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公开(公告)号：US5636977A
公开(公告)日：1997-06-10
申请号：US322755
申请日：1994-10-13
CPC分类号： F23C9/00 , F23C6/047 , F23C9/08 , F23D14/36 , F23C2201/20 , F23C2201/30
摘要： A burner apparatus and method for reducing nitrogen oxides that are formed during combustion of gaseous fuel. Primary gaseous fuel and excess oxidant are premixed to form a fuel/oxidant mixture which is introduced into and combusted within a primary combustion zone. Primary combustion products are introduced into a secondary combustion zone. Secondary gaseous fuel is also introduced into the secondary combustion zone and is preferably mixed with the primary combustion products. The mixture of secondary gaseous fuel and primary combustion products is combusted in a secondary combustion zone. A portion of the secondary combustion products are internally recirculated into the secondary combustion zone. The overall combustion products can be externally recirculated and introduced into the primary combustion zone. A portion of the fuel/oxidant mixture, with or without the recirculated overall combustion products, can be bypassed around the primary combustion zone and introduced into the secondary combustion zone.
摘要翻译： 一种用于还原在气体燃料燃烧期间形成的氮氧化物的燃烧器装置和方法。 初级气体燃料和过量的氧化剂被预混合以形成燃料/氧化剂混合物，其被引入并在主燃烧区内燃烧。 初级燃烧产物被引入二次燃烧区。 次级气体燃料也被引入到二次燃烧区域中，并且优选与初级燃烧产物混合。 二次气体燃料和一次燃烧产物的混合物在二次燃烧区燃烧。 二次燃烧产物的一部分在内部再循环进入二次燃烧区。 总体燃烧产物可以从外部再循环并被引入主燃烧区。 具有或不具有再循环的总燃烧产物的燃料/氧化剂混合物的一部分可以围绕主燃烧区旁路并被引入二次燃烧区。
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公开(公告)号：US4365508A
公开(公告)日：1982-12-28
申请号：US174595
申请日：1980-08-01
申请人： Peter J. Loftus
发明人： Peter J. Loftus
IPC分类号： G01N3/20
CPC分类号： G01N3/20
摘要： A limpness detector for examining documents at high speed. A pair of rollers having star-like cross-sectional configurations comprised of substantially V-shaped projections and interspaced V-shaped grooves are cooperatively arranged so that the projections of one of said rollers at least partially enter into the grooves of the other. The rollers are rotated in a synchronous manner. One swingably mounted roller is preferably yieldably urged toward the other. Documents to be examined are fed between the rollers and, depending upon their relative limpness or stiffness, serve to "lift" the swingable roller such that the amount of displacement between the rollers is a function of document limpness. Sensor means is utilized to detect the amount of displacement. Threshold detection circuitry is provided to facilitate calssification of the documents into limp, moderately stiff and stiff documents, for example. The apparatus may also be utilized to detect the presence of overlapping and/or multiply-fed documents.
摘要翻译： 用于高速检查文件的柔软度检测器。 一对具有星形横截面构造的辊由大致V形的突起和间隔的V形槽组成，其中一个所述辊的突起至少部分地进入到另一个的槽中。 辊以同步的方式旋转。 一个可摆放安装的辊优选地可屈服地被推向另一个。 待检查的文件被馈送在辊之间，并且根据它们的相对柔软度或刚度，用于“提升”可摆动辊，使得辊之间的位移量是文件柔软度的函数。 传感器装置用于检测位移量。 提供了阈值检测电路，以便于例如将文件卷曲成柔软，中度刚硬的文件。 该装置还可以用于检测重叠和/或多重馈送的文档的存在。
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公开(公告)号：US06672858B1
公开(公告)日：2004-01-06
申请号：US09907793
申请日：2001-07-18
申请人： Charles E. Benson , Roberto O. Pellizzari , Peter J. Loftus , Dennis L. Juedes , Richard R. Martin , Earl Ray Wade , Paul M. Rodden
发明人： Charles E. Benson , Roberto O. Pellizzari , Peter J. Loftus , Dennis L. Juedes , Richard R. Martin , Earl Ray Wade , Paul M. Rodden
IPC分类号： F23M300
CPC分类号： F23C6/047 , F23C9/08 , F23C2202/20 , F23C2900/09002 , F23D2900/14124
摘要： An improved process for heating furnaces using a burner design that produces very low level of undesirable nitrogen oxides is provided. The process recirculates a large volume of furnaces gases back to the burner where it is mixed with fuel gas in a plurality of recirculation ports prior to combusting with air in a primary combustion zone. Dispersion of the fuel gas in 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： 提供了使用产生非常低水平的不期望的氮氧化物的燃烧器设计的加热炉的改进方法。 该过程将大量的炉子气体再循环回到燃烧器，在燃烧器中，在与主燃烧区域中的空气燃烧之前，其与多个再循环端口中的燃料气体混合。 据信燃料气体在再循环的炉内气体中的分散会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。
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公开(公告)号：US4761002A
公开(公告)日：1988-08-02
申请号：US820981
申请日：1986-01-21
摘要： Apparatus for counting and stacking sheets in which document length and multiple fed sheets are detected by examining sheet transmissivity. The light directed through moving sheets fed one at a time through a sensor location is modulated according to sheet transmissivity. The signal for each sheet is compared against the signal for the prior sheet to determine the feeding of multiple sheets. Sheet length is determined through the use of a pair of sensors which provide for counting of sheets which may be fed in a skewed manner. A skew value is used to modify the value obtained when measuring document length to permit accurate counting of both skewed and unskewed sheets. Both hardware and software techniques are utilized to obtain the desired results.
