Classification of humidity regulators.water humidifier direct sales

　　(1) The humidity regulator with dry and wet temperature sensing elements places two temperature sensing elements simultaneously at the measuring point, and one of them is wrapped in wet gauze to reflect the relative humidity by using the temperature difference between the dry and wet temperature sensing elements. The temperature sensing element can use a temperature bulb. Transforming the temperature difference between dry and wet into the pressure difference thermal resistance of the warm pack filling agent: there is a temperature difference - a resistance difference occurs - an unbalanced voltage that becomes a bridge - reflecting relative humidity.

　　(2) Lithium chloride type electric humidity regulator

　　When the relative humidity of the air changes, the water content of Lithium chloride coating changes, and its electrical property changes, so the current changes. After amplifying this electrical signal, control the humidity regulating solenoid valve 4. When the relative humidity of the air reaches the set value, the signal relay contact opens, the solenoid valve closes, and the spraying of moisture stops. When φ When it is 1% below the set value, the solenoid valve opens and the humidifier operates.

　　(3) Nylon (or hair) type pneumatic humidity transmitter

　　A moisture sensing element is made by utilizing the characteristics of the elongation of nylon or degreased hair under a given tension, which is related to the relative humidity of the air.

　　The system and its maintenance and management are relatively complex, with low sensitivity. After prolonged use, the humidity sensing components may age or produce plastic deformation. Currently, it is not widely used.

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