WO2000075566A1 - Vorrichtung für gasbrenner - Google Patents
Vorrichtung für gasbrenner Download PDFInfo
- Publication number
- WO2000075566A1 WO2000075566A1 PCT/EP2000/004756 EP0004756W WO0075566A1 WO 2000075566 A1 WO2000075566 A1 WO 2000075566A1 EP 0004756 W EP0004756 W EP 0004756W WO 0075566 A1 WO0075566 A1 WO 0075566A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- air
- shut
- air nozzles
- nozzles
- nozzle
- Prior art date
Links
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
- F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
- F23D14/04—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner
-
- 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
-
- 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
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2237/00—Controlling
- F23N2237/10—High or low fire
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/7722—Line condition change responsive valves
- Y10T137/7837—Direct response valves [i.e., check valve type]
- Y10T137/7847—With leak passage
- Y10T137/7849—Bypass in valve casing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/87571—Multiple inlet with single outlet
- Y10T137/87587—Combining by aspiration
- Y10T137/87643—With condition responsive valve
Definitions
- the invention relates to a device for gas burners with a plurality of air nozzles for combustion air according to the preamble of claim 1.
- a standard device according to the prior art is known from DE utility model 298 01 429. Combustion air is moved through air nozzles connected in parallel, the minimum output and thus the lower modulation range of the device being determined by the sum of the minimum outputs of all air nozzles connected in parallel in the device shown there. This lower modulation range limits the range of use of such devices according to the prior art.
- Further devices according to the prior art are known from JP 57-188917A, JP 57-31716A, DE 197 28 965 AI and FR 758 974.
- the present invention addresses the problem of creating a device for gas burners with a plurality of air nozzles for combustion air, which has a larger modulation range and thus a larger area of use.
- Figure 1 shows a device according to the invention according to a first exemplary embodiment of the invention in a schematic sectional view.
- Fig. 2 is a modulation diagram for a device according to the invention according to a second embodiment of the invention.
- FIG. 1 shows a first exemplary embodiment of a device according to the invention with two air nozzles 10, 11 and a gas nozzle 12, the gas stream flowing through the gas nozzle 12 being mixed with the combustion air flows flowing through the air nozzles 10, 11 and the device according to the invention by leaves a mixture outlet 13 in the direction of a gas burner, burner flames 14 being shown by the gas burner.
- the two air nozzles 10, 11 of the exemplary embodiment according to FIG. 1 are designed on the one hand as Venturi nozzles and on the other hand are connected in parallel with one another. In the case of such a device according to the prior art, this would mean that the minimum output of the device or its lower modulation range is determined by the sum of the minimum outputs of the two air nozzles 10, 11.
- a shut-off device 15 is assigned to the air nozzle 11 in the exemplary embodiment shown in FIG. 1, wherein the air flow through the air nozzle 11 can be switched off with this shut-off device 15.
- combustion air is therefore only moved through the air nozzle 10, and thus the lower modulation range of the device according to the invention shifts in the direction of the minimum power of the air nozzle 10.
- the shut-off device 15 is designed as a flap 16 with an associated spring element 17.
- the strength of the spring force of the spring element 17 and the design or construction of the flap 16 determine the shut-off characteristic of the shut-off device 15. If the air flow through the air nozzle 10 falls below a certain amount, the force exerted on the flap 16 by this air flow is insufficient more to keep the flap 16 open against the spring force of the spring element 17. The flap 16 or the shut-off device 15 is then closed.
- the air nozzle 11, which is associated with the shut-off device 15, is also associated with a bypass 18.
- the bypass 18 extends from an inlet side 19 to an outlet side 20 of the shut-off device 15.
- the bypass 18 ensures that even when the shut-off device 15 is closed, a small combustion air flow is moved from the air nozzle 11 in the direction of the burner (not shown in detail) . This prevents 15 gas from escaping through the air nozzle 11 as a result of a pressure difference when the shut-off device is closed.
- the air nozzles 10, 11 differ in their performance characteristics.
- the air nozzle 10 has a lower output and thus a minimum output than the air nozzle 11.
- both air nozzles 10, 11 are supplied with gas via a gas nozzle 12.
- each air nozzle 10, 11 it is also possible for each air nozzle 10, 11 to be assigned a separate gas nozzle. In this case, when the shut-off device 15 of the air nozzle 11 is closed, the gas nozzle assigned to this air nozzle 11 must also be closed. In this case, an additional shut-off device would be required.
