WO2020237680A1 - Brûleur à combustible gazeux - Google Patents

Brûleur à combustible gazeux Download PDF

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Publication number
WO2020237680A1
WO2020237680A1 PCT/CN2019/089684 CN2019089684W WO2020237680A1 WO 2020237680 A1 WO2020237680 A1 WO 2020237680A1 CN 2019089684 W CN2019089684 W CN 2019089684W WO 2020237680 A1 WO2020237680 A1 WO 2020237680A1
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WO
WIPO (PCT)
Prior art keywords
oxidant
fuel
supply system
passage
outlet end
Prior art date
Application number
PCT/CN2019/089684
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English (en)
Chinese (zh)
Inventor
阎韬
奇亚瓦·瑞米
万凯姆潘·彼得
刘奔
侯蒙
赵春茹
Original Assignee
乔治洛德方法研究和开发液化空气有限公司
阎韬
奇亚瓦·瑞米
万凯姆潘·彼得
刘奔
侯蒙
赵春茹
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Application filed by 乔治洛德方法研究和开发液化空气有限公司, 阎韬, 奇亚瓦·瑞米, 万凯姆潘·彼得, 刘奔, 侯蒙, 赵春茹 filed Critical 乔治洛德方法研究和开发液化空气有限公司
Priority to PCT/CN2019/089684 priority Critical patent/WO2020237680A1/fr
Publication of WO2020237680A1 publication Critical patent/WO2020237680A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D17/00—Burners for combustion conjointly or alternatively of gaseous or liquid or pulverulent fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N1/00—Regulating fuel supply
    • F23N1/02—Regulating fuel supply conjointly with air supply

Definitions

  • the present invention relates to a combustion equipment, in particular to a gas fuel burner and an operating method thereof, in particular to a gas fuel burner for adjusting the flame length and direction, area, rigidity and local atmosphere.
  • the present invention contemplates a gaseous fuel burner, which can adjust the flame length and direction, size, stiffness and local atmosphere, combustion speed can also be controlled to reduce NO x (nitrogen oxide) product.
  • the present invention provides a gas fuel burner, the burner comprising:
  • the fuel-oxidizer supply system, the first oxidizer supply system, and the second oxidizer supply system are respectively defined by a refractory unit and metal parts;
  • the first oxidizer supply system is located on one side of the fuel-oxidizer supply system, and the second oxidizer supply system is located on the other side of the fuel-oxidizer supply system;
  • the first oxidant supply system includes a first oxidant passage
  • the second oxidant supply system includes a second oxidant passage
  • the outlet end of the first oxidant passage is provided with a first turning structure, and the first turning structure makes the outlet end of the first oxidant passage and the extension line of the body of the first oxidant passage form a first offset angle, and The offset angle is less than 90°;
  • the outlet end of the second oxidant passage is provided with a second turning structure, and the second turning structure makes the outlet end of the second oxidant passage and the extension line of the second oxidant passage form a second deviation Set angle, and the second offset angle is less than 90°;
  • the fuel-oxidizer supply system includes: a fuel-oxidizer passage and a fuel nozzle arranged in the fuel-oxidizer passage, wherein:
  • the fuel nozzle includes a connecting part and at least two fuel injection pipes.
  • the connecting part is provided with a fuel flow distribution chamber.
  • the gas fuel enters the fuel flow distribution chamber from the inlet end of the connection part, and passes through the fuel flow distribution chamber after being distributed. Outflow from the outlet end of each fuel injection pipe;
  • the inner diameter of the fuel-oxidant passage is larger than the outer diameter of the fuel injection pipe; the gap between the fuel-oxidant passage and the fuel injection pipe is 1-8mm, preferably 2-6mm.
  • a flow guiding component is arranged in the fuel gas flow distribution cavity for distributing gas fuel to each injection pipe.
  • the first offset angle is 1-15°.
  • the first offset angle is 1.5-8°.
