EP2904317A2 - Pointe de brûleur et brûleur - Google Patents

Pointe de brûleur et brûleur

Info

Publication number
EP2904317A2
EP2904317A2 EP13792288.6A EP13792288A EP2904317A2 EP 2904317 A2 EP2904317 A2 EP 2904317A2 EP 13792288 A EP13792288 A EP 13792288A EP 2904317 A2 EP2904317 A2 EP 2904317A2
Authority
EP
European Patent Office
Prior art keywords
burner tip
burner
wall
displacement body
tip
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.)
Withdrawn
Application number
EP13792288.6A
Other languages
German (de)
English (en)
Inventor
Christoph Kiener
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Priority to EP13792288.6A priority Critical patent/EP2904317A2/fr
Publication of EP2904317A2 publication Critical patent/EP2904317A2/fr
Withdrawn legal-status Critical Current

Links

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
    • F23D14/24—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 at least one of the fluids being submitted to a swirling motion
    • 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
    • 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
    • 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
    • F23D14/72—Safety devices, e.g. operative in case of failure of gas supply
    • F23D14/76—Protecting flame and burner parts
    • 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
    • F23D14/72—Safety devices, e.g. operative in case of failure of gas supply
    • F23D14/78—Cooling burner parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L7/00—Supplying non-combustible liquids or gases, other than air, to the fire, e.g. oxygen, steam
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L7/00—Supplying non-combustible liquids or gases, other than air, to the fire, e.g. oxygen, steam
    • F23L7/007—Supplying oxygen or oxygen-enriched air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2214/00—Cooling
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery

Definitions

  • the present invention relates to a burner tip, in particular a burner tip for high-temperature applications in synthesis gas production.
  • the invention relates to a burner, in particular a burner for synthesis gas production.
  • a burner for a synthesis gas reactor is schematically shown in FIG.
  • This comprises an outer burner element, in the tip of a cavity with a displacer arranged therein is present. Around the displacement body around a cooling water channel is guided, which serves to cool the burner tip.
  • the burner further comprises an inner burner element, which is arranged concentrically to the outer tube. Between the inner burner element and the outer burner element is a channel for the supply of
  • the inner burner element has in the region of its tip a cavity with a displacer arranged therein, around which a cooling water channel is guided, with which the tip of the inner burner element is cooled, on.
  • a pilot burner is arranged, wherein between the inner burner element and the pilot burner, a supply channel for an oxygen / steam mixture is formed.
  • the pilot ⁇ burner is hollow-walled, wherein in the region of the tip of the pilot burner, a displacement body is arranged around which a cooling water channel is guided in order to cool the pilot burner ⁇ tip.
  • the burner tips of burners in synthesis gas reactors are exposed to high temperatures during operation of the reactor, so that a considerable heat input into the burner tip occurs .
  • the registered heat is dissipated by the flowing into the beschrie ⁇ surrounded cooling water channels cooling water.
  • the burner tip can be provided with a thermal barrier coating, as described in DE 10 2008 006 572 AI.
  • the respective burner elements are usually made of several ⁇ ren pipes and one connecting the tubes together
  • the tip in which the displacement body is arranged, constructed.
  • the tip is usually assembled from a äuße ⁇ ren annular member and an inner annular member, wherein the outer annular member is connected to the äuße ⁇ ren tube and the inner annular member with the inner tube.
  • the annular parts are welded together at their ends facing away from the outer tube or the inner tube.
  • the displacer is connected to a centrally located tube which divides the space between the outer tube and the inner tube into an annular supply channel for cooling water and an annular discharge channel for cooling water.
  • Each burner element therefore has a complex structure.
  • the burner tips are relatively large, and thus heavy, which reduces their handling, for example, as part of a maintenance.
  • the wall thicknesses of the pipes or the tip portions are typically at least 3 mm, which makes the heat dissipation and increases the susceptibility to temperature fluctuations ⁇ .
  • suspended particles and cooling water over time can lead to a narrowing of the cooling water channels in the region of the burner tip or even to a blockage of the cooling water channels, which entails an increased need for maintenance so that such constrictions can be detected in good time.
  • a burner tip according to the invention includes a combustor liner ⁇ opening and at least one outlet opening surrounding the burner tip of the burner part.
  • the burner tip part be ⁇ sits a burner tip wall with a closed end of the burner tip part forming end wall. In its interior, the burner tip part has a cavity reaching up to the end wall.
  • the burner tip wall has a wall facing inside the cavity.
  • a displacement body is arranged with one of the wall inside of the burner tip wall facing the displacement body outside, wherein the displacement body is hollow. Between the wall inside the burner tip wall and the displacement body outside at least one flow ⁇ channel is formed.
  • the displacement body By virtue of the hollow formation of the displacement body, it is possible to save weight and material in comparison to combustion tips according to the prior art in which the displacement body is designed as a solid body. Because of the lower weight, the torch tip, which can have diameters of 50 cm and more, is easier to handle, for example as part of a maintenance or repair process.
  • the displacement body has an end proximal to the end wall, a distal end wall to the end wall, a Verdrlindungskör ⁇ inside and in the region of the distal end at least one positive displacement body opening towards the displacement body opening. In this way it is possible, the hollow displacement body a flowing through the flow channel between the displacement body outside and the inside wall ⁇ side of the burner tip wall cooling fluid, eg.
  • a flow guide may be arranged in the displacement body opening, for example., That it shares the displacement body opening into an inflow section and an outflow section under ⁇ , and that a flow path between the inflow and the outflow section is formed around the flow-around.
  • the displacement body has at least one further displacement body opening which is open toward the displacement body interior. This is then arranged between the proximal end of the displacement body and the in the region of the distal end to ⁇ ordered displacement body opening. Between the displacer opening and the further displacer opening, the displacer interior forms a flow path for cooling fluid, such as cooling water.
