CN105066326A - Air conditioner control method and system and air conditioner - Google Patents
Air conditioner control method and system and air conditioner Download PDFInfo
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- CN105066326A CN105066326A CN201510416676.3A CN201510416676A CN105066326A CN 105066326 A CN105066326 A CN 105066326A CN 201510416676 A CN201510416676 A CN 201510416676A CN 105066326 A CN105066326 A CN 105066326A
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- indoor heat
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- pressure
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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
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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
- F24F2110/00—Control inputs relating to air properties
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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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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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
- F24F2140/00—Control inputs relating to system states
- F24F2140/50—Load
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- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
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- Air Conditioning Control Device (AREA)
Abstract
The invention relates to an air conditioner control system and method. The air conditioner control system comprises a compressor, an outdoor heat exchanger, an indoor heat exchanger, a throttling device, a temperature sensing device, a pressure sensing device and a controller, wherein the temperature sensing device is used for detecting the outlet temperature T of the indoor heat exchanger; the pressure sensing device is used for detecting the pressure P of an air return pipe; and the controller is used for adjusting the power output of the compressor according to the outlet temperature T of the indoor heat exchanger and adjusting the opening degree of the throttling device according to the corresponding relationship between the outlet temperature T of the indoor heat exchanger and the pressure P of the air return pipe. According to load changes, the power output is adjusted to improve the adaptive capacity of an indoor unit to the indoor environment, and dialing-up of a main control panel in the production process is avoided, so that the production time of a single indoor unit is shortened, the error rate is reduced, the production efficiency and the product quality are improved, and the risk of market complaints caused by mistakes or missing of power dialing-up is lowered.
Description
Technical field
The present invention relates to refrigeration technology field, particularly relate to a kind of air conditioning control method, system and air-conditioning.
Background technology
In prior art, need the dial-up indoor heat exchanger of not same horsepower being dialled to respective capabilities size, making outdoor heat exchanger identify indoor heat exchanger with this needs, asks and make corresponding output, ensureing that indoor heat exchanger has enough refrigerating capacitys.When occurring air-conditioning type selecting scarce capacity, or indoor load increases, and time effect is bad, cannot automatically adjustment capability export, to reach the actual demand of user.Manufacture needs carry out dial-up to every platform room heat exchanger machine, production efficiency is not high, and indoor heat exchanger type numerous also easily dial the wrong number or leak dial, cause indoor heat exchanger requirement capability and actual outdoor heat exchanger to export inconsistent.
Summary of the invention
Technical problem to be solved by this invention is for the deficiencies in the prior art, provides a kind of air conditioning control method, system and air-conditioning.Do not need by artificial settings such as dial-ups, according to the change of load, the output of regulating power, improve indoor set to the adaptive capacity of indoor environment, and production process is without the step of master control borad being carried out to dial-up, saves the production time of separate unit indoor set, reduces error rate, improve production efficiency and product quality, reduce because wrong group of ability dial-up or leakage are dialled and produced the risk complained in market.
The technical scheme that the present invention solves the problems of the technologies described above is as follows:
A kind of air-conditioner control system, comprises compressor, outdoor heat exchanger, indoor heat exchanger, throttling arrangement, temperature sensing device, pressure responsive device and controller; Described compressor, outdoor heat exchanger, indoor heat exchanger are connected to form refrigerating circuit by pipeline, described throttling arrangement is connected in the management between described outdoor heat exchanger and described indoor heat exchanger, described temperature sensing device is fixed on the exit of described indoor heat exchanger, described pressure responsive device is fixed in the pipeline between described indoor heat exchanger and described compressor, described temperature sensing device is connected with controller with pressure responsive device, and described controller is connected with compressor and throttling arrangement; Described temperature sensing device is used for heat exchanger outlet temperature T in sensing chamber, described pressure responsive device is for detecting muffler pressure P, described controller is used for regulating compressor capacity to export according to indoor heat exchanger outlet temperature T, temperature T is made to reach preset temperature, regulate the aperture of throttling arrangement according to the corresponding relation of indoor heat exchanger outlet temperature T and muffler pressure P, make the corresponding relation of temperature T and muffler pressure P reach preset relation.
