초록 ▼

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 plurali

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.

대표청구항 ▼

[ What is claimed is:] [1.]1. A boiler comprising:a combustion chamber having a top portion, a bottom portion where fuel may be burned and a freeboard region; anda fluid bed assembly affixed to said bottom portion in a manner whereby said freeboard region is effectively increased without adding addi

[ What is claimed is:] [1.]1. A boiler comprising:a combustion chamber having a top portion, a bottom portion where fuel may be burned and a freeboard region; anda fluid bed assembly affixed to said bottom portion in a manner whereby said freeboard region is effectively increased without adding additional height to said top portion of said combustion chamber, wherein said fluid bed assembly has a lower region adapted to hold a fluidized fuel bed and an upper region above the fluidized fuel bed, and wherein said freeboard region is effectively increased by at least a height of the upper region.