EP2354657A2 - Procédé destiné au fonctionnement d'un brûleur à gaz - Google Patents

Procédé destiné au fonctionnement d'un brûleur à gaz Download PDF

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Publication number
EP2354657A2
EP2354657A2 EP20110000080 EP11000080A EP2354657A2 EP 2354657 A2 EP2354657 A2 EP 2354657A2 EP 20110000080 EP20110000080 EP 20110000080 EP 11000080 A EP11000080 A EP 11000080A EP 2354657 A2 EP2354657 A2 EP 2354657A2
Authority
EP
European Patent Office
Prior art keywords
gas
gas burner
ionization
air mixture
combustion air
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
EP20110000080
Other languages
German (de)
English (en)
Other versions
EP2354657B1 (fr
EP2354657A3 (fr
Inventor
Wim Munsterhuis
Gerwin Languis
Frank Van Prooijen
Geert S. Meyerink
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.)
Garrett Motion SARL
Original Assignee
Honeywell Technologies SARL
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 Honeywell Technologies SARL filed Critical Honeywell Technologies SARL
Publication of EP2354657A2 publication Critical patent/EP2354657A2/fr
Publication of EP2354657A3 publication Critical patent/EP2354657A3/fr
Application granted granted Critical
Publication of EP2354657B1 publication Critical patent/EP2354657B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • 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
    • 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
    • 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

