CN105890212A - Method for controlling single-cold type air conditioner - Google Patents
Method for controlling single-cold type air conditioner Download PDFInfo
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- CN105890212A CN105890212A CN201610285927.3A CN201610285927A CN105890212A CN 105890212 A CN105890212 A CN 105890212A CN 201610285927 A CN201610285927 A CN 201610285927A CN 105890212 A CN105890212 A CN 105890212A
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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
- F25B1/00—Compression machines, plants or systems with non-reversible cycle
- F25B1/10—Compression machines, plants or systems with non-reversible cycle with multi-stage compression
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/25—Control of valves
- F25B2600/2513—Expansion valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/15—Power, e.g. by voltage or current
- F25B2700/151—Power, e.g. by voltage or current of the compressor motor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/17—Speeds
- F25B2700/171—Speeds of the compressor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/19—Pressures
- F25B2700/193—Pressures of the compressor
- F25B2700/1931—Discharge pressures
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/21—Temperatures
- F25B2700/2106—Temperatures of fresh outdoor air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/21—Temperatures
- F25B2700/2115—Temperatures of a compressor or the drive means therefor
- F25B2700/21152—Temperatures of a compressor or the drive means therefor at the discharge side of the compressor
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- 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 method for controlling a single-cold type air conditioner. The single-cold type air conditioner comprises a dual-cylinder compressor, an outdoor heat exchanger, an indoor heat exchanger and a gas-liquid separator. A gas suction opening of a first gas cylinder communicates with a first liquid reservoir. The value range of the exhaust volume ratio of a second gas cylinder to the first gas cylinder is 1%-10%. The gas-liquid separator comprises a gas outlet, a first connector and a second connector. The gas outlet is connected with the second gas cylinder. A first throttling element with the fixed opening degree is connected between the first connector and the outdoor heat exchanger in series. A second throttling element with the adjustable opening degree is connected between the second connector and the indoor heat exchanger in series. According to the method for controlling the single-cold type air conditioner, the energy efficiency of the air conditioner is effectively improved.
Description
Technical field
The present invention relates to refrigerating field, especially relate to the control method of a kind of single cold type air-conditioner.
Background technology
Gaseous refrigerant after throttling and before entering vaporizer is not carried out excellent by current air-conditioning refrigeration system
Change cyclic design, cause gaseous refrigerant to affect evaporator heat exchange performance, and increase compressor compresses power consumption,
Thus have influence on energy efficiency of air conditioner level.Air injection enthalpy-increasing and Two-stage Compression technology can improve air conditioning system low
Heating capacity level under gentle ultralow temperature, but for the commonly used cooling condition of air-conditioning, efficiency promotes non-
The most limited.
Summary of the invention
It is contemplated that one of technical problem solved the most to a certain extent in correlation technique.
To this end, the present invention proposes the control method of a kind of single cold type air-conditioner, air-conditioner energy can be effectively improved
Effect, effectively facilitates energy-saving and emission-reduction.
The control method of single cold type air-conditioner according to embodiments of the present invention, described single cold type air-conditioner includes:
Duplex cylinder compressor, described duplex cylinder compressor includes housing, the first cylinder, the second cylinder and the first reservoir,
Described housing is provided with air vent, described first cylinder and described second cylinder and is respectively provided in described housing,
Described first reservoir is located at outside described housing, and the air entry of described first cylinder is with described first reservoir even
Logical, the span of the delivery space ratio of described second cylinder and described first cylinder is 1%～10%；Room
External heat exchanger and indoor heat exchanger, the first end of described outdoor heat exchanger is connected with described air vent, described room
First end of interior heat exchanger is connected with described first reservoir；Gas-liquid separator, described gas-liquid separator includes
Gas outlet, first interface and the second interface, described gas outlet is connected with the air entry of described second cylinder,
Described first interface is connected with the second end of described outdoor heat exchanger, described second interface and described indoor heat exchange
Second end of device is connected, and is in series with the first of fixing aperture between described first interface and described outdoor heat exchanger
Restricting element, is in series with the adjustable second throttling unit of aperture between described second interface and described indoor heat exchanger
Part；According to the testing result detecting object to first when described control method comprises the steps: refrigerating operaton
Adjust the aperture of described second section fluid element to setting aperture；Wherein said first detection object includes outdoor ring
Border temperature, the running frequency of duplex cylinder compressor, the delivery temperature of air vent, the pressure at expulsion of air vent, from
The intermediate pressure of the coolant that described gas outlet discharges, the coolant discharged from described gas outlet in the middle of temperature
At least one in degree, gas-liquid separator temperature, pressure of the gas and liquid separator.
The control method of single cold type air-conditioner according to embodiments of the present invention, compresses by arranging above-mentioned twin-tub
Machine, can be effectively improved energy efficiency of air conditioner, effectively facilitate energy-saving and emission-reduction, simultaneously by arranging gas-liquid separator,
Heat exchange efficiency can be improved, reduce compressor compresses power consumption, improve air-conditioner ability and efficiency further, can
Well to control the default aperture of aperture arrival of second section fluid element, reach optimum energy-saving effect.
