EP0129001A1 - Düsenmündung eines Steubbrenners mit Verteilerplatte dafür - Google Patents

Düsenmündung eines Steubbrenners mit Verteilerplatte dafür Download PDF

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Publication number
EP0129001A1
EP0129001A1 EP84102001A EP84102001A EP0129001A1 EP 0129001 A1 EP0129001 A1 EP 0129001A1 EP 84102001 A EP84102001 A EP 84102001A EP 84102001 A EP84102001 A EP 84102001A EP 0129001 A1 EP0129001 A1 EP 0129001A1
Authority
EP
European Patent Office
Prior art keywords
inner shell
nozzle tip
furnace
trailing edge
splitter plates
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP84102001A
Other languages
English (en)
French (fr)
Other versions
EP0129001B1 (de
Inventor
John Grusha
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.)
Combustion Engineering Inc
Original Assignee
Combustion Engineering Inc
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 Combustion Engineering Inc filed Critical Combustion Engineering Inc
Publication of EP0129001A1 publication Critical patent/EP0129001A1/de
Application granted granted Critical
Publication of EP0129001B1 publication Critical patent/EP0129001B1/de
Expired legal-status Critical Current

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Classifications

    • 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 
    • F23C5/00—Disposition of burners with respect to the combustion chamber or to one another; Mounting of burners in combustion apparatus
    • F23C5/02—Structural details of mounting
    • F23C5/06—Provision for adjustment of burner position during operation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D1/00—Burners for combustion of pulverulent fuel
    • F23D1/02—Vortex burners, e.g. for cyclone-type combustion apparatus
    • 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
    • F23C7/02—Disposition of air supply not passing through burner
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D1/00—Burners for combustion of pulverulent fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2201/00—Burners adapted for particulate solid or pulverulent fuels
    • F23D2201/10—Nozzle tips
    • F23D2201/101—Nozzle tips tiltable