Definitions

  • the invention relates to a method for operating a gas burner according to the preamble of claim 1 or 3.
  • a gas burner is supplied with a gas-combustion air mixture to burn the gas of the gas-combustion air mixture in the gas burner.
  • a flame is formed in the gas burner, it being already known from the prior art to check the presence of a flame in the gas burner by means of an ionization current provided by an ionization sensor. This can be ensured that when no flame is formed despite supplying a gas-combustion air mixture to the gas burner in the gas burner, that further supply of the gas-combustion air mixture can be suppressed to the gas burner.
  • the invention is based on the problem to provide a novel method for operating a gas burner.
  • the composition of the gas-combustion air mixture in terms of calibration in defined operating points of the gas burner is discontinuously adjusted based on the ionization provided with the aid of the ionization, so that depending on the ionization adjusted the opening position of an integrated gas line in a gas valve and then with this Adjusting the amount of gas-combustion gas mixture to be supplied to the gas burner independently of the ionisation current via the rotational speed of a fan or fan, whereby it is determined from the ionisation current provided by the ionisation sensor whether and / or to what extent the gas combustion gas supplied to the gas burner Mixture and a combustion chamber of the gas burner contains impurities, and then, if it is found that these impurities or the extent thereof are smaller than a first limit, based on the with the aid of the Ionisati
  • the composition of the gas combustion air mixture is set
  • the composition and / or the amount of the gas-combustion air mixture in the sense of a control during operation of the gas burner is continuously or continuously or quasi-continuously set on the basis of the provided by means of the ionization Ionisationsstroms such that a dependent of the ionization current value with is compared to a corresponding setpoint value and, depending on a deviation determined here between the desired value and the actual value, regulates the open position of a gas valve integrated in a gas line and / or the rotational speed of a fan or blower, it being determined from the ionization current provided by the ionization sensor whether and / or or to what extent contains the gas burner supplied gas-combustion air mixture and a combustion chamber of the gas burner impurities, and then, if it is determined that these impurities or the scope thereof is smaller than a first limit si nd, on the basis of the provided by means of the ionization Ionisationsstrom
  • the ionization sensor that is to say the ionization current, based on the ionization current, to determine whether and / or to what extent or in what quantity the gas combustion air supplied to the gas burner.
  • Mixture and the combustion chamber of the gas burner contain combustible impurities, which affect the quality of the measurement signal provided by the ionization sensor.
  • the measured value of the ionization sensor is used not only for a new functionality when operating a gas burner, but also the quality in the adjustment of the composition and / or the amount of the gas burner to be supplied gas combustion air mixture can be increased.
  • Fig. 1 shows a highly schematic of a gas burner 10, wherein a combustion chamber 11 of the gas burner 10, a gas-combustion air mixture is supplied to burn the gas of the gas-combustion air mixture in the combustion chamber 11 of the gas burner 10.
  • a gas-combustion air mixture is supplied to burn the gas of the gas-combustion air mixture in the combustion chamber 11 of the gas burner 10.
  • a flame 12 in accordance with Fig. 1 an ionization sensor 13 protrudes.
  • the gas combustion air mixture to be supplied to the combustion chamber 11 of the gas burner 10 is supplied to the combustion chamber 11 of the gas burner 10 by means of a fan 14, which draws combustion air from a combustion air line 15.
  • the sucked combustion air is mixed with also sucked gas, which is conveyed via a gas line 16 in the direction of the combustion air line 15, wherein in the gas line 16, a gas valve 17 is integrated.
  • the composition of the gas-combustion air mixture can be adjusted.
  • the amount of the gas burner to be supplied gas-combustion air mixture can be adjusted.
  • gas valve 17 16 In addition to the gas valve 17 16 further gas valves 18 and 19 are integrated in the illustrated embodiment in the gas line, which serve a safety function.
  • the controller 20 transmits an actuator 21 of the gas valve 17, a control signal.
  • the controller 20 transmits to an actuator 22 of the fan 14, a corresponding control signal.
  • the control device 20 determines whether and / or to what extent or in what quantity the gas-combustion-air mixture fed to the gas burner and the combustion chamber 11 of the gas burner 10 contaminants, namely flammable Impurities, comprises or contains.
  • the controller 20 determines the composition and / or amount of the impurity the gas burner supplied gas-combustion air mixture adjusted by the controller 20 generates a control signal for the actuator 21 of the gas valve 17 and / or an actuating signal for the actuator 22 of the fan 14 depending on the currently provided ionization. If, on the other hand, it is found that these impurities or the extent or amount of impurities is or is greater than a second limit value, the composition and / or the quantity of the gas combustion air is determined on the basis of the ionization flow provided by the ionization sensor 13.
  • the controller 20 keeps the composition and / or amount of the combustion chamber 11 of the gas burner 10 to be supplied gas combustion air mixture unchanged or constant, namely until it is found that the impurities or the extent of the impurities in the gas burner to be supplied gas combustion air mixture and in the combustion chamber 11 are smaller than the first limit or is.
  • the second limit may be greater than the first limit to form a hysteresis effect. In contrast, however, it is also possible that the first limit value corresponds to the second limit value.
  • the threshold (s) may be fixed or variable over the modulation range of the gas burner 10.
  • the composition and / or the quantity of the gas combustion air mixture to be supplied to the gas burner 10 are adjusted continuously or continuously or quasi-continuously in the sense of regulation during operation of the gas burner 10, in that an actual value dependent on the ionization current is compared with a corresponding setpoint value and the open position of the gas valve 17 integrated in a gas line 16 and / or the rotational speed of a fan 14 is regulated as a function of a deviation determined in this case.
  • This setting in the sense of a regulation is preferably carried out over the entire modulation range between full load and minimum partial load of the gas burner 10.
  • the composition of the gas burner 10 to be supplied gas combustion air mixture is adjusted discontinuously in the sense of calibration in defined operating points of the gas burner based on the ionization measured by the ionization 13, that depending on the ionization of the open position of the in the Gas line 16 integrated gas valve 17 is set and then with this setting, the amount of the gas burner to be supplied gas-combustion air mixture is controlled by the speed of a fan or blower 14 regardless of the ionization. In this way, then a calibrated gas-air composite control is established with the control of fixed composition of the gas-combustion air mixture, the composition is then calibrated according to the invention.
  • This setting in the sense of a calibration is carried out exclusively in a modulation range in the vicinity of the full load of the gas burner 10, in particular in a modulation range between 70% and 100% of the full load of the gas burner 10, in defined operating points.
  • the invention is therefore based on the finding that in the gas-combustion air mixture and in the combustion chamber 11 of the gas burner 10 combustible impurities may be included, which adversely affect the quality of a Ionisationsstroms provided by the ionization 13 to the controller 20 ionization.
  • Fig. 2 two curves 23 and 24 are shown, for each of the time t, the ionization current I is plotted.
  • the curve 23 corresponds to an ionization current I, which then forms when 11 impurities are contained in a relatively large extent in the gas combustion air mixture and / or in the combustion chamber.
  • An ionization current I according to the curve 24 is formed when in the gas-combustion air mixture and in the combustion chamber 11 as well as no or relatively small impurities are included.
  • Fig. 2 shows that combustible impurities in the gas combustion air mixture or in the combustion chamber 11 of the gas burner cause significant fluctuations in the measurement signal or ionization current I.
  • Fig. 3 is over the circumference of the combustible impurities V in the gas-combustion air mixture or in the combustion chamber 11 of the gas burner 10, an ionization current I in the form of three curves 25, 26 and 27 plotted, wherein the curve 25 an average ionization depending on the extent of the combustible Impurities V corresponds, and wherein the curves 26 and 27 correspond to this mean plus or minus a standard deviation of the ionization current.
  • a measured value of the ionization current is detected and stored at defined time intervals for determining whether and / or to what extent the gas combustion gas mixture supplied to the gas burner or the combustion chamber 11 thereof combustible impurities a defined number of successive measurements, the standard deviation of the ionization current is determined.
  • This standard deviation of the ionization current is then compared with a corresponding first limit value and a corresponding second limit value such that, if the standard deviation of the ionization current is smaller than the first limit value, the composition and / or quantity of the gas gas to be supplied to the gas burner is determined on the basis of the ionization current. Combustion air mixture is adjusted.
  • the second limit value may be greater than the first limit value or correspond to the first limit value.
  • the composition and / or amount of the gas combustion air mixture to be supplied to the gas burner is set on the basis of the ionization flow.
  • the composition and / or amount of the gas combustion air mixture to be supplied to the gas burner is not adjusted based on the ionization flow, but kept unchanged.
  • the second limit value may be greater than the first limit value or correspond to the first limit value.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Combustion (AREA)
  • Regulation And Control Of Combustion (AREA)
EP11000080.9A 2010-01-15 2011-01-07 Procédé destiné au fonctionnement d'un brûleur à gaz Active EP2354657B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102010004826A DE102010004826A1 (de) 2010-01-15 2010-01-15 Verfahren zum Betreiben eines Gasbrenners

