EP0128809B1 - Gasbrenner des Vormischtyps und mit Flammenüberwachung und Anwendung dieses Brenners insbesondere für Tauchrohranlage - Google Patents

Gasbrenner des Vormischtyps und mit Flammenüberwachung und Anwendung dieses Brenners insbesondere für Tauchrohranlage Download PDF

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Publication number
EP0128809B1
EP0128809B1 EP84401101A EP84401101A EP0128809B1 EP 0128809 B1 EP0128809 B1 EP 0128809B1 EP 84401101 A EP84401101 A EP 84401101A EP 84401101 A EP84401101 A EP 84401101A EP 0128809 B1 EP0128809 B1 EP 0128809B1
Authority
EP
European Patent Office
Prior art keywords
burner
flame
grid
air
connection piece
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
Application number
EP84401101A
Other languages
English (en)
French (fr)
Other versions
EP0128809A3 (en
EP0128809A2 (de
Inventor
Benoît Henri Fardeau
Claude Chapuis
Georges Austruy
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.)
Engie SA
Original Assignee
Gaz de France SA
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 Gaz de France SA filed Critical Gaz de France SA
Priority to AT84401101T priority Critical patent/ATE32136T1/de
Publication of EP0128809A2 publication Critical patent/EP0128809A2/de
Publication of EP0128809A3 publication Critical patent/EP0128809A3/fr
Application granted granted Critical
Publication of EP0128809B1 publication Critical patent/EP0128809B1/de
Expired legal-status Critical Current

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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
    • F23D14/46—Details
    • F23D14/72—Safety devices, e.g. operative in case of failure of gas supply
    • F23D14/725—Protection against flame failure by using flame detection devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D99/00—Subject matter not provided for in other groups of this subclass
    • F23D99/002—Burners specially adapted for specific applications
    • F23D99/004—Burners specially adapted for specific applications for use in particular heating operations
    • F23D99/005—Burners specially adapted for specific applications for use in particular heating operations for heating liquids, e.g. for vaporising or concentrating

Definitions

  • the present invention relates to improvements to a gas burner of the premix type and flame control.
  • This type of burner is commonly used in industry, allowing in particular high heating powers per unit area.
  • the gas burner of the premix and flame control type comprises an inlet of the air + fuel gas premix in a distribution chamber opening out through a flame stabilization grid in a combustion chamber, and a combustion cell. control of the burner flame placed behind a nozzle, which nozzle extends relative to the direction of flow of the fuel mixture behind the flame stabilization grid, the axis of said nozzle being directed substantially perpendicularly to said grid.
  • Document FR-A-2 274 869 also recommends placing the control cell behind a nozzle opening at the level of the stabilization grid and disposed substantially perpendicularly to the latter. It also provides, to avoid ignition of the burner due to possible flashbacks, to surround part of the nozzle with a cavity acting as a flameback detector.
  • the tip used is of the quartz and return prism type, which can cause problems in terms of detection by the cell in the event of condensation condensation and dirt deposits on the tip.
  • such a construction moreover not intended for installations with a submerged tube, does not allow the cell to be placed as close as possible to the flame so as to improve the reading, the latter then being able to be damaged by a return violent flame.
  • Document GB-A-491,714 teaches a burner in which a control cell is arranged towards the bottom of a nozzle and can be cooled by part of the combustion air supplying the burner.
  • this construction also does not effectively protect the cell against flashback by ensuring optimal positioning of this cell so as to improve detection and control security.
  • the cell is effectively protected whatever the flame instabilities that may arise and it can therefore be placed as close as possible to the flame of the burner to be checked.
  • the reading cell is thus protected by. the stabilization grid and by the distribution chamber interposed between it and said grid. It will be noted that this arrangement makes it possible, moreover, when the burner is intended to equip a submerged tube, to easily dispose the control cell outside the bath to be heated.
  • an ignition electrode is mounted through said distribution chamber opening out by its electrode suitably electrically isolated through said distribution grid and by its head connected to the power supply behind said chamber distribution.
  • the invention also applies to the use burners adapting to a combustion chamber.
  • the burner identified as a whole 1 essentially comprises a separation chamber into which arrives via a supply line 3 the air / combustible gas premixing advantageously opening into the chamber through a substantially tangential opening 4.
  • the chamber 2 which has the general shape of a cylindrical box with a substantially circular section is closed on its front face by a flame stabilization grid 5.
  • This grid can be of the type described in the aforementioned French patent No. 69.37574, comprising essentially orifices of suitable diameters and distribution to ensure good attachment and good stabilization of the flames at the inlet of the combustion chamber 6 and this for the powers considered of operating the burner.
  • the box forming the distribution chamber is closed by a wall 7.
  • the letters “front” and “rear” of the burner have been identified by the letters AV and AR, with reference to the circulation of the combustible mixture in the burner as shown by the arrows.
  • the ignition of the burner is ensured by an electrode 8 supplied with a suitable high voltage as shown in diagram 9 and suitably isolated, the ignition taking place by sparks between the tip 10 of the ignition electrode and the wall. next to the metal front flange 11 suitably grounded in the box forming the distribution chamber 2.
  • a flame control cell 12 sensitive to the ultraviolet radiation of the flame and “reading” the information through the orifices of the grate was placed behind the rear wall 7 of the chamber 2. flame stabilization 5.
  • the cell 12 is placed behind a nozzle 13 whose axis 14 is directed substantially perpendicular to the flame stabilization grid 5, said nozzle communicating through an orifice in the chamber distribution 2.
  • the burner is supplied with combustible gas by a pipe 18 and with main air by a pipe 19, the premix being thus delivered to the pipe 3 under substantially stoichiometric conditions.
  • the air is supplied by a fan or compressor 20 which supplies not only the main air duct 19 but also the secondary air duct 16, the connections being thus made that the secondary air inlet pressure in the nozzle 13 will be greater than that of the arrival of the premix in the distribution chamber 2, so as to obtain the sweeping and cooling of the nozzle 13 by the secondary air flow arriving at 17 as desired.
  • the cell 12 is connected to the burner operating programmer 21 which controls the ignition electrode 8 the fan 20 and the controlled gas inlet valve 23 by suitable connections.
  • the distribution chamber can optionally be provided with additional grids for homogenization and suitable distribution of the premix, as indicated for example in 27.
  • a torch or an auxiliary burner can optionally be used for igniting the burner which can be arranged for example in the axis of the burner or on the combustion chamber itself on which the burner is fixed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gas Burners (AREA)
  • Pre-Mixing And Non-Premixing Gas Burner (AREA)
  • Control Of Combustion (AREA)

