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Device and method for recognizing fuel elements with different sizes in pebble bed high-temperature reactor

A technology of fuel elements and high-temperature reactors, applied in the field of nuclear reactors, to achieve the effect of improving recognition accuracy

Active Publication Date: 2012-08-01
CHINERGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is: how to improve the recognition accuracy of fuel elements without increasing the complexity

Method used

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  • Device and method for recognizing fuel elements with different sizes in pebble bed high-temperature reactor
  • Device and method for recognizing fuel elements with different sizes in pebble bed high-temperature reactor
  • Device and method for recognizing fuel elements with different sizes in pebble bed high-temperature reactor

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Experimental program
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Embodiment 1

[0035] refer to image 3, in this embodiment, the execution part 4 is a cylindrical rotor, and includes: a detection channel 20, a goal channel 21, and a large ball channel 22 communicating with each other, and the goal channel 21 is connected to the goal The tube 7 communicates, and the detection passage 20 communicates with the ball outlet pipe 8. The axes of the detection passage 20, the goal passage 21, and the large ball passage 22 are in the same plane, and there is a 120-degree clamp between them. Angle, the goal channel 21 is coaxial with the goal tube 7, and the detection channel 20 is coaxial with the ball outlet tube 8.

Embodiment 2

[0037] refer to Figure 4 , in this embodiment, the structure of the execution part 4 is basically the same as that of Embodiment 1, the difference is that the goal tube 7 is coaxial with the ball tube 8, and the detection channel 20 is coaxial with the tube tube 8. The ball tube 7 is coaxial, and the ball tube 7 communicates with the ball channel 21 through a guide groove 23 .

[0038] On the basis of Embodiments 1 and 2, preferably, the box body 9 is provided with a positioning pin 24, and the actuator part 4 is provided with a limiting groove 25 adapted to the positioning pin 24. The central angle of the bit groove 25 is 120 degrees, so that the execution part 4 can rotate 120 degrees counterclockwise (refer to Figure 5 , that is, the state after rotating 120 degrees counterclockwise), the use of its mechanical limit can ensure that the driving part 5 can still reliably return to the zero point in the event of a power failure, ensuring operational reliability.

[0039] P...

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Abstract

The invention discloses a device and method for recognizing fuel elements with different sizes in a pebble bed high-temperature reactor, relating to the technical field of nuclear reactors. The device comprises a first counting sensor, a mechanical detection unit, a second counting sensor and a control unit, wherein the first counting sensor, the mechanical detection unit and the second counting sensor are sequentially arranged from an inlet to an outlet of a ball passing pipe section of the pebble bed high-temperature reactor and are respectively connected with the control unit; and the ball passing pipe section of the pebble bed high-temperature reactor is vertically arranged. According to the structural design, on the condition of no increase of complexity, the recognition precision of the fuel elements is improved.

Description

technical field [0001] The invention relates to the technical field of nuclear reactors, in particular to a device and method for identifying fuel elements of different sizes in a pebble bed high temperature reactor. Background technique [0002] For different purposes, the pebble-bed high-temperature gas-cooled reactor may use fuel elements and graphite elements of different sizes, such as the publication number: CN1159726C, and the patent name: Method and device for measuring the interface of the double-zone core of a pebble-bed high-temperature gas-cooled reactor Two kinds of diameter elements (ie, φ60 fuel element and φ35 graphite element) are used in the Chinese invention patent. During multiple passes through the core, the components staying at different positions in the core and on the flow path are subjected to different doses of neutron irradiation and have different shrinkages, resulting in size differences. In addition, element dimensional variances can also resu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G21C1/07G21C17/06
CPCY02E30/36Y02E30/30
Inventor 张海泉王鑫张作义聂君锋李红克刘继国张立国吴宗鑫
Owner CHINERGY CO LTD