CN104654514A - Constant temperature dehumidification control method of air conditioner - Google Patents
Constant temperature dehumidification control method of air conditioner Download PDFInfo
- Publication number
- CN104654514A CN104654514A CN201310582386.7A CN201310582386A CN104654514A CN 104654514 A CN104654514 A CN 104654514A CN 201310582386 A CN201310582386 A CN 201310582386A CN 104654514 A CN104654514 A CN 104654514A
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- air
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- humidity
- indoor
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/20—Humidity
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Atmospheric Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention relates to a constant temperature dehumidification control method of an air conditioner. The method includes a compressor, a condenser, an outdoor fan, an evaporator, an indoor fan and an auxiliary electric heater. The method comprises the steps of A, enabling the air conditioner to enter a constant temperature dehumidification operation mode, starting the compressor and the auxiliary electric heater, and operating air conditioning system by a refrigerating circulating manner; B, detecting the indoor environmental humidity psi 1 through the air conditioner, and determining the difference to the set humidity psi 2; if the difference is not less than psi, entering step C; if the difference is less than psi, entering step D; C, controlling the indoor fan to rotate at medium rotating speed V, and keeping the auxiliary electric heater and the compressor running; D, controlling the indoor fan to run at a low rotating speed V1, and keeping the auxiliary electric heater and the compressor running; E, stopping the compressor when the indoor environmental temperature psi 1 is reduced to reach the set temperature psi 2, and controlling the indoor fan and the auxiliary electric heater to continuously run for a period of time T, and then stopping the air conditioner. The control method is simple; indoor constant temperature can be ensured while dehumidifying; in addition, the dehumidifying capacity can be increased, the power consumption of the air conditioner in dehumidifying can be decreased, and as a result, the operation efficiency of the air conditioner can be improved.
Description
Technical field
The present invention relates to a kind of control method of air-conditioner temperature-fixing dehumidifying, belong to technical field of air conditioner.
Background technology
Air-conditioner is when carrying out dehumidifying and running, air-conditioning system is all generally the method adopting running refrigerating to be discharged again by the condensation vapor of indoor environment, refrigeration and dehumidifying do not have the difference of essence, this method when such as rainy weather temperature be not very high but humidity, running refrigerating brings the reduction of temperature, can have a strong impact on the comfort level of user.
At present, in order to not reduce the object of room temperature while reaching dehumidifying, indoor machine evaporation uses dehumidifying magnetic valve, make that a part of evaporimeter carries out heating and another part evaporimeter freezes, but this method also can be brought and be difficult to obtain the shunting of good evaporimeter, affects efficiency, and owing to only having half to freeze so moisture removal can be very little, reaching certain moisture removal wasted work can be many, does not reach energy-efficient object.
Summary of the invention
Main purpose of the present invention is to solve the problem and deficiency, provides a kind of and can ensure indoor steady temperature while dehumidifying, reduces air-conditioner dehumidifying power consumption, improves the control method of the air-conditioner temperature-fixing dehumidifying of air-conditioner running efficiency.
For achieving the above object, technical scheme of the present invention is:
A control method for air-conditioner temperature-fixing dehumidifying, comprises compressor, condenser, outdoor fan, evaporimeter, indoor fan and electrical auxiliary heater, comprises the steps:
A, air-conditioner enter temperature-fixing dehumidifying operational mode, and compressor and electrical auxiliary heater start, and air-conditioning system is run by kind of refrigeration cycle;
B, air-conditioner sensing chamber environment humidity ψ
1, and judge and setting humidity ψ
2between difference, if indoor environment humidity ψ
1-setting humidity ψ
2>=ψ, to step C; If indoor environment humidity ψ
1-setting humidity ψ
2< ψ, to step D;
C, control room inner blower operate with middle gear rotating speed V, and electrical auxiliary heater and compressor keep running;
D, control room inner blower operate with low gear rotating speed V1, and electrical auxiliary heater and compressor keep running;
E, as indoor environment humidity ψ
1reduce and reach setting humidity ψ
2time, compressor shutdown, after control room inner blower and electrical auxiliary heater continue to run a period of time T, air-conditioner shuts down.
Further, in above-mentioned steps E, control room inner blower operates with high-grade rotating speed V2.
Further, in above-mentioned steps E, described time T is 20-30 second.
Further, in above-mentioned steps C process, when meeting indoor environment humidity ψ
1-setting humidity ψ
2during < ψ, enter step D.
Further, in above-mentioned steps C process, the open position controlling indoor set air-out guide plate is level.
