EP0844434B1 - Brûleur - Google Patents

Brûleur Download PDF

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Publication number
EP0844434B1
EP0844434B1 EP19970308215 EP97308215A EP0844434B1 EP 0844434 B1 EP0844434 B1 EP 0844434B1 EP 19970308215 EP19970308215 EP 19970308215 EP 97308215 A EP97308215 A EP 97308215A EP 0844434 B1 EP0844434 B1 EP 0844434B1
Authority
EP
European Patent Office
Prior art keywords
sleeve
combustion
burner
flame
plasma
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.)
Expired - Lifetime
Application number
EP19970308215
Other languages
German (de)
English (en)
Other versions
EP0844434A3 (fr
EP0844434A2 (fr
Inventor
Teruo Arai
Yukimasa Arai
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.)
Arai Teruo
Arai Yukimasa
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0844434A2 publication Critical patent/EP0844434A2/fr
Publication of EP0844434A3 publication Critical patent/EP0844434A3/fr
Application granted granted Critical
Publication of EP0844434B1 publication Critical patent/EP0844434B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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 
    • F23C99/00—Subject-matter not provided for in other groups of this subclass
    • F23C99/001—Applying electric means or magnetism to combustion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
    • F23M5/00—Casings; Linings; Walls
    • F23M5/08—Cooling thereof; Tube walls
    • 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 
    • F23C2900/00—Special features of, or arrangements for combustion apparatus using fluid fuels or solid fuels suspended in air; Combustion processes therefor
    • F23C2900/99005—Combustion techniques using plasma gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2219/00—Treatment devices
    • F23J2219/20—Non-catalytic reduction devices
    • F23J2219/201—Reducing species generators, e.g. plasma, corona

