DE102005052881A1 - Heating device e.g. oil-heated heating device, has helmholtz-resonator connected to opening as noise damping device and having resonator chamber formed with controller to change acoustic mass and/or volume of resonator chamber - Google Patents
Heating device e.g. oil-heated heating device, has helmholtz-resonator connected to opening as noise damping device and having resonator chamber formed with controller to change acoustic mass and/or volume of resonator chamber Download PDFInfo
- Publication number
- DE102005052881A1 DE102005052881A1 DE200510052881 DE102005052881A DE102005052881A1 DE 102005052881 A1 DE102005052881 A1 DE 102005052881A1 DE 200510052881 DE200510052881 DE 200510052881 DE 102005052881 A DE102005052881 A DE 102005052881A DE 102005052881 A1 DE102005052881 A1 DE 102005052881A1
- Authority
- DE
- Germany
- Prior art keywords
- resonator
- volume
- combustion chamber
- flow channel
- temperature
- 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.)
- Withdrawn
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
- 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
- F01N1/16—Silencing apparatus characterised by method of silencing by using movable parts
- F01N1/22—Silencing apparatus characterised by method of silencing by using movable parts the parts being resilient walls
-
- 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
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/172—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using resonance effects
-
- 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
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/16—Selection of particular materials
-
- 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)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Details Of Fluid Heaters (AREA)
Abstract
Description
Die Erfindung betrifft ein Heizgerät mit einer Schalldämpfungseinrichtung nach dem Oberbegriff des Anspruchs 1.The The invention relates to a heater with a sound damping device according to the preamble of claim 1.
An
gas- oder ölbeheizten
Heizgeräten
treten Geräusche
auf, die von den bei der Verbrennung auftretenden Flammen erzeugten
Brennkammerschwingungen her rühren.
Die Wechselwirkung der Brennkammern mit verschiedenen Luftansaug-
bzw. Gemischansaugsystemen und Abgassystemen erschwert eine Abstimmung
des Gesamtsystems und dadurch eine Unterdrückung derartiger Brennkammerschwingungen.
Bekannt ist, in akustischen Systemen mittels Helmholtz-Resonatoren
das Auftreten von Schwingungen, insbesondere Resonanzschwingungen
zu unterdrücken.
Da Helmholtz-Resonatoren
nur bei spezifischen Frequenzen wirksam sind, werden zur Erweiterung
des wirksamen Frequenzbands beispielsweise mehrere Helmholtz-Resonatoren
eingesetzt. Durch die Kombination und Überlappung der Frequenzbereiche
lässt sich
dadurch ein breitbandiger Helmholtz-Resonator realisieren. Derartige Helmholtz-Resonatoren
erfordern jedoch ein großes Volumina,
die meist nur in großen
Verbrennungsanlagen bzw. Heizgeräten
installiert werden können.
Eine derartige Schalldämpfungseinrichtung
für ein
Heizgerät
ist beispielsweise aus
Aus
Der vorliegenden Erfindung liegt die Aufgabe zugrunde, eine Schalldämpfungseinrichtung für ein Heizgerät zu schaffen, die sich Änderungen der Schwingungsfrequenz in der Brennkammer anpasst, sodass die Brennkammerschwingungen effektiv und optimal unterdrückt werden können.Of the The present invention is based on the object, a sound damping device to create for a heater the changes the vibration frequency in the combustion chamber adapts, so that the combustion chamber vibrations effectively and optimally suppressed can be.
Offenbarung der Erfindungepiphany the invention
Die Aufgabe der Erfindung wird mit den kennzeichnenden Merkmalen des Anspruchs 1 gelöst. Das Heizgerät mit der erfindungsgemäßen Schalldämpfungseinrichtung hat den Vorteil, dass mit einfachen Mitteln eine Frequenzanpassung des Helmholtz-Resonators möglich ist, wobei dies durch eine Änderung der akustischen Masse und/oder des temperaturabhängigen Volumens des Resonatorraums erzielt wird.The The object of the invention is with the characterizing features of Claim 1 solved. The heater with the sound damping device according to the invention has the advantage that with simple means a frequency adjustment the Helmholtz resonator possible is, by changing it the acoustic mass and / or the temperature-dependent volume of the Resonatorraums is achieved.
Vorteilhafte Weiterbildungen der Erfindung sind durch die Maßnahmen der Unteransprüche möglich.advantageous Further developments of the invention are possible by the measures of the subclaims.
Die Arbeitsfrequenz des Helmholtz-Resonators hängt von dem Puffervolumen sowie von der akustischen Masse der schwingenden Gassäule im Eingangskanal bzw. Flaschenhals zum Resonatorraum des Helmholtz-Resonators ab. Vorteilhafterweise werden die Brennkammerschwingungen mittels eines Schallaufnehmers am Strömungskanal aufgenommen und einem Regler zugeführt. Mittels des Reglers wird anhand der aufgenommenen Brennkammerschwingungen die Änderung der akustischen Masse und/oder des temperaturabhängigen Volumens des Resonatorraums vorgenommen.The Working frequency of the Helmholtz resonator depends on the buffer volume as well from the acoustic mass of the vibrating gas column in the inlet channel or bottleneck to the resonator cavity of the Helmholtz resonator. advantageously, become the combustion chamber vibrations by means of a Schallaufnehmers at the flow channel recorded and fed to a controller. By means of the regulator will based on the recorded combustion chamber vibrations the change the acoustic mass and / or the temperature-dependent volume of the Resonatorraums performed.
