CN104566768A - Control method of air conditioner and air conditioner - Google Patents

Control method of air conditioner and air conditioner Download PDF

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Publication number
CN104566768A
CN104566768A CN201310503343.5A CN201310503343A CN104566768A CN 104566768 A CN104566768 A CN 104566768A CN 201310503343 A CN201310503343 A CN 201310503343A CN 104566768 A CN104566768 A CN 104566768A
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China
Prior art keywords
air
water valve
ring
aperture
conditioner
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CN201310503343.5A
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Chinese (zh)
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CN104566768B (en
Inventor
迟亚玲
张燕清
李志海
高棋彬
何伟光
夏飞
程方慰
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Gree Electric Appliances Inc of Zhuhai
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Gree Electric Appliances Inc of Zhuhai
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Priority to CN201310503343.5A priority Critical patent/CN104566768B/en
Publication of CN104566768A publication Critical patent/CN104566768A/en
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Publication of CN104566768B publication Critical patent/CN104566768B/en
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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
    • F24F11/62—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
    • F24F11/30—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
    • F24F11/70—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
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
    • 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
    • F24F11/62—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
    • F24F11/63—Electronic processing
    • F24F11/65—Electronic processing for selecting an operating mode
    • 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
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
    • F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2221/00—Details or features not otherwise provided for
    • F24F2221/54—Heating and cooling, simultaneously or alternatively
    • 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

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Atmospheric Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Signal Processing (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The invention provides a control method of an air conditioner, which comprises the following steps: s1, detecting the return air temperature TRing (C)And the outlet air temperature TGo out(ii) a S2, judging the return air temperature TRing (C)And the outlet air temperature TGo outIf the difference value delta t is within the set range, the water valve actuator periodically adjusts the opening of the water valve according to a proportional form; otherwise, the opening K =100% of the water valve. And also relates to an air conditioner. According to the control method of the air conditioner and the air conditioner, the air supply temperature difference is detected, the opening degree of the water valve is adjusted to control the water flow, so that the air supply temperature difference is controlled, the requirement that the air supply temperature difference is not higher than 10 ℃ is met, and the requirement on the comfort level of a civil air conditioner is met.

