EP1944549B1 - Procédé de réglage d'un brûleur à gaz - Google Patents

Procédé de réglage d'un brûleur à gaz Download PDF

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Publication number
EP1944549B1
EP1944549B1 EP07025165.7A EP07025165A EP1944549B1 EP 1944549 B1 EP1944549 B1 EP 1944549B1 EP 07025165 A EP07025165 A EP 07025165A EP 1944549 B1 EP1944549 B1 EP 1944549B1
Authority
EP
European Patent Office
Prior art keywords
gas
sensor
control
combustion air
gas burner
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
EP07025165.7A
Other languages
German (de)
English (en)
Other versions
EP1944549A2 (fr
EP1944549A3 (fr
Inventor
Derk Vegter
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 EP1944549A2 publication Critical patent/EP1944549A2/fr
Publication of EP1944549A3 publication Critical patent/EP1944549A3/fr
Application granted granted Critical
Publication of EP1944549B1 publication Critical patent/EP1944549B1/fr
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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
    • F23N1/022—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
    • F23N5/00—Systems for controlling combustion
    • F23N5/18—Systems for controlling combustion using detectors sensitive to rate of flow of air or fuel
    • F23N5/184—Systems for controlling combustion using detectors sensitive to rate of flow of air or fuel 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
    • F23N2227/12—Burner simulation or checking
    • F23N2227/16—Checking components, e.g. electronic
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2227/00—Ignition or checking
    • F23N2227/18—Applying test signals, e.g. periodic
    • 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
    • F23N2237/00—Controlling
    • F23N2237/24—Controlling height of burner
    • F23N2237/26—Controlling height of burner oxygen-air ratio

