EP1039227B1 - Verfahren zur Erkennung und Beurteilung von Zündproblemen - Google Patents
Verfahren zur Erkennung und Beurteilung von Zündproblemen Download PDFInfo
- Publication number
- EP1039227B1 EP1039227B1 EP00105904A EP00105904A EP1039227B1 EP 1039227 B1 EP1039227 B1 EP 1039227B1 EP 00105904 A EP00105904 A EP 00105904A EP 00105904 A EP00105904 A EP 00105904A EP 1039227 B1 EP1039227 B1 EP 1039227B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- ignition
- burner
- attempts
- ratio
- attempt
- 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.)
- Expired - Lifetime
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
- F23N5/20—Systems for controlling combustion with a time programme acting through electrical means, e.g. using time-delay relays
- F23N5/203—Systems for controlling combustion with a time programme acting through electrical means, e.g. using time-delay relays 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
- F23N5/02—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
- F23N2227/00—Ignition or checking
- F23N2227/32—Igniting for a predetermined number of cycles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2227/00—Ignition or checking
- F23N2227/36—Spark ignition, e.g. by means of a high voltage
Definitions
- the invention relates to a method for detecting and assessing ignition problems after the preliminary parts of the independent procedural claims as well as on a device for carrying out the method.
- a method for detecting and assessing ignition problems after the preliminary parts of the independent procedural claims as well as on a device for carrying out the method.
- Such a method is known for example from JP 07 119 965.
- the aim of the invention is to avoid this disadvantage and a method of the aforementioned Kind of suggesting that a clear conclusion on the condition of the burner allows or makes it possible to distinguish whether the ignition problems by a deteriorated condition of the burner or problems in controlling the ignition are conditional.
- the frequency determined by those cases in which there are a certain number of ignition attempts needed until the burner could be successfully ignited If the number of cases increases in which required more than one ignition attempt, in relation to those cases in which already the first ignition attempt after a start command for the burner was successful, Slowly, this is an indication of deterioration due to wear Condition of the burner. If this ratio changes essentially abruptly, then so This is an indication of problems with the control of the ignition or the gas supply.
- the same target may also be used according to the other alternative claim two can be achieved by detecting the number of unsuccessful attempts at ignition. advantage This method is that the counters can have lower capacity.
- Claim three describes a method according to the invention, in which the number of unsuccessful Ignition attempts in relation to the total number of ignition attempts is set, which the number of switching operations of the gas burner is taken into account.
- Another object of the invention is to provide a device for carrying out the invention Propose procedure.
- a fuel-fired heater is shown, be it a water heater for sanitary purposes, a circulating water heater, a boiler, a storage or a space heater.
- This heater 20 has a controller 1, which is assigned an ignition circuit 2 is, which is connected via a line 11 with an ignition electrode 21, the one Gas or oil burner 3 is assigned, which is provided with a solenoid valve 22 via a Fuel line 23 is supplied with gas or oil.
- the burner 3 is associated with a heat exchanger 24 which is connected to an exhaust gas collecting hood 25 is provided, which merges into a flue 26.
- the burner is a monitoring electrode 27, which is connected by means of a line 12 to the controller 1.
- a flame detection circuit 4 connected to the line 12 is.
- the controller 1 includes counters 5, 6 and 7, which are connected to a memory 8. Of the Memory 8 is provided via an interface 9 with a display 10 for the memory contents.
- the controller 1 also includes a timer 29, in which a safety time specified can be. If no flame formation is achieved within this safety period, a closure of the gas valve and after flushing the combustion chamber is a renewed Ignition test for the burner. After a certain number of futile attempts at ignition there is an interlocking shutdown, i. Closing the solenoid valve 22, which can only be lifted again by a manual intervention.
- a processor 28 provided in the controller 1 operates a program stored in the memory 8 and controls u.a. the ignition circuit 2 and this the ignition electrode 21 of the burner 3. Will within the safety time after the ignition command sufficient flame formation via the ionization path between the electrodes 21 and 27 from the flame detection circuit 4, that is, the ignition attempt was successful, the counter becomes 5 increments.
- the counter 5 indicates the number of cases in which already the first attempt at ignition was successful. In an optimal operation, therefore, the counters 6 and 7, which remain the Indicate the number of cases in which two or three attempts at ignition were required on the Value zero.
- the processor 1 works Program, which he retrieves from the memory 8, from.
- the number of cases where two attempts at ignition until successful burner start were counted in memory 6, are using a division member 30 in Relation to the number of cases in which a detonation attempt until successful burner start was needed, counted in memory 5, set.
