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    • 7. 发明公开
    • SECTIONAL HEAT EXCHANGER
    • EP3764021A1
    • 2021-01-13
    • EP19185384.5
    • 2019-07-10
    • Bekaert Combustion Technology B.V.
    • VERHOOGT, MathieuHOGENBIRK, Camillo Marino JosefZWIGGELAAR, GertjanHOLDERT, ChristianWESTERS, Raymond
    • F24H1/32F28F21/08F24H9/14
    • A sectional heat exchanger comprises a plurality of aluminum cast segments; means clamping the aluminum cast segments to each other, thereby assembling the plurality of aluminium cast segments vertically side by side; and sealing means between neighbouring aluminum cast segments. The sectional heat exchanger comprises a combustion chamber extending through the plurality of aluminum cast segments. The combustion chamber is configured for the installation of a premix burner. The heat exchanger comprises a plurality of flue gas flow channels extending from the combustion chamber. At least part of the flue gas flow channels are provided between each two neighbouring aluminum cast segments. Each aluminum cast segment comprises at least one fluid flow channel for heating fluid by heat transfer from the flue gas flowing through the flue gas channels. The aluminum cast segments comprise a set of lugs, wherein all lugs of the set of lugs are aligned with each other. The clamping means comprise a bolt and nut connection. The bolt extends through lugs of the set of lugs of only two neighbouring aluminium cast segments. The lugs through which the bolt extends contact each other. The bolt and nut connection presses the two neighbouring aluminum cast segments to each other. The clamping means comprise a tie rod extending through lugs of the set of lugs of at least three of the aluminum cast segments thereby pressing the at least three aluminum cast segments to each other.