EP0896191B1 - Brenngas-Einleitungsvorrichtung für einen Gas-Vormischbrenner - Google Patents
Brenngas-Einleitungsvorrichtung für einen Gas-Vormischbrenner Download PDFInfo
- Publication number
- EP0896191B1 EP0896191B1 EP98112693A EP98112693A EP0896191B1 EP 0896191 B1 EP0896191 B1 EP 0896191B1 EP 98112693 A EP98112693 A EP 98112693A EP 98112693 A EP98112693 A EP 98112693A EP 0896191 B1 EP0896191 B1 EP 0896191B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- air
- swirl
- fuel gas
- inflow
- admission device
- 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
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L5/00—Blast-producing apparatus before the fire
Definitions
- the invention relates to a device for initiating Fuel gas in an air stream, especially for a gas premix burner, with an inflow chamber for the air, with a leading into the inflow chamber for the Fuel gas and with a (first) swirl generating device, by means of the air flowing through the inflow chamber Swirl is impressed, the inflow opening in the Axis of the (first) swirl generating device is arranged.
- Such a device is for example by DE 33 45 611 A1 has become known.
- Introductory devices are also known in which the fuel gas metering after a pressure loss Throttle point is aimed.
- the so-called “mechanical gas-air network” in order to change the performance, the flow cross-sections of air and fuel gas alike.
- the so-called “Pneumatic compound” is the pressure of one fluid the pressure loss at the throttle point changed to the to achieve the same mixing ratio.
- the so-called “Zero pressure control” is the pressure loss of the throttle point in the one fluid stream chosen approximately the same as the pressure loss of the throttle point in the other fluid flow, which makes the mixing ratio independent of the throughput becomes.
- the usable performance range is also here small because of precise pressure control with small pressure differences is very difficult.
- the present invention has the object based on an introductory device of the aforementioned Art in such a way that even better metering accuracy can be achieved.
- this object is achieved by a further one (Second) swirl generating device, which through the inflow opening flowing fuel gas or one through the inflow opening already flowing mixture of air and fuel gas imbues a twist.
- the further swirl generating device which by the inflow fuel gas flowing through the Inflow opening flowing mixture of air and fuel gas Swirl imprints can already be upstream of the inflow opening a swirl is imparted to the fuel gas or the mixture be the downstream swirl of air reinforced.
- This is preferably a further swirl generating device upstream of the inflow opening for generation of a swirl only in the air of through the Inflow opening flowing mixture arranged.
- the inflow opening is designed as a Venturi nozzle.
- Fuel gas Due to the swirl of the rotating air flow is in the Inflow center arranged for the center of the swirl Fuel gas generates a high negative pressure, which regulates the pressure of the fuel gas to be introduced is significantly simplified and thus increasing the metering accuracy. This can already with a low pressure drop in the air a precise, adjustable Mixing ratio with the fuel gas in one large performance range can be achieved.
- the generation of the Swirls in the air also have the advantage that the flow with changes of direction not so easily detachment shows and thereby space is saved can.
- the swirl generating device preferably has at least one, in particular several evenly distributed around its circumference swirl-generating guide vanes.
- Via adjustable Guide blades can also be the metering of Fuel gas or the mixing ratio between air and Influence fuel gas particularly easily.
- Swirl generating device designed as a cyclone. It turns out turns out to be advantageous, a larger amount of fuel gas to flow in the center of the cyclone to avoid flow losses to reduce.
- a radial fan is arranged downstream of the inflow chamber.
- the twist of the mixture flowing out of the inflow chamber can be used for inflow of the radial fan can be used advantageously.
- Counter-swirl flow can be a particularly high fan output can be achieved while a constant swirl flow particularly low-loss entry of the mixture into the radial fan is possible.
- FIG. 1 10 'shows an introduction device for a gas premix burner (not shown) in which air 11, 11' and fuel gas 12 are mixed together and then fed to the gas premix burner as a mixture 13 .
- the air 11 is sucked in via a peripheral opening 17 into an inflow chamber 18 via a radial fan 14 , which is driven by the motor 15 in the direction of rotation 16 .
- guide vanes 19 (FIG. 2) are arranged, which form a cyclone and which impart a swirl 20 to the air 11 flowing through the inflow chamber 18, as is also indicated by the flow arrows 21 in FIG. 2.
- an inflow opening 23 ' in the form of a Venturi nozzle 29 is provided, through which the fuel gas 12 and further air 11' are jointly introduced into the inflow chamber 18 in the direction of the axis of rotation 22.
- the air 11 ' is sucked in via the radial fan 14 via an air duct 31 and into the Venturi nozzle 29, the air 11' entraining the fuel gas 12 via a nozzle-shaped inflow opening 32 arranged in the region of the axis of rotation 22.