The invention has the beneficial effects as follows: the present invention does not need by artificial settings such as dial-ups, by indoor set automatic decision indoor heat exchanger temperature, the output of adjustment outdoor compressor, in conjunction with the heat exchanger exit degree of superheat in throttling arrangement control room, guarantee system can by the actual load demand of indoor, carry out suitable output, avoid system only to follow intrinsic indoor set requirements set, and the change of indoor environment cannot be adapted to.Production process, without the step of master control borad being carried out to dial-up, saves the production time of separate unit indoor heat exchanger, also reduces error rate simultaneously, improves production efficiency and product quality, reduces because wrong group of ability dial-up or leakage are dialled and produced the risk complained in market.
On the basis of technique scheme, the present invention can also do following improvement.
Further, described controller comprises compressor control module, for regulating compressor capacity to export according to indoor heat exchanger outlet temperature T, temperature T is made to reach preset temperature, be specially: heat exchanger outlet temperature T in sensing chamber, judges the relation of indoor heat exchanger outlet temperature T and the first temperature Ta and the second temperature Tb, if T>Ta, then strengthen compressor capacity and export predetermined value, rejudge after continuing the t1 time; If Tb<T<Ta, then control compressor capacity and export constant, and rejudge after maintaining the t1 time; If T<Tb, then reduce compressor capacity and export predetermined value, and rejudge after maintaining the t1 time.
Adopt the beneficial effect of above-mentioned further scheme to be: automatic decision indoor heat exchanger outlet temperature T, and then regulate compressor capacity to export, detect and easily realize, easy to adjust.
Further, described controller also comprises throttling arrangement control module, for regulating the aperture of throttling arrangement according to the corresponding relation of indoor heat exchanger outlet temperature T and muffler pressure P, the corresponding relation of temperature T and muffler pressure P is made to reach preset relation, be specially: calculate the saturation temperature Tsat that muffler pressure P is corresponding, indoor heat exchanger outlet temperature T and saturation temperature Tsat corresponding to muffler pressure P is utilized to calculate indoor heat exchanger exit degree of superheat Tsh, Tsh=T-Tsat, to judge to make a slip of the tongue the relation of temperature Tsh and the 3rd temperature Tc and the 4th temperature Td, if Tsh>Tc, increase throttling arrangement aperture predetermined value, and rejudge after maintaining the t2 time, if Td<Tsh<Tc, then control throttling arrangement aperture constant, and rejudge after maintaining the t2 time, if Tsh<Td, then reduce throttling arrangement aperture predetermined value, and rejudge after maintaining the t2 time.
The beneficial effect of above-mentioned further scheme is adopted to be: the aperture regulating throttling arrangement according to the corresponding relation of indoor heat exchanger outlet temperature T and muffler pressure P, ensures further by making inner side actual load demand carry out suitable output.
Further, described outdoor heat exchanger is more than one or one, described indoor heat exchanger is more than one or one, the quantity of described temperature sensing device is equal with the quantity of described indoor heat exchanger, when the quantity of temperature sensing device is multiple, when regulating compressor capacity to export, calculate the mean value of all temperature sensing device detected temperatures, the mean value obtained is utilized to regulate compressor capacity to export, the adjustment of the throttling arrangement aperture of every platform indoor heat exchanger, the temperature detected according to every platform indoor heat exchanger place temperature sensing device respectively and the corresponding relation of muffler pressure regulate.
The beneficial effect of above-mentioned further scheme is adopted to be: to realize airconditioning control when indoor heat exchanger and outdoor heat exchanger are arbitrary quantity, and realize indoor heat exchanger outlet temperature T described in accurate Calculation, realize the accurate control of refrigeration.
Further, technique scheme also comprises reversal valve, described reversal valve is connected between described compressor and described outdoor heat exchanger by tracheae, and between described compressor and described indoor heat exchanger, described pressure responsive device is fixed on the pipeline between indoor heat exchanger and reversal valve or is fixed on the pipeline between described reversal valve and described compressor.
