Rotor-stress preestimating turbine control system
    1.
    发明授权
    Rotor-stress preestimating turbine control system 失效
    转子应力预估涡轮机控制系统

    公开(公告)号:US4228359A

    公开(公告)日:1980-10-14

    申请号:US929130

    申请日:1978-07-28

    IPC分类号: F01D19/02 F01K7/16

    CPC分类号: F01K7/165 F01D19/02

    摘要: The present stress in the turbine rotor is estimated at each control period, from the steam temperature and pressure at the turbine inlet. In addition, the future turbine inlet steam temperature or pressure is preestimated once every n.sub.T control cycles, for a given speed or load changing rate, making use of data concerning the changing rate of the turbine steam inlet temperature or pressure in relation with the change of the speed or load, which has been obtained by a learning of the past turbine operating condition. This future steam temperature or pressure at the turbine inlet is used as a factor for preestimating the future stress expected to be caused in the turbine rotor. The preestimation of the rotor stress is performed for a plurality of assumed speed or load changing rates. The turbine is controlled at the maximum speed increase-rate or load changing rate which would not cause the future stress preestimated over a given preestimation time to exceed a limit stress. An observation of the present stress is made at each control period to check whether the limit stress is not exceeded by the present stress.

    摘要翻译: 根据涡轮机入口处的蒸汽温度和压力,在每个控制周期估计涡轮转子中的当前应力。 另外,对于给定的速度或负荷变化率,在每个nT控制循环中预先设想未来的涡轮进口蒸汽温度或压力一次,利用关于涡轮机进气温度或压力变化率的数据与 通过学习过去的涡轮机操作条件而获得的速度或负载。 涡轮机入口处的未来蒸汽温度或压力被用作预先估计在涡轮转子中引起的未来应力的因素。 对于多个假想速度或负载变化率来执行转子应力的预测。 涡轮机以最大速度增加速率或负载变化率进行控制,这不会导致在给定预测时间内预测的未来应力超过极限应力。 在每个控制周期进行当前应力的观察,以检查当前应力是否超过极限应力。

    Method of controlling combustion
    2.
    发明授权
    Method of controlling combustion 失效
    燃烧控制方法

    公开(公告)号:US4528918A

    公开(公告)日:1985-07-16

    申请号:US601613

    申请日:1984-04-18

    摘要: A method of controlling combustion in a furnace of a boiler or the like having a burner for a main combustion and a burner for a reducing combustion in order to effect combustion for furnace denitrification. The method comprises the steps of: estimating the NO.sub.x generation amount from data on a flame formed by the main combustion; estimating the reducing agent generation amount from data on a flame formed by the reducing combustion; and controlling the flow rates of fuel and air supplied for the main and reducing combustions so that the amount of NO.sub.x emission as the difference between the NO.sub.x generation amount and the reducing agent generation amount is below a specified value. In practice, each of the NO.sub.x generation amount and the reducing agent generation amount is estimated from the flame pattern, the flame volume, the distance between the outlet of the burner concerned and the root of the flame concerned, etc., thereby to distributively control the flow rates of fuel and air supplied to each of the main combustion burner and the reducing combustion burner so that the amount of NO.sub.x emission is below a specified value.

    摘要翻译: 在具有用于主燃烧的燃烧器和用于还原燃烧的燃烧器的锅炉等的炉中控制燃烧的方法,以实现用于炉子反硝化的燃烧。 该方法包括以下步骤:从由主燃烧形成的火焰上的数据估计NOx产生量; 通过由还原燃烧形成的火焰上的数据估计还原剂产生量; 并且控制为主燃烧和还原燃烧供应的燃料和空气的流量,使得作为NOx生成量和还原剂产生量之间的差的NOx排放量低于规定值。 在实践中,根据火焰图案,火焰体积,燃烧器出口与所涉及的火焰根部之间的距离等来估计NOx产生量和还原剂产生量,从而分配控制 提供给主燃烧器和还原燃烧器的每一个的燃料和空气的流量使得NOx排放量低于规定值。

    System and method for adaptive control of process
    3.
    发明授权
    System and method for adaptive control of process 失效
    过程自适应控制的系统和方法

    公开(公告)号:US4319320A

    公开(公告)日:1982-03-09

    申请号:US41646

    申请日:1979-05-23

    摘要: A system and method for the adaptive control of a process in which a feed forward control signal corresponding to a process demand is calculated according to a predetermined algebraic function, while a feedback correction signal is calculated on the basis of an error of a process feedback signal indicative of an error of a controlled variable from a predetermined setting, and the controlled variable of the process is controlled on the basis of the sum of these two signals. The adaptive control is such that, when a set point of the function deviates from the actual process demand, a value corresponding to the error appears in the feedback correction signal, and this value is used for automatically modifying the function itself to ensure the adaptive control of the process. A determination is made whether or not the process is in the steady state and when steady state operation is determined, the function of the feed forward control signal is modified.