- a swirl 34 is impressed on the air 11 'upstream of the inflow opening 23' via guide plates 33 (FIG.
- the mixture 25 of air 11, 11 'and fuel gas 12 in the radial fan 14 flows radially outward into an outer flow channel 24 and then out via an outlet opening 26 in the direction of the gas premix burner.
- the swirl 35 and the direction of rotation 16 of the radial blower 14 are directed in the same direction, whereby a particularly low-loss entry of the mixture into the radial blower 14 is possible if the impeller 27 of the radial blower 14 is equipped with corresponding guide vanes 28 .
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Gas Burners (AREA)
- Regulation And Control Of Combustion (AREA)
- Feeding And Controlling Fuel (AREA)
Description
- Fig. 1
- eine schematische Darstellung eines Ausführungsbeispiels einer erfindungsgemäßen Einleitungsvorrichtung; und
- Fig. 2
- einen Querschnitt durch die Einleitungsvorrichtung der Fig. 1, dargestellt in drei unterschiedlichen Schnittsegmenten entsprechend A, B, C in Fig. 1.
- mit A1:
- Düsenquerschnitt für die Luft 11, der näherungsweise durch den Querschnitt in der Einströmkammer 18 und, falls vorhanden, durch den Austrittsquerschnitt der Venturidüse 19, abzüglich des Düsenquerschnitts für das Brenngas 12, multipliziert mit dem Flächenverhältnis der Venturidüse 19 gegeben ist,
- mit σ1:
- Dichte der Luft,
- mit p1:
- Eintrittsdruck der Luft 11, und
- mit pG:
- gemeinsamer Austrittsdruck von Luft 11 und Brenngas 12 vor dem Radialgebläse 14.
- mit A2:
- Düsenquerschnitt für das Brenngas 12,
- mit p2:
- Eintrittsdruck Brenngas, normalerweise gleich p1, und
- mit v:
- Gerätekonstante, z.B. 4, d.h., ein bestimmtes Druckgefälle am Düsenquerschnitt für die Luft 11 erzeugt das 4-fache Druckgefälle am Düsenquerschnitt für das Brenngas 12.
Claims (8)
- Einleitungsvorrichtung (10; 10') zum Einleiten von Brenngas (12) in einen Luftstrom, insbesondere für einen Gas-Vormischbrenner, mit einer Einströmkammer (18) für die Luft (11), mit einer in die Einströmkammer (18) führenden Einströmöffnung (23; 23') für das Brenngas (12) und mit einer ersten Drallerzeugungseinrichtung, mittels der der durch die Einströmkammer (18) strömenden Luft (11) ein Drall (20) aufgeprägt wird, wobei die Einströmöffnung (23; 23') in der Achse (22) der ersten Drallerzeugungseinrichtung (20) angeordnet ist,
gekennzeichnet durch eine weitere zweite Drallerzeugungseinrichtung, die dem durch die Einströmöffnung (23) strömenden Brenngas (12) bzw. einem durch die Einströmöffnung (23') strömenden Gemisch (30) aus Luft (11') und Brenngas (12) bereits einen Drall (34, 34') aufprägt. - Einleitungsvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die zweite Drallerzeugungseinrichtung stromaufwärts der Einströmöffnung (23') zur Erzeugung eines Dralls (34) in der Luft (11') des durch die Einströmöffnung (23') strömenden Gemisches (30) angeordnet ist.
- Einleitungsvorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Einströmöffnung (23') als Venturidüse (29) ausgebildet ist.
- Einleitungsvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die erste Drallerzeugungseinrichtung mindestens eine drallerzeugende Leitschaufel (19) aufweist.
- Einleitungsvorrichtung nach Anspruch 4, dadurch gekennzeichnet, daß die mindestens eine Leitschaufel (19) verstellbar ist.
- Einleitungsvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die erste Drallerzeugungseinrichtung als Zyklon ausgebildet ist.
- Einleitungsvorrichtung nach einem der vorhergehenden Ansprüche, gekennzeichnet durch ein stromabwärts der Einströmkammer (18) angeordnetes Radialgebläse (14).
