EP2564119B1 - Mehrflammenbrenner mit flammenweitergabe - Google Patents

Mehrflammenbrenner mit flammenweitergabe Download PDF

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Publication number
EP2564119B1
EP2564119B1 EP11703445.4A EP11703445A EP2564119B1 EP 2564119 B1 EP2564119 B1 EP 2564119B1 EP 11703445 A EP11703445 A EP 11703445A EP 2564119 B1 EP2564119 B1 EP 2564119B1
Authority
EP
European Patent Office
Prior art keywords
burner
flame
nozzle
nozzles
fuel gas
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.)
Active
Application number
EP11703445.4A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2564119A1 (de
Inventor
Anton Imgrundt
Johann Stocker
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.)
Linde GmbH
Original Assignee
Linde GmbH
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 Linde GmbH filed Critical Linde GmbH
Priority to PL11703445T priority Critical patent/PL2564119T3/pl
Publication of EP2564119A1 publication Critical patent/EP2564119A1/de
Application granted granted Critical
Publication of EP2564119B1 publication Critical patent/EP2564119B1/de
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Anticipated expiration legal-status Critical

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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
    • F23D14/26—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid with provision for a retention flame
    • 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, e.g. noise reduction means
    • 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, e.g. noise reduction means
    • F23D14/48—Nozzles
    • F23D14/56—Nozzles for spreading the flame over an area, e.g. for desurfacing of solid material, for surface hardening, or for heating workpieces
    • 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, e.g. noise reduction means
    • F23D14/48—Nozzles
    • F23D14/58—Nozzles characterised by the shape or arrangement of the outlet or outlets from the nozzle, e.g. of annular configuration
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23Q—IGNITION; EXTINGUISHING-DEVICES
    • F23Q3/00—Igniters using electrically-produced sparks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23Q—IGNITION; EXTINGUISHING-DEVICES
    • F23Q9/00—Pilot flame igniters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2207/00—Ignition devices associated with burner
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2900/00—Special features of, or arrangements for burners using fluid fuels or solid fuels suspended in a carrier gas
    • F23D2900/14—Special features of gas burners
    • F23D2900/14003—Special features of gas burners with more than one nozzle