摘要翻译： 用于计数和堆叠其中通过检查片材透射率来检测文件长度和多个馈送的片材的片材的装置。 通过传感器位置一次馈送的移动片材的光根据片材透射率进行调制。 将每个纸张的信号与先前纸张的信号进行比较，以确定多张纸张的进纸。 纸张长度通过使用一对传感器来确定，该传感器提供可以以倾斜方式进给的纸张的计数。 使用偏斜值来修改测量文件长度时获得的值，以允许精确计数倾斜和未被打印的纸张。 利用硬件和软件技术来获得所需的结果。
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5.发明授权Method and apparatus for detecting abnormal thickness conditions such as folded and/or missing corners of moving sheets 失效用于检测异常厚度条件（例如移动片材的折叠和/或丢失角落）的方法和装置
公开(公告)号：US4426785A
公开(公告)日：1984-01-24
申请号：US336790
申请日：1982-01-04
摘要： Sheets moving in a feed direction and arranged at spaced intervals are fed through nips arranged to rollingly engage opposing sides of the sheet, each nip being formed by a roller rotating about a fixed axis and a cooperating swingably mounted roller. Resilient adjustable biasing means urges an assembly upon which the swingably mounted roller is pivotally mounted, as well as an arm forming part of the pivotally mounted roller assembly, in a first direction. A sensor is positioned adjacent the free end of said arm. Sheets moving through said nip cause displacement of said pivotal assembly against the biasing force in accordance with the thickness of the sheet passing through the nip. The biasing means comprises a thick, and accurate resilient element designed to permit the roller assembly to follow even abrupt thickness changes rapidly and accurately without experiencing overshoot or undershoot. The sensor senses the position of a field generating element mounted upon the free end of said arm to provide a signal representative of the size and direction of the displacement. The output signals developed during the passage of a sheet through said nips are compared against a threshold. The sensors are periodically examined to provide an offset signal for automatically compensating for changes in output signal strength due to changes in temperature, the new zero offset being generated during the time that no sheet, is passing between the aforesaid nips. The offset signal is combined with the sensor signal to provide a compensated sensor signal which is then compared with a reference level representing a predetermined thickness.
摘要翻译： 以进给方向移动并以间隔间隔布置的片材通过布置成滚动地接合片材的相对侧的咬口进给，每个辊隙由围绕固定轴线旋转的辊和可配合的可摆动地安装的辊形成。 弹性可调的偏压装置促使摆动安装的滚轮枢转地安装在其上的组件以及在第一方向上形成枢转地安装的滚筒组件的一部分的臂。 传感器位于所述臂的自由端附近。 移动通过所述压区的板根据穿过辊隙的片材的厚度，导致所述枢转组件抵抗偏置力的位移。 偏置装置包括厚而精确的弹性元件，其设计成允许辊组件快速且准确地跟随甚至突然的厚度变化，而不会经历过冲或下冲。 传感器感测安装在所述臂的自由端上的场发生元件的位置，以提供表示位移的尺寸和方向的信号。 将纸张通过所述胶印期间产生的输出信号与阈值进行比较。 周期性地检查传感器以提供偏移信号，用于自动补偿由于温度变化引起的输出信号强度的变化，新的零点偏移是在上述压区之间没有纸张通过的时间内产生的。 偏移信号与传感器信号组合以提供经补偿的传感器信号，然后将其与表示预定厚度的参考电平进行比较。
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公开(公告)号：US4146218A
公开(公告)日：1979-03-27
申请号：US797450
申请日：1977-05-16
申请人： Peter J. Loftus , John A. DiBlasio
发明人： Peter J. Loftus , John A. DiBlasio
CPC分类号： G06K13/16
摘要： Apparatus for feeding, separating, counting and stacking documents at high speed.
摘要翻译： 用于高速进给，分离，计数和堆放文件的装置。
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公开(公告)号：US10054321B2
公开(公告)日：2018-08-21
申请号：US15065446
申请日：2016-03-09
CPC分类号： F24F3/16 , A61L9/00 , A61L9/20 , A61L2209/212 , B60H1/3232 , B60H3/0071 , B60H3/0078 , F24F2003/1667 , F24F2003/1685
摘要： An apparatus and method for cleaning contaminated air in an enclosed space, such as a transportation trailer or a shipping container. An air mover in the space circulates contaminated atmosphere from an area of low pressure to an area of higher pressure. The resulting pressure differential is used to draw a reverse, partial air flow through an air cleaning device. The repeated cycling of a portion of airflow results in cleaning of the atmosphere and a general reduction of the contaminant from the enclosed space.
