Oil leakage plugging tool for plate type butterfly valve of electric transformer

Abstract

The invention discloses an oil leakage plugging tool for a plate type butterfly valve of an electric transformer. The tool comprises a manual hydraulic pump, a pressure gauge, a high-pressure oil pipe, a glue injection gun head, a glue injection valve, a flange clamp and a sealing rubber rod. The pressure gauge is arranged on one side of the manual hydraulic pump, one side of the pressure gauge isprovided with the high-pressure oil pipe and is in pipeline communication with one end of the high-pressure oil pipe, the other end of the high-pressure oil pipe is connected with the glue injectiongun head, one end of the glue injection gun head is provided with the glue injection valve, one side of the glue injection valve is provided with the flange clamp, the glue injection gun head is connected with the flange clamp through the glue injection valve, and the sealing rubber rod is arranged inside the glue injection gun head. A sealed cavity can be formed at the periphery of the leaked plate type butterfly valve under the condition that operation of the transformer is not stopped by using the special flange clamp, and transformer oil can be prevented from leaking. A small number of construction personnel are needed, tool equipment is simple, electricity leakage is eliminated, the power failure of a main transformer is not needed, and normal operation of the transformer is guaranteed; and maintenance is easy and convenient, plugging time is short, the investment is low, the economic benefit is high, the practicability is strong, and the application range is wide.

Description

technical field [0001] The invention relates to a butterfly valve oil leakage plugging tool, in particular to a power transformer plate type butterfly valve oil leakage plugging tool, which belongs to the technical field of power transformer equipment. Background technique [0002] During the manufacturing process of the transformer, due to poor casting, assembly process, product and welding quality, air holes, desoldering phenomena, sand holes, virtual welding, aging of sealing rubber pads, etc. are caused to cause oil leakage of the transformer. In the leakage of transformers, the sealing rubber pads of plate butterfly valves are mostly aging. Due to the poor oil resistance of the sealing rubber pads, the aging speed is faster, especially at high temperatures, and the aging speed is faster, which can easily cause aging, cracking and deformation of the sealing rubber pads. Cause oil leakage from the transformer. Due to the pressure inside the transformer oil, there is no e...

AI Technical Summary

Problems solved by technology

At present, measures such as strengthening the pre-tightening force of the connecting bolts and replacing them are usually used to deal with the leakage of the plate butterfly valve. However, due to the deformation of the clamped bolts, the aging of the gasket, and the decline in the resilience, the oil leakage cannot be solved, and the replacement of the plate butterfly valve requires power outage of the transformer and on-site hoisting. , reduce the service life of equipment and increase the working intensity of operators

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