated, be flowed into room when thus reducing refrigeration
Gas content in the refrigerant of interior heat exchanger 4 and while reducing heating, are flowed into the gas content in the refrigerant of outdoor heat exchanger 3,
Reduce influence of the gaseous coolant to the heat exchange property of indoor heat exchanger 4 or outdoor heat exchanger 3 as evaporator, so as to
To improve heat exchange efficiency, compressor compresses power consumption is reduced.
It is further so as to be carried out to the refrigerant being discharged from gas-liquid separator 5 again due to being provided with the second liquid storage device 14
Gas-liquid separation can further avoid liquid coolant and return in the second cylinder 12, so that it is existing to avoid duplex cylinder compressor 1 that liquid hammer occurs
As improving the service life of duplex cylinder compressor 1.
Heating and air conditioner 100 according to an embodiment of the present invention can be mentioned effectively by the way that above-mentioned duplex cylinder compressor 1 is arranged
High energy efficiency of air conditioner effectively facilitates energy-saving and emission-reduction, while by setting gas-liquid separator 5, heat exchange efficiency can be improved, reduce pressure
Contracting machine compression power consumption, further increases air conditioner ability and efficiency, further through the second liquid storage device 14 of setting, can extend twin-tub pressure
The service life of contracting machine.
As shown in Fig. 2, in some embodiments of the invention, being in series with electricity between gas vent m and the second liquid storage device 14
Magnet valve 20 can be to avoid liquid by closing solenoid valve 20 thus when the liquid coolant in gas-liquid separator 5 exceeds safety levels
State refrigerant enters in the second cylinder 12, so as to avoid duplex cylinder compressor 1 that liquid hammer occurs, extends making for duplex cylinder compressor 1
Use the service life.It is possible to further which liquid level sensor is being arranged on gas-liquid separator 5, pass through the testing result of liquid level sensor
Control the open and-shut mode of solenoid valve 20.
In some embodiments of the invention, the value range of the volume of gas-liquid separator 5 is 100mL-500mL.
In some embodiments of the invention, the volume of the first liquid storage device 13 is greater than the volume of the second liquid storage device 14.To
Under the premise of guaranteeing the decrement of the second cylinder 12, by making the volume of the second liquid storage device 14 smaller, cost can be reduced.
Preferably, the volume of the second liquid storage device 14 is not more than the half of 13 volume of the first liquid storage device.
Heating and air conditioner according to the above embodiment of the present invention (is set rated cooling capacity as 3.5kw, by by inventor
The delivery space ratio of two cylinders and the first cylinder is set as efficiency and existing cold-warm type sky 7.6%) under different operating conditions
It adjusts the efficiency of device to be at the same conditions compared, obtains following data:
It follows that heating and air conditioner according to an embodiment of the present invention is relative to existing cold-warm type compressor, each work
Condition efficiency and whole year efficiency APF are obviously improved.
Inventor is by the cold-warm type air-conditioning of different rated cooling capacities and the embodiment of the present invention of different delivery spaces ratio simultaneously
Device is compared with the heating and air conditioner under existing identical operating condition, and discovery efficiency has promotion, such as inventor by 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 9.2%) compared with the heating and air conditioner under existing identical operating condition, and efficiency improves 7.3%.
The control method of heating and air conditioner according to an embodiment of the present invention is described in detail below with reference to Fig. 1-Fig. 5, wherein
Heating and air conditioner is the heating and air conditioner according to the above embodiment of the present invention.When heating and air conditioner is run, first throttle
Restricting element in element and the second restricting element positioned at upstream is level-one restricting element, first throttle element and the second throttling member
Restricting element in part positioned at downstream is two-step throttle element, and in other words, in refrigeration, first throttle element is level-one throttling member
Part, the second restricting element are two-step throttle element.In heating, the second restricting element is level-one restricting element, first throttle member
Part is two-step throttle element.
Control method according to an embodiment of the present invention includes the following steps: first according to the detection knot to the first test object
Fruit adjusts the aperture of level-one restricting element, then opening according to the testing result adjustment two-step throttle element to the second test object
Degree, the setting aperture of level-one restricting element are less than the setting aperture of two-step throttle element, the testing result of the first test object and
The testing result of second test object is different.It needs to be illustrated, the testing result of the first test object and the second detection
The testing result difference of object refer to level-one restricting element and two-step throttle element cannot simultaneously using same state parameter into
Row adjusts control, in other words, for adjusting the required relevant parameter of level-one restricting element and for adjusting two-step throttle element
Required relevant parameter it is different.
Wherein the first test object includes the exhaust temperature of outdoor environment temperature, the running frequency of duplex cylinder compressor, exhaust outlet
Degree, exhaust outlet pressure at expulsion, from gas vent be discharged refrigerant intermediate pressure, from gas vent be discharged refrigerant centre
At least one of temperature.Second test object includes the row of outdoor environment temperature, the running frequency of duplex cylinder compressor, exhaust outlet
Temperature degree, the pressure at expulsion of exhaust outlet, the intermediate pressure for the refrigerant being discharged from gas vent, the refrigerant that is discharged from gas vent
At least one of medium temperature.
That is, as shown in Figure 4 and Figure 5, no matter freezing or heating, in heating and air conditioner operation, acquire
Then parameter needed for processing control level-one restricting element and two-step throttle element is all first to adjust level-one according to obtained parameter
The aperture of restricting element is until setting aperture, then adjusts the aperture of two-step throttle element until aperture is set, when level-one section again
When fluid element and two-step throttle element are adjusted to setting aperture, the aperture of level-one restricting element is less than opening for two-step throttle element
Degree.Of course, it should be understood that parameter needed for acquisition process control level-one restricting element and acquisition process control two-step throttle
The step of parameter needed for element, can carry out simultaneously or successively carry out.
