Volatile gas collecting trap and volatile gas purging and trapping device

A volatile gas, purging and trapping technology, used in gas treatment, combustible gas purification, combustible gas purification/reconstruction, etc., can solve the problem of low trap desorption efficiency, achieve high speed, and reduce the thickness of the volume. , the effect of high thermal conductivity

CN112973379AActive Publication Date: 2021-06-18广东盈峰科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2021-06-18

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Abstract

The invention relates to an environmental protection technology, and provides a volatile gas collecting trap and a volatile gas purging and trapping device. The volatile gas collecting trap comprises a trapping tube, a heat conduction layer and a heating layer; the trapping tube internally comprises an adsorbent, the trapping tube is U-shaped, the heat conduction layer wraps the trapping tube, the heating layer comprises an electric heating wire, and the heat generated by the electric heating wire is conducted to the trapping tube through the heat conduction layer; the electric heating wire comprises an electric heating wire body, an insulating heat conduction film and a tube shell; the tube shell comprises an inner tube cavity, the electric heating wire body penetrates through the inner tube cavity, and the insulating heat conduction film wraps the electric heating wire body and is located between the tube shell and the electric heating wire body. According to the trapping trap of a novel structure, the novel electric heating tube is adopted, rapid heating can be achieved, the actually measured heating rate can reach 30 DEG C / s, and the desorption efficiency of the trapping trap can be remarkably improved.
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Description

technical field

[0001] The present application relates to environmental protection technology, in particular to a volatile gas trap and a volatile gas purging and trapping device. Background technique

[0002] A purge and trap device is an instrument used to analyze volatile organic compounds in a sample. When working, the purge and trap device uses the purge gas to continuously pass into the purge tube to bubble, so as to drive the volatile components in the sample to escape with the purge gas, and then concentrate through the trapping device equipped with adsorbent; After purging for a certain period of time, the gas in the trapping device is introduced into the analyzer for analysis.

[0003] In the existing trapping device, a heating device is generally installed in the trapping tube, so as to heat the adsorbent in the trapping tube during the desorption step, thereby desorbing the volatile gas in it, but the desorption efficiency of the existing trapping device is rela...

Examples

Embodiment Construction

[0060]In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, but not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative work all belong to the scope of protection of this application. The detailed description of the embodiments is not intended to limit the scope of the invention as claimed, but to represent only selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the pr...