Transporting container generally used for reactor irradiation monitoring tubes

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: 2018-05-11
NUCLEAR POWER INSTITUTE OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
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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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  • Transporting container generally used for reactor irradiation monitoring tubes
  • Transporting container generally used for reactor irradiation monitoring tubes
  • Transporting container generally used for reactor irradiation monitoring tubes

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 transporting container generally used for reactor irradiation monitoring tubes. The container comprises a container main body with two open ends, the open ends of the container main body are separately provided with an upper end plug and a lower end plug, the upper end plug seals one corresponding open end into which the upper end plug inserted, and the lower end plug seals one corresponding open end into which the lower end plug inserted; and the upper end plug and the lower end plug are respectively equipped with a pressing pad and a buffering pad, and the bufferingpad is arranged between the pressing pad and the lower end plug. The transporting container provided by the invention can realize safe transportation of the reactor radiation monitoring tubes, when one irradiation monitoring tube with the largest radioactive activity known in China is loaded, the maximum radiation level of the outer surface of the container is not more than 0.5mSv/h, and the maximum radiation level of the position 1m away from the surface of the container is not more than 0.01mSv/h; and the transporting container can cover the transportation requirements for the irradiation monitoring tubes with various reactor types in the China, and can load one irradiation monitoring tube with the maximum length of 2050mm when a buffering pad with an appropriate specification is matched.

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 Applications(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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