EP0962703B1 - Control method for gas burner - Google Patents
Control method for gas burner Download PDFInfo
- Publication number
- EP0962703B1 EP0962703B1 EP99110256A EP99110256A EP0962703B1 EP 0962703 B1 EP0962703 B1 EP 0962703B1 EP 99110256 A EP99110256 A EP 99110256A EP 99110256 A EP99110256 A EP 99110256A EP 0962703 B1 EP0962703 B1 EP 0962703B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- gas
- burner
- ionization signal
- air mixture
- control method
- 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
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
- F23N2227/00—Ignition or checking
- F23N2227/20—Calibrating devices
Definitions
- the invention relates to a control method for gas burners according to the preamble of Claim 1.
- Control methods for gas burners serve to provide a gas / air mixture, that is, supplying a gas flow and a combustion air flow to a burner.
- the ratio between the gas flow and the combustion air flow and the gas pressure and the combustion air pressure is called the gear ratio.
- the quality of the gas supplied by the gas supply - the quality of Gas is defined by a so-called Wobbe index - fluctuates, must to Ensuring optimum and complete combustion of the gas / air mixture in Depending on the quality of the gas can be varied accordingly.
- the present invention is based on the problem, a to provide improved control method for gas burners. According to the invention the problem by a control method with the features of claim 1 solved.
- the control method for gas burners involves the provision of a gas / air mixture for a burner.
- the burner is a gas stream and a Supplied combustion air flow.
- the ratio between gas flow and Combustion air flow or the ratio between gas pressure and Combustion air pressure is called the gear ratio.
- the ionization signal is exclusively in an area in the vicinity of a burner full load operation for setting the transmission ratio in Dependence of gas quality used.
- This range is preferably between 70% and 100% of the burner full load, but can also be between 60% and 100% of the Brennerstollast Stahls lie.
- This feature of the invention is the idea on the basis that only during this working state or operating state of the burner Ionization signal provides a reliable statement about the combustion process.
- the gas / air mixture is dependent on the previously determined translation ratio.
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)
Description
Die Erfindung betrifft eine Regelungsverfahren für Gasbrenner gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a control method for gas burners according to the preamble of Claim 1.
Regelungsverfahren für Gasbrenner dienen der Bereitstellung eines Gas/Luft-Gemisches, also dem Zuführen eines Gasstroms und eines Verbrennungsluftstroms zu einem Brenner.Control methods for gas burners serve to provide a gas / air mixture, that is, supplying a gas flow and a combustion air flow to a burner.
Um innerhalb des Gasbrenners für eine optimale und vollständige Verbrennung des Brennstoffs, nämlich des Gases, zu sorgen, muß der Gasbrenner mit einem entsprechend abgestimmten Gas/Luft-Gemisch versorgt werden. Das Verhältnis zwischen dem Gasstrom und dem Verbrennungsluftstrom bzw. dem Gasdruck und dem Verbrennungsluftdruck bezeichnet man als Übersetzungsverhältnis.To within the gas burner for optimal and complete combustion of the Fuel, namely the gas to ensure the gas burner with a corresponding tuned gas / air mixture are supplied. The ratio between the gas flow and the combustion air flow and the gas pressure and the combustion air pressure is called the gear ratio.
Da jedoch die Qualität des von der Gasversorgung bereitgestellten Gases - die Qualität von Gas wird durch einen sogenannten Wobbe-Index definiert - schwankt, muß zur Gewährleistung einer optimalen und vollständigen Verbrennung das Gas/Luft-Gemisch in Abhängigkeit von der Qualität des Gases entsprechend variiert werden.However, as the quality of the gas supplied by the gas supply - the quality of Gas is defined by a so-called Wobbe index - fluctuates, must to Ensuring optimum and complete combustion of the gas / air mixture in Depending on the quality of the gas can be varied accordingly.
Um die Qualität des bereitgestellten Gases berücksichtigen zu können, sind aus dem Stand der Technik Regelungsverfahren bekannt, bei denen ein Ionisationssignal eines Sensors, insbesondere einer in die Brennerflamme des Gasbrenners ragenden Meßelektrode, zur Anpassung des Gas/Luft-Gemisches an unterschiedliche Gasqualitäten verwendet wird. Diesbezüglich kann auf die DE-A-44 33 425, DE 39 37 290 A1 sowie DE 195 39 568 C1 verwiesen werden.In order to be able to consider the quality of the provided gas, are out of the state the technology control method in which an ionization signal of a sensor, in particular a projecting into the burner flame of the gas burner measuring electrode, for Adjustment of the gas / air mixture to different gas qualities is used. In this regard, to DE-A-44 33 425, DE 39 37 290 A1 and DE 195 39 568 C1 be referenced.