In some embodiments of the invention, described first throttle element is capillary tube or choke valve, described
Second section fluid element is electric expansion valve.
In some embodiments of the invention, go here and there between the air entry of described gas outlet and described second cylinder
It is associated with electromagnetic valve.
In some embodiments of the invention, the span of gas-liquid separator volume is 100mL-500mL.
In some embodiments of the invention, described first detection object is outdoor environment temperature T4 and aerofluxus
Temperature, first obtain running frequency F according to the outdoor environment temperature T4 that detects, and according to detecting
Described outdoor environment temperature T4 and described running frequency F are calculated setting delivery temperature, then adjust institute
State the aperture of second section fluid element so that the described delivery temperature detected reaches to set delivery temperature.
In some embodiments of the invention, described first detection object is outdoor environment temperature T4 and aerofluxus
Pressure, first obtain running frequency F according to the outdoor environment temperature T4 that detects, and according to detecting
Described outdoor environment temperature T4 and described running frequency F are calculated setting pressure at expulsion, then adjust institute
State the aperture of second section fluid element so that the described pressure at expulsion detected reaches to set pressure at expulsion.
In some embodiments of the invention, described first detection object is outdoor environment temperature T4, first
Running frequency F is obtained according to the outdoor environment temperature T4 detected, and according to the described outdoor ring detected
Border temperature T4 and described running frequency F are calculated the setting aperture of described second section fluid element, then adjust
The aperture of whole described second section fluid element is to setting aperture.
In some embodiments of the invention, multiple outdoor temperatures are preset interval, each described outdoor temperature district
Between the design temperature of corresponding different described gas-liquid separator, described first detection object is outdoor environment temperature
T4 and the temperature of described gas-liquid separator, first according to actually detected to outdoor environment temperature T4 obtain institute
The design temperature of gas-liquid separator corresponding to outdoor temperature interval, then adjust described second section fluid element
Aperture until actually detected to the temperature of described gas-liquid separator meet described design temperature.
In some embodiments of the invention, described first detection object is outdoor environment temperature T4 and centre
Pressure；First running frequency F is obtained according to the outdoor environment temperature T4 that detects, and according to detecting
Described outdoor environment temperature T4 and described running frequency F are calculated setting intermediate pressure, then adjust institute
State the aperture of second section fluid element so that the described intermediate pressure detected reaches to set intermediate pressure.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the single cold type air-conditioner according to the embodiment of the present invention；
Fig. 2 is the schematic diagram of the single cold type air-conditioner being provided with electromagnetic valve according to the embodiment of the present invention；
Fig. 3 is the schematic diagram of the duplex cylinder compressor according to the embodiment of the present invention；
Fig. 4 is the flow chart of the control method during single cold type air-conditioner refrigeration according to the embodiment of the present invention.
Reference:
Single cold type air-conditioner 100,
Duplex cylinder compressor 1, housing the 10, first cylinder the 11, second cylinder the 12, first reservoir 13, row
QI KOU 15,
Outdoor heat exchanger 3, indoor heat exchanger 4,
Gas-liquid separator 5, gas outlet m, first interface f, the second interface g,
First throttle element 6, second section fluid element 7,
Electromagnetic valve 20.
Detailed description of the invention
Embodiments of the invention are described below in detail, and the example of described embodiment is shown in the drawings.Lead to below
It is exemplary for crossing the embodiment being described with reference to the drawings, it is intended to be used for explaining the present invention, and it is not intended that right
The restriction of the present invention.
In describing the invention, it is to be understood that term " " center ", " longitudinally ", " laterally ",
" length ", " width ", " thickness ", " on ", D score, "front", "rear", " left ",
" right ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ",
" counterclockwise ", " axially ", " radially ", " circumferential " etc. instruction orientation or position relationship be based on
Orientation shown in the drawings or position relationship, be for only for ease of the description present invention and simplify description rather than refer to
Show or imply the device of indication or element must have specific orientation, with specific azimuth configuration and operation,
Therefore it is not considered as limiting the invention.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or dark
Show relative importance or the implicit quantity indicating indicated technical characteristic.Thus, define " first ",
The feature of " second " can express or implicitly include at least one this feature.In describing the invention,
" multiple " are meant that at least two, such as two, three etc., unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, term " install ", " being connected ", " even
Connect ", the term such as " fixing " should be interpreted broadly, connect for example, it may be fixing, it is also possible to be removable
Unload connection, or integral；Can be mechanically connected, it is also possible to be electrical connection or each other can communication；Can be
It is joined directly together, it is also possible to be indirectly connected to by intermediary, can be the connection of two element internals or two
The interaction relationship of element, unless otherwise clear and definite restriction.For the ordinary skill in the art,
Above-mentioned term concrete meaning in the present invention can be understood as the case may be.
Single cold type air-conditioner 100 according to embodiments of the present invention is described in detail first below with reference to Fig. 1-Fig. 3,
Wherein single cold type air-conditioner 100 has refrigeration mode.