The beneficial effect of above-mentioned further scheme is adopted to be: when not comprising reversal valve, described system is single cooling system, when comprising reversal valve, described system is cooling/warming system, air conditioning control method of the present invention had both been applicable to single cooling system, was also suitable for cooling/warming system, applied widely.
Further, described throttling arrangement (4) adopts electric expansion valve, and described reversal valve (7) adopts cross valve, and described temperature sensing device (5) adopts temperature sensor, and described pressure responsive device (6) adopts pressure sensor.
A kind of air conditioning control method, comprise the steps: to utilize heat exchanger outlet temperature T in temperature sensing device sensing chamber, pressure responsive device is utilized to detect muffler pressure P, controller regulates compressor capacity to export according to indoor heat exchanger outlet temperature T, temperature T is made to reach preset temperature, regulate the aperture of throttling arrangement according to the corresponding relation of indoor heat exchanger outlet temperature T and muffler pressure P, make the corresponding relation of temperature T and muffler pressure P reach preset relation.
On the basis of technique scheme, the present invention can also do following improvement.
Further, regulate compressor capacity to export according to indoor heat exchanger outlet temperature T, make temperature T reach preset temperature, be specially:
Step S2.1A, heat exchanger outlet temperature T in sensing chamber, judges the relation of indoor heat exchanger outlet temperature T and the first temperature Ta and the second temperature Tb,
Step S2.2Aa, if T>Ta, then strengthens compressor capacity and exports predetermined value, return step S2.1A after continuing the t1 time;
Step S2.2Ab, if Tb<T<Ta, then controls compressor capacity and exports constant, and return step S2.1A after maintaining the t1 time;
If step S2.2Ac is T<Tb, then reduces compressor capacity and export predetermined value, and return step S2.1A after maintaining the t1 time.
Further, regulate the aperture of throttling arrangement according to the corresponding relation of indoor heat exchanger outlet temperature T and muffler pressure P, make the corresponding relation of temperature T and muffler pressure P reach preset relation, be specially:
Step S2.1B, calculates the saturation temperature Tsat that muffler pressure P is corresponding;
Step S2.2B, utilizes indoor heat exchanger outlet temperature T and saturation temperature Tsat corresponding to muffler pressure P to calculate indoor heat exchanger exit degree of superheat Tsh, Tsh=T-Tsat;
Step S2.3B, the relation of judge to make a slip of the tongue temperature Tsh and the 3rd temperature Tc and the 4th temperature Td;
Step S2.4Ba, if Tsh>Tc, increases throttling arrangement aperture predetermined value, and returns step S2.3B after maintaining the t2 time;
Step S2.4Bb, if Td<Tsh<Tc, then controls throttling arrangement aperture constant, and returns step S2.3B after maintaining the t2 time;
Step S2.4Bc, if Tsh<Td, then reduces throttling arrangement aperture predetermined value, and returns step S2.3B after maintaining the t2 time.
A kind of air-conditioning, comprises the air-conditioner control system described in above-mentioned arbitrary technical scheme.
Accompanying drawing explanation
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 exports concrete control method flow chart for compressor capacity in method described in the embodiment of the present invention 3;
Fig. 6 is the concrete control method flow chart of throttling arrangement in method described in the embodiment of the present invention 3.
Detailed description of the invention
Be described principle of the present invention and feature below in conjunction with accompanying drawing, example, only for explaining the present invention, is not intended to limit scope of the present invention.
