Self-calibrated type GIS indoor sulfur hexafluoride gas leakage monitoring and alarming system
A technology of sulfur hexafluoride gas and alarm system, which can be used in alarms, signal transmission systems, instruments, etc., can solve problems such as high cost of money, large labor consumption, and troublesome census work.
Active Publication Date: 2015-06-17
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
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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-calibrated type GIS indoor sulfur hexafluoride gas leakage monitoring and alarming system which comprises an online sulfur hexafluoride gas leakage monitoring host, a gas monitoring sensing unit, a gas electrical connector, a draught fan controller, a body infrared switch, an audible and visual alarm and a GPRS transmitting module. A central processing unit and a remote control center are remotely connected through the GPRS transmitting module. Under the remote trigger condition, the central processing unit for controlling the online sulfur hexafluoride gas leakage monitoring host sends a command; the GIS indoor sulfur hexafluoride gas leakage condition can be detected through the gas monitoring sensing unit; when the gas monitoring sensing unit is calibrated, the remote control center sends a self-inspection command to the central processing unit, and the central processing unit sends a signal to a relay and controls an electric ball valve to sequentially calibrate sulfur hexafluoride and oxygen; after the gas monitoring sensing unit is calibrated, the problem of zero wander of the sensing unit is solved, and the detecting accuracy is ensured.
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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Login to View More IPC IPC(8): G08B21/14G08C17/02G08B29/02G08B25/10
Inventor 汪献忠李建国王三霞
Owner HENAN RELATIONS