EP0617231B1 - Verfahren zum Betrieb eines Ölverdampfungsbrenners und Ölverdampfungsbrenner - Google Patents
Verfahren zum Betrieb eines Ölverdampfungsbrenners und Ölverdampfungsbrenner Download PDFInfo
- Publication number
- EP0617231B1 EP0617231B1 EP94103983A EP94103983A EP0617231B1 EP 0617231 B1 EP0617231 B1 EP 0617231B1 EP 94103983 A EP94103983 A EP 94103983A EP 94103983 A EP94103983 A EP 94103983A EP 0617231 B1 EP0617231 B1 EP 0617231B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- burner
- air
- air supply
- injectors
- oil
- 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 - Lifetime
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C9/00—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber
- F23C9/006—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber the recirculation taking place in the combustion chamber
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C7/00—Combustion apparatus characterised by arrangements for air supply
- F23C7/002—Combustion apparatus characterised by arrangements for air supply the air being submitted to a rotary or spinning motion
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D11/00—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
- F23D11/36—Details, e.g. burner cooling means, noise reduction means
- F23D11/40—Mixing tubes or chambers; Burner heads
- F23D11/402—Mixing chambers downstream of the nozzle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C2202/00—Fluegas recirculation
- F23C2202/30—Premixing fluegas with combustion air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C2900/00—Special features of, or arrangements for combustion apparatus using fluid fuels or solid fuels suspended in air; Combustion processes therefor
- F23C2900/06041—Staged supply of oxidant
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C2900/00—Special features of, or arrangements for combustion apparatus using fluid fuels or solid fuels suspended in air; Combustion processes therefor
- F23C2900/07002—Premix burners with air inlet slots obtained between offset curved wall surfaces, e.g. double cone burners
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C2900/00—Special features of, or arrangements for combustion apparatus using fluid fuels or solid fuels suspended in air; Combustion processes therefor
- F23C2900/09002—Specific devices inducing or forcing flue gas recirculation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C2900/00—Special features of, or arrangements for combustion apparatus using fluid fuels or solid fuels suspended in air; Combustion processes therefor
- F23C2900/99006—Arrangements for starting combustion
Definitions
- the invention relates to a method for operating a Oil evaporation burner, under the pressure supply of combustion air and with the addition of recycled into the burner Exhaust gases of the injected liquid fuel in an outflow direction divergent swirl flow further resolved becomes.
- the invention further relates to an oil vapor burner to carry out the procedure.
- Such a method is known from EP-A-0 436 113 and also a suitable burner, which essentially consists of there is a housing on which the oil supply nozzle assembly is centered with this surrounding supply opening for the introduction of combustion air is arranged in a combustion chamber side in Housing arranged swirl pot diverging in the outflow direction is directed, on which exhaust gas intake ducts are arranged, those directed tangentially into the swirl pot Injectors for the introduction of recirculated exhaust gases into the Open the swirl pot.
- the associated Burners can also reduce the pollutant emissions values during combustion liquid fuels can be minimized. It has however, in the practical implementation of the method shown that in the start-up phase of the burner, if no operating temperatures yet prevail in the combustion chamber and on the burner, this often goes out after ignition and only difficult to bring to permanent operation.
- the invention is accordingly based on the object at the outset mentioned method and the associated burner improve that the starting difficulties mentioned no longer occur.
- This object is achieved with respect to the method in that the return and introduction of the exhaust gases into the burner first after passing through the burner start-up phase and thereby Return of exhaust gases during the start-up phase by pneumatic generated barrier curtains from air is prevented.
- a regulation or throttling of recirculated exhaust gas quantities is admittedly known from DE-A-24 61 078, but this is only about an influence on the flame temperature for the purpose of NOX reduction and not about the problem of maintaining the Burning process during the start-up phase, and on the other hand here the throttling of the returned and even more or less hot exhaust gases directly through a sleeve-like, mechanically operated slide causes.
- the ones to be returned Exhaust gases are only from Flue gas extraction from the boiler is removed and outside the boiler through a return line to the burner.
- the burner consists of a housing 1 on which the Oil supply line 2 is arranged with the nozzle D.
- the air for the combustion of the atomized by the nozzle D, ie quasi-evaporated oil is supplied through the opening 2 'in which coaxially extends the oil supply 2.
- the nozzle D is directed into a conical funnel 3 which is open at the top and bottom and has two regions in the form of injectors 5, ie these injectors 5 are arranged in the wall 3 ′ of the funnel 3.
- the entire part A of the burner protrudes into the combustion chamber K (see FIG. 3) of the boiler HK, which is only indicated.
- the funnel 3 is located in a shaft 4 of the housing 1 which is open on two sides. This shaft 4 is delimited by two air supply chambers 6, the inner walls 7 of which are aligned with the exhaust gas inflow openings 5 'of the two injectors 5 Air outflow openings 8 are provided.
