Regenerative air preheater for separate preheating of two or mor

Details Regenerative air preheater for separate preheating of two or mor Regenerative air preheater for separate preheating of two or mor

1977-04-25

1978-09-19

Davis, Jr., Albert W.

Heat exchange

Regenerator

165 7, 165 9, F28D 1700

Patent

active

041146808

ABSTRACT:
A stationary-mass rotary regenerative air preheater uses a single regenerative mass for the separately controllable heating of different streams of air. This is achieved by providing at each axial end face of the mass rotating cowls divided into rotationally symmetrical hoods each of which is sub-divided into sector-shaped compartments which have the same radial extent as the mass. A given compartment of one hood on one end face is angularly of the same extent as the corresponding compartment of the other hood on that end face. The compartments are brought to coaxial connecting ducts at the neck of each cowl. Separation of media flows even under temperature or pressure differences is assured by sealing strips at each of the radially extending walls of each hood; these are automatically operated, and those on internal (sub-dividing) walls may be operatively linked to those on external walls.

REFERENCES:
patent: 1858508 (1932-05-01), Kignell et al.
patent: 3203471 (1965-08-01), Koch
patent: 3799242 (1974-03-01), Harris et al.
patent: 4000774 (1977-01-01), Puritz et al.

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