Background technology
Existing air-conditioner is generally exported the temperature of wind by control, come the adjusting indoor environment temperature, and the user is felt comfortably cool.During heat, the user makes air-conditioner run on refrigerating state to lower the temperature.The wind that this moment, air-conditioner blew out is the lower cold wind of temperature.Cold wind blows to when indoor by outlet frame, and the edge of the outlet frame wind effect temperature of catching a cold reduces.During lower than the dew-point temperature of air, will produce condensation when the temperature at outlet frame edge around outlet frame.Particularly lower in the outlet frame temperature, in the larger situation of air humidity, easily produce a large amount of condensation globules on the air conditioner air-out frame.The globule that gathers for a long time drips to form and drips or penetrate into air-conditioning inside, affects the user and uses, and produces potential safety hazard and reduces the air-conditioning components and parts life-span.
Be to solve the air-conditioner condensation problem, heat tape can be set around outlet frame, the method by heating make the air-out edge along temperature higher than dew-point temperature, prevent the air-conditioner condensation.But existing a lot of heat tape control method is too simple, can not carry out efficient, energy-conservation control according to the practical operation situation of air-conditioner.In addition, some heat tape control methods need to judge ambient parameters such as humidity, additionally increase the devices such as humidity sensor, improve product cost, and reduce the stability of air-conditioner.In view of the foregoing, also do not find a kind of simple, efficient, energy-conservation heat tape condensation prevention control method at present.
Summary of the invention
Problem for above-mentioned air-conditioner condensation, the invention provides a kind of condensation prevention control method of air-conditioner, the method arranges heat tape around outlet frame, and according to the practical operation situation of air-conditioner, the conditions such as wind speed, compressor switch state, environment temperature and evaporator temperature are judged, control heat tape opening and closing under certain condition, make the air-out edge along temperature higher than dew-point temperature, thereby prevent condensation and drip.Control method of the present invention is simple to operate, and efficient energy-saving can effectively improve user's comfort and air-conditioner quality.
Condensation prevention control method of the present invention comprises the following steps:
1) following four conditions of judgement after the air-conditioner start:
A. whether wind speed setting is the most high-grade wind speed;
B. whether compressor totally opens the first setting-up time T1;
C. first design temperature Ts1≤indoor temperature≤second design temperature Ts2;
D. the 3rd design temperature Ts3≤indoor machine evaporation temperature≤the 4th design temperature Ts4;
If satisfy execution in step 4 of above-mentioned wherein one or more conditions), otherwise execution in step 2), wherein the indoor machine evaporation temperature is the inner tube temperature;
2) judge whether air-conditioner actual motion pattern is refrigeration or dehumidifier pattern, if not, execution in step 4), if so, continue to judge whether cooler compressor is opened, if so, execution in step 3), otherwise execution in step 4); Or judge first whether cooler compressor is opened, if not, execution in step 4); If so, continue to judge whether air-conditioner actual motion pattern is refrigeration or dehumidifier pattern, and if so, execution in step 3), otherwise execution in step 4);
3) air-conditioner is opened heat tape, execution in step 1);
4) air-conditioner is closed heat tape, execution in step 1).
Described the first setting-up time T1 is 30 minutes to 2 hours.
Described the first setting-up time T1 is 1 hour.
Described the first design temperature Ts1 is 25 degrees centigrade to 27 degrees centigrade; The second design temperature Ts2 is 27 degrees centigrade to 29 degrees centigrade; The 3rd design temperature Ts3 is 8 degrees centigrade to 12 degrees centigrade; The 4th design temperature Ts4 is 12 degrees centigrade to 16 degrees centigrade.
The present invention is a kind of air-conditioner condensation prevention control method, and under compressor start up condition, in current situation about opening for refrigeration mode, dehumidifier pattern and compressor, the heat tape load is opened.When the actual motion pattern is non-refrigeration mode, or wind speed is set as the most high-grade wind speed, or the operation of compressor accumulative total reaches setting-up time, or indoor environment temperature is in setting range, or the indoor machine evaporation temperature when being in setting range the heat tape load close, by heat tape being opened or the control of closed condition realizes that air-conditioner is efficient, energy-saving operation, and control method is simple, need not additionally to increase cost, the complete machine stability problem that does not also exist extra increase device to bring.The present invention regulates the outlet frame environment temperature automatically according to the practical operation situation of air-conditioner, prevents that condensation from occurring, function admirable, Intelligent practical.
The specific embodiment
The present invention is described further below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, a kind of condensation prevention control method of air-conditioner, its operation principle is as follows:
At the larger environment of air humidity, when the user opened air-conditioner and sets operational mode for refrigeration or dehumidifier, the cold wind that blows out reduced the temperature of outlet frame.During lower than the dew-point temperature of air, will produce condensation when the temperature of outlet frame.Especially, when air-conditioner was in refrigeration mode or dehumidifier pattern, the lower but environment temperature of outlet frame temperature did not also obviously reduce within a period of time of just opening, and is easy to produce condensation.
