Fluidized spray tower
First Claim
1. An apparatus for recovering heat from a heat containing gaseous stream, by transfer of said heat into a liquid medium, said apparatus comprising:
- (a) a containment vessel having an interior wall, said vessel extending along a central axis and having(i) a hot gas inlet,(ii) a cooled gas outlet, and(iii) a condensate drain;
(b) intermediate said hot gas inlet and said cooled gas outlet, a contact liquid medium reservoir bottom plate,(c) a first gas passageway, said first gas passageway having (i) a passageway inlet, (ii) a passageway outlet, and (iii) a passageway wall extending from said passageway inlet to said passageway outlet, said first gas passageway sealingly affixed to and upwardly extending from said contact liquid medium reservoir bottom plate a preselected distance to define, from said contact liquid medium reservoir bottom plate to said outlet, a contact liquid medium reservoir space for holding said liquid medium;
(d) a liquid medium outlet, said liquid medium outlet adapted for removing liquid medium from said liquid medium reservoir space;
(e) a liquid medium inlet, said liquid medium inlet located between said outlet end of said first gas passageway and said cooled gas outlet of said vessel;
(f) in fluid communication with said liquid medium inlet, one or more spray nozzles, said spray nozzles adapted to spray said liquid medium downward toward said first gas passageway outlet;
(g) a coalescer, said coalescer located adjacent said cooled gas outlet of said vessel, and adapted to coalesce liquid droplets attempting to escape outward through said hot gas outlet.
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Accused Products
Abstract
A fluidized spray vessel. A vessel design is provided for recovering heat from gaseous heat streams. The vessel utilizes a semi-fluidized bed for obtaining desirable liquid/vapor contact times. A spray section is provided in which liquid is sprayed through nozzles designed to provide a mean droplet size having a terminal velocity of from about sixty percent to about ninety five percent of the superficial upward gas velocity. These spray tower design criteria enhance spray tower performance, and thus enables more efficient heat recovery to be practiced, particularly in systems where relatively low grade heat sources are encountered.
14 Citations
27 Claims
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1. An apparatus for recovering heat from a heat containing gaseous stream, by transfer of said heat into a liquid medium, said apparatus comprising:
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(a) a containment vessel having an interior wall, said vessel extending along a central axis and having (i) a hot gas inlet, (ii) a cooled gas outlet, and (iii) a condensate drain; (b) intermediate said hot gas inlet and said cooled gas outlet, a contact liquid medium reservoir bottom plate, (c) a first gas passageway, said first gas passageway having (i) a passageway inlet, (ii) a passageway outlet, and (iii) a passageway wall extending from said passageway inlet to said passageway outlet, said first gas passageway sealingly affixed to and upwardly extending from said contact liquid medium reservoir bottom plate a preselected distance to define, from said contact liquid medium reservoir bottom plate to said outlet, a contact liquid medium reservoir space for holding said liquid medium; (d) a liquid medium outlet, said liquid medium outlet adapted for removing liquid medium from said liquid medium reservoir space; (e) a liquid medium inlet, said liquid medium inlet located between said outlet end of said first gas passageway and said cooled gas outlet of said vessel; (f) in fluid communication with said liquid medium inlet, one or more spray nozzles, said spray nozzles adapted to spray said liquid medium downward toward said first gas passageway outlet; (g) a coalescer, said coalescer located adjacent said cooled gas outlet of said vessel, and adapted to coalesce liquid droplets attempting to escape outward through said hot gas outlet. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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Specification