EP1082575A1 - Systeme de regulation pour bruleur a gaz - Google Patents

Systeme de regulation pour bruleur a gaz

Info

Publication number
EP1082575A1
EP1082575A1 EP99927777A EP99927777A EP1082575A1 EP 1082575 A1 EP1082575 A1 EP 1082575A1 EP 99927777 A EP99927777 A EP 99927777A EP 99927777 A EP99927777 A EP 99927777A EP 1082575 A1 EP1082575 A1 EP 1082575A1
Authority
EP
European Patent Office
Prior art keywords
gas
combustion air
flow
signal
sensor
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
EP99927777A
Other languages
German (de)
English (en)
Other versions
EP1082575B1 (fr
Inventor
Derk Vegter
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.)
Garrett Motion SARL
Original Assignee
Honeywell BV
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 Honeywell BV filed Critical Honeywell BV
Publication of EP1082575A1 publication Critical patent/EP1082575A1/fr
Application granted granted Critical
Publication of EP1082575B1 publication Critical patent/EP1082575B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D14/00Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23NREGULATING OR CONTROLLING COMBUSTION
    • F23N1/00Regulating fuel supply
    • F23N1/02Regulating fuel supply conjointly with air supply
    • F23N1/022Regulating fuel supply conjointly with air supply using electronic means
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23NREGULATING OR CONTROLLING COMBUSTION
    • F23N5/00Systems for controlling combustion
    • F23N5/18Systems for controlling combustion using detectors sensitive to rate of flow of air or fuel
    • F23N5/184Systems for controlling combustion using detectors sensitive to rate of flow of air or fuel using electronic means
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23NREGULATING OR CONTROLLING COMBUSTION
    • F23N2225/00Measuring
    • F23N2225/02Measuring filling height in burners
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23NREGULATING OR CONTROLLING COMBUSTION
    • F23N2225/00Measuring
    • F23N2225/04Measuring pressure
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23NREGULATING OR CONTROLLING COMBUSTION
    • F23N2233/00Ventilators
    • F23N2233/06Ventilators at the air intake
    • F23N2233/08Ventilators at the air intake with variable speed
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23NREGULATING OR CONTROLLING COMBUSTION
    • F23N2235/00Valves, nozzles or pumps
    • F23N2235/12Fuel valves
    • F23N2235/16Fuel valves variable flow or proportional valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23NREGULATING OR CONTROLLING COMBUSTION
    • F23N3/00Regulating air supply or draught
    • F23N3/08Regulating air supply or draught by power-assisted systems
    • F23N3/082Regulating air supply or draught by power-assisted systems using electronic means

Definitions

  • the invention relates to a control device for gas burners according to the preamble of claim 1.
  • Control devices for gas burners are used to provide a gas / air mixture, that is to say to supply a gas stream and a ner combustion air stream to a burner.
  • the gas flow through a gas valve is adjustable depending on the ner combustion air pressure.
  • Such control devices are known from DE 24 27 819 B2, AT-PS 190 195 and DE 37 07 883 Cl.
  • the present invention is based on the problem of creating a regulating device for gas burners which avoids the above disadvantages and thus has a larger area of application.
  • Fig. 1 shows a control device according to the invention with further assemblies in a schematic representation.
  • the control device shown in the drawing is used to provide a gas / air mixture for a gas burner, not shown.
  • a gas flow can be fed to the burner (not shown) via a first line 10.
  • a gas control valve 11 and two gas safety valves 12, 13 are assigned to the first line 10 carrying the gas flow.
  • the gas control valve 11 and the gas safety valves 12, 13 can be configured in any way.
  • the structure and mode of operation of gas safety valves and gas control valves are well known from the prior art.
  • a ner combustion air flow can also be fed to the burner (not shown) via a second line 14.
  • the ner combustion air flow is generated by a blower 15, the speed of which is determined by a motor 16 assigned to the blower 15.
  • a diaphragm or throttle point 17 is arranged within the second line 14 carrying the ner combustion air flow.
  • the first line 10 carrying the gas flow opens into the second line 14 carrying the air flow.
  • the first line 10 carrying the gas flow is closed by a gas nozzle 18.
  • a sensor 19 is arranged between the first line 10 carrying the gas flow and the second line 14 carrying the ner combustion air flow. With a first measuring point 20, the sensor 19 is connected to the first line 10 carrying the gas flow, namely in the flow direction of the gas in front of the gas nozzle 18. With a second measuring point 21, the sensor 19 is also connected to the second line 14 carrying the ner combustion air flow, namely in the direction of flow of the ner combustion air before the throttle point 17.
  • the sensor 19 is designed as a differential pressure sensor, in particular as a flow meter or anemometer. With the aid of the sensor 19, the pressure difference between the gas pressure and the combustion air pressure can accordingly be determined. In the case in which the gas pressure coincides with the combustion air, the flow through the sensor 19 designed as a flow meter or anemometer is zero. If the combustion air pressure is higher than the gas pressure, a flow from the second measuring point 21 in the direction of the first measuring point 20 can be detected. On the other hand, in the case of a combustion air pressure that is lower than the gas pressure, a flow from the first measuring point 20 in the direction of the second measuring point 21 can be detected by the sensor 19. The pressure ratios of gas pressure and combustion air pressure through sensor 19 can accordingly be determined from the amount of flow through sensor 19 and the flow direction.
  • the senor 19 Depending on these pressure conditions, the sensor 19 generates an electrical or electronic signal 22.
  • This electrical or electronic signal 22 is fed to a control device or control device 23, which generates a control signal 24 for an actuator 25 of the gas control valve 11.
  • the electrical or electronic signal 22 of the sensor 19 is offset in a summing device 26 with an auxiliary signal 27, specifically before the signal 22 is fed to the control device 23.
  • the control device 23 is accordingly supplied with the output signal 30 of the summing device 26 as an input signal, the output signal 30 being an additive superimposition of the signals 22, 27.
  • a factor can be determined in the evaluation device 28, which determines the transmission ratio between gas flow and combustion air flow. This factor is a multiplication factor. The higher this multiplication factor, the higher the gear ratio. The transmission ratio can be varied by varying the multiplication factor.

