EP0495358B1 - Actuator for the two-stage power regulation of a gas power burner - Google Patents
Actuator for the two-stage power regulation of a gas power burner Download PDFInfo
- Publication number
- EP0495358B1 EP0495358B1 EP92100080A EP92100080A EP0495358B1 EP 0495358 B1 EP0495358 B1 EP 0495358B1 EP 92100080 A EP92100080 A EP 92100080A EP 92100080 A EP92100080 A EP 92100080A EP 0495358 B1 EP0495358 B1 EP 0495358B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- chamber
- gas
- chamber wall
- orifices
- burner
- 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
- 239000007789 gas Substances 0.000 claims abstract description 47
- 239000000203 mixture Substances 0.000 claims abstract description 16
- 239000002737 fuel gas Substances 0.000 claims abstract description 9
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 3
- 230000000153 supplemental effect Effects 0.000 claims 4
- 238000007789 sealing Methods 0.000 claims 1
- 238000002485 combustion reaction Methods 0.000 description 9
- 238000010438 heat treatment Methods 0.000 description 7
- 238000010304 firing Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/60—Devices for simultaneous control of gas and combustion air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/62—Mixing devices; Mixing tubes
Definitions
- the invention relates to an actuator for the two-stage power control of gas forced draft burners, the burner being preceded by a mixer with a chamber into which an air supply and a fuel gas supply for mixture formation open in the chamber and from which several mixing holes in a chamber wall designed as a hole mixer Guide the mixture to the mixer.
- fan burners are used, in which, in contrast to atmospheric gas burners, whose flame that can be regulated with an actuator in the gas supply is formed in a combustion chamber that is open to the surroundings of the gas heater and the combustion air is generated automatically from the surroundings of the gas heater sucked in, the combustion takes place in a closed combustion chamber and the combustion air required for the combustion is blower-assisted and fed to the formation of flames.
- Premixed forced draft burners are known for this purpose, in which the combustion air conveyed by the burner fan is combined with the gas and mixed before the flame is formed.
- control devices are known with which the amount and also the mixing ratio of a mixture of gas and air flowing from the control device can be modulated by changing an air control cross section and a gas control cross section .
- Such control devices are for gas boilers of ordinary building central heating systems, the nominal heat output is only in the range of 10 to 40 kW, too complex and too expensive.
- gas heaters with a forced draft burner it has hitherto usually been sufficient in practice to switch on and off the forced draft burner in interval operation to increase the heat generation capacity of the burner combustion.
- B. adapt climate-related heat demand.
- this single-stage power control has several disadvantages.
- the invention has set itself the task of creating a simple and inexpensive actuator, with which a premixing forced draft burner can be operated and regulated in two stages by simultaneous adjustment of air and fuel gas with the mixing ratio being as constant as possible.
- the conventional hole mixer is supplemented with simple and inexpensive means to form an actuator with which the burner firing can be reduced from full load operation to a predetermined part load operation in the event of a lower heat requirement, in order to thereby switch on and switch off operations disadvantageous in the interval operation of the single-stage power control Reduce frequency and extend the duration of the switch-on phases compared to the duration of the switch-off phases.
- the line pressure with which the gas normally flows to a gas forced-air burner is considerably higher than the air pressure usually generated by the fan of the forced-air burner, and is therefore achieved with the design of the actuator according to the invention that the pressure in the partial load position of the Actuating throttling of the emerging mixture amount, which due to the different ratios in the air supply and in the fuel gas supply mainly affects the amount of air flowing into the chamber, does not lead to a deterioration of the desired mixing ratio of air and gas, but that through a suitable calibration of the Gas nozzle bore and by simultaneously shutting off the additional gas quantity outlet of the gas nozzle in the partial load position of the actuator, the amount of gas flowing into the chamber is reduced so that a mixture with the desired is also in the partial load position s, e.g. B. compared to the full load essentially unchanged mixing ratio.
- the actuator is formed by a so-called hole mixer, which is connected upstream of a forced draft burner (not shown) and contains a chamber 1, into which an air supply 2 and a fuel gas supply 3 open. A mixture of the combustion air flowing in to the chamber 1 and the fuel gas flowing in through normal line pressure takes place in the chamber 1.