As shown in Figure 1-Figure 3, single cold type air-conditioner 100 according to embodiments of the present invention, including: twin-tub pressure
Contracting machine 1, outdoor heat exchanger 3 and indoor heat exchanger 4, gas-liquid separator 5, first throttle element 6, second
Restricting element 7.Wherein duplex cylinder compressor 1 includes housing the 10, first cylinder the 11, second cylinder 12 and
One reservoir 13, housing 10 is provided with air vent 15, and the first cylinder 11 and the second cylinder 12 are respectively provided at
In housing 10, the first reservoir 13 is located at outside housing 10, the air entry of the first cylinder 11 and the first liquid storage
Device 13 connects.It is to say, the first cylinder 11 and the second cylinder 12 carry out independent compression process, from
Coolant after the compression that one cylinder 11 is discharged and the coolant after the compression that the second cylinder 12 is discharged enter respectively
Then discharge from air vent 15 in housing 10.
The span of the delivery space ratio of the second cylinder 12 and the first cylinder 11 is 1%～10%.Enter one
Step ground, the span of the delivery space ratio of the second cylinder 12 and the first cylinder 11 is 1%～9%, preferably
Ground, the span of the delivery space ratio of the second cylinder 12 and the first cylinder 11 is 4%～9%.Such as
The delivery space ratio of two cylinders 12 and the first cylinder 11 can be the parameter such as 4%, 5%, 8% or 8.5%.
First end of outdoor heat exchanger 3 is connected with air vent 15, the first end of indoor heat exchanger 4 and first
Reservoir 13 is connected.Gas-liquid separator 5 includes gas outlet m, first interface f and the second interface g, gas
The air entry of body outlet m and the second cylinder 12 is connected, first interface f and the second end of outdoor heat exchanger 3
Being connected, the second interface g is connected with the second end of indoor heat exchanger 4, first interface f and outdoor heat exchanger 3
Between be in series with the first throttle element 6 of fixing aperture, connect between the second interface g and indoor heat exchanger 4
There is aperture adjustable second section fluid element 7.Alternatively, first throttle element 6 is capillary tube or choke valve,
Second section fluid element 7 is electric expansion valve, it is of course possible to be understood by, and second section fluid element 7 can also is that
Other apertures adjustable element such as heating power expansion valve.
When single cold type air-conditioner 100 freezes, the high temperature discharged from the air vent 15 of duplex cylinder compressor 1 is high
Pressure coolant is drained in outdoor heat exchanger 3 and carries out condensation heat radiation, the liquid refrigerants discharged from outdoor heat exchanger 3
It is drained into gas-liquid separator 5 from first interface f after the one-level reducing pressure by regulating flow of first throttle element 6
Row gas-liquid separation, the intermediate pressure gaseous coolant separated is drained into the second cylinder 12 from gas outlet m
Inside it is compressed.
From the intermediate pressure liquid coolant of the second interface g discharge of gas-liquid separator 5 through second section fluid element
Heat exchange is carried out to reduce indoor environment temperature in being drained into indoor heat exchanger 4 after the two-step throttle blood pressure lowering of 7, from
Indoor heat exchanger 4 discharge coolant be drained in the first reservoir 13, from first reservoir 13 discharge cold
Matchmaker is compressed in being drained into the first cylinder 11.
Thus analyzing and understand, when single cold type air-conditioner 100 runs, the coolant of different pressures state enters respectively
Enter in the first cylinder 11 and the second cylinder 12, the first cylinder 11 and the compression of the second cylinder 12 complete independently
Process, from first cylinder 11 discharge compression after coolant and from second cylinder 12 discharge compression after cold
Matchmaker discharges from air vent 15 after mixing in being discharged to housing 10, simultaneously because the second cylinder 12 and the first cylinder
The span of the delivery space ratio of 11 is 1%～10%, the coolant row that flow is less and pressure state is higher
Enter and be compressed in less the second cylinder 12 of delivery space, such that it is able to improve efficiency, energy-saving and emission-reduction.
Simultaneously by being provided with gas-liquid separator 5 between outdoor heat exchanger 3 and indoor heat exchanger 4, thus gas
Liquid/gas separator 5 is compressed in being expelled back into the second cylinder 12 after being separated by a part of gaseous coolant, by
This is flowed into the gas content in the coolant of indoor heat exchanger 4 when reducing refrigeration, decrease gaseous coolant pair
As the impact of heat exchange property of the indoor heat exchanger 4 of vaporizer, such that it is able to improve heat exchange efficiency, reduce
Compressor compresses power consumption.
Single cold type air-conditioner 100 according to embodiments of the present invention, by arranging above-mentioned duplex cylinder compressor 1, can
To be effectively improved energy efficiency of air conditioner, effectively facilitate energy-saving and emission-reduction, simultaneously by arranging gas-liquid separator 5, can
To improve heat exchange efficiency, reduce compressor compresses power consumption, improve air-conditioner ability and efficiency further.
