CN105066326B - A kind of air conditioning control method, system and air-conditioning - Google Patents
A kind of air conditioning control method, system and air-conditioning Download PDFInfo
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- CN105066326B CN105066326B CN201510416676.3A CN201510416676A CN105066326B CN 105066326 B CN105066326 B CN 105066326B CN 201510416676 A CN201510416676 A CN 201510416676A CN 105066326 B CN105066326 B CN 105066326B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/50—Load
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- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Atmospheric Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The present invention relates to a kind of air-conditioner control system and air conditioning control method, the air-conditioner control system includes compressor, outdoor heat exchanger, indoor heat exchanger, throttling arrangement, temperature sensing device, pressure responsive device and controller；Indoor heat exchanger outlet temperature T is detected by temperature sensing device, it is used to detect return-air pipe pressure P by pressure responsive device, controller adjusts compressor capacity output according to indoor heat exchanger outlet temperature T, and the aperture of throttling arrangement is adjusted according to indoor heat exchanger outlet temperature T and return-air pipe pressure P corresponding relation.Change of the invention according to load, the output of regulating power, improve adaptability of the indoor set to indoor environment, and production process without to master control borad carry out dial-up the step of, save the production time of separate unit indoor set, error rate is reduced, improves production efficiency and product quality, reduces because of wrong group of ability dial-up or produces the risk complained in market leakage is dialled.
Description
Technical field
The present invention relates to refrigeration technology field, more particularly to a kind of air conditioning control method, system and air-conditioning.
Background technology
In the prior art, it is necessary to dial the dial-up of respective capabilities size to the indoor heat exchanger of not same horsepower, outdoor is made with this
Heat exchanger identifies that indoor heat exchanger needs, and asks and makes corresponding output, to ensure that indoor heat exchanger has enough refrigerating capacitys.When
Occur air-conditioning type selecting scarce capacity, or indoor load increase, when effect is bad, can not adjust automatically ability output, with up to
To the actual demand of user.Need to carry out dial-up to every room heat exchanger machine in manufacture, production efficiency is not high, and indoor heat exchange
Device type is numerous to be also easy to dial the wrong number or leaks and dial, and causes indoor heat exchanger requirement capability and the output of actual outdoor heat exchanger inconsistent.
The content of the invention
The technical problems to be solved by the invention are in view of the shortcomings of the prior art, there is provided a kind of air conditioning control method, are
System and air-conditioning.It is not required to be manually set by dial-up etc., according to the change of load, the output of regulating power, improves indoor set to room
The adaptability of interior environment, and production process without to master control borad carry out dial-up the step of, when saving the production of separate unit indoor set
Between, error rate is reduced, improves production efficiency and product quality, reduces because of wrong group of ability dial-up or produces market leakage is dialled
The risk of complaint.
The technical scheme that the present invention solves above-mentioned technical problem is as follows：
A kind of air-conditioner control system, including compressor, outdoor heat exchanger, indoor heat exchanger, throttling arrangement, temperature sensing device,
Pressure responsive device and controller；The compressor, outdoor heat exchanger, indoor heat exchanger connect to form refrigerating circuit by pipeline, institute
State in the management that throttling arrangement is connected between the outdoor heat exchanger and the indoor heat exchanger, the temperature sensing device is fixed on
The exit of the indoor heat exchanger, the pipeline that the pressure responsive device is fixed between the indoor heat exchanger and the compressor
In, the temperature sensing device and pressure responsive device are connected with controller, and the controller is connected with compressor and throttling arrangement；The sense
Warm device is used to detect indoor heat exchanger outlet temperature T, and the pressure responsive device is used to detect return-air pipe pressure P, the controller
For adjusting compressor capacity output according to indoor heat exchanger outlet temperature T, temperature T is reached preset temperature, changed according to interior
The aperture of hot device outlet temperature T and return-air pipe pressure P corresponding relation regulation throttling arrangement, makes temperature T and return-air pipe pressure P's
Corresponding relation reaches preset relation.
