Design and dynamic analysis of a low temperature economizer

LI Bin; DANG Zili

English

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Design and dynamic analysis of a low temperature economizer

Thermal Power Generation Vol. 43, Issue 2, Pages: 25-29(2014)

更新时间：2025-09-28

- Design and dynamic analysis of a low temperature economizer
- 作者机构：
  
  华北电力大学能源与动力工程学院
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK229.6
- Published：2014
- 稿件说明：
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LI Bin, DANG Zili. Design and dynamic analysis of a low temperature economizer[J]. Thermal Power Generation, 2014, 43(2): 25-29.
DOI：

LI Bin, DANG Zili. Design and dynamic analysis of a low temperature economizer[J]. Thermal Power Generation, 2014, 43(2): 25-29. DOI：

摘要

对某220MW机组锅炉加装的低温省煤器进行热力设计。低温省煤器采用H型鳍片管

布置在空气预热器与除尘器之间

利用排烟余热加热凝结水使排烟温度从160℃降至135℃。建立了低温省煤器的分布参数数学模型

仿真试验结果表明

其稳态值与对应理论计算数据误差较小

该模型具有较高的静态精度

有助于正确评价低温省煤器系统的安全性和可靠性。

Abstract

Thermal-design for a low temperature economizer added on a 220 MW unit boiler was carried out.This low temperature economizer applied H type fins tubes

and was laid between the air preheater and the dust remover.Via heating the condensate water through exhaust heat

the economizer can make the exhaust temperature decrease from 160℃to 135℃.The distribution parameter mathematical model of the low temperature economizer was established and the simulation test was performed.The results show that

the error between the simulation results and the corresponding theoretical computation data was small

indicating this model has relative high static accuracy

which is beneficial to evaluating the safety and reliability of the low temperature economizer system correctly.

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