    摘要翻译: 一种用于自适应控制的系统和方法,其中根据预定的代数函数计算与处理要求对应的前馈控制信号,同时基于过程反馈信号的误差来计算反馈校正信号 指示来自预定设置的受控变量的误差,并且基于这两个信号的总和来控制处理的控制变量。 自适应控制使得当功能的设定点偏离实际过程需求时,反馈校正信号中出现与错误对应的值,该值用于自动修改功能本身以确保自适应控制 的过程。 确定过程是否处于稳定状态,并且当确定稳态操作时,前馈控制信号的功能被修改。

    Diagnostic device for use with automatic control systems
    4.
    发明授权
    Diagnostic device for use with automatic control systems 失效
    用于自动控制系统的诊断装置

    公开(公告)号:US4214301A

    公开(公告)日:1980-07-22

    申请号:US884235

    申请日:1978-03-07

    CPC分类号: G05B13/04 G05B2219/42307

    摘要: In an automatic control system, controls receive an input indicative of a deviation between feedback and demand signals and produce an output which in turn is applied to a plant to control it. A diagnostic device includes a model having an equivalent characteristic to the controls and receives the deviation signal. When a noise coming into the automatic control system is detected or when a deviation between the outputs of the model and controls is sufficiently small, no model operation is performed, and the output of the controls is determined as that of the model. However, when the deviation between the outputs of the model and the controls is large, the model is supplied with an input thereby performing a model operation. A resultant output of the model is then compared with the output of the controls to produce an alarm indicative of an abnormal state of the controls in accordance with a deviation between these outputs.

    摘要翻译: 在自动控制系统中,控制器接收指示反馈和需求信号之间的偏差的输入,并产生输出,该输出又被施加到工厂来控制它。 诊断装置包括具有对控件的等效特征的模型并接收偏差信号。 当检测到进入自动控制系统的噪声时,或者当模型和控制的输出之间的偏差足够小时,不执行模型操作,并且控制的输出被确定为模型的输出。 然而,当模型和控制的输出之间的偏差大时,向模型提供输入,从而执行模型操作。 然后将模型的合成输出与控制的输出进行比较,以根据这些输出之间的偏差产生指示控制的异常状态的报警。

    Combustion control method
    5.
    发明授权
    Combustion control method 失效
    燃烧控制方法

    公开(公告)号:US4622922A

    公开(公告)日:1986-11-18

    申请号:US743439

    申请日:1985-06-10

    摘要: A combustion control method wherein manipulated variables or the amounts of fuel and air in at least one combustion zone of a boiler are regulated so that both the amount of nitrogen oxides and the amount of unburned coal in the ash at an outlet of a burner furnace or at least one of them passes the regulation standards and satisfies the requirements for operating a plant. The method is characterized by varying the amounts of fuel and air in performing trial operations on manipulated variables to evaluate the nitrogen oxides at the furnace outlet, the unburned coal in the ash at the furnace outlet and the stability of combustion, and declaring as optimum manipulated variables those amounts of fuel and air used for performing the trial operations which achieve results such that the combustion is found to be stabilized, at least the nitrogen oxides at the furnace outlet satisfy the requirement and the thermal efficiency of the boiler is judged to be at the highest level by a boiler thermal efficiency judging section.

    摘要翻译: 一种燃烧控制方法,其中调节锅炉的至少一个燃烧区域中的操作变量或燃料和空气的量,以便在燃烧器炉的出口处的灰分中的氮氧化物的量和未燃烧的煤量, 其中至少有一个通过了监管标准,并满足了运行工厂的要求。 该方法的特征在于在对操作变量进行试验操作时改变燃料和空气的量,以评估炉出口处的氮氧化物,炉出口处的灰分中的未燃烧煤和燃烧的稳定性,并声明为最佳操纵 变量用于进行试验操作的燃料和空气的量,其实现结果使得发现燃烧稳定,至少炉出口处的氮氧化物满足要求,并且锅炉的热效率被判断为 锅炉热效率评估部门的最高水平。

    Friction stir spot joining device
    7.
    发明申请
    Friction stir spot joining device 有权
    摩擦搅拌点接合装置

    公开(公告)号:US20090159639A1

    公开(公告)日:2009-06-25

    申请号:US12317258

    申请日:2008-12-19

    IPC分类号: B23K20/12

    CPC分类号: B23K20/1265 B23K20/125

    摘要: There is provided a friction stir spot joining device wherein stirring-related members are unitized to form a unitized stirring unit and an opening is formed in a friction stir spot joining device body for housing the unitized stirring unit therein. A stirring motor, a stirring shaft and a power transmission mechanism are unitized to form a stirring unit, and bearings of an LM guide (registered trademark) are fixed to the stirring unit immediately under the stirring unit, and a ball nut is fixed to the back face of the stirring unit, wherein the friction stir spot joining device body is opened to form the opening at a rear upper portion through which the stirring unit is caused to move inside thereof.