- the chamber 1 has a chamber wall 4 which is formed with a plurality of mixing holes 5 arranged in a circle. The mixing holes 5 bring about an intimate mixing of the gas-air mixture formed in the chamber 1 and lead this mixture, which is premixed more than stoichiometrically with a predetermined excess air ratio, to the mixture outlet of the mixer or to the burner head of the gas-blown burner.
- the confluence of the fuel gas supply 3 is formed by a gas nozzle 6, which has a plurality of nozzle bores 7, which continuously open into the chamber 1.
- the gas nozzle 6 has an additional gas quantity outlet 8.
- the chamber 1 contains a throttle element 9, which is designed as a disk and is adjustable relative to the perforated chamber wall 4, namely by raising and lowering it in a cylinder-like part of the chamber 1.
- the throttle disk 9 has throttle openings 10 which are smaller in cross section than the mixing holes 5 of the chamber wall 4. In the raised full load position, the throttle disc 9 releases the mixing holes 5 of the chamber wall 4. In the partial load position placed on the chamber wall 4, the throttle disc 9 closes the cross section of the mixing holes 5 except for the smaller cross section of their throttle openings 10.
- the throttle disc 9 additionally has a larger central opening 11 through which the gas nozzle 6 protrudes through, or between the throttle openings 10 lying openings 12. These additional passage openings 11 and 12 are closed in the partial load position of the throttle disk 9 placed on the chamber wall 4 from closed areas of the chamber wall 4 lying outside the mixing holes 5.
- the throttle disc 9 is raised to the full load position in a simple manner by switching on an electric solenoid 13, the throttle disc 9 is lowered to the partial load position for the two-stage power control of the gas blower burner when the solenoid 13 is switched off by the force of a compression spring 14
- Throttle disk 9 is coupled to a plunger 14 which can be raised and lowered together with the throttle disk 9 and which cooperates with the gas nozzle 6 as a shut-off device.
- the additional gas volume outlet 8 of the gas nozzle 6 which is open in the raised full load position of the throttle disc 9 and together with the nozzle bores 7 allows a gas quantity to emerge which, with the air flowing into the chamber 1, gives the mixture with the desired mixing ratio, is applied to the chamber wall 4 attached partial load position of the throttle disc 9 closed by the stamp 14.
- a throttled gas quantity can only flow into the chamber 1 through the nozzle bores 7.
- the throttled gas quantity flowing into the chamber 1 in the partial load position of the throttle disc 9 results in the reduced amount of air which, in the partial load position of the throttle disc 9, is only fan-assisted by the air supply 2 due to the throttled mixture outlet from the chamber 1 flows into chamber 1, again a mixture with the desired mixing ratio.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Gas Burners (AREA)
- Feeding And Controlling Fuel (AREA)
- Control Of Combustion (AREA)
- Regulation And Control Of Combustion (AREA)
Abstract
Description
Die Erfindung betrifft ein Stellorgan für die zweistufige Leistungsregelung von Gas-Gebläsebrennern, wobei dem Brenner ein Mischer mit einer Kammer vorgeschaltet ist, in die eine Luftzufuhr und eine Brenngaszufuhr zur Gemischbildung in der Kammer einmünden und von der mehrere Mischlöcher in einer als Lochmischer ausgebildeten Kammerwand zum Gemischaustritt des Mischers führen.The invention relates to an actuator for the two-stage power control of gas forced draft burners, the burner being preceded by a mixer with a chamber into which an air supply and a fuel gas supply for mixture formation open in the chamber and from which several mixing holes in a chamber wall designed as a hole mixer Guide the mixture to the mixer.