  • a foreign matter collecting space branching from the flow path in the displacement body interior may be located in the fluid flowing through the flow path.
  • the collecting ⁇ space in the displacement body interior is in an area of the flow path in which a change in the flow direction ⁇ takes place. It is particularly advantageous if the change in the flow direction brings about a substantial flow reversal.
  • the hollow displacement body is enough space to provide a sufficiently large collection space available. The collection of foreign matter such as suspended particles in the cooling fluid causes the To slow down the fluid passages leading around the outside of the displacement body and thereby delaying a narrowing of the flow cross-section longer. This in turn has a favorable effect on the maintenance intervals.
  • the displacement body is connected via support structures, for example via web-like or pillar-like structures, with the inside wall of the burner tip wall.
  • the support structures extend from the displacement body outside to the inside of the burner tip wall.
  • adjacent web-like or pillar- ⁇ like structures may converge on the displacement body on the outside and / or on the inner wall face of the burner tip wall into sheets at least in the region of the burner tip end wall.
  • These arches can be formed in particular as pointed arches, similar to the arches in Gothic architecture.
  • the position of the displacement body in the interior of the burner tip wall Festge ⁇ sets.
  • the entire structure of burner tip wall and displacement body can be more stable out ⁇ staltet.
  • the density of support structures which connect the displacement body to the burner tip wall is increased at least in the area of the end wall in comparison to other areas of the burner tip wall.
  • the burner tip wall can be made thinner compared to areas without increased density of support structures.
  • it may have thicknesses below 3 mm, in particular thicknesses in the range of 0.5 mm to 2 mm. In this way can be in areas that be ⁇ Sonder high temperatures and / or particularly pronounced temperature fluctuations are exposed to the heat absorbed from the burner tip wall off quickly to the cooling fluid lead, whereby the thinner wall can be kept cooler than a thicker wall, which in turn has a favorable effect on the available operating time to a maintenance.
  • the displacement body may be formed in particular integrally with the Stützstruktu ⁇ Ren and the burner tip wall.
  • This allows a particularly stable structure and allows in many structures in the first production.
  • the production can be carried out by additive manufacturing process (English: additive manufacturing process), for example, by selective laser melting (English: selective laser melting).
  • the burner tip wall can be coated with a thermal barrier coating at least in the region of the front wall. Insbeson ⁇ particular, if the burner tip wall thicker and thinner preparation ⁇ surface having a configuration is advantageous in which the thermal barrier coating is on the thinner regions, in particular in the region of the end wall, is applied. Characterized in that in the ⁇ ser embodiment in the regions with the thermal barrier coating, the tip of the burner wall is thinner may be achieved that the total wall thickness in these areas does not dispute the thickness of the remaining regions without any thermal barrier layer in spite of the applied thermal barrier coating.
  • the inventive burner tip may also swirl blades which extend at least partially into the burner outlet opening ⁇ be integrally trained det with the burner wall. So far swirl blades are pushed from the burner tip facing away from the burner side in the burner outlet wall surrounded by the burner outlet. This insertion may damage the swirl vanes and / or the burner tip wall. By integrally forming the swirl blades with the burner tip wall, the insertion of swirl blades is unnecessary. In addition, there is a possibility that the between the wall inside of the burner tip wall and the displacement body outside formed flow channel at least partially extends through the swirl blades. In this way, a common ⁇ same cooling of burner tip and swirl blades is possible.
  • twist scoops ⁇ feln form a blading, having the shape of a nozzle of the flow cross section for a flowing through the Be ⁇ blading oxygen-steam mixture in certain areas Blade reduced.
  • FIG. 1 shows a schematic diagram of a burner as used in synthesis gas reactors.
  • FIG. 2 shows the tip of a first burner element.
  • FIG. 3 shows the tip of a second burner element.
  • FIG. 4 shows the tip of a pilot burner used in the burner.
  • FIG. 5 shows an alternative embodiment of the tip from FIG. 3.
  • FIG. 6 shows a further alternative embodiment of the tip from FIG. 3.
  • FIG. 7 shows yet another alternative embodiment from FIG. 3.
  • Figure 8 shows the embodiment of Figure 7 in a section along the line VIII-VIII.
