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US 10,746,469 B2Granted
Regenerators with pressurized cavity in partition walls
AssigneePraxair Technology, Inc.
InventorHisashi Kobayashi
Life of this patent
Estimating the term…
Abstract
A pressurized cavity is provided around at least a portion or all of a regenerator, within which gas such as flue gas is maintained at a pressure in excess of the pressure within the regenerator, to protect against leakage of gas through the walls of the regenerator.
Claims4
A furnace comprising at least a first regenerator and a second regenerator each of which comprises
- (A) a first opening that opens into the furnace,
- (B) a second opening that does not open into the furnace,
- (C) a passageway that extends through the regenerator between the first and second openings and through which a gaseous stream can flow in either direction into one of said openings and out of the other of said openings,
- (D) solid mass which is capable of absorbing heat from a hot gaseous stream passing from the furnace through the passageway and which is capable of transferring heat absorbed by said mass to a gaseous stream passing through the passageway into the furnace,
- (E) a refractory wall surrounding the exterior of the regenerator, and a top surface and a bottom surface which together with the refractory wall and the exterior of the regenerator define an interior void portion that extends from the top surface to the bottom surface, and an inlet through which gas can be fed into said interior void portion from outside the regenerator.
2 more elements
Dependencies are inferred from the claim text.