Monolithic refractory recuperator

Details Monolithic refractory recuperator Monolithic refractory recuperator

1978-11-13

1985-10-15

Ostrager, Allen M.

Heat exchange

Flow passages for two confined fluids

Interdigitated plural first and plural second fluid passages

165146, F28F 702

Patent

active

045468273

ABSTRACT:
A heat recuperator comprises a monolithic refractory block containing a first array of waste gas passages and a second array of combustion air passage segments oriented perpendicular to the waste gas passages. At least one turnaround manifold interconnects successive combustion air passage segments into multiple-pass passages. Preferably waste gas passages are tapered from a larger area entry aperture to a smaller area exit aperture. Successive combustion air segments are preferably tapered in opposite directions in the refractory block so that they can be interconnected to form a multiple pass passage with a substantially continuous taper from a smaller area initial entry aperture to a larger area exit aperture. The monolithic refractory block containing integral passages can be formed in a single casting or ramming operation.

REFERENCES:
patent: 1571068 (1926-01-01), Stancliffe
patent: 2764398 (1956-09-01), Herman
patent: 2821369 (1958-01-01), Hilliard
patent: 2872165 (1959-02-01), Wennerberg
patent: 3106957 (1963-10-01), Cannon
patent: 3948317 (1976-04-01), Moore
patent: 4156625 (1979-05-01), Wachendorfer

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