Heat transfer analysis of feedthrough flange under high alternating current condition  

作　　者：CAI Xiao WANG HaiPeng 

机构地区：[1]School of Physical Science and Technology,Northwestern Poly technical University,Xi'an 710072,China

出　　处：《Science China(Technological Sciences)》2020年第4期686-692,共7页中国科学（技术科学英文版）

基　　金：supported by the National Natural Science Foundation of China(Grant Nos.51734008,51522102,51327901 and 51474175);the National Key R&D Program of China(Grant No.2018YFB2001800);the Shannxi Key Industry Chain Program(Grant No.2019ZDLGY05-10)。

摘　　要：The heat transfer characteristics of feedthrough flange under high alternating current excitation were investigated by threedimensional finite element model.The correlations between the heat transfer behaviors and system parameters including applied current,ceramic thickness and working time were discussed comprehensively.A remarkable absorbed power beyond 100 W in flange would be produced by the electromagnetic field from wires.Under natural cooling condition,there is an obvious temperature rise about 40℃in the flange center after 10 min of current excitation.Three types of water cooling solutions acting on flange surface,e.g.line type,circle type and S type solutions,were proposed to reduce the flange temperature under high alternating current and long working time condition.By the S type water cooling mode,the best cooling effect can be achieved that the maximum temperature rise is about 20℃and the average temperature rise is less than 5℃.The heat transfer characteristics of feedthrough flange under high alternating current excitation were investigated by threedimensional finite element model. The correlations between the heat transfer behaviors and system parameters including applied current, ceramic thickness and working time were discussed comprehensively. A remarkable absorbed power beyond 100 W in flange would be produced by the electromagnetic field from wires. Under natural cooling condition, there is an obvious temperature rise about 40℃ in the flange center after 10 min of current excitation. Three types of water cooling solutions acting on flange surface, e.g. line type, circle type and S type solutions, were proposed to reduce the flange temperature under high alternating current and long working time condition. By the S type water cooling mode, the best cooling effect can be achieved that the maximum temperature rise is about 20℃ and the average temperature rise is less than 5℃.

关 键 词：heat TRANSFER COOLING solution feedthrough FLANGE INDUCTION HEATING 

分 类 号：TG115[金属学及工艺—物理冶金]