Description

The control method of air-conditioner and air-conditioner
Technical field
The present invention relates to refrigerating field, particularly relate to a kind of control method and air-conditioner of air-conditioner.
Background technology
In prior art, energy-conservation stepless speed-regulating fan-coil air-conditioner can realize third gear speed-regulating function, but there is the defect that the leaving air temp difference of different gear is larger, especially the large supply air temperature when middle-grade air quantity little of low grade, should not higher than the requirement of 10 DEG C higher than being highly less than the room supply air temperature difference of 5m about air-supply in " heating and ventilation In Air Conditioning Design specification " " GBJ19-87 ", comfort level is poor.
Summary of the invention
In view of the present situation of prior art, the object of the present invention is to provide a kind of control method and air-conditioner of air-conditioner, by detecting supply air temperature difference, water adjusting valve aperture controls discharge, thus controls supply air temperature difference.For achieving the above object, technical scheme of the present invention is as follows:
A control method for air-conditioner, comprises the following steps:
S1, detects return air temperature T ringwith leaving air temp T go out;
S2, judges return air temperature T ringwith leaving air temp T go outdifference DELTA t whether at setting range, the if so, aperture of then water valve actuator proportionally form periodic adjustment water valve; Otherwise, the aperture K=100% of described water valve.
More preferably, in cooling mode, step S2 is specially:
As Δ t > 10 DEG C, described water valve actuator regulates the aperture of a water valve at interval of time h, and each reduction aperture Δ K, if when the aperture of described water valve reaches minimum aperture K1, described water valve stops action.
More preferably, in a heating mode, step S2 is specially:
As Δ t<-10 DEG C, described water valve actuator regulates the aperture of a water valve at interval of time h, and each minimizing aperture Δ K, if when the aperture of described water valve reaches minimum aperture K1, described water valve stops action.
More preferably, before step S2, also comprise air quantity regulating step, described air quantity regulating step is specially:
Work as T ring>=T ifduring+t, air quantity is high wind state;
Work as T if< T ring< T if+ t, air quantity is apoplexy state;
Work as T ring≤ T if, air quantity is low wind state;
Wherein, T iffor design temperature, t is setting constant.
More preferably, before step S2, also comprise air quantity regulating step, described air quantity regulating step is specially:
Work as T ring≤ T if-t, air quantity is high wind state;
Work as T if-t < T ring< T if, air quantity is apoplexy state;
Work as T if≤ T ring, air quantity is low wind state;
Wherein, T iffor design temperature, t is setting constant.
More preferably, the initial opening K of described water valve is 100%.
More preferably, described water valve is proportioning valve or servo valve.
Also relate to a kind of air-conditioner, comprise controller, the first temperature sensor, the second temperature sensor, blower fan, for the water valve of regulating water flow with for regulating the water valve actuator of described water valve aperture;
Described first temperature sensor is arranged on the air inlet of air-conditioner, for detecting return air temperature T ring;
Described second temperature sensor is arranged on the air outlet place of air-conditioner, for detecting air temperature T go out;
Described controller is electrically connected with described first temperature sensor, described second temperature sensor, described blower fan and described water valve actuator respectively, and described controller is for judging return air temperature T ringwith leaving air temp T go outdifference DELTA t control the aperture of described water valve actuator proportionally water valve described in form periodic adjustment when setting range.
More preferably, the rotating speed of described blower fan is divided into third gear from slow to fast, and be respectively low wind state, apoplexy state and high wind state, described controller is according to return air temperature T ringwith design temperature T ifthe change rotating speed that controls described blower fan switch between the rotating speed of described third gear.
More preferably, the rotating speed of described blower fan is divided into five grades from slow to fast, and be respectively ultralow wind state, low wind state, apoplexy state, high wind state and superelevation wind state, described controller is according to return air temperature T ringwith design temperature T ifthe change rotating speed that controls described blower fan switch between the rotating speed of described five grades.
The invention has the beneficial effects as follows:
The control method of air-conditioner of the present invention and air-conditioner, by detecting supply air temperature difference, water adjusting valve aperture controls discharge, thus controls supply air temperature difference, and reaching supply air temperature difference higher than the requirement of 10 DEG C, thus should not meet civil air condition comfort level demand.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of air-conditioner one embodiment of the present invention;
Fig. 2 is air quantity and leaving air temp tendency chart;
Fig. 3 is air quantity and cold graph of a relation.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the control method of air-conditioner of the present invention and air-conditioner are further elaborated.Should be appreciated that specific embodiment described herein only for explaining the present invention, being not intended to limit the present invention.
With reference to Fig. 1, air-conditioner one embodiment of the present invention comprises controller 3, first temperature sensor 1, second temperature sensor 2, blower fan 5, the water valve for regulating water flow and the water valve actuator 4 for water adjusting valve aperture, wherein, first temperature sensor 1 is arranged on the air inlet of air-conditioner, for detecting return air temperature T ring, the second temperature sensor 2 is arranged on the air outlet place of air-conditioner, for detecting air temperature T go out; Controller 3 is electrically connected with the first temperature sensor 1, second temperature sensor 2, blower fan 5 and water valve actuator 4 respectively, and controller 3 is for judging return air temperature T ringwith leaving air temp T go outdifference DELTA t in the aperture of setting range time control gate valve actuator 4 proportionally form periodic adjustment water valve.
