EP0114610A1 - Brûleur à combustion stoechiométrique de combustible liquide ou gazeux - Google Patents
Brûleur à combustion stoechiométrique de combustible liquide ou gazeux Download PDFInfo
- Publication number
- EP0114610A1 EP0114610A1 EP84100182A EP84100182A EP0114610A1 EP 0114610 A1 EP0114610 A1 EP 0114610A1 EP 84100182 A EP84100182 A EP 84100182A EP 84100182 A EP84100182 A EP 84100182A EP 0114610 A1 EP0114610 A1 EP 0114610A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- thickening
- flame tube
- burner according
- combustion
- 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.)
- Granted
Links
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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
- F23D11/36—Details
- F23D11/40—Mixing tubes; Burner heads
- F23D11/404—Flame tubes
Definitions
- the invention relates to a burner for the stoichiometric combustion of liquid or gaseous fuels, which consists of a fuel line provided with an atomizer nozzle and a supply line surrounding it for the combustion air to be supplied to the atomizer nozzle by a fan or the like.
- Burners of this type are known in numerous different configurations. In order to enable combustion under stroichiometric conditions and thus without soot being formed, it is also known to improve the recirculation of the hot combustion gases by means of various devices and / or internals assigned to the burner. Here, by means of ring elements, which together with other parts of the burner form an injector, a recirculating Flow of hot gases generated. Although the construction effort is sometimes considerable, perfect combustion is not always guaranteed in all load ranges. The burner is dependent on the particular boiler design and the flame burns into the boiler, so that combustion under stoichiometric conditions is often not possible. In addition, the operating noise encountered with these burners is significant.
- the construction effort required for this should be extremely low, so that there is also economical production, but above all the burner should be fully functional immediately after start-up and be controllable in a large area without the combustion being adversely affected and coking occurring.
- the operating noise should be kept low and it should be possible to convert existing systems in a corresponding manner without difficulty.
- a flame tube which forms the combustion chamber and is made of a material with a high heat storage capacity, is connected to the air supply line, the end of which faces the air supply tube has an inlet opening provided with a throttle and at the opposite end of which an insert is inserted into it and with a Variety of exit openings equipped closure plate is provided and that the atomizer nozzle is arranged in the region of the narrowest cross section of the throttle.
- the throttle by means of a thickening which is triangular in longitudinal section and which is provided on the inner edge of the flame tube and has mutually inclined inner circumferential surfaces each enclosing a truncated cone as part of the inlet opening, the two inner circumferential surfaces of the thickening in the abutting area should merge into one another via a fillet.
- the atomizing nozzle it protrudes into the flame tube in such a way that its outlet opening lies in the transition region of the inner jacket surfaces of the thickening determined by the rounding.
- the flow rate of the supplied combustion air is greatest in this area, so that the mixing with the fuel is particularly intensive.
- the atomizer nozzle can also be arranged in the throttle, adjustable in the axial direction.
- the thickening can be easily molded into the flame tube or inserted into it.
- the inclination angle of the side facing the air supply pipe inner surface area of the thickener should be sized larger to the longitudinal axis of the flame tube as the inclination angle of the side facing the combustion chamber inner casing surface, whereby the inclination angle should be about be from 35 to 55 0 and 25 ° to 45 °.
- the inner surface facing the combustion chamber should the thickening limited area correspond approximately 1 / 3-1 / 6 the length of the combustion chamber. In this way, favorable flow conditions are achieved in the inlet opening and in the combustion chamber.
- the throttle or the thickening forming it can also be provided with a cutout running parallel to the longitudinal axis of the flame tube for holding the ignition electrode of the burner, but it is also possible to arrange the ignition electrode between the nozzle and the throttle.
- the outlet openings incorporated in the closure plate of the flame tube are to be designed in a simple embodiment as bores arranged on concentric circles of holes, preferably with a circular cross section, the bores of a circle of holes each having the same inside diameter. If the closure plate is provided with bores of different diameters arranged on two bolt circles, the bores arranged on the inner bolt circle should be dimensioned smaller in their inner diameter than the bores arranged on the outer bolt circle.
- the closure plate should be insertable into the flame tube in the axial direction thereof.
- the closure plate in order to promote recirculation in the combustion chamber, it is appropriate for the closure plate to be conical on the side facing inwards, preferably in mirror image to the opposite inner wall of the thickening.
- the flame tube, the thickening and the sealing plate. can be economically manufactured in one piece from ceramic material, from refractory concrete or the like.
- the burner designed according to the invention for the stoichiometric combustion of liquid or gaseous fuels is not only simple to manufacture in terms of design and thus without difficulty, but the proposed design also enables, above all, always perfect combustion without the formation of soot and without coking occurs.
