CN106871332B - One drag two split air conditioner control method and one drag two split air conditioner - Google Patents

One drag two split air conditioner control method and one drag two split air conditioner Download PDF

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Publication number
CN106871332B
CN106871332B CN201710004389.0A CN201710004389A CN106871332B CN 106871332 B CN106871332 B CN 106871332B CN 201710004389 A CN201710004389 A CN 201710004389A CN 106871332 B CN106871332 B CN 106871332B
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China
Prior art keywords
air
temperature
setting
conditioned
evaporator
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CN106871332A (en
Inventor
李敬胜
景延芹
连建春
杨文钧
王彩平
朱豪
康丽君
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Qingdao Haier Air Conditioner Gen Corp Ltd
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Qingdao Haier Air Conditioner Gen Corp Ltd
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Classifications

    • 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
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • 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
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • 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
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
    • 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
    • F24F11/00—Control or safety arrangements
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/56—Remote control
    • 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
    • F24F2140/20—Heat-exchange fluid temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/06—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the arrangements for the supply of heat-exchange fluid for the subsequent treatment of primary air in the room units
    • F24F3/065—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the arrangements for the supply of heat-exchange fluid for the subsequent treatment of primary air in the room units with a plurality of evaporators or condensers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Abstract

The present invention provides a kind of one drag two split air conditioner control method, comprising the following steps: air conditioner booting sets indoor air temperature in air conditioned building Tr；Set leaving air temp Two；By setting leaving air temp TwoWith setting indoor air temperature in air conditioned building TrThe setting coil temperature T of evaporator in corresponding air-conditioned room is set when calculating the corresponding setting leaving air tempa；The refrigerant of control evaporator outlet has certain degree of superheat so that indoor air temperature in air conditioned building reaches setting indoor air temperature in air conditioned building Tr；As the indoor air temperature in air conditioned building T of real-time detectionr1Reach setting indoor air temperature in air conditioned building TrWhen, controller detects temperature control according to the multiple spot of the evaporator in the correspondence air-conditioned room of real-time detection and evaporator is kept to have setting coil temperature Ta, air conditioner wind outlet air-supply, which has, sets leaving air temp Two.A kind of air conditioner with surplus indoor unit is also disclosed simultaneously.It may be implemented under conditions of infrequently start and stop compressor, so that the set temperature and leaving air temp in each air-conditioned room are held in ideal range.

Description

One drag two split air conditioner control method and one drag two split air conditioner
Technical field
The present invention relates to apparatus of air conditioning technical field more particularly to a kind of one drag two split air conditioner controlling parties Method and a kind of one drag two split air conditioner using the control method.
Background technique
So-called " one drag two " split air conditioner refers to and drives two indoor units to work using outdoor unit, from And make an air conditioner be equivalent to two air conditioners and use, the air conditioner room unit group and outdoor unit structure with it is commonly seperated Formula air conditioner is essentially identical, is a difference in that and increases an indoor units.
Common structure is single compressor structure in " one drag two " split air conditioner, i.e., installs in outdoor unit certain The compressor of discharge capacity, while driving two indoor units work.But when only opening an indoor unit, the power of compressor must It is so much larger than the requirement of indoor unit, the Energy Efficiency Ratio of air-conditioning system necessarily reduces.It is controlled in the prior art using electromagnetic expanding valve The flow for adjusting refrigerant automatically adjusts the flow of refrigerant by control system according to the hot humidity load in two rooms, realizes The optimal allocation of two room refrigerating capacitys and heating capacity.But since the ability of cooler compressor is same much larger than the thermic load in room When control system there are biggish hysteresis effects, so, after two room temperatures are set separately using remote controler in user, compression Chance due to two room indoor heat loads continuous variation and continuous start and stop, the temperature fluctuation in room are larger, the reality of user Border experience is bad.
In conclusion that there are start/stop of compressor frequencies is high for " one drag two " split air conditioner in the prior art, in room Temperature fluctuation is big and problem that user's real experiences are bad.
Summary of the invention
It is high to solve " one drag two " split air conditioner start/stop of compressor frequency in the prior art, the temperature fluctuation in room The problem for causing user's real experiences bad greatly, the invention discloses a kind of control methods of one drag two split air conditioner.
