한국기계기술학회지 제24권 제5호 (p.864-870)

모터구동밸브 구동기 관성효과를 고려한 운전여유도 고찰

A Study on the Operability Margin of Motor Operated Valve Based on Actuator Inertia Effect
키워드 :
Motor operated valve(모터구동밸브),Gate valve(게이트 밸브),Globe valve(글로브 밸브)

초록

Motor-operated valve functions to block or connect the flow of fluid in nuclear power plant and especially safety-related valves are evaluated with operability margin calculations, that should have positive value in both open and close stroke. Although all actuators have inertia force which increase operating margin of valve closing stroke, inertia force, after control switch operation in actuator is not considered in evaluating operability margin calculation process. In this paper, the hidden margin by inertia force of each actuator model in closing stroke was studied quantitatively.