- a flame tube is connected to the air supply line, which consists of a material with a high heat storage capacity and whose inlet opening has a throttle, in the area of which the atomizer nozzle is arranged, and the opposite end of which is covered by a closure plate provided with a larger number of outlet openings, so the combustion air is fed directly to the atomizer nozzle at an extremely high speed and guided and deflected in the combustion chamber formed by the flame tube, so that recirculation takes place in it and complete combustion and thus complete combustion of the fuel takes place through the hot gases supplied to the atomized fuel .
- the throttle provided in the area of the atomizer nozzle greatly increases the flow velocity of the combustion air, the fuel emerging from the atomizer nozzle is entrained by it and evaporated in the interior of the flame tube by the recirculating hot gases and distributed evenly.
- the interior of the flame tube forms thus a closed combustion chamber, at the outlet openings of the dividing wall only flame peaks emerge together with the hot exhaust gases. Since the operating temperature is extremely high, there is also a high degree of efficiency.
- the thermal energy of the fuel converted by the combustion is released by the hot gases flowing off and by the radiation from the heated flame tube.
- a burner designed in this way is independent of the particular boiler construction and its combustion chamber, and the closure plate also acts as a silencer, so that it can be used almost anywhere.
- existing burners can be converted in a very simple manner, since only the correspondingly designed flame tube is to be connected to their air supply pipe. And since, due to the good recirculation of the hot gases in the combustion chamber, the combustion is complete immediately after the burner is switched on, it is immediately ready for operation.
- the burner designed according to the invention can be regulated over a wide range without structural changes having to be carried out and is therefore easily adaptable to the particular circumstances.
- the amount of combustion air and / or the fuel supplied, for example, by changing the pressure of the oil feed pump, can be done without difficulty. Versatile use with simple handling and trouble-free operation is therefore given, especially since a change in the chimney draft or the boiler pressure has almost no influence on the combustion.
- the configuration according to the invention thus makes it possible, since the recirculation of hot gases causes the fuel to be mixed and gasified well with the combustion air, for total, soot-free combustion and accordingly also for a high energy yield. And since there is no soot and no oil derivatives in the exhaust gas and the proportion of carbon monoxide and hydrocarbons is extremely low, there is also a high level of environmental friendliness with long-term combustion quality.
- the burner designated 1 in Fig. 1 for the combustion of heating oil consists of a fuel supply line 2 provided with an atomizing nozzle 3 and an air supply pipe 4 concentrically surrounding it, in the annular duct 5 of which combustion air of the atomizing nozzle 3 generated by a fan (not shown), which is adjustable in the axial direction can be arranged and which is assigned an ignition electrode 6, flows.
- a flame tube 11 is made from one to the air supply line 4 by means of two flanges 7 and 18, which are connected to one another by screws 8 Material with a high heat storage paper attached, into which the atomizer nozzle 3 protrudes.
- the inlet opening 13 of the flame tube 11 forming a combustion chamber 12 is provided with a throttle 14, through which the flow rate of the supplied combustion air is increased to a great extent.
- the end of the flame tube 11 opposite the throttle 14, on the other hand, has a closure plate 15, into which a larger number of outlet openings 16 and 16 'are incorporated.
- the outlet openings 16 and 16 'are as shown in FIG. 2, on concentric circles of holes a and a' and are designed as bores with a circular cross section.
- the inner wall of the closure plate 15 can be provided with a conical surface 17, as shown in broken lines will.
- the throttle 14 is formed by a thickening 21 formed in the flame tube 11 and triangular in longitudinal section, the conical inner lateral surfaces 22 and 23 of which are inclined opposite to one another and merge into one another by a fillet 24.