  • the burner is constructed rotationally symmetrically around a burner axis A and includes a tubular section and a Zu effetsab ⁇ is subsequently ⁇ sequent to the lead portion of the burner tip 1, which surrounds a burner opening.
  • the burner comprises a first, outer burner element 2, which is formed in the tubular portion of the burner of three inratge ⁇ inserted tubes 4, 6,. 8 Between the tubes, a cooling fluid supply channel 7 and a cooling fluid discharge channel 9 are formed, via which cooling fluid into the burner tip 1 leads ⁇ leads and can be discharged from this.
  • a cooling fluid in particular water comes into consideration.
  • the external burner element 2 of the pure tube shape differs from and is inclined toward the center of the burner outlet opening. 3
  • it has in the region of the tip a cavity in which a displacement body 5 is arranged at a distance from the wall of the burner element 2 in this area.
  • a flow channel 10 is formed through which the cooling fluid, for example cooling water, through which
  • Tip of the outer burner element 2 is passed to cool them.
  • the deviating from the tubular portion of the outer burner element 2 is an outer burner tip part 11, which is formed as a separate part and its wall IIA is welded to the tubular portion of the outer burner element 2.
  • the wall IIA of Brennerspit ⁇ zenteils 11 has an approximately U-shaped bend, so that it can be connected to both the outer tube 4 and the inner tube 8 of the tubular portion of the outer burner element 2.
  • the displacement body 5 is attached to the middle tube 6. For this purpose, it has a groove 5A whose width is adapted to the wall thickness of the central tube 6 of the tubular portion.
  • the burner further comprises an inner burner element 12 which, except in the region of the burner tip 1, is likewise formed from three telescoping tubes 14, 16, 18.
  • an internal burner ⁇ tip portion 15 closes on the tubular portion of the inner burner element 12 with a cavity therein.
  • a displacement body 15 is arranged, wherein the displacement body outer side has a distance from the inner ⁇ side of the burner tip wall 21A in the region of the inner burner ners-peak part 21, so that a flow channel Zvi ⁇ rule two is formed.
  • the inner burner ⁇ tip portion is formed as a separate part, the wall 21 A is welded to the outer tube 14 and the inner tube 18 of the tubular portion.
  • the wall 21A is bent in a broad sense U-shaped so that it can be welded to both the outer tube 14 and the inner tube 18 of the three nested tubes 14, 16, 18 of the tubular portion.
  • the displacement body 15 is placed on the central tube 16 of the tubular portion on ⁇ .
  • the inner burner element 12 has an outer diameter which is smaller than the inner diameter of the outer burner element 2, so that ge ⁇ forms between the two, an annular channel is serving for supplying a fuel dust, for example for supply of pulverized coal.
  • the inner burner element 12 encloses a largely zy ⁇ linderförmigen space in which a pilot burner 21 is arranged.
  • This includes a tubular portion 22A which is formed from three tubes 24, 26, 28 and a pilot burner tip portion 31 closes on the Be in ⁇ reaching the burner tip 1 at ⁇ .
  • the pilot burner tip part 31 has a cavity in which a displacement body 25 is arranged, wherein the displacement body outside has a distance from the inside of the wall 31A of the pilot burner tip part 31, so that a flow channel 30 is formed between the two.
  • the wall 31 A of the tip portion 31 is welded to the tubular ⁇ shaped portion.
  • the wall 31A of the Pilotbren- ners-peak part 31 is U-shaped ge ⁇ arc in the broadest sense, so that they are welded on the one hand with the outer tube 24 of the tubular portion of the pilot burner 21 and to the inner tube 28 of the tubular portion of the pilot burner 21 can.
  • the displacement body 25 is attached to the middle tube 26 of the tubular portion. For this purpose, it has a groove 25A, whose width is adapted to the wall ⁇ thickness of the central tube 26.
  • the tubular portion of the pilot burner 22 has an outer diameter which is smaller than the inner diameter of the inner burner element 12, so that between both an oxygen / steam channel 23 is formed. This is used to supply water vapor, which is required in the synthesis gas reactor for the conversion of the fuel dust into synthesis gas, and optionally for the supply of oxygen or air.
  • For För ⁇ alteration of the synthesis gas reaction is the steam supplied, and optionally the oxygen supplied and the supplied air, vortexed to the synthesis gas reaction to promote.
  • swirl blades 32 are arranged in the region of the burner tip 1 between the inner burner element 12 and the pilot burner 22.
  • the pilot burner 22 encloses a substantially cylindrical cavity in which a pilot burner and a device for flame monitoring are arranged.
  • FIG. 2 shows the structure of the outer burner tip part 11.
  • the tubes 4, 6, 8 of the tubular section of the outer burner element 2 pushed into one another can be seen.
  • the outer burner tip portion 11 terminates in an end wall 34, which is the end of the outer burner tip portion.
