Negative-pressure transformer oil chromatographic analysis standard oil preparation device and method

Abstract

The invention discloses a negative-pressure transformer oil chromatographic analysis standard oil preparation device and method. The device comprises a standard oil preparation tank and an air cylinder, wherein the standard oil preparation tank is provided with an overflow opening; the top in the standard oil preparation tank is provided with an air bag; the air bag is connected with the air cylinder; a standard gas is arranged below the air bag; transformer oil is arranged below the standard gas; the overflow opening is positioned at the junction of the standard gas and the transformer oil and used for quantifying the transformer oil; the standard oil preparation tank is provided with a linear motor; two ends of the linear motor are connected to the bottom and the middle standard gas part of the standard oil preparation tank for oil and gas circulation. The negative-pressure transformer oil chromatographic analysis standard oil preparation device and method, which are provided by the invention, are used for overcoming the defects that transformer oil chromatographic analysis standard oil prepared at normal pressure is difficult to store, the concentration of standard oil prepared from standard gases with the same concentration is single, and the like, and have the characteristics of convenience in preparation, adjustable standard oil concentration range, and long-term storage of standard oil.

Description

technical field [0001] The invention relates to a negative pressure preparation device and method for transformer oil chromatographic analysis standard oil. It belongs to the technical field of power system machinery. Background technique [0002] At present, most of the standard oil preparation methods for transformer oil chromatographic analysis are prepared under normal pressure conditions. Many commonly used standard oil preparation devices can only prepare standard oils of a single concentration for standard gases of the same concentration. When it is necessary to prepare standard oils with different concentrations, often only the standard gas with different concentrations can be replaced, and the operation is cumbersome. At the same time, the standard oil prepared under normal pressure has a short validity period and is not easy to store. This is neither economical nor convenient. If the standard oil that has been placed for a long time is used, the quantitative stan...

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Problems solved by technology

[0002] At present, the standard oil preparation methods for transformer oil chromatographic analysis are mostly prepared under normal pressure conditions. Many commonly used standard oil preparation devices can only prepare standard oils of a single concentration for the same concentration of standard gas.

In the case of preparing standard oils with different concentrations, often only the standard gas with different concentrations can be replaced, and the operation is cumbersome

At the same time, the standard oil prepared under normal pressure has a short validity period and is not easy to store

This is not economical and inconvenient. If the standard oil that has been placed for a long time is used, it may affect the quantitative standard of transformer oil chromatographic analysis, resulting in errors in the analysis data.

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