Leakage plugging device and control method for sf6 gas insulated power equipment

Abstract

A SF6 gas insulated power equipment leakage plugging device and a control method thereof are provided. The device includes a filling gun, the filling gun comprising a handle, a trigger and a frame, the lower end of the handle is provided with a plugging agent suction pipe, the rear end of the gun frame is provided with an SF6 gas suction pipe, a nozzle is arranged at the front end of the gun frame, a plug agent filling pump and a gas filling pump are arranged inside the handle, the plugging agent suction pipe is connected with the inlet of the plugging agent filling pump, the outlet of the plugging agent filling pump is connected with the nozzle through a first pipeline, the SF6 gas suction pipe is connected with the inlet of the gas filling pump, and the outlet of the gas filling pump isconnected with the nozzle through a second pipeline. The device has the advantages of simple structure, convenient operation, gas compensation and rapid plugging under the condition of leakage of SF6gas insulated electric power equipment with pressure, uniform plugging agent injection, and guaranteed plugging effect.

Description

technical field [0001] The invention relates to a gas leakage sealing technology, in particular to a SF6 gas-insulated power equipment leakage sealing device and a control method thereof. Background technique [0002] SF6 gas has strong insulating properties, so it is widely used in high-voltage electrical equipment. With the popularization of applications, the leakage of SF6 gas-insulated power equipment has become a major problem in the power industry. [0003] SF6 leakage will greatly reduce the insulation performance of the equipment and affect the normal operation of the power system. In the prior art, plugging technology is often used for remediation, such as a plugging technology for leakage of SF6 gas-insulated power equipment disclosed in Chinese patent 200710037563.8. The technology is to mix the mixture formed by mixing nano-powder filler and curing agent into the base material, and apply it on the surface of the leakage part. After the mixture is partially dried,...

AI Technical Summary

Problems solved by technology

[0005] (1) The equipment is often under pressure, and the sealing agent is directly coated, and the bonding effect is not ideal;

[0006] (2) The coating process is often manually operated, and the coating amount is often uneven;

[0007] (3) Direct coating, SF6 inside the equipment is not replenished, and for power equipment with large leakage, the later operation effect is likely to be affected

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