EP1239220A2 - Appareil à combustion de gaz utlisé à des fins de chauffage - Google Patents

Appareil à combustion de gaz utlisé à des fins de chauffage Download PDF

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Publication number
EP1239220A2
EP1239220A2 EP01129917A EP01129917A EP1239220A2 EP 1239220 A2 EP1239220 A2 EP 1239220A2 EP 01129917 A EP01129917 A EP 01129917A EP 01129917 A EP01129917 A EP 01129917A EP 1239220 A2 EP1239220 A2 EP 1239220A2
Authority
EP
European Patent Office
Prior art keywords
time
control system
actuator
gas combustion
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
EP01129917A
Other languages
German (de)
English (en)
Other versions
EP1239220A3 (fr
EP1239220B1 (fr
Inventor
Reinhold Pfotzer
Juergen Grossman
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7676685&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1239220(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1239220A2 publication Critical patent/EP1239220A2/fr
Publication of EP1239220A3 publication Critical patent/EP1239220A3/fr
Application granted granted Critical
Publication of EP1239220B1 publication Critical patent/EP1239220B1/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
    • F23N5/00—Systems for controlling combustion
    • F23N5/24—Preventing development of abnormal or undesired conditions, i.e. safety arrangements
    • F23N5/242—Preventing development of abnormal or undesired conditions, i.e. safety arrangements 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
    • 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
    • F23N2231/00—Fail safe
    • F23N2231/20—Warning devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/003—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 invention relates to a gas combustion device, especially a gas heater.
  • a gas combustion device usually has an actuator in Form of a gas valve with which a mixing ratio of fuel gas and air is adjustable, the so set mixture of fuel gas and air a burner of the device is supplied for combustion.
  • an actuator in Form of a gas valve with which a mixing ratio of fuel gas and air is adjustable, the so set mixture of fuel gas and air a burner of the device is supplied for combustion.
  • a sensor in the exhaust system e.g. a ⁇ probe, arranged so as to sense a ⁇ value, which correlates with the oxygen content of the exhaust gas.
  • This ⁇ sensor is connected to a control system that also is coupled to the actuator.
  • This control system now enables ⁇ -guided control of the actuator, i.e.
  • control system carries out a target / actual comparison of one actual ⁇ value determined by the ⁇ sensor with an am Control system set or stored ⁇ setpoint by and actuates depending on this target-actual comparison the actuator to get the desired ⁇ setpoint regulate.
  • the predetermined ⁇ setpoint corresponds to this an optimal working point of each Gas combustion device in which, for example, a minimal Pollutant emissions and a long lifespan for that Gas combustion device can be reached.
  • the gas combustion device according to the invention with the features of claim 1 has the advantage that the Knowledge of the point in time at which the manipulated variable of their limit values, timely maintenance or Inspection of the gas combustion device can be carried out may, before the device can be operated outside the optimal working point and before there is a failure of the Device is coming.
  • the operational safety of the invention Gas combustion device can be increased overall.
  • the control system generate a warning signal when the calculated Failure time within a predetermined Minimum period is. This will ensure that a maintenance or inspection of the device before it Failure is carried out, additionally increased since that Warning signal to the operator or user of the device warns in time.
  • a warning signal can for example by a corresponding light signal a display of the device.
  • control system can also do so generate a warning signal when the downtime has already occurred has been reached or exceeded. This measure can the operator or user of the gas combustion device increased urgency to carry out an inspection or Maintenance be signaled.
  • control system from a historical course of the manipulated variable a future course of the manipulated variable over time calculate and use it to calculate the time of failure. For example, in the historical course of time a straight line is interpolated from the manipulated variable Extrapolation of the future course of time Manipulated variable results. From the length of the extrapolated straight line up to an intersection with the respective limit of The time of failure can then be determined using manipulated variables.
  • Gas combustion device 1 has a burner 2, which in a Combustion chamber 3 is arranged.
  • the gas combustion device 1 can For example, be designed as a gas heater and in a heating system in a building.
  • the Gas combustion device 1 also has an actuator 4, which is formed here by a gas mixing valve.
  • the Actuator 4 is on the input side to an air line 5 and a fuel gas line 6 connected via which Actuator 4 is supplied with air or fuel gas.
