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公开(公告)号：US4622922A
公开(公告)日：1986-11-18
申请号：US743439
申请日：1985-06-10
申请人： Hisanori Miyagaki , Toshihiko Higashi , Atsushi Yokogawa , Yoshihiro Shimada , Nobuo Kurihara , Mitsuyo Nishikawa , Yoshio Sato , Atsumi Watanabe , Yasuo Morooka
发明人： Hisanori Miyagaki , Toshihiko Higashi , Atsushi Yokogawa , Yoshihiro Shimada , Nobuo Kurihara , Mitsuyo Nishikawa , Yoshio Sato , Atsumi Watanabe , Yasuo Morooka
CPC分类号： F23N5/082 , F23N1/022 , F23N2023/40 , F23N2025/08 , F23N2025/10 , F23N2025/16 , F23N2027/20 , F23N2037/16 , F23N2039/02 , F23N5/18
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。
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公开(公告)号：US4620491A
公开(公告)日：1986-11-04
申请号：US726392
申请日：1985-04-23
申请人： Mitsuyo Nishikawa , Nobuo Kurihara , Yoshio Sato , Atsumi Watanabe , Toshihiko Higashi , Hisanori Miyagaki , Atsushi Yokogawa , Yoshihiro Shimada
发明人： Mitsuyo Nishikawa , Nobuo Kurihara , Yoshio Sato , Atsumi Watanabe , Toshihiko Higashi , Hisanori Miyagaki , Atsushi Yokogawa , Yoshihiro Shimada
CPC分类号： F23N5/082 , F23N5/003 , F23N2029/20
摘要： This invention relates to the supervision of a combustion state of a combustion furnace. A flame formed concentrically with the direction of a fuel jetted from a burner being the center is measured from its side, and two oxidizing flame zones as high luminance zones are extracted. Using the shape parameters of the flame, an index for reducing NOx and unburnt components in ash are calculated and estimated so as to supervise the combustion state. The positions or centroids of the flames and the distance between the centroids are used as the shape parameters, and the flame shape is divided into two zones for easy display of each zone.
摘要翻译： 本发明涉及对燃烧炉燃烧状态的监督。 从其侧面测量与从作为中心的燃烧器喷射的燃料的方向同心地形成的火焰，并且提取两个作为高亮度区域的氧化火焰区域。 使用火焰的形状参数，计算和估计用于减少灰分中的NOx和未燃烧成分的指标，以监督燃烧状态。 将火焰的位置或重心与质心之间的距离用作形状参数，并将火焰形状分为两个区域，以便于显示每个区域。
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公开(公告)号：US4528918A
公开(公告)日：1985-07-16
申请号：US601613
申请日：1984-04-18
申请人： Yoshio Sato , Nobuo Kurihara , Hiroshi Matsumoto , Tadayoshi Saito , Mitsuyo Nishikawa , Toshihiko Higashi
发明人： Yoshio Sato , Nobuo Kurihara , Hiroshi Matsumoto , Tadayoshi Saito , Mitsuyo Nishikawa , Toshihiko Higashi
CPC分类号： F23N5/003 , F23N1/022 , F23N5/082 , F23N2021/08 , F23N2029/18 , F23N2035/12 , F23N2039/02 , F23N5/08
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。
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4.发明授权
公开(公告)号：US4426641A
公开(公告)日：1984-01-17
申请号：US249469
申请日：1981-03-31
CPC分类号： G01H1/003
摘要： From the viewpoint of the preventive maintenance operation of a rotary machine, it is a very important subject to monitor the shaft vibration of the rotary machine and grasp the operating state of the machine. This invention relates to input processings in the case of executing the frequency analysis of a shaft vibration signal by digital processings.This invention describes the rotational frequency synchronization of a sampling frequency, the phase synchronization of the rotary machine to a reference phase, the relationship between an analytical wave number and a sample nunber, etc. in that case.
摘要翻译： 从旋转机械的预防性维护操作的观点出发，监视旋转机械的轴振动并抓住机器的运转状态是非常重要的课题。 本发明涉及通过数字处理执行轴振动信号的频率分析的情况下的输入处理。 本发明在这种情况下描述了采样频率的旋转频率同步，旋转机器相对于参考相位的相位同步，分析波数与样本校正子之间的关系等。
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5.发明授权
公开(公告)号：US4437163A
公开(公告)日：1984-03-13
申请号：US248846
申请日：1981-03-30
摘要： A method of symptom diagnosis by continuously detecting vibration of the shaft of a rotary machine and monitoring a signal indicative of detected shaft vibration for the diagnosis of the operating condition of the rotary machine. In the method, a symptom of unusual operation of the rotary machine is diagnosed. The rotation speed range of the rotary machine is classified into a safety region, an alarm region and a trip region depending on the level of the shaft vibration signal. According to the disclosed method, symptom diagnostic regions are established within the safety region at time intervals of a symptom diagnostic period, and whether or not the level of the detected shaft vibration signal deviates from that of the symptom diagnostic regions is continuously monitored for the diagnosis of a symptom of unusual operation of the rotary machine.