As in figure 2 it is shown, in some embodiments of the invention, gas outlet m and the suction of the second cylinder 12
Electromagnetic valve 20 it is in series with, thus when the liquid coolant in gas-liquid separator 5 is beyond safety levels between QI KOU
Time, liquid refrigerants can be avoided to enter in the second cylinder 12, such that it is able to keep away by closing electromagnetic valve 20
Exempt from duplex cylinder compressor 1 and liquid hammer occurs, extend the service life of duplex cylinder compressor 1.It is possible to further
Gas-liquid separator 5 arranges liquid level sensor, controls electromagnetic valve by the testing result of liquid level sensor
The open and-shut mode of 20.
In some embodiments of the invention, the span of the volume of gas-liquid separator 5 is
100mL-500mL。
Inventor by single cold type air-conditioner according to the above embodiment of the present invention (set specified refrigerating capacity as
3.5kw, is set as 7.6% by the delivery space ratio of the second cylinder and the first cylinder) under different operating modes
Efficiency compares with existing single cold type air-conditioner efficiency at the same conditions, obtains following data:
| Measurement condition | Prior art efficiency | Technical solution of the present invention efficiency | Lifting ratio |
| Specified refrigeration | 3.93 | 4.26 | 8.40% |
| Middle refrigeration | 5.88 | 6.18 | 5.10% |
| APF | 4.61 | 4.92 | 6.72% |
It follows that single cold type air-conditioner according to embodiments of the present invention compresses relative to existing single cold type
Machine, each operating mode efficiency and annual efficiency APF are all obviously improved.
Inventor is by different specified refrigerating capacitys and the Dan Leng of the embodiment of the present invention of different delivery space ratio simultaneously
Type air-conditioner compares with the single cold type air-conditioner under existing identical operating mode, finds that efficiency all has lifting,
Such as inventor through overtesting find the embodiment of the present invention single cold type air-conditioner (set specified refrigerating capacity as
2.6kw, is set as 9.2% by the delivery space ratio of the second cylinder and the first cylinder) and existing identical work
Single cold type air-conditioner under condition is compared, and efficiency improves 7.3%.
Controlling party below with reference to Fig. 1-Fig. 4 detailed description single cold type air-conditioner according to embodiments of the present invention
Method, wherein single cold type air-conditioner is single cold type air-conditioner according to the above embodiment of the present invention.
The control method of single cold type air-conditioner according to embodiments of the present invention, comprises the steps: refrigerating operaton
Time according to first detection object testing result adjust second section fluid element aperture to setting aperture.The most just
Being to say, during refrigeration, acquisition process controls the parameter needed for second section fluid element, then according to the parameter obtained
Control the aperture of second section fluid element until meeting condition.
Wherein the first detection object includes outdoor environment temperature, the running frequency of duplex cylinder compressor, air vent
Delivery temperature, the pressure at expulsion of air vent, from gas outlet discharge coolant intermediate pressure, go out from gas
At least one in the medium temperature of coolant of mouth discharge, gas-liquid separator temperature, pressure of the gas and liquid separator.
Needing to illustrate, intermediate pressure and medium temperature can connect gas outlet and the by detection
Coolant in the pipeline of two cylinders draws.
After the aperture of second section fluid element meets condition, can be after running the n second, detection the first inspection again
Survey object, then adjust the aperture of second section fluid element according to testing result, so repeat.Certainly bar is repeated
Part is not limited to this, such as can be after receiving the operational order of user, detection the first detection object again,
Then the aperture of second section fluid element is adjusted according to testing result.In other words, when refrigeration, in the second throttling
After the aperture of element meets condition, the n second can run or after receiving the operation signal of user, right
The relevant parameter of the aperture of second section fluid element detects judgement again, then adjusts second section according to result of determination
The aperture of fluid element, so repeats.
The control method of single cold type air-conditioner according to embodiments of the present invention, can well control the second throttling
The aperture of element arrives presets aperture, reaches optimum energy-saving effect.
Control method according to embodiments of the present invention is described below in detail as a example by six specific embodiments.
Embodiment 1:
In this embodiment, the first detection object is outdoor environment temperature T4 and delivery temperature, first basis
The outdoor environment temperature T4 detected obtains running frequency F, and according to the outdoor environment temperature T4 detected
Being calculated setting delivery temperature with running frequency F, then adjusting the aperture of second section fluid element so that examining
The delivery temperature measured reaches to set delivery temperature.It is understood that computing formula is located at single cold type in advance
In the electric control element of air-conditioner, computing formula specifically can limit according to practical situation.