  • a mixture line 7 is on the output side to the actuator 4 connected, the fuel gas-air mixture generated by the actuator 4 feeds the burner 2.
  • An exhaust pipe 8 is connected to the combustion chamber 3, in which a sensor 9 is arranged.
  • This sensor 9 is designed as a ⁇ probe, for example Oxygen content ⁇ of the exhaust pipe 8 from the Determine combustion chamber 3 exhausted combustion exhaust gas.
  • the gas combustion device 1 also has a control system 10 on that via a signal line 11 with the sensor 9 and connected to the actuator 4 via a control line 12 is.
  • the control system 10 includes, for example Microprocessor 13 and a cooperating with it Memory 14.
  • Control system 10 may also be a first Signal light 15 and a second signal light 16 exhibit.
  • the manipulated variable y of the actuator 4 is plotted on the ordinate and the time t on the abscissa.
  • the upper limit value and the lower limit value of the manipulated variables y which can be set on the actuator 4 are denoted by y max and y min .
  • the gas combustion device 1 works like follows:
  • the control system 10 is designed such that it regulates an optimal operating point for the gas combustion device 1 or for the burner 2 during operation. A certain setpoint for the ⁇ value in the exhaust gas is assigned to this operating point. This ⁇ setpoint is stored in memory 14, for example. Accordingly, the control system 10 carries out a ⁇ -guided control of the actuator 4 by the control system 10 actuating the actuator 4 as a function of a target-actual comparison between the stored ⁇ target value and the actual ⁇ value currently determined by the probe 9. The actuability of the actuator 4 is limited by the limit values y min and y max of the manipulated variables y adjustable on the actuator 4.
  • the actuator 4 and the control system 10 are designed and connected to one another such that the control system 10 always knows the manipulated variable y currently set on the actuator 4. In addition, the control system 10 knows the limit values y min and y max .
  • the control can be carried out permanently or cyclically.
  • the control system 10 is designed such that it records a historical time course V h of the manipulated variables y set on the actuator 4.
  • the various control interventions of the control system 10 result, for example, in the serpentine line shown in FIG. 2 for the historical profile V h .
  • the control system 10 can now calculate a future time profile V z for the manipulated variables y to be set on the actuator 4 for a current time t 0 from the historical time profile V h .
  • a straight line is laid through the historical profile V h for this purpose (interpolated).
  • This future time profile V z is now intersected with that limit value y max or y min to which the historical time profile V h is moving.
  • a future time t 2 can now be determined.
  • a warning time t 1 can then be determined, which results from a predetermined minimum time period t min , which is identified in FIG. 2 by a curly bracket.
  • This minimum period of time t min is stored in the control system 10 and can result from maintenance intervals and can be, for example, a period of two to three months.
  • the control system 10 now checks whether a time period t v remaining from the current time t 0 to the calculated failure time t 2 is greater than the predetermined minimum time period t min .
  • the remaining time period t v is also identified in FIG. 2 by a curly bracket. In other words: The control system 10 checks whether, starting from the current time t 0 and after the minimum period t min has elapsed, the failure time t 2 has been reached.
  • the control system 10 As soon as the historical course V h has progressed to such an extent that the current point in time t 0 lies within the minimum time period t min , the control system 10 generates a warning signal, for example by a flashing actuation of the first signal lamp 15.
  • the selection of the minimum time period t min ensures that sufficient time is available to be able to carry out an inspection or maintenance of the heater 1 in good time.
  • the minimum time period t min results in a safety reserve y r for the manipulated variables y which can still be set on the actuator 4 up to the upper limit value y max .
  • the second signal lamp 16 provided here is activated by the control system 10 when the historical time course V h reaches or exceeds the time of failure t 2 , that is to say the interface I. That is, if the current time t 0 coincides with the failure time t 2 . From this point in time t 2 at the latest, proper operation of burner 2 or device 1 at the optimum operating point can no longer be guaranteed.
  • the manipulated variable y can also decrease in the course of time t, the same then correspondingly applying to the lower limit value y min .
EP01129917A 2001-03-08 2001-12-15 Procédé de régulation d'un appareil de combustion à gaz, en particulier pour le chauffage Expired - Lifetime EP1239220B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10111077 2001-03-08
DE10111077A DE10111077C2 (de) 2001-03-08 2001-03-08 Verfahren zum Regeln eines Brenners eines Gasverbrennungsgeräts

Publications (3)

