A rigid and reliable support device for heat transfer surfaces in a fluidized bed combustion boiler.

摘要

The invention relates to a rigid and reliable support device for heat transfer surfaces in a fluidized bed combustion boiler, comprising at least one vertical steam cooled hanger tube (1) placed in between a pair of horizontal coil assemblies (2); and a solid forged strap (3) connecting the horizontal coils (2) to the vertical tube (1), the vertical tube (1) having a central hole configured with close tolerances to allow insertion of the forged strap (3) into the vertical tube (1) by shrink fit and welded.