WO2002075209A1 - Radiant tube gas burner - Google Patents
Radiant tube gas burner Download PDFInfo
- Publication number
- WO2002075209A1 WO2002075209A1 PCT/SE2002/000463 SE0200463W WO02075209A1 WO 2002075209 A1 WO2002075209 A1 WO 2002075209A1 SE 0200463 W SE0200463 W SE 0200463W WO 02075209 A1 WO02075209 A1 WO 02075209A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pipe
- burner
- separate
- inner pipe
- gas burner
- Prior art date
Links
Classifications
-
- 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
- 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
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/12—Radiant burners
- F23D14/126—Radiant burners cooperating with refractory wall surfaces
-
- 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
- F23D14/66—Preheating the combustion air or gas
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2212/00—Burner material specifications
- F23D2212/10—Burner material specifications ceramic
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2900/00—Special features of, or arrangements for burners using fluid fuels or solid fuels suspended in a carrier gas
- F23D2900/00018—Means for protecting parts of the burner, e.g. ceramic lining outside of the flame tube
-
- 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
- F23L2900/00—Special arrangements for supplying or treating air or oxidant for combustion; Injecting inert gas, water or steam into the combustion chamber
- F23L2900/15043—Preheating combustion air by heat recovery means located in the chimney, e.g. for home heating devices
-
- 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 present invention relates to a gas burner.
- the invention is primarily intended for industrial furnaces.
- Swedish Patent Specification No. 9800473-2 describes a method and a burner for cleaning waste gases emitted from a gas burner or from some other combustion source, such as oil- fired burners.
- the fuel normally used is natural gas, although other gases may be used, such as propane, butane and liquefied petroleum gas or bottled gas.
- An example of an efficient gas burner is a burner of the type in which the burner head is placed at one end of an inner pipe and in which the inner pipe is surrounded by an outer protective pipe which is closed at its bottom.
- the combustion gases from the combustion chamber pass down inside the inner pipe to the bottom of the outer pipe, where they turn to flow back between the outer pipe and the inner pipe and into a waste gas channel which leads to the surroundings.
- the protective pipe delivers heat to a furnace space by convection, corresponding to 30%, and by radiation, corresponding to 70%.
- a similar type of burner also comprises an inner pipe and an outer protective pipe that surrounds the inner pipe, although the bottom of the protective pipe is not closed in this case.
- the protective pipe is curved, for instance in a U-shaped configuration, and the free end of the protective pipe is connected to a waste gas channel.
- the inner pipe equipped with the burner head is straight and is thus located within the straight section of the protective pipe.
- the outer pipe It is desirable to keep the outer pipe at a temperature of up to 1150-1200°C, so as to thereby enhance the power concentration of the burner.
- This can be achieved by producing the outer pipe from a high temperature material, such as silicon carbide (SiC) or APM.
- SiC silicon carbide
- APM is an acronym of Advanced Powder Metallurgy, and the material concerned contains about 73% Fe, 22% Cr and 5% Al.
- the powder material is extruded into a tubular form.
- One problem is that when the flame leaves the burner head and comes into contact with the inner pipe, there is formed a region in which the temperature of the inner pipe tends to become too high on relation to the temperature at which the inner pipe is intended to operate.
- the present invention solves this problem.
- the present invention thus relates to a furnace-heating gas burner of the kind in which the burner head 1 is situated at one end of an inner pipe which is surrounded by an outer protective pipe and wherein a first part of the inner pipe that surrounds the burner head is provided, and wherein a separate inner pipe is provided in the extension of the first pipe which separate inner pipe lies axially in line with the first pipe and commences at the open end thereof, and wherein the burner is characterised in that the outlet of the first pipe has an inner diameter which is smaller than the remainder of the pipe at the end of said first pipe that faces towards the separate pipe.
- Figure 1 illustrates a known type of gas burner for heating furnaces.
