EP1058052A1 - Brenner für flüssige Brennstoffe mit niedriger NOx- und Staubemission und Düse dafür - Google Patents
Brenner für flüssige Brennstoffe mit niedriger NOx- und Staubemission und Düse dafür Download PDFInfo
- Publication number
- EP1058052A1 EP1058052A1 EP00430024A EP00430024A EP1058052A1 EP 1058052 A1 EP1058052 A1 EP 1058052A1 EP 00430024 A EP00430024 A EP 00430024A EP 00430024 A EP00430024 A EP 00430024A EP 1058052 A1 EP1058052 A1 EP 1058052A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rod
- burner
- atomizer
- fuel
- nozzle
- 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
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Classifications
-
- 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
- F23D11/10—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space the spraying being induced by a gaseous medium, e.g. water vapour
- F23D11/101—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space the spraying being induced by a gaseous medium, e.g. water vapour medium and fuel meeting before the burner outlet
- F23D11/102—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space the spraying being induced by a gaseous medium, e.g. water vapour medium and fuel meeting before the burner outlet in an internal mixing chamber
- F23D11/103—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space the spraying being induced by a gaseous medium, e.g. water vapour medium and fuel meeting before the burner outlet in an internal mixing chamber with means creating a swirl inside the mixing chamber
Definitions
- the present invention relates to burners with liquid fuel and low emission of NO x and dust, and atomizers (or sprayers) with liquid product for such burners.
- the technical field of the invention is that of the manufacture of industrial liquid fuel burners (oil and fuel oil in particular).
- patent FR 2641365 proposes a burner comprising a primary spray part which delimits an axial mixing chamber into which the liquid fuel is introduced axially and radially or tangentially an auxiliary fluid under pressure; bedroom has primary spray nozzles each having a exit from which a jet of atomized fuel emerges; the burner has in addition to a secondary spray piece that wraps the piece of primary spraying by delimiting with it an auxiliary chamber; the secondary part carries a plurality of secondary nozzles each of which is coaxial with a primary nozzle and has a diameter greater than the orifice of exit from it; the burner has means for injecting radially in the auxiliary chamber an auxiliary fluid under pressure sufficient for it to expand in the secondary nozzles, around the jets leaving the primary nozzles, with an axial speed greater than the speed the peripheral layers of the sprayed fuel jets.
- the burner head (or end) described in this document includes, in addition to the primary and secondary nozzle holder parts, several parts removable arranged between the nozzle holder parts and the body (of the cane) of the burner: an emulsifier defining a fuel mixing chamber and auxiliary fluid, which has passages (for auxiliary fluid) equipped with fins, as well as a diaphragm (or pellet) provided with an orifice central calibrated for the introduction of fuel into the mixture, and a fuel guiding part (sometimes called an atomizer) upstream of the diaphragm; these different pieces in the general shape of discs thick are "stacked" face to face and secured to the burner head by a cap which surrounds them, which is screwed onto the burner head and which has a shoulder leaning against the periphery of the nozzle holder part spray.
- the object of the present invention is to provide burners, in particular such as those described in patent FR 97/09594 (PILLARD), that are improved.
- An objective of the invention is to simplify the production of atomizers of liquid fuel, in particular those described in the patents FR 1305391 and FR 2641365, while keeping the functions unchanged and at least equal performance.
- An objective of the invention is to allow the optimization of the Atomizer / burner “couple”, thanks to improvements concerning including the design of atomizers and removable rods atomization of liquid fuel and so the burner bodies themselves, to allow easy control of the optimization of this "Couple”.
- the invention consists, according to a first aspect, in proposing a nozzle holder part capable of being removably mounted on a rod atomization of a liquid fuel burner, which comprises a connection in rotation with said rod, which member is preferably integrated to the structure of the nozzle-holder part to increase the solidity of the connection and make it possible to avoid any relative positioning defect in particular during frequent disassembly-reassembly operations for the maintenance.
- the angle of orientation (trigonometric with respect to the axis of the burner) of the fuel jets liquid produced by the nozzle holder part can be adjusted to match precisely at the angular position of the secondary air injection nozzles.
