Self-calibration gis indoor sulfur hexafluoride gas leakage monitoring and alarm system
A technology for monitoring sulfur hexafluoride gas and gas, which can be used in alarms, signal transmission systems, instruments, etc., and can solve problems such as labor-intensive, troublesome census work, and large-capital cost.
Active Publication Date: 2017-07-21
HENAN RELATIONS
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Problems solved by technology
Such a long census testing cycle requires a lot of manpower, and at the same time, it also needs to spend a lot of money to meet the needs of testing equipment, which brings great trouble to the census work
Method used
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[0018] Such as figure 1 As shown, the present invention includes an online sulfur hexafluoride gas leakage monitoring host, a gas monitoring sensor unit, a gas-electric connector, a fan controller, a human body infrared switch, an audible and visual alarm, and a GPRS transmission module. The leakage monitoring host is connected to the gas monitoring sensor unit through the gas-electric connector, and the online sulfur hexafluoride gas leakage monitoring host is also connected to the fan controller, human body infrared switch, sound and light alarm and GPRS transmission module, and the GPRS transmission module is connected to the remote control center .
[0019] Such as figure 2 As shown, the online sulfur hexafluoride gas leakage monitoring host includes a central processor and a self-calibrating gas circuit. The central processor serves as the data sampling and processing mechanism of the system and controls the data transmission of external devices. The relay control termi...
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The invention discloses a self-calibrating GIS indoor sulfur hexafluoride gas leakage monitoring and alarm system, which includes an online sulfur hexafluoride gas leakage monitoring host, a gas monitoring sensing unit, a gas-electric connector, a fan controller, and a human body infrared switch , sound and light alarm and GPRS transmission module, remotely connect the central processor and the remote control center through the GPRS transmission module, and in the case of remote triggering, the central processor that controls the online sulfur hexafluoride gas leakage monitoring host sends commands; The gas monitoring sensing unit detects the leakage of sulfur hexafluoride gas in the GIS room. When the gas monitoring sensing unit is calibrated, the remote control center sends a self-test command to the central processor, and the central processor sends a signal to the relay to control the electric ball valve in turn. Sulfur hexafluoride and oxygen are calibrated, and the gas monitoring sensing unit is calibrated to overcome the zero drift problem of the sensing unit and ensure the accuracy of detection.
Description
technical field [0001] The invention relates to the field of GIS indoor sulfur hexafluoride gas leakage detection, in particular to a self-calibrating GIS indoor sulfur hexafluoride gas leakage monitoring and alarm system. Background technique [0002] SF 6 Because of its excellent insulation and arc extinguishing properties, gas is widely used in GIS equipment in urban power grid substations. However, due to the influence of factors such as differences in manufacturing quality, unreasonable installation, and aging of materials, SF 6 Electrical equipment is prone to leakage, and the leaked SF 6 The gas and its decomposition products accumulate in the lower indoor space, causing local hypoxia. At the same time, the decomposition products contain a variety of toxic gas components, which pose a serious danger to the life safety of the staff entering the room. [0003] my country's relevant standards and codes of conduct clearly state that SF 6 Gas leak monitoring regulation...
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IPC IPC(8): G08B21/14G08C17/02G08B29/02G08B25/10
Inventor 汪献忠李建国王三霞
Owner HENAN RELATIONS