Limit-type irradiation sample hole plug and locking method

An irradiation and sample technology, which is applied in the field of limited irradiation sample hole plugs and locking, can solve the problems of complex structure of irradiation sample hole plugs and low locking efficiency, and achieve simple structure, improved installation efficiency, and improved The effect of the factor of safety

Active Publication Date: 2019-09-20
SICHUAN UNIV
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a limit-type irradiation sample hole plug and locking method, in order to solve the complex structure of the irradiation sample hole plug, and the irradiation sample hole plug needs to be displaced to the locking position, and then manually Locking, the problem of low locking efficiency

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  • Limit-type irradiation sample hole plug and locking method
  • Limit-type irradiation sample hole plug and locking method

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Embodiment Construction

[0035] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0036] refer to figure 1 , figure 2 , Figure 11 As shown, one embodiment of the present invention is a limit-type radiation sample hole plug, including a radiation plug body 1, by installing the radiation plug body 1 in the radiation sample hole of the radiation sample supervision tube, Furthermore, the flow loss of the core coolant is reduced, and when necessary, the main body 1 of the irradiation plug is taken out from the irradiation sample hole to expose the extraction channel, which is convenient for taking out the irradiation sample.

[0037] The upper end of the above-mentioned irradiat...

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Abstract

The invention discloses a limit-type irradiation sample hole plug. The limit-type irradiation sample hole plug comprises a radiation plug main body, wherein the upper end of the radiation plug main body is provided with an upper end cover; an operating rod is movably arranged in the upper end cover; the lower end of the radiation plug main body is provided with a self-locking mechanism; the lower end of the operating rod is provided with a self-locking trigger end; the central part of the operating rod is provided with a first buckle; the lower part of the upper end cover is provided with a second buckle; the first buckle and the second buckle are mutually locked; and the lower part of the upper end cover is also provided with a wedge-shaped telescopic mechanism. The limit-type irradiation sample hole plug provided by the invention is expected to solve the problems of complicated structure of an irradiation sample hole plug and low locking efficiency due to the need of artificial locking of the irradiation sample hole plug after being displaced to a locking position.

Description

technical field [0001] The invention relates to nuclear reactor components, in particular to a position-limiting radiation sample hole plug and a locking method. Background technique [0002] In the existing pressurized water nuclear reactor, in order to test the change of the mechanical properties of the pressure vessel body material after being irradiated, an irradiation sample holder is installed outside the heat shield plate of the lower reactor internals, and an irradiation sample supervision tube is installed, which is suitable for Equipped with a hole plug assembly, so as to meet the supervision and monitoring requirements during the service period of the pressure vessel. [0003] In the actual application process, it is necessary to pull out the hole plug assembly at different reaction stages of the nuclear reactor, and take out the irradiated sample supervision tube, and then monitor the changes in the pressure vessel of the reactor; the hole plug is installed on th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G21C13/06G21C13/073
CPCG21C13/06G21C13/073Y02E30/30
Inventor 李文强程子豪陶冶孙宏彪赵武
Owner SICHUAN UNIV
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