EP2413031B1 - Dispositif de combustion à prémélange - Google Patents

Dispositif de combustion à prémélange Download PDF

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Publication number
EP2413031B1
EP2413031B1 EP10170814.7A EP10170814A EP2413031B1 EP 2413031 B1 EP2413031 B1 EP 2413031B1 EP 10170814 A EP10170814 A EP 10170814A EP 2413031 B1 EP2413031 B1 EP 2413031B1
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EP
European Patent Office
Prior art keywords
blower
outlet opening
combustion
throughflow
combustion device
Prior art date
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Active
Application number
EP10170814.7A
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German (de)
English (en)
Other versions
EP2413031A1 (fr
Inventor
Gerhard Werle
Günther Köb
Markus Telian
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.)
Hoval AG
Original Assignee
Hoval AG
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 Hoval AG filed Critical Hoval AG
Priority to EP10170814.7A priority Critical patent/EP2413031B1/fr
Priority to ES10170814.7T priority patent/ES2474417T3/es
Priority to CA2747176A priority patent/CA2747176C/fr
Priority to JP2011161644A priority patent/JP6042601B2/ja
Priority to US13/189,930 priority patent/US9052108B2/en
Priority to CN201110214537.4A priority patent/CN102345877B/zh
Publication of EP2413031A1 publication Critical patent/EP2413031A1/fr
Application granted granted Critical
Publication of EP2413031B1 publication Critical patent/EP2413031B1/fr
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Anticipated expiration legal-status Critical

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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
    • F23D14/46—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
    • F23D14/34—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
    • 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
    • F23L3/00—Arrangements of valves or dampers before the fire
    • 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
    • F23N1/025—Regulating fuel supply conjointly with air supply using electrical or electromechanical means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C2900/00—Special features of, or arrangements for combustion apparatus using fluid fuels or solid fuels suspended in air; Combustion processes therefor
    • F23C2900/99006—Arrangements for starting combustion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2227/00—Ignition or checking
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2227/00—Ignition or checking
    • F23N2227/02—Starting or ignition cycles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2235/00—Valves, nozzles or pumps
    • F23N2235/02—Air or combustion gas valves or dampers
    • F23N2235/06—Air or combustion gas valves or dampers at the air intake