Embodiment 1, as shown in Figure 1, 2, a kind of air-conditioner control system, comprises compressor 1, outdoor heat exchanger 2, indoor heat exchanger 3, throttling arrangement 4, temperature sensing device 5, pressure responsive device 6 and controller 10 (described temperature sensing device 5 is connected with described controller 10 by wireless mode or wired mode with pressure responsive device 6); Described compressor 1, outdoor heat exchanger 2, indoor heat exchanger 3 are connected to form refrigerating circuit by pipeline, described throttling arrangement 4 is connected between described outdoor heat exchanger 2 and described indoor heat exchanger 3, described temperature sensing device 5 is fixed on the exit of described indoor heat exchanger 3, described pressure responsive device 6 is fixed on the pipeline between described indoor heat exchanger 3 and described compressor 1, described temperature sensing device 5 is connected with controller 10 with pressure responsive device 6, and described controller 10 is connected with compressor 1 and throttling arrangement 4.Throttling arrangement 4 described in the present embodiment adopts electric expansion valve, and described reversal valve 7 adopts cross valve, and described temperature sensing device 5 adopts temperature sensor, and described pressure responsive device 6 adopts pressure sensor.
When described system does not comprise reversal valve 7, described system is single cooling system, and when comprising reversal valve 7, described system is cooling/warming system, and air conditioning control method of the present invention had both been applicable to single cooling system, is also suitable for cooling/warming system, applied widely.The present embodiment comprises reversal valve 7, described reversal valve 7 is connected between described compressor 1 and described outdoor heat exchanger 2 by tracheae, and between described compressor 1 and described indoor heat exchanger 3, described pressure responsive device 6 is fixed on the pipeline between indoor heat exchanger 3 and reversal valve 7 or is fixed on the pipeline between described reversal valve 7 and described compressor 1.
During running refrigerating pattern, refrigerant through compressor 1 compress after through overcompression machine blast pipe, reversal valve 7 and outdoor heat exchanger 2, indoor set throttling arrangement 4 is flow to respectively from liquid pipe 8 after heat release, indoor heat exchanger 3 is entered respectively after reducing pressure by regulating flow, get back to tracheae 9 after heat absorption evaporation, then enter compressor 1 along reversal valve 2 and compressor return air pipe.Fix a temperature sensing device 5 in indoor heat exchanger 3 outlet, tracheae 9 has a pressure responsive device 6.
Described temperature sensing device 5 is for detecting indoor heat exchanger 3 outlet temperature T, described pressure responsive device 6 is for detecting muffler pressure P, described controller 10 exports (specifically can show as the frequency of frequency-changeable compressor) for regulating the ability of compressor 1 according to indoor heat exchanger outlet temperature T, temperature T is made to reach preset temperature, regulate the aperture of throttling arrangement 4 according to the corresponding relation of indoor heat exchanger outlet temperature T and muffler pressure P, make the corresponding relation of temperature T and muffler pressure P reach preset relation.
Particularly, described controller 10 comprises compressor control module, for regulating compressor capacity to export according to indoor heat exchanger outlet temperature T, temperature T is made to reach preset temperature, be specially: heat exchanger outlet temperature T in sensing chamber, judges the relation of indoor heat exchanger outlet temperature T and the first temperature Ta and the second temperature Tb, if T>Ta, then strengthen compressor capacity and export predetermined value n%, rejudge after continuing the t1 time; If Tb<T<Ta, then control compressor capacity and export constant, and rejudge after maintaining the t1 time; If T<Tb, then reduce compressor capacity and export predetermined value n%, and rejudge after maintaining the t1 time.
Described controller 10 also comprises throttling arrangement control module, for regulating the aperture of throttling arrangement according to the corresponding relation of indoor heat exchanger outlet temperature T and muffler pressure P, makes the corresponding relation of temperature T and muffler pressure P reach preset relation, is specially:
Calculate the saturation temperature Tsat that muffler pressure P is corresponding, indoor heat exchanger outlet temperature T and saturation temperature Tsat corresponding to muffler pressure P is utilized to calculate indoor heat exchanger exit degree of superheat Tsh, Tsh=T-Tsat, to judge to make a slip of the tongue the relation of temperature Tsh and the 3rd temperature Tc and the 4th temperature Td, if Tsh>Tc, increase throttling arrangement aperture predetermined value △ P, and rejudge after maintaining the t2 time; If Td<Tsh<Tc, then control throttling arrangement aperture constant, and rejudge after maintaining the t2 time; If Tsh<Td, then reduce throttling arrangement aperture predetermined value △ P, and rejudge after maintaining the t2 time.
