CN103900190A - Control method of air-conditioner - Google Patents
Control method of air-conditioner Download PDFInfo
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- CN103900190A CN103900190A CN201210587132.XA CN201210587132A CN103900190A CN 103900190 A CN103900190 A CN 103900190A CN 201210587132 A CN201210587132 A CN 201210587132A CN 103900190 A CN103900190 A CN 103900190A
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Abstract
The invention relates to a control method of an air-conditioner. The air-conditioner comprises a compressor, a throttling gear and a heat exchanger. A first temperature sensor is arranged on the portion, close to outlet piping during refrigeration of the air-conditioner, of the heat exchanger, and a second temperature sensor is arranged on the portion, close to a water pan, of the heat exchanger. During refrigeration of the air-conditioner, the temperature difference between the portion, close to the outlet piping, of the heat exchanger and the portion, close to the water pan, of the heat exchanger is detected by the first temperature sensor and the second temperature sensor respectively, and operation of the throttling gear and operation of the compressor are regulated accordingly. According to the control method of the air-conditioner, moisture condensation during refrigeration of the air-conditioner can be reduced, and the operation efficiency of the air conditioner can be improved.
Description
Technical field
The present invention relates to the control method of air conditioner.
Background technology
The control method of existing air conditioner be before air-conditioner operation by the temperature and humidity of sensing chamber's internal and external environment, rerun after having set in advance the parameters of air conditioner, start after running at air conditioner, these parameters are not adjusted.
But, because these parameters cannot be adjusted in time according to the real-world operation of air conditioner, therefore have for example generation of the condensation status in the time of cooling operation, thereby reduced the running efficiency of air conditioner.
Summary of the invention
In order to overcome the defect of above-mentioned prior art, the present inventor considers, if in the cooling operation process of air conditioner, adjust in time the operating parameters of air conditioner according to the temperature difference near the part of outlet pipe arrangement and the part of close drip tray of heat exchanger, thereby effectively prevent the dewfall of air conditioner in cooling operation process, improve the running efficiency of air conditioner.
Therefore, the invention provides a kind of control method of air conditioner, wherein, described air conditioner comprises compressor, throttling arrangement, heat exchanger, and, the part of the outlet pipe arrangement in the time of the close described air conditioner refrigeration running of described heat exchanger is provided with the 1st temperature sensor and is provided with the 2nd temperature sensor in the part of the close drip tray of heat exchanger
In the time that described air conditioner carries out cooling operation, the temperature difference near the part of outlet pipe arrangement and the part of close drip tray that detects respectively heat exchanger by the 1st temperature sensor and the 2nd temperature sensor, regulates the running of described throttling arrangement and compressor thus.
In addition, according to the control method of air conditioner of the present invention, wherein, when heat exchanger near the part of outlet pipe arrangement with near the temperature difference of the part of drip tray during lower than the first regulation temperature difference, throttling arrangement turns round according to the initial value of its aperture, and described compressor turns round according to the initial value of its frequency.
In addition, according to the control method of air conditioner of the present invention, wherein, when heat exchanger near the part of outlet pipe arrangement with near the temperature difference of the part of drip tray during more than the first regulation temperature difference and lower than the second regulation temperature difference, the aperture of throttling arrangement increases; When heat exchanger near the part of outlet pipe arrangement with near the temperature difference of the part of drip tray during lower than the first regulation temperature difference, the aperture of throttling arrangement reverts to initial value.
In addition,, according to the control method of air conditioner of the present invention, wherein, the aperture of described throttling arrangement increases by 0.01 ~ 1 times with respect to initial value.
In addition, according to the control method of air conditioner of the present invention, wherein, when heat exchanger near the part of outlet pipe arrangement and near the temperature difference of the part of drip tray in the second regulation temperature difference when above, the aperture of throttling arrangement increases, and the frequency of compressor reduces; When heat exchanger near the part of outlet pipe arrangement with near the temperature difference of the part of drip tray during more than the first regulation temperature difference and lower than the second regulation temperature difference, the aperture of throttling arrangement increases, and the frequency retrieval of compressor is initial value; When heat exchanger near the part of outlet pipe arrangement with near the temperature difference of the part of drip tray during lower than the first regulation temperature difference, the aperture of throttling arrangement reverts to initial value.
