EP2623863A3 - Combustible gas-air mixing device - Google Patents

Combustible gas-air mixing device Download PDF

Info

Publication number
EP2623863A3
EP2623863A3 EP13153084.2A EP13153084A EP2623863A3 EP 2623863 A3 EP2623863 A3 EP 2623863A3 EP 13153084 A EP13153084 A EP 13153084A EP 2623863 A3 EP2623863 A3 EP 2623863A3
Authority
EP
European Patent Office
Prior art keywords
air duct
air
mixing device
throttle means
fuel gas
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
Application number
EP13153084.2A
Other languages
German (de)
French (fr)
Other versions
EP2623863A2 (en
EP2623863B1 (en
Inventor
Jochen Wriske
Matthias Wodtke
Nicole Schmidt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vaillant GmbH
Original Assignee
Vaillant GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Vaillant GmbH filed Critical Vaillant GmbH
Publication of EP2623863A2 publication Critical patent/EP2623863A2/en
Publication of EP2623863A3 publication Critical patent/EP2623863A3/en
Application granted granted Critical
Publication of EP2623863B1 publication Critical patent/EP2623863B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F23D14/62—Mixing devices; Mixing tubes
    • F23D14/64—Mixing devices; Mixing tubes with injectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • 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
    • F23D2203/00—Gaseous fuel burners
    • F23D2203/007—Mixing tubes, air supply regulation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2900/00—Special features of, or arrangements for burners using fluid fuels or solid fuels suspended in a carrier gas
    • F23D2900/14—Special features of gas burners
    • F23D2900/14481—Burner nozzles incorporating flow adjusting means

Abstract

Die Erfindung betrifft eine Mischvorrichtung zum Mischen von Brenngas und Luft in einem definierten Mischungsverhältnis, auf der Basis einer Venturidüse. In einem Luftkanal ist ein Drosselmittel vorgesehen. Mit zunehmender Luftgeschwindigkeit werden Luftkanal und Drosselmittel so gegeneinander verschoben, dass sich der zwischen Luftkanal und Drosselmittel freibleibende Querschnitt vergrößert. Mit dem Luftkanal oder Drosselmittel ist ein Ventil für das Brenngas verbunden, das proportional zur Querschnittsveränderung des Luftkanals geöffnet wird. Dadurch ist sichergestellt, dass die Mischvorrichtung Brenngas und Luft über einen sehr weiten Modulationsbereich in einem definierten Verhältnis mischt.

Figure imgaf001
The invention relates to a mixing device for mixing fuel gas and air in a defined mixing ratio, based on a Venturi nozzle. In an air duct, a throttle means is provided. As the air velocity increases, the air duct and throttle means are shifted relative to one another in such a way that the cross section which remains free between the air duct and the throttle means increases. Connected to the air duct or throttle means is a valve for the fuel gas which is opened in proportion to the change in the cross section of the air duct. This ensures that the mixing device mixes fuel gas and air over a very wide modulation range in a defined ratio.
Figure imgaf001
EP20130153084 2012-01-31 2013-01-29 Combustible gas-air mixing device Active EP2623863B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012001724 2012-01-31
DE201210003501 DE102012003501A1 (en) 2012-01-31 2012-02-22 Fuel gas-air mixing device

Publications (3)

Publication Number Publication Date
EP2623863A2 EP2623863A2 (en) 2013-08-07
EP2623863A3 true EP2623863A3 (en) 2013-08-21
EP2623863B1 EP2623863B1 (en) 2014-11-19

Family

ID=47709875

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20130153084 Active EP2623863B1 (en) 2012-01-31 2013-01-29 Combustible gas-air mixing device

Country Status (4)

Country Link
EP (1) EP2623863B1 (en)
DE (1) DE102012003501A1 (en)
DK (1) DK2623863T3 (en)
ES (1) ES2528968T3 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210291127A1 (en) * 2017-08-03 2021-09-23 Time Engineering Co., Ltd Fluid mixer
DE102017216961A1 (en) * 2017-09-25 2019-03-28 Robert Bosch Gmbh Mixing device for heaters and heaters with such a mixing device
CN113776071B (en) * 2021-09-30 2022-06-07 合肥工业大学 Tail gas air inlet pressure automatic control device for VOC low-temperature combustion

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4137573C2 (en) * 1991-11-15 1998-01-15 Motoren Werke Mannheim Ag Venturi mixer for mixing gas and air, especially for an internal combustion engine
DE10324706B3 (en) * 2003-05-30 2004-12-02 Hovalwerk Ag Device for controlling the gas / air ratio for a premixing combustion device

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8800711U1 (en) * 1988-01-22 1988-04-14 Motoren-Werke Mannheim Ag, 6800 Mannheim, De
DE19635974A1 (en) 1996-09-05 1998-03-12 Stiebel Eltron Gmbh & Co Kg Gas-air mixture system for gas heating apparatus
DE19729047C1 (en) * 1997-07-08 1998-09-24 Honeywell Bv Air mixer for gas burner
DE19806315C2 (en) * 1998-02-06 2000-05-25 Horst Gatzke Driving and mixing nozzle
DE19925567C1 (en) 1999-06-04 2000-12-14 Honeywell Bv Device for gas burners
DE10119598C2 (en) * 2001-04-21 2003-10-02 Bosch Gmbh Robert Device for mixing gas and air for a gas heater
ITBO20080278A1 (en) * 2008-04-30 2009-11-01 Gas Point S R L GAS BURNER WITH PRE-MIXING
ITBO20100441A1 (en) 2010-07-12 2012-01-13 Gas Point S R L GAS BURNER WITH PRE-MIXING

