High-energy pipeline impact energy absorber

A technology of high-energy pipelines and energy absorbers, which is applied in the field of vibration and shock, can solve problems such as pipeline rebound, secondary impact, and aggravate the severity of accidents, and achieve the effects of reducing production costs, high reliability, and reducing maintenance costs

Inactive Publication Date: 2016-07-27
STATE NUCLEAR ELECTRIC POWER PLANNING DESIGN & RES INST CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the pipe breaks and performs a swing movement and collides with the restricting part, the potential energy stored in the elastic deformation of the steel will cause the pipe to rebound, resulting in a secondary impact, which will inevitably aggravate the severity of the accident

Method used

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  • High-energy pipeline impact energy absorber

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Embodiment

[0029] In this embodiment, the outer casing 1 and the inner casing 2 are welded on the casing end baffle 5, the outer casing 1 has an outer diameter of 100mm, an inner diameter of 90mm, and a length of 150mm; the inner casing 2 has an outer diameter of 70mm, an inner diameter of 60mm, and a length of 150mm; The gap between the outer casing 1 and the inner casing 2 is filled with the energy-dissipating lead body 3, the length of which is 100 mm; the impact tube 4 is welded on the end baffle plate 6 of the impact tube, and the length is 150 mm, and the impact tube 4 extends into the outer casing 1 and the inner sleeve The length between the tubes 2 is 50mm, and the outer tube 1, the inner tube 2, the tube end baffle 5, the impact tube 4, and the impact tube end baffle 6 are all made of Q235 steel.

[0030] In this embodiment, in the initial state, the impact tube 4 is just in contact with the energy-dissipating lead body 3, and there is no extrusion force; when pressure is slowly...

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Abstract

The invention belongs to the technical field of vibration and impact, and relates to a high-energy pipeline impact energy absorber which is mainly applied to weakening of whipping of high-energy pipelines in a nuclear power plant or a chemical plant and dissipation of kinetic energy of broken pipelines. The energy absorber comprises an outer sleeve, an inner sleeve, an energy-dissipation lead body, an impact pipe, a sleeve end baffle and an impact pipe end baffle, wherein the outer sleeve and the inner sleeve are welded to the sleeve end baffle; the space between the two sleeves is filled with the energy-dissipation lead body, after being impacted, the impact pipe squeezes the energy-dissipation lead body, so that the energy-dissipation lead body plastically deforms and moves towards the internal space of the energy absorber to fill the internal space. The high-energy pipeline impact energy absorber is simple in structure, convenient to mount, high in reliability, good in corrosion resistance and high in cost performance; impact energy is effectively absorbed, and the secondary impact problem of the high-energy pipelines is solved.

Description

technical field [0001] The invention relates to an impact energy absorber for high-energy pipelines, which is mainly used in weakening the slam motion of high-energy pipelines in nuclear power plants or chemical plants, and consumes kinetic energy obtained from broken pipelines, belonging to the technical field of vibration and shock. Background technique [0002] In nuclear power plants, conventional power plants and chemical plants, there are often many pipelines used to transport high-pressure and high-speed fluids. Although these pipes are designed to withstand high pressures, for various reasons, the pipes can burst suddenly. The rupture of these high-energy pipes can lead to the leakage of high-energy fluids, which exert large lateral forces on the pipes. Under the action of this force, the ruptured pipe will acquire a high lateral velocity and usually cause the pipe to perform a high-speed rotational motion around a local deformation zone, that is, the pipe flings. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L55/02F16L55/00
CPCF16L55/005F16L55/02
Inventor 刑国雷陆宜倩陈矛彭凌云王勇奉常健
Owner STATE NUCLEAR ELECTRIC POWER PLANNING DESIGN & RES INST CO LTD
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