Definitions

  • the present invention relates to a burner which is suitable in use with, for example, a melting furnace, an incinerator, a metal furnace, a chemical reactor and so on.
  • a combustion burner AS a typical burner of this type, there are known a combustion burner, a plasma burner, and the like.
  • air is pressurized and mixed with fuel for combustion.
  • kerosine or heavy oil is used as fuel, and its flame temperature is at 1,600 to 1,700°C at maximum.
  • a temperature exceeding this range is required, in order to obtain the high temperature, it is necessary to preheat the air or decrease an amount of exhaust gas by adding oxygen to the air.
  • the plasma burner that is known as a burner for obtaining a high temperature
  • air, nitrogen, argon, hydrogen, helium or the like is jetted as working gas from a plasma generating device to obtain a high temperature.
  • JP02-044299A features stationary coils wound around a drum that serves as a plasma passage. Plasma is compressed when the coils are supplied with an electric current.
  • EP-A-0423359 is concerned with applying high-frequency magnetic fields to a combustion flame by use of electromagnetic coils arranged around a flame injection cylinder.
  • GB963291 is concerned with effecting complete combustion of gasoline within an engine.
  • the arrangement of three magnets provide a rotary magnetic field.
  • An object of the present invention is to provide a burner that may elevate a temperature of combustion flame with ease without adding oxygen or preheating the air.
  • a burner including a plurality of magnets and a combustion chamber, characterised in that around an outer circumference of the combustion sleeve forming the combustion chamber, the plurality of magnets are arranged having the same polarity of the respective magnets oriented toward a peripheral wall of said combustion chamber.
  • the magnetic action such as a magnetic mirror or a drift effect is added to the flame within the combustion sleeve so that the flame is converged. It is possible to obtain a combustion flame having a higher temperature than that of the normal combustion burner or plasma burner.
  • each magnet may be protected from the high temperature.
  • the burner according to this embodiment is a plasma burner with a mixture sleeve 2 forming a mixture chamber 1.
  • the mixture sleeve 2 is composed of a sleeve portion 2b having a flanged portion 2a at a proximal end, an enlarge diameter stepped portion 2c formed integrally with the distal end of the sleeve portion 2b, a tapered sleeve portion 2d having a smaller diameter from an inlet port toward an outlet port and formed integrally with an outer circumference of the enlarged diameter stepped portion 2c, and a flanged portion 2e provided at an outer circumference of a tip end of the tapered sleeve portion 2d.
  • a double wall structure type air supply portion 5 composed of an outer sleeve 3 and an inner sleeve 4 is provided in the mixture sleeve 2 on the inlet side of the mixture chamber 1.
  • the pressurized air is fed from the outside to the air supply portion 5.
  • the outer sleeve 3 has flanged portions 3a and 3b at both ends and is connected to the mixture sleeve 2 with its flanged portion 3a being overlapped with the flanged portion 2a.
  • a plasma generating means 6 for making the air flow, flowing through the interior of the inner sleeve 4, under the plasma condition, thereby generating a plasma flow.
  • an annular insulating support member 7 is mounted along an inner circumference of the inner sleeve 4, and a plurality of rod-shaped electrodes 8 are penetrated into and supported to the insulating support member 7.
  • These electrodes 8 are used as anodes and the inner sleeve 4 is used as a cathode.
  • a high voltage is applied in between these electrodes to thereby make the air flow, flowing within the inner sleeve 4, under the plasma condition.
  • spiral vanes 9 are arranged in a spiral manner between the outer sleeve 3 and the inner sleeve 4, and the air flow flowing between the outer sleeve 3 and the inner sleeve 4 is made into a swirl flow to surround and converge the plasma flow.
  • the inner sleeve 4 is supported to the outer sleeve 3 by the spiral vane 9.
  • a plurality of fuel injection nozzles 10 for injecting the fuel around the plasma flow within the mixture chamber 1 and mixing the fuel with the swirl flow are provided through and to the enlarged diameter stepped portion 2c of the mixture sleeve 2.
  • a joint flow portion 13 with the fuel passage 12 is kept under a negative pressure by its dynamic pressure, and the fuel is sucked and atomized so that the mixture flow of the fuel and the air from the throat 14 is injected to the outside of the nozzle sleeve 15.
  • the combustion sleeve 16 is connected through the flanged portion 16a to the flanged portion 2e of the mixture sleeve 2 on the outlet side of the mixture chamber 1.
  • a cylindrical combustion chamber 17 is formed in the interior of the combustion sleeve 16.
  • a flanged portion 16b is provided at the other end of the combustion sleeve 16.
  • a plurality of ignition plugs 18 are connected to and through the combustion sleeve 16.
  • each coil 21 is wound around an iron core 20 in one direction as shown in Fig. 4, and each coil 21 is connected in series with each other to thereby supply the excited current from a direct current power source 22.
  • a cooling passage 23 for flowing cooling water is formed in the iron core 20 of each electromagnet 19.
  • a cooling jacket outer wall 24 is provided coaxially around the outer circumference of the combustion sleeve 16. Both ends of the cooling jacket outer wall 24 are connected to the flanged portions 16a and 16b of the combustion sleeve 16.
  • a cooling chamber 25 is formed between the combustion sleeve 16 and the cooling jacket outer wall 24. The cooling water is fed from an opening portion 23a of the cooling passage 23 of the iron core 20 to the cooling chamber 25. The cooling water within the cooling chamber 25 is discharged from a drain port 24a of the cooling jacket outer wall 24.
  • a partitioning sleeve 26 for partitioning from the cooling water is provided at the positions of the ignition plugs 18.
  • the magnetic action such as a magnetic mirror and a drift effect is applied to the flame within the combustion sleeve 16 so that the flame is converged.
  • the combustion flame having a higher temperature than that of the normal combustion burner or plasma burner.
  • Figs. 5 and 6 are illustrations showing the action of the electromagnets 19 for the flame within the combustion sleeve 16.
  • the N-pole of each electromagnet 19 is located around the combustion sleeve 16 as shown in Fig. 5
  • eddy flows of the flame are formed as shown in Fig. 5. Namely, the eddy is generated in the counterclockwise direction in the circumferential portion of the combustion sleeve 16, and the eddy is generated in the clockwise direction in the central portion thereof.
  • the electromagnets 19 are used as the magnets, it is possible to adjust the convergence of the flame plasma by adjusting the exciting current and it is also possible to adjust the temperature of the flame plasma. Also, if the cooling passage 23 is provided in each magnet 19 arranged around the combustion sleeve 16 that is kept at a high temperature and the cooling jacket outer wall 24 is arranged around the combustion sleeve 16 to thereby cool the magnets with the cooling water, it is possible to protect the respective electromagnets 19 from a high temperature. In particular, if the cooling passage 23 is provided within the iron core 20, it is possible to effectively cool the iron core 20.
  • the burner according to the present invention is not limited to the plasma burner having the above-described structure but may be a plasma burner having other structure or a fuel burner having other structure.
  • the plurality of magnets are arranged so that the same polarity of the magnets is present around the combustion chamber around the outer circumference of the combustion sleeve forming the combustion chamber so that the magnetic action such as a magnetic mirror or a drift effect is applied to the flame within the combustion sleeve and it is possible to obtain a high temperature combustion flame in comparison with the normal combustion burner or plasma burner.
  • the electromagnets 19 are arranged around the combustion sleeve 16 but it is possible to arrange permanent magnets around the sleeve with the same polarity instead of the electromagnets 19.
  • the plurality of magnets are arranged around the outer circumference of the combustion sleeve forming the combustion chamber with the same polarity being located around the combustion chamber, so that the magnetic action such as a magnetic mirror or a drift effect is applied to the flame within the combustion sleeve and the flame is converged and it is possible to obtain a high temperature combustion flame in comparison with the normal combustion burner or plasma burner.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Spray-Type Burners (AREA)
  • Air Supply (AREA)
  • Pressure-Spray And Ultrasonic-Wave- Spray Burners (AREA)

