EP2008022A1 - Burner - Google Patents
BurnerInfo
- Publication number
- EP2008022A1 EP2008022A1 EP07727434A EP07727434A EP2008022A1 EP 2008022 A1 EP2008022 A1 EP 2008022A1 EP 07727434 A EP07727434 A EP 07727434A EP 07727434 A EP07727434 A EP 07727434A EP 2008022 A1 EP2008022 A1 EP 2008022A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- combustion chamber
- burner
- section
- interspace
- 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
Links
Classifications
-
- 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
- F23C3/00—Combustion apparatus characterised by the shape of the combustion chamber
- F23C3/002—Combustion apparatus characterised by the shape of the combustion chamber the chamber having an elongated tubular form, e.g. for a radiant tube
-
- 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
- F23C7/00—Combustion apparatus characterised by arrangements for air supply
- F23C7/02—Disposition of air supply not passing through burner
- F23C7/04—Disposition of air supply not passing through burner to obtain maximum heat transfer to wall of combustion chamber
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D11/00—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
- F23D11/36—Details, e.g. burner cooling means, noise reduction means
- F23D11/40—Mixing tubes or chambers; Burner heads
- F23D11/404—Flame tubes
-
- 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
- F23D14/20—Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone
- F23D14/22—Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone with separate air and gas feed ducts, e.g. with ducts running parallel or crossing each other
-
- 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
-
- 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
- F23C2900/03005—Burners with an internal combustion chamber, e.g. for obtaining an increased heat release, a high speed jet flame or being used for starting the combustion
-
- 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, particularly a burner for industrial ovens, such as ceramic ovens, ovens for baking tableware, ovens for firing sanitary fixtures, ovens for bricks .
- burners for industrial ovens comprising a burner body inside which a combustion chamber is defined, in which a fuel and air are introduced and mixed and the combustion of the so formed mixture occurs.
- the combustion chamber comprises a tubular element that is designed to protrude into the oven.
- an immersion burner for heating a liquid placed inside a tank.
- This burner comprises a burner body inside which a combustion chamber exists having the shape of a truncated cone, into which a fuel and air are introduced and mixed, to form a mixture, the combustion of which is produced inside said combustion chamber.
- the fuel is introduced into the combustion chamber through a nozzle arranged substantially on the longitudinal axis of the combustion chamber.
- Air is introduced into the burner body through an opening made in a side wall of said body and passes through an interspace existing between the burner body and the combustion chamber, before being introduced into said combustion chamber.
- the combustion chamber terminates, at a smaller diameter end thereof, with an exhaust opening, through which the combustion products of the fuel and air mixture are discharged.
- the exhaust opening is connected with a tube, which is immersed within the tank containing the liquid to be heated.
- Burners known from the prior art exhibits an unsatisfactory efficiency since a non negligible part of the heat produced by the combustion of the air and fuel mixture is designed to heat the air composing the mixture, which is introduced into the combustion chamber substantially at room temperature. This produces a flame temperature remarkably lower than the temperature theoretically obtainable, with consequent decrease of the amount of heat that can be exchanged with the material to be heated within the oven, or with the liquid in the tank, in the case of the burner described in US patent 6, 050, 809.
- the object of the present invention is to improve the efficiency of a burner for industrial ovens.
- a burner comprising a burner body, a combustion chamber into which a fuel means and air are introduced, first introducing means for introducing said fuel means into said combustion chamber, second introducing means for introducing said air into said body, through an opening of said body, characterized in that between the burner body and a first section of said combustion chamber an intermediate hollow body is interposed, which surrounds, at least for a portion of its length, said first section of the combustion chamber.
- the air introduced into the burner body, before being introduced into the combustion chamber passes in a first interspace defined between the burner body and said intermediate body and, subsequently, in a second interspace defined between the combustion chamber and the intermediate body.
- the air warms up due to the heat passing into said interspaces through the combustion chamber walls and is introduced into the combustion chamber at a temperature remarkably higher than the room temperature. That enables a higher flame temperature to be obtained, which makes more effective the heat transmission to the products that are present within the oven so improving the burner efficiency.
- Figure 1 is a longitudinal section of a burner according to the invention
- Figure 2 is a view from the left of the burner in Figure 1;
- Figure 3 is a top view of the burner in Figure 1.
- a burner 1 comprises a burner body 2 provided with a flange F for fixing to the oven wall.
- a combustion chamber 3 is fixed comprising a first section 3a, having a hollow truncated cone shape, a second section 3b, having a substantially hollow cylinder shape and a diameter equal to the minimal diameter of the truncated cone shaped section 3a, and a third section 3c having a hollow truncated cone shape, with a first end 4a connected with the second section 3b and having a diameter equal to the diameter of the second section 3b, and a second end 4b having a diameter lower than the diameter of the end 4a and extending in a short cylindrical section.
- the second section 3b and the third section 3c are designed to be inserted in a through hole made in the wall of an oven, so that the end 4b communicates with the interior of the oven, or protrudes into said oven.
- the first section 3a of the combustion chamber 3 is surrounded, for a portion of the length thereof, by an intermediate hollow body 5, for example a cylindrical body, interposed between the combustion chamber 3 and the burner body 2.
- a first interspace 6 is defined between the cylindrical hollow body 5 and the body 2 of the burner 1.
- a second interspace 7 is defined between the cylindrical hollow body 5 and the first section 3a of the combustion chamber 3.
- annular passage 8 is defined between the end 5a of the cylindrical hollow body 5 facing the flange 3 and the first section 3a of the combustion chamber 3 making the first interspace 6 and the second interspace 7 communicate with each other.
- the interspaces 6 and 7 are heated by heat coming from the combustion chamber through the walls of said chamber.
