EP1482245A1 - Vorrichtung zum Regeln des Gas/Luft-Verhältnisses für eine vormischende Verbrennungseinrichtung - Google Patents
Vorrichtung zum Regeln des Gas/Luft-Verhältnisses für eine vormischende Verbrennungseinrichtung Download PDFInfo
- Publication number
- EP1482245A1 EP1482245A1 EP03024295A EP03024295A EP1482245A1 EP 1482245 A1 EP1482245 A1 EP 1482245A1 EP 03024295 A EP03024295 A EP 03024295A EP 03024295 A EP03024295 A EP 03024295A EP 1482245 A1 EP1482245 A1 EP 1482245A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- air
- nozzle
- cone
- gas
- mixing chamber
- 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
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Classifications
-
- 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
- F23N1/027—Regulating fuel supply conjointly with air supply using mechanical means
-
- 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
- F23D14/64—Mixing devices; Mixing tubes with injectors
Definitions
- the invention relates to a device for regulating the Gas / air ratio for a premixing combustion device.
- the volume flow of the gas in a constant ratio to the volume flow held in the air. This is done by means of a pressure-controlled Regulator in the gas way. This is a pressure difference used as control pressure for regulating the gas volume flow, and in direct relation to the sucked Volume flow of the air.
- the control pressure for the controller is in a mixing device or at a diaphragm in the airway generated.
- the systems with pneumatic composite do not need any electrical or electronic components. Your mechanical Construction is very simple and works very fast. there they only need a few moving parts.
- the mixture preparation with pneumatic composite has the advantage, very much fast on pressure and volume flow fluctuations in the incinerator to react and the gas / air ratio in keep a large modulation range constant. Thereby These robust systems have proven themselves on many systems.
- Influencing factors such as gas quality, air pressure and combustion air temperature
- these systems can not be adjusted and require a readjustment to the Systems. Due to the liberalization of the gas market is larger Fluctuations in gas quality to be expected in these Systems require constant readjustment.
- the invention is based on the object in a system with pneumatic composite without abandoning the achieved there Advantages the advantages of systems with electronic To realize a composite.
- the regulator provides the pneumatic interconnection of the system and the sensor provides the signal that compensates the variations of the gas quality, the atmospheric pressure and the Combustion air temperature allows. In dependence of this signal is preferably adjusted by a Linear motor actuated cones and moves it more or less deep into the nozzle connected to the air line into it. Thus, can be ensured in an extremely simple manner be that the combustion device always with optimal Gas / air ratio works.
- the sensor can be the composition and / or the temperature capture the combustion gases, and the electronics From this, the forthcoming values of the gas quality, the Air pressure and the combustion air temperature determine, so that an appropriate regulation on the adjustment of the Cone is made possible. By that way changed Pressure and flow conditions in the Venturidüsenartig extended mixing chamber, it is possible the gas / air ratio in a wide range without changing to forego the advantages of the pneumatic composite.
- the degree of modulation is increased, so that inaccuracies even at low power regulated can be.
- the cone In case of failure of the sensor, the cone is completely off the nozzle connected to the air duct is moved out.
- the minimum power of the combustion device is so far raised that combustion in one operating area is not necessarily the engagement of the sensor requires. For example, the minimum power to approx. 20% raised.
- the basic setting of the pneumatic regulator that with the expected gas types, Air temperatures and altitudes a sufficiently high air surplus is complied with. In this position of the cone corresponds the scheme a conventional pneumatic Composite.
- the incinerator does not need to be shut down and pollutant emissions remain below the prescribed levels Limits.
- Previously known systems with electronic Composite must be turned off when selecting the sensor become.
- Fluctuations in gas quality, air pressure and Combustion air temperature can be regulated without going on the advantages of the pneumatic composite, namely the quick response to changes in performance and Pressure fluctuations, to dispense.
- the combustion device works even in case of failure of the sensor, since the pneumatic composite on which the Scheme is set up, remains functional.
- a scheme with pneumatic composite which is a venturi-like extended mixing chamber may also subsequently equipped with a sensor-controlled cone become.
- the degree of modulation is increased by a smaller minimum power can be adjusted.
- pure pneumatic composite is at such a low power does not ensure sufficient stability of the gas / air ratio.
- the incinerator can work with other incinerators to a common, working with overpressure Exhaust system can be completed without the risk that at standstill of the combustion device exhaust flows back into their room, since the cone the Can completely close the air line.
