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Calibration device of ultrasonic and eddy current testing of control rod bundle assembly

A technology of eddy current inspection and rod bundle control, which is applied to measuring devices, material analysis using sound waves/ultrasonic waves/infrasonic waves, instruments, etc., can solve the problems of uncontrollable speed and position, and affect the debugging results of inspection scanners, etc., and achieve improvement Effects of Accuracy and Efficiency

Pending Publication Date: 2020-04-28
CHINA NUCLEAR POWER OPERATION TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Before using the inspection scanner to inspect the control rod bundle components of the nuclear power plant, it is necessary to perform functional debugging on the inspection scanner used to detect the control rod bundle components. A summary of related technologies generally adopts single-rod testing, and Manually moving the fuel rods to be calibrated, the speed and position are uncontrollable, which seriously affects the debugging results of the inspection scanner

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  • Calibration device of ultrasonic and eddy current testing of control rod bundle assembly
  • Calibration device of ultrasonic and eddy current testing of control rod bundle assembly

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Embodiment Construction

[0021] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0022] figure 1 It is a top view of a calibration device for ultrasonic and eddy current testing of a control rod bundle assembly according to an exemplary embodiment. figure 2 It is a perspective view of a calibration device for ultrasonic and eddy current testing of a control rod bundle assembly according to an exemplary embodiment. Such as figure 1 with figure 2 As shown, the calibration device for the ultrasonic and eddy current inspection of the control rod bundle assembly includes: a water tank 2, an inspection scanner 3, a calibration assembly 5 and a support assembly 1, and the support assembly 1 may include two support column assemblies 7 and a beam assembly 9;

[0023] In the embodiment of the present disclosure, the calibration component can be represented as a control rod bundle component with a known damage state, an...

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Abstract

The invention belongs to the technical field of nuclear power maintenance, and particularly relates to a calibration device of ultrasonic and eddy current testing of a control rod bundle assembly. According to the embodiment of the invention, the calibration assembly can move along a cross beam; the cross beam can drive the calibration assembly to move along a support column assembly, and the support column assembly can also drive the calibration assembly to slide relative to a water tank so that the calibration assembly can be flexibly moved to any position relative to an inspection scanner,and each control rod of the calibration assembly can correspond to an inspection probe on the inspection scanner; and besides, the water tank can contain a proper amount of water, a working environment of the inspection scanner in a spent fuel pool can be effectively simulated and inspected. Therefore, the calibration device of ultrasonic and eddy current testing of the control rod bundle assemblycan effectively improve debugging accuracy and efficiency of the inspection scanner.

Description

technical field [0001] The invention belongs to the technical field of nuclear power maintenance, and in particular relates to a calibration device for ultrasonic and eddy current testing of a control rod bundle assembly. Background technique [0002] The reactor control rod bundle assembly of nuclear power plant plays the role of compensating and adjusting neutron reactivity and emergency shutdown in the reactor. With the increase of the operating time of nuclear power plants, the control rod bundle components will have defects such as swelling, wear and cracks after a certain period of service. In order to ensure the safe operation of the nuclear power plant, it is necessary to use inspection scanners to regularly inspect the control rod bundle components to evaluate the wear rate and swelling trend, so as to arrange timely replacement of the control rod bundle components that may affect the normal operation of the next cycle of the reactor. Before using the inspection sc...

Claims

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Application Information

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IPC IPC(8): G01N29/30G01N27/90G01N27/9093
CPCG01N29/30G01N27/90
Inventor 成照宇李树鹏乐磊邱进杰刘毅
Owner CHINA NUCLEAR POWER OPERATION TECH