Gas monitoring and controlling device

Abstract

The invention provides a gas monitoring and controlling device. The gas monitoring and controlling device comprises a gas source part, a gas output controlling part and a gas state detection alarming part, wherein the gas source part is used for outputting gas through the gas output controlling part; the gas state detection alarming part is connected with the gas source part and the gas output controlling part. The gas source part comprises a gas source and a primary pressure reducer; the gas source is connected with the primary pressure reducer; the primary pressure reducer is used for reducing pressure of output gas of the gas source. The gas output controlling part comprises a convection heat exchanging plate, a normally closed solenoid valve, a gas heater, a filter, a first digital flow meter and a first check valve; the primary pressure reducer, the convection heat exchanging plate, the normally closed solenoid valve, the gas heater, the filter, the first digital flow meter and the first check valve are connected in sequence. According to the gas monitoring and controlling device, the convection heat exchanging plate and the gas heater are arranged so that the function of adjusting gas main parameters is realized; the gas temperature can be set to a fixed value.

Description

technical field [0001] The invention relates to the field of precision manufacturing process protection and quantitative gas supply for laboratory precision equipment operation, in particular to a gas monitoring and control device. Background technique [0002] Under normal circumstances, the requirements for gas supply parameters and reliability levels are not high. After the gas is decompressed in the second stage, the gas supply can be easily connected through the pipeline to meet the use requirements. Aeronautics, aerospace, precision manufacturing and laboratories all require continuous, stable, safe and reliable gas supply. In this field, some precision components, especially surface-sensitive devices, need to implement continuous protection measures such as anti-pollution or anti-oxidation. Most of them use inert gas protection, and the duration lasts for several years. [0003] Uninterrupted anti-pollution or anti-oxidation measures have higher requirements on the p...

AI Technical Summary

Problems solved by technology

However, the reliability and convenience are poor, especially there are many risk points of single point failure, such as the inability to separate from the power supply module, and when the redundancy design of the power supply module is large, its portability is poor (the weight and volume are too large). Big)

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