Heater for large flows at low pressure losses

Details Heater for large flows at low pressure losses Heater for large flows at low pressure losses

1975-02-24

1976-06-29

Camby, John J.

Stoves and furnaces

Hot-air furnaces

Compressed air

165 83, 126110AA, F24H 302

Patent

active

039658856

ABSTRACT:
This disclosure teaches a heater which is especially well suited to handling large flows of a process stream at low pressure losses. A cylindrical sleeve, having a first end and a second end, is mounted by means of a bellows in a cylindrical shell having a first end and a second end each corresponding with that of the sleeve. The first ends converge to form a convection input passage therebetween, the second ends diverge to form a radiant zone therebetween. Hot gas passes between the shell and the sleeve through the radiant zone and then the convection input zone, the process stream passes through the inner flow space. A baffle is mounted within the sleeve in its first end to channel the process stream into a convection output passage boardered inwardly by the baffle and outwardly by the sleeve. Extended surface projects from the sleeve into the convection input zone and additional extended surface projects from the sleeve into the convection output passage.

REFERENCES:
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patent: 3547202 (1970-12-01), Ticknor
patent: 3794014 (1974-02-01), McVickar et al.

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