Definitions

  • the present invention relates to improving the low load operation of fuel burners for use in pulverized coal-fired furnaces and, more particularly, to improving low load operation of fuel-air admission assemblies for directing a pulverized fuel-air mixture into the furnace by what is known as the tangential method of firing.
  • pulverized fuel such as coal in a conventional steam generator furnace
  • tangential firing One common method of firing a pulverized fuel such as coal in a conventional steam generator furnace is known as tangential firing.
  • pulverized coal is introduced to the furnace in a primary air stream through burners, termed fuel-air admission assemblies, located in the corners of the furnace.
  • the fuel-air streams discharged from these assemblies are aimed tangentially to an imaginary circle in the middle of the furnace. This creates a fireball which serves as a continuous source of ignition for the incoming coal.
  • Each fuel-air admission assembly is comprised of a fuel delivery pipe through which pulverized fuel entrained in air passes to the furnace, a secondary air conduit surrounding the fuel delivery pipe through which additional air is introduced into the furnace, and a nozzle tip which is pivotally mounted to the outlet end of the fuel delivery pipe.
  • a typical nozzle tip comprises inner and outer shells disposed coaxially in spaced relationship thereby defining a first flow passageway within the inner shell through which the pulverized fuel and air mixture discharging from the fuel delivery pipe passes into the furnace and a second flow passageway in the annular space between the inner and outer shells through which the secondary air discharging from the secondary air conduit passes into the furnace.
  • one or more splitter plates are disposed within the inner shell parallel to the axis of the nozzle tip to divide the flow passageway within the inner shell into multiple subpassages.
  • the nozzle tip may be tilted upward or downward in order to direct the fuel-air mixture, discharging into the furnace from the fuel delivery pipe upwardly or downwardly as a means controlling the temperature of the superheated steam produced in heat exchange surface typically disposed at the outlet of the surface in'the manner taught by U.S. Patent 2,363,875.
  • a flame is established at one corner which in turn supplies the required ignition energy to stabilize the flame emanating from the corner downstream of and laterally adjacent to it.
  • the flames emanating from each corner become shorter and, as a consequence, a reduction in the amount of ignition energy available to the downstream corner occurs.
  • auxiliary fuel such as oil or natural gas must be introduced in each corner adjacent to the pulverized coal-air stream to provide additional ignition energy thereby insuring that a flameout and resultant unit trip will not occur.
  • This patent discloses an improved fuel-air admission assembly incorporating a split coal bucket which permits a pulverized coal-fired furnace to be operated at low loads without use of auxiliary fuel to provide stabilization.
  • the split coal bucket comprises independent upper and lower coal nozzles pivotally mounted to the coal delivery pipe, the upper and lower coal nozzles being independently tiltable.
  • the primary air and pulverized coal stream discharging from the coal delivery pipe is split into an upper and a lower coal-air stream and independently directed into the furnace by tilting the upper coal nozzle upward and the lower coal nozzle downward.
  • an ignition stabilizing pocket is established in the locally low pressure zone created in the void between the spread apart coal-air streams. Hot combustion products are drawn, i.e., recirculated into this low pressure zone, thus providing enough additional ignition energy to the incoming fuel to stabilize the flame.
  • the present invention provides a novel tip for a burner on a pulverized fuel fired furnace which is particularly adapted to provide improved ignition stability during low load operation of the furnace.
  • the nozzle tip of the present invention comprises an open-ended inner shell defining a flow passageway through which a mixture of pulverized fuel and transport air passes from the burner into the furnace, an open-ended outer shell spaced from and surrounding the inner shell thereby defining an annular flow passage therebetween through which additional air for combustion passes from the burner into the furnace, and plate means disposed within the inner shell for dividing the flow passageway therethrough into first and second flow passages which extend from the inlet of the inner shell to the outlet of the inner shell in a diverging manner with a void region established therebetween through which flow is precluded.
  • the coal-air mixture discharging from the burner is split by the plate means into a first stream which is directed into the furnace through the first flow passageway through the inner shell and a second stream which is directed into the furnace through the second flow passageway of the inner shell.
  • the coal-air mixture is directed into the furnace in two diverging streams.
  • an ignition stabilizing pocket is established in the locally low pressure zone created between the spread-apart and diverging coal-air streams in the furnace just downstream of the void region established between the diverging first and second flow passageways through the inner shell of the nozzle tip. Coal is concentrated in this pocket and hot combustion products are drawn back into the pocket from the flame to provide additional ignition energy to the incoming fuel to stabilize the flame.
  • the plate means comprises first and second splitter plates disposed within the inner shell with their leading edge portion disposed transversely across the flow passageway of the inner shell at the inlet thereof and their trailing edge portion extending transversely across the flow passageway of the inner shell at the outlet end thereof.