  • a cavity is formed, in which, as already described, the displacement body 5 is located.
  • This is, as shown in Figure 2, hollow. It has an end 36 which is proximal to the end wall 34 and an end 38 which is distal to the end wall and has a groove 5A for attachment to the middle tube 6 of the tubular section of the burner element.
  • a displacement body opening 40 which is open to the interior space 42 of the hollow displacement body 5, so that the interior space 42 is accessible through the displacement body opening 40 .
  • the mig approximately u-conveyor bent burner tip wall IIA is connected to both the äuße ⁇ ren tube 4 and the inner tube 8 of the tubular portion of the outer burner element 2, while the displacement body 5 so with the middle tube 6 of the tubular portion of the outer burner element 2 verbun ⁇ is that the displacement body opening 40 is open to the feed channel 7 formed between the outer tube 4 and the central tube 6.
  • the displacement body interior 42 is thereby fluidly connected to the supply channel 7 for the cooling fluid.
  • the hollow displacement body 5 which consists essentially of a relatively thin displacement body wall 44, is connected via support structures 46 to the inside of the burner tip wall 2. These can be formed like webs or pillars, so that they obstruct the flow in the flow channel 10 as little as possible and even direct it if necessary.
  • Fig. 3 shows the structure of the inner burner tip portion 21 and the subsequent nested tubes 14, 16, 18 of the tubular portion of the inner
  • the inner burner tip part 21 has a burner tip wall 21A with an end wall 47 forming the closed end of the inner burner tip part 21.
  • a displacement body 15 This is in turn designed to be self hollow and has a ⁇ VerdrDeutschungskör a per-interior 52 surrounding displacement body wall 54.
  • the displacement body 15 has an end 48 which is proximal to the end wall 47 and an end 49 which is distal to the end wall 47 and has a groove 15A for attachment to the middle tube 16 of the tubular section of the burner element.
  • a displacement body opening 50 is arranged, via which the displacement body interior 52 is accessible.
  • the torch tip wall 21A of the inner burner tip part 21 is bent approximately U-shaped with the ends of the torch tip wall 21A connected to the outer tube 14 of the tubular portion of the inner burner element 12 and to its inner tube 18.
  • the displacer body wall 54 is connected to the center tube 16 of the tubular portion of the inner burner element 12 such that the displacer body opening 50 is also open between the outer tube 14 and the middle tube 16 of the tubular portion of the inner burner element 12. In this way, the displacement body interior 52 is fluidly connected to the supply channel 17 for the cooling fluid.
  • the displacement body wall 54 is supported by structures, which may be formed, for example, web-like or pillar-like ⁇ forms, connected to the inside of the burner tip wall 21A, so that a defined distance between the displacement body outside and the inside of the burner tip wall 21A is present to form the flow channel 20.
  • structures which may be formed, for example, web-like or pillar-like ⁇ forms, connected to the inside of the burner tip wall 21A, so that a defined distance between the displacement body outside and the inside of the burner tip wall 21A is present to form the flow channel 20.
  • the outer burner tip part of the support structures can also be formed so that they conduct the Strö ⁇ mung through the flow channel, but in any case they are designed so that they impede the flow as little as possible.
  • swirl vanes 32 are integrally formed.
  • the swirl vanes 32 are hollow, and each have a swirl vane interior 58, which is fluidly connected via a cooling fluid inlet opening 59 and a cooling fluid outlet opening 60 to the flow channel 20 leading around the displacement body 15.
  • the swirl body interior 58 is thus part of the cooling circuit, so that the swirl vanes 32 are cooled together with the inner burner tip part 21 by the cooling fluid.
  • a pipe 62 is formed, which serves as a guide for the ⁇ set of the pilot burner 22.
  • Embodiments without tube 62 for guiding the pilot burner 22 are also possible.
  • the tube 62 shown in the figure thus represents only an option.
  • pilot burner 22 in the region of the burner tip 1 is shown in FIG. In the figure, the pilot burner tip portion 31 and consisting of the three interlocking ⁇ pushed tubes 24, 26 can be seen, tubular portion of the pilot burner 22 formed 28th
  • the pilot burner tip portion 31 has an approximately U-shaped burner tip wall 31A, which defines an interior of the burner Pilot burner tip portion 31 surrounds.
  • a displacement body 25 is arranged in the interior.
  • 21 of the outer burner element 2 and the inner burner member 12 and the displacement member 25 located in the interior of Pilotbren- ners-peak part 21 is hollow. It comprises a oriented to the front side 76 proximal ⁇ males end 66 and a distal end remote from this 68 with a groove 25A for attaching to the central tube 26 of the tubular portion of the burner element.
