Pre-stressed membrane basket cover assembly

Details Pre-stressed membrane basket cover assembly Pre-stressed membrane basket cover assembly

1996-08-27

1997-09-09

Rivell, John

Heat exchange

Regenerator

Movable heat storage mass with enclosure

165 6, 165 4, F23L 1502

Patent

active

056646216

ABSTRACT:
A rotary regenerative air preheater has heat exchange baskets which contain the mass of heat absorbent material commonly comprised of stacked plate-like elements. The heat exchange basket comprises a frame which is open on each end and which is closed on the sides by basket cover assemblies. Each basket cover assembly includes a light gauge membrane which is welded to the interior surface of the basket cover. Shrinkage of the membrane due to the weld imposes a pre-tension on the membrane which resists deformation of the cover assembly by the heat exchange elements.

REFERENCES:
patent: 4561492 (1985-12-01), Bellows
patent: 4739822 (1988-04-01), Mergler
patent: 5119885 (1992-06-01), Johnson

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