DE4202588C1 - Multi-bar atmospheric gas burner - has adjacent bars with different outlets giving different combustion characteristics - Google Patents
Multi-bar atmospheric gas burner - has adjacent bars with different outlets giving different combustion characteristicsInfo
- Publication number
- DE4202588C1 DE4202588C1 DE19924202588 DE4202588A DE4202588C1 DE 4202588 C1 DE4202588 C1 DE 4202588C1 DE 19924202588 DE19924202588 DE 19924202588 DE 4202588 A DE4202588 A DE 4202588A DE 4202588 C1 DE4202588 C1 DE 4202588C1
- Authority
- DE
- Germany
- Prior art keywords
- different
- burner
- atmospheric gas
- rods
- gas burner
- 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.)
- Expired - Fee Related
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
- F23D14/04—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner
- F23D14/045—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner with a plurality of burner bars assembled together, e.g. in a grid-like arrangement
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2210/00—Noise abatement
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Gas Burners (AREA)
Abstract
Description
Die Erfindung betrifft einen atmosphärischen Gasbrenner nach dem Oberbegriff des Patentanspruches 1.The invention relates to an atmospheric gas burner according to the preamble of Claim 1.
Ein atmosphärischer Gasbrenner dieser Art ist aus der DE 41 03 325 A1 bekannt. Bei diesem in Zentralheizungskesseln einsetzbaren, vormischenden Gasbrenner tritt das Gas-Luft-Gemisch in die Brennerstäbe ein und verbrennt beim Austritt aus Brennerschlitzen an der Oberfläche der Stäbe. Die Vormischung hat niedrige NOx- und CO-Werte zur Folge.An atmospheric gas burner of this type is known from DE 41 03 325 A1. In this premixing gas burner, which can be used in central heating boilers, the gas-air mixture enters the burner rods and burns on the surface of the rods as they exit from burner slots. The premixing results in low NO x and CO values.
Derartige Brenner werden üblicherweise in modularer Art aufgebaut, d. h. die Anzahl der Brennerstäbe je Brennereinheit ist von der gewünschten Leistung abhängig. Hierbei wird darauf geachtet, daß die Verbrennungsverhältnisse an den einzelnen Brennerstäben möglichst identisch sind. Bei Versuchen mit hochvormischenden atmosphärischen Brennern wurde festgestellt, daß Geräusche auftreten können, die auch durch verschiedene Maßnahmen im Abgasweg nicht zu beseitigen sind. Es ist nur eine Dämpfung dieser Schallschwingungen möglich.Such burners are usually constructed in a modular manner, i. H. the number of Burner rods per burner unit depend on the desired output. Here care is taken that the combustion conditions on the individual Burner rods are as identical as possible. In experiments with high premixing atmospheric burners found that noises can occur, which can also be caused by different Measures in the exhaust gas path cannot be eliminated. It's just a dampening of this Sound vibrations possible.
Die DE-Z "gwf-gas/erdgas" 115 (1974), Heft 2, Seiten 48-54 behandelt sehr ausführlich das Entstehen und die Bekämpfung solcher Schallschwingungen. Dort wird dargelegt, daß es sich als eine Ursache, um ein aerodynamisches Geräusch handelt, das bei allen turbulenten Strömungen vorhanden ist. Es wird festgestellt, daß die Schalleistung wesentlich vom Düsendurchmesser abhängig ist. Schließlich werden Maßnahmen aufgezeigt, welche die Schallschwingungen vermindern können.DE-Z "gwf-gas / erdgas" 115 (1974), No. 2, pages 48-54 deals very much detailed the emergence and control of such sound vibrations. There it is stated that it is as a cause, an aerodynamic noise that at all turbulent flows are present. It is found that the Sound power is largely dependent on the nozzle diameter. Finally be Measures are shown which can reduce the sound vibrations.
Der Erfindung liegt die Aufgabe zugrunde, an einem gattungsmäßen atmosphärischen Gasbrenner die Resonanzneigung zu beseitigen. The invention has for its object on a generic atmospheric gas burners to eliminate the tendency to resonate.
Erfindungsgemäß wird dies durch das im Kennzeichen des Patentanspruches 1 genannte Merkmal erreicht.According to the invention, this is characterized by the characterizing part of patent claim 1 mentioned feature achieved.
Es wird somit mit Absicht darauf geachtet, daß bei benachbarten Brennerstäben ein unterschiedliches Brennverhalten und damit eine unterschiedliche Resonanzneigung vorhanden ist. Durch eine bewußte Verstimmung der einzelnen Brennerstäbe zueinander wird ein unterschiedliches akustischen Verhalten erreicht, welches eine Addition eines identischen Resonanzverhaltens verhindert. Dabei kann sogar die Situation erzielt werden, daß die Schallwellen benachbarter Brennstäbe jeweils um eine halbe Amplitude gegeneinander versetzt sind und sich infolge der Überlagerung aufheben. Sowohl die verhinderte Addition als auch ein gegenseitiges Aufheben der Schallwellen führt zu dem angestrebten Erfolg.Care is therefore taken to ensure that an adjacent burner rod different burning behavior and thus a different tendency to resonate is available. By deliberately detuning the individual burner rods a different acoustic behavior to each other is achieved, which is a Addition of an identical resonance behavior prevented. Even the Situation can be achieved that the sound waves from adjacent fuel rods each around half an amplitude are offset from each other and due to the superposition cancel. Both the prevented addition and the mutual cancellation of the Sound waves lead to the desired success.