After the aperture of level-one restricting element and the aperture of two-step throttle element are all satisfied condition, can operation n seconds after,
Again the first test object and the second test object are detected, then adjusts level-one restricting element and two-step throttle according to testing result
The aperture of element so repeats.Certain repeat condition is without being limited thereto, such as can be after receiving the operational order of user, weight
Then the first test object of new detection and the second test object adjust level-one restricting element and two-step throttle member according to testing result
The aperture of part.In other words, in refrigeration or heating, condition is all satisfied in the aperture of level-one restricting element and two-step throttle element
Afterwards, it can run n seconds or after receiving user operation signal, first throttle element and the second restricting element are being opened
The relevant parameter of degree detects judgement again, then according to determining that result adjustment first throttle element and second restricting element open
Degree so repeats.
The control method of heating and air conditioner according to an embodiment of the present invention, by the aperture for first adjusting level-one restricting element
Then the aperture of two-step throttle element is adjusted again, so that the efficiency of system is optimal.
The control method of several specific embodiments according to the present invention is described below.
Embodiment 1:
In this embodiment, the first test object and the second test object are outdoor environment temperature T4 and running frequency F,
The setting of level-one restricting element and two-step throttle element is calculated according to the outdoor environment temperature T4 and running frequency F that detect
Then aperture adjusts the aperture of corresponding level-one restricting element and two-step throttle element according to setting aperture.
It is understood that calculation formula is located in advance in the electric control element of heating and air conditioner, calculation formula can root
It is specifically limited according to actual conditions.
Specifically, when refrigeration, the aperture LA_cool_1 and outdoor environment temperature T4 and running frequency F of first throttle element
Between relational expression are as follows: LA_cool_1=a1·F+b1T4+c1, when the aperture LA_cool_1 of calculating is greater than the first segment of acquisition
When the practical aperture of fluid element, the aperture of first throttle element is increased into calculating aperture；Otherwise it turns down.
Relational expression between the aperture LA_cool_2 and outdoor environment temperature T4 and running frequency F of second restricting element are as follows:
LA_cool_2=a2·F+b2T4+c2, when the aperture LA_cool_2 of calculating is greater than the practical aperture of the second restricting element of acquisition
When, the aperture of the second restricting element is increased into calculating aperture；Otherwise it turns 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 any one is
When number is zero, it was demonstrated that the corresponding parameter of the coefficient is on restricting element aperture without influence.
Pass when heating, between the aperture LA_heat_1 and outdoor environment temperature T4 and running frequency F of the second restricting element
It is formula are as follows: LA_heat_1=x1·F+y1T4+z1, when the aperture LA_heat_1 of calculating is greater than the second restricting element of acquisition
When practical aperture, the aperture of the second restricting element is increased into calculating aperture；Otherwise it turns down.
Relational expression between the aperture LA_heat_2 and outdoor environment temperature T4 and running frequency F of first throttle element are as follows:
LA_heat_2=x2·F+y2T4+z2, when the aperture LA_heat_2 of calculating is greater than the practical aperture of the first throttle element of acquisition
When, the aperture of first throttle element is increased into calculating aperture；Otherwise it turns 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, when any one is
When number is zero, it was demonstrated that the corresponding parameter of the coefficient is on restricting element aperture without influence.
Such as in refrigeration, detects that outdoor environment temperature is 35 DEG C, compressor operating frequency 58Hz, set a1=1,
b1=1.6, c1=6；a2=1.5, b2=1.6, c2=17.System calculates first according to collected frequency and T4 value 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 the aperture 200s for maintaining two restricting elements, detection is pressed again
Contracting machine running frequency and T4 value；Or the adjustment according to user to air-conditioning, compressor operating frequency and T4 value are detected, to first segment
Fluid element and the second restricting element are readjusted.
According to this adjustment mode, equivalent specifications air conditioner, efficiency are high by 6.5% currently on the market for air conditioner Energy Efficiency Ratio.
In heating, detects that outdoor environment temperature is 7 DEG C, compressor operating frequency 72Hz, set x1=2.0, y1=
3.0,z1=22.0；x2=1, y2=3.0, z2=7.0.System calculates the second section according to collected frequency and T4 value 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
Degree is 100, adjusts the aperture of first throttle element to 100.After the aperture 200s for maintaining two restricting elements, detection compression again
Machine running frequency and T4 value, or the adjustment according to user to air-conditioning detect compressor operating frequency and T4 value, to first throttle
Element and the second restricting element are readjusted.
According to this adjustment mode, equivalent specifications air conditioner, efficiency are high by 6.5% currently on the market for air conditioner Energy Efficiency Ratio.
Embodiment 2:
In this embodiment, the first test object is outdoor environment temperature T4 and running frequency F, first according to outdoor environment
The setting aperture of level-one restricting element is calculated in temperature T4 and running frequency F, then according to setting aperture adjustment level-one throttling
The aperture of element；
Second test object is outdoor environment temperature T4, running frequency F and pressure at expulsion；Or second test object be room
External environment temperature T4, running frequency F and delivery temperature, are calculated and set according to outdoor environment temperature T4 and running frequency F first
Determine pressure at expulsion and perhaps sets delivery temperature then according to the actually detected pressure at expulsion arrived or delivery temperature adjustment second level section
The aperture of fluid element is so that the pressure at expulsion or delivery temperature that detect reach setting pressure at expulsion or setting exhaust temperature
Degree.
