串口通信技术在炉膛燃烧监控系统中的应用  

The application of serial communication in the combustion monitoring system

作　　者：杨超[1] 魏汉雨 周怀春[1] 罗自学[1] 杨诗旺[3] 黄建军[3] 

机构地区：[1]华中科技大学煤燃烧国家重点实验室 [2]中国电力国际发展有限公司 [3]中国电力姚孟发电有限责任公司

出　　处：《微计算机信息》2006年第09S期81-83,共3页Control & Automation

基　　金：国家科技型中小企业技术创新基金(01C26214200176)

摘　　要：某300MW电站锅炉安装了一套燃烧监控系统,利用炉本体上分层布置的数个CCD火焰探头拍摄炉内燃烧火焰图像实时计算炉内三维温度分布,空间分辨率低于1m3,刷新时间不超过5s。本文论述了在解析CCD串口通信协议的基础上,基于R485总线对CCD参数设置进行远程控制,以及利用Modbus协议以串行通信方式实现本系统与DCS的数据交换,以此实现两套系统的有机集成与信息共享。The combustion monitoring system has been installed in a 300 MW Power Plant. The 3-D temperature distribution in the boiler furnace can be acquired by the system through a number of CCD flame detectors. The precision of the temperature distribution is less than 1 m3, and the refresh time is less than 5 seconds. In this paper, the method to set the remote CCD （Charge Coupled Device） parameters by RS485 bus is introduced. The method to realize the data exchange between combustion monitoring system and DCS based on the Modbus protocol is introduced too. In this wav. the two svstems can be well integrated to share the information.

关 键 词：燃烧监控系统 串口通信 RS485总线 MODBUS协议 

分 类 号：TK32[动力工程及工程热物理—热能工程]