Integrated heat exchanger
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United States of America Patent
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Jun 23, 1992
Grant Date -
N/A
app pub date -
Aug 5, 1991
filing date -
Aug 5, 1991
priority date (Note) -
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status (Latency Note)
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Abstract
An integrated, vertical tube heat exchanger for use with a plurality of heat transfer mediums including fluidized solid particulates and hot gaseous products of combustion includes a plurality of vertically extending spaced apart, tubes for containing water/steam flow in close heat transfer relationship with the walls of the tubes. A unitary and compact containment housing is provided around a bank of said vertical tubes for directing a generally lateral flow of fluidized solid particulates moving through a first heat exchange chamber formed around the exterior surface of lower portions of the tubes. A gas plenum chamber is provided adjacent a first end of the lower heat exchange chamber for directing fluidizing gas into the solid particulates in the chamber. The housing is provided with a dividing wall forming a second heat exchange chamber that is separate from and operationally independent of the first heat exchange chamber. The second chamber utilizes hot products of combustion as a heat exchange medium for giving up heat to the vertically upwardly flowing fluid in the bank tubes.
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