US3807940A - Burner for burning off gas - Google Patents

Burner for burning off gas Download PDF

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Publication number
US3807940A
US3807940A US00283402A US28340272A US3807940A US 3807940 A US3807940 A US 3807940A US 00283402 A US00283402 A US 00283402A US 28340272 A US28340272 A US 28340272A US 3807940 A US3807940 A US 3807940A
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US
United States
Prior art keywords
mixing tube
gas
burner
tube
ducts
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.)
Expired - Lifetime
Application number
US00283402A
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English (en)
Inventor
E Juricek
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.)
Sulzer AG
Original Assignee
Sulzer 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 Sulzer AG filed Critical Sulzer AG
Application granted granted Critical
Publication of US3807940A publication Critical patent/US3807940A/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F23D14/46—Details, e.g. noise reduction means
    • F23D14/62—Mixing devices; Mixing tubes
    • F23D14/64—Mixing devices; Mixing tubes with injectors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30—Injector mixers
    • B01F25/31—Injector mixers in conduits or tubes through which the main component flows
    • B01F25/311—Injector mixers in conduits or tubes through which the main component flows for mixing more than two components; Devices specially adapted for generating foam
    • 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
    • F23D14/62—Mixing devices; Mixing 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
    • F23D14/46—Details, e.g. noise reduction means
    • F23D14/72—Safety devices, e.g. operative in case of failure of gas supply
    • F23D14/82—Preventing flashback or blowback
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
    • F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
    • F23G7/08—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases using flares, e.g. in stacks