Definitions

  • the invention is directed to a premixing combustion device for a boiler, comprising a combustion cylinder, a mixing device and a blower which conveys a combustion mixture of fuel and air from an outlet opening of the blower via the combustion cylinder to a combustion zone, wherein the mixing device arranged upstream of the blower the combustion mixture is treated and provided between the outlet opening of the fan and the combustion cylinder flow reduction device is provided with a flow reduction, wherein the flow reduction between an outlet opening of the blower opening position and the outlet opening of the fan decreasing position is adjustable.
  • the invention is directed to a method for starting a premixing combustion device for a boiler, wherein a formed from fuel and air combustion mixture is processed by a mixing device arranged upstream of a fan and conveyed from an outlet opening of the blower, the combustion mixture via a combustion cylinder to a combustion zone becomes.
  • a premixing combustion device and a method of the type mentioned are, for example EP 1 083 386 A1 , which discloses the preamble of independent claims 1 and 6, known, wherein from the EP 896 191 A2 a device for introducing fuel gas into an air stream is known, which comprises a swirl generating device.
  • a burner system with two burners which fuel gas is supplied via a first supply line with the interposition of a first, the pressure and the amount of regulating gas valve. After flowing through the first, the flow regulating gas valve, the fuel gas is supplied to a fan and mixed there with air, so that a combustible gas-air mixture is generated. Via a second, dividing supply line, in which volume flow or pressure control elements provided in the form of valves, the mixture is supplied to the two burners.
  • a conveying device for introducing a fuel gas air mixture into a combustion chamber is known from EP 1 241 409 A2 known.
  • the delivery device comprises a fan and a throttle arranged downstream of the fan in the flow line between the fan and the combustion chamber.
  • a control device for a fan-assisted gas or oil-fired burner is known from GB 1,175,787A known.
  • the control device comprises a damper control means for moving an air damper to ventilate a combustion chamber, the damper being at least partially closed for ignition.
  • a flow control of the combustion air for an oil burner which has a metering flap inserted into the air line, is from the US 2,603,411 A1 and the DE 43 16 315 A1 known, wherein the metering flap regulates only the amount of the combustion chamber supplied combustion air.
  • a fan burner and a method for starting the fan burner is known, in which a combustion air fraction is supplied, which is less than the intended for the subsequent combustion process target air content to provide a good ignitable mixture at start.
  • Boilers with premixing combustion devices are known from the prior art and are used for heating of heating and / or service water in buildings and homes.
  • the hot combustion gases in heat exchanger tubes are passed through the heating and / or service water located in the boilers.
  • the combustion exhaust gas cools down and finally condenses.
  • the heat of condensation of the water vapor in the combustion exhaust gas is also utilized, whereby the energy content of the fuel used is almost completely utilized.
  • the start of the combustion device is a particularly critical phase in which ignition problems of the combustion mixture can occur. It is well known to reduce the amount of air in a combustor-operated combustor during a start-up phase so that the fuel-oversaturated combustible mixture can be safely detonated. Furthermore, regulators are known from the prior art in which during a starting phase of the combustion device, the amount of air reduced and / or the amount of fuel is increased, this process is repeated cyclically while changing the combustion mixture until a reliable ignition occurs. The measures of reducing the proportion of air and / or increasing the proportion of fuel serve primarily the purpose of being able to operate a boiler in continuous operation as low as possible, the measures are also used during the starting phase of boilers.
  • the disadvantage of the known measures is therefore that the combustion mixture is always set immediately to the value of a required target heat output and reduced during the starting phase of the target air content or the target gas content is increased, resulting in increased emissions of pollutants ,
  • the ignitable combustion mixture flows during the start phase almost abruptly in a combustion zone, so that the ignition represents a jump into the load operation inside. This process leads to undesirable pressure surges or pulsations in the combustion chamber of the boiler and can lead to disturbances of the combustion device.
  • the invention has for its object to provide a solution in a premixing combustion device of the type described above, which ensures a safe start of the boiler and prevents interference in a structurally simple manner.
  • this object is achieved according to the invention solved, that the flow reduction element at the start of the combustion device in the outlet opening of the blower decreasing position can be arranged and after ignition of the combustion mixture in the outlet opening of the blower opening position can be arranged, and that the flow reduction has an adjusting means which is coupled to the combustion device such in that the actuating means only moves the flow-reducing element from the position which opens the outlet opening of the blower into the position reducing the outlet opening of the blower during the ignition phase.
  • the above object is achieved in a method of the type described, characterized in that simultaneously with the start of the combustion device arranged between the outlet opening of the fan and the combustion cylinder flow reduction of a flow reduction device from the outlet opening of the blower opening or releasing position in a the outlet opening of the Blower reducing position is moved.
  • the invention provides a possibility with which a reliable ignition of the combustion mixture is ensured in a pre-mixing combustion device in a structurally simple manner.
