EP0718552B1 - Brûleur du type à mélange externe - Google Patents
Brûleur du type à mélange externe Download PDFInfo
- Publication number
- EP0718552B1 EP0718552B1 EP95402760A EP95402760A EP0718552B1 EP 0718552 B1 EP0718552 B1 EP 0718552B1 EP 95402760 A EP95402760 A EP 95402760A EP 95402760 A EP95402760 A EP 95402760A EP 0718552 B1 EP0718552 B1 EP 0718552B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- nozzle
- holes
- fluid
- chamber
- burner
- 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
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/20—Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone
- F23D14/22—Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone with separate air and gas feed ducts, e.g. with ducts running parallel or crossing each other
Definitions
- the present invention relates to a burner of the type external mixing.
- Waste in the form of a gas, a liquid, or a foam, possibly containing suitable additives are sent to a powered burner by two pure oxygen, or at least with high content.
- This process consists dispersing the waste to be incinerated in an aqueous solution containing a surfactant and, where appropriate, a fuel, to transform this solution into a foam slightly pressurized, and transfer this foam to a cyclone oven by passing it through an oxygen burner.
- the object of the present invention is to provide a burner with improved performance compared to to the device of the prior art, a homogeneous flame can occur at a short distance, substantially constant despite variations in fuel, from the nose of the burner.
- the burner of the invention can be used in all areas, without being limited to waste incineration.
- the invention provides a external mix type burner with pierced nose a passage for supplying a first fluid, and a passage supply of a second fluid capable of forming a flame when in contact with the first, the burner operating by flame formation a short distance from the nose, the nose being made up of a part with a pierced outer face of holes, some of these holes opening into a room supplied with the first fluid, this chamber being bounded by the nose, a side wall pierced with orifices to get the first fluid, and a bottom, transverse to the side wall, the side wall being connected waterproof with the nose and with the bottom, and some others nose holes each containing a tube attached to the nose so watertight, and crossing the bottom also in leaktight fashion, to lead into a second fluid supply conduit, all the holes opening into the chamber and the set of holes containing tubes each having a regular and uniform distribution on the outside of the nose.
- the first fluid can be the fuel, in the form foam or gas or liquid, and the second fluid may be oxygen.
- the opposite situation is possible.
- the number and respective diameters of the holes opening into the chamber and tubes is obviously function of the desired combustion, and in particular of the nature fuel and fuel.
- the burner as a whole, includes a body tubular C visible in Figure 1, and a head T, visible more precisely in Figures 2 and 3.
- Body C comprises several concentric tubes, namely, starting from the axis, a first tube 2 which is connected to an oxygen inlet 3, and which, from opposite side, leads to head T.
- a second tube 4 defines with the tube 2 an annular conduit 5 which serves to feed fuel from fuel inlet 6 up to head T.
- a third and a fourth tube concentric 7, 8 define between them two spaces annulars intended for the circulation of a cooling, which enters the annular space outside 9 by an entry 10, and comes out of the space inner ring 11 by an outlet 12. The two spaces annulars 9 and 11 communicate with each other at the level of the burner head T.
- the burner head includes a part called "nose", which has the general shape of a disc 13, drilled, in its part central, of a multitude of orifices 14, 15.
- the face outer 16 of the nose 13 is flat, while its opposite face 17 carries a first external projection 18 intended for its connection with the outer tube 8, and another protruding annular 19 which serves to delimit, with the face 17, a room 20.
- a shutter piece 21 has the general shape a cylinder open at one end and closed at the other end by a perforated disc 22.
- the cylindrical part 23 of the part 21 is welded by its ends to the relief cylindrical 19 of the nose.
- a number of radial holes 24, arranged in two radial planes, are provided in the cylindrical part 23, a short distance from the disc 22.
- the holes 14 and 15 of the burner nose 13 open all in room 20.
- Figure 3 shows their distribution regular. A number of these holes 14 are found in axial alignment with holes 25 of the part shutter 21, and a tube 26 is crimped in each hole 14 and each corresponding hole 25. All holes 25 of the disc 22 are connected to a corresponding bore 14 of the nose so that there is no communication between the room 20 and space 27 which is on the opposite side of disc 22, and which extends the inlet duct oxygen.
- FIG 3 there is shown in dark the tubes 14 which are provided with tubes 26, and therefore communicate with holes 25 and with space 27, and clearly tubes 15 which communicate with chamber 20.
- the holes 14 and the holes 15 are evenly distributed. The ratio of the number of holes 14 to the number of holes 15 is obviously adapted depending on the problem.
- the end of the tube 4 is welded to a shoulder outside 28 carried by the cylindrical wall 23 of the part shutter 21. This shoulder is closer to the face outer of the nose than the 25 holes.
- the fuel therefore penetrates radially into chamber 20.
- the currents of fuel coming out of the holes 25 strike the tubes 26 before exiting through the orifices 15 of the nose. It results in mixing which ensures that the flow rates of each of the 15 holes are the same.
- Room 20 is also a buffer chamber which homogenizes the variations fuel composition.