In der Praxis wird die unterschiedliche Resonanzneigung der benachbarten Brennerstäbe durch eine Variation der Austrittsöffnungen erreicht. So können Düsen mit gleichem Gemischmassenstrom, jedoch unterschiedlicher Freistrahlform eingesetzt werden. Auch eine unterschiedliche Perforation der Brennfläche ist möglich.In practice, the different resonance tendency of the neighboring Burner rods achieved by varying the outlet openings. So can nozzles with the same mixture mass flow, but different free jet shape be used. There is also a different perforation of the focal surface possible.
Die beigefügte Zeichnung stellt in einer einzigen Figur die Draufsicht auf eine Brennereinheit als Ausführungsbeispiel der Erfindung dar. Mehrere Brennerstäbe 1 sind parallel nebeneinander angeordnet. Der Brennstoff und die Luft treten durch die Mischrohre 2 in die Brennerstäbe 1 ein. Das Gemisch verbrennt beim Austritt aus den Austrittsöffnungen 3, wobei benachbarte Brennerstäbe 1 absichtlich unterschiedlich gestaltete Austrittsöffnungen 3 besitzen. Dabei kann sowohl die Form als auch die Größe der Austrittsöffnungen 3 variieren. Es sind zwei Arten von Brennerstäben 1 jeweils im Wechsel anzuordnen. Wesentlich ist, daß infolge unterschiedlicher Austrittsöffnungen 3 das Brennverhalten und damit die Resonanzneigung unterschiedlich ist. Eine Addition von gleichen Schallschwingungen wird vermieden.The attached drawing shows the plan view of a burner unit as an exemplary embodiment of the invention in a single figure. A plurality of burner rods 1 are arranged in parallel next to one another. The fuel and the air enter the burner rods 1 through the mixing tubes 2 . The mixture burns as it exits the outlet openings 3 , with adjacent burner rods 1 intentionally having differently designed outlet openings 3 . Both the shape and the size of the outlet openings 3 can vary. Two types of burner rods 1 are to be arranged alternately. It is essential that, due to different outlet openings 3, the burning behavior and thus the tendency to resonate is different. An addition of equal sound vibrations is avoided.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19924202588 DE4202588C1 (en) | 1992-01-30 | 1992-01-30 | Multi-bar atmospheric gas burner - has adjacent bars with different outlets giving different combustion characteristics |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19924202588 DE4202588C1 (en) | 1992-01-30 | 1992-01-30 | Multi-bar atmospheric gas burner - has adjacent bars with different outlets giving different combustion characteristics |
Publications (1)
Publication Number | Publication Date |
---|---|
DE4202588C1 true DE4202588C1 (en) | 1993-07-15 |
Family
ID=6450582
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19924202588 Expired - Fee Related DE4202588C1 (en) | 1992-01-30 | 1992-01-30 | Multi-bar atmospheric gas burner - has adjacent bars with different outlets giving different combustion characteristics |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE4202588C1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0650015A1 (en) * | 1993-10-26 | 1995-04-26 | N.V. Nederlandse Gasunie | Burner for gaseous fuel |
WO1998012478A1 (en) * | 1996-09-16 | 1998-03-26 | Siemens Aktiengesellschaft | Method and device for fuel combustion with air |
WO2000009945A1 (en) * | 1998-08-11 | 2000-02-24 | Asea Brown Boveri Ab | Arrangement for reduction of acoustinc vibrations in a combustion chamber |
US7726019B2 (en) | 2008-05-15 | 2010-06-01 | Alstom Technology Ltd. | Method for reducing emissions from a combustor |
US7827777B2 (en) | 2008-05-15 | 2010-11-09 | Alstom Technology Ltd. | Combustor with reduced carbon monoxide emissions |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4103325A1 (en) * | 1990-02-02 | 1991-08-08 | Vaillant Joh Gmbh & Co | Burner system for gaseous mixtures - has outlets in burners spaced further apart at middle part than at ends |
-
1992
- 1992-01-30 DE DE19924202588 patent/DE4202588C1/en not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4103325A1 (en) * | 1990-02-02 | 1991-08-08 | Vaillant Joh Gmbh & Co | Burner system for gaseous mixtures - has outlets in burners spaced further apart at middle part than at ends |
Non-Patent Citations (1)
Title |
---|
DE-Z.: "gwf-gas/erdgas" 115. Jahrg., Heft 2, Febr. 1974, S. 48-54 * |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0650015A1 (en) * | 1993-10-26 | 1995-04-26 | N.V. Nederlandse Gasunie | Burner for gaseous fuel |
NL9301845A (en) * | 1993-10-26 | 1995-05-16 | Nederlandse Gasunie Nv | Gaseous fuel burner. |
WO1998012478A1 (en) * | 1996-09-16 | 1998-03-26 | Siemens Aktiengesellschaft | Method and device for fuel combustion with air |
WO2000009945A1 (en) * | 1998-08-11 | 2000-02-24 | Asea Brown Boveri Ab | Arrangement for reduction of acoustinc vibrations in a combustion chamber |
US7726019B2 (en) | 2008-05-15 | 2010-06-01 | Alstom Technology Ltd. | Method for reducing emissions from a combustor |
US7827777B2 (en) | 2008-05-15 | 2010-11-09 | Alstom Technology Ltd. | Combustor with reduced carbon monoxide emissions |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8100 | Publication of the examined application without publication of unexamined application | ||
D1 | Grant (no unexamined application published) patent law 81 | ||
8363 | Opposition against the patent | ||
8339 | Ceased/non-payment of the annual fee |