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

L'invention concerne un système de régulation pour brûleur à gaz. Les systèmes de régulation pour brûleur à gaz servent à fournir un mélange gaz/air à un brûleur. On connaît des systèmes de régulation dans lesquels le rapport de transmission entre la pression du gaz et la pression de l'air de combustion ou entre le flux gazeux et le flux d'air de combustion est variable. Dans tous les systèmes de régulation connus, la mesure de pression nécessaire s'effectue pneumatiquement. Le système de régulation décrit dispose d'un détecteur (19) produisant un signal électrique ou électronique (22), ce détecteur étant disposé entre une première canalisation (10) guidant le flux gazeux, et une deuxième canalisation (14) guidant le flux d'air de combustion. En outre, le système de régulation comporte un système de sommation (26) qui calcule le signal électrique ou électronique (22) du détecteur (19) à l'aide d'un signal auxiliaire (27). Un signal de régulation (24) produit à partir d'un signal de sortie (30) du système de sommation (26) sert à modifier le flux gazeux.
EP99927777A 1998-06-02 1999-05-27 Systeme de regulation pour bruleur a gaz Expired - Lifetime EP1082575B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19824524 1998-06-02
DE1998124524 DE19824524C2 (de) 1998-06-02 1998-06-02 Regeleinrichtung für Gasbrenner
PCT/EP1999/003671 WO1999063273A1 (fr) 1998-06-02 1999-05-27 Systeme de regulation pour bruleur a gaz

Publications (2)

Publication Number Publication Date
EP1082575A1 true EP1082575A1 (fr) 2001-03-14
EP1082575B1 EP1082575B1 (fr) 2003-01-29

Family

ID=7869611

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99927777A Expired - Lifetime EP1082575B1 (fr) 1998-06-02 1999-05-27 Systeme de regulation pour bruleur a gaz

Country Status (8)

Country Link
EP (1) EP1082575B1 (fr)
JP (1) JP2002517703A (fr)
KR (1) KR20010052485A (fr)
CA (1) CA2334383A1 (fr)
DE (2) DE19824524C2 (fr)
DK (1) DK1082575T3 (fr)
ES (1) ES2187166T3 (fr)
WO (1) WO1999063273A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1331153C (zh) * 2001-07-31 2007-08-08 惠普公司 一写多读存储器件的写脉冲限制
EP2363642A1 (fr) 2010-03-01 2011-09-07 Vaillant GmbH Dispositif et procédé de régulation du rapport gaz combustible-air d'un brûleur entraîné par gaz combustible
EP2589868A1 (fr) * 2011-11-07 2013-05-08 Honeywell Technologies Sarl Procédé destiné au fonctionnement dýun brûleur à gaz

