燃油锅炉改LNG锅炉PLC系统的设计与应用  

Design and Application of PLC System which Oil-fired Boilers Transformed into LNG Boiler

作　　者：魏宝军[1] 张刚刚 刘九龙[1] 

机构地区：[1]天津地热勘查开发设计院,天津300250 [2]山钢集团济钢物流管理中心,山东济南250101

出　　处：《电气传动》2011年第12期79-82,共4页Electric Drive

摘　　要：为了使旧锅炉达到节能减排的目标,将燃油锅炉改造为燃烧LNG锅炉进行了可行性分析。针对LNG锅炉的结构特点及工艺要求,以SAMSUNG PLC为核心控制设备,利用WINGPC3.70软件实现LNG锅炉的全自动燃烧、蒸汽压力、液位控制等。主要阐述了该燃烧控制系统的组成和配置,介绍了实现的功能、方法及PLC程序。实践证明,该设计是合理和高效的。In order to achieve the saving energy purpose of old boiler, the feasibility analysis which oil-fired boiler transformed into LNG - fired boiler was conducted. As for the structural characteristics and technology requirements of the LNG boiler, the SAMSUNG PLC as the core control equipment, the WlNGPC3.70 soft- ware is used to realize automatic burn,steam pressure and liquid level control of LNG boiler. Mainly described the composition and configuration of the combustion control system, and described the functions, methods and PLC program. Proved that the design is reasonable and efficient.

关 键 词：锅炉 液化天然气 可编程控制器 系统 梯形图 

分 类 号：TP29[自动化与计算机技术—检测技术与自动化装置]