Two-way water blocking gate valve type working gate

Abstract

The invention discloses a two-way water blocking gate valve type working gate which comprises a plane gate, a hydraulic hoist and water stopping components, wherein the plane gate is inserted into a gate slot; the hydraulic hoist is used for driving the plane gate to move up and down along the gate slot; the water stopping components are arranged on a water sealing seat plate of the plane gate; hyperbolic tread simply supported wheels which are matched with the track of the gate slot in a rolling way are arranged on edge beams at two sides of the plane gate positioned at the downstream side; sliding blocks which are matched with the track of the gate slot in a sliding way are assembled on edge beams at two sides of the plane gate positioned at the upstream side; a top water stopping component and side water stopping components are arranged on the board surface at the downstream side of the plane gate; a bottom water stopping component is arranged at the bottom edge of the plane gate; and the end part of a piston rod of a hydraulic oil cylinder is hinged with a lifting lug at the top of the plane gate through a self-lubricating joint bearing. The invention solves the problem of blocking upstream water and downstream water sand by the working gate under the condition of higher content of tail water in silt-laden rivers, optimizes the arrangement of hydraulic structure, provides the convenience for later engineering operation, and simultaneously saves the cost.

Description

technical field [0001] The invention relates to a working gate of a reservoir, in particular to a two-way water retaining valve type working gate. Background technique [0002] In order to ensure the normal water diversion and power generation of the reservoir power station, sand discharge holes and sand discharge bottom holes are respectively arranged on the left and right sides of the reservoir power station to form a pivotal sand discharge system. The inlet of the sand discharge system is equipped with inspection gates and emergency gates, and the outlet is equipped with working gates and export maintenance gates in turn. In order to adjust the discharge flow and ensure that the sand funnel is flushed forward by the discharge structure, the working gate of the sand discharge system needs to be opened and closed frequently or partially opened to discharge, and the working gate should have the function of blocking upstream water and downstream water and sand. The tradition...

AI Technical Summary

Problems solved by technology

The traditional arc-shaped working gate has the advantages of stable partial opening operation and small opening and closing force, but for the reservoir area with high tail water downstream, the arc gate hinges and arms are in the tumbling water flow, which affects the stable operation of the gate and cannot It meets the operation requirements of two-way water retaining and downstream sediment protection, and the long-term soaking of arc door hinges in water also affects the safe operation of the equipment

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