• 제목/요약/키워드: 주증기관 차단밸브

검색결과 1건 처리시간 0.015초

발전소 주증기 배관 소음 발생 원인 규명 (Identification of Noise Source from Main Steam Line in Power Plant)

  • 손석만;이준신;이선기;이욱륜;이상국
    • 동력기계공학회지
    • /
    • 제7권3호
    • /
    • pp.23-28
    • /
    • 2003
  • In heavy nuclear power plant, high energy through main steam line is provided to turbine that generate the electric power. Since plant had generated power, high noise has been occurred. Noise make equipments and work environment worse. For finding out the location and the cause of making noise, noise was measured along main steam line at open/close test of Main Steam Isolation Valve (MSIV hereafter). As the result, it was identified that the vortex shedding in the cavity of MSIV is main noise source. The profile change of MSIV seat ring was proposed as the method of noise reduction. After filletting MSIV seat ring, the noise level reduced $10{\sim}20dB$ compared before the change of profile.

  • PDF