Specifically, when refrigeration, the aperture LA_cool_1 and outdoor environment temperature T4 and running frequency F of first throttle element
Between relational expression are as follows: LA_cool_1=a1·F+b1T4+c1, when the aperture LA_cool_1 of calculating is greater than the first segment of acquisition
When the practical aperture of fluid element, the aperture of first throttle element is increased into calculating aperture；Otherwise it turns down.
When the second test object includes delivery temperature, delivery temperature TP and outdoor environment temperature T4 and running frequency F it
Between relational expression are as follows: TP_cool=a2·F+b2T4+c2, when the second test object includes pressure at expulsion, pressure at expulsion P row with
Relational expression between outdoor environment temperature T4 and running frequency F are as follows: P row _ cool=a3·F+b3T4+c3, when collected exhaust
When temperature or pressure at expulsion are greater than the setting delivery temperature calculated or setting pressure at expulsion, opening for big second restricting element is opened
Degree；Otherwise it turns 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 any one coefficient is
When zero, it was demonstrated that the corresponding parameter of the coefficient is on restricting element aperture without influence.
Pass when heating, between the aperture LA_heat_1 and outdoor environment temperature T4 and running frequency F of the second restricting element
It is formula are as follows: LA_heat_1=x1·F+y1T4+z1, when the aperture LA_heat_1 of calculating is greater than the second restricting element of acquisition
When practical aperture, the aperture increase of the second restricting element is calculated into aperture；Otherwise it turns down.
When the second test object includes delivery temperature, delivery temperature TP and outdoor environment temperature T4 and running frequency F it
Between relational expression are as follows: TP_heat=x2·F+y2T4+z2, when the second test object includes pressure at expulsion, pressure at expulsion P row with
Relational expression between outdoor environment temperature T4 and running frequency F are as follows: P row _ heat=x3·F+y3T4+z3, when collected exhaust
When temperature or pressure at expulsion are greater than the setting delivery temperature calculated or setting pressure at expulsion, opening for big first throttle element is opened
Degree；Otherwise it turns 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 any one coefficient is
When zero, it was demonstrated that the corresponding parameter of the coefficient is on restricting element aperture without influence.
Such as in refrigeration, detects that outdoor environment temperature is 35 DEG C, compressor operating frequency 58Hz, set 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 value, the aperture for calculating first throttle element for 120, should adjust the aperture of first throttle element to 120, so
System is according to the frequency and T4 value used afterwards, calculate the corresponding delivery temperature TP_cool of the second restricting element be 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 the delivery temperature TP or pressure at expulsion P that detect
The aperture of restricting element, when the delivery temperature detected is greater than 74 DEG C (or the pressure at expulsion P row detected is greater than 2.54Mpa)
When, gradually increase the aperture (movement of 4 steps can be adjusted by each) of the second restricting element.Maintain the aperture 200s of two restricting elements
Afterwards, detect compressor operating frequency and T4 value, or the adjustment according to user to air-conditioning again, detection compressor operating frequency and
T4 value readjusts first throttle element and the second restricting element.
According to this adjustment mode, equivalent specifications air conditioner, efficiency are high by 6.5% currently on the market for air conditioner Energy Efficiency Ratio.
When heating, when detecting that outdoor environment temperature is 7 DEG C, compressor operating frequency 72Hz sets 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 is according to collected first
Frequency and T4 value, the aperture for calculating the second restricting element should be 187, adjust the aperture of the second restricting element to 187, then
System is according to the frequency and T4 value used, and calculating the corresponding delivery temperature TP_heat of first throttle element is 68.8 DEG C, row
Atmospheric pressure P row _ heat is 2.44MPa.At this moment according to delivery temperature TP or pressure at expulsion P the adjustment first throttle member detected
The aperture of part, when the delivery temperature detected is greater than 68.8 DEG C (or the pressure at expulsion P row detected is greater than 2.44Mpa),
The aperture (movement of 4 steps can be adjusted by each) of first throttle element is gradually increased, otherwise is gradually reduced opening for first throttle element
Degree.After the aperture 200s for maintaining two restricting elements, compressor operating frequency and T4 value are detected again, or according to user to sky
The adjustment of tune detects compressor operating frequency and T4 value, readjusts to first throttle element and the second restricting element.
According to this adjustment mode, equivalent specifications air conditioner, efficiency are high by 6.5% currently on the market for air conditioner Energy Efficiency Ratio.
Embodiment 3:
In this embodiment, multiple outdoor temperature sections are preset, each outdoor temperature section corresponds to different restricting elements
Aperture, the first test object be outdoor environment temperature T4, the outdoor where the actually detected outdoor environment temperature T4 arrived
The aperture of the corresponding opening value adjustment level-one restricting element of temperature range；
Second test object is outdoor environment temperature T4, running frequency F and pressure at expulsion；Or second test object be room
External environment temperature T4, running frequency F and delivery temperature, are calculated and set according to outdoor environment temperature T4 and running frequency F first
Determine pressure at expulsion and perhaps set delivery temperature and adjust two-step throttle to pressure at expulsion or delivery temperature according to actually detected
The aperture of element is so that detect that pressure at expulsion or delivery temperature reach setting pressure at expulsion or setting delivery temperature.