In addition, according to the control method of air conditioner of the present invention, wherein, when heat exchanger near the part of outlet pipe arrangement and near the temperature difference of the part of drip tray in the second regulation temperature difference when above, the aperture of throttling arrangement increases, and the frequency of compressor reduces; When heat exchanger near the part of outlet pipe arrangement with near the temperature difference of the part of drip tray during lower than the first regulation temperature difference, the aperture of throttling arrangement and the frequency of compressor all revert to initial value.
In addition,, according to the control method of air conditioner of the present invention, wherein, the aperture of described throttling arrangement increases by 0.01 ~ 1 times with respect to initial value, and the frequency of compressor reduces by 1% ~ 30% with respect to initial value.
According to the control method of air conditioner of the present invention, the part of outlet pipe arrangement while running by immediately detecting the close described air conditioner refrigeration of heat exchanger and the temperature difference of the part of close drip tray, regulate thus the running of described throttling arrangement and/or compressor, thereby can reduce the dewfall of air conditioner in the time of cooling operation, improve the running efficiency of air conditioner.
Brief description of the drawings
Fig. 1 is the structural representation of air conditioner of the present invention.
Fig. 2 is the flow chart of the control method of air conditioner of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention will be described in more detail.
As shown in Figure 1, on the heat exchanger 10 of air conditioner of the present invention, the part of the outlet pipe arrangement 11 when near described air conditioner refrigeration running is provided with the 1st temperature sensor, is provided with the 2nd temperature sensor in the part near drip tray 12.In the time that described air conditioner carries out cooling operation, come to detect in real time respectively the temperature T out of the part near outlet pipe arrangement 11 of described heat exchanger 10 and the temperature T eva of the part of close drip tray 12 by the 1st temperature sensor and the 2nd temperature sensor, and obtain thus this two-part temperature difference, i.e. Tout-Teva.
Control method of the present invention is in the time that air conditioner carries out cooling operation, carry out the operating parameters of adjusting air conditioning according to the temperature difference near the part of outlet pipe arrangement and the part of close drip tray of heat exchanger,, the aperture of the throttling arrangement of adjusting air conditioning and the frequency of compressor.In control method of the present invention, in the process that judges difference variation, be provided with two critical-temperatures, i.e. the first regulation temperature difference T1 and the second regulation temperature difference T2, and T2>T1.
Below be described in detail respectively.
(1) Tout-Teva<T1
When the part near outlet pipe arrangement with near the temperature difference of the part of drip tray during lower than the first regulation temperature difference,, Tout-Teva<T1, owing to judging that flow distribution of refrigerant in heat exchanger now, in poised state, dewfall can not occur, therefore, the operating parameters of described compressor and throttling arrangement is constant, that is, throttling arrangement turns round according to the initial value of its aperture, and described compressor turns round according to the initial value of its frequency.At this, the so-called initial value of aperture of throttling arrangement or the initial value of the frequency of compressor refer to respectively start aperture when extremely stable and the value of frequency when air conditioner from start, conventionally, about 30 minutes, think that operation of air conditioner is stable from bringing into operation at air conditioner.
(2) T1≤Tout-Teva<T2
When heat exchanger near the part of outlet pipe arrangement with near the temperature difference of the part of drip tray during more than the first regulation temperature difference and lower than the second regulation temperature difference,, T1≤Tout-Teva<T2, uneven owing to judging that the assignment of traffic of the cold-producing medium in heat exchanger produces, have the tendency of dewfall, therefore, need to increase the aperture of throttling arrangement, particularly, the aperture of throttling arrangement preferably increases by 0.01～1 times with respect to initial value.If the increase of the aperture of throttling arrangement, lower than 0.01 times of initial value, is not brought into play regulating action, if the increase of the aperture of throttling arrangement higher than 1 times of initial value, can cause the height pressure reduction of air conditioner to diminish so, thus the service efficiency of reduction air conditioner.