The present invention provides a kind of one drag two split air conditioner control method, comprising the following steps:
Air conditioner booting, sets indoor air temperature in air conditioned building Tr；
Set leaving air temp Two；
Pass through the setting leaving air temp TwoWith setting indoor air temperature in air conditioned building TrCalculate corresponding setting leaving air temp TwoIf Set the setting coil temperature T of the evaporator in corresponding air-conditioned rooma；
The refrigerant for controlling evaporator outlet has certain degree of superheat so that indoor air temperature in air conditioned building reaches setting air-conditioning Room temperature Tr；
As the indoor air temperature in air conditioned building T of real-time detectionr1Reach setting indoor air temperature in air conditioned building TrWhen, controller is according to real-time detection Correspondence air-conditioned room in evaporator multiple spot detection temperature control keep evaporator have setting coil temperature Ta；
Air conditioner wind outlet air-supply has setting leaving air temp Two。
Further, further comprising the steps of:
When evaporator keeps setting coil temperature T under the control of the controlleraAnd air outlet blows to have and sets out wind-warm syndrome Spend TwoAfterwards, controller is according to the room temperature T in the correspondence air-conditioned room of real-time detectionr1With setting indoor air temperature in air conditioned building TrDifference Value control indoor fan has wind speed setting, and air-conditioned room is kept to have setting indoor air temperature in air conditioned building TrWith setting leaving air temp Two。
Further, the temperature detecting point of the evaporator includes the capillary temperature sensor that evaporator inlet is arranged in, The coil temperature sensor of the evaporator heat exchange surface is set, and the extra heavy pipe temperature sensing of evaporator outlet is set Device, as the indoor air temperature in air conditioned building T of real-time detectionr1Reach setting indoor air temperature in air conditioned building TrWhen, controller controls in refrigeration system Compressor and/or electronic expansion valve events change the refrigerant flow in refrigeration cycle, so that the extra heavy pipe temperature of real-time detection passes The difference and/or extra heavy pipe temperature sensor and coil temperature sensor detection temperature of sensor and capillary temperature sensor detection temperature Within the set range, control keeps evaporator to have setting coil temperature T to the difference of degreea。
Further, coil temperature T is setaIt is calculated by the following formula Ta=Two- a(Tr-Two) b-c, wherein a is temperature Poor correction factor, b are wind speed correction factor, and c is to correct constant, 0.18 < a < 0.25, b=speed revolution value/1000, c=1.6 DEG C, The speed revolution value is setting indoor air temperature in air conditioned building T from being switched on to reachingrDynamic Wind Speed in the process.
Preferably, the temperature difference correction factor a is 0.2.
Further, the setting indoor air temperature in air conditioned building TrWith setting leaving air temp TwoSimultaneously by remote controler in booting Setting.
Further, the setting leaving air temp TwoIn the indoor air temperature in air conditioned building T of real-time detectionr1Reach setting air-conditioned room Between temperature TrIt is set afterwards by remote controler.
Further, the air-conditioned room includes the first air-conditioned room and the second air-conditioned room, in two air-conditioned rooms Set indoor air temperature in air conditioned building Ts1And Ts2, and setting leaving air temp Two1And Two2Independent setting, and the two-way for passing through controller The output electric signal holding of independent output terminals mouth is separately positioned on the first air-conditioned room and the evaporator of the second air-conditioned room is maintained at Corresponding setting coil temperature Ta1And Ta2。
Using one drag two split air conditioner control method disclosed in this invention, may be implemented to compress in infrequently start and stop Under conditions of machine, so that the set temperature and leaving air temp in each air-conditioned room are held in ideal range, adjust Cryogenic temperature afterwards is steady, has the advantages that regulating effect is good.
A kind of one drag two split air conditioner is also disclosed, is controlled by the following method:
Air conditioner booting, sets indoor air temperature in air conditioned building Tr；
Set leaving air temp Two；
Pass through the setting leaving air temp TwoWith setting indoor air temperature in air conditioned building TrCalculate corresponding setting leaving air temp TwoIf Set the setting coil temperature T of the evaporator in corresponding air-conditioned rooma；
The refrigerant for controlling evaporator outlet has certain degree of superheat so that indoor air temperature in air conditioned building reaches setting air-conditioning Room temperature Tr；
As the indoor air temperature in air conditioned building T of real-time detectionr1Reach setting indoor air temperature in air conditioned building TrWhen, controller is according to real-time detection Correspondence air-conditioned room in evaporator multiple spot detection temperature control keep evaporator have setting coil temperature Ta；
Air conditioner wind outlet air-supply has setting leaving air temp Two。
Air conditioner with surplus indoor unit disclosed in this invention may be implemented under conditions of infrequently start and stop compressor, so that often Set temperature and leaving air temp in one air-conditioned room are held in ideal range, and the cryogenic temperature after adjusting is steady, Have the advantages that regulating effect is good.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this hair Bright some embodiments for those of ordinary skill in the art without any creative labor, can be with It obtains other drawings based on these drawings.
