Preparation device for quantitative detection of dangerous gas, and configuration method of preparation device

Abstract

The invention discloses a preparation device for quantitative detection of dangerous gas, and a configuration method of the preparation device. The preparation device for the quantitative detection ofthe dangerous gas comprises a to-be-detected gas storage tank, a three-way valve, a balloon, a glass valve, a vacuumizing pump and a sub-packaging container; the three-way valve is connected with a deflation port of the to-be-detected gas storage tank and the balloon or the balloon and the glass valve; and the glass valve is used for enabling the vacuumizing pump and the sub-packaging container to communicate or enabling the three-way valve and the sub-packaging container to communicate. According to the preparation device, the structure is ingenious; the connection / disconnection of a gas path is controlled through the three-way valve and the glass valve, so that the dangerous gas is guided into the vacuum sub-packaging container under a relatively small contraction force of the balloon;and without performing dangerous operation of manually extracting the gas in the whole process, the purpose of quantitatively sampling the dangerous gas can be achieved, so that the dangerous gas canbe quantitatively detected, the cost is low, the sampling operation is simple and feasible, and the quantification is accurate and reliable.

Description

technical field [0001] The invention relates to a preparation device for quantitative detection of dangerous gas and a configuration method thereof. Background technique [0002] Due to its low boiling point, the gas is difficult to sample accurately, so it is not easy to carry out quantitative detection in the daily detection process. Especially highly toxic, corrosive and other dangerous gases (such as tetrafluoroethylene, hydrogen sulfide, etc.), often require special equipment in the daily detection process, which is expensive and difficult to obtain, and some even cannot be carried out. However, the air bag method requires manual extraction and sampling using devices such as syringes, which is very dangerous to operate and wastes standard gas. Contents of the invention [0003] The purpose of the present invention is to provide a preparation device for quantitative detection of dangerous gas and its configuration method, which can achieve quantitative sampling of dan...

AI Technical Summary

Problems solved by technology

[0002] Due to its low boiling point, the gas is difficult to sample accurately, so it is not easy to carry out quantitative detection in the daily detection process

Especially highly toxic, corrosive and other dangerous gases (such as tetrafluoroethylene, hydrogen sulfide, etc.), often require special equipment in the daily detection process, which is expensive and difficult to obtain, and some even cannot be carried out

However, the air bag method requires manual sampling with syringes and other devices, so the operation is more dangerous, and the standard gas is also very wasteful.

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