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Apparatus and method for measuring distribution constant of dissolved gas in transformer oil

A transformer oil and dissolved gas technology, applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve the problems of online analysis limitations, achieve reliable methods, accurate quantification, and shorten the equilibrium time

Inactive Publication Date: 2008-05-14
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

At the same time, because the national standard GB7252 only gives the Ostwald (Ostwald) coefficient at 50°C, the online analysis is limited

Method used

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  • Apparatus and method for measuring distribution constant of dissolved gas in transformer oil
  • Apparatus and method for measuring distribution constant of dissolved gas in transformer oil
  • Apparatus and method for measuring distribution constant of dissolved gas in transformer oil

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Embodiment

[0040] Device of the present invention please refer to figure 1 . An oil-gas balance bottle 3 is placed in a constant temperature water bath 1 as a whole, and a magnetic stirrer 2 is installed at the bottom of the bottle. A magnetic stirrer is placed in the oil-gas balance bottle 3 to carry out constant temperature and stirring for the oil-gas balance bottle 3 at the same time. The constant temperature water bath 1 is composed of a water bath, a heating rod, a thermocouple (platinum resistance), a temperature regulator, and a circulating water pump. The water bath is made of non-magnetic materials, such as, but not limited to, stainless steel, aluminum alloy, glass, etc. Material. Those skilled in the art are familiar with about the constant temperature water bath, and it is easy to understand and imagine according to the above paragraph description. Therefore the present invention does not do too many introductions to this constant temperature water bath.

[0041] In the o...

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Abstract

A device for on-line testing solved gas distribution constant in transformer oil by gas-phase chromatography includes a constant temperature water-bath, a magnetic mixer, an oil-gas balance bottle, a six-way valve and an on-line gas-phase chromatograph to accurately test solved gas distribution constant in transformer oil under different temperatures.

Description

technical field [0001] The invention relates to a quantitative preparation device for dissolving gas samples in liquid and a quantitative analysis technique combined with gas chromatography, in particular to a technique for determining the distribution constant of dissolved gas in transformer oil by gas chromatography, in particular to a gas chromatographic method for dissolving gas in transformer oil A direct sample injection device and a sample injection method for online collection and one-time sample injection to complete normalized quantitative analysis. Background technique [0002] For a long time, dissolved gas analysis (DGA) in transformer oil has been recognized by countries all over the world as the best method for monitoring and diagnosing early failures of oil-filled power transformers and preventing catastrophic accidents. The standard methods for the analysis of dissolved gases in transformer oil in the laboratory mainly include vacuum degassing method, gas ex...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N30/04G01N30/84G01N30/02
Inventor 关亚风赵景红王海龙王涵文刘文民
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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