Fig. 1 is the flow chart of the first embodiment of one drag two split air conditioner control method disclosed in this invention；
Fig. 2 is the flow chart of second of embodiment of one drag two split air conditioner control method disclosed in this invention；
Fig. 3 is the flow chart of the third embodiment of one drag two split air conditioner control method disclosed in this invention；
Fig. 4 is the flow chart of the 4th kind of embodiment of one drag two split air conditioner control method disclosed in this invention；
Fig. 5 is the structural schematic block diagram of one drag two split air conditioner disclosed in this invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
Shown in Figure 1 is a kind of process of embodiment of one drag two split air conditioner control method disclosed in this invention Figure.
Specifically, comprising the following steps:
After air conditioner booting, user sets ideal air-conditioning by IR remote controller or other similar long-range controls Room temperature.For the problem that in air conditioner with surplus indoor unit, temperature control is easy to appear fluctuation, in the present embodiment, add actively The control model of temperature of outlet air of air conditioner is set.It is reduced by the control to leaving air temp and passes through compressor adjusting refrigerant flow rate Frequency, further decrease the use power consumption of air-conditioning system, while improving comfort.In controlling party disclosed in this invention Air conditioner provides two different leaving air temp Setting patterns in method, can be with if user clearly requires leaving air temp The leaving air temp T of air conditioner is actively set by IR remote controllerwo.If user does not clearly require leaving air temp, System is automatically according to ideal indoor air temperature in air conditioned building, i.e., according to setting indoor air temperature in air conditioned building TrGenerate one matched ideal of setting Leaving air temp, i.e. setting leaving air temp Two。
The ideal indoor air temperature in air conditioned building T of setting is received in controllerrAfterwards, control instruction is generated.Usually in the controller It is previously provided with pid control module perhaps fuzzy control model or the pid control module being arranged in series and Fuzzy Control molding Block or the pid control module or fuzzy control model of the setting of other type combinations.Above-mentioned module is primarily referred to as certain control Algorithm processed, and with the matched detection sensor of control algolithm and input/output port.Pid algorithm and FUZZY ALGORITHMS FOR CONTROL are existing For control algolithm common in air-conditioning equipment.In the input terminal input setting indoor air temperature in air conditioned building T of above-mentioned various control modulerWith Actually detected room temperature Tr1, calculate actually detected room temperature Tr1Opposite input setting indoor air temperature in air conditioned building TrDeviation, It is based further on the basic control algolithm for constantly eliminating deviation between the two, electric signal control is exported by the output end of controller Compressor and electronic expansion valve events in air conditioner refrigeration cycle are protected to adjust the refrigerant flow in refrigerant circuit Holding refrigerant has certain degree of superheat in evaporator exit, so that the indoor air temperature in air conditioned building T of real-time detectionr1Reach and sets Determine indoor air temperature in air conditioned building Tr。
Setting indoor air temperature in air conditioned building T is adjusted to from setting indoor air temperature in air conditioned building is deviateed when bootingrAfterwards, controller starts to control According to setting leaving air temp TwoRegulating outlet air temperature sets leaving air temp TwoBy adjusting indoor unit coil temperature to setting Coil temperature TaIt realizes.Set coil temperature TaBy setting leaving air temp TwoWith setting indoor air temperature in air conditioned building TrIt calculates.Set disk Tube temperature degree TaCalculation basis be one according to long-term work practice in the formula summarized.Set coil temperature Ta=Two-a(Tr- Two) b-c, wherein a is temperature difference correction factor, and b is wind speed correction factor, and c is amendment constant.The temperature difference described herein, refers to Set indoor air temperature in air conditioned building TrWith setting leaving air temp TwoBetween difference.Wind speed is to be switched on from air conditioner to reaching setting air-conditioning Room temperature TrDynamic Wind Speed in the process.
