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On-line degasser for transformer oil gas

A technology of transformer oil and degassing device, which is applied in the directions of liquid degassing, chemical instruments and methods, separation methods, etc., can solve the problems of high system cost and great influence of the degree of collection of degassing gas, and achieves optimized control strategy and satisfied repeatability. and stability requirements, the effect of reducing the dead volume of space

Inactive Publication Date: 2013-08-21
WUHAN NARI LIABILITY OF STATE GRID ELECTRIC POWER RES INST
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AI Technical Summary

Problems solved by technology

This method uses the cylinder as the degassing chamber and gas collection chamber, and the dead volume of the space has a great influence on the collection degree of the degassed gas, and the system cost is high

Method used

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  • On-line degasser for transformer oil gas
  • On-line degasser for transformer oil gas

Examples

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Embodiment Construction

[0022] In order to better understand the present invention, the content of the present invention is further illustrated below in conjunction with the examples, but the content of the present invention is not limited to the following examples. Those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms are also within the scope of the claims listed in this application.

[0023] Explanation of symbols in the accompanying drawings: 4-oil discharge chamber, 6-exhaust outlet, 7-pressure sensor, 10-degassing chamber, 16-quantitative chamber, 3, 13, 15-liquid level sensor, 5, 11, 14 -Solenoid valve, H1-oil inlet, H2-oil outlet, H3-sample gas outlet.

[0024] like figure 1 As shown, this embodiment includes: an oil pump, an air pump, an air compressor, a quantitative chamber, a degassing chamber, an oil discharge chamber, a pressure sensor, a liquid level sensor, a pipeline, a solenoid valve and an electric control device, t...

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Abstract

The invention relates to an on-line degasser for transformer oil gas. The on-line degasser is characterized by comprising an oil pump, an air pump, a quantification chamber, a degassing chamber, an oil discharging chamber, an air compressor, a pressure transducer, liquid level sensors, pipelines, solenoid valves and an electric control unit. The oil pump and the air pump use the air compressor as a power source, are controlled in virtue of cylinders and replace a pre-posed oil circulating pump. The quantification chamber, the degassing chamber, the oil discharging chamber and the pipeline are integratedly designed, and integrated installation of the sensors and the solenoid valves is realized. The whole on-line degasser realizes external communication and modularized control based on an independent control system. A discharged oil liquid level sensor is additionally mounted to guarantee safe return discharge of an oil sample. The on-line degasser for transformer oil gas provided by the invention has the advantages of simplified elements, optimized control, integrated design of used parts, reduction in hardware cost and debugging time, capacity of realizing multiple vacuum degassing of transformer oil in a short period of time and accordance with requirements for repeatability and stability of a degassing rate.

Description

technical field [0001] The invention relates to the technical field of substation state monitoring, in particular to an online degassing device for gas in transformer oil. Background technique [0002] In the power system, the on-line monitoring technology of gas in transformer oil has been widely and effectively applied. On-line monitoring and analysis of insulating oil in transformers has become an important means for judging early latent faults of transformers and other power equipment, and for effective on-line monitoring and on-line maintenance. The main content of online monitoring of gas in transformer oil includes: oil sample collection, oil-gas separation, gas analysis, fault judgment and other parts. Among them, there are three main methods for oil and gas separation: membrane permeation method, dynamic headspace degassing method, and vacuum degassing method. Membrane permeation degassing method is low in cost, but the degassing rate is low and time-consuming. Cu...

Claims

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Application Information

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IPC IPC(8): B01D19/00
Inventor 张杰姚翔宇董勤
Owner WUHAN NARI LIABILITY OF STATE GRID ELECTRIC POWER RES INST
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