Liquid component gasification filling device

Abstract

The invention relates to a method for preparing standard gas of volatile chlorinated hydrocarbons and a gasification filling device for liquid components, which is characterized in that it includes a digital heating device, and the digital heating device includes a heating device and a heating device for controlling A numerically controlled heating display for temperature; a gasification chamber is arranged inside the heating device; a liquid filling port connected with the gasification chamber is threaded on the top of the heating device, and one side of the liquid filling port passes through a purge pipeline It is connected with a high-purity gas bottle, and a pressure regulator is also arranged on the purging pipeline; the bottom of the heating device is threaded with a bottle connection part for connecting with a sample gas bottle. The invention can be applied to the preparation of single-component volatile chlorinated hydrocarbon gas standard samples, and is also suitable for the preparation of volatile chlorinated hydrocarbon gas standard samples mixed in different quantities. The invention has the advantages of simple operation, high preparation efficiency and good preparation reproducibility, and can be widely used in the preparation of volatile chlorinated hydrocarbon standard gas.

Description

technical field [0001] The invention relates to the field of standard gas preparation, in particular to a method for preparing volatile chlorinated hydrocarbon standard gas and a liquid component gasification filling device. Background technique [0002] Chlorinated hydrocarbons are an important class of organic synthesis intermediates, and are the starting materials for many organic synthesis. Among them, organic chlorinated hydrocarbons are widely used as solvents, industrial and civilian cleaning agents, but these substances will not only damage the skin, cause central nervous system poisoning, but also cause damage to the cell prototype, heart, etc., and have adverse effects on the liver, kidney, and pancreas. Some compounds may also have carcinogenic effects, so all organic chlorides have greater toxicity. Chlorinated hydrocarbons in the atmosphere mainly come from man-made pollution except for a very small part from natural biological metabolism. The chlorine atoms r...

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