CN104633837A - Dehumidification control method for air conditioner - Google Patents
Dehumidification control method for air conditioner Download PDFInfo
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- CN104633837A CN104633837A CN201310567626.6A CN201310567626A CN104633837A CN 104633837 A CN104633837 A CN 104633837A CN 201310567626 A CN201310567626 A CN 201310567626A CN 104633837 A CN104633837 A CN 104633837A
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- air
- temperature
- low
- conditioner
- dehumidification
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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
- F24F11/70—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
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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
- 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
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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
- F24F11/70—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
- F24F11/70—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
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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
- F24F11/62—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
- F24F11/64—Electronic processing using pre-stored data
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- 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 invention provides a dehumidification control method for an air conditioner. The dehumidification control method includes the following steps that an indoor draught fan of the air conditioner runs, and wet air in the environment enters an indoor unit of the air conditioner; an evaporator of the air conditioner cools and dehumidifies the wet air entering the indoor unit so that low-temperature and low-humidity air can be formed; an auxiliary electric heater of the air conditioner runs and heats the low-temperature and low-humidity air, and heated low-humidity air is formed; the heated low-humidity air is exhausted to the environment. According to the dehumidification control method for the air conditioner, the auxiliary electric heater is started in a dehumidification mode, the auxiliary electric heater can control the temperature of the dehumidified air, thus, the evaporator can conduct effective dehumidification without balancing temperature drop generated by dehumidification, and the dehumidification efficiency of the air conditioner can be improved on the premise that the temperature of the dehumidified air is controlled.
Description
Technical field
The present invention relates to air-conditioning technique field, more specifically, relate to a kind of dehumidification control method of air-conditioner.
Background technology
Under the environment that humidity is higher simultaneously at lower temperature (as 18 ~ 25 DEG C), the plum rain season that the such as middle and lower reach of Yangtze River and coastal region etc. are local, clothing is difficult to dry, and furniture is moist, and human body is uncomfortable, even causes multiple mycotic infection and causes disease.Now, user expects air-conditioner not blowing cold air when dehumidifying, and even blows out warm wind.
In prior art, the existing air-conditioner with constant-temperature dehumidifying function.Air-conditioner in the prior art mainly realizes constant temperature dehumidification by increasing electronics two-port valve in indoor.This kind of mode take into account energy-conservation demand, but also there is larger shortcoming: electronics two-port valve goes to toward needing 2/3 even more evaporimeter to be used for balancing the temperature drop dehumidifying and produce, and the evaporator section effectively dehumidified only has 1/3 even less, therefore dehumidification rate is lower.
Summary of the invention
Object is the dehumidification control method providing a kind of air-conditioner, improves the dehumidification rate of air-conditioner under being intended to the prerequisite controlled the temperature of air after dehumidifying.
For realizing above object, the invention provides a kind of dehumidification control method of air-conditioner, dehumidification control method comprises the steps: that the indoor fan of air-conditioner runs, and makes the humid air of environment enter the indoor set of air-conditioner; The evaporimeter of air-conditioner forms low temperature and low humidity air to the humid air cool-down dehumidification entering indoor set; The electrical auxiliary heater of air-conditioner runs, and adds the rear low-humidity air of thermosetting heating to low temperature and low humidity air; Low-humidity air after environmental emission heating.
Further, after dehumidification control method also comprises the steps: to control heating, the temperature of low-humidity air reaches predetermined temperature.
Further, predetermined temperature equals the temperature of humid air; Or predetermined temperature is greater than the temperature of humid air; Or predetermined temperature is less than the temperature of humid air.
Further, electrical auxiliary heater is Variable power electric heater, and the step that after controlling heating, the temperature of low-humidity air reaches predetermined temperature comprises: the heating power controlling electrical auxiliary heater.
Further, the compressor of air-conditioner is frequency-changeable compressor, and the step that after controlling heating, the temperature of low-humidity air reaches predetermined temperature comprises: the operating frequency controlling compressor.
Further, electrical auxiliary heater is Variable power electric heater, the compressor of air-conditioner is frequency-changeable compressor, and the step that after controlling heating, the temperature of low-humidity air reaches predetermined temperature comprises: control the heating power of electrical auxiliary heater and control the operating frequency of compressor.
Further, the step that after controlling heating, the temperature of low-humidity air reaches predetermined temperature comprises: the heating power first controlling electrical auxiliary heater, controls the operating frequency of compressor again after the heating power of electrical auxiliary heater reaches control limit.
Further, the step that after controlling heating, the temperature of low-humidity air reaches predetermined temperature comprises: the rotating speed of control room inner blower.
