对循环流化床锅炉的详细介绍分析.doc

目录
摘要…………………………………………………………………………………2
第一章 前言…………………………………………………………………………4
第二章 循环流化床锅炉动态特性分析……………………………………………4
第三章 循环流化床锅炉自动控制系统……………………………………………4
3.1 给煤量控制系统……………………………………………………………4
3.2 一次风压控制系统…………………………………………………………5
3.3 床温控制系统………………………………………………………………5
3.4 二次风控制系统……………………………………………………………5
3.5 引风控制系统 ……………………………………………………………5
第四章 大型循环流化床机组的联动控制分析……………………………………5
4.1二台循环流化床锅炉、一台汽轮机的联动控制…………………………5
4.2 抽汽工况下的联动控制……………………………………………………6
第五章 125MW循环流化床热水锅炉主要热工测点布设分析………………………6
5.1温度测点布置………………………………………………………………6
　  5.2压力测点布置………………………………………………………………6
5.3流量测点布置………………………………………………………………7
　  5.4其它测点……………………………………………………………………7
谢辞……………………………………………………………………………………8
参考文献………………………………………………………………………………8

摘要
循环流化床锅炉因其燃烧适应性广，负荷调节性强以及环保性能优良而越来越受到重视。大量循环流化床锅炉的装备对于优化我国电力结构，改善电力供应品质提高我国整体资源利用效率以及降低污染物排放方面有重要作用。本文根据笔者多年火电工程施工实践，详细分析介绍了循环流化床锅炉动态特性及自动控制系统组成，并结合工程实例，对125MW循环流化床锅炉机组联动控制设计与安装调试技术要点进行了详细阐述，对其热工参数测点布设及DCS控制作了简要介绍。
　　
关键词：大型火电厂；循环流化床锅炉；联动控制；热工参数测点；DCS控制
　　
        
Abstract

The circulating fluidized bed boiler because its burning wide adaptability, load and excellent performance of regulatory strong environmental more and more attention to. Lots of circulating fluidized bed boiler in the equipment for optimizing the structure of electric power, improve the power supply quality improve our overall efficiency of using resources and reduce pollutants has an important role. Based on the construction practice during many thermal power engineering, introduced a detailed analysis of the dynamic characteristics of circulating fluidized bed boiler and automatic control system composition, and combined with practical engineering, the circulating fluidized bed boiler unit linkage 125MW control design and installation commissioning technical points are expatiated on its thermodynamic parameters, sensors and DCS control are briefly introduced.
Keywords: large coal-fired plants; The circulating fluidized bed boiler; Linkage control; Thermal parameter point; DCS control