Diverter for volatility organic compound test cabin

Abstract

A diverter of volatile organic compound test storehouse belongs to the technical field of testing instrument. The invention comprises a sealed cylinder hollow shell (1), which is characterized in that the shell (1) is mounted with an internal cylinder buffer (2), an air inlet pipe (3) through the shell (1) is inserted into the cylinder buffer (2), one end of an air outlet of the buffer (2) far from the air inlet pipe (3) is provided with an air outlet opening (4) communicated with the chamber of the shell (1), the shell (1) is connected with a sampling pipe (5) and a discharge pipe (6) which are communicated with the chamber. The invention has simple structure, which can change the motion direction of carrier gas containing volatile organic compound, buffer can form eddy flow to mix gas components completely and uniformly, thereby reducing the effects of test storehouse and pipeline pressure on the adsorption amount of the sampling pipe and confirming the uniform diversion of gas components, to improve the representation and reproducibility of the organics absorbed by the collecting pipe and confirm the check accuracy and uniformity.

Description

technical field [0001] The invention relates to a test instrument, in particular to a component for collecting volatile gas, in particular to a flow divider for a volatile organic compound test chamber. Background technique [0002] At present, various industrial and civil products such as flooring need to be tested for volatile organic compounds. First, the sample to be tested is placed in the test chamber for preheating and a certain flow of carrier gas is introduced, and the carrier gas releases the sample in the test chamber. The organic gas in the air is introduced into the organic gas sampling tube for adsorption and collection. If the organic gas derived from the carrier gas is directly absorbed and collected by the organic gas sampling tube one way, and the other way is directly discharged into the atmosphere, not only the pressure fluctuation of the experimental cabin and the pipeline will cause the sampling tube The fluctuation of the adsorption amount of the targe...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to use the organic compound test chamber to carry out the sample test, and design a method that can not only reduce the pressure fluctuation of the sampling port but also ensure the organic components in the carrier gas. A kind of splitter for volatile organic compound test chamber that can divide the flow evenly, thereby improving the representativeness and reproducibility of the organic matter adsorbed by the collection tube

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