- the opening angle corresponds to the the air duct connected to the nozzle essentially the Angle of the cone. This contributes to the fact that to the Air line connected nozzle from the cone completely is closable, as in the invention is provided.
- the cone at an angle of less than 30 ° Provided. This angle allows a very sensitive Adjustment of the cone and thus a very sensitive Regulation. Under certain circumstances, however, are also cones with a Angle of more than 30 ° possible.
- the device of Figure 1 has a gas line 1 and an air line 2 on. Between the two lines works a pneumatic regulator 3, which controls the pressure in the gas line 1 as a function of the pressure in the air line 2 controls.
- the gas line 1 and the air line 2 open together in a mixing device 4. Downstream of the mixing device 4 a speed-controllable fan 5 is arranged, which the mixture to a combustion device, not shown promotes.
- FIG. 2 shows in detail the construction of the mixing device 4, to which the blower 5 directly connected is.
- the latter is a speed-controllable motor. 6 driven.
- the mixing device 4 has a mixing chamber 7, the from its inlet opening in the direction of flow expanded like a venturi. In the entrance of the Mixing chamber 7 projects into a nozzle 8, which is connected to the air line 2 is connected. The nozzle 8 forms with the edge 9 the inlet opening of the mixing chamber 7 an annular gap 10, which is connected to the gas line 1.
- a cone 11 is arranged, the from a linear motor 12 in the axial direction relative to the nozzle 8 is adjustable.
- the cone 11 is not controlled by one represented sensor, which in the present case the composition the combustion exhaust gases detected. He delivers Signal representing the upcoming gas quality.
- the control operates in the opposite direction Direction.
- the cone 11 can be variations in air pressure and the Combustion air temperature can be compensated.
- the invention combines the advantages of a pneumatic Alliance with the advantages of an electronic network while simultaneously increasing the degree of modulation.
- the minimum power of the combustion device can without Stability loss can be lowered.
- the pneumatic controller 3 can the Control pressure for the control of the pressure in the gas line 1 also pick up at a location other than in the air line 2, For example, in the mixing chamber 7. Also, the linear motor 12 controlling sensor, for example, only the Combustion air temperature and / or the air pressure or the Record gas quality.
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
- einem pneumatischen Regler, der das Verhältnis zwischen dem Druck in einer Gasleitung und dem Druck in einer Luftleitung konstant hält,
- einer stromab des Reglers angeordneten Mischeinrichtung,
die folgende Merkmale aufweist:
- eine Mischkammer, die sich von ihrer Eintrittsöffnung aus in Strömungsrichtung venturidüsenartig erweitert,
- eine an die Luftleitung angeschlossene Düse, die in die Eintrittsöffnung der Mischkammer hineinragt,
- einen an die Gasleitung angeschlossenen Ringspalt, der zwischen dem Rand der Eintrittsöffnung der Mischkammer und der an die Luftleitung angeschlossenen Düse ausgebildet ist, und
- einen in der Luftleitung angeordneten Kegel, der in Abhängigkeit von einem Signal eines Sensors in Axialrichtung relativ zu der an die Luftleitung angeschlossenen Düse verstellbar ist,
- und mit einem drehzahlsteuerbaren Gebläse, das das Gemisch aus der Mischkammer zur Verbrennungseinrichtung fördert.
Claims (4)
- Vorrichtung zum Regeln des Gas/Luft-Verhaltnisses für eine vormischende Verbrennungseinrichtung, miteinem pneumatischen Regler (3), der das Verhältnis zwischen dem Druck in einer Gasleitung (1) und dem Druck in einer Luftleitung (2) konstant hält,einer stromab des Reglers (3) angeordneten Mischeinrichtung (4), die folgende Merkmale aufweist:eine Mischkammer (7), die sich von ihrer Eintrittsöffnung aus in Strömungsrichtung venturidüsenartig erweitert,eine an die Luftleitung (2) angeschlossene Düse (8), die in die Eintrittsöffnung der Mischkammer (7) hineinragt,einen an die Gasleitung (1) angeschlossenen Ringspalt (10), der zwischen dem Rand (9) der Eintrittsöffnung der Mischkammer (7) und der an die Luftleitung (2) angeschlossenen Düse (8) ausgebildet ist, undeinen in der Luftleitung (2) angeordneten Kegel (11), der in Abhängigkeit von einem Signal eines Sensors in Axialrichtung relativ zu der an die Luftleitung (2) angeschlossenen Düse (8) verstellbar ist,und mit einem drehzahlsteuerbaren Gebläse (5), das das Gemisch aus der Mischkammer (7) zur Verbrennungseinrichtung fördert.
- Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Kegel (11) von einem Linearmotor (12) betätigbar ist.
- Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Öffnungsquerschnitt der an die Luftleitung (2) angeschlossenen Düse (8) dem Querschnitt des Kegels (11) derart angepaßt ist, daß die Düse (8) mit dem Kegel (11) vollständig verschließbar ist.
- Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß der Winkel des Kegels (11) weniger als 30° beträgt.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SI200330256T SI1482245T1 (sl) | 2003-05-30 | 2003-10-23 | Naprava za regulacijo razmerja plin/zrak za predmeSalno zgorevalno napravo |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10324706A DE10324706B3 (de) | 2003-05-30 | 2003-05-30 | Vorrichtung zum Regeln des Gas/Luft-Verhältnisses für eine vormischende Verbrennungseinrichtung |
DE10324706 | 2003-05-30 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1482245A1 true EP1482245A1 (de) | 2004-12-01 |
EP1482245B1 EP1482245B1 (de) | 2006-02-22 |
Family
ID=33103666
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03024295A Expired - Lifetime EP1482245B1 (de) | 2003-05-30 | 2003-10-23 | Vorrichtung zum Regeln des Gas/Luft-Verhältnisses für eine vormischende Verbrennungseinrichtung |
Country Status (8)
Country | Link |
---|---|
US (1) | US6990964B2 (de) |
EP (1) | EP1482245B1 (de) |
AT (1) | ATE318393T1 (de) |
CA (1) | CA2464993C (de) |
DE (2) | DE10324706B3 (de) |
ES (1) | ES2258691T3 (de) |
PL (1) | PL202022B1 (de) |
SI (1) | SI1482245T1 (de) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITPD20090215A1 (it) * | 2009-07-22 | 2011-01-23 | Ln 2 Srl Socio Unico | Dispositivo miscelatore aria-gas, particolarmente per apparecchi bruciatori a pre-miscelazione. |
ITPD20110372A1 (it) * | 2011-11-24 | 2013-05-25 | Ln 2 Srl Socio Unico | Dispositivo miscelatore aria-gas per bruciatori a gas combustibile con pre-miscelazione |
CN103228989A (zh) * | 2010-11-26 | 2013-07-31 | 贝卡尔特燃烧技术股份有限公司 | 带有二次轴流元件的燃烧器 |
CN103917767A (zh) * | 2011-05-19 | 2014-07-09 | Mtu腓特烈港有限责任公司 | 气体混合器、气体混合***、气体发动机 |
DE102013220954A1 (de) * | 2013-10-16 | 2015-04-16 | Robert Bosch Gmbh | Heizgerät mit einem von einem Gebläse unterstützten Brenner |
WO2015187290A1 (en) * | 2014-06-04 | 2015-12-10 | Lochinvar, Llc | Modulating burner with venturi damper |
EP3203151A1 (de) * | 2016-02-03 | 2017-08-09 | Robert Bosch Gmbh | Brennstoff-luft-mischeinrichtung für ein heizgerät |
CN111895410A (zh) * | 2020-06-29 | 2020-11-06 | 欧保(中国)环境工程股份有限公司 | 矢量控制燃气低氮燃烧器 |
EP3064778B1 (de) * | 2015-03-06 | 2022-02-16 | ELICA S.p.A. | Radiallüfter mit luft-gas mischungsanordnung |
US11933250B2 (en) | 2020-07-28 | 2024-03-19 | Cummins Inc. | Gaseous fuel-air mixer with higher mixture uniformity |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
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EP2048439B1 (de) * | 2007-10-12 | 2014-06-18 | ebm-papst Landshut GmbH | Radialgebläse mit integriertem Regelventil |
CN101893238B (zh) * | 2010-07-29 | 2012-05-30 | 郑治原 | 陶瓷窑炉智能节能操控***及其控制方法 |
DE102011014117A1 (de) * | 2011-03-15 | 2012-09-20 | Ebm-Papst Landshut Gmbh | Mischvorrichtung zur Mischung von Verbrennungsluft und Gas für ein Gasgerät |