Beispielsweise für leistungsstärkere Gasheizkessel von Gebäude-Warmwasserheizungsanlagen werden Gebläsebrenner angewendet, bei denen zum Unterschied von atmosphärischen Gasbrennern, deren mit einem Stellglied in der Gaszufuhr regelbare Flamme in einem zur Umgebung des Gasheizgerätes offenen Verbrennungsraum gebildet wird und sich die Verbrennungsluft von selbst aus der Umgebung des Gasheizgerätes ansaugt, die Verbrennung in einer geschlossenen Brennkammer stattfindet und die für die Verbrennung benötigte Verbrennungsluft gebläseunterstützt gefördert und der Flammenbildung zugeführt wird. Hierfür sind vormischende Gebläsebrenner bekannt, bei denen die von dem Brennergebläse geförderte Verbrennungsluft vor der Flammenbildung mit dem Gas zusammengeführt und vermischt wird. Beispielsweise aus der DE-OS 35 26 608 oder der DE-OS 36 11 909 sind Regelvorrichtungen bekannt, mit denen durch Veränderung eines Luftregelquerschnitts und eines Gasregelquerschnitts die Menge wie auch das Mischungsverhältnis eines aus der Regelvorrichtung weiterströmenden Gemisches aus Gas und Luft modulierend geregelt werden kann. Derartige Regelvorrichtungen sind für Gasheizkessel von gewöhnlichen Gebäudezentralheizungsanlagen, deren Nennwärmeleistung nur etwa im Bereich von 10 bis 40 kW liegt, zu aufwendig und zu kostspielig. Bei solchen oder ähnlichen Gasheizgeräten mit einem Gebläsebrenner hat man sich bisher in der Praxis meist damit begnügt, durch Einschalten und Ausschalten des Gebläsebrenners im Intervallbetrieb die Wärmeerzeugungsleistung der Brennerfeuerung dem z. B. klimabedingten Wärmebedarf anzupassen. Diese einstufige Leistungsregelung hat allerdings verschiedene Nachteile. In den Abschaltphasen des Intervallbetriebes, die meistenteils länger sind als die Einschaltphasen, entstehen die Bereitschaftsverluste. Es kommt zu einer Abkühlung der von der Brennerfeuerung beaufschlagten, bei einem Heizkessel für Zentralheizungsanlagen wassergekühlten Kesselheizflächen, und bei den häufigen Einschaltvorgängen des Intervallbetriebes kommen die Heizgase der Brennerfeuerung mit abgekühlten Kesselheizflächen in Berührung und können nachteilige Kondensationserscheinungen an den Kesselheizflächen vorkommen. Ungünstig beim Intervallbetrieb ist weiterhin, daß gerade bei dem häufigen Einschalten bzw. Anfahren der Brennerfeuerung die Schadstoffemission in den Abgasen der Brennerfeuerung größer ist als beim Dauerbetrieb der Brennerfeuerung.For example, for more powerful gas boilers of domestic hot water heating systems, fan burners are used, in which, in contrast to atmospheric gas burners, whose flame that can be regulated with an actuator in the gas supply is formed in a combustion chamber that is open to the surroundings of the gas heater and the combustion air is generated automatically from the surroundings of the gas heater sucked in, the combustion takes place in a closed combustion chamber and the combustion air required for the combustion is blower-assisted and fed to the formation of flames. Premixed forced draft burners are known for this purpose, in which the combustion air conveyed by the burner fan is combined with the gas and mixed before the flame is formed. For example, from DE-OS 35 26 608 or DE-OS 36 11 909 control devices are known with which the amount and also the mixing ratio of a mixture of gas and air flowing from the control device can be modulated by changing an air control cross section and a gas control cross section . Such control devices are for gas boilers of ordinary building central heating systems, the nominal heat output is only in the range of 10 to 40 kW, too complex and too expensive. In such or similar gas heaters with a forced draft burner, it has hitherto usually been sufficient in practice to switch on and off the forced draft burner in interval operation to increase the heat generation capacity of the burner combustion. B. adapt climate-related heat demand. However, this single-stage power control has several disadvantages. In the switch-off phases of interval operation, which are mostly longer than the switch-on phases, the readiness losses arise. The boiler heating surfaces acted upon by the burner firing, which are water-cooled in a boiler for central heating systems, cool down, and during the frequent switching on of the interval operation, the heating gases of the burner firing system come into contact with cooled boiler heating surfaces and there may be adverse condensation on the boiler heating surfaces. It is also unfavorable for interval operation that the pollutant emission in the exhaust gases of the burner burner is greater than when the burner burner is in continuous operation, especially when the burner burner is frequently switched on or started up.
Die Erfindung hat sich zur Aufgabe gestellt, ein möglichst einfaches und preisgünstiges Stellorgan zu schaffen, mit dem durch eine gleichzeitige Verstellung von Luft und Brenngas bei möglichst gleichbleibendem Mischungsverhältnis ein vormischender Gebläsebrenner zweistufig in seiner Leistung betrieben und geregelt werden kann.The invention has set itself the task of creating a simple and inexpensive actuator, with which a premixing forced draft burner can be operated and regulated in two stages by simultaneous adjustment of air and fuel gas with the mixing ratio being as constant as possible.
