Insulating oil dissolved gas preparation device and method based on pressure adaptive control

By employing a pressure adaptive control device and method in insulating oil testing, the circulation and automated regulation of gas within a closed system were achieved, solving the problems of low gas dissolution efficiency and safety hazards, and ensuring the stability and safety of the preparation process.

CN122363380APending Publication Date: 2026-07-10STATE GRID CHONGQING ELECTRIC POWER CO ELECTRIC POWER RES INST +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
STATE GRID CHONGQING ELECTRIC POWER CO ELECTRIC POWER RES INST
Filing Date
2026-05-15
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

Existing technologies have low gas dissolution efficiency in insulating oil, long preparation cycles, and manual operation makes it difficult to maintain consistent pressure conditions. Furthermore, the equipment is prone to leakage, posing safety hazards.

Method used

An insulating oil dissolved gas preparation device based on pressure adaptive control is adopted. Through the cooperation of the circulation loop between the circulation chamber and the detection container and the drive pump, the gas is repeatedly flowed and contacted with the insulating oil in the closed system. The detection sensor and control module realize automatic adjustment to ensure pressure stability and gas recycling.

Benefits of technology

It significantly accelerated the dissolution process of gas in insulating oil, shortened the time to reach the target concentration, ensured the consistency of preparation conditions for different batches of samples, avoided gas leakage and resource waste, and improved the safety and environmental friendliness of the experiment.

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    Figure CN122363380A_ABST
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Abstract

This application provides an apparatus and method for preparing dissolved gas in insulating oil based on pressure adaptive control. The apparatus includes a gas source, a circulation chamber, a detection container, a detection sensor, a drive pump, and a control module. The gas source provides the target gas. The circulation chamber is selectively connected to the gas source. The detection container holds the insulating oil and is selectively connected to the circulation chamber, forming a circulation loop. The detection sensor monitors the pressure within the circulation loop. The drive pump is connected to the circulation loop and drives the target gas to circulate between the circulation chamber and the detection container. This application, through the circulation loop formed between the circulation chamber and the detection container, combined with the forced drive of the target gas by the drive pump, enables the gas to flow repeatedly within a closed system and fully contact the insulating oil, significantly accelerating the permeation process of gas molecules into the oil and greatly shortening the time required to reach the target concentration through dissolution.
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