EP2306085B1 - Brenner mit Gebläseluft und Flüssigbrennstoff mit Modulierung des Luft/Brennstoff-Verhältnisses - Google Patents

Brenner mit Gebläseluft und Flüssigbrennstoff mit Modulierung des Luft/Brennstoff-Verhältnisses Download PDF

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Publication number
EP2306085B1
EP2306085B1 EP10183334.1A EP10183334A EP2306085B1 EP 2306085 B1 EP2306085 B1 EP 2306085B1 EP 10183334 A EP10183334 A EP 10183334A EP 2306085 B1 EP2306085 B1 EP 2306085B1
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EP
European Patent Office
Prior art keywords
burner
fuel
pump
pressure
turbine
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.)
Active
Application number
EP10183334.1A
Other languages
English (en)
French (fr)
Other versions
EP2306085A1 (de
Inventor
Philippe Weitz
Olivier Beaugeois
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Spm Innovation
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Spm Innovation
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Classifications

    • 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
    • F23D11/001—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space spraying nozzle combined with forced draft fan in one unit
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N1/00—Regulating fuel supply
    • F23N1/02—Regulating fuel supply conjointly with air supply
    • F23N1/022—Regulating fuel supply conjointly with air supply using electronic means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2225/00—Measuring
    • F23N2225/04—Measuring pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2233/00—Ventilators
    • F23N2233/06—Ventilators at the air intake
    • F23N2233/08—Ventilators at the air intake with variable speed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2235/00—Valves, nozzles or pumps
    • F23N2235/30—Pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/003—Systems for controlling combustion using detectors sensitive to combustion gas properties
    • F23N5/006—Systems for controlling combustion using detectors sensitive to combustion gas properties the detector being sensitive to oxygen

Definitions

  • the present invention relates to a blown-air burner fed with a liquid fuel, in particular fuel oil, more particularly intended for an application in domestic or industrial heating.
  • a burner is called to perform the mixing of an oxidizer, in this case air, and a fuel, to obtain combustion.
  • an oxidizer in this case air
  • a fuel to obtain combustion.
  • the oil burners comprise a turbine that draws outside air or combustion air to inject it into a circuit and on the other hand means to supply the liquid fuel supply, that is to say in fuel.
  • This fuel is fed by a pump which can be set to maintain a certain supply pressure to ensure the spraying of the fuel.
  • the fuel supply is controlled by one or more solenoid valves.
  • the turbine which supplies the oxidant is actuated by a motor with a constant rotation speed of 2800 revolutions / minute and the air flow is regulated by a shutter which creates a pressure drop in the aeraulic circuit.
  • the pump that supplies the pressurized fuel oil is also driven by a motor that rotates at a constant speed of 2800 rpm, which may be the same as the previous one.
  • Mechanical control means such as valves and pressure regulators, make it possible to adjust the flow rate.
  • the document DE 196 52 205 relates to a single-shaft burner driving both a pump and a turbine, from a constant rotational speed of the motor which is predetermined and fixed at the laying, and under variable air pressure.
  • the present invention proposes to remedy the drawbacks mentioned above by proposing a burner in which the fuel supply pump and the turbine comprise a common drive, coupled to means for modulating the supply of air and fuel oil. .
  • the invention is defined by a blast furnace according to the subject of claim 1.
  • the figure 1 represents the burner according to the invention without showing its implantation environment, which may vary.
  • the burner consists of a burner plate (1) which is connected to a fuel supply circuit via a pipe (2) provided with a solenoid valve (4) connected to a pump (5) which provides fuel oil under pressure.
  • the pump (5) is actuated by a variable speed motor (6), which also controls the air supply means.
  • These means consist of a turbine (7) which is disposed opposite the pump (5) and which is placed inside a volute (3).
  • the pump (5) and the turbine (7) have a common drive.
  • the mechanical connection which results from a common drive makes it possible to ensure a constant ratio between the oil pressure and the air flow, and without it being necessary later to use mechanical correction means.
  • the pump (5) and the turbine (7) are both mounted on the motor shaft (8) of the speed variation motor (6).
  • the shaft (8) therefore drives both the pump (5) which feeds the fuel burner and the turbine (7) which provides the air flow required for combustion.
  • the rotational speed of a turbine engine of a burner of this type is of the order of 2800 revolutions / minute.
  • a drop in engine speed causes a decrease in the oil pressure delivered by the pump.
  • This pressure variation is neither constant nor proportional to the loss of engine speed, and negatively influences the air / fuel ratio, resulting in poor combustion.
  • the solution implemented by the invention is to vary the fuel pressure, that is to say the fuel flow, regardless of the speed of rotation of the engine, so the turbine, c that is to say the flow rate oxidizer, while using a common mechanical drive, which allows to change the air flow without changing the oil pressure.
  • the pump (5) and the variable speed motor (6) are associated with means for modulating the pressure, designed to maintain the pump speed from a certain threshold of motor rotation speed. This predefined threshold of triggering makes it possible to ensure fuel supply in a stable manner.
  • the servocontrol of the oxidant can be performed according to the information of the oil pressure and the oxygen value obtained via the modulation means which comprise a measuring device and an associated electronics (10).
  • the measuring device of the modulation means consists of at least one pressure sensor (9) placed at the outlet of the pump (5).
  • the oil pressure delivered by the pump (5) can be readjusted if necessary, according to the information measured and supplied by the sensor (9), which will, if necessary, induce a corresponding variation in the speed of rotation of the motor, therefore the air flow, to optimize combustion.
  • the electronic unit (10) associated with the measuring device indicates in real time and at any time the fuel consumption, and thus makes it possible to control the state of the combustion. We can thus anticipate the maintenance of the burner, and take the necessary security measures in case of bad combustion.
  • the figure 2 shows in the form of a diagram the schematic diagram of the burner according to the present invention, including the exchange of information between the various components of the burner to achieve the object of the invention.
  • the modularity of the air / fuel parameters independently of one another makes it possible to optimize boiler efficiency and combustion hygiene.
  • the air / oil control and the use of oil pressure sensors make it possible to modify either the oil pressure, the speed of the turbine or both, in order to compensate for the variations of the air flow, for example in case of change of the climatic conditions, or variations of the oil flow, for example in the case of fouled nozzle.
  • the modulation makes it possible to carry out longer operating cycles (stabilized phase) and thus to avoid many start-up phases (transient phase), which has the advantage of eliminating the losses of output during the phases of meadow. -ventilation, and to avoid electromagnetic disturbances during burner arcing phases.
  • This reduction of the starting phases also makes it possible to reduce the wear of the mechanical parts and thus to increase the service life of the components, to reduce the unburnt and thus to ensure a cleaner combustion and more respectful of the environment.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Regulation And Control Of Combustion (AREA)

