Humidity control method and device

Abstract

The invention discloses a humidity control method and device. Firstly, the current temperature and current dew-point temperature of the circulating air are detected, and whether the current temperature of the circulating air is within the set dew-point temperature control range or not is judged. If yes, the humidification and dehumidification states of a unit are controlled in order to adjust the dew-point temperature and relative humidity of the circulating air, and the dew-point temperature of the processed circulating air is made to be not lower than the set the minim dew-point temperature value but not higher than the maximum dew-point temperature value, and the relative humidity of the processed circulating air is made to be not higher than the maximum relative humidity value. In other words, the humidity is controlled through the dew-point temperature according to the physical properties of the air, the influence of temperature on the relative humidity is avoided, and therefore the situation that an air conditioner carries out dehumidification while carrying out humidification is avoided to the maximum extent. Not only are the effects of saving energy and water achieved, but also the possibility of temperature and humidity fluctuation of the processed air is lowered, and the reliability and accuracy of temperature and humidity control are improved.

Description

technical field

[0001] The invention relates to the field of automatic control, in particular to a humidity control method and device. Background technique

[0002] With the application of air conditioners more and more widely, all walks of life gradually put forward higher requirements for air conditioners, not only higher requirements for the control accuracy of ambient temperature and humidity, but also higher requirements for energy saving, water saving, cleanliness, etc. new requirements. These users are mainly concentrated in computer rooms, food production, operating rooms, pharmaceutical manufacturing, chemical production and other occasions.

[0003] At present, for occasions such as computer rooms that require precise control of temperature and humidity, the control of temperature and humidity can be mainly realized through conventional temperature-humidity control logic. Specifically, the conventional temperature control logic can be: set the target temperature ...

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