摘要翻译： 通过连续地检测旋转机器的轴的振动并监视表示检测到的轴振动的信号来诊断旋转机器的操作状态的症状诊断方法。 在该方法中，诊断出旋转机器异常操作的症状。 旋转机械的旋转速度范围根据轴振动信号的等级分为安全区域，报警区域和跳闸区域。 根据所公开的方法，在症状诊断期的时间间隔内在安全区域内建立症状诊断区域，并且连续监测检测到的轴振动信号与症状诊断区域的水平是否偏离诊断的水平 是旋转机器异常操作的症状。
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公开(公告)号：US4555800A
公开(公告)日：1985-11-26
申请号：US527847
申请日：1983-08-30
申请人： Mitsuyo Nishikawa , Nobuo Kurihara
发明人： Mitsuyo Nishikawa , Nobuo Kurihara
CPC分类号： F23N5/082 , F23N5/003 , F23N2029/20
摘要： A method of diagnosing a combustion state in a furnace of a boiler wherein the shape of the root part of a flame (namely, the part closer to the fuel jet port of a burner) is picked up by an image sensor or the like, and the combustion state is diagnosed from the shape. Concretely, the relationships between the shapes of the root parts of flames and the combustion states of the furnace, e.g., the amount of CO or the amount of NOx are experimentally or empirically ensured and are stored in advance, one of the patterns of the stored flame shapes is selected on the basis of the shape of the root part of the flame actually observed, and the combustion state of the furnace is judged the combustion state of the selected flame shape.
摘要翻译： 一种诊断锅炉炉内燃烧状态的方法，其中火焰根部的形状（即靠近燃烧器的燃料喷射口的部分）被图像传感器等拾取， 从形状诊断燃烧状态。 具体地，火焰根部的形状与炉的燃烧状态之间的关系，例如CO的量或NOx的量是经实验或经验确保的，并且预先存储，存储的模式之一 基于实际观察到的火焰根部的形状来选择火焰形状，并且将炉的燃烧状态判断为所选火焰形状的燃烧状态。
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公开(公告)号：US4352293A
公开(公告)日：1982-10-05
申请号：US180583
申请日：1980-08-25
摘要： In a rotary machine mounted on a rotary shaft journaled in journal bearings, a source of unusual vibration of the rotary machine is identified on the basis of the results of the steps of (1) subjecting a shaft vibration signal to frequency analysis for analyzing its frequency distribution, and (2) analyzing the amplitude of the shaft vibration signal and the variation rate of a phase signal of a component related to the shaft rotation frequency among the frequency components of the shaft vibration signal. The present invention is usefully applicable to diagnosis of vibration of a rotary shaft of a large-size turbine or a generator in a power plant by continuously monitoring the shaft vibration for immediately automatically detecting unusual vibration of the rotary machine in the event of occurrence of such unusual vibration. The usefulness is more enhanced when the signal indicative of vibration of the rotary shaft is converted into a digital signal to be analyzed by a digital computer which identifies the source of unusual vibration.
摘要翻译： 在安装在轴颈轴承上的旋转轴上的旋转机械中，基于以下步骤的结果来确定旋转机器的异常振动源：（1）使轴振动信号进行频率分析以分析其频率 分布，以及（2）分析轴振动信号的振幅和轴振动信号的频率分量中与轴旋转频率有关的分量的相位信号的变化率。 本发明可有效地应用于通过连续地监测轴振动来立即自动检测旋转机械的异常振动的情况下，发电厂中的大型涡轮机或发电机的旋转轴的振动的诊断。 异常振动。 当指示旋转轴的振动的信号被转换成数字信号以由识别异常振动源的数字计算机分析时，有用性更强。
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8.发明授权Method of controlling operation of rotary machines by diagnosing abnormal conditions 失效通过诊断异常情况控制旋转机器的运行方法
公开(公告)号：US4302813A
公开(公告)日：1981-11-24
申请号：US13820
申请日：1979-02-22
IPC分类号： G01M99/00 , F01D19/00 , F01D21/14 , G01H1/00 , G01H1/06 , G01H17/00 , G01R23/02 , G01R23/16 , G06F15/46 , G01N29/00
摘要： The present invention relates to a method of controlling the operation of large rotary machines such as steam turbines and generators in a thermal power plant or nuclear power plant. More specifically, the invention relates to a method of controlling such operation as increasing or decreasing the speed of the rotary machines or stopping the operation of the rotary machines, by detecting vibration at the time of starting the operation or during the steady-speed operation, by analyzing the detected vibration signals to determine whether the operation is in normal condition or abnormal condition, and by detecting or forecasting the cause in case the operation is in abnormal condition.
摘要翻译： 本发明涉及一种在火力发电厂或核电站中控制诸如蒸汽轮机和发电机的大型旋转机器的操作的方法。 更具体地说，本发明涉及一种通过检测起动操作时的振动或稳速运转时，控制旋转机械的速度的上升或降低或停止旋转机械的运转的方法， 通过分析检测到的振动信号来确定操作是否处于正常状态或异常状态，并且在操作异常的情况下通过检测或预测原因。
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公开(公告)号：US4319320A
公开(公告)日：1982-03-09
申请号：US41646
申请日：1979-05-23
CPC分类号： F01K13/02 , F23N1/10 , G05B13/0205 , G05B13/041
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。
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公开(公告)号：US4214301A
公开(公告)日：1980-07-22
申请号：US884235
申请日：1978-03-07
申请人： Nobuo Kurihara , Yoshio Sato , Shigeyoshi Kawano , Michihiro Iioka , Daizo Iba , Tadashi Kurihara
发明人： Nobuo Kurihara , Yoshio Sato , Shigeyoshi Kawano , Michihiro Iioka , Daizo Iba , Tadashi Kurihara
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。
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