Extended wear life low pressure drop right angle single exit orifice
dual-fluid atomizer with replaceable wear materials
    1.
    发明授权
    Extended wear life low pressure drop right angle single exit orifice dual-fluid atomizer with replaceable wear materials 失效
    延长磨损寿命低压降直角单出口双流雾化器具有可更换的磨损材料

    公开(公告)号:US5542609A

    公开(公告)日:1996-08-06

    申请号:US271336

    申请日:1994-07-06

    IPC分类号: B01F5/08 B05B1/00 B05B7/04

    CPC分类号: B01F5/08 B05B1/00 B05B7/0475

    摘要: A dual-fluid low pressure drop atomizer utilizes extended wear life material and comprises a nozzle head having a secondary mix chamber therein for receiving a mixture of a first compressible fluid and a second fluid containing solids from a primary mix chamber. The nozzle head also has an orifice therein communicating with and adjacent to the secondary mix chamber for discharging a jet of the mixture. The orifice and the secondary mix chamber form an approximate right angle therebetween. An inner barrel is connected to the nozzle head at the primary mix chamber and supplies the first fluid to the nozzle head. An outer barrel is arranged around the inner barrel creating an annulus therebetween and is also connected to the nozzle head for supplying the second fluid to the nozzle head. Wear resistant material provided in the primary and secondary mix chambers reduces erosion within the atomizer head.

    摘要翻译: 双流体低压降雾化器利用延长的磨损寿命材料,并且包括其中具有二次混合室的喷嘴头,用于接收第一可压缩流体和从主混合室中含有固体的第二流体的混合物。 喷嘴头还具有与第二混合室连通并邻近二次混合室的孔,用于排出混合物的射流。 孔和二次混合室在它们之间形成近似的直角。 内筒在主混合室处连接到喷嘴头并将第一流体供应到喷嘴头。 外筒围绕内筒布置,在其之间形成环形空间,并且还连接到用于将第二流体供应到喷嘴头的喷嘴头。 设置在主混合室和次混合室中的耐磨材料减少了雾化器头内的侵蚀。

    Flooding reduction on a tubular heat exchanger
    3.
    发明授权
    Flooding reduction on a tubular heat exchanger 失效
    在管式热交换器上的泛洪减少

    公开(公告)号:US5791404A

    公开(公告)日:1998-08-11

    申请号:US691725

    申请日:1996-08-02

    IPC分类号: F28D7/16 F28D21/00 F28F9/22

    摘要: An asymmetrical, or non-uniform arrangement of heat exchanging tubes in a second stage heat exchanger of an integrated flue gas treatment system provides improved flow characteristics and reduces or eliminates flooding caused by the counter-flow of upwardly rising flue gases and downwardly falling reagent and condensate through the heat exchanging tubes. The non-uniform spacing produces a non-uniform velocity profile with at least one low velocity region in each row, allowing reagent and condensate to drain downward at said low velocity region, thereby preventing high gas phase pressure drop caused by the onset of flooding. Embodiments are provided in which one of every six tubes are removed from each row in a uniform array of tubes, or one of every four tubes are removed from each row in a uniform array of tubes. Other asymmetrical, or non-uniform spacings are possible.

    摘要翻译: 整合烟气处理系统的第二级热交换器中的热交换管的不对称或非均匀布置提供了改进的流动特性,并且减少或消除了由向上升高的烟道气和向下滴下的试剂的逆流引起的淹水, 通过热交换管冷凝。 不均匀的间距产生了每行中至少有一个低速区域的不均匀的速度分布,允许试剂和冷凝物在所述低速区域向下排放,从而防止由淹水开始引起的高气相压降。 提供了这样的实施例,其中每六个管中的一个管以均匀的管阵列从每排排除,或者每个管中的每一个之一以均匀的管阵列被移除。 其他不对称或不均匀的间距是可能的。

    Extended wear life low pressure drop right angle multi-exit orifice
dual-fluid atomizer with replaceable wear materials
    5.
    发明授权
    Extended wear life low pressure drop right angle multi-exit orifice dual-fluid atomizer with replaceable wear materials 失效
    延长磨损寿命低压降直角多出口孔双流雾化器具有可更换的磨损材料

    公开(公告)号:US5516046A

    公开(公告)日:1996-05-14

    申请号:US271293

    申请日:1994-07-06

    IPC分类号: B05B7/04 B05B1/14

    CPC分类号: B05B7/0416

    摘要: A dual-fluid low pressure drop atomizer utilizes extended wear life material and comprises a nozzle head having a chamber therein for receiving a mixture of a first compressible fluid and a second fluid containing solids. The nozzle head also has an orifice therein communicating with and adjacent to the mix chamber for discharging jets of the mixture. The orifice and the mix chamber form an approximate right angle therebetween. An inner barrel is connected to the nozzle head at the mix chamber and supplies the first fluid to the nozzle head. An outer barrel is arranged around the inner barrel creating an annulus therebetween and is also connected to the nozzle head for supplying the second fluid to the nozzle head. Wear resistant material provided in the mix chamber reduces erosion within the atomizer head. A plurality of ports are provided in the nozzle head and communicate with the orifice for discharging a jet at a multiplicity of locations.

