EP0225655A1 - Méthode pour allumer un brûleur - Google Patents

Méthode pour allumer un brûleur Download PDF

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Publication number
EP0225655A1
EP0225655A1 EP86201933A EP86201933A EP0225655A1 EP 0225655 A1 EP0225655 A1 EP 0225655A1 EP 86201933 A EP86201933 A EP 86201933A EP 86201933 A EP86201933 A EP 86201933A EP 0225655 A1 EP0225655 A1 EP 0225655A1
Authority
EP
European Patent Office
Prior art keywords
burner
air
ignition
mixture
fuel
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
EP86201933A
Other languages
German (de)
English (en)
Other versions
EP0225655B1 (fr
Inventor
Paul Vloon
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.)
Nefit Buderus BV
Original Assignee
Nefit BV
NEDERLANDSE INDUSTRIELE NEFIT B V Mij
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=19846825&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0225655(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Nefit BV, NEDERLANDSE INDUSTRIELE NEFIT B V Mij filed Critical Nefit BV
Priority to AT86201933T priority Critical patent/ATE72482T1/de
Publication of EP0225655A1 publication Critical patent/EP0225655A1/fr
Application granted granted Critical
Publication of EP0225655B1 publication Critical patent/EP0225655B1/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
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N1/00—Regulating fuel supply
    • F23N1/02—Regulating fuel supply conjointly with air supply
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2225/00—Measuring
    • F23N2225/08—Measuring temperature
    • F23N2225/12—Measuring temperature room temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2227/00—Ignition or checking
    • F23N2227/02—Starting or ignition cycles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2227/00—Ignition or checking
    • F23N2227/28—Ignition circuits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2227/00—Ignition or checking
    • F23N2227/36—Spark ignition, e.g. by means of a high voltage
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2229/00—Flame sensors
    • 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
    • F23N2235/02—Air or combustion gas valves or dampers
    • F23N2235/06—Air or combustion gas valves or dampers at the air intake
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2235/00—Valves, nozzles or pumps
    • F23N2235/12—Fuel valves
    • F23N2235/14—Fuel valves electromagnetically operated
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2235/00—Valves, nozzles or pumps
    • F23N2235/12—Fuel valves
    • F23N2235/16—Fuel valves variable flow or proportional valves

