DE3527348A1 - Combustion chamber - Google Patents
Combustion chamberInfo
- Publication number
- DE3527348A1 DE3527348A1 DE19853527348 DE3527348A DE3527348A1 DE 3527348 A1 DE3527348 A1 DE 3527348A1 DE 19853527348 DE19853527348 DE 19853527348 DE 3527348 A DE3527348 A DE 3527348A DE 3527348 A1 DE3527348 A1 DE 3527348A1
- Authority
- DE
- Germany
- Prior art keywords
- air
- burners
- combustion chamber
- flames
- combustion
- 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- Withdrawn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
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C5/00—Disposition of burners with respect to the combustion chamber or to one another; Mounting of burners in combustion apparatus
- F23C5/08—Disposition of burners
- F23C5/32—Disposition of burners to obtain rotating flames, i.e. flames moving helically or spirally
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)
Abstract
Description
Die Erfindung betrifft eine Brennkammer mit den Merkmalen des Oberbegriffes des Patantanspruches.The invention relates to a combustion chamber with the features of General term of the patent claim.
In einer solchen Brennkammer wird durch die gestufte Luftaufgabe die Bildung von Stickoxiden im Rauchgas herabgesetzt. In einer bekannten Brennkammer (if Die Industriefeuerung Nr. 20, 1981, Seiten 64-71) sind die Luftdüsen senkrecht oberhalb der Brenner vorgesehen. Bei einer solchen Tangentialfeuerung mit einer Rotation der aufsteigenden Flammen und mit Luftmangel im Brennerbereich besteht die Gefahr, daß sich Gassträhnen mit einem überhöhten Kohlenmonoxidgehalt ausbilden. Mit einer solchen Gasatmosphäre sind überhöhte Gehalte an Schwefelwasserstoff verbunden, die partiell Korrosionsschäden an den Brennkammerwänden auslösen können und damit die Betriebssicherheit gefährden.In such a combustion chamber, the staged air supply the formation of nitrogen oxides in the flue gas is reduced. In a well-known combustion chamber (if Die Industriefeuer No. 20, 1981, pages 64-71), the air nozzles are vertically above the burner provided. With such a tangential firing with a rotation of the rising flames and lack of air there is a risk of gas streaks in the burner area train with an excessive carbon monoxide content. With such a gas atmosphere, excessive levels are present Hydrogen sulfide linked, the partial corrosion damage can trigger on the combustion chamber walls and thus the operational safety endanger.
Der Erfindung liegt die Aufgabe zugrunde, die gattungsgemäße Brennkammer derart auszubilden, daß die gestufte, zu einer verminderten Bildung von Stickoxiden führende Luftaufgabe erhalten bleibt, daß aber örtlich überhöhte Konzentrationen an Kohlenmonoxid im Rauchgas vermieden werden.The invention has for its object the generic Form combustion chamber so that the stepped one reduced formation of nitrogen oxides leading to air pollution remains, but locally excessive concentrations of carbon monoxide in the flue gas can be avoided.
Diese Aufgabe wird bei einer gattungsgemäßen Brennkammer durch die kennzeichnenden Merkmale des Patentanspruches gelöst.This task is accomplished with a generic combustion chamber solved the characterizing features of the claim.
Durch die versetzte Anordnung der Luftdüsen mischt sich die Restluft in die von dem jeweiligen Brenner ausgehende, aufsteigende Flamme ein. Dadurch findet eine unmittelbare Restverbrennung der brennbaren Bestandteile des unter Luftmangel erzeugten Rauchgasstromes statt, so daß das Entstehen von korrosionsgefährdenden Gassträhnen vermieden wird. Due to the offset arrangement of the air nozzles, the mixes Residual air in the rising from the respective burner Flame on. As a result, there is an immediate residual combustion of the combustible components of the lack of air generated flue gas flow instead, so that the emergence of corrosive gas streaks is avoided.
Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird im folgenden näher erläutert. Es zeigen:An embodiment of the invention is in the drawing shown and is explained in more detail below. Show it:
Fig. 1 schematisch die Seitenansicht einer erfindungsgemäßen Brennkammer und Fig. 1 shows schematically the side view of a combustion chamber according to the invention and
Fig. 2 die dazugehörende Draufsicht. Fig. 2 shows the associated top view.
Eine Brennkammer 1 ist durch Wände 2 seitlich begrenzt, die aus gasdicht miteinander verschweißten Rohren gebildet sind. In den Wänden 2 sind in mehreren Ebenen Brenner 3 angeordent, die in einer Ebene über den Umfang der Brennkammer 1 verteilt sind. Die Brenner 3 erhalten nicht gezeigte Brennstoff- und Luftzuführungen. Als Brennstoff kommt Kohlenstaub oder auch Gas oder Öl in Frage.A combustion chamber 1 is laterally delimited by walls 2 which are formed from tubes which are welded together in a gastight manner. Burners 3 are arranged in the walls 2 in several levels and are distributed in one level over the circumference of the combustion chamber 1 . The burners 3 receive fuel and air supplies, not shown. Coal dust or gas or oil can be used as fuel.
