EP1580486A1 - Brûleur, procédé de combustion et méthode d'adaption d'une chaudière existante - Google Patents

Brûleur, procédé de combustion et méthode d'adaption d'une chaudière existante Download PDF

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Publication number
EP1580486A1
EP1580486A1 EP05003484A EP05003484A EP1580486A1 EP 1580486 A1 EP1580486 A1 EP 1580486A1 EP 05003484 A EP05003484 A EP 05003484A EP 05003484 A EP05003484 A EP 05003484A EP 1580486 A1 EP1580486 A1 EP 1580486A1
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EP
European Patent Office
Prior art keywords
nozzle
tertiary
air
burner
wall
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Withdrawn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
EP05003484A
Other languages
German (de)
English (en)
Inventor
Kenji Yamamoto
Hirofumi Okazaki
Osamu Itou
Masayuki Taniguchi
Takanori Yano
Kenji Kiyama
Kouji Kuramashi
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.)
Mitsubishi Power Ltd
Original Assignee
Babcock Hitachi KK
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 Babcock Hitachi KK filed Critical Babcock Hitachi KK
Publication of EP1580486A1 publication Critical patent/EP1580486A1/fr
Withdrawn legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D23/00—Assemblies of two or more burners
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C7/00—Combustion apparatus characterised by arrangements for air supply
    • F23C7/008—Flow control devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D1/00—Burners for combustion of pulverulent fuel
    • F23D1/04—Burners producing cylindrical flames without centrifugal action
    • 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
    • F23D2900/00003—Fuel or fuel-air mixtures flow distribution devices upstream of the outlet
    • 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
    • F23D2900/11402—Airflow diaphragms at burner nozzle

Definitions

  • the present invention relates to a burner, a fuel combustion method by the burner, and a method of retrofitting a boiler provided with an existing burner to turn it into a boiler with the burner made according to the present invention.
  • Patent Document 1 JP 60-26922 B (claims)
  • the patent document 1 discloses that since it is possible to control the flow of secondary air by moving the partition wall in the burner axial direction, secondary flame can be burned under the best condition from a viewpoint of low NOx emission and combustion efficiency.
  • An object of the invention is to enable a burner to be cooled while reducing NOx.
  • a burner according to the present invention comprises a primary nozzle for supplying fuel and primary air, a tubular secondary nozzle provided outside the primary nozzle so as to embrace or contact with the primary nozzle, a tubular tertiary nozzle provided outside the secondary nozzle so as to embrace or contact with the secondary nozzle, and a tubular partition wall partitioning the secondary nozzle and the tertiary nozzle and provided therebetween, wherein a flow path change member is provided on the partition wall, which flow path change member is made so as to jet outwardly a fluid flowing in the tertiary nozzle, and the partition wall is made movable in parallel with the burner axis direction.
  • the secondary nozzle is supplied with secondary air and the tertiary nozzle is supplied with tertiary air.
  • the burner axis means the central axis of the tubular primary nozzle.
  • a cross-sectional area of a tertiary air jet of the tertiary nozzle changes, and a flow rate and a flow speed of the tertiary air change.
  • the change in flow rate of the tertiary air changes a flow rate and a flow speed of the secondary air.
  • the combustion conditions change. As a result, it is possible to lower the temperatures of burner constituent components.
  • the burner of triple tube construction which is an objective of the invention, is constructed so that fuel is ignited with primary air to form reducing flame and make NOx small, and the secondary air and tertiary air are mixed with the reducing flame to burn the unburned fuel contained in the reducing flame.
  • the burner is known as an in-flame 2-stage combustion burner or an in-flame NOx reduction burner. In this burner, delay in mixing of the tertiary air makes a region of the reducing flame large, whereby low NOx emission is promoted.
  • Many burners of this construction each have a stabilizer provided at the outlet of the tubular primary nozzle, as shown in the patent document 1, and in the present invention, also, it is possible to provide a stabilizer at the outlet of the primary nozzle.