The beneficial effects of the invention are as follows：The present invention is not required to be manually set by dial-up etc., passes through indoor set automatic decision room
Interior heat exchange temperature, the output of outdoor compressor is adjusted, with reference to the heat exchanger exit degree of superheat in throttling arrangement control room, ensure system
System can press the actual load demand of indoor, suitably be exported, and avoid system from only following intrinsic indoor set demand setting,
And the change of indoor environment can not be adapted to.The step of production process to master control borad without dial-up is carried out, save in separate unit room and exchange heat
The production time of device, while error rate is also reduced, production efficiency and product quality are improved, reduces and is dialled because ability dial-up is wrong
Or leakage is dialled and produces the risk of market complaint.
On the basis of above-mentioned technical proposal, the present invention can also do following improvement.
Further, the controller includes compressor control module, is pressed for being adjusted according to indoor heat exchanger outlet temperature T
Contracting function power exports, and temperature T is reached preset temperature, is specially：Indoor heat exchanger outlet temperature T is detected, judges indoor heat exchange
Device outlet temperature T and the first temperature Ta and second temperature Tb relation, if T>Ta, then it is predetermined to increase compressor capacity output
Value, rejudged after continuing the t1 times；If Tb<T<Ta, then control compressor capacity output constant, and maintain weight after the t1 times
It is new to judge；If T<Tb, then compressor capacity output predetermined value is reduced, and rejudged after maintaining the t1 times.
It is using the above-mentioned further beneficial effect of scheme：Automatic decision indoor heat exchanger outlet temperature T, and then adjust pressure
Contracting function power exports, and detects and easily realizes, easy to adjust.
Further, the controller also includes throttling arrangement control module, for according to indoor heat exchanger outlet temperature T with
The aperture of return-air pipe pressure P corresponding relation regulation throttling arrangement, makes temperature T and return-air pipe pressure P corresponding relation reach pre-
If relation, it is specially：Saturation temperature Tsat corresponding to calculating return-air pipe pressure P, utilizes indoor heat exchanger outlet temperature T and return-air
Saturation temperature Tsat corresponding to pipe pressure P calculates indoor the heat exchanger exit degree of superheat Tsh, Tsh=T-Tsat, judges outlet superheat
Tsh and the 3rd temperature Tc and the 4th temperature Td relation is spent, if Tsh>Tc then increases throttling arrangement aperture predetermined value, and maintains
T2 is rejudged after the time；If Td<Tsh<Tc, then control throttling arrangement aperture constant, and rejudged after maintaining the t2 times；
If Tsh<Td, then reduce throttling arrangement aperture predetermined value, and rejudged after maintaining the t2 times.
It is using the above-mentioned further beneficial effect of scheme：According to indoor heat exchanger outlet temperature T's and return-air pipe pressure P
Corresponding relation adjusts the aperture of throttling arrangement, further ensures and is properly exported by actual load demand on the inside of making.
Further, the outdoor heat exchanger is one or more than one, and the indoor heat exchanger is one or more than one,
The quantity of the temperature sensing device is equal with the quantity of the indoor heat exchanger, when the quantity of temperature sensing device is multiple, regulation compression
When function power exports, the average value of all temperature sensing device detection temperatures is calculated, compressor capacity is adjusted using obtained average value
Output, the regulation of the throttling arrangement aperture of every indoor heat exchanger, is examined according to temperature sensing device at every indoor heat exchanger respectively
The temperature of survey and the corresponding relation of return-air pipe pressure are adjusted.
It is using the above-mentioned further beneficial effect of scheme：When to realize indoor heat exchanger and outdoor heat exchanger be any amount
Airconditioning control, and realize accurately calculate the indoor heat exchanger outlet temperature T, realize being precisely controlled for refrigeration.
Further, above-mentioned technical proposal also includes reversal valve, the reversal valve by tracheae be connected to the compressor with
Between the outdoor heat exchanger, and between the compressor and the indoor heat exchanger, the pressure responsive device is fixed on interior
On pipeline between heat exchanger and reversal valve or it is fixed on the pipeline between the reversal valve and the compressor.