Specifically, when refrigeration, the concrete condition of the aperture of the corresponding first throttle element in different outdoor temperature sections 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 test object includes delivery temperature, delivery temperature TP and outdoor environment temperature T4 and running frequency F it
Between relational expression are as follows: TP_cool=a1·F+b1T4+c1, when the second test object includes pressure at expulsion, pressure at expulsion P row with
Relational expression between outdoor environment temperature T4 and running frequency F are as follows: P row _ cool=a2·F+b2T4+c2, when collected exhaust
When temperature or pressure at expulsion are greater than the setting delivery temperature calculated or setting pressure at expulsion, opening for big second restricting element is opened
Degree；Otherwise it turns 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 any one coefficient is zero, it was demonstrated that the corresponding parameter of the coefficient is to throttling
Element aperture is without influence.
When heating, the concrete condition of the aperture of corresponding second restricting element in different outdoor temperature sections is as follows:
| 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 test object includes delivery temperature, delivery temperature TP and outdoor environment temperature T4 and running frequency F it
Between relational expression are as follows: TP_heat=x1·F+y1T4+z1, when the second test object includes pressure at expulsion, pressure at expulsion P row with
Relational expression between outdoor environment temperature T4 and running frequency F are as follows: P row _ heat=x2·F+y2T4+z2, when collected exhaust
When temperature or pressure at expulsion are greater than the setting delivery temperature calculated or setting pressure at expulsion, opening for big first throttle element is opened
Degree；Otherwise it turns 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 any one coefficient is zero, it was demonstrated that the corresponding parameter of the coefficient is to throttling
Element aperture is without influence.
For example, detection outdoor environment temperature is 35 DEG C, compressor operating frequency 58Hz when refrigeration, a is set1=0.5, b1
=0.4, c1=31；a2=0.25, b2=0.2, c2=3.9.System first obtains 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 value,
Calculate that the corresponding delivery temperature TP_cool of the second restricting element is 74 DEG C or pressure at expulsion P row _ cool is 2.54MPa, this
When the aperture of the second restricting element is adjusted according to the delivery temperature TP or pressure at expulsion P that detect, such as the row detected
When temperature degree is greater than 74 DEG C (or the pressure at expulsion P row detected is greater than 2.54Mpa), opening for the second restricting element is gradually increased
Degree (can adjust the movement of 4 steps by each).After the aperture 200s for maintaining two restricting elements, again detect compressor operating frequency and
T4 value, or the adjustment according to user to air-conditioning detect compressor operating frequency and T4 value, to first throttle element and the second section
Fluid element is readjusted.
According to this adjustment mode, equivalent specifications air conditioner, efficiency are high by 6.5% currently on the market for air conditioner Energy Efficiency Ratio.
When heating, detects that outdoor environment temperature is 7 DEG C, compressor operating frequency 72Hz, set x1=0.5, y1=
0.4,z1=30；x2=0.25, y2=2, z2=5.System obtains the second section according to collected outdoor environment temperature T4 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 value, calculating the corresponding delivery temperature TP_heat of first throttle element is 68.8 DEG C, and pressure at expulsion P row _ heat is
3.7MPa.At this moment according to the aperture of the delivery temperature TP that detects or pressure at expulsion P adjustment first throttle element, when detecting
Delivery temperature be greater than 68.8 DEG C (or detect pressure at expulsion P row be greater than 3.7Mpa) when, gradually increase first throttle member
The aperture (movement of 4 steps can be adjusted by each) of part, on the contrary it is gradually reduced the aperture of first throttle element.Maintain two restricting elements
Aperture 200s after, detect compressor operating frequency and T4 value, or the adjustment according to user to air-conditioning again, detect compressor
Running frequency and T4 value, readjust first throttle element and the second restricting element.
According to this adjustment mode, equivalent specifications air conditioner, efficiency are high by 6.5% currently on the market for air conditioner Energy Efficiency Ratio.
Embodiment 4:
In this embodiment, presetting medium temperature, perhaps the first test object of intermediate pressure is intermediate pressure or centre
Temperature, according to it is actually detected to intermediate pressure or medium temperature adjustment level-one restricting element aperture so that detecting
Intermediate pressure or medium temperature reach default intermediate pressure or default medium temperature.
Second test object is outdoor environment temperature T4, running frequency F and pressure at expulsion；Or second test object be room
External environment temperature T4, running frequency F and delivery temperature, are calculated and set according to outdoor environment temperature T4 and running frequency F first
Determine pressure at expulsion and perhaps set delivery temperature and adjust two-step throttle to pressure at expulsion or delivery temperature according to actually detected
The aperture of element is so that the pressure at expulsion or delivery temperature that detect reach setting pressure at expulsion or setting delivery temperature.
Specifically, when refrigeration, the value interval of preset medium temperature can be 20 DEG C -35 DEG C, preset intermediate pressure
Value interval can be 0.8MPa-2.0MPa.When detecting intermediate pressure or medium temperature lower than setting value, open big by the
The aperture of one restricting element, on the contrary it turns down.
When the second test object includes delivery temperature, delivery temperature TP and outdoor environment temperature T4 and running frequency F it
Between relational expression are as follows: TP_cool=a1·F+b1T4+c1, when the second test object includes pressure at expulsion, pressure at expulsion P row with
Relational expression between outdoor environment temperature T4 and running frequency F are as follows: P row _ cool=a2·F+b2T4+c2, when collected exhaust
When temperature or pressure at expulsion are greater than the setting delivery temperature calculated or setting pressure at expulsion, opening for big second restricting element is opened
Degree；Otherwise it turns 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 any one coefficient is zero, it was demonstrated that the corresponding parameter of the coefficient is to throttling
Element aperture is without influence.
When heating, the value interval of preset medium temperature can be 20 DEG C -30 DEG C, the value area of preset intermediate pressure
Between can be 1.0MPa-2.5MPa.When detecting that intermediate pressure or medium temperature are higher than setting value, big second throttling member is opened
The aperture of part, on the contrary it turns down.
