Conversion fluid bed chamber assembly

Abstract

A fluid bed chamber assembly that is affixed to or incorporated onto the bottom portion of a combustion chamber of a package boiler assembly to increase combustion efficiency of the boiler. The fluid bed chamber assembly comprises a lower region and an upper region. The lower region having a plurality of inlet means for admitting fluidizing gas to the lower region for fluidizing a bed of particles contained therein, heat exchange tubes disposed about the side walls of the lower region, and first and second in-bed heat exchange tubes which are disposed substantially horizontal within the lower region. The upper region comprises at least one secondary air inlet means, at least one tertiary air inlet means, at least one fuel feed inlet means, and at least one recycle inlet means, all of which are disposed within the side wall of the conversion fluid bed chamber assembly.

Dependencies are inferred from the claim text.