Method of making a monolithic refractory recuperator

Details Method of making a monolithic refractory recuperator Method of making a monolithic refractory recuperator

1976-08-27

1979-05-29

Weston, Caleb

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

165147, 165164, 165165, F28F 1308

Patent

active

041566254

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: RE19701 (1935-09-01), Wilson
patent: 659602 (1900-10-01), Bredel
patent: 1571068 (1926-01-01), Stancliffe
patent: 1670127 (1928-05-01), Stancliffe
patent: 2018163 (1935-10-01), Wells
patent: 2092402 (1937-09-01), Morton et al.
patent: 2764398 (1956-09-01), Herman
patent: 2821369 (1958-01-01), Hilliard
patent: 3272260 (1966-09-01), Raub et al.
patent: 3315739 (1967-04-01), Kearney
patent: 3339631 (1967-09-01), McGurty et al.

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