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US 6,951,245 B1Granted
Plate-type heat exchanger comprising a thick fin, and use of such a heat exchanger
AssigneeL'Air Liquide, Societe Anonyme a Directoire et Conseil de Surveillance pour l'Etude et l'Exploitation des Procedes Georges Claude
InventorJean-Yves Lehman
Life of this patent
Estimating the term…
Abstract
A plate-type heat exchanger containing a number of stacked dividing plates of roughly uniform thickness (e), at least one passage, and at least one fin. The minimum thickness (e′) of the fin is 0.8 times greater than the thickness (e) of each dividing plate(s).
Claims9
An air separation apparatus comprising:
- a) at least one column;
- b) at least one heat exchanger which further comprises:
- 1) at least two stacked dividing plates with a roughly uniform thickness (e);
- 2) at least one passage between the plates;
- and
- 3) at least one fin in a first one of the at least one passage wherein the ratio of the minimum thickness (e′) of the each said fin to the thickness of each said dividing plate (e) is greater than about 0.8;
- c) means for sending a liquid containing more than 60% mol. oxygen to the heat exchanger;
- and
- d) means for removing vaporized liquid containing more than 60% mol. oxygen from the heat exchanger.
6 more elements
A process for separating air in a plant including a column and at least one heat exchanger which further comprises:
- a) at least two stacked dividing plates with a roughly uniform thickness (e);
- b) at least one passage between the plates;
- c) at least one fin in a first passage wherein the ratio of the minimum thickness (e′) of the each said fin to the thickness of each said dividing plate (e) is greater than about 0.8 comprising the steps of separating air in the column, sending a;
- liquid containing more than 60% mol. oxygen from the column to the heat exchanger and removing vaporized liquid containing more than 60% mol. oxygen from the heat exchanger.
1 more element
Dependencies are inferred from the claim text.