More preferably, the rotating speed of blower fan 5 is divided into third gear from slow to fast, and be respectively low wind state (low wind shelves), apoplexy state (apoplexy shelves) and high wind state (high wind shelves), controller 3 is according to return air temperature T ringwith design temperature T ifthe change rotating speed that controls blower fan 5 switch between the rotating speed of third gear.The rotating speed of blower fan 5 also can be divided into five grades from slow to fast, be respectively ultralow wind state (ultralow wind shelves), low wind state (low wind shelves), apoplexy state (apoplexy shelves), high wind state (high wind shelves) and superelevation wind state (superelevation wind shelves), controller 3 is according to return air temperature T ringwith design temperature T ifthe change rotating speed that controls blower fan 5 switch between the rotating speed of five grades.Blower fan 5 can be alternating current generator, and the motor of blower fan 5 also can be the DC brushless motor of built-in driving, and water valve is proportioning valve or servo valve, and the initial opening K of water valve is 100%.
Air-conditioner, in control procedure, comprises the following steps:
S1, detects return air temperature T ringwith leaving air temp T go out;
S2, judges return air temperature T ringwith leaving air temp T go outdifference DELTA t whether at setting range, the if so, aperture of then water valve actuator 4 proportionally form periodic adjustment water valve; Otherwise, the aperture K=100% of described water valve.
Wherein, in cooling mode, step S2 is specially:
As Δ t > 10 DEG C, water valve actuator 4 regulates the aperture of a water valve at interval of time h, each reduces aperture Δ K, such as, after regulating the aperture of n water valve, then and the aperture K=100%-n Δ k of now water valve.If when the aperture of water valve reaches minimum aperture K1, described water valve stops action.
In a heating mode, step S2 is specially:
As Δ t<-10 DEG C, water valve actuator 4 regulates the aperture of a water valve at interval of time h, and each minimizing aperture Δ K, if when the aperture of water valve reaches minimum aperture K1, described water valve stops action.
More preferably, as a kind of embodiment, under refrigeration mode, before step S2, also comprise air quantity regulating step, namely adjust the rotating speed of blower fan 5, described air quantity regulating step is specially:
Work as T ring>=T ifduring+t, air quantity is high wind state; Work as T if< T ring< T ifduring+t, air quantity is apoplexy state; Work as T ring≤ T iftime, air quantity is low wind state; Wherein, T iffor design temperature, t is setting constant.
Under heating mode, before step S2, also comprise air quantity regulating step, described air quantity regulating step is specially:
Work as T ring≤ T ifduring-t, air quantity is high wind state; Work as T if-t < T ring< T iftime, air quantity is apoplexy state; Work as T if≤ T ringtime, air quantity is low wind state; Wherein, T iffor design temperature, t is setting constant.
Air-conditioner and the common air-conditioning device of above embodiment carry out contrast test, for the air-conditioner of nominal air delivery 680m3/h, specified cold 3500W, set environment temperature is dry bulb 25 DEG C, wet bulb 19.5 DEG C, in cooling mode, concrete correction data refers to following table, wherein, semen donors 1 is the semen donors of prior art air-conditioner, and leaving air temp 1 is the leaving air temp of prior art air-conditioner.Semen donors 2 is the semen donors of the present embodiment air-conditioner, and leaving air temp 2 is the leaving air temp of the present embodiment air-conditioner;
Air quantity (m3/h) Discharge (m3/h) Semen donors 1(W) Semen donors 2(W) Leaving air temp 1(DEG C) Leaving air temp 2(DEG C)
680 0.152 3337 3337 15.03 15.03
630 0.151 3159 3159 14.84 14.84
580 0.142 2980 2830 14.64 14.95
530 0.133 2793 2575 14.42 14.58
480 0.124 2596 2311 14.19 14.75
430 0.114 2384 2035 13.97 14.86
380 0.104 2177 1820 13.75 15.21
330 0.093 1943 1560 13.5 14.56
Air quantity in upper table and the tendency chart of leaving air temp are as shown in Figure 2, air quantity in upper table and cold graph of a relation are as shown in Figure 3, can clearly find out from figure, air-conditioner air-out leaving air temp under different air quantity of the present embodiment is comparatively stabilized in 14.5 DEG C ~ 15.5 DEG C scopes, make supply air temperature difference within the scope of 10.5 DEG C ~ 9.5 DEG C, comfort level demand can be met, and the air-conditioner of prior art can only ensure higher air quantity under leaving air temp satisfy the demands, and along with air quantity less, leaving air temp reduces, supply air temperature difference is made to have exceeded in civil air conditioner comfort level claimed range, comfort type is poor.
Usual evening, minimum load was 30% ~ 40% of peak load, specified refrigerating capacity is that the minimum cold of 3500W air-conditioner requirement is not less than 1400W, the air-conditioner of the present embodiment is along with the reduction of air quantity as seen from Figure 3, lower than the refrigerating capacity of common air-conditioning device under identical air quantity, but minimum air quantity refrigerating capacity is greater than 1500W, still can meet the user demand of conventional refrigeration duty, therefore design cold wind is than reasonable in design.The air-conditioner of the present embodiment can meet refrigeration demand equally while regulating water flow.
The control method of the air-conditioner of above embodiment and air-conditioner, by detecting supply air temperature difference, water adjusting valve aperture controls discharge, thus controls supply air temperature difference, and reaching supply air temperature difference higher than the requirement of 10 DEG C, thus should not meet civil air condition comfort level demand.
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.