Embodiment 2, as shown in Figure 3, on the basis of embodiment 1, increase an indoor heat exchanger 3, be respectively the first indoor heat exchanger 31 and the second indoor heat exchanger 32, increase a throttling arrangement in the porch of the indoor heat exchanger of Zeng Jiaing simultaneously, a temperature sensing device is fixed in its exit, be first throttle device 41 at the throttling arrangement of the first indoor heat exchanger 31 porch, its exit be the first temperature sensing device 51, be the second throttling arrangement 42 at the throttling arrangement of the second indoor heat exchanger 32 porch, its exit be the second temperature sensing device 52.When regulating compressor capacity to export, calculate the mean value of all temperature sensing device detected temperatures, the mean value obtained is utilized to regulate compressor capacity to export, the adjustment of the throttling arrangement aperture of every platform indoor heat exchanger, the temperature detected according to every platform indoor heat exchanger place temperature sensing device respectively and the corresponding relation of muffler pressure regulate.The quantity of described indoor heat exchanger and corresponding throttling arrangement and temperature sensing device all can be greater than two, and described indoor heat exchanger all can open refrigeration, and partly can also open refrigeration, part is standby.
Embodiment 3, as shown in Figure 4, a kind of air conditioning control method, comprise the steps: to utilize heat exchanger outlet temperature T in temperature sensing device sensing chamber, utilize pressure responsive device to detect muffler pressure P, controller 10 regulates compressor capacity to export according to indoor heat exchanger outlet temperature T, makes temperature T reach preset temperature, regulate the aperture of throttling arrangement according to the corresponding relation of indoor heat exchanger outlet temperature T and muffler pressure P, make the corresponding relation of temperature T and muffler pressure P reach preset relation.
As shown in Figure 5, regulate compressor capacity to export according to indoor heat exchanger outlet temperature T, make temperature T reach preset temperature, be specially:
Step S2.1A, heat exchanger outlet temperature T in sensing chamber, judges the relation of indoor heat exchanger outlet temperature T and the first temperature Ta and the second temperature Tb,
Step S2.2Aa, if T>Ta, then strengthens compressor capacity and exports predetermined value n%, return step S2.1A after continuing the t1 time;
Step S2.2Ab, if Tb<T<Ta, then controls compressor capacity and exports constant, and return step S2.1A after maintaining the t1 time;
If step S2.2Ac is T<Tb, then reduces compressor capacity and export predetermined value n%, and return step S2.1A after maintaining the t1 time.
As shown in Figure 6, regulate the aperture of throttling arrangement according to the corresponding relation of indoor heat exchanger outlet temperature T and muffler pressure P, make the corresponding relation of temperature T and muffler pressure P reach preset relation, be specially:
Step S2.1B, calculates the saturation temperature Tsat that muffler pressure P is corresponding;
Step S2.2B, utilizes indoor heat exchanger outlet temperature T and saturation temperature Tsat corresponding to muffler pressure P to calculate indoor heat exchanger exit degree of superheat Tsh, Tsh=T-Tsat;
Step S2.3B, the relation of judge to make a slip of the tongue temperature Tsh and the 3rd temperature Tc and the 4th temperature Td;
Step S2.4Ba, if Tsh>Tc, increases throttling arrangement aperture predetermined value, and returns step S2.3B after maintaining the t2 time;
Step S2.4Bb, if Td<Tsh<Tc, then controls throttling arrangement aperture constant, and returns step S2.3B after maintaining the t2 time;
Step S2.4Bc, if Tsh<Td, then reduces throttling arrangement aperture predetermined value, and returns step S2.3B after maintaining the t2 time.