In control method disclosed in the present embodiment, temperature difference correction factor and wind speed correction factor are immeasurable three cardinal guides Number.Wherein, the numerical value that temperature difference correction factor is chosen is between 0.18 to 0.25.Temperature difference correction factor is set primarily to pre- The tune stage will set indoor air temperature in air conditioned building TrWith setting leaving air temp TwoBetween the temperature difference caused by main error carry out it is preliminary Amendment avoids the initial reference value of control system from containing large error and by anti-so that the coil temperature of setting is more accurate Feedback constantly amplification, for common civil air conditioner, the difference between setting indoor air temperature in air conditioned building and setting leaving air temp is not Can be very big, usually between 2 DEG C to 3 DEG C, and it is no more than 5 DEG C.By long-term a large amount of experiment, temperature difference correction factor is preferably 0.2。
Wind speed correction factor controls the wind speed to be formed according to normal control mode in wind-warm syndrome out primarily to overcoming The deviation formed in degree control process, in the present embodiment, preferably setting wind speed correction factor is control room temperature Zi booting to head It is secondary to reach setting indoor air temperature in air conditioned building TrControl process in, the wind-speed gear of formation correspond to blower dynamic actual speed divided by 1000.Wind speed correction factor is one to be changed and variation and the dimensionless constant directly proportional in wind speed with wind speed.Simultaneously also into one Step is corresponding to choose a corrected parameter, to overcome this body structure of equipment bring error, corrected parameter in entire refrigeration cycle excellent It is selected as 1.6 DEG C.
Setting coil temperature T is being obtained by calculationaLater, controller is needed according to setting coil temperature TaDriving pressure Contracting machine or electronic expansion valve events adjust the refrigerant flow in refrigeration cycle.In the input terminal of controller, evaporator system is inputted Detected value of the temperature detection value of one-point or multi-point and evaporator outlet temperature as feedback, the conduct of controller on refrigerant line Controlled variable.In the present embodiment, three temperature detecting points are preferably provided with, that is, the capillary temperature sensing of evaporator inlet is set Device, the coil temperature sensor that evaporator heat exchange surface is set, and the extra heavy pipe temperature sensor of evaporator outlet is set. As the indoor air temperature in air conditioned building T of real-time detectionr1Reach setting indoor air temperature in air conditioned building TrWhen, controller controls the compression in refrigeration system Machine and electronic expansion valve events, by adjusting the flow of refrigerant, so that the extra heavy pipe temperature sensor and tubule temperature of real-time detection The difference of degree sensor detection temperature, the difference of extra heavy pipe temperature sensor and coil temperature sensor detection temperature or two groups Within the set range, control keeps evaporator to have setting coil temperature to difference, to reach the accurate control to leaving air temp System.Temperature detecting point is not limited to above three test point, can also be for mentioning examining for high control precision and integration detection parameter Consider, on the basis of above three test point, multiple temperature sensors are set on refrigerant flow path, form multiple temperature detections Point.
After running a period of time according to the leaving air temp of setting, evaporator keeps setting disk under the control of the controller Tube temperature degree TaAnd air outlet air-supply has setting leaving air temp Two, the temperature in air-conditioned room can be gradually deviated from setting air-conditioned room Temperature Tr, in order to avoid the temperature departure in air-conditioned room sets indoor air temperature in air conditioned building Tr, it is shown in Figure 3, in the present embodiment institute In disclosed control method, it is corrected adjusting by adjusting wind speed, so that indoor air temperature in air conditioned building returns setting air-conditioned room temperature Spend Tr.Specifically, when evaporator keeps setting coil temperature T under the control of the controlleraAnd air outlet is blown to have and be set out Air temperature TwoAfterwards, controller is according to the room temperature T in the correspondence air-conditioned room of real-time detectionr1With setting indoor air temperature in air conditioned building Tr Difference control indoor fan run according to wind speed setting.
