Steam generator

Details Steam generator Steam generator

2007-09-18

2007-09-18

Wilson, Gregory (Department: 3749)

Liquid heaters and vaporizers

Industrial

Waste heat

C122S258000, C122S00100C

Reexamination Certificate

active

10543602

ABSTRACT:
A stream generator wherein a continuous evaporating heating surface is disposed in a heating gas duct through which a heating gas flows in an approximately horizontal manner. The continuous evaporating heating surface comprises a plurality of steam-generating pipes which are connected in a parallel manner enabling flowthrough of a flow medium, and is configured in such a manner that a steam-generating pipe which is heated more than another stream-generating pipe of the same continuous evaporating heating surface has a higher throughput of a flow medium compared to the other steam-generating pipe. An object is to produce a particularly low-cost steam generator exhibiting particularly high mechanical stability with different thermal loads. The steam-generating pipe respectively comprises a riser pipe piece which can be cross-flown in an upward direction and which is arranged in an approximately vertical manner in relation to the flow medium; a down pipe piece which can be cross-flown in a downward direction downstream from said flow medium side and another riser pipe piece which can be cross-flown in an upward direction by a flow medium and which is arranged in an approximately vertical manner downstream from the latter flow medium side. Preferably, the other riser pipe piece of the respective steam-generating pipe is arranged in the heating gas duct, when seen in the direction of the heating gas, between the riser pipe piece associated therewith and the down pipe piece associated therewith.

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