富氧燃煤锅炉烟气压缩系统动态特性分析

发布时间：2018-01-05 00:31

  本文关键词：富氧燃煤锅炉烟气压缩系统动态特性分析　出处：《系统仿真学报》2017年10期 　论文类型：期刊论文

  更多相关文章： 富氧燃煤锅炉 仿真模型 烟气压缩系统 动态特性

【摘要】：以概念设计的300 MW富氧燃煤锅炉烟气压缩系统为研究对象,采用集中参数法建立了烟气压缩机和烟气冷却器动态数学模型,并建立了相应仿真模型。在B-MCR工况下,进行了给煤机转速和烟气压缩机转速等扰动试验。结果表明:当给煤机转速扰动或烟气压缩机转速扰动时,烟气压缩系统各运行参数响应较为灵敏、变化幅度较大;而一次再循环风机挡板开度扰动和烟气冷却器冷却水阀门开度扰动,对系统各运行参数影响小,响应时间长。
[Abstract]:The dynamic mathematical model of flue gas compressor and flue gas cooler is established by means of lumped parameter method, taking the 300MW oxygen-enriched coal-fired boiler flue gas compression system as the research object. The corresponding simulation model is established. Under B-MCR condition, the disturbance tests such as the speed of coal feeder and the speed of flue gas compressor are carried out. The results show that: when the speed of coal feeder or gas compressor is disturbed. The operating parameters of flue gas compression system are sensitive to each other and vary greatly. However, the opening disturbance of the baffle of the primary recirculation fan and the opening disturbance of the cooling water valve of the flue gas cooler have little influence on the operation parameters of the system, and the response time is long.
【作者单位】： 华北电力大学能源动力与机械工程学院;
【分类号】：TM621.2;TP391.9
【正文快照】： 引言1近年在火力发电领域,富氧煤粉燃烧技术被认为是减少电厂CO2排放的最好办法之一[1]。在富氧煤粉燃烧机组中,烟气压缩系统是实现CO2捕集和回收的关键系统,通过多级压缩多级冷却,脱去烟气中的大部分水分并且提高烟气的压力,为烟气的进一步纯化和回收创造条件。由于拥有独特，

本文编号：1380817