  • a displacement body opening 70 is arranged, via which the interior 72 of the displacement body 25 is accessible.
  • the displacement body interior 72 is surrounded by a displacement body wall 74, which is connected via support structures 76, for example the pfei ⁇ lerianon or web-like structures already described, with the inside of the burner tip wall 31A.
  • the support structures 76 may be formed flow-conducting. However, in any case they are designed so that they flow formed by the interim ⁇ rule the displacement body outer side and the inner side of the burner tip wall 31A of flow channel 30 does not interfere.
  • the two ends of the roughly U-shaped torch tip wall 31A of the pilot burner tip 31 are connected to the outer tube 24 and the inner tube 28 of the tubular section of the pilot burner 22, the displacer wall 74 to the central tube 26 of the tubular section.
  • the compound is carried out at a point of Verdrteilungsisson- wall 74, which is selected such that the Verdrän ⁇ supply body opening 70 supply channel formed to between the outer tube 24 of the tubular portion of the pilot burner 22 and its intermediate tube 26 is open , The displacement body interior 72 is thereby integrated into the cooling fluid circuit.
  • the outer diameter of the pilot burner so 22 is chosen such that it can be scho ⁇ ben into the tube 62 of the inner burner wall 12th
  • the pilot burner 22 also encloses a substantially cylindrical interior in which a pilot burner and a flame monitoring device can be arranged.
  • the burner tip parts 11, 21, 31 are each made separate from the tubular sections formed by the nested tubes.
  • the ineinan ⁇ dergeschobenen tubes are then connected, for example by means of a Sch Strukturpro ⁇ zesses with the respective burner tip parts subsequently.
  • the burner tip parts can in particular in each case in one piece einstü ⁇ Herge ⁇ represents by a generative layer construction process will be.
  • the described complex structures in which hollow displacement bodies are connected to the burner tip walls via support structures become possible.
  • the integral production of the swirl ⁇ blades 32 and the tube 62 with the inner Brennerspit ⁇ zenteil 21 can be ensured by the generative manufacturing method using a layer structure. 5
  • selective laser sintering may in particular be used.
  • FIG. 5 A modification of the embodiment shown in Figure 3 will be described below with reference to Figure 5.
  • the modification concentrates essentially on the design of the displacement body and its displacement ⁇ body interior.
  • the remaining elements of the exemplary embodiment described in FIG. 3, such as the swirl vanes, are therefore not shown in FIG.
  • Elements corresponding to those of Figure 3 are designated by the same reference numerals as in Figure 3 and will not be explained again to avoid repetition
  • the displacement body of the embodiment shown in Figure 5 differs from the displacement body of the embodiment shown in Figure 3 essentially in that its displacement body opening 50 is increased.
  • a flow guide element 80 projects from the inside of the inner burner wall into the displacement body opening 50, so that the flow guide element 80 divides the opening into an inflow section 81 and a discharge section 82.
  • a flow reversal 84 In the area of flow reversal 84, a collection space 85 branches off from the flow path 83, the access to the collection space being approximately in the original flow direction, ie the flow direction before the flow reversal is. Suspended particles in the cooling fluid can not as easily understand the abrupt change of direction in the flow reversal due to their inertia as the fluid itself, so that the suspended particles can enter the collection chamber 85 and deposit there.
  • the arches are formed as pointed arches, so that the pillar-like support structures form a kind of vault, which has the shape of a Gothic vault.
  • the thin wall may also extend beyond the end wall 147 and even form the entire burner tip wall 21A.
  • Reducing the thickness of the burner tip wall 21A in regions of high thermal stress can result in faster heat removal to the cooling fluid.
  • a thinner wall is less susceptible to thermal fluctuations.
  • FIGS. 7 and 8 show a section along the line VIII-VIII shown in FIG.
  • the support structures illustrated in Figures 7 and 8 have the form of webs 86, which are formed between the displacement body wall 54 and the burner tip wall 21A and 15 extend from the distal end of the displacement body to the ⁇ sen proximal end, and back to the distal end , In this case, the webs 86 run parallel and converge both on the displacement body outside and on the inside of the burner wall in arcs.
  • the arches are arches so that Zvi ⁇ rule to have a single webs flow channels 20 with cross-sections that correspond to a taper at their ends ellipse formed. Also, this configuration of the support structures allows reducing the wall thickness with high stability of the thinner wall.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gas Burners (AREA)
  • Nozzles For Spraying Of Liquid Fuel (AREA)