  • the second offset angle is 0-15°.
  • the second offset angle is 0-4°.
  • the first offset angle and the second offset angle are not equal.
  • the outlet end of the fuel injection pipe has a turning structure, so that it has a third offset angle with the body extension of the fuel injection pipe, and the third offset angle is less than 90°.
  • the third offset angle is less than 20°.
  • the fuel injection pipes are symmetrically distributed along a symmetric center line, and the outlet end of the fuel injection pipe faces the symmetric center line of the fuel injection pipe.
  • the first oxidant supply system is composed of two or more first oxidant passages arranged symmetrically, and has a first symmetrical centerline.
  • the outlet end of the first oxidant passage is also arranged toward or away from the first symmetric centerline.
  • the second oxidant supply system is composed of two or more second oxidant passages arranged symmetrically, and has a second symmetrical centerline.
  • the outlet end of the second oxidant passage is also disposed toward or away from the second symmetric centerline.
  • the outlet end of the fuel-oxidant passage, the outlet end of the first oxidant passage and/or the outlet end of the second oxidant passage are provided with a diameter reducing structure.
  • the burner further includes a third control unit for adjusting the flow rate and flow rate of the oxidant in the first oxidizer supply system, the second oxidizer supply system, and the fuel-oxidizer supply system.
  • a third control unit for adjusting the flow rate and flow rate of the oxidant in the first oxidizer supply system, the second oxidizer supply system, and the fuel-oxidizer supply system.
  • the burner further includes a fourth control unit for adjusting the oxidant ratio of each first oxidant passage.
  • the burner further includes a fifth control unit for controlling the oxidant ratio of each second oxidant passage.
  • the burner further includes a sixth control unit for controlling the fuel ratio of each fuel injection pipe.
  • the metal piece includes:
  • the second control unit and
  • the first control unit can control the communication between the first connection end and the second connection end to adjust the flow and flow rate of the oxidant in the first oxidant passage and the second oxidant passage;
  • the second control unit can control the first connection end and the fuel- The oxidant passage is connected to control the flow and flow rate of the oxidant in the fuel-oxidant passage.
  • the first control unit and the second control unit both select automatic valves or manual valves.
  • the cross-sectional shape of the first oxidant passage is circular, elliptical, square or irregular; the cross-sectional shape of the second oxidant passage is circular, elliptical, square or irregular. Shape; the cross-sectional shape of the fuel-oxidant passage is round, oval, square or irregular.
  • the oxidant of the first oxidant system is selected from oxygen, air or oxygen-enriched air
  • the oxidant of the second oxidant system is selected from oxygen, air or oxygen-enriched air
  • the oxidant of the fuel-oxidant supply system is selected Oxygen, air or oxygen-enriched air.
  • the fuel of the fuel-oxidant supply system is gas fuel.
  • the gas fuel burner provided by the present invention can realize the combustion effects such as adjusting the flame length and direction, controlling the combustion speed, and reducing NOx products, specifically:
  • the local oxidation and reduction atmosphere of the kiln can be adjusted to avoid local high temperature
  • the flame coverage area is adjustable
  • Fig. 1 is a schematic structural diagram of a gas fuel burner used in Examples 1-4 of the present invention.
  • FIG. 2 is a schematic diagram of the structure of the fuel-oxidizer supply system 11, the first oxidizer supply system 12, and the second oxidizer supply system 13 defined by the refractory unit and metal parts of the present invention.
  • Figure 3 is a right side view of Figure 2 (viewed from the direction of the fuel or oxidizer inlet).
  • Figure 4 is a left side view of Figure 2 (viewed from the direction of the fuel or oxidizer outlet).
  • FIG. 5 is a schematic diagram of the structure of the fuel nozzle of Embodiment 1 of the present invention.
  • Figure 6a is a schematic diagram of the influence of increasing the proportion of oxidant in the upper first oxidant passage on the flame
  • Figure 6b is a schematic diagram of the influence of increasing the proportion of oxidant in the lower second oxidant passage on the flame.
