EP2014979A2 - Dispositif de fonctionnement pour un brûleur de surface haute performance et son procédé de fonctionnement - Google Patents

Dispositif de fonctionnement pour un brûleur de surface haute performance et son procédé de fonctionnement Download PDF

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Publication number
EP2014979A2
EP2014979A2 EP08005276A EP08005276A EP2014979A2 EP 2014979 A2 EP2014979 A2 EP 2014979A2 EP 08005276 A EP08005276 A EP 08005276A EP 08005276 A EP08005276 A EP 08005276A EP 2014979 A2 EP2014979 A2 EP 2014979A2
Authority
EP
European Patent Office
Prior art keywords
burner
gas
pressure
operating device
gas pressure
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.)
Withdrawn
Application number
EP08005276A
Other languages
German (de)
English (en)
Other versions
EP2014979A3 (fr
Inventor
Siegfried Berger
Gerhard Stangassinger
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.)
Karl Dungs GmbH and Co KG
Original Assignee
Karl Dungs GmbH and Co KG
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 Karl Dungs GmbH and Co KG filed Critical Karl Dungs GmbH and Co KG
Publication of EP2014979A2 publication Critical patent/EP2014979A2/fr
Publication of EP2014979A3 publication Critical patent/EP2014979A3/fr
Withdrawn legal-status Critical Current

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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
    • F23D14/02—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
    • F23D14/34—Burners specially adapted for use with means for pressurising the gaseous fuel or the combustion air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/24—Preventing development of abnormal or undesired conditions, i.e. safety arrangements