- Correspondingly inclined tubes 9 are arranged on the two injectors 5 and are connected to the bottom 10 of the shaft 4 which (see FIG.
- the air flowing out of the air outflow openings 8 at high speed and flowing into the exhaust gas inflow openings 5 'of the injectors 5 creates a negative pressure at the exhaust gas inflow openings 5', through which a part of the gases formed in the combustion chamber K into the shaft 4 of the burner and thus into the injectors 5 are sucked in, ie a mixture of air and exhaust gas flows from the injectors 5 into the funnel 3 and there forms a swirl flow surrounding the oil mist formed and burning by the nozzle D, which mixes with the flame and reduces the flame temperature. This applies to continuous operation.
- injectors 5 as shown at the top left in FIG. 2, are open on both sides, so are on both sides of the injector 5 tubes 9 arranged. If the injectors 5, however, how shown below right, are only open on one side, which also is possible, only one tube 9 is arranged.
- the duration of the burner start-up phase predetermined period then switches the timer 18 of the fan 16 from. If a thermal sensor 19 is provided, this is caused by the thermal sensor 19 when there are normal operating temperatures in the combustion chamber K and on the burner to have.
- the air supply line 13 (see also Fig. 3) provided with a valve 20 which during the start-up phase of the burner is open, so that by this air supply line 13 air into the air chamber 11 and so that can get into the tube 9.
- a valve 20 which changes outside Temperature ranges of the burner is also appropriate Fig. 4 with a timer 18 or a thermal sensor 19 connected and is at the end of these elements Start-up phase closed.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combustion Of Fluid Fuel (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Description
- Fig. 1
- perspektivisch den Ölverdampfungsbrenner;
- Fig. 2
- einen Schnitt durch den Brenner längs Schnittebene II-II in Fig. 1;
- Fig. 3
- schematisiert einen Schnitt durch den Brenner längs Linie III-III in Fig. 2;
- Fig. 4
- schematisch und im Schnitt eine Ausführungsform des Brenners mit der Luftführung für die Erzeugung der Sperrvorhänge und
- Fig. 5
- entsprechend Fig. 4 eine weitere Ausführungsform.
Die aus den Luftausströmöffnungen 8 mit hoher Geschwindigkeit ausströmende und in die Abgaszuströmöffnungen 5' der Injektoren 5 einströmende Luft läßt an den Abgaszuströmöffnungen 5' einen Unterdruck entstehen, durch den ein Teil der in der Brennkammer K entstehenden Gase in den Schacht 4 des Brenners und damit in die Injektoren 5 eingesaugt wird, d.h. aus den Injektoren 5 strömt ein Gemisch aus Luft und Abgas in den Trichter 3 ein und bildet dort eine den von der Düse D gebildeten und brennenden Ölnebel umgebende Drallströmung, die sich mit der Flamme vermischt und die Flammentemperatur reduziert. Dies gilt für den Dauerbetrieb.
- 1
- Gehäuse
- 2
- Ölzufuhrleitung
- 2'
- Öffnung
- 3
- konischer Trichter
- 4
- Schacht
- 5
- Injektor
- 5'
- Einströmöffnung
- 6
- Luftkammer
- 7
- Innenwände
- 8
- Luftaustrittsöffnungen
- 9
- Röhrchen
- 10
- Boden
- 11
- Luftkammer
- 12
- Durchgriffskanal
- 13
- Luftzufuhrleitung
- 14
- Öffnungen
- 15
- Sperrvorhang
- 16
- Gebläse
- 16'
- Antrieb
- 17
- Brennergebläse
- 18
- Zeitschaltuhr
- 19
- Thermosensor
- 20
- Ventil
- 20'
- Stellantrieb
- D
- Düse
- K
- Brennkammer
Claims (8)
- Verfahren zum Betrieb eines Ölverdampfungsbrenners, bei dem unter Druckzufuhr von Verbrennungsluft und unter Beimischung von in den Brenner rückgeführter Abgase der eingedüste flüssige Brennstoff in einer in Ausströmrichtung divergierenden Drallströmung weiter aufgelöst wird,
dadurch gekennzeichnet,