Eine vorteilhafte Ausführungsform zur Änderung der akustischen Masse wird durch eine Änderung der Temperatur des Gasvolumens im Resonatorraum erzielt. Dazu werden die Brennkammerschwingungen mittels des Schallaufnehmers aufgenommen und mittels des zwischengeschalteten Reglers wird die Temperatur des Gasvolumens im Resonatorraum des Helmholtz-Resonators verändert. Dadurch wird die Arbeitsfrequenz des Helmholtz-Resonators an die Brennkammerschwingung angepasst. Die Erhöhung der Temperatur im Resonatorraum des Helmholtz-Resonators wird zweckmäßiger Weise durch eine Heizeinrichtung realisiert, die um den Eingangskanal an der Öffnung des Resonatorraums angeordnet ist.A advantageous embodiment to change The acoustic mass is due to a change in the temperature of the Gas volume achieved in the resonator. These are the combustion chamber vibrations recorded by means of the sound pickup and by means of the intermediate Regulator is the temperature of the gas volume in the resonator of the Helmholtz resonator changed. As a result, the operating frequency of the Helmholtz resonator to the combustion chamber oscillation customized. The increase the temperature in the resonator cavity of the Helmholtz resonator is suitably through realized a heating device, which surrounds the input channel at the opening of the Resonatorraums is arranged.
Eine Ausführungsform zur Frequenzanpassung durch Änderung des temperaturabhängigen Volumens wird erzielt, indem die Frequenzanpassung durch die Änderung der Gasfederkonstante im Resonatorraum realisiert wird. Dazu wird das Volumen des Resonatorraums verändert, indem mindestens eine veränderbare Wandung oder mindestens ein veränderbarer Wandabschnitt am Resonatorraum eingesetzt wird, die bzw. der beispielsweise durch ein temperaturabhängiges Bimetallmaterial oder ein temperaturabhängiges Formgedächtnismaterial realisiert werden kann. Dabei werden ebenfalls mittels des Schallaufnehmers die Brennkammerschwingungen im Strömungskanal aufgenommen. Durch einen zwischengeschalteten Regler wird beispielsweise die Temperatur der Wandung oder des Wandabschnitts des Resonatorraums des Helmholtz-Resonators verändert, um so die Arbeitsfrequenz des Helmholtz-Resonators an die Brennkammerschwingung anzupassen.An embodiment for frequency matching by changing the temperature-dependent volume is achieved by the frequency adjustment is realized by the change of the gas spring constant in the resonator chamber. For this purpose, the volume of the resonator chamber is changed by using at least one variable wall or at least one variable wall section on the resonator chamber, which can be realized for example by a temperature-dependent bimetallic material or a temperature-dependent shape memory material. In this case, the combustion chamber vibrations are also recorded in the flow channel by means of the Schallaufnehmers. By an intermediate controller, for example, the temperature of the wall or the wall portion of the resonator cavity of the Helmholtz resonator is changed so as to increase the operating frequency of the Helmholtz-Re sonators to match the combustion chamber vibration.
Zwei Ausführungsbeispiele der Erfindung sind in der Zeichnung dargestellt und in der nachfolgenden Beschreibung näher erläutert.Two embodiments The invention are illustrated in the drawing and in the following Description closer explained.