- This allows in particular, in particular in the case of the burners illustrated Figure 2 of EP 774620 and US 5,562,437, to adjust and control the angular offset between the fuel injection port liquid and the position of the secondary nozzle, and which depends on the direction of "Rotation" printed by the burner with combustion air; the invention therefore allows to control the angular position of the room in which the liquid fuel outlet ports are drilled so that the angle orientation of the liquid fuel injection cane can be adjusted precisely, on a case-by-case basis, to optimize combustion.
- the latter has a cylindrical wall (hollow tubular) of circular section, which delimits a cylindrical cavity, which is extended and / or partially closed at one end by a transverse veil (or wall) thick (in which (which) are pierced with holes forming the nozzles of fuel spray, and which is open at its second end: the latter is provided with a notch (or cutout) extending over a part of its circumference, for example half of it; this part end thus forms the connecting member in rotation, engaging with a small clearance in a cavity or depression of complementary geometry formed at the end of the rod receiving this removable nozzle holder piece.
- Said cavity delimited by the cylindrical body of the nozzle-holder part can accommodate the other removable mounted parts on the rod of the burner which are used to form a jet of fuel, to mix it with the fluid auxiliary, as well as transporting and guiding the fluid and the fuel to the nozzles.
- the removable attachment of the nozzle holder part to the rod can be carried out, as in patent FR 2641365, using a threaded sleeve (or nut) which surrounds the nozzle holder part while resting on the periphery of its front face, which is screwed to the (threaded) end of the rod of the burner.
- said end of the nozzle holder part (or multi-nozzle) integrating the rotating connecting member further comprises a connecting member in longitudinal translation adapted to cooperate with a complementary member provided at the end of the cane; this provision facilitates assembly and disassembly by allowing hanging (and / or hang) - cantilevered at the end of the rod - the nozzle holder part and the removable parts it contains, the common longitudinal axis of the rod and the nozzle-holder part being kept substantially horizontal; this allows the sleeve to be engaged around the multi-nozzle part without the hold, however it remains perfectly aligned and pressed against the end of the cane during this operation; preferably the organ of longitudinal connection and integrated into the multi-nozzle part and is presented under the shape of a projection - such as a rib - provided on the internal face of the uncut part of said second end, which extends over a part of its circumference; the two integrated connecting members form thus a kind of hook capable of engaging in a circumferential groove corresponding provided at the end
- the invention consists in proposing a removable atomizer for fuel spray burner rod liquid, which has a longitudinal central opening (calibrated) for the fuel passage and several longitudinal peripheral orifices (for the passage of an auxiliary spraying fluid) leading to each end in an annular groove respectively provided on each face of the atomizer, each of said faces having grooves substantially radial;
- the atomizer monobloc, further comprises on a face - called rear face - a depression surrounding said central orifice and into which tangential channels open, so that when the atomizer is mounted between the end of the cane and a nozzle holder part (removable) by a sleeve-shaped fastener, the vacuum forms with the end of the rod an upstream rotation chamber fuel transported through these channels;
- the atomizer can if necessary have a second depression capable of delimiting with the nozzle holder part a mixing (emulsion) chamber;
- the atomizer features on a second face - called front face - of the radial or
- the invention consists in proposing a part removable monobloc for liquid fuel burner rod, which includes means (comprising tangential injection channels and a tapered hollow face) for guiding the fuel flow allowing the formation of a conical jet at the outlet of a central orifice, means (longitudinal channels) for passage through the part of a fluid auxiliary and means (radial or tangential channels) for guiding the fluid downstream of the central orifice and allowing the fluid to come into contact with the fuel jet.
- This one-piece piece can be accommodated easily thanks to its low thickness inside a housing (bore) provided in the nozzle holder part.
- Figure 1 is a sectional view through a diametrical plane of a atomizer according to the invention.
- Figures 2 and 3 are front views, respectively along II and according to III of the atomizer of Figure 1.
- Figure 4 illustrates in sectional view through a diametrical plane a alternative embodiment of an atomizer according to the invention, which is shown between the end of a cane and the nozzle holder part (partially shown) that surrounds it.
