EP1239220A2 - Gasverbrennungsgerät, insbesondere Gasheizgerät - Google Patents
Gasverbrennungsgerät, insbesondere Gasheizgerät Download PDFInfo
- 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
Links
Images
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 .
Abstract
Description
- Fig. 1
- eine schaltplanartige Prinzipdarstellung eines erfindungsgemäßen Gasverbrennungsgerätes und
- Fig. 2
- ein Diagramm zur Darstellung des zeitlichen Verlaufs der Stellgrößen eines Stellgliedes des Gasverbrennungsgerätes.
- 1
- Gasverbrennungsgerät
- 2
- Brenner
- 3
- Brennraum
- 4
- Stellglied
- 5
- Luftleitung
- 6
- Brenngasleitung
- 7
- Gemischleitung
- 8
- Abgasleitung
- 9
- Sensor
- 10
- Regelsystem
- 11
- Signalleitung
- 12
- Steuerleitung
- 13
- Mikroprozessor
- 14
- Speicher
- 15
- erste Signalleuchte
- 16
- zweite Signalleuchte
- y
- Stellgröße
- ymax
- oberer Grenzwert
- ymin
- unterer Grenzwert
- yr
- Sicherheitsreserve
- t
- Zeit
- t0
- aktueller Zeitpunkt
- t1
- Warnzeitpunkt
- t2
- Ausfallzeitpunkt
- tmin
- Mindestzeitspanne
- tv
- verbleibende Zeitspanne
- Vh
- historischer zeitlicher Verlauf
- Vz
- zukünftiger zeitlicher Verlauf
Claims (4)
- Gasverbrennungsgerät, insbesondere Gasheizgerät, mit einem Stellglied (4), mit dem ein Mischungsverhältnis von Brenngas und Luft einstellbar ist, mit einem Sensor (9), mit dem ein λ-Wert sensierbar ist, der mit dem Sauerstoffgehalt des Abgases korreliert, und mit einem Regelsystem (10), das mit dem Stellglied (4) und mit dem Sensor (9) gekoppelt ist und das eine λ-geführte Regelung des Stellgliedes (4) ermöglicht, wobei das Regelsystem (10) die am Stellglied (4) eingestellte Stellgröße (y) und die Grenzwerte (ymax, ymin) der am Stellglied (4) einstellbaren Stellgrößen (y) kennt und wobei das Regelsystem (10) aus dem historischen zeitlichen Verlauf (Vh) der Stellgröße (y) einen Ausfallzeitpunkt (t2) berechnet, bei dem die Stellgröße (y) einen ihrer Grenzwerte (ymax, ymin) erreicht.
- Gasverbrennungsgerät nach Anspruch 1,
dadurch gekennzeichnet, daß das Regelsystem (10) ein Warnsignal erzeugt, wenn der berechnete Ausfallzeitpunkt (t2) innerhalb einer vorbestimmten Mindestzeitspanne (tmin) liegt. - Gasverbrennungsgerät nach Anspruch 1 oder 2,
dadurch gekennzeichnet, daß das Regelsystem (10) ein Warnsignal erzeugt, wenn der Ausfallzeitpunkt (t2) erreicht oder überschritten ist. - Gasverbrennungsgerät nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet, daß das Regelsystem (10) aus dem historischen zeitlichen Verlauf (Vh) der Stellgröße (y) einen zukünftigen zeitlichen Verlauf (Vz) der Stellgröße (y) berechnet und daraus den Ausfallzeitpunkt (t2) berechnet.
