Air heater with automatic sealing

Details Air heater with automatic sealing Air heater with automatic sealing

1991-04-29

1991-11-12

Davis, Jr., Albert W.

Heat exchange

Regenerator

165 9, F28D 1704

Patent

active

050639935

ABSTRACT:
A sealing arrangement for a regenerative air heater having a stator with a peripheral flange and hot and cold end hoods mounted for rotation over respective opposite surfaces of the stator, includes a seal frame which is connected to the cold end hood over an expansion joint assembly. A plurality of cast iron seal shoes are connected to the frame and positioned at selected gaps from the stator flange. A wheel rotatably mounted to the frame near each seal shoe rolls against the stator flange to maintain the selected gap while a counter weight on a lever acts to urge the seal shoes toward the flange. The arrangement is automatic in its maintenance of the selected gap.

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Babcock & Wilcox Technical Paper-Br-1384-"Operation and Evaluation of Rothemuhle Regenerative Air Heater Automatic Cold-end Sealing System"-Hart & Huston-Presented to: Association of Rural Electric Generating Cooperatives-Summer Conference-Bismarck, N.D.-Jun. 18-21, 1989-Entire Document.

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