  • the first and second splitter plates converge along a line at the inlet end of the inner shell and extend outwardly therefrom in a diverging manner toward the outlet end of the inner shell. In this manner, the first and second splitter plates divide the flow passageway through the inner shell into a first flow passage bounded by the first splitter plate and the inner shell and a second flow passage bounded by the second splitter plate and the inner shell.
  • the first and second flow passages diverge in the direction of flow through the nozzle tip and are separated by a void region established between the first and second divergent splitter plates through which flow is precluded. Accordingly, a low pressure recirculation zone will be established in the furnace just downstream of the void region of the nozzle tip between the diverging fuel-air streams as they discharge into the furnace from the divergent first and second flow passages through the inner shell.
  • ignition stability may be further enhanced by providing splitter plates having their trailing edge portion scalloped.
  • the trailing edge portion of a splitter plate is preferably scalloped by forming the trailing edge portion of the splitter plate of a plurality of longitudinally elongated strips which extend longitudinally outward from the leading edge portion of the splitter plate in side-by-side relationship transversely across the flow passageway through the inner shell.
  • a first portion of the trailing edge strips, disposed alternately between a second portion of the trailing edge strips, is bent radially away from the leading edge of the splitter plate in one direction while the second portion of the trailing edge strips is bent radially away from the leading edge portion of the splitter plate in a direction opposite to that in which the first portion of the trailing edge strips are bent away from the leading edge portion of the splitter plate.
  • a scalloped edge is provided along the trailing edge portion of the splitter plates which serves to generate turbulence along the boundries between the fuel-air streams discharging from the divergent flow passages and the void region established therebetween whereby the mixing of pulverized fuel and hot combustion products drawn into the low pressure recirculation zone formed in the furnace just downstream of the void region of the nozzle tip thereby further stabilizing ignition.
  • a plurality of coal-air admission assemblies 10 are arranged in the corners of the furnace in a vertical column separated by auxiliary air compartments 20 and 20'.
  • auxiliary air compartments 20 and 20' are adapted to accommodate an oil or gas burner 22, which is used when starting and warming up the boiler and which, in the prior art, is used when necessary to provide additional ignition energy to stabilize the coal flame when operating the furnace at low loads.
  • Each coal-air admission assembly 10 comprises a coal delivery pipe 12 extending therethrough and opening into the furnace, and a secondary air conduit 14 which surrounds coal delivery pipe 12 and opens into an air supply plenum 18, termed a windbox.
  • Pulverized coal entrained in transport air is discharged into the furnace through the coal delivery pipes 12 from a supply source such as a pulverizer wherein the coal is dried and comminuted.
  • Secondary air is passed into the furnace through the secondary air conduits 14 as a stream surrounding the pulverized coal and transport air stream discharged from each coal delivery pipe 12. Additional combustion air is passed into the furnace from windbox 18 through the auxiliary air compartments 20.
  • Each coal delivery pipe 12 is provided with a nozzle tip, often referred to as a coal bucket, which is pivotally mounted to the coal delivery pipe 12 so that the nozzle tip may be tilted about an axis 16 transverse to the longitudinal axis of the coal delivery pipe 12 in order to direct the pulverized coal and air mixture into the furnace at either an upward angle or a downward angle as a means of controlling the position of the fire ball within the furnace whereby the temperature of the superheat steam leaving the steam generator, not shown, is controlled in the manner taught by U.S. Patent 2,363,875 issued November 28, 1944 to Kreisinger et al for "Combustion Zone Control". Nozzle tips 28, shown in Figure 2, are typical of the standard prior art nozzle tip commonly mounted to the coal delivery pipe 12.
  • the typical prior art nozzle tip 28 is comprised of a open-ended inner shell defining therethrough a flow passageway through which the mixture of pulverized coal and transport air passes from the coal delivery pipe 12 into the furnace surrounded by an open-ended outer shell spaced therefrom so as to define an annular flow passage therebetween'through which secondary air passes from the secondary air conduit 14 into the furnace.
  • the inner and outer shell are adapted to be mounted to the outlet end of the coal delivery pipe 12 by means of a pivot pin so as to be tiltable about axis 16.
  • one or more baffle plates 26 are disposed within the inner shell of the prior art nozzle tip 28 along an axis parallel to the nozzle tip and the coal delivery pipe 12 so as to form two or more parallel flow passages within the inner shell through which the pulverized coal and air passes from the coal delivery pipe 12 into the furnace as a single stream subdivided into one or more parallel and contiguous substreams.
  • ignition became unstable and supplemental fuel, such a natural gas or oil, had to be fired in order to provide sufficient additional ignition energy to stabilize the ignition of the single coal-air streams discharging from nozzle tips 28.
  • Nozzle tip 30 which inherently provides improved ignition stability during low load operation.
  • Nozzle tip 30 comprises an open-ended inner shell 32, an open-ended outer shell 34 spaced from and surrounding the inner shell 32, and plate means 40 disposed within the inner shell for dividing the interior of the inner shell into first and second flow passageway.
  • the inner shell 32 has an outlet end 36 opening into the furnace and an inlet end 38 adapted to be mounted about the outlet end of the coal delivery pipe 12 so as to receive the pulverized coal and air discharging therefrom.
