Robert C Shedd

US Patent:

42287677, Oct 21, 1980

Filed:

Jan 22, 1979

Appl. No.:

6/005072

Inventors:

Willard P. Smith - Spring Lake MI
Harry J. Michaels - Spring Lake MI
Robert W. Shedd - Grand Rapids MI

Assignee:

Johnston Boiler Company - Ferrysburg MI

International Classification:

F22B 102

US Classification:

122 4D

Abstract:

A fluidized bed combustion, unitized transportable fire tube boiler package supported by its framework and housed within an insulated housing that ducts incoming air to preheat it while serving as a noise abutment shield. The water and steam retaining pressure vessel has an upright lower portion tapered divergently upwardly and enclosing a like-configurated, fluidized bed combustion housing spaced therefrom to form a water jacket therebetween. The pressure vessel also has a horizontally elongated upper portion enclosing a plurality of sets of combustion-gas tubes interconnected by flow reversing end members and surrounded by water.