  • an inner flame stabilizing ring in which a ring-shaped projection is formed at the inside of the outlet of the tubular primary nozzle and an outer flame stabilizing ring in which a tubular projection is provided outside the outlet of the tubular primary nozzle so as to throw out in the burner axis direction, and it is preferable to provide both of them.
  • Provision of the stabilizer forms a flow recirculation region due to turbulent flow eddy in a wake flow thereof or in a flow downstream of the stabilizer, and the flow recirculation involves fuel, for example, pulverized coal particles to make them into flash points for high temperature gas and promote ignition of the pulverized coal. H ere, the secondary air bears a role to cool the stabilizer and adjust a mixing ratio of fuel and air.
  • such a member is desirable that has a taper-shaped inclined plane so that the tertiary air flows, while changing gradually the flow direction from a flow parallel with the burner axis to an outward flow.
  • the rear side, that is, the side in contact with the secondary air, of the flow path change member is desirable to be formed so that it inclines along the inclined plane of the tertiary nozzle.
  • the partition wall In order to make the partition wall move easily without making the burner construction complicated, it is desirable for the partition wall to be composed of a fixed wall and a movable wall, and for the movable wall to be move sliding on the surface of the fixed wall. Concretely, it is desirable to be composed of a portion that the tertiary air flows in parallel with the burner axis as the fixed wall and a portion that the parallel flow changes in flow direction outward as the movable wall, that is, the latter portion is a portion on which the flow path change member is provided. It is desirable for the fixed wall to provide guide rollers thereon. It is preferable to provide a stopper or stoppers for stopping movement of the movable wall on at least one of the fixed wall and the movable wall.
  • a bar-shaped member is provided, which bar-shaped member is mounted on the movable wall and moved forward and backward in the burner axis direction by manual or automatic means. At this time, extension of one end of the bar-shaped member out of the wind box of the burner makes its maintenance easy and its failure uneasy. It is possible to move the movable wall by pulling and pushing the end of the bar-shaped member by hand.
  • the burner according to the invention can be used for a burner using oil, gas, pulverized coal etc. as fuel, particularly, it is suitable for a burner using pulverized coal.
  • a pulverized coal burner sometimes combustion is assisted when a load is low by providing an oil burner for assisting combustion inside a primary nozzle.
  • an oil burner can be provided.
  • a tertiary air bypass mechanism by which a part of tertiary air is caused to bypass the tertiary nozzle into another nozzle.
  • the tertiary air bypass mechanism is formed so that when the partition wall partitioning the secondary nozzle and the tertiary nozzle is moved to a predetermined position, a part of the tertiary air bypasses the tertiary nozzle into another nozzle.
  • the part of the tertiary air can bypass the tertiary nozzle into the secondary nozzle.
  • One hole formed in each of the fixed wall and the movable wall is sufficient, however, it is preferable to provide a plurality of holes in a circumferential direction in order to increase a flow rate of the tertiary air.
  • Another of the aspects of the present invention is a combustion method in which the partition wall partitioning the secondary nozzle and the tertiary nozzle is moved to reduce the tertiary air jet cross-sectional area of the tertiary nozzle when the temperature of the flow path change member becomes higher than a set temperature in the case where fuel is burned by using the above-mentioned burner, thereby a flow speed of the tertiary air is increased.
  • another of the aspects of the present invention is a combustion method in which the partition wall is moved to increase the tertiary air jet cross-sectional area and make the flow speed of the tertiary air slow when ash comes to deposit on the burner during combustion.
  • another of the aspects of the present invention is a method of moving the partition wall to decrease the tertiary air jet cross-sectional area of the tertiary nozzle and increase the flow rate of secondary air when the burner is out of service without fuel supply to the burner. Further, another of the aspects of the present invention is a method of causing a part of tertiary air to be supplied to the tertiary nozzle to bypass the tertiary nozzle into the secondary nozzle or the primary nozzle while stopping of fuel supply to the burner.
