EP1176364A1 - Dispositif de combustion et procédé de commande d'un dispositif de combustion - Google Patents

Dispositif de combustion et procédé de commande d'un dispositif de combustion Download PDF

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Publication number
EP1176364A1
EP1176364A1 EP01202810A EP01202810A EP1176364A1 EP 1176364 A1 EP1176364 A1 EP 1176364A1 EP 01202810 A EP01202810 A EP 01202810A EP 01202810 A EP01202810 A EP 01202810A EP 1176364 A1 EP1176364 A1 EP 1176364A1
Authority
EP
European Patent Office
Prior art keywords
throttle
gas
flow opening
ionization signal
combustion device
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
EP01202810A
Other languages
German (de)
English (en)
Other versions
EP1176364B1 (fr
Inventor
Klaas Ophoff
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 Buderus BV
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Filing date
Publication date
Application filed by Nefit Buderus BV filed Critical Nefit Buderus BV
Publication of EP1176364A1 publication Critical patent/EP1176364A1/fr
Application granted granted Critical
Publication of EP1176364B1 publication Critical patent/EP1176364B1/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
    • F23N1/027—Regulating fuel supply conjointly with air supply using mechanical means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/02—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium
    • F23N5/12—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using ionisation-sensitive elements, i.e. flame rods
    • F23N5/123—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using ionisation-sensitive elements, i.e. flame rods using electronic means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2225/00—Measuring
    • F23N2225/26—Measuring humidity
    • F23N2225/30—Measuring humidity measuring lambda
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2227/00—Ignition or checking
    • F23N2227/20—Calibrating devices
    • 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
    • F23N2235/16—Fuel valves variable flow or proportional valves
    • 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
    • F23N2235/18—Groups of two or more valves

