EP0117472A2 - Pulvérisateur pour un brûleur à combustible liquide - Google Patents

Pulvérisateur pour un brûleur à combustible liquide Download PDF

Info

Publication number
EP0117472A2
EP0117472A2 EP84101430A EP84101430A EP0117472A2 EP 0117472 A2 EP0117472 A2 EP 0117472A2 EP 84101430 A EP84101430 A EP 84101430A EP 84101430 A EP84101430 A EP 84101430A EP 0117472 A2 EP0117472 A2 EP 0117472A2
Authority
EP
European Patent Office
Prior art keywords
fuel
central duct
mixer
atomizer
atomizing fluid
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
EP84101430A
Other languages
German (de)
English (en)
Other versions
EP0117472A3 (en
EP0117472B1 (fr
Inventor
Mario Graziadio
Sergio Ligasacchi
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.)
Enel SpA
Original Assignee
Enel SpA
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 Enel SpA filed Critical Enel SpA
Priority to AT84101430T priority Critical patent/ATE34445T1/de
Publication of EP0117472A2 publication Critical patent/EP0117472A2/fr
Publication of EP0117472A3 publication Critical patent/EP0117472A3/en
Application granted granted Critical
Publication of EP0117472B1 publication Critical patent/EP0117472B1/fr
Expired legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D1/00—Burners for combustion of pulverulent fuel
    • F23D1/005—Burners for combustion of pulverulent fuel burning a mixture of pulverulent fuel delivered as a slurry, i.e. comprising a carrying liquid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/04—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
    • B05B7/0416—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid
    • B05B7/0441—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid with one inner conduit of liquid surrounded by an external conduit of gas upstream the mixing chamber
    • B05B7/0475—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid with one inner conduit of liquid surrounded by an external conduit of gas upstream the mixing chamber with means for deflecting the peripheral gas flow towards the central liquid flow
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/08—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point
    • B05B7/0892—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point the outlet orifices for jets constituted by a liquid or a mixture containing a liquid being disposed on a circle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D11/00—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
    • F23D11/10—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space the spraying being induced by a gaseous medium, e.g. water vapour
    • F23D11/101—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space the spraying being induced by a gaseous medium, e.g. water vapour medium and fuel meeting before the burner outlet
    • F23D11/102—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space the spraying being induced by a gaseous medium, e.g. water vapour medium and fuel meeting before the burner outlet in an internal mixing chamber

