모터구동밸브 구동기 관성효과를 고려한 운전여유도 고찰
A Study on the Operability Margin of Motor Operated Valve Based on Actuator Inertia Effect
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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.
Abstract
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.
참고문헌 (5)
- U.S Nuclear Regulatory Commision, "Generic Letter 89-10 Safety-Related Motor Operated Valve Testing and Surveillance", ~ (1989)
- 김대웅, "차압이 모터구동 Flexible Wedge형 게이트밸브의 성능에 미치는 영향", 대한기계학회논문집 B, 31(2), pp.151~158 (2007), 대한기계학회
- 김대웅, "고차압에서 운전되는 모터구동 게이트밸브의 부하율 향상 방안", 한국유체기계학회 논문집, 8(1), pp.16~22 (2005), 한국유체기계학회
- Cho, T. D, "Dynamic Test Simulation of the Air-Operated Valve", Journal of the Korean Society of Mechanical Technology, 7(1), pp.79~82 (2005)
- Flowserve, "Limitorque Catalogue, Limitorque SMB Series Multi-Turn Actuators", ~ (2007)