It is using the above-mentioned further beneficial effect of scheme：When not including reversal valve, the system is single cooling system, when
During including reversal valve, the system is cooling/warming system, and air conditioning control method of the present invention is not only suitable for single cooling system, is also suitable
Cooling/warming system, it is applied widely.
Further, the throttling arrangement (4) uses electric expansion valve, and the reversal valve (7) uses four-way valve, the temperature-sensitive
Device (5) uses temperature sensor, and the pressure responsive device (6) uses pressure sensor.
A kind of air conditioning control method, comprises the following steps：Indoor heat exchanger outlet temperature T, profit are detected using temperature sensing device
Return-air pipe pressure P is detected with pressure responsive device, controller adjusts compressor capacity according to indoor heat exchanger outlet temperature T and exported, makes
Temperature T reaches preset temperature, and throttling arrangement is adjusted according to indoor heat exchanger outlet temperature T and return-air pipe pressure P corresponding relation
Aperture, temperature T and return-air pipe pressure P corresponding relation is reached preset relation.
On the basis of above-mentioned technical proposal, the present invention can also do following improvement.
Further, compressor capacity output is adjusted according to indoor heat exchanger outlet temperature T, temperature T is reached preset temperature,
Specially：
Step S2.1A, indoor heat exchanger outlet temperature T is detected, judge indoor heat exchanger outlet temperature T and the first temperature Ta
With second temperature Tb relation,
Step S2.2Aa, if T>Ta, then increase compressor capacity output predetermined value, return to step after continuing the t1 times
S2.1A；
Step S2.2Ab, if Tb<T<Ta, then control compressor capacity output constant, and step is returned after maintaining the t1 times
Rapid S2.1A；
If step S2.2Ac T<Tb, then compressor capacity output predetermined value is reduced, and maintain return to step after the t1 times
S2.1A。
Further, opening for throttling arrangement is adjusted according to indoor heat exchanger outlet temperature T and return-air pipe pressure P corresponding relation
Degree, makes temperature T and return-air pipe pressure P corresponding relation reach preset relation, is specially：
Step S2.1B, calculate saturation temperature Tsat corresponding to return-air pipe pressure P；
Step S2.2B, calculated using saturation temperature Tsat corresponding to indoor heat exchanger outlet temperature T and return-air pipe pressure P
Indoor heat exchanger outlet superheat degree Tsh, Tsh=T-Tsat；
Step S2.3B, judge to make a slip of the tongue temperature Tsh and the 3rd temperature Tc and the 4th temperature Td relation；
Step S2.4Ba, if Tsh>Tc then increases throttling arrangement aperture predetermined value, and maintains return to step after the t2 times
S2.3B；
Step S2.4Bb, if Td<Tsh<Tc, then control throttling arrangement aperture constant, and step is returned after maintaining the t2 times
Rapid S2.3B；
Step S2.4Bc, if Tsh<Td, then reduce throttling arrangement aperture predetermined value, and maintain return to step after the t2 times
S2.3B。
A kind of air-conditioning, including the air-conditioner control system described in any of the above-described technical scheme.
Brief description of the drawings
Fig. 1 is the structural representation of air-conditioner control system described in the embodiment of the present invention 1；
Fig. 2 is the automatically controlled schematic diagram of air-conditioner control system described in the embodiment of the present invention 1；
Fig. 3 is the structural representation of air-conditioner control system described in the embodiment of the present invention 2；
Fig. 4 is air conditioning control method flow chart described in the embodiment of the present invention 3；
Fig. 5 is that compressor capacity exports specific adjusting method flow chart in the methods described of the embodiment of the present invention 3；
Fig. 6 is the specific adjusting method flow chart of throttling arrangement in the methods described of the embodiment of the present invention 3.
Embodiment
The principle and feature of the present invention are described below in conjunction with accompanying drawing, the given examples are served only to explain the present invention, and
It is non-to be used to limit the scope of the present invention.