In the time that Tout-Teva is reduced to lower than the first regulation temperature difference, that is, Tout-Teva<T1, the aperture of described throttling arrangement returns to initial value.
(3) T2≤Tout-Teva
When heat exchanger near the part of outlet pipe arrangement and near the temperature difference of the part of drip tray in the second regulation temperature difference when above,, T2≤Tout-Teva, uneven owing to judging that the assignment of traffic of the cold-producing medium in heat exchanger produces, have the tendency of dewfall, therefore, not only need to regulate the aperture of throttling arrangement, and need to regulate the frequency of compressor.This is because the maximum stream flow of throttling arrangement is conditional, reaches maximum stream flow but still cannot reduce the temperature difference time, the frequency that just need to simultaneously reduce compressor realizes the reduction temperature difference jointly when the aperture of throttling arrangement is increased to.Particularly, the aperture of described throttling arrangement increases by 0.01 ~ 1 times with respect to initial value, and the frequency of compressor reduces by 1% ~ 30% with respect to initial value.If the aperture of throttling arrangement increases less than 0.01 times with respect to initial value, do not bring into play regulating action, if the aperture of throttling arrangement exceedes 1 times with respect to initial value increase, can cause so the height pressure reduction of air conditioner to diminish, thereby reduce the service efficiency of air conditioner.And, if the frequency of compressor reduces less than 1% with respect to initial value, cannot bring into play regulating action, if reduce and exceed 30% with respect to initial value, can cause height pressure reduction to diminish, thereby reduce the service efficiency of air conditioner, and easily cause the liquid hammer of compressor, damage compressor.
During more than Tout-Teva is reduced to the first regulation temperature difference and lower than the second regulation temperature difference,, T1≤Tout-Teva<T2, because although the assignment of traffic that judges the cold-producing medium in heat exchanger has obtained adjusting, but still in unbalanced state, therefore, be still increase state by the aperture of throttling arrangement, but the frequency retrieval of compressor is to initial value.Now, the aperture of throttling arrangement preferably increases by 0.01～1 times with respect to initial value.Now, if the aperture of throttling arrangement increases less than 0.01 times with respect to initial value, do not bring into play regulating action, if the aperture of throttling arrangement exceedes 1 times with respect to initial value increase, can cause so the height pressure reduction of air conditioner to diminish, thereby reduce the service efficiency of air conditioner.
In the time that Tout-Teva continues to be reduced to lower than the first regulation temperature difference, that is, Tout-Teva<T1, the aperture of described throttling arrangement also returns to initial value.
In addition, if underspeeding of Tout-Teva is very fast,, in the time not yet judging that Tout-Teva is between the first regulation temperature difference and the second regulation temperature difference, while being just reduced to lower than the first regulation temperature difference from T2≤Tout-Teva, that is, be reduced to Tout-Teva<T1, the aperture of described throttling arrangement and the frequency of compressor all return to initial value.
According to control method of the present invention, by the time that air conditioner carries out cooling operation, the operating parameters of adjusting air conditioning, particularly, regulate the aperture of throttling arrangement and further regulate the frequency of compressor, thereby can reduce dewfall, improve the running efficiency of air-conditioning.
Fig. 2 is the flow chart of the control method of air conditioner of the present invention.
As shown in Figure 2, in the time that air conditioner starts to carry out cooling operation, the 1st temperature sensor and the 2nd temperature sensor detect the temperature of present position separately, and calculating temperature difference Tout-Teva, then this temperature difference Tout-Teva and the first set point of temperature T1 and the second set point of temperature T2 are compared and judged.Below be elaborated.
In the time judging temperature difference Tout-Teva lower than the first set point of temperature T1, that is, and Tout-Teva<T1, air conditioner is maintained the statusquo, and continues original running, its operating parameters is not regulated,, the aperture of its throttling arrangement and the frequency of compressor are all constant.
In the time judging that temperature difference Tout-Teva is between the first set point of temperature T1 and the second set point of temperature T2, that is, T1≤Tout-Teva<T2, the aperture of throttling arrangement increases, the assignment of traffic of the cold-producing medium in heat exchanger is adjusted, to reduce temperature difference Tout-Teva.
