Environmental humidity control method and device for sealed cavity

A technology of environmental humidity and control method, applied in the direction of humidity control, non-electric variable control, control/regulation system, etc., can solve the problem of not being able to accurately control the humidity, etc., achieve fast humidity regulation speed, wide regulation humidity range, and use handy effect

Inactive Publication Date: 2010-06-09
HENAN UNIV OF SCI & TECH
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Problems solved by technology

However, the current humidity control methods cannot meet the special re

Method used

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  • Environmental humidity control method and device for sealed cavity
  • Environmental humidity control method and device for sealed cavity

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Embodiment Construction

[0011] The present invention is described in further detail below with the mode of embodiment:

[0012] The gas is divided into two branches of drying and humidification and enters the air chamber of the airtight cavity. Use high-pressure gas cylinders or gas compressors to adjust the required test gas to the specified pressure to ensure that the pressure of the gas source is stable, thereby providing a basic guarantee for accurate humidity control. Among them, the dry gas branch passes concentrated H 2 SO 4 After drying, it is regulated by the gas flow meter and then connected to the three-way gas joint; the humidified gas branch is humidified through the water tank and then connected to the three-way gas joint after being regulated by the flow meter. Cavity environment air chamber. The humidity control in the air chamber of the airtight chamber ring chamber is adjusted by adjusting the flow rate ratio of dry and wet gas through two flowmeters. Gas source components can b...

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Abstract

The invention discloses an environmental humidity control method for a sealed cavity. A drying gas branch circuit and a wetting gas branch circuit are supplied, wherein the drying gas branch circuit is connected with a three-way gas joint after being dried and regulated and controlled by a gas flowmeter; the wetting gas branch circuit is connected with the three-way gas joint after being wetted and regulated and controlled by the flowmeter; the drying gas and the wetting gas are converged into one path at the three-way gas joint to enter an environmental gas chamber of the sealed cavity; and the humidity control in the environmental gas chamber of the sealed cavity is adjusted by the charged flow proportion of the drying flowmeter gas and the wetting flowmeter gas. A device mainly comprises a drying gas source (12), a drying device (14), a drying gas flowmeter (16), a wetting gas source (10), a water tank (8), a wetting gas flowmeter (16), the three-way gas joint (4) and the environmental gas chamber (2) of the sealed cavity. The invention has simple, economic and practical control way, large regulating and control humidity range, simple equipment structure, convenient use, environmental protection and no pollution and can meet the use requirement of special atmosphere humidity in the sealed cavity.

Description

technical field [0001] The invention relates to the technical field of gas humidity adjustment, and mainly relates to an environment humidity control method and device for a closed cavity. Background technique [0002] With the development of science and technology, the requirements for the accuracy of test and measurement work are increasing. Not only sound test methods are required, but also a standard and accurate test environment is required to eliminate the influence of various external factors on test results and analysis, and ensure that the test Data accuracy and reliability. At present, in the disclosed patents on gas humidity control technology, humidifiers and dehumidifiers are generally used for humidity control. Humidity generation devices generally use adsorption materials, ultrasonic atomization humidification and other similar devices. These humidity control technologies are mainly used in air conditioners, coolers, carriages, greenhouses, tents, etc. Some ...

Claims

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Application Information

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IPC IPC(8): B01L1/00G05D22/00
Inventor 邱明殷勇陈龙刘红彬袁文征
Owner HENAN UNIV OF SCI & TECH
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