- Figures 5 and 10 illustrate in sectional view through a diametral plane the end of a cane fitted with an atomizer of figure 1 and a part multi-nozzle and a fixing sleeve; in figure 5 the parts are shown assembled while Figure 10 illustrates the separate parts and aligned.
- Figures 6 to 8 illustrate three alternative embodiments of the groove circumferential fitted to the rod for temporary attachment of the part nozzle holder.
- Figure 9 schematically illustrates in longitudinal section view a burner according to the invention equipped with sighting tubes for control visual of the orientation of the rod relative to the introduction orifices secondary air.
- the removable monobloc atomizer 1 comprises (FIGS. 1 to 3) the orifice 2 longitudinal center for the passage of fuel and several orifices 3 longitudinal devices for the passage of a spraying fluid; it further comprises on each face 6, 7 a depression 10, 11 surrounding said central orifice, and a curved section 12 which makes it possible to engage it in one piece nozzle holder housing without risk of jamming and promotes its tightening against the end of the rod without risk of occurrence mechanical stresses likely to deform it, and further facilitates its plating to form a tight connection.
- the central opening 2 is surrounded on a first face (rear) by a frustoconical surface 13 contributing to delimit the first depression 11, said first face 7 further comprising an annular groove 14 in which open the tangential grooves 9 of axis 9a, and comprising a annular rib 15 separating a groove 5 into which the orifices 3, of said groove 14 which it surrounds.
- the orifice 2 is surrounded on the front face 6 of the atomizer, with a flat surface 16 perpendicular to the axis 20 and a cylindrical surface 17 parallel to axis 20, these two surfaces contributing to delimit a depression 10 ( Figure 1).
- grooves or channels 8 of axis 8a radial (FIG. 3), or alternatively tangential in another configuration not shown, connect the peripheral annular groove 4 into which the 3 longitudinal FAA transport channels open out with a central zone 10 of the face 6, if necessary in depression, which surrounds hole 2.
- the part 19 removable nozzle holder (FIGS. 5 and 10) comprises several spray nozzles 22, and comprises a cylindrical housing 19a, with an axis 20, suitable for receiving the atomizer 1; the part 19 further comprises means indexing in rotation with the burner rod: for this purpose the end 19b open of the body is laminated or cut on a portion 19c of its circumference, so that the end portion is able to engage in a corresponding peripheral cutout 35 provided at the end of the rod 18 intended to receive the part 19, to form an angular stop.
- the end part has a rib 19d on its face internal circumference which is able to engage in a groove 36 circumferential provided at the end of the rod to form an organ attachment allowing the workpiece to be suspended from the rod before assembly by a sleeve 23 surrounding the part 19.
- the liquid fuel burner rod 42 illustrated in FIG. 5 includes an atomizer 1 housed in the longitudinal bore 19a provided in the piece 19 nozzle holder; a removable sleeve 23 screwed onto the fixed part 18, surrounds and fixes the nozzle holder part and the atomizer at the end 18 of the cane.
- the liquid fuel burner 41 illustrated in FIG. 9 has a cane 42 according to the invention and means allowing the rotation of the cane relative to the opening 40 along the longitudinal axis 20 of the rod, which means comprising deformable fittings (flexible, rotating or articulated) on the fuel and fluid supply lines spraying aid; these means are provided in the rear part 42a of cane 42.
- the rod extends through an opening 40 and is equipped with nozzles 22 spray;
- the burner has several orifices 51 for injection of air and includes means for visual control of the angular orientation relative nozzles (and / or corresponding flames) and orifices oxidizer injection; these means include sight tubes 43 extending parallel to the rod in the extension of the orifices 51, at through the opening, fitted at their rear end (external to the hearth) with sight 44 (or ocular).