According to the dehumidification control method of air-conditioner of the present invention, can realize being controlled the temperature of air after dehumidifying by electrical auxiliary heater by opening electrical auxiliary heater under dehumidification mode, thus, the temperature drop that evaporimeter effectively can dehumidify and produce without the need to balance dehumidifying, thus the dehumidification rate improving air-conditioner under the prerequisite that the temperature of air after dehumidifying is controlled can be realized.
Accompanying drawing explanation
The accompanying drawing forming a part of the present invention is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the system schematic of the air-conditioner of the dehumidification control method being suitable for the air-conditioner adopting the embodiment of the present invention;
The dehumidification process schematic diagram of Fig. 2 is the air-conditioner of dehumidification control method that is suitable for the air-conditioner adopting the embodiment of the present invention when being Split wall-mounted type air conditioner indoor set;
Fig. 3 is the psychrometric chart that the constant temperature dehumidification in the dehumidification control method of the air-conditioner of the embodiment of the present invention controls;
Fig. 4 is the psychrometric chart of the intensification Dehumidification controlling in the dehumidification control method of the air-conditioner of the embodiment of the present invention;
Fig. 5 is the psychrometric chart that the cool-down dehumidification in the dehumidification control method of the air-conditioner of the embodiment of the present invention controls.
Detailed description of the invention
Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.It should be noted that, when not conflicting, the embodiment in the present invention and the feature in embodiment can combine mutually.
The indoor set of air-conditioner is when dehumidifying operation, and required cold has two parts: the latent heat producing condensation water, and this is the live part of dehumidifying; Cause the sensible heat part that air themperature reduces in addition, sensible heat part can cause indoor environment temperature to reduce.Technical scheme of the present invention can be offset sensible heat part at least partly and indoor environment temperature be reduced to the impact produced.This is (18 ~ 25 DEG C that mention in as background) in indoor low temperature situation, are very favourable to the comfortableness of raising user.
The dehumidification control method of air-conditioner of the present invention comprises the steps: that the indoor fan of air-conditioner runs makes the humid air of environment enter the indoor set of air-conditioner; The evaporimeter of air-conditioner forms low temperature and low humidity air to the humid air cool-down dehumidification entering indoor set; The electrical auxiliary heater of air-conditioner runs and adds the rear low-humidity air of thermosetting heating to low temperature and low humidity air; Low-humidity air after environmental emission heating.
Electrical auxiliary heater (there is in part air-conditioner electrical auxiliary heater that just open in a heating mode) is increased in air-conditioner, under the dehumidification mode of air-conditioner, open electrical auxiliary heater, sensible heat part during dehumidifying can be offset at least partly, through the air of evaporator reducing temperature and humidity, when flowing through electrical auxiliary heater, relatively can improve the temperature of air.Therefore, according to the dehumidification control method of air-conditioner of the present invention, can realize being controlled the temperature of air after dehumidifying by electrical auxiliary heater by opening electrical auxiliary heater under dehumidification mode, further, the temperature drop that evaporimeter effectively can dehumidify and produce without the need to balance dehumidifying, thus the dehumidification rate improving air-conditioner under the prerequisite that the temperature of air after dehumidifying is controlled can be realized.
Fig. 1 is the system schematic of the air-conditioner of the dehumidification control method being suitable for the air-conditioner adopting the embodiment of the present invention.
This air-conditioner comprises compressor 1, evaporimeter 2 as indoor set heat exchanger, electric expansion valve 3, condenser 4, cross valve 5, outdoor fan 6, electrical auxiliary heater 7 and indoor fan 8 as outdoor unit heat exchanger.Wherein, compressor 1, evaporimeter 2, electric expansion valve 3, condenser 4 are connected by refrigerant pipeline with cross valve 5.
Below for the dehumidification control method being with the Split type wall-hanging machine of electrical auxiliary heater that air-conditioner of the present invention is described.
The dehumidification process schematic diagram of Fig. 2 is the air-conditioner of dehumidification control method that is suitable for the air-conditioner adopting the embodiment of the present invention when being Split wall-mounted type air conditioner indoor set.Under dehumidification mode, indoor fan 8 is opened, and the humid air of environment is sucked indoor set by the gas access 91 of housing 9.When humid air is by evaporimeter 2, evaporimeter 2 absorbs the heat of humid air, and while humid air temperature reduces, part steam is wherein condensed into water droplet, and water droplet is discharged through the drain pan of air-conditioner, and therefore, humid air is by becoming low temperature and low humidity air after evaporimeter 2.Low temperature and low humidity air flows further, heats through the defeated electric heater 7 that helps, and temperature raises, and after heating, low-humidity air enters environment through indoor fan 8 from air outlet slit 92.
There is the participation of electrical auxiliary heater 7, the temperature of low-humidity air after heating can have been controlled as predetermined temperature.Wherein, predetermined temperature can equal the temperature of humid air to realize constant temperature dehumidification control; The temperature that also can be greater than humid air realizes rising wet Dehumidification controlling; Or the temperature that can be less than humid air realizes cool-down dehumidification and controls.