Further, in above-mentioned steps D process, the open position controlling indoor set air-out guide plate is maximum air-out position.
Further, described indoor environment humidity ψ
1with setting humidity ψ
2difference ψ be preferably 20%.
Further, the middle gear rotating speed V of described indoor fan meets relational expression, middle gear rotating speed V=(low gear rotating speed V1+ high gear rotating speed V2)/2.
To sum up content, the control method of air-conditioner temperature-fixing dehumidifying of the present invention, control method is simple, when air-conditioner carries out refrigerated dehumidification, according to change conservative control electrical auxiliary heater, the indoor fan of indoor humidity, not only while dehumidifying, ensure indoor steady temperature, can also moisture removal be increased, reduce air-conditioner dehumidifying power consumption, improve the running efficiency of air-conditioner.
Accompanying drawing explanation
Fig. 1 is control flow chart of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing and detailed description of the invention, the present invention is described in further detail:
As shown in Figure 1, the control method of a kind of air-conditioner temperature-fixing dehumidifying provided by the present invention, its air-conditioner is made up of indoor set and off-premises station, and off-premises station comprises compressor, condenser, outdoor fan etc., and indoor set comprises evaporimeter, indoor fan etc.Also electrical auxiliary heater is provided with in indoor set, electrical auxiliary heater can adopt PTC heater element, also the electrical heating elements such as electric heating tube can be adopted, electrical auxiliary heater is arranged in the supply air duct of indoor set, generally be arranged on the position near evaporimeter, for wall-hanging indoor set, electrical auxiliary heater is arranged on the inner side of evaporimeter bending part.
The housing of indoor set is provided with air inlet and air outlet, and air outlet place is provided with horizontal air-out guide plate, for up-down adjustment air-out direction, is also provided with multiple longitudinal pendulum leaf, for left and right adjusting air-out direction in the inner side of the air-out guide plate of transverse direction.Horizontal air-out guide plate by be arranged on side step motor control its rotate up and down, stepper motor is controlled by the controller of indoor set.
Indoor set or remote controller are provided with the humidity sensor for sensing chamber's humidity, the indoor humidity value detected is sent to the controller of indoor set by humidity sensor in real time, control the start/stop time of compressor, indoor fan and electrical auxiliary heater and rotating speed etc. by controller according to the difference between indoor actual humidity value and setting humidity value, also control the opening angle of indoor set air-out guide plate with Time Controller.
Air-conditioner generally comprises refrigerating operaton, heating operation and dehumidification operating mode, when indoor environment temperature is not high but humidity is larger, user can start dehumidification mode and run, dehumidification mode can be divided into " common dehumidifying " and " fixed wet dehumidifying " two kinds of patterns, in order to not reduce indoor environment temperature when ensureing dehumidifying, operational mode that user can select " fixed wet dehumidifying ".
In the present embodiment, temperature-fixing dehumidifying operational mode adopts following control method, specifically comprises the steps:
A, user press " temperature-fixing dehumidifying " button, and select setting humidity ψ simultaneously
2value, air-conditioner enters temperature-fixing dehumidifying operational mode, compressor start, and electrical auxiliary heater also starts simultaneously, and air-conditioning system is run by kind of refrigeration cycle.
B, by the humidity sensor sensing chamber environment humidity ψ be arranged on indoor set or remote controller
1, and by this humidity
Value sends to the controller of indoor set, the indoor environment humidity ψ that reality detects by controller
1with setting humidity ψ
2judge, and counting chamber environment humidity ψ
1with setting humidity ψ
2between difference ψ.
If indoor environment humidity ψ
1-setting humidity ψ
2>=ψ, direct operating procedure C.
If indoor environment humidity ψ
1-setting humidity ψ
2< ψ, then direct operating procedure D.
C, as indoor environment humidity ψ
1-setting humidity ψ
2during>=ψ, control room inner blower operates with middle gear rotating speed V, and electrical auxiliary heater and compressor continue to keep running in the process.
Operationally, the rotating speed of indoor fan is broadly divided into three class to air conditioner room unit, and namely high-grade, middle-grade and low-grade, its medium-to-high grade rotating speed V2 is approximately 1200rpm, and low-grade rotating speed is approximately 900rpm, and the air-conditioning that this revolution value is different is different.
