Siemens Aktiengesellschaft

Volker Kefer

Eberhard Wittchow

Joachim Franke

Armin Drosdziok

Franz Reitbacher

Werner Kratzer

In order to obtain a particularly compact steam power plant (1) with a plurality of pressure stages (4a, 4b) mounted on a common turbine shaft (6), a condenser (10) is mounted at the outflow side in the axial direction of the turbine shaft (6) and a feed-water preheater (14) has a modular design. The feed-water preheater (14) has a plurality of heat exchanger modules (20, 22) which are arranged in a common housing (24) and may be heated by steam (A.sub.N, A.sub.H) tapped from one or all pressure stages (4a, 4b). The heat exchanger modules (20, 22) are mounted in series at the feed-water side and in parallel at the tapped steam side.

Steam-turbine plant

A continuous-flow steam generator includes a vertical gas flue for connection to an outlet conduit of an apparatus emitting hot gas, such as a gas turbine. An evaporator heating surface in the vertical gas flue has an inlet header, an outlet header and tubes connected between the inlet and outlet headers. The tubes form an upper tube segment having an upper segment end and a lower segment end as well as a lower tube segment having an upper segment end and a lower segment end. The upper segment end of the upper tube segment merges with the upper segment end of the lower tube segment.

Continuous-flow steam generator

A device for measuring flow rate of a flowing medium in a pipe having a throttling device received therein, and a meter for measuring pressure differential connected to the throttling device, including a measuring device for determining density of the medium being disposed in the flowing medium, the pressure differential meter and the measuring device for determining the density of the medium being connected to an evaluation unit for determining the flow rate from the pressure differential in the flowing medium and the density of the medium, the measuring device for determining the density of the medium being located at a section of the throttling device which has a uniformly smaller diameter than that of the pipe.

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Erlangen, Germany

Volker Kefer