Infrared quantitative leak detector of sulfur hexafluoride gas
A technology of sulfur hexafluoride gas and leak detector, which is applied in the direction of liquid/vacuum measurement, instrument, measurement of electricity, etc., which can solve the problems of inability to quantify, short service life of the instrument, and easy wear of discharge electricity.
Active Publication Date: 2012-07-18
常州合众电气有限公司
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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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[0012] The present invention will now be described in further detail in conjunction with the block diagram. These block diagrams are all simplified schematic diagrams, which merely illustrate the basic structure of the present invention in a schematic manner, so they only show the components related to the present invention.
[0013] Such as figure 1 The shown sulfur hexafluoride gas infrared quantitative leak detector includes a leak detection pistol and a leak detection host. The leak detection pistol includes a universal probe 1, a stainless steel sintered filter element 2, a concentration display 6 and an acousto-optic alarm 5, leak detection The host includes a lithium battery charger 9, a lithium battery 8 connected to the lithium battery charger 9, an alarm threshold setting interface 7, a non-dispersive infrared optical sulfur hexafluoride gas concentration sensor 3, an embedded system 4, and a data output communication interface 10. The output end of the universal probe...
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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, anaudible 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 detector, in particular to a sulfur hexafluoride gas infrared quantitative leak detector. Background technique [0002] With the widespread application of GIS (combined electrical appliances) and SF6 switches in power equipment, SF6 gas leakage occurs from time to time, which is one of the main safety hazards to the operation of high-voltage substations, and it also threatens the life and safety of maintenance personnel. Monitoring the concentration of SF6 gas in the GIS room is a requirement of the power safety operation regulations. When the GIS leaks, finding the leakage point has also become a major current difficulty. 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...
Claims
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IPC IPC(8): G01N21/35G01M3/12G01R31/36G01M3/04
Inventor 杨小明王新军陈启飞蔡刚
Owner 常州合众电气有限公司