  • An annular flow passageway 50 is defined between the inner shell 32 and the outer shell 34 through which additional combustion air passes from the secondary air conduit 14 into the furnace.
  • plate means 40 is disposed within the inner shell 32 for dividing the flow passage therethrough into first and second flow passages 52 and 54, respectively, extending from the inlet end 38 of the inner shell 32 to the outlet end 36 thereof in a diverging manner with a void region 56 established therebetween through which flow is precluded.
  • the nozzle tip accomplishes the desired objective of improving ignition stability at low load operation by providing two separate and distinct diverging flow passages 52 and 54 through the inner shell 32 which are spaced to lie above and below a central void 56 through which flow is precluded.
  • the stream of pulverized fuel and transport air discharging from the coal delivery pipe 12 into the nozzle tip 30 will be split into two portions.
  • a low pressure zone 80 which serves as an ignition stabilizing region, will be created in the furnace at the outlet of the nozzle tip 30 downstream of the void region 56 between the diverging coal-air streams 60 and 70. Coal particles from the streams 60 and 70 will be drawn into the low pressure zone 80 from the diverging coal-air streams 60 and 70.
  • Ignition will be stabilized because a portion of the hot combustion products formed during the ignition process are recirculated within the low pressure ignition stabilizing zone 80, thereby providing sufficient ignition energy for igniting coal particles which are subsequently drawn into the zone 80 from the diverging coal-air streams 60 and 70.
  • the plate means 40 comprises first and second splitter plates 41 and 42 disposed within the inner shell 32 so as to divide the interior of the inner shell 32 into a first flow passage 52 bounded by the first splitter plate 41 and the inner shell 32 and a second flow passage 54 bounded by the second splitter plate 42 and the inner shell 32.
  • Each of the splitter plates 41 and 42 has a leading edge portion 43 disposed transversely across the flow passage of the inner shell 32 at the inlet end 38 thereof and a trailing edge portion 44 extending transversely across the flow passage of the inner shell 32 at the outlet end 36 thereof.
  • the first and second splitter plates 41 and 42 converge along the line at the inlet end 38 of the inner shell 32 and extend outwardly therefrom in a diverging manner, preferably at an included angle of approximately 20°, toward the outlet end 36 of the inner shell 32 and defined therebetween a void region 56 through which flow is precluded.
  • the trailing edge portion 44 of the first and second splitter plates 41 and 42 is scalloped as best seen in Figures 4, 5 and 6.
  • the trailing edge portion 44 thereof comprises a plurality of longitudinally elongated strips extending longitudinally outward from the leading edge portion 43 of the splitter plates in side-by-side relationship transversely across the flow passageway of the inner shell 32.
  • a first portion 45 of the trailing edge strips extending longitudinally outward from the leading edge portion of the first and second splitter plates is disposed alternately across the inner shell 32 between a second portion 47 of the trailing edge strips and are bent radially away from the second portion 47 of the trailing edge strips thereby forming the desired scalloped trailing edge on the splitter plates 41 and 42.
  • the first portion 45 of the trailing edge strips are bent radially away from the leading edge portion 43 of each splitter plate in one direction while the second portion 47 of the trailing edge strips is bent radially away from the leading edge portion 43 of each of the splitter plates in the direction opposite to that in which the first portion 45 are bent.
  • a turbulent zone is established along the interface between each of the coal-air streams 60 and 70 in the low pressure recirculation zone 80 formed therebetween.
  • Such a turbulent interface insures that coal and air will be drawn out of the coal-air streams and mixed thoroughly with hot ignition products in the low pressure recirculation zone 80 thereby further enhancing ignition stability.
  • filler plates 46 which extend transversely between adjacent first and second portions 45 and 47 of the trailing edge strips along the interface between the trailing edge strips, as best seen in Figures 5 and 6, to preclude the flow of pulverized fuel and transport air across the interface formed between adjacent diverging leading edge strips 45 and 47. If a significant amount of pulverized fuel and transport air were allowed to pass into the void region 56 through the divergent trailing edge strips 45 and 47, the establishment of a low pressure recirculation zone between the diverging coal-air streams 60 and 70 could be adversely affected.
  • the splitter plates 41 and 42 may be arranged within the inner-.shell 32 of the nozzle tip 30 so that the scalloped trailing edge portions thereof are disposed in an in-line arrangement as shown in Figure 5 or a staggered arrangement as shown in Figure 6.
  • splitter plates 41 and 42 are shown in the drawing as being fabricated of various pieces of plate metal welded together, it is to be understood that the splitter plates 41 and 42 may also be readily manufactured by well-known casting processes. Additionally, it is to be appreciated that the lifetime of the splitter plates within the coal flow passage through the inner shell 32 may be enhanced in accordance with the teachings of U.S. Patent 4,356,975 issued November 2, 1982 to Chadshay for "Nozzle Tip for Pulverized Coal Burner” by manufacturing the splitter plates 41 and 42 with their leading edge portion 43 formed of a relatively abrasion resistant material such as silicon carbide or Ni-hard, and their trailing edge portion 44 formed of a material relatively resistant to high temperatures such as certain well-known stainless steels.
  • a relatively abrasion resistant material such as silicon carbide or Ni-hard