  • the pressure and the speed of the combustion mixture flowing toward the combustion cylinder can be regulated or controlled at the start of the premixing combustion device by changing the cross section of the outlet opening of the blower, so that conditions for reliable ignition are given. Due to the possibility of controlling or controlling the ignition conditions, a "soft" or “gentle” start of the combustion device is possible, so that pulsations can be prevented in the starting phase.
  • the regulation or control of the ignition conditions also ensures in difficult chimney conditions of the Exhaust gas channels for a safe start of the combustion device.
  • the remaining cross section of the outlet opening is 15% to 45% of the cross section of the outlet opening in the open position of the flow reduction element.
  • the invention provides in a further development of the method, that in the position of the flow reduction element reducing the outlet opening of the blower, the remaining cross section of the outlet opening is reduced to 15% to 45% of the cross section of the outlet opening when the flow reduction element is open.
  • the cross section of the outlet opening of the fan is thus reduced by the flow reduction element, namely by 55% to 85% of the actual cross section of the outlet opening.
  • the remaining cross-section of the outlet opening of the blower is reduced to 30%, whereby a higher blower pressure and a lower flow rate of the combustion mixture are achieved in the combustion zone.
  • the invention further provides that the flow-reducing element is a rotatably mounted flap element.
  • the flow-reducing element is a rotatably mounted flap element. This can be opened up structurally simple way to achieve a change in the flow cross-section of the outlet opening through which the combustion mixture flows and to control or regulate the ignition conditions.
  • the invention is not limited to a flow-reducing element in the form of a flap element. Rather, those skilled in the art will recognize that alternative embodiments are conceivable for this purpose, which cause a change in the flow rate.
  • the flow-reducing element could also be designed as a gate valve.
  • the flow reduction element is in the position opening the outlet opening of the blower.
  • the invention provides in an embodiment that the flow rate device has a return element which applies a force urging the flow rate reduction element into the position opening or releasing the outlet opening of the blower.
  • a restoring element can be designed, for example, in the form of a return spring, which pretensions or holds the flow-reducing element in the position releasing the outlet opening of the blower.
  • the flow-reducing element is located only in the starting phase of the combustion device or only during the ignition phase of the combustion mixture in the position reducing the outlet opening of the blower.
  • the actuating means is an electromagnet which is coupled to the combustion device in such a way that, at the time of starting the combustion device, the flow-reducing element is moved out of the position opening the outlet opening of the blower moved the outlet opening of the blower reducing position against the force of the return element.
  • the solenoid for example, with an ignition control of Combustion device coupled.
  • the ignition control ensures that voltages are applied in parallel or simultaneously both to an ignition transformer for activating the ignition electrode and to the electromagnet, so that the electromagnet is activated at the same time as ignition in order to cause the position of the flow reduction element to change.
  • the flow-reducing device may have another suitable adjusting means to change the position or position of the flow-reducing element.
  • an electric motor coupled to the ignition control or a pneumatic control means coupled to the ignition control could be used to move the flow reduction element from the position opening the outlet opening of the blower to the position reducing the outlet opening of the blower and back again only during the ignition phase.
  • the invention provides in a further development of the method that after starting the combustion device, i. after the successful start phase or successful ignition of the combustion mixture, the flow reduction element is moved from the position reducing the outlet opening of the blower into the position releasing the outlet opening of the blower. The reduction of the outlet opening of the fan is therefore only a measure that is taken at the time of startup. Once the combustion mixture is ignited, the entire or actual cross section of the outlet opening of the fan is released again.
  • Premixing combustion device 1 for a boiler, not shown, which may be designed as a condensing boiler comprises a fan 2, which promotes a composite of fuel (for example gas) and air combustion mixture to a combustion zone, not shown in the figures.
  • the blower 2 is mounted on a so-called burner door 6, which is held for maintenance and cleaning purposes by means of a holding device 7 pivotally.
  • the combustion mixture is processed in a mixing device 3 arranged upstream of the blower 2, which is designed in the form of a Venturi tube and is conveyed through the air or combustion air.
  • a laterally opening into the mixing device 3 supply line 4 combustion gas is supplied to the air, wherein the proportion of the gas is adjustable by a valve 5. Homogenization of the combustion mixture is achieved by intensive mixing within the blower 2.
  • the combustion mixture of combustion gas and combustion air passes through an outlet opening 8 of the blower 2, the closer in FIG. 2 is shown in a arranged below the blower 2 and extending vertically below the combustion cylinder 9.
  • the combustion mixture located in the combustion cylinder 9 then does not occur radially shown passage openings of the combustion cylinder 9 from this and flows into a combustion zone in which the combustion mixture is ignited in the starting phase of the combustion device 1 by means of a radially spaced from the combustion cylinder 9 ignition electrode.
