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Burnable poison assembly part postirradiation overall performance checking device and detection method

A technology for inspection devices and assembly parts, applied in the direction of measuring devices, mechanical devices, optical devices, etc., can solve the problems of no overall performance detection device, single function of detection equipment, high operation risk, etc., and achieve high measurement efficiency and scrape Less chance of rubbing and less chance of damage

Active Publication Date: 2019-12-20
NUCLEAR POWER INSTITUTE OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the function of detection equipment similar to burnable poison components is single, and there is no overall performance detection device
In addition, the existing special inspection equipment has high risk and low efficiency for poolside inspection of assembled parts, and many people need to participate

Method used

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  • Burnable poison assembly part postirradiation overall performance checking device and detection method
  • Burnable poison assembly part postirradiation overall performance checking device and detection method
  • Burnable poison assembly part postirradiation overall performance checking device and detection method

Examples

Experimental program
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Effect test

Embodiment 1

[0056] like Figure 1-Figure 4 The overall performance inspection device of a combustible poison assembly after irradiation is shown, including a bracket, a detection system and a main platform track 6, the bracket includes a lower base 21, and the lower base 21 is installed at the bottom of the well, and the lower base 21 is vertically provided with an upper base 22, the top of the upper base 22 is provided with a rotating mechanism 25, the top of the bracket is provided with a level measuring instrument 24, the rotating mechanism 25 is used to fix the assembly 23, and the rotating mechanism 25 is equipped with a rotating long handle 3, and a positioning hole matched with the rotating long handle 3 is arranged on the rotating mechanism 25. When rotating the rotating mechanism 25, the rotating long handle 3 can be inserted into the positioning hole for operation. The supports are arranged in parallel, and the main platform track 6 is provided with a moving trolley 18, which is...

Embodiment 2

[0058] A kind of detection method of integral performance inspection device after the irradiation of combustible poison assembly as described in embodiment 1, comprises the following steps:

[0059] 1) Install the assembly 23: use the level measuring instrument 24 to obtain the levelness of the top plane of the support frame, which must be less than 0.5 ゜, use the burnable poison grab of the nuclear power plant to pull the assembly 23 out of the fuel assembly and move it to the loading The top of the support in the well is positioned through the two positioning holes of the rotating mechanism 25. The burnable poison grabber sits on the top of the rotating mechanism 25, and the horizontality of the top plane of the support is obtained through the level measuring instrument 24 again, which needs to be less than 0.5°. The actuator on the tool inserts the assembly 23 into the rotation mechanism 25, removes the burnable poison gripper, inserts the rotating long handle 3 into the two...

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Abstract

The invention discloses a burnable poison assembly part postirradiation overall performance checking device and a detection method. The overall performance checking device comprises a support, a detection system and a main rack track, wherein a rotating mechanism is arranged at the top of the support, the rotating mechanism is used for fixing an assembly part, and the main rack track is arranged parallel to the support. Through the overall performance checking device, the problems that pool-side checking operation on the assembly part similar to a burnable poison component is high in risk andlow in efficiency and requires a large quantity of participants are solved. Through the equipment, appearance checking can be performed on the highly-radioactive assembly part on site, a postirradiation tiny dimensional change can be precisely measured, and measurement is efficient, safe and reliable.

Description

technical field [0001] The invention relates to nuclear industry detection technology, in particular to a device and a detection method for the overall performance of a combustible poison assembly after irradiation. Background technique [0002] The burnable poison assembly is an important part of the PWR fuel assembly, and its main function is to control the peak power of the core and the temperature coefficient of the moderator. In the process of developing a fuel rod material, different types of zirconium alloy materials were prepared into irradiation sample tubes and assembled into assemblies similar to burnable poisons and inserted into fuel assemblies for irradiation tests. After several test cycles, it was necessary to measure Small changes in the size of the sample assembly after irradiation, such as small changes in the amount of irradiation growth and oxide film thickness. [0003] At present, the function of the detection equipment similar to the burnable poison ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B5/00G01B5/06G01B11/00G01B11/06G01C9/00
CPCG01B5/00G01B5/066G01B11/00G01B11/0616G01C9/00
Inventor 王万金李成业刘晓松吴瑞江林志任亮李国云刘洋周治江偶建磊郑海川鲍勇武文超任力军钟伟
Owner NUCLEAR POWER INSTITUTE OF CHINA
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