- a recess 25 running parallel to the longitudinal axis A of the flame tube 11 for holding the ignition electrodes 6 is incorporated into the thickening 21.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Pressure-Spray And Ultrasonic-Wave- Spray Burners (AREA)
- Spray-Type Burners (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT84100182T ATE33301T1 (de) | 1983-01-14 | 1984-01-10 | Brenner zur stoechiometrischen verbrennung fluessiger oder gasfoermiger brennstoffe. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19833301083 DE3301083A1 (de) | 1983-01-14 | 1983-01-14 | Brenner zur stoechiometrischen verbrennung fluessiger oder gasfoermiger brennstoffe |
| DE3301083 | 1983-01-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0114610A1 true EP0114610A1 (fr) | 1984-08-01 |
| EP0114610B1 EP0114610B1 (fr) | 1988-03-30 |
Family
ID=6188298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP84100182A Expired EP0114610B1 (fr) | 1983-01-14 | 1984-01-10 | Brûleur à combustion stoechiométrique de combustible liquide ou gazeux |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0114610B1 (fr) |
| AT (1) | ATE33301T1 (fr) |
| DE (2) | DE3301083A1 (fr) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2695712A1 (fr) * | 1992-09-15 | 1994-03-18 | Man B & W Diesel Ag | Tube de flamme pour brûleur à combustibles liquides ou gazeux. |
| DE102006012168B4 (de) * | 2006-03-14 | 2009-05-07 | Gvp Gesellschaft Zur Vermarktung Der Porenbrennertechnik Mbh | Brenner zur Verbrennung von Flüssigbrennstoff |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT501141B8 (de) * | 2003-03-05 | 2007-02-15 | Soellinger Johann | Brenner für flüssigbrennstoff, insbesondere pflanzenöl |
| CN110986035B (zh) * | 2019-12-10 | 2022-02-25 | 清远市精旺环保设备有限公司 | 一种多参数自适应燃烧器 |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB934178A (en) * | 1959-07-20 | 1963-08-14 | Alfred Edward Moore | Improvements relating to oil burners |
| GB1022122A (en) * | 1961-08-31 | 1966-03-09 | Socony Mobil Oil Co Inc | Gun-type oil burner |
| DE1266433B (de) * | 1962-10-26 | 1968-04-18 | Optimal Oelfeuerungsmaschb G M | OElvergasungsbrenner |
| DE1551732A1 (de) * | 1962-11-23 | 1970-04-02 | Otto Goldmann | OElvergasungsbrenner mit Geblaese |
| FR2175480A5 (fr) * | 1972-03-08 | 1973-10-19 | Mendelson Ralph | |
| US4021191A (en) * | 1972-10-30 | 1977-05-03 | Aqua-Chem, Inc. | Reduction of pollutants in gaseous hydrocarbon combustion products |
| DE2808690A1 (de) * | 1978-03-01 | 1979-09-06 | Messerschmitt Boelkow Blohm | Einrichtung zum erzeugen von heissen daempfen zur tertiaeren foerderung von erdoel |
| DE2810193A1 (de) * | 1978-03-09 | 1979-09-13 | Walter Swoboda | Brenner fuer fluessige brennstoffe |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1591886A (fr) * | 1968-11-15 | 1970-05-04 |
-
1983
- 1983-01-14 DE DE19833301083 patent/DE3301083A1/de not_active Withdrawn
-
1984
- 1984-01-10 AT AT84100182T patent/ATE33301T1/de not_active IP Right Cessation
- 1984-01-10 EP EP84100182A patent/EP0114610B1/fr not_active Expired
- 1984-01-10 DE DE8484100182T patent/DE3470208D1/de not_active Expired
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB934178A (en) * | 1959-07-20 | 1963-08-14 | Alfred Edward Moore | Improvements relating to oil burners |
| GB1022122A (en) * | 1961-08-31 | 1966-03-09 | Socony Mobil Oil Co Inc | Gun-type oil burner |
| DE1266433B (de) * | 1962-10-26 | 1968-04-18 | Optimal Oelfeuerungsmaschb G M | OElvergasungsbrenner |
| DE1551732A1 (de) * | 1962-11-23 | 1970-04-02 | Otto Goldmann | OElvergasungsbrenner mit Geblaese |
| FR2175480A5 (fr) * | 1972-03-08 | 1973-10-19 | Mendelson Ralph | |
| US4021191A (en) * | 1972-10-30 | 1977-05-03 | Aqua-Chem, Inc. | Reduction of pollutants in gaseous hydrocarbon combustion products |
| DE2808690A1 (de) * | 1978-03-01 | 1979-09-06 | Messerschmitt Boelkow Blohm | Einrichtung zum erzeugen von heissen daempfen zur tertiaeren foerderung von erdoel |
| DE2810193A1 (de) * | 1978-03-09 | 1979-09-13 | Walter Swoboda | Brenner fuer fluessige brennstoffe |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2695712A1 (fr) * | 1992-09-15 | 1994-03-18 | Man B & W Diesel Ag | Tube de flamme pour brûleur à combustibles liquides ou gazeux. |
| DE102006012168B4 (de) * | 2006-03-14 | 2009-05-07 | Gvp Gesellschaft Zur Vermarktung Der Porenbrennertechnik Mbh | Brenner zur Verbrennung von Flüssigbrennstoff |
Also Published As
| Publication number | Publication date |
|---|---|
| DE3470208D1 (en) | 1988-05-05 |
| ATE33301T1 (de) | 1988-04-15 |
| DE3301083A1 (de) | 1984-07-19 |
| EP0114610B1 (fr) | 1988-03-30 |
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