When the second test object includes delivery temperature, delivery temperature TP and outdoor environment temperature T4 and running frequency F it
Between relational expression are as follows: TP_heat=x1·F+y1T4+z1, when the second test object includes pressure at expulsion, pressure at expulsion P row with
Relational expression between outdoor environment temperature T4 and running frequency F are as follows: P row _ heat=x2·F+y2T4+z2, when collected exhaust
When temperature or pressure at expulsion are greater than the setting delivery temperature calculated or setting pressure at expulsion, opening for big first throttle element is opened
Degree；Otherwise it turns 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 any one coefficient is zero, it was demonstrated that the corresponding parameter of the coefficient is to throttling
Element aperture is without influence.
Such as when refrigeration, medium temperature is set as 26 DEG C or sets intermediate pressure 1.65MPa, detects outdoor environment temperature
Degree is 35 DEG C, compressor operating frequency 58Hz, sets a1=0.5, b1=0.4, c1=31；a2=0.25, b2=0.2, c2=
3.9.Firstly, system is according to collected medium temperature or the aperture of intermediate pressure value adjustment first throttle element.Work as acquisition
The medium temperature arrived gradually turns down first throttle element greater than 26 DEG C or when collected intermediate pressure is greater than 1.65MPa
Aperture (can adjust the movement of 4 steps by each).Otherwise turn aperture down.Then system calculates the second throttling according to frequency and T4 value
The corresponding delivery temperature TP_cool of element is 74 DEG C or pressure at expulsion P row _ cool is 2.54MPa, and at this moment basis detects
Delivery temperature TP perhaps pressure at expulsion P adjust the second restricting element aperture when detect delivery temperature be greater than 74 DEG C (or inspection
The pressure P row measured is greater than 2.54Mpa) when, gradually increase the aperture (movement of 4 steps can be adjusted by each) of the second restricting element.
After the aperture 200s for maintaining two restricting elements, compressor operating frequency and T4 value are detected again, or according to user to air-conditioning
Adjustment, detect compressor operating frequency and T4 value, first throttle element and the second restricting element readjusted.
According to this adjustment mode, equivalent specifications air conditioner, efficiency are high by 6.5% currently on the market for air conditioner Energy Efficiency Ratio.
When heating, medium temperature is set as 26 DEG C, intermediate pressure 1.6MPa, detects that outdoor environment temperature is 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 or intermediate pressure value collected adjusts the aperture of the second restricting element.When collected medium temperature is greater than 26 DEG C
Or collected intermediate pressure is when being greater than 1.6MPa, gradually increase the second restricting element aperture (can by each to adjust 4 steps dynamic
Make).Otherwise turn aperture down.Then system calculates the corresponding exhaust of first throttle element according to the frequency and T4 value 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 the delivery temperature TP or row detected
Atmospheric pressure P adjusts the aperture of first throttle element, when the delivery temperature detected is greater than 68.8 DEG C of (or exhaust pressures detected
Power P row is greater than 3.7Mpa) when, the aperture (movement of 4 steps can be adjusted by each) of first throttle element is gradually increased, otherwise is gradually subtracted
The aperture of small first throttle element.After the aperture 200s for maintaining two restricting elements, compressor operating frequency and T4 are detected again
Value, or the adjustment according to user to air-conditioning detect compressor operating frequency and T4 value, throttle to first throttle element and second
Element is readjusted.
According to this adjustment mode, equivalent specifications air conditioner, efficiency are high by 6.5% currently on the market for air conditioner Energy Efficiency Ratio.
Embodiment 5:
In this embodiment, presetting medium temperature, perhaps the first test object of intermediate pressure is intermediate pressure or centre
Temperature, according to it is actually detected to intermediate pressure or medium temperature adjustment level-one restricting element aperture so that detecting
Intermediate pressure or medium temperature reach default intermediate pressure or default medium temperature；
Second test object is outdoor environment temperature T4 and running frequency F, first according to outdoor environment temperature T4 and operation
The setting aperture of two-step throttle element is calculated in frequency F, then according to the aperture of setting aperture adjustment two-step throttle element.
Specifically, the value interval of preset medium temperature can be 20 DEG C -35 DEG C when refrigeration, preset intermediate pressure
Value interval can be 0.8MPa-1.5MPa.When detecting intermediate pressure or temperature lower than setting value, big first throttle is opened
The aperture of element, on the contrary it turns down.
Relational expression between the aperture LA_cool_2 and outdoor environment temperature T4 and running frequency F of second restricting element are as follows:
LA_cool_2=a2·F+b2T4+c2, when the aperture LA_cool_2 of calculating is greater than the practical aperture of the second restricting element of acquisition
When, the aperture of the second restricting element is increased into calculating aperture；Otherwise it turns down.Wherein, 0≤a2≤ 30,0≤b2≤ 30, -50≤
c2≤ 150, control coefrficient a, b, c can be 0, when any one coefficient is zero, it was demonstrated that the corresponding parameter pair of the coefficient
Restricting element aperture is without influence.
When heating, the value interval of preset medium temperature can be 20 DEG C -30 DEG C, the value area of preset intermediate pressure
Between can be 1.0MPa-2.5MPa.When detecting that intermediate pressure or temperature are higher than setting value, big second restricting element is opened
Aperture, on the contrary it turns down.