Embodiment 1, as shown in Figure 1, 2, a kind of air-conditioner control system, including compressor 1, outdoor heat exchanger 2, indoor heat exchange
(temperature sensing device 5 and pressure responsive device 6 can pass through nothing for device 3, throttling arrangement 4, temperature sensing device 5, pressure responsive device 6 and controller 10
Line mode or wired mode are connected with the controller 10)；The compressor 1, outdoor heat exchanger 2, indoor heat exchanger 3 pass through pipe
Road is connected to form refrigerating circuit, and the throttling arrangement 4 is connected between the outdoor heat exchanger 2 and the indoor heat exchanger 3, institute
State the exit that temperature sensing device 5 is fixed on the indoor heat exchanger 3, the pressure responsive device 6 be fixed on the indoor heat exchanger 3 with
On pipeline between the compressor 1, the temperature sensing device 5 and pressure responsive device 6 are connected with controller 10, the controller 10 with
Compressor 1 and throttling arrangement 4 connect.Throttling arrangement 4 described in the present embodiment uses electric expansion valve, and the reversal valve 7 uses
Four-way valve, the temperature sensing device 5 use temperature sensor, and the pressure responsive device 6 uses pressure sensor.
When the system does not include reversal valve 7, the system is single cooling system, when including reversal valve 7, the system
For cooling/warming system, air conditioning control method of the present invention is not only suitable for single cooling system, is also suitable cooling/warming system, applied widely
It is general.The present embodiment includes reversal valve 7, and the reversal valve 7 is connected to the compressor 1 and the outdoor heat exchanger by tracheae
Between 2, and between the compressor 1 and the indoor heat exchanger 3, the pressure responsive device 6 is fixed on indoor heat exchanger 3 and changed
On to the pipeline between valve 7 or it is fixed on the pipeline between the reversal valve 7 and the compressor 1.
When running refrigeration mode, refrigerant changes after the compression of compressor 1 through overcompression machine blast pipe, reversal valve 7 and outdoor
Hot device 2, indoor set throttling arrangement 4 is flowed to after heat release respectively from liquid pipe 8, and indoor heat exchanger 3 is respectively enterd after reducing pressure by regulating flow,
Tracheae 9 is returned to after heat absorption evaporation, enters compressor 1 then along reversal valve 2 and compressor return air pipe.Heat exchanger 3 goes out indoors
Mouth fixes a temperature sensing device 5, there is a pressure responsive device 6 on tracheae 9.
The temperature sensing device 5 is used to detect the outlet temperature T of indoor heat exchanger 3, and the pressure responsive device 6 is used to detect muffler
Pressure P, the ability output that the controller 10 is used to adjust compressor 1 according to indoor heat exchanger outlet temperature T (can specifically show
For the frequency of frequency-changeable compressor), temperature T is reached preset temperature, according to indoor heat exchanger outlet temperature T and return-air pipe pressure P
Corresponding relation regulation throttling arrangement 4 aperture, temperature T and return-air pipe pressure P corresponding relation is reached preset relation.
Specifically, the controller 10 includes compressor control module, for being adjusted according to indoor heat exchanger outlet temperature T
Compressor capacity exports, and temperature T is reached preset temperature, is specially：Indoor heat exchanger outlet temperature T is detected, judges that interior is changed
Hot device outlet temperature T and the first temperature Ta and second temperature Tb relation, if T>Ta, then it is predetermined to increase compressor capacity output
Value n%, rejudged after continuing the t1 times；If Tb<T<Ta, then control compressor capacity output constant, and maintain the t1 times
After rejudge；If T<Tb, then compressor capacity output predetermined value n% is reduced, and rejudged after maintaining the t1 times.
