Method of making an enhanced hydraulically expanded heat exchang

Details Method of making an enhanced hydraulically expanded heat exchang Method of making an enhanced hydraulically expanded heat exchang

1991-03-07

1992-08-18

Cuda, Irene

Metal working

Method of mechanical manufacture

Heat exchanger or boiler making

29463, 29890039, 29457, B23P 1526

Patent

active

051387654

ABSTRACT:
A method for manufacturing a ribbed flow channel (38) results in enhancing the heat transfer performance of a hydraulically expanded heat exchanger such as a coiled tube boiler (10). The ribs are machined or rolled into a flat metal sheet (20) prior to forming a cylinder. One cylinder (28) is rolled so that the ribs are located inside the cylinder while the other cylinder (32) is rolled with the ribs located on the outside. Cylinder (32) is positioned inside cylinder (28) and electron beam welded to form a helical weld path (16). A pressure fitting (34) is attached to the welded cylinder (36) and hydraulic pressure (P) is applied to deform the cylinders (28, 32) between the helical weld path thus creating a ribbed flow channel (38).

REFERENCES:
patent: 2982013 (1961-05-01), Adams
patent: 3140532 (1964-07-01), Adams
patent: 3147545 (1964-09-01), Valyi
patent: 3200480 (1965-08-01), Heuer
patent: 3201858 (1965-08-01), Valyi
patent: 3340589 (1967-09-01), Jaeger
patent: 3831246 (1974-08-01), Morris
patent: 4231423 (1980-11-01), Haslett
patent: 4295255 (1981-10-01), Weber
Watson, G. B. et al., "Critical Heat Flux in Inclined and Vertical Smooth and Ribbed Tubes", 5th International Heat Transfer Conference, Kyoto, Japan, Sep. 3-7, 1974.
R & D Proposal 88-233, prepared for Defense Advanced Research Projects Agency (DARPA), Sep. 20, 1988.
Purchase Order WPP52002--Navel Underwater Systems.

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