EP0851176A3 - Boiler for a heat generator - Google Patents

Boiler for a heat generator Download PDF

Info

Publication number
EP0851176A3
EP0851176A3 EP97810921A EP97810921A EP0851176A3 EP 0851176 A3 EP0851176 A3 EP 0851176A3 EP 97810921 A EP97810921 A EP 97810921A EP 97810921 A EP97810921 A EP 97810921A EP 0851176 A3 EP0851176 A3 EP 0851176A3
Authority
EP
European Patent Office
Prior art keywords
combustion chamber
premix burner
boiler
heat generator
backflow
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Withdrawn
Application number
EP97810921A
Other languages
German (de)
French (fr)
Other versions
EP0851176A2 (en
Inventor
Jürgen Dr. Haumann
Hans Peter Knöpfel
Thomas Dr. Sattelmayer
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.)
ABB Research Ltd Switzerland
Original Assignee
ABB Research Ltd Switzerland
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 ABB Research Ltd Switzerland filed Critical ABB Research Ltd Switzerland
Publication of EP0851176A2 publication Critical patent/EP0851176A2/en
Publication of EP0851176A3 publication Critical patent/EP0851176A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D17/00—Burners for combustion simultaneously or alternately of gaseous or liquid or pulverulent fuel
    • F23D17/002—Burners for combustion simultaneously or alternately of gaseous or liquid or pulverulent fuel gaseous or liquid fuel
    • 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
    • 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
    • F23D—BURNERS
    • F23D11/00—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
    • F23D11/36—Details
    • F23D11/40—Mixing tubes; Burner heads
    • F23D11/402—Mixing chambers downstream of the nozzle
    • 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
    • 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
    • F23M9/00—Baffles or deflectors for air or combustion products; Flame shields
    • F23M9/06—Baffles or deflectors for air or combustion products; Flame shields in fire-boxes
    • 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
    • F23D—BURNERS
    • F23D2209/00—Safety arrangements
    • F23D2209/20—Flame lift-off / stability

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)

Abstract

Bei einer Kesselanlage für eine Wärmeerzeugung, welche im wesentlichen aus einem Brennraum (17) und aus einem kopfseitig des Brennraumes wirkenden Vormischbrenner besteht, wird abströmungseitig dieses Vormischbrenners eine Begrenzungsvorrichtung (103, 104, 105) angeordnet. Diese hat die Aufgabe, die Ausbreitung einer vom Vormischbrenner gebildeten Rückströmzone (24) zu verhindern, dergestalt, dass eine zu starke Abkühlung der reagierten Rückströmgase innerhalb des Brennraumes verhindert wird.

Figure 00000001
In a boiler system for heat generation, which essentially consists of a combustion chamber (17) and a premix burner acting on the head side of the combustion chamber, a limiting device (103, 104, 105) is arranged on the downstream side of this premix burner. This has the task of preventing the spreading of a backflow zone (24) formed by the premix burner in such a way that excessive cooling of the reacted backflow gases within the combustion chamber is prevented.
Figure 00000001
EP97810921A 1996-12-30 1997-11-27 Boiler for a heat generator Withdrawn EP0851176A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19654741 1996-12-30
DE1996154741 DE19654741A1 (en) 1996-12-30 1996-12-30 Boiler plant for heat generation

Publications (2)

Publication Number Publication Date
EP0851176A2 EP0851176A2 (en) 1998-07-01
EP0851176A3 true EP0851176A3 (en) 1999-01-20

Family

ID=7816417

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97810921A Withdrawn EP0851176A3 (en) 1996-12-30 1997-11-27 Boiler for a heat generator

Country Status (2)

Country Link
EP (1) EP0851176A3 (en)
DE (1) DE19654741A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0985876A1 (en) * 1998-09-10 2000-03-15 Abb Research Ltd. Burner

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2250766A1 (en) * 1972-10-17 1974-04-18 Volkswagenwerk Ag BURNERS, IN PARTICULAR FOR VEHICLES
DE3341305A1 (en) * 1983-11-15 1985-05-30 Walter 7000 Stuttgart Swoboda Gasifying oil burner
GB2155609A (en) * 1984-03-09 1985-09-25 Walter William Pritchard Heat exchanger; space heater
EP0629817A2 (en) * 1993-06-18 1994-12-21 Abb Research Ltd. Furnace
EP0694730A2 (en) * 1994-07-25 1996-01-31 Abb Research Ltd. Burner
EP0777082A2 (en) * 1995-12-02 1997-06-04 Abb Research Ltd. Premix burner

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3011249A1 (en) * 1980-03-24 1982-01-21 Thermostar Heisler + Leins oHG Heizungs-und Klimatechnik, 7250 Leonberg Oil-gasification burner flame tube - has burner tube with larger inlet than outlet in longer outer tube
CH674561A5 (en) 1987-12-21 1990-06-15 Bbc Brown Boveri & Cie
CH680157A5 (en) * 1989-12-01 1992-06-30 Asea Brown Boveri
DE4446541A1 (en) * 1994-12-24 1996-06-27 Abb Management Ag Combustion chamber

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2250766A1 (en) * 1972-10-17 1974-04-18 Volkswagenwerk Ag BURNERS, IN PARTICULAR FOR VEHICLES
DE3341305A1 (en) * 1983-11-15 1985-05-30 Walter 7000 Stuttgart Swoboda Gasifying oil burner
GB2155609A (en) * 1984-03-09 1985-09-25 Walter William Pritchard Heat exchanger; space heater
EP0629817A2 (en) * 1993-06-18 1994-12-21 Abb Research Ltd. Furnace
EP0694730A2 (en) * 1994-07-25 1996-01-31 Abb Research Ltd. Burner
EP0777082A2 (en) * 1995-12-02 1997-06-04 Abb Research Ltd. Premix burner

Also Published As

Publication number Publication date
DE19654741A1 (en) 1998-07-02
EP0851176A2 (en) 1998-07-01

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