Aluminum-based composite foam material filling pipe whip limiting part

Abstract

Provided is an aluminum-based composite foam material filling pipe whip limiting part. The invention relates to a nuclear power plant main pipeline whip limiting part, and aims at solving the problem that at present, for frequently-used whip limiting parts of nuclear power plant main steam and main water supply pipelines, when the pipelines are limited to whip, the whip force is too large or deformation is too large. The aluminum-based composite foam material filling pipe whip limiting part is composed of multiple aluminum-based composite foam material filling pipes, an upper connecting steel plate and a lower connecting steel plate; each aluminum-based composite foam material filling pipe is composed of a stainless steel pipe, aluminum-based composite foam materials filling up the stainless steel pipe and circular fixed steel plates which cover the two ends of the stainless steel and are provided with grooves. Compared with U-shaped and H-shaped limiting parts, the aluminum-based composite foam material filling pipes which is subjected to reasonable and optimized design have proper strength and rigidity and good energy dissipation capacity, whip and deformation of the pipelines can be well restricted, and the whip force of the pipelines can be greatly reduced so as to reduce loads delivered to a civil structure.

Description

technical field [0001] The invention relates to a slam limiter for a main pipeline of a nuclear power plant. Background technique [0002] The main steam and main water supply pipelines in nuclear power plants operate under high temperature and high pressure conditions for a long time, and may burst suddenly under accidental conditions. Once the pipeline ruptures, the high-temperature and high-pressure fluid will be ejected from the breach at high speed, and the jet reaction force will drive the main pipeline to produce a slamming motion. If the ruptured pipeline is not specifically restricted, the rapidly slamming pipeline will seriously damage the key components of the conventional island or nuclear island of the nuclear power plant and the nearby structures and staff, and may even affect nuclear safety. Therefore, in the design of the main pipeline, possible pipeline rupture conditions should be considered, and appropriate slam limiters should be used to restrict the pip...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the slamming limiter commonly used in the main steam and main water supply pipelines of nuclear power plants is too large or the deformation is too large when restricting the swaying of the pipeline, and to provide an aluminum-based composite foam material filled pipe slinger Restricted parts

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