Helically coiled tube heat exchanger

Details Helically coiled tube heat exchanger Helically coiled tube heat exchanger

1978-09-05

1981-08-18

Marcus, Stephen

Heat exchange

Casing or tank enclosed conduit assembly

Conduit coiled within casing

122 32, 122511, F28D 710

Patent

active

042841348

ABSTRACT:
In a heat exchanger such as a steam generator for a nuclear reactor, two or more bundles of helically coiled tubes are arranged in series with the tubes in each bundle integrally continuing through the tube bundles arranged in series therewith. Pitch values for the tubing in any pair of tube bundles, taken transverse to the path of the reactor coolant flow about the tubes, are selected as a ratio of two unequal integers to permit efficient operation of each tube bundle while maintaining the various tube bundles of the heat exchanger within a compact envelope. Preferably, the helix angle and tube pitch parallel to the path of coolant flow are constant for all tubes in a single bundle so that the tubes are of approximately the same length within each bundle.

REFERENCES:
patent: 3130779 (1964-04-01), Huet
patent: 3882933 (1975-05-01), Kube

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