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Experience for Development and Capacity Certification of Safety Relief Valves

안전방출밸브 개발과 용량인증 사례

  • 김칠성 (신우공업(주)기술연구소) ;
  • 노희선 (신우공업(주)기술연구소) ;
  • 김강태 (신우공업(주)기술연구소) ;
  • 김지헌 (신우공업(주)기술연구소) ;
  • 김종수 (신우공업(주)기술연구소)
  • Published : 2005.06.01

Abstract

The purpose of this study is localization of safety relief valves for Nuclear Service. The safety relief valve is the important equipment used to protect the pressure vessel, the steam generator and the other pressure facility from overpressure by discharging the operating medium when the pressure of system is reaching the design pressure of the system. We developed design technology used FEM ' CFM about safety relief valve for Nuclear Service according to ASME (or KEPIC) Code and KHNP's Technical Specification. To prove validity of a design technology, actually, we manufactured and inspected and tested the sample products designed according to a developed technology. The capacity qualification test was achieved according to requirement of ASME(or KEPIC) Code by NBBI and the functional qualification test was achieved according to ASME QME-1 for operating condition in technical specification of KHNP by NLI. Therefore we have to achieve the development of safety relief valves for Nuclear Service with our own technologies.

Keywords

References

  1. KEPIC MN Code, 1998 Edition with 1998 through 2000 Addenda
  2. ASME, Boiler and Pressure Vessel Code, 1995 Edition with 1995 through 1997 Addenda
  3. KEPCO Design Specification 9 -184J237, Revision 0
  4. ANSI B16.34, 'Valve-Flanged, Threaded, and Welding End', 1995 Edition
  5. ANSI B1.1, 'Unified Inch Screw Threads (UN and UNR Thread Form)', 1982 Edition
  6. API Recommended Practice 520, 'Sizing, Selection, and Installation of Pressure-Relieving Devices in Refiners', 1993
  7. ANSYS, 'Ansys User's Manual for Revision 5.5.1' Swanson Analysis System Inc
  8. API Standard 527, 'Seat Tightness of Pressure Relief Valves', 1991
  9. ASME QME-1-1994, 'Qualification of Active Mechanical Equipment Used in Nuclear Power Plants.'