  • Fig. 7a is a schematic structural diagram of a fuel nozzle of Embodiment 3 of the present invention.
  • Fig. 7b is a schematic structural diagram of another fuel nozzle of the present invention.
  • Figure 8 shows the effect of the horseshoe flame cycle in the horseshoe flame glass furnace on the conventional oxygen burners on both sides.
  • Fig. 9 is a schematic diagram of the structure of adding the pure oxygen burner of the present invention to boost the horseshoe flame glass furnace.
  • Fig. 10 is a plan view of a fuel nozzle of a gas fuel burner of Example 4 of the present invention.
  • first and second are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined with “first” and “second” may explicitly or implicitly include one or more of these features. In the description of the present invention, “multiple” means two or more than two, unless otherwise clearly specified.
  • the terms “installed”, “connected”, “connected”, “fixed” and other terms should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. , Or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components.
  • installed can be a fixed connection or a detachable connection. , Or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components.
  • gas fuel As used in the present invention, “gas fuel”, “gaseous fuel”, “fuel”, and “fuel gas flow” have the same meaning and can be used interchangeably.
  • control unit for example, the first to sixth control units, can select an automatic valve or a manual valve.
  • the "inner diameter of the fuel-oxidant passage is greater than the outer diameter of the fuel injection pipe” means that the fuel-oxidant passage can contain a fuel injection pipe for gas fuel to flow in the fuel injection pipe and surround the oxidizer On the outer wall of the injection pipe, a fuel-oxidant flow is formed.
  • Those skilled in the art can select the size, material, processing technology, relative position, etc. of the fuel-oxidant passage and the fuel injection pipe as required.
  • a gas fuel burner of the present invention includes:
  • the fuel-oxidant supply system 11, the first oxidizer supply system 12, and the second oxidizer supply system 13 are respectively defined by the refractory unit and metal parts.
  • the first oxidizer supply system 12 and the second oxidizer supply system 13 are respectively located on both sides of the fuel-oxidizer supply system 11, that is, the first oxidizer supply system 12 is located on one side of the fuel-oxidizer supply system 11, and the second oxidizer supply system 13 Located on the opposite side. As exemplarily shown in FIG. 1, the first oxidizer supply system 12 and the second oxidizer supply system 13 are respectively located on the upper and lower sides of the fuel-oxidizer supply system 11.
  • the first oxidant supply system 12 includes two symmetrically arranged first oxidant passages, the two first oxidant passages have a first symmetrical centerline, and the first oxidant passage has a first inlet end 1211. And the first outlet end 1212.
  • the second oxidant supply system 13 includes two symmetrically arranged second oxidant passages, the two second oxidant passages have a second symmetrical centerline, and the second oxidant passage has a second inlet end 1311 and a second outlet end 1312.
  • the fuel-oxidizer supply system 11 includes two fuel-oxidizer passages and a fuel nozzle 112.
  • the fuel-oxidant passage has a third inlet end 1111 and a third outlet end 1112.
  • the fuel nozzle 112 has a connecting portion 1121 and two fuel injection pipes 1122 arranged in parallel and symmetrically.
  • the connecting portion 1121 is provided with a fuel flow distribution chamber 11211, and each fuel injection pipe 1122 is arranged in a fuel-oxidant passage.
  • the fuel flow distribution chamber 11211 is entered from the inlet end 11212 of the connecting portion 1121, and flows out through the outlet ends 1124 of each fuel nozzle after the flow distribution.
  • the inner diameter of the fuel-oxidant passage is greater than the outer diameter of the fuel injection pipe 1122, so that there is a gap between the inner wall of the fuel-oxidant passage and the outer wall of the fuel injection pipe 1122, and the gap distance r (see Figure 4) is 1-8mm, preferably 2- 6mm to facilitate the passage of the oxidizer and facilitate the assembly of the fuel injection pipe and the fuel-oxidizer passage.
