EP0598189A1 - Pulvérisateur pour un brûleur à huile - Google Patents

Pulvérisateur pour un brûleur à huile Download PDF

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Publication number
EP0598189A1
EP0598189A1 EP93112693A EP93112693A EP0598189A1 EP 0598189 A1 EP0598189 A1 EP 0598189A1 EP 93112693 A EP93112693 A EP 93112693A EP 93112693 A EP93112693 A EP 93112693A EP 0598189 A1 EP0598189 A1 EP 0598189A1
Authority
EP
European Patent Office
Prior art keywords
bores
atomizer
outlet
nozzle head
mixing chamber
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
EP93112693A
Other languages
German (de)
English (en)
Other versions
EP0598189B1 (fr
Inventor
Rolf Oppenberg
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.)
Babcock Kraftwerkstechnik GmbH
Original Assignee
Babcock Feuerungssysteme GmbH
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 Feuerungssysteme GmbH filed Critical Babcock Feuerungssysteme GmbH
Publication of EP0598189A1 publication Critical patent/EP0598189A1/fr
Application granted granted Critical
Publication of EP0598189B1 publication Critical patent/EP0598189B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • 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 invention relates to an atomizer for an oil burner with the features of the preamble of claim 1.
  • So-called Y atomizing nozzles are used for the atomization of heating oil (US Pat. No. 24 80 459), in which atomizing steam with a constant pressure of about 10 to 11 bar is overheated and blown out of the atomizing head into the combustion chamber at a certain angle via several nozzle holes .
  • This atomizing steam is connected in a Y-like manner to the heating oil in common outlet bores of somewhat larger diameter before it emerges.
  • the expanding oil atomizes the fuel oil into fine droplets.
  • premix nozzles are known for atomizing heavy fuel oil in particular.
  • the heating oil enters a mixing chamber through a central tube, into which approximately tangential individual holes for guiding steam open.
  • the vapor states are comparable to those in the Y nozzle.
  • the heating oil is swirled with the steam in the mixing chamber and exits into the combustion chamber at a certain angle via individual outlet bores.
  • the bores opening into the mixing chamber are designed as Y-nozzles.
  • the outlet bores of the mixing chamber are arranged on two partial circles, the axes of the outlet bores of both groups forming the same angle to the longitudinal axis of the atomizer.
  • Another known premix nozzle (DE-PS 34 42 148) uses two consecutive mixing chambers.
  • the outlet bores of the rear mixing chamber have different cross sections and are arranged asymmetrically to the longitudinal center plane.
  • the invention has for its object to design the generic atomizer so that the atomization quality for the combustion of heavy heating and special oils is improved.
  • the atomizing steam is injected in a staggered manner, so that double atomization takes place, once in the mixing chamber and once again before it emerges from the Y-shaped outlet bores of the mixing chamber.
  • the staggered blowing can be used, according to claim 4, to guide a part of the atomizing steam as cooling and sealing steam between the detachably connected parts and the very hot gas atmosphere of the combustion chamber exposed parts on the atomizer head.
  • This cooling prevents the parts pressed against each other from loosening and thus prevents oil leakage.
  • the grouping of individual Y-shaped and differently inclined outlet bores according to claims 2 and 3 allows a staged fuel supply to the combustion chamber, which promotes a reduced formation of nitrogen oxide during combustion.
