Burner for operating gas turbines with minimal NOx emissions
    91.
    发明授权
    Burner for operating gas turbines with minimal NOx emissions 有权
    燃烧器用于燃烧涡轮机,燃烧器的NOx排放最小

    公开(公告)号:US06330791B1

    公开(公告)日:2001-12-18

    申请号:US09666058

    申请日:2000-09-20

    Abstract: A porous, low-conductivity material formed of metal or ceramic fibers provides the burner face of a gaseous fuel combustor for gas turbines capable of minimizing nitrogen oxides (NOX) emissions in the combustion product gases. A preferred burner face, when fired at atmospheric pressure, yields radiant surface combustion with interspersed areas of blue flame combustion. A rigid but porous mat of sintered metal fibers with interspersed bands of perforations is illustrative of a preferred burner face that can be fired at pressures exceeding 3 atmospheres at the rate of at least about 500,000 BTU/hr/sf/atm. By controlling the excess air admixed with the fuel in the range of about 40% to 150% to maintain an adiabatic flame temperature in the range of about 2600° F. to 3300° F., the NOX emissions are suppressed to 5 ppm and even below 2 ppm. At all times, carbon monoxide and unburned hydrocarbons emissions do not exceed 10 ppm, combined.

    Abstract translation: 由金属或陶瓷纤维形成的多孔,低导电性材料为能够最小化燃烧产物气体中的氮氧化物(NO x)排放的燃气轮机提供气体燃料燃烧器的燃烧器面。 当在大气压下燃烧时,优选的燃烧器表面产生具有蓝色火焰燃烧散布区域的辐射表面燃烧。 具有散射穿孔带的烧结金属纤维的刚性但多孔的垫是说明可以以至少约500,000BTU / hr / sf / atm的速率在超过3个大气压的压力下燃烧的优选燃烧器面。 通过将与燃料混合的过量空气控制在约40%至150%的范围内,以将绝热火焰温度保持在约2600°F至3300°F的范围内,将NO x排放抑制在5ppm甚至 低于2ppm。 一直以来,一氧化碳和未燃碳氢化合物排放量不超过10 ppm。

    Process for producing metallic fiber boards functionalized by catalysts and boards so produced
    92.
    发明授权
    Process for producing metallic fiber boards functionalized by catalysts and boards so produced 失效
    用于生产由催化剂和板制成的金属纤维板的方法

    公开(公告)号:US06303538B1

    公开(公告)日:2001-10-16

    申请号:US09324357

    申请日:1999-06-02

    Abstract: The present invention discloses metallic fiber boards having catalytic functionality and processes for producing the same. The boards are formed from a mesh of metallic fibers, each fiber having a first layer of an oxide and a second layer of a porous oxide. A catalyst, either disposed on the surface of the second layer, or dispersed within the second layer, provides catalytic functionality to the fiber board. The first layer is produced by thermal oxidation of the metallic fibers, while the second layer and catalyst are produced by thermal decomposition of precursor materials applied to the fiber board while in solution, typically as a spray of atomized droplets. The resulting boards are used to catalyze the combustion of hydrocarbons, especially methane, and particularly in household boilers.

    Abstract translation: 本发明公开了具有催化功能的金属纤维板及其制造方法。 这些板由金属纤维网形成,每个纤维具有第一层氧化物和第二层多孔氧化物。 设置在第二层的表面上或分散在第二层内的催化剂为纤维板提供催化功能。 第一层通过金属纤维的热氧化产生,而第二层和催化剂通过在溶液中施加到纤维板上的前体材料的热分解而产生,通常作为雾化液滴的喷雾。 所得到的板用于催化烃,特别是甲烷,特别是在家用锅炉中的燃烧。

    Apparatus for combustive destruction of troublesome substances
    94.
    发明授权
    Apparatus for combustive destruction of troublesome substances 失效
    用于燃烧破坏麻烦物质的装置

    公开(公告)号:US5603905A

    公开(公告)日:1997-02-18

    申请号:US567931

    申请日:1995-12-06

    Abstract: The disposal of troublesome substances, especially global-warming halogenated compounds is difficult enough, but is particularly difficult when associated with particulate-forming matter, such as silane and arsine commonly encountered in waste gas streams of the semiconductor industry. The combustive destruction of the troublesome substances in such a waste gas stream is simply and successfully achieved by injecting the stream admixed with fuel gas into a combustion zone surrounded by the radiant surface of a foraminous gas burner that is separately fed fuel gas and excess air sufficient to burn all the combustibles entering the combustion zone. A simple apparatus integrates the combustion zone with a quenching zone for the combustion product stream.