  • the fuel-oxidant passage is arranged coaxially with the fuel injection pipe therein, that is, the oxidant passage evenly surrounds the fuel injection pipe 1122.
  • One of the purposes of the oxidant passage surrounding each fuel injection pipe 1122 is to clean the passage with oxidant to prevent particles from the combustion atmosphere from entering the combustor to form deposits, which may cause malfunction and damage to the combustor.
  • several positioning components can be arranged circumferentially in the annular oxidant channel.
  • the outlet end 1124 of the fuel nozzle is located in the fuel-oxidizer passage, that is, the third outlet end 1112 of the fuel-oxidizer passage is located outside the outlet end 1124 of the fuel nozzle, and the fuel at the outlet end 1124 of the fuel nozzle is connected to the fuel-oxidizer passage.
  • the oxidant in the passage is mixed to advance the point where the combustion starts.
  • the fuel-oxidant passage and the fuel injection pipe therein are arranged eccentrically, that is, they are arranged differently.
  • a positioning member may be provided circumferentially in the oxidant channel.
  • the first outlet end 1212 of the first oxidant passage has a first turning structure 1213.
  • the first turning structure 1213 makes the first outlet end 1212 turn downward (that is, downward toward the fuel-oxidizer passage), and has a first offset angle with the body extension line of the first oxidizer passage.
  • Less than 90° preferably 1-15°, more preferably 1.5-8°
  • the second outlet end 1312 of the second oxidant passage has a second turning structure 1313, and the second turning structure 1313 makes the second outlet end 1312 turn upward (toward the fuel-oxidant passage), and is connected to the second oxidant passage.
  • the body extension line has a second offset angle, which is less than 90° (preferably 0-15°, more preferably 0-4°).
  • the third outlet end 1112 of the fuel-oxidant passage has a turning structure (not shown in the figure), so that it has a third offset angle with the body extension line of the fuel-oxidant passage.
  • the third offset angle is less than 90°, which is more Preferably, the third offset angle is less than 20°.
  • the outlet end 1124 of the fuel nozzle nested in the fuel-oxidizer passage also has a turning structure, so that the outlet end 1124 of the fuel nozzle and the body extension line of the fuel injection pipe 1122 have a third offset angle.
  • the two fuel injection pipes 1122 are symmetrically distributed, and the outlet ends 1124 of the two fuel nozzles are simultaneously turned toward or away from the symmetrical centerline of the fuel injection pipe.
  • the first outlet end of the first oxidant passage is also arranged toward or away from the first symmetric centerline. In some embodiments, the first outlet end may face downward, inward, or outward at the same time.
  • the second outlet end of the second oxidant passage is also arranged toward or away from the second symmetric centerline. In some embodiments, the second outlet end may face upward, inward, or outward at the same time.
  • At least one of the third outlet end 1112 of the fuel-oxidant passage 1112, the first outlet end 1212 of the first oxidant passage, and the second outlet end 1312 of the second oxidant passage has a diameter reducing structure.
  • the burner further includes several control units to adjust and control the flow and flow rate of the oxidant in the first oxidizer supply system, the second oxidizer supply system, and the fuel-oxidizer supply system, so that the first oxidizer supply system, The oxidizer in the second oxidizer supply system and the fuel-oxidizer supply system maintains the required ratio.
  • the burner further includes a control unit that controls the proportion of oxidant in each first oxidant passage in the first oxidant supply system.
  • the burner further includes a control unit that controls the proportion of oxidant in each second oxidant passage in the second oxidant supply system.
  • the combustor further includes a control unit that controls the fuel ratio of each fuel injection pipe in the fuel-oxidant supply system.