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 (de) | 2002-09-11 |
EP1239220A3 EP1239220A3 (de) | 2002-10-30 |
EP1239220B1 EP1239220B1 (de) | 2007-01-03 |
Family
ID=7676685
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01129917A Expired - Lifetime EP1239220B1 (de) | 2001-03-08 | 2001-12-15 | Verfahren zur Regelung eines Gasverbrennungsgerätes, insbesondere eines Gasheizgerätes |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1239220B1 (de) |
DE (2) | DE10111077C2 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1467149A1 (de) * | 2003-04-11 | 2004-10-13 | E.ON Ruhrgas AG | Verfahren zum Überwachen der Verbrennung in einer Verbrennungseinrichtung |
EP2103873A2 (de) | 2008-03-20 | 2009-09-23 | Linde AG | Vorrichtung zur Gemischüberwachung für Fluidgemische aus zwei Fluiden |
EP2966353A1 (de) * | 2014-07-10 | 2016-01-13 | Riello S.p.A. | Nachrüstbare anordnung für heizgaskessel und verfahren zum modifizieren eines heizgaskessels |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3290802B1 (de) * | 2016-09-02 | 2022-01-19 | Robert Bosch GmbH | Verfahren zum festlegen eines inspektionszeitpunktes in einem heizsystem sowie eine steuereinheit und ein heizsystem |
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0050840A1 (de) * | 1980-10-23 | 1982-05-05 | Karl Dungs GmbH & Co. | Verfahren zur Einstellung von Verbundreglern für Brenner in Wärmeerzeugungsanlagen |
EP0209771A1 (de) * | 1985-07-24 | 1987-01-28 | Bieler + Lang GmbH | Verfahren und Anordnung zur Feinregulierung des Brennstoffmengenstromes an brennerbetriebenen Feuerungsanlagen durch Messung des Restsauerstoffes und des Kohlenmonoxidgehaltes in den Abgasen |
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)
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 |
EP0770824B1 (de) * | 1995-10-25 | 2000-01-26 | STIEBEL ELTRON GmbH & Co. KG | Verfahren und Schaltung zur Regelung eines Gasbrenners |
-
2001
- 2001-03-08 DE DE10111077A patent/DE10111077C2/de not_active Expired - Fee Related
- 2001-12-15 DE DE50111790T patent/DE50111790D1/de not_active Expired - Lifetime
- 2001-12-15 EP EP01129917A patent/EP1239220B1/de not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0050840A1 (de) * | 1980-10-23 | 1982-05-05 | Karl Dungs GmbH & Co. | Verfahren zur Einstellung von Verbundreglern für Brenner in Wärmeerzeugungsanlagen |
EP0209771A1 (de) * | 1985-07-24 | 1987-01-28 | Bieler + Lang GmbH | Verfahren und Anordnung zur Feinregulierung des Brennstoffmengenstromes an brennerbetriebenen Feuerungsanlagen durch Messung des Restsauerstoffes und des Kohlenmonoxidgehaltes in den Abgasen |
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1467149A1 (de) * | 2003-04-11 | 2004-10-13 | E.ON Ruhrgas AG | Verfahren zum Überwachen der Verbrennung in einer Verbrennungseinrichtung |
EP2103873A2 (de) | 2008-03-20 | 2009-09-23 | Linde AG | Vorrichtung zur Gemischüberwachung für Fluidgemische aus zwei Fluiden |
DE102008015311A1 (de) | 2008-03-20 | 2009-09-24 | Linde Ag | Vorrichtung zur Gemischüberwachung für Gasgemische aus zwei Gasen |
EP2966353A1 (de) * | 2014-07-10 | 2016-01-13 | Riello S.p.A. | Nachrüstbare anordnung für heizgaskessel und verfahren zum modifizieren eines heizgaskessels |
EP3524884A1 (de) * | 2014-07-10 | 2019-08-14 | Riello S.p.A. | Nachrüstbare anordnung für heizgaskessel und verfahren zum modifizieren eines heizgaskessels |
Also Published As
Publication number | Publication date |
---|---|
DE10111077A1 (de) | 2002-09-26 |
EP1239220B1 (de) | 2007-01-03 |
DE10111077C2 (de) | 2003-11-06 |
EP1239220A3 (de) | 2002-10-30 |
DE50111790D1 (de) | 2007-02-15 |
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