    Abstract translation: 处理麻烦的物质,特别是全球变暖的卤化化合物是困难的,但是当与颗粒形成物质(例如半导体工业的废气流中常见的硅烷和胂)相关时,是特别困难的。 通过将与燃料气体混合的流注入到由有孔气体燃烧器的辐射表面包围的燃烧区域中,这种废气流中的麻烦物质的可燃性破坏简单成功地实现,所述燃烧区分别供给燃料气体和足够多的空气 燃烧进入燃烧区的所有可燃物。 一个简单的装置将燃烧区与燃烧产物流的淬火区相结合。

    Gas burner with radiant retention head
    95.
    发明授权
    Gas burner with radiant retention head 失效
    气体燃烧器与辐射保持头

    公开(公告)号:US5562440A

    公开(公告)日:1996-10-08

    申请号:US392376

    申请日:1995-02-21

    Applicant: Ian M. Rodgers

    Inventor: Ian M. Rodgers

    Abstract: An inshot-gas burner for gas burning furnaces and other gas burning appliances has a flame retention head at the outlet formed from porous ceramic foam with a central opening through which a flame may project. A velocity reducing insert is located within the mixing chamber of the burner for reducing the velocity of the mixture received by the head in the area spaced about the central openings so that the head is radiant in operation. The porosity of the foam is in the order of 20 to 60 pores per inch. When radiant, the head permits the burner to operate at higher primary aerations, and provides faster burning velocity and thus lower residence time, and additionally provides a lower maximum temperature and a stable quiet flame. This permits the burner to emit low amounts of nitric oxide and nitrogen dioxide without increasing the amount of carbon monoxide emissions. The head may be formed from other materials and the velocity reduction may be provided by other structures, one of which is a composite head having restrictive discreet porting.

    Abstract translation: 气体燃烧炉和其他燃气器具的气体燃烧器具有在出口处形成的阻燃头,该多孔陶瓷泡沫具有中心开口,火焰可以通过该中心开口突出。 降低速度的插入件位于燃烧器的混合室内,用于降低在围绕中心开口间隔开的区域中由头部接收的混合物的速度,使得头部在工作中辐射。 泡沫的孔隙率为每英寸20至60个孔的数量级。 当辐射时,头部允许燃烧器在较高的初级曝气中操作,并且提供更快的燃烧速度并因此降低停留时间,并且另外提供较低的最高温度和稳定的安静的火焰。 这允许燃烧器排放少量的一氧化氮和二氧化氮,而不增加一氧化碳排放量。 头可以由其他材料形成,并且速度降低可以由其他结构提供,其中一个结构是具有限制性分离移植的复合头。

    Burner mixing chamber
    96.
    发明授权
    Burner mixing chamber 失效
    燃烧器混合室

    公开(公告)号:US5423675A

    公开(公告)日:1995-06-13

    申请号:US148850

    申请日:1993-11-08

    Inventor: Kenneth Kratsch

    Abstract: An apparatus for controllably mixing air with a combustible gas to form a combustible mixture. The apparatus includes a housing having an internal gas mixing chamber in communication with an elongated narrow gas inlet throat which is formed by a pair of converging, smoothly curved walls. A gas injector manifold is disposed proximate the gas inlet throat and is arranged so that air flows around and about the injector as it is drawn into the inlet throat either by a fan or through aspiration. Due to the novel aerodynamic shape of the walls which form the gas inlet throat, the combustible gas is thoroughly and efficiently mixed with the air to produce a combustible mixture that burns efficiently with a minimum of harmful emissions being produced.

