序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
1 Burner tip and seal for the burner performance optimization JP2003578820 2003-03-14 JP2005521022A 2005-07-14 スティーブンズ、ジョージ; スパイサー、デイビッド・ビー; トリンブル、ロバート; ベルト、ジェイムズ・エイチ
蒸気分解等の炉に使用するバーナーであって、燃料を燃焼させる改良型のバーナー。 バーナーは、バーナー管(12)であって、長軸を有しかつ下流端(18)と、燃料及び空気、燃焼排ガス又はそれらの混合物を受ける上流端(16)を有するバーナー管と、該バーナー管上流端に隣接して設けられ燃料をバーナー管に導入する燃料オリフィス(11)と、バーナー管下流端に設けられかつ炉の第1開口に隣接して設けられたバーナー先端(20)であって、バーナー管の長軸に対して整列して配列された複数のメインポートと、複数の周囲配列されたサイドポートを有するバーナー先端と、バーナー管の外周を囲む周囲タイル(22)であって、燃焼の間に周囲配列されたサイドポートから排出される燃焼排ガスの量が燃焼された全燃料ガスの15%を超えないように燃焼のための一部の空気を与える少なくとも1つのギャップをバーナー先端の外周と該周囲タイルの間に与える周囲タイルとを含む。
2 Little flat flame burner of nitrogen oxide production amount JP54169998 1998-03-19 JP2002500744A 2002-01-08 シャノン・ロバート・エイ.; ニースズツアー・キース・ジェイ.; ニューバイ・ジョン・エヌ.
(57)【要約】 バーナータイルに燃料と空気とを供給する流路(32,42)を備えた平面火炎バーナーが開示されている。 旋回流を発生させる機構(34)を設けることにより、バーナータイル(36)が末広がり形状となっていることと相まって、軸方向成分が非常に小さく、半径方向に拡散する火炎面が形成され、炉内の不活性な燃焼生成物が火炎内に効率よく取り込まれる。 燃焼率を抑制するために、燃料の一部は炉内から取り込まれた生成物中に供給され、その結果、超低NOxの平面火炎が形成される。 本発明によれば、従来の平面火炎バーナーに比べて、多機能化と使い勝手を大きく改善することもできる。
3 Gas fuel burner JP2177679 1979-02-26 JPS54127044A 1979-10-02 ROBAATO DEII RIIDO; HAASHIERU II GUTSUDONAITO
4 Portable Burner For Removing Surface Layer of Stone Material And Method Of Removing Surface Layer of Stone Material Using The Same KR20150007307 2015-01-15 KR101551594B1 2015-09-08 JUNG MIN SHY
본 발명에 따르면, 병렬로 배치된 제 1 파이프 및 제 2 파이프와, 상기 제 1 파이프의 일 단부 및 상기 제 2 파이프의 일 단부가 삽입되는 혼합 파이프를 구비하고, 상기 제 1 파이프를 통해 유동하는 산소 및 상기 제 2 파이프를 통해 유동하는 연소 기체가 상기 혼합 파이프를 통해 혼합 기체로서 유동하는, 혼합 도관; 상기 혼합 도관이 연결되고, 상기 혼합 기체를 확산시키기 위한 내부 공간을 구비하는 기체 확산부; 상기 기체 확산부의 저부에 접합되어 상기 혼합 기체를 석재 표면에 분사시키는 분사 노즐로서, 상기 혼합 기체의 점화에 의해 발생된 화염이 상기 석재 표면을 탈피시킬 수 있게 하는, 분사 노즐; 및, 상기 기체 확산부의 일부 및 상기 분사 노즐이 수용되어 지지되는 내부 공간이 형성된 지지부;를 구비하는 석재 표면 탈피용 휴대 버너가 제공된다. 또한 본 발명에 다른 석재 표면 탈피용 휴대 버너를 이용하는 석재 표면 탈피 방법이 제공된다.
5 BURNER SYSTEM INCLUDING AT LEAST ONE COANDA SURFACE AND ELECTRODYNAMIC CONTROL SYSTEM, AND RELATED METHODS US14167875 2014-01-29 US20140212820A1 2014-07-31 Joseph Colannino; Igor Alexeevitch Krichtafovitch; Christopher A. Wiklof
Embodiments of the invention are directed to a burner system including at least one Coanda surface and at least two electrodes that are biased in a manner to influences a location of fuel flow relative to the at least one Coanda surface and related methods. In an embodiment, a burner system includes at least one Coanda surface, at least one nozzle positioned and configured to emit a fuel flow at least proximate to the at least one Coanda surface, at least two electrodes, and a voltage source operably coupled to the at least two electrodes. The voltage source may be configured to bias the at least two electrodes to generate an electric field at least proximate to the at least one Coanda surface that influences a location of the fuel flow and/or a flame relative to the at least one Coanda surface.