Definitions

  • the invention relates to a combustion device with a burner for burning a gas-air mixture, a gas supply line, into the one or more gas valves and gas valve regulating means for regulating the Gas supply to the burner and an air supply line are included a control device for controlling the combustion process, and an ionization measuring device coupled to the control device, being in series connection with the gas supply Gas valve or the gas valves or in the air supply line Throttle device with one by the control device adjustable flow opening is arranged. Also affects the Invention a method for controlling a combustion device.
  • composition of the gas varies regionally. It can also Gas composition deviate from a norm or vary over time. This gives rise to the problem that in a combustion device the required gas-air ratio for an optimal, if possible clean combustion varies. That means one Combustion device adapted to the composition of the gas must become.
  • throttle or throttle device is in Understanding the scope of the invention also an injection nozzle.
  • the Throttle affects the gas-air ratio of the burner supplied gas-air mixture.
  • EP 0 962 703 describes a method for regulating a gas burner known, wherein an ionization signal of an ionization sensor for Adaptation of the gas-air mixture to different gas qualities is used.
  • the ionization signal is in the range of Maximum output of the burner, namely in the range from 60% to 100% of the Maximum power used to adjust the gas-air ratio that there is a fixed, predetermined value of the ionization signal results.
  • the gas-air ratio is outside the range of maximum power depending on that in the area of maximum power certain ratio, for example proportional.
  • a disadvantage of this method is that this regulation for Changes over time is sensitive.
  • the ionization signal and thus the selected setting of the gas-air ratio changes changes with time due to aging, due to the spread of the Position of the ionization sensor in the flame, for example by Warping of the sensor, and / or due to contamination of the Ionization sensor, as well as due to fluctuations in the Burner delivered power.
  • Another disadvantage is that this The procedure is not suitable for regulating the burner if it is with low power burns because of the ionization sensor signal delivered the combustion process when the burner with low power burns, does not reflect well. Since the Control device for burning with low power not for Is able to determine the optimal gas-air ratio and a proportional setting must be used instead, higher emissions of harmful components may occur.
  • the object of the invention is to provide a combustion device which can be adapted to the circumstances of use in a cost-effective manner.
  • the combustion device is characterized in that the control device is set up to set the flow opening of the throttle device on the basis of a change in the flow opening of the throttle device caused by the control device and a resultant change in an ionization signal generated by the ionization measuring device ,
  • the universal applicability of the combustion device is advantageous since it can be optimally adjusted to different compositions of the gas.
  • Another advantage is the logistical simplicity and the consequently smaller stocks, since a single version of the combustion device can be used in all countries and regions. It is also advantageous that the combustion device is less susceptible to malfunction, since the burner is always set essentially optimal.
  • control device is for this set up a first value of the ionization signal at a first adjustment of the adjustable flow opening of the Throttle device to measure and a second value of Ionization signal at a second, different from the first distinctive setting of the flow opening of the Throttle device to measure, as well as the flow opening of the throttle due to the relative change in the second measured value of the Ionization signal compared to the first measured value of the Adjust ionization signal.
  • a major advantage is that the setting of the incinerator insensitive against aging, pollution or positional tolerances of the Ionization sensor is.
  • a measurement of ionization in a flame by means of an ionization sensor is sensitive to Soiling of the sensor and is caused by the burner delivered performance and other sources of error, such as aging or Curving the sensor, depending.
  • other sources of error such as aging or Curving the sensor, depending.
  • Throttle device executes and the flow opening of the Throttle device due to the relative change in Sets ionization signal, one eliminates said Sources of error.
  • control device is for this set up the relative change of the second measured Ionization signal compared to the first measured ionization signal with one or more previously determined values.
  • the means that the relative change in the ionization signal in through these previously defined values are divided into areas. Through these areas, groups of possible Defined gas compositions, whereby the control device for each area one or more choices for hiring the flow opening of the throttle device are offered. This offers the advantage of enabling simple control.
  • control device is for this set up the flow opening of the throttle device in essential once when starting up the Adjust combustion device, wherein the control device is preferably set up within the ionization signal to measure a certain time after the flame is ignited, whereby the control device is preferably set up to the Readjust the flow opening of the throttle device when the The value of the ionization signal is not within a certain range matches a previously measured value.
  • the combustion device adapts completely autonomously since the combustion device the first time the desired throttling itself.
  • the throttle device is a continuously variable Can have flow opening
  • the throttle device is in a preferred embodiment from a finite number of and chokes that can be switched off, preferably one or more and turnable chokes different areas of the Flow opening and thus a different throttle value have or at least two throttles on and off one same area of the flow opening and thus the same Have throttle value. It is advantageous that the adjustable Throttle device thereby by switching on and off a number of Throttles with the same or different flow opening is easy to implement.
  • At least two of the throttles are connected in parallel, the throttle is connected to a gas feed means or air feed means by means of a distributor, and there is a switching means which connects the throttle to the throttle by opening and closing a passage of the gas feed means or air feed means. and switches off, wherein the switching means preferably includes a pneumatic piston or a solenoid valve. It is advantageous here that the adjustable throttle device can be manufactured in a simple, inexpensive and reliable manner, since use is made of proven means for guiding a gas flow.
  • the invention further includes a method for controlling a combustion device for burning a gas-air mixture, characterized by measuring a first ionization signal at a first setting of a throttle device with an adjustable flow opening that is incorporated into the gas supply line or into the air supply line, and measuring a second ionization signal in the case of a second setting of the throttle device which differs from the first, and the setting of the flow opening of the throttle device on the basis of the relative change in the second measured ionization signal compared to the first measured ionization signal.
  • the gas-air ratio setting is correct; because it is matched to the local gas composition measured via the ionization signal.
  • a second advantage is the accuracy of the setting, as it does not depend on the aging, contamination or positional tolerances of the ionization sensor.
  • Figure 1 shows a combustion device with a burner 1 and an ionization sensor 2 which measures the ionization in the flame and via a connection indicated by a broken line Ionization signal transmitted to a control device 3.
  • the burner is connected via an air supply line with one of the control device 3 forth adjustable and controllable fan 4 supplied with air.
  • the air is then fed to a mixing device 5, where the air with gas is mixed.
  • the gas to be burned is fed through a gas feed line 6 supplied with a gas shut-off device 7 arranged therein.
  • This Gas shut-off device 7 includes a safety valve 8, by means of whose control device 3 can shut off the gas supply, and a control valve 9, which is released by the control device 3 and in this example, the amount of gas supplied depending on the by the Fan 4 controls the amount of air sucked in.
  • a throttle device 15 with an adjustable flow opening arranged, which in the present example three in parallel switched, non-adjustable chokes 10, 11 and 12 with different flow area and as a result different throttle value includes.
  • the chokes 11 and 12 are by means of corresponding ones controlled by the control device 3 Switch valves 13 and 14 on and off.
  • the valves 13 and 14 are in a known manner by the control device 3 open and close in a known manner by spring force.
  • the adjustable throttle device 15 can in the Mixing device 5 the amount of gas admixed to the air and thereby the gas-air ratio of the mixture supplied to burner 1.
  • the Control device 3 When the combustion device is started up, the Control device 3, the throttle device 15 to a first Setting the flow opening at which the valve 13 is opened and Valve 14 is closed. After igniting the gas-air mixture in the Burner 1 guides the control device with the ionization sensor 2 a first measurement of the ionization signal. Then the Control device 3 a second measurement of the ionization signal a second setting of the flow opening of the throttle device 15, wherein both valve 13 and valve 4 are open by. Thereafter, the control device 3 determines the relative change in Ionization signal between the first and the second measurement. This relative change is made by the control device 3 with two Thresholds compared.
  • the setting of the throttle device 15 is measured by the control device 3 the combustion device after each subsequent ignition of the burner 1 the ionization using the ionization sensor 2 and compares it Ionization signal with the ionization signal Inormal, which, as before mentioned, immediately after adjusting the throttle device 15 was measured. If the ionization signal is not correct within one determined tolerance with this previously measured value of the Ionization signal coincides, the control device performs the Setting of the throttle device described above again out. However, the ionization signal is already correct within this Tolerance with the previously measured signal Inormal, so changes the control device does not adjust the throttle device.
  • FIG. 2 shows another embodiment of the throttle device 15 with an adjustable flow opening.
  • separate throttles 10, 11, 12 are connected to a cylinder 20, in which a movable piston 21 is received.
  • a movable piston 21 By Pushing in or pushing out the piston 21 can one or several chokes 10, 11, 12 are closed or opened.
  • the Piston 21 can be in a known manner, for example pneumatically the control device 3 can be pushed in or out.
  • the throttle device not in the gas supply line, but in an air supply duct is arranged, which for adjusting the gas-air ratio of the gas mixture fed to the burner is not the gas supply, but the air supply is adjusted.
  • the flow opening of the throttle device be that the desired setting depending on the region in a Table saved and the control device during assembly the Region is communicated, or by the control device desired setting or the gas composition offered via a possibly wireless network connection, for example a Internet connection or a wireless telephone connection becomes.