Definitions

  • the invention relates to a regulator device for a surface burner and to a method for igniting such a surface burner.
  • the surface burners are characterized by a large, mostly cylindrical burner surface, which is provided with a plurality of fuel / air outlet openings. To the Outlets burn relatively small flames, so that the burner is covered on its surface by a layer of flame.
  • An operating device which also allows the operation of a surface burner is, for example, from DE 10 2004 038 673 B3 known.
  • This operating device has a fan which generates a gas / air mixture for supplying the burner.
  • the fan draws in air and gas.
  • Gas is provided via a gas pressure regulator. This is controlled on the one hand by the gas pressure of the gas line leading to the fan and on the other hand by the ambient air pressure. In this way, the gas pressure regulator automatically adjusts the gas pressure to the variable ambient air pressure so that a desired gas / air mixture is maintained relatively independently of ambient air pressure fluctuations.
  • the increase in the pressure supplied by the gas pressure regulator or the enrichment of the gas / air mixture preferably takes place within a period of time in which sparkover arcs are generated at the surface burner via a high-voltage ignition device.
  • the adjustment of the gas pressure regulator achieved by the provided for influencing a predetermined reference value control input is subjected to an increased pressure.
  • the gas pressure regulator thus supplies during the ignition operation a gas pressure which would correspond to a higher air pressure.
  • the higher air pressure is actually absent, this results in enrichment of the gas / air mixture.
  • the influencing of the reference value for the gas pressure is preferably effected by switching between two pressure stages, namely a) ambient pressure and b) increased other pressure.
  • the switching can be done by a valve assembly with a directional control valve or other valves. These are preferably electrically controlled and receive a pulse from a control device, for example a so-called automatic burner control or even a circuit branch of the high-voltage ignition device of the burner.
  • the increased pressure level can be tapped, for example, at the leading to the burner fan output. It is alternatively possible to use other sources of pressure.
  • the adjusting device preferably includes a fluid actuator for actuating the gas pressure regulator.
  • the fluid actuator is associated with a control arrangement, for example in the form of a pressure cell, the membrane is acted upon on one side of the reference pressure.
  • the diaphragm of the pressure cell preferably controls a drain valve to regulate the actuating pressure of the actuator.
  • the burner is preceded by a fan.
  • the fan has a connected to the burner Pressure side and a suction side, where the gas coming from the gas pressure regulator can be supplied.
  • a correspondingly different negative pressure is created at the blower inlet.
  • This negative pressure continues across the mouth of the gas line up to the gas pressure regulator, which wants to compensate for the negative pressure by appropriate gas supply.
  • the delivered amount of gas automatically adapts to the amount of air delivered by the fan. This is especially true when the gas is passed through a jet pump assembly in the fan, which is connected to the diffuser of the jet pump, while the gas line with the drive nozzle of the jet pump and the suction port are connected to the ambient air. Control of the fan speed and lowering of the same to ignite the burner causes the ignition of the burner with reduced power.
  • FIG. 1 an operating device 1 for a surface burner 2 is illustrated.
  • the surface burner 2 has, for example, a cylindrical lateral surface 3 with a multiplicity of nozzle openings 4, from which a gas / air mixture emerges during operation and forms flames.
  • This surface burner 2 may have a power of up to 1 MW or more.
  • Its active surface provided with nozzle openings 4 may comprise one or more square meters.
  • the operating device 1 has a blower 5 which supplies the surface burner 2 with a gas / air mixture.
  • the output of the blower 5 is connected via a line 6 to the surface burner 2.
  • the fan 5 is supplied via a gas line 7 gas and air via corresponding Heilansaugö réelleen or a line 8. Here the fan sucks 5 ambient air.
  • the gas line 7 receives gas via a gas pressure regulator 9 with an adjusting device 10. It is adapted to generate in the line 7 a gas pressure which is in a fixed relationship to the ambient air pressure. For example, the gas pressure in the gas duct 7 will be adjusted to the ambient air pressure, i. adjusted to zero millibars.
  • a gas / air mixing means may be provided to supply the fan with a gas / air mixture.
  • the adjusting device 10 is actuated to regulate the gas pressure in the gas line 7, a valve 11 which in FIG. 2 is illustrated in its schematic structure. It has a valve closure member in the form of a regulator plate 12, which more or less throttles the gas flow in the gas line 7 depending on its setting position.
  • the regulator plate 12 is connected via a connecting member, for example a push rod 13, with a diaphragm 14 of a fluid actuator 15. In this, the membrane 14 shares a Working chamber 16 from. While a compression spring 17 or other spring means preloaded the regulator plate 12 in its closed position, a positive pressure in the working chamber 16 leads to the opening of the valve 11.
  • the working chamber 16 is connected via a throttle 17 with the front of the valve 11 lying part of the gas line. 7 connected.
  • a control valve 18 of a pressure cell 19 which contains a control diaphragm 20.
  • the control diaphragm 20 divides the interior of the pressure cell 19 into an outer chamber 21 and an inner chamber 22.
  • the inner chamber 22 is connected via a line 23 to the part of the gas line 7 located downstream of the valve 11. It also contains the control valve 18, the mouth of which can be closed by the membrane 20 or a closing member actuated by the membrane 20.
  • the outer chamber 21 is connected via a line 25 to a control member 26, for example in the form of a valve assembly 27.
  • the line 25 forms a control input for acting on the adjusting device with a pressure signal, in this case a reference pressure signal.
  • the valve assembly 27 is formed in the present embodiment by a 3/2-way valve 28 (2 positions, 3 connections). This 3/2-way valve may be connected to an electrical, electromagnetic or other actuating mechanism. This is controlled via an electrical line by a control unit 29, for example in the form of an automatic burner or by another electrical circuit, such as a Hochnapsszündscrien 30, which in turn may be controlled by the control unit 29.
  • the Hochnapsszündscrien 30 is used for Generating electrical flashovers between a firing electrode 31 and the surface burner 3 for firing it at a selected location.
  • the control unit 29 is connected via a line 32 to a signal generator, which supplies, for example, a heat request signal.
  • the control unit 29 may further with the blower, in particular with a FIG. 4 be visible blower motor M connected to the blower power or speed or the mass flow promoted by the blower targeted to influence.
  • the 3/2-way valve 28 serves to connect the line 25 alternatively via a port 33 ambient air pressure, i. a first pressure level and via a line 34 with a second pressure level, for example, to connect the blower outlet pressure on the line 6.
  • FIG. 4 To further illustrate the operating device 1 is on FIG. 4 referenced, in particular the fan 5 illustrates. It has the motor M, on the shaft of a fan 35 sits. At the periphery of the blower housing 36, the line 6 connects, via which a gas / air mixture is fed to the burner 3. Centrally approximately centrally of the blower housing 36, a jet pump or Venturian Aunt 37 is provided. Radially to this air is sucked by the fan 5.
  • the venturi arrangement 37 has a diffuser 38. In front of the diffuser 38 is an air-suction channel 39. At the air-suction channel 39, a gas nozzle 40 is provided, is provided at the valve 11 via the gas at a given pressure. Immediately before the nozzle 40, the line 23 takes the gas pressure.
  • control unit 29 activates the Hochnapsszündscrien 30 to generate spark flashes on the ignition electrode 31. Furthermore, the control unit 29 switches the 3/2-way valve 28 in the in FIG. 1 illustrated position in which the control input 25 of the actuator 10 is connected to the fan output on line 6. As a result, the outer chamber 21 of the pressure box 19 receives a reference pressure which is above the atmospheric air pressure. Accordingly, the control valve 18 closes something, whereby the pressure in the working chamber 16 is increased and the valve 11 is opened further. An increased gas pressure is now applied to the nozzle 40, which leads to an increased gas supply and thus to an enrichment of the gas / air mixture. The burner 3 ignites soft and, above all, quite quickly over the entire surface.
  • the control unit 29 changes over from ignition operation to regular operation. For this purpose, it deactivates the Hochwoodszündscrien 30 and switches the 3/2-way valve 28 so that the line 25 and the control input of the actuator 10 is connected to the terminal 33.
  • the outer chamber 21 is connected to the ambient air pressure.
  • the pressure relief of the outer chamber 21 causes now an adjustment of the gas pressure regulator 9 to a lower gas pressure, whereby the amount of gas supplied via the nozzle 40 is reduced. The result is a leaner mixture and the burner 3 goes into its normal operation.
  • the power of the burner 3 may be e.g. be controlled by the fan speed. As the fan speed increases, so too does the suction on the venturi assembly 37 and on the nozzle 40. Because the gas pressure regulator 9 keeps the gas pressure constant, the amount of gas discharged through the nozzle 40 increases. The performance of the burner 3 can thereby be changed in a wide range in the ideal case, in the ratio of up to 1:10.
  • FIG. 3 illustrates a modified embodiment of the valve assembly 27.
  • two individual open / close valves 28a, 28b are provided.
  • Valve 28a connects line 25 to ambient air pressure port 33 while valve 28b connects line 25 to line 34.
  • the valves 28a, 28b are opened or closed alternately. When ignited, the valve 28b is open. In normal operation, the valve 28a is open.
  • the control input of the adjusting device 10 may be formed instead of the line 25 in other ways.
  • the control input can be formed by the electrical actuating connection of the valve arrangement 27, which thus becomes part of the adjusting device 10.
  • the control input can also be the electrical connection of an electrically operated or controlled valve, which releases a bypass channel to the throttle 17 or adjusts the throttle 17 to change the pressure of the gas pressure regulator.
  • an operating device 1 is provided, which is adapted to greasing the supplied gas / air mixture when igniting the burner 3.
  • the enrichment is achieved by switching a reference pressure supplied to the actuator 10. This is preferably the ambient air pressure during normal operation while it is preferably an increased air pressure in the ignition mode, which pre-mirrors the actuator higher air density than actually present. This is a simple way of Gemischanfettung to ignite the burner.

