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

A disassembly method and water inlet technology, applied in hydroelectric power stations, hydroelectric power generation, water conservancy projects, etc., can solve problems such as heavy workload, long construction period, hydraulic hoist cylinders that do not have the conditions for on-site disassembly and maintenance, and achieve The effect of improving safety

Active Publication Date: 2022-03-18
CHINA YANGTZE POWER
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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

Method used

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

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Embodiment Construction

[0046] Such as Figure 1 ~ 9 Among the high-water head power stations, the fast gate of the inlet accident, the lack of large cylinders, including the following steps:

[0047]Step 1, install protection, set a safety isolation fence in the opening and clutch pump room hole and accident, fast gate orifice, in the door slot, facing the installation guardrail and anti-fall equipment; its purpose is to implement the maintenance Effective protection of the area within the region.

[0048] Preferably, in step 1, a specialized protective isolation fence is set in the EL.610 platform opening and closing machine pump room hole and EL.606 pump house.

[0049] Step 2, the platform is set, and the full-hand repair platform 7 is set on the maintenance platform 7 of the cylinder 6 clock portion; its purpose is to ensure that the maintenance area is safe.

[0050] Preferably, it is a working platform for maintenance personnel working on the EL.577 cantilete platform 8 in the gate opening, which c...

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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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02B9/00E02B9/02
CPCE02B9/00E02B9/022Y02E10/20
Inventor 包唐伟刘文忠董万里刘文亮代飞毛延翩席前伟侯春尧
Owner CHINA YANGTZE POWER
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