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What are the humidification methods of constant temperature and humidity test chamber

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What are the humidification methods of constant temperature and humidity test chamber

When the constant temperature and humidity test chamber is doing the test, the relative humidity in the constant temperature and humidity test chamber studio should be adjusted according to the test needs, and there are generally four ways to achieve the effect of adjusting the relative humidity. They are: spray water humidification, steam humidification, shallow water basin humidification and supercooled steam humidification. The following will analyze them from several aspects.

First, the similarities and differences in humidification methods

1. Water humidification: spray water on the wall of the constant temperature and humidity test chamber working chamber.

2. Steam humidification: The steam boiler sprays water vapor into the constant temperature and humidity test chamber.

3. Shallow water tray humidification: use the shallow water tray installed with heating device in the constant temperature and humidity test chamber to add water vapor to the tank.

4. Supercooled steam humidification: the use of ultrasound, high-pressure water mist, centrifugal spray and other means to convert water into micron-level water mist.

Second, the similarities and differences of humidification principles

1. Water humidification: The water area on the wall of the constant temperature and humidity test chamber increases, and the water pressure in the box increases when the water diffuses into the box, thereby increasing the relative humidity.

2. Vapor humidification: Spray water vapor directly into the constant temperature and humidity test chamber to increase the relative humidity in the chamber.

3. Shallow water basin humidification: The water heated in the shallow water tray increases water vapor to the constant temperature and humidity test chamber through convection and diffusion, thereby increasing the relative humidity.

4. When doing the test of the constant temperature and humidity test chamber, the relative humidity in the studio of the constant temperature and humidity test chamber should be adjusted according to the needs of the test, and there are generally four ways to achieve the effect of adjusting the relative humidity. They are: spray water humidification, steam humidification, shallow water basin humidification and supercooled steam humidification. The following Farui instrument will analyze them from several aspects.