For example, as real-time detection room temperature Tr1Lower than setting indoor air temperature in air conditioned building TrAnd difference belongs to first interval When, controller output control signal control room inner blower is run according to high wind speed, as real-time detection room temperature Tr1Lower than setting Indoor air temperature in air conditioned building TrAnd difference, when belonging to second interval, controller output control signal control room inner blower is transported according to middle wind speed Row, as real-time detection room temperature Tr1With setting indoor air temperature in air conditioned building TrWhen almost the same, the output end of controller exports telecommunications Number, control indoor fan is run according to low wind speed.The specific value of the wind speed of low- medium- high level can with it is usual in the prior art Rotation speed of fan is consistent, can also be carried out being adjusted no more than upper and lower 10% range according to the different model of blower, or by wind Machine wind-speed gear further refines.First interval, second interval and setting indoor air temperature in air conditioned building TrPreferably set in gradient, The upper limit threshold of first interval and the upper limit threshold of second interval and the upper limit threshold of second interval and setting air-conditioned room temperature Temperature difference between degree is equal, it is ensured that in certain gradient temperature section, rotation speed of fan changes in gradient.Temperature difference can To be 0.5 DEG C, 1 DEG C or 2 DEG C, can further be adjusted in a program according to the actual situation.
Air rate adjustment can be combined with pid algorithm or FUZZY ALGORITHMS FOR CONTROL, in conjunction with PID algorithm or FUZZY ALGORITHMS FOR CONTROL pair The adjusting of wind speed is consistent with control method in the prior art, is not described in detail herein.
It is shown in Figure 2, other than controlling leaving air temp by way of automatic or active control in booting, may be used also To reach setting indoor air temperature in air conditioned building TrActivly request opens the shaping modes of leaving air temp afterwards.Controller is receiving outlet air After the request signal of temperature shaping modes, start leaving air temp shaping modes, is calculated according to the calculation formula of setting coil temperature Coil temperature T is set outa, controller is according to setting coil temperature TaThe refrigerant flow in refrigeration cycle is adjusted, and to evaporate The practical coil temperature of device is maintained at setting coil temperature Ta, to comfortably be blown in air outlet.In the present embodiment, Three temperature detecting points chosen are identical as the temperature detecting point in above-described embodiment, the tune into after leaving air temp shaping modes Section process, parameter selection is also identical as the description of above-described embodiment, and details are not described herein.
In the leaving air temp T according to settingwoAfter running a period of time, for the purposes of avoiding the temperature in air-conditioned room inclined From setting indoor air temperature in air conditioned building Tr, it is shown in Figure 4, the process that adjusting is corrected by wind speed is also further devised, and The indoor air temperature in air conditioned building T so that actually detected is adjusted by wind speed correctionr1Return setting indoor air temperature in air conditioned building Tr.Specific wind speed Adjustment process is corrected referring to the detailed description of such as Fig. 3 and above-described embodiment.
In aforementioned four embodiment of the invention, air-conditioned room includes the first air-conditioned room and the second air-conditioned room, often Setting indoor air temperature in air conditioned building T in one air-conditioned rooms1And Ts2With setting leaving air temp Two1And Two2By different distant Control device is independently set.Electric signal is exported by two independent controllers or a controller two-way independent output terminals mouth to keep The first evaporator and the second evaporator for being separately positioned on the first air-conditioned room and the second air-conditioned room are maintained at independent setting Coil temperature Ta1And Ta2Operation.
It is shown in Figure 5, the first evaporator A01 being arranged in corresponding first air-conditioned room be provided with the first expansion valve A with The refrigerant flow entered in the first evaporator A01 is adjusted, the second evaporator A02 setting being arranged in corresponding second air-conditioned room There is the second expansion valve B to adjust the refrigerant flow entered in the second evaporator A02.For the first evaporator A01, first The temperature detecting point of evaporator A01 preferably include to be arranged in the first capillary temperature sensors A -1 of the first evaporator A01 entrance, The coil temperature sensor A-3 of first evaporator A01 heat exchange surface is set, and the outlet the first evaporator A01 is set Extra heavy pipe temperature sensor A-4.For the second evaporator A02, the temperature detecting point of the second evaporator A02 preferably includes to be arranged In the second capillary temperature sensor B-1 of the second evaporator A02 entrance, the coil pipe of the second evaporator A02 heat exchange surface is set Temperature sensor B-3, and the second extra heavy pipe temperature sensor B-4 of the outlet the second evaporator A02 is set.Compressor setting exists In outdoor unit.
Using one drag two split air conditioner control method disclosed in the aforementioned four embodiment of the present invention, may be implemented Infrequently under conditions of start and stop compressor, so that the set temperature and leaving air temp in each air-conditioned room are held at ideal In the range of, the cryogenic temperature after adjusting is steady, has the advantages that regulating effect is good.
