Test tank frame and construction method for underwater inspection of diversion tunnel door slot in hydropower station

Abstract

The invention discloses a groove testing rack for underwater inspection of a diversion tunnel door gate groove of a hydropower station and a construction method. The groove testing rack includes a side column, a girder and a carling, wherein the girder includes a girder web and a girder flange; the side column includes a side column web and a side column flange; the carling includes a carling web and a carling flange; a sliding block is connected to the side column, a rib plate is arranged on the side column, and a side sliding block is connected to the rib plate; a lifting lug is connected to the girder, and a lifting shaft is connected to the lifting lug. The construction method for using the groove testing rack to perform underwater inspection comprises the following steps of: a, construction preparation; b, design of the groove testing rack; c, stress strain analysis of the groove testing rack; d, arrangement of a lifting system; e, installation of the groove testing rack; f, test running of the groove testing rack; g, inspection of the gate groove; h, inspection of a bottom sill. The construction method directly uses an underwater camera and other inspection devices to inspect the gate groove and the bottom sill by underwater shooting, so that the inspection on the diversion tunnel door gate groove and the bottom sill can be completed without raising the water level.

Description

technical field [0001] The invention relates to a tank test frame for underwater inspection of a diversion tunnel door groove of a hydropower station, and a construction method for underwater inspection of a diversion tunnel door groove by using the test tank frame. Background technique [0002] A hydropower station is a comprehensive engineering facility that converts water energy into electrical energy, also known as a hydropower plant. It includes a series of hydropower station buildings and various hydropower station equipment built for the use of water energy to produce electricity. Use these buildings to concentrate the drop of natural water flow to form a water head, collect and adjust the flow of natural water flow, and send it to the water turbine. Through the joint operation of the water turbine and the generator, the concentrated water energy is converted into electrical energy, and then through the transformer, switch Stations and transmission lines, etc. input ...

AI Technical Summary

Problems solved by technology

Since the water inlet gates of the diversion tunnel have been installed, they cannot be dismantled before the inspection, which has certain restrictions and influence on the inspection of the wear or erosion damage of the door slot and bottom sill

At the same time, general inspection equipment and instruments cannot be carried out under the state of high flow rate.

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