Fixing device of control rod guide tube of nuclear reactor

A tube fixing, nuclear reactor technology, applied in the field of nuclear reactors, can solve the problem of inconvenient replacement of control rod tubes, and achieve the effect of easy disassembly and assembly

Active Publication Date: 2012-11-28
CHINA INSTITUTE OF ATOMIC ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the invention is to solve the problem of inconvenient replacement of nuclear reactor control rod conduits

Method used

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  • Fixing device of control rod guide tube of nuclear reactor
  • Fixing device of control rod guide tube of nuclear reactor
  • Fixing device of control rod guide tube of nuclear reactor

Examples

Experimental program
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Embodiment Construction

[0026] The preferred embodiments will be further described below in conjunction with the accompanying drawings.

[0027] This embodiment discloses a control rod conduit fixing device applied in China Advanced Research Reactor (CARR), such as figure 1 As shown, it includes a lower joint 2 at the lower end of the control rod conduit and a lower connection socket 5, and the lower joint 2 is inserted into the lower connection socket 5, so as to realize the fixing of the control rod conduit.

[0028] The structure of the connected socket 5 is as follows: Figure 7 and Figure 8 As shown, the overall structure is a regular octagonal cylindrical structure, the inner side of the upper end is a regular octagonal shape, and the inner side of the lower end is cylindrical. There are guide grooves 11 and spring hook sockets 10 on the same axis on the four spaced sides of the upper end, the size of which matches the size of the spring hook 4, and the position is located on the center line...

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Abstract

The invention belongs to the technical field of nuclear reactors and particularly relates to a fixing device of a control rod guide tube of a nuclear reactor. The fixing device of the control rod guide tube of the nuclear reactor comprises a lower joint and a lower connected socket, wherein the lower joint and the lower connected socket are arranged at the lower end of the control rod guide tube;the lower joint is inserted into the lower connected socket; the lower connected socket is a regular-octagon cylindrical structure, and a guiding groove and a spring hook jack on the same axial line are arranged on four spaced sides at the upper end of the lower connected socket; the lower joint is divided into three sections, the upper section is in a cuboid shape with a cylinder in the middle part, and the middle section is in a regular-octagon cylindrical shape; and the spring hook consists of a spring hook body and a hook body, the spring hook body is provided with a screw hole, and an inclined surface lug is arranged under the hook body. The secure fixation of the control rod guide tube can be realized by the fixing device of the control rod guide tube of the nuclear reactor, and thefixing device of the control rod guide tube of the nuclear reactor has the advantage of convenience for disassembly.

Description

technical field [0001] The invention belongs to the technical field of nuclear reactors, in particular to a nuclear reactor control rod conduit fixing device. Background technique [0002] The control rod drive line of China Advanced Research Reactor (CARR) is composed of absorber assembly, follower assembly, square cone, connecting rod and armature from top to bottom. When the reactor is running, the part of the drive line above the square cone is under control Movement inside the rod catheter. The control rod conduit passes through the core and the grid plate from above the core, and is fixed on the diversion box. After several years of use, the control rod conduit needs to be replaced, and it is required to be fixed firmly during operation. It is easy to install and disassemble when replacing, and the operation is simple and convenient. The original design needs to be inserted under the grid plate with a tool when replacing, and the fixed mechanism is pushed aside. Like...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G21C7/10G21C7/12
CPCY02E30/39Y02E30/30
Inventor 陈立霞张应超高永光
Owner CHINA INSTITUTE OF ATOMIC ENERGY
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