Definitions

  • the present invention relates to a multi-flame burner with Brenngasbeaufschlagbaren burner nozzles, in particular for thermal material processing methods, a Brenngasbeaufschlagbare burner nozzle of such a multi-flame burner, and a method for thermal material processing, in which such a multi-flame burner is used.
  • multi-flame burners according to the invention can also be advantageously used in other fields of application.
  • the present invention can be used for flame brazing, fusion bonding, for example, flame spray coating, hot forming, and flame hardening. This may also be in particular methods for preheating, reheating, soaking and hot forming, for example in mechanical engineering, steel and container construction, act. Also, for example, for drying, especially for drying before sandblasting, welding or signing, the invention can be used.
  • flame heating according to DIN 8522 is a process in which a workpiece is heated to change its properties, such as to affect the resistance to deformation.
  • Flame heating is also used for preheating in welding, cutting and related metalworking processes.
  • sheets of more than 30 mm thickness made of S355 steel are preheated to 89 to 128 ° C immediately before cutting.
  • temperatures of up to 200 ° C are used in welding processes and temperatures between 100 and 400 ° C for alloyed steels.
  • flame blasting for example with acetylene
  • a burner nozzle assembly is directed onto a workpiece surface.
  • clean sheet surfaces for further processing can be achieved and remove rust, mill scale and scale layers easily and inexpensively.
  • flame spraying can be used to thermally treat concrete and natural stone surfaces in order, for example, to remove paints, coatings, oil spills or rubber abrasion and to create surfaces.
  • Acetylene burners are often used in the applications presented. Compared to other fuel gases, acetylene has an extremely high flame temperature of more than 3,000 ° C., which can be attributed inter alia to the positive formation enthalpy of the acetylene molecule (C 2 H 2 ). Per kilogram of acetylene 8,714 kJ are released for thermal utilization. These properties of acetylene are therefore of particular interest in thermal heat processes, since the heat is all the faster the flame passes to the workpiece, the higher the temperature of the combustion flame. Other advantages of acetylene include the high ignition speed. The thermal efficiency is better in the said method, the faster the hot combustion products impinge on the workpiece. This requirement arises in particular when heating metallic materials with high heat dissipation, for example in steel, copper and aluminum.
  • FIGS. 1A to 1C Such multi-flame burners are shown.
  • Figure 1A shows a standard hand torch
  • FIG. 1B is a so-called ingot burner
  • Figure 1C a lance burner shown.
  • the illustrated burners have as common features a fuel gas supply 1, via which, for example, a gas mixture of acetylene and oxygen is supplied.
  • a Gas At a Gas Installations- and holding device or a burner body 2 burner nozzles 3 are attached. By igniting the burner nozzles 3 in the case of fuel gas flowing out, working flames 4 are formed.
  • the burner nozzles may have regulating and / or adjusting devices 5.
  • Another Mehrflammenbumble according to the preamble of claim 1 discloses the DE 18 15 004 A1 ,
  • all individual nozzles Before using a suitable burner, all individual nozzles, for example with pilot lights or spark plugs, must be ignited manually or automatically.
  • a pilot flame is guided along the burner nozzles or it is ensured by means of a dynamic pressure that a flame is formed at all burner nozzles.
  • the burner is close to a correspondingly large plate hold.
  • the operator of a corresponding facility has to ensure that a flame is formed at all burner nozzles (the mixture outlet points).
  • manual ignition of a visual inspection of the ignition process is possible, this option is not always given in the automated operation of a corresponding burner, which usually also an automatic ignition takes place.
  • the so-called "burning through" of all flames often causes difficulties. For example, if the torch is not aligned with a workpiece or the geometry of the workpiece is inappropriate or the distance between the torch nozzles is too great, the tendency to bleed will be degraded.
  • flashover is understood to mean the passing on of a pilot flame or burner flame from one burner nozzle to the next.
  • the other burner nozzles then ignite successively at the first burner nozzle, so they ignite.
  • the invention proposes a multi-flame burner with Brenngasbeaufschlagbaren burner nozzles, in particular for thermal material processing methods, a brenngasbeetzbergerbare Burner nozzle for such a multi-flame burner, and a method for thermal material processing with the features of the respective independent claims before.
  • fuel gas means pure fuel gases, for example acetylene, methane, ethane, propane, butane, ethene, methylacetylene or hydrogen, but also any suitable gas mixtures and also mixtures containing oxygen and fuel gas, such as fuel gas. Oxygen / compressed air / suction air mixtures, understood.
  • At least one of the burner nozzles of a multi-flame burner has two, three or more auxiliary nozzle openings arranged linearly laterally of a main nozzle arrangement for generating a working flame.
  • the secondary nozzle opening is traversed by the same fuel gas as the main nozzle opening and is advantageously in fluid communication with this and a fuel gas supply.
  • auxiliary nozzle opening occurs after ignition to form at least one secondary flame, the orientation of which has a direction component (vector component) in the direction of the adjacent combustion nozzle, which is thus suitably aligned in the direction of a working or secondary flame of an adjacent burner nozzle .
  • the passing of a flame between individual burner nozzles of a Multi-flame burner can be significantly improved.
  • a complete ignition of all the flames of a multi-flame burner can be achieved safely and reliably, provided that the burner head distance and the fuel gas quantity and / or composition (for example, an acetylene burner) are in the functional range.
  • the measures according to the invention no longer require that the burner be aligned directly with a workpiece. The risk of escape of unburnt fuel gases due to non-combusted burner and the resulting risk of explosion is reduced or eliminated.
  • working flame is understood to mean the respective main flame of a burner nozzle of a multi-flame burner, which is directed onto a workpiece and serves, for example, for heating this workpiece.
  • the working flame is usually generated either by a single nozzle, or by a main nozzle assembly in which a central nozzle is surrounded by annularly arranged around these other nozzles. If, instead of a main nozzle arrangement, a single nozzle is provided, this is included in the scope of the application by the term “main nozzle arrangement”.
