Proceedings of the Korean Society of Marine Engineers Conference (한국마린엔지니어링학회:학술대회논문집)

The Korean Society of Marine Engineering (한국마린엔지니어링학회)
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Study on Loss Reduction for Tilting Disk Check Valve Installed in Piping System

배관용 틸팅디스크 체크밸브의 손실저항 절감에 관한 연구

  • 김정환 (한국조선기자재연구원 연구개발팀) ;
  • 박재현 (한국조선기자재연구원 연구개발팀) ;
  • 이현식 (한국조선기자재연구원 전략사업기획단) ;
  • 남시환 ((주)범한금속 기술연구소) ;
  • 황성홍 ((주)범한금속 기술연구소)
  • Published : 2006.06.22
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Abstract

In generally, under the influence of over-pressure drop, serious problems such as cavitation, choked flow, flashing and vibration has been coming around the tilting disk check valve. A PIV experiment to examine the cause of energy loss has been performed and the improvement configuration of valve seat based on this visualization results is proposed. In the visualization results, flows in the piping system became instability under the influence of the shape of boss. This unstable flows induces sudden pressure drop in the piping system. So, we change the configuration of boss as a streamlined design to be stabilized the flows. A pressure measurement has been performed to know that the influence of the configuration change. In result, the rate of pressure loss reduction is about 22% at the position of No. 2 and 24.2% at the position of No. 6 in comparison with pre-improved shape.

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