Abstract

L'invention concerne une pointe de brûleur (1) comportant une ouverture de sortie de brûleur (3) et au moins une partie de pointe de brûleur (11) entourant l'ouverture de sortie de brûleur (3), présentant une paroi de pointe de brûleur (11A) pourvue d'une paroi frontale (47, 67, 147) formant une extrémité fermée de la partie de pointe de brûleur (11). La partie de pointe de brûleur (11) présente en son intérieur un espace creux s'étendant jusqu'à la paroi frontale (47), la paroi de pointe de brûleur (11A) présentant un côté intérieur de paroi orienté vers l'espace creux. L'espace creux contient un corps de déplacement (5) comportant un côté extérieur de corps de déplacement orienté vers le côté intérieur de paroi de la paroi de pointe de brûleur (11A). Entre le côté intérieur de paroi de la paroi de pointe de brûleur (11A) et le côté extérieur de corps de déplacement est formé au moins un canal d'écoulement (10).
EP13792288.6A 2012-12-14 2013-11-06 Pointe de brûleur et brûleur Withdrawn EP2904317A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP13792288.6A EP2904317A2 (fr) 2012-12-14 2013-11-06 Pointe de brûleur et brûleur

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP12197202.0A EP2743582A1 (fr) 2012-12-14 2012-12-14 Pointe de brûleur et brûleur
EP13792288.6A EP2904317A2 (fr) 2012-12-14 2013-11-06 Pointe de brûleur et brûleur
PCT/EP2013/073108 WO2014090481A2 (fr) 2012-12-14 2013-11-06 Pointe de brûleur et brûleur

Publications (1)

Publication Number Publication Date
EP2904317A2 true EP2904317A2 (fr) 2015-08-12

Family

ID=47602922

Family Applications (2)

Application Number Title Priority Date Filing Date
EP12197202.0A Withdrawn EP2743582A1 (fr) 2012-12-14 2012-12-14 Pointe de brûleur et brûleur
EP13792288.6A Withdrawn EP2904317A2 (fr) 2012-12-14 2013-11-06 Pointe de brûleur et brûleur

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP12197202.0A Withdrawn EP2743582A1 (fr) 2012-12-14 2012-12-14 Pointe de brûleur et brûleur

Country Status (4)

Country Link
US (1) US20150300634A1 (fr)
EP (2) EP2743582A1 (fr)
CN (1) CN104870898B (fr)
WO (1) WO2014090481A2 (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014218219A1 (de) * 2014-09-11 2016-03-17 Siemens Aktiengesellschaft Kompaktbrenner für einen Flugstromvergaser, bar einer Flüssigkeitskühlung
DE102015202579A1 (de) 2015-02-12 2016-08-18 Siemens Aktiengesellschaft Dünnwandige intensivgekühlte Brennerspitze mit Wasserkühlung
DE102015204594A1 (de) * 2015-03-13 2016-09-15 Siemens Aktiengesellschaft Monolithische Brennerdüse
DE102015115409A1 (de) 2015-07-09 2017-01-12 Choren Industrietechnik GmbH Verfahren zur Gestaltung von fluiddurchströmten Bauteilen
US11020758B2 (en) * 2016-07-21 2021-06-01 University Of Louisiana At Lafayette Device and method for fuel injection using swirl burst injector
DE102017200106A1 (de) * 2017-01-05 2018-07-05 Siemens Aktiengesellschaft Brennerspitze mit einem Luftkanalsystem und einem Brennstoffkanalsystem für einen Brenner und Verfahren zu deren Herstellung
DE102017200643A1 (de) * 2017-01-17 2018-07-19 Siemens Aktiengesellschaft Brennerspitze mit einer Luftkanalstruktur und einer Brennstoffkanalstruktur für einen Brenner und Verfahren zur Herstellung der Brennerspitze
DE102017116529B4 (de) * 2017-07-21 2022-05-05 Kueppers Solutions Gmbh Brenner
DE202017107794U1 (de) 2017-12-20 2018-01-22 Choren Industrietechnik GmbH Brennerspitze und Pilotbrenner
DE202017107808U1 (de) 2017-12-21 2018-01-26 Choren Industrietechnik GmbH Brenner für einen Flugstromvergaser
CN108485714B (zh) * 2018-05-28 2024-03-26 北京精益增材科技有限公司 一种内置水冷壁的一体式工艺烧嘴喷嘴
CN108485713B (zh) * 2018-05-28 2024-03-26 北京精益增材科技有限公司 一种内置冷却流道的一体式工艺烧嘴喷嘴
EP3748231B1 (fr) * 2019-06-05 2023-08-30 Siemens Energy Global GmbH & Co. KG Brûleur et bec de brûleur
US20220186130A1 (en) * 2020-12-15 2022-06-16 Air Products And Chemicals, Inc. Cooling jacket for gasification burner