The controller 10 also includes throttling arrangement control module, for according to indoor heat exchanger outlet temperature T and return-air
The aperture of pipe pressure P corresponding relation regulation throttling arrangement, makes temperature T and return-air pipe pressure P corresponding relation reach default pass
System, it is specially：
Saturation temperature Tsat corresponding to calculating return-air pipe pressure P, utilizes indoor heat exchanger outlet temperature T and return-air pipe pressure
Saturation temperature Tsat corresponding to P calculates indoor the heat exchanger exit degree of superheat Tsh, Tsh=T-Tsat, judges the temperature Tsh that makes a slip of the tongue
With the 3rd temperature Tc and the 4th temperature Td relation, if Tsh>Tc then increases throttling arrangement aperture predetermined value △ P, and maintains t2
Rejudged after time；If Td<Tsh<Tc, then control throttling arrangement aperture constant, and rejudged after maintaining the t2 times；Such as
Fruit Tsh<Td, then reduce throttling arrangement aperture predetermined value △ P, and rejudged after maintaining the t2 times.
Embodiment 2, as shown in figure 3, on the basis of embodiment 1, increase an indoor heat exchanger 3, respectively the first Room
The interior indoor heat exchanger 32 of heat exchanger 31 and second, while increase a throttling arrangement in the porch of increased indoor heat exchanger,
A temperature sensing device is fixed in its exit, the throttling arrangement in the porch of the first indoor heat exchanger 31 is first throttle device
41, its exit for the first temperature sensing device 51, the throttling arrangement in the porch of the second indoor heat exchanger 32 fills for the second throttling
Put 42, its exit for the second temperature sensing device 52.When adjusting compressor capacity output, all temperature sensing device detection temperatures are calculated
Average value, utilize obtain average value regulation compressor capacity output, the tune of the throttling arrangement aperture of every indoor heat exchanger
Section, the temperature and the corresponding relation of return-air pipe pressure detected respectively according to temperature sensing device at every indoor heat exchanger are adjusted
Section.The indoor heat exchanger and the quantity of corresponding throttling arrangement and temperature sensing device can be more than two, the indoor heat exchange
Device can be all turned on freezing, and can also partly open refrigeration, and part is standby.
Embodiment 3, as shown in figure 4, a kind of air conditioning control method, comprises the following steps：Detected using temperature sensing device indoor
Heat exchanger outlet temperature T, return-air pipe pressure P is detected using pressure responsive device, controller 10 is adjusted according to indoor heat exchanger outlet temperature T
Compressor capacity output is saved, temperature T is reached preset temperature, according to indoor heat exchanger outlet temperature T and return-air pipe pressure P pair
The aperture of regulation throttling arrangement should be related to, temperature T and return-air pipe pressure P corresponding relation is reached preset relation.
As shown in figure 5, adjusting compressor capacity output according to indoor heat exchanger outlet temperature T, temperature T is set to reach default temperature
Degree, it is specially：
Step S2.1A, indoor heat exchanger outlet temperature T is detected, judge indoor heat exchanger outlet temperature T and the first temperature Ta
With second temperature Tb relation,
Step S2.2Aa, if T>Ta, then compressor capacity output predetermined value n% is increased, step is returned after continuing the t1 times
Rapid S2.1A；
Step S2.2Ab, if Tb<T<Ta, then control compressor capacity output constant, and step is returned after maintaining the t1 times
Rapid S2.1A；
If step S2.2Ac T<Tb, then compressor capacity output predetermined value n% is reduced, and step is returned after maintaining the t1 times
Rapid S2.1A.
As shown in fig. 6, throttling arrangement is adjusted according to indoor heat exchanger outlet temperature T and return-air pipe pressure P corresponding relation
Aperture, temperature T and return-air pipe pressure P corresponding relation is reached preset relation, be specially：
Step S2.1B, calculate saturation temperature Tsat corresponding to return-air pipe pressure P；
Step S2.2B, calculated using saturation temperature Tsat corresponding to indoor heat exchanger outlet temperature T and return-air pipe pressure P
Indoor heat exchanger outlet superheat degree Tsh, Tsh=T-Tsat；
Step S2.3B, judge to make a slip of the tongue temperature Tsh and the 3rd temperature Tc and the 4th temperature Td relation；
Step S2.4Ba, if Tsh>Tc then increases throttling arrangement aperture predetermined value, and maintains return to step after the t2 times
S2.3B；
Step S2.4Bb, if Td<Tsh<Tc, then control throttling arrangement aperture constant, and step is returned after maintaining the t2 times
Rapid S2.3B；
Step S2.4Bc, if Tsh<Td, then reduce throttling arrangement aperture predetermined value, and maintain return to step after the t2 times
S2.3B。
A kind of air-conditioning, including the air-conditioner control system described in any of the above-described technical scheme, other existing parts repeat no more.
