Design and Development a Software for Wear Measurement of Control Rod Guide Card Based on Machine Vision

Design and Development a Software for Wear Measurement of Control Rod Guide Card Based on Machine Vision

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The control rod guide tube (CRGT) is used to protect the rod cluster control assembly (RCCA) from bending while providing guidance for the up and down movement of NEFF N70 KI6873FE0G Integrated 70/30 Fridge Freezer the RCCA.This ensures that the dropping time of the RCCA meets nuclear safety requirements and stops nuclear reactions within the specified time frame.During the up and down movement of the RCCA, the control rod guide cards (CRGC) may experience axial and vibration wear.

If the wear is severe, the CRGC may lose its guiding function, resulting in serious problems such as delayed dropping time.In this paper, a machine vision method is proposed to measure the dimensions of the CRGC.Edge extraction, BRONCHOSAN image rectification, and template matching are used to realize autonomous measurement of the CRGC based on its features.

The developed measurement software has been used 5 times in domestic nuclear power plant overhauls and has detected 15 CRGTs that were close to the wear limit.This provided data support for the replacement of the CRGTs and effectively improved the quality of nuclear power operation.