Heat exchange apparatus and method of controlling fouling therei

Details Heat exchange apparatus and method of controlling fouling therei Heat exchange apparatus and method of controlling fouling therei

1975-09-23

1977-02-15

Burns, Wendell E.

Heat exchange

Regenerator

Checker brick structure

165 97, 165184, F28F 2702, F28F 114

Patent

active

040077748

ABSTRACT:
An improvement in heat transfer and a reduction in fouling by liquid flowing inside of heat exchanger tubes is achieved by the apparatus and method of the present invention wherein the heat exchanger includes internally ridged or corrugated metal tubes rather than conventional plain tubes. Despite the formation of a normal appearing fouling layer on the downstream portion of a ridge, the ridged tubes remain relatively clear on the upstream portion of the ridge. Periodically, as the downstream portions of the tubing ridge surfaces build up a fouling coating, the flow direction of the tube side fluid is reversed to remove at least a substantial portion of the previously deposited coating.

REFERENCES:
patent: 2460499 (1949-02-01), Grace
patent: 3520354 (1970-07-01), Lawrence
patent: 3779312 (1973-12-01), Withers
patent: 3800867 (1974-04-01), MacKenzie

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