Tube support structure for a fluidized bed heat exchanger

摘要

A fluidized bed heat exchanger in which a grid plate is supported in a housing for receiving a bed of particulate material, at least a portion of which is combustible. At least one perforated support pier projects from the surface of the grid plate and air is passed through the grid plate, the support pier and the material to fluidize the material. One or more heat exchange tubes extend within the housing and are supported by the support pier so that the air passing through the pier also passes over the tubes. Each tube extends in a serpentine relation to form a plurality of spaced parallel sections and a support structure is provided for supporting the sections relative to each other.