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion Of Fluid Fuel (AREA)
  • Pre-Mixing And Non-Premixing Gas Burner (AREA)
EP84102001A 1983-04-22 1984-02-25 Düsenmündung eines Steubbrenners mit Verteilerplatte dafür Expired EP0129001B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US48755283A 1983-04-22 1983-04-22
US487552 1983-04-22

Publications (2)

Publication Number Publication Date
EP0129001A1 true EP0129001A1 (de) 1984-12-27
EP0129001B1 EP0129001B1 (de) 1988-06-15

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EP84102001A Expired EP0129001B1 (de) 1983-04-22 1984-02-25 Düsenmündung eines Steubbrenners mit Verteilerplatte dafür

Country Status (10)

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EP (1) EP0129001B1 (de)
JP (1) JPS59205510A (de)
KR (1) KR890000326B1 (de)
AU (1) AU567340B2 (de)
CA (1) CA1230783A (de)
DE (1) DE3472154D1 (de)
ES (1) ES531781A0 (de)
IN (1) IN161339B (de)
MX (1) MX158316A (de)
ZA (1) ZA841738B (de)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2689211A1 (fr) * 1992-03-30 1993-10-01 Stein Industrie Busette orientable en matériau réfractaire pour injection d'air et de combustible dans les brûleurs de chaudières de centrales thermiques.
WO1994027086A1 (en) * 1993-05-13 1994-11-24 Combustion Engineering, Inc. INTEGRATED LOW NOx TANGENTIAL FIRING SYSTEM
EP0650013A1 (de) * 1993-10-26 1995-04-26 ROLLS-ROYCE POWER ENGINEERING plc Brenner für feste Brennstoffe
EP0723113A2 (de) * 1995-01-17 1996-07-24 Foster Wheeler Energy Corporation Schwenkbarer Brenner mit Dichtung zur Erzeugung einer aufgeteilten Strömung
CN101718431B (zh) * 2009-12-28 2011-03-23 上海交通大学 电站燃煤锅炉直流燃烧器喷口结构
EP2515039A1 (de) * 2009-12-17 2012-10-24 Mitsubishi Heavy Industries, Ltd. Festkraftstoffbrenner und festkraftstoffkocher
US9869469B2 (en) 2009-12-22 2018-01-16 Mitsubishi Heavy Industries, Ltd. Combustion burner and boiler including the same
EP3279562A4 (de) * 2015-03-31 2018-07-25 Mitsubishi Hitachi Power Systems, Ltd. Brenner und kessel
US10458645B2 (en) 2015-03-31 2019-10-29 Mitsubishi Hitachi Power Systems, Ltd. Combustion burner and boiler provided with same
US10677457B2 (en) 2015-09-11 2020-06-09 Mitsubishi Hitachi Power Systems, Ltd. Combustion burner and boiler equipped with the same

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2791029B2 (ja) * 1988-02-23 1998-08-27 バブコツク日立株式会社 微粉炭バーナ
KR100325948B1 (ko) * 1999-04-22 2002-02-27 김병두 보일러의 미분탄 공급 노즐팁 어셈블리
JP5271680B2 (ja) * 2008-12-05 2013-08-21 三菱重工業株式会社 旋回燃焼ボイラ
JP5344898B2 (ja) * 2008-12-12 2013-11-20 三菱重工業株式会社 旋回燃焼ボイラ
JP5344897B2 (ja) * 2008-12-12 2013-11-20 三菱重工業株式会社 旋回燃焼ボイラ
JP2010139182A (ja) * 2008-12-12 2010-06-24 Mitsubishi Heavy Ind Ltd 旋回燃焼ボイラ
JP6632841B2 (ja) * 2015-09-11 2020-01-22 三菱日立パワーシステムズ株式会社 燃焼バーナ及びこれを備えたボイラ

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE504814C (de) * 1927-04-12 1930-08-08 Adolf Steinbrueckner Kohlenstaubbrenner mit Zusatzluftzufuehrung und mit innerem Verteilkoerper fuer das Brennstoffluftgemisch
DE913092C (de) * 1951-04-06 1954-06-08 Kohlenscheidungs Ges Mit Besch Brenner fuer Kohlenstaub od. dgl. feinverteilten Brennstoff
DD127792A1 (de) * 1976-08-20 1977-10-12 Gerd Boche Kohlenstaubbrenner,insbesondere fuer dampferzeuger

