Method and apparatus for profiling the bed of a furnace
    2.
    发明授权
    Method and apparatus for profiling the bed of a furnace 失效
    用于配置炉膛的方法和装置

    公开(公告)号:US5139412A

    公开(公告)日:1992-08-18

    申请号:US521077

    申请日:1990-05-08

    IPC分类号: F23M11/04 F23N5/08 F23N5/26

    CPC分类号: F23N5/082 F23N2029/20

    摘要: A method and apparatus for profiling the bed of a furnace involves the production of a digital image of the bed and background. The digital image is processed to determine transitions in the image which correspond to transitions between the bed and background and thereby to the boundary of the bed. Bed characteristics, such as the bed profile, the bed height, the slope of the bed and the volume of the bed are determined from the processed image. The image may be displayed for use in controlling the performance of a furnace. In addition, the determined bed characteristics may be compared with reference bed characteristics, with the differences being displayed, used in controlling the operation of the furnace, or in activating an indicator, such as an alarm, in the event the reference and determined bed characteristics differ by a threshold amount.

    摘要翻译: 用于分析炉床的方法和装置涉及生产床和数字图像的背景。 处理数字图像以确定图像中与床和背景之间的过渡相对应的过渡,从而到床的边界。 从处理的图像中确定床特性,例如床型,床高,床的斜率和床的体积。 可以显示图像以用于控制炉的性能。 此外,所确定的床特性可以与参考床特性进行比较,其中显示差异,用于控制炉的操作,或者在启动诸如报警器的指示器时,在参考和确定的床特性 不同阈值。

    Reverse Purge Flow Lenses
    3.
    发明申请

    公开(公告)号:US20170276595A1

    公开(公告)日:2017-09-28

    申请号:US15330131

    申请日:2015-02-11

    IPC分类号: G01N21/15 B08B17/02 B08B5/00

    摘要: An inspection lens, including a lens tube having a central longitudinal axis and a plurality of axially aligned optical elements, including an outermost element. A sheath surrounding the lens tube and defining there between an annular air flow channel. The sheath has a diversion nozzle at a distal end, terminating in a lens tip. The diversion nozzle is configured to divert the air flow in the annular channel inward toward the longitudinal axis and at a slight reverse angle of between 0-18 degrees relative to a plane normal to the axis and back toward the outermost element creating a reverse oblique impinging jet inside said lens tip that minimizes any recirculation zone in front of the outermost element.

    Sensing system for obtaining images and surface temperatures
    4.
    发明授权
    Sensing system for obtaining images and surface temperatures 有权
    用于获取图像和表面温度的感应系统

    公开(公告)号:US07938576B1

    公开(公告)日:2011-05-10

    申请号:US11818709

    申请日:2007-06-15

    IPC分类号: G01J1/16

    CPC分类号: G01J5/0014 G01J5/605

    摘要: A sensing system simultaneously obtains images and surface temperatures of processing tubes inside process heaters using an imaging sensor operating in the visible or infrared regions of the spectrum and capable of detecting visible or infrared radiation emitted or reflected from surfaces within the process heater, and of providing an image signal to a display or to an image processor. One or more single element infrared detectors viewing specific regions within the aforesaid image accurately measure the intensity of radiation emitted by surfaces within those specific regions so as to allow the temperature of the surfaces within those specific regions to be inferred.

    摘要翻译: 感测系统使用在该光谱的可见光或红外区域中操作的成像传感器同时获得处理加热器内的处理管的图像和表面温度,并且能够检测从处理加热器内的表面发射或反射的可见光或红外辐射,以及提供 向显示器或图像处理器发送图像信号。 观察上述图像内的特定区域的一个或多个单元件红外检测器精确地测量这些特定区域内的表面发射的辐射的强度,以便推断这些特定区域内的表面的温度。