Es zeigen:It demonstrate:
Beim
Ausführungsbeispiel
gemäß
Beim
zweiten Ausführungsbeispiel
gemäß
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200510052881 DE102005052881A1 (en) | 2005-11-07 | 2005-11-07 | Heating device e.g. oil-heated heating device, has helmholtz-resonator connected to opening as noise damping device and having resonator chamber formed with controller to change acoustic mass and/or volume of resonator chamber |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200510052881 DE102005052881A1 (en) | 2005-11-07 | 2005-11-07 | Heating device e.g. oil-heated heating device, has helmholtz-resonator connected to opening as noise damping device and having resonator chamber formed with controller to change acoustic mass and/or volume of resonator chamber |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102005052881A1 true DE102005052881A1 (en) | 2007-05-10 |
Family
ID=37949861
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200510052881 Withdrawn DE102005052881A1 (en) | 2005-11-07 | 2005-11-07 | Heating device e.g. oil-heated heating device, has helmholtz-resonator connected to opening as noise damping device and having resonator chamber formed with controller to change acoustic mass and/or volume of resonator chamber |
Country Status (1)
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DE (1) | DE102005052881A1 (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008007967A1 (en) * | 2008-02-07 | 2009-08-13 | J. Eberspächer GmbH & Co. KG | Fuel-operated vehicle heater for use as e.g. auxiliary heating system, has resonator-sound damping arrangement with resonator volume, which is open to flow path between supply blower and exhaust delivery area by connection opening area |
DE102008009957A1 (en) * | 2008-02-20 | 2009-08-27 | J. Eberspächer GmbH & Co. KG | Exhaust gas routing system for fuel actuating vehicle heating device, has resonator sound damping arrangement with exhaust gas leading to internal pipe section, and internal pipe section surrounds external pipe section |
EP2378199A1 (en) | 2010-04-13 | 2011-10-19 | Siemens Aktiengesellschaft | Resonator device for damping the pressure oscillation within a combustion chamber and a method for operating a combustion arrangement |
US8869836B2 (en) | 2011-05-27 | 2014-10-28 | Rolls-Royce Plc | Hydraulic damping apparatus |
DE202015106318U1 (en) * | 2015-11-19 | 2016-11-24 | Viessmann Werke Gmbh & Co Kg | heater |
DE102015222587A1 (en) * | 2015-11-16 | 2017-05-18 | Vaillant Gmbh | Adaptive vibration damper |
EP3182008A1 (en) * | 2015-12-18 | 2017-06-21 | Ansaldo Energia IP UK Limited | Helmholtz damper for a gas turbine and gas turbine with such helmholtz damper |
DE102019109128A1 (en) * | 2019-04-08 | 2020-10-08 | Homag Gmbh | Device and method for coating workpieces |
-
2005
- 2005-11-07 DE DE200510052881 patent/DE102005052881A1/en not_active Withdrawn
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008007967B4 (en) | 2008-02-07 | 2022-11-10 | Eberspächer Climate Control Systems GmbH | Fuel-operated vehicle heater and exhaust system for a fuel-operated vehicle heater |
DE102008007967A1 (en) * | 2008-02-07 | 2009-08-13 | J. Eberspächer GmbH & Co. KG | Fuel-operated vehicle heater for use as e.g. auxiliary heating system, has resonator-sound damping arrangement with resonator volume, which is open to flow path between supply blower and exhaust delivery area by connection opening area |
DE102008009957B4 (en) | 2008-02-20 | 2021-12-09 | Eberspächer Climate Control Systems GmbH | Exhaust system for a fuel-operated vehicle heater |
DE102008009957A1 (en) * | 2008-02-20 | 2009-08-27 | J. Eberspächer GmbH & Co. KG | Exhaust gas routing system for fuel actuating vehicle heating device, has resonator sound damping arrangement with exhaust gas leading to internal pipe section, and internal pipe section surrounds external pipe section |
CN102822601B (en) * | 2010-04-13 | 2014-11-12 | 西门子公司 | Resonator device for damping the pressure oscillation within a combustion chamber and a method for operating a combustion arrangement |
CN102822601A (en) * | 2010-04-13 | 2012-12-12 | 西门子公司 | Resonator device for damping the pressure oscillation within a combustion chamber and a method for operating a combustion arrangement |
US9279586B2 (en) | 2010-04-13 | 2016-03-08 | Siemens Aktiengesellschaft | Resonator device for damping the pressure oscillation within a combustion chamber and a method for operating a combustion arrangement |
WO2011128158A1 (en) | 2010-04-13 | 2011-10-20 | Siemens Aktiengesellschaft | Resonator device for damping the pressure oscillation within a combustion chamber and a method for operating a combustion arrangement |
EP2378199A1 (en) | 2010-04-13 | 2011-10-19 | Siemens Aktiengesellschaft | Resonator device for damping the pressure oscillation within a combustion chamber and a method for operating a combustion arrangement |
US8869836B2 (en) | 2011-05-27 | 2014-10-28 | Rolls-Royce Plc | Hydraulic damping apparatus |
DE102015222587A1 (en) * | 2015-11-16 | 2017-05-18 | Vaillant Gmbh | Adaptive vibration damper |
CN106705037A (en) * | 2015-11-16 | 2017-05-24 | 威能有限公司 | Combustion system with adaptive Helmholtz resonator and method for operating combustion system |
EP3173698A1 (en) * | 2015-11-16 | 2017-05-31 | Vaillant GmbH | Adaptive vibration damper |
CN106705037B (en) * | 2015-11-16 | 2020-01-17 | 威能有限公司 | Combustion system with adaptive Helmholtz resonator and method of operating the same |
DE202015106318U1 (en) * | 2015-11-19 | 2016-11-24 | Viessmann Werke Gmbh & Co Kg | heater |
EP3182008A1 (en) * | 2015-12-18 | 2017-06-21 | Ansaldo Energia IP UK Limited | Helmholtz damper for a gas turbine and gas turbine with such helmholtz damper |
DE102019109128A1 (en) * | 2019-04-08 | 2020-10-08 | Homag Gmbh | Device and method for coating workpieces |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R005 | Application deemed withdrawn due to failure to request examination |
Effective date: 20121108 |