  • an "auxiliary flame” is the flame provided according to the invention, caused by the provision of at least two auxiliary nozzle openings, and at least partially aligned with an adjacent nozzle.
  • the sub-flames are smaller than the main flames due to lower gas volumes flowing through the sub-nozzle openings.
  • a "working flame” and an “auxiliary flame” may also be flame areas of a corresponding overall flame.
  • the primary flames which are respectively generated at the main and secondary nozzle openings, for example an acetylene fuel nozzle, are at least partially visually distinct from each other.
  • the so-called scattered flame forming around a primary flame usually envelops the primary flame in the form of an overall flame.
  • At least two auxiliary nozzle openings and / or at least one nozzle channel assigned to a corresponding auxiliary nozzle opening can be arranged at an angle to the main nozzle arrangement and / or a nozzle channel associated therewith.
  • At least one of the burner nozzles is provided with auxiliary nozzle openings for generating secondary flames in the direction of at least two adjacent burner nozzles.
  • a secondary jet opening through which fuel gas flows can, after being ignited, pass on a flame directly to an adjacent, not yet ignited, but fuel gas flow-through secondary jet opening.
  • the adjacent burner nozzle is ignited altogether and, in turn, due to the arrangement of the auxiliary nozzle openings, can pass on the flame to at least one further burner nozzle, thus igniting a burner arrangement.
  • a multi-flame burner of the type according to the invention has two, three or more secondary nozzle openings on at least one side of the main nozzle arrangement.
  • overall a suitable configuration or cross-sectional geometry of a burner flame and corresponding secondary flames can be effected.
  • Such a cross-sectional geometry can be adjusted selectively, for example based on a distance between individual burners and / or the type or pressure of a used fuel gas, so that a particularly effective transfer of burner flames is made possible.
  • a multi-flame burner according to the invention is set up such that at least one of the burners serves to ignite at least one adjacent burner nozzle via at least two secondary flames.
  • This can be achieved for example by suitable alignment of the auxiliary nozzle openings, their geometry, but also by suitable spacing of the burner nozzles. Due to the special design of the burner nozzles with sub-flames, it is only necessary for igniting a burner arrangement to ignite a burner, for example automatically, in one place, wherein a secure ignition of the entire burner is ensured.
  • a multi-flame burner according to the invention is designed as a hand torch or machine torch, for example as a strip burner or lance burner, for operation with acetylene as the fuel gas.
  • lance and inguinal burner with linear Burner arrangement profit due to their tendency to tend to für für Mikroneist especially of the measures according to the invention.
  • a multi-flame burner of the type described has at least one burner nozzle, a manual ignition device, a pilot flame, a spark plug or a piezo igniter for ignition, whereby the multi-flame burner is particularly suitable for automatic applications with non-manual ignition.
  • Brenngasbeetzschlagbaren burner nozzle is expressly made to the features of the previously explained multi-flame burner.
  • such Brenngasbeetzschlagbare burner nozzle is formed interchangeable, so that can be exchanged individual nozzles combine in a burner body to form a multi-flame burner and thereby the flame propagation can be optimized.
  • Also to the advantages and advantageous areas of application of the method according to the invention is made to the previously described features.
  • FIGS. 1A to 1C show, as explained above, multi-flame burner according to the prior art.
  • FIG. 2 shows, denoted overall by 10, a burner nozzle according to an embodiment of the invention Invention, which can be used for example in a multi-flame burner according to the invention.
  • the burner nozzle 10 has a burner nozzle head 20 and a burner nozzle foot 21. If the burner nozzle 10 is an exchangeable nozzle, it can be fastened to the burner nozzle foot 21 in a burner base body.
  • a main nozzle assembly 30 is provided, which has a main nozzle opening and this circularly surrounding further nozzle openings.
  • the main nozzle assembly 30 is, as previously explained, configured to form a working flame.
  • the burner nozzle 10 for generating secondary flames in addition to the main nozzle assembly 30 provided on the auxiliary nozzle openings 40.
  • the auxiliary nozzle openings 40 themselves, or their corresponding nozzle channels, can be offset angularly from the orientation of the main nozzle arrangement 30, so that a targeted alignment of the secondary flames in the direction of adjacent burner nozzles or their flames can be achieved.
  • FIG. 3 a total of 4 burner nozzles 11, 12, 13 and 14 are shown according to a particularly preferred embodiment of the invention in plan view.
  • the burner nozzles 11, 13 and 14 correspond to the burner nozzle 10 in the configuration and arrangement of the auxiliary nozzle openings 40 FIG. 2 .
  • the burner nozzle 12 has further, in the figure vertically downwardly facing auxiliary nozzle openings 41, which are aligned in the direction of a right angle to the row of burner nozzles 11, 12 and 13 arranged burner nozzle 14.
  • auxiliary nozzle openings 41 which are aligned in the direction of a right angle to the row of burner nozzles 11, 12 and 13 arranged burner nozzle 14.
  • a flame-through or a flame propagation as illustrated by the arrows 50, between the individual burner nozzles 11, 12, 13 and 14, achieve.
  • the illustrated burner nozzles 11, 12, 13 and 14 may be part of a multi-flame burner or a burner field of a multi-flame burner. It is understood that the configuration shown in Figure 3 is arbitrarily expandable and when providing additional auxiliary nozzle openings 40, 41 and a secure ignition ignition 50 can be effected in additional directions.
  • FIG. 4 a corresponding burner nozzle assembly is shown schematically in operation.
  • a fuel gas passes out of the burners 15 via a main nozzle arrangement and side-nozzle openings 40 arranged laterally therefrom. This results in the formation of a main flame or working flame 60, which can be aligned with a workpiece.
  • the primary flame of this working flame is indicated at 70.
  • Sub-flames 80 shown with corresponding primary flames 90.
  • the secondary flames 80 are at least partially aligned in the direction of adjacent nozzles, resulting in said particularly advantageous ignition.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gas Burners (AREA)
EP11703445.4A 2010-04-29 2011-02-10 Mehrflammenbrenner mit flammenweitergabe Active EP2564119B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL11703445T PL2564119T3 (pl) 2010-04-29 2011-02-10 Palnik wielopłomieniowy z dalszym przekazywaniem płomieni