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)
EP01202810A 2000-07-25 2001-07-23 Dispositif de combustion et procédé de commande d'un dispositif de combustion Expired - Lifetime EP1176364B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1015797 2000-07-25
NL1015797A NL1015797C2 (nl) 2000-07-25 2000-07-25 Verbrandingsinrichting en werkwijze voor het besturen van een verbrandingsinrichting.

Publications (2)

Publication Number Publication Date
EP1176364A1 true EP1176364A1 (fr) 2002-01-30
EP1176364B1 EP1176364B1 (fr) 2006-09-13

Family

ID=19771798

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01202810A Expired - Lifetime EP1176364B1 (fr) 2000-07-25 2001-07-23 Dispositif de combustion et procédé de commande d'un dispositif de combustion

Country Status (3)

Country Link
EP (1) EP1176364B1 (fr)
DE (1) DE50110987D1 (fr)
NL (1) NL1015797C2 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1519114A1 (fr) 2003-09-26 2005-03-30 Betronic Design B.V. Système de surveillance de flamme
WO2013037669A1 (fr) * 2011-09-16 2013-03-21 BSH Bosch und Siemens Hausgeräte GmbH Ensemble de soupapes à gaz
EP2014985A3 (fr) * 2007-07-13 2014-02-26 Vaillant GmbH Procédé de réglage du rapport air/carburant d'un brûleur fonctionnant au gaz
EP3228936A1 (fr) * 2016-04-07 2017-10-11 Honeywell Technologies Sarl Procédé de fonctionnement d'un appareil à brûleur à gaz