Publication Number Publication Date
EP1239220A2 true EP1239220A2 (fr) 2002-09-11
EP1239220A3 EP1239220A3 (fr) 2002-10-30
EP1239220B1 EP1239220B1 (fr) 2007-01-03

Family

ID=7676685

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01129917A Expired - Lifetime EP1239220B1 (fr) 2001-03-08 2001-12-15 Procédé de régulation d'un appareil de combustion à gaz, en particulier pour le chauffage

Country Status (2)

Country Link
EP (1) EP1239220B1 (fr)
DE (2) DE10111077C2 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1467149A1 (fr) * 2003-04-11 2004-10-13 E.ON Ruhrgas AG Méthode pour surveiller la combustion dans un dispositif de combustion
EP2103873A2 (fr) 2008-03-20 2009-09-23 Linde AG Dispositif pour contrôler un mélange de deux fluides
EP2966353A1 (fr) * 2014-07-10 2016-01-13 Riello S.p.A. Ensemble de rétrofit pour une chaudière à gaz combustible et procédé de modification d'une chaudière à gaz combustible

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2910172T3 (es) * 2016-09-02 2022-05-11 Bosch Gmbh Robert Procedimiento para definir un instante de inspección en un sistema calentador, así como una unidad de control y un sistema calentador
CN113237109B (zh) * 2021-05-31 2022-10-04 宁波方太厨具有限公司 一种烟灶联动控制装置、灶具及吸油烟机

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
EP0209771A1 (fr) * 1985-07-24 1987-01-28 Bieler + Lang GmbH Procédé et dispositif de régulation fine du débit de carburant pour des dispositifs de combustion à brûleurs par la mesure de l'oxygène résiduel et de la concentration du monoxyde dans les gaz d'échappement
US5329273A (en) * 1992-06-03 1994-07-12 Honeywell, Inc. System controller and remote fault annunciator with cooperative storage, sharing, and presentation of fault data
DE19627857A1 (de) * 1996-07-11 1998-01-15 Stiebel Eltron Gmbh & Co Kg Verfahren zum Betrieb eines Gasgebläsebrenners

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19618573C1 (de) * 1996-05-09 1997-06-26 Stiebel Eltron Gmbh & Co Kg Verfahren und Einrichtung zum Betrieb eines Gasbrenners
ATE189301T1 (de) * 1995-10-25 2000-02-15 Stiebel Eltron Gmbh & Co Kg Verfahren und schaltung zur regelung eines gasbrenners

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
EP0209771A1 (fr) * 1985-07-24 1987-01-28 Bieler + Lang GmbH Procédé et dispositif de régulation fine du débit de carburant pour des dispositifs de combustion à brûleurs par la mesure de l'oxygène résiduel et de la concentration du monoxyde dans les gaz d'échappement
US5329273A (en) * 1992-06-03 1994-07-12 Honeywell, Inc. System controller and remote fault annunciator with cooperative storage, sharing, and presentation of fault data
DE19627857A1 (de) * 1996-07-11 1998-01-15 Stiebel Eltron Gmbh & Co Kg Verfahren zum Betrieb eines Gasgebläsebrenners

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1467149A1 (fr) * 2003-04-11 2004-10-13 E.ON Ruhrgas AG Méthode pour surveiller la combustion dans un dispositif de combustion
EP2103873A2 (fr) 2008-03-20 2009-09-23 Linde AG Dispositif pour contrôler un mélange de deux fluides
DE102008015311A1 (de) 2008-03-20 2009-09-24 Linde Ag Vorrichtung zur Gemischüberwachung für Gasgemische aus zwei Gasen
EP2966353A1 (fr) * 2014-07-10 2016-01-13 Riello S.p.A. Ensemble de rétrofit pour une chaudière à gaz combustible et procédé de modification d'une chaudière à gaz combustible
EP3524884A1 (fr) * 2014-07-10 2019-08-14 Riello S.p.A. Ensemble de rétrofit pour chaudière à gaz combustible et procédé de modification d'une chaudière à gaz combustible

Also Published As

Publication number Publication date
EP1239220A3 (fr) 2002-10-30
DE10111077C2 (de) 2003-11-06
DE10111077A1 (de) 2002-09-26
EP1239220B1 (fr) 2007-01-03
DE50111790D1 (de) 2007-02-15

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