EP1215440A2 - Regelungsverfahren für Gasbrenner - Google Patents
Regelungsverfahren für Gasbrenner Download PDFInfo
- Publication number
- EP1215440A2 EP1215440A2 EP01129735A EP01129735A EP1215440A2 EP 1215440 A2 EP1215440 A2 EP 1215440A2 EP 01129735 A EP01129735 A EP 01129735A EP 01129735 A EP01129735 A EP 01129735A EP 1215440 A2 EP1215440 A2 EP 1215440A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- burner
- gas
- slew rate
- ionization signal
- measured
- 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
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
Definitions
- the invention relates to a control method for gas burners according to the preamble of Claim 1.
- Control procedures for gas burners are used to provide a gas / air mixture, that is, supplying a gas stream and a combustion air stream to a burner.
- the gas burner To inside the gas burner for optimal and complete combustion of the To provide fuel, namely the gas, the gas burner must be equipped accordingly coordinated gas / air mixture can be supplied.
- the ratio between the gas flow and the combustion air flow or the gas pressure and the combustion air pressure is called the gear ratio.
- the quality of the gas provided by the gas supply - the quality of Gas is defined by a so-called Wobbe index - fluctuates, has to Ensuring an optimal 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 of a to provide improved control method for gas burners. According to the invention Problem solved by a control method with the features of claim 1.
- the control process for gas burners involves the provision of a gas / air mixture for a burner.
- the burner is a gas stream and a Combustion air flow supplied.
- the ratio between gas flow and Combustion air flow or the relationship between gas pressure and combustion air pressure is called the gear ratio.
- the combustion process in the Burner monitors.
- Information about the. Can be obtained from the ionization signal Combustion process and thus be obtained on the existing gas quality.
- the Ionization signal is only in an area near a burner full load operation to set the gear ratio depending on the Gas quality used. This range is preferably between 70% and 100% of the Burner full load operation, but can also between 60% and 100% of Burner full load operation. Outside the above range the gas / air mixture regulated depending on the previously determined transmission ratio.
- Burner gear ratio with in particular 70% to 100% of the burner at full load driven and during this operation with the help of an ionization signal a transmission ratio taking into account the existing gas quality is determined. As soon as the working state of the burner ranges in particular from 70% to 100% of the burner at full load leaves, the gas / air mixture while maintaining the last certain transmission ratio regulated.
- a reference slew rate for the Ionization signal determined.
- This reference slew rate is for a burner with predetermined burner conditions, in particular at a predetermined temperature and Burner downtime, determined and saved.
- the current rate of rise of the ionization signal measured, namely when the Burner when starting due to a heat request the predetermined Has burner conditions.
- This measured rate of increase is measured with the Reference slew rate compared, and then when the measured Slew rate from the reference slew rate by a predetermined one Dimension deviates, a new gear ratio is set.
- the burner operated in the vicinity of a burner at full load. Should it not be possible to To operate the burner in the vicinity of the burner at full load, an alternative can also be used Maintenance indicator can be activated to show an operator the change.
- the above method can still be improved may have a burner reference start defined from certain burner conditions.
- the scheme states that the burner will not for a predetermined period of time was operated - so-called downtime - and all temperatures - e.g. Water temperatures of a boiler to be operated by the burner - below one specified value, the burner should first be on for a specified period of time a predetermined value of burner full load operation, e.g. 75% of the burner at full load, operated before regulated depending on the heat requirement becomes.
- the invention relates to a control method for gas burners for providing a Gas / air mixture.
- the rate of increase of the Ionization signal measured.
- This measured rate of increase is measured with a Reference slew rate for the ionization signal compared, and then when the measured slew rate from the reference slew rate by one a predetermined dimension deviates, a new gear ratio is set.
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)
- Gas Burners (AREA)
Abstract
Description
Claims (6)
- Regelungsverfahren für Gasbrenner zur Bereitstellung eines Gas/Luft-Gemisches, nämlich zum Zuführen eines Gasstroms und eines Verbrennungsluftstroms zu einem Brenner, wobei ein Ionisationssignal eines Sensors verwendet wird um das Gas/Luft-Gemisch an unterschiedliche Gasqualitäten anzupassen, wobei das Ionisationssignal ausschließlich in einem Bereich in der Nähe eines Brenner-Vollastbetriebs zur Einstellung eines Übersetzungsverhältnisses verwendet wird, und wobei außerhalb des Bereichs des Brenner-Vollastbetriebs das Gas/Luft-Gemisch in Abhängigkeit dieses Übersetzungsverhältnisses geregelt wird, dadurch gekennzeichnet, daßa) beim Starten des Brenners die Anstiegsgeschwindigkeit des Ionisationssignals gemessen wird,b) die gemessene Anstiegsgeschwindigkeit mit einer Referenz-Anstiegsgeschwindigkeit für das Ionisationssignal verglichen wird,c) dann, wenn die gemessene Anstiegsgeschwindigkeit von der Referenz-Anstiegsgeschwindigkeit um ein vorbestimmtes Maß abweicht, ein neues Übersetzungsverhältnis eingestellt wird.
- Regelungsverfahren für Gasbrenner nach Anspruch 1, dadurch gekennzeichnet, daß die Referenz-Anstiegsgeschwindigkeit für einen Brenner mit vorbestimmten Brennerbedingungen, insbesondere bei vorbestimmter Temperatur und Stillstandszeit des Brenners, ermittelt und gespeichert wird.