Bei den bekannten, ein Ionisationssignal verwendenden Regelungsverfahren für Gasbrenner wird das Ionisationssignal über den gesamten Arbeitsbereich bzw. Betriebsbereich des Brenners zur Anpassung des Gas/Luft-Gemisches an unterschiedliche Gasqualitäten verwendet. Bei geringen Betriebslasten des Brenners ist das Ionisationssignal jedoch stark von Außeneinflüssen abhängig und liefert demzufolge keine verlässliche Auskunft über die tatsächlich im Brenner herrschenden Verbrennungsverhältnisse. Die Regelungsverfahren nach dem Stand der Technik führen demzufolge zu einer instabilen und damit unzureichenden Regelung.In the known control method using an ionization signal for Gas burner is the ionization signal over the entire work area or Operating range of the burner to adapt the gas / air mixture to different Gas qualities used. At low operating loads of the burner that is Ionization signal, however, strongly dependent on external influences and therefore provides none Reliable information about the actual ruling in the Brenner Combustion conditions. The control methods according to the prior art lead Consequently, an unstable and thus inadequate regulation.
Hiervon ausgehend liegt der vorliegenden Erfindung das Problem zugrunde, ein verbessertes Regelungsverfahren für Gasbrenner bereitzustellen. Erfindungsgemäß wird das Problem durch ein Regelungsverfahren mit den Merkmalen des Patentanspruchs 1 gelöst.On this basis, the present invention is based on the problem, a to provide improved control method for gas burners. According to the invention the problem by a control method with the features of claim 1 solved.
Eine bevorzugte Weiterbildung der Erfindung ergibt sich aus dem abhängigen Anspruch 2 und der Beschreibung.A preferred embodiment of the invention results from the dependent claim 2 and the Description.
Bei dem Regelungsverfahren für Gasbrenner geht es um die Bereitstellung eines Gas/Luft-Gemisches für einen Brenner. Hierzu wird dem Brenner ein Gasstrom und ein Verbrennungsluftstrom zugeführt. Das Verhältnis zwischen Gasstrom und Verbrennungsluftstrom bzw. das Verhältnis zwischen Gasdruck und Verbrennungsluftdruck bezeichnet man als Übersetzungsverhältnis.The control method for gas burners involves the provision of a gas / air mixture for a burner. For this purpose, the burner is a gas stream and a Supplied combustion air flow. The ratio between gas flow and Combustion air flow or the ratio between gas pressure and Combustion air pressure is called the gear ratio.
Mit Hilfe eines ein Ionisationssignal erzeugenden Sensors wird der Verbrennungsprozeß im Brenner überwacht. Aus dem Ionisationssignal können Informationen über den Verbrennungsprozeß und somit über die vorhandene Gasqualität gewonnen werden.With the help of a sensor generating an ionization signal, the combustion process monitored in the burner. From the ionization signal information about the Combustion process and thus be obtained on the existing gas quality.
Erfindungsgemäß wird das Ionisationssignal ausschließlich in einem Bereich in der Nähe eines Brenner-Vollastbetriebs zur Einstellung des Übersetzungsverhältnisses in Abhängigkeit der Gasqualität verwendet. Dieser Bereich liegt vorzugsweise zwischen 70% und 100% des Brenner-Vollastbetriebs, kann jedoch auch zwischen 60% und 100% des Brennervollastbetriebs liegen. Diesem erfindungsgemäßen Merkmal liegt der Gedanke zugrunde, daß nur während dieses Arbeitszustands bzw. Betriebszustands des Brenners das Ionisationssignal eine zuverlässige Aussage über den Verbrennungsprozeß liefert.According to the invention, the ionization signal is exclusively in an area in the vicinity of a burner full load operation for setting the transmission ratio in Dependence of gas quality used. This range is preferably between 70% and 100% of the burner full load, but can also be between 60% and 100% of the Brennerstollastbetriebs lie. This feature of the invention is the idea on the basis that only during this working state or operating state of the burner Ionization signal provides a reliable statement about the combustion process.
Außerhalb des obengenannten Bereichs wird das Gas/Luft-Gemisch in Abhängigkeit des zuvor bestimmten Übersetzungsverhältnisses geregelt.Outside the above range, the gas / air mixture is dependent on the previously determined translation ratio.
Mit anderen Worten wird demnach zur Bestimmung eines die Gasqualität berücksichtigenden Übersetzungsverhältnisses der Brenner mit insbesondere 70% bis 100% des Brenner-Vollastbetriebs gefahren und während dieses Betriebs mit Hilfe eines Ionisationssignals ein die vorhandene Gasqualität berücksichtigendes Übersetzungsverhältnis ermittelt. Sobald der Arbeitszustand des Brenners den Bereich von insbesondere 70% bis 100% des Brenner-Vollastbetriebs verläßt, wird das Gas/Luft-Gemisch unter Beibehaltung des zuletzt bestimmten Übersetzungsverhältnisses geregelt. Dies sorgt für eine besonders stabile Regelung.In other words, to determine one of the gas quality Considering the ratio of the burner with in particular 70% to 100% of the burner full load operation and during this operation with the help of a Ionization signal a the existing gas quality considering Gear ratio determined. Once the working condition of the burner reaches the range of In particular, 70% to 100% of the burner full load leaves, the gas / air mixture while maintaining the most recent translation ratio. This ensures a particularly stable control.
