Vertical tube boiler
OwnerMaurice E. G. Matoninventor
Life of this patent
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Abstract
A vertical tube boiler having a plurality of vertical tubes which extend through a water tank and communicate with a combustion chamber and a chamber provided with a flue outlet, the tank being provided with a transverse plate located above the bottom or firing plate of the tank and provided with holes 20 through which the tubes extend with a clearance gap being provided between the periphery of each hole 20 and the outside of the associated tube, through which gaps water flows upwardly to create upward currents in the water within the tank to hold any scale removed from the outside of the tubes in suspension and if such scale drops to the bottom of the tank, then it accumulates on the plate and not on the firing plate thus preventing burning out of the firing plate.
Claims4
A vertical tube boiler comprising a water tank having an upper wall and a bottom wall, an upper chamber formed above said upper wall and having a flue outlet, a combustion chamber formed beneath said bottom wall, said bottom wall forming the upper wall of said combustion chamber and constituting a firing plate, a secondary plate located in said tank above and vertically spaced from said firing plate, a plurality of vertical tubes, each of said tubes extending from said combustion chamber through said tank to said upper chamber, said tubes extending through holes provided in said secondary plate with a gap being formed between the outside surfaces of said tubes and the periphery of said holes in said secondary plate, and means for supplying water into the space formed between said secondary plate and said firing plate, said water thereby being caused to flow upwardly through said gaps.
Dependencies are inferred from the claim text.