Definitions

  • the invention relates to a method for controlling a gas burner according to the preamble of claim 1.
  • a method for controlling a gas burner wherein a gas burner via a gas line, a gas stream and a combustion air line, a combustion air flow is supplied.
  • the gas line is a gas valve and the combustion air line is associated with a fan, wherein a sensor that provides an electrical or electronic measurement signal, on the one hand on the combustion air line and on the other hand engages the gas line.
  • the gas burner is controlled in the sense of a 1: 1 gas / air control such that the gas flow supplied to the gas burner is about the same size as the combustion gas supplied to the gas burner, in which case the sensor is not flowed through, a flow through the Sensor is thus about zero.
  • the structure of the sensor which is used to control the gas burner, is from the DE 100 56 064 A1
  • the sensor has a heating device positioned between two temperature-sensitive measuring devices. With active control, the heating device of the sensor is turned on, so that when the sensor is flowed through, depending on the flow direction of a measuring device is heated by the heater more than the other measuring device.
  • After DE 100 56 064 A1 It is also proposed to turn off the heater of the sensor to perform a sensor safety check with the gas valve closed and the fan off so as to eliminate the effect of natural flow on the sensor safety check.
  • the invention is based on the problem to provide a novel method for controlling a gas burner with increased control accuracy.
  • a method for controlling a gas burner with the features of claim 1.
  • a heating device associated with the sensor is switched off at defined time intervals for a defined period of time, whereby a measured value of the sensor is used to perform a calibration of the control in terms of a setpoint adjustment.
  • a method for controlling a gas burner is proposed, with which a setpoint adjustment of the control is performed for calibration purposes at defined time intervals.
  • a much more accurate control of a gas burner can be realized.
  • a drift in the mode of operation of the sensor adjusting over the operation of the gas burner can thus be compensated in order to ensure a consistently good quality of control.
  • the present invention relates to a method for controlling a gas burner, wherein the gas burner to be controlled, a gas / air mixture is supplied.
  • a gas stream can be fed to the gas burner via a gas line 10, at least one gas valve 11 being integrated into the gas line 10.
  • the gas line 10 opens into a combustion air line 12, via which a combustion air flow is supplied to the gas burner.
  • the combustion air line 12 is associated with a blower 13. The rotational speed of the blower 13 determines the combustion air flow.
  • a throttle point 14 is arranged, wherein the gas line 10 downstream of the throttle point 14 opens into the combustion air line 12.
  • a gas nozzle 15 closes off the gas line 10 in the region of the combustion air line 12. In the flow direction behind the gas nozzle 15 is therefore present in front of a gas / air mixture.
  • a sensor 16 which engages with a measuring point 17 on the gas line 10 with a further measuring point 18 on the combustion air line 12.
  • the sensor 16 is designed as a flowmeter or anemometer and flows depending on the flow conditions or pressure conditions in the gas line 10 and combustion air line 12. The detailed structure of the sensor 16 results from Fig. 2 ,
  • the sensor 16 generates depending on the flow through an electrical or electronic measurement signal 19, which is supplied to a control unit 20.
  • the control unit 20 compares the actual value provided by the sensor with a setpoint value, wherein an actuating signal 21 for an actuator 22 assigned to the gas valve 11 is generated as a function thereof.
  • the gas valve 11 is opened via the actuator 22 such that the gas flow corresponds to the combustion air flow, so that no flow flows through the sensor 16.
  • the sensor 16 has according to Fig. 2 via a heating device 23 which is arranged between two temperature-sensitive measuring devices 24, 25.
  • the two temperature-sensitive measuring devices 24, 25 are preferably designed as PTC elements, wherein the measuring devices 24 and 25 are coupled via resistance elements 27 and 28 to a power supply.
  • the signals provided by the temperature-sensitive measuring devices 24 and 25 are supplied to an amplifier 26, the amplifier 26 finally providing the electrical or electronic measuring signal 19 of the sensor 16.
  • either the measuring device 24 or the measuring device 25 is heated more when the heating device 23 is switched on.
  • a measured value of the sensor 16 determined here is used perform a calibration of the control in terms of a setpoint adjustment.
  • the measured value of the sensor 16 determined here is used as a new desired value and thus new control point for the 1: 1 gas / air control.
  • Fig. 3 illustrates the inventive method. So shows Fig. 3 a diagram in which on the horizontally extending axis of the flow rate ⁇ through the sensor 16 and on the vertical axis, the measuring signal U of the sensor 16 is plotted. The measurement signal U corresponds to the measurement signal 19.
  • a curve 29 shows the measurement signal U of the sensor 16 as a function of the flow rate ⁇ when the heating device of the sensor 16 is switched off; on the other hand, a curve 30 shows the measuring signal U of the sensor 16 as a function of the flow rate ⁇ when the heating device 23 is switched on.
  • the two curves 29 and 30 correspond to the behavior of a new or new sensor 16, wherein the crossing point CP 0 of the two curves 29 and 30, the target value for the 1: 1 gas / air control and thus the control point at a new or new sensor 16 corresponds.
  • the heater 23 of the sensor 16 is turned off at defined time intervals for a defined period of time, wherein a measured value of the sensor determined here is used as a new desired value for the 1: 1 gas / air control becomes.
  • This results in a convergent process which leads to a new desired value and thus control point CP NEW for the 1: 1 gas / air control for an aged sensor 16.
  • the curves 29 and 30 have shifted to the curves 29 'and 30', respectively, with the new setpoint or control point CP NEW for the control again being at the intersection of the curves 29 'and 30'. It is therefore provided an automatic calibration of the control in the sense of a setpoint adjustment for a 1: 1 gas / air control.
  • the setpoint adjustment takes place only when the measured value U of the sensor 16 determined during active control and switched-off heater 23 is within an allowable tolerance band around the output signal U of the sensor 16, which prevails in the control point CP 0 .
  • the setpoint adjustment does not take place, rather an error message is generated and the gas regulator is stopped. Only if the measured value U of the sensor is between the upper limit value and the lower limit value when the control is active and the heating device 23 is switched off is the setpoint adjustment according to the invention then carried out.

