CAJ | 학술논문

目前大多数引水工程建设,远距离输水需要中途加压,才能使水源满足城市供水要求,为此采用PLC,使控制程序既具有处理复杂逻辑控制的能力,又具有方便修改流程参数的能力。在分析具体监测系统控制流程的基础上,介绍了利用PLC的梯形图编程进行逻辑控制的方法,给出了程序原理图,讨论了温度保护、变频调速控制、数据采集和处理等主要问题的处理方法。具体应用说明采用PLC通过编写梯形图进行引水工程加压控制,可有效地提高加压系统的工作效率。
목전대다수인수공정건설,원거리수수수요중도가압,재능사수원만족성시공수요구,위차채용PLC,사공제정서기구유처리복잡라집공제적능력,우구유방편수개류정삼수적능력。재분석구체감측계통공제류정적기출상,개소료이용PLC적제형도편정진행라집공제적방법,급출료정서원리도,토론료온도보호、변빈조속공제、수거채집화처리등주요문제적처리방법。구체응용설명채용PLC통과편사제형도진행인수공정가압공제,가유효지제고가압계통적공작효솔。
Presently,on most water diversion projects,high pressure should be adopted for long distance water conveyance to satisfy the requirements of urban water supply.The PLC software for booster pump stations is developed,so that control program not only has the capacity of processing complex logic system,it also has the capacity of convenient modification of flow parameters.Through a detailed analysis about control flow of the monitoring system,the article presents logic control approaches by PLC ladder diagram programming,gives theoretical diagram of the program,and addresses solutions for primal problems of temperature protection,variable frequency control,data collection and processing.Its application indicates that pressure control by PLC ladder diagram programming can effectively improve working efficiency of booster pump station.