  • the atomizer shown belongs to a burner for the combustion of liquid fuel, in particular for the low-pollutant combustion of heavy heating or special oil. It consists of two supply lines 1, 2, one of which is used to supply the heating oil and the other to supply a vapor or gaseous atomizing medium such as water vapor or air.
  • the two feed lines 1, 2 are surrounded by an outer protective tube 3, which is connected to a nozzle head 5 via a base 4.
  • the nozzle head 5 consists of a head piece 6, an intermediate plate 7 and a cap 8, which are connected to one another in abutting manner by a union nut 9.
  • the union nut 9 engages with an internal thread 10 in an external thread attached to the head piece 6.
  • the union nut 9 is provided with a holding claw 11 which, when the union nut 9 is tightened, rests against a shoulder formed on the cap 8.
  • a chamber 12 is formed, into which the supply line 2 carrying the atomizing medium opens.
  • the supply line 2 carrying the atomizing medium opens.
  • Through the head piece 6 one or more through holes 13 are guided in the longitudinal direction, which connect the chamber 12 with an annular space 14, which is formed on the contact surface between the head piece 6 and the intermediate plate 7.
  • the supply line 1 carrying the heating oil is passed through the chamber 12 into the head piece 6 and opens into a channel 15 penetrating the head piece 6.
  • the intermediate plate 7 and the cap 8 enclose a mixing chamber 16 which is connected to the channel 15 carrying the heating oil via a through opening 17 which is provided centrally in the intermediate plate 7.
  • the mixing chamber 16 is provided with a plurality of outlet bores 18 which are guided obliquely through the cap 8.
  • Each outlet bore 18 contains two sections of different cross-section, the larger cross-section being on the outlet side.
  • axial bores 20 are made, the inlet ends of which are connected to the annular space 14 and which open into an annular chamber 21 which is formed on the contact surface between the intermediate plate 7 and the cap 8.
  • the heating oil flowing into the mixing chamber 16 from the channel 15 is swirled by the atomizing steam entering from the inlet bores 19 and then emerges from the outlet bores 18. Before the outlet from the outlet bores 18, the heating oil treated in this way is atomized again by the atomizing steam supplied from the oblique bores 22.
  • the edge recesses 24 are cut on the outside into the intermediate plate 7 and the cap 8.
  • Part of the atomizing steam is branched off via the transverse bores 23 and guided as cooling or sealing steam into the annular gap, which between the intermediate plate 7 and the cap 8 of the nozzle head 5 and the union nut 9 and is present between the cap 8 and the holding claw 11 of the union nut 9.
  • the axes of the outlet bores 18 form a central angle of a °.
  • the outlet bores can also be arranged in groups on two or more partial circles.
  • the axes of the outlet bores 18 ′ lying on the smaller pitch circle form a central angle of b that is smaller than the central angle a that the axes of the outlet bores 18 lying on the larger pitch circle form.
  • the amount of fuel which is passed through the outlet bores 18, 18 'assigned to each pitch circle can be of different sizes. For example, a larger amount of fuel will be blown in through the outlet bores 18 'arranged on the inner pitch circle and having the smaller central angle. This amount of fuel penetrates further into the combustion chamber, which leads to a reduced formation of nitrogen oxides during combustion.
  • a fuel gradation can be achieved by giving the upwardly directed outlet bores 18 of the horizontally arranged atomizer a larger cross section than the downwardly directed outlet bores 18, so that a larger amount of fuel is blown through the first-mentioned outlet bores.

