Gas-to-gas heat exchanger

Details Gas-to-gas heat exchanger Gas-to-gas heat exchanger

1981-03-13

1983-02-01

Davis, Jr., Albert W.

Heat exchange

Intermediate fluent heat exchange material receiving and...

Solid fluent heat exchange material

16510418, 16510434, F28D 1300, F28C 316

Patent

active

043710336

ABSTRACT:
A gas-to-gas heat exchanger comprises a chamber through which pass upwardly at least one first tube for the passage of a first hot gaseous medium and at least one second tube for the passage of a second cooler gaseous medium. The first and second tubes are disposed in spaced-apart relationship and a fluidized bed of particulate material, for example sand, is created in the chamber in the spaces around the tubes, the fluidized bed serving as a heat transfer medium from the first tube(s) to the second tube(s). The heat exchanger, which is particularly suitable for preheating air by heat exchange with a hot, dust-laden gas, may comprise a plurality of the chambers disposed one above the other.

REFERENCES:
patent: 3996099 (1976-12-01), Faugeras et al.
patent: 4249594 (1981-02-01), Elkins et al.

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