  • another of the aspects of the present invention is a method of conducting an operation of making the tertiary air jet cross-sectional area small to increase the momentum of tertiary air and increasing the quantity of tertiary air in the case where the NOx concentration is high or fuel of bad combustibility is used.
  • FIG. 1 Another of the aspects of the present invention is a method of retrofitting a boiler provided with an existing burner having a tubular partition wall which partitions a secondary nozzle and a tertiary nozzle and is fixedly provided, wherein a part or all of the partition wall is removed and a tubular partition wall provided with a flow path change member is arranged for the fixed partition wall so as to be movable.
  • the burner according to the present invention is the in-flame 2-stage combustion type and excellent for reduction of NOx. According to the present invention, it is possible to suppress ash deposit on the burner or damage of the burner due to heat while reducing NOx.
  • the present invention by fixing the jet direction of tertiary air to a constant outward direction and changing the momentum of the tertiary air, the size or region of flow recirculation can be optimized within a range in which it does not become small, and it is possible to keep the combustion condition better. Further, even if a flow rate of tertiary air is kept constant, it is possible to make the flow speed at a downstream end of a guide sleeve high, so that the guide sleeve can be cooled.
  • the size of flame and the size of flow recirculation determined mainly by the momentum, and the size of a reducing region determined by the flow rate can be controlled independently, and a good combustion condition can be kept.
  • Figs. 1, 2, 3 and 4 each are a sectional view showing an embodiment of the burner according to the present invention.
  • the burner has a triple tube construction composed of a primary nozzle 4, a secondary nozzle 8 and a tertiary nozzle 9.
  • Primary air and pulverized coal flow from the primary nozzle 4 as shown by an arrow 11.
  • the case where pulverized coal is used as fuel is shown, however, the case where oil, gas or the like is used is also the same as the above-mentioned case.
  • the primary nozzle 4 is tubular and its cross-section is shaped in circle or squire.
  • a partition wall is provided between the secondary nozzle 8 and the tertiary nozzle 9, and the partition wall is composed of a fixed wall 1 and a movable wall 2.
  • a guide sleeve 3 is provided at an end portion of the movable wall 2. The guide sleeve 3 serves a role to change the flow of tertiary air outward. Secondary air flows from the secondary nozzle 8 as an arrow 12. Further, the tertiary air flows from the tertiary nozzle 9 as an arrow 13.
  • the movable wall 2 is connected to movement control rods 5 at connection portions 14, and handles 33 for operating are provided out of a wall 28 of a wind box.
  • a stabilizer 10 having a tubular shape is provided on an end of the primary nozzle 4.
  • An air resistor (or air resistors) 7 is provided upstream of the tertiary nozzle 9. Further, a tertiary damper 35 and a secondary damper 34 are provided upstream of the tertiary nozzle 9 and the secondary nozzle 8, respectively.
  • the flow rate and flow speed of the tertiary air, the flow rate and flow speed of the secondary air and a ratio of the tertiary air flow rate and the secondary air flow rate are changed, whereby it is possible to control the combustion conditions.
  • This is the same as changing a ratio of tertiary air momentum and secondary air momentum.
  • the present invention by keeping a jet angle of the tertiary air constant and changing an outlet cross-sectional area for the tertiary air, it is possible to change the flow rate and flow speed of the tertiary air.
  • the size of flow recirculation formed downstream of the stabilizer 10 and the guide sleeve 3 can be always made large, so that the combustion conditions can be always kept good.
  • the momentum of the tertiary air is a main factor for determining the size of flame and the size of flow recirculation.
  • the flow rate of the tertiary air is a main factor for determining the size of a reducing region. Since the momentum and the flow rate of tertiary air can be controlled independently, it is possible to make a combustion condition suitable for improvement on flame stabilization and NOx reduction. Further, it is possible to change independently the momentum of tertiary air and the flow rate of secondary air, whereby the secondary air can be used for other objects such as cooling of the stabilizer 10, air supply to the fuel flowing in the primary nozzle, etc.