Definitions

  • the present invention relates to an atomizer for a liquid fuel burner.
  • the invention relates to an atomizer suitable to a burner for high viscosity liquid fuels or to two-phase mixtures such, for instance, coal-fuel oil or coal-water, having high viscosity and, in either case, by the assistance of air or steam as an atomizing fluid.
  • Atomizers for liquid fuels are known that are able to achieve an energetic exchange of energy between the fuel and the atomizing fluid, known as "y-jet” atomizers; atomizers of liquid fuels are known too that are able to achieve a modest exchange of energy between the fuel and the atomizing fluid, known as "internal mixing” atomizers.
  • the drawback of both the types of atomizer is that they are not suitable to atomize high viscosity liquid fuels.
  • the atomizer according to the present invention comprises a first mixer for a fuel and an atomizing fluid which bears a central duct for the fuel and a plurality of peripheral ducts for the atomizing fluid which peripheral ducts get to the central duct obliquely or at right angle with respect to the latter and comprises a second mixer which bears a mixing chamber for the fuel and the atomizing fluid already partly mixed one with the other and a plurality of passages for the delivery of the atomized fuel to a fireboxe
  • the peripheral ducts in the first mixer have their inlet in the front inlet surface and their outlet within the central duct in the mixer itself, the slope of the peripheral ducts with respect to the axis of the central duct being within 35° and 90°;
  • the second mixer urged on the central outlet surface of the first mixer, comprises a chamber facing the outlet of the central duct concentric with the latter, and a plurality of passages for the delivery of the atomized fuel to a firebox, said passages being made in a wall opposite to said outlet, the axis of each passage being oblique with respect to the axis of the central duct by an angle within 20° and 60°.
  • the dimensions of the parts of the atomizer depend upon the characteristics of the fuel and of the atomizing fluid, upon the viscosity of the liquid fuel and type of atomizing fuel and said dimensions may be optimized by experimental methods.
  • the figure 1 shows an atomizer 1 mounted on the end of a device 2 comprising a duct 3 for the delivery of a liquid fuel and a duct 4 for the delivery of an atomizing fluid.
  • the duct 4 communicates with a chamber 5 of the device 2 by passages 6.
  • the atomizer 1 is urged on the device 2 by means of the ring nut 7 screwed on a thread of the device 2.
  • the atomizer 1 comprises a first mixer 8 which bears a central duct 9 in communication and coaxial with the duct 3 and a plurality of peripheral ducts 10 the inlet of which faces the chamber 5 and the outlet of which faces the inside of the central duct 9, the axis of each of the ducts 10 and the axis A-A of the central duct 9 forming an angle p( of about 60°, and comprises a second mixer 11 which bears a chamber 12, the aperture of which faces concentrically the central duct 9, and a wall 13 bearing a plurality of passages 14, the axis of each passage 14 and the axis A-A of the central duct 9 forming an angled of about 20°.
  • the figure 2 shows the front end of the device 2 together with the chamber 5, passages 6, ring nut 7 and duct 30
  • the figure 3 shows the front of the first mixer 8 together with the central duct 9, ring nut 7, and the plurality of peripheral ducts 10.
  • the figure 4 shows the front of the atomizer 1 together with the second mixer 11, ring nut 7 and the plurality of passages 14 in the wall 13.
  • the figure 1 also shows some references to the dimensions of the different parts: so, the diameter D1 of the central duct 9 is about 11 mm, diameter d1 of the peripheral ducts 10 is about 3,5 mm, length L1 of the central duct 9 is about 14 mm, diameter D2 of chamber 12 is about 20 mm, length L2 of chamber 12 is about 30 mm, diameter d2 of passages 14 is about 4 mm and the length thereof is about 6 mm.
  • the illustrated atomizer is suitable to a coal-water fuel pumped through the duct 3 under the pressure of about 9 Kg/sq. cm and to air as atomizing fluid pumped through the duct 4 under a pressure of about 11 Kg/sq.cm.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Nozzles For Spraying Of Liquid Fuel (AREA)
  • Feeding And Controlling Fuel (AREA)
  • Nozzles (AREA)
  • Pressure-Spray And Ultrasonic-Wave- Spray Burners (AREA)
EP84101430A 1983-02-24 1984-02-13 Pulvérisateur pour un brûleur à combustible liquide Expired EP0117472B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84101430T ATE34445T1 (de) 1983-02-24 1984-02-13 Zerstaeuber fuer einen brenner mit fluessigem brennstoff.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT1972983 1983-02-24
IT19729/83A IT1161905B (it) 1983-02-24 1983-02-24 Atomizzatore per bruciatore di combustibili liquidi

Publications (3)

Publication Number Publication Date
EP0117472A2 true EP0117472A2 (fr) 1984-09-05
EP0117472A3 EP0117472A3 (en) 1985-05-22
EP0117472B1 EP0117472B1 (fr) 1988-05-18

Family

ID=11160713

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84101430A Expired EP0117472B1 (fr) 1983-02-24 1984-02-13 Pulvérisateur pour un brûleur à combustible liquide

Country Status (5)

