A Study on the contact surface of Stem and Bellows of Gate Valve in Nuclear Power Plants

원자력발전소 게이트밸브의 스템 - 벨로우즈 접촉면에 관한 연구

  • 고석훈 (경희대학교 대학원 기계공학과) ;
  • 심동혁 (경희대학교 대학원 기계공학과) ;
  • 김대열 (경희대학교 기계공학과) ;
  • 최명진 (경희대학교 테크노공학대학)
  • Published : 2006.05.01

Abstract

Nuclear power generation is very dangerous in occasion that skirt of structure by earthquake although it is high effective generation that can make a lot of energies with few raw material. when design, it must consider a lot of problems caused by an earthquake. The seismic analysis of the structure has been great concern in the engineering society with an effort to reduce the severe damages from an earthquake. So the earthquake resistant design is one of the crucial design procedures of a gate valve used in nuclear power generation. The gate valve which has the contact area between stem and bellows. Because of the contact area. The gate valve should be given high stress and frictional wear. In this thesis, Considering the gate valve which has some contact distance between stem and bellows. The gate valve which has some contact distance is analyzed by a commercial FEM code of Ansys and Then compared to the gate valve behavior which doesn't have contact distance.

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