  • the flame monitoring is carried out with an ionization electrode also arranged outside the combustion cylinder 9 in a manner known from the prior art.
  • the premixing combustion device 1 further includes a flow reduction device 10 disposed between the exhaust port 8 of the blower 2 and the combustion cylinder 9.
  • the in the FIGS. 3 and 4 shown flow reduction device 10 comprises a slide-in plate 11 which is arranged between the outlet opening 8 of the blower 2 the combustion cylinder 9 and there fastened or mounted on corresponding flange portions of the blower 2 and the combustion cylinder 9.
  • the insertion plate 11 has a passage opening 12, which corresponds to the cross section of the outlet opening 8 of the blower 2.
  • a flow-reducing element 13 is arranged in the form of a shut-off flap.
  • the flow reduction element 13 is connected to a drive shaft 14 in a rotationally fixed manner and rotatably supported by means of this in the passage opening 12 of the insertion plate 11.
  • the cross section through which the combustion mixture flows can be changed, whereby the pressure and speed of the combustion mixture flowing to the combustion cylinder 9 can be regulated or controlled.
  • the flow-reducing element can alternatively also be arranged directly in the outlet opening 8 of the blower 2 and stored there, so that the component of the slide-in plate 11 would be dispensable.
  • the rotatably mounted flow-reducing element 13 is adjustable between a position opening the outlet opening 8 of the blower 2 and a position reducing the outlet opening 8 of the blower 2.
  • the flow reduction element 13 is arranged in the position reducing the outlet opening 8 of the blower 2 and, in this position, reduces the cross section through which the combustion mixture flows.
  • the outlet opening 8 is not completely closed, but only partially blocked by the flow reduction element 13.
  • the free cross section of the outlet opening 8 is approximately 15% to 45% of the cross section of the outlet opening 8 in the open position of the flow reducing element 13.
  • the height of the reduction of the cross section of the outlet opening 8 is dependent on the size or performance of the boiler, wherein a reduction of the remaining free cross section of the outlet opening 8 has proven to be about 30% of the cross section of the outlet opening 8 as particularly favorable during the start phase of the boiler.
  • the flow-reducing element 13 When the combustion device 1 is started, the flow-reducing element 13 is thus arranged in the position reducing the outlet opening 8 of the blower 2. After successful ignition of the combustion mixture then the flow reduction element 13 into which the outlet opening 8 of Rotated blower 2-opening position, so that the combustion mixture conveyed by the blower 2 flows to the combustion cylinder 9 essentially without an impairment exerted by the flow reduction element 13 and pressure and velocity of the combustion mixture are determined solely by the blower 2.
  • the change of the position of the flow reduction element 13 into the outlet opening 8 of the blower 2 opening position is effected by a return element, not shown.
  • the restoring element can be designed, for example, in the form of a spring element which applies a force by means of which the flow-reducing element 13 is forced into the position opening the outlet opening 8 of the blower 2.
  • the flow reduction device 10 has an electromagnet 15, which is arranged laterally from the blower 2 and coupled to the flow reduction device 10.
  • the electromagnet 15 is connected via a lever mechanism 16 with a projecting from the insertion plate 11 end of the drive shaft 14 and also coupled control technology with the combustion device 1 or its ignition control.
  • this coupling causes a voltage to be applied to the electromagnet 15 in parallel with the activation of the ignition electrode, thereby moving a fork head 17, coupled to the lever mechanism 16, of the electromagnet 15 designed in the manner of a lifting magnet.
  • the parallel application of a voltage to ignition electrode and electromagnet 15 can be done for example by an ignition transformer 18 which is coupled to both components.
  • the flow-reducing element 13 from the outlet opening 8 of the blower 2 opening position in the the outlet opening 8 of Blower 2 reducing position moves against the force of the return element, which finally reduces the remaining free cross section of the outlet opening 8 of the blower.
  • the restoring element urges the flow rate reducing element 13 into the position opening the outlet opening 8 of the blower 2, so that the outlet opening 8 of the blower 2 is essentially free and the combustion mixture can flow through unhindered.
  • the flow-reducing device can also have another suitable adjusting means, which changes the position of the flow-reducing element signal-dependent and / or voltage-dependent on the combustion device or its ignition control.
  • an electric motor or a pneumatic adjusting means could be used to move the valve designed as a flow reduction element, the activation of the electric motor or the pneumatic actuator may be coupled with the combustion device 1 or its ignition control control technology.
  • the combustion mixture formed from fuel or combustion gas and combustion air is conditioned by the mixing device 3 arranged upstream of the blower 2.
  • the conditioned combustion mixture is then conveyed by means of the blower 2 from the outlet opening 8 via the combustion cylinder 9 to the combustion zone.
  • the flow reduction element 13 of the flow reduction device 10 arranged between the outlet opening 8 of the blower 2 and the combustion cylinder 9 is moved from the position opening the outlet opening 8 of the blower 2 into the position reducing the outlet opening 8 of the blower 2, in which case the remaining cross section of the outlet opening 8 to 15% to 45%, preferably 30%, the cross-section of the outlet opening 8 is reduced in the open position of the flow reduction 13.
  • the flow reduction element 13 is then moved out of the position reducing the outlet opening 8 of the blower 2 into the position releasing the outlet opening 8 of the blower 2. In this way, pulsations could be avoided the startup phase of the boiler, which can otherwise lead to disturbances.