Claims (2)

  1. Brûleur comprenant une pluralité d'aimants (19) et une chambre de combustion, caractérisé en ce qu'autour d'une circonférence externe d'une chemise de combustion (16), formant la chambre de combustion, la pluralité des aimants (19) sont arrangés en ayant la même polarité N ou S, des aimants respectifs orientés dans une configuration radiale en direction d'une paroi périphérique (16) de ladite chambre de combustion.
  2. Brûleur selon la revendication 1, dans lequel un passage de refroidissement (23) est prévu dans chaque aimant (19).
EP19970308215 1996-10-28 1997-10-16 Brûleur Expired - Lifetime EP0844434B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP8285503A JP3054596B2 (ja) 1996-10-28 1996-10-28 バーナー
JP28550396 1996-10-28
JP285503/96 1996-10-28

Publications (3)

Publication Number Publication Date
EP0844434A2 EP0844434A2 (fr) 1998-05-27
EP0844434A3 EP0844434A3 (fr) 1999-05-19
EP0844434B1 true EP0844434B1 (fr) 2004-02-18

Family

ID=17692380

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19970308215 Expired - Lifetime EP0844434B1 (fr) 1996-10-28 1997-10-16 Brûleur

Country Status (5)

Country Link
EP (1) EP0844434B1 (fr)
JP (1) JP3054596B2 (fr)
KR (1) KR19980033133A (fr)
DE (1) DE69727644T2 (fr)
TW (1) TW466321B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9494317B2 (en) 2012-09-10 2016-11-15 Clearsign Combustion Corporation Electrodynamic combustion control with current limiting electrical element