Die Feuerung ist als Tangentialfeuerung ausgebildet, bei der die Brenner 3 so angeordnet sind, daß die aus ihnen austretenden Strahlen auf einen imaginären Kreis 4 gerichtet sind. Auf diese Weise entstehen rotierende, aufsteigende Flammen, deren Drehrichtung in Fig. 2 durch Pfeile angedeutet ist.The furnace is designed as a tangential furnace, in which the burners 3 are arranged so that the rays emerging from them are directed onto an imaginary circle 4 . In this way, rotating, rising flames arise, the direction of rotation of which is indicated in FIG. 2 by arrows.
Die Brenner 3 werden mit Luftmangel betrieben, wobei die Verbrennungsluft im Falle der Verbrennung von festem Brennstoff als Primärluft zusammen mit dem Brennstoff und getrennt davon als Sekundärluft in die Brennkammer 1 eingebracht wird. Die restliche Verbrennungsluft, deren Menge mehr als 15% der Gesamtluft ausmacht, wird durch von den Brennern 3 getrennte Luftdüsen 5 in die Brennkammer 1 eingeblasen. Diese Luftdüsen 5 sind seitlich von den Brennern 3 angeordnet, und zwar so, daß sie in Drehrichtung der Flammen hinter den Brennern 3 liegen. Auf diese Weise wird die aus den Luftdüsen 5 austretende Luft in die aufsteigenden Flammen eingemischt.The burners 3 are operated with a lack of air, the combustion air being introduced into the combustion chamber 1 as primary air together with the fuel and separately as secondary air in the case of the combustion of solid fuel. The remaining combustion air, the amount of which makes up more than 15% of the total air, is blown into the combustion chamber 1 through air nozzles 5 separated from the burners 3 . These air nozzles 5 are arranged laterally from the burners 3 , in such a way that they lie behind the burners 3 in the direction of rotation of the flames. In this way, the air emerging from the air nozzles 5 is mixed into the rising flames.
Claims (1)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19853527348 DE3527348A1 (en) | 1985-07-31 | 1985-07-31 | Combustion chamber |
AU58731/86A AU581997B2 (en) | 1985-07-31 | 1986-06-13 | Combustion chamber |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19853527348 DE3527348A1 (en) | 1985-07-31 | 1985-07-31 | Combustion chamber |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3527348A1 true DE3527348A1 (en) | 1987-02-12 |
Family
ID=6277218
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19853527348 Withdrawn DE3527348A1 (en) | 1985-07-31 | 1985-07-31 | Combustion chamber |
Country Status (2)
Country | Link |
---|---|
AU (1) | AU581997B2 (en) |
DE (1) | DE3527348A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3920798A1 (en) * | 1989-06-24 | 1991-01-10 | Balcke Duerr Ag | DEVICE FOR BURNING FUELS IN A COMBUSTION CHAMBER |
DE19939672A1 (en) * | 1999-08-20 | 2001-03-15 | Alstom Power Boiler Gmbh | Firing system to generate heat, especially steam, has inside rectangular fire chamber burner reflectors on opposite walls and with air and fuel nozzles of burners tangential to produce common circular flow |
DE19514302C2 (en) * | 1995-04-25 | 2001-11-29 | Alstom Power Boiler Gmbh | Process and combustion system for low-nitrogen heat generation |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3180289A (en) * | 1962-03-24 | 1965-04-27 | Kohlenscheidungs Gmbh | Slagging cyclone furnace |
EP0022454A2 (en) * | 1979-07-12 | 1981-01-21 | Combustion Engineering, Inc. | Furnace with sets of nozzles for tangential introduction of pulverized coal, air and recirculated gases |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4150631A (en) * | 1977-12-27 | 1979-04-24 | Combustion Engineering, Inc. | Coal fired furance |
-
1985
- 1985-07-31 DE DE19853527348 patent/DE3527348A1/en not_active Withdrawn
-
1986
- 1986-06-13 AU AU58731/86A patent/AU581997B2/en not_active Ceased
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3180289A (en) * | 1962-03-24 | 1965-04-27 | Kohlenscheidungs Gmbh | Slagging cyclone furnace |
EP0022454A2 (en) * | 1979-07-12 | 1981-01-21 | Combustion Engineering, Inc. | Furnace with sets of nozzles for tangential introduction of pulverized coal, air and recirculated gases |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3920798A1 (en) * | 1989-06-24 | 1991-01-10 | Balcke Duerr Ag | DEVICE FOR BURNING FUELS IN A COMBUSTION CHAMBER |
DE19514302C2 (en) * | 1995-04-25 | 2001-11-29 | Alstom Power Boiler Gmbh | Process and combustion system for low-nitrogen heat generation |
DE19939672A1 (en) * | 1999-08-20 | 2001-03-15 | Alstom Power Boiler Gmbh | Firing system to generate heat, especially steam, has inside rectangular fire chamber burner reflectors on opposite walls and with air and fuel nozzles of burners tangential to produce common circular flow |
DE19939672B4 (en) * | 1999-08-20 | 2005-08-25 | Alstom Power Boiler Gmbh | Firing system and method for generating heat by combustion |
Also Published As
Publication number | Publication date |
---|---|
AU5873186A (en) | 1987-02-05 |
AU581997B2 (en) | 1989-03-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8110 | Request for examination paragraph 44 | ||
8120 | Willingness to grant licenses paragraph 23 | ||
8127 | New person/name/address of the applicant |
Owner name: DEUTSCHE BABCOCK ENERGIE- UND UMWELTTECHNIK AG, 42 |
|
8130 | Withdrawal |