US 9,291,344 B2Granted

Forced-flow steam generator

AssigneeSiemens Aktiengesellschaft

InventorsJoachim Brodeβer, Jan Brückner, Martin Effert, Joachim Franke, Tobias Schulze

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Abstract

A forced-flow steam generator includes first and second steam generator pipes which form a surrounding wall, wherein the first and second steam generator pipes are welded in a gas-tight fashion and are traversable by flow in a vertical direction. A passage collector is arranged within the surrounding wall, wherein the passage collector connects the first steam generator pipes with the second steam generator pipes. The first steam generator pipes are connected at an outlet side to an inlet side of the second steam generator pipes, wherein the second steam generator pipes are connected in series with the first steam generator pipes. Each of the second generator pipes has a restrictor device. Further, a power plant with a forced-flow steam generator is provided.

Claims8

Dependent claims

A forced-flow steam generator, comprising:

first and second steam generator pipes which form a surrounding wall, wherein the first and second steam generator pipes are welded in a gas-tight fashion and are traversable by flow in a vertical direction,
a passage collector arranged within the surrounding wall,
wherein the passage collector connects the first steam generator pipes with the second steam generator pipes,
wherein the first steam generator pipes are connected at an outlet side to an inlet side of the second steam generator pipes,
wherein the second steam generator pipes are connected in series with the first steam generator pipes, and
wherein the second generator pipes each have a restrictor device,
wherein each restrictor device is arranged at an upper outlet of the surrounding wall, and
wherein each restrictor device is designed as an aperture including a smaller diameter than the second generator pipe.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 13/813,522Filed 15 Jun 2011
Priority: DE 10 2010 038 8834 Aug 2010
Published: US 2013/0205784 A115 Aug 2013
Granted: 22 Mar 2016
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

F22B 29/062
Construction of tube walls: involving vertically-disposed water tubes
F01K 7/16
Steam engine plants characterised by the use of specific types of engine ; Plants or engines characterised by their use of special steam…
F22B 21/34
Water-tube boilers of vertical or steeply-inclined type, i.e. the water-tube sets being arranged vertically or substantially vertically: built-up…
F22B 21/366
Involving an upper drum or headers mounted at the top of the combustion chamber: involving a horizontal drum mounted in the middle of the boiler