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  • 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)
  • Spray-Type Burners (AREA)
EP08005276.4A 2007-07-12 2008-03-20 Dispositif de fonctionnement pour un brûleur de surface haute performance et son procédé de fonctionnement Withdrawn EP2014979A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200710032483 DE102007032483A1 (de) 2007-07-12 2007-07-12 Betriebseinrichtung für einen Oberflächenbrenner hoher Leistung und Betriebsverfahren für diesen

Publications (2)

Publication Number Publication Date
EP2014979A2 true EP2014979A2 (fr) 2009-01-14
EP2014979A3 EP2014979A3 (fr) 2014-03-05

Family

ID=39743820

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08005276.4A Withdrawn EP2014979A3 (fr) 2007-07-12 2008-03-20 Dispositif de fonctionnement pour un brûleur de surface haute performance et son procédé de fonctionnement

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Country Link
EP (1) EP2014979A3 (fr)
DE (1) DE102007032483A1 (fr)

Cited By (23)

* Cited by examiner, † Cited by third party
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
ITUB20152343A1 (it) * 2015-07-21 2017-01-21 Polidoro Spa Caldaia a gas ad elevato rapporto di modulazione
US9557059B2 (en) 2011-12-15 2017-01-31 Honeywell International Inc Gas valve with communication link
US9645584B2 (en) 2014-09-17 2017-05-09 Honeywell International Inc. Gas valve with electronic health monitoring
US9683674B2 (en) 2013-10-29 2017-06-20 Honeywell Technologies Sarl Regulating device
US9835265B2 (en) 2011-12-15 2017-12-05 Honeywell International Inc. Valve with actuator diagnostics
US9841122B2 (en) 2014-09-09 2017-12-12 Honeywell International Inc. Gas valve with electronic valve proving system
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
US20180058689A1 (en) * 2016-08-31 2018-03-01 Honeywell International Inc. Air/gas admittance device for a combustion appliance
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
US10422531B2 (en) 2012-09-15 2019-09-24 Honeywell International Inc. System and approach for controlling a combustion chamber
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
US10697815B2 (en) 2018-06-09 2020-06-30 Honeywell International Inc. System and methods for mitigating condensation in a sensor module
US11073281B2 (en) 2017-12-29 2021-07-27 Honeywell International Inc. Closed-loop programming and control of a combustion appliance
USD960321S1 (en) 2019-06-11 2022-08-09 Karl Dungs Gmbh & Co. Kg Venturi signal amplifier