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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)
  • Air Supply (AREA)

Claims (8)

  1. Dispositif de combustion à prémélange (1) pour une chaudière, qui comprend un cylindre de combustion (9), un dispositif de chauffage (3) et un ventilateur (2), qui transporte un mélange de combustion composé d'un combustible et d'air hors d'une ouverture d'échappement (8) du ventilateur (2) par l'intermédiaire du cylindre de combustion (9) vers une zone de combustion, dans lequel le dispositif de mélange (3) disposé en amont du ventilateur (2) prépare le mélange de combustion et un dispositif de réduction de débit (10) disposé entre l'ouverture d'échappement (8) du ventilateur (2) et le cylindre de combustion (9) est prévu avec un élément de réduction de débit (13), dans lequel l'élément de réduction de débit (13) est réglable entre une position ouvrant l'ouverture d'échappement (8) du ventilateur (2) et une position diminuant l'ouverture d'échappement (8) du ventilateur (2),
    caractérisé
    en ce que l'élément de réduction de débit (13) peut être disposé au démarrage du dispositif de combustion (1) dans la position diminuant la position d'échappement (8) du ventilateur (2) et après l'allumage du mélange de combustion peut être disposé dans la position ouvrant l'ouverture d'échappement (8) du ventilateur (2), et
    en ce que le dispositif de réduction de débit (10) présente un moyen d'ajustement, qui est couplé avec le dispositif de combustion (1) de telle sorte que le moyen d'ajustement se déplace seulement pendant la phase d'allumage de l'élément de réduction de débit (13) de la position ouvrant l'ouverture d'échappement (8) du ventilateur (2) à la position diminuant l'ouverture d'échappement (8) du ventilateur (2).
  2. Dispositif de combustion à prémélange (1) selon la revendication 1, caractérisé en ce que dans la position diminuant l'ouverture d'échappement (8) du ventilateur (2) de l'élément de réduction de débit (13), la section transversale découverte de l'ouverture d'échappement (8) correspond à 15% à 45% de la section transversale de l'ouverture d'échappement (8) en position ouverte de l'élément de réduction de débit (13).
  3. Dispositif de combustion à prémélange (1) selon une des revendications précédentes, caractérisé en ce que l'élément de réduction de débit (13) est un élément de clapet positionné rotativement.
  4. Dispositif de combustion à prémélange (1) selon une des revendications précédentes, caractérisé en ce que le dispositif de réduction de débit (10) présente un élément de rappel élastique, qui applique une force refoulant l'élément de réduction de débit (13) dans la position ouvrant l'ouverture d'échappement (8) du ventilateur (2).
  5. Dispositif de combustion à prémélange (1) selon la revendication 4, caractérisé en ce que le moyen d'ajustement est un électroaimant (15), qui est couplé au dispositif de combustion (1) de telle sorte que au démarrage du dispositif de combustion (1), l'électroaimant (15) déplace l'élément de réduction de débit (13) de la position ouvrant l'ouverture d'échappement (8) du ventilateur (2) à la position diminuant l'ouverture d'échappement (8) du ventilateur en sens inverse à la force de l'élément de rappel élastique.
  6. Procédé de démarrage d'un dispositif de combustion à prémélange (1) pour une chaudière, dans lequel un mélange de combustion formé de combustible et d'air est préparé par un dispositif de mélange (3) disposé en amont d'un ventilateur (2) et dans lequel le mélange de combustion est transporté à partir d'une ouverture d'échappement (8) du ventilateur (2) par l'intermédiaire d'un cylindre de combustion (9) jusqu'à une zone de combustion, caractérisé en ce que ponctuellement au début du dispositif de combustion (1) en élément de réduction de débit (13) d'un dispositif de réduction de débit (10), disposé entre l'ouverture d'échappement (8) du ventilateur (2) et le cylindre de combustion (9) est déplacé d'une position ouvrant l'ouverture d'échappement (8) du ventilateur (2) dans une position diminuant l'ouverture d' échappement (8) du ventilateur (2).
  7. Procédé selon la revendication 6, caractérisé en ce que dans la position diminuant l'ouverture d'échappement (8) du ventilateur (2) de l'élément de réduction de débit (13), la section transversale à découvert de l'ouverture d'échappement (8) est diminuée de 15% à 45% de la section transversale de l'ouverture d'échappement (8) quand l'élément de réduction de débit (13) se trouve en position ouverte.
  8. Procédé selon la revendication 6 ou 7, caractérisé en ce que après le démarrage du dispositif de combustion (1), l'élément de réduction de débit (13) est déplacé de la position diminuant l'ouverture d'échappement (8) du ventilateur (2) à la position découvrant l'ouverture d'échappement (8) du ventilateur (2).
EP10170814.7A 2010-07-26 2010-07-26 Dispositif de combustion à prémélange Active EP2413031B1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP10170814.7A EP2413031B1 (fr) 2010-07-26 2010-07-26 Dispositif de combustion à prémélange
ES10170814.7T ES2474417T3 (es) 2010-07-26 2010-07-26 Instalación de combustión con mezclado previo
CA2747176A CA2747176C (fr) 2010-07-26 2011-07-22 Dispositif de combustion a premelange
JP2011161644A JP6042601B2 (ja) 2010-07-26 2011-07-25 予備混合式の燃焼装置
US13/189,930 US9052108B2 (en) 2010-07-26 2011-07-25 Premixing combustion device
CN201110214537.4A CN102345877B (zh) 2010-07-26 2011-07-26 预混合式燃烧装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP10170814.7A EP2413031B1 (fr) 2010-07-26 2010-07-26 Dispositif de combustion à prémélange