Publications (3)

Publication Number Publication Date
EP2354657A2 true EP2354657A2 (fr) 2011-08-10
EP2354657A3 EP2354657A3 (fr) 2014-11-12
EP2354657B1 EP2354657B1 (fr) 2016-04-27

Family

ID=43585653

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11000080.9A Active EP2354657B1 (fr) 2010-01-15 2011-01-07 Procédé destiné au fonctionnement d'un brûleur à gaz

Country Status (2)

Country Link
EP (1) EP2354657B1 (fr)
DE (1) DE102010004826A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2631541A1 (fr) * 2012-02-27 2013-08-28 Honeywell Technologies Sarl Procédé de fonctionnement d'un brûleur à gaz
EP3869101A1 (fr) 2020-02-19 2021-08-25 Pittway Sarl Dispositif de surveillance de flamme pour un brûleur à gaz et brûleur à gaz

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112879959A (zh) * 2021-02-19 2021-06-01 珠海格力电器股份有限公司 燃气灶的控制方法、控制装置、控制器及燃气灶系统

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1002997A2 (fr) 1998-11-20 2000-05-24 G. Kromschröder Aktiengesellschaft Procédé pour commander le rapport d'air / carburant d'un brûleur à gaz prémélangé complet
DE10258187B4 (de) 2002-09-06 2006-12-28 Wolf Gmbh Verfahren zum Überwachen und Erkennen eines Betriebszustands bei Brennwertheizgeräten
WO2009089886A2 (fr) 2008-01-18 2009-07-23 Honeywell Technologies Sarl Procédé d'utilisation d'un brûleur à gaz

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10003819C1 (de) * 2000-01-28 2001-05-17 Honeywell Bv Verfahren zum Betreiben eines Gasbrenners
DE10030063C2 (de) * 2000-06-19 2003-03-20 Honeywell Bv Regelungsverfahren für Gasbrenner
ATE310925T1 (de) * 2001-09-13 2005-12-15 Siemens Schweiz Ag Regeleinrichtung für einen brenner und einstellverfahren

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1002997A2 (fr) 1998-11-20 2000-05-24 G. Kromschröder Aktiengesellschaft Procédé pour commander le rapport d'air / carburant d'un brûleur à gaz prémélangé complet
DE10258187B4 (de) 2002-09-06 2006-12-28 Wolf Gmbh Verfahren zum Überwachen und Erkennen eines Betriebszustands bei Brennwertheizgeräten
WO2009089886A2 (fr) 2008-01-18 2009-07-23 Honeywell Technologies Sarl Procédé d'utilisation d'un brûleur à gaz

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2631541A1 (fr) * 2012-02-27 2013-08-28 Honeywell Technologies Sarl Procédé de fonctionnement d'un brûleur à gaz
EP3869101A1 (fr) 2020-02-19 2021-08-25 Pittway Sarl Dispositif de surveillance de flamme pour un brûleur à gaz et brûleur à gaz
WO2021165032A1 (fr) 2020-02-19 2021-08-26 Pittway Sarl Dispositif de surveillance de flamme pour appareil de brûleur à gaz et appareil de brûleur à gaz

Also Published As

Publication number Publication date
EP2354657B1 (fr) 2016-04-27
EP2354657A3 (fr) 2014-11-12
DE102010004826A1 (de) 2011-07-21

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