    Abstract translation: 一种用于可控地将空气与可燃气体混合以形成可燃混合物的装置。 该装置包括具有内部气体混合室的壳体,该内部气体混合室与由一对会聚的平滑弯曲的壁形成的细长狭窄的气体入口喉部连通。 气体注入器歧管设置在气体入口喉部附近,并且被布置成使得当喷射器通过风扇或通过抽吸被吸入入口喉部时,空气流动并围绕喷射器流动。 由于形成气体入口喉部的壁的新颖的空气动力学形状,可燃气体与空气充分有效地混合,以产生可燃混合物,其以最小的有害排放物产生有效燃烧。

    Combustion apparatus having heat-recirculating function
    97.
    发明授权
    Combustion apparatus having heat-recirculating function 失效
    具有热循环功能的燃烧装置

    公开(公告)号:US5375997A

    公开(公告)日:1994-12-27

    申请号:US70568

    申请日:1993-06-01

    Abstract: The combustion apparatus is composed of: a porous burner component being made of a permeable metallic material and having a centrally located first region (11a, 11aa, 11ba, 11ca) where the fuel-air mixture is ejected and the red heat condition is formed on the surface of downstream side and having a second region (10b, 11ab, 11bb, 11cb) being located outside of the first region to recover heat from high temperature product gas coming from a combustion chamber, wherein the heat recovered in the second region is conducted to the first region; the combustion chamber (8) being located covering both the first region and the second region and enclosing these regions; a fuel-air mixture supply passage (7) to feed the fuel-air mixture into the central first region; and an exhaust passage (6) to lead the flue gas discharged from the second region to the exhaust opening (9), which exhaust passage is located adjacent to and outside of the fuel-air mixture supply passage and is separated by a separation wall (4) therefrom. A combustion apparatus is further provided with a porous burner component having a third region (10c, 11ac, 11bc, 11cc) through which the fuel-air mixture permeates, which third region is located at outside of the second region, and is provided with a peripheral fuel-air mixture supply passage (5) to lead the fuel-air mixture permeated through the third region into the central fuel-air mixture supply passage.

    Abstract translation: 燃烧装置由以下部分组成:多孔燃烧器部件由可渗透金属材料制成,并且具有中心位置的第一区域(11a,11aa,11ba,11ca),其中燃料 - 空气混合物被喷射并且形成红色热条件 下游侧的表面并且具有位于第一区域外侧的第二区域(10b,11ab,11bb,11cb),以从来自燃烧室的高温产物气体回收热量,其中在第二区域中回收的热量进行 到第一个地区 所述燃烧室(8)定位成覆盖所述第一区域和所述第二区域并且包围这些区域; 燃料 - 空气混合物供应通道(7),用于将燃料 - 空气混合物进料到中心第一区域; 和排气通道(6),其将从第二区域排出的烟道气引导到排气口(9),该排气通道位于燃料 - 空气混合物供应通道附近和外部,并被分隔壁 4)。 燃烧装置还设置有多孔燃烧器部件,该多孔燃烧器部件具有第三区域(10c,11ac,11bc,11cc),燃料 - 空气混合物通过该第三区域渗透,该第三区域位于第二区域的外部,并且设置有 周边燃料 - 空气混合物供应通道(5),以将通过第三区域渗入的燃料 - 空气混合物引入中央燃料 - 空气混合物供应通道。

    Combustion apparatus having heat-recirculation function
    98.
    发明授权
    Combustion apparatus having heat-recirculation function 失效
    具有热循环功能的燃烧装置

    公开(公告)号:US5375996A

    公开(公告)日:1994-12-27

    申请号:US70509

    申请日:1993-06-01

    Abstract: The combustion apparatus having a heat-recirculating function comprises: a porous burner component (4) being made of permeable metallic material and having a first region (4a) through which a fuel-air mixture flows and is ejected therefrom into the combustion chamber at a velocity higher than the burning velocity of the fuel-air mixture to form a flame base on the periphery of the fuel-air mixture ejection area and having a second region (4b) being located adjacent to and outside of the first region to recover heat from high temperature product gas generated from the combustion of the fuel-air mixtures by red-heating the surface of the second region on the combustion chamber side while the product gas is penetrating through the burner component (4), wherein the heat recovered in the second region is conducted to the first region; the combustion chamber (5) being located to cover both the first region (4a) and the second region (4b) and enclosing these regions, and a cylindrical wall (6) separating a fuel-air mixture supply passage (9) from a product gas exhaust passage (10 ) by placing the fuel-air mixture supply passage at the inside thereof. Such a combustion apparatus having a heat-recirculating function comprises: a porous burner component (4) having more than one first region (4a) and more than one second region (4b); a combustion chamber (5); and more than one cylindrical wall (6).

