Device for cleaning replaced insulators

Abstract

The invention provides a device for cleaning replaced insulators and belongs to the technical field of insulator cleaning in electric power facilities. A tank unit is arranged below a portal frame and comprises a cleaning tank and a flushing tank arranged in the front-back direction. A sliding block transmission mechanism is arranged at the upper end of the portal frame. A lifting driving motor provided with a lead screw is installed at the upper end of a sliding block. A U-shaped seat and the lead screw are matched to form a lead screw-sliding block transmission mechanism. Supporting arms are arranged at the two vertical arm ends of the U-shaped seat. A clamping set unit comprises a base plate, a static clamping plate fixed to the base plate, and a movable clamping plate correspondingly matched with the static clamping plate. The movable clamping plate is buckled on the static clamping plate through a movable structure. A fixing part is arranged between the movable clamping plate and the base plate, and the movable clamping plate and the base plate are fixedly connected through the fixing part. By the adoption of the device for cleaning the replaced insulators, batched concentrated cleaning can be conducted on the detached insulators, in the cleaning process, workers are mainly responsible for mounting and dismounting the insulators, the workers do not need to stay on the site all the time in the cleaning process, the working intensity of the workers can be relieved, and the cleaning operation efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of cleaning insulators in power facilities, in particular to a device for cleaning replaced insulators. Background technique [0002] The pollution flashover process of an insulator is a thermal breakdown process that requires a certain amount of time and a certain amount of electric energy to accumulate. The three elements of pollution flashover are: pollution source, fog and rain, and power frequency voltage. The mechanism of pollution flashover has four stages: pollution on the surface of the insulator, moisture on the surface of the insulator, formation of a dry layer on the surface by partial discharge, formation of an arc, and finally flashover along the surface. The specific process is: after the surface of the insulator is damp, the dirty layer becomes a dry layer after being wet. Under the action of operating voltage, leakage current is generated on the surface and Joule heat is generated. Dry th...

AI Technical Summary

Problems solved by technology

In the weather of heavy fog, drizzle and melting snow, the air humidity is high, and the dirt on the insulating surface absorbs moisture. These dirty substances dissolve in the water and form an electrolyte covering film, which greatly reduces the insulation performance of porcelain parts and insulators, resulting in surface leakage current. increase, when the leakage current reaches a certain value, it will cause a flashover accident

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