    摘要翻译: 提供了一种摩擦搅拌点接合装置,其中搅拌相关构件被组合以形成一体化的搅拌单元,并且在摩擦搅拌点接合装置主体中形成开口,用于将其中的单元化搅拌单元容纳在其中。 将搅拌马达,搅拌轴和动力传递机构组合在一起形成搅拌单元,将LM导轨(注册商标)的轴承固定在搅拌机正下方的搅拌机上,将滚珠螺母固定在 搅拌单元的后表面,其中摩擦搅拌点接合装置主体被打开以在后部上部形成开口,通过该后部上部使搅拌单元在其内部移动。

    Pressure application driving unit of welding gun
    8.
    发明申请
    Pressure application driving unit of welding gun 审中-公开
    焊枪压力驱动单元

    公开(公告)号:US20090100950A1

    公开(公告)日:2009-04-23

    申请号:US11975513

    申请日:2007-10-19

    申请人: Yoshio Sato

    发明人: Yoshio Sato

    IPC分类号: B23K11/31

    CPC分类号: B23K11/315 Y10T74/18656

    摘要: The invention provides a pressure application driving unit of a welding gun that is safe, low in manufacturing cost, and compact as a whole by employing a hollow rotary shaft of the ordinary motor as it is and fixing a screw shaft fixing member to an end face of the rotary shaft, thereby reciprocating a pressure application shaft by the rotation of a screw shaft. The pressure application driving unit of a welding gun comprises a hollow through hole formed in a rotary shaft of a motor, a pressure application shaft having a portion pulled in the hollow through hole of the motor via a screw shaft to be driven by the motor, a hole for housing a tip end side of the screw shaft formed on the center portion of the pressure application shaft in the axial direction of the pressure application shaft, a nut at the end side of the pressure application shaft and a screw of the screw shaft are threaded with each other, the pressure application shaft side being nonrotatable, and a space formed in the hollow through hole and capable of housing the nut that is threaded with the screw shaft, wherein a screw shaft fixing member is fixed to tap holes formed on an end face of the rotary shaft of the motor and the screw shaft is fixed in the screw shaft fixing member.

    摘要翻译: 本发明提供了一种焊枪的压力施加驱动单元,其安全性低,制造成本低,并且通过采用普通电机的中空旋转轴将其整体紧凑化并将螺钉轴固定构件固定到端面 由此通过螺杆轴的旋转使压力施加轴往复运动。 焊枪的压力施加驱动单元包括形成在电动机的旋转轴中的中空通孔,压力施加轴,其具有经由电动机驱动的螺杆轴在电动机的中空通孔中拉动的部分, 用于容纳形成在加压轴的中心部分上的螺杆轴的前端侧的孔,在加压轴的轴向方向上的螺母,以及螺杆轴的螺钉 彼此螺纹连接,压力施加轴侧不可旋转,并且形成在中空通孔中的空间,并且能够容纳与螺纹轴螺纹连接的螺母,其中螺钉轴固定构件固定到形成在 电动机的旋转轴的端面和螺杆轴被固定在螺钉轴固定构件中。

    Friction stir spot joining device
    9.
    发明授权
    Friction stir spot joining device 失效
    摩擦搅拌点接合装置

    公开(公告)号:US07322509B2

    公开(公告)日:2008-01-29

    申请号:US11037809

    申请日:2005-01-18

    申请人: Yoshio Sato

    发明人: Yoshio Sato

    IPC分类号: B23K20/12

    摘要: There is provided a friction stir spot joining device to eliminate the generation of tipping torque caused by a pressing force by allowing the axis of a ball screw for generating the pressing force and the center of a shaft of a stirring motor to be coincident with each other, thereby allowing the device to be downsized and the device to effect joining operation with ease. The friction stir spot joining device comprises a ball nut fixed to the rear end side the stirring motor, a hole is defined in an output shaft of the stirring motor in which the ball screw is housed from a rear portion of the hole so as to be positioned in the hole, wherein a rotating force of the pressing motor is transmitted to the ball screw and the stirring motor is moved forward and backward by the ball nut threaded with the ball screw.

    摘要翻译: 提供了一种摩擦搅拌点接合装置,以通过使滚珠丝杠的轴线产生压力并使搅拌马达的轴的中心彼此一致来消除由压力产生的倾翻力矩的产生 从而允许设备小型化,并且该设备容易地进行连接操作。 摩擦搅拌点接合装置包括固定在搅拌马达的后端侧的滚珠螺母,在搅拌马达的输出轴中限定有孔,其中滚珠丝杠从孔的后部容纳在其中,以便是 定位在孔中,其中按压电动机的旋转力传递到滚珠丝杠,并且搅拌马达通过与滚珠丝杠螺纹连接的滚珠螺母前后移动。