After the operating parameters of throttling arrangement is adjusted, continued to detect and calculating temperature difference Tout-Teva by sensor in air conditioner refrigeration running simultaneously.
And then if judge that temperature difference Tout-Teva is still T1≤Tout-Teva<T2, the aperture of throttling arrangement still increases so, to regulate the assignment of traffic of the cold-producing medium in heat exchanger.
If judge that temperature difference Tout-Teva has been reduced to Tout-Teva<T1, the aperture of throttling arrangement returns to initial value so, and air conditioner carries out cooling operation according to original parameter.
If judge that temperature difference Tout-Teva does not reduce, continue to be on the contrary increased to T2≤Tout-Teva, regulate the aperture of throttling arrangement cannot realize the object that reduces the temperature difference owing to only relying on so, therefore, need to reduce the frequency of compressor simultaneously.Regulate the dispense flow rate of cold-producing medium by increase the aperture of throttling arrangement and the frequency of reduction compressor simultaneously, so that reduction temperature difference Tout-Teva.
After the operating parameters of throttling arrangement and compressor is adjusted, detect and calculating temperature difference Tout-Teva at air conditioner refrigeration running while sensor.
And then if judge that temperature difference Tout-Teva is still for T2≤Tout-Teva, the aperture of throttling arrangement still increases and the frequency of compressor still reduces so, to regulate the assignment of traffic of the cold-producing medium in heat exchanger.
If judge that temperature difference Tout-Teva is T1≤Tout-Teva<T2, the frequency retrieval of compressor is to initial value so, but the aperture of throttling arrangement still increases, to regulate the assignment of traffic of the cold-producing medium in heat exchanger.
If judge that temperature difference Tout-Teva has been reduced to Tout-Teva<T1, the aperture of throttling arrangement and the frequency of compressor all return to initial value so, and air conditioner carries out cooling operation according to original parameter.
Therefore, by above flow process, the control method of air conditioner of the present invention is by regulating in time the operating parameters of throttling arrangement and compressor when the cooling operation, thereby reduces the dewfall of air conditioner, improves the running efficiency of air conditioner.
Although below by reference to the accompanying drawings the present invention is illustrated, is appreciated that above-mentioned explanation does not limit the present invention in any form.Those skilled in the art can be out of shape and change the present invention as required in the situation that not departing from connotation of the present invention and scope, and these distortion and variation all fall within the scope of the present invention.
Claims (7)
1. a control method for air conditioner, is characterized in that,
Described air conditioner comprises compressor, throttling arrangement, heat exchanger, and, the part of the outlet pipe arrangement in the time of the close described air conditioner refrigeration running of described heat exchanger is provided with the 1st temperature sensor and is provided with the 2nd temperature sensor in the part of the close drip tray of heat exchanger
In the time that described air conditioner carries out cooling operation, the temperature difference near the part of outlet pipe arrangement and the part of close drip tray that detects respectively heat exchanger by the 1st temperature sensor and the 2nd temperature sensor, regulates the running of described throttling arrangement and compressor thus.
2. the control method of air conditioner according to claim 1, is characterized in that,
When heat exchanger near the part of outlet pipe arrangement with near the temperature difference of the part of drip tray during lower than the first regulation temperature difference, throttling arrangement turns round according to the initial value of its aperture, and described compressor turns round according to the initial value of its frequency.
3. the control method of air conditioner according to claim 1, is characterized in that,
When heat exchanger near the part of outlet pipe arrangement with near the temperature difference of the part of drip tray during more than the first regulation temperature difference and lower than the second regulation temperature difference, the aperture of throttling arrangement increases;
When heat exchanger near the part of outlet pipe arrangement with near the temperature difference of the part of drip tray during lower than the first regulation temperature difference, the aperture of throttling arrangement reverts to initial value.
4. the control method of air conditioner according to claim 3, is characterized in that,
The aperture of throttling arrangement increases by 0.01 ~ 1 times with respect to initial value.