Publications (2)

Publication Number Publication Date
EP2413031A1 EP2413031A1 (fr) 2012-02-01
EP2413031B1 true EP2413031B1 (fr) 2014-05-07

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EP10170814.7A Active EP2413031B1 (fr) 2010-07-26 2010-07-26 Dispositif de combustion à prémélange

Country Status (6)

Country Link
US (1) US9052108B2 (fr)
EP (1) EP2413031B1 (fr)
JP (1) JP6042601B2 (fr)
CN (1) CN102345877B (fr)
CA (1) CA2747176C (fr)
ES (1) ES2474417T3 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9464805B2 (en) 2013-01-16 2016-10-11 Lochinvar, Llc Modulating burner
CN104266186B (zh) * 2014-09-28 2017-02-01 力聚热力设备科技有限公司 一种燃气分级燃烧超低氮氧化物燃烧器
DE102016203628A1 (de) * 2016-03-07 2017-09-07 Vaillant Gmbh Rückströmsicherungsventil für ein Gebläse einer Gasarmatur
DE102017216966A1 (de) * 2017-09-25 2019-03-28 Robert Bosch Gmbh Mischeinrichtung für Heizgeräte sowie Heizgeräte mit einer solchen Mischeinrichtung

Citations (2)

* Cited by examiner, † Cited by third party
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CN102345877B (zh) 2015-09-02
CA2747176C (fr) 2017-01-03
EP2413031A1 (fr) 2012-02-01
US9052108B2 (en) 2015-06-09
JP6042601B2 (ja) 2016-12-14
ES2474417T3 (es) 2014-07-09
US20120021365A1 (en) 2012-01-26
CN102345877A (zh) 2012-02-08
JP2012026715A (ja) 2012-02-09
CA2747176A1 (fr) 2012-01-26

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