The present invention discloses a kind of one drag two split air conditioners, using the air conditioner control as disclosed in above-described embodiment Method control processed, air-conditioner control method is referring to the detailed description of above-described embodiment, and details are not described herein, using above-described embodiment The air conditioner with surplus indoor unit that disclosed control method is controlled can achieve same technical effect.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features； And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and Range.

Claims (9)

1. one drag two split air conditioner control method, which comprises the following steps:
Air conditioner booting, sets indoor air temperature in air conditioned building Tr；
Set leaving air temp Two；
Pass through the setting leaving air temp TwoWith setting indoor air temperature in air conditioned building TrCalculate corresponding setting leaving air temp TwoSetting exists The setting coil temperature T of evaporator in corresponding air-conditioned rooma；
The refrigerant for controlling evaporator outlet has certain degree of superheat so that indoor air temperature in air conditioned building reaches setting air-conditioned room Temperature Tr；
As the indoor air temperature in air conditioned building T of real-time detectionr1Reach setting indoor air temperature in air conditioned building TrWhen, controller is according to pair of real-time detection Answering the multiple spot of the evaporator in air-conditioned room to detect temperature control keeps evaporator to have setting coil temperature Ta；
Air conditioner wind outlet air-supply has setting leaving air temp Two。
2. one drag two split air conditioner control method according to claim 1, which is characterized in that further include following step It is rapid:
When evaporator keeps setting coil temperature T under the control of the controlleraAnd air outlet air-supply has setting leaving air temp Two Afterwards, controller is according to the room temperature T in the correspondence air-conditioned room of real-time detectionr1With setting indoor air temperature in air conditioned building TrDifference control Indoor fan processed has wind speed setting, and air-conditioned room is kept to have setting indoor air temperature in air conditioned building TrWith setting leaving air temp Two。
3. one drag two split air conditioner control method according to claim 2, which is characterized in that the evaporator Temperature detecting point includes the capillary temperature sensor that evaporator inlet is arranged in, and the coil pipe of the evaporator heat exchange surface is arranged in Temperature sensor, and the extra heavy pipe temperature sensor of evaporator outlet is set, as the indoor air temperature in air conditioned building T of real-time detectionr1It reaches To setting indoor air temperature in air conditioned building TrWhen, controller controls compressor and/or electronic expansion valve events change system in refrigeration system Refrigerant flow in SAPMAC method, so that the difference of the extra heavy pipe temperature sensor of real-time detection and capillary temperature sensor detection temperature Within the set range, control keeps steaming the difference of value and/or extra heavy pipe temperature sensor and coil temperature sensor detection temperature Sending out device has setting coil temperature Ta。
4. one drag two split air conditioner control method according to any one of claims 1 to 3, which is characterized in that setting Coil temperature TaIt is calculated by the following formula Ta=Two- a(Tr-Two) b-c, wherein a is temperature difference correction factor, and b is wind speed amendment Coefficient, c are amendment constant, and 0.18 < a < 0.25, b=speed revolution value/1000, c=1.6 DEG C, the speed revolution value is to be switched on certainly extremely Reach setting indoor air temperature in air conditioned building TrDynamic Wind Speed in the process.
5. one drag two split air conditioner control method according to claim 4, which is characterized in that temperature difference amendment system Number a is 0.2.
6. one drag two split air conditioner control method according to claim 5, which is characterized in that the setting air-conditioned room Between temperature TrWith setting leaving air temp TwoIt is concurrently set in booting by remote controler.
7. one drag two split air conditioner control method according to claim 5, which is characterized in that described to set out wind-warm syndrome Spend TwoIn the indoor air temperature in air conditioned building T of real-time detectionr1Reach setting indoor air temperature in air conditioned building TrIt is set afterwards by remote controler.
8. one drag two split air conditioner control method according to claim 7, which is characterized in that the air-conditioned room packet Include the first air-conditioned room and the second air-conditioned room, the setting indoor air temperature in air conditioned building T in two air-conditioned roomss1And Ts2, and setting Leaving air temp Two1And Two2Independent setting, and electric signal holding is exported by the two-way independent output terminals mouth of controller and is set respectively The evaporator set in the first air-conditioned room and the second air-conditioned room is maintained at corresponding setting coil temperature Ta1And Ta2。
9. a kind of one drag two split air conditioner, which is characterized in that apply one drag two as claimed in any one of claims 1 to 8 Split air conditioner control method.
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