    摘要翻译: 双流体低压降雾化器利用延长的磨损寿命材料并且包括喷嘴头,其中具有用于接收第一可压缩流体和含有固体的第二流体的混合物的腔室。 喷嘴头还具有与混合室连通并邻近混合室的孔,用于喷射混合物的喷射。 孔口和混合室在其间形成近似的直角。 内筒在混合室处连接到喷嘴头,并将第一流体供应到喷嘴头。 外筒围绕内筒布置,在其之间形成环形空间,并且还连接到用于将第二流体供应到喷嘴头的喷嘴头。 设置在混合室中的耐磨材料减少了雾化器头内的侵蚀。 多个端口设置在喷嘴头中,并与喷嘴连通,用于在多个位置排出射流。

    Dual fluid atomizer
    6.
    发明授权
    Dual fluid atomizer 失效
    双流雾化器

    公开(公告)号:US4819878A

    公开(公告)日:1989-04-11

    申请号:US73043

    申请日:1987-07-14

    摘要: An atomizer comprises a cylindrical mixing chamber with open entry and discharge ends. An inner barrel for a slurry or fluidized dry powder is connected to the entry end for supplying the slurry or fluidized fine powder into the mixing chamber. One or more atomizing gas ports extend at an angle into the mixing chamber for supplying atomizing gas to be thoroughly mixed with the slurry or fluidized dry powder in the mixing chamber. The atomizing gas ports are spaced upstream from the discharge end by from one to five times the diameter of the mixing chamber, and downstream from the entry end. A larger diameter volume chamber communicates with the discharge end of the mixing chamber and has at least one nozzle which permits the homogenized mixture to exit therefrom. An impact surface is positioned opposite the discharge end. The at least one nozzle is positioned around the impact surface. Critical dimensional and positional features for the mixing and volume chambers, the atomizing gas ports, and the at least one nozzle produce efficient atomized sprays even at low flow velocities for the slurry or fluidized dry powder and the atomizing gas.

    Low-temperature, moving bed catalytic reactor for control of NOx emissions from combustion
    7.
    发明授权
    Low-temperature, moving bed catalytic reactor for control of NOx emissions from combustion 有权
    低温,移动床催化反应器,用于控制燃烧中的NOx排放

    公开(公告)号:US07776293B2

    公开(公告)日:2010-08-17

    申请号:US12175540

    申请日:2008-07-18

    摘要: An apparatus for low-temperature NOx-reduction is disclosed, which is useful in boiler installations used at electric-generating plants. The apparatus employs one or a plurality of moving-bed reactors wherein a moving bed of common base-metal catalyst is used for selective catalytic reduction of NOx present in flue gas. The moving bed permits continuous introduction of fresh or regenerated catalyst, thus obviating the conventional problems of sulfur-poisoning and consequent reduction in catalytic activity with such catalysts. Due to the lower activation energies of such catalysts, an SCR utilizing the moving-bed reactors disclosed herein can be located downstream of the air heater, further improving electric-generating efficiency. Methods for low-temperature NOx reduction are also disclosed.

    摘要翻译: 公开了一种用于低温NOx还原的装置,其用于在发电厂使用的锅炉装置中。 该装置采用一个或多个移动床反应器,其中使用普通基础金属催化剂的移动床来选择性地催化还原存在于烟道气中的NOx。 移动床允许连续引入新鲜或再生的催化剂,从而消除了常规的硫中毒问题,从而导致催化剂的催化活性降低。 由于这种催化剂的活化能较低,所以利用本文公开的移动床反应器的SCR可以位于空气加热器的下游,进一步提高发电效率。 还公开了低温NOx还原的方法。

    LOW-TEMPERATURE, MOVING BED CATALYTIC REACTOR FOR CONTROL OF NOx EMISSIONS FROM COMBUSTION
    8.
    发明申请
    LOW-TEMPERATURE, MOVING BED CATALYTIC REACTOR FOR CONTROL OF NOx EMISSIONS FROM COMBUSTION 有权
    用于控制NOx排放的低温移动床催化反应器