- Regelungsverfahren für Gasbrenner nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß dann, wenn der Brenner beim Starten infolge einer Wärmeanforderung die vorbestimmten Brennerbedingungen aufweist, die Anstiegsgeschwindigkeit gemessen und mit einer Referenz-Anstiegsgeschwindigkeit verglichen wird.
- Regelungsverfahren für Gasbrenner nach einem oder mehreren der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß dann, wenn die gemessene Anstiegsgeschwindigkeit von der Referenz-Anstiegsgeschwindigkeit um ein vorbestimmtes Maß abweicht, der Brenner zur Einstellung eines neuen Übersetzungsverhältnisses in der Nähe eines Brenner-Vollastbetriebs betrieben wird.
- Regelungsverfahren für Gasbrenner nach einem oder mehreren der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß dann, wenn die gemessene Anstiegsgeschwindigkeit von der Referenz-Anstiegsgeschwindigkeit um ein vorbestimmtes Maß abweicht und der Brenner zur Einstellung eines neuen Übersetzungsverhältnisses nicht in der Nähe eines Brenner-Vollastbetriebs betrieben werden kann, eine Wartungsanzeige aktiviert wird.
- Regelungsverfahren für Gasbrenner nach einem oder mehreren der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß das Ionisationssignal in einem Bereich von 70% bis 100% des Brenner-Vollastbetriebs zur Einstellung eines Übersetzungsverhältnisses verwendet wird.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10062844 | 2000-12-15 | ||
DE10062844A DE10062844B4 (de) | 2000-12-15 | 2000-12-15 | Regelungsverfahren für Gasbrenner |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1215440A2 true EP1215440A2 (de) | 2002-06-19 |
EP1215440A3 EP1215440A3 (de) | 2004-06-30 |
EP1215440B1 EP1215440B1 (de) | 2006-06-14 |
Family
ID=7667481
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01129735A Expired - Lifetime EP1215440B1 (de) | 2000-12-15 | 2001-12-13 | Regelungsverfahren für Gasbrenner |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1215440B1 (de) |
AT (1) | ATE330180T1 (de) |
DE (2) | DE10062844B4 (de) |
DK (1) | DK1215440T3 (de) |
ES (1) | ES2266080T3 (de) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3937290A1 (de) | 1988-11-10 | 1990-05-17 | Vaillant Joh Gmbh & Co | Verfahren und einrichtung zur herstellung eines einer verbrennung zuzufuehrenden brennstoff-verbrennungsluft-gemisches |
DE4433425A1 (de) | 1994-09-20 | 1996-03-21 | Stiebel Eltron Gmbh & Co Kg | Regeleinrichtung zum Einstellen eines Gas-Verbrennungsluft-Gemisches bei einem Gasbrenner |
DE19539568C1 (de) | 1995-10-25 | 1997-06-19 | Stiebel Eltron Gmbh & Co Kg | Verfahren und Schaltung zur Regelung eines Gasbrenners |
DE19824523A1 (de) | 1998-06-02 | 1999-12-09 | Honeywell Bv | Regelungsverfahren für Gasbrenner |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19831648B4 (de) * | 1998-07-15 | 2004-12-23 | Stiebel Eltron Gmbh & Co. Kg | Verfahren zur funktionalen Adaption einer Regelelektronik an ein Gasheizgerät |
-
2000
- 2000-12-15 DE DE10062844A patent/DE10062844B4/de not_active Expired - Lifetime
-
2001
- 2001-12-13 ES ES01129735T patent/ES2266080T3/es not_active Expired - Lifetime
- 2001-12-13 AT AT01129735T patent/ATE330180T1/de not_active IP Right Cessation
- 2001-12-13 EP EP01129735A patent/EP1215440B1/de not_active Expired - Lifetime
- 2001-12-13 DE DE50110141T patent/DE50110141D1/de not_active Expired - Lifetime
- 2001-12-13 DK DK01129735T patent/DK1215440T3/da active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3937290A1 (de) | 1988-11-10 | 1990-05-17 | Vaillant Joh Gmbh & Co | Verfahren und einrichtung zur herstellung eines einer verbrennung zuzufuehrenden brennstoff-verbrennungsluft-gemisches |
DE4433425A1 (de) | 1994-09-20 | 1996-03-21 | Stiebel Eltron Gmbh & Co Kg | Regeleinrichtung zum Einstellen eines Gas-Verbrennungsluft-Gemisches bei einem Gasbrenner |
DE19539568C1 (de) | 1995-10-25 | 1997-06-19 | Stiebel Eltron Gmbh & Co Kg | Verfahren und Schaltung zur Regelung eines Gasbrenners |
DE19824523A1 (de) | 1998-06-02 | 1999-12-09 | Honeywell Bv | Regelungsverfahren für Gasbrenner |
Also Published As
Publication number | Publication date |
---|---|
DE10062844A1 (de) | 2002-07-11 |
DK1215440T3 (da) | 2006-09-04 |
EP1215440A3 (de) | 2004-06-30 |
ATE330180T1 (de) | 2006-07-15 |
DE50110141D1 (de) | 2006-07-27 |
DE10062844B4 (de) | 2005-12-15 |
EP1215440B1 (de) | 2006-06-14 |
ES2266080T3 (es) | 2007-03-01 |
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