  • the metal piece 20 includes: a first connecting end (not shown in the figure) that communicates with and fixes the first oxidant passage, and a second connecting end (not shown in the figure) that connects and fixes the second oxidant passage ,
  • two control units realize the proportional control of the oxidant in the first oxidant passage (that is, the upper passage), the fuel-oxidant passage (that is, the middle passage), and the second oxidant passage (that is, the lower passage).
  • Both the first control unit 32 and the second control unit 31 select one of an automatic valve or a manual valve to achieve required reversal and/or oxidant ratio regulation.
  • the oxidants in the fuel-oxidizer supply system 11, the first oxidizer supply system 12, and the second oxidizer supply system 13 are independent of each other before their respective ejection outlets, and do not mix.
  • the oxidant is input through the total inlet 30, and then the flow is proportionally distributed through the first control unit 32 and the second control unit 31, such as controlling the ratio of the oxidant in the first oxidant supply system 12 It is 60% (volume ratio), the oxidizer ratio in the second oxidant supply system 13 is 30% (volume ratio), and the oxidizer ratio in the fuel-oxidizer supply system 11 is 10% (volume ratio).
  • the first offset angle is not equal to the second offset angle, so that the mixing position and time of the oxidant in the first oxidant passage and the oxidant and fuel in the second oxidant passage are different.
  • the burner under the same glass melting process conditions (the burner has a first steering structure and a second steering structure, wherein the first steering structure has a first offset angle, The second turning structure has a second offset angle) to evaluate the combustion effect, and achieve the expected effect: increasing the proportion of oxidant in the upper first oxidant passage can achieve the flame closer to the glass surface, as shown in Figure 6a; increase the lower second oxidant passage The ratio of oxidant can realize that the flame is farther away from the glass surface, as shown in Figure 6b.
  • the outlet end 1124 of the fuel nozzle has a turning structure, so that the outlet end 1124 of the fuel nozzle and the body extension line of the fuel injection pipe 1122 have a third offset angle.
  • the third offset angle is 0-20°.
  • the connecting portion 1121 of the fuel nozzle may also be provided with a control unit to control the proportion of fuel in each fuel injection pipe.
  • the cross section of the fuel flow distribution cavity 11211 of the connecting portion 1121 in FIG. 7a is Y-shaped, and the Y-shaped structure functions as a flow guide member.
  • variable diameter structure 1113 is provided in the fuel-oxidant passage.
  • the outlet end of the first oxidant passage is provided with a diameter reducing structure.
  • the outlet end of the second oxidant passage is provided with a diameter reducing structure.
  • the cross-sectional shape of the first oxidant passage is circular, elliptical, square or irregular shape; the cross-sectional shape of the second oxidant passage is circular, elliptical, square or irregular;
  • the cross-sectional shape of the fuel-oxidant passage is round, oval, square or irregular.
  • the effective cross-sectional areas of the first oxidant passage, the second oxidant passage, and the fuel-oxidant passage may be the same or different.
  • the oxidant of the first oxidizer system selects oxygen, air or oxygen-enriched air
  • the oxidant of the second oxidizer system selects oxygen, air or oxygen-enriched air
  • the oxidant of the fuel-oxidant supply system selects oxygen, air or oxygen.
  • the oxidant can be at room temperature, or it can be heated, and the temperature ranges from 5°C to 700°C.
  • the fuel of the fuel-oxidant supply system is gas fuel.
  • the method of using the gas fuel burner of the present invention is as follows:
  • the gaseous fuel is delivered from the fuel inlet of the fuel-oxidant supply system located in the middle of the burner to form a gaseous fuel flow, which passes through the internal fuel injection pipe to the fuel outlet; the outer wall of the fuel injection pipe and the fuel-oxidant passage are controlled by the second control unit The flow rate and flow rate of the oxidant are controlled to control the starting point of combustion; the first control unit controls the communication between the first oxidant passage and the second oxidant passage to adjust the oxidant in the first oxidant passage and the second oxidant passage.