Ausgehend von einem in der einleitenden Gattungsbezeichnung erwähnten sogenannten Lochmischer, wie er z. B. in dem DE-GM 86 05 654 beschrieben wird, wird diese Aufgabe erfindungsgemäß durch ein mit den kennzeichnenden Merkmalen des Anspruchs 1 ausgebildetes Stellorgan gelöst.Starting from a so-called hole mixer mentioned in the introductory generic designation, as he z. B. is described in DE-GM 86 05 654, this object is achieved according to the invention by an actuator designed with the characterizing features of
Auf diese Weise wird der herkömmliche Lochmischer mit einfachen und billigen Mitteln zu einem Stellorgan ergänzt, mit dem bei einem niedrigeren Wärmebedarf die Brennerfeuerung von Vollastbetrieb auf einen vorbestimmten Teillastbetrieb zurückgefahren werden kann, um dadurch die beim Intervallbetrieb der einstufigen Leistungsregelung nachteiligen Einschalt- und Ausschaltvorgänge in der Häufigkeit zu verringern und die Dauer der Einschaltphasen gegenüber der Dauer der Ausschaltphasen zu verlängern. Durch eine einfache Veränderung der den Mischer zum Gebläsebrenner verlassenden Gemischmenge wird eine gemeinsame Verstellung der gebläseunterstützt dem Mischer zugeführten Luft und des mit üblichem Leitungsdruck dem Mischer zuströmenden Gases bewirkt und auf einfachste Weise eine zweistufige Leistungsregelung des Gebläsebrenners ermöglicht. Hierbei wird berücksichtigt, daß der Leitungsdruck, mit dem das Gas normalerweise einem Gas-Gebläsebrenner zuströmt, erheblich höher ist als der von dem Gebläse des Gebläsebrenners üblicherweise erzeugte Luftdruck, und wird also mit der erfindungsgemäßen Ausbildung des Stellorgans erreicht, daß die in der Teillaststellung des Stellorgans stattfindende Drosselung der austretenden Gemischmenge, die sich wegen der unterschiedlichen Verhältnisse in der Luftzufuhr und in der Brenngaszufuhr hauptsächlich auf die in die Kammer einströmende Luftmenge auswirkt, nicht zu einer Verschlechterung des gewünschten Mischungsverhältnisses von Luft und Gas führt, sondern daß durch eine geeignete Kalibrierung der Gasdüsenbohrung und durch die in der Teillaststellung des Stellorgans gleichzeitig erfolgende Absperrung des Zusatzgasmengenaustrittes der Gasdüse auch die in die Kammer einströmende Gasmenge so reduziert wird, daß auch in der Teillaststellung ein Gemisch mit dem gewünschten, z. B. gegenüber der Vollaststellung im wesentlichen unveränderten Mischungsverhältnis entsteht.In this way, the conventional hole mixer is supplemented with simple and inexpensive means to form an actuator with which the burner firing can be reduced from full load operation to a predetermined part load operation in the event of a lower heat requirement, in order to thereby switch on and switch off operations disadvantageous in the interval operation of the single-stage power control Reduce frequency and extend the duration of the switch-on phases compared to the duration of the switch-off phases. By simply changing the amount of mixture leaving the mixer to the forced draft burner, a common adjustment of the fan-assisted air supplied to the mixer and the gas flowing to the mixer with the usual line pressure is effected, and a two-stage capacity control of the forced draft burner is made possible in the simplest way. It is taken into account that the line pressure with which the gas normally flows to a gas forced-air burner is considerably higher than the air pressure usually generated by the fan of the forced-air burner, and is therefore achieved with the design of the actuator according to the invention that the pressure in the partial load position of the Actuating throttling of the emerging mixture amount, which due to the different ratios in the air supply and in the fuel gas supply mainly affects the amount of air flowing into the chamber, does not lead to a deterioration of the desired mixing ratio of air and gas, but that through a suitable calibration of the Gas nozzle bore and by simultaneously shutting off the additional gas quantity outlet of the gas nozzle in the partial load position of the actuator, the amount of gas flowing into the chamber is reduced so that a mixture with the desired is also in the partial load position s, e.g. B. compared to the full load essentially unchanged mixing ratio.