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012023606B4 (de) * 2012-12-04 2019-02-21 Robert Bosch Gmbh Verfahren zur Verbrennungsregelung bei einem Gas-oder Ölbrenner

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3280774A (en) * 1965-02-12 1966-10-25 Robert M English Combustion apparatus and controlled draft inducer
EP0050840A1 (fr) * 1980-10-23 1982-05-05 Karl Dungs GmbH & Co. Procédé pour l'ajustage de régulateurs compound pour brûleurs dans une installation de production de chaleur
DE3937290A1 (de) * 1988-11-10 1990-05-17 Vaillant Joh Gmbh & Co Verfahren und einrichtung zur herstellung eines einer verbrennung zuzufuehrenden brennstoff-verbrennungsluft-gemisches
DE4225789A1 (de) * 1991-08-06 1993-02-11 Vaillant Joh Gmbh & Co Verfahren zum einstellen
EP0915295A2 (fr) * 1997-11-04 1999-05-12 Miele & Cie. GmbH & Co. Appareil chauffé au gaz avec un dispositif pour commander le chauffage

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997018417A1 (fr) 1995-11-13 1997-05-22 Gas Research Institute, Inc. Appareil et procede de commande d'ionisation de flamme
ATE211809T1 (de) 1997-10-17 2002-01-15 Riello Spa Kombiniertes regelsystem für gas und luft zur verbrennungsregelung eines gasheizkessels
DE19824523C2 (de) 1998-06-02 2000-06-08 Honeywell Bv Regelungsverfahren für Gasbrenner

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3280774A (en) * 1965-02-12 1966-10-25 Robert M English Combustion apparatus and controlled draft inducer
EP0050840A1 (fr) * 1980-10-23 1982-05-05 Karl Dungs GmbH & Co. Procédé pour l'ajustage de régulateurs compound pour brûleurs dans une installation de production de chaleur
DE3937290A1 (de) * 1988-11-10 1990-05-17 Vaillant Joh Gmbh & Co Verfahren und einrichtung zur herstellung eines einer verbrennung zuzufuehrenden brennstoff-verbrennungsluft-gemisches
DE4225789A1 (de) * 1991-08-06 1993-02-11 Vaillant Joh Gmbh & Co Verfahren zum einstellen
EP0915295A2 (fr) * 1997-11-04 1999-05-12 Miele & Cie. GmbH & Co. Appareil chauffé au gaz avec un dispositif pour commander le chauffage

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1519114A1 (fr) 2003-09-26 2005-03-30 Betronic Design B.V. Système de surveillance de flamme
NL1024388C2 (nl) 2003-09-26 2005-03-31 Betronic Design B V Vlambewakingssysteem.
EP2014985A3 (fr) * 2007-07-13 2014-02-26 Vaillant GmbH Procédé de réglage du rapport air/carburant d'un brûleur fonctionnant au gaz
WO2013037669A1 (fr) * 2011-09-16 2013-03-21 BSH Bosch und Siemens Hausgeräte GmbH Ensemble de soupapes à gaz
CN103797303A (zh) * 2011-09-16 2014-05-14 Bsh博世和西门子家用电器有限公司 燃气阀单元
AU2012307584B2 (en) * 2011-09-16 2015-07-23 Bsh Hausgerate Gmbh Gas valve unit
EA026975B1 (ru) * 2011-09-16 2017-06-30 Бсх Хаусгерете Гмбх Газовое клапанное устройство
EP3228936A1 (fr) * 2016-04-07 2017-10-11 Honeywell Technologies Sarl Procédé de fonctionnement d'un appareil à brûleur à gaz
US10520186B2 (en) 2016-04-07 2019-12-31 Honeywell Technologies Sarl Method for operating a gas burner appliance

Also Published As

Publication number Publication date
EP1176364B1 (fr) 2006-09-13
NL1015797C2 (nl) 2002-01-28
DE50110987D1 (de) 2006-10-26

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