  • Fig. 3 shows a III-III section of Fig. 1.
  • Fig. 4 is shows a IV-IV section of Fig. 1.
  • Rollers 23 are mounted so that the movable wall 2 smoothly moves.
  • four (4) movement con trol rods 5 are provided, and they are suitable for parallel movement of the movable wall 2 to the burner axis.
  • the rollers 23 are mounted on the fixed wall 1, but they also can be mounted on the movable wall 2.
  • the movable wall 2 has a possibility that the temperature thereof rises when the flow rate of tertiary air is small. Damage due to burning or deformation are apt to occur when the temperature of the member rises higher than a temperature that the member subjected to heat is sustainable to the heat. It is better to use material of high heat resistance for the movable wall 2.
  • Fig. 5 is a sectional view of another embodiment of the burner according to the present invention.
  • the present embodiment 2 differs from the embodiment 1 in that motor boxes 6 are provided and the movement of the movable wall 2 is electrically driven. Further, in Fig. 5, although the motor boxes 6 are installed inside the wind box, it is possible to install them outside the wind box. Further, an air resistor 15 is provided in the secondary nozzle 8. It is possible to control the flow rate and swirling force by combining the air resistor 15 and the secondary damper 34.
  • a merit of driving the movable wall 2 by the motor 6 is that the movable wall 2 is controlled according to the algorithm of combustion adjustment described in the embodiment 1, and an optimum combustion condition can be always kept. As others, as explained hereunder, it is possible to provide a suitable operation condition by changing flow rate conditions.
  • the burner is out of service without fuel being supplied. Under such a condition, there is a possibility that the burner being out of service is heated by radiation heat from other burners and the temperatures of the guide sleeve 3, the stabilizer 10, etc. ri se. To prevent this phenomenon, it is necessary to supply air to the burner even when it is out of service.
  • a flow rate of air to be supplied to the burner being out of service is large, an air adjustment quantity becomes small. Therefore, it is necessary to make small the flow rate of air to be supplied to the burner being out of service.
  • the flow rate is decreased under the condition that the movable wall 2 is fixed, the flow speeds of tertiary air and secondary air decrease, and it is impossible to sufficiently cool the guide sleeve 3 and the stabilizer 10.
  • the burner is turned into the condition as shown in Fig. 6 under the condition that the burner is out of service. That is, the movable wall 2 is moved to the near side, the jet portion area of tertiary air is made almost zero. Since the flow speed at the end of the guide sleeve 3 is large, the guide sleeve 3 can be cooled even with a small quantity of tertiary air. Further, by increasing the flow rate of secondary air, it is possible to increase the flow speed of secondary air and effectively cool the stabilizer 10. Since secondary air is smaller in flow rate than tertiary air, it is possible to decrease the whole flow rate of air even if the secondary air is increased.
  • the tertiary nozzle is provided with the air resistor 7.
  • the air resistor 7 is for controlling a combustion field by swirling the tertiary air, because in the present invention the same effect can be attained by moving the movable wall 2 forward and backward in the burner axis direction.
  • the air resistor 15 of the secondary nozzle is not essential, either. In this case, the secondary damper 34 is necessary because any method of adjusting a flow rate of secondary air comes not to exist thereby.
  • the controller 101 receives signals from measuring installment and sends signals for moving movable parts of the burner 102.
  • the signals are signals for driving a movable wall moving motor 111, an air resistor 7 driving motor 112, a tertiary damper driving motor 113, a secondary damper driving motor 114, an air resistor 15 driving motor 115, etc.
  • the controller 101 has a soft wear incorporated therewith, which soft wear is for realizing the algorithm described in the embodiment 1.
  • the measuring installment installed in the burner includes a flame detector 107, a temperature detector or thermometer 108 for burner metal, a pressure gage 109 for combustion air, a flow meter 110 for burner air, etc.