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Nozzles For Spraying Of Liquid Fuel (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9907030 | 1999-05-31 | ||
| FR9907030A FR2794221B1 (fr) | 1999-05-31 | 1999-05-31 | PERFECTIONNEMENTS AUX BRULEURS A COMBUSTIBLE LIQUIDE A BASSE EMISSION DE NOx ET DE POUSSIERES, ET AUX ATOMISEURS |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1058052A1 true EP1058052A1 (de) | 2000-12-06 |
| EP1058052B1 EP1058052B1 (de) | 2004-05-19 |
Family
ID=9546346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP00430024A Expired - Lifetime EP1058052B1 (de) | 1999-05-31 | 2000-05-30 | Brenner für flüssige Brennstoffe mit niedriger NOx- und Staubemission und Düse dafür |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US6425755B1 (de) |
| EP (1) | EP1058052B1 (de) |
| DE (1) | DE60010798T2 (de) |
| ES (1) | ES2219285T3 (de) |
| FR (1) | FR2794221B1 (de) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002012792A1 (de) * | 2000-08-06 | 2002-02-14 | Webasto Thermosysteme International Gmbh | Zerstäuberbrenner |
| EP2314921A2 (de) | 2009-10-21 | 2011-04-27 | Fives Pillard | Verfahren zum Betrieb eines Heizkessels |
| FR3118135A1 (fr) * | 2020-12-21 | 2022-06-24 | Fives Pillard | Brûleur avec dispositif d’éjection de fluide amovible |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6790031B2 (en) | 2003-01-16 | 2004-09-14 | Rjm Corporation | Fuel staging methods for low NOx tangential fired boiler operation |
| US8100064B2 (en) * | 2005-01-31 | 2012-01-24 | Diesel & Combustion Technologies, Llc | Fuel staging methods for low NOx tangential fired boiler operation |
| US7735756B2 (en) * | 2006-04-12 | 2010-06-15 | Combustion Components Associates, Inc. | Advanced mechanical atomization for oil burners |
| JP4697090B2 (ja) * | 2006-08-11 | 2011-06-08 | Ｊｘ日鉱日石エネルギー株式会社 | 二流体噴霧バーナ |
| ES2603421T3 (es) * | 2008-09-16 | 2017-02-27 | Siemens Aktiengesellschaft | Quemador de gas |
| US8172566B2 (en) * | 2010-02-18 | 2012-05-08 | Air Products And Chemicals, Inc. | Liquid fuel combustion process and apparatus |
| US20120009531A1 (en) * | 2010-07-12 | 2012-01-12 | L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Distributed combustion process and burner |
| US8579213B2 (en) * | 2012-02-27 | 2013-11-12 | Delavan Inc. | Single circuit multiple spray cone pressure atomizers |
| JP6317631B2 (ja) * | 2014-06-12 | 2018-04-25 | 三菱日立パワーシステムズ株式会社 | 噴霧ノズル、噴霧ノズルを備えた燃焼装置、及びガスタービンプラント |
| FR3068113B1 (fr) * | 2017-06-27 | 2019-08-23 | Safran Helicopter Engines | Injecteur de carburant a jet plat pour une turbomachine d'aeronef |
| CN110953394B (zh) * | 2019-10-14 | 2022-07-29 | 中国北方发动机研究所(天津) | 一种燃烧室喷嘴电磁阀 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2641365A1 (fr) * | 1988-12-30 | 1990-07-06 | Pillard Chauffage | Procedes et dispositifs pour pulveriser finement un combustible liquide et bruleurs equipes de ces dispositifs |
| EP0435735A1 (de) * | 1989-12-28 | 1991-07-03 | Institut Français du Pétrole | Industriebrenner für flüssige Brennstoffe mit niedrigen Stickstoffoxidemissionen zum Erzeugen von mehreren elementaren Flammen und seine Anwendung |
| US5622489A (en) * | 1995-04-13 | 1997-04-22 | Monro; Richard J. | Fuel atomizer and apparatus and method for reducing NOx |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2323001A (en) * | 1939-06-08 | 1943-06-29 | Bargeboer Adolf | Liquid spraying device for liquid fuel burners |
| US3045932A (en) * | 1959-06-22 | 1962-07-24 | William F Steinen | Spray nozzle |