Definitions

  • the present invention relates to a process for the ignition of a burner, in particular for a boiler or a heating appliance, said burner comprising a gas supply, an air supply provided with a fan, and a burner plate provided with openings, while there is provision for an electronic ignition element which is connected to a con­trol device for putting the burner into operation and igniting the air-gas mixture.
  • the process relates both to a burner where the to­tal quantity of combustion air is fed in by means of a fan and mixed with the fuel in a mixing chamber (total premixing) and to a burner where the primary combustion air is induced by the fuel and the secondary combustion air is fed in by means of a fan.
  • the pilot flame is often replaced by an electronic ignition element which, for example, ignites the burner in response to a signal coming from a room thermostat.
  • an ignition element has the advantage that a pilot flame consuming a large quantity of fuel is not necessary.
  • the ideal air/gas ratio (air factor) for the ignition depends on the type of fuel used.
  • a cold ap­pliance has a different characteristic from that of a warm appliance. For when the burner is not ignited the quantity of air fed in appears to be greater than when the burner is ignited. This is due to the fact that the resistance over the appliance is lower when the burner is not ignited than when it is ignited. The density of air is greater at a low temperature, so that on ignition of a cold appliance the air factor is too great for easy ignition of the mixture.
  • the object of the invention is to produce a process for the electronic ignition of a burner, in which the above-mentioned difficulties are avoided.
  • This object is achieved according to the invention in that during the ignition phase of the burner the air/fuel ratio is lowered, and after ignition of the mixture the ratio is raised to the operating value of the burner.
  • the ratio according to the invention is preferably lowered gradually during the ignition phase.
  • the air/fuel ratio is varied by regulating the speed of the fan.
  • the invention is also embodied in a burner for car­rying out the process according to the invention, which burner is characterized in that the control device is connected to regulating elements which are disposed in the air inlet and/or fuel inlet for reducing the air/fuel ratio during the ignition phase of the burner, and a detector for monitoring the combustion of the mix­ture is connected to the control device for increasing the air/fuel ratio to the operating value of the burner after ignition of the mixture.
  • Fig. 1 the process according to the invention is explained with reference to a burner 1 with complete premixing of combustion air.
  • the process according to the invention can, however, also be used with an atmos­pheric burner, where only the secondary combustion air is supplied by means of a fan.
  • the burner 1 comprises a mixing chamber 2, which is connected on one side to an air inlet 3 and a fuel inlet 4 for the infeed of an air-­gas mixture.
  • the burner 1 is disposed inside a combus­tion chamber 5 of a boiler or heating appliance, in which combustion chamber is disposed a heat exchanger 6 for heating of a medium.
  • the mixing chamber 2 is shut off at the side facing away from the air and fuel inlet by a burner plate 7 which is situated in the combustion chamber 5 and is provided with openings through which the air-gas mixture flows into the combustion chamber.
  • an ignition element 8 Disposed some distance away from the burner plate inside the combustion chamber 5 is an ignition element 8 which is connected to a control device 9.
  • a detector for monitoring the combustion of the air-gas mixture there is also a detector for monitoring the combustion of the air-gas mixture, said detector also being connected to the control device 9.
  • the air inlet 3 is provided with a fan 11, which is connected to the control device 9, while the fuel inlet 4 is provided with a regulating valve 12, which is also connected to the control device 9. Finally, one or more room thermostats 13 are connected to the control device.
  • the control element 9 When the thermostats 13 call for heat, the control element 9 will start the fan and open the regulating valve 12, so that in the mixing chamber 2 of the burner 1 an air-gas mixture is formed and flows through the openings in the burner plate 7 into the combustion cham­ber 5.
  • the electronic ignition element 8 will be ac­tuated by the control element 9 for ignition of the air-­gas mixture. If the heating appliance is cold, the air fed in through the inlet 3 will meet with little resis­tance, so that the fan 11 has a greater output. This results in a high air factor, which makes the air-gas mixture difficult to ignite. As a result of the lower temperature of the air, the density of the air is greater, so that relatively more air is displaced by the fan, which further increases the above-mentioned effect of a high air factor.
  • the speed of the fan 11 is reduced and/or the fuel supply to the burner increased during the ignition phase, so that during the ignition the air factor is reduced, and the above-mentioned influences are removed, so that the mix­ture has the correct air-gas ratio which is ideal for the ignition.
  • the ignition of the mixture is monitored by the detector 10, which then gives off a signal to the control element 9, following which the air factor in­ creases to the normal operating value of the burner.
  • the process according to the invention can also be used with an atmospheric burner where the secondary com­bustion air is supplied by means of a fan.
  • the secondary combustion air supplied by the fan makes ignition dif­ficult through the "blowing away" of the air-gas mixture emerging through the burner plate.
  • the combustible mix­ture is converted by the inflowing secondary air into a narrow cloud, the correct position of which is difficult to determine beforehand. This means that there is a risk of the ignition element lying outside this cloud.
  • the high speeds and the eddies occurring also make ignition difficult.
  • the means for reducing the air factor during the ignition phase can vary from those which are shown in the drawing.
  • the air in­let 3 can also have a variable resistance element, by means of which the quantity of infed air during the ig­nition phase can be reduced.
  • the fan could be shut off entirely during the ignition.
  • Fig. 2 is a graph showing the curve of the air fac­tor, where the ignition area for a gas A and for a gas B are indicated. It can be seen from this figure that dif­ferent gases can have different ideal ignition areas and it is possible by means of the process according to the invention to ignite the burner irrespective of the type of gas used.

