SF6 gas micro-water treatment device

Abstract

The invention provides an SF6 gas micro-water treatment device. The SF6 gas micro-water treatment device comprises a first connector, a first moisture measuring instrument, a first pressure gauge, a manual valve, a gas flow meter, a filtering mechanism, a drying mechanism, a gas compression unit and a second connector which are sequentially connected in series through gas pipes. The invention provides the SF6 gas micro-water treatment device. Through the arrangement of the series structure, the cyclic treatment on moisture and decomposers in SF6 gas is realized, the SF6 gas in the equipment can be ensured to be always in a stable range, a circuit in the equipment can be better protected, the SF6 gas can be connected with the equipment for a long time to realize real-time treatment, moisture and decomposers can be treated at any time, and the risk hidden danger caused by treatment lag in the prior art is avoided.

Description

technical field [0001] The invention belongs to the field of electrical equipment, in particular to a SF 6 Gas micro water treatment device. Background technique [0002] SF 6 Gas is a stable inert compound with excellent insulation and arc extinguishing properties, and is widely used in power system equipment. [0003] SF 6 The gas contains impurities such as air and moisture. Under certain conditions, such as arc and spark discharge, the fluorine-sulfur compound produced by electrolysis reacts with water to generate highly corrosive chemical substances, including SO 2 and H 2 S, will corrode metal parts and insulating materials, shorten the service life of equipment, and affect SF 6 Gas purity and its electrical properties. Moreover, excessive moisture will condense on the surface of the solid medium, and flashover will occur after the equipment is in operation, and even cause an explosion in severe cases. Therefore, the micro-water test as the SF 6 The must-test i...

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Problems solved by technology

[0004] Publication number is that the Chinese patent of CN106000022B provides a kind of through to SF 6 The gas in the air chamber of the electrical equipment is circulated and dried and the decomposition product is filtered, so that the SF 6 SF for non-stop maintenance of electrical equipment 6 On-line micro-water treatment method for electrical equipment and its treatment device, but the air inlet and outlet of the device share a joint, which makes it possible to extract SF from the equipment 6 Gas and backfill SF 6 The gas process can only be carried out alone, and cannot be recycled. When extracting SF 6 During the process of gas processing, it will inevitably lead to SF in the equipment 6 The gas produces a pressure drop, resulting in a reduction in insulation and arc extinguishing effects, which is not conducive to the long-term operation of the equipment. Therefore, in actual production, SF 6 Gas micro-water drying treatment is carried out on a regular basis, or when the micro-water index in the equipment reaches a certain level, it is not carried out in real time, and has a hysteresis, and there is inevitably a trace amount of SO in the equipment. 2 and H 2 S, if the circuit in the equipment is corroded, the loss is huge

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