Dismantling method of irradiation device

A technology of irradiation device and shielding device, which is applied in the field of dismantling of irradiation device, can solve problems such as sharp increase in exposure dose of workers, improper operation of shielding body, and radioactive contamination on the bottom of the hall, so as to reduce the risk of radioactive contamination , the effect of reducing the risk of exposure to radiation

Active Publication Date: 2022-07-01
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

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  • Dismantling method of irradiation device

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Embodiment Construction

[0037] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiment is one, but not all, of the embodiments of the present invention. Based on the described embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

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

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Abstract

The invention discloses a disassembly method of an irradiation device, which comprises the following steps: S10, hoisting the irradiation device; S30, moving the irradiation device to a shielding device, and removing the activated section of the cylindrical shell from the shielding device. The opening is put into the shielding device, and the safety section of the cylindrical shell is at least partially exposed to the shielding device; S50 cuts off the part of the safety section exposed to the shielding device; S90 completely puts the remaining irradiation device into the shielding device. The technical scheme of the present invention can reduce the danger of the staff being irradiated, so that the exposure dose of the staff, the irradiated matter and the radiation safety of the workplace can all be under effective safety supervision.

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, peel off the shell of the irradiation device, cut off the internal wires (such as monitoring signal lines, gas pipes), etc., and take out the internal irradiator for subsequent experimental analysis. . Since the irradiator is activated to become a strong radioactive source after being irradiated, the disintegration process after the irradiation device is out of the reactor needs to be specially designed to protect the safety of the staff. [0003] Most of the existing dismantling processes are as follows: first, the entire irradiation device is lifted out by remote control by a crane and placed flat on the ground of the stacking hall, then the pre-prepared shielding bodies are st...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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