摘要:
Composite tube for heating gases to very high temperatures, in particular for generating steam, comprising at least one internal combustion or heating tube (6), an external reinforcement (3) which surrounds the internal tube (6) and spacer means (2, 5) for separating the internal tube (6) from the external reinforcement, in which the materials of the internal tube (6) are resistant to the milieus of the heating gases coming into contact with this tube. A jacket tube (1) may be placed between the internal combustion or heating tube (6) and the external reinforcement (3). In the composite tube of this invention the heating tube wall thickness can be reduced and higher temperatures and heat flows can be achieved than hitherto possible.
摘要:
Ein Rohrbündelwärmetauscher stehender Bauart weist eine Gaseintrittskammer (15) und eine Gasaustrittskammer (4) auf, die durch Gasdurchgangsrohre (3) verbunden sind. Die Gasdurchgangsrohre (3) sind innerhalb eines Mantelraumes (11) von Kühlmittelrohren (9) umgeben, die jeweils in eine Verbindungskammer (5, 6) münden, die zwischen dem Mantelraum (11), der Gaseintrittskammer (15) und der Gasaustrittskammer (4) gebildet sind. Ein zum Mantelraum (11) hin offenes Durchtrittsrohr (13) verbindet den Mantelraum (11) mit einer Verbindungskammer (5).
摘要:
A double-walled tube includes: a plurality of double-walled tube forming members, each having an inner tube and an outer tube, connected by welding at welding portions of axis direction end portions thereof; and each of the welding portions of the double-walled tube forming members including a groove having a length in an axis direction set to be equal to or greater than 1/2 of a width of a weld bead formed by the welding at the welding portion.