In der Zeichnung ist ein bevorzugtes Ausführungsbeispiel des erfindungsgemäßen Stellorgans dargestellt.In the drawing, a preferred embodiment of the actuator according to the invention is shown.
Das Stellorgan wird von einem sogenannten Lochmischer gebildet, der einem nicht dargestellten Gebläsebrenner vorgeschaltet ist und eine Kammer 1 enthält, in die eine Luftzufuhr 2 und eine Brenngaszufuhr 3 einmünden. In der Kammer 1 findet eine Gemischbildung der gebläseunterstützt der Kammer 1 zuströmenden Verbrennungsluft und des durch üblichen Leitungsdruck zuströmenden Brenngases statt. Die Kammer 1 besitzt eine Kammerwand 4, die mit einer Mehrzahl von kreisförmig angeordneten Mischlöchern 5 ausgebildet ist. Die Mischlöcher 5 bewirken eine innige Durchmischung des in der Kammer 1 entstehenden Gas-Luft-Gemisches und führen dieses mit vorbestimmter Luftüberschußzahl überstöchiometrisch vorgemischte Gemisch zum Gemischaustritt des Mischers bzw. zum Brennerkopf des Gas-Gebläsebrenners. Die Einmündung der Brenngaszufuhr 3 ist von einer Gasdüse 6 gebildet, die mehrere Düsenbohrungen 7 besitzt, die ständig in die Kammer 1 offen ausmünden. Zusätzlich besitzt die Gasdüse 6 einen Zusatzgasmengenaustritt 8. Die Kammer 1 enthält ein als Scheibe ausgebildetes Drosselorgan 9, das gegenüber der gelochten Kammerwand 4 verstellbar ist, und zwar durch kolbenartiges Anheben und Absenken in einem zylinderartigen Teil der Kammer 1. Die Drosselscheibe 9 besitzt Drosselöffnungen 10, die im Querschnitt kleiner sind als die Mischlöcher 5 der Kammerwand 4. In der angehobenen Vollaststellung gibt die Drosselscheibe 9 die Mischlöcher 5 der Kammerwand 4 frei. In der auf die Kammerwand 4 aufgesetzten Teillaststellung verschließt die Drosselscheibe 9 den Querschnitt der Mischlöcher 5 bis auf den kleineren Querschnitt ihrer Drosselöffnungen 10. Zur Vermeidung eines unnötigen Drosseleffektes in der angehobenen Vollaststellung besitzt die Drosselscheibe 9 zusätzlich eine größere Mittelöffnung 11, durch die die Gasdüse 6 hindurchragt, oder auch noch zwischen den Drosselöffnungen 10 liegende Öffnungen 12. Diese zusätzliche Durchlaßöffnungen 11 und 12 werden in der auf die Kammerwand 4 aufgesetzten Teillaststellung der Drosselscheibe 9 von außerhalb der Mischlöcher 5 liegenden geschlossenen Bereichen der Kammerwand 4 verschlossen. Das Anheben der Drosselscheibe 9 in die Vollaststellung erfolgt in einfacher Weise durch Einschalten eines elektrischen Hubmagneten 13, das Absenken der Drosselscheibe 9 in die Teillaststellung für die zweistufige Leistungsregelung des Gas-Gebläsebrenners erfolgt beim Ausschalten des Hubmagneten 13 durch die Kraft einer Druckfeder 14. Mit der Drosselscheibe 9 ist ein Stempel 14 gekuppelt, der zusammen mit der Drosselscheibe 9 anhebbar und absenkbar ist und als Absperrorgan mit der Gasdüse 6 zusammenwirkt. Der Zusatzgasmengenaustritt 8 der Gasdüse 6 der in der angehobenen Vollaststellung der Drosselscheibe 9 offen ist und zusammen mit den Düsenbohrungen 7 eine Gasmenge austreten läßt, die mit der in die Kammer 1 einströmenden Luft das Gemisch mit dem gewünschten Mischungsverhältnis ergibt, wird in der auf die Kammerwand 4 aufgesetzten Teillaststellung der Drosselscheibe 9 durch den Stempel 14 verschlossen. Dadurch kann von dem Gas, dessen Strömungsdruck in der Gaszufuhr 3 in der Praxis üblicherweise größer ist als der Luftdruck des Gebläsebrenners in der Luftzufuhr 2, nur durch die Düsenbohrungen 7 eine gedrosselte Gasmenge in die Kammer 1 einströmen. Bei entsprechender Kalibrierung der Düsenauslässe 7 und 8 ergibt die in der Teillaststellung der Drosselscheibe 9 in die Kammer 1 einströmende gedrosselte Gasmenge mit derjenigen reduzierten Luftmenge, die bei der Teillaststellung der Drosselscheibe 9 infolge des gedrosselten Gemischaustrittes aus der Kammer 1 nur noch gebläseunterstützt durch die Luftzufuhr 2 in die Kammer 1 einströmt, wieder ein Gemisch mit dem gewünschten Mischungsverhältnis.The actuator is formed by a so-called hole mixer, which is connected upstream of a forced draft burner (not shown) and contains a
Claims (3)
