고압용기의 계장선 통과부위 밀봉기술 개발
Development of Sealing Technology for Instrumentation Feedthrough of High Pressure Vessel
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초록
Fuel Test Loop(FTL) is a facility which could conduct a fuel irradiation test at HANARO(High-flux Advanced Neutron Application Reactor). FTL simulates commercial NPP’s operating conditions such as the pressure, temperature and neutron flux levels to conduct the irradiation and thermo-hydraulic tests. The In-Pile Test Section(IPS) installed in HANARO FTL is designed as a pressure vessel design conditions of 350℃,17.5MPa. The instrumentation MI-cables for thermocouples, SPND and LVDT are passed through the sealing plug, which is in the pressure boundary region and is a part of instrumentation feedthrough of MI-cable. In this study, the brazing method and performance test results are introduced to the sealing plug with BNi-2 filler metal, which is selected with consideration of the compatibility for the coolant. The performance was verified through the insulation resistance test, hydrostatic test, and helium leak test.
Abstract
Fuel Test Loop(FTL) is a facility which could conduct a fuel irradiation test at HANARO(High-flux Advanced Neutron Application Reactor). FTL simulates commercial NPP’s operating conditions such as the pressure, temperature and neutron flux levels to conduct the irradiation and thermo-hydraulic tests. The In-Pile Test Section(IPS) installed in HANARO FTL is designed as a pressure vessel design conditions of 350℃,17.5MPa. The instrumentation MI-cables for thermocouples, SPND and LVDT are passed through the sealing plug, which is in the pressure boundary region and is a part of instrumentation feedthrough of MI-cable. In this study, the brazing method and performance test results are introduced to the sealing plug with BNi-2 filler metal, which is selected with consideration of the compatibility for the coolant. The performance was verified through the insulation resistance test, hydrostatic test, and helium leak test.
참고문헌 (7)
- S. H. Ahn, "Operation of fuel test loop for irradiation test of PWR fuels in HANARO", Proc. of the 3rd International Symposium on Material Testing Reactors, Czech Republic (2010)
- 안성호, "고온・고압 노내조사시험설비의 부동태 처리", 한국기계기술학회지, 12(4), pp.155~160 (2010), 한국기계기술학회
- 유인택, "브레이징 접합개론" (2005), 기술정보
- ASME Section Ⅸ, "Qualification Standard for Welding and Brazing Procedures, Welders, Brazers, and Welding and Brazing Operators", Part QB Brazing, ~
- 박국남, "노내시험부 압력용기조립체의 Mock-up 제작 및 차압시험", 한국기계기술학회지, 8(2), pp.53~57 (2006)
- ASME, "Testing, Boler and pressure vessel code, sec Ⅲ", subsection NB-6000, ~
- Manufacturing Specification for In-Pile Section, "Korea Atomic Energy Research Institute", RWE NUKEM, RWE NUKEM, pp.2006, ~