    Acoustic pyrometer
    5.
    发明授权
    Acoustic pyrometer 有权
    声学高温计

    公开(公告)号:US06386755B1

    公开(公告)日:2002-05-14

    申请号:US09462325

    申请日:2000-01-05

    IPC分类号: G01K1122

    CPC分类号: G01K11/24

    摘要: An acoustic pyrometer measures the average gas temperature across a wide space of known distance, especially turbulent, high temperature gas loaded with caustic particulates. It includes an acoustic signal generator that generates a high amplitude acoustic signal with a short rise time and a detector positioned adjacent the signal generator that detects the onset of the acoustic signal in the signal generator and generates a first electrical signal corresponding in time to the onset of the acoustic signal in the signal generator. A receiver, positioned across the space from the signal generator, receives acoustic signals from the space and generates electrical signals corresponding to amplitude and frequency of the acoustic signals received in the receiver. A signal processor processes the electrical signals from the receiver to distinguish the onset of the acoustic signal from background noise in the space as detected in the receiver, and processes the electrical signals from the receiver to produce a distinct differentiation between background noise and the onset of the acoustic signal in the receiver. The signal processor then compares the time of the onset of the acoustic signal in the receiver with the onset of the acoustic signal in the signal generator to determine the transit time of the acoustic signal to traverse the space, and also calculates the temperature of the gas in the space based on the transit time.

    摘要翻译: 声学高温计测量已知距离的宽阔空间的平均气体温度,特别是装有苛性颗粒的湍流高温气体。 它包括声信号发生器,其产生具有短上升时间的高振幅声信号和位于信号发生器附近的检测器,其检测信号发生器中的声信号的开始,并产生在时间上对应于起始的第一电信号 的信号发生器中的声信号。 位于信号发生器的空间上的接收器从该空间接收声信号,并产生对应于在接收机中接收的声信号的幅度和频率的电信号。 信号处理器处理来自接收机的电信号,以区分在接收机中检测到的声信号与空间中的背景噪声的开始,并处理来自接收机的电信号,以产生背景噪声和起始点之间的明显差异 接收机中的声信号。 然后,信号处理器将接收机中的声信号的开始时间与信号发生器中的声信号的开始进行比较,以确定声信号穿过该空间的传播时间,并且还计算气体的温度 在空间中基于过境时间。

    Terahertz imaging
    6.
    发明授权
    Terahertz imaging 有权
    太赫兹成像

    公开(公告)号:US09414024B2

    公开(公告)日:2016-08-09

    申请号:US13261636

    申请日:2011-10-12

    摘要: An imaging system with the ability to produce clear images of deposits inside operating high temperature process equipment such as kraft recovery boilers and power utility boilers uses a terahertz/mm-wave imaging system. This system allows direct inspection capability and the ability to directly measure deposit thickness on tubes and other interior surfaces at all locations within the boiler and precipitator. Terahertz and mm-wave imaging systems employ active imaging in which a beam of terahertz or mm-wave radiation generated within the imaging system is used to illuminate a region of the scene under investigation. The reflected radiation is collected by a lens or mirror system and focused onto a detector that converts the collected radiation into an electrical signal. Both the illuminating beam and the receiving optics are scanned across the scene in a raster fashion to produce a time-varying signal that is converted into an image of the scene.

    摘要翻译: 能够在运行的高温过程设备(如牛皮纸回收锅炉和电力公用事业锅炉)内产生清晰的沉积物图像的成像系统使用太赫兹/毫米波成像系统。 该系统允许直接检测能力和直接测量锅炉和除尘器内所有位置的管和其他内表面上的沉积物厚度的能力。 太赫兹和毫米波成像系统采用主动成像,其中在成像系统内产生的太赫兹波束或毫米波辐射束用于照亮被调查场景的区域。 反射的辐射由透镜或镜子系统收集,并聚焦到将收集的辐射转换成电信号的检测器上。 照明光束和接收光学元件以光栅方式跨场景扫描,以产生被转换为场景图像的时变信号。

    Infrared imaging sensor
    7.
    发明授权
    Infrared imaging sensor 有权
    红外成像传感器

