'A METHOD OF WELD-LESS SUPPORTING OF HEAT TRANSFER COIL WITH A THERMO MECHANICAL LOAD BEARING SLEEVE UNDER HIGH TEMPERATURE AND EROSION PRONE ENVIRONMENT OF CIRCULATING FLUIDIZED BED BOILERS'

摘要

The present invention relates to a weld-less method of supporting heat transfer coil tubes exposed to thermo mechanical loads and a load carrying sleeve operating under high temperature and erosion prone environment comprising the steps of locating a plurality of sleeves at predetermined locations along the heat transfer coil tubes, a first plurality of the plurality of sleeves being fixed to the tubes in a floating manner to allow differential thermal expansion between the tubes and the floating sleeves, and rigidly fixing a second plurality of sleeves with the tube maintaining an intra-radial interference gap.