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WO2015090918A1 - Système de brûleur pour un système de co-génération à combustion externe - Google Patents

Système de brûleur pour un système de co-génération à combustion externe Download PDF

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Publication number
WO2015090918A1
WO2015090918A1 PCT/EP2014/076102 EP2014076102W WO2015090918A1 WO 2015090918 A1 WO2015090918 A1 WO 2015090918A1 EP 2014076102 W EP2014076102 W EP 2014076102W WO 2015090918 A1 WO2015090918 A1 WO 2015090918A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat exchanger
burner
fuel
heat
air
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.)
Ceased
Application number
PCT/EP2014/076102
Other languages
German (de)
English (en)
Inventor
Kai Pecka
Christian Greifelt
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
Priority to EP14808915.4A priority Critical patent/EP3084302A1/fr
Publication of WO2015090918A1 publication Critical patent/WO2015090918A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • F23D14/66—Preheating the combustion air or gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
    • F23K5/00—Feeding or distributing other fuel to combustion apparatus
    • F23K5/02—Liquid fuel
    • F23K5/14—Details thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
    • F23K5/00—Feeding or distributing other fuel to combustion apparatus
    • F23K5/02—Liquid fuel
    • F23K5/14—Details thereof
    • F23K5/20—Preheating devices
    • 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
    • F23L15/00—Heating of air supplied for combustion
    • F23L15/04—Arrangements of recuperators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2208/00—Control devices associated with burners
    • F23D2208/005—Controlling air supply in radiant gas burners
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery

Definitions

  • the invention relates to a burner system for a cogeneration system with external combustion.
  • Combined heat and power systems are used to simultaneously heat buildings and generate electricity. They can be constructed from a heat engine that drives a generator to generate electricity.
  • the waste heat of the heat engine is used for heating purposes.
  • the heat engine may be an external combustion engine, such as a Stirling engine, or a thermoacoustic generator. In these cases, the heat engine has a heat sink to be heated by a burner system. It is energetically advantageous if the burner system generates the highest possible temperature in a spatially narrow range.
  • premixing burners For combined heat and power systems come as burners that are part of a burner system, premixing burners or diffusion burners in question. Diffusion burners have the advantage that the residual heat in the exhaust gas can be fully used to preheat the combustion air. Such burners are known as recuperation burners. The preheating of the combustion air-fuel mixture is only very limited possible with a premixing burner, since the fuel-air mixture would ignite prematurely from the ignition temperature itself.
  • recuperation burners for the heating of furnaces are known from the prior art.
  • the patent application DE 101 49 329 A1 discloses a recuperation burner with a compact combustion chamber.
  • the air required for the combustion is conducted through pipes from an air chamber to the combustion chamber. These are channels through which the air passed is arranged so that a heat exchanger is formed, which transfers the heat from the exhaust gases to the air.
  • the fuel is supplied to the combustion chamber from a fuel chamber provided opposite the combustion chamber through pipes provided coaxially within the pipes for the air.
  • this burner can locally generate a high temperature due to the compact combustion chamber, but due to the large heat exchanger in areas that are not associated with the combustion chamber, considerable amounts of heat from. In a compact heat exchanger, the heat conduction and the heat transfer is lower.
  • a fuel channel system which comprises a fuel chamber which extends in an insulating manner around the areas from which no heat is to be passed to the outside.
  • the advantage is that the construction volume, which serves to supply the fuel to the combustion chamber, is also used as insulation.
  • the fuel is preferably a fuel gas, but according to the invention may also be a liquid fuel.
  • Another advantage is that the fuel flowing through the fuel chamber dissipates the heat loss and thus the outer wall of the fuel chamber is additionally cooled.
  • the burner according to the invention has the advantage that in addition to the air and the fuel is preheated and thus leads to an increase in efficiency.
  • the burner system according to the invention is advantageously used in a combined heat and power system. Also, the burner system of the present invention can be advantageously used in a thermal heat pump system.
  • FIG. 1 the burner system according to the invention for a cogeneration system
  • FIG. 2 the detail X of the burner system from FIG. 1
  • FIG. 3 the detail Y of the burner system from FIG.
  • FIGS 1 to 3 show a burner system according to the invention.
  • the burner system comprises a burner 1 and a heat sink 2.
  • the heat sink 2 is connected to a heat engine with external combustion, for example a Stirling engine or a thermoacoustic generator, or is part of the heat engine.
  • the heat engine not shown here converts the heat energy into mechanical and then into electrical energy.
  • the burner system and the heat engine together with a generator connected to the heat engine forms a combined heat and power system.
  • the burner system comprises a fuel channel system 3, an air channel system 4 and an exhaust gas channel system 5.
  • the fuel channel system 3 and the air channel system 4 are provided within the burner 1, the exhaust gas channel system 5 also extends to the heat sink 2.
  • the burner 1 shown in the embodiment is constructed cylindrical. However, other designs are possible and included according to the invention.
  • the air required for the combustion or another oxygen-containing gas is supplied to the air duct system 4 from the outside.
  • the inflowing air is initially distributed in the air chamber, which is arranged on the opposite side of the heat sink of the burner.
  • the air is distributed to a plurality of tubes 14, which guide the air from density and through the heat exchanger chamber 8.
  • the tubes 14 and the heat exchanger chamber 8 form a second heat exchanger 7.
  • the supplied air absorbs the heat of the exhaust gas.
  • the second heat exchanger 7 is also cylindrical.
  • the fuel required for the combustion is supplied from the outside of the fuel channel system 3.
  • the fuel flows into a fuel chamber 12 enclosing the second heat exchanger 7. Due to the fact that the fuel chamber 12 surrounds the second heat exchanger 7 in the region of the cylinder jacket and the air chamber 13 surrounds the second heat exchanger 7, the second heat exchanger 7 is thermally insulated from the surroundings of the burner 1.
  • a transfer of heat from the second heat exchanger 7 to the environment is reduced by the fact that air or are passed through the chambers and additionally dissipate heat.
  • the tubes 14 are led out of the second heat exchanger 7 on the side of the heat sink and terminate immediately before the combustion chamber 9.
  • the combustion chamber 9 is closed in the direction of the second heat exchanger 7 of a nozzle plate 1 1, which has a plurality of openings 15.
  • the fuel from the fuel chamber 12, which adjoins the nozzle plate 11 on the opposite side can flow into the combustion chamber 9 through these openings 15.
  • the exhaust gases are passed from the combustion chamber 9.
  • the exhaust gases first flow through several part channels to the heat sink, where they form a first heat exchanger 6.
  • the heat of the exhaust gases is transferred to the heat sink 2.
  • the exhaust gases are deflected and returned in the direction of the combustion chamber, sealingly passed through the combustion chamber by means of a combustion chamber 10 with respect to the combustion chamber and passed into the fuel chamber 12 of the second heat exchanger 7 to transfer the remaining heat to the air flowing through the tubes 14.
  • the exhaust gases are then passed through a connection to the outside and discharged via an exhaust system, not shown here.
  • the construction according to the invention provides a very efficient and at the same time very compact burner system.
  • it can be composed very easily from perforated sheets and tubes, so that the burner system is very easy to produce.
  • the second heat exchanger 7 can be formatted and installed in a part 18, which is then inserted into the upper part 17.
  • the upper part 17 in turn can be easily flanged to the heat sink 6.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gas Burners (AREA)

