Disassembly method of irradiation device

A technology for irradiation devices and irradiating objects, which is applied in irradiation devices, nuclear engineering, radioactive purification, etc., can solve the problems of sharp increase in the exposure dose of workers, improper operation of shielding bodies, hidden safety hazards, etc., and achieve the goal of reducing radioactive contamination Risk, effect of reducing the risk of exposure to radiation

Active Publication Date: 2020-10-23
CHINA INSTITUTE OF ATOMIC ENERGY
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Problems solved by technology

Because the remote control of the crane will be limited by the operating technology, it is easy to cause improper operation of the shielding body, deviation of the stacking position, and a sharp increase in the exposure dose of the staff, resulting in safety hazards
In addition, when the irradiation device is placed flat on the ground of the reactor hall, the outer wall of the irradiation device is attached to the research reactor (for example, if the research reactor is a pool reactor, the outer wall of the irradiation device will be attached to the cooling water in the reactor pool. agent) scattered down, causing radioactive contamination to the bottom of the hall

Method used

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Embodiment Construction

[0037] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Apparently, the described embodiment is one embodiment of the present invention, but not all of them. Based on the described embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0038]It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present application shall have the usual meanings understood by those skilled in the field of the present invention. If the descriptions such as "first" and "second" are involved in the whole text, the descriptions such as "first" and "second" are only used to dist...

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Abstract

The invention discloses a disassembly method of an irradiation device. The disassembly method comprises the following steps of: S10, hoisting the irradiation device; S30, moving the irradiation deviceto a shielding device, putting an activated section of a cylindrical shell into the shielding device from an opening of the shielding device, and exposing at least part of a safety section of the cylindrical shell out of the shielding device; S50, cutting off the part, exposed out of the shielding device, of the safety section; and S90, completely putting the residual irradiation device into theshielding device. According to the technical scheme, the risk that workers are irradiated can be reduced, and the irradiation dose of the workers, the irradiation objects and the radiation safety of awork site can be effectively and safely supervised.

Description

technical field [0001] The invention relates to the technical field of nuclear industry, in particular to a method for dismantling an irradiation device. Background technique [0002] In the research reactor, the irradiation device needs to be disassembled after the irradiation experiment, that is, the shell of the irradiation device is peeled off, the internal wires (such as monitoring signal lines, trachea), etc. are cut off, and the internal irradiated matter is taken out for subsequent experimental analysis . Since the irradiated material is activated into a strong radioactive source after being irradiated, the dismantling process of the irradiated device needs to be specially designed to protect the safety of the workers. [0003] Most of the existing dismantling procedures are as follows: first, the whole irradiation device is remotely controlled by a crane and placed flat on the floor of the storage hall, then the pre-prepared shielding body is piled up in the activa...

Claims

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Application Information

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IPC IPC(8): G21F9/30G21K5/00
CPCG21F9/30G21K5/00
Inventor 王硕张亚东邹明峰李保青
Owner CHINA INSTITUTE OF ATOMIC ENERGY
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