Examination and Measures on Failure of Hydraulic Oil Supply Pipe of Control Valve of Steam Turbine in 200MW Thermal Power Plant

200MW급 화력발전소 고압터빈 제어밸브 압유배관의 절손 원인과 대책

  • Published : 2002.05.01

Abstract

A case history is presented pertaining to piping fatigue by vibrations and sustain stresses in the hydraulic oil supply system for control valves in a 200MW thermal power plant that ultimately resulted in pipe rupture. The Piping was designed to supply the hydraulic oil for turbine control valves. Testing and analyses were performed on the system to develop solution to repair work on failures.

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