SF6 decomposed gas detection device based on electrochemical sensor

Abstract

The invention discloses an SF6 decomposed gas detection device based on an electrochemical sensor. The SF6 decomposed gas detection device comprises a gas flow mass controller, an SF6 decomposed gas detection unit, a sucking pump, an exhaust pipe, a gas recharging unit, an electromagnetic valve module and an exhaust pipe. According to the invention, SF6 decomposed gas, gas purity, humidity and environment temperature can be detected; an electrochemical sensor measurement technology is adopted, so that the measurement sensitivity is improved, and the cost is reduced; the detection device can realize short-distance communication between a person and a mobile phone through Bluetooth, and can be controlled through touch screen operation of a color liquid crystal display screen; meanwhile, an automatic recharging function is achieved, so that gas is prevented from being directly discharged into the atmosphere, and the requirement for environment protection is met; and an exhaust pump is used for sucking air to clean the interior of the detection instrument, and the accuracy of next detection is guaranteed.

Description

technical field [0001] The invention relates to a gas detection device for decomposition products of SF6 gas, which includes detecting the decomposition products, purity, humidity and ambient temperature of SF6 gas. Background technique [0002] Pure SF6 gas is a colorless, odorless, non-toxic and non-flammable gas at normal temperature and pressure. It not only has stable chemical properties, but also has excellent insulation and arc extinguishing properties. It is an ideal insulating medium. The stage is widely used in high-voltage electrical equipment. During the operation of high-voltage electrical equipment, with the action of partial discharge and arc, SF6 gas will be decomposed to a certain extent, which not only reduces the insulation performance of the equipment, but also may cause serious accidents. . [0003] Therefore, the monitoring of electrical faults in substations can be achieved through the detection of partial discharges. According to the physical and ch...

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Problems solved by technology

Some researchers at home and abroad also choose to add compensation circuits or temperature control the sensor electrodes. Such measures make the structure complicated and the cost rises; the detection of SF6 decomposition gas may cause environmental pollution; it is difficult to handle a large amount of data when detecting gas

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