Claims (3)

  1. Procédé de régulation d'un brûleur à gaz, dans lequel un courant de gaz est acheminé à un brûleur à gaz par le biais d'une conduite de gaz (10) à laquelle est associée une soupape de gaz (11), et un courant d'air de combustion est acheminé au brûleur à gaz par le biais d'une conduite d'air de combustion (12) à laquelle est associée une soufflante (13), un signal de mesure électrique ou électronique fourni par un capteur (16) qui intervient d'une part sur la conduite de gaz (10) et d'autre part sur la conduite d'air de combustion (12) étant utilisé pour la régulation du brûleur à gaz de telle sorte que dans l'optique d'une régulation gaz/air 1:1, le courant de gaz corresponde au courant d'air de combustion et qu'un écoulement à travers le capteur (16) soit ainsi approximativement nul, caractérisé en ce que, lorsque la régulation est active, c'est-à-dire lorsque la soupape de gaz (11) est ouverte et que la soufflante (13) tourne, un dispositif de chauffage (23) associé au capteur (16) soit coupé à intervalles de temps définis pendant une période de temps définie, et en ce qu'une valeur de mesure du capteur (16) ainsi déterminée est utilisée afin d'effectuer un calibrage de la régulation dans l'optique d'une adaptation à une valeur de consigne.
  2. Procédé selon la revendication 1, caractérisé en ce que la valeur de mesure du capteur (16) ainsi déterminée est utilisée en tant que nouvelle valeur de consigne et donc en tant que nouveau point de régulation pour la régulation gaz/air 1:1.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que l'adaptation à une valeur de consigne ne s'effectue que lorsque la valeur de mesure du capteur (16) ainsi déterminée se situe entre une valeur limite supérieure et une valeur limite inférieure.
EP07025165.7A 2007-01-15 2007-12-28 Procédé de réglage d'un brûleur à gaz Active EP1944549B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007002847A DE102007002847B4 (de) 2007-01-15 2007-01-15 Verfahren zum Regeln eines Gasbrenners

Publications (3)

Publication Number Publication Date
EP1944549A2 EP1944549A2 (fr) 2008-07-16
EP1944549A3 EP1944549A3 (fr) 2014-02-26
EP1944549B1 true EP1944549B1 (fr) 2015-07-15

Family

ID=39315223

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07025165.7A Active EP1944549B1 (fr) 2007-01-15 2007-12-28 Procédé de réglage d'un brûleur à gaz

Country Status (2)

Country Link
EP (1) EP1944549B1 (fr)
DE (1) DE102007002847B4 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010044762A1 (de) * 2010-09-08 2012-03-08 Honeywell Technologies S.A.R.L. Vorrichtung zur Kalibrierung einer Gasbrennerregelung
DE102011117736A1 (de) * 2011-11-07 2013-05-08 Honeywell Technologies Sarl Verfahren zum Betreiben eines Gasbrenners
DE102015117406A1 (de) * 2015-10-13 2017-04-13 Ebm-Papst Landshut Gmbh Regeleinrichtung für Gasbrenner
EP3290800B1 (fr) * 2016-09-02 2021-03-24 Robert Bosch GmbH Procédé d'actualisation d'une caractéristique dans un système de chauffage ainsi que unité de commande et système de chauffage

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2825212B2 (ja) * 1991-10-17 1998-11-18 大阪瓦斯株式会社 燃焼装置
DE19824521B4 (de) 1998-06-02 2004-12-23 Honeywell B.V. Regeleinrichtung für Gasbrenner
DE10056064B4 (de) * 2000-11-11 2005-09-08 Honeywell B.V. Verfahren zum Regeln eines Gasbrenners
DE102005034758B3 (de) * 2005-07-21 2006-08-10 Honeywell Technologies S.A.R.L. Verfahren zum Betreiben eines Gasbrenners

Also Published As

Publication number Publication date
EP1944549A2 (fr) 2008-07-16
EP1944549A3 (fr) 2014-02-26
DE102007002847A1 (de) 2008-07-17
DE102007002847B4 (de) 2008-10-16

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