Method and device for measuring straightness of zirconium tube for nuclear power

Abstract

The invention discloses a method for measuring the straightness of zirconium tubes used in nuclear power, as follows: (1) establishing a straightness measuring device for zirconium tubes including a camera, and establishing a mathematical model for measuring the straightness of zirconium tubes by using the straightness calculation method of the method of connecting two ends (2) Utilize the camera to collect the first end face image and the first middle part image of the zirconium tube, and extract the center coordinates of the two; (3) Utilize the camera to collect the second end face image and the second middle part of the zirconium tube Part of the image, extracting the center coordinates of the two; the first end face and the second end face of the zirconium tube are respectively located at the two ends of the zirconium tube; when extracting the center coordinates of the two zirconium tubes, and performing YOZ plane symmetry Processing; (4) uniformly corresponding the center coordinates of the images of the zirconium tubes; (5) establishing a mathematical model according to step (1), using the data of steps (2) and (3) to calculate the straight line of the zirconium tubes Spend. The invention has the advantages of high-efficiency, accurate and low-cost straightness detection for zirconium tubes.

Description

technical field [0001] The invention relates to the technical field of measurement and detection, in particular to a method and device for measuring the straightness of zirconium tubes used in nuclear power. Background technique [0002] As a clean, efficient, and pollution-free clean energy, nuclear energy has been widely used in military, production, and economic fields. Nuclear power generation has become an irresistible trend. Due to the characteristics of less residual waste, high energy utilization rate and high maturity of industrial application technology, heavy water reactors are widely used in nuclear power systems around the world. Nuclear fuel rods are the basic units of heavy water reactors, and the quality of their processing and production is directly related to the normal operation of nuclear power plants. [0003] Because zirconium materials can still maintain good metal properties under high temperature and high radiation conditions, zirconium alloy tubes...

AI Technical Summary

Problems solved by technology

At present, most straightness detection devices and systems are manual monitoring or semi-automatic detection. The whole process requires human-machine cooperation to complete the detection work, and the degree of automation and intelligence is low.

Moreover, the currently disclosed straightness measurement equipment and systems cannot take into account the requirements of measurement accuracy and measurement efficiency at the same time. The system design often has a single function, the measurement system is incomplete, and the equipment is expensive.

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