Stain-resistant split-flow trap filter element for gas chromatograph and intelligent maintenance early warning system

Abstract

The invention relates to the technical field of analytical instruments, in particular to a stain-resistant split-flow trap filter element for gas chromatograph and an intelligent maintenance early warning system.The filter element comprises a filter element shell and a filter element gland fixed to the end of the filter element shell, and a filter element inlet and a filter element outlet are formed in the two ends of the filter element shell respectively; a first filter layer and a filter element pressing ring are fixed on the inner side of the filter element outlet from near to far; a ventilation gap is formed in the filter element pressing ring; and the filter element shell is filled with an adsorbent. The filter element is of a multi-layer filter element structure formed by combining a close-fit pressing ring and a plurality of non-woven fabric filter layers, and the invention further relates to an intelligent maintenance early warning system which comprises a data acquisition module, a control unit and a display module. The problem that particles and dust break down a filter structure of the filter element can be completely eradicated, long-term efficient protection on the rear-end shunting proportional valve can be achieved, and the system has a good monitoring, early warning and prompting function on the shunting capturing filter element and other related parts.

Description

【Technical field】 [0001] The invention relates to the technical field of analytical instruments, in particular to a pollution-resistant shunt trap filter element for a gas chromatograph and an intelligent maintenance and early warning system. 【Background technique】 [0002] Gas chromatograph is an instrument for qualitative and quantitative analysis of multi-component complex mixtures by using chromatographic separation technology and detection technology. [0003] The trap is a gas purification device filled with adsorbents. It is often used for gas purification inside the gas chromatograph. When it is installed on the carrier gas inlet valve, it can effectively adsorb the impurity components in the carrier gas to ensure The purity of the carrier gas; when it is installed in the split flow of the split / splitless inlet and the outlet of the septum sweep gas, it can effectively adsorb the organic samples in the carrier gas and prevent the condensation of the sample in the sub...

AI Technical Summary

Problems solved by technology

[0005] The gas chromatograph itself lacks an intelligent detection method for the life of the split trap system, which makes it difficult for users to judge when to perform necessary replacement and maintenance to ensure long-term stable operation of the instrument. A small number of users maintain it according to their feelings / habits, and most users do not maintain it. Shut down for repairs until the instrument breaks down

[0006] The split trap system lacks clear status interactive prompts or early warnings, and the adsorbent itself has no indication effect, and it is impossible to tell whether it has failed with the naked eye. At the same time, the adsorbent is usually in a multi-layer sealed structure, which is not easy to disassemble and observe frequently

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