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Publication numberEP0933503 A3
Publication typeApplication
Application numberEP19990100914
Publication date17 Nov 1999
Filing date20 Jan 1999
Priority date28 Jan 1998
Also published asDE19803161A1, DE19803161C2, EP0933503A2, US6035964
Publication number1999100914, 99100914, 99100914.3, EP 0933503 A3, EP 0933503A3, EP-A3-0933503, EP0933503 A3, EP0933503A3, EP19990100914, EP99100914
InventorsKurt-Jürgen Lange
ApplicantALSTOM Energy Systems GmbH
Export CitationBiBTeX, EndNote, RefMan
External Links: Espacenet, EP Register
Silencer for a gas turbine exhaust channel
EP 0933503 A3
Abstract  translated from German
Zur Zwischenschaltung zwischen dem Ausgang einer Gasturbine und einen Dampferzeuger ist eine kombinierte Einrichtung vorgesehen, die sowohl als Schalldämpfer als auch als Diffusor wirkt und als Gasturbinenschalldämpfer bezeichnet wird. To be interposed between the output of a gas turbine and a steam generator, a combined device is provided, which is referred to both as a silencer as well as a diffuser and acting as a gas turbine muffler. Der Gasturbinenschalldämpfer weist einen sich in Strömungsrichtung S mit einem relativ großen Winkel erweiternden Innenraum auf. The gas turbine muffler has a in the flow direction S with a relatively large angle widening interior on. In diesem sind Kulissenelemente angeordnet, die zwischeneinander Diffusorkanäle begrenzen, die sich jeweils mit einem wesentlich geringeren spitzen Winkel von unter 7° erweitern. In this backdrop elements are arranged limit between each diffuser channels that extend each having a substantially lower acute angle of less than 7 °. Die engen Diffusorkanäle bewirken neben einer Verlangsamung der Gasströmung und somit neben einer Druckerhöhung zusätzlich eine Schalldämpfung durch Verminderung der Turbulenzen und einer Vergleichmäßigung und Ausrichtung der Strömung. The narrow channels diffuser effect in addition to a deceleration of the gas flow and thus in addition to a pressure increase in addition a sound attenuation by reducing the turbulence and a more uniform and orientation of the flow. Durch die Zusatzfunktion des Gasturbinenschalldämpfers als Diffusor können bisher erforderliche gesonderte Diffusoren, die einen großen Bauraum beansprucht haben, entfallen. By the additional function of the gas turbine muffler as a diffuser can previously required separate diffusers, who claims a large amount of space, omitted.
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Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US3602333 *15 Oct 196931 Aug 1971Chiyoda Chem Eng Construct CoSilencer for suction or discharge of fluids under pressure
US3739872 *27 May 197119 Jun 1973Westinghouse Electric CorpGas turbine exhaust system
US4802821 *21 Sep 19877 Feb 1989Bbc Brown Boveri AgAxial flow turbine
Classifications
International ClassificationF01N5/04, F02C6/18, F01D25/30, F02C6/06
Cooperative ClassificationF01D25/30
European ClassificationF01D25/30
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