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

Lee Young Shin (충남대학교 기계설계공학과)
Hyun Jung Seob (한국전력공사 전력연구원 발전연구실)
Publication Information
Journal of the Korean Society for Precision Engineering / v.22, no.6, 2005 , pp. 83-89 More about this Journal
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
On-line monitoring system; LVDT; Piping support; High Temperature Steam Pipe; Fossil Power Plant;
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