Country Link
EP (1) EP0117472B1 (fr)
JP (1) JPS6036811A (fr)
AT (1) ATE34445T1 (fr)
DE (1) DE3471360D1 (fr)
IT (1) IT1161905B (fr)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0182175A2 (fr) * 1984-11-17 1986-05-28 L. & C. Steinmüller GmbH Pulvérisateur avec calotte de répartition rapportée pour la réduction de l'émission en oxyde nitrique pendant la combustion de combustibles liquides
EP0248539A1 (fr) * 1986-05-07 1987-12-09 Hitachi, Ltd. Atomiseur et chaudière à boue de charbon et d'eau comportant un tel atomiseur
EP0253041A1 (fr) * 1986-07-14 1988-01-20 Ente Nazionale Per L'energia Elettrica - (Enel) Pulvérisateur pour un brûleur à combustible liquide
EP0299757A2 (fr) * 1987-07-14 1989-01-18 The Babcock & Wilcox Company Pulvérisateurs
US6036103A (en) * 1995-11-01 2000-03-14 Benest Engineering Limited Agricultural spraying systems
DE19904395A1 (de) * 1999-02-04 2000-08-17 Steinmueller Gmbh L & C Zerstäuberdüse
WO2013093289A2 (fr) 2011-12-21 2013-06-27 L'air Liquide,Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Dispositif et procédé de pulvérisation de liquide combustible
CN107837595A (zh) * 2017-12-22 2018-03-27 和氟微孔滤芯科技（苏州）有限公司 一种微孔过滤器雾化喷淋装置
CN108580076A (zh) * 2018-04-28 2018-09-28 北京航天发射技术研究所 一种内雾化喷嘴及使用该内雾化喷嘴的内雾化喷头
CN109926215A (zh) * 2017-12-08 2019-06-25 通用电气公司 经由涡轮发动机的壳中的孔输送修复涂层的喷射喷嘴装置
CN114278935A (zh) * 2021-12-30 2022-04-05 乔治洛德方法研究和开发液化空气有限公司 燃烧器、包括其的燃烧器模块及加热装置
US11534780B2 (en) 2017-11-14 2022-12-27 General Electric Company Spray nozzle device for delivering a restorative coating through a hole in a case of a turbine engine
IT202200010448A1 (it) * 2022-05-19 2023-11-19 Dls Lab Srl Dispositivo nebulizzatore
CN109926215B (zh) * 2017-12-08 2024-06-21 通用电气公司 经由涡轮发动机的壳中的孔输送修复涂层的喷射喷嘴装置

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009014288A (ja) * 2007-07-06 2009-01-22 Hokkaido Olympia Kk バーナ装置
JP5678598B2 (ja) * 2010-11-17 2015-03-04 株式会社Ihi バーナ及び油噴霧チップの製造方法
CN103115359B (zh) * 2012-12-15 2015-04-08 中国航天科技集团公司第六研究院第十一研究所 一种雾化高粘流体的气体辅助雾化喷嘴

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2149115A (en) * 1936-11-27 1939-02-28 Socony Vacuum Oil Co Inc Oil burner
GB534638A (en) * 1939-09-08 1941-03-12 David Robertson Bruce Improvements in and relating to liquid fuel burners of the injection type
US2879948A (en) * 1956-04-18 1959-03-31 Alfred F Seibel Fuel and gaseous mixing unit
USRE24771E (en) * 1960-01-19 Vaporizing and mixing unit
FR2000280A1 (fr) * 1968-01-16 1969-09-05 Babcock & Wilcox Co
FR2212497A1 (fr) * 1972-12-31 1974-07-26 Ishikawajima Harima Heavy Ind

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49107726U (fr) * 1972-12-31 1974-09-13
JPS5610169Y2 (fr) * 1978-08-29 1981-03-06

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE24771E (en) * 1960-01-19 Vaporizing and mixing unit
US2149115A (en) * 1936-11-27 1939-02-28 Socony Vacuum Oil Co Inc Oil burner
GB534638A (en) * 1939-09-08 1941-03-12 David Robertson Bruce Improvements in and relating to liquid fuel burners of the injection type
US2879948A (en) * 1956-04-18 1959-03-31 Alfred F Seibel Fuel and gaseous mixing unit
FR2000280A1 (fr) * 1968-01-16 1969-09-05 Babcock & Wilcox Co
FR2212497A1 (fr) * 1972-12-31 1974-07-26 Ishikawajima Harima Heavy Ind