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)
  • Spray-Type Burners (AREA)
  • Nozzles (AREA)
EP93112693A 1992-11-17 1993-08-07 Pulvérisateur pour un brûleur à huile Expired - Lifetime EP0598189B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4238736 1992-11-17
DE4238736A DE4238736A1 (de) 1992-11-17 1992-11-17 Zerstäuber für einen Ölbrenner

Publications (2)

Publication Number Publication Date
EP0598189A1 true EP0598189A1 (fr) 1994-05-25
EP0598189B1 EP0598189B1 (fr) 1998-01-07

Family

ID=6473072

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93112693A Expired - Lifetime EP0598189B1 (fr) 1992-11-17 1993-08-07 Pulvérisateur pour un brûleur à huile

Country Status (4)

Country Link
US (1) US5368230A (fr)
EP (1) EP0598189B1 (fr)
AT (1) ATE161938T1 (fr)
DE (2) DE4238736A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1944066A2 (fr) 1999-12-22 2008-07-16 Marioff Corporation Oy Tête de vaporisation avec buses fabriquées par forage

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2743012B1 (fr) * 1995-12-27 1998-01-30 Air Liquide Dispositif de pulverisation d'un combustible liquide par un gaz de pulverisation
US5860600A (en) * 1996-10-01 1999-01-19 Todd Combustion Atomizer (low opacity)
US5826798A (en) * 1996-10-01 1998-10-27 Todd Combustion Atomizer with array of discharge holes to provide improved combustion efficiency and process
DE69718879T2 (de) * 1996-11-08 2003-12-04 Shrinkfast Corp Heizpistole mit Hochleistungsstrahlpumpe und schnellwechselbaren Teilen
US6227846B1 (en) 1996-11-08 2001-05-08 Shrinkfast Corporation Heat gun with high performance jet pump and quick change attachments
AU2212400A (en) * 1998-12-23 2000-07-12 Hanford N. Lockwood Low pressure dual fluid atomizer
US6478239B2 (en) 2000-01-25 2002-11-12 John Zink Company, Llc High efficiency fuel oil atomizer
GB2362847A (en) * 2000-06-02 2001-12-05 Hamworthy Combustion Eng Ltd Fuel burner nozzle
KR200210396Y1 (ko) * 2000-07-18 2001-01-15 박석호 산업용 보일러의 연료분사장치
DE102005024608B4 (de) * 2005-05-25 2009-05-07 Astrium Gmbh Einspritzvorrichtung für Brennkammern von Flüssigkeitsraketentriebwerken
DE102005039412A1 (de) * 2005-08-20 2007-02-22 Forschungszentrum Karlsruhe Gmbh Zweistoffzerstäubervorrichtung
US7966820B2 (en) * 2007-08-15 2011-06-28 General Electric Company Method and apparatus for combusting fuel within a gas turbine engine
US8177544B2 (en) 2010-04-09 2012-05-15 Honeywell International Inc. Selective lockout in a fuel-fired appliance
US9388984B2 (en) 2010-04-09 2016-07-12 Honeywell International Inc. Flame detection in a fuel fired appliance
US8523560B2 (en) 2010-04-09 2013-09-03 Honeywell International Inc. Spark detection in a fuel fired appliance
US9494320B2 (en) 2013-01-11 2016-11-15 Honeywell International Inc. Method and system for starting an intermittent flame-powered pilot combustion system
US10208954B2 (en) 2013-01-11 2019-02-19 Ademco Inc. Method and system for controlling an ignition sequence for an intermittent flame-powered pilot combustion system
JP2016007568A (ja) * 2014-06-24 2016-01-18 アネスト岩田株式会社 噴霧装置
DE102016208653A1 (de) * 2016-05-19 2017-11-23 Lechler Gmbh Düse zum Versprühen von Flüssigkeiten
CN107726312B (zh) * 2017-10-19 2024-03-22 山东辰跃节能科技有限公司 一种两级蒸汽雾化油枪
US11305142B2 (en) * 2018-01-12 2022-04-19 Carrier Corporation End cap agent nozzle
US11236930B2 (en) 2018-05-01 2022-02-01 Ademco Inc. Method and system for controlling an intermittent pilot water heater system
US11739982B2 (en) 2019-08-14 2023-08-29 Ademco Inc. Control system for an intermittent pilot water heater
US11656000B2 (en) 2019-08-14 2023-05-23 Ademco Inc. Burner control system

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE24771E (en) * 1960-01-19 Vaporizing and mixing unit
FR2013573A1 (fr) * 1968-07-24 1970-04-03 Ishikawajima Harima Heavy Ind
EP0101109A2 (fr) * 1982-08-09 1984-02-22 Shell Internationale Researchmaatschappij B.V. Atomiseur-mélangeur
DE3442148A1 (de) * 1984-11-17 1986-05-28 L. & C. Steinmüller GmbH, 5270 Gummersbach Zerstaeuberduese mit aufgesetzter verteilerkappe zur reduzierung der stickoxid-emission bei der verbrennung von fluessigen brennstoffen
EP0278115A1 (fr) * 1987-02-13 1988-08-17 BBC Brown Boveri AG Buse de pulvérisation
FR2641365A1 (fr) * 1988-12-30 1990-07-06 Pillard Chauffage Procedes et dispositifs pour pulveriser finement un combustible liquide et bruleurs equipes de ces dispositifs
WO1992004127A1 (fr) * 1990-09-03 1992-03-19 Turbotak Technologies Inc. Modele de pulverisateur ameliore