- the two quotients are getting smaller as the number The burner starts, in which only one ignition attempt is necessary increases, while the Number of burner starts, where two or three ignition attempts are necessary, constant stay. If two or three ignition attempts are needed, the corresponding one increases Quotient.
- the respective minima of the quotients are stored together with time information from an operating hours counter 31 in the memory 8. If more than one ignition attempt is required at a burner start, the processor 28 calculates a gradient with the aid of a gradient sensor 32 from the respective minimum of the quotients, the number of operating hours when the corresponding minimum is reached, the corresponding quotient for two or three necessary ignition attempts and the number of operating hours , If the gradient exceeds a value G u predetermined in the memory 8, and at the same time drops below a different predetermined value G o (G o > G u applies), then this is an indication that the burner has to be maintained due to contamination. The processor 28 outputs a corresponding signal to the display 10. If the limit G o is exceeded, this is an indication of an error in the ignition or gas supply; the processor gives a corresponding signal to the display 10, indicating that the ignition and gas supply must be checked for faults.
- FIG 3 shows the algorithm of the method from the first ignition attempt to the successful one Operation or a lockout.
- FIG. 4 A variant of this method is shown in FIG. 4.
- the processor 28 operates in the stored program memory 8 and controls u.a. the igniter 2 and this the ignition electrode 21 of the burner 3. Will within a certain time after the ignition command does not detect sufficient flame formation, i. the first ignition attempt was unsuccessful, so the counter 5 is incremented.
- the counter 5 shows the number of cases in which already the first attempt at ignition unsuccessful was. In an optimal operation, the counters remain 5, 6 and 7, which the number of indicate unsuccessful ignition attempts, to the value zero.
- FIG. 5 shows the algorithm of the method illustrated in FIG. 4 from the first ignition attempt until successful operation or a lockout.
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)
- Control Of Combustion (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
- Feeding And Controlling Fuel (AREA)
Description
Claims (5)
- Verfahren zur Erkennung und Beurteilung von Zündproblemen bei einen Gasbrenner aufweisenden Geräten, bei denen nach jedem Startbefehl für den Brenner die Flammen überwacht werden und bei Ausbleiben der Flammen innerhalb einer bestimmten Zeitspanne ein weiterer Zündversuch gestartet wird und nach einer bestimmten Anzahl von Zündversuchen eine Störabschaltung erfolgt und nach jedem Startbefehl die Zahl der Zündversuche bis zur erfolgreichen Zündung gezählt wird, bei dem die Anzahl der Startbefehle ermittelt wird, bei denen ein, bzw. zwei, bzw. n-1, bzw. n Zündversuche bis zur erfolgreichen Zündung erforderlich waren, dadurch gekennzeichnet, dass das Verhältnis der Zahl der Fälle, bei denen es mehr als eines Zündversuches für den Brenner bedurfte, zu der Zahl der Fälle gebildet wird, bei denen der erste Zündversuch erfolgreich war, wobei bei einer langsamen Änderung des Verhältnisses ein Wartungshinweis für den Brenner, bei einer abrupten Änderung ein solcher auf die Ansteuerung der Zündung oder der Gaszufuhr erfolgt.
- Verfahren zur Erkennung und Beurteilung von Zündproblemen bei einen Gasbrenner aufweisenden Geräten, bei denen nach jedem Startbefehl für den Brenner die Flammen überwacht werden und bei Ausbleiben der Flammen innerhalb einer bestimmten Zeitspanne ein weiterer Zündversuch gestartet wird und nach einer bestimmten Anzahl von Zündversuchen eine Störabschaltung erfolgt und nach jedem Startbefehl die Zahl der erfolglosen Zündversuche gezählt wird, bei dem die Anzahl der Startbefehle ermittelt wird, bei denen ein, bzw. zwei, bzw. n-1, bzw. n Zündversuche erfolglos waren, dadurch gekennzeichnet, dass das Verhältnis der Zahl der Fälle, bei denen mehr als ein Zündversuch erfolglos war, zu der Zahl der Fälle gebildet wird, bei denen der erste Zündversuch erfolglos war, wobei bei einer langsamen Änderung des Verhältnisses ein Wartungshinweis für den Brenner, bei einer abrupten Änderung ein solcher auf die Ansteuerung der Zündung oder der Gaszufuhr erfolgt.
- Verfahren zur Erkennung und Beurteilung von Zündproblemen bei einen Gasbrenner aufweisenden Geräten gemäß Anspruch 2, dadurch gekennzeichnet, dass die Anzahl der erfolglosen Zündversuche im Verhältnis zu der Gesamtzahl der Zündversuche ermittelt wird, wobei bei einer langsamen Änderung des Verhältnisses ein Wartungshinweis für den Brenner, bei einer abrupten Änderung ein solcher auf die Ansteuerung der Zündung oder der Gaszufuhr erfolgt.
