Plate fin heat exchanger
First Claim
1. A plate fin heat exchanger for boiling a liquid, the heat exchanger having a plurality of stacked spaced plates of fluid impervious material adapted and arranged to be heated in use on the first side and to have a liquid to be vaporized on the second side, the second sides of adjacent plates facing each other, there being located between adjacent second sides at least one fin extending, in use, into the liquid to be vaporized, the fin being a separate item formed separately from the plates, wherein the improvement comprises the fin being of at least two layers at least in part having a small gap therebetween, one at least of the outer layers having a plurality of holes therein.
1 Assignment
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Accused Products
Abstract
A heat exchanger in which liquids are boiled, the heat exchanger being provided with fins in the boiling region, the fins comprising a corrugated layer formed of two sheets, each sheet being apertured, the sheets being in close proximity one to the other such that nucleation of bubbles occurs between the sheets and the bubbles are released by the apertures in the sheets.
35 Citations
16 Claims
- 1. A plate fin heat exchanger for boiling a liquid, the heat exchanger having a plurality of stacked spaced plates of fluid impervious material adapted and arranged to be heated in use on the first side and to have a liquid to be vaporized on the second side, the second sides of adjacent plates facing each other, there being located between adjacent second sides at least one fin extending, in use, into the liquid to be vaporized, the fin being a separate item formed separately from the plates, wherein the improvement comprises the fin being of at least two layers at least in part having a small gap therebetween, one at least of the outer layers having a plurality of holes therein.
Specification