In an embodiment of the invention, a heating coil bundle (20) for a tank (10) heating comprising at least one heating coil body and at least one support (40) is disclosed. The bundle (20) is comprised of a plurality of straight tubes (32) and a plurality of U-shaped tubes (34) that are leak-proof serially joined at their open ends and extended in parallel and spaced-apart relationship to each other and arranged in a plurality of levels (24). The bundle (20) cross-section is characterized by a binary-matrix-like tube pattern (22) of M rows (24) and N columns (26). The disclosed heating coil bundle (20) generates a heated fluid (50) large-scale circulation (52) and superimposes said large-scale circulation (52) driven forced convection on a buoyancy driven natural convection, providing a more effective heat transfer mechanism.
B63J 2/14 - HeatingCooling of liquid-freight-carrying tanks
F22D 1/08 - Feed-water heaters, e.g. preheaters with water tubes arranged in the boiler furnace, fire tubes or flue ways the tubes having fins, ribs, gills, corrugations, or the like on their outer surfaces, e.g. in vertical arrangement
F28D 1/04 - Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with the heat-exchange conduits immersed in the body of fluid with tubular conduits
In an embodiment of the invention, a heating coil bundle (20) for a tank (10) heating comprising one heating coil body and three supports (40) is disclosed. The bundle (20) is comprised of a plurality of straight tubes (32) and a plurality of U-shaped tubes (34) that are leak-proof serially joined at their open ends and extended in parallel and spaced-apart relationship to each other and arranged in a plurality of levels (24). The bundle (20) cross-section is characterized by a binary-matrix-like tube pattern (22) of M rows (24) and N columns (26). The disclosed heating coil bundle (20) generates a heated fluid (50) large-scale circulation (52) and superimposes said large-scale circulation (52) driven forced convection on a buoyancy driven natural convection, providing a more effective heat transfer mechanism.
B63J 2/14 - HeatingCooling of liquid-freight-carrying tanks
F22D 1/08 - Feed-water heaters, e.g. preheaters with water tubes arranged in the boiler furnace, fire tubes or flue ways the tubes having fins, ribs, gills, corrugations, or the like on their outer surfaces, e.g. in vertical arrangement
F28D 1/04 - Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with the heat-exchange conduits immersed in the body of fluid with tubular conduits
patents