    Abstract translation: 具有热循环功能的燃烧装置包括:多孔燃烧器部件(4),其由可渗透的金属材料制成,并且具有第一区域(4a),燃料 - 空气混合物通过该第一区域流动并从其中喷射到燃烧室中 速度高于燃料 - 空气混合物的燃烧速度,以在燃料 - 空气混合物喷射区域的周围形成火焰基底,并且具有邻近第一区域和外部的第二区域(4b),以从第一区域 通过在产品气体穿过燃烧器部件(4)的同时红色加热燃烧室侧的第二区域的表面而从燃料 - 空气混合物的燃烧产生的高温产物气体,其中在第二 区域进入第一区域; 所述燃烧室(5)被定位成覆盖所述第一区域(4a)和所述第二区域(4b)并且包围这些区域;以及圆筒壁(6),其将燃料 - 空气混合物供应通道(9)与产品 通过将燃料 - 空气混合物供给通道放置在其内部,排气通道(10)。 具有热循环功能的这种燃烧装置包括:具有多于一个第一区域(4a)和多于一个第二区域(4b)的多孔燃烧器部件(4); 燃烧室(5); 和多于一个的圆柱形壁(6)。

    Cooking top cover with motorized retractable closure means assembly
    99.
    发明授权
    Cooking top cover with motorized retractable closure means assembly 失效
    烹饪具有电动收缩封闭装置的顶盖

    公开(公告)号:US5313049A

    公开(公告)日:1994-05-17

    申请号:US852243

    申请日:1992-06-01

    CPC classification number: F24C3/085 F24C3/126 F23D2203/105 F23D2212/201

    Abstract: A cooking assembly for a cooker or a cooking top and comprises a cooking plate (1) and at least one heat generator (200) enabling a receptacle to be heated without coming directly into contact therewith. The cooking plate (1) includes an opening (4) associated with each heat generator (200) and enabling said generator to act directly, together with retractable closure means such as a moving plug (203) associated with each opening (4) to close said opening when the heat generator (200) is not in use, the moving plug (203) then being flush with the top surface (2) of the cooking plate (1), motorized means being provided for retracting said moving plug in order to unmask the heat generator so that it can be put into use. The invention is applicable to cooking assemblies for gas cookers and/or electric cookers having a cooking plate made of molded glass, of vitroceramic, or of agglomerated inorganic fibers.

    Abstract translation: PCT No.PCT / FR91 / 00753 Sec。 371日期:1992年6月1日 102(e)日期1992年6月1日PCT提交1919年9月26日PCT公布。 出版物WO92 / 06335 日期:1992年4月16日。一种用于炊具或烹饪顶部的烹饪组件,包括烹饪板(1)和至少一个使得容器能够被加热而不直接接触的发热体(200)。 烹饪板(1)包括与每个热发生器(200)相关联的开口(4),并且使得所述发生器能够与诸如与每个开口(4)相关联的移动塞子(203)的可缩回的关闭装置一起直接作用以关闭 当所述热发生器(200)不使用时,所述开口,所述移动塞(203)然后与所述烹饪板(1)的顶表面(2)齐平,设置有用于收回所述移动塞的机动装置,以便 揭开发热体,使其可以投入使用。 本发明适用于具有由模制玻璃,陶瓷或聚集的无机纤维制成的烹饪板的燃气灶具和/或电饭煲的烹饪组件。

    Nested-fiber gas burner
    100.
    发明授权
    Nested-fiber gas burner 失效
    嵌套纤维气体燃烧器

    公开(公告)号:US5205731A

    公开(公告)日:1993-04-27

    申请号:US837872

    申请日:1992-02-18

    Abstract: A nested fiber gas burner is formed with a burner body having an inlet on one end and a burner port on the other end. A mat of fibers is formed from discrete fibers of material randomly deposited into a mold having the general configuration of the burner port. After the fibers are deposited in the mold to a depth of about 0.5 inch, they are heated to a temperature of about 1200.degree. C. for about two hours, which causes the fibers to bond together. Thus bonded, the fiber mat is secured in place in the burner port.

    Abstract translation: 嵌套的纤维气体燃烧器形成有燃烧器主体,其一端具有入口,另一端具有燃烧口。 纤维垫由随机沉积到具有燃烧器端口的一般构造的模具中的材料的离散纤维形成。 将纤维沉积在模具中至约0.5英寸的深度后,将它们加热至约1200℃的温度约2小时,这导致纤维粘合在一起。 如此粘合,纤维垫被固定在燃烧口中。

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