daß die Rückführung und Einleitung der Abgase in die Drallströmung erst nach Durchfahren der Brenneranlaufphase bewirkt und dabei die Zufuhr der rückgeführten Abgase während der Anlaufphase durch pneumatisch erzeugte Sperrvorhänge aus Luft unterbunden wird. - Ölverdampfungsbrenner zur Durchführung des Verfahrens nach Anspruch 1, bestehend aus einem Gehäuse (1) mit einem Trichter (3) zur Ausbildung einer Drallströmung, wobei am Trichter (3) Injektoren (5) für die Einleitung der Verbrennungsluft und die Ansaugung von Abgasen aus der Brennkammer (K) angeordnet und eine Ölzufuhrleitung (2) mit Düse (D) in den Trichter (3) gerichtet ist und wobei ferner vor den Injektoren (5) eine Luftzufuhrkammer (6) mit in die Injektoren (5) gerichteten Luftausströmöffnungen (8) angeordnet sind,
dadurch gekennzeichnet,
daß an den Injektoren (5) ein Luftzufuhrkanal, zum Beispiel ein Röhrchen (9) mit quer in eine von der Wand (3) des Injektors (5) und der Wand (7) der Luftzufuhrkammer (6) begrenzte Abgaszuströmöffnung (5') gerichteten Öffnungen (14) angeordnet und der Luftzufuhrkanal mit Mitteln zur gesteuerten Unterbrechung der Luftzufuhr am Ende der Anlaufphase des Brenners versehen ist. - Ölverdampfungsbrenner nach Anspruch 2,
dadurch gekennzeichnet,
daß am Trichter (3) sich diagonal gegenüberstehend zwei Injektoren (5) mit jeweils mindestens einem Röhrchen (9) angeordnet sind und jedem Injektor (5) eine Luftzufuhrkammer (6) mit Luftausströmöffnungen (8) zugeordnet ist, welche Luftkammern (6) einen nach zwei Seiten offenen Schacht (4) im Gehäuse (1) begrenzen. - Ölverdampfungsbrenner nach Anspruch 3,
dadurch gekennzeichnet,
daß die Injektoren (5) nach beiden Seiten zum Schacht (4) hin offen sind und beidseitig an jeder Abgaszuströmöffnung (5') der Injektoren (5) je ein Röhrchen (9) angeordnet ist. - Ölverdampfungsbrenner nach Anspruch 3,
dadurch gekennzeichnet,
daß die Injektoren (5) nach einer Seite zum Schacht (4) hin offen sind und an den Abgaszuströmöffnungen der Injektoren (5) ein Röhrchen (9) angeordnet ist. - Ölverdampfungsbrenner nach einem der Ansprüche 3 bis 5,
dadurch gekennzeichnet,
daß die Röhrchen (9) an einer den Boden (10) des Schachtes (4) bildenden Luftzufuhrkammer (6) angeschlossen sind, an welche Luftzufuhrkammer (6) eine Luftzufuhrleitung (13) angeschlossen ist und welche Luftzufuhrkammer (6) mit einem zentrischen Durchgriffskanal (12) für die Ölzufuhrleitung (2) versehen ist. - Ölverdampfungsbrenner nach einem der Ansprüche 2 bis 6,
dadurch gekennzeichnet,
daß die Luftzufuhrleitung (13) für das mindestens eine Röhrchen (9) mit einem separaten Gebläse (16) versehen ist, dessen Antrieb (16') mit einer Zeitschaltuhr (18) oder einem Thermosensor (19) in Schaltverbindung steht. - Ölverdampfungsbrenner nach einem der Ansprüche 2 bis 6,
dadurch gekennzeichnet,
daß die Luftzufuhrleitung (13) für das mindestens eine Röhrchen (9) mit dem Brennergebläse (17) für die Verbrennungsluftzufuhr des Brenners in Verbindung steht und die Luftzufuhrleitung (13) mit einem Ventil (20) versehen ist, dessen Stellantrieb (20') mit einer Zeitschaltuhr (18) oder einem Thermosensor (19) in Schaltverbindung steht.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4309115A DE4309115A1 (de) | 1993-03-23 | 1993-03-23 | Verfahren zum Betrieb eines Ölverdampfungsbrenners |
DE4309115 | 1993-03-23 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0617231A1 EP0617231A1 (de) | 1994-09-28 |
EP0617231B1 true EP0617231B1 (de) | 1998-11-04 |
Family
ID=6483439
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94103983A Expired - Lifetime EP0617231B1 (de) | 1993-03-23 | 1994-03-15 | Verfahren zum Betrieb eines Ölverdampfungsbrenners und Ölverdampfungsbrenner |
Country Status (6)
Country | Link |
---|---|
US (1) | US5453004A (de) |
EP (1) | EP0617231B1 (de) |
AT (1) | ATE173075T1 (de) |
CA (1) | CA2119727C (de) |
DE (2) | DE4309115A1 (de) |