  • the measuring instrument mounted on a boiler 116 includes a temperature detector or thermometer 103 for steam, an ash deposition sensor 104, a NOx sensor 105, a unburned fuel sensor 106 for measuring CO concentration and unburned components of solids, etc.
  • the flame detector 107 is u sed.
  • a detector that can detect luminous intensity is good. It is possible to evaluate goodness of the stabilization of flame by the luminous intensity and change an operation condition to such an operation condition that the stabilization of flame becomes good when the stabilization is lowered.
  • the NOx sensor 105 is better to be installed at a downstream side of the boiler 116, at which the reaction has terminated.
  • Figs, 8, 9, 10 and 11 are sectional views showing another embodiment of the burner according to the present invention.
  • holes 16, 32 for tertiary air bypass are formed in the fixed wall 1 and the movable wall 2 of the partition wall partitioning the secondary nozzle 8 and the tertiary nozzle 9, respectively, and tertiary air flows through those holes into the secondary nozzle 8 as shown by an arrow 17, bypassing the tertiary nozzle 9.
  • the tertiary air not always bypasses, but the tertiary air is flowed into the secondary nozzle under the condition that the movable wall 2 is moved to the near side and fuel supply is out of service as shown in Fig. 8.
  • Fig. 9 shows an example in which the tertiary air having bypassed the tertiary nozzle 9 is supplied to the primary nozzle.
  • holes are formed in the tubular wall of the primary nozzle 4, and bypass pipes 18 connect between the holes provided in the fixed wall 1 and the holes formed in the primary nozzle.
  • the burner is out of service, almost all air is not supplied in the primary nozzle, and the inner side of the stabilizer cannot be cooled. Therefore, the constitution that tertiary air is supplied along the wall of the primary nozzle under the condition that the burner is out of service is taken as shown in Fig. 9.
  • tertiary air flows into the primary nozzle 4, so that it is possible to effect stable combustion.
  • tertiary air always bypasses and flows into the primary nozzle 4 is also considered, combustion is promoted when the load is high and the possibility of explosion and ash deposit becomes high, so that it is better to take the construction that the smaller the load becomes, the more the flow rate of air is increased.
  • Fig. 10 shows an example in which bypassed secondary air is supplied to the primary nozzle.
  • holes are formed in the tube wall of the primary nozzle 4, and air is supplied from the secondary nozzle to the primary nozzle through bypass pipes 18.
  • the movable wall 2 is moved to the near side and the air resistor 15 is closed, whereby secondary air is supplied along the wall of the primary nozzle.
  • Fig. 11 shows an example that bypassed tertiary air is used for cooling a pulverized coal concentrator 20 provided inside the primary nozzle 4.
  • the pulverized coal concentrator 20 is formed so as to gradually narrow the flow path of the primary nozzle toward a downstream side and gradually widen the flow path toward a further downstream side as shown in Fig. 11, and serves to make higher the pulverized coal concentration on the wall side of the primary nozzle.
  • the flow rate of primary air is small, so that it is difficult to cool the pulverized coal concentrator 20. Therefore, such a construction is taken that tertiary air flows to the pulverized coal concentrator 20 under the condition of being out of the service.
  • Fig. 11 shows an example that bypassed tertiary air is used for cooling a pulverized coal concentrator 20 provided inside the primary nozzle 4.
  • the pulverized coal concentrator 20 is formed so as to gradually narrow the flow path of the primary nozzle toward a downstream side and gradually widen the flow path toward
  • bypass tubes 19 are provided, and each of the bypass tubes 19 connects the hole of the fixed wall 1 and the hole of the primary nozzle 4 and is extended to the pulverized coal concentrator 20.
  • the air used for cooling the pulverized coal concentrator 20 is jetted into the furnace from the end of the pulverized coal concentrator 20.
  • the pulverized coal burner is provided with an oil burner formed so as to spray oil 21 for assisting combustion from an atomizer 31.
  • Fig. 11 shows such an example.