- the closing of the shut-off device 15 depends on the air flow through the air nozzle 11. It is, so to speak, a combustion air modulation.
- an actuator can also be used which closes the shut-off device 15.
- an actuator opens or closes the shut-off device 15 depending on certain load levels.
- FIG. 1 It goes without saying that the principle described in FIG. 1 can be extended to devices with any number of air nozzles connected in parallel. Then each air nozzle is assigned a shut-off device except for the air nozzle with the lowest performance characteristics. The air nozzle with the lowest performance characteristics would therefore always be open. When one or more air nozzles are closed, the open air nozzles continue to work, and so the modulation range of the device according to the invention can be expanded.
- Figure 2 shows a modulation diagram for a device according to the invention according to a second embodiment of the invention, in which three air nozzles are connected in parallel.
- the fan speed in revolutions per minute is plotted on the X-axis 21 and the thermal load in kilowatts on the Y-axis 22.
- Line 23 in FIG. 2 corresponds to the modulation graph of a single air nozzle
- line 24 the modulation graph of two parallel air nozzles
- line 25 to the modulation graph of three parallel air nozzles, each without the shut-off devices according to the invention.
- FIG. 2 shows with line 26 a modulation graph of a device according to the invention comprising three air nozzles, two air nozzles each being assigned a shut-off device.
- the fan runs at high speeds, so the shut-off devices are open and combustion air flows through all three air nozzles.
- the shut-off devices assigned to the air nozzles with greater performance characteristics are closed, and finally, in the region 28 of the minimum load operation, only the air nozzle with the lowest minimum output is opened. In this way, the modulation range of the device according to the invention can accordingly be increased in the direction of small loads.
- the modulation range can also be shifted downward in devices according to the prior art by continuously reducing the fan speed.
- the pressure difference generated at the air nozzles becomes very small and a stable control signal is therefore no longer available.
- a stable control signal for low operating loads can only be made available with the device according to the invention.
- the modulation range can be expanded in the sense of stable control signals only with the device according to the invention.
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)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU55257/00A AU5525700A (en) | 1999-06-04 | 2000-05-25 | Device for gas burners |
DE50005528T DE50005528D1 (de) | 1999-06-04 | 2000-05-25 | Vorrichtung für gasbrenner |
EP00940268A EP1183483B1 (de) | 1999-06-04 | 2000-05-25 | Vorrichtung für gasbrenner |
CA002371188A CA2371188A1 (en) | 1999-06-04 | 2000-05-25 | A device for gas burners |
US10/009,371 US6604938B1 (en) | 1999-06-04 | 2000-05-25 | Device for gas burners |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19925567A DE19925567C1 (de) | 1999-06-04 | 1999-06-04 | Vorrichtung für Gasbrenner |
DE19925567.9 | 1999-06-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000075566A1 true WO2000075566A1 (de) | 2000-12-14 |
Family
ID=7910210
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2000/004756 WO2000075566A1 (de) | 1999-06-04 | 2000-05-25 | Vorrichtung für gasbrenner |