Claims (2)
- Regulation method for gas burners for providing a gas/air mixture, specifically for supplying a gas flow and a combustion air flow to a burner, wherein an ionization signal of a sensor is used to adapt the gas/air mixture to different gas qualities, characterized in thata) the ionization signal is used for setting a transmission ratio solely in a range close to full-load operation of the burner,b) outside the range of full-load operation of the burner, the gas/air mixture is regulated as a function of this transmission ratio,c) the range in method-step a) lies between 60% and 100% of full-load operation of the burner.
- Regulation method for gas burners according to Claim 1, characterized in that the ionization signal is used for setting a transmission ratio in a range of 70% to 100% of full-load operation of the burner.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19824523 | 1998-06-02 | ||
| DE19824523A DE19824523C2 (en) | 1998-06-02 | 1998-06-02 | Control procedures for gas burners |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0962703A2 EP0962703A2 (en) | 1999-12-08 |
| EP0962703A3 EP0962703A3 (en) | 2002-10-30 |
| EP0962703B1 true EP0962703B1 (en) | 2005-08-17 |
Family
ID=7869610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP99110256A Expired - Lifetime EP0962703B1 (en) | 1998-06-02 | 1999-05-27 | Control method for gas burner |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0962703B1 (en) |
| DE (2) | DE19824523C2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2631541A1 (en) | 2012-02-27 | 2013-08-28 | Honeywell Technologies Sarl | Method for operating a gas burner |
| EP2667097A1 (en) | 2012-05-24 | 2013-11-27 | Honeywell Technologies Sarl | Method for operating a gas burner |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19912076A1 (en) * | 1999-03-18 | 2000-09-21 | Kromschroeder Ag G | Premix burner for gaseous fuels |
| DE10003819C1 (en) * | 2000-01-28 | 2001-05-17 | Honeywell Bv | Gas burner operating process, involving use of ionization signal and comparing differences in its readings |
| DE10032764C2 (en) | 2000-07-05 | 2002-12-12 | Rational Ag | Method for adapting the performance of a combustion system of a cooking appliance and a combustion system using this method |
| NL1015797C2 (en) | 2000-07-25 | 2002-01-28 | Nefit Buderus B V | Combustion device and method for controlling a combustion device. |
| DE10040358B4 (en) | 2000-08-16 | 2006-03-30 | Honeywell B.V. | Control method for gas burners |
| DE10062844B4 (en) * | 2000-12-15 | 2005-12-15 | Honeywell B.V. | Control method for gas burners |
| DE10145592C1 (en) * | 2001-09-14 | 2003-06-18 | Rational Ag | Method for setting the power of gas-operated cooking appliances and cooking appliance using this method |
| DE10341543A1 (en) * | 2003-09-09 | 2005-04-28 | Honeywell Bv | Control method for gas burners |
| DE10348159B4 (en) * | 2003-10-13 | 2011-12-08 | Gaswärme-Institut e.V. Essen | burner arrangement |
| DE102013214610A1 (en) * | 2013-07-26 | 2015-01-29 | E.On New Build & Technology Gmbh | Method and device for determining characteristic values of fuel gases |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2638819A1 (en) * | 1988-11-10 | 1990-05-11 | Vaillant Sarl | METHOD AND DEVICE FOR PREPARING A COMBUSTIBLE-AIR MIXTURE FOR COMBUSTION |
| DE4433425C2 (en) | 1994-09-20 | 1998-04-30 | Stiebel Eltron Gmbh & Co Kg | Control device for setting a gas-combustion air mixture in a gas burner |
| DE19502900C2 (en) * | 1995-01-31 | 1997-12-18 | Stiebel Eltron Gmbh & Co Kg | Ionization electrode |
| DE19618573C1 (en) * | 1996-05-09 | 1997-06-26 | Stiebel Eltron Gmbh & Co Kg | Gas burner regulating method controlled by ionisation electrode signal |
| DE19539568C1 (en) * | 1995-10-25 | 1997-06-19 | Stiebel Eltron Gmbh & Co Kg | Gas burner regulation system |
| DE29612014U1 (en) * | 1996-07-10 | 1996-09-05 | Buderus Heiztechnik Gmbh | Gas burner |
-
1998
- 1998-06-02 DE DE19824523A patent/DE19824523C2/en not_active Expired - Fee Related
-
1999
- 1999-05-27 DE DE59912416T patent/DE59912416D1/en not_active Expired - Lifetime
- 1999-05-27 EP EP99110256A patent/EP0962703B1/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2631541A1 (en) | 2012-02-27 | 2013-08-28 | Honeywell Technologies Sarl | Method for operating a gas burner |
| EP2667097A1 (en) | 2012-05-24 | 2013-11-27 | Honeywell Technologies Sarl | Method for operating a gas burner |
Also Published As
| Publication number | Publication date |
|---|---|
| DE19824523A1 (en) | 1999-12-09 |
| EP0962703A2 (en) | 1999-12-08 |
| DE59912416D1 (en) | 2005-09-22 |
| DE19824523C2 (en) | 2000-06-08 |
| EP0962703A3 (en) | 2002-10-30 |
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