6 Burner design for reduced NOx emissions US10388979 2003-03-14 US06893251B2 2005-05-17 George Stephens
A staged-air burner for use in furnaces such as in steam cracking. The burner includes a burner tube including (i) a downstream end, (ii) an upstream end for receiving fuel and air, flue gas or mixtures thereof from a primary air chamber, and (iii) a burner tip mounted on the downstream end of said burner tube and directed to the first flame opening in the furnace, so that combustion of the fuel takes place downstream of said burner tip; a secondary air chamber for supplying a second portion of combustion air, said secondary air chamber in fluid communication with at least one air port; and a wall peripherally surrounding said burner tip to provide a barrier between a base of a flame at said burner tip and said at least one air port.
7 Burner with flue gas recirculation US10389346 2003-03-14 US06890172B2 2005-05-10 George Stephens; David B. Spicer; Mark E. Bury; Roberto O. Pellizzari; Peter Loftus
A burner for use in furnaces such as the type employed in steam cracking. The burner includes a primary air chamber, a burner tube including (i) a downstream end, (ii) an upstream end in fluid communication with the primary air chamber for receiving air, flue gas or mixtures thereof and fuel, and (iii) a burner tip mounted on the downstream end of the burner tube and directed to a first opening in the furnace, so that combustion of a combustible mixture including fuel and air takes place downstream of the burner tip, at least one flue gas recirculation duct having a first end at a second opening in the furnace and a second end opening into the primary air chamber, the at least one flue gas recirculation duct having at least one primary air channel in fluid communication with the at least one flue gas recirculation duct, and means for drawing flue gas from the furnace and primary air from a source of air, through the duct and into the primary air chamber, in response to an inspirating effect of uncombusted fuel flowing through the burner tube from its upstream end towards its downstream end. Optionally the flue gas recirculation duct has a plate member extending into the primary air chamber to create flow eddies to enhance further mixing of flue gas and air.
8 Burner with low NOx emissions US10388833 2003-03-14 US06877980B2 2005-04-12 George Stephens; David B. Spicer; Robert Trimble; Gautam Gauba; Mark E. Bury
A burner for use in furnaces such as in steam cracking. The burner includes a primary air chamber; a burner tube having an upstream end, a downstream end and a venturi intermediate said upstream and downstream ends, said venturi including a throat portion having substantially constant internal cross-sectional dimensions such that the ratio of the length to maximum internal cross-sectional dimension of said throat portion is at least 3; a burner tip mounted on the downstream end of said burner tube adjacent a first opening in the furnace, so that combustion of the fuel takes place downstream of said burner tip; and a fuel orifice located adjacent the upstream end of said burner tube, for introducing fuel into said burner tube.
9 Burner tip for pre-mix burners US10388994 2003-03-14 US20040241601A1 2004-12-02 David B. Spicer
An improved burner and a method for combusting fuel in burners used in furnaces such as those found in steam cracking. The burner includes a burner tube having a longitudinal axis and having a downstream end and an upstream end for receiving fuel gas and air, flue gas or mixtures thereof, a fuel orifice located adjacent the upstream end of the burner tube, for introducing fuel gas into the burner tube, a burner tip mounted on the downstream end of the burner tube and adjacent a first opening in the furnace, the burner tip having a plurality of main ports substantially aligned with said longitudinal axis of the burner tube, and a plurality of peripherally arranged side ports and an peripheral tile which peripherally surrounds the burner tip, leaving at least one gap between an outer periphery of the burner tip and the peripheral tile, the at least one gap effective for providing a portion of the air for combustion wherein the quantity of fuel gas discharged during combustion from the peripherally arranged side ports does not exceed 15% of the total fuel gas combusted. Reducing the quantity of the fuel gas discharged from the side ports during burner operation is effective to reduce NOx emissions during combustion over a similar burner utilizing a conventional burner tip design.
10 Method for adjusting pre-mix burners to reduce NOx emissions US10388832 2003-03-14 US20030175646A1 2003-09-18 George Stephens; David B. Spicer
A method for reducing NOx emissions from a furnace having multiple burners, each burner including at least one chamber for supplying a flow of combustion air and means to adjust the flow of air to the at least one chamber. The method includes the steps of measuring a parameter correlative of combustion air flow; adjusting the flow of combustion air to the at least one chamber so that the parameter is within a predetermined tolerance; and repeating the aforementioned steps for a plurality of burners.
