초록 ▼

A rotary steam heated roll of the type having a series of circumferentially spaced, generally parallel and axially extending condensate channels or open-ended steam tubes in the cylindrical outer wall, includes at least one condensate removal pump associated with a channel or steam tube to positivel

A rotary steam heated roll of the type having a series of circumferentially spaced, generally parallel and axially extending condensate channels or open-ended steam tubes in the cylindrical outer wall, includes at least one condensate removal pump associated with a channel or steam tube to positively pump condensate which rims at high speed radially inward to the center of the roll for discharge. A preferred embodiment includes a plurality of small piston pumps driven in response to roll rotation and timed to provide sequential circumferential operation.

대표청구항 ▼

[ I claim:] [1.] A condensate removal apparatus for a steam heated roll rotatable on a generally horizontal axis and having a generally cylindrical outer wall, wherein steam condensate moves radially outward toward interior surface portions of the roll during roll rotation and is directed to a radia

[ I claim:] [1.] A condensate removal apparatus for a steam heated roll rotatable on a generally horizontal axis and having a generally cylindrical outer wall, wherein steam condensate moves radially outward toward interior surface portions of the roll during roll rotation and is directed to a radially outermost one of said surface portions, the roll including outer end walls at each end of the outer wall, said apparatus comprising:at least one condensate collection chamber in fluid communication with said outermost surface portion, at least a part of said collection chamber lying radially outward of said outermost surface portion;a condensate transfer passage providing fluid communication between said collection chamber and a condensate outlet associated with the axis of the roll; and,a pump, located on the roll, for pumping condensate from said collection chamber through said transfer passage to the condensate outlet.