基于PLC的管道内焊机控制系统  

Control system of pipe internal welding machine based on PLC

作　　者：皮亚东[1] 孙筠竹 董青[1] 张华[1] 梁天军[1] 于金柱[1] 

机构地区：[1]中国石油天然气管道科学研究院,河北廊坊065001 [2]同方川崎空调设备有限公司,河北廊坊065001

出　　处：《机电工程》2011年第2期206-208,223,共4页Journal of Mechanical & Electrical Engineering

基　　金：中国石油天然气集团公司科技发展部项目(2008BAB30B04)

摘　　要：为解决管道内焊机控制系统的可靠性和经济性等问题,将现代控制技术应用到管道工程建设中,深入分析了国外的研究水平及研究动态,结合我国的施工环境,经过多次改进设计,系统采用可编程控制器PLC为核心,电机的控制电路和驱动电路作为外围电路,实现了内焊机行走距离的精确控制。PLC软件修改方便,易于实现各种动作的互锁,减少了外围线路的复杂性。该控制系统被成功地应用于西二线,长期实验结果表明该系统可靠性高、能够适应各种环境工况,达到了预期目标。In order to solve the reliability and economy problems of the pipe internal welding machine＇s control system,the research and development of foreign construction technology were reviewed seriously,the construction environment of our country was taken into account,then the modern control technology was applied to pipe engineering construction.Being improved for many times and using programmable logic controller（PLC） as controlling core of the system and control circuit of electric motor as peripheral circuit,the precision control of the movement of pipe internal welding machine was realized successfully.Because it is convenient to modify the program and is easy to realize interlock of various actions for PLC,the complexity of peripheral circuit was reduced.The control system was successfully utilized in the Second West-East Gas Transmission Pipeline Project.Engineering practice indicates that the control system has a high reliability and is suitable for various complicated environment,the design target was reached.

关 键 词：内焊机 可编程控制器 控制电路 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]