11 Fuel spud for high temperature burners US10389328 2003-03-14 US20030175642A1 2003-09-18 George Stephens; David B. Spicer
An improved burner and a method for combusting fuel in a burner used in furnaces such as those found in steam cracking. The burner includes a burner tube having a downstream end and an upstream end, the burner tube having a venturi therein; a fuel spud located adjacent the upstream end of the burner tube, for introducing fuel gas into the burner tube; a burner tip mounted on the downstream end of the burner tube adjacent a first opening in the furnace; at least one passageway having a first end and a second end adjacent the upstream end of the burner tube; means for drawing flue gas from the furnace, through the passageway, in response to an inspirating effect of uncombusted fuel gas exiting the fuel spud, the uncombusted fuel gas flowing through the burner tube from its upstream end towards its downstream end; and means for increasing the inspirating effect of uncombusted fuel gas exiting the fuel spud. The means for increasing the inspirating effect of uncombusted fuel gas exiting the fuel spud is effective to increase the amount of flue gas drawn from the furnace.
12 Burner employing flue-gas recirculation system US10389007 2003-03-14 US20030175639A1 2003-09-18 David B. Spicer
A method and apparatus for reducing the temperature of the recirculated flue gas in a flue gas recirculation duct for burners in industrial furnaces such as those used in steam cracking. The apparatus includes a burner tube having a downstream end and an upstream end for receiving air, flue gas and fuel gas, a burner tip mounted on the downstream end of the burner tube adjacent a first opening in the furnace, so that combustion of the fuel takes place downstream of the burner tip; at least one passageway having a first end at a second opening in the furnace and a second end adjacent the upstream end of the burner tube, the passageway having an orifice in fluid communication with a source of air which is cooler than the flue gas; and a mechanism for drawing flue gas from the furnace through the passageway and air from the orifice of the passageway in response to an inspirating effect created by uncombusted fuel flowing through the burner tube from its upstream end towards its downstream end, whereby the flue gas is mixed with air from the orifice of the passageway prior to the zone of combustion of the fuel to thereby lower the temperature of the drawn flue gas.
13 Burner employing flue-gas recirculation system with enlarged circulation duct US10388894 2003-03-14 US20030175635A1 2003-09-18 George Stephens; David B. Spicer
A method and apparatus are disclosed for use in furnaces such as those used in steam cracking. The apparatus includes a burner tube having a downstream end and an upstream end for receiving fuel and flue gas, air or mixtures thereof, with a burner tip being mounted on the downstream end of the burner tube adjacent a first opening in the furnace, so that combustion of the fuel takes place downstream of the burner tip. The burner includes at least one passageway having a first end at a second opening in the furnace and a second end adjacent the upstream end of the burner tube, the passageway having a cross-sectional area and shape sufficient to permit a total FGR (flue gas recycle) ratio of greater than 10%. In addition, the burner includes a means for drawing flue gas from the furnace through the passageway in response to an inspirating effect created by uncombusted fuel flowing through the burner tube.
14 Ultra low NOx burner for process heating US10067450 2002-02-05 US20030148236A1 2003-08-07 Mahendra Ladharam Joshi; Kevin Ray Heier; Aleksandar Georgi Slavejkov
An ultra low NOx burner for process heating is provided which includes a fluid based flame stabilizer which provides a fuel-lean flame at an equivalence ratio in the range of phinull0.05 to phinull0.3 and fuel staging lances surrounding the flame stabilizer in circular, flat, or load shaping profiles, each lance comprising a pipe having a staging nozzle at a firing end thereof, each lance having at least one hole for staging fuel injection, and each hole having a radial divergence angle and an axial divergence angle. The at least one hole and the divergence angles provide circular, flat or load shaping flame pattern. The burner provides NOx emissions of less than 9 ppmv at near stoichiometry combustion conditions.