Relational expression between the aperture LA_heat_2 and outdoor environment temperature T4 and running frequency F of first throttle element are as follows:
LA_heat_2=x2·F+y2T4+z2, when the aperture LA_heat_2 of calculating is greater than the practical aperture of the first throttle element of acquisition
When, the aperture of first throttle element is increased into calculating aperture；Otherwise it turns down.Wherein, 0≤x2≤ 25,0≤y2≤ 25, -50
≤z2≤ 150, control coefrficient x, y, z can be 0, when any one coefficient is zero, it was demonstrated that the corresponding parameter of the coefficient
On restricting element aperture without influence.
Such as when refrigeration, medium temperature is set as 26 DEG C or sets intermediate pressure 1.65MPa, detects outdoor environment temperature
Degree is 35 DEG C, compressor operating frequency 58Hz, sets a2=1.5, b2=1.6, c2=17.Firstly, system is according to collected
The aperture of medium temperature or intermediate pressure value adjustment first throttle element.When collected medium temperature is greater than 26 DEG C or adopts
When the intermediate pressure collected is greater than 1.65MPa, the aperture (movement of 4 steps can be adjusted by each) of first throttle element is gradually turned down.
Otherwise turn aperture down.Then system is according to detecting that outdoor environment temperature and compressor operating frequency calculate the second restricting element
Set aperture as 160, then adjust the aperture of the second restricting element to 160.After the aperture 200s for maintaining two restricting elements,
Again compressor operating frequency and T4 value, or the adjustment according to user to air-conditioning are detected, compressor operating frequency and T4 are detected
Value, readjusts first throttle element and the second restricting element.
According to this adjustment mode, equivalent specifications air conditioner, efficiency are high by 6.5% currently on the market for air conditioner Energy Efficiency Ratio.
When heating, medium temperature is set as 26 DEG C, intermediate pressure 1.6MPa, detects that outdoor environment temperature is 7 DEG C, compression
Machine running frequency is 72Hz, sets x2=1, y2=3.0, z2=7.0.First system according to collected medium temperature or in
Between pressure value adjust the second restricting element aperture.When the intermediate pressure that the medium temperature detected is greater than 26 DEG C or detects
When greater than 1.6MPa, the aperture (movement of 4 steps can be adjusted by each) of the second restricting element is gradually increased.Otherwise turn aperture down.So
The aperture that first throttle element is calculated afterwards is 100, adjusts the aperture of first throttle element to 100.Maintain two throttling members
After the aperture 200s of part, compressor operating frequency and T4 value, or the adjustment according to user to air-conditioning, detection compression are detected again
Machine running frequency and T4 value, readjust first throttle element and the second restricting element.
According to this adjustment mode, equivalent specifications air conditioner, efficiency are high by 6.5% currently on the market for air conditioner Energy Efficiency Ratio.
Embodiment 6:
In this embodiment, multiple outdoor temperature sections are preset, each outdoor temperature section corresponds to different restricting elements
Aperture, the first test object be outdoor environment temperature T4, the outdoor where the actually detected outdoor environment temperature T4 arrived
The aperture of the corresponding opening value adjustment level-one restricting element of temperature range.
Second test object is outdoor environment temperature T4 and running frequency F, first according to outdoor environment temperature T4 and operation
The setting aperture of two-step throttle element is calculated in frequency F, then according to the aperture of setting aperture adjustment two-step throttle element.
Specifically, when refrigeration, the concrete condition of the aperture of the corresponding first throttle element in different outdoor temperature sections 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 the aperture LA_cool_2 and outdoor environment temperature T4 and running frequency F of second restricting element are as follows:
LA_cool_2=a2·F+b2T4+c2, when the aperture LA_cool_2 of calculating is greater than the practical aperture of the second restricting element of acquisition
When, the aperture of the second restricting element is increased into calculating aperture；Otherwise it turns down.Wherein, 0≤a2≤ 30,0≤b2≤ 30, -50≤
c2≤ 150, control coefrficient a, b, c can be 0, when any one coefficient is zero, it was demonstrated that the corresponding parameter pair of the coefficient
Restricting element aperture is without influence.
When heating, the concrete condition of the aperture of corresponding second restricting element in different outdoor temperature sections is as follows:
| 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 the aperture LA_heat_2 and outdoor environment temperature T4 and running frequency F of first throttle element are as follows:
LA_heat_2=x2·F+y2T4+z2, when the aperture LA_heat_2 of calculating is greater than the practical aperture of the first throttle element of acquisition
When, the aperture of first throttle element is increased into calculating aperture；Otherwise it turns down.Wherein, 0≤x2≤ 25,0≤y2≤ 25, -50≤
z2≤ 150, control coefrficient x, y, z can be 0, when any one coefficient is zero, it was demonstrated that the corresponding parameter pair of the coefficient
Restricting element aperture is without influence.
For example, detecting that outdoor environment temperature is 35 DEG C, compressor operating frequency 58Hz when refrigeration, setting a2=
1.5,b2=1.6, c2=17.Firstly, system obtains opening for first throttle element according to outdoor environment temperature T4 is collected 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
What machine running frequency calculated the second restricting element sets aperture as 160, then adjusts the aperture of the second restricting element to 160.
After the aperture 200s for maintaining two restricting elements, compressor operating frequency and T4 value are detected again, or according to user to air-conditioning
Adjustment, detect compressor operating frequency and T4 value, first throttle element and the second restricting element readjusted.
According to this adjustment mode, equivalent specifications air conditioner, efficiency are high by 6.5% currently on the market for air conditioner Energy Efficiency Ratio.
When heating, detects that outdoor environment temperature is 7 DEG C, compressor operating frequency 72Hz, set 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 collected outdoor environment temperature T4
The aperture of whole second restricting element is to 180；Then the aperture that first throttle element is calculated is 100, adjustment first throttle member
The aperture of part is to 100.After the aperture 200s for maintaining two restricting elements, compressor operating frequency and T4 value are detected again, or
Adjustment according to user to air-conditioning detects compressor operating frequency and T4 value, to first throttle element and the second restricting element into
Row is readjusted.
