华南理工大学学报(自然科学版) ›› 2005, Vol. 33 ›› Issue (1): 66-69.

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考虑污垢时内螺纹管冷凝器的经济性分析

刘金平 刘雪峰   

  1. 华南理工大学 电力学院,广东 广州 510640
  • 收稿日期:2004-04-13 出版日期:2005-01-25 发布日期:2005-01-25
  • 通信作者: 刘金平(1962-),男,博士,副教授,主要从事换热设备优化运行和污垢热阻以及制冷空调系统的优化设计与运行方面的研究 E-mail:mpjpliu@scut.edu.cn
  • 作者简介:刘金平(1962-),男,博士,副教授,主要从事换热设备优化运行和污垢热阻以及制冷空调系统的优化设计与运行方面的研究

Economic Analysis of Rifled Tube Condenser Considering Fouling Resistance

Liu fin-ping  Liu Xue-feng   

  1. College of Electric Power,South China Univ.of Tech.,Guangzhou 510640,Guangdong,China
  • Received:2004-04-13 Online:2005-01-25 Published:2005-01-25
  • Contact: 刘金平(1962-),男,博士,副教授,主要从事换热设备优化运行和污垢热阻以及制冷空调系统的优化设计与运行方面的研究 E-mail:mpjpliu@scut.edu.cn
  • About author:刘金平(1962-),男,博士,副教授,主要从事换热设备优化运行和污垢热阻以及制冷空调系统的优化设计与运行方面的研究

摘要: 为研究各种换热设备因污垢热阻的存在而造成大量能源浪费的实际运行过程.在考虑污垢的情况下,综合换热管的阻力特性,对比分析了分别选用内螺纹管和内壁光滑管的冷凝器的经济性,探讨其是否能够提高冷凝器的换热性能从而降低系统能耗.结果表明,选用内螺纹管不一定能够提高冷凝器运行的经济性,冷凝器存在临界流速和临界时间.文中结果为冷凝器的设计和经济运行提供了理论依据和指导.

关键词: 污垢, 冷凝器, 内螺纹管, 经济性

Abstract:

In 0rder to investigate the actual running process of all kinds of heat exchangers with great energy waste eaused bv the fl0uling resistance,the economy performance of two condensers respectively with rifled tubes and smooth tubes are analyzed and compared,aiming to determine whether the energy consumption of the system can be decrleased by selecting different tubes to improve the heat exchange perform ance of the condenser.The fouling and resistanee eharacteristies 0f the heat exchange tube were both taken into account during the analyses. The result shows that rined tubes eannot always enhance the economy perform ance of the condenser,and there are critical ve-l0eitv and eritieal time in the condenser.Thus,a theoretical basis and some references were given to the design and economical operation of the condenser.

Key words: fouling, condenser, rifled tube, economy perform ance