Falling film liquor heater having a screen to prevent clogging of a liquid distributing tray
AssigneeRosenblad Corporation
InventorAxel E. Rosenblad
Life of this patent
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Abstract
In a falling film exchanger, a screen arrangement for preventing solid particles in the liquid to be heated from plugging liquid distribution outlets of a perforated liquid distributing tray or reaching the heating surface of the heat exchanger.
Claims8
In a falling film heat exchanger of the type having a heated surface for the indirect exchange of heat beetween a vapor and a liquid which flows as a falling film down said heating surface, and having a liquid distributor with openings for distributing liquid to be heated to the heating surface, a screen between a liquid inlet and said liquid distributor for preventing passage to the distributor of solid particles which could plug the openings of said liquid distributor said screen having sides which slope downwardly and outwardly from an apex positioned beneath said liquid inlet for deflecting such solid particles.
A plate type falling film heat exchanger having a plurality of generally parallel vertical plate heat exchange elements and a liquid distributing tray with perforations arranged above tops of said plate heat exchange elements for providing an even distribution of liquid thereto, and a screen with downwardly and outwardly sloping sides with an apex positioned beneath and pointed toward an inlet for the liquid to prevent plugging of said perforations by screening out solid particles from liquid being fed to said distributing tray.
Dependencies are inferred from the claim text.