- Einrichtung zur Durchführung des Verfahrens gemäß mindestens einem der vorgenannten Ansprüche, bei der eine mit einem Flammenwächter und einer von einem Prozessor (1) gesteuerten Zünder (2) verbundene Flammenerkennungsschaltung (4) vorgesehen ist, dadurch gekennzeichnet, dass die Erkennungsschaltung (4) mit einer der Anzahl der nach einem Startbefehl zulässigen Zahl von Zündversuchen entsprechenden Anzahl von Zählern (5, 6, 7) verbunden ist, die ihrerseits mit einem Speicher (8) verbunden sind, der über eine Schnittstelle (9) auslesbar ist.
- Einrichtung nach Anspruch 4, dadurch gekennzeichnet, dass der Speicher als EEPROM ausgebildet ist.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT00105904T ATE306051T1 (de) | 1999-03-23 | 2000-03-22 | Verfahren zur erkennung und beurteilung von zündproblemen |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT52999 | 1999-03-23 | ||
AT0052999A AT407785B (de) | 1999-03-23 | 1999-03-23 | Verfahren zur erkennung und beurteilung von zündproblemen |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1039227A2 EP1039227A2 (de) | 2000-09-27 |
EP1039227A3 EP1039227A3 (de) | 2002-05-15 |
EP1039227B1 true EP1039227B1 (de) | 2005-10-05 |
Family
ID=3493044
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00105904A Expired - Lifetime EP1039227B1 (de) | 1999-03-23 | 2000-03-22 | Verfahren zur Erkennung und Beurteilung von Zündproblemen |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1039227B1 (de) |
AT (2) | AT407785B (de) |
DE (2) | DE50011271D1 (de) |
ES (1) | ES2249206T3 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7308367B2 (en) | 2003-02-03 | 2007-12-11 | Qcept Technologies, Inc. | Wafer inspection system |
US6957154B2 (en) | 2003-02-03 | 2005-10-18 | Qcept Technologies, Inc. | Semiconductor wafer inspection system |
US7103482B2 (en) | 2003-02-03 | 2006-09-05 | Qcept Technologies, Inc. | Inspection system and apparatus |
DE102004020715A1 (de) * | 2004-04-28 | 2005-11-24 | J. Eberspächer GmbH & Co. KG | Fahrzeugheizsystem und Verfahren zum Betreiben eines Fahrzeugheizsystems |
DE102017218694A1 (de) | 2017-10-19 | 2019-04-25 | Robert Bosch Gmbh | Verfahren zu einem Betrieb einer gasbetriebenen Heiz- und/oder Warmwassereinheit |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT393896B (de) * | 1989-02-13 | 1991-12-27 | Vaillant Gmbh | Brennstoffbeheiztes geraet, z.b. wasserheizer |
JPH02275219A (ja) * | 1989-04-14 | 1990-11-09 | Mitsubishi Electric Corp | 燃焼器の制御装置 |
DD286658A5 (de) * | 1989-07-03 | 1991-01-31 | Veb Metallurgieelektronik,De | Digitale schaltungsanordnung zur ansteuerung von direktzuendenden gasbrennern |
JP3061429B2 (ja) * | 1991-02-01 | 2000-07-10 | パロマ工業株式会社 | 燃焼器具の使用状況監視装置 |
JPH07119965A (ja) * | 1993-10-29 | 1995-05-12 | Noritz Corp | 燃焼装置 |
-
1999
- 1999-03-23 AT AT0052999A patent/AT407785B/de not_active IP Right Cessation
-
2000
- 2000-03-22 AT AT00105904T patent/ATE306051T1/de active
- 2000-03-22 ES ES00105904T patent/ES2249206T3/es not_active Expired - Lifetime
- 2000-03-22 DE DE50011271T patent/DE50011271D1/de not_active Expired - Lifetime
- 2000-03-22 EP EP00105904A patent/EP1039227B1/de not_active Expired - Lifetime
- 2000-03-22 DE DE10014101A patent/DE10014101A1/de not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
ES2249206T3 (es) | 2006-04-01 |
EP1039227A3 (de) | 2002-05-15 |
ATE306051T1 (de) | 2005-10-15 |
DE10014101A1 (de) | 2000-10-12 |
ATA52999A (de) | 2000-10-15 |
AT407785B (de) | 2001-06-25 |
DE50011271D1 (de) | 2006-02-16 |
EP1039227A2 (de) | 2000-09-27 |
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