Patent ID: 6192837
Filing Date: 2001-02-27
Classification: F22B

Abstract:
A once-through steam generator, comprising:a first gas flue having a containing wall, a combustion chamber, and a plurality of steam generator tubes connected in parallel for conducting a flow medium and each having an outlet side, said plurality of steam generator tubes connected to one another forming a gas-tight evaporator heating surface and forming part of said containing wall;a horizontal gas flue disposed downstream of said first gas flue and having a bottom edge;a second gas flue following said first gas flue on a fuel-gas side by way of said horizontal gas flue;an outlet header, said plurality of steam generator tubes forming said gas-tight evaporator heating surface opening on said outlet side into said outlet header, said outlet header being common to said plurality of steam generator tubes and disposed at a lower height in comparison with said bottom edge of said horizontal gas flue;a bulkhead heating surface directly following said outlet header on a flow-medium side, said bulkhead heating surface disposed in a region of space within said first gas flue above said combustion chamber; anda water/steam separating device following said bulkhead heating surface on the flow-medium side.