Specifically, when the first detection object is outdoor environment temperature T4 and delivery temperature, during refrigeration start
Detection outdoor environment temperature T4, determines running frequency F of compressor, determines according to T4 and F and set according to T4
Determining delivery temperature TP, wherein TP=a1*F+b1+c1*T4, the span of a1, b1, c1 can be with outdoor
Ambient temperature T4 is corresponding, such as 20 DEG C >=T4: a1 takes-10--10；B1 takes-100--100；c1
Take-10 10；When 20 DEG C of ＜ T4≤30 DEG C: a1 takes-8--8；B1 takes-80--80；C1 takes-8 8；
When 30 DEG C of ＜ T4≤40 DEG C: a1 takes-9--9；B1 takes-90--90；C1 takes-6 6；As 40 DEG C of ＜ T4
When≤50 DEG C: a1 takes-8--8；B1 takes-90--90；C1 takes-5 5；As 50 DEG C of ＜ T4: a1 takes
-10--10；B1 takes-100--100；C1 takes-5 5.Of course, it should be understood that a1, b1, c1
Value is not limited to this, such as can also be unrelated with outdoor environment temperature T4, but set in advance in system.
It should be noted that when a1, b1 one of them or time simultaneously value is 0, it is believed that formula above
In unrelated with this parameter, such as a1=0, i.e. think unrelated with frequency F.
Then according to the operation aperture of TP regulation second section fluid element.The regulation of second section fluid element is steady after putting in place
Fixed operation.Again detect outdoor temperature T4 after the n second whether to change or whether user has operation, then
Aperture according to associated change regulation second section fluid element.
Such as, refrigerating operaton of starting shooting, detect that T4 temperature is 35 DEG C, inquire about corresponding compressor under this T4
Running frequency should be 90HZ, and the delivery temperature coefficient a1 in corresponding temperature interval is 0.6, b1 is 20, c1 is
0.2, calculate setting delivery temperature TP=0.6*90+20+0.2*35=81, according to setting delivery temperature
Tp=81 DEG C, regulate second section fluid element aperture: the TP detected under initial opening has reached 90 degree, then
Open big second section fluid element, reach to set the second section fluid element aperture that delivery temperature Tp=81 DEG C is corresponding, also
That is make the delivery temperature detected reach to set delivery temperature.Second section fluid element reaches target aperture
Rear stable operation.Detect T4 after the n second to be not changed in, continue stable operation.
In this embodiment, the running frequency of compressor is determined by outdoor environment temperature, such as predetermined many
Individual outdoor environment temperature is interval, multiple outdoor environment temperature intervals corresponding multiple compressor operating frequencies respectively,
The outdoor environment temperature at the outdoor environment temperature place that inquiry detects is interval, i.e. can get corresponding compressor
Running frequency.Of course, it should be understood that the running frequency of compressor can also be by setting on the compressor
Detect device and detect.
Embodiment 2:
In this embodiment, the first detection object is outdoor environment temperature T4 and pressure at expulsion, first basis
The outdoor environment temperature T4 detected obtains running frequency F, and according to the outdoor environment temperature T4 detected
Being calculated setting pressure at expulsion with running frequency F, then adjusting the aperture of second section fluid element so that examining
The pressure at expulsion measured reaches to set pressure at expulsion.
Specifically, when the first detection object is outdoor environment temperature T4 and pressure at expulsion, during refrigeration start
Detection outdoor environment temperature T4, determines running frequency F of compressor, determines according to T4 and F and set according to T4
Determine pressure at expulsion Pp；Wherein Pp=a3*F+b3+c3*T4；The span of a3, b3, c3 can be with outdoor
Ambient temperature T4 is corresponding, such as 20 DEG C >=T4: a3 takes-5--5；B3 takes-8--8；C3 takes-1 1；
When 20 DEG C of ＜ T4≤30 DEG C: a3 takes-5 5；B3 takes-10--10；C3 takes-2 2；As 30 DEG C of ＜ T4
When≤40 DEG C: a3 takes-5--5；B3 takes-12--12；C3 takes-3 3；When 40 DEG C of ＜ T4≤50 DEG C:
A3 takes-6--6；B3 takes-15--15；C3 takes-4 4；As 50 DEG C of ＜ T4: a3 takes-7--7；B3 takes
-20--20；C3 takes-5 5.Of course, it should be understood that the value of a3, b3, c3 is not limited to this, example
As can also be unrelated with outdoor environment temperature T4, but set in advance in system.It should be noted that
When a3, b3 one of them or time simultaneously value is 0, it is believed that unrelated with this parameter in formula above,
Such as a3=0, i.e. think unrelated with frequency F.
Then according to the operation aperture of Pp regulation second section fluid element.The regulation of second section fluid element is steady after putting in place
Fixed operation.Again detect outdoor temperature T4 after the n second whether to change or whether user has operation, then
Second section fluid element aperture is regulated according to associated change.
Such as start shooting refrigerating operaton, detect that T4 temperature is 35 DEG C, inquire about corresponding compressor fortune under this T4
Line frequency should be 80HZ, and the pressure at expulsion coefficient a3 in corresponding temperature interval is 0.02, b3 is 0.7, c3 is
0.02, calculate pressure at expulsion Pp=0.02*80+0.7+0.02*35=3.0, according to setting pressure at expulsion
Pp=3.0MPa regulates second section fluid element aperture: detect that pressure at expulsion Pp reaches under initial opening
2.5MPa, then turn down second section fluid element, reaches to set the second throttling that pressure at expulsion Pp=3.0MPa is corresponding
Element aperture, say, that make the pressure at expulsion detected reach to set pressure at expulsion.Second section fluid element
Reach stable operation after target aperture.Detect T4 after the n second to be not changed in, continue stable operation.