Claims (10)

1. a control method for air-conditioner, is characterized in that, comprises the following steps:
S1, detects return air temperature T ringwith leaving air temp T go out;
S2, judges return air temperature T ringwith leaving air temp T go outdifference DELTA t whether at setting range, the if so, aperture of then water valve actuator proportionally form periodic adjustment water valve; Otherwise, the aperture K=100% of described water valve.
2. the control method of air-conditioner according to claim 1, is characterized in that:
In cooling mode, step S2 is specially:
As Δ t > 10 DEG C, described water valve actuator regulates the aperture of a water valve at interval of time h, and each reduction aperture Δ K, if when the aperture of described water valve reaches minimum aperture K1, described water valve stops action.
3. the control method of air-conditioner according to claim 1, is characterized in that:
In a heating mode, step S2 is specially:
As Δ t<-10 DEG C, described water valve actuator regulates the aperture of a water valve at interval of time h, and each minimizing aperture Δ K, if when the aperture of described water valve reaches minimum aperture K1, described water valve stops action.
4. the control method of air-conditioner according to claim 2, is characterized in that:
Before step S2, also comprise air quantity regulating step, described air quantity regulating step is specially:
Work as T ring>=T ifduring+t, air quantity is high wind state;
Work as T if< T ring< T if+ t, air quantity is apoplexy state;
Work as T ring≤ T if, air quantity is low wind state;
Wherein, T iffor design temperature, t is setting constant.
5. the control method of air-conditioner according to claim 3, is characterized in that:
Before step S2, also comprise air quantity regulating step, described air quantity regulating step is specially:
Work as T ring≤ T if-t, air quantity is high wind state;
Work as T if-t < T ring< T if, air quantity is apoplexy state;
Work as T if≤ T ring, air quantity is low wind state;
Wherein, T iffor design temperature, t is setting constant.
6. the control method of the air-conditioner according to any one of claim 1-5, is characterized in that:
The initial opening K of described water valve is 100%.
7. the control method of the air-conditioner according to any one of claim 1-5, is characterized in that:
Described water valve is proportioning valve or servo valve.
8. an air-conditioner, adopts the control method of the air-conditioner described in any one of claim 1-7, it is characterized in that:
Comprise controller, the first temperature sensor, the second temperature sensor, blower fan, for the water valve of regulating water flow with for regulating the water valve actuator of described water valve aperture;
Described first temperature sensor is arranged on the air inlet of air-conditioner, for detecting return air temperature T ring;
Described second temperature sensor is arranged on the air outlet place of air-conditioner, for detecting air temperature T go out;
Described controller is electrically connected with described first temperature sensor, described second temperature sensor, described blower fan and described water valve actuator respectively, and described controller is for judging return air temperature T ringwith leaving air temp T go outdifference DELTA t control the aperture of described water valve actuator proportionally water valve described in form periodic adjustment when setting range.
9. air-conditioner according to claim 8, is characterized in that:
The rotating speed of described blower fan is divided into third gear from slow to fast, and be respectively low wind state, apoplexy state and high wind state, described controller is according to return air temperature T ringwith design temperature T ifthe change rotating speed that controls described blower fan switch between the rotating speed of described third gear.
10. air-conditioner according to claim 8, is characterized in that:
The rotating speed of described blower fan is divided into five grades from slow to fast, and be respectively ultralow wind state, low wind state, apoplexy state, high wind state and superelevation wind state, described controller is according to return air temperature T ringwith design temperature T ifthe change rotating speed that controls described blower fan switch between the rotating speed of described five grades.
CN201310503343.5A 2013-10-23 2013-10-23 Control method of air conditioner and air conditioner Active CN104566768B (en)

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CN106705390A (en) * 2017-03-21 2017-05-24 广州市天园科技有限公司 Fan coil self-adaptive energy saving control device and method
CN106766020A (en) * 2017-03-21 2017-05-31 广州市天园科技有限公司 Fan coil adaptive controller and method based on direct current brushless motor
CN107178835A (en) * 2017-06-12 2017-09-19 广东美的暖通设备有限公司 Control method, control device and the air conditioner of air conditioner dehumidifying
CN107621045A (en) * 2017-10-23 2018-01-23 广东美的暖通设备有限公司 Control method, air conditioner and the computer-readable recording medium of air conditioner
CN107631437A (en) * 2017-09-26 2018-01-26 湖北中航安智技术有限公司 A kind of fan coil control on demand system and its control method
CN107906686A (en) * 2017-11-16 2018-04-13 珠海格力电器股份有限公司 Air conditioner fan rotating speed control method and air conditioner system
CN108302722A (en) * 2017-07-17 2018-07-20 珠海格力电器股份有限公司 Air conditioner and partial load control method and device thereof
CN109282370A (en) * 2018-10-29 2019-01-29 福建天佐环境科技有限公司 The cooling system and its control method of outdoor machine of air-conditioner
CN109506332A (en) * 2018-10-15 2019-03-22 平安科技（深圳）有限公司 Wind speed control method, device and the electronic equipment of air-conditioning system
CN110107995A (en) * 2019-05-14 2019-08-09 珠海格力电器股份有限公司 Control method, device and system for auxiliary heating of variable air volume tail end
CN110671777A (en) * 2019-10-21 2020-01-10 宁波奥克斯电气股份有限公司 Control method and device of air conditioner and air conditioner
CN112944415A (en) * 2021-02-24 2021-06-11 广东积微科技有限公司 Kitchen air conditioner and control method thereof
CN114604057A (en) * 2022-03-22 2022-06-10 陕西泰德汽车空调有限公司 Method for controlling uniformity and linearity of temperature of HVAC (heating, ventilating and air conditioning) air outlet
CN116045468A (en) * 2022-12-08 2023-05-02 珠海格力电器股份有限公司 Control method and device of fresh air system, fresh air system and storage medium

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