비례압력제어 밸브에 내장된 안전밸브의 유동특성

In this study, flow characteristics of the poppet valve for safety valve in electro-hydraulic proportional pressure control equipment were analyzed. A safety valve with a poppet which are applied in industrial field have some advantages like fast response and stable operation. But the displacement is very short and the flow path is very narrow because of above-mentioned roll. Tiny displacement affects the discharge coefficient and eddy flow directly. So, it is very important study to analyze the flow characteristics of the poppet valve in electro-hydraulic proportional pressure control equipment. In this study, flow field numerical analysis of the object poppet valve of which displacement is from 0.1 to 0.3mm was operated. And distribution characteristics of the flow pressure and velocity were analyzed.