Claims (4)

1. Gasbrenner des Vormischtyps und mit Flammenüberwachung mit einer Zufuhr des brennbaren Vorgemisches Luft + Gas in einer Verteilerkammer, welche durch ein Flammenstabilisierungsgitter in eine Verbrennungskammer mündet, und mit einer Flammenüberwachungszelle (12) für den Brenner, die hinter einem Übergangsrohr (13) angeordnet ist, welches sich bezüglich der Fließrichtung des brennbaren Gemisches hinter dem Flammenstabilisierungsgitter (5) erstreckt, wobei die Achse (14) des Übergangsrohres im wesentlichen senkrecht zu dem Gitter (5) ausgerichtet ist, dadurch gekennzeichnet, daß zur Ermöglichung der Flammenüberwachung, indem man die Überwachungszelle (12) vor thermischen Beanspruchungen schützt, die mit dem Betrieb des Brenners verbunden sind,
- das Übergangsrohr (13) sich hinter die Verteilerkammer (2) erstreckt, in welche es durch eine Verbindungsöffnung mündet, und eine Zufuhr (16) an Sekundärluft (17) unter Druck aufnimmt, wobei die Luft unter dem für den Betrieb des Brenners notwendigen Druck durch eine Hauptleitung (19) zu der Vorgemischzufuhr (3) und durch eine Sekundärleitung (16) zu dem Übergangsrohr (13) zugeführt wird, und
- die Verbindungen zwischen der Hauptluft (19) und der Sekundärluft (16) derart ausgeführt sind, daß der Druck der Sekundärluft zu dem Übergangsrohr größer als der der Zufuhr des Vorgemisches in der Verteilerkammer (2) ist.
2. Brenner nach Anspruch 1, dadurch gekennzeichnet, daß eine Zündelektrode (8) quer durch die Verteilerkammer (2) angebracht ist und durch ihre Elektrode (10), die in geeigneter Weise elektrisch isoliert ist, quer durch das Verteilergitter (5) mündet und über ihren Kopf mit der elektrischen Versorgung hinter der Verteilerkammer (2) verbunden ist.
3. Brenner nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Stabilisierungsgitter (5) in einem Flansch (11) angebracht ist, welcher vorn die Verteilerkammer (2) schließt und sich an einen Montageflansch (26) der Verbrennungskammer (6) anpaßt, wobei das Gitter (5) einen Durchmesser (d) hat, der deutlich unter dem (D) der Öffnung des Montageflansches (26) der Verbrennungskammer (6) ist.
4. Verwendung des Brenners nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß er sich an eine kompakte Gesamtheit von Verbrennungskammer (6) und versenktem Rohr anpaßt.
EP84401101A 1983-06-08 1984-05-29 Gasbrenner des Vormischtyps und mit Flammenüberwachung und Anwendung dieses Brenners insbesondere für Tauchrohranlage Expired EP0128809B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84401101T ATE32136T1 (de) 1983-06-08 1984-05-29 Gasbrenner des vormischtyps und mit flammenueberwachung und anwendung dieses brenners insbesondere fuer tauchrohranlage.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8309468A FR2547394B1 (fr) 1983-06-08 1983-06-08 Bruleur a gaz du type a premelange et a controle de flamme et utilisation de ce bruleur en particulier pour installation a tube immerge
FR8309468 1983-06-08

