On-site dismantling and assembling method of large oil tank of fast gate for water inlet accident of high water head power station

Abstract

A method for on-site dismantling and assembling of a large-scale oil cylinder for an accident rapid gate of a water inlet of a high-water-head power station. The oil cylinder is hoisted out from the gate opening, turned over and laid flat on the dam surface, and the dismantling of the large-scale oil cylinder for an accident rapid gate is completed in a safe, efficient, and economical manner. The installation process overcomes the long maintenance period, heavy workload, difficult operation and high safety risks of disassembling and assembling large oil tanks in high water head power stations. The hose is convenient for the subsequent control of the cylinder piston rod and the lifting of the cylinder through the center hole of the cylinder support frame; before and after lifting, the lifting head is retracted and fixed to ensure the safe lifting of the cylinder. During the lifting process, the cylinder piston rod will not slide due to its own weight. Improve safety; use the turning tool to connect the upper end surface of the oil cylinder and the lifting lug, and cooperate with the door machine and the steam crane to realize the turning; adopt the method of quickly closing the gate to the fully closed position, and replace the oil pipe when the oil in the rod cavity of the oil cylinder is at least.

Description

Technical field [0001] The present invention belongs to the field of hydropower station shutter disassembly technology, involving a high-water head power station inlet surgery rapid gate large cylinder on-site disassembly method. Background technique [0002] The high-water head power station is provided with the rapid gate of water inlet accidents in its water-saving power system, and the water-up generator is flying, and the water-proof accident is rapidly closed. The safe operation of the power plant factory and equipment; to ensure that the accident quickly shutter quickly closed door, generally use the hydraulic hike-cutting machine structure to turn off control, so the safety and stable operation of the accident rapid gate is directly related to power plant and power station. Safety and benefit. [0003] For example, Xi Luoduade's waterport accident rapid gate has taken over in 2013. It has been running for 8 years. Some metal structures and accessories have reached the mai...

AI Technical Summary

Problems solved by technology

Due to the space limitation of the rapid gate layout of the water inlet accident of the power station, the oil cylinder of the hydraulic hoist does not have the conditions for on-site dismantling and maintenance. The oil cylinder must be hoisted from the existing station to the water inlet dam crest at an elevation of 610 meters before maintenance or returned to the factory for maintenance. The construction period is long , heavy workload, difficult operation and high safety risk

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