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US6768087B2 (en) * 2001-04-02 2004-07-27 Masaichi Kikuchi Small ion-decomposing melting furnace
RU2010110031A (ru) * 2010-03-18 2011-09-27 Дженерал Электрик Компани (US) Устройство для создания электромагнитного излучения в камере сгорания в процессе сгорания (варианты)
US9732958B2 (en) 2010-04-01 2017-08-15 Clearsign Combustion Corporation Electrodynamic control in a burner system
US11073280B2 (en) 2010-04-01 2021-07-27 Clearsign Technologies Corporation Electrodynamic control in a burner system
EP2673725A4 (fr) 2011-02-09 2016-07-27 Clearsign Comb Corp Commande de champ électrique d'au moins deux réponses dans un système de combustion
WO2013130175A1 (fr) 2012-03-01 2013-09-06 Clearsign Combustion Corporation Électrode à inertie et système configuré pour interaction électrodynamique avec une flamme
US9371994B2 (en) 2013-03-08 2016-06-21 Clearsign Combustion Corporation Method for Electrically-driven classification of combustion particles
US9696031B2 (en) 2012-03-27 2017-07-04 Clearsign Combustion Corporation System and method for combustion of multiple fuels
WO2013181563A1 (fr) 2012-05-31 2013-12-05 Clearsign Combustion Corporation Brûleur à faible taux d'émission de nox et procédé de fonctionnement d'un brûleur à faible taux d'émission en nox
EP2861341A4 (fr) * 2012-06-15 2016-02-24 Clearsign Comb Corp Réacteur à flamme vers le bas stabilisé électriquement
US9702550B2 (en) 2012-07-24 2017-07-11 Clearsign Combustion Corporation Electrically stabilized burner
CN104854407A (zh) 2012-12-21 2015-08-19 克利尔赛恩燃烧公司 包括互补电极对的电燃烧控制系统
CN104838208A (zh) 2012-12-26 2015-08-12 克利尔赛恩燃烧公司 带有栅切换电极的燃烧系统
US10364984B2 (en) 2013-01-30 2019-07-30 Clearsign Combustion Corporation Burner system including at least one coanda surface and electrodynamic control system, and related methods
US10458649B2 (en) 2013-02-14 2019-10-29 Clearsign Combustion Corporation Horizontally fired burner with a perforated flame holder
US10119704B2 (en) 2013-02-14 2018-11-06 Clearsign Combustion Corporation Burner system including a non-planar perforated flame holder
US10386062B2 (en) 2013-02-14 2019-08-20 Clearsign Combustion Corporation Method for operating a combustion system including a perforated flame holder
US11460188B2 (en) 2013-02-14 2022-10-04 Clearsign Technologies Corporation Ultra low emissions firetube boiler burner
WO2014127311A1 (fr) 2013-02-14 2014-08-21 Clearsign Combustion Corporation Système de combustion de carburant avec un support de réaction perforé
US9857076B2 (en) 2013-02-14 2018-01-02 Clearsign Combustion Corporation Perforated flame holder and burner including a perforated flame holder
US10571124B2 (en) 2013-02-14 2020-02-25 Clearsign Combustion Corporation Selectable dilution low NOx burner
US9377188B2 (en) 2013-02-21 2016-06-28 Clearsign Combustion Corporation Oscillating combustor
US9696034B2 (en) 2013-03-04 2017-07-04 Clearsign Combustion Corporation Combustion system including one or more flame anchoring electrodes and related methods
WO2014160836A1 (fr) 2013-03-27 2014-10-02 Clearsign Combustion Corporation Écoulement de fluide de combustion à commande électrique
US9739479B2 (en) 2013-03-28 2017-08-22 Clearsign Combustion Corporation Battery-powered high-voltage converter circuit with electrical isolation and mechanism for charging the battery
US10125979B2 (en) 2013-05-10 2018-11-13 Clearsign Combustion Corporation Combustion system and method for electrically assisted start-up
US9574767B2 (en) 2013-07-29 2017-02-21 Clearsign Combustion Corporation Combustion-powered electrodynamic combustion system
WO2015017084A1 (fr) 2013-07-30 2015-02-05 Clearsign Combustion Corporation Chambre de combustion pourvue d'un corps non métallique présentant des électrodes externes
WO2015038245A1 (fr) 2013-09-13 2015-03-19 Clearsign Combustion Corporation Commande transitoire d'une réaction de combustion
WO2015051377A1 (fr) 2013-10-04 2015-04-09 Clearsign Combustion Corporation Dispositif d'ionisation pour un système de combustion
US20150104748A1 (en) 2013-10-14 2015-04-16 Clearsign Combustion Corporation Electrodynamic combustion control (ecc) technology for biomass and coal systems
CA2928451A1 (fr) 2013-11-08 2015-05-14 Clearsign Combustion Corporation Systeme de combustion avec commande de position de flamme
EP3097365A4 (fr) 2014-01-24 2017-10-25 Clearsign Combustion Corporation Chaudière à tubes de fumée à faible taux d'émission de nox
WO2016003883A1 (fr) 2014-06-30 2016-01-07 Clearsign Combustion Corporation Alimentation électrique à faible inertie pour appliquer une tension sur une électrode couplée à une flamme
US9828288B2 (en) 2014-08-13 2017-11-28 Clearsign Combustion Corporation Perforated burner for a rotary kiln
US10458647B2 (en) 2014-08-15 2019-10-29 Clearsign Combustion Corporation Adaptor for providing electrical combustion control to a burner
US9702547B2 (en) 2014-10-15 2017-07-11 Clearsign Combustion Corporation Current gated electrode for applying an electric field to a flame
CN117249675B (zh) * 2023-03-22 2024-05-10 沈阳智尔镁科技有限公司 一种镁砖烧结设备

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GB963291A (en) * 1960-03-31 1964-07-08 Tukichi Asakawa Improvements in a method and apparatus for generating energy by combustion of fuel
US3830621A (en) * 1972-01-31 1974-08-20 Lectro Static Magnetic Corp Process and apparatus for effecting efficient combustion
JPS5647739A (en) * 1979-09-28 1981-04-30 Hitachi Ltd Specimen atomizing device
JP2707281B2 (ja) * 1988-08-03 1998-01-28 白川 司郎 焼却炉装置
JPH0350405A (ja) * 1989-04-17 1991-03-05 Shirakawa Shiro 火炎電離材及びその応用

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9494317B2 (en) 2012-09-10 2016-11-15 Clearsign Combustion Corporation Electrodynamic combustion control with current limiting electrical element

Also Published As

Publication number Publication date
TW466321B (en) 2001-12-01
EP0844434A3 (fr) 1999-05-19
EP0844434A2 (fr) 1998-05-27
DE69727644T2 (de) 2004-10-07
KR19980033133A (ko) 1998-07-25
JP3054596B2 (ja) 2000-06-19
DE69727644D1 (de) 2004-03-25
JPH10132209A (ja) 1998-05-22

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