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010028396A DE102010028396A1 (de) 2010-04-29 2010-04-29 Mehrflammenbrenner mit Flammenweitergabe
PCT/EP2011/051942 WO2011134687A1 (de) 2010-04-29 2011-02-10 Mehrflammenbrenner mit flammenweitergabe

Publications (2)

Publication Number Publication Date
EP2564119A1 EP2564119A1 (de) 2013-03-06
EP2564119B1 true EP2564119B1 (de) 2014-03-26

Family

ID=44585021

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11703445.4A Active EP2564119B1 (de) 2010-04-29 2011-02-10 Mehrflammenbrenner mit flammenweitergabe

Country Status (14)

Country Link
US (1) US20130288187A1 (ru)
EP (1) EP2564119B1 (ru)
AU (1) AU2011247287B2 (ru)
BR (1) BR112012027311B1 (ru)
CA (1) CA2797467C (ru)
DE (1) DE102010028396A1 (ru)
DK (1) DK2564119T3 (ru)
ES (1) ES2472947T3 (ru)
MY (1) MY165929A (ru)
PL (1) PL2564119T3 (ru)
RU (1) RU2563462C2 (ru)
UA (1) UA110032C2 (ru)
WO (1) WO2011134687A1 (ru)
ZA (1) ZA201208042B (ru)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10480823B2 (en) * 2013-11-14 2019-11-19 Lennox Industries Inc. Multi-burner head assembly
US10767859B2 (en) 2014-08-19 2020-09-08 Adler Hot Oil Service, LLC Wellhead gas heater
US10138711B2 (en) * 2014-08-19 2018-11-27 Adler Hot Oil Service, LLC Wellhead gas heater
US10323200B2 (en) 2016-04-12 2019-06-18 Enservco Corporation System and method for providing separation of natural gas from oil and gas well fluids
IL258286B (en) * 2017-05-03 2021-06-30 Kopolovich Haim Hanukiah
US10712014B2 (en) * 2018-02-21 2020-07-14 Earthcore Industries, Llc Modular linear fireplace gas burner system

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2125915A (en) * 1934-02-27 1938-08-09 Union Carbide & Carbon Corp Blowpipe nozzle
US2518544A (en) * 1947-11-15 1950-08-15 Linde Air Prod Co Multiflame heating head
SU116920A1 (ru) * 1958-03-10 1958-11-30 дважды Ордена Ленина и Ордена Трудового Красного знамени автозавод им. Лихачева Московский (Тепловая лаборатория) Многосоплова инжекционна горелка
DE1529195A1 (de) * 1966-01-29 1969-12-04 Lajos Alfoeldi Gas/Luft-Gemischbrenner
GB1238484A (ru) * 1968-04-16 1971-07-07
DE1815004C3 (de) * 1968-12-17 1974-07-04 Bahlsen, Werner, 3000 Hannover Industriegasbrenner mit reihenweise angeordneten Brennerdüsen
DE2035563C3 (de) * 1970-07-17 1975-03-27 Walter 7000 Stuttgart Dreizler Brennerkopf für einen Vormischgasbrenner
AT398822B (de) * 1993-01-25 1995-02-27 Vaillant Gmbh Brenner
US5318439A (en) * 1993-02-03 1994-06-07 Robertshaw Controls Company Jet burner construction heating apparatus utilizing the jet burner construction and methods of making the same
DE29718409U1 (de) * 1997-10-16 1997-12-18 Ebertz, Uwe, 35764 Sinn Rohr-Lochbrenner, insbesondere für gasbeheizte Gar- und Grillgeräte
US6394792B1 (en) * 1999-03-11 2002-05-28 Zeeco, Inc. Low NoX burner apparatus
RU2355948C2 (ru) * 2007-05-07 2009-05-20 Общество с ограниченной ответственностью Финансово-промышленная компания "Космос-Нефть-Газ" Факельная горелка
EP2136140A1 (de) * 2008-06-20 2009-12-23 Linde AG Brennerkopf für hand- oder maschinengeführte Brennervorrichtungen

Also Published As

Publication number Publication date
DK2564119T3 (da) 2014-06-30
PL2564119T3 (pl) 2014-08-29
CA2797467A1 (en) 2011-11-03
BR112012027311B1 (pt) 2020-11-17
ZA201208042B (en) 2013-06-26
CA2797467C (en) 2018-06-12
ES2472947T3 (es) 2014-07-03
MY165929A (en) 2018-05-18
BR112012027311A2 (pt) 2016-08-02
EP2564119A1 (de) 2013-03-06
RU2012150999A (ru) 2014-06-10
WO2011134687A1 (de) 2011-11-03
US20130288187A1 (en) 2013-10-31
DE102010028396A1 (de) 2011-11-03
UA110032C2 (xx) 2015-11-10
RU2563462C2 (ru) 2015-09-20
AU2011247287B2 (en) 2015-02-12

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