- the burner body 2 is provided with an opening 9 communicating with an air inlet conduit 10.
- the path of the air from the conduit 10 to the combustion chamber 3 is highlighted by means of arrows in Figure 1.
- the air introduced through the conduit 10 absorbs heat and warms up so that its temperature when it enters the combustion chamber is remarkably higher than the room temperature. From tests performed by the applicant the efficiency of a burner according to the invention proved to exceed the efficiency of a burner according to the prior art up to about 16%.
- the fuel is introduced into the combustion chamber through a nozzle 13, substantially aligned with the longitudinal axis of the combustion chamber and mixed with the air coming from the distributor element 12.
- the ignition of the mixture is obtained by means of ignition means 14, arranged into the combustion chamber.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Gas Burners (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT000110A ITMO20060110A1 (en) | 2006-03-31 | 2006-03-31 | BURNER |
PCT/EP2007/052962 WO2007113186A1 (en) | 2006-03-31 | 2007-03-28 | Burner |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2008022A1 true EP2008022A1 (en) | 2008-12-31 |
Family
ID=38226656
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07727434A Ceased EP2008022A1 (en) | 2006-03-31 | 2007-03-28 | Burner |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP2008022A1 (en) |
CN (1) | CN101438100B (en) |
IT (1) | ITMO20060110A1 (en) |
WO (1) | WO2007113186A1 (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006051138A1 (en) | 2006-10-30 | 2008-05-08 | J. Eberspächer GmbH & Co. KG | burner assembly |
US9080772B2 (en) | 2013-06-13 | 2015-07-14 | Delavan Inc | Continuous ignition |
US9567912B2 (en) * | 2013-06-13 | 2017-02-14 | Delavan Inc | Continuous ignition systems |
WO2016016817A1 (en) | 2014-07-29 | 2016-02-04 | Nbp S.R.L. | Burner |
CN105782971B (en) * | 2016-04-27 | 2018-11-13 | 广州宇能新能源科技有限公司 | The pre- burner of highly effective energy-conserving environmental-protecting type |
CN108534179A (en) * | 2018-06-08 | 2018-09-14 | 哈尔滨工业大学 | Burner |
CN110207147B (en) * | 2019-05-27 | 2024-04-12 | 永能动力(北京)科技有限公司 | Dry-type low-nitrogen combustion chamber |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19705552A1 (en) * | 1997-02-14 | 1998-08-20 | Alpro Aluminium Processing Gmb | Gas or oil burner |
US6050809A (en) * | 1997-09-23 | 2000-04-18 | Eclipse Combustion, Inc. | Immersion tube burner with improved flame stability |
JP3634325B2 (en) * | 2002-05-30 | 2005-03-30 | 住重機器システム株式会社 | Supersonic jet burner |
KR100543550B1 (en) * | 2003-08-25 | 2006-01-20 | (주)리메이크코리아 | Whirlpool barner |
-
2006
- 2006-03-31 IT IT000110A patent/ITMO20060110A1/en unknown
-
2007
- 2007-03-28 CN CN2007800153772A patent/CN101438100B/en not_active Expired - Fee Related
- 2007-03-28 WO PCT/EP2007/052962 patent/WO2007113186A1/en active Application Filing
- 2007-03-28 EP EP07727434A patent/EP2008022A1/en not_active Ceased
Non-Patent Citations (1)
Title |
---|
See references of WO2007113186A1 * |
Also Published As
Publication number | Publication date |
---|---|
ITMO20060110A1 (en) | 2007-10-01 |
CN101438100A (en) | 2009-05-20 |
CN101438100B (en) | 2011-11-16 |
WO2007113186A1 (en) | 2007-10-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2008022A1 (en) | Burner | |
US8973569B2 (en) | Gas burner | |
FI59297B (en) | GASSPIS MED EN ELLER FLERA KOKPLATSBRAENNARE BILDADE SOM STRAOLBRAENNARE | |
KR101534894B1 (en) | Door with a built-in burner for a heating appliance | |
CA2629127A1 (en) | Inwardly firing burner and uses thereof | |
KR102385741B1 (en) | Evaporator subassembly for mobile heating devices | |
KR100784950B1 (en) | Atmospheric surface combustion burner | |
CZ290040B6 (en) | Evaporation burner with a combustion chamber | |
WO2014171639A1 (en) | Alcohol water gas burner using microwaves | |
CN201492263U (en) | Interlayer pan | |
AU2005201825B2 (en) | Gas-fired water heater | |
CN201066122Y (en) | Infrared burner | |
WO2006010693A1 (en) | Flare stack having enclosed flame combustion | |
JPH0252913A (en) | Tubular burner | |
US4553929A (en) | Heating furnace | |
RU2011122979A (en) | THE COMBUSTION CHAMBER | |
KR200363754Y1 (en) | Gas Burner using Radiant Heat | |
KR200275166Y1 (en) | Burner | |
JP7105437B2 (en) | heating heater | |
US7708555B2 (en) | Gas-fired heating unit | |
CN220038463U (en) | Burner with a burner body | |
CN211399813U (en) | Reduce maintenance frequency RTO and fire waste heat bleeder line of burning furnace | |
RU2823009C2 (en) | Modular burner and furnace containing such burner | |
KR20130005930A (en) | Combustion-heat exchanger system for boiler or water heater having resonance chambers | |
JPS6227325B2 (en) |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
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 |
|
17P | Request for examination filed |
Effective date: 20081028 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR |
|
AX | Request for extension of the european patent |
Extension state: AL BA HR MK RS |
|
17Q | First examination report despatched |
Effective date: 20110309 |
|
DAX | Request for extension of the european patent (deleted) | ||
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R003 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED |
|
18R | Application refused |
Effective date: 20160703 |