In this embodiment, the running frequency of compressor is determined by outdoor environment temperature, such as predetermined many
Individual outdoor environment temperature is interval, multiple outdoor environment temperature intervals corresponding multiple compressor operating frequencies respectively,
The outdoor environment temperature at the outdoor environment temperature place that inquiry detects is interval, i.e. can get corresponding compressor
Running frequency.Of course, it should be understood that the running frequency of compressor can also be by setting on the compressor
Detect device and detect.
Embodiment 3:
In this embodiment, the first detection object is outdoor environment temperature T4, first according to the room detected
External environment temperature T4 obtains running frequency F, and according to the outdoor environment temperature T4 detected and running frequency
F is calculated the setting aperture of second section fluid element, and the aperture then adjusting second section fluid element is opened to setting
Degree.
Specifically, when the first detection object is outdoor environment temperature T4, sensing chamber's outer shroud when refrigeration starts
Border temperature T4；Determine compressor operating frequency F according to T4, determine second section fluid element according to T4 and F
Set aperture Lr；Wherein set aperture Lr=a5*F+b5+c5*T4；The wherein span of a5, b5, c5
Can be corresponding with outdoor environment temperature T4, such as preset different outdoor environment temperature intervals corresponding different
The span of a5, b5, c5, then can limit the value of a5, b5, c5 according to practical situation.
Compare setting aperture Lr and the difference of second section fluid element initial opening of second section fluid element, such as one
Cause, need not regulate, as inconsistent, then be adjusted to set aperture Lr.After the regulation of second section fluid element puts in place
Stable operation.Again detect outdoor temperature T4 after the n second whether to change or whether user has operation, so
Second section fluid element aperture is regulated afterwards according to associated change.
In this embodiment, the running frequency of compressor is determined by outdoor environment temperature, such as predetermined many
Individual outdoor environment temperature is interval, multiple outdoor environment temperature intervals corresponding multiple compressor operating frequencies respectively,
The outdoor environment temperature at the outdoor environment temperature place that inquiry detects is interval, i.e. can get corresponding compressor
Running frequency.Of course, it should be understood that the running frequency of compressor can also be by setting on the compressor
Detect device and detect.
Embodiment 4:
In this embodiment, preset multiple outdoor temperatures interval, the corresponding different gas in each outdoor temperature interval
The temperature of liquid/gas separator, the first detection object is the temperature of outdoor environment temperature T4 and gas-liquid separator, first
First according to actually detected to the outdoor environment temperature T4 gas-liquid that obtains the outdoor temperature interval at place corresponding divide
From the design temperature of device, then adjust the aperture of second section fluid element until the actually detected gas-liquid separator arrived
Temperature meet design temperature.
Specifically, when the temperature that the first detection object is outdoor environment temperature T4 and gas-liquid separator, system
Detection outdoor environment temperature T4 and temperature Ts of gas-liquid separator when cold boot runs, according to the room detected
External environment temperature T4 inquires about the design temperature of gas-liquid separator corresponding to corresponding outdoor temperature interval, such as
The corresponding relation of the interval design temperature with gas-liquid separator of outdoor temperature can be such that as 20 DEG C >=T4:
Ts takes 0 30；When 0 DEG C of ＜ T4≤30 DEG C: Ts takes 0 40；When 30 DEG C of ＜ T4≤40 DEG C: Ts takes 0 50；
When 40 DEG C of ＜ T4≤50 DEG C: Ts takes 0 60；As 50 DEG C of ＜ T4: Ts takes 0 65.It is of course possible to
Being understood by, above-mentioned numerical value is exemplary illustration, and is not the concrete restriction to the present invention.
Then the aperture of second section fluid element is adjusted so that temperature Ts of the gas-liquid separator detected meets
Design temperature.
Such as start shooting refrigerating operaton, detect that T4 temperature is 35 DEG C, inquire about corresponding gas-liquid under this T4 interval
Separator temperature Ts should be 26 DEG C, detects that temperature Ts of gas-liquid separator reaches under initial opening
20 DEG C, then turn down second section fluid element, reach the second section fluid element aperture that design temperature Ts=26 DEG C is corresponding,
That is temperature Ts making the gas-liquid separator detected reaches design temperature.Second section fluid element reaches
Stable operation after target aperture.Detect T4 after the n second to be not changed in, continue stable operation.
Embodiment 5:
In this embodiment, the first detection object is outdoor environment temperature T4 and intermediate pressure；First basis
The outdoor environment temperature T4 detected obtains running frequency F, and according to the outdoor environment temperature T4 detected
Being calculated setting intermediate pressure with running frequency F, then adjusting the aperture of second section fluid element so that examining
The intermediate pressure measured reaches to set intermediate pressure.