According to this adjustment mode, equivalent specifications air conditioner, efficiency are high by 6.5% currently on the market for air conditioner Energy Efficiency Ratio.
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, such as can be by the tune of the aperture of level-one 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 it is actually detected to outdoor ring
Border temperature obtains, such as presets multiple outdoor environment temperature sections, and multiple outdoor environment temperature sections correspond to different compressors
Running frequency.
In the present invention unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be with
It is that the first and second features directly contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of
First feature horizontal height is higher than second feature.Fisrt feature can be under the second feature " below ", " below " and " below "
One feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal 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 spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (11)
1. a kind of heating and air conditioner characterized by comprising
Duplex cylinder compressor, the duplex cylinder compressor include shell, the first cylinder, the second cylinder, the first liquid storage device and the second liquid storage
Device, the shell are equipped with exhaust outlet, and first cylinder and second cylinder are respectively provided in the shell, and described first
Liquid storage device and second liquid storage device are located at outside the shell, and the air entry of first cylinder and first liquid storage device connect
Logical, the air entry of second cylinder is connected to second liquid storage device, the exhaust of second cylinder and first cylinder
The value range of volume ratio is 1%~9%；
Commutate component, and the commutation component includes the first valve port to the 4th valve port, first valve port and the second valve port and third
One of connection in valve port, the 4th valve port are connected to another in second valve port and the third valve port,
First valve port is connected with the exhaust outlet, and the 4th valve port is connected with first liquid storage device；
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 third valve port；
Gas-liquid separator, the gas-liquid separator include gas vent, first interface and second interface, the gas vent and institute
State the second liquid storage device be connected, the first interface is connected with the second end of the outdoor heat exchanger, the second interface with it is described
The second end of indoor heat exchanger is connected, and the adjustable first segment of aperture is in series between the first interface and the outdoor heat exchanger
Fluid element is in series with adjustable second restricting element of aperture between the second interface and the indoor heat exchanger；Wherein changes in temperature
When type air conditioner is run, the restricting element that upstream is located in the first throttle element and second restricting element is level-one section
Restricting element in fluid element, the first throttle element and second restricting element positioned at downstream is two-step throttle element；
The heating and air conditioner further includes electric control element, and the electric control element is configured to first according to the inspection to the first test object
Survey result adjusts the aperture of the level-one restricting element to aperture is set, then according to the testing result tune to the second test object
The aperture of the whole two-step throttle element is less than the two-step throttle to aperture, the setting aperture of the level-one restricting element is set
The setting aperture of element, the testing result of first test object are different from the testing result of second test object；
First test object includes outdoor environment temperature, the running frequency of duplex cylinder compressor, the delivery temperature of exhaust outlet, row
The pressure at expulsion of port, the intermediate pressure for the refrigerant being discharged from the gas vent, the refrigerant that is discharged from the gas vent
At least one of medium temperature；
Second test object includes outdoor environment temperature, the running frequency of duplex cylinder compressor, the delivery temperature of exhaust outlet, row
The pressure at expulsion of port, the intermediate pressure for the refrigerant being discharged from the gas vent, the refrigerant that is discharged from the gas vent
At least one of medium temperature.
2. heating and air conditioner according to claim 1, which is characterized in that the first throttle element is electronic expansion
Valve, second restricting element are electric expansion valve.
3. heating and air conditioner according to claim 1, which is characterized in that the gas vent and second liquid storage device
Between be in series with solenoid valve.
4. heating and air conditioner according to claim 1, which is characterized in that the value model of the volume of the gas-liquid separator
It encloses for 100mL-500mL.
5. heating and air conditioner described in any one of -4 according to claim 1, which is characterized in that the appearance of first liquid storage device
Product is greater than the volume of second liquid storage device.
6. a kind of control method of heating and air conditioner as claimed in one of claims 1-5, which is characterized in that cold-warm type is empty
When adjusting device operation, the restricting element that upstream is located in the first throttle element and second restricting element is level-one throttling member
Restricting element in part, the first throttle element and second restricting element positioned at downstream is two-step throttle element；
The control method includes the following steps: that adjusting the level-one according to the testing result to the first test object first throttles
The aperture of element is to aperture is set, and then basis adjusts opening for the two-step throttle element to the testing result of the second test object
Degree to setting aperture, the setting aperture of the level-one restricting element less than the two-step throttle element setting aperture, described the
The testing result of one test object is different from the testing result of second test object；
Wherein first test object includes the exhaust temperature of outdoor environment temperature, the running frequency of duplex cylinder compressor, exhaust outlet
Degree, exhaust outlet pressure at expulsion, from the gas vent be discharged refrigerant intermediate pressure, from the gas vent be discharged it is cold
At least one of medium temperature of matchmaker；
Second test object includes outdoor environment temperature, the running frequency of duplex cylinder compressor, the delivery temperature of exhaust outlet, row
The pressure at expulsion of port, the intermediate pressure for the refrigerant being discharged from the gas vent, the refrigerant that is discharged from the gas vent
At least one of medium temperature.