  • Flow rate and flow rate make the oxidant and fuel mix according to the required time and position, and maintain the required flame direction; and control the supply of oxidant to the fuel flow direction, so that the oxidant and fuel mix according to the required time and position, and maintain the required flame direction And horizontal angle.
  • the burner of the present invention achieves the purposes of lengthening the flame, increasing the flame coverage area, keeping the flame hot spot away from the refractory material on the side wall, and avoiding local overheating of the flame by adjusting the oxidizer distribution, direction, and oxidizer-fuel direction. It can be used to adjust the flame length , Flame coverage area, rigidity and flame local atmosphere and other application scenarios. The following uses specific examples to illustrate its application.
  • the gas fuel burner shown in Fig. 1 is used.
  • the first outlet end of the first oxidant passage of the burner has a first offset angle, and the first offset angle is selected to be 2-8°
  • the second outlet end of the second oxidant passage of the combustor has a second offset angle, and the second offset angle is selected from 1-5°.
  • the nozzle structure is shown in Figure 5, that is, the outlet end of the nozzle does not have a turning structure .
  • the oxidant in this embodiment adopts pure oxygen, which is input from the main inlet 30, and the oxidant in the first oxidant supply system, the second oxidant supply system and the fuel-oxidant supply system are respectively controlled by the first control unit 32 and the second control unit 31 Flow distribution, so that the oxidizer and fuel are mixed at the required time and position, and the required flame direction is maintained.
  • the flame In the glass melting process, the flame needs to have different characteristics according to the different requirements of the process.
  • the flame is easy to sweep or impact the material pile.
  • the process purpose of the flame is easy to sweep or impact the material pile.
  • the pure oxygen flame will deflect to the refractory material close to the side wall; due to the need for a pair of regenerators equipped with the horseshoe flame glass furnace Periodic reversal of combustion in order to fully utilize the waste heat of combustion exhaust gas, so that the flame of the pure oxygen burner is periodically deflected with the reversal of the air flame, resulting in unstable hot spots of the molten glass, which is not conducive to the stability of the glass quality.
  • a gas fuel burner (burner power 0.6-1.5MW) with a first offset angle, a second offset angle and a third offset angle of the present invention is used in a horseshoe flame glass kiln Furnace fluxing.
  • the above-mentioned gas fuel burners are arranged on both sides of the air-burning horseshoe flame glass furnace.
  • the oxygen and gas fuel inside the burner can be adjusted left and right with the air flame reversal (horseshoe flame), as shown in Figure 9.
  • the oxygen distribution ratio between the solid dot side and the hollow dot side of the gas fuel burner is 70%: 30% (in terms of volume percentage).
  • the non-deflection length of the flame is extended by 1-2 times, and it also reduces the erosion of the refractory near the burner, avoids the blockage of the regenerator or damage to the grid body, and strengthens the stability of the hot spot of the glass liquid, which is beneficial to Improved glass quality.
  • the connecting portion 1121 includes: a fuel flow distribution chamber 11211, an inlet end 11212 of the connecting portion, and a fuel flow distribution chamber 11212.
  • the guide component 11213 is used to evenly distribute the fuel to the injection pipes, and its cross section is rectangular, which is the same as the cross section of the fuel air distribution cavity 11211.
  • the effective length L of the flow guiding member 11213 should not be less than the diameter D of the inlet end 11212 of the connecting part.
  • the effective length refers to the length that plays a role of diversion.
  • the distance from the central axis of the flow guiding member 11213 to the first end of the fuel flow distribution chamber 11211 is set to a
  • the distance from the central axis of the flow guiding member 11213 to the second end of the fuel flow distribution chamber 11211 is set to b, preferably a/ b ⁇ 1, wherein the first end refers to the end close to the inlet end of the connecting part, and the second end refers to the end far away from the inlet end of the connecting part.
