A multi-transformer non-electric quantity gas on-line monitoring device

By designing a multi-transformer non-electrical gas online monitoring device, which uses an adsorption chamber and heating unit to separate gases, combines a fan and a reciprocating pump for quantitative sampling, and employs a chromatographic separation column and a gas concentration detector, the device solves the problems of low device utilization and cross-interference in existing technologies, and achieves efficient and accurate gas composition analysis.

CN119618759BActive Publication Date: 2026-06-26ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY
Filing Date
2024-12-02
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing online monitoring devices for non-electrical gas in transformers can only detect a single transformer, resulting in low device utilization. Direct detection of gas without separation leads to cross-interference issues, and sampling over long distances consumes a large amount of gas, making it impossible to analyze gas composition in a timely and accurate manner.

Method used

A multi-transformer non-electrical gas online monitoring device was designed. The gas is separated and detected through an adsorption chamber and a heating unit. A fan and a reciprocating pump are used to achieve quantitative sampling and component analysis of the gas. A chromatographic separation column and a gas concentration detector are used for accurate detection.

Benefits of technology

This technology enables online gas monitoring of multiple transformers, reducing sampling costs, eliminating cross-interference, improving the accuracy of test results, and reducing the waste of human and material resources.

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Abstract

The utility model relates to an on-line monitoring device for non-electric quantity gas of multiple transformers, relates to the on-line monitoring technical field of oil-immersed transformer state, through the adsorption of gas adsorbent, the delivery adsorbent particle, the last heating desorption method, without the adsorption passivation, purging and other operations of gas pipeline, solve the problem that the sample gas consumption is relatively large in the above operation in long-distance gas pipeline, be applicable to low gas quantity's transformer non-electric quantity gas sampling, a on-line monitoring device realizes the on-line quantitative analysis of the component of a small amount of gas in multiple transformer gas relays, reduces the cost, effectively reduces the human and material resources waste caused by the frequent on-site troubleshooting of operation and maintenance personnel due to light gas misoperation.
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