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)
EP86201933A 1985-11-07 1986-11-05 Méthode pour allumer un brûleur Expired - Lifetime EP0225655B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86201933T ATE72482T1 (de) 1985-11-07 1986-11-05 Verfahren zum zuenden eines brenners.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8503058A NL8503058A (nl) 1985-11-07 1985-11-07 Werkwijze voor het ontsteken van een brander, alsmede een brander voor het uitvoeren van deze werkwijze.
NL8503058 1985-11-07

Publications (2)

Publication Number Publication Date
EP0225655A1 true EP0225655A1 (fr) 1987-06-16
EP0225655B1 EP0225655B1 (fr) 1992-02-05

Family

ID=19846825

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86201933A Expired - Lifetime EP0225655B1 (fr) 1985-11-07 1986-11-05 Méthode pour allumer un brûleur

Country Status (4)

Country Link
EP (1) EP0225655B1 (fr)
AT (1) ATE72482T1 (fr)
DE (1) DE3683834D1 (fr)
NL (1) NL8503058A (fr)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5207569A (en) * 1991-04-29 1993-05-04 Asea Brown Boveri Ltd. Method for adjusting a burner during the start-up phase in a furnace operated by means of flue gas recirculation
DE19737191A1 (de) * 1997-08-27 1998-07-30 Bosch Gmbh Robert Vorrichtung zum Betreiben einer Heizungsanlage
US5968320A (en) * 1997-02-07 1999-10-19 Stelco, Inc. Non-recovery coke oven gas combustion system
AT410387B (de) * 2001-03-28 2003-04-25 Vaillant Gmbh Verfahren zur inbetriebnahme eines heizgerätes
EP2116771A1 (fr) * 2008-05-09 2009-11-11 Truma Gerätetechnik GmbH & Co. KG Démarrage et fonctionnement à coefficient d'air optimisé d'un brûleur
EP2685168A1 (fr) * 2012-07-13 2014-01-15 Honeywell Technologies Sarl Procédé et contrôleur de fonctionnement dýun brûleur à gaz
EP2685167A1 (fr) * 2012-07-13 2014-01-15 Honeywell Technologies Sarl Procédé et contrôleur de fonctionnement dýun brûleur à gaz
JP2016012519A (ja) * 2014-06-30 2016-01-21 アイシン精機株式会社 燃料電池システム
WO2018099776A1 (fr) * 2016-11-29 2018-06-07 Webasto SE Appareil de chauffage de véhicule fonctionnant au carburant et procédé pour faire fonctionner un appareil de chauffage de véhicule fonctionnant au carburant
US20190226676A1 (en) * 2018-01-23 2019-07-25 Rheem Manufacturing Company Ignition Control Systems for Fuel-Fired Devices
EP4123222A1 (fr) * 2021-07-19 2023-01-25 Viessmann Climate Solutions SE Procédé de commande d'un brûleur d'un générateur de chaleur, brûleur, générateur de chaleur et installation de chauffage
EP4148325A1 (fr) * 2021-09-08 2023-03-15 Vaillant GmbH Procédé et dispositif de détection de la présence des flammes dans une chambre de combustion lors d'une modulation d'un appareil chauffant

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11739933B2 (en) 2020-09-30 2023-08-29 Midea Group Co., Ltd. Oven broiler gas burner for cooking appliance with variable electromechanical valve
US11732890B2 (en) 2020-09-30 2023-08-22 Midea Group Co., Ltd. Cooking appliance gas oven burner control during oven warm-up operation

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1560110A (fr) * 1967-04-14 1969-03-14
FR2250960A1 (en) * 1973-11-13 1975-06-06 United Gas Industries Ltd Control system for a fuel burner - has a standby condition with reduced air supply to pilot flame
US3912162A (en) * 1973-12-07 1975-10-14 Robertshaw Controls Co Furnace blower speed control