Publications (3)

Publication Number Publication Date
EP0128809A2 EP0128809A2 (de) 1984-12-19
EP0128809A3 EP0128809A3 (en) 1985-08-14
EP0128809B1 true EP0128809B1 (de) 1988-01-20

Family

ID=9289577

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84401101A Expired EP0128809B1 (de) 1983-06-08 1984-05-29 Gasbrenner des Vormischtyps und mit Flammenüberwachung und Anwendung dieses Brenners insbesondere für Tauchrohranlage

Country Status (7)

Country Link
US (1) US4583938A (de)
EP (1) EP0128809B1 (de)
JP (1) JPS6069427A (de)
AT (1) ATE32136T1 (de)
CA (1) CA1235366A (de)
DE (1) DE3468931D1 (de)
FR (1) FR2547394B1 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2606490B1 (fr) * 1986-11-07 1990-07-13 Gaz De France Bruleur a gaz du type a air souffle et a premelange
FR2606492B1 (fr) * 1986-11-07 1991-02-15 Gaz De France Bruleur a gaz a premelange et a controle de flamme
US5924287A (en) * 1991-05-29 1999-07-20 Best; Frederick George Domestic energy supply system
FR2685448B1 (fr) * 1991-12-20 1994-03-25 Gaz De France Bruleur a gaz a grille de combustion, son procede de combustion, et installation de chauffage comprenant un tel bruleur.
FR2685447B1 (fr) * 1991-12-20 1998-01-02 Gaz De France Bruleur perfectionne a grille ainsi qu'installation de chauffage equipee d'un tel bruleur.
KR100384645B1 (ko) * 2000-08-08 2003-05-22 박동만 액체연료 연소장치용 버너

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB491714A (en) * 1937-03-01 1938-09-01 G C Pillinger & Co Ltd Improvements relating to automatic control systems for heating burners
US2395103A (en) * 1943-11-18 1946-02-19 Claus Heriberto Enrique G Juan Turbulent burner for fuels in general
GB613883A (en) * 1946-06-18 1948-12-03 Norman Swindin Improvements in submerged flame burners
FR1004670A (fr) * 1949-12-23 1952-04-01 Brûleur à combustibles liquides
US2772645A (en) * 1952-05-22 1956-12-04 Babcock & Wilcox Co Fuel and air control damper for cyclone furnaces
US2843197A (en) * 1954-12-13 1958-07-15 Howard B Snyder Burner
FR1257092A (fr) * 1960-02-16 1961-03-31 Pillard Chauffage Dispositif de détection par réflexion, adjoint aux cellules photo-électriques de contrôle de flamme
US3280882A (en) * 1964-04-06 1966-10-25 Babcock & Wilcox Co Flame detector arrangement
US3486835A (en) * 1968-04-16 1969-12-30 Sun Ray Burner Mfg Corp Power conversion burner head
FR2063803A5 (de) * 1969-10-31 1971-07-09 Gaz De France
JPS4914543B1 (de) * 1970-11-20 1974-04-08
US3825913A (en) * 1972-03-31 1974-07-23 Electronics Corp America Fuel burner supervisory system
FR2274869A1 (fr) * 1974-06-14 1976-01-09 Antargaz Dispositif de controle du fonctionnement d'un systeme de chauffage, et notamment d'un bruleur a gaz
JPS51133108A (en) * 1975-05-15 1976-11-18 Nippon Kokan Kk <Nkk> A swirl burner for hot stoves

Also Published As

Publication number Publication date
FR2547394A1 (fr) 1984-12-14
US4583938A (en) 1986-04-22
EP0128809A3 (en) 1985-08-14
ATE32136T1 (de) 1988-02-15
EP0128809A2 (de) 1984-12-19
FR2547394B1 (fr) 1987-07-17
DE3468931D1 (en) 1988-02-25
CA1235366A (fr) 1988-04-19
JPS6069427A (ja) 1985-04-20

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