公开(公告)号：US20120177553A1

公开(公告)日：2012-07-12

申请号：US13313683

申请日：2011-12-07

申请人： Scott H. Lindemann ,  Bruce E. Hartel ,  John N. Dale ,  Jeffrey Michael Broderick ,  James M. Valentine

发明人： Scott H. Lindemann ,  Bruce E. Hartel ,  John N. Dale ,  Jeffrey Michael Broderick ,  James M. Valentine

IPC分类号： B01D53/56

CPC分类号： C10L10/00 ,  B01D53/8631 ,  B01D53/9431 ,  B01D2251/2067 ,  B01D2258/012 ,  F01N3/2066 ,  F01N2610/02 ,  F01N2610/08 ,  F01N2610/1453 ,  F23J7/00 ,  F23J15/003 ,  Y02T10/24

摘要： A system and method of reducing NOx emissions from a lean burn combustion source is provided. The system includes at least one injection lance having a elongated shaft with distal and proximal ends, a metering valve positioned at the distal end, an atomization chamber positioned between the metering valve and the distal end, a storage chamber for containing a reagent fluidly connected to the metering valve, an injection tip positioned at the proximal end for delivering the reagent, and at least one air port for supplying air to the atomization chamber. The injection lance is positioned in the combustion source, and the reagent is supplied from the storage chamber to the injection lance at an inlet pressure. The reagent is then injected into the combustion source via the injection lance, wherein a temperature of the reagent prior to the injection is maintained below a hydrolysis temperature of the reagent.

摘要翻译： 提供了一种减少来自稀燃燃烧源的NOx排放的系统和方法。 该系统包括至少一个注射枪，其具有具有远端和近端的细长轴，位于远端的计量阀，位于计量阀和远端之间的雾化室，用于容纳流体连接到 计量阀，位于近端处的用于输送试剂的注射头，以及用于向雾化室供应空气的至少一个空气口。 注射枪定位在燃烧源中，并且试剂在入口压力下从储存室供应到喷枪。 然后通过注射枪将试剂注入燃烧源，其中注射前试剂的温度保持低于试剂的水解温度。

公开(公告)号：US6053431A

公开(公告)日：2000-04-25

申请号：US272952

申请日：1999-03-19

申请人： John F. Hurley ,  John N. Dale ,  Scott H. Lindemann

发明人： John F. Hurley ,  John N. Dale ,  Scott H. Lindemann

IPC分类号： B05B1/34 ,  F23D11/38

CPC分类号： B05B1/3426 ,  B05B1/3478 ,  F23D11/383

摘要： A liquid atomizer for, e.g., fuel, comprises a tube having an opening for receiving pressurized liquid flow. The tube has a closed end, a wall, and a plurality of bores in the wall. The bores are disposed in consecutive circumferential rows, and are oriented at an acute angle .alpha. with respect to a radius of the tube and at an acute angle .beta. with respect to a longitudinal axis of the said tube. A shell having a discharge end with a discharge orifice encircles a portion of length of the tube, including the closed end of the tube. The shell forms an annular chamber around the tube end and an end chamber between the closed tube end and the shell discharge end. Liquid under pressure entering the tube opening is directed outwardly through the wall bores into the annular chamber, into the end chamber, and out through the discharge orifice for introduction, for example, into a combustor.

摘要翻译： 用于例如燃料的液体雾化器包括具有用于接收加压液体流的开口的管。 该管具有封闭的端部，壁和壁中的多个孔。 孔被设置成连续的周向行，并且相对于管的半径以锐角α定向并且相对于所述管的纵向轴线成锐角β。 具有排放端的具有排放孔的壳体围绕管的一部分长度，包括管的封闭端。 壳体围绕管端形成环形室，并且在封闭管端和壳体排出端之间形成端室。 进入管开口的压力下的液体通过壁孔向外引导进入环形室，进入端室，并通过排放孔排出，例如引入燃烧器。

