Fuel oil atomizer
    1.
    发明授权
    Fuel oil atomizer 失效
    燃油雾化器

    公开(公告)号:US4383649A

    公开(公告)日:1983-05-17

    申请号:US169993

    申请日:1980-07-18

    IPC分类号: F23D11/38 F23D11/10 B05B7/04

    CPC分类号: F23D11/102

    摘要: An improved fuel oil atomizer which comprises a burner tube through which fuel oil is supplied under selected pressure, and a coaxial surrounding steam tube providing an annular space therebetween, the flow of steam being under greater pressure than the oil pressure. A burner head is joined to the burner oil tube through an orifice of selected diameter. The burner head has a long axial bore of constant selected diameter, which leads to the burner tip, which has a plurality of tip ports. There are a number of transverse ports between the annular steam path and the central bore, so that the steam can flow under pressure into the central bore of the burner head to mix thoroughly with the pressurized oil flowing from the orifice. Two factors are important in the construction of the burner head, namely that the central bore must be of constant diameter from the point where the steam and oil mix, outwardly toward the burner tip ports. Secondly, the total cross-sectional area of the tip ports must be less than the cross-sectional area of the central bore.

    摘要翻译: 一种改进的燃料油雾化器,其包括在选定压力下供应燃料油的燃烧器管和在其间提供环形空间的同轴的周边蒸汽管,蒸汽流在比油压更大的压力下。 燃烧器头通过选定直径的孔连接到燃烧器油管。 燃烧头具有恒定选定直径的长轴向孔,其通向具有多个尖端口的燃烧器尖端。 在环形蒸汽路径和中心孔之间存在多个横向端口,使得蒸汽可以在压力下流入燃烧器头部的中心孔,以与从孔口流出的加压油充分混合。 在燃烧器头部的结构中,两个因素是重要的,即中心孔必须具有恒定的直径,从蒸汽和油混合到外部朝向燃烧器尖端口。 其次,尖端口的总截面积必须小于中心孔的横截面面积。

    Burner for reduced NOx emission and control of flame spread and length
    2.
    发明授权
    Burner for reduced NOx emission and control of flame spread and length 失效
    燃烧器减少NOx排放和控制火焰蔓延和长度

    公开(公告)号:US4245980A

    公开(公告)日:1981-01-20

    申请号:US916581

    申请日:1978-06-19

    摘要: A burner for reduced NOx emission and also for the control of the shape of the flame as regards its length and spread, comprises a first combustion zone, which is contained within a cylindrical chamber lined with refractory material. A burner tube is inserted through an opening in the upstream end of the first combustion zone, the burner including means for providing and burning liquid and gaseous fuel. A first air plenum is provided upstream of the first combustion zone with means for supplying less-than-stoichiometric combustion air in a tangential swirling manner, prior to entering the first combustion zone. A second air plenum is provided coaxial with and surrounding the first combustion zone and tertiary air is supplied tangentially to this air plenum so that the tertiary air will flow in a helical swirling motion along the outside of the first combustion chamber, around the downstream end of the combustion chamber and will meet and mix with the hot products of combustion from the first combustion chamber. Control of the shape of the flame is provided by controlling the relative directions of tangential flow of air in the two plena.

    摘要翻译: 用于减少NOx排放的燃烧器以及用于控制火焰形状的长度和扩展的燃烧器包括第一燃烧区,其包含在衬有耐火材料的圆筒形室内。 燃烧器管插入通过第一燃烧区的上游端的开口,燃烧器包括用于提供和燃烧液体和气体燃料的装置。 在第一燃烧区域的上游设置有第一空气增压室,其具有用于在进入第一燃烧区域之前以切向旋转方式供应小于化学计量的燃烧空气的装置。 第二空气增压室设置为与第一燃烧区同轴并围绕第一燃烧区,并且三次空气与该空气增压室相切地供应,使得三次空气沿着第一燃烧室的外部沿着第一燃烧室的外部沿着螺旋旋转运动流动, 燃烧室将与来自第一燃烧室的热燃烧产物相遇并混合。 通过控制两个斑块中空气的切向流动的相对方向来提供对火焰形状的控制。