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公开(公告)号：US20160265796A1
公开(公告)日：2016-09-15
申请号：US15065446
申请日：2016-03-09
IPC分类号： F24F3/16
CPC分类号： F24F3/16 , A61L9/00 , A61L9/20 , A61L2209/212 , F24F2003/1667 , F24F2003/1685
摘要： An apparatus and method for cleaning contaminated air in an enclosed space, such as a transportation trailer or a shipping container. An air mover in the space circulates contaminated atmosphere from an area of low pressure to an area of higher pressure. The resulting pressure differential is used to draw a reverse, partial air flow through an air cleaning device. The repeated cycling of a portion of airflow results in cleaning of the atmosphere and a general reduction of the contaminant from the enclosed space.
摘要翻译： 用于清洁封闭空间中的污染空气的装置和方法，例如运输拖车或运输集装箱。 空间中的空气移动器将受污染的气氛从低压区域循环到较高压力的区域。 所产生的压力差用于通过空气净化装置抽出反向的部分气流。 一部分气流的重复循环导致大气的清洁和污染物从封闭空间的普遍减少。
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公开(公告)号：US06007325A
公开(公告)日：1999-12-28
申请号：US20359
申请日：1998-02-09
CPC分类号： F23M5/025 , F23C6/047 , F23C9/006 , F23C2201/20 , F23C2201/30 , F23D2900/00008
摘要： A gas fired burner is provided for use in applications such as chemical process furnaces for process heaters in refineries and chemical plants, and the like. The burner is provided with a plurality of fuel gas inlets for enabling manipulation of the flame shape and combustion characteristics of the burner, based upon variation in the distribution of fuel gas between the various fuel gas inlets.A combination pilot and flame holder for a burner, such as may be used in process heaters and furnaces for refineries, chemical plants and the like, is also provided. The pilot is mounted atop a supply pipe for premixed fuel and air, which is positioned in the bore of a burner quarl. The pilot includes a radially outwardly extending flange which is upstream of a surface combustion flame holder for establishing a radially directed surface combustion flame.The present invention also provides a low-emissions burner and pilot system for use in such process heaters and furnaces.
摘要翻译： 提供燃气燃烧器用于诸如炼油厂和化工厂中的工艺加热器的化学处理炉等应用。 燃烧器设置有多个燃料气体入口，用于基于各种燃料气体入口之间燃料气体分布的变化来操纵燃烧器的火焰形状和燃烧特性。 还提供了用于燃烧器的组合导管和火焰保持器，诸如可以用于工艺加热器和用于炼油厂，化工厂等的炉子。 飞行员安装在用于预混合燃料和空气的供应管上方，预定燃料和空气位于燃烧器膛孔中。 飞行员包括径向向外延伸的凸缘，其在表面燃烧火焰保持器的上游，用于建立径向指向的表面燃烧火焰。 本发明还提供了一种用于这种工艺加热器和炉中的低排放燃烧器和先导系统。
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公开(公告)号：US5993193A
公开(公告)日：1999-11-30
申请号：US20362
申请日：1998-02-09
CPC分类号： F23C9/006 , F23C6/047 , F23C2201/20 , F23C2201/30 , F23C2202/20 , F23D2900/00008
摘要： A gas fired burner is provided for use in applications such as chemical process furnaces for process heaters in refineries and chemical plants, and the like. The burner is provided with a plurality of fuel gas inlets for enabling manipulation of the flame shape and combustion characteristics of the burner, based upon variation in the distribution of fuel gas between the various fuel gas inlets.A combination pilot and flame holder for a burner, such as may be used in process heaters and furnaces for refineries, chemical plants and the like, is also provided. The pilot is mounted atop a supply pipe for premixed fuel and air, which is positioned in the bore of a burner quarl. The pilot includes a radially outwardly extending flange which is upstream of a surface combustion flame holder for establishing a radially directed surface combustion flame.The present invention also provides a low-emissions burner and pilot system for use in such process heaters and furnaces.
摘要翻译： 提供燃气燃烧器用于诸如炼油厂和化工厂中的工艺加热器的化学处理炉等应用。 燃烧器设置有多个燃料气体入口，用于基于各种燃料气体入口之间燃料气体分布的变化来操纵燃烧器的火焰形状和燃烧特性。 还提供了用于燃烧器的组合导管和火焰保持器，诸如可以用于工艺加热器和用于炼油厂，化工厂等的炉子。 飞行员安装在用于预混合燃料和空气的供应管上方，预定燃料和空气位于燃烧器膛孔中。 飞行员包括径向向外延伸的凸缘，其在表面燃烧火焰保持器的上游，用于建立径向指向的表面燃烧火焰。 本发明还提供了一种用于这种工艺加热器和炉中的低排放燃烧器和先导系统。
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