Country Status (6)
Country | Link |
---|---|
US (1) | US6604938B1 (de) |
EP (1) | EP1183483B1 (de) |
AU (1) | AU5525700A (de) |
CA (1) | CA2371188A1 (de) |
DE (2) | DE19925567C1 (de) |
WO (1) | WO2000075566A1 (de) |
Families Citing this family (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070204858A1 (en) * | 2006-02-22 | 2007-09-06 | The Brinkmann Corporation | Gas cooking appliance and control system |
ITBO20080278A1 (it) * | 2008-04-30 | 2009-11-01 | Gas Point S R L | Bruciatore a gas a pre-miscelazione |
ITBO20100441A1 (it) * | 2010-07-12 | 2012-01-13 | Gas Point S R L | Bruciatore a gas a pre-miscelazione |
DE102010044591A1 (de) * | 2010-09-07 | 2012-03-08 | Honeywell Technologies Sarl | Gasregelgerät mit angebauter Venturi-Düse |
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 |
KR101214745B1 (ko) * | 2011-03-25 | 2012-12-21 | 주식회사 경동나비엔 | 유로 분리형 가스-공기 혼합장치 |
ITMI20111738A1 (it) * | 2011-09-27 | 2013-03-28 | Smeg Spa | Bruciatore per un piano di cottura a gas e piano di cottura a gas incorporante tale bruciatore |
DE102012003501A1 (de) | 2012-01-31 | 2013-08-01 | Vaillant Gmbh | Brenngas-Luft-Mischvorrichtung |
KR101308932B1 (ko) * | 2012-02-06 | 2013-09-23 | 주식회사 경동나비엔 | 연소기기용 가스 공기 혼합장치 |
KR101308936B1 (ko) * | 2012-02-06 | 2013-09-23 | 주식회사 경동나비엔 | 연소기기용 가스 공기 혼합장치 |
KR101320113B1 (ko) * | 2012-02-28 | 2013-10-18 | 주식회사 경동나비엔 | 온수기용 듀얼 벤추리 |
EP2653215B1 (de) | 2012-04-20 | 2020-01-01 | Honeywell Technologies Sarl | Gas-/Luftmischvorrichtung für einen Gasbrenner |
DE102012009628A1 (de) * | 2012-05-15 | 2013-11-21 | Vaillant Gmbh | Brenngas-Luft-Mischvorrichtung |
AT513013B1 (de) * | 2012-05-21 | 2014-06-15 | Vaillant Group Austria Gmbh | Brenngas-Luft-Mischvorrichtung |
DE102012023008A1 (de) | 2012-11-26 | 2014-05-28 | Vaillant Gmbh | Brenngas-Luft-Mischvorrichtung |
ITMI20122008A1 (it) * | 2012-11-27 | 2014-05-28 | Polidoro Spa | Dispositivo per la gestione del rapporto comburente/combustibile di impianti termotecnici. |
DE102013101676B4 (de) * | 2013-02-20 | 2021-02-11 | Mhg Heiztechnik Gmbh | Gasluftmischbehälter und Gasbrenner |
KR101448992B1 (ko) * | 2013-04-16 | 2014-10-13 | 주식회사 경동나비엔 | 연소기기용 듀얼 벤츄리 |
US9746176B2 (en) * | 2014-06-04 | 2017-08-29 | Lochinvar, Llc | Modulating burner with venturi damper |
JP6725339B2 (ja) * | 2016-03-28 | 2020-07-15 | リンナイ株式会社 | 予混合装置 |
JP6654494B2 (ja) * | 2016-04-01 | 2020-02-26 | リンナイ株式会社 | 予混合装置の制御方法 |
WO2019026665A1 (ja) * | 2017-08-03 | 2019-02-07 | タイム技研株式会社 | 流体混合装置 |
EP3508788B1 (de) * | 2018-01-09 | 2020-10-21 | Orkli, S. Coop. | Mischervorrichtung für einen gasbrenner |
IT201800003488A1 (it) * | 2018-03-13 | 2019-09-13 | Bertelli & Partners Srl | Dispositivo di controllo di una miscela comburente-combustibile per bruciatori a gas premiscelati |
EP3617596B1 (de) | 2018-08-28 | 2021-10-06 | Ademco Inc. | Verfahren zum betrieb eines gasbrennergeräts |
IT201800010736A1 (it) | 2018-11-30 | 2020-05-30 | Bertelli & Partners Srl | Dispositivo di controllo della miscela per bruciatore a gas pre-miscelato |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR758974A (fr) | 1933-07-28 | 1934-01-26 | Indugas Ind U Gasofen Bauges M | Brûleur à gaz à longueur de flamme réglable |
DE2305764A1 (de) * | 1973-02-07 | 1974-08-08 | Herbert Rehn Maschinenhohlglas | Gasmischvorrichtung fuer mit druckluft, brenngas und sauerstoff betriebene brenner |
JPS5731716A (en) | 1980-08-04 | 1982-02-20 | Borukano Kk | Burner |