    Air injector nozzle for secondary reformer
    3.
    发明授权
    Air injector nozzle for secondary reformer 失效
    二次重整器用空气喷嘴

    公开(公告)号:US4166834A

    公开(公告)日:1979-09-04

    申请号:US836968

    申请日:1977-09-27

    摘要: An improved air injector for use in feed preparation in the primary reformer of a HABER processor for ammonia synthesis. In the HABER process, process gas is introduced at relatively high velocity downwardly in a process reactor through a vertical conduit. Along the axis of the conduit is an air supply pipe with a fixture which produces a plurality of downwardly and radially outwardly directed pipes attached to a plenum on the bottom of the air pipe. In this invention the number of circumferentially spaced pipes is doubled over the prior art and they are spaced circumferentially into rows directed outwardly at about a 45.degree. angle so as to present, more or less, a continuous plurality of streams of air which block the annular space and force the downflowing process gas to be turbulently mixed with the air and to form a pressurized mass of process gas and air, which is then forced, by the gas pressure, to flow downwardly in, more or less, a uniform manner through a volume of catalyst.

    摘要翻译: 一种用于用于氨合成的HABER处理器的一次重整器中的饲料制备中的改进的空气喷射器。 在HABER工艺中,工艺气体通过垂直导管在相对较高的速度下在工艺反应器中向下引入。 沿着管道的轴线是具有固定装置的空气供应管,其产生附接到空气管的底部上的增压室的多个向下和径向向外指向的管。 在本发明中,与现有技术相比,周向间隔开的管的数量翻了一番,并且它们以大约45度的角度周向地间隔开排成一列,以便或多或少地存在连续的多个空气流,其阻挡环形 空间并迫使向下流动的气体与空气湍流混合并形成加压的工艺气体和空气,然后由气体压力迫使其流动,或多或少均匀地通过 催化剂体积。

    Low NOX burner
    4.
    发明授权
    Low NOX burner 失效
    低NOX燃烧器

    公开(公告)号:US4347052A

    公开(公告)日:1982-08-31

    申请号:US26325

    申请日:1979-04-02

    摘要: A fluid fuel burner system for minimum production of NOX under varying rates of fuel firing and varying rates of combustion air or oxidant supply, which comprises a fuel burner including means for burning liquid and gaseous fuel. Liquid fuels are burned in an axial burner tube, and the gaseous fuels are burned in a plurality of gas burner tubes located in a circle coaxial with the liquid burner. A first air or oxidant plenum supplies primary-plus-secondary air or oxidant, the primary air or oxidant going to the liquid burner and the secondary air or oxidant going to the gas burner. The total of primary plus secondary is less than stoichiometric flow so that the combustion of the fuel in a first combustion chamber provides a reducing atmosphere to preclude the formation of NOX. Means are provided for independently controlling the primary air or oxidant flow compared to the secondary air or oxidant flow, or vice versa. A second air or oxidant plenum provides tertiary air or oxidant to a second combustion space downstream of the first combustion chamber. Control means provide independent control of the primary-plus-secondary air or oxidant flow to the first plenum as a selected ratio to the tertiary air or oxidant, that flows to the second plenum.

    摘要翻译: 一种流体燃料燃烧器系统,用于在不同的燃料燃烧速率和不同的燃烧空气或氧化剂供应速率下最小生产NOX,其包括燃料燃烧器,其包括用于燃烧液体和气体燃料的装置。 液体燃料在轴向燃烧器管中燃烧,并且气体燃料在位于与液体燃烧器同轴的圆的多个气体燃烧器管中燃烧。 第一空气或氧化剂气室供应初级加二次空气或氧化剂,一次空气或氧化剂进入液体燃烧器,二次空气或氧化剂进入气体燃烧器。 初级加二级的总和小于化学计量流,使燃料在第一燃烧室中的燃烧提供还原气氛以排除NOX的形成。 提供了与二次空气或氧化剂流相比独立地控制一次空气或氧化剂流量的装置,反之亦然。 第二空气或氧化剂气室将第三空气或氧化剂提供给第一燃烧室下游的第二燃烧空间。 控制装置提供对第一增压室的主加二次空气或氧化剂流的独立控制,作为流向第二增压室的三级空气或氧化剂的选定比例。

