Infrared quantitative leak detector of sulfur hexafluoride gas

Abstract

The invention relates to an infrared quantitative leak detector of sulfur hexafluoride gas. The output end of a universal detection head is connected with a sintered stainless-steel filter element, and the output end of the sintered stainless-steel filter element is connected with a non-dispersive infrared optical sulfur hexafluoride gas concentration sensor; the output end of the non-dispersive infrared optical sulfur hexafluoride gas concentration sensor is connected with an embedded system, and the output end of the embedded system is respectively connected with a concentration display, an audible and visual alarm, a lithium battery and a data output communication interface; the lithium battery is connected with a lithium battery charger; and an alarm threshold value set interface is arranged between the non-dispersive infrared optical sulfur hexafluoride gas concentration sensor and the embedded system. The infrared quantitative leak detector of sulfur hexafluoride gas quantitatively displays the concentrations of the sulfur hexafluoride gas in current monitored environment and judges the position with the highest concentration to be a leak position; and the infrared quantitative leak detector has the detection precision of 10PPM and has the leak early warning effect on power equipment of the sulfur hexafluoride gas.

Description

technical field [0001] The invention relates to the technical field of a leak detection device, in particular to an infrared quantitative leak detector for sulfur hexafluoride gas. Background technique [0002] With the widespread application of GIS (combined electrical appliances) and SF6 switches in power equipment, the leakage of SF6 gas occurs from time to time, which is one of the main safety hazards caused by the operation of high-voltage substations, and at the same time poses a threat to the life safety of maintenance personnel. Monitoring the concentration of SF6 gas in the GIS room is a requirement of electric power safety operation regulations. When GIS leaks, finding the leak point has become a major difficulty at present. At present, the method commonly used at home and abroad is a leak detector based on high-voltage discharge, but the leak detector is greatly affected by humidity, and needs to be zeroed every time. The discharge probe is easy to absorb dust, th...

AI Technical Summary

Problems solved by technology

At present, the method commonly used at home and abroad is a leak detector based on high-voltage discharge, but the leak detector is greatly affected by humidity, and needs to be zeroed every time. The discharge probe is easy to absorb dust, the discharge electrode is easy to wear, and the discharge path is different. The instrument has a short service life, cannot be quantified, and can only be measured qualitatively. When looking for leaks, it is impossible to find out the real location of the leak

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