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Device and method for detecting SF6 mixed gas components

A technology of mixed gas and SF6, used in thermal excitation analysis, material excitation analysis, etc., can solve the problem of low measurement accuracy, achieve the effect of easy operation of the device, and avoid the effect of long-term engineering

Pending Publication Date: 2017-07-28
SHENYANG POLYTECHNIC UNIV
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  • Description
  • Claims
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Problems solved by technology

Ultrasonic method has good stability, but low measurement accuracy

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  • Device and method for detecting SF6 mixed gas components
  • Device and method for detecting SF6 mixed gas components
  • Device and method for detecting SF6 mixed gas components

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Embodiment Construction

[0035] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0036] A detection of SF 6 Devices for mixing gas components such as figure 1 As shown, it includes a high-voltage DC power supply, a measuring tank 1 for the gas to be detected and a spectral detection system.

[0037] High-voltage DC power supply including power frequency voltage regulator T 1 , power frequency test transformer T 2 , two current limiting resistors R 1 with R 2 , a high-voltage silicon stack D and a high-voltage capacitor C. Power frequency voltage regulator T 1 and power frequency real test transformer T 2 After connected with the first current limiting resistor R 1 , a high-voltage silicon stack D, and a high-voltage capacitor C are connected i...

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Abstract

The invention provides a device and a method for detecting SF6 mixed gas components, and relates to the technical field of detection of mixed gas components. The detection device comprises a high-voltage direct current power supply, a to-be-detected gas measurement tank and a spectrum detection system. The method comprises the following steps: filling to-be-detected mixed gases into the measurement tank, breaking the gases through high voltage direct current, and measuring SF6 mixed gas discharge plasma spectral characteristics by adopting a spectrum detection system, so as to detect the SF6 gas components. According to the device and the method for detecting SF6 mixed gas components provided by the invention, the amount of the needed to-be-detected gas sample is small during detection, the device is simple and convenient to operate, the time needed for later data processing procedure is short, normal operations of equipment are hardly influenced, and the SF6 mixed gas dielectric component change in the high-voltage product in long-term operation can be detected.

Description

technical field [0001] The invention relates to the technical field of detection of mixed gas components, in particular to a method for detecting SF 6 Apparatus and method for mixing gas components. Background technique [0002] Compared with pure SF6, SF6 mixed gas can effectively reduce the greenhouse effect of SF6 gas in electrical switchgear, and can better overcome the defect of liquefaction of pure SF6 gas caused by low ambient temperature, and can be effectively used as pure SF6 substitute gas in electrical switches. use in . However, the working pressure of the mixed gas is 0.6MPa~0.7MPa. During the long-term operation of the equipment, there will be defects such as leakage and composition changes, which will greatly affect the insulation strength of electrical equipment. Due to the change of gas composition, the filling ratio of each mixed gas will be caused. It is difficult to determine, and the composition of the mixed gas needs to be identified. [0003] At pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/73
CPCG01N21/73
Inventor 陈会利徐建源李璐维宋学彬林莘艾亚萍
Owner SHENYANG POLYTECHNIC UNIV
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