    Steam injection to zone of onset of combustion in fuel burner
    5.
    发明授权
    Steam injection to zone of onset of combustion in fuel burner 失效
    蒸汽喷射到燃料燃烧器燃烧开始区域

    公开(公告)号:US4152108A

    公开(公告)日:1979-05-01

    申请号:US816189

    申请日:1977-07-15

    CPC分类号: F23D11/40 F23D14/64 F23L7/005

    摘要: Apparatus for burning gaseous and liquid fuels in a furnace, to retard formation of NO.sub.x, comprising a fuel tube of selected length and diameter, closed at the end which is inserted into a combustion zone. There are a plurality of ports drilled in the closed end of the fuel tube, the axes of which lie on a conical surface coaxial with the fuel tube. The fuel tube is inserted coaxially into a burner tube of selected larger diameter, and the distant ends are substantially coplanar. A plurality of jets of low pressure steam are injected through a plurality of ports into the annular space between the fuel tube and the burner tube at the outer end of the burner tube. The steam jets flowing through the ports induce a flow of primary combustion air, which mixes with the steam and flows down the annular space to mix with the high velocity jets of fuel as they emerge from the ports on the fuel tube. The fuel, air, and steam mix together prior to entering the combustion reaction zone.

    摘要翻译: 用于在炉中燃烧气体和液体燃料以阻止形成NOx的装置,其包括选定长度和直径的燃料管,其在插入燃烧区的端部处封闭。 在燃料管的封闭端处钻有多个端口,其轴线位于与燃料管同轴的锥形表面上。 燃料管同轴地插入到选定的较大直径的燃烧器管中,并且远端基本上共面。 多个低压蒸汽喷射通过多个端口喷射到燃烧器管的外端处的燃料管和燃烧器管之间的环形空间中。 流过端口的蒸汽喷嘴引起初级燃烧空气的流动,其与蒸汽混合并沿着环形空间流动,以与燃料的高速射流混合,从燃料管上的端口出来。 燃料,空气和蒸汽在进入燃烧反应区之前混合在一起。

    Lean pre-mix low NOx burner
    6.
    发明授权
    Lean pre-mix low NOx burner 有权
    精益预混低NOx燃烧器

    公开(公告)号:US06875008B1

    公开(公告)日:2005-04-05

    申请号:US10353439

    申请日:2003-01-29

    摘要: An improved burner assembly and process for operating same using a burner design that produces very low levels of undesirable nitrogen oxides is provided. The burner assembly premixes primary fuel and air in a venturi system and recirculates combustion gases back to the burner through a plurality of recirculation conduits where it is mixed with the premix of fuel and air and secondary air prior to combustion in a primary combustion zone. Rapid premixing of the primary fuel and air in the venturi system and the dispersion of the recirculated furnace gases is believed to result in lower peak flame temperatures and therefore minimizing the formation of the pollutants, such as nitrogen oxides.

    摘要翻译: 提供了一种改进的燃烧器组件和使用产生非常低水平的不期望的氮氧化物的燃烧器设计来操作燃烧器组件的方法。 燃烧器组件将主要燃料和空气预先混合在文丘里管系统中,并且将燃烧气体通过多个再循环管道再循环到燃烧器中,在多个再循环管道中,燃料和空气与二次空气在燃烧前在一次燃烧区域中混合。 据信,文丘里系统中初级燃料和空气的快速预混合以及再循环的炉内气体的分散,导致较低的峰值火焰温度,从而使污染物(如氮氧化物)的形成最小化。

    Fuel dispensing and vehicle maintenance system
    8.
    发明授权
    Fuel dispensing and vehicle maintenance system 失效
    燃油分配和车辆维修系统

