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A general transport container for reactor irradiation supervisory tube

A technology for radiation supervision tubes and transportation containers, which is applied in portable protective containers, nuclear engineering, etc., to achieve the effect of safe transportation

Active Publication Date: 2019-06-18
NUCLEAR POWER INSTITUTE OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is that there are safety hazards in the existing various reactor type radiation supervision tubes without special general transport containers for transportation. The purpose is to provide a general transport container for reactor radiation supervision tubes, which meets The safety requirements for material transportation can also cover the transportation needs of the current domestic radiation supervision and management of various reactor types

Method used

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  • A general transport container for reactor irradiation supervisory tube
  • A general transport container for reactor irradiation supervisory tube
  • A general transport container for reactor irradiation supervisory tube

Examples

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Embodiment

[0024] Such as Figure 1 to Figure 7 As shown, a general transport container for reactor radiation supervisory tubes includes a container main body 2 with openings at both ends, so as to facilitate maintenance and cleaning. The shell 11 is arranged in the outer shell 10 and is coaxial with the outer shell 10. Both the inner shell 11 and the outer shell 10 are rolled and welded by stainless steel plates with a thickness of 10mm. The outer shell 10 is a straight tube structure, and the inner shell 11 is a three-section straight tube. The opening structure with thin middle and thick ends formed by welding with two sections of tapered tubes, the two ends of the outer shell 10 are respectively welded with the upper head 9 and the lower head 13, and the inner shell 11 passes through the upper head 9 and the lower head 13 and Welded with the upper head 9 and the lower head 13, the inner cavity formed between the upper head 9 and the lower head 13, and between the inner shell 11 and t...

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Abstract

The invention discloses a general-purpose transport container for a reactor radiation supervision tube, which comprises a container main body with two ends open. The open ends of the container main body are respectively provided with an upper end plug and a lower end plug. At the open end, a compression pad and a buffer pad are respectively installed on the upper end plug and the lower end plug, and the buffer pad is arranged between the compression pad and the lower end plug. The transport container can realize the safe transportation of the reactor radiation supervision tube. When loading the radiation supervision tube with the largest known radioactive activity in China, the highest radiation level on the outer surface of the container is not more than 0.5mSv / h, and the highest level is 1m away from the surface of the container. The radiation level does not exceed 0.01mSv / h. This transport container can cover the transportation needs of various stack types of radiation supervision tubes in China. With a suitable size cushion, it can load radiation supervision tubes with a maximum length of 2050mm.

Description

technical field [0001] The invention relates to a radioactive material transport container for loading and transporting nuclear reactor radiation supervision tubes, in particular to a general transport container for reactor radiation supervision tubes. Background technique [0002] In order to monitor the effect of neutron irradiation on the material properties of the reactor pressure vessel, a radiation supervisory tube is installed in the reactor pressure vessel. Mechanical performance samples, temperature detectors and dose detectors are placed in the irradiation supervision tube. During use, the irradiation supervision tube is regularly drawn out from the reactor as planned and inspected and tested to determine the performance changes of related materials, which provides an important basis for the safety assessment of the reactor pressure vessel. Due to the long-term neutron irradiation in the reactor, the irradiation supervisory tube has strong radioactivity, and a spe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G21F5/005G21F5/06G21F5/08G21F5/12
CPCG21F5/005G21F5/06G21F5/08G21F5/12
Inventor 吴红伟汪海孙胜童明炎戴钰冰
Owner NUCLEAR POWER INSTITUTE OF CHINA
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