    公开(公告)号:US07956326B1

    公开(公告)日:2011-06-07

    申请号:US11787712

    申请日:2007-04-17

    IPC分类号: G01J5/02

    CPC分类号: G01N17/008 G01J2005/0077

    摘要: A system for detection and control of deposition on pendant tubes in recovery and power boilers includes one or more deposit monitoring sensors operating in infrared regions of about 4 or 8.7 microns and directly producing images of the interior of the boiler, or producing feeding signals to a data processing system for information to enable a distributed control system by which the boilers are operated to operate said boilers more efficiently. The data processing system includes an image pre-processing circuit in which a 2-D image formed by the video data input is captured, and includes a low pass filter for performing noise filtering of said video input. It also includes an image compensation system for array compensation to correct for pixel variation and dead cells, etc., and for correcting geometric distortion. An image segmentation module receives a cleaned image from the image pre-processing circuit for separating the image of the recovery boiler interior into background, pendant tubes, and deposition. It also accomplishes thresholding/clustering on gray scale/texture and makes morphological transforms to smooth regions, and identifies regions by connected components. An image-understanding unit receives a segmented image sent from the image segmentation module and matches derived regions to a 3-D model of said boiler. It derives a 3-D structure the deposition on pendant tubes in the boiler and provides the information about deposits to the plant distributed control system for more efficient operation of the plant pendant tube cleaning and operating systems.

    摘要翻译: 用于检测和控制回收和动力锅炉中的悬挂管上的沉积物的系统包括一个或多个在约4或8.7微米的红外区域中操作的沉积物监测传感器,并且直接产生锅炉内部的图像,或者产生供给信号到 数据处理系统,用于实现用于操作锅炉的分布式控制系统以更有效地操作所述锅炉的信息。 数据处理系统包括其中捕获由视频数据输入形成的2-D图像的图像预处理电路,并且包括用于对所述视频输入进行噪声滤波的低通滤波器。 它还包括用于阵列补偿的图像补偿系统,以校正像素变化和死细胞等,并且用于校正几何失真。 图像分割模块从图像预处理电路接收清洁的图像,用于将回收锅炉内部的图像分离为背景,垂直管和沉积。 它还实现了灰度/纹理的阈值化/聚类,并使形态学变换到平滑区域,并通过连接的组件识别区域。 图像理解单元接收从图像分割模块发送的分割图像,并将导出的区域匹配到所述锅炉的3-D模型。 它产生三维结构,沉积在锅炉的垂直管上,并提供关于沉积物的信息到工厂分布式控制系统,以更有效地操作植物吊灯清洁和操作系统。

    Sensing system for detection and control of deposition on pendant tubes in recovery and power boilers
    8.
    发明授权
    Sensing system for detection and control of deposition on pendant tubes in recovery and power boilers 失效
    用于检测和控制回收和动力锅炉悬挂管上沉积物的检测系统

    公开(公告)号:US07437025B2

    公开(公告)日:2008-10-14

    申请号:US11137089

    申请日:2005-05-24

    IPC分类号: G06K9/20 G06K9/00

    CPC分类号: G01N25/72 G01N17/008

    摘要: A system for detection and control of deposition on pendant tubes in recovery and power boilers includes one or more deposit monitoring sensors operating in infrared regions of about 4 or 8.7 microns and directly producing images of the interior of the boiler, or producing feeding signals to a data processing system for information to enable a distributed control system by which the boilers are operated to operate said boilers more efficiently. The data processing system includes an image pre-processing circuit in which a 2-D image formed by the video data input is captured, and includes a low pass filter for performing noise filtering of said video input. It also includes an image compensation system for array compensation to correct for pixel variation and dead cells, etc., and for correcting geometric distortion. An image segmentation module receives a cleaned image from the image pre-processing circuit for separating the image of the recovery boiler interior into background, pendant tubes, and deposition. It also accomplishes thresholding/clustering on gray scale/texture and makes morphological transforms to smooth regions, and identifies regions by connected components. An image-understanding unit receives a segmented image sent from the image segmentation module and matches derived regions to a 3-D model of said boiler. It derives a 3-D structure the deposition on pendant tubes in the boiler and provides the information about deposits to the plant distributed control system for more efficient operation of the plant pendant tube cleaning and operating systems.

    摘要翻译: 用于检测和控制回收和动力锅炉中的悬挂管上的沉积物的系统包括一个或多个在约4或8.7微米的红外区域中操作的沉积物监测传感器,并且直接产生锅炉内部的图像,或者产生供给信号到 数据处理系统,用于实现用于操作锅炉的分布式控制系统以更有效地操作所述锅炉的信息。 数据处理系统包括其中捕获由视频数据输入形成的2-D图像的图像预处理电路,并且包括用于对所述视频输入进行噪声滤波的低通滤波器。 它还包括用于阵列补偿的图像补偿系统,以校正像素变化和死细胞等,并且用于校正几何失真。 图像分割模块从图像预处理电路接收清洁的图像,用于将回收锅炉内部的图像分离为背景,垂直管和沉积。 它还实现了灰度/纹理的阈值化/聚类,并使形态学变换到平滑区域,并通过连接的组件识别区域。 图像理解单元接收从图像分割模块发送的分割图像,并将导出的区域匹配到所述锅炉的3-D模型。 它产生三维结构,沉积在锅炉的垂直管上,并提供关于沉积物的信息到工厂分布式控制系统,以更有效地操作植物吊灯清洁和操作系统。

