A diffusion type sf6 gas leakage monitoring device and method

A technology of gas leakage and monitoring device, which is applied in measurement devices, liquid/vacuum measurement for liquid tightness, and material analysis by optical means, etc. problems, to achieve the effect of easy continuous online monitoring, avoiding interference, and accurate output results
CN102998061BInactive Publication Date: 2015-10-21UNIV OF SCI & TECH OF CHINA
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
UNIV OF SCI & TECH OF CHINA
Publication Date
2015-10-21
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention provides a spreading type device and method for monitoring SF6 gas leakage. A device comprises an infrared light source (1), a condenser lens (2), a temperature detector (3), a conical light collection device (4), a measuring optical filter (5), a reference optical filter (6), a double-channel infrared detector (7), a reflection mirror (8), a reflection mirror seat (9), a support (10), a filter protection cover (11), a waterproof dustproof gas-permeable film (12), a signal conditioning module (13), an analog / digital (A / D) conversion module (14), a data processing module (15) and a light source driving module (16). The device and method is capable of continuously monitoring SF6 gas leakage on line, high in response and high in accuracy and reliability. The device has excellent waterproof dustproof performance, does not require a gas pump and can be widely applied to an SF6 gas leakage monitoring system.
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Description

technical field

[0001] The invention belongs to the field of SF6 gas leakage monitoring, and specifically relates to a high-precision SF6 gas leakage monitoring method and device that adopts a dual-wavelength infrared monitoring principle, a diffusion structure, self-contained temperature compensation, and digital signal output. Background technique

[0002] SF6 gas has been widely used in power systems due to its excellent insulating properties and arc extinguishing properties. However, the leakage of SF6 gas will pollute the indoor environment, which will seriously threaten the health and even life of the operators and maintenance personnel who enter the room. Therefore, good SF6 leakage gas monitoring technology is valued and pursued by practitioners in the power industry.

[0003] In the field of SF6 gas leakage monitoring, the advantages of infrared monitoring technology are gradually being recognized and valued. Infrared gas leakage monitoring technology is one of th...

Claims

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