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公开(公告)号：US12078344B2
公开(公告)日：2024-09-03
申请号：US17426966
申请日：2020-02-07
申请人： IHI Corporation
发明人： Masato Tamura , Shinji Watanabe , Shun Inoue , Isao Umoto , Tomonori Matsubara , Shinobu Nakamura
摘要： A learning device, for constructing a learning model for generating a prior acceleration command value for controlling a control target in advance of the time a load on a boiler used for thermal power generation changes, includes: a learner configured to generate the learning model by mechanically learning, as learning data, a data set including a power generation command value for the thermal power generation and the prior acceleration command value which have been used in a previous operation of the boiler.
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公开(公告)号：US12066183B1
公开(公告)日：2024-08-20
申请号：US18435142
申请日：2024-02-07
申请人： En-Fab Inc.
CPC分类号： F22B35/18 , E21B43/24 , F22B35/005 , F22G5/123 , E21B37/06
摘要： A steam supply system having a wet steam source and a steam separator disposed to separated wet steam into dry saturated steam and a saturated condensate. The dry saturated steam is heated in a superheater to produce superheated steam, while the saturated condensate is cooled in a subcooler to produced subcooled condensate with a target temperature selected to prevent immediate evaporation of the subcooled condensate when mixed with the superheated steam. The subcooled condensate is sprayed into a stream of superheated steam using spray nozzles and gradually evaporates downstream of the spray nozzles to produce process steam of a desired % quality. A cooling fluid passing through the subcooler is utilized to cool the saturated condensate. The flow rate of the cooling fluid through the subcooler can be utilized to achieve process steam of a desired % quality.
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公开(公告)号：US20240183526A1
公开(公告)日：2024-06-06
申请号：US18061043
申请日：2022-12-02
CPC分类号： F22B35/18 , G01M99/005
摘要： In some embodiments, a method includes generating a first indicator in response to a detection of fuel wastage of a boiler system based on a first comparison of data of a first set of data, generating a second indicator for monitoring a carbon footprint of the boiler system based on data of a second set of data, and generating at least one of a third indicator for monitoring tube-to-drum joints of the boiler system based on a second comparison of the data of the first set of data, a fourth indicator for monitoring tube overheating of the boiler system based on a third comparison of the data of the first set of data, or a fifth indicator for predicting flame disturbance of the boiler system based on a comparison of data of a third set of data.
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公开(公告)号：US11959633B1
公开(公告)日：2024-04-16
申请号：US18365553
申请日：2023-08-04
申请人： En-Fab Inc.
CPC分类号： F22B35/18 , E21B43/24 , F22B35/005 , F22G5/123 , E21B37/06
摘要： A steam supply system having a wet steam source and a steam separator disposed to separated wet steam into dry saturated steam and a saturated condensate. The dry saturated steam is heated in a superheater to produce superheated steam, while the saturated condensate is cooled in a subcooler to produced subcooled condensate with a target temperature selected to prevent immediate evaporation of the subcooled condensate when mixed with the superheated steam. The subcooled condensate is sprayed into a stream of superheated steam using spray nozzles and gradually evaporates downstream of the spray nozzles to produce process steam of a desired % quality. A cooling fluid passing through the subcooler is utilized to cool the saturated condensate. The flow rate of the cooling fluid through the subcooler can be utilized to achieve process steam of a desired % quality.
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公开(公告)号：US11747012B2
公开(公告)日：2023-09-05
申请号：US18092221
申请日：2022-12-31
IPC分类号： F22B35/18 , G05B19/4155 , F22B35/00
CPC分类号： F22B35/18 , F22B35/008 , G05B19/4155 , G05B2219/50333
摘要： The disclosed technology includes a controller configured to control an output of one or more boilers to reduce temperature overshoot of the boiler system. The controller can receive temperature data, a threshold temperature value, and a maximum temperature value, and determine whether the temperature of the water in the boiler system is greater than or equal to a threshold temperature. The controller can also determine a number of operating boilers that were operating when the threshold temperature was reached and determine a temperature increment value based on the threshold temperature, the maximum temperature, and the number of operating boilers. The controller can output a control signal to a boiler to reduce an output of the boiler based on the temperature increment value and the temperature data to reduce overshoot of the boiler system.
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公开(公告)号：US11668536B2
公开(公告)日：2023-06-06
申请号：US16358426
申请日：2019-03-19
申请人： Suncor Energy Inc.
发明人： Fei Qi , Mathew Walker
CPC分类号： F28G15/003 , F22B35/18 , F22B37/56 , G01N17/008 , F28F27/00 , F28F2200/00
摘要： The following provides a system and method to predict an indicator of tube fouling in a fired apparatus such as a boiler. Historical data can be collected when the tubing is still considered to be clean, and used to build a first model between an indicator of fouling, such as tube skin temperature, and boiler load. The actual measurement of that indicator of fouling can then be compared against the model output, such that the error between the model and measurement is considered an indication of the tube fouling. Moreover, the rate of change of the model error can be used to measure the fouling rate. Next, historical data on the fluid feed quality can be collected and together with the historical error rate change data can be combined to develop a second model. This second model reflects how fluid feed quality variables may affect the fouling rate over time.
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公开(公告)号：US20190242572A1
公开(公告)日：2019-08-08
申请号：US16278089
申请日：2019-02-16
申请人： NEC POWER CO., LTD.
