EP2522903A3 - Air nozzle for introducing a gas flow comprising an oxidation agent into a combustion chamber - Google Patents

Air nozzle for introducing a gas flow comprising an oxidation agent into a combustion chamber Download PDF

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Publication number
EP2522903A3
EP2522903A3 EP12166250.6A EP12166250A EP2522903A3 EP 2522903 A3 EP2522903 A3 EP 2522903A3 EP 12166250 A EP12166250 A EP 12166250A EP 2522903 A3 EP2522903 A3 EP 2522903A3
Authority
EP
European Patent Office
Prior art keywords
nozzle
gas flow
hood
air
introducing
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
EP12166250.6A
Other languages
German (de)
French (fr)
Other versions
EP2522903B1 (en
EP2522903A2 (en
Inventor
Guido Pütz
Manfred Walter
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.)
RWE Power AG
Original Assignee
RWE Power AG
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 RWE Power AG filed Critical RWE Power AG
Publication of EP2522903A2 publication Critical patent/EP2522903A2/en
Publication of EP2522903A3 publication Critical patent/EP2522903A3/en
Application granted granted Critical
Publication of EP2522903B1 publication Critical patent/EP2522903B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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 
    • F23C10/00—Fluidised bed combustion apparatus
    • F23C10/18—Details; Accessories
    • F23C10/20—Inlets for fluidisation air, e.g. grids; Bottoms
    • 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
    • F23C2900/10007—Spouted fluidized bed combustors

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluidized-Bed Combustion And Resonant Combustion (AREA)

Abstract

Luftdüse (1) zum Einbringen eines ein Oxidationsmittel umfassenden Gasstroms in einen Feuerraum, umfassend:
- einen Düsenfinger (2) mit mindestens einer Gasstromzuführung (3) und mindestens einer Gasstromausführung (4);
- eine Düsenhaube (7) zum Überdecken des Düsenfingers (2) zumindest im Bereich der mindestens einen Gasstromausführung (4) mit mindestens einem Loch (14) in der Außenhülle zum Ausleiten des Gasstroms;

wobei Düsenfinger (2) und Düsenhaube (7) durch eine gewindefreie Klemmverbindung lösbar miteinander verbindbar sind, wobei das mindestens eine Loch (14) mit der mindestens einen Gasstromausführung (4) in strömungstechnischer Verbindung steht, wenn Düsenfinger (2) und Düsenhaube (7) miteinander verbunden sind.An air nozzle (1) for introducing a stream of gas comprising an oxidant into a furnace, comprising:
- A nozzle finger (2) with at least one gas stream supply (3) and at least one gas flow design (4);
- A nozzle hood (7) for covering the nozzle finger (2) at least in the region of at least one gas flow design (4) with at least one hole (14) in the outer shell for discharging the gas stream;

wherein nozzle fingers (2) and nozzle hood (7) can be detachably connected to one another by a thread-free clamping connection, wherein the at least one hole (14) is in fluid communication with the at least one gas flow embodiment (4), if nozzle fingers (2) and nozzle hood (7) connected to each other.

Die erfindungsgemäße Luftdüse (1) erlaubt es in vorteilhafter Weise, bei guten strömungstechnischen Eigenschaften und einem geringen Verschleiß, Luft als einen ein Oxidationsmittel umfassenden Gasstrom in einen Feuerraum insbesondere einer Wirbelschichtfeuerung einzubringen. Gleichzeitig lässt sich die Düsenhaube (7) einfach reversibel vom Düsenfinger (2) trennen, die Luftdüsen (1) können so einfach inspiziert, gewartet und ausgetauscht werden.

Figure imgaf001
The air nozzle (1) according to the invention advantageously makes it possible, with good fluidic properties and low wear, to introduce air as a gas stream comprising an oxidizing agent into a combustion chamber, in particular a fluidized bed furnace. At the same time, the nozzle hood (7) can be easily reversibly separated from the nozzle finger (2), the air nozzles (1) can be so easily inspected, maintained and replaced.
Figure imgaf001
EP12166250.6A 2011-05-10 2012-05-01 Air nozzle for introducing a gas flow comprising an oxidation agent into a combustion chamber Not-in-force EP2522903B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102011101092A DE102011101092A1 (en) 2011-05-10 2011-05-10 An air nozzle for introducing a gas stream comprising an oxidizing agent into a combustion chamber

Publications (3)

Publication Number Publication Date
EP2522903A2 EP2522903A2 (en) 2012-11-14
EP2522903A3 true EP2522903A3 (en) 2015-01-21
EP2522903B1 EP2522903B1 (en) 2016-07-13

Family

ID=46052599

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12166250.6A Not-in-force EP2522903B1 (en) 2011-05-10 2012-05-01 Air nozzle for introducing a gas flow comprising an oxidation agent into a combustion chamber

Country Status (3)

Country Link
EP (1) EP2522903B1 (en)
DE (1) DE102011101092A1 (en)
PL (1) PL2522903T3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110397915A (en) * 2018-04-25 2019-11-01 诚实机械(株) Fluidized-bed combustion boiler air circulation spray nozzle device

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2884171B1 (en) 2013-12-11 2016-04-13 Doosan Lentjes GmbH Air distribution nozzle for a fluidized bed reactor and a fluidized bed reactor
US9333476B2 (en) * 2014-07-16 2016-05-10 Amec Foster Wheeler North America Corp. Grid nozzle assembly, a fluidized bed reactor with a grid nozzle assembly and methods of using a grid nozzle assembly
CN105465778B (en) * 2015-05-25 2018-02-23 无锡华光锅炉股份有限公司 A kind of fixed connection structure between blast cap and adapter
CN105444161B (en) * 2016-01-26 2017-07-07 哈尔滨红光锅炉总厂有限责任公司 Environment-friendly and energy-efficient CFBB
CN106705032B (en) * 2017-03-21 2019-04-16 陕西华电瑶池发电有限公司 Circulating fluidized bed boiler based on denitration minimum discharge technology
JP6235189B1 (en) * 2017-08-30 2017-11-22 三菱日立パワーシステムズ株式会社 Air nozzle, outer cylinder, boiler, power generation system, and method for replacing outer cylinder of air nozzle
CN111508319A (en) * 2020-04-24 2020-08-07 合肥磐石自动化科技有限公司 Air ring demonstration nozzle and demonstration device in liquid

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9003391U1 (en) * 1990-03-23 1990-07-12 Jünger + Gräter GmbH & Co. Feuerfestbau, 6830 Schwetzingen Kit of a nozzle base for the air supply in combustion furnaces
US20080127868A1 (en) * 2006-11-16 2008-06-05 Seminatore Salvatore J Nozzle system

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4038341C1 (en) 1990-12-01 1992-06-25 Evt Energie- Und Verfahrenstechnik Gmbh, 7000 Stuttgart, De Air nozzle for fluidic bed furnace - has protruding, screwed nozzle ring at air pipe end, with several apertures on partial circle

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9003391U1 (en) * 1990-03-23 1990-07-12 Jünger + Gräter GmbH & Co. Feuerfestbau, 6830 Schwetzingen Kit of a nozzle base for the air supply in combustion furnaces
US20080127868A1 (en) * 2006-11-16 2008-06-05 Seminatore Salvatore J Nozzle system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110397915A (en) * 2018-04-25 2019-11-01 诚实机械(株) Fluidized-bed combustion boiler air circulation spray nozzle device

Also Published As

Publication number Publication date
DE102011101092A1 (en) 2012-11-15
EP2522903B1 (en) 2016-07-13
PL2522903T3 (en) 2017-03-31
EP2522903A2 (en) 2012-11-14

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