Optimization on air and flue gas control system for circulating fluidized bed boilers

LIU Hang; YAO Zhu; ZHANG Kewei

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Optimization on air and flue gas control system for circulating fluidized bed boilers

更新时间：2025-09-28

- Optimization on air and flue gas control system for circulating fluidized bed boilers
- Thermal Power Generation Vol. 46, Issue 3, Pages: 126-131(2017)
- 作者机构：
  
  1. 哈尔滨汇通电力工程有限公司
  2. 黑龙江省电力勘察设计院
  3. 大唐东北电力试验研究所有限公司
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK229.66
- Published：2017
- 稿件说明：
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LIU Hang, YAO Zhu, ZHANG Kewei. Optimization on air and flue gas control system for circulating fluidized bed boilers[J]. Thermal power generation, 2017, 46(3): 126-131.
DOI：

LIU Hang, YAO Zhu, ZHANG Kewei. Optimization on air and flue gas control system for circulating fluidized bed boilers[J]. Thermal power generation, 2017, 46(3): 126-131. DOI：

摘要

在介绍循环流化床(CFB)锅炉常规控制方式的基础上

分析了其烟风系统原采用常规总风量计算方式的控制策略使变工况下燃烧不稳定的问题。提出烟风系统的优化方案

设计了一种自适应的总风量计算方法

可以在不同调节需求下保证CFB锅炉燃烧的稳定性。同时根据床温和氧体积分数对一、二次风的配风方式进行设计。最后通过实例分析验证该方案能极大地优化烟风系统的调节效果

且其控制组态简单

通用性强

可大范围应用于CFB锅炉机组中。

Abstract

The conventional control method for circulating fluidized bed boilers was presented.The flue gas system's original control strategy using the conventional air volume calculation method made the combustion unstable in variable working conditions.To solve this problem

a self-adaptive total air volume calculation method was designed in the air and flue gas system optimization scheme

which could ensure the combustion stability of the CFB boiler.Moreover

according to the bed temperature and oxygen volume fraction

the primary air and secondary air control methods were designed.Finally

through instance analysis

this methods was proved to be efficient in improving the moderating effect of flue gas system by its simple and versatility logic

it can be extensively applied to the CFB boilers.

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