A kind of air-conditioning, comprise the air-conditioner control system described in above-mentioned arbitrary technical scheme, other existing parts repeat no more.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. an air-conditioner control system, is characterized in that, comprises compressor (1), outdoor heat exchanger (2), indoor heat exchanger (3), throttling arrangement (4), temperature sensing device (5), pressure responsive device (6) and controller (10);
Described compressor (1), outdoor heat exchanger (2), indoor heat exchanger (3) is connected to form refrigerating circuit by pipeline, described throttling arrangement (4) is connected in the pipeline between described outdoor heat exchanger (2) and described indoor heat exchanger (3), described temperature sensing device (5) is fixed on the exit of described indoor heat exchanger (3), described pressure responsive device (6) is fixed in the pipeline between described indoor heat exchanger (3) and described compressor (1), described temperature sensing device (5) is connected with controller (10) with pressure responsive device (6), described controller (10) is connected with compressor (1) and throttling arrangement (4),
Described temperature sensing device (5) is for heat exchanger outlet temperature T in sensing chamber, described pressure responsive device (6) is for detecting muffler pressure P, described controller (10) is for regulating compressor capacity to export according to indoor heat exchanger outlet temperature T, temperature T is made to reach preset temperature, regulate the aperture of throttling arrangement according to the corresponding relation of indoor heat exchanger outlet temperature T and muffler pressure P, make the corresponding relation of temperature T and muffler pressure P reach preset relation.
2. a kind of air-conditioner control system according to claim 1, it is characterized in that, described controller (10) comprises compressor control module, for regulating compressor capacity to export according to indoor heat exchanger outlet temperature T, temperature T is made to reach preset temperature, be specially: heat exchanger outlet temperature T in sensing chamber, judge the relation of indoor heat exchanger outlet temperature T and the first temperature Ta and the second temperature Tb, if T>Ta, then strengthen compressor capacity and export predetermined value, rejudge after continuing the t1 time; If Tb<T<Ta, then control compressor capacity and export constant, and rejudge after maintaining the t1 time; If T<Tb, then reduce compressor capacity and export predetermined value, and rejudge after maintaining the t1 time.
3. a kind of air-conditioner control system according to claim 1, it is characterized in that, described controller (10) also comprises throttling arrangement control module, for regulating the aperture of throttling arrangement according to the corresponding relation of indoor heat exchanger outlet temperature T and muffler pressure P, the corresponding relation of temperature T and muffler pressure P is made to reach preset relation, be specially: calculate the saturation temperature Tsat that muffler pressure P is corresponding, indoor heat exchanger outlet temperature T and saturation temperature Tsat corresponding to muffler pressure P is utilized to calculate indoor heat exchanger exit degree of superheat Tsh, Tsh=T-Tsat, to judge to make a slip of the tongue the relation of temperature Tsh and the 3rd temperature Tc and the 4th temperature Td, if Tsh>Tc, increase throttling arrangement aperture predetermined value, and rejudge after maintaining the t2 time, if Td<Tsh<Tc, then control throttling arrangement aperture constant, and rejudge after maintaining the t2 time, if Tsh<Td, then reduce throttling arrangement aperture predetermined value, and rejudge after maintaining the t2 time.
4. a kind of air-conditioner control system according to claim 1, it is characterized in that, described outdoor heat exchanger (2) is more than one or one, described indoor heat exchanger (3) is more than one or one, the quantity of described temperature sensing device (5) is equal with the quantity of described indoor heat exchanger (3), when the quantity of temperature sensing device (5) is multiple, when regulating compressor capacity to export, calculate the mean value of all temperature sensing device detected temperatures, the mean value obtained is utilized to regulate compressor capacity to export, the adjustment of the throttling arrangement aperture of every platform indoor heat exchanger, the temperature detected according to every platform indoor heat exchanger place temperature sensing device respectively and the corresponding relation of muffler pressure regulate.
5. a kind of air-conditioner control system according to any one of claim 1-4, it is characterized in that, also comprise reversal valve (7), described reversal valve is connected between described compressor and described outdoor heat exchanger by tracheae, and between described compressor and described indoor heat exchanger, described pressure responsive device is fixed on the pipeline between indoor heat exchanger and reversal valve or is fixed on the pipeline between described reversal valve and described compressor.
