Heat exchanger

Details Heat exchanger Heat exchanger

1986-10-22

1987-09-22

Davis, Jr., Albert W.

Heat exchange

Spur tube projects into enclosure

165160, F28D 712

Patent

active

046948961

ABSTRACT:
A heat exchanger preferably of the type for heating water from hot gases or steam comprises first and second tubes arranged concentrically so as to define a channel inside the first tube, an annular channel between the tubes and a further channel outside the outer tube. The hot gases are arranged to pass inside the inner tube and outside the outer tubes so that water passing through the annular channel is heated from both the inner and outer surfaces. Such an arrangement can be built up into a total heat exchanger by an array of such co-axial tubes arranged side by side or by an array of such co-axial tubes arranged co-axially, that is with further tubes outside the outer tube. Baffles in the form of radial fins cause the fluid to move along an underside of the baffle toward a closed end and then to turn at the closed end back along an upper side of the baffles toward the outlet.

REFERENCES:
patent: 79931 (1868-07-01), Agate
patent: 1355980 (1920-10-01), Jones
patent: 1571889 (1926-02-01), Ripley
patent: 1683236 (1928-09-01), Braun
patent: 1768786 (1930-07-01), Potter
patent: 1848197 (1932-03-01), Ray et al.
patent: 3134432 (1964-05-01), Means
patent: 3749160 (1973-07-01), Vestre
patent: 3776302 (1973-12-01), Waszink et al.
patent: 4147209 (1979-04-01), Persson
patent: 4204573 (1980-05-01), Clark
patent: 4215743 (1980-08-01), Margittai
patent: 4415024 (1983-11-01), Baker
patent: 4548257 (1985-10-01), Williamson

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