| FR1305391A (fr) | 1961-04-25 | 1962-10-05 | Pillard Chauffage | Perfectionnement aux brûleurs à mazout à pulvérisation par émulsion de combustible par la vapeur d'eau |
| US3477647A (en) * | 1967-02-20 | 1969-11-11 | Gen Motors Corp | Fuel spray nozzle |
| DE2007342B2 (de) * | 1970-02-18 | 1973-03-15 | Danfoss A/S, Nordborg (Dänemark) | Zerstaeubungsduese, insbesondere fuer oelbrenner |
| US3968931A (en) * | 1975-10-06 | 1976-07-13 | Combustion Engineering, Inc. | Pressure jet atomizer |
| DE3706234A1 (de) * | 1987-02-26 | 1988-09-08 | Sonvico Ag Ing Bureau | Brenner zum verbrennen von fluessigen oder gasfoermigen brennstoffen |
| US4819878A (en) * | 1987-07-14 | 1989-04-11 | The Babcock & Wilcox Company | Dual fluid atomizer |
| FR2706985B1 (de) | 1993-06-22 | 1995-08-25 | Pillard Ent Gle Chauffage Indl | |
| GB9510454D0 (en) | 1995-05-24 | 1995-07-19 | City Tech | Electrochemical gas sensor assembly |
| DE69521707T2 (de) | 1995-11-14 | 2002-05-08 | Entreprise Generale De Chauffage Industriel Pillard, Marseille | Brenner für flüssigen oder gasförmigen Brennstoff mit sehr niedriger Stickoxidemission |
| GB9616442D0 (en) * | 1996-08-05 | 1996-09-25 | Boc Group Plc | Oxygen-fuel burner |
| IL123364A (en) | 1997-02-20 | 2003-07-06 | Advantest Corp | Hologram observation method for three-dimensional wave source distribution, and stereoscopic directivity estimation method of antenna and wave distribution observation method based on hologram observation |
| JPH10311511A (ja) * | 1997-05-14 | 1998-11-24 | Sanyo Electric Co Ltd | ノズル固定装置 |
| US6059566A (en) * | 1997-07-25 | 2000-05-09 | Maxon Corporation | Burner apparatus |
-
1999
- 1999-05-31 FR FR9907030A patent/FR2794221B1/fr not_active Expired - Fee Related
-
2000
- 2000-05-30 DE DE60010798T patent/DE60010798T2/de not_active Expired - Lifetime
- 2000-05-30 ES ES00430024T patent/ES2219285T3/es not_active Expired - Lifetime
- 2000-05-30 EP EP00430024A patent/EP1058052B1/de not_active Expired - Lifetime
- 2000-05-31 US US09/583,253 patent/US6425755B1/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2641365A1 (fr) * | 1988-12-30 | 1990-07-06 | Pillard Chauffage | Procedes et dispositifs pour pulveriser finement un combustible liquide et bruleurs equipes de ces dispositifs |
| EP0435735A1 (de) * | 1989-12-28 | 1991-07-03 | Institut Français du Pétrole | Industriebrenner für flüssige Brennstoffe mit niedrigen Stickstoffoxidemissionen zum Erzeugen von mehreren elementaren Flammen und seine Anwendung |
| US5622489A (en) * | 1995-04-13 | 1997-04-22 | Monro; Richard J. | Fuel atomizer and apparatus and method for reducing NOx |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002012792A1 (de) * | 2000-08-06 | 2002-02-14 | Webasto Thermosysteme International Gmbh | Zerstäuberbrenner |
| KR100771965B1 (ko) | 2000-08-06 | 2007-11-01 | 베바스토 써모시스테메 인터내셔널 게엠베하 | 분무 버너 |
| EP2314921A2 (de) | 2009-10-21 | 2011-04-27 | Fives Pillard | Verfahren zum Betrieb eines Heizkessels |
| FR3118135A1 (fr) * | 2020-12-21 | 2022-06-24 | Fives Pillard | Brûleur avec dispositif d’éjection de fluide amovible |
| WO2022136296A1 (fr) * | 2020-12-21 | 2022-06-30 | Fives Pillard | Brûleur avec dispositif d'éjection de fluide amovible |
Also Published As
| Publication number | Publication date |
|---|---|
| DE60010798D1 (de) | 2004-06-24 |
| ES2219285T3 (es) | 2004-12-01 |
| FR2794221A1 (fr) | 2000-12-01 |
| EP1058052B1 (de) | 2004-05-19 |
| US6425755B1 (en) | 2002-07-30 |
| DE60010798T2 (de) | 2005-06-09 |
| FR2794221B1 (fr) | 2001-08-24 |
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