Definitions

  • Field 6 Search 431/202, 285, 346, 351, of the flame is Positioned in the pp end of the 431/328; 239/424, 423, 416,5 .ing tube in the form of parallel or concentric tubes. One or more shield tubes are also positioned about the 56] Referenees Ci d upper end of the mixing tube to permit cooling of the UNITED STATES PATENTS by amblent 769,568 7 Claims, 2 Drawing Figures 9/1904 Roberts et al. 431/328 MTENTWWR 8Q 1514 BURNER FOR BURNING OFF GAS This invention relates to a burner for burning off gas.
  • One object of the invention is to supply adequate air to a gas so that combustion is accompanied by little or no smoke.
  • the invention provides a burner for burning off a gas which comprises a substantially vertical mixing tube having an open bottom end communicating with the surrounding atmosphere, a gas inlet for introducing a gas into the interior of the mixing tube and means at the upper end of the mixing tube for preventing flashback of a flame.
  • the gas inlet is in the form of an annular gap within the mixing tube and as such affords a simple way of bringing the gas into contact with an adequate supply of air and of mixing the gas and air intimately over a relatively short mixing zone, so that combustion is accompanied by little or no smoke.
  • the bottom end of the mixing tube is outwardly flared and the annular gap is provided adjacent the flared portion.
  • annular gas supply chamber is provided upstream of the annular gap and is defined on one side by the bottom end of the mixing tube.
  • the gas supply chamber has a conical inside surface opposite the mixing tube bottom which terminates adjacent the lower surface of the flared portion of the mixing tube to leave the annular gap; the conical surface being approximately tangential to the flared portion.
  • the means for preventing flashback of the flame is formed of a number of ducts arranged side by side (e.g. like a honeycomb) with their axes parallel to that of the mixing tube. This gives a short flame even if the volume of gas is large, since the gas flowing along the mixing tube surface accumulates at the flashback preventing means and the flame gradually extends toward the burner center as the quantity of gas increases.
  • the lower extremities of the ducts adjacent the surface of the mixing tube surface are higher than those of the ducts in the center of the mixing tube. This facilitates the flow of the mixture around the edge of the burner and therefore promotes one result of the Coanda effect, viz. a veil-like exit of the mixture close to the wall in the case of small quantities of gas.
  • the means for preventing flashback is formed of concentrically nesting pieces of tubing whose lengths may be the same or may increase with decreasing distance from the center of the mixing tube. Since the flame must not ignite any articles in the vicinity of the burner, the upper end of the mixing tube is provided with at least one shield tube which is open at top and bottom and surrounds and is spaced from the mixing tube. Cold air enters through the open bottom of the shield tube, mixes with the burnt gas and cools the gas to minimize danger to the surroundings.
  • FIG. 1 illustrates a vertical section through a burner according to the invention
  • FIG. 2 illustrates a vertical section through a modified means for preventing flashback of the flame according to the invention.
  • a burner 1 has a vertically disposed mixing tube 2 whose bottom end 3 flares outwardly like a trumpet.
  • A- means 4 for preventing flashback ofa flame generated in the burner l is located at the top end of the mixing tube 2.
  • This means 4 includes ducts arranged like a honeycomb and having axes parallel to the mixing tube 2.
  • the upper end of the mixing tube 2 is surrounded by two shield tubes 5, 6 axially offset relative to one another. Both shields tubes 5, 6 are open at top and bottom and are arranged so that one shield tube 5 surrounds the upper end of the mixing tube 2 in spaced relation while the other shield tube 6 surrounds the shield tube 5 in spaced relation.
  • the bottom trumpet-like end 3 of the mixing tube 5 ends in a radial flange 7 to which an annular casing 8 is fixed as by screws 9.
  • four lines 10 (of which only three are visible) are connected to the casing 8 and to one or more tanks (not shown) containing gas which is liquid at low temperatures (for example methane or propane).
  • the annular casing 8 has a conical internal wall 11 whose upper end 12 ends near the trumpet-like flared portion 3 and is approximately tangential to the curvature of this portion as shown.
  • An annular gap 13 is left clear between the end 12 of the conical wall and the flared portion 3.
  • the annular casing 8 and flange 7 of the mixing tube 2 cooperate to form a gas supply chamber 14 upstream of the annular gap 13.
  • the space within the conical wall 11 connects the bottom end of the mixing tube 2 to the atmosphere.
  • varporised liquid gas enters the gas supply chamber 14 through the line 10 and exits through the annular gap 13 into the bottom end of the mixing tube 2.
  • the gas mixes with the air entering from below (as indicated by arrows 16).
  • the air/gas mixture is ignited by a suitable ignition means such as a pilot burner or incandescent igniting means (now shown) above the flashback preventing means 4 and burns as a veil-like flame 15.
  • a suitable ignition means such as a pilot burner or incandescent igniting means (now shown) above the flashback preventing means 4 and burns as a veil-like flame 15.
  • Cold air is sucked in through the lower openings of the shield tube 5 and 6 and mixed with the burnt gas, so that the gas leaving the shield tube 6 is cooled enough not to ignite any articles in the vicinity of the burner.
  • the veil-like flame is shaped like a thin tube, whose wall thickness increases with the quantity of gas as the ducts nearer the center of the mixing tube 2 begin to receive gas.
  • the flashback preventing means 4' can be constructed so that the ducts near the wall of the mixing tube 2 are shorter than those in the center of the mixing tube 2 with all the ducts extending downwardly from a common horizontal plane. This facilitates the passage of the mixture through the ducts near the wall of the tube.
  • the flashback preventing means may comprise concentrically nesting pieces of tubing (now shown) whose lengths may be the same or may increase towards the center of the mixing tube.
  • a burner for burning off gas comprising a substantially vertical mixing tube having an open bottom end communicating with a surrounding atmosphere and a curved outwardly flared portion at said bottom end;
  • a fuel gas inlet disposed near said bottom end of said tube in communication with a source of fuel gas and adjacent said flared portion for introducing a gas into said mixing tube in an annular pattern
  • said mixing tube defining a side of said chamber, and said chamber having a frusto conical wall surface opposite said mixing tube extending approximately tangentially towards and terminating adjacent a lower surface of said flared portion of said mixing tube to define said gas inlet.
  • a burner for burning off gas comprising a substantially vertical mixing tube having an open bottom end communicating with a surrounding atmosphere;
  • a gas inlet disposed near said bottom end of said tube for introducing a gas into said mixing tube in an annular pattern
  • said means including a plurality of ducts arranged in side by side relation with axes parallel to a longitudinal axis of said mixing tube, said ducts adjacent the peripheral surface of said mixing tube having lower extremities disposed in a higher horizontal plane than the lower extremities of said ducts in the center of said mixing tube.
  • a burner as set forth in claim 1 further comprising at least one shield tube having an open top and open bottom disposed in spaced surrounding relation about said upper end of said mixing tube.
  • a burner as set forth in claim 1 further comprising an ignition means above said means for preventing flashback.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Environmental & Geological Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Gas Burners (AREA)
  • Spray-Type Burners (AREA)
US00283402A 1971-08-25 1972-08-24 Burner for burning off gas Expired - Lifetime US3807940A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1246371A CH542403A (de) 1971-08-25 1971-08-25 Brenner zum Abfackeln von Gas