- Actuator for the two-stage power regulation of a gas power burner wherein upstream of the burner a mixer with a chamber (1) is arranged, in which an air supply line (2) and a fuel gas supply line (3) for forming a mixture in the chamber terminate and from which several mixing orifices (5) in a chamber wall (4) designed as a perforated mixer lead to allow the exit of the mixture from the mixer, characterised in that the chamber (1) contains a flow constrictor (9) adjustable in relation to the perforated chamber wall (4), said flow constrictor (9) being adjustable from a full-load position opening the mixing orifices (5) to a partial-load position in which the mixing orifices (5) are partly covered by the flow constrictor (9) leaving a smaller passage of predetermined size, that furthermore the termination of the fuel gas supply line (3) in the chamber (1) is formed by a gas injector (6) which features, in addition to an outlet (7) which is open when the flow constrictor is in the full-load and partial-load positions, an outlet for supplemental gas (8), and that the flow constrictor (9) is coupled with a shut-off device (14) which can be adjusted together with the flow constrictor and which closes the outlet for supplemental gas (8) of the gas injector (6) when the flow constrictor (9) is in the partial-load position.
- Actuator according to claim 1 characterised in that the flow constrictor (9) comprises a disk provided with flow constricting orifices (10), which, by means of an actuator drive, preferably by means of an electric lifting magnet (13) which can be switched on and off, can be set down on the chamber wall from a position in which it is raised from the perforated chamber wall (4) thereby partially closing the mixing orifices (5) with the flow constricting orifices (10) which are smaller in diameter than the mixing orifices (5) of the chamber wall (4), and that the gas injector (6) features an outlet for supplemental gas (8) pointing in the lifting direction of the disk (9) and a ram (14) is connected to the disk (9), said ram sealing the outlet for supplemental gas (8) of the gas injector when the disk (9) is positioned on the chamber wall (4).
- Actuator according to claim 2, characterised in that the disk (9) can be adjusted like a piston in the cylinder-like chamber (1) and features passage orifices (11, 12) in addition to the flow constricting orifices (10), said passage orifices (11, 12) being closed off from the closed areas of the chamber wall lying outside the mixing orifices (5) when the disk (9) is positioned on the chamber wall (4).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4101260A DE4101260A1 (en) | 1991-01-17 | 1991-01-17 | ACTUATOR FOR THE TWO-STAGE POWER CONTROL OF GAS BLOWING BURNERS |
| DE4101260 | 1991-01-17 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0495358A2 EP0495358A2 (en) | 1992-07-22 |
| EP0495358A3 EP0495358A3 (en) | 1993-01-27 |
| EP0495358B1 true EP0495358B1 (en) | 1995-03-01 |
Family
ID=6423199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP92100080A Expired - Lifetime EP0495358B1 (en) | 1991-01-17 | 1992-01-04 | Actuator for the two-stage power regulation of a gas power burner |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0495358B1 (en) |
| AT (1) | ATE119262T1 (en) |
| DE (2) | DE4101260A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2002306234B2 (en) * | 2002-04-30 | 2008-03-06 | Sit La Precisa S.P.A. | An air-gas mixer device, particulary for gas burners and similar apparatus |
| ITAN20150060A1 (en) * | 2015-05-13 | 2016-11-13 | Tre P Eng S R L | VALVE FOR PREMIX BURNERS |
| CN114234189B (en) * | 2022-01-05 | 2022-07-05 | 北京富士特锅炉有限公司 | Rear premixing wall type laminar flow water cooling ultra-low nitrogen combustion device and control method thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2253239A1 (en) * | 1972-10-30 | 1974-05-02 | Junkers & Co | GAS HEATED APPLIANCE, IN PARTICULAR WATER HEATERS |
| DE8605654U1 (en) * | 1986-03-01 | 1987-07-02 | Ruhrgas Ag, 4300 Essen | Burners for gaseous fuels |
| NL8702191A (en) * | 1987-09-15 | 1989-04-03 | Flameco Eclipse Bv | GAS BURNER. |
-
1991
- 1991-01-17 DE DE4101260A patent/DE4101260A1/en not_active Withdrawn
-
1992
