Preparation method and device of gas capable of replacing sulfur hexafluoride for running-in test

A technology for preparing sulfur hexafluoride, which is applied in the direction of measuring devices, testing of mechanical parts, testing of machine/structural parts, etc., can solve the problems of restricting production efficiency and long process time, and achieve the elimination of sulfur hexafluoride, The effect of shortening working hours and improving work efficiency

Pending Publication Date: 2021-09-07
湖南长高电气有限公司
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Problems solved by technology

[0003] At the same time, in high-voltage electrical equipment, the mechanical running-in of the inflatable unit is an indispensable part of production inspection, and the process of

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  • Preparation method and device of gas capable of replacing sulfur hexafluoride for running-in test
  • Preparation method and device of gas capable of replacing sulfur hexafluoride for running-in test

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[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0020] see Figure 1~2 , in the embodiment of the present invention, the preparation method and device of the gas that can replace sulfur hexafluoride for the running-in test, the clean gas formed after the air is filtered by the combined air cleaning device, is directly charged into the product and then the mechanical running-in operation test is carried out. Eliminate the original process of vacuuming→inflating sulfur hexafluoride→recovering sulfur hexafluor...

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Abstract

The invention discloses a preparation method and device of gas capable of replacing sulfur hexafluoride to carry out a running-in test, air is filtered by a combined air cleaning device to form clean gas, and the clean gas is directly filled into a product to carry out a mechanical running-in operation test. According to the electrical equipment mechanical characteristic running-in test process, the sulfur hexafluoride is replaced by the clean air, firstly, the problem that after sulfur hexafluoride gas is used for mechanical property running-in, due to the fact that a sulfur hexafluoride recovery device cannot completely recover residual sulfur hexafluoride in a product, the residual sulfur hexafluoride is released into air when a cover is opened for cleaning can be thoroughly solved, and the protection on the atmospheric environment is greatly facilitated; and 2, after the clean air is adopted to carry out a mechanical characteristic running-in test, the process is optimized from the original steps of product vacuumizing (3h), sulfur hexafluoride inflation (0.5 h) and sulfur hexafluoride recovery (0.75 h) to direct clean air inflation/deflation (0.5 h), process waiting and environmental damage are avoided, the time of a single product can be saved by 3.75 hours, and the production period is shortened to a great extent.

Description

technical field [0001] The invention relates to the technical field of gas preparation, in particular to a method and device for preparing a gas that can replace sulfur hexafluoride for running-in tests. Background technique [0002] Sulfur hexafluoride, as an ultra-high voltage insulating material, is widely used in the gas insulation of electronic and electrical equipment. However, sulfur hexafluoride gas, carbon dioxide, methane, nitrous oxide, hydrofluorocarbons, and perfluorocarbons are collectively called the "six major greenhouse gases" that affect the greenhouse effect, of which CO2 has the greatest impact on the greenhouse effect, accounting for 60%. The impact of sulfur hexafluoride gas accounts for only 0.1%, but the impact of a molecule of sulfur hexafluoride gas on the greenhouse effect is 25,000 times that of carbon dioxide molecules. At the same time, the life of sulfur hexafluoride gas emitted in the atmosphere is long, about 3400 years. Today, about 21 bil...

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Application Information

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IPC IPC(8): G01M13/00
CPCG01M13/00
Inventor 邹骞杨伟
Owner 湖南长高电气有限公司
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