    公开(公告)号:US20090035200A1

    公开(公告)日:2009-02-05

    申请号:US12175540

    申请日:2008-07-18

    IPC分类号: B01D53/56 B01J19/18

    摘要: An apparatus for low-temperature NOx-reduction is disclosed, which is useful in boiler installations used at electric-generating plants. The apparatus employs one or a plurality of moving-bed reactors wherein a moving bed of common base-metal catalyst is used for selective catalytic reduction of NOx present in flue gas. The moving bed permits continuous introduction of fresh or regenerated catalyst, thus obviating the conventional problems of sulfur-poisoning and consequent reduction in catalytic activity with such catalysts. Due to the lower activation energies of such catalysts, an SCR utilizing the moving-bed reactors disclosed herein can be located downstream of the air heater, further improving electric-generating efficiency. Methods for low-temperature NOx reduction are also disclosed.

    摘要翻译: 公开了一种用于低温NOx还原的装置,其用于在发电厂使用的锅炉装置中。 该装置采用一个或多个移动床反应器,其中使用普通基础金属催化剂的移动床来选择性地催化还原存在于烟道气中的NOx。 移动床允许连续引入新鲜或再生的催化剂,从而消除了常规的硫中毒问题,从而导致催化剂的催化活性降低。 由于这种催化剂的活化能较低,所以利用本文公开的移动床反应器的SCR可以位于空气加热器的下游,进一步提高发电效率。 还公开了低温NOx还原的方法。

    Furnace cleanliness monitor for high reflectivity ash
    9.
    发明授权
    Furnace cleanliness monitor for high reflectivity ash 失效
    炉清洁度监测器用于高反射率灰分

    公开(公告)号:US5094695A

    公开(公告)日:1992-03-10

    申请号:US621416

    申请日:1990-12-03

    摘要: A method and apparatus of initiating and terminating the cleaning of a furnace wall to remove reflective ash which been deposited thereon, comprises a video or infrared monitor which monitors the light being reflected from the furnace wall or the ratio of the reflected to the incident light, the intensity of reflected light or ratio of the reflected to the incident light increasing as additional reflective ash is deposited. When the reflected light intensity reaches a selected value, cleaning is initiated and measurement of the reflected light is continued to monitor when the reflected light reaches a low substantially constant intensity. At that point, the cleaning operation is terminated since the constant reflected light intensity indicates a substantially clean condition.

    摘要翻译: 启动和终止炉壁的清洁以去除沉积在其上的反射灰的方法和装置包括监视从炉壁反射的光或者反射到入射光的比例的视频或红外监视器, 随着额外的反射灰沉积,反射光的强度或反射到入射光的比例增加。 当反射光强度达到选定值时,当反射光达到低基本恒定的强度时,开始清洁并继续测量反射光。 此时,由于恒定的反射光强度表示基本上清洁的状态,清洗操作被终止。

    SYSTEM USING OVER FIRE ZONE SENSORS AND DATA ANALYSIS
    10.
    发明申请
    SYSTEM USING OVER FIRE ZONE SENSORS AND DATA ANALYSIS 审中-公开
    使用火灾传感器和数据分析的系统

    公开(公告)号:US20090214993A1

    公开(公告)日:2009-08-27

    申请号:US12036639

    申请日:2008-02-25

    IPC分类号: G05B21/00 G05B99/00

    CPC分类号: F23N5/082 Y02T50/677

    摘要: A system for analyzing the quality of combustion in the vicinity of the over fire zone of a combustion system includes at least one lens assembly mounted to a wall of the combustion system in the vicinity of the over fire zone. One or more photo-detectors are used to measure the intensity of light emitted in the over fire zone. A data acquisition system is connected to the photo-detector assembly via a communication link and includes an analog-to-digital converter and data buffering device for converting the light signals to digital signals. A computer analyzes the digital signals with linear and nonlinear signal analysis techniques.

    摘要翻译: 用于分析燃烧系统的过火区附近的燃烧质量的系统包括至少一个透镜组件,该透镜组件安装在燃烧系统的壁的过火区域附近。 使用一个或多个光电检测器来测量在过火区域中发射的光的强度。 数据采集​​系统经由通信链路连接到光电检测器组件,并且包括用于将光信号转换成数字信号的模数转换器和数据缓冲装置。 计算机使用线性和非线性信号分析技术分析数字信号。