- conduits 26, and the holes 14 route oxygen directly from space 27, without putting it in contact with the fuel in chamber 20. Again the distribution of holes 14 ensures distribution regular.
- the structure of the burner thus makes it possible to obtain a particularly homogeneous and constant flame.
- the double-walled cooling circuit 9, 11 is practically extends to the level of disc 13. It therefore comes closer to the outer face 16 of the nose than the weld connecting the shoulder 28 to the tube 4. This weld is therefore effectively cooled, which is a guarantee of duration.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Gas Burners (AREA)
Description
Claims (8)
- Brûleur du type à mélange externe, comportant un nez (13) percé d'un passage d'amenée d'un premier fluide, et d'un passage d'amenée d'un second fluide susceptible de former une flamme lorsqu'il est au contact du premier, le brûleur fonctionnant par formation de la flamme à faible distance du nez,le nez (13) étant constitué d'une pièce présentant une face extérieure percée de trous, certains de ces trous (15) débouchant dans une chambre (20) alimentée avec le premier fluide, cette chambre étant délimitée par le nez (13), une paroi latérale (23) percée d'orifices pour l'arrivée du premier fluide, et un fond (22), transversal à la paroi latérale, la paroi latérale étant en liaison étanche avec le nez et avec le fond, et certains autres trous (14) du nez contenant chacun un tube (26) fixé au nez de façon étanche, et traversant le fond (22) également de façon étanche, pour déboucher dans un conduit d'amenée du second fluide, l'ensemble des trous débouchant dans la chambre et l'ensemble des trous contenant des tubes ayant chacun une répartition régulière et uniforme sur la face extérieure du nez.
- Brûleur selon la revendication 1, caractérisé en ce que la face extérieure (16) du nez (13) est à peu près plane.
- Brûleur selon la revendication 1 ou 2, caractérisé en ce que les trous (14, 15) sont parallèles.
- Brûleur selon l'une des revendications 1 à 3, caractérisé en ce que le nez du brûleur est constitué d'une plaque sensiblement plane, percée desdits trous dans sa partie centrale et présentant, sur son côté opposé à sa face extérieure, une saillie cylindrique (19) qui entoure l'ensemble des trous et constitue une partie de la paroi latérale de la chambre.
- Brûleur selon l'une des revendications 1 à 4, caractérisé en ce que le fond de la chambre est constitué comme une plaque plane (22) qui porte un prolongement cylindrique (23) qui constitue au moins une partie de la paroi latérale de la chambre.
- Brûleur selon l'une des revendications 1 à 5, caractérisé en ce que le conduit d'amenée du second fluide est constitué par un premier tube soudé (2) sur le fond, et en ce qu'un deuxième tube (4), coaxial au premier et de plus grand diamètre, est soudé sur un épaulement extérieur (28) de la paroi de la chambre, cet épaulement étant plus proche de la face extérieure du nez que les orifices (24) d'arrivée du premier fluide, ledit premier fluide parvenant à ces orifices en passant à travers l'espace annulaire compris entre le premier et le deuxième tube.
- Brûleur selon la revendication 6, caractérisé en ce qu'il comprend une double paroi parcourue par un fluide de refroidissement, ce fluide refroidissant non seulement le nez mais encore ledit épaulement (28) de la paroi de la chambre.
- Brûleur selon l'une des revendications 1 à 7, caractérisé en ce que les tubes (26) sont fixés au nez par sertissage.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9415412 | 1994-12-21 | ||
FR9415412A FR2728655B1 (fr) | 1994-12-21 | 1994-12-21 | Bruleur du type a melange externe |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0718552A1 EP0718552A1 (fr) | 1996-06-26 |
EP0718552B1 true EP0718552B1 (fr) | 1999-07-28 |
Family
ID=9470063
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95402760A Expired - Lifetime EP0718552B1 (fr) | 1994-12-21 | 1995-12-07 | Brûleur du type à mélange externe |
Country Status (5)
Country | Link |
---|---|
US (1) | US5615833A (fr) |
EP (1) | EP0718552B1 (fr) |
DE (1) | DE69511054T2 (fr) |
ES (1) | ES2136263T3 (fr) |
FR (1) | FR2728655B1 (fr) |
Families Citing this family (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6149075A (en) * | 1999-09-07 | 2000-11-21 | General Electric Company | Methods and apparatus for shielding heat from a fuel nozzle stem of fuel nozzle |