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0182175A2 (fr) * 1984-11-17 1986-05-28 L. & C. Steinmüller GmbH Pulvérisateur avec calotte de répartition rapportée pour la réduction de l'émission en oxyde nitrique pendant la combustion de combustibles liquides
EP0182175B1 (fr) * 1984-11-17 1990-05-30 L. & C. Steinmüller GmbH Pulvérisateur avec calotte de répartition rapportée pour la réduction de l'émission en oxyde nitrique pendant la combustion de combustibles liquides
EP0248539A1 (fr) * 1986-05-07 1987-12-09 Hitachi, Ltd. Atomiseur et chaudière à boue de charbon et d'eau comportant un tel atomiseur
US4784043A (en) * 1986-05-07 1988-11-15 Hitachi, Ltd. Atomizer and coal-water slurry fired boiler utilizing the same
EP0253041A1 (fr) * 1986-07-14 1988-01-20 Ente Nazionale Per L'energia Elettrica - (Enel) Pulvérisateur pour un brûleur à combustible liquide
EP0299757A2 (fr) * 1987-07-14 1989-01-18 The Babcock & Wilcox Company Pulvérisateurs
US4819878A (en) * 1987-07-14 1989-04-11 The Babcock & Wilcox Company Dual fluid atomizer
EP0299757A3 (en) * 1987-07-14 1990-01-17 The Babcock & Wilcox Company Atomisers
US6036103A (en) * 1995-11-01 2000-03-14 Benest Engineering Limited Agricultural spraying systems
DE19904395A1 (de) * 1999-02-04 2000-08-17 Steinmueller Gmbh L & C Zerstäuberdüse
WO2013093289A3 (fr) * 2011-12-21 2013-10-24 L'air Liquide,Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Dispositif et procédé de pulvérisation de liquide combustible
WO2013093289A2 (fr) 2011-12-21 2013-06-27 L'air Liquide,Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Dispositif et procédé de pulvérisation de liquide combustible
FR2984995A1 (fr) * 2011-12-21 2013-06-28 Air Liquide Dispositif et procede de pulverisation de liquide combustible
US11745195B2 (en) 2017-11-14 2023-09-05 General Electric Company Spray nozzle device for delivering a restorative coating through a hole in a case of a turbine engine
US11161128B2 (en) 2017-11-14 2021-11-02 General Electric Company Spray nozzle device for delivering a restorative coating through a hole in a case of a turbine engine
US11534780B2 (en) 2017-11-14 2022-12-27 General Electric Company Spray nozzle device for delivering a restorative coating through a hole in a case of a turbine engine
CN109926215A (zh) * 2017-12-08 2019-06-25 通用电气公司 经由涡轮发动机的壳中的孔输送修复涂层的喷射喷嘴装置
CN109926215B (zh) * 2017-12-08 2024-06-21 通用电气公司 经由涡轮发动机的壳中的孔输送修复涂层的喷射喷嘴装置
CN107837595A (zh) * 2017-12-22 2018-03-27 和氟微孔滤芯科技（苏州）有限公司 一种微孔过滤器雾化喷淋装置
CN108580076A (zh) * 2018-04-28 2018-09-28 北京航天发射技术研究所 一种内雾化喷嘴及使用该内雾化喷嘴的内雾化喷头
EP4206529A1 (fr) * 2021-12-30 2023-07-05 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Brûleur, module de brûleur le comprenant et dispositif de chauffage
CN114278935B (zh) * 2021-12-30 2024-06-07 乔治洛德方法研究和开发液化空气有限公司 燃烧器、包括其的燃烧器模块及加热装置
CN114278935A (zh) * 2021-12-30 2022-04-05 乔治洛德方法研究和开发液化空气有限公司 燃烧器、包括其的燃烧器模块及加热装置
IT202200010448A1 (it) * 2022-05-19 2023-11-19 Dls Lab Srl Dispositivo nebulizzatore

Also Published As

Publication number Publication date
EP0117472A3 (en) 1985-05-22
JPH0459524B2 (fr) 1992-09-22
IT1161905B (it) 1987-03-18
EP0117472B1 (fr) 1988-05-18
ATE34445T1 (de) 1988-06-15
DE3471360D1 (en) 1988-06-23
JPS6036811A (ja) 1985-02-26
IT8319729A0 (it) 1983-02-24

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