5. the control method of air conditioner according to claim 1, is characterized in that,
When heat exchanger near the part of outlet pipe arrangement and near the temperature difference of the part of drip tray in the second regulation temperature difference when above, the aperture of throttling arrangement increases, and the frequency of compressor reduces;
When heat exchanger near the part of outlet pipe arrangement with near the temperature difference of the part of drip tray during more than the first regulation temperature difference and lower than the second regulation temperature difference, the aperture of throttling arrangement increases, and the frequency retrieval of compressor is initial value;
When heat exchanger near the part of outlet pipe arrangement with near the temperature difference of the part of drip tray during lower than the first regulation temperature difference, the aperture of throttling arrangement reverts to initial value.
6. the control method of air conditioner according to claim 1, is characterized in that,
When heat exchanger near the part of outlet pipe arrangement and near the temperature difference of the part of drip tray in the second regulation temperature difference when above, the aperture of throttling arrangement increases, and the frequency of compressor reduces;
When heat exchanger near the part of outlet pipe arrangement with near the temperature difference of the part of drip tray during lower than the first regulation temperature difference, the aperture of throttling arrangement and the frequency of compressor all revert to initial value.
7. according to the control method of the air conditioner described in claim 5 or 6, it is characterized in that,
The aperture of described throttling arrangement increases by 0.01 ~ 1 times with respect to initial value, and the frequency of compressor reduces by 1% ~ 30% with respect to initial value.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210587132.XA CN103900190B (en) | 2012-12-28 | 2012-12-28 | The control method of air conditioner |
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| CN201210587132.XA CN103900190B (en) | 2012-12-28 | 2012-12-28 | The control method of air conditioner |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108731324A (en) * | 2018-06-22 | 2018-11-02 | 江苏新安电器有限公司 | A kind of degree of superheat control electronic expansion valve system |
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| JPS5680641A (en) * | 1979-11-30 | 1981-07-02 | Daikin Ind Ltd | Air conditioner |
| CN1380963A (en) * | 2000-06-07 | 2002-11-20 | 三星电子株式会社 | Control system of degree of superheat of air conditioner and ocntrol method thereof |
| CN1916538A (en) * | 2005-08-18 | 2007-02-21 | 松下电器产业株式会社 | Air conditioner device |
| KR20090019566A (en) * | 2007-08-21 | 2009-02-25 | 삼성전자주식회사 | Air conditioner |
| CN102003773A (en) * | 2010-11-25 | 2011-04-06 | 佛山市中格威电子有限公司 | Shunt compensation control system of inverter-driven multi-split air conditioner |
| CN102116550A (en) * | 2009-12-31 | 2011-07-06 | 丹佛斯（上海）自动控制有限公司 | Evaporation control device used in refrigerating system |
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2012
- 2012-12-28 CN CN201210587132.XA patent/CN103900190B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5680641A (en) * | 1979-11-30 | 1981-07-02 | Daikin Ind Ltd | Air conditioner |
| CN1380963A (en) * | 2000-06-07 | 2002-11-20 | 三星电子株式会社 | Control system of degree of superheat of air conditioner and ocntrol method thereof |
| CN1916538A (en) * | 2005-08-18 | 2007-02-21 | 松下电器产业株式会社 | Air conditioner device |
| KR20090019566A (en) * | 2007-08-21 | 2009-02-25 | 삼성전자주식회사 | Air conditioner |
| CN102116550A (en) * | 2009-12-31 | 2011-07-06 | 丹佛斯（上海）自动控制有限公司 | Evaporation control device used in refrigerating system |
| CN102003773A (en) * | 2010-11-25 | 2011-04-06 | 佛山市中格威电子有限公司 | Shunt compensation control system of inverter-driven multi-split air conditioner |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108731324A (en) * | 2018-06-22 | 2018-11-02 | 江苏新安电器有限公司 | A kind of degree of superheat control electronic expansion valve system |
| CN108731324B (en) * | 2018-06-22 | 2020-12-25 | 江苏新安电器有限公司 | Superheat degree controlled electronic expansion valve system |
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| CN103900190B (en) | 2018-02-16 |
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