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US 7,093,649 B2Granted
Flat heat exchanger plate and bulk material heat exchanger using the same
OwnerPeter Dawsoninventor
Life of this patent
Estimating the term…
Abstract
A flat heat exchanger plate typically used in a bulk material heat exchanger is provided. The flat heat exchanger plate is designed to operate under a negative internal pressure to eliminate depressions or dimples that are typically formed into the sides of these types of heat exchanger coils during the manufacture process. With the removal of the depressions or dimples the tendency for bulk material to accumulate to the exterior surface of the plate is reduced, thereby increasing the service period of the plate.
Claims15
A flat heat exchanger plate comprising:
- a body having two opposing side sheets that are substantially smooth, two opposing longitudinal edges and two opposing transverse edges where the two side sheets are sealed to each other along the borders of the two transverse edges and the two longitudinal edges, defining an open interior space;
- a heat exchange medium inlet nozzle in fluid communication with the open interior space;
- a heat exchange medium exit nozzle in fluid communication with the open interior space
- at least one pressure resistor member positioned within the open interior space with one end thereof attached to the interior surface of one side sheet;
- and
- at least one flow diverter positioned within the open interior space to create a heat exchange medium flow path, wherein said at least one flow diverter is a strip of material having at least one bend and includes at least one hole formed therethrough along the center line thereof, and said at least one pressure resistor member is received by at least one hole to position and retain said flow diverter within the interior space.
3 more elements
A bulk material heat exchanger comprising:
- a plurality of flat heat exchanger plates arranged side-by-side in a spaced relationship, each of said flat heat exchanger plates having a body with two opposing side sheets that are substantially smooth, two opposing longitudinal edges and two opposing transverse edges where the two side sheets are sealed to each other along the borders of the two transverse edges and the two longitudinal edges, defining an open interior space, a heat exchange medium inlet nozzle in fluid communication with the interior space, a heat exchange medium exit nozzle in fluid communication with the open interior space, at least one pressure resistor member positioned within the open interior space with one end thereof attached to the interior surface of one side sheet, and at least one flow diverter positioned within the open interior space to create a heat exchange medium flow path, wherein said at least one flow diverter is a strip of material having at least one bend and includes at least one hole formed therethrough along the center line thereof, and said at least one pressure resistor member is received by at least one hole to position and retain said flow diverter within the interior space;
- a heat exchange medium supply manifold attached to each heat exchange medium inlet nozzle of each flat plate heat exchanger coil, said heat exchange medium supply manifold attached to a heat exchange medium supply system;
- and
- a heat exchange medium return manifold attached to each heat exchange medium exit nozzle of each flat plate heat exchanger coil, said heat exchange medium return manifold attached to a vacuum source so as to draw a quantity of heat exchange medium from the supply thereof through each flat plate heat exchanger coil and return the heat exchange medium back to the heat exchange medium supply system.
1 more element
Dependencies are inferred from the claim text.