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent substitution and improvements made etc., it should be included in the scope of the protection.
Claims (10)
- A kind of 1. air-conditioner control system, it is characterised in that including compressor (1), outdoor heat exchanger (2), indoor heat exchanger (3), Throttling arrangement (4), temperature sensing device (5), pressure responsive device (6) and controller (10)；The compressor (1), outdoor heat exchanger (2), indoor heat exchanger (3) connect to form refrigerating circuit by pipeline, the section Stream device (4) is connected in the pipeline between the outdoor heat exchanger (2) and the indoor heat exchanger (3), the temperature sensing device (5) exit of the indoor heat exchanger (3) is fixed on, the pressure responsive device (6) is fixed on the indoor heat exchanger (3) and institute State in the pipeline between compressor (1), the temperature sensing device (5) and pressure responsive device (6) are connected with controller (10), the control Device (10) is connected with compressor (1) and throttling arrangement (4)；The temperature sensing device (5) is used to detect indoor heat exchanger outlet temperature T, and the pressure responsive device (6) is used to detect muffler Pressure P, the controller (10) are used to adjust compressor capacity output according to indoor heat exchanger outlet temperature T, reach temperature T Preset temperature, the aperture of throttling arrangement is adjusted according to indoor heat exchanger outlet temperature T and return-air pipe pressure P corresponding relation, is made Temperature T and return-air pipe pressure P corresponding relation reaches preset relation.
- 2. a kind of air-conditioner control system according to claim 1, it is characterised in that the controller (10) includes compressor control Molding block, for adjusting compressor capacity output according to indoor heat exchanger outlet temperature T, temperature T is set to reach preset temperature, specifically For：Indoor heat exchanger outlet temperature T is detected, judges indoor heat exchanger outlet temperature T's and the first temperature Ta and second temperature Tb Relation, if T>Ta, then compressor capacity output predetermined value is increased, is rejudged after continuing the t1 times；If Tb<T<Ta, then Control compressor capacity output constant, and rejudged after maintaining the t1 times；If T<Tb, then it is pre- to reduce compressor capacity output Definite value, and rejudged after maintaining the t1 times.
- 3. a kind of air-conditioner control system according to claim 1, it is characterised in that the controller (10) also includes throttling dress Control module is put, for adjusting opening for throttling arrangement according to indoor heat exchanger outlet temperature T and return-air pipe pressure P corresponding relation Degree, makes temperature T and return-air pipe pressure P corresponding relation reach preset relation, is specially：Calculate and satisfy corresponding to return-air pipe pressure P With temperature Tsat, indoor heat exchange is calculated using saturation temperature Tsat corresponding to indoor heat exchanger outlet temperature T and return-air pipe pressure P Device outlet superheat degree Tsh, Tsh=T-Tsat, judge to make a slip of the tongue temperature Tsh and the 3rd temperature Tc and the 4th temperature Td relation, If Tsh>Tc then increases throttling arrangement aperture predetermined value, and is rejudged after maintaining the t2 times；If Td<Tsh<Tc, then control Throttling arrangement aperture processed is constant, and is rejudged after maintaining the t2 times；If Tsh<Td, then reduce throttling arrangement aperture and make a reservation for Value, and rejudged after maintaining the t2 times.
- A kind of 4. air-conditioner control system according to claim 1, it is characterised in that the outdoor heat exchanger (2) be one or More than one, the indoor heat exchanger (3) is one or more than one, and the quantity of the temperature sensing device (5) is changed with the interior The quantity of hot device (3) is equal, when the quantity of temperature sensing device (5) is multiple, adjusts compressor capacity output, calculates all temperature-sensitives The average value of device detection temperature, utilize obtained average value regulation compressor capacity output, the throttling of every indoor heat exchanger The regulation of device aperture, the temperature detected respectively according to temperature sensing device at every indoor heat exchanger are corresponding with return-air pipe pressure Relation is adjusted.