  • Fig. 12 is a sectional view of a burner of another embodiment of the present invention.
  • the motor boxes 6 are mounted out of the wall 28 of the wind box.
  • the secondary air and tertiary air are high temperature of 300°C or more, and in some cases it includes ashes.
  • the motor boxes 6 are mounted in such a place, they may become out of order, and if they have been out of order, it is difficult to repair them.
  • the fixed wall 1 is made to be shorter than that in Fig. 5.
  • a stopp er 2 on the movable wall 2.
  • a stopp er 2 on the movable wall 2.
  • the cooling efficiency is raised by providing cooling fins 22 on the movable wall 2 and the guide sleeve 3.
  • the cooling fins 22 also serve to increase the strength of them.
  • temperature detectors of thermostats 29 are mounted on the guide sleeve 3 and the stabilizer 10, respectively.
  • the position of the movable wall 2 can be controlled, based on values of the thermostats.
  • the temperature of the end of the guide sleeve is higher than a limit value
  • the flow speed of the tertiary air is slow, so that the operation that the flow rate of the secondary air is reduced and the flow speed of the tertiary air is raised can be conducted.
  • the temperature of the stabilizer is higher than a limit value
  • the operation condition of the example 7 of the embodiment 1 can be taken. In the case where the temperatures of the guide sleeve and the stabilizer are higher than the limit values, respectively, the quantity of the whole air can be increased.
  • Figs. 13, 14 and 15 are a sectional view taken along XIII-XIII, XIV-XIV and XV-XV of Fig. 12, respectively and show various configuration examples.
  • the configurations shown in Figs. 13 to 15 can be used for not only the burner of Fig. 12, but the burner of Fig. 1.
  • Fig. 13 shows an example that four movement control rods 5 are moved by gears 26 and power transmission shafts 27 driven by one motor 25. This has merits that the number of motors can be reduced and displacements of the movement control rods 5 can be made always equal.
  • Fig. 14 is an example that the motor 25 shown in Fig. 13 is not taken and the movement control rods 5 are moved by rotation of a manual handle 27.
  • Fig. 15 shows an example that four motors 25 are used, and even if one of the motors 25 has been out of order, the rods 5 can be driven by the other motors.
  • Figs. 16, 17 and 18 are sectional views of another embodiment of the burner according to the present invention.
  • Fig. 17 is a sectional view taken along XVII-XVII of Fig. 16
  • Fig. 18 is a sectional view taken along XVIII-XVIII of Fig. 16.
  • a difference from Fig. 1 is that the burner is not made of triple tubes, a primary nozzle 4 and a secondary nozzle 8 each are made of a square tube, and a tertiary nozzle 9 is separated into an upper portion and a lower portion and mounted.
  • it is possible to make an optimum operational condition by moving a movable wall 2 having a guide sleeve 3 forward and backward in a similar manner to the embodiment 1.
  • movable wall 2 since the movable wall 2 is separated into an upper portion and a lower portion, there is a possibility that they are not moved forward and backward in such a way that they are interlocked. Therefore, as shown in Fig. 17, it is possible to connect the movable walls 2 by connecting plates 36.
  • handles 33 are mounted at four positions, and the movable wall 2 is moved by manual, however, it can be moved by a motor or motors as in the embodiment 2.
  • Fig. 19 the abscissa thereof shows loads of the burner. Air for cooling is flowed even at a burner load of 0%, and in this case, in order to cool the stabilizer 10, the movable wall 2 is moved so that the outlet of tertiary air becomes a condition near to full closing.
  • the coal firing burner since combustion is assisted by oil at the time of a low load, oil and coal are supplied. When it reached to a load at which combustion can be performed with only coal, a flow rate of oil is made zero.
  • the present invention makes it possible to cool the burner while reducing NOx by controlling the combustion condition optimum.