AR082603A1 (es) | 2011-08-09 | 2012-12-19 | Lavaque Oscar | Un dispositivo solubilizador de dioxido de carbono en una bebida, de presion variable |
DE102012003501A1 (de) * | 2012-01-31 | 2013-08-01 | Vaillant Gmbh | Brenngas-Luft-Mischvorrichtung |
US9222403B2 (en) * | 2013-02-07 | 2015-12-29 | Thrival Tech, LLC | Fuel treatment system and method |
DE102013101676B4 (de) * | 2013-02-20 | 2021-02-11 | Mhg Heiztechnik Gmbh | Gasluftmischbehälter und Gasbrenner |
WO2016172083A1 (en) * | 2015-04-20 | 2016-10-27 | Woodward, Inc. | Gas flow fuel metering |
CN107830520A (zh) * | 2017-09-27 | 2018-03-23 | 徐州工程学院 | 一种燃点燃烧器 |
CN108844068B (zh) * | 2018-09-03 | 2024-01-19 | 哈尔滨电气股份有限公司 | 一种全预混表面式燃烧器燃气空气掺混器 |
CN109821379B (zh) * | 2019-04-04 | 2021-11-19 | 南京国电环保科技有限公司 | 用于提高氨气分布均匀度的喷氨装置 |
CN212537829U (zh) * | 2020-06-24 | 2021-02-12 | 艾欧史密斯(中国)热水器有限公司 | 气体混合装置以及燃气热水装置 |
US11808453B2 (en) | 2020-06-24 | 2023-11-07 | A.O. Smith Corporation | Gas mixing device and gas water heating device |
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US2077424A (en) * | 1932-12-03 | 1937-04-20 | Nat Machine Works | Gas burner |
US4385887A (en) * | 1978-04-17 | 1983-05-31 | Matsushita Electric Industrial Co., Ltd. | Combustion control apparatus |
FR2654191A1 (fr) * | 1989-11-09 | 1991-05-10 | Rousseau Louis | Bruleur a debit reglable et a air induit ou pulse. |
DE19729047C1 (de) * | 1997-07-08 | 1998-09-24 | Honeywell Bv | Mischvorrichtung zur Erzeugung eines Gemisches aus Gas und Verbrennungsluft für einen Brenner |
DE19953984A1 (de) * | 1999-11-10 | 2001-05-17 | Buderus Heiztechnik Gmbh | Einrichtung zur Regelung des Gas-/Luft-Verhältnisses bei einem Gasbrenner |
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DK313182A (da) * | 1981-07-24 | 1983-01-25 | Hopt Gmbh Karl | Doseringsindretning til gasformige drivmidler |
JP3343632B2 (ja) * | 1993-12-03 | 2002-11-11 | 株式会社ニッキ | ガス・エンジン用混合器 |
US6050246A (en) * | 1997-01-23 | 2000-04-18 | Abdelmesih; Saad Abdalla | Method and device for converting conventional gas engines to operate on compressed natural gas |
US6016832A (en) * | 1997-04-16 | 2000-01-25 | Woodward Governor Company | Valve for controlling gas mass flow |
US6267105B1 (en) * | 1998-06-12 | 2001-07-31 | Bruno Bertossi | Electronic pressure reducer for liquid petroleum gasses |
DE19906935B4 (de) * | 1999-02-19 | 2006-03-23 | Robert Bosch Gmbh | Verfahren zum Betreiben eines Gasbrenners |
AR024718A1 (es) * | 2000-07-12 | 2002-10-23 | Ricardo Cayetano Algeri | Dispositivo mezclador de gas combustible con aire para motores de combustion interna |
DE10119598C2 (de) * | 2001-04-21 | 2003-10-02 | Bosch Gmbh Robert | Vorrichtung zum Mischen von Gas und Luft für ein Gasheizgerät |
-
2003
- 2003-05-30 DE DE10324706A patent/DE10324706B3/de not_active Expired - Fee Related
- 2003-10-23 AT AT03024295T patent/ATE318393T1/de active
- 2003-10-23 ES ES03024295T patent/ES2258691T3/es not_active Expired - Lifetime
- 2003-10-23 EP EP03024295A patent/EP1482245B1/de not_active Expired - Lifetime
- 2003-10-23 DE DE50302463T patent/DE50302463D1/de not_active Expired - Lifetime
- 2003-10-23 SI SI200330256T patent/SI1482245T1/sl unknown
-
2004
- 2004-04-16 CA CA002464993A patent/CA2464993C/en not_active Expired - Fee Related
- 2004-05-04 PL PL367655A patent/PL202022B1/pl unknown