公开(公告)号：US6024301A

公开(公告)日：2000-02-15

申请号：US173640

申请日：1998-10-16

申请人： John F. Hurley ,  John N. Dale

发明人： John F. Hurley ,  John N. Dale

IPC分类号： B05B1/04 ,  B05B1/34

CPC分类号： B05B1/3484 ,  B05B1/3436 ,  B05B1/042

摘要： An atomizer spray plate is provided for discharging fuel oil. The spray plate has a cylindrical rear portion and a conical front portion. A frusto-conical whirl chamber extends from the rear portion to the front portion with a decreasing radius. The rear portion includes a number of whirl slots extending radially inward from an outboard region of the rear portion to the whirl chamber to provide the fuel oil with rotational energy. A discharge slot is provided in the front portion of the atomizer spray plate for receiving the fuel oil from the whirl chamber with the rotational energy. The discharge slot includes a cylindrical through-hole with a diameter d, and a transverse slot having a semi-circular cross-section with radius r. The discharge slot can be easily and economically fabricated with two shaping steps since there is no need to precisely set any particular non-right angle for walls of the discharge slot. Yet, the discharge slot provides a spray pattern with lateral fuel-rich zones separated by a central fuel-lean zone which inhibits the formation of NO.sub.x by reducing the peak combustion flame temperature generated by the spray pattern.

摘要翻译： 提供雾化器喷射板用于排出燃料油。 喷射板具有圆柱形后部和锥形前部。 截头圆锥形旋转室从后部延伸到前部，半径减小。 后部包括从后部的外侧区域向旋转室径向向内延伸的多个旋转槽，以向燃料油提供旋转能量。 喷雾槽设置在雾化喷雾板的前部，用于以旋转能量从旋转室接收燃料油。 放电槽包括具有直径d的圆柱形通孔，以及具有半径r的半圆形横截面的横向槽。 通过两个成型步骤可以容易且经济地制造排放槽，因为不需要精确地设定排放槽壁的任何特定的非直角。 然而，排放槽提供具有侧向富燃料区域的喷射模式，其中央燃料贫乏区域分开，通过减少喷雾模式产生的峰值燃烧火焰温度来抑制NOx的形成。

公开(公告)号：US4280792A

公开(公告)日：1981-07-28

申请号：US11041

申请日：1979-02-09

申请人： Edward O. Hartel ,  John N. Dale

发明人： Edward O. Hartel ,  John N. Dale

IPC分类号： F01D11/08 ,  F01D11/24 ,  F01D25/14 ,  F04D29/38

CPC分类号： F01D11/24 ,  F01D11/08 ,  F01D25/14 ,  Y02T50/675

摘要： A stationary air-cooled shroud or cylinder forming a portion of a turbine asembly includes an inner ring having a matrix of grooves formed therein, and an outer restraining ring covering the matrix so as to form a labyrinth of passageways for the flow of cooling air therethrough. A suspension ring cooperates with the inner ring and the restraint ring to define an entry flow path for the cooling air, and also a plenum chamber having an auxiliary outlet to provide film cooling air to the clearance spacing between the inner ring and the rotor blade tips. The fow of cool air through the labyrinth is operative to reduce the level and gradient of the metal tempertures in the shroud in order to obtain improved turbine blade tip clearance control.

摘要翻译： 形成涡轮机组件的一部分的固定式风冷罩或气缸包括：内圈，其内部形成有槽形矩阵;外圈限制环，覆盖基体，以形成迷宫式通道，用于使冷却空气流过其中 。 悬挂环与内环和约束环配合以限定用于冷却空气的入口流动路径，以及具有辅助出口的增压室，以将膜冷却空气提供到内环和转子叶片尖端之间的间隙 。 通过迷宫的冷空气的操作可以降低护罩中金属温度的水平和梯度，以获得改进的涡轮叶片顶端间隙控制。