Specifically, the relational expression between intermediate pressure Ps and outdoor environment temperature T4 and running frequency F is set
Can be Ps=a7*F+b7+c7*T4, wherein the span of a7, b7, c7 can be with outdoor environment temperature
T4 is corresponding, such as, preset the value district of different outdoor environment temperature intervals corresponding different a7, b7, c7
Between, the value of a7, b7, c7 then can be limited according to practical situation.
In this embodiment, the running frequency of compressor is determined by outdoor environment temperature, such as predetermined many
Individual outdoor environment temperature is interval, multiple outdoor environment temperature intervals corresponding multiple compressor operating frequencies respectively,
The outdoor environment temperature at the outdoor environment temperature place that inquiry detects is interval, i.e. can get corresponding compressor
Running frequency.Of course, it should be understood that the running frequency of compressor can also be by setting on the compressor
Detect device and detect.
Embodiment 6:
In this embodiment, preset multiple outdoor temperatures interval, the corresponding different gas in each outdoor temperature interval
The pressure of liquid/gas separator, the first detection object is the pressure of outdoor environment temperature T4 and gas-liquid separator, first
First according to actually detected to the outdoor environment temperature T4 gas-liquid that obtains the outdoor temperature interval at place corresponding divide
From the setting pressure of device, then adjust the aperture of second section fluid element until the actually detected gas-liquid separator arrived
Pressure meet set pressure.
Specifically, when the pressure that the first detection object is outdoor environment temperature T4 and gas-liquid separator, system
Detection outdoor environment temperature T4 and the pressure Ps of gas-liquid separator when cold boot runs, according to the room detected
External environment temperature T4 inquires about the setting pressure of gas-liquid separator corresponding to corresponding outdoor temperature interval, such as
The interval corresponding relation setting pressure with gas-liquid separator of outdoor temperature can be such that as 20 DEG C >=T4:
Ps takes 0.1 8；When 20 DEG C of ＜ T4≤30 DEG C: Ps takes 0.1 10；When 30 DEG C of ＜ T4≤40 DEG C:
Ps takes 0.1 15；When 40 DEG C of ＜ T4≤50 DEG C: Ps takes 0.1 20；As 50 DEG C of ＜ T4: Ps
Take 0.1 25.Of course, it should be understood that above-mentioned numerical value is exemplary illustration, and it is not to this
Bright concrete restriction.
Then the aperture of second section fluid element is adjusted so that the pressure Ps of the gas-liquid separator detected meets
Set pressure.
Such as start shooting refrigerating operaton, detect that T4 temperature is 50 DEG C, inquire about corresponding gas-liquid under this T4 interval
The setting pressure Ps of separator should be 2.0MPa, the pressure Ps of the gas-liquid separator detected under initial opening
Reach 2.2MPa, then opened big second section fluid element, reached to set pressure Ps=2.2MPa corresponding second
Restricting element aperture, say, that the pressure Ps of the gas-liquid separator detected is met and sets pressure.
Second section fluid element reaches stable operation after target aperture.Detect T4 after the n second to be not changed in, continue stable
Run.
It is understood that illustrating of being merely given as of above-mentioned six specific embodiments, the embodiment of the present invention
Control method be not limited to above-mentioned six kinds, in above-described embodiment by calculated setting pressure at expulsion, set
Determine delivery temperature, set aperture, set the setup parameter such as intermediate pressure and can also adopt and draw in other ways,
It is interval that different outdoor temperatures such as can be set, the corresponding no setup parameter in multiple outdoor temperature intervals,
According to actually detected to the outdoor temperature interval at outdoor environment temperature place set ginseng the most accordingly
Number.Will also be appreciated that consulting the parameter obtained can also pass through to preset above by outdoor environment temperature
Computing formula draw.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on "
Or D score can be that the first and second features directly contact, or the first and second features are by middle matchmaker
Jie's mediate contact.And, fisrt feature second feature " on ", " top " and " above "
Fisrt feature is directly over second feature or oblique upper, or is merely representative of fisrt feature level height
Higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " permissible
Be fisrt feature immediately below second feature or obliquely downward, or it is little to be merely representative of fisrt feature level height
In second feature.
In the description of this specification, reference term " embodiment ", " some embodiments ", " show
Example ", the description of " concrete example " or " some examples " etc. means to combine this embodiment or example describes
Specific features, structure, material or feature be contained at least one embodiment or the example of the present invention.
In this manual, the schematic representation of above-mentioned term is necessarily directed to identical embodiment or shows
Example.And, the specific features of description, structure, material or feature can be with one or more embodiments in office
Or example combines in an appropriate manner.Additionally, in the case of the most conflicting, those skilled in the art
Member can be by the different embodiments described in this specification or example and different embodiment or the feature of example
It is combined and combines.
Although above it has been shown and described that embodiments of the invention, it is to be understood that above-described embodiment
It is exemplary, it is impossible to being interpreted as limitation of the present invention, those of ordinary skill in the art is the present invention's
In the range of above-described embodiment can be changed, revise, replace and modification.
