Method and apparatus for the monitoring and control of combustion

    公开(公告)号:AU2004227359B2

    公开(公告)日:2009-07-30

    申请号:AU2004227359

    申请日:2004-03-31

    Abstract: A method of sensing a process utilizing a sensing apparatus consisting of more than one diode laser having select lasing frequencies, a multiplexer optically coupled to the outputs of the diode lasers with the multiplexer being further optically coupled to a pitch side optical fiber. Multiplexed laser light is transmitted through the pitch side optical fiber to a pitch optic operatively associated with a process chamber which may be a combustion chamber or the boiler of a coal or gas fired power plant. The pitch optic is oriented to project multiplexed laser output through the process chamber. Also operatively oriented with the process chamber is a catch optic in optical communication with the pitch optic to receive the multiplexed laser output projected through the process chamber. The catch optic is optically coupled to an optical fiber which transmits the multiplexed laser output to a demultiplexer. The demultiplexer demultiplexes the laser light and optically couples the select lasing frequencies of light to a detector with the detector being sensitive to one of the select lasing frequencies.

    Binning and tomography for high spatial resolution temperature and species concentration measurements

    公开(公告)号:AU2008256759A1

    公开(公告)日:2008-12-04

    申请号:AU2008256759

    申请日:2008-05-23

    Abstract: A method of absorption spectroscopy including obtaining absorption data at multiple wavelengths along more than one line-of-sight path through a quantity of gas of interest. The method further includes identifying more than one temperature and gas species concentration bin along the multiple line-of-sight paths and creating a map of temperature and gas species concentration. The map thus created will have at least two-dimensional information derived from select temperature and gas species concentration bins identified along more than one line-of-sight path. Apparatus for implementing the above method is also disclosed.

    METHOD AND APPARATUS FOR THE MONITORING AND CONTROL OF COMBUSTION

    公开(公告)号:CA2520862A1

    公开(公告)日:2004-10-21

    申请号:CA2520862

    申请日:2004-03-31

    Abstract: A sensing apparatus (10) consisting of more than one diode laser (12) having select lasing frequencies, a multiplexer (16) optically coupled to the outpu ts of the diode lasers with the multiplexer being further optically coupled to a pitch side optical fiber. Multiplexed laser light is transmitted through the pitch side optical fiber to a pitch optic (20) operatively associated with a process chamber (22) which may be a combustion chamber or the boiler of a co al or gas fired power plant. The pitch optic (20) is oriented to project multiplexed laser output through the process chamber. Also operatively oriented with the process chamber is a catch optic (24) in optical communication with the pitch optic to receive the multiplexed laser output projected through the process chamber. The catch optic (24) is optically coupled to an optical fiber which transmits the multiplexed laser output to a demultiplexer (28). The demultiplexer (28) demultiplexes the laser light and optically couples the select lasing frequencies of light to a detector (25) with the detector being sensitive to one of the select lasing frequencies.

    Method and apparatus for the monitoring and control of combustion

    公开(公告)号:AU2004227359A1

    公开(公告)日:2004-10-21

    申请号:AU2004227359

    申请日:2004-03-31

    Abstract: A method of sensing a process utilizing a sensing apparatus consisting of more than one diode laser having select lasing frequencies, a multiplexer optically coupled to the outputs of the diode lasers with the multiplexer being further optically coupled to a pitch side optical fiber. Multiplexed laser light is transmitted through the pitch side optical fiber to a pitch optic operatively associated with a process chamber which may be a combustion chamber or the boiler of a coal or gas fired power plant. The pitch optic is oriented to project multiplexed laser output through the process chamber. Also operatively oriented with the process chamber is a catch optic in optical communication with the pitch optic to receive the multiplexed laser output projected through the process chamber. The catch optic is optically coupled to an optical fiber which transmits the multiplexed laser output to a demultiplexer. The demultiplexer demultiplexes the laser light and optically couples the select lasing frequencies of light to a detector with the detector being sensitive to one of the select lasing frequencies.

    METHOD AND APPARATUS FOR MONITORING COMBUSTION PROPERTIES IN AN INTERIOR OF A BOILER
    15.
    发明申请
    METHOD AND APPARATUS FOR MONITORING COMBUSTION PROPERTIES IN AN INTERIOR OF A BOILER 审中-公开
    用于监测锅炉内部燃烧特性的方法和装置

    公开(公告)号:WO2010080892A3

    公开(公告)日:2010-09-02

    申请号:PCT/US2010020345

    申请日:2010-01-07

    CPC classification number: G01N21/84 F23M5/08 F23N5/082 G01B11/27 G01N21/39

    Abstract: A method of monitoring combustion properties in an interior of a boiler of the type having walls comprising a plurality of parallel steam tubes separated by a metal membrane. First and second penetrations are provided in the metal membrane between adjacent tubes on opposite sides of the boiler. A beam of light is projected through a pitch optic comprising a pitch collimating lens and a pitch relay lens, both residing outside the boiler interior. The pitch relay lens projects the beam through a penetration into the boiler interior. The beam of light is received with a catch optic substantially identical to the pitch optic residing outside the boiler interior. The strength of the collimated received beam of light is determined. At least one of the pitch collimating lens and the catch collimating lens may then be aligned to maximize the strength of the collimated received beam.

