Heat exchanger with helical flow paths

Details Heat exchanger with helical flow paths Heat exchanger with helical flow paths

2004-01-29

2009-10-06

Tyler, Cheryl J (Department: 3744)

Heat exchange

Non-communicating coaxial enclosures

Helical conduit means

C165S154000, C165S184000

Reexamination Certificate

active

07597136

ABSTRACT:
A heat exchanger includes a body4on the surface of which are provided helical or spiral paths5which will provide multiple and turbulent flow paths A for a first fluid such as water which is caused to flow through chamber3relative to a spirally wound heat exchange tube6and in a heat transfer relationship with a second fluid flowing through the tube6. The tube6has one or more further helical or spiral flow paths9on its external surface. The multiple flow paths A will extend the residence time for the first fluid within the heat exchanger1and this together with the turbulence will maximise heat transfer. Preferably a portion of the first fluid flow will be through a central aperture in body4where turbulence is also created by the helical or spiral paths of the tube6as it extends through the aperture.

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Derwent Abstract Accession No. 95-262495/34; RU 2027969 C1; (Tark Res Prodn Enterp); Jan. 27, 1995.

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