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2608168A (en) * 1949-10-21 1952-08-26 Comb Eng Superheater Inc Dual nozzle burner for pulverized fuel
US4252069A (en) * 1979-04-13 1981-02-24 Combustion Engineering, Inc. Low load coal bucket
JPS5735366A (en) * 1980-07-03 1982-02-25 Nec Corp Semiconductor integrated circuit device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE504814C (de) * 1927-04-12 1930-08-08 Adolf Steinbrueckner Kohlenstaubbrenner mit Zusatzluftzufuehrung und mit innerem Verteilkoerper fuer das Brennstoffluftgemisch
DE913092C (de) * 1951-04-06 1954-06-08 Kohlenscheidungs Ges Mit Besch Brenner fuer Kohlenstaub od. dgl. feinverteilten Brennstoff
DD127792A1 (de) * 1976-08-20 1977-10-12 Gerd Boche Kohlenstaubbrenner,insbesondere fuer dampferzeuger

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2689211A1 (fr) * 1992-03-30 1993-10-01 Stein Industrie Busette orientable en matériau réfractaire pour injection d'air et de combustible dans les brûleurs de chaudières de centrales thermiques.
WO1994027086A1 (en) * 1993-05-13 1994-11-24 Combustion Engineering, Inc. INTEGRATED LOW NOx TANGENTIAL FIRING SYSTEM
CN1110645C (zh) * 1993-05-13 2003-06-04 阿尔斯托姆电力公司 低ｎｏ.的联合切向燃烧系统
EP0650013A1 (de) * 1993-10-26 1995-04-26 ROLLS-ROYCE POWER ENGINEERING plc Brenner für feste Brennstoffe
EP0723113A2 (de) * 1995-01-17 1996-07-24 Foster Wheeler Energy Corporation Schwenkbarer Brenner mit Dichtung zur Erzeugung einer aufgeteilten Strömung
EP0723113A3 (de) * 1995-01-17 1996-09-18 Foster Wheeler Energy Corp Schwenkbarer Brenner mit Dichtung zur Erzeugung einer aufgeteilten Strömung
EP2623862A3 (de) * 2009-12-17 2013-10-16 Mitsubishi Heavy Industries, Ltd. Festbrennstoffbefeuerter Brenner und festbrennstoffbefeuerter Kessel
EP2515039A1 (de) * 2009-12-17 2012-10-24 Mitsubishi Heavy Industries, Ltd. Festkraftstoffbrenner und festkraftstoffkocher
EP2515039A4 (de) * 2009-12-17 2013-10-16 Mitsubishi Heavy Ind Ltd Festkraftstoffbrenner und festkraftstoffkocher
US10281142B2 (en) 2009-12-17 2019-05-07 Mitsubishi Heavy Industries, Ltd. Solid-fuel-fired burner and solid-fuel-fired boiler
US9869469B2 (en) 2009-12-22 2018-01-16 Mitsubishi Heavy Industries, Ltd. Combustion burner and boiler including the same
CN101718431B (zh) * 2009-12-28 2011-03-23 上海交通大学 电站燃煤锅炉直流燃烧器喷口结构
EP3279562A4 (de) * 2015-03-31 2018-07-25 Mitsubishi Hitachi Power Systems, Ltd. Brenner und kessel
US10458645B2 (en) 2015-03-31 2019-10-29 Mitsubishi Hitachi Power Systems, Ltd. Combustion burner and boiler provided with same
US10591154B2 (en) 2015-03-31 2020-03-17 Mitsubishi Hitachi Power Systems, Ltd. Combustion burner and boiler
US10677457B2 (en) 2015-09-11 2020-06-09 Mitsubishi Hitachi Power Systems, Ltd. Combustion burner and boiler equipped with the same

Also Published As

Publication number Publication date
AU2711584A (en) 1984-10-25
KR890000326B1 (ko) 1989-03-14
ZA841738B (en) 1984-10-31
KR840008492A (ko) 1984-12-15
AU567340B2 (en) 1987-11-19
JPS59205510A (ja) 1984-11-21
ES8503424A1 (es) 1985-02-16
DE3472154D1 (en) 1988-07-21
MX158316A (es) 1989-01-23
CA1230783A (en) 1987-12-29
JPH0225086B2 (de) 1990-05-31
IN161339B (de) 1987-11-14
ES531781A0 (es) 1985-02-16
EP0129001B1 (de) 1988-06-15

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