Publications (1)

Publication Number Publication Date
US3807940A true US3807940A (en) 1974-04-30

Family

ID=4383260

Family Applications (1)

Application Number Title Priority Date Filing Date
US00283402A Expired - Lifetime US3807940A (en) 1971-08-25 1972-08-24 Burner for burning off gas

Country Status (5)

Country Link
US (1) US3807940A (de)
JP (1) JPS4831527A (de)
CH (1) CH542403A (de)
DE (1) DE2143520C3 (de)
NL (1) NL7112631A (de)

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3914093A (en) * 1973-01-18 1975-10-21 Flaregas Eng Ltd Combustion apparatus
US4184838A (en) * 1977-09-27 1980-01-22 Loffland Brothers Company Igniter for oil and/or gas well drilling operation
US4288211A (en) * 1977-12-30 1981-09-08 Hoechst Aktiengesellschaft Process and device for the introduction of explosive gases into a combustion chamber
US4310296A (en) * 1978-02-15 1982-01-12 Societe Nationale Elf Aquitaine Heat-shield for gas-burning flare in oil production installations, particularly platforms at sea
US4900244A (en) * 1984-08-29 1990-02-13 John Zink Company Gas flaring method and apparatus
GB2304180A (en) * 1995-08-10 1997-03-12 Hi Lo Flare Systems & Services Flare head
US5791893A (en) * 1995-12-26 1998-08-11 Carrier Corporation Burner with ceramic insert
US5975883A (en) * 1998-01-23 1999-11-02 Gas Research Institute Method and apparatus for reducing emissions in combustion products
US5997284A (en) * 1996-11-08 1999-12-07 Altex Oilfield Equipment, Ltd. Portable flare tank for degassing of drilling fluid
US6022213A (en) * 1997-07-01 2000-02-08 Paper Machinery Corporation Gas fired heater
US6193500B1 (en) * 1998-02-26 2001-02-27 Robert Bradt Method and apparatus for controlling gasoline vapor emissions
US6224369B1 (en) 1999-06-02 2001-05-01 David H. Moneyhun Device and method for burning vented fuel
US6231334B1 (en) * 1998-11-24 2001-05-15 John Zink Company Biogas flaring unit
US6356613B1 (en) * 1997-02-07 2002-03-12 Siemens Aktiengesellschaft Apparatus for the recombination of hydrogen in a gas mixture
WO2004010051A1 (en) * 2002-07-22 2004-01-29 Adair Rasmussen Method and apparatus for igniting a gas flare and a gas flare
GB2404002A (en) * 2003-07-16 2005-01-19 Bsh Bosch Siemens Hausgeraete Heating means for a drying apparatus
GB2404001A (en) * 2003-07-16 2005-01-19 Bsh Bosch Siemens Hausgeraete Heating means for a drying apparatus
US6948536B1 (en) 2002-12-27 2005-09-27 Hirt Combustion Engineers, Inc. System for detecting liquid fuel blockages in the vapor return line of a fuel dispenser
EP1959194A1 (de) * 2007-02-19 2008-08-20 Viessmann Werke GmbH & Co. KG Mischeinrichtung für einen Gasgebläsebrenner
US20090263755A1 (en) * 2008-04-18 2009-10-22 Nigro Robert C Off-gas flare
US20110207066A1 (en) * 2006-03-27 2011-08-25 John Zink Company, Llc Flare apparatus
US20130143170A1 (en) * 2010-08-23 2013-06-06 Thyssenkrupp Uhde Gmbh Crude gas torch comprising an adjustable opening cross-section for flaring combustible gases and method for burning crude gases
US20140041559A1 (en) * 2011-01-28 2014-02-13 Osaka Gas Co., Ltd. Furnace-Heating Combustion Apparatus
WO2017161450A1 (en) * 2016-03-21 2017-09-28 Atlantis Research Labs Inc. Incinerating system
US20200378597A1 (en) * 2016-06-03 2020-12-03 BSH Hausgeräte GmbH Gas burner and domestic cooking appliance
US11047572B2 (en) * 2013-09-23 2021-06-29 Clearsign Technologies Corporation Porous flame holder for low NOx combustion
US20210239315A1 (en) * 2020-01-30 2021-08-05 All American Services, LLC Portable flaring apparatus