发明人： Jae-Yong SIM
CPC分类号： F22B35/18 , F22B37/38 , F22B37/42 , F23G5/50 , F23G2206/203 , F23G2207/101 , F23G2207/20 , F23G2207/30 , G05B13/0245 , G05B19/124 , Y02E20/12
摘要： A system and method enable an incineration facility to be controlled and diagnosed, and the life cycle thereof managed, using a heat exchange and design program and operation mode analysis of an operator of the facility. Operation efficiency is improved by comparing and analyzing (a) initial design values of the incineration facility, (b) measured actual valued obtained by measuring waste composition and heating values changed after construction of the facility and (c) operation values indicating actual operation adjustment values and operating result values operated by the operator and by analyzing the operator. The design values, measured actual values and operation values are compared and provided as data in graphs and tables.
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8.发明授权Boiler system controlling fuel to a furnace based on temperature of a structure in a superheater section 有权锅炉系统基于过热器部分中的结构的温度将燃料控制到炉公开(公告)号：US09541282B2
公开(公告)日：2017-01-10
申请号：US14202242
申请日：2014-03-10
发明人： Andrew K Jones , David Fuhrmann , Tim Carlier , Mark Sargent
IPC分类号： D21C11/10 , D21C11/12 , F22G5/00 , F22G5/02 , F22G1/04 , F22G7/04 , F22B21/34 , F22B31/00 , F22B37/56 , F01K23/06 , F22B35/00
摘要： A boiler system is provided comprising: a furnace adapted to receive a fuel to be burned to generate hot working gases; a fuel supply structure associated with the furnace for supplying fuel to the furnace; a superheater section associated with the furnace and positioned to receive energy in the form of heat from the hot working gases; and a controller. The superheater section may comprise a platen including a tube structure with an end portion and a temperature sensor for measuring the temperature of the tube structure end portion and generating a signal indicative of the temperature of the tube structure end portion. The controller may be coupled to the temperature sensor for receiving and monitoring the signal from the sensor.
摘要翻译： 提供了一种锅炉系统，包括：适于接收待燃燃料以产生热工作气体的炉; 与炉相连的燃料供给结构，用于向炉供给燃料; 与炉相关联并定位成以热作用气体的形式接收能量的过热器部分; 和控制器。 过热器部分可以包括压板，该压板包括具有端部的管结构和用于测量管结构端部的温度并产生指示管结构端部的温度的信号的温度传感器。 控制器可以耦合到温度传感器，用于接收和监测来自传感器的信号。
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9.发明授权Method to start up a combined cycle thermal plant for energy production from an off-state to an operational state 有权启动从关闭状态到运行状态的能源生产联合循环热电厂的方法公开(公告)号：US09523289B2
公开(公告)日：2016-12-20
申请号：US14007643
申请日：2012-03-27
申请人： Ezio Pasqualon
发明人： Ezio Pasqualon
CPC分类号： F01K13/02 , F01D19/02 , F01K7/16 , F01K23/10 , F01K23/101 , F22B1/1815 , F22B35/14 , F22B35/18
摘要： To start a combined cycle thermal plant for energy-production from an off-state to an operational state, once the minimum warm-up time of the steam turbine (ST) having been set, as well as the pressure of the warm-up steam, it is necessary to determine the steam optimum temperature to avoid stressing or straining the mechanical parts of the turbine itself.
摘要翻译： 为了启动从关闭状态到运行状态的能量生产的联合循环热电厂，一旦已经设定了蒸汽轮机（ST）的最小预热时间，以及预热蒸汽的压力 ，需要确定蒸汽最佳温度以避免涡轮本身的机械部件的应力或应变。
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10.发明授权Dynamic matrix control of steam temperature with prevention of saturated steam entry into superheater 有权蒸汽温度的动态矩阵控制，防止饱和蒸汽进入过热器公开(公告)号：US09217565B2
公开(公告)日：2015-12-22
申请号：US13022324
申请日：2011-02-07
CPC分类号： F22B35/18 , F01K13/02 , F22B35/004
摘要： A technique of controlling a steam generating boiler system using dynamic matrix control includes preventing saturated steam from entering a superheater section. A dynamic matrix control block uses a rate of change of a disturbance variable, a current output steam temperature, and an output steam setpoint as inputs to generate a control signal. A prevention block modifies the control signal based on a saturated steam temperature and an intermediate steam temperature. In some embodiments, the control signal is modified based on a threshold and/or an adjustable function g(x). The modified control signal is used to control a field device that, at least in part, affects the intermediate steam and output steam of the boiler system. In some embodiments, the prevention block is included in the dynamic matrix control block.
摘要翻译： 使用动态矩阵控制来控制蒸汽发生锅炉系统的技术包括防止饱和蒸汽进入过热器部分。 动态矩阵控制块使用干扰变量，当前输出蒸汽温度和输出蒸汽设定点的变化率作为输入来产生控制信号。 防止块基于饱和蒸汽温度和中间蒸汽温度来修改控制信号。 在一些实施例中，基于阈值和/或可调整函数g（x）来修改控制信号。 改进的控制信号用于控制至少部分地影响锅炉系统的中间蒸汽和输出蒸汽的现场设备。 在一些实施例中，预防块被包括在动态矩阵控制块中。
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