Patent ID: 6868807
Filing Date: 2005-03-22
Classification: F02C,F22B

Abstract:
1. A steam generator comprising: a heating gas duct through which heating gas flows in an approximately horizontal direction; a once-through heating area arranged in the heating-gas duct, the once-through heating area comprising a plurality of steam generator tubes connected in parallel with respect to a flow of a flow medium such that a first steam generator tube heated to a greater extent compared with a second steam generator tube in the once-through heating area has a higher rate of flow of the flow medium compared with the second steam generator tube, at least one of the steam generator tubes having an approximately vertically arranged down-corner section, through which the flow medium can flow in a downward direction, and an approximately vertically arranged riser section which is connected to said down-corner section at a location downstream with respect to a flow direction of the flow-medium, the riser section conveying the flow medium in an upward direction.