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1560110A (fr) * 1967-04-14 1969-03-14
FR2250960A1 (en) * 1973-11-13 1975-06-06 United Gas Industries Ltd Control system for a fuel burner - has a standby condition with reduced air supply to pilot flame
US3912162A (en) * 1973-12-07 1975-10-14 Robertshaw Controls Co Furnace blower speed control

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENTS ABSTRACTS OF JAPAN, vol. 9, no. 11 (M-351)[1734], 18th January 1985; & JP-A- 59 158 914 (ISEKI NOKI K.K.) 08-09-1984 *

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5207569A (en) * 1991-04-29 1993-05-04 Asea Brown Boveri Ltd. Method for adjusting a burner during the start-up phase in a furnace operated by means of flue gas recirculation
US5968320A (en) * 1997-02-07 1999-10-19 Stelco, Inc. Non-recovery coke oven gas combustion system
DE19737191A1 (de) * 1997-08-27 1998-07-30 Bosch Gmbh Robert Vorrichtung zum Betreiben einer Heizungsanlage
AT410387B (de) * 2001-03-28 2003-04-25 Vaillant Gmbh Verfahren zur inbetriebnahme eines heizgerätes
EP2116771A1 (fr) * 2008-05-09 2009-11-11 Truma Gerätetechnik GmbH & Co. KG Démarrage et fonctionnement à coefficient d'air optimisé d'un brûleur
EP2685168A1 (fr) * 2012-07-13 2014-01-15 Honeywell Technologies Sarl Procédé et contrôleur de fonctionnement dýun brûleur à gaz
EP2685167A1 (fr) * 2012-07-13 2014-01-15 Honeywell Technologies Sarl Procédé et contrôleur de fonctionnement dýun brûleur à gaz
JP2016012519A (ja) * 2014-06-30 2016-01-21 アイシン精機株式会社 燃料電池システム
WO2018099776A1 (fr) * 2016-11-29 2018-06-07 Webasto SE Appareil de chauffage de véhicule fonctionnant au carburant et procédé pour faire fonctionner un appareil de chauffage de véhicule fonctionnant au carburant
CN110023681A (zh) * 2016-11-29 2019-07-16 韦巴斯托股份公司 燃料运行的车辆加热器和用于运行该燃料运行的车辆加热器的方法
JP2019535579A (ja) * 2016-11-29 2019-12-12 ベバスト エスエーＷｅｂａｓｔｏ ＳＥ 燃料式車両用ヒータ及び燃料式車両用ヒータの動作方法
US11148504B2 (en) 2016-11-29 2021-10-19 Webasto SE Fuel-operated vehicle heating device and method to operating a fuel-operated vehicle heating device
DE102016123041B4 (de) 2016-11-29 2023-08-10 Webasto SE Brennstoffbetriebenes Fahrzeugheizgerät und Verfahren zum Betreiben eines brennstoffbetriebenen Fahrzeugheizgerätes
US20190226676A1 (en) * 2018-01-23 2019-07-25 Rheem Manufacturing Company Ignition Control Systems for Fuel-Fired Devices
US11092335B2 (en) * 2018-01-23 2021-08-17 Rheem Manufacturing Company Ignition control systems for fuel-fired devices
EP4123222A1 (fr) * 2021-07-19 2023-01-25 Viessmann Climate Solutions SE Procédé de commande d'un brûleur d'un générateur de chaleur, brûleur, générateur de chaleur et installation de chauffage
EP4148325A1 (fr) * 2021-09-08 2023-03-15 Vaillant GmbH Procédé et dispositif de détection de la présence des flammes dans une chambre de combustion lors d'une modulation d'un appareil chauffant

Also Published As

Publication number Publication date
NL8503058A (nl) 1987-06-01
DE3683834D1 (de) 1992-03-19
EP0225655B1 (fr) 1992-02-05
ATE72482T1 (de) 1992-02-15

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