Qualitative analysis method for unknown gas decomposition components of environment-friendly insulating medium

A technology of insulating medium and decomposing gas, which is applied in the field of analysis after the breakdown of insulating medium gas, and can solve the problems of not being able to provide evidence for latent fault tracking and detection

Pending Publication Date: 2018-12-14
GUIZHOU POWER GRID CO LTD
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  • Claims
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Problems solved by technology

[0003] The technical problem to be solved by the present invention is: to provide a qualitative analysis method for the unknown decomposed gas components of the environment-friendly insulating medium, so as t

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  • Qualitative analysis method for unknown gas decomposition components of environment-friendly insulating medium
  • Qualitative analysis method for unknown gas decomposition components of environment-friendly insulating medium
  • Qualitative analysis method for unknown gas decomposition components of environment-friendly insulating medium

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Embodiment Construction

[0036] What the present invention solves is the new environment-friendly insulating gas C 6 f 12 O and CO 2 After being charged into the equipment, in order to judge the latent faults inside the equipment, the qualitative identification of the unknown decomposition gas components is a new environmentally friendly insulating medium C 6 f 12 O and CO 2 Fault tracking after equipment operation provides a foundation for detection and judgment.

[0037] The decomposition characteristics of electronegative gases were analyzed by density functional theory (DFT) combined with experimental tests. DFT is a common quantum mechanical analysis method, which is used to analyze the internal physical and chemical processes of particle clusters containing complex electronic systems. It uses electron density as the basic parameter for calculation and is used to study the ground state properties of complex particle systems. Density functional theory originated in the mid-1960s. Based on the...

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Abstract

The invention discloses a qualitative analysis method for unknown gas decomposition components of environment-friendly insulating medium. The qualitative analysis method comprises the following steps:step 1, decomposition paths of C6F12O molecules are established; step 2, the energies required by the C-C bond breakage of the C6F12O molecules are respectively calculated; step 3, the energies required by the bond breakage of free radicals CF3, C2F5 and C3F7 in free radical reaction for generating F atoms or atomic bonds which are used for forming stable fluorocarbons CF4, C2F6, C3F8, C3F6, C4F10 and C5F12 are respectively calculated; step 4, standard gas is selected based on decomposition gases which are obtained in steps 1-3; and step 5, a gas insulating performance test platform is utilized for carrying out puncture test to the mixed gas of C6F120 and CO2 and analyzing the decomposition components. The invention solves the technical problems in the prior art that the gas decompositioncomponents of the environment-friendly insulating medium C6F120 are effectively analyzed after puncture; the basis for the tracking detection in subsequent hidden faults can not be provided; and thelike.

Description

technical field [0001] The invention belongs to the post-breakdown analysis technology of the insulating medium gas, and in particular relates to a qualitative analysis method for the unknown decomposed gas components of the environment-friendly insulating medium. Background technique [0002] Thanks to SF 6 The strong greenhouse effect of the gas is CO 2 23900 times the greenhouse effect, and can exist in the atmosphere for 3200 years, SF 6 The gas has been included in the Kyoto Protocol as one of the six major greenhouse gases. C 6 f 12 O is a new type of environmentally friendly insulating medium that has been widely concerned by researchers recently. Its greenhouse effect potential value (GWP) is close to 1, and its insulating performance is about that of pure SF 6 about 1.7 times that of a stronger alternative SF 6 gas potential. C 6 f 12 O and CO 2 After compounding, the greenhouse effect can be greatly reduced, and the insulation performance can be guarantee...

Claims

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Application Information

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IPC IPC(8): G01N30/02
CPCG01N30/02
Inventor 张英牧灝李军卫张晓星傅明利
Owner GUIZHOU POWER GRID CO LTD
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