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    • 45. 发明专利
    • INFRA-RED APPARATUS
    • CA1118678A
    • 1982-02-23
    • CA318415
    • 1978-12-21
    • SMITH THOMAS M
    • SMITH THOMAS M
    • F23D13/12
    • Fibrous mat type burner can have mat pieced together with butt joints and very thin layer of resinous sealant uniting the pieces at the joint. Burners with elongated mats are thus readily manufactured, and can be packaged strapped together in pairs face-to-face and enclosed in telescoping carton halves that allow for packaging burners of different lengths. Simple cushioning strips such as of folded corrugated cardboard can be inserted between burner faces, and cushioning pads over outer edges of burner backs, before they are strapped together. Holes can be provided in the cushioning strips to hold them in place over fastener heads projecting from burner face. Burners with hat-shaped mats for enveloping and brazing heat-exchange tubes to tube sheet can be used individually or in pairs to effect such brazing on tube-and-sheet assemblies secured on rotating table and indexed into position under burners. Suction ring around bottom of burner draws off some hot combustion gases generated in burner. Lowerinz and raising of burner over top of tube-and-sheet assembly, as well as of suction head against bottom of tube-and-sheet assembly is conveniently effected using large-diameter suction piping with loose joints that allow pipe rotation to accomodate such movement. The tubes can be staked or expand where they penetrate the tube sheet, to reduce the clearance between them.
    • 46. 发明专利
    • RADIANT HEATING
    • CA1088412A
    • 1980-10-28
    • CA275741
    • 1977-04-06
    • SMITH THOMAS M
    • SMITH THOMAS M
    • F23D14/16F24C3/06F28F9/18F23D13/16
    • Improved gas-fired radiant heater has porous refractory panel mounted by its edges on a support to define a gaseous combustion mixture plenum from which the mixture flows through the panel to burn at its outer face, and a conduit for non-combustible gas extends along the margin of the panel and discharges the non-combustible gas through the panel all along its margin to keep the combustion mixture from escaping through the panel edges where burning can damage the panel and to keep the panel support relatively cool. No further sealing of the panel margin is needed, but the sealing is effected with less of non-combustible gas if the panel edges are compressed so as to reduce their thickness about 10%. One or more of the margins of a rectangular panel can be arranged as a depending flange with its mounting at least partially recessed 90 that two or more panels can be juxtaposed at such margins to form an effectively continuous radiating surface of relatively large size. The air seal construction also makes such heaters very practical for firing house heating furnaces.