- the gas burner is of the kind in which the burner head 1 is situated at one end of an inner pipe 2, which is surrounded by an outer protective pipe 3.
- the bottom 4 of the protective pipe 3 is closed.
- the waste gases from the burner head will pass down inside the inner pipe 2 to the bottom 4 of the outer pipe 3 and then turn to flow back between the outer pipe and the inner pipe, as shown by the arrows, and thereafter flow into an exhaust channel 5 that leads to the surroundings.
- Figure 1 shows a first part 2 of the inner pipe that surrounds the burner head, and also shows a separate inner pipe 8 situated in the extension of the inner pipe 2.
- This separate inner pipe 8 is axially in line with the first pipe and commences at the open end of the first pipe 2.
- the first pipe 2 and the separate inner pipe 8 are thus axially in line with each other.
- the separate inner pipe 8 commences at the open end of the first pipe 2.
- the invention is not restricted to any particular gas burner or to any other type of burner, but may equally as well have been described with reference to the above-mentioned type of burner, which also has an inner pipe that is surrounded by an outer protective pipe, but where the bottom of the protective pipe is not closed but where the protective pipe is curved and the free end of said pipe is connected to a waste gas channel.
- Gaseous fuel is fed into an inlet 6 and air of combustion is fed into an inlet 7.
- the outlet of the first pipe has a smaller inner diameter than the remainder of the tube at that end which faces towards the separate pipe.
- the first pipe 2 narrows at its lower end.
- the tapering part 9 causes the speed of the gas to increase towards the mouth 10.
- the longer flame means that the area of the inner surface of the separate pipe that is heated directly by the flame, i.e. the surface area contacted by the flame, will be much greater than in the case of conventional burners.
- the smaller inner diameter of the mouth 10 is 10% to 50% of the inner diameter of the remainder of the pipe.
- the mouth 10 of the first pipe 2 is located essentially at the proximal opening 12 of the separate pipe 8.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combustion Of Fluid Fuel (AREA)
- Gas Burners (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP02704026A EP1370800A1 (en) | 2001-03-19 | 2002-03-13 | Radiant tube gas burner |
JP2002573580A JP2004526118A (en) | 2001-03-19 | 2002-03-13 | Radiant tube gas burner |
US10/472,883 US20040096794A1 (en) | 2001-03-19 | 2002-03-13 | Radiant tube gas burner |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0100948-9 | 2001-03-19 | ||
SE0100948A SE0100948L (en) | 2001-03-19 | 2001-03-19 | Burner for gas |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002075209A1 true WO2002075209A1 (en) | 2002-09-26 |
Family
ID=20283422
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/SE2002/000463 WO2002075209A1 (en) | 2001-03-19 | 2002-03-13 | Radiant tube gas burner |
Country Status (7)
Country | Link |
---|---|
US (1) | US20040096794A1 (en) |
EP (1) | EP1370800A1 (en) |
JP (1) | JP2004526118A (en) |
CN (1) | CN1498325A (en) |
SE (1) | SE0100948L (en) |
TW (1) | TW593927B (en) |
WO (1) | WO2002075209A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006043869A1 (en) * | 2004-10-22 | 2006-04-27 | Sandvik Intellectual Property Ab | A method of combustion with the aid of burners in industrial furnaces, and a burner to this end |
JP2015163837A (en) * | 2015-04-27 | 2015-09-10 | 東京瓦斯株式会社 | Heat exchanger with combustor for heating fluid |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7802421B2 (en) * | 2005-11-14 | 2010-09-28 | Ngk Insulators, Ltd. | PM generating apparatus |
