Patent ID: 6880492
Filing Date: 2005-04-19
Classification: C10J,F22B,F27D,F28F,Y02P

Abstract:
1. An apparatus for introducing hot gas into a heating surface tube of a waste heat boiler having a boiler wall, the apparatus comprising: an outer tube connected to the boiler wall, the outer tube having inlet and outlet ends and defining a longitudinal axis of the apparatus; an inner tube disposed within the outer tube, the inner tube having a narrowing inflow section and an outflow section, the inflow section being adapted for receiving the hot gas; a rounded, reversing cap connecting the outflow section of the inner tube to the inlet end of the outer tube; a coolant transport tube disposed between the outer tube and the inner tube and extending toward the reversing cap; and a plurality of connecting ribs connecting the coolant transport tube to the outer tube and the inner tube, the connecting ribs being spaced about a circumference of the coolant transport tube.