Industrial gas on-line sampler

Abstract

The invention provides a gas on-line detection sampler. The sampler comprises a gas sample channel and a flow control part, and a gas sample heating and temperature control part. Thereinto, the gas sample channel comprises a sampling joint, a gas chamber, a flow regulating valve and an output switch valve; a heating chamber comprises an electrothermal core and a temperature relay which are disposed in the closed heating chamber, and a heating power line is led out in an isolating and explosion-proof manner. The sampler is directly mounted on an industrial apparatus, and is applicable to different interfaces only by changing the joint. In an operating temperature of about 60 DEG C, the sampler not only can ensure the stable output of the sample gas which is easy to be throttled and liquefied, but also can prevent air pollution and is explosion-proof, and can be directly mounted in sites with inflammable and explosive industrial gas. The sampler has various functions such as high pressure resistance, liquefaction resistance, explosion resistance, flow regulation, output switch, changeable inlet joint, low adsorption, easy purging, air pollution resistance and the like, and is widely applicable to the on-line sampling and transportation of various industrial gas below 25 MPa.

Description

technical field [0001] The invention relates to an industrial gas on-line sampler, in particular to a multifunctional sampler suitable for both general on-line detection and sampling, and for on-line sampling of industrial gas that is easy to throttling and liquefied. Background technique [0002] With the rapid development of domestic electronics, chemical industry, natural gas, and electric energy industries, the requirements for gas quality detection technology are getting higher and higher. When some gas detectors are used for industrial online detection, if the sample gas flow fluctuates too much, it will directly lead to inaccurate detection data, and sudden air flow fluctuations may even damage the detection equipment. This kind of situation mostly occurs in the process of sampling industrial gases with high gas source pressure and easy liquefaction during decompression, such as natural gas filling stations with a gas source pressure of 20MPa, especially in winter, t...

AI Technical Summary

Problems solved by technology

The water and oxygen in these two parts will constantly reach a dynamic equilibrium with the passing sample gas, and it will be difficult to blow it out for a long time. This kind of sampler made of a membrane pressure reducer will lead to extremely low test results when used for testing and sampling. big mistake

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