污垢条件下换热器的热设计
Heat Exchanger Design under Fouling Condition
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- DOI:
- 作者:
- 张穹, 孙建红
Zhang Qiong, Sun Jianhong
- 作者单位:
- 中石化华东管道设计研究院, 江苏徐州 221008
Sinopec East China Institute of Pipeline Design and Research, Xuzhou 221008, China
- 关键词:
- 换热器;污垢;污垢热阻设计法;洁净系数设计法;面积增加设计法
heat exchanger;fouling;fouling thermal resistance design method;clean coefficient design method;area increasing percentage design method
- 摘要:
- 文章阐述了污垢工况下换热器设计的特殊性,在对传统的污垢热阻设计法、新近发展起来的洁净系数设计法和面积增加百分比设计法进行阐述的基础上,以具体实例分析对比了分别用这三种设计方法对同一工况进行设计计算得到的不同结果。具体实例的计算结果表明:对于污垢工况下的换热器设计,采用洁净系数法和面积增加百分比法进行设计计算,比采用传统的污垢热阻法具有更高的精确性、合理性和经济性,传统的污垢热阻法太保守,对节约工程投资不利。
In this paper, the particularity of heat exchanger design under fouling condition is analyzed.Three different design methods under fouling condition, i.e. the traditional fouling thermal resistance design method, the currently developed clean coefficient design method and the area increasing percentage design method, are clarified. Then, these three methods are respectively used to calculate for the same case and obtain different results. Through the example of heat exchanger design under fouling condition, it is shown that the currently developed clean coefficient design method and the area increasing percentage design method have better accuracy, rationality and economy, and the traditional fouling thermal resistance design method is too conservative to save engineering investment2009,03(03): 54-56 收稿日期：2008-8-21分类号：TE965作者简介：张穹（1973-），男，江苏徐州人，工程师，1998年毕业于中国石油大学（北京）化学工程专业，现从事油气储运设计和科研工作。参考文献：
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