The principle of air conditioner dehumidification is that the hair fastener pipe of evaporimeter and fin are when reaching dew-point temperature, hydrogenesis Cheng Shui in air, this also becomes the latent cold of air conditioner refrigerating, when the air quantity of indoor fan is large, the temperature of hair fastener pipe and fin is higher, generally can decline, show through experiment although aobvious cold can promote cold of diving, indoor fan is under middle-grade rotating speed, and the moisture removal of evaporimeter is maximum.Therefore, in the present embodiment, preferably in the process, indoor fan operates with middle-grade rotating speed V, to increase moisture removal, the humidity of indoor environment is reduced as soon as possible, and through lot of experiment validation, middle-grade rotating speed V preferably meets following formula:
Middle gear rotating speed V=(low gear rotating speed V1+ high gear rotating speed V2)/2.
In the process, because the temperature of evaporimeter is lower, the open position controlling indoor set air-out guide plate is level, avoids cold wind directly to blow human body.
Along with the carrying out of dehumidifying, indoor humidity reduces gradually, when meeting indoor environment humidity ψ
1-setting humidity ψ
2during < ψ condition, proceed to step D and run.
D, as indoor environment humidity ψ
1-setting humidity ψ
2during < ψ, control room inner blower operates with low gear rotating speed V1, and electrical auxiliary heater and compressor continue to keep running in the process.
Because now ambient humidity and setting humidity are more or less the same, the moisture removal that user requires has not been very large, and air-conditioner forwards low wind state to, better to meet the demands, and can avoid that dehumidifying is excessive causes drying.
In the process, the open position controlling indoor set air-out guide plate is maximum air-out position.During due to low wind speed, the easy condensation of air-out guide plate, so be opened into maximum air-out state by air-out guide plate, time again because of low wind speed, the refrigerating capacity of air-conditioning is relatively little, and the heat of electrical auxiliary heater can balance cold completely, so air-out guide plate can be opened to maximum, blow and also can not feel cold with it.
E, as indoor environment humidity ψ
1continue reduction and reach setting humidity ψ
2time, control compressor shutdown, stop refrigeration, control room inner blower and electrical auxiliary heater continue to run a period of time T simultaneously, then control air-conditioner shutdown.
Because the fin of existing indoor machine evaporation adopts new aqueous aluminum foil mostly, the condensation produced during dehumidifying can adhere on an evaporator, if do not dry up need not be easy to for a long time mouldy, therefore, when indoor environment humidity reaches setting humidity, continue again to run indoor fan a period of time, and control room inner blower operates with high-grade rotating speed V2, to be dried up by moisture content within the shortest time.In the process, electrical auxiliary heater also continues to run a period of time, air conditioning exhausting not only can be avoided cool, also can accelerate the evaporation of moisture on evaporimeter.
In the present embodiment, time T is preferably 20-30 second, and wherein, optimum value is 30 seconds.
According to related experiment and experience, above-mentioned indoor environment humidity ψ
1with setting humidity ψ
2difference ψ be preferably 20%.
This temperature-fixing dehumidifying control method is simple, the operating cost of air-conditioner can not be increased, when air-conditioner carries out refrigerated dehumidification, according to change conservative control electrical auxiliary heater, the indoor fan of indoor humidity, not only while dehumidifying, ensure indoor steady temperature, can also moisture removal be increased, reduce air-conditioner dehumidifying power consumption, improve the running efficiency of air-conditioner.
As mentioned above, plan content given by reference to the accompanying drawings, can derive similar technical scheme.In every case be the content not departing from technical solution of the present invention, any simple modification done above embodiment according to technical spirit of the present invention, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (8)
1. a control method for air-conditioner temperature-fixing dehumidifying, comprise compressor, condenser, outdoor fan, evaporimeter, indoor fan and electrical auxiliary heater, it is characterized in that, the method comprises the steps:
A, air-conditioner enter temperature-fixing dehumidifying operational mode, and compressor and electrical auxiliary heater start, and air-conditioning system is run by kind of refrigeration cycle;
B, air-conditioner sensing chamber environment humidity ψ
1, and judge and setting humidity ψ
2between difference, if indoor environment humidity ψ
1-setting humidity ψ
2>=ψ, to step C; If indoor environment humidity ψ
1-setting humidity ψ
2< ψ, to step D;
C, control room inner blower operate with middle gear rotating speed V, and electrical auxiliary heater and compressor keep running;
D, control room inner blower operate with low gear rotating speed V1, and electrical auxiliary heater and compressor keep running;
E, as indoor environment humidity ψ
1reduce and reach setting humidity ψ
2time, compressor shutdown, after control room inner blower and electrical auxiliary heater continue to run a period of time T, air-conditioner shuts down.
