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Automatic water flow regulation system for rotary ultrasonic testing |
WANG Xiaowen, ZHANG Guangxin, ZHANG Zhenhua |
NCS Testing Technology Co.,Ltd., Beijing 100081, China |
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Abstract The probe rotary ultrasonic testing can achieve rapid and automatic detection, and has been widely used by various steel mills. During flaw detection, a water ring is filled between the probe and the workpiece for inspection, and water serves as the coupling medium. It is necessary to solve the problem of rapid stability. The water flow and bubbles can affect the emission and reception signals of ultrasonic waves, leading to a decrease in detection sensitivity, and resulting in defect misdetection and missed detection. In order to improve this phenomenon, an automatic water flow regulation system was designed, which consisted of a programmable logic controller (PLC), an actuator, a flow regulation device, and a flow measurement device. In order to meet the precise regulation of water flow, the system adopted closed-loop control. The control quantity was obtained by inputting the given flow setting value and the deviation value after flow measurement through proportional, integral, and differential (PID) algorithm calculation. It acted on the water flow adjustment device and automatically adjusted the valve opening size, thereby achieving continuous and stable operation of the water supply system, which improved the detection efficiency of the flaw detection equipment and reduced the labor intensity.
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Received: 17 June 2022
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[1] |
黄庆忠,黄诚.西门子S7-1200 PLC编程及应用[M].北京:电子工业出版社,2020.
|
[2] |
余志勇,李青,王燕杰.基于PID的流量调节阀的设计[J].计算机测量与控制,2016,24(8):118.
|
[3] |
陶永华.新型PID控制及其应用[M].北京:机械工业出版社,2002.
|
[4] |
黄宜庆.PID控制器参数整定方法及其应用研究[D].淮南:安徽理工大学,2009.
|
[5] |
何芝强. PID控制器参数整定方法及其应用研究[D]. 杭州:浙江大学,2005.
|
[6] |
王蕾,宋文忠.PID控制[J]. 自动化仪表,2004,25(4):1.
|
[7] |
施栋俊,范银兵,杨晓冬.基于西门子S7-1200PLC的温度PID控制[J].变频器世界,2022,25(6):87.
|
[8] |
黄波.基于PID的恒流量控制系统的设计[J].机电工程技术,2015,44(9):86.
|
[9] |
谭云彬.过程控制调节阀的选择[J].自动化与仪表,2004,23(3):79.
|
[10] |
李宝.水流量标准装置变频调速稳压系统研究[D].天津:天津大学,2009.
|
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