- Einleitungsvorrichtung, gekennzeichnet dadurch eine Kaskadierung mehrerer Einleitungsvorrichtungen (10; 10') nach einem der vorhergehenden Ansprüche.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19733769 | 1997-08-05 | ||
DE19733769A DE19733769C2 (de) | 1997-08-05 | 1997-08-05 | Brenngas-Einleitungsvorrichtung für einen Gas-Vormischbrenner |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0896191A2 EP0896191A2 (de) | 1999-02-10 |
EP0896191A3 EP0896191A3 (de) | 1999-11-10 |
EP0896191B1 true EP0896191B1 (de) | 2001-02-14 |
Family
ID=7838003
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98112693A Expired - Lifetime EP0896191B1 (de) | 1997-08-05 | 1998-07-09 | Brenngas-Einleitungsvorrichtung für einen Gas-Vormischbrenner |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0896191B1 (de) |
AT (1) | ATE199180T1 (de) |
DE (2) | DE19733769C2 (de) |
ES (1) | ES2157103T3 (de) |
PT (1) | PT896191E (de) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8839815B2 (en) | 2011-12-15 | 2014-09-23 | Honeywell International Inc. | Gas valve with electronic cycle counter |
US8899264B2 (en) | 2011-12-15 | 2014-12-02 | Honeywell International Inc. | Gas valve with electronic proof of closure system |
US8905063B2 (en) | 2011-12-15 | 2014-12-09 | Honeywell International Inc. | Gas valve with fuel rate monitor |
US8947242B2 (en) | 2011-12-15 | 2015-02-03 | Honeywell International Inc. | Gas valve with valve leakage test |
US9074770B2 (en) | 2011-12-15 | 2015-07-07 | Honeywell International Inc. | Gas valve with electronic valve proving system |
US9234661B2 (en) | 2012-09-15 | 2016-01-12 | Honeywell International Inc. | Burner control system |
US9557059B2 (en) | 2011-12-15 | 2017-01-31 | Honeywell International Inc | Gas valve with communication link |
US9995486B2 (en) | 2011-12-15 | 2018-06-12 | Honeywell International Inc. | Gas valve with high/low gas pressure detection |
US10024439B2 (en) | 2013-12-16 | 2018-07-17 | Honeywell International Inc. | Valve over-travel mechanism |
US10215291B2 (en) | 2013-10-29 | 2019-02-26 | Honeywell International Inc. | Regulating device |
USD960321S1 (en) | 2019-06-11 | 2022-08-09 | Karl Dungs Gmbh & Co. Kg | Venturi signal amplifier |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1315743B1 (it) * | 2000-10-03 | 2003-03-18 | Sit La Precisa Spa | Dispositivo miscelatore aria-gas perfezionato. |
ITPD20010023A1 (it) * | 2001-02-01 | 2002-08-01 | Sit La Precisa Spa | Dispositivo miscelatore aria-gas perfezionato. |
AT412667B (de) * | 2003-01-27 | 2005-05-25 | Vaillant Gmbh | Mischvorrichtung für brenngas und luft |
DE102004054796B3 (de) | 2004-11-12 | 2006-03-16 | Robert Bosch Gmbh | Mischeinrichtung für einen Gas-Vormischbrenner |
DE102007008460A1 (de) * | 2007-02-19 | 2008-08-21 | Viessmann Werke Gmbh & Co Kg | Mischeinrichtung für einen Gasgebläsebrenner |
ITPD20080006A1 (it) | 2008-01-08 | 2009-07-09 | Ln 2 S R L | Dispositivo di immissione di un flusso aria/gas in un gruppo ventilatore, particolarmente per bruciatori a gas con pre-miscelazione. |
ITPD20080005A1 (it) * | 2008-01-08 | 2009-07-09 | Ln 2 S R L | Dispositivo miscelatore aria-gas, particolarmente per apparecchi bruciatori a pre-miscelazione. |
IT1395189B1 (it) * | 2009-07-22 | 2012-09-05 | Ln 2 Srl Socio Unico | Dispositivo miscelatore aria-gas, particolarmente per apparecchi bruciatori a pre-miscelazione. |
DE102009050562A1 (de) * | 2009-10-23 | 2011-04-28 | Ebm-Papst Landshut Gmbh | Vorrichtung für die Ansaugseite eines Gebläses |
ES2474417T3 (es) | 2010-07-26 | 2014-07-09 | Hovalwerk Ag | Instalación de combustión con mezclado previo |
IT1402076B1 (it) * | 2010-09-02 | 2013-08-28 | Sit La Precisa Spa Con Socio Unico | Dispositivo miscelatore aria-gas per bruciatori a gas combustibile con premiscelazione |
IT1402023B1 (it) * | 2010-10-12 | 2013-08-28 | Riello Spa | Gruppo di alimentazione di una miscela aria/gas. |
DE102011014117A1 (de) * | 2011-03-15 | 2012-09-20 | Ebm-Papst Landshut Gmbh | Mischvorrichtung zur Mischung von Verbrennungsluft und Gas für ein Gasgerät |