    Low pressure acoustic pyrometer signal generator
    9.
    发明授权
    Low pressure acoustic pyrometer signal generator 失效
    低压声学高温计信号发生器

    公开(公告)号:US07434988B1

    公开(公告)日:2008-10-14

    申请号:US11436733

    申请日:2006-05-17

    IPC分类号: G01K11/22

    CPC分类号: G01K11/22

    摘要: An acoustic pyrometer measures the average gas temperature across a space of known distance, especially turbulent, high temperature gas loaded with caustic particulates. It includes an acoustic signal generator that generates a high amplitude acoustic signal with a short rise time The acoustic signal generator includes an outer tank closed at top and bottom ends by top and bottom end walls and enclosing an outer chamber. A cylinder is supported within the tank and has top and bottom opposed ends. A mid-plate extends across the cylinder and defines the bottom end, and an axial opening in the mid-plate receives a shaft of a piston assembly having an upper piston and a lower piston at ends of the shaft. A throat is attached to the bottom end, and receives the lower piston. The lower piston seals the throat when received in the throat. The upper piston is slidable in the cylinder under influence of air pressure. A pneumatic operating system for charging said cylinder and said outer chamber with gas at a moderate pressure includes a coupling for connection to a source of gas pressure and a remotely operated vent to allow pressurized gas in the cylinder to escape, thereby allowing the piston assembly to open said throat and allow pressurized gas to escape and produce a shock wave for use by the acoustic pyrometer.

    摘要翻译: 声学高温计测量已知距离的空间中的平均气体温度,特别是装有苛性颗粒的湍流高温气体。 它包括产生具有短的上升时间的高振幅声信号的声信号发生器。声信号发生器包括一顶部和底端由顶壁和底端封闭并封闭一外腔的外箱。 缸体被支撑在罐内并且具有顶部和底部相对的端部。 中间板延伸穿过气缸并限定底端,并且中间板中的轴向开口接收活塞组件的轴,该活塞组件的轴在轴的端部具有上活塞和下活塞。 喉部连接到底端,并接收下活塞。 当喉部接收时,下活塞密封喉咙。 上活塞在空气压力的影响下可在气缸中滑动。 用于以中等压力的气体对所述气缸和所述外室充气的气动操作系统包括用于连接到气体压力源的联接器和远程操作的通风口,以允许气缸中的加压气体逸出,从而允许活塞组件 打开喉咙并允许加压气体逸出并产生冲击波,以供声学高温计使用。

    Acoustic pyrometer
    10.
    发明授权
    Acoustic pyrometer 有权
    声学高温计

    公开(公告)号:US06834992B2

    公开(公告)日:2004-12-28

    申请号:US10657460

    申请日:2003-09-08

    IPC分类号: G01K1122

    CPC分类号: G01K11/24

    摘要: An acoustic pyrometer measures the average gas temperature across a wide space of known distance, especially turbulent, high temperature gas loaded with caustic particulates. It includes an acoustic signal generator that generates a high amplitude acoustic signal with a short rise time and a detector positioned adjacent the signal generator that detects the onset of the acoustic signal in the signal generator and generates a first electrical signal corresponding in time to the onset of the acoustic signal in the signal generator. A receiver, positioned across the space from the signal generator, receives acoustic signals from the space and generates electrical signals corresponding to amplitude and frequency of the acoustic signals received in the receiver. A signal processor processes the electrical signals from the receiver to distinguish the onset of the acoustic signal from background noise in the space as detected in the receiver, and processes the electrical signals from the receiver to produce a distinct differentiation between background noise and the onset of the acoustic signal in the receiver. The signal processor then compares the time of the onset of the acoustic signal in the receiver with the onset of the acoustic signal in the signal generator to determine the transit time of the acoustic signal to traverse the space, and also calculates the temperature of the gas in the space based on the transit time.