管内自旋扭带转速的研究  

Study on the Rotating Speed of Self-rotating Twisted Tape Inserted Tubes

作　　者：林清宇[1] 林靖宇[1] 林榕端[1] 李健[1] 

机构地区：[1]广西大学,南宁530004

出　　处：《中国机械工程》2007年第16期1970-1973,共4页China Mechanical Engineering

基　　金：国家自然科学基金资助项目(29966001);广西科学基金资助项目(桂科青0447005)

摘　　要：通过对换热管内流体的运动分析和自旋扭带的转动力矩与阻力矩分析,推导出扭带的转速计算式。扭带转速特性的实验结果与理论推导较一致。理论分析及实验结果均表明,影响换热管内自旋扭带转速的主要因素是流体轴向流速及扭带半扭距。By the kinematic analysis of flow, and the analysis of drive moment and resistance moment, the rotating speed expression of self-rotating twisted tape was deduced. The result of the rotating speed experiment is consistent with the theoretical one. The results show that the axial speed of the flow and the half-pitch of the twisted tape are the important factors to the rotating speed of the self-rotating twisted tape.

关 键 词：换热管 自旋扭带 转速 强化传热 

分 类 号：TQ050[化学工程] TK172[动力工程及工程热物理—热能工程]