US6363724B1 (en) * | 2000-08-31 | 2002-04-02 | General Electric Company | Gas only nozzle fuel tip |
FR2816037B1 (fr) * | 2000-11-02 | 2003-01-03 | Air Liquide | Bruleur et procede d'oxydation partielle d'un flux de gaz comprenant du sulfure d'hydrogene et le l'ammoniac |
GB2423353A (en) * | 2005-02-19 | 2006-08-23 | Siemens Ind Turbomachinery Ltd | A Fuel Injector Cooling Arrangement |
US7648085B2 (en) * | 2006-02-22 | 2010-01-19 | Rain Bird Corporation | Drip emitter |
CN101363624B (zh) * | 2007-08-06 | 2011-05-25 | 国际壳牌研究有限公司 | 燃烧器 |
CN101363626B (zh) | 2007-08-06 | 2015-05-20 | 国际壳牌研究有限公司 | 制造燃烧器前脸的方法 |
US8628032B2 (en) | 2008-12-31 | 2014-01-14 | Rain Bird Corporation | Low flow irrigation emitter |
US9877440B2 (en) | 2012-03-26 | 2018-01-30 | Rain Bird Corporation | Elastomeric emitter and methods relating to same |
US10440903B2 (en) | 2012-03-26 | 2019-10-15 | Rain Bird Corporation | Drip line emitter and methods relating to same |
US20130248622A1 (en) | 2012-03-26 | 2013-09-26 | Jae Yung Kim | Drip line and emitter and methods relating to same |
US9485923B2 (en) | 2012-03-26 | 2016-11-08 | Rain Bird Corporation | Elastomeric emitter and methods relating to same |
US9872444B2 (en) | 2013-03-15 | 2018-01-23 | Rain Bird Corporation | Drip emitter |
US10285342B2 (en) | 2013-08-12 | 2019-05-14 | Rain Bird Corporation | Elastomeric emitter and methods relating to same |
US10631473B2 (en) | 2013-08-12 | 2020-04-28 | Rain Bird Corporation | Elastomeric emitter and methods relating to same |
USD811179S1 (en) | 2013-08-12 | 2018-02-27 | Rain Bird Corporation | Emitter part |
US9883640B2 (en) | 2013-10-22 | 2018-02-06 | Rain Bird Corporation | Methods and apparatus for transporting elastomeric emitters and/or manufacturing drip lines |
US9494174B2 (en) * | 2014-03-07 | 2016-11-15 | General Electric Company | Fluidic buffer volume device with reduced mixedness |
US10330559B2 (en) | 2014-09-11 | 2019-06-25 | Rain Bird Corporation | Methods and apparatus for checking emitter bonds in an irrigation drip line |
US10375904B2 (en) | 2016-07-18 | 2019-08-13 | Rain Bird Corporation | Emitter locating system and related methods |
WO2018140772A1 (fr) | 2017-01-27 | 2018-08-02 | Rain Bird Corporation | Éléments de compensation de pression, émetteurs, canalisation de goutte-à-goutte et procédés associés |
US10626998B2 (en) | 2017-05-15 | 2020-04-21 | Rain Bird Corporation | Drip emitter with check valve |
USD883048S1 (en) | 2017-12-12 | 2020-05-05 | Rain Bird Corporation | Emitter part |
US11985924B2 (en) | 2018-06-11 | 2024-05-21 | Rain Bird Corporation | Emitter outlet, emitter, drip line and methods relating to same |
GB2607736A (en) | 2021-06-08 | 2022-12-14 | Hydrogen Tech Llc | Burner assemblies and methods |
CN117928220B (zh) * | 2024-03-19 | 2024-05-24 | 淄博煜鼎新材料科技有限公司 | 一种赤泥基陶瓷产品烧结辊道窑炉 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3480376A (en) * | 1968-06-24 | 1969-11-25 | United States Steel Corp | Burner for pre-heating a refractory lined vessel |
US3545903A (en) * | 1969-03-12 | 1970-12-08 | United States Steel Corp | Burner for preheating a refractory lined vessel |
US3685740A (en) * | 1969-10-29 | 1972-08-22 | Air Reduction | Rocket burner with flame pattern control |
EP0069245A3 (fr) * | 1981-07-03 | 1983-11-16 | Messer Griesheim Gmbh | Brûleur à gaz et oxygène sans prémélange |
GB8530154D0 (en) * | 1985-12-06 | 1986-01-15 | Nordsea Gas Technology Ltd | Burner |
CS551787A1 (en) * | 1986-11-18 | 1989-05-12 | Schingnitz Manfred | Gas burner |
US5161379A (en) * | 1991-12-23 | 1992-11-10 | United Technologies Corporation | Combustor injector face plate cooling scheme |
-
1994
- 1994-12-21 FR FR9415412A patent/FR2728655B1/fr not_active Expired - Fee Related
-
1995
- 1995-12-07 DE DE69511054T patent/DE69511054T2/de not_active Expired - Fee Related
- 1995-12-07 EP EP95402760A patent/EP0718552B1/fr not_active Expired - Lifetime
- 1995-12-07 ES ES95402760T patent/ES2136263T3/es not_active Expired - Lifetime
- 1995-12-20 US US08/575,753 patent/US5615833A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US5615833A (en) | 1997-04-01 |
EP0718552A1 (fr) | 1996-06-26 |
FR2728655A1 (fr) | 1996-06-28 |
ES2136263T3 (es) | 1999-11-16 |
FR2728655B1 (fr) | 1997-01-24 |
DE69511054T2 (de) | 2000-01-27 |
DE69511054D1 (de) | 1999-09-02 |
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