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5392924U (de) * 1976-12-27 1978-07-29
JPS5733051Y2 (de) * 1978-07-28 1982-07-21
JPS60134117A (ja) * 1983-12-22 1985-07-17 N Koa Kk ガスバ−ナの逆火防止方法
JPH01256711A (ja) * 1988-04-06 1989-10-13 Koukou Enjiniaringushiya:Kk ガスバーナ
JPH0640285Y2 (ja) * 1988-08-04 1994-10-19 オイレス工業株式会社 免震支持装置
DE3932751C2 (de) * 1989-09-30 1994-01-27 Sueddeutsche Kalkstickstoff Abgasfackel
NL1011009C2 (nl) * 1999-01-13 2000-07-14 Frank Gerhardus Geerdink Verbrander.

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US769568A (en) * 1904-01-26 1904-09-06 William T Roberts Gas-burner.
US2167183A (en) * 1936-11-14 1939-07-25 North American Mfg Gas burner
US2667156A (en) * 1948-11-19 1954-01-26 Socony Vacuum Oil Co Inc Countercurrent vaporizing flare burner
US2888981A (en) * 1954-03-24 1959-06-02 Republic Steel Corp Automatic gas bleeder igniter
US3173411A (en) * 1962-10-22 1965-03-16 Enardo Mfg Company Flame arrestor
US3354681A (en) * 1964-12-28 1967-11-28 Lombard Corp Tube forming means and method

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US769568A (en) * 1904-01-26 1904-09-06 William T Roberts Gas-burner.
US2167183A (en) * 1936-11-14 1939-07-25 North American Mfg Gas burner
US2667156A (en) * 1948-11-19 1954-01-26 Socony Vacuum Oil Co Inc Countercurrent vaporizing flare burner
US2888981A (en) * 1954-03-24 1959-06-02 Republic Steel Corp Automatic gas bleeder igniter
US3173411A (en) * 1962-10-22 1965-03-16 Enardo Mfg Company Flame arrestor
US3354681A (en) * 1964-12-28 1967-11-28 Lombard Corp Tube forming means and method

