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Liftable temporary storage container assembly for dismounting nuclear reactor detector assembly and method

A technology for detector components and nuclear reactors, applied in portable protective containers, nuclear engineering, etc., can solve the problems of less research on storage technology

Active Publication Date: 2020-10-23
NUCLEAR POWER INSTITUTE OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there is little research on the storage technology of the dismantled detector components, and it is necessary to design a set of storage containers that cooperate with the dismantling equipment for temporary storage and transfer of the dismantled detector components

Method used

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  • Liftable temporary storage container assembly for dismounting nuclear reactor detector assembly and method
  • Liftable temporary storage container assembly for dismounting nuclear reactor detector assembly and method
  • Liftable temporary storage container assembly for dismounting nuclear reactor detector assembly and method

Examples

Experimental program
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Effect test

Embodiment 1

[0048] Such as Figure 1-Figure 8 As shown, the liftable temporary storage container assembly for dismantling the nuclear reactor detector assembly includes a telescopic mechanism 3, a temporary storage container 2 and a hoisting mechanism 5. The top of the telescopic mechanism 3 is fixed, and the telescopic mechanism 3 is stretched through the hoisting mechanism 5. , the temporary storage container 2 is installed at the bottom of the telescopic mechanism 3, the temporary storage container 2 includes a cylinder 201, the top and bottom of the cylinder 201 are open structures, and the bottom opening of the cylinder 201 fits An opening and closing door 203 is provided, and the temporary storage container 2 is arranged above the high storage container, and can be lowered into the high storage container under the action of the telescopic mechanism 3; the opening and closing door 203 is connected with the first torsion spring 202 The bottom of the cylinder 201 is connected, and the ...

Embodiment 2

[0057] Such as Figure 1-Figure 8 As shown, this embodiment is based on Embodiment 1, and further includes a shielding cylinder 1 arranged above the temporary storage container 2, the temporary storage container 2 is submerged below the water surface, and the bottom of the shielding cylinder 1 is in contact with or submerged in the water surface Below the water surface, the temporary storage container 2 can be embedded in the shielding cylinder 1, and the inner cavity size of the shielding cylinder 1 matches the outer dimension of the temporary storage container 2. When the temporary storage container receives the dismantled detector assembly, it For radiation shielding, the top and bottom of the shielding cylinder 1 are both open structures; the shielding cylinder 1 is made of lead plate, and the temporary storage container 2 is made of tungsten alloy.

[0058] In this embodiment, the full stroke double radiation shielding is performed on the disassembled detector assembly: ...

Embodiment 3

[0061] Such as Figure 1-Figure 8 Shown, this embodiment is based on embodiment 1 or embodiment 2

[0062] Also includes a guide rail assembly 4, one end of the upper X-shaped telescopic assembly is fixed, and the other end is installed on the guide rail assembly 4; the guide rail assembly 4 includes a slider 401, a guide rail 402 and a base 403;

[0063] The slider 401 is installed in the guide rail 402, the slider 401 is connected with the telescopic mechanism, the guide rail 402 is installed on the base 403, and both ends of the base 403 are provided with mechanical stoppers to limit the slider 401 motion stroke.

[0064] In this embodiment, double anti-falling measures are used to ensure high safety performance: two sets of flexible parts are used for transmission, reducing the risk of falling due to transmission damage; one end of the telescopic mechanism 3 is connected to the guide rail assembly 4, and the guide rail assembly 4 has a mechanical limit Function, when the...

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Abstract

The invention discloses a liftable temporary storage container assembly for dismounting a reactor detector assembly and method. The liftable temporary storage container assembly comprises a telescopicmechanism, a temporary storage container and a hoisting mechanism. The top of the telescopic mechanism is fixed; the telescopic mechanism stretches out and draws back through a hoisting mechanism; the temporary storage container is mounted at the bottom of the telescopic mechanism and comprises a barrel, the top and the bottom of the barrel are each of an open structure, an opening and closing door is arranged at an opening in the bottom of the barrel in a matched mode, and the temporary storage container is arranged above the high-level storage container and can descend into the high-level storage container under the action of the telescopic mechanism. By means of the liftable temporary storage container assembly and the method, temporary storage and transfer of the dismounted detector assembly can be achieved.

Description

technical field [0001] The invention relates to the technical field of refueling overhaul of a pressurized water reactor nuclear power plant, in particular to a liftable temporary storage container component and a method for dismantling a nuclear reactor detector component. Background technique [0002] The detectors used in the core measurement system in the second-generation and second-generation pressurized water reactor nuclear power plants are divided into thermocouples for temperature measurement and neutron flux detectors for flux measurement. The thermocouple is introduced from the top cover of the pressure vessel, guided by the thermocouple column assembly, and positioned at the specified measuring point position, and the lower end of the thermocouple is located at the core outlet of the upper core plate. The flux detector is introduced from the bottom head of the pressure vessel, guided through the instrument sleeve and finger sleeve when necessary, and enters the ...

Claims

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Application Information

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IPC IPC(8): G21F5/005G21F5/06G21F5/14
CPCG21F5/005G21F5/06G21F5/14
Inventor 熊思勇张翼瓮松峰安彦波余志伟湛卉杨其辉李娜钟元章罗英陈书华黄辉任荷穆伟张弦
Owner NUCLEAR POWER INSTITUTE OF CHINA
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