- 2004-05-20 US US10/851,453 patent/US6990964B2/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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US2077424A (en) * | 1932-12-03 | 1937-04-20 | Nat Machine Works | Gas burner |
US4385887A (en) * | 1978-04-17 | 1983-05-31 | Matsushita Electric Industrial Co., Ltd. | Combustion control apparatus |
FR2654191A1 (fr) * | 1989-11-09 | 1991-05-10 | Rousseau Louis | Bruleur a debit reglable et a air induit ou pulse. |
DE19729047C1 (de) * | 1997-07-08 | 1998-09-24 | Honeywell Bv | Mischvorrichtung zur Erzeugung eines Gemisches aus Gas und Verbrennungsluft für einen Brenner |
DE19953984A1 (de) * | 1999-11-10 | 2001-05-17 | Buderus Heiztechnik Gmbh | Einrichtung zur Regelung des Gas-/Luft-Verhältnisses bei einem Gasbrenner |
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2278224A3 (de) * | 2009-07-22 | 2013-02-27 | LN 2 S.R.L. a socio unico | Gas-Luftmischer, insbesondere für Vormischbrenner |
ITPD20090215A1 (it) * | 2009-07-22 | 2011-01-23 | Ln 2 Srl Socio Unico | Dispositivo miscelatore aria-gas, particolarmente per apparecchi bruciatori a pre-miscelazione. |
CN103228989A (zh) * | 2010-11-26 | 2013-07-31 | 贝卡尔特燃烧技术股份有限公司 | 带有二次轴流元件的燃烧器 |
CN103917767B (zh) * | 2011-05-19 | 2016-12-07 | Mtu腓特烈港有限责任公司 | 气体混合器、气体混合***、气体发动机 |
CN103917767A (zh) * | 2011-05-19 | 2014-07-09 | Mtu腓特烈港有限责任公司 | 气体混合器、气体混合***、气体发动机 |
ITPD20110372A1 (it) * | 2011-11-24 | 2013-05-25 | Ln 2 Srl Socio Unico | Dispositivo miscelatore aria-gas per bruciatori a gas combustibile con pre-miscelazione |
EP2597369A1 (de) * | 2011-11-24 | 2013-05-29 | LN 2 S.R.L. a socio unico | Luft-Gas-Mischvorrichtung für Gasbrenner mit Vormischung |
DE102013220954A1 (de) * | 2013-10-16 | 2015-04-16 | Robert Bosch Gmbh | Heizgerät mit einem von einem Gebläse unterstützten Brenner |
CN106662323B (zh) * | 2014-06-04 | 2019-09-17 | 烈骑有限责任公司 | 具有文丘里管阻尼器的可调节燃烧器 |
CN106662323A (zh) * | 2014-06-04 | 2017-05-10 | 烈骑有限责任公司 | 具有文丘里管阻尼器的可调节燃烧器 |
US9746176B2 (en) | 2014-06-04 | 2017-08-29 | Lochinvar, Llc | Modulating burner with venturi damper |
US10161627B2 (en) | 2014-06-04 | 2018-12-25 | Lochinvar, Llc | Modulating burner with venturi damper |
WO2015187290A1 (en) * | 2014-06-04 | 2015-12-10 | Lochinvar, Llc | Modulating burner with venturi damper |
EP3064778B1 (de) * | 2015-03-06 | 2022-02-16 | ELICA S.p.A. | Radiallüfter mit luft-gas mischungsanordnung |
EP3203151A1 (de) * | 2016-02-03 | 2017-08-09 | Robert Bosch Gmbh | Brennstoff-luft-mischeinrichtung für ein heizgerät |
CN111895410A (zh) * | 2020-06-29 | 2020-11-06 | 欧保(中国)环境工程股份有限公司 | 矢量控制燃气低氮燃烧器 |
CN111895410B (zh) * | 2020-06-29 | 2022-02-01 | 欧保(中国)环境工程股份有限公司 | 矢量控制燃气低氮燃烧器 |
US11933250B2 (en) | 2020-07-28 | 2024-03-19 | Cummins Inc. | Gaseous fuel-air mixer with higher mixture uniformity |
Also Published As
Publication number | Publication date |
---|---|
PL367655A1 (en) | 2004-12-13 |
CA2464993C (en) | 2009-07-28 |
CA2464993A1 (en) | 2004-11-30 |
US6990964B2 (en) | 2006-01-31 |
ATE318393T1 (de) | 2006-03-15 |
DE10324706B3 (de) | 2004-12-02 |
PL202022B1 (pl) | 2009-05-29 |
ES2258691T3 (es) | 2006-09-01 |
DE50302463D1 (de) | 2006-04-27 |
EP1482245B1 (de) | 2006-02-22 |
SI1482245T1 (sl) | 2006-08-31 |
US20040237947A1 (en) | 2004-12-02 |
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