DK (1) | DK0617231T3 (de) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4424639A1 (de) * | 1994-07-13 | 1996-01-18 | Abb Research Ltd | Verfahren und Vorrichtung zur Brennstoffverteilung in einem sowohl für flüssige als auch für gasförmige Brennstoffe geeigneten Brenner |
DE4446842B4 (de) * | 1994-12-27 | 2006-08-10 | Alstom | Verfahren und Vorrichtung zum Zuleiten eines gasförmigen Brennstoffs in einen Vormischbrenner |
DE19527088A1 (de) | 1995-07-25 | 1997-01-30 | Viessmann Werke Kg | Ölverdampfungsbrenner |
DE19545036A1 (de) * | 1995-12-02 | 1997-06-05 | Abb Research Ltd | Vormischbrenner |
DE19606733C1 (de) | 1996-02-23 | 1997-05-07 | Viessmann Werke Kg | Verfahren zum Betrieb insbesondere eines Ölvergasungsbrenners und Brenner zu seiner Durchführung |
DE19635545C1 (de) * | 1996-09-02 | 1998-02-26 | Viessmann Werke Kg | Verfahren zur sicheren Zündung und zum Anfahren von Brennern mit Abgasrückführung beim Einsatz flüssiger oder gasförmiger Brennstoffe und Brennereinrichtungen zur Durchführung der Verfahren |
ATE198788T1 (de) * | 1997-03-18 | 2001-02-15 | Alstom Power Schweiz Ag | Verfahren zum betrieb eines drallstabilisierten brenners sowie brenner zur durchführung des verfahrens |
ATE232588T1 (de) * | 1997-03-18 | 2003-02-15 | Alstom Switzerland Ltd | Verfahren zum betrieb einer kesselanlage und die kesselanlage |
DE19721936A1 (de) * | 1997-05-26 | 1998-12-03 | Abb Research Ltd | Brenner zum Betrieb eines Aggregates zur Erzeugung eines Heissgases |
DE19814768A1 (de) | 1998-04-02 | 1999-10-07 | Viessmann Werke Kg | Blaubrenner |
EP1002992B1 (de) * | 1998-11-18 | 2004-09-29 | ALSTOM Technology Ltd | Brenner |
JP3735594B2 (ja) * | 2002-06-28 | 2006-01-18 | 株式会社東芝 | 光ディスク装置と光ディスク装置の待機方法 |
US7199088B2 (en) | 2002-07-01 | 2007-04-03 | Shell Oil Company | Lubricating oil for a diesel powered engine and method of operating a diesel powered engine |
NO325990B1 (no) * | 2006-06-23 | 2008-09-01 | Rolf B Rummelhoff | Etterbrenner for gass fra gassifiseringsanlegg for trebrensel |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3868211A (en) * | 1974-01-11 | 1975-02-25 | Aqua Chem Inc | Pollutant reduction with selective gas stack recirculation |
US4277942A (en) * | 1979-02-28 | 1981-07-14 | Kommanditbolaget United Stirling | Exhaust gas recirculation apparatus |
DE3424069C2 (de) * | 1984-06-29 | 1987-01-15 | Electrolux S.A.R.L., Vianden | Topfbrenner für flüssigen Brennstoff |
GB2175684B (en) * | 1985-04-26 | 1989-12-28 | Nippon Kokan Kk | Burner |
DE3821526A1 (de) * | 1988-06-25 | 1989-12-28 | May Michael G | Verfahren und einrichtung zur verbrennung von brennstoff |
CH680157A5 (de) * | 1989-12-01 | 1992-06-30 | Asea Brown Boveri | |
CH684962A5 (de) * | 1991-07-03 | 1995-02-15 | Asea Brown Boveri | Brenner zum Betrieb einer Brennkraftmaschine, einer Brennkammer einer Gasturbogruppe oder einer Feuerungsanlage. |
DE4209221A1 (de) * | 1992-03-21 | 1993-09-23 | Deutsche Forsch Luft Raumfahrt | Stickoxidarmer brenner |
-
1993
- 1993-03-23 DE DE4309115A patent/DE4309115A1/de not_active Ceased
-
1994
- 1994-03-15 EP EP94103983A patent/EP0617231B1/de not_active Expired - Lifetime
- 1994-03-15 AT AT94103983T patent/ATE173075T1/de active
- 1994-03-15 DK DK94103983T patent/DK0617231T3/da active
- 1994-03-15 DE DE59407199T patent/DE59407199D1/de not_active Expired - Fee Related
- 1994-03-22 CA CA002119727A patent/CA2119727C/en not_active Expired - Fee Related
- 1994-03-22 US US08/216,463 patent/US5453004A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CA2119727A1 (en) | 1994-09-24 |
EP0617231A1 (de) | 1994-09-28 |
DK0617231T3 (da) | 1999-07-19 |
ATE173075T1 (de) | 1998-11-15 |
US5453004A (en) | 1995-09-26 |
DE4309115A1 (de) | 1994-09-29 |
CA2119727C (en) | 1999-03-23 |
DE59407199D1 (de) | 1998-12-10 |
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