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4137573C2 (en) * 1991-11-15 1998-01-15 Motoren Werke Mannheim Ag Venturi mixer for mixing gas and air, especially for an internal combustion engine
DE10324706B3 (en) * 2003-05-30 2004-12-02 Hovalwerk Ag Device for controlling the gas / air ratio for a premixing combustion device

Also Published As

Publication number Publication date
DE102012003501A1 (en) 2013-08-01
EP2623863A2 (en) 2013-08-07
EP2623863B1 (en) 2014-11-19
ES2528968T3 (en) 2015-02-13
DK2623863T3 (en) 2015-03-02

Similar Documents

Publication Publication Date Title
MX339887B (en) Systems for the control and use of fluids and particles.
EP2664849A3 (en) Combustible gas-air mixing device
EP2466202A3 (en) Method for regulating a gas/air mixture
EP2312213A3 (en) Regulator for gas burner
EP2623863A3 (en) Combustible gas-air mixing device
EP2157305A3 (en) Gas turbine engine with variable area fan nozzle
EP2096293A3 (en) Aircraft engine with multiple fans
EP2423599A3 (en) Method for operating a burner arrangement and burner arrangement for implementing the method
EP2455665A3 (en) Gas turbine combustion chamber with a cooling air supply device
EP2700552A3 (en) Vehicle component with a flow guiding element
EP2397219A3 (en) Device for foaming a liquid
EP2679851A3 (en) Power tool having a brake system
EP2385304A3 (en) Lean pre-mix burner of a gas turbine engine with a concentric, ring-shaped central body
EP2385306A3 (en) Lean pre-mix burner of a gas turbine engine with flow guidance element
EP2090827A3 (en) Regulator for gas burner
EP2703720A3 (en) Method for operating a lean burn pre-mix burner of a flue gas turbine and device for carrying out the method
EP2759335A3 (en) Fluid distribution and mixing grid for mixing gases
EP2196635A3 (en) Device for avoiding high oil tank pressures under negative g conditions
EP2735793A3 (en) Combustible gas-air mixing device
EP2426413A3 (en) Gas control device with attached Venturi nozzle
EP2518412A3 (en) Ventilation system
EP1998112A3 (en) Burner for combusting a low-calorific fuel gas
EP2615278A3 (en) Metering device with a gas mixer and method for controlling gas mixture formation
EP2767744A3 (en) Control disc for mixing valve
EP2455617A3 (en) Axial ventilator with subsequent flow guide device and device for equalization of the flow speed

Legal Events

Date Code Title Description
PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

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): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

RIC1 Information provided on ipc code assigned before grant

Ipc: F23N 1/02 20060101ALI20130718BHEP

Ipc: F23D 14/64 20060101AFI20130718BHEP

Ipc: F23D 14/60 20060101ALI20130718BHEP

17P Request for examination filed

Effective date: 20140217

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20140819

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 697258

Country of ref document: AT

Kind code of ref document: T

Effective date: 20141215

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502013000188

Country of ref document: DE

Effective date: 20141224

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2528968

Country of ref document: ES

Kind code of ref document: T3

Effective date: 20150213

REG Reference to a national code

Ref country code: NL

Ref legal event code: T3

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

Effective date: 20150223

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LT

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: 20141119

Ref country code: PT

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: 20150319

Ref country code: IS

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: 20150319

Ref country code: FI

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: 20141119

Ref country code: NO

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: 20150219

REG Reference to a national code

Ref country code: SK

Ref legal event code: T3

Ref document number: E 18059

Country of ref document: SK

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RS

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: 20141119

Ref country code: GR

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: 20150220

Ref country code: LV

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: 20141119

Ref country code: PL

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: 20141119

Ref country code: CY

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: 20141119

Ref country code: HR

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: 20141119

Ref country code: SE

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: 20141119

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RO

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: 20141119

Ref country code: EE

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: 20141119

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502013000188

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

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: 20150129

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: MC

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: 20141119

26N No opposition filed

Effective date: 20150820

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 4

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150129

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

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: 20141119

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 5

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

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: 20141119

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DK

Payment date: 20161216

Year of fee payment: 5

Ref country code: CH

Payment date: 20161216

Year of fee payment: 5

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

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: 20141119

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20130129

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 6

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

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: 20141119

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

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: 20141119

REG Reference to a national code

Ref country code: DK

Ref legal event code: EBP

Effective date: 20180131

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: AL

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: 20141119

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180131

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180131

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 697258

Country of ref document: AT

Kind code of ref document: T

Effective date: 20180129

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180129

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SK

Payment date: 20221221

Year of fee payment: 11

Ref country code: CZ

Payment date: 20221221

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20221215

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20230125

Year of fee payment: 11

Ref country code: ES

Payment date: 20230201

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: TR

Payment date: 20230102

Year of fee payment: 11

Ref country code: IT

Payment date: 20230131

Year of fee payment: 11

Ref country code: DE

Payment date: 20230103

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20231219

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20231218

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20240201

Year of fee payment: 12