Claims (9)
1. the control method of a single cold type air-conditioner, it is characterised in that described single cold type air-conditioner includes:
Duplex cylinder compressor, described duplex cylinder compressor includes housing, the first cylinder, the second cylinder and the first liquid storage
Device, described housing is provided with air vent, described first cylinder and described second cylinder and is respectively provided at described housing
In, described first reservoir is located at outside described housing, the air entry of described first cylinder and described first liquid storage
Device connects, and the span of the delivery space ratio of described second cylinder and described first cylinder is 1%～10%；
Outdoor heat exchanger and indoor heat exchanger, the first end of described outdoor heat exchanger is connected with described air vent,
First end of described indoor heat exchanger is connected with described first reservoir；
Gas-liquid separator, described gas-liquid separator includes gas outlet, first interface and the second interface, described
Gas outlet is connected with the air entry of described second cylinder, the of described first interface and described outdoor heat exchanger
Two ends are connected, and described second interface is connected with the second end of described indoor heat exchanger, described first interface and institute
State the first throttle element being in series with fixing aperture between outdoor heat exchanger, described second interface and described indoor
Aperture adjustable second section fluid element it is in series with between heat exchanger；
According to the testing result detecting object to first when described control method comprises the steps: refrigerating operaton
Adjust the aperture of described second section fluid element to setting aperture；Wherein said first detection object includes outdoor ring
Border temperature, the running frequency of duplex cylinder compressor, the delivery temperature of air vent, the pressure at expulsion of air vent, from
The intermediate pressure of the coolant that described gas outlet discharges, the coolant discharged from described gas outlet in the middle of temperature
At least one in degree, gas-liquid separator temperature, pressure of the gas and liquid separator.
The control method of single cold type air-conditioner the most according to claim 1, it is characterised in that described
First throttle element is capillary tube or choke valve, and described second section fluid element is electric expansion valve.
The control method of single cold type air-conditioner the most according to claim 1, it is characterised in that described
It is in series with electromagnetic valve between the air entry of gas outlet and described second cylinder.
The control method of single cold type air-conditioner the most according to claim 1, it is characterised in that described
The span of the volume of gas-liquid separator is 100mL-500mL.
The control method of single cold type air-conditioner the most according to claim 1, it is characterised in that described
First detection object is outdoor environment temperature T4 and delivery temperature, first according to the outdoor environment temperature detected
Degree T4 obtains running frequency F, and according to the described outdoor environment temperature T4 detected and described running frequency
F is calculated setting delivery temperature, then adjusts the aperture of described second section fluid element so that detecting
Described delivery temperature reaches to set delivery temperature.
The control method of single cold type air-conditioner the most according to claim 1, it is characterised in that described
First detection object is outdoor environment temperature T4 and pressure at expulsion, first according to the outdoor environment temperature detected
Degree T4 obtains running frequency F, and according to the described outdoor environment temperature T4 detected and described running frequency
F is calculated setting pressure at expulsion, then adjusts the aperture of described second section fluid element so that detecting
Described pressure at expulsion reaches to set pressure at expulsion.
The control method of single cold type air-conditioner the most according to claim 1, it is characterised in that described
First detection object is outdoor environment temperature T4, is first transported according to the outdoor environment temperature T4 detected
Line frequency F, and the described outdoor environment temperature T4 and described running frequency F according to detecting be calculated
The setting aperture of described second section fluid element, the aperture then adjusting described second section fluid element is opened to setting
Degree.
The control method of single cold type air-conditioner the most according to claim 1, it is characterised in that preset
Multiple outdoor temperatures are interval, the setting of the corresponding different described gas-liquid separator in each described outdoor temperature interval
Temperature, described first detection object is outdoor environment temperature T4 and the temperature of described gas-liquid separator, first
According to actually detected to outdoor environment temperature T4 obtain the gas-liquid separation that the outdoor temperature interval at place is corresponding
The design temperature of device, then adjusts the aperture of described second section fluid element until the actually detected described gas-liquid arrived
The temperature of separator meets described design temperature.
The control method of single cold type air-conditioner the most according to claim 1, it is characterised in that described
First detection object is outdoor environment temperature T4 and intermediate pressure；First according to the outdoor environment temperature detected
Degree T4 obtains running frequency F, and according to the described outdoor environment temperature T4 detected and described running frequency
F is calculated setting intermediate pressure, then adjusts the aperture of described second section fluid element so that detecting
Described intermediate pressure reaches to set intermediate pressure.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610285927.3A CN105890212A (en) | 2016-04-29 | 2016-04-29 | Method for controlling single-cold type air conditioner |
| PCT/CN2016/087935 WO2017185516A1 (en) | 2016-04-29 | 2016-06-30 | Control method for cooling-heating type air conditioner and control method for cooling-only type air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610285927.3A CN105890212A (en) | 2016-04-29 | 2016-04-29 | Method for controlling single-cold type air conditioner |
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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 |
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Application publication date: 20160824 |