Claims (2)

  1. Brenner mit Gebläseluft und Flüssigbrennstoffspeisung, vom Typ eine Brennerplatte (1) umfassend, die mit einem Heizölzufuhrkreislauf über eine Leitung (2) verbunden ist, welche mit einem Elektromagnetventil (4) versehen ist, das mit einer Pumpe (5) verbunden ist, welche für die unter Druck erfolgende Heizölzufuhr sorgt, mittels eines Motors mit Drehzahlregelung (6) und einer Turbine (7), die für den Luftstrom sorgt,
    - wobei die Pumpe (5) und die Turbine (7) über einen gemeinsamen Antrieb verfügen, der über die Welle (8) des Motors mit Drehzahlregelung (6) erfolgt, und
    - die Pumpe (5) und der Motor mit Drehzahlregelung (6) mit Druckmodulierungsmitteln zusammenarbeiten, wobei der besagte Brenner
    dadurch gekennzeichnet ist, dass die besagten Druckmodulierungsmittel aus mindestens einem Drucksensor (9) bestehen, der am Ausgang der Pumpe (5) positioniert ist, und aus einer damit verbundenen Elektronik (10), wobei die besagten Modulierungsmittel die Anpassung des Heizölversorgungsdrucks unabhängig von der Motordrehgeschwindigkeit ermöglichen, um die Drehzahl der besagten Pumpe anhand eines zuvor festgelegten Schwellenwerts der Drehgeschwindigkeit des besagten Motors aufrechtzuerhalten.
  2. Brenner nach Anspruch 1, dadurch gekennzeichnet, dass die Messvorrichtung der Modulierungsmittel mindestens einen Drucksensor (9) mit mindestens einer Sauerstoffsonde (11) kombiniert.
EP10183334.1A 2009-10-02 2010-09-30 Brenner mit Gebläseluft und Flüssigbrennstoff mit Modulierung des Luft/Brennstoff-Verhältnisses Active EP2306085B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0904700A FR2950954B1 (fr) 2009-10-02 2009-10-02 Bruleur a air souffle et combustible liquide avec modulation du ratio comburant/carburant

Publications (2)

Publication Number Publication Date
EP2306085A1 EP2306085A1 (de) 2011-04-06
EP2306085B1 true EP2306085B1 (de) 2018-11-14

Family

ID=42154333

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10183334.1A Active EP2306085B1 (de) 2009-10-02 2010-09-30 Brenner mit Gebläseluft und Flüssigbrennstoff mit Modulierung des Luft/Brennstoff-Verhältnisses

Country Status (3)

Country Link
EP (1) EP2306085B1 (de)
ES (1) ES2709695T3 (de)
FR (1) FR2950954B1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014167646A1 (ja) * 2013-04-09 2014-10-16 日本オイルポンプ株式会社 バーナー

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH265658A (de) * 1947-09-13 1949-12-15 Looser & Cie E Einrichtung zur Bildung einer variablen Flammenleistung von Ölbrennern, insbesondere Industrie- und Zentralheizungsölbrennern, mit automatisch mit der Brennstoffmenge sich ändernder Luftmenge.
US2464697A (en) * 1948-02-13 1949-03-15 Gilbert & Barker Mfg Co Dual oil burner with common air and oil control
US2491201A (en) * 1948-08-12 1949-12-13 Gilbert & Barker Mfg Co Dual firing rate oil burner of the pressure atomizing type
GB8406106D0 (en) * 1984-03-08 1984-04-11 Davair Heating Ltd Oil burner
JPS6134340U (ja) * 1984-07-31 1986-03-03 三國工業株式会社 液体燃料燃焼式流体加熱装置
DE3818265A1 (de) * 1988-05-28 1989-11-30 Wolfgang Weinmann Regler fuer eine heizungsanlage
JP2530913B2 (ja) * 1989-05-24 1996-09-04 東京瓦斯株式会社 バ―ナに於ける燃料ガスと燃焼用空気の供給機構及び供給装置
US5184949A (en) * 1990-09-07 1993-02-09 R. W. Beckett Corporation Oil burner and method
FR2722705B1 (fr) 1994-07-19 1996-09-20 Guillot Ind Sa Dispositif de melange air/gaz
DE19652205C2 (de) * 1996-12-16 2001-08-09 Wlm Feinwerktechnik Gmbh Brennersystem und Verfahren zum Betrieb eines Brenners
JP4198614B2 (ja) 2004-02-18 2008-12-17 本田技研工業株式会社 内燃機関の制御装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
FR2950954B1 (fr) 2012-09-28
FR2950954A1 (fr) 2011-04-08
ES2709695T3 (es) 2019-04-17
EP2306085A1 (de) 2011-04-06

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