EP1158247A3 - Apparatus to reduce acoustic vibrations in a combustion chamber - Google Patents

Apparatus to reduce acoustic vibrations in a combustion chamber Download PDF

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Publication number
EP1158247A3
EP1158247A3 EP01110618A EP01110618A EP1158247A3 EP 1158247 A3 EP1158247 A3 EP 1158247A3 EP 01110618 A EP01110618 A EP 01110618A EP 01110618 A EP01110618 A EP 01110618A EP 1158247 A3 EP1158247 A3 EP 1158247A3
Authority
EP
European Patent Office
Prior art keywords
combustion chamber
acoustic vibrations
reduce acoustic
volume
helmholtz resonator
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP01110618A
Other languages
German (de)
French (fr)
Other versions
EP1158247B1 (en
EP1158247A2 (en
Inventor
Christian Oliver Dr. Paschereit
Wolfgang Weisenstein
Peter Dr. Flohr
Wolfgang Dr. Prof. Polifke
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
General Electric Technology GmbH
Original Assignee
Alstom Power NV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Alstom Power NV filed Critical Alstom Power NV
Publication of EP1158247A2 publication Critical patent/EP1158247A2/en
Publication of EP1158247A3 publication Critical patent/EP1158247A3/en
Application granted granted Critical
Publication of EP1158247B1 publication Critical patent/EP1158247B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N1/00—Silencing apparatus characterised by method of silencing
    • F01N1/02—Silencing apparatus characterised by method of silencing by using resonance
    • F01N1/023—Helmholtz resonators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N1/00—Silencing apparatus characterised by method of silencing
    • F01N1/02—Silencing apparatus characterised by method of silencing by using resonance
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
    • F23M20/00—Details of combustion chambers, not otherwise provided for, e.g. means for storing heat from flames
    • F23M20/005—Noise absorbing means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2490/00—Structure, disposition or shape of gas-chambers
    • F01N2490/12—Chambers having variable volumes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2210/00—Noise abatement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23R—GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
    • F23R2900/00—Special features of, or arrangements for continuous combustion chambers; Combustion processes therefor
    • F23R2900/00014—Reducing thermo-acoustic vibrations by passive means, e.g. by Helmholtz resonators

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Vibration Prevention Devices (AREA)

Abstract

Die vorliegende Erfindung betrifft eine Vorrichtung zur Dämpfung akustischer Schwingungen in einer Brennkammer sowie eine entsprechende Brennkammeranordnung mit der Vorrichtung.The present invention relates to a device for damping acoustic vibrations in one Combustion chamber and a corresponding combustion chamber arrangement with the device.

Die Vorrichtung umfasst einen Helmholtz-Resonator (4), der über einen Verbindungskanal (2) mit einer Brennkammer (1) verbunden werden kann. Der Helmholtz-Resonator (4) beinhaltet einen durch Zuführen oder Ablassen eines Fluids über eine Zuleitung (5) im Volumen veränderbaren Hohlkörper (6) oder grenzt derart an diesen an, dass sich das Resonanzvolumen (3) des Helmholtz-Resonators (4) bei einer Änderung des Volumens des Hohlkörpers (6) verändert.

Figure 00000001
The device comprises a Helmholtz resonator (4) which can be connected to a combustion chamber (1) via a connecting channel (2). The Helmholtz resonator (4) contains a hollow body (6) which can be changed in volume by supplying or discharging a fluid via a feed line (5) or adjoins the latter in such a way that the resonance volume (3) of the Helmholtz resonator (4) a change in the volume of the hollow body (6) changed.
Figure 00000001
EP01110618A 2000-05-26 2001-04-30 Apparatus to reduce acoustic vibrations in a combustion chamber Expired - Lifetime EP1158247B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10026121A DE10026121A1 (en) 2000-05-26 2000-05-26 Device for damping acoustic vibrations in a combustion chamber
DE10026121 2000-05-26

Publications (3)

Publication Number Publication Date
EP1158247A2 EP1158247A2 (en) 2001-11-28
EP1158247A3 true EP1158247A3 (en) 2002-01-02
EP1158247B1 EP1158247B1 (en) 2006-04-19

Family

ID=7643661

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01110618A Expired - Lifetime EP1158247B1 (en) 2000-05-26 2001-04-30 Apparatus to reduce acoustic vibrations in a combustion chamber

Country Status (4)

Country Link
US (1) US6634457B2 (en)
EP (1) EP1158247B1 (en)
JP (1) JP4880825B2 (en)
DE (2) DE10026121A1 (en)

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Also Published As

Publication number Publication date
JP4880825B2 (en) 2012-02-22
EP1158247B1 (en) 2006-04-19
US20020000343A1 (en) 2002-01-03
EP1158247A2 (en) 2001-11-28
DE50109527D1 (en) 2006-05-24
DE10026121A1 (en) 2001-11-29
US6634457B2 (en) 2003-10-21
JP2002129982A (en) 2002-05-09

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