凝结理论在汽轮机设计中应用的探讨  

Study on Application of Condensation Theory to Design of Steam Turbine

作　　者：李亮[1] 丰镇平[1] 陈红梅[1] 李国君[1] 

机构地区：[1]西安交通大学能源与动力工程学院,西安710049

出　　处：《热力透平》2005年第1期36-40,共5页Thermal Turbine

基　　金：国家自然科学基金项目;No.50306018;No.50336050

摘　　要：　本文在总结西安交通大学湿蒸汽研究小组近年来部分研究成果的基础上,提出自发凝结和非均质凝结流动理论应用于蒸汽透平设计的两条技术途径。通过对自发凝结和非均质凝结进行对比,指出非均质凝结优于自发凝结的原因在于非均质改变了凝结模式。基于物理学中对带电微粒表面张力特性的研究成果,进一步提出利用电场影响凝结过程,在纯净水蒸汽中实现与非均质凝结类似过程的设想。In this paper a review is made to summarize some achievements obtained in the topic of wet steam condensing flows by the wet steam research group at Xi'an Jiaotong University in the past several years. Two technical approaches of the condensation theory applying to the design of steam turbine are proposed. Comparison between spontaneous condensation and heterogeneous condensation indicates that due to the substantial change of condensation pattern the heterogeneous condensation exhibits much advantage than spontaneous condensation. With some updated results available concerning the effects of electrical field on the surface tension of water particles, a new condensation process is suggested. This process is similar to the heterogeneous condensation but occurs in pure steam.

关 键 词：汽轮机设计 应用 结理论 均质凝结 西安交通大学 自发凝结 研究成果 技术途径 蒸汽透平 流动理论 张力特性 带电微粒 凝结过程 湿蒸汽 非均质 物理学 水蒸汽 

分 类 号：TK262[动力工程及工程热物理—动力机械及工程] O414.2[理学—理论物理]