SHELL AND TUBE HEAT EXCHANGER, FINNED TUBES FOR SUCH HEAT EXCHANGER AND CORRESPONDING METHOD
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United States of America Patent
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Issued Date -
Feb 4, 2021
app pub date -
Oct 20, 2020
filing date -
Dec 23, 2015
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Abstract
A shell and tube longitudinal flow heat exchanger comprising a containment casing within which a first fluid can flow substantially parallel to the longitudinal axis of said casing, said containment casing accommodating in its interior a bundle of tubes substantially parallel to one another and parallel to the longitudinal axis of said casing and a plurality of grid-shaped baffles substantially transverse to the longitudinal axis of said casing supporting said tubes, a second fluid flowing in said bundle of tubes. Said tubes are provided on at least a part of their outside surface with a plurality of low fins, which are helically arranged on the outer surface of said tubes with a first angle of advancement a and having a profile interrupted by helical grooves having a second angle of advancement β, with α≠β.
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