  • a plane perpendicular to the plane where the gas fuel intake direction is located is taken as the projection plane, and the projected area of the guide member 11213 on the projection plane is not less than the cross-sectional area of the inlet end of the connecting portion on the perpendicular orthogonal plane.
  • the cross-section of the guide member can also be in a regular or irregular shape such as a circle, a circle-like shape, an ellipse, a ellipse-like shape, a trapezoid, a triangle, a cone, and the like.
  • the gas fuel burner of the present invention includes multiple oxidizer passages, gas fuel passages, and/or passages shared by the oxidizer and gas fuel, which realizes the selection of different combinations of combustion element conditions such as oxidizer and gas fuel, and realizes adjustment.

Abstract

La présente invention concerne un brûleur à combustible gazeux contenant une unité réfractaire (10), une pièce métallique (20), un système d'alimentation en combustible-oxydant (11) contenant une buse de combustible et une pluralité de passages de combustible-oxydant, un premier système d'alimentation en oxydant (12) contenant une pluralité de premiers passages d'oxydant, et un second système d'alimentation en oxydant (13) contenant une pluralité de seconds passages d'oxydant. Une extrémité de sortie (1212) de chacun des premiers passages d'oxydant est pourvue d'une première structure de rotation (1213), de telle sorte que l'extrémité de sortie (1212) du premier passage d'oxydant est orientée vers le bas, et un premier angle de décalage est formé entre l'extrémité de sortie et une ligne d'extension d'un corps du premier passage d'oxydant ; et une extrémité de sortie (1312) de chacun des seconds passages d'oxydant est pourvue d'une seconde structure de rotation (1313), de telle sorte que l'extrémité de sortie (1312) du second passage d'oxydant est orientée vers le haut, et un second angle de décalage est formé entre l'extrémité de sortie et une ligne d'extension d'un corps du second passage d'oxydant. Le brûleur peut être utilisé pour un four avec un combustible gazeux, de telle sorte que des effets de combustion, tels que le réglage de la longueur et de la direction d'une flamme, la régulation de la vitesse de combustion et la réduction des produits NOX peuvent être obtenus.
PCT/CN2019/089684 2019-05-31 2019-05-31 Brûleur à combustible gazeux WO2020237680A1 (fr)

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JPH08226621A (ja) * 1994-12-24 1996-09-03 Abb Manag Ag バーナに燃料を供給する方法と装置
UA13336U (en) * 2005-11-08 2006-03-15 Oleksandr Ivanovych Koval Method for gaseous fuel burning
CN103768968A (zh) * 2007-09-07 2014-05-07 湍流能量公司 制备用于输入到腔室中的混合物的装置
CN106016360A (zh) * 2015-03-30 2016-10-12 安萨尔多能源瑞士股份公司 燃料喷射器装置
CN108870443A (zh) * 2017-05-12 2018-11-23 通用电气公司 用于燃气涡轮机燃烧器中的具有多个出口槽的燃料喷射器
CN109489038A (zh) * 2017-11-30 2019-03-19 乔治洛德方法研究和开发液化空气有限公司 一种可调节多种燃料进料比例的燃烧器

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08226621A (ja) * 1994-12-24 1996-09-03 Abb Manag Ag バーナに燃料を供給する方法と装置
UA13336U (en) * 2005-11-08 2006-03-15 Oleksandr Ivanovych Koval Method for gaseous fuel burning
CN103768968A (zh) * 2007-09-07 2014-05-07 湍流能量公司 制备用于输入到腔室中的混合物的装置
CN106016360A (zh) * 2015-03-30 2016-10-12 安萨尔多能源瑞士股份公司 燃料喷射器装置
CN108870443A (zh) * 2017-05-12 2018-11-23 通用电气公司 用于燃气涡轮机燃烧器中的具有多个出口槽的燃料喷射器
CN109489038A (zh) * 2017-11-30 2019-03-19 乔治洛德方法研究和开发液化空气有限公司 一种可调节多种燃料进料比例的燃烧器

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