Heat exchanger unit for heat recovery steam generator

Heat exchange – Line connected conduit assemblies – In common casing

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Details

165176, 122 7R, 12223515, 12223523, 122476, F28D 706, F22D 104

Patent

active

052479919

ABSTRACT:
A tubular type heat exchanger unit which utilizes upper inlet and outlet headers which are each series connected to at least three lower parallel headers by multiple elongated vertically-oriented tubes. The lower headers are connected together by a plurality of vertically-oriented U-shaped tubes provided in adjacent banks and rows within a thermally-insulated casing. The U-shaped tubes in each tube row are arranged in a staggered pattern relative to the tubes in the adjacent row. Preferably 4-12 lower headers each having a bank of 4-20 vertical tubes are provided. Such heat exchanger unit is enclosed within a thermally-insulated casing and is suitable for use as an economizer and superheater in heat recovery steam generators (HRSG).

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