Glass syringe seal sampling auxiliary joint device used for insulating oil gas chromatography

Abstract

Provided is a glass syringe seal sampling auxiliary joint device used for insulating oil gas chromatography. The glass syringe seal sampling comprises a glass syringe A containing a sampling detection gas inside and a glass syringe B equipped with a sampling syringe needle. A sampling auxiliary joint which can be inserted from the head of the glass syringe and inserted into the glass syringe A is arranged on the glass syringe. A funnel-shaped syringe needle guider is arranged at the side end part of the sampling auxiliary joint. The funnel-shaped syringe needle guider and a rubber sealing cap of the head of the glass syringe A can achieve butt joint and clamping after plugging positioning. The sampling auxiliary joint comprises a joint support contacting the glass syringe A and achieving a fixed function. Windows are formed in two sides of the joint support and the windows do not affect observation view during sampling. The structure is simple, usage is convenient and reliable, the work efficiency of chromatography of dissolved gases in oil can be raised, and the problem of smooth transferring of gas between syringes is solved.

Description

technical field [0001] The invention relates to a glass syringe sealing sampling auxiliary joint device used for gas chromatographic analysis of insulating oil, and belongs to the technical field of gas chromatographic analysis of insulating oil of power transformers. Background technique [0002] Due to the design, manufacture, quality and operation of large power transformers, current transformers and other equipment, vicious accidents and failures of these equipment occur from time to time, seriously affecting the safe and stable operation of the power grid. In order to ensure the safe operation of transformers and other equipment and even the power grid, many different monitoring methods have been developed at home and abroad, among which gas chromatography is used to detect the content of various dissolved gases in insulating oil, so as to judge the type of internal faults of oil-filled electrical equipment and severity are most effective. [0003] Gas chromatography i...

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art, and provide a simple structure, convenient and reliable use, can improve the work efficiency of dissolved gas chromatographic analysis in oil, and solve the problem of smooth transfer of gas between injectors for insulating oil-gas phase Glass Syringe Sealed Sampling Auxiliary Joint Device for Chromatographic Analysis

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