US9835265B2 (en) | 2011-12-15 | 2017-12-05 | Honeywell International Inc. | Valve with actuator diagnostics |
US9846440B2 (en) | 2011-12-15 | 2017-12-19 | Honeywell International Inc. | Valve controller configured to estimate fuel comsumption |
US9851103B2 (en) | 2011-12-15 | 2017-12-26 | Honeywell International Inc. | Gas valve with overpressure diagnostics |
US10422531B2 (en) | 2012-09-15 | 2019-09-24 | Honeywell International Inc. | System and approach for controlling a combustion chamber |
US9841122B2 (en) | 2014-09-09 | 2017-12-12 | Honeywell International Inc. | Gas valve with electronic valve proving system |
US9645584B2 (en) | 2014-09-17 | 2017-05-09 | Honeywell International Inc. | Gas valve with electronic health monitoring |
US10503181B2 (en) | 2016-01-13 | 2019-12-10 | Honeywell International Inc. | Pressure regulator |
US10564062B2 (en) | 2016-10-19 | 2020-02-18 | Honeywell International Inc. | Human-machine interface for gas valve |
US11073281B2 (en) | 2017-12-29 | 2021-07-27 | Honeywell International Inc. | Closed-loop programming and control of a combustion appliance |
US10697815B2 (en) | 2018-06-09 | 2020-06-30 | Honeywell International Inc. | System and methods for mitigating condensation in a sensor module |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1290650B (de) * | 1955-01-03 | 1969-03-13 | Fritz Dr Ing | Vorrichtung zum Mischen und Durchfuehren von Verbrennungsreaktionen |
FR1141977A (fr) * | 1955-12-14 | 1957-09-12 | Brûleur tous gaz à mélangeur vertical pour table de cuisson de cuisinières domestiques | |
SU343111A1 (ru) * | 1970-09-25 | 1972-06-22 | А. И. Ващенко, М. И. Топтыгин, А. И. Либерман, Г. П. Денисов, В. Г. Скудин , В. Л. Гусовский | Радиационная газовая горелка |
GB1499213A (en) * | 1976-01-22 | 1978-01-25 | Trapp C | Gas burners |
DE3345611A1 (de) * | 1983-12-16 | 1985-06-27 | Deutsche Babcock Werke AG, 4200 Oberhausen | Brenner zur erzeugung von inertgas |
-
1997
- 1997-08-05 DE DE19733769A patent/DE19733769C2/de not_active Expired - Fee Related
-
1998
- 1998-07-09 EP EP98112693A patent/EP0896191B1/de not_active Expired - Lifetime
- 1998-07-09 AT AT98112693T patent/ATE199180T1/de not_active IP Right Cessation
- 1998-07-09 DE DE59800469T patent/DE59800469D1/de not_active Expired - Lifetime
- 1998-07-09 PT PT98112693T patent/PT896191E/pt unknown
- 1998-07-09 ES ES98112693T patent/ES2157103T3/es not_active Expired - Lifetime
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8839815B2 (en) | 2011-12-15 | 2014-09-23 | Honeywell International Inc. | Gas valve with electronic cycle counter |
US8899264B2 (en) | 2011-12-15 | 2014-12-02 | Honeywell International Inc. | Gas valve with electronic proof of closure system |
US8905063B2 (en) | 2011-12-15 | 2014-12-09 | Honeywell International Inc. | Gas valve with fuel rate monitor |
US8947242B2 (en) | 2011-12-15 | 2015-02-03 | Honeywell International Inc. | Gas valve with valve leakage test |
US9074770B2 (en) | 2011-12-15 | 2015-07-07 | Honeywell International Inc. | Gas valve with electronic valve proving system |
US9557059B2 (en) | 2011-12-15 | 2017-01-31 | Honeywell International Inc | Gas valve with communication link |
US9995486B2 (en) | 2011-12-15 | 2018-06-12 | Honeywell International Inc. | Gas valve with high/low gas pressure detection |
US9234661B2 (en) | 2012-09-15 | 2016-01-12 | Honeywell International Inc. | Burner control system |
US10215291B2 (en) | 2013-10-29 | 2019-02-26 | Honeywell International Inc. | Regulating device |
US10024439B2 (en) | 2013-12-16 | 2018-07-17 | Honeywell International Inc. | Valve over-travel mechanism |
USD960321S1 (en) | 2019-06-11 | 2022-08-09 | Karl Dungs Gmbh & Co. Kg | Venturi signal amplifier |
Also Published As
Publication number | Publication date |
---|---|
EP0896191A2 (de) | 1999-02-10 |
PT896191E (pt) | 2001-07-31 |
DE19733769C2 (de) | 2003-05-22 |
DE59800469D1 (de) | 2001-03-22 |
DE19733769A1 (de) | 1999-02-11 |
ES2157103T3 (es) | 2001-08-01 |
EP0896191A3 (de) | 1999-11-10 |
ATE199180T1 (de) | 2001-02-15 |
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