JPS57188917A (en) | 1981-05-19 | 1982-11-20 | Matsushita Electric Ind Co Ltd | Combustor |
JPS58182031A (ja) * | 1982-04-16 | 1983-10-24 | Matsushita Electric Ind Co Ltd | 燃焼制御装置 |
JPS6325413A (ja) * | 1986-07-16 | 1988-02-02 | Matsushita Electric Ind Co Ltd | コンロ |
DE19728965A1 (de) * | 1996-07-01 | 1998-01-15 | Vaillant Joh Gmbh & Co | Vormischender Gasbrenner |
DE19635974A1 (de) * | 1996-09-05 | 1998-03-12 | Stiebel Eltron Gmbh & Co Kg | Gas/Luft-Mischsystem für Gasheizgeräte |
DE29801429U1 (de) | 1998-01-16 | 1998-05-14 | Honeywell Bv | Gasregelgerät mit angebauter Venturi-Düse und Gehäuse |
DE19728925A1 (de) | 1997-07-07 | 1999-01-14 | Bosch Gmbh Robert | Einrichtung zur Anpassung von Steuereinrichtungen eines Kraftfahrzeugs |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4417868A (en) * | 1981-09-04 | 1983-11-29 | Battelle Development Corporation | Compact plenum for pulse combustors |
US5799831A (en) * | 1996-03-20 | 1998-09-01 | Ecolab Inc. | Dual aspirator |
US6206687B1 (en) * | 1997-01-24 | 2001-03-27 | Aaf-Mcquay Inc. | High turndown modulating gas burner |
US6375454B1 (en) * | 1999-11-12 | 2002-04-23 | Sarcos, L.C. | Controllable combustion device |
-
1999
- 1999-06-04 DE DE19925567A patent/DE19925567C1/de not_active Expired - Fee Related
-
2000
- 2000-05-25 EP EP00940268A patent/EP1183483B1/de not_active Expired - Lifetime
- 2000-05-25 DE DE50005528T patent/DE50005528D1/de not_active Expired - Fee Related
- 2000-05-25 AU AU55257/00A patent/AU5525700A/en not_active Abandoned
- 2000-05-25 WO PCT/EP2000/004756 patent/WO2000075566A1/de active IP Right Grant
- 2000-05-25 US US10/009,371 patent/US6604938B1/en not_active Expired - Fee Related
- 2000-05-25 CA CA002371188A patent/CA2371188A1/en not_active Abandoned
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR758974A (fr) | 1933-07-28 | 1934-01-26 | Indugas Ind U Gasofen Bauges M | Brûleur à gaz à longueur de flamme réglable |
DE2305764A1 (de) * | 1973-02-07 | 1974-08-08 | Herbert Rehn Maschinenhohlglas | Gasmischvorrichtung fuer mit druckluft, brenngas und sauerstoff betriebene brenner |
JPS5731716A (en) | 1980-08-04 | 1982-02-20 | Borukano Kk | Burner |
JPS57188917A (en) | 1981-05-19 | 1982-11-20 | Matsushita Electric Ind Co Ltd | Combustor |
JPS58182031A (ja) * | 1982-04-16 | 1983-10-24 | Matsushita Electric Ind Co Ltd | 燃焼制御装置 |
JPS6325413A (ja) * | 1986-07-16 | 1988-02-02 | Matsushita Electric Ind Co Ltd | コンロ |
DE19728965A1 (de) * | 1996-07-01 | 1998-01-15 | Vaillant Joh Gmbh & Co | Vormischender Gasbrenner |
DE19635974A1 (de) * | 1996-09-05 | 1998-03-12 | Stiebel Eltron Gmbh & Co Kg | Gas/Luft-Mischsystem für Gasheizgeräte |
DE19728925A1 (de) | 1997-07-07 | 1999-01-14 | Bosch Gmbh Robert | Einrichtung zur Anpassung von Steuereinrichtungen eines Kraftfahrzeugs |
DE29801429U1 (de) | 1998-01-16 | 1998-05-14 | Honeywell Bv | Gasregelgerät mit angebauter Venturi-Düse und Gehäuse |
Non-Patent Citations (2)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 008, no. 022 (M - 272) 31 January 1984 (1984-01-31) * |
PATENT ABSTRACTS OF JAPAN vol. 012, no. 229 (M - 714) 29 June 1988 (1988-06-29) * |
Also Published As
Publication number | Publication date |
---|---|
DE19925567C1 (de) | 2000-12-14 |
DE50005528D1 (de) | 2004-04-08 |
US6604938B1 (en) | 2003-08-12 |
EP1183483B1 (de) | 2004-03-03 |
EP1183483A1 (de) | 2002-03-06 |
CA2371188A1 (en) | 2000-12-14 |
AU5525700A (en) | 2000-12-28 |
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