Device for producing high heat transfer in heat exchanger tubes

Details Device for producing high heat transfer in heat exchanger tubes Device for producing high heat transfer in heat exchanger tubes

1987-12-02

1989-05-23

Jones, Larry

Heat exchange

With valve or movable deflector for heat exchange fluid flow

With by-pass of heat exchanger or heat exchanger section

1651091, 165 94, 138 38, F28F 1302

Patent

active

048321141

ABSTRACT:
A device to be inserted in heat exchanger tubes to produce high heat transfer in said heat exchanger tubes and, hence, high heat exchanger efficiency. Said device consists of a shaft mounted with a strip and an impeller. The flow of fluid in the heat exchanger tube causes the impeller to rotate, the impeller in turn causes the strip to rotate. The strip has slots and vanes. As the strip rotates, said vanes guide the fluid on and near the inner tube wall to flow through said slots to the central (axial) region of the tube, which promotes the convective heat transfer inside the tube tremendously.

REFERENCES:
patent: 3407871 (1968-10-01), Penny
patent: 3541628 (1970-11-01), Girard
patent: 3693329 (1972-09-01), Willis
patent: 4081875 (1978-04-01), Nishino
patent: 4174750 (1979-11-01), Nichols
patent: 4641705 (1987-02-01), Gorman
patent: 4720884 (1988-01-01), Ralls

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