Non-stop maintenance method for large drain valve

Abstract

The invention discloses a non-stop maintenance method for a large drain valve. The non-stop maintenance method comprises the steps that 1, materials are transported; 2, a bracket is manufactured; 3, the materials are transferred; 4, a support is erected; 5, rack displacement is carried out; 6, an oil cylinder and a gate are integrally hoisted; 7, a fault oil cylinder is dismantled; 8, a new oil cylinder is installed; and 9, a water delivery valve is debugged. By means of the method, a water delivery gate can be well overhauled under the condition that a ship lock does not stop sailing, and particularly, installation precision can be guaranteed, sailing stopping adopted due to overhauling of the water delivery valve is greatly reduced, quite high benefits are achieved, and the influence caused by shipping suspending of the gate is greatly reduced; and meanwhile, the problems of complicated working procedures, difficulty in overhauling and influence of shipping suspending on social life and economy during non-shipping-suspending construction of the water delivery gate are well solved, the technical standards of design, operation and maintenance units are met, overhauling requirements are met, and good social benefits are achieved.

Description

technical field [0001] The invention relates to the technical field of inspection and repair of water delivery valves in ship lock engineering, in particular to a non-stop inspection and repair method for large-scale drain valves. Background technique [0002] Gate valves are ubiquitous in ship lock engineering. The opening and closing mechanisms of gate valves can be divided into mechanical transmission hoist and hydraulic hoist structure. Due to the simple structure of the hydraulic hoist, stable operation, and other advantages, It is widely used. In the ship lock project, the water delivery valve is generally located at the synchronous position of the working gate, and is located at the head of the lock. Since the bank of the head of the lock is mostly equipped with greening, stone pavement or a command center, etc., during the maintenance of the water delivery gate, It is necessary to put down the overhaul gate ship lock, stop the voyage for overhaul, and easily cause da...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a non-stop inspection and maintenance method for large-scale drain valves, so as to solve the problems in the above-mentioned background technology, such as suspension of navigation for maintenance, easy damage to green pavement, complex construction procedures, and difficult maintenance.

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