Saturated salt type humidity generator capable of adjusting humidity rapidly

Abstract

The invention relates to a saturated salt type humidity generator capable of adjusting the humidity rapidly. The generator comprises constant temperature bath and an upper cover plate, the upper cover plate is mounted in an upper opening of the constant temperature bath and seals the constant temperature bath, the upper cover plate is provided with two plate-through sleeve joints which serve as a gas inlet and a gas outlet respectively, the gas inlet is connected with a gas inlet pipe via the plate-through sleeve joint at the outer side of the constant temperature bath, the gas inlet is connected with a bubbler via the plate-through sleeve joint at the inner side of the constant temperature bath, a bubbling port of the bubbler is placed at the lowest liquid level of the constant temperature bath, the gas outlet is connected with a gas outlet pipe via the plate-through sleeve joint at the outer side of the constant temperature bath, the gas outlet pipe is connected with a dry gas inlet pipe via a sleeve T-branch pipe, a gas outlet end of the gas outlet pipe is provided with a gas mixer, a gas inlet end of the gas inlet pipe and a gas inlet end of the dry gas inlet pipe are provided with gas quality-flow controllers respectively, and the constant temperature bath is internally provided with a thermal-arrest type electric heating coil. The saturated salt type humidity generator has the advantages of high humidity control precision, high adjustment and control speed, simple and convenient use, and compact structure.

Description

technical field [0001] The invention relates to a saturated salt type humidity generator capable of quickly adjusting humidity. Background technique [0002] Humidity is one of the main environmental parameters in production and living fields, so humidity generators are widely used in industrial and scientific research fields. Among various humidity generators that can generate known humidity values, the saturated salt humidity generator is widely used because of its advantages of simple operation, low price and so on. However, the saturated salt humidity generator currently used in China is usually made into a separate glass vial to obtain gas with a single humidity point. Since the vial is easily affected by changes in ambient temperature, a constant temperature cannot be guaranteed, thereby affecting the humidity of the generated gas. At the same time, the existing method can only generate the humidity at a specific point, and cannot achieve continuous adjustment of the ...

AI Technical Summary

Problems solved by technology

However, the saturated salt humidity generator currently used in China is usually made into a separate glass vial to obtain gas with a single humidity point. Since the vial is easily affected by changes in ambient temperature, a constant temperature cannot be guaranteed, thereby affecting the humidity of the generated gas. control accuracy, while the existing method can only generate a specific point of humidity, can not achieve continuous adjustment of humidity

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