6. a kind of air-conditioner control system according to claim 5, it is characterized in that, described throttling arrangement (4) adopts electric expansion valve, and described reversal valve (7) adopts cross valve, described temperature sensing device (5) adopts temperature sensor, and described pressure responsive device (6) adopts pressure sensor.
7. be applied to an air conditioning control method for air-conditioner control system according to any one of claim 1-6, it is characterized in that, comprise the steps:
Step S1, utilizes heat exchanger outlet temperature T in temperature sensing device (5) sensing chamber, utilizes pressure responsive device (6) to detect muffler pressure P;
Step S2, controller (10) regulates compressor capacity to export according to indoor heat exchanger outlet temperature T, temperature T is made to reach preset temperature, regulate the aperture of throttling arrangement according to the corresponding relation of indoor heat exchanger outlet temperature T and muffler pressure P, make the corresponding relation of temperature T and muffler pressure P reach preset relation.
8. a kind of air conditioning control method according to claim 7, is characterized in that, in step S2, regulates compressor capacity to export, make temperature T reach preset temperature, be specially according to indoor heat exchanger outlet temperature T:
Step S2.1A, heat exchanger outlet temperature T in sensing chamber, judges the relation of indoor heat exchanger outlet temperature T and the first temperature Ta and the second temperature Tb,
Step S2.2Aa, if T>Ta, then strengthens compressor capacity and exports predetermined value, return step S2.1A after continuing the t1 time;
Step S2.2Ab, if Tb<T<Ta, then controls compressor capacity and exports constant, and return step S2.1A after maintaining the t1 time;
If step S2.2Ac is T<Tb, then reduces compressor capacity and export predetermined value, and return step S2.1A after maintaining the t1 time.
9. a kind of air conditioning control method according to claim 6, it is characterized in that, in step S2, regulate the aperture of throttling arrangement according to the corresponding relation of indoor heat exchanger outlet temperature T and muffler pressure P, make the corresponding relation of temperature T and muffler pressure P reach preset relation, be specially:
Step S2.1B, calculates the saturation temperature Tsat that muffler pressure P is corresponding;
Step S2.2B, utilizes indoor heat exchanger outlet temperature T and saturation temperature Tsat corresponding to muffler pressure P to calculate indoor heat exchanger exit degree of superheat Tsh, Tsh=T-Tsat;
Step S2.3B, the relation of judge to make a slip of the tongue temperature Tsh and the 3rd temperature Tc and the 4th temperature Td;
Step S2.4Ba, if Tsh>Tc, increases throttling arrangement aperture predetermined value, and returns step S2.3B after maintaining the t2 time;
Step S2.4Bb, if Td<Tsh<Tc, then controls throttling arrangement aperture constant, and returns step S2.3B after maintaining the t2 time;
Step S2.4Bc, if Tsh<Td, then reduces throttling arrangement aperture predetermined value, and returns step S2.3B after maintaining the t2 time.
10. an air-conditioning, is characterized in that, comprises the air-conditioner control system according to any one of claim 1-6.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107255306A (en) * | 2017-05-19 | 2017-10-17 | 海信（山东）空调有限公司 | A kind of Combined frequency-change air-conditioning and its control method |
| CN109323396A (en) * | 2018-09-30 | 2019-02-12 | 广东美的制冷设备有限公司 | Air conditioner and its control method and device |
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| CN103712309A (en) * | 2012-10-04 | 2014-04-09 | Tcl空调器(中山)有限公司 | Air-conditioner refrigerant flow control method |
| CN103486691A (en) * | 2013-09-17 | 2014-01-01 | 青岛海信日立空调系统有限公司 | Refrigerant flow control method and device for multi-connected air conditioning system |
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| CN107255306A (en) * | 2017-05-19 | 2017-10-17 | 海信（山东）空调有限公司 | A kind of Combined frequency-change air-conditioning and its control method |
| CN107255306B (en) * | 2017-05-19 | 2023-02-17 | 海信空调有限公司 | Combined variable frequency air conditioner and control method thereof |
| CN109323396A (en) * | 2018-09-30 | 2019-02-12 | 广东美的制冷设备有限公司 | Air conditioner and its control method and device |
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