用于烟气余热回收的塑料翅片管换热器的设计及分析

doi:10.3969/j.issn.0438-1157.2014.z1.028

化工学报 ›› 2014, Vol. 65 ›› Issue (S1): 175-179.DOI: 10.3969/j.issn.0438-1157.2014.z1.028

用于烟气余热回收的塑料翅片管换热器的设计及分析

陈林, 孙颖颖, 梁江涛, 杜小泽, 杨立军

电站设备状态监测与控制教育部重点实验室, 华北电力大学能源动力与机械工程学院, 北京 102206

收稿日期:2014-01-28 修回日期:2014-02-11 出版日期:2014-05-30 发布日期:2014-05-30
通讯作者: 杜小泽
基金资助:
中央高校基本科研业务费专项资金。

Design and analysis of plastic fin-tube heat exchanger for flue gas heat recovery

CHEN Lin, SUN Yingying, LIANG Jiangtao, DU Xiaoze, YANG Lijun

Key Laboratory of Condition Monitoring and Control for Power Plant Equipment, Ministry of Education, School of Energy, Power and Mechanical Engineering, North China Electric Power University, Beijing 102206, China

Received:2014-01-28 Revised:2014-02-11 Online:2014-05-30 Published:2014-05-30
Supported by:
supported by the Fundamental Research Funds for the Central Universities.

摘要/Abstract

摘要： 排烟热损失约占锅炉全部热损失的一半以上，回收烟气余热有助于节能减排。针对烟气余热回收中的腐蚀问题，基于导热塑料设计了耐腐蚀的翅片管换热器。结合1000 WM火力发电机组烟气余热回收的运行参数，运用经验证的模型计算了换热器的换热面积和外形体积，简要分析了塑料热导率和凝结水流程对这些设计参数的影响，所得到的结果有望为烟气余热回收的工程应用提供参考。

关键词: 烟道气, 腐蚀, 传热, 导热塑料, 翅片管换热器

Abstract: Heat loss due to exhausted flue gas accounts for more than half of boiler's total heat losses. Flue gas heat recovery helps to reduce both fuel consumption and pollution emission, which is of great significance. One of the main problems in flue gas heat recovery that restricts the flue gas outlet temperature is the low temperature acid corrosion to metal heat exchangers. In order to overcome this problem, an anti-corrosion fin-tube heat exchanger based on thermally conductive plastic was designed as a low temperature economized. Using the heat recovery operational condition in a 1000 MW thermal power plant, the parameters of heat transfer area and outline dimensions of the heat exchanger were calculated by a validated mathematical model. Then, the influences of plastic thermal conductivity and number of flow paths on the design parameters were analyzed. It is hoped that the results in this paper could give some reference to engineering applications.

Key words: flue gas, corrosion, heat transfer, thermally conductive plastic, fin-tube heat exchanger

中图分类号:

TK124

陈林, 孙颖颖, 梁江涛, 杜小泽, 杨立军. 用于烟气余热回收的塑料翅片管换热器的设计及分析[J]. 化工学报, 2014, 65(S1): 175-179.

CHEN Lin, SUN Yingying, LIANG Jiangtao, DU Xiaoze, YANG Lijun. Design and analysis of plastic fin-tube heat exchanger for flue gas heat recovery[J]. CIESC Journal, 2014, 65(S1): 175-179.

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用于烟气余热回收的塑料翅片管换热器的设计及分析

Design and analysis of plastic fin-tube heat exchanger for flue gas heat recovery

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