7. the control method of heating and air conditioner according to claim 6, which is characterized in that first test object is
Outdoor environment temperature T4 and running frequency F is calculated one according to the outdoor environment temperature T4 and the running frequency F first
Then the setting aperture of grade restricting element adjusts the aperture of the level-one restricting element according to setting aperture；
Second test object is outdoor environment temperature T4, running frequency F and pressure at expulsion；Or second test object
For outdoor environment temperature T4, running frequency F and delivery temperature, first according to the outdoor environment temperature T4 and the running frequency
F is calculated setting pressure at expulsion and perhaps sets delivery temperature then according to the actually detected pressure at expulsion arrived or exhaust temperature
Degree adjustment two-step throttle element aperture so that the pressure at expulsion or delivery temperature that detect reach setting pressure at expulsion or
Set delivery temperature.
8. the control method of heating and air conditioner according to claim 6, which is characterized in that preset multiple outdoor temperature areas
Between, each outdoor temperature section corresponds to the aperture of different restricting elements,
First test object is outdoor environment temperature T4, the outdoor temperature where the actually detected outdoor environment temperature T4 arrived
The aperture of the corresponding opening value adjustment level-one restricting element in section；
Second test object is outdoor environment temperature T4, running frequency F and pressure at expulsion；Or second test object
For outdoor environment temperature T4, running frequency F and delivery temperature, first according to the outdoor environment temperature T4 and the running frequency
F is calculated setting pressure at expulsion and perhaps sets delivery temperature then according to the actually detected pressure at expulsion arrived or exhaust temperature
Degree adjustment two-step throttle element aperture so that the pressure at expulsion or delivery temperature that detect reach setting pressure at expulsion or
Set delivery temperature.
9. the control method of heating and air conditioner according to claim 6, which is characterized in that default medium temperature is pre-
If intermediate pressure, first test object is intermediate pressure or medium temperature, according to the actually detected intermediate pressure arrived or
The aperture of person's medium temperature adjustment level-one restricting element so that the intermediate pressure or medium temperature that detect reach default in
Between pressure or default medium temperature；
Second test object is outdoor environment temperature T4, running frequency F and pressure at expulsion；Or second test object
For outdoor environment temperature T4, running frequency F and delivery temperature, first according to the outdoor environment temperature T4 and the running frequency
F is calculated setting pressure at expulsion and perhaps sets delivery temperature then according to the actually detected pressure at expulsion arrived or exhaust temperature
Degree adjustment two-step throttle element aperture so that the pressure at expulsion or delivery temperature that detect reach setting pressure at expulsion or
Set delivery temperature.
10. the control method of heating and air conditioner according to claim 6, which is characterized in that default medium temperature or
Default intermediate pressure, first test object is intermediate pressure or medium temperature, according to the actually detected intermediate pressure arrived
Either the aperture of medium temperature adjustment level-one restricting element is so that the intermediate pressure or medium temperature that detect reach default
Intermediate pressure or default medium temperature；
Second test object is outdoor environment temperature T4 and running frequency F, first according to the outdoor environment temperature T4 and
The setting aperture of two-step throttle element is calculated in the running frequency F, then adjusts the two-step throttle according to setting aperture
The aperture of element.
11. the control method of heating and air conditioner according to claim 6, which is characterized in that preset multiple outdoor temperatures
Section, each outdoor temperature section correspond to the aperture of different restricting elements,
First test object is outdoor environment temperature T4, the outdoor temperature where the actually detected outdoor environment temperature T4 arrived
The aperture of the corresponding opening value adjustment level-one restricting element in section；
Second test object is outdoor environment temperature T4 and running frequency F, first according to the outdoor environment temperature T4 and
The setting aperture of two-step throttle element is calculated in the running frequency F, then adjusts the two-step throttle according to setting aperture
The aperture of element.
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| CN201610281559.5A CN105783323B (en) | 2016-04-29 | 2016-04-29 | Heating and air conditioner and its control method |
| PCT/CN2016/087936 WO2017185517A1 (en) | 2016-04-29 | 2016-06-30 | Cooling and heating air conditioner, cooling-only air conditioner, and control method for air conditioner |
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| CN201610281559.5A CN105783323B (en) | 2016-04-29 | 2016-04-29 | Heating and air conditioner and its control method |
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| CN106247666A (en) * | 2016-08-24 | 2016-12-21 | 广东美芝制冷设备有限公司 | Refrigerating plant |
| CN106556188B (en) * | 2016-11-29 | 2019-10-01 | 珠海格力电器股份有限公司 | Control method for refrigerant flow of air conditioning system |
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| EP0890804A2 (en) * | 1997-07-10 | 1999-01-13 | Denso Corporation | Refrigerant cycle system |
| CN101978226A (en) * | 2008-03-18 | 2011-02-16 | 大金工业株式会社 | Refrigeration apparatus |
| CN103557624A (en) * | 2013-10-11 | 2014-02-05 | 广东美芝制冷设备有限公司 | Refrigeration cycling device |
| CN204630128U (en) * | 2015-02-03 | 2015-09-09 | 广东美芝制冷设备有限公司 | Refrigeration system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5627620B2 (en) * | 2012-02-29 | 2014-11-19 | 日立アプライアンス株式会社 | Air conditioner |
| CN105202796B (en) * | 2015-10-10 | 2016-08-17 | 广东美芝制冷设备有限公司 | Air conditioning system and there is its air-conditioner |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0890804A2 (en) * | 1997-07-10 | 1999-01-13 | Denso Corporation | Refrigerant cycle system |
| CN101978226A (en) * | 2008-03-18 | 2011-02-16 | 大金工业株式会社 | Refrigeration apparatus |
| CN103557624A (en) * | 2013-10-11 | 2014-02-05 | 广东美芝制冷设备有限公司 | Refrigeration cycling device |
| CN204630128U (en) * | 2015-02-03 | 2015-09-09 | 广东美芝制冷设备有限公司 | Refrigeration system |
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