System and method for disposal of highly radioactive tubular irradiation facilities

Abstract

The present invention discloses a system and method for disposal of highly radioactive tubular irradiation facilities. The system comprises a water pool for temporary storage of irradiation facilities, and also a surface cleaning and inner cavity water changing module, a surface radiation level detection position and a cutting bench that are connected to the water pool for temporary storage of irradiation facilities in sequence. A pipe cutting device is disposed in the cutting bench. The system further comprises an activated section disposal module and a non-activated section disposal module that are separately connected to the cutting bench. The surface radiation level detection position and the cutting bench are both disposed underwater. The system and method for disposal of highly radioactive tubular irradiation facilities can achieve safe and reliable cutting, dismantling and casing of tubular irradiation facilities and thus reduce radiation exposure to the working personnel around.

Description

technical field [0001] The invention relates to nuclear engineering techniques, in particular to a high-radioactivity tubular irradiation device processing system and a processing method thereof. Background technique [0002] The irradiation test part of the tubular irradiation device of the research reactor needs to be inserted into the active area of ​​the reactor core. The material of the irradiation device is activated after the irradiation test in the active area, and has high radioactivity. Currently, this type of high radioactive tubular irradiation The device is temporarily stored in the damaged component storage pool with poor water quality, which has destroyed the original design function of the pool and needs to be disposed of as soon as possible; through the previous source item investigation, the highest radiation level on the surface of the irradiation device can reach 40Gy / h; at the same time, This type of irradiation device is long, more than 8m in length, an...

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Problems solved by technology

[0002] The irradiation test part of the tubular irradiation device of the research reactor needs to be inserted into the active area of ​​the reactor core. The material of the irradiation device is activated after the irradiation test in the active area, and has high radioactivity. Currently, this type of high radioactive tubular irradiation The device is temporarily stored in the damaged component storage pool with poor water quality, which destroys the original design function of the pool, and needs to be dealt with as soon as possible; through the previous source item investigation, the highest radiation level on the surface of the irradiation device can reach 40Gy / h; at the same time, This type of irradiation device has a long length, all greater than 8m, and cannot be directly put into a standard waste container for post-processing. Long-term exposure to the outside poses a certain threat to the health of the surrounding staff.

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