Novel reactor core barrel structure

A core hanging basket, a new type of technology, applied in the field of nuclear power, can solve the problems of unfavorable control rod drop, increased friction between control rod and guide cylinder, etc., and achieve the effect of firm connection and simple component structure

Pending Publication Date: 2018-12-18
CHINA NUCLEAR POWER TECH RES INST CO LTD +2
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  • Abstract
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  • Application Information

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Problems solved by technology

However, the existing hanging basket assembly generally adopts a concentrated flow hole. In the process of realizing the work, the lateral flow generated by the centralized outlet due to suction; if the load reaches a certain level, th

Method used

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  • Novel reactor core barrel structure
  • Novel reactor core barrel structure
  • Novel reactor core barrel structure

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[0027] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0028] Such as figure 1 Shown is a cross-sectional view of an embodiment of a new type of core basket structure provided by the present invention; combined together figure 2 Shown. In this embodiment, the new core basket structure is used in the pressure vessel of a pressurized water reactor, which at least includes an upper supporting flange 1, an upper cylinder body 2, a lower cylinder body 4, a middle compression flange 3, The lower ...

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Abstract

The invention discloses a novel reactor core barrel structure used for a pressure vessel of a pressurized water reactor. The novel reactor core barrel structure at least includes upper support flanges(1), an upper cylinder (2), a lower cylinder (4), lower inner flanges (6) and a lower core plate (5). Specifically, the upper support flanges (1) are at least provided with hoist holes (10), the upper cylinder (2) is fixed to the upper support flanges (1), and circumference is provided with multiple layers of drain holes (20), the lower cylinder (4) is fixed to the bottom of the upper cylinder (2), the upper ends of the lower inner flanges (6) are fixed to the bottom of the lower cylinder (4), the upper surfaces of the lower inner flanges (6) are equipped with support steps (60), and the lower core plate (5) is placed on the support steps (60) and is fixed to the lower inner flanges (6). The novel reactor core barrel structure provided by the invention has the advantages of simple and firm structure, easy lifting, convenience for rod drop, etc.

Description

technical field [0001] The invention relates to the technical field of nuclear power, in particular to a novel core hanging basket structure. Background technique [0002] In the core of the existing pressurized water reactor, it is necessary to use the hanging basket assembly to realize the dropping of the control rods. However, the existing hanging basket assembly generally adopts a concentrated flow hole. In the process of realizing the work, the lateral flow generated by the centralized outlet due to suction; if the load reaches a certain level, the control rod guide cylinder assembly will be bent; another On the one hand, the lateral action will cause the friction force between the control rod and the guide cylinder to increase, which is not conducive to the drop of the control rod. [0003] Therefore, how to provide a core basket assembly with better performance becomes a problem to be solved. Contents of the invention [0004] The technical problem to be solved by...

Claims

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Application Information

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IPC IPC(8): G21C5/10G21C19/02
CPCG21C5/10G21C19/02Y02E30/30
Inventor 韩万富黄天荣路广遥宋磊刘青松唐叔建芮旻周建民翟立宏钟金童周国丰董超群赵月扬袁杰张超苏晓炜陈青山
Owner CHINA NUCLEAR POWER TECH RES INST CO LTD
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