- 5. according to a kind of any one of claim 1-4 air-conditioner control systems, it is characterised in that also including reversal valve (7), institute Reversal valve is stated to be connected between the compressor and the outdoor heat exchanger by tracheae, and the compressor and the interior Between heat exchanger, the pressure responsive device is fixed on the pipeline between indoor heat exchanger and reversal valve or is fixed on the commutation On pipeline between valve and the compressor.
- 6. a kind of air-conditioner control system according to claim 5, it is characterised in that the throttling arrangement (4) is swollen using electronics Swollen valve, the reversal valve (7) use four-way valve, and the temperature sensing device (5) uses temperature sensor, and the pressure responsive device (6) is adopted Use pressure sensor.
- A kind of 7. air conditioning control method applied to air-conditioner control system any one of claim 1-6, it is characterised in that Comprise the following steps：Step S1, indoor heat exchanger outlet temperature T is detected using temperature sensing device (5), and muffler pressure is detected using pressure responsive device (6) Power P；Step S2, controller (10) adjust compressor capacity according to indoor heat exchanger outlet temperature T and exported, and temperature T is reached pre- If temperature, the aperture of throttling arrangement is adjusted according to indoor heat exchanger outlet temperature T and return-air pipe pressure P corresponding relation, makes temperature Degree T and return-air pipe pressure P corresponding relation reaches preset relation.
- 8. a kind of air conditioning control method according to claim 7, it is characterised in that in step S2, gone out according to indoor heat exchanger The T regulation compressor capacity outputs of mouth temperature, make temperature T reach preset temperature, are specially：Step S2.1A, indoor heat exchanger outlet temperature T is detected, judge indoor heat exchanger outlet temperature T and the first temperature Ta and Two temperature Tb relation,Step S2.2Aa, if T>Ta, then increase compressor capacity output predetermined value, return to step S2.1A after continuing the t1 times；Step S2.2Ab, if Tb<T<Ta, then control compressor capacity output constant, and maintain return to step after the t1 times S2.1A；If step S2.2Ac T<Tb, then compressor capacity output predetermined value is reduced, and maintain return to step after the t1 times S2.1A。
- 9. a kind of air conditioning control method according to claim 7, it is characterised in that in step S2, gone out according to indoor heat exchanger The aperture of mouth temperature T and return-air pipe pressure P corresponding relation regulation throttling arrangement, makes temperature T is corresponding with return-air pipe pressure P to close System reaches preset relation, is specially：Step S2.1B, calculate saturation temperature Tsat corresponding to return-air pipe pressure P；Step S2.2B, calculated using saturation temperature Tsat corresponding to indoor heat exchanger outlet temperature T and return-air pipe pressure P indoor The heat exchanger exit degree of superheat Tsh, Tsh=T-Tsat；Step S2.3B, judge to make a slip of the tongue temperature Tsh and the 3rd temperature Tc and the 4th temperature Td relation；Step S2.4Ba, if Tsh>Tc then increases throttling arrangement aperture predetermined value, and maintains return to step after the t2 times S2.3B；Step S2.4Bb, if Td<Tsh<Tc, then control throttling arrangement aperture constant, and maintain return to step after the t2 times S2.3B；Step S2.4Bc, if Tsh<Td, then reduce throttling arrangement aperture predetermined value, and maintain return to step after the t2 times S2.3B。
- 10. a kind of air-conditioning, it is characterised in that including the air-conditioner control system any one of claim 1-6.
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| CN109323396B (en) * | 2018-09-30 | 2021-12-21 | 广东美的制冷设备有限公司 | Air conditioner and control method and device thereof |
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| JPH04356669A (en) * | 1991-06-03 | 1992-12-10 | Toshiba Corp | Air conditioner |
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