    公开(公告)号:US4490798A

    公开(公告)日:1984-12-25

    申请号:US331250

    申请日:1981-12-16

    CPC分类号: G07C5/006 G01D4/14 G07C5/0858

    摘要: A method and apparatus for dispensing fuel has features to prevent theft of fuel and also control maintenance of authorized vehicles. The system includes a portable memory unit which remains with each vehicle. At the fuel dispensing site, a data processing unit receives the portable memory unit to read from it coded information. A central processing unit is located at a central records site and connected to the remote processing unit for record storage. The remote processing unit reads a vehicle identification number and checks it for validity. The remote processing unit also reads a last mileage at which fuel was dispensed, and compares it to a current mileage entered by the operator into the remote processing unit. A next service mileage is also read by the remote processing unit and compared to the current mileage. If the current mileage is less than the last mileage, this is an indication of error, and fuel will not be dispensed. If the current mileage exceeds a next sevice mileage, the operator is notified to immediately take the vehicle to a maintenance facility for maintenance. The portable memory unit may be updated in the field with the remote processing unit to indicate a new current mileage. The memory unit can also be updated at the maintenance site to indicate a new service mileage.

    摘要翻译: 用于分配燃料的方法和装置具有防止燃料盗窃并且还控制授权车辆的维护的特征。 该系统包括与每个车辆保持的便携式存储器单元。 在燃料分配站点,数据处理单元接收便携式存储单元以从其读取编码信息。 中央处理单元位于中央记录站点,并连接到远程处理单元进行记录存储。 远程处理单元读取车辆标识号并检查其有效性。 远程处理单元还读取分配燃料的最后一个里程,并将其与操作员输入到远程处理单元的当前里程进行比较。 远程处理单元还读取下一个维修里程,并与当前的里程进行比较。 如果当前里程小于最后一个里程,这是错误的指示,燃料将不会被分配。 如果当前里程超过了下一个维修里程,则通知操作员立即将车辆带到维护设施进行维护。 便携式存储器单元可以在远程处理单元的现场更新以指示新的当前里程。 还可以在维护站点更新存储单元,以指示新的服务里程。

    Method for reducing the kerf width made by a circular saw blade
    10.
    发明授权
    Method for reducing the kerf width made by a circular saw blade 失效
    减小由圆锯片产生的切口宽度的方法

    公开(公告)号:US5497684A

    公开(公告)日:1996-03-12

    申请号:US199575

    申请日:1994-02-22

    申请人: Richard R. Martin

    发明人: Richard R. Martin

    IPC分类号: B23D47/00 B27B5/00

    摘要: A guiding system for large circular saws wherein the guiding pads are positioned according to a typical angular wavelength of a circumferential vibration wave of the saw blade when rotating at an operating speed. In one embodiment, the frequency of a natural circumferential vibration wave is measured before positioning the guiding pads. Two sets of guiding pads are spaced apart a distance equal to about half the angular wavelength of such natural vibration wave. This distance corresponds to an angular distance between two successive opposite peaks or crests of a sinusoidal wave in the saw blade. The consequence of two successive opposite peaks entering the guiding pads at the same time has the effect of dampening the vibration very quickly, by acting upon both sides of the blade simultaneously to reduce the amp amplitude of the wave, while maintaining balanced axial impact on the saw. The guiding pads are further positioned in a true co-planar relationship with the saw blade by means of two superimposed three-point levellers, on the pad supporting members.

    摘要翻译: 一种用于大型圆锯的导向系统,其中当以操作速度旋转时,引导垫根据锯片周向振动波的典型角波长定位。 在一个实施例中,在定位导向垫之前测量天然圆周振动波的频率。 两组引导垫间隔开等于这种固有振动波的角波长的大约一半的距离。 该距离对应于锯片中正弦波的两个连续相对的峰或峰之间的角距离。 同时进入引导垫的两个连续的相对峰值的结果具有通过同时作用于叶片的两侧而非常快速地抑制振动的效果,以减小波的放大器振幅,同时保持平衡的轴向冲击 锯。 引导垫通过两个重叠的三点平顶板进一步定位成与锯片真正的共平面关系,位于垫支撑构件上。