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19922226C1 (de) * 1999-05-14 2000-11-30 Honeywell Bv Regeleinrichtung für Gasbrenner
DE10056064B4 (de) * 2000-11-11 2005-09-08 Honeywell B.V. Verfahren zum Regeln eines Gasbrenners
DE102005034758B3 (de) * 2005-07-21 2006-08-10 Honeywell Technologies S.A.R.L. Verfahren zum Betreiben eines Gasbrenners
KR20080037753A (ko) * 2006-10-27 2008-05-02 (주)금산조형연구소 성화대 연소 장치
AT510075B1 (de) 2010-07-08 2012-05-15 Vaillant Group Austria Gmbh Verfahren zur kalibrierung einer einrichtung zum regeln des brenngas-luft-verhältnisses eines brenngasbetriebenen brenners
KR101308932B1 (ko) * 2012-02-06 2013-09-23 주식회사 경동나비엔 연소기기용 가스 공기 혼합장치
DE102021127223A1 (de) * 2021-10-20 2023-04-20 Ebm-Papst Landshut Gmbh Verfahren zur modellprädiktiven Regelung eines Brennstoff-Luft-Gemisches eines Systems sowie ein zugehöriges System

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT190195B (de) * 1954-08-12 1957-06-11 Siemens Ag Einrichtung zur Sicherung des Betriebes von Gas- oder Ölfeuerungen
NL7308176A (fr) * 1973-06-13 1974-12-17
GB1571906A (en) * 1977-11-22 1980-07-23 British Gas Corp Air fuel gas ratio controls for burners
JPS58224226A (ja) * 1982-06-21 1983-12-26 Matsushita Electric Ind Co Ltd 燃焼制御装置
JPS5969611A (ja) * 1982-10-14 1984-04-19 Matsushita Electric Ind Co Ltd 燃焼制御装置
JPS5997421A (ja) * 1982-11-25 1984-06-05 Matsushita Electric Ind Co Ltd 燃焼制御装置
JPS602111A (ja) * 1983-06-17 1985-01-08 株式会社クボタ 田植機の苗植付駆動装置
US4468192A (en) * 1983-07-01 1984-08-28 Honeywell Inc. Control system for controlling the fuel/air ratio of combustion apparatus
JPS6080018A (ja) * 1983-10-06 1985-05-07 Matsushita Electric Ind Co Ltd ガス燃焼制御装置
JPS6080118A (ja) * 1983-10-07 1985-05-08 Canon Inc 磁気記録媒体
JPS6091335A (ja) * 1983-10-26 1985-05-22 Canon Inc カメラのフイルム給送装置
JPS60122818A (ja) * 1983-12-06 1985-07-01 Matsushita Electric Ind Co Ltd ガス燃焼制御装置
JPS60164115A (ja) * 1984-02-06 1985-08-27 Matsushita Electric Ind Co Ltd ガス燃焼制御装置
JPS62190322A (ja) * 1986-02-18 1987-08-20 Rinnai Corp 燃焼制御装置
DE3707883C1 (de) * 1987-03-12 1988-07-21 Dungs Karl Gmbh & Co Einrichtung zur Leistungsregelung von brennstoffbefeuerten Waermeerzeugern
JPS63251720A (ja) * 1987-04-07 1988-10-19 Rinnai Corp 燃焼制御装置
GB2237665B (en) * 1989-10-31 1993-09-01 Potterton Int Ltd Heating boilers
US5634786A (en) * 1994-11-30 1997-06-03 North American Manufacturing Company Integrated fuel/air ratio control system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9963273A1 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1331153C (zh) * 2001-07-31 2007-08-08 惠普公司 一写多读存储器件的写脉冲限制
EP2363642A1 (fr) 2010-03-01 2011-09-07 Vaillant GmbH Dispositif et procédé de régulation du rapport gaz combustible-air d'un brûleur entraîné par gaz combustible
EP2589868A1 (fr) * 2011-11-07 2013-05-08 Honeywell Technologies Sarl Procédé destiné au fonctionnement dýun brûleur à gaz

Also Published As

Publication number Publication date
CA2334383A1 (fr) 1999-12-09
WO1999063273A1 (fr) 1999-12-09
DE19824524C2 (de) 2002-08-08
JP2002517703A (ja) 2002-06-18
ES2187166T3 (es) 2003-05-16
DE59904166D1 (de) 2003-03-06
KR20010052485A (ko) 2001-06-25
DK1082575T3 (da) 2003-06-23
DE19824524C1 (de) 2000-02-03
EP1082575B1 (fr) 2003-01-29

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