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4813867A (en) * 1985-10-31 1989-03-21 Nihon Nensho System Kabushiki Kaisha Radiant tube burner
US4858538A (en) * 1988-06-16 1989-08-22 Shell Oil Company Partial combustion burner
CN2308023Y (zh) * 1997-06-08 1999-02-17 周明连 石油液化气安全节能器
JP2003148710A (ja) * 2001-11-14 2003-05-21 Mitsubishi Heavy Ind Ltd 燃焼器
ES2295423T3 (es) * 2001-12-20 2008-04-16 Alstom Technology Ltd Procedimiento para la inyeccion de una mezcla de combustible/aire en una camara de combustion.
JP4739090B2 (ja) * 2006-04-06 2011-08-03 大陽日酸株式会社 バーナ又はランスの冷却構造
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
DE102008006572A1 (de) 2008-01-29 2009-07-30 Siemens Aktiengesellschaft Keramische Beschichtung von Vergasungsbrennerteilen
KR101096632B1 (ko) * 2009-12-10 2011-12-21 에스케이이노베이션 주식회사 상부 공급 이중선회형 가스화기
EP2728260A1 (fr) * 2012-11-06 2014-05-07 Alstom Technology Ltd Dispositif de tourbillonnement axial

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
None *
See also references of WO2014090481A2 *

Also Published As

Publication number Publication date
US20150300634A1 (en) 2015-10-22
CN104870898B (zh) 2017-03-08
WO2014090481A3 (fr) 2014-08-28
EP2743582A1 (fr) 2014-06-18
CN104870898A (zh) 2015-08-26
WO2014090481A2 (fr) 2014-06-19

Similar Documents

Publication Publication Date Title
WO2014090481A2 (fr) Pointe de brûleur et brûleur
EP2898266A1 (fr) Pointe de brûleur et brûleur
EP0164576B1 (fr) Brûleur industriel pour combustibles gazeux ou liquides
EP1741977B1 (fr) Brûleur à charbon pulvérisé pour émissions réduites de NOx
CH680467A5 (fr)
EP1070914A1 (fr) Brûleur à prémélange
EP3526519B1 (fr) Pointe de brûleur comprenant un système de conduit d'air et un système de conduit de combustible pour un brûleur et procédé de fabrication associé
WO2007101427A1 (fr) Bruleur annulaire
EP2260238B1 (fr) Procédé de fonctionnement d'un brûleur à prémélange
CH702683A2 (de) Brennstoffeinspritzdüse.
CH697703A2 (de) Kraftstoffdüsenanordnung.
EP2171354B1 (fr) Brûleur
WO2012130290A1 (fr) Buse de découpe puissante pour la découpe en particulier de pièces d'œuvre en acier
DE60016106T2 (de) Brenner mit Abgasrückführung
EP2236934A1 (fr) Agencement de brûleur
WO2007140740A1 (fr) Buse de brûleur
DE212012000182U1 (de) Verbesserter Luft-Brennstoff-Schweißbrenner mit Wirbel-Verbrennung
DE19507088B4 (de) Vormischbrenner
DE1601532B2 (de) Flammrohr fuer eine gasturbinenbrennkammer
DE4446609B4 (de) Vorrichtung zur Brennstoffzuführung zu einem sowohl für flüssige als auch für gasförmige Brennstoffe geeigneten Brenner
EP3267104A1 (fr) Brûleur et procédé d'optimisation de la combustion de combustibles particulaires ou grossiers, en particulier de la biomasse
EP1286115A1 (fr) Installation de post-combustion thermique
DE4011190A1 (de) Rekuperatorbrenner
DE102009010274A1 (de) Brenner für eine thermische Nachverbrennungsvorrichtung
DE10203116B4 (de) Heizgerät mit einem becherförmigen Wärmeübertrager

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20150504

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAX Request for extension of the european patent (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

RIC1 Information provided on ipc code assigned before grant

Ipc: F23L 7/00 20060101AFI20170215BHEP

Ipc: F23D 14/76 20060101ALI20170215BHEP

Ipc: F23D 14/58 20060101ALI20170215BHEP

Ipc: F23D 14/22 20060101ALI20170215BHEP

Ipc: F23D 14/78 20060101ALI20170215BHEP

Ipc: F23D 14/24 20060101ALI20170215BHEP

INTG Intention to grant announced

Effective date: 20170323

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: SIEMENS AKTIENGESELLSCHAFT

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20170803