    Abstract translation: 一种在具有壁的锅炉内部监测燃烧性能的方法,所述锅炉包括由金属膜隔开的多个平行蒸汽管。 在锅炉相对侧的相邻管之间的金属膜中提供第一和第二穿透。 光束通过包括间距准直透镜和俯仰中继透镜的俯仰光学镜投影,两者都驻留在锅炉内部的外部。 俯仰继电器镜头通过穿透进入锅炉内部来投射光束。 光束被接收到与位于锅炉内部外部的俯仰光学器件基本相同的捕捉光学器件。 确定准直接收光束的强度。 间距准直透镜和捕捉准直透镜中的至少一个然后可以被对准以使准直的接收光束的强度最大化。

    METHOD AND APPARATUS FOR SPECTROSCOPIC MEASUREMENTS IN THE COMBUSTION ZONE OF A GAS TURBINE ENGINE
    16.
    发明申请
    METHOD AND APPARATUS FOR SPECTROSCOPIC MEASUREMENTS IN THE COMBUSTION ZONE OF A GAS TURBINE ENGINE 审中-公开
    气体涡轮发动机燃烧区光谱测量方法与装置

    公开(公告)号:WO2007087081A2

    公开(公告)日:2007-08-02

    申请号:PCT/US2006060572

    申请日:2006-11-06

    CPC classification number: G01M15/14 F01D21/003 F02C9/28 F05D2260/80

    Abstract: A method for measuring combustion parameters within a combustion zone of a gas turbine engine, the combustion zone being defined between an inner and outer casing. The method comprises transmitting a beam from a transmit optic optically coupled to a bore in the outer casing off a portion of the inner casing and receiving a portion of the beam reflected off the inner casing with a receiving optic optically coupled to a bore in the outer casing. An apparatus for practicing the method comprises a laser generating a beam and a transmitting/receiving optics pair, the transmitting/receiving optics pair being configured for operative association with a port in an outer casing of a gas turbine engine, whereby the transmitting/receiving optics are in optical communication by reflecting the beam off a portion of an inner casing.

    Abstract translation: 一种用于测量燃气涡轮发动机的燃烧区内的燃烧参数的方法,所述燃烧区被限定在内壳和外壳之间。 该方法包括从光学耦合到外壳中的孔光学耦合到外壳的一部分的发射光学器件的光束传输光束,并且接收从外壳反射的一部分光束,该接收光学器件光耦合到外壳中的孔 套管。 用于实施该方法的装置包括产生光束和发射/接收光学对的激光器,所述发射/接收光学对被配置为与燃气涡轮发动机的外壳中的端口可操作地相关联,由此所述发射/接收光学器件 通过将束离开内壳的一部分而进行光通信。

    IN SITU OPTICAL PROBE AND METHODS
    17.
    发明申请
    IN SITU OPTICAL PROBE AND METHODS 审中-公开
    原位光学探针和方法

    公开(公告)号:WO2009061586A2

    公开(公告)日:2009-05-14

    申请号:PCT/US2008079935

    申请日:2008-10-15

    Abstract: An apparatus for measuring combustion properties within a measurement area comprises an elongate housing having a housing wall, the elongate housing having a distal end. A transmitting and receiving optic pair resides within the distal end of the housing and optically communicates with a sensing region outside the housing. A reflective surface is cantilevered from the distal end of the housing to define the sensing region therebetween. The reflective surface is configured to reflect a beam in optical communication from the transmitting optic to the receiving optic through the sensing region. Also disclosed is a method of measuring a combustion property within a select zone of a measurement area.

    Abstract translation: 用于测量测量区域内的燃烧性质的设备包括具有壳体壁的细长壳体,细长壳体具有远端。 发射和接收光学元件对位于壳体的远端内并且与壳体外部的感测区域光学连通。 反射表面从壳体的远端悬伸以在其间限定感测区域。 反射表面被配置为反射通过感测区域从发射光学器件到接收光学器件的光学通信中的光束。 还公开了一种测量测量区域的选择区域内的燃烧特性的方法。

    METHOD AND APPARATUS FOR THE MONITORING AND CONTROL OF COMBUSTION
    18.
    发明申请
    METHOD AND APPARATUS FOR THE MONITORING AND CONTROL OF COMBUSTION 审中-公开
    用于监测和控制燃烧的方法和装置

    公开(公告)号:WO2004090496A3

    公开(公告)日:2005-05-19

    申请号:PCT/US2004010048

    申请日:2004-03-31

    Abstract: A sensing apparatus (10) consisting of more than one diode laser (12) having select lasing frequencies, a multiplexer (16) optically coupled to the outputs of the diode lasers with the multiplexer being further optically coupled to a pitch side optical fiber. Multiplexed laser light is transmitted through the pitch side optical fiber to a pitch optic (20) operatively associated with a process chamber (22) which may be a combustion chamber or the boiler of a coal or gas fired power plant. The pitch optic (20) is oriented to project multiplexed laser output through the process chamber. Also operatively oriented with the process chamber is a catch optic (24) in optical communication with the pitch optic to receive the multiplexed laser output projected through the process chamber. The catch optic (24) is optically coupled to an optical fiber which transmits the multiplexed laser output to a demultiplexer (28). The demultiplexer (28) demultiplexes the laser light and optically couples the select lasing frequencies of light to a detector (25) with the detector being sensitive to one of the select lasing frequencies.

    Abstract translation: 由具有选择的激光频率的多于一个的二极管激光器(12)组成的感测装置(10),多路复用器(16),光耦合到二极管激光器的输出端,多路复用器进一步光耦合到俯仰侧光纤。 复用激光通过节距侧光纤传输到与处理室(22)可操作地相关联的俯仰光学器件(20),所述处理室可以是燃烧室或煤或燃气发电厂的锅炉。 俯仰光学器件(20)被定向成将多路复用的激光输出投影通过处理室。 还与操作室一起操作地定向的是与俯仰光学器件光学通信的接收光学器件(24),以接收通过处理室投射的多路复用的激光输出。 捕获光学器件(24)光耦合到将多路复用的激光输出传输到解复用器(28)的光纤。 解复用器(28)将激光解复用并将选择的激光频率光耦合到检测器(25),检测器对选择的激光频率之一敏感。

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