  • the possibility of utility of the burner according to the present invention is large to make thermal failure of the burner less.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
EP05003484A 2004-03-24 2005-02-18 Brûleur, procédé de combustion et méthode d'adaption d'une chaudière existante Withdrawn EP1580486A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2004086006 2004-03-24
JP2004086006A JP4261401B2 (ja) 2004-03-24 2004-03-24 バーナと燃料燃焼方法及びボイラの改造方法

Publications (1)

Publication Number Publication Date
EP1580486A1 true EP1580486A1 (fr) 2005-09-28

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EP05003484A Withdrawn EP1580486A1 (fr) 2004-03-24 2005-02-18 Brûleur, procédé de combustion et méthode d'adaption d'une chaudière existante

Country Status (7)

Country Link
US (1) US20050211142A1 (fr)
EP (1) EP1580486A1 (fr)
JP (1) JP4261401B2 (fr)
KR (1) KR20060042080A (fr)
CN (1) CN1321288C (fr)
AU (1) AU2005200690B9 (fr)
CA (1) CA2496644C (fr)

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WO2010022747A1 (fr) * 2008-08-26 2010-03-04 Fev Motorentechnik Gmbh Production d'un gaz de vieillissement pour des systèmes de traitement des gaz d'échappement
EP2592341A1 (fr) * 2011-11-09 2013-05-15 Fortum OYJ Brûleur à combustible pulvérisé

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JP2009079794A (ja) * 2007-09-25 2009-04-16 Babcock Hitachi Kk 固体燃料バーナ、固体燃料バーナを用いた燃焼装置とその運転方法
KR100858981B1 (ko) * 2007-09-28 2008-09-17 한국전력공사 초임계 압력 석탄 보일러 고성능 버너 장치
US20090084346A1 (en) * 2007-09-28 2009-04-02 General Electric Company Gas flow injector and method of injecting gas into a combustion system
US20110053102A1 (en) * 2008-04-10 2011-03-03 Babcock-Hitachi Kabushiki Kaisha Solid fuel burner, combustion apparatus using solid fuel burner, and method of operating the combustion apparatus
JP5332389B2 (ja) * 2008-08-08 2013-11-06 株式会社Ｉｈｉ バーナ
US20100175380A1 (en) * 2009-01-13 2010-07-15 General Electric Company Traversing fuel nozzles in cap-less combustor assembly
JP5288269B2 (ja) * 2009-03-26 2013-09-11 住友大阪セメント株式会社 燃焼装置
JP5369899B2 (ja) 2009-05-27 2013-12-18 株式会社Ｉｈｉ バーナ
JP2011127836A (ja) 2009-12-17 2011-06-30 Mitsubishi Heavy Ind Ltd 固体燃料焚きバーナ及び固体燃料焚きボイラ
JP5374404B2 (ja) 2009-12-22 2013-12-25 三菱重工業株式会社 燃焼バーナおよびこの燃焼バーナを備えるボイラ
MX354826B (es) 2011-04-01 2018-03-21 Mitsubishi Heavy Ind Ltd Quemador de combustión, quemador de combustión de combustible sólido, hervidor de combustión de combustible sólido, hervidor y método para poner en operación el hervidor.
JP5794419B2 (ja) * 2011-07-29 2015-10-14 三菱日立パワーシステムズ株式会社 固体燃料バーナ
JP5897363B2 (ja) * 2012-03-21 2016-03-30 川崎重工業株式会社 微粉炭バイオマス混焼バーナ
CN103574634B (zh) * 2012-08-03 2015-12-16 江阴德尔热能机械有限公司 一种空气流通截面调节装置
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AU2005200690A1 (en) 2005-10-13
JP4261401B2 (ja) 2009-04-30
JP2005273973A (ja) 2005-10-06
CN1321288C (zh) 2007-06-13
KR20060042080A (ko) 2006-05-12
AU2005200690B2 (en) 2006-05-11
AU2005200690B9 (en) 2006-06-15
CA2496644A1 (fr) 2005-09-24
CA2496644C (fr) 2009-07-07
US20050211142A1 (en) 2005-09-29

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