Reactor internal supporting base with gamma-ray shielding and flow distribution functions

A technology of flow distribution and support base, used in the field of nuclear engineering

Pending Publication Date: 2019-04-12
CHINA INSTITUTE OF ATOMIC ENERGY
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  • Abstract
  • Description
  • Claims
  • Application Information

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  • Reactor internal supporting base with gamma-ray shielding and flow distribution functions
  • Reactor internal supporting base with gamma-ray shielding and flow distribution functions

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[0019] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0020] Such as figure 1 As shown, the present invention provides a support base for internal components with gamma shielding and flow distribution functions, including a support bottom plate 1 and a support top plate 3, and the support bottom plate 1 and support top plate 3 pass through a support ring plate provided with flow holes 5 connection; the support bottom plate 1 is provided with a compression groove for installing the lead shielding plate 6; the support top plate 3 is provided with a flow distribution through hole; the support bottom plate 1 is used for fixed connection with the pool bottom plate; The support top plate 3 is used to connect with the reactor internals. The support top plate 3 is provided with a circular groove-like structure on the side facing the stack internals, and the flow distribution through-holes are arranged in the ci...

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Abstract

The invention relates to a reactor internal supporting base with gamma-ray shielding and flow distribution functions, comprising a supporting bottom plate and a supporting top plate, wherein the supporting bottom plate and the supporting top plate are connected by a supporting annular plate provided with a circulation hole; the supporting bottom plate is provided with a pressing groove for installing a lead shielding plate; the supporting top plate is provided with a flow-distribution through hole; the supporting bottom plate is for fixed connection with a pool bottom plate; and the supportingtop plate is for being connected with a reactor internal. The beneficial effects of the present invention are as follows: the base satisfies the requirement of gamma-ray shielding by the shielding plate in the pressing groove, and realizes the flow distribution function through the flow-distribution through hole, and can satisfy the demand of simultaneously considering problems of flow distribution and activation of gamma-rays to the bottom of a pool.

Description

technical field [0001] The invention belongs to the technical field of nuclear engineering, and in particular relates to a support base for reactor internals with gamma shielding and flow distribution functions. Background technique [0002] In the current PWR design, the reactor internals are usually supported at the inner flange flange of the reactor pressure vessel, and a flow distribution plate (skirt) is provided at the bottom of the reactor internals to achieve a reasonable distribution of core flow. In the design of a deep-water pool-type low-temperature heating reactor, the reactor pressure vessel is canceled, and its characteristic is that the deep-water pool is used to increase the temperature of the core outlet water by hydrostatic pressure, and the internal components of the reactor can be directly supported and fixed by the support base. The bottom of the pool and the supporting base should consider both the flow distribution and the activation of the pool botto...

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Application Information

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IPC IPC(8): G21C5/06G21C5/10
CPCG21C5/06G21C5/10Y02E30/30
Inventor 周寅鹏郭志家张金山柯国土刘兴民衣大勇彭朝晖范月容邵静李龙石辰蕾姚成志
Owner CHINA INSTITUTE OF ATOMIC ENERGY
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