Abstract

Système de brûleur pour un système de co-génération à combustion externe. Ledit système de brûleur comporte un brûleur de diffusion (1). Dans un deuxième échangeur de chaleur (7), la chaleur des gaz d'échappement est transférée à l'air introduit. Le deuxième échangeur de chaleur (7) est en outre isolé de l'environnement à l'aide d'une chambre à carburant qui entoure le deuxième échangeur de chaleur. De plus, le combustible en circulation dissipe la chaleur.
PCT/EP2014/076102 2013-12-16 2014-12-01 Système de brûleur pour un système de co-génération à combustion externe Ceased WO2015090918A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP14808915.4A EP3084302A1 (fr) 2013-12-16 2014-12-01 Système de brûleur pour un système de co-génération à combustion externe

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA962/2013 2013-12-16
ATA962/2013A AT515221A1 (de) 2013-12-16 2013-12-16 Brennersystem für ein Kraft-Wärme-Kopplungssystem mit externer Verbrennung

Publications (1)

Publication Number Publication Date
WO2015090918A1 true WO2015090918A1 (fr) 2015-06-25

Family

ID=52014049

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2014/076102 Ceased WO2015090918A1 (fr) 2013-12-16 2014-12-01 Système de brûleur pour un système de co-génération à combustion externe

Country Status (3)

Country Link
EP (1) EP3084302A1 (fr)
AT (1) AT515221A1 (fr)
WO (1) WO2015090918A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014224086A1 (de) 2014-11-26 2016-06-02 Vaillant Gmbh Brenner

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0324043A1 (fr) * 1988-01-15 1989-07-19 WS Wärmeprozesstechnik GmbH Brûleur industriel avec préchauffage de l'air, en particulier pour chauffer les chambres des fours industriels
EP0685683A2 (fr) * 1994-06-02 1995-12-06 Joachim Dr.-Ing. Wünning Brûleur industriel à faible émission de NOx
EP1355111A2 (fr) * 2002-04-19 2003-10-22 WS-Wärmeprozesstechnik GmbH Brûleur à orifices latéraux pour la combustion sans flamme

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3202938A1 (de) * 1981-11-06 1983-05-19 Feraton Anstalt, 9494 Schaan Verfahren und vorrichtung zum erhitzen von verbrennungsluft und brennstoff in heizungsanlagen
DE19947294A1 (de) * 1999-10-01 2001-04-19 Mika Heiztechnik Gmbh Heizkessel

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0324043A1 (fr) * 1988-01-15 1989-07-19 WS Wärmeprozesstechnik GmbH Brûleur industriel avec préchauffage de l'air, en particulier pour chauffer les chambres des fours industriels
EP0685683A2 (fr) * 1994-06-02 1995-12-06 Joachim Dr.-Ing. Wünning Brûleur industriel à faible émission de NOx
EP1355111A2 (fr) * 2002-04-19 2003-10-22 WS-Wärmeprozesstechnik GmbH Brûleur à orifices latéraux pour la combustion sans flamme

Also Published As

Publication number Publication date
AT515221A1 (de) 2015-07-15
EP3084302A1 (fr) 2016-10-26

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