Manifold regeneration flues for regenerative furnaces
AssigneePPG Industries, Inc.
InventorYih-Wan Tsai
Life of this patent
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Abstract
In a regenerative furnace of the type used for melting glass, localized overheating of the regenerating regenerator packing is minimized and heating of the regenerator packing is made more uniform by the utilization of a manifold flue. The gas distribution space is in continuous contact with the regenerator packing while the manifold flue is joined to said gas distribution space at a plurality of points below the regenerative packing. Further, flow control dampers may be located in the flue between the regenerative packing and the joining point of the manifold flue and another damper may be in the manifold flue itself to regulate the passage of gas to and from the regenerative packing so that the packing is evenly heated or cooled.
Claims7
In a regenerative furnace of the type comprising a combustion chamber, a pair of regenerator chambers, a plurality of burner ports spaced along the sides of the combustion chamber providing for alternate passage of air and exhaust gases between the combustion chamber and the regenerator chambers;
- each regenerator chamber including an internally unpartitioned, gas pervious bed of refractory material in communication along one side with the ports, and an elongated, unitary gas distributing space in communication with substantially the entire opposite side of the gas pervious bed;
- the improvement comprising:
- a manifold flue in communication with the gas distributing space by way of a plurality of passages spaced apart along the length of the gas distributing space, including a passage near each end of the gas distributing space and at least one passage intermediate the end passages
Dependencies are inferred from the claim text.