2. the control method of air-conditioner temperature-fixing dehumidifying according to claim 1, is characterized in that: in above-mentioned steps E, and control room inner blower operates with high-grade rotating speed V2.
3. the control method of air-conditioner temperature-fixing dehumidifying according to claim 2, is characterized in that: in above-mentioned steps E, and described time T is 20-30 second.
4. the control method of air-conditioner temperature-fixing dehumidifying according to claim 1, is characterized in that: in above-mentioned steps C process, when meeting indoor environment humidity ψ
1-setting humidity ψ
2during < ψ, enter step D.
5. the control method of air-conditioner temperature-fixing dehumidifying according to claim 1, is characterized in that: in above-mentioned steps C process, and the open position controlling indoor set air-out guide plate is level.
6. the control method of the air-conditioner temperature-fixing dehumidifying according to claim 1 or 4, is characterized in that: in above-mentioned steps D process, and the open position controlling indoor set air-out guide plate is maximum air-out position.
7. the control method of air-conditioner temperature-fixing dehumidifying according to claim 1, is characterized in that: described indoor environment humidity ψ
1with setting humidity ψ
2difference ψ be preferably 20%.
8. the control method of air-conditioner temperature-fixing dehumidifying according to claim 1, is characterized in that: the middle gear rotating speed V of described indoor fan meets relational expression, middle gear rotating speed V=(low gear rotating speed V1+ high gear rotating speed V2)/2.
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|---|---|---|---|
| CN201310582386.7A CN104654514B (en) | 2013-11-19 | 2013-11-19 | The control method of air conditioner temperature-fixing dehumidifying |
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| CN104654514B CN104654514B (en) | 2017-10-13 |
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| CN105509401A (en) * | 2015-12-15 | 2016-04-20 | 珠海格力电器股份有限公司 | Refrigerating system, cold storage transportation truck and cold storage transportation control method |
| CN105890122A (en) * | 2016-05-31 | 2016-08-24 | 区登波 | Silkworm cultivation room inner temperature and humidity control method |
| CN106839202A (en) * | 2017-01-11 | 2017-06-13 | 广东美的制冷设备有限公司 | A kind of air-conditioner and its dehumanization method |
| CN107023961A (en) * | 2017-04-13 | 2017-08-08 | 青岛海尔空调器有限总公司 | A kind of air conditioner and control method |
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| CN111322722A (en) * | 2018-12-14 | 2020-06-23 | 青岛经济技术开发区海尔热水器有限公司 | Heat pump type air conditioner for improving defrosting and dehumidifying effects by utilizing electric auxiliary heat |
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| CN105890122A (en) * | 2016-05-31 | 2016-08-24 | 区登波 | Silkworm cultivation room inner temperature and humidity control method |
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| CN107178835B (en) * | 2017-06-12 | 2020-06-05 | 广东美的暖通设备有限公司 | Control method and control device for dehumidification of air conditioner and air conditioner |
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| CN110118418A (en) * | 2019-04-24 | 2019-08-13 | 宁波奥克斯电气股份有限公司 | A kind of auxiliary heat of air conditioner electric removes condensation control method and air conditioner |
| CN111720905B (en) * | 2020-06-04 | 2021-07-16 | 海信（广东）空调有限公司 | Control method of dehumidifier |
| CN111720905A (en) * | 2020-06-04 | 2020-09-29 | 海信（广东）空调有限公司 | Control method of dehumidifier |
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| CN112254297B (en) * | 2020-09-28 | 2022-09-06 | 青岛海尔空调器有限总公司 | Control method and device for air conditioner and air conditioner |
| CN112539528A (en) * | 2020-11-19 | 2021-03-23 | 青岛海尔空调器有限总公司 | Method and device for controlling dehumidification of air conditioner and air conditioner |
| CN114811886A (en) * | 2021-01-27 | 2022-07-29 | 北京小米移动软件有限公司 | Control method and device of air conditioner, air conditioner and storage medium |
| CN114811886B (en) * | 2021-01-27 | 2024-04-26 | 北京小米移动软件有限公司 | Air conditioner control method and device, air conditioner and storage medium |
| CN113983587A (en) * | 2021-11-30 | 2022-01-28 | 海信（广东）空调有限公司 | Air conditioner and dehumidification method thereof |
| CN115406044A (en) * | 2022-05-24 | 2022-11-29 | 珠海格力电器股份有限公司 | Constant-temperature dehumidification control method and device for air conditioner, computer equipment and air conditioner |
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