Development of On-line Displacement Monitoring System for High Temperature Steam Pipe of Fossil Power Plant

화력발전소 고온 증기배관 실시간 변위감시 시스템 개발

  • 이영신 (충남대학교 기계설계공학과) ;
  • 현중섭 (한국전력공사 전력연구원 발전연구실)
  • Published : 2005.06.01

Abstract

Most domestic fossil power plants have exceeded 100,000 hours of operation with the severe operating condition. Among the critical components of fossil power plant, high temperature steam pipe systems have had a many problems and damage from unstable displacement behavior because of frequent start up and shut down. In order to prevent the serious damage and failure of the critical pipe system in fossil power plants, 3-dimensional displacement measurement system was developed for the on-line monitoring. Displacement measurement system was developed with a use of a LVDT type sensor and two rotary encoder type sensors. This system was installed and operated on the real power plant successfully.

Keywords

References

  1. Ha, J. S. and Song, G. W., 'A Study on the Life Extension Technology in the Fossil Power Plants,' Technical Report, TR.97GS06.S2001.046, Korea Electric Power Research Institute, 2000
  2. King, J. P., 'Current Experience in Typical Problems and Failures with Boiler Piping Components and Supports,' PVP-Vol. 376, Component Analysis and Evaluation, Aging and Maintenance, Pipe Supports, ASME, pp. 161-168, 1998
  3. Flaman, M. T. and Mills, B. E., 'Development of a Strain Gauge Based On-line Structural Integrity Monitoring System for Fossil-Fuelled G.S.,' CEA Project No. 726 G 627, Ontario Hydro Research Division, USA, 1992
  4. Hahn, B., Weber, J. and Nerger, D., 'In-service Condition Monitoring of Piping Systems in Power Plants Requirements and Advanced Techniques,' OMMI, Vol. 1, Issue 1, pp. 1-13, 2002
  5. Takahashi, Y., 'Trend of Operating Data Monitoring and Fatigue Evaluation System for BWR in Japan,' SMIRT-12K. Kussmaul, North-Holland, pp. 265-270, 1993
  6. Algor[R] PipePak, PipePlus Version 7.02, 2000
  7. ASME Code for Power Piping, B31.1, 1998