Hydraulic pipeline laying structure and connection system for hydraulically driven movable dam

Abstract

The invention provides a hydraulic pipeline laying structure for a hydraulic drive movable dam and a connecting system comprising the hydraulic pipeline laying structure. The hydraulic pipeline laying structure comprises a laying ditch, hydraulic pipelines, a solid packing medium and a second-stage cast-in-place concrete seal cover; the second-stage cast-in-place concrete seal cover covers the laying ditch, and forms an airtight chamber together with the laying ditch; the hydraulic pipelines are arranged in the airtight chamber; the second-stage cast-in-place concrete seal cover; is hermetically connected with the laying ditch; and remaining space in the chamber is filled with the solid packing medium, and a detachable packing structure is formed. By adopting the technical solution of the invention, when part of the hydraulic pipelines are damaged, the damaged hydraulic pipelines can be conveniently maintained or replaced quickly, maintenance or replacement time of the hydraulic pipelines is shortened, and efficiency is increased; meanwhile, the cast-in-place concrete seal cover can be prevented from being washed away by water flow, therefore the phenomenon that the hydraulic pipelines are seriously corroded due to the fact that the solid packing medium among the hydraulic pipelines under the second-stage cast-in-place concrete seal cover falls off to cause the hydraulic pipelines to be in direct contact with the water flow is avoided.

Description

technical field [0001] The invention relates to the technical field of water conservancy engineering, in particular to a hydraulic pipeline laying structure for a hydraulically driven movable dam and a connection system thereof. Background technique [0002] Hydraulically driven movable dams, such as hinged movable dams, hydraulically driven flap doors, hydraulic lifting dams, and even dams are water retaining structures that intercept the water flow of river channels to raise the water level or adjust the flow, and are used for flood control, water supply, irrigation, hydraulic power Power generation, improving shipping and other fields. [0003] The hydraulically driven movable dam needs to be connected between the hydraulic station and the hydraulic cylinder through hydraulic pipelines and flexible connecting pipes. The high-pressure hydraulic oil extruded by the hydraulic pump flows into the hydraulic cylinder through the hydraulic pipeline and flexible connecting pipes ...

AI Technical Summary

Problems solved by technology

[0004] However, in the related art, due to the use of cast-in-place concrete to cover the hydraulic pipeline in the laying ditch on the dam base plate, if some hydraulic pipelines are damaged, the hydraulic pipeline has been consolidated by the cast-in-place concrete. It is difficult to remove, and the process of removing concrete can easily lead to damage to the hydraulic pipeline, and this method is difficult to quickly determine the damaged location of the hydraulic pipeline, making the maintenance or replacement of the hydraulic pipeline extremely difficult and complicated, and takes a long time

However, if the method of anchoring steel or concrete cover plates is used, due to the long-term impact of the water flow on the cover plate, the cover plate will easily fall off, and the solid filling medium between the hydraulic pipelines under the cover plate will fall off, making the hydraulic pipeline directly contact with the water flow, which is easy to be damaged. severe corrosion

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