The present invention judges whether air-conditioner is in refrigeration mode or dehumidifier pattern after user's start being detected.Air-conditioner output wind is not cold wind if not, and the outlet frame temperature generally is not less than dew-point temperature, can not produce condensation, does not therefore need to open heat tape; If air-conditioner is in refrigeration mode or dehumidifier pattern, judge whether compressor is opened, air-conditioning output wind neither cold wind if not, does not need to open heat tape; If compressor is opened, open heat tape, prevent that the outlet frame temperature is too low and produce condensation.
In the situation that heat tape is opened, as long as meet one of following four conditions, just close heat tape: 1. wind speed setting is the most high-grade wind speed; 2. compressor is totally opened the first setting-up time; 3. indoor environment temperature satisfies certain setting range; 4. the indoor machine evaporation temperature satisfies certain setting range.During for the most high-grade wind speed, air-conditioner is pressed the maximum quantity of wind operation, generally can not produce condensation when wind speed setting.After compressor has been opened certain hour, make environment temperature reduce and reduce with the temperature difference of air conditioning exhausting frame, also being difficult for producing condensation.In addition, experiment shows, when indoor environment temperature and indoor machine evaporation temperature are in certain limit, is difficult for producing condensation.Therefore, in above-mentioned four kinds of situations, do not need to open heat tape.
The condensation prevention control method of air-conditioner of the present invention comprises following several step:
1) following four conditions of judgement after the air-conditioner start:
A. wind speed setting is the most high-grade wind speed;
B. compressor is totally opened the first setting-up time T1;
C. first design temperature Ts1≤indoor temperature≤second design temperature Ts2;
D. the 3rd design temperature Ts3≤indoor machine evaporation temperature≤the 4th design temperature Ts4.
If satisfy execution in step 4 of wherein one or more conditions); Otherwise execution in step 2);
2) judge whether air-conditioner actual motion pattern is refrigeration or dehumidifier pattern, if not, execution in step 4), if so, continue to judge whether cooler compressor is opened, if so, execution in step 3), otherwise execution in step 4); Or judge first whether cooler compressor is opened, if not, execution in step 4); If so, continue to judge whether air-conditioner actual motion pattern is refrigeration or dehumidifier pattern, and if so, execution in step 3), otherwise execution in step 4);
3) air-conditioner is opened heat tape, execution in step 1);
4) air-conditioner is closed heat tape, execution in step 1).
Above-mentioned steps 1) the condition a in specifically describes: air conditioner chamber's inner blower has been opened and wind speed setting is the most high-grade wind speed.Indoor fan quantity can be one or more.
Above-mentioned steps 1) in the condition b in, after compressor shutdown, the cumulative time is with reclocking.The first setting-up time T1 is specially 30 minutes to two hours according to actual conditions.
Above-mentioned steps 1) the first design temperature Ts1 in the condition c in is specially 25 degrees centigrade to 27 degrees centigrade according to actual conditions.The second design temperature Ts2 is specially 27 degrees centigrade to 29 degrees centigrade according to actual conditions.The 3rd design temperature Ts3 in condition d is specially 8 degrees centigrade to 12 degrees centigrade according to actual conditions.The 4th design temperature Ts4 is specially 12 degrees centigrade to 16 degrees centigrade according to actual conditions.
Above-mentioned steps 2) specifically describe and to be, except freeze and dehumidifier other pattern, as: heat, automatically heat, the heat tape load is closed under air-supply, automatic ventilating isotype.
Above-mentioned steps 2) and step 3) can exchange sequencing, judge first namely whether the compressor of air-conditioner is opened, then judge that whether the actual motion pattern is refrigeration or dehumidifier pattern.
In the present embodiment, operational mode describes as an example of refrigeration mode example.Preferred 1 hour of the first setting-up time T1, preferred 26 degrees centigrade of the first design temperature Ts1, preferred 28 degrees centigrade of the second design temperature Ts2, preferred 10 degrees centigrade of the 3rd design temperature Ts3, preferred 14 degrees centigrade of the 4th design temperature Ts4.
Open air-conditioner, select refrigeration mode, regulating wind speed is the most high-grade non-wind speed.When compressor open and the accumulative total opening time less than 1 hour, and indoor environment temperature is less than 26 degrees centigrade or greater than 28 degrees centigrade, and the indoor machine evaporation temperature is less than 10 degrees centigrade or during greater than 14 degrees centigrade, heat tape is opened automatically.At this moment, if shutdown or adjust operation pattern are non-refrigeration and dehumidifier pattern, or wind speed setting is the most high-grade wind speed, or compressor cuts out, or compressor accumulative total ETAD expected time of arrival and departure was over 1 hour, or indoor environment temperature is greater than 26 degrees centigrade and less than 28 degrees centigrade, or the indoor machine evaporation temperature is greater than 10 degrees centigrade and less than 14 degrees centigrade, the heat tape autoshutdown.
Control method of the present invention is simple to operate, and efficient energy-saving can effectively improve user's comfort and air-conditioner quality.