Fig. 3 is the psychrometric chart that the constant temperature dehumidification in the dehumidification control method of the air-conditioner of the embodiment of the present invention controls.In this psychrometric chart, abscissa represents air humidity d, and ordinate represents the enthalpy h of air, and the curve curve of a point and c point place (in figure 3 i.e.) being labeled as t=const represents the thermoisopleth under environment temperature.
As shown in Figure 3, a point can represent the humid air just having entered indoor set.The low temperature and low humidity air of b point representative after evaporator 2 cool-down dehumidification, process from a point to point b is also subtract enthalpy process simultaneously.Low-humidity air after the heating of c point representative after electrical auxiliary heater 7 heats.Wherein, c point has dropped on the thermoisopleth at a point place, and after heating, low-humidity air has identical temperature with both humid air.That is, can dehumidify under the condition not changing environment temperature under constant temperature dehumidification controls.
After can realizing heating by different control devices, the temperature of low-humidity air controls.
When electrical auxiliary heater is Variable power electric heater, the step that after controlling heating, the temperature of low-humidity air reaches predetermined temperature can comprise the heating power controlling electrical auxiliary heater.Heating power is higher, and after heating, the temperature of low-humidity air is also higher.
When the compressor of air-conditioner is frequency-changeable compressor, the step that after controlling heating, the temperature of low-humidity air reaches predetermined temperature can comprise the operating frequency controlling compressor.Operating frequency is lower, and after heating, the temperature of low-humidity air is also higher.
If in air-conditioner, electrical auxiliary heater is Variable power electric heater, simultaneously the compressor of air-conditioner is frequency-changeable compressor, then the step that after controlling heating, the temperature of low-humidity air reaches predetermined temperature can comprise the heating power controlling electrical auxiliary heater and the operating frequency controlling compressor simultaneously.In the case more preferably, first control the heating power of electrical auxiliary heater, after the heating power of electrical auxiliary heater reaches control limit, control the operating frequency of compressor again.
Can be that the cold in dehumidification process derives from evaporimeter by the temperature controlled reason regulating the power of compressor frequency and/or electrical auxiliary heater to carry out heating rear low-humidity air, origin of heat is in electrical auxiliary heater.And preferentially regulate the power of electrical auxiliary heater, the temperature of the rear low-humidity air of heating can be changed under the condition not changing moisture removal, thus can dehumidification rate be ensured.If electrical auxiliary heater can't reach the temperature control requirement of the rear low-humidity air of heating under the condition of peak power, just consider suitably to carry out frequency reducing operation to compressor, operate to be actually and exchange the comfortableness of user because carry out frequency reducing to compressor for dehumidification rate.
In addition, the step that after controlling heating, the temperature of low-humidity air reaches predetermined temperature can also comprise the rotating speed of control room inner blower.The amount of the humid air entering indoor set and the flowing velocity of humid air can be controlled by the rotating speed of control room inner blower, therefore, the heat time of low temperature and low humidity air can be controlled, thus the temperature of low-humidity air after heating is controlled.The rotating speed of indoor fan is lower, and after heating, the temperature of low-humidity air is also higher.
Fig. 4 is the psychrometric chart of the intensification Dehumidification controlling in the dehumidification control method of the air-conditioner of the embodiment of the present invention.With Fig. 3 unlike low-humidity air after the heating of, c ' some representative after electrical auxiliary heater 7 heats.Wherein, c ' point has dropped on the thermoisopleth at a point place, and after heating, low-humidity air has higher temperature compared with humid air.That is, can dehumidify under the condition raising environment temperature under intensification Dehumidification controlling.
Fig. 5 is the psychrometric chart that the cool-down dehumidification in the dehumidification control method of the air-conditioner of the embodiment of the present invention controls.With Fig. 3 unlike, c " low-humidity air after the heating of some representative after electrical auxiliary heater 7 heats.Wherein, c " point has dropped under the thermoisopleth at a point place, after heating, low-humidity air has lower temperature compared with humid air, but c " temperature put is higher compared with the temperature of the low temperature and low humidity air after evaporator 2 cool-down dehumidification representated by b point.That is, can dehumidify under the condition suitably reducing environment temperature under cool-down dehumidification controls.
Be not only applicable to wall-hanging air conditioner with the dehumidification control method of means for air conditioner, be also applicable to the cabinet air-conditioner being provided with electrical auxiliary heater.
As can be seen from above description, embodiments of the invention achieve following technique effect:
Can realize being controlled the temperature of air after dehumidifying by electrical auxiliary heater by opening electrical auxiliary heater under dehumidification mode, thus, the temperature drop that evaporimeter effectively can dehumidify and produce without the need to balance dehumidifying, thus the dehumidification rate improving air-conditioner under the prerequisite that the temperature of air after dehumidifying is controlled can be realized.