Family Cites Families (10)

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DE567291C (de) * 1930-05-14 1932-12-30 Eugene Brillie Zerstaeuberbrenner fuer fluessige Brennstoffe mit axialem Zufuehrungskanal fuer den Brennstoff
FR2288940A1 (fr) * 1974-10-24 1976-05-21 Pillard Chauffage Perfectionnements aux bruleurs de combustibles liquides pulverises par la detente d'un fluide auxiliaire et procede d'utilisation de ceux-ci
JPS5565814A (en) * 1978-11-09 1980-05-17 Nippon Steel Corp Liquid fuel combustion burner
US4356970A (en) * 1979-05-18 1982-11-02 Coen Company, Inc. Energy saving fuel oil atomizer
SU985576A1 (ru) * 1981-07-20 1982-12-30 Уральский филиал Всесоюзного научно-исследовательского и проектного института галургии Форсунка
JPS5886316A (ja) * 1981-11-19 1983-05-23 Mitsubishi Heavy Ind Ltd バ−ナ装置
JPH0635882B2 (ja) * 1985-11-11 1994-05-11 バブコツク日立株式会社 スラリ燃焼用アトマイザ
JPS62155426A (ja) * 1985-12-27 1987-07-10 Mitsubishi Heavy Ind Ltd オイルバ−ナチツプ
EP0419198B1 (fr) * 1989-09-20 1996-04-17 Nippon Oil Co. Ltd. Brûleur pour la combustion de combustible liquide
DD294329A5 (de) * 1990-05-10 1991-09-26 Technische Hochschule Zittau,De Brenner zur verbrennung fluessiger brennstoffe

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE24771E (en) * 1960-01-19 Vaporizing and mixing unit
FR2013573A1 (fr) * 1968-07-24 1970-04-03 Ishikawajima Harima Heavy Ind
EP0101109A2 (fr) * 1982-08-09 1984-02-22 Shell Internationale Researchmaatschappij B.V. Atomiseur-mélangeur
DE3442148A1 (de) * 1984-11-17 1986-05-28 L. & C. Steinmüller GmbH, 5270 Gummersbach Zerstaeuberduese mit aufgesetzter verteilerkappe zur reduzierung der stickoxid-emission bei der verbrennung von fluessigen brennstoffen
EP0278115A1 (fr) * 1987-02-13 1988-08-17 BBC Brown Boveri AG Buse de pulvérisation
FR2641365A1 (fr) * 1988-12-30 1990-07-06 Pillard Chauffage Procedes et dispositifs pour pulveriser finement un combustible liquide et bruleurs equipes de ces dispositifs
WO1992004127A1 (fr) * 1990-09-03 1992-03-19 Turbotak Technologies Inc. Modele de pulverisateur ameliore

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1944066A2 (fr) 1999-12-22 2008-07-16 Marioff Corporation Oy Tête de vaporisation avec buses fabriquées par forage
EP1944066A3 (fr) * 1999-12-22 2009-04-15 Marioff Corporation Oy Tête de vaporisation avec buses fabriquées par forage
EP1239926B2 (fr) † 1999-12-22 2014-04-30 Marioff Corporation Oy Tete de vaporisation a buses obtenues par alesage

Also Published As

Publication number Publication date
US5368230A (en) 1994-11-29
ATE161938T1 (de) 1998-01-15
EP0598189B1 (fr) 1998-01-07
DE4238736A1 (de) 1994-05-19
DE59307935D1 (de) 1998-02-12

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