Cited By (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3914093A (en) * 1973-01-18 1975-10-21 Flaregas Eng Ltd Combustion apparatus
US4184838A (en) * 1977-09-27 1980-01-22 Loffland Brothers Company Igniter for oil and/or gas well drilling operation
US4288211A (en) * 1977-12-30 1981-09-08 Hoechst Aktiengesellschaft Process and device for the introduction of explosive gases into a combustion chamber
US4310296A (en) * 1978-02-15 1982-01-12 Societe Nationale Elf Aquitaine Heat-shield for gas-burning flare in oil production installations, particularly platforms at sea
US4900244A (en) * 1984-08-29 1990-02-13 John Zink Company Gas flaring method and apparatus
GB2304180A (en) * 1995-08-10 1997-03-12 Hi Lo Flare Systems & Services Flare head
GB2304180B (en) * 1995-08-10 1999-05-19 Hi Lo Flare Systems & Services Flare head
US5791893A (en) * 1995-12-26 1998-08-11 Carrier Corporation Burner with ceramic insert
US5997284A (en) * 1996-11-08 1999-12-07 Altex Oilfield Equipment, Ltd. Portable flare tank for degassing of drilling fluid
US6356613B1 (en) * 1997-02-07 2002-03-12 Siemens Aktiengesellschaft Apparatus for the recombination of hydrogen in a gas mixture
US6022213A (en) * 1997-07-01 2000-02-08 Paper Machinery Corporation Gas fired heater
US5975883A (en) * 1998-01-23 1999-11-02 Gas Research Institute Method and apparatus for reducing emissions in combustion products
US6193500B1 (en) * 1998-02-26 2001-02-27 Robert Bradt Method and apparatus for controlling gasoline vapor emissions
US6478576B1 (en) 1998-02-26 2002-11-12 Robert Bradt Method and apparatus for controlling gasoline vapor emissions
US6231334B1 (en) * 1998-11-24 2001-05-15 John Zink Company Biogas flaring unit
US6224369B1 (en) 1999-06-02 2001-05-01 David H. Moneyhun Device and method for burning vented fuel
WO2004010051A1 (en) * 2002-07-22 2004-01-29 Adair Rasmussen Method and apparatus for igniting a gas flare and a gas flare
US7258544B2 (en) 2002-07-22 2007-08-21 Adair Rasmussen Method and apparatus for igniting a gas flare and a gas flare
US20050282099A1 (en) * 2002-07-22 2005-12-22 Adair Rasmussen Method and apparatus for igniting a gas flare and a gas flare
US6948536B1 (en) 2002-12-27 2005-09-27 Hirt Combustion Engineers, Inc. System for detecting liquid fuel blockages in the vapor return line of a fuel dispenser
US7117903B1 (en) 2002-12-27 2006-10-10 Hirt Combustion System for detecting liquid fuel blockages in the vapor return line of a fuel dispenser
GB2404001B (en) * 2003-07-16 2005-09-21 Bsh Bosch Siemens Hausgeraete Heating means for a drier
GB2404002B (en) * 2003-07-16 2005-09-21 Bsh Bosch Siemens Hausgeraete Heating means for a drier
US20050016520A1 (en) * 2003-07-16 2005-01-27 Bsh Bosch Und Siemens Hausgerate Gmbh Heating configuration for a drier
GB2404001A (en) * 2003-07-16 2005-01-19 Bsh Bosch Siemens Hausgeraete Heating means for a drying apparatus
GB2404002A (en) * 2003-07-16 2005-01-19 Bsh Bosch Siemens Hausgeraete Heating means for a drying apparatus
US20110207066A1 (en) * 2006-03-27 2011-08-25 John Zink Company, Llc Flare apparatus
EP1959194A1 (de) * 2007-02-19 2008-08-20 Viessmann Werke GmbH & Co. KG Mischeinrichtung für einen Gasgebläsebrenner
US20090263755A1 (en) * 2008-04-18 2009-10-22 Nigro Robert C Off-gas flare
US7811081B2 (en) 2008-04-18 2010-10-12 Moneyhun Equipment Sales & Service Off-gas flare
US20130143170A1 (en) * 2010-08-23 2013-06-06 Thyssenkrupp Uhde Gmbh Crude gas torch comprising an adjustable opening cross-section for flaring combustible gases and method for burning crude gases
US20140041559A1 (en) * 2011-01-28 2014-02-13 Osaka Gas Co., Ltd. Furnace-Heating Combustion Apparatus
US9677760B2 (en) * 2011-01-28 2017-06-13 Osaka Gas Co., Ltd. Furnace heating combustion apparatus
US11047572B2 (en) * 2013-09-23 2021-06-29 Clearsign Technologies Corporation Porous flame holder for low NOx combustion
WO2017161450A1 (en) * 2016-03-21 2017-09-28 Atlantis Research Labs Inc. Incinerating system
CN109073218B (zh) * 2016-03-21 2020-02-28 亚特兰提斯研究实验室公司 焚烧系统
US10612772B2 (en) 2016-03-21 2020-04-07 Atlantis Research Labs Inc. Incinerating system
US20200378597A1 (en) * 2016-06-03 2020-12-03 BSH Hausgeräte GmbH Gas burner and domestic cooking appliance
US11543122B2 (en) * 2016-06-03 2023-01-03 BSH Hausgeräte GmbH Gas burner and domestic cooking appliance
US20210239315A1 (en) * 2020-01-30 2021-08-05 All American Services, LLC Portable flaring apparatus
US11796172B2 (en) * 2020-01-30 2023-10-24 All American Services, LLC Portable flaring apparatus

Also Published As

Publication number Publication date
CH542403A (de) 1973-09-30
NL7112631A (de) 1973-02-27
DE2143520C3 (de) 1974-05-09
JPS4831527A (de) 1973-04-25
DE2143520A1 (de) 1973-03-08
DE2143520B2 (de) 1973-10-11

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