- 1992-01-04 AT AT92100080T patent/ATE119262T1/en not_active IP Right Cessation
- 1992-01-04 EP EP92100080A patent/EP0495358B1/en not_active Expired - Lifetime
- 1992-01-04 DE DE59201476T patent/DE59201476D1/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| DE59201476D1 (en) | 1995-04-06 |
| DE4101260A1 (en) | 1992-07-23 |
| EP0495358A3 (en) | 1993-01-27 |
| ATE119262T1 (en) | 1995-03-15 |
| EP0495358A2 (en) | 1992-07-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE60019249T2 (en) | Gas burner with flame stabilization channel | |
| DE4326945A1 (en) | Gas cooking device with gas radiation burners arranged under a continuous cooking surface made of a material which is permeable to heat radiation, such as glass ceramic | |
| EP0062855B1 (en) | Control device for a gas-fired water or air heater | |
| EP2708814A1 (en) | Radiant burner | |
| DE69314153T2 (en) | Gas burning device with an atmospheric burner and method for regulating the air in the device | |
| EP0495358B1 (en) | Actuator for the two-stage power regulation of a gas power burner | |
| DE102021110061A1 (en) | Arrangement for reducing the consequences of a flashback in a premix burner of a heating device | |
| EP0062856B1 (en) | Control device for a gas-heated boiler of a warm-water heating installation | |
| DE10045642A1 (en) | Gas-operated real-flame fire especially for living rooms has flame monitor monitoring blue (non-illuminating) ignition flame and main burner which burns with illuminating flame | |
| EP0926437B1 (en) | Gas burner arrangement for cooking hobs | |
| EP0643264A1 (en) | Method for controlling the flame quality of a atmospheric gas burner and gas burner for carrying out this method | |
| DE19539869A1 (en) | Gas burner with modulating solenoid valve | |
| AT395764B (en) | Premixing gas burner | |
| DE3826279C2 (en) | Gas burner with a burner chamber | |
| EP0866270B1 (en) | Gas-fired heating apparatus, especially a water heater | |
| DE4411593A1 (en) | Burner with venturi duct | |
| DE2737902C2 (en) | ||
| DE9017295U1 (en) | Premix gas burner | |
| DE4237719C2 (en) | Atmospheric gas burner | |
| EP2567154B1 (en) | Gas regulating fitting | |
| DE4329195A1 (en) | Gas heating appliance and method for its operation | |
| DE9419947U1 (en) | Heating device | |
| EP0916895B1 (en) | Method for controlling an atmospheric gas burner for heaters, especially for water heaters | |
| DE19807239C2 (en) | Injector | |
| DE19601581A1 (en) | Method of operating blower burner for heater |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE CH DE FR GB IT LI LU NL |
|
| PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
| AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): AT BE CH DE FR GB IT LI LU NL |
|
| 17P | Request for examination filed |
Effective date: 19930522 |
|
| 17Q | First examination report despatched |
Effective date: 19940714 |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE CH DE FR GB IT LI LU NL |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Effective date: 19950301 Ref country code: IT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED. Effective date: 19950301 Ref country code: NL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 19950301 Ref country code: GB Effective date: 19950301 Ref country code: BE Effective date: 19950301 |
|
| REF | Corresponds to: |
Ref document number: 119262 Country of ref document: AT Date of ref document: 19950315 Kind code of ref document: T |
|
| REF | Corresponds to: |
Ref document number: 59201476 Country of ref document: DE Date of ref document: 19950406 |
|
| EN | Fr: translation not filed | ||
| NLV1 | Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act | ||
| GBV | Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed] |
Effective date: 19950301 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AT Effective date: 19960104 |
|
| PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CH Effective date: 19960131 Ref country code: LI Effective date: 19960131 Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19960131 |
|
| 26N | No opposition filed | ||
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Effective date: 19961001 |