Further, by opening electrical auxiliary heater and regulate its input power and compressor frequency etc. to realize the controllable temperature dehumidifying such as constant temperature dehumidification, cool-down dehumidification and intensification dehumidifying under dehumidification mode.
These are only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.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 (8)
1. a dehumidification control method for air-conditioner, is characterized in that, described dehumidification control method comprises the steps:
The indoor fan of described air-conditioner runs, and makes the humid air of environment enter the indoor set of described air-conditioner;
The evaporimeter of described air-conditioner forms low temperature and low humidity air to the described humid air cool-down dehumidification entering described indoor set;
The electrical auxiliary heater of described air-conditioner runs, and adds the rear low-humidity air of thermosetting heating to described low temperature and low humidity air;
Low-humidity air after heating described in environmental emission.
2. the dehumidification control method of air-conditioner according to claim 1, is characterized in that, after described dehumidification control method also comprises the steps: to control described heating, the temperature of low-humidity air reaches predetermined temperature.
3. the dehumidification control method of air-conditioner according to claim 2, is characterized in that,
Described predetermined temperature equals the temperature of described humid air; Or,
Described predetermined temperature is greater than the temperature of described humid air; Or,
Described predetermined temperature is less than the temperature of described humid air.
4. the dehumidification control method of air-conditioner according to claim 2, it is characterized in that, described electrical auxiliary heater is Variable power electric heater, and the step that after controlling described heating, the temperature of low-humidity air reaches predetermined temperature comprises: the heating power controlling described electrical auxiliary heater.
5. the dehumidification control method of air-conditioner according to claim 2, it is characterized in that, the compressor of described air-conditioner is frequency-changeable compressor, and the step that after controlling described heating, the temperature of low-humidity air reaches predetermined temperature comprises: the operating frequency controlling described compressor.
6. the dehumidification control method of air-conditioner according to claim 2, it is characterized in that, described electrical auxiliary heater is Variable power electric heater, the compressor of described air-conditioner is frequency-changeable compressor, and the step that after controlling described heating, the temperature of low-humidity air reaches predetermined temperature comprises: control the heating power of described electrical auxiliary heater and control the operating frequency of described compressor.
7. the dehumidification control method of air-conditioner according to claim 6, it is characterized in that, the step that after controlling described heating, the temperature of low-humidity air reaches predetermined temperature comprises: the heating power first controlling described electrical auxiliary heater, controls the operating frequency of described compressor again after the heating power of described electrical auxiliary heater reaches control limit.
8. the dehumidification control method of air-conditioner according to claim 2, is characterized in that, the step that after controlling described heating, the temperature of low-humidity air reaches predetermined temperature comprises: the rotating speed controlling described indoor fan.
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| CN201310567626.6A CN104633837B (en) | 2013-11-14 | 2013-11-14 | The dehumidification control method of air conditioner |
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| CN105157168A (en) * | 2015-08-24 | 2015-12-16 | 合肥美的暖通设备有限公司 | Dehumidification control method for air conditioner, controller and air conditioner |
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| CN107525228A (en) * | 2017-08-03 | 2017-12-29 | 青岛海尔空调器有限总公司 | A kind of method and device of the warm and humid dual control of air-conditioning |
| CN107525225A (en) * | 2017-08-03 | 2017-12-29 | 青岛海尔空调器有限总公司 | A kind of method and device of the warm and humid dual control of air-conditioning |
| CN107763790A (en) * | 2016-08-19 | 2018-03-06 | 广东志高暖通设备股份有限公司 | The dehumanization method and system of a kind of air conditioner |
| CN108644981A (en) * | 2018-05-10 | 2018-10-12 | 青岛海信日立空调系统有限公司 | A kind of air conditioner dehumanization method and air conditioner |
| CN112648680A (en) * | 2020-09-14 | 2021-04-13 | 江苏振宁半导体研究院有限公司 | Dehumidification temperature control method |
| CN112944572A (en) * | 2021-03-02 | 2021-06-11 | 青岛海尔（胶州）空调器有限公司 | Control method and device for dehumidification of air conditioner and air conditioner |
| CN113154619A (en) * | 2021-03-01 | 2021-07-23 | 广东积微科技有限公司 | Dehumidification system of air conditioner, control method, computer device and storage medium |
| CN113739343A (en) * | 2021-09-23 | 2021-12-03 | 佛山市顺德区美的电子科技有限公司 | Control method and system of air conditioning equipment, air conditioning equipment and storage medium |
| CN113739342A (en) * | 2021-09-23 | 2021-12-03 | 佛山市顺德区美的电子科技有限公司 | Control method and system of air conditioning equipment, air conditioning equipment and storage medium |
| 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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