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004038673B3 (de) 2004-08-09 2006-03-30 Karl Dungs Gmbh & Co. Kg Servodruckregler

Family Cites Families (4)

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EP0644377B1 (fr) * 1993-09-16 1996-10-23 Honeywell B.V. Dispositif de commande pour brûleur à gaz
FR2775782B1 (fr) * 1998-03-06 2000-05-05 Theobald Sa A Dispositif de mesure de pression differentielle et dispositif pour la regulation active du rapport air/gaz d'un bruleur utilisant un tel dispositif de mesure
DE10006600B4 (de) * 2000-02-15 2004-02-26 Hans-Jochen Dr. Schwarz Gasventil und Verfahren zum Betrieb eines Gasventils
DE10340045A1 (de) * 2003-08-28 2005-03-24 Karl Dungs Gmbh & Co. Kg Verhältnisregler mit dynamischer Verhältnisbildung

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004038673B3 (de) 2004-08-09 2006-03-30 Karl Dungs Gmbh & Co. Kg Servodruckregler

Cited By (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9835265B2 (en) 2011-12-15 2017-12-05 Honeywell International Inc. Valve with actuator diagnostics
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
US9995486B2 (en) 2011-12-15 2018-06-12 Honeywell International Inc. Gas valve with high/low gas pressure detection
US8839815B2 (en) 2011-12-15 2014-09-23 Honeywell International Inc. Gas valve with electronic cycle counter
US10851993B2 (en) 2011-12-15 2020-12-01 Honeywell International Inc. Gas valve with overpressure diagnostics
US9557059B2 (en) 2011-12-15 2017-01-31 Honeywell International Inc Gas valve with communication link
US10697632B2 (en) 2011-12-15 2020-06-30 Honeywell International Inc. Gas valve with communication link
US9851103B2 (en) 2011-12-15 2017-12-26 Honeywell International Inc. Gas valve with overpressure diagnostics
US9846440B2 (en) 2011-12-15 2017-12-19 Honeywell International Inc. Valve controller configured to estimate fuel comsumption
US9234661B2 (en) 2012-09-15 2016-01-12 Honeywell International Inc. Burner control system
US9657946B2 (en) 2012-09-15 2017-05-23 Honeywell International Inc. Burner control system
US11421875B2 (en) 2012-09-15 2022-08-23 Honeywell International Inc. Burner control system
US10422531B2 (en) 2012-09-15 2019-09-24 Honeywell International Inc. System and approach for controlling a combustion chamber
US9683674B2 (en) 2013-10-29 2017-06-20 Honeywell Technologies Sarl Regulating device
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
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
US10203049B2 (en) 2014-09-17 2019-02-12 Honeywell International Inc. Gas valve with electronic health monitoring
CN108139074B (zh) * 2015-07-21 2019-11-05 波利多罗有限公司 具有高调节比的燃气锅炉
CN108139074A (zh) * 2015-07-21 2018-06-08 波利多罗有限公司 具有高调节比的燃气锅炉
US10801721B2 (en) 2015-07-21 2020-10-13 Polidoro S.P.A. Gas-fired boiler having a high modulation ratio
WO2017013596A1 (fr) * 2015-07-21 2017-01-26 Polidoro S.P.A. Chaudière à gaz ayant un rapport de modulation élevé
ITUB20152343A1 (it) * 2015-07-21 2017-01-21 Polidoro Spa Caldaia a gas ad elevato rapporto di modulazione
US10503181B2 (en) 2016-01-13 2019-12-10 Honeywell International Inc. Pressure regulator
US10274195B2 (en) * 2016-08-31 2019-04-30 Honeywell International Inc. Air/gas admittance device for a combustion appliance
US20180058689A1 (en) * 2016-08-31 2018-03-01 Honeywell International Inc. Air/gas admittance device for a combustion appliance
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
USD960321S1 (en) 2019-06-11 2022-08-09 Karl Dungs Gmbh & Co. Kg Venturi signal amplifier

Also Published As

Publication number Publication date
EP2014979A3 (fr) 2014-03-05
DE102007032483A1 (de) 2009-01-22

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