RU2454604C2 (en) * | 2008-02-01 | 2012-06-27 | АйЭйчАй КОРПОРЕЙШН | Fired heater |
IT1397333B1 (en) * | 2009-06-26 | 2013-01-10 | Ergo Design S R L | BURNER |
ITPD20120282A1 (en) * | 2012-09-27 | 2014-03-28 | Systema Polska Sp Zo O | GAS COMBUSTION HEAD FOR PREMIXED BURNERS |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4493309A (en) * | 1982-09-29 | 1985-01-15 | British Gas Corporation | Fuel fired heating element |
US4850334A (en) * | 1987-06-11 | 1989-07-25 | Gas De France | Inner ceramic tube in particular for a glove finger-shaped radiant tube for recirculation |
US5762489A (en) * | 1995-02-17 | 1998-06-09 | Ws Warmeprozesstechnik Gmbh | Radiant heat exchange tube with furnace wall for industrial furnaces |
JPH11201416A (en) * | 1998-01-06 | 1999-07-30 | Chugai Ro Co Ltd | Exhaust gas circulation type low nox radiant tube burner |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2857961A (en) * | 1954-07-13 | 1958-10-28 | Brown Fintube Co | Oil burners |
US4375949A (en) * | 1978-10-03 | 1983-03-08 | Exxon Research And Engineering Co. | Method of at least partially burning a hydrocarbon and/or carbonaceous fuel |
DE2920902A1 (en) * | 1979-05-23 | 1981-04-09 | Loi Industrieofenanlagen Gmbh, 4300 Essen | DEVICE FOR HEATING AN INDUSTRIAL STOVE |
SE518816C2 (en) * | 1997-10-20 | 2002-11-26 | Kanthal Ab | Procedure for exhaust gas purification and gas burner |
SE518704C2 (en) * | 2001-03-19 | 2002-11-05 | Sandvik Ab | Burner provided with mixing chamber for fuel and air |
-
2001
- 2001-03-19 SE SE0100948A patent/SE0100948L/en not_active Application Discontinuation
-
2002
- 2002-03-13 JP JP2002573580A patent/JP2004526118A/en not_active Abandoned
- 2002-03-13 US US10/472,883 patent/US20040096794A1/en not_active Abandoned
- 2002-03-13 EP EP02704026A patent/EP1370800A1/en not_active Withdrawn
- 2002-03-13 CN CNA028068041A patent/CN1498325A/en active Pending
- 2002-03-13 WO PCT/SE2002/000463 patent/WO2002075209A1/en not_active Application Discontinuation
- 2002-03-14 TW TW091104812A patent/TW593927B/en not_active IP Right Cessation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4493309A (en) * | 1982-09-29 | 1985-01-15 | British Gas Corporation | Fuel fired heating element |
US4850334A (en) * | 1987-06-11 | 1989-07-25 | Gas De France | Inner ceramic tube in particular for a glove finger-shaped radiant tube for recirculation |
US5762489A (en) * | 1995-02-17 | 1998-06-09 | Ws Warmeprozesstechnik Gmbh | Radiant heat exchange tube with furnace wall for industrial furnaces |
JPH11201416A (en) * | 1998-01-06 | 1999-07-30 | Chugai Ro Co Ltd | Exhaust gas circulation type low nox radiant tube burner |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006043869A1 (en) * | 2004-10-22 | 2006-04-27 | Sandvik Intellectual Property Ab | A method of combustion with the aid of burners in industrial furnaces, and a burner to this end |
US7993130B2 (en) | 2004-10-22 | 2011-08-09 | Sandvik Intellectual Property Ab | Method of combustion with the aid of burners in industrial furnaces, and a burner to this end |
JP2015163837A (en) * | 2015-04-27 | 2015-09-10 | 東京瓦斯株式会社 | Heat exchanger with combustor for heating fluid |
Also Published As
Publication number | Publication date |
---|---|
SE0100948D0 (en) | 2001-03-19 |
CN1498325A (en) | 2004-05-19 |
SE0100948L (en) | 2002-09-20 |
EP1370800A1 (en) | 2003-12-17 |
US20040096794A1 (en) | 2004-05-20 |
JP2004526118A (en) | 2004-08-26 |
TW593927B (en) | 2004-06-21 |
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