15 High capacity/low NOx radiant wall burner US09949007 2001-09-07 US20020076668A1 2002-06-20 Demetris T. Venizelos; Wesley Ryan Bussman; Ralph Robert Hayes; Jesse S. Chambers; Roger L. Poe
A burner assembly for a radiant burner includes a burner tube structure in the form of an elongated burner conduit having spaced inlet and outlet ends. The conduit is adapted and arranged for directing a fuel lean gaseous mixture comprising a portion of the total fluid fuel to be combusted and oxygen therealong from the inlet end to the outlet end. The assembly also includes a main burner nozzle at the outlet end of the conduit, which nozzle has a central axis, a wall extending around a centrally located chamber therein, and a downstream end spaced from the outlet end of the conduit. The main burner nozzle is arranged and adapted for receiving the mixture from the conduit in the chamber and redirecting the same through a plurality of apertures in the wall and into a combustion zone in a direction transverse to the axis and at a velocity which is greater than the flame speed of the gaseous mixture. The apertures are distributed circumferentially around the wall, whereby the mixture is directed without substantial recirculation and with minimal pressure drop through said apertures and into the combustion zone in the form of a generally round flat pattern which is detached from the nozzle, surrounds the wall and extends outwardly across a radiant surface of a burner tile. The burner also includes an elongated fuel tube extending in a direction generally parallel to the axis, and the fuel tube has a downstream end portion. A secondary fuel nozzle includes a secondary fuel port on the downstream end portion of the fuel tube, which secondary fuel port is located and arranged so as to deliver secondary fuel to a position which is on the opposite side of the fuel pattern from the radiant surface and sufficiently remote from the combustion zone to permit the same to become intermixed with flue gases before entering said combustion zone.
16 Flat flame burner US534068 1974-12-18 US3940242A 1976-02-24 Yuji Matsumura; Hiroyuki Mitsudomi
A flat flame burner comprises an air swirling chamber, an air supply tube provided for the air chamber for introducing combustion air thereinto in the peripheral direction of the air chamber so as to produce a swirling air stream in the chamber, a fuel gas supply tube disposed in the air chamber and having inlets centrally of the space for the swirling air stream and a flame opening positioned at one side in the direction of axis of the swirling air stream coaxially with the swirling air stream, the flame opening being defined by a wall having a thin portion around said opening and a flat outer face.
17 Fuel burner assemblies US3773075D 1971-11-24 US3773075A 1973-11-20 THOMPSON M; PEARCE R; HOWARD D
A fuel burner assembly of the venturi type having its fuel nozzle provided with a plurality of jets and being more forwardly disposed in relation to the venturi than is conventional in order to reduce operating noise.
18 COOL FLAME COMBUSTION US12618136 2009-11-13 US20100089066A1 2010-04-15 Theodors Ishaq Mina
A combustion process for burning fuel in a combustion chamber is provided. The process includes supplying fuel and air to a burner, the amount of air supplied being at least as much as required for stoichiometric combustion of the fuel and subsequent dilution of the combustion process. The process also includes injecting the fuel and all the air from the burner directly into the combustion chamber in a substantially unmixed state as a fuel stream within an air stream. Fuel is injected from a nozzle, which is nested within an air nozzle. The fuel nozzle ejects a fuel stream of such thickness that the fuel burns in the combustion chamber as a diffusion flame with a high surface-to-volume ratio at or close to the stoichiometric fuel/air ratio. The flow of air through the air nozzle is subject to the venturi effect.
19 Centering plate for burner US10389549 2003-03-14 US06887068B2 2005-05-03 David B. Spicer
A burner for use in furnaces such as in steam cracking. The burner includes a burner tube having a downstream end and an upstream end. A burner tip is mounted on the burner tube adjacent a first opening in the furnace, so that combustion of the fuel takes place downstream of the burner tip. A fuel orifice located adjacent the upstream end of the burner tube is included for introducing fuel into the burner tube. The burner may also include at least one passageway for supplying flue gas from the furnace into a primary air chamber. The burner also has a structure responsive to an inspirating effect created by uncombusted fuel exiting the fuel orifice for drawing flue gas from the furnace through the passageway and the primary air chamber. The burner also includes a plate for centering the fuel orifice with the burner tube, the centering plate being perforated to permit flow therethrough.
20 Burner employing flue-gas recirculation system US10389007 2003-03-14 US06846175B2 2005-01-25 David B. Spicer
A method and apparatus for reducing the temperature of the recirculated flue gas in a flue gas recirculation duct for burners in industrial furnaces such as those used in steam cracking. The apparatus includes a burner tube having a downstream end and an upstream end for receiving air, flue gas and fuel gas, a burner tip mounted on the downstream end of the burner tube adjacent a first opening in the furnace, so that combustion of the fuel takes place downstream of the burner tip; at least one passageway having a first end at a second opening in the furnace and a second end adjacent the upstream end of the burner tube, the passageway having an orifice in fluid communication with a source of air which is cooler than the flue gas; and a mechanism for drawing flue gas from the furnace through the passageway and air from the orifice of the passageway in response to an inspirating effect created by uncombusted fuel flowing through the burner tube from its upstream end towards its downstream end, whereby the flue gas is mixed with air from the orifice of the passageway prior to the zone of combustion of the fuel to thereby lower the temperature of the drawn flue gas.
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