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1.发明申请公开(公告)号：US20080082294A1
公开(公告)日：2008-04-03
申请号：US11863172
申请日：2007-09-27
申请人： Roger K. PIHLAJA , John P. Miller
发明人： Roger K. PIHLAJA , John P. Miller
CPC分类号： G05B23/024 , G05B23/0221
摘要： A system and method for detecting abnormal situations associated with a stirred vessel in a process plant receives statistical data associated with a pressure within a stirred vessel. A pressure signal associated with the pressure in the vessel is filtered by a digital filter to isolate a frequency component corresponding to pressure changes caused by the movement of a blade of an agitator through a fluid. For example, a pressure sensor device disposed at least partially within the stirred vessel may generate the statistical data based on a pressure signal. The statistical data is analyzed to detect whether one or more abnormal situations associated with an agitator of the stirred vessel exist. For example, the statistical data may be analyzed to detect whether the agitator is broken/unbalanced, corroded, missing a blade or multiple blades, etc. If an abnormal situation is detected, an indicator of the abnormal situation may be generated.
摘要翻译： 用于检测与处理装置中的搅拌容器相关联的异常情况的系统和方法接收与搅拌容器内的压力相关的统计数据。 与容器中的压力相关联的压力信号被数字滤波器过滤，以隔离由搅拌器的叶片通过流体的运动引起的压力变化的频率分量。 例如，至少部分地设置在搅拌容器内的压力传感器装置可以基于压力信号产生统计数据。 分析统计数据以检测是否存在与搅拌容器的搅拌器相关联的一个或多个异常情况。 例如，可以分析统计数据，以检测搅拌器是否断裂/不平衡，腐蚀，叶片或多个叶片等。如果检测到异常情况，则可能产生异常情况的指示器。
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公开(公告)号：US4649735A
公开(公告)日：1987-03-17
申请号：US796343
申请日：1985-11-08
申请人： Roger K. Pihlaja
发明人： Roger K. Pihlaja
CPC分类号： G01N3/303 , G01N3/32 , G01N2203/0623
摘要： A device for testing a sample of foam material and a method for making such a test include compressing the sample repetitively by means of a dropped weight. The weight includes a plunger which moves vertically in a sliding bearing arrangement. The plunger is raised by a solenoid and allowed to drop so as to compress the sample only by a predetermined percentage of its original diameter. The force applied to the sample is monitored during this compression operation and the ratios of forces between the initial force measurement and the force measurement made during subsequent drops provides a quantitative indication of the weakness in the foam cell structure.
摘要翻译： 用于测试泡沫材料样品的装置和用于进行这种测试的方法包括通过降低重量来重复地压缩样品。 重量包括在滑动轴承装置中垂直移动的柱塞。 柱塞由螺线管升高并允许下降，以便仅以原始直径的预定百分比压缩样品。 在该压缩操作期间监测施加到样品的力，并且在随后的液滴期间进行的初始力测量和力测量之间的力比提供了泡沫单元结构中的弱点的定量指示。
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3.发明授权公开(公告)号：US07778797B2
公开(公告)日：2010-08-17
申请号：US11863172
申请日：2007-09-27
申请人： Roger K. Pihlaja , John P. Miller
发明人： Roger K. Pihlaja , John P. Miller
IPC分类号： G01F19/00
CPC分类号： G05B23/024 , G05B23/0221
摘要： A system and method for detecting abnormal situations associated with a stirred vessel in a process plant receives statistical data associated with a pressure within a stirred vessel. A pressure signal associated with the pressure in the vessel is filtered by a digital filter to isolate a frequency component corresponding to pressure changes caused by the movement of a blade of an agitator through a fluid. For example, a pressure sensor device disposed at least partially within the stirred vessel may generate the statistical data based on a pressure signal. The statistical data is analyzed to detect whether one or more abnormal situations associated with an agitator of the stirred vessel exist. For example, the statistical data may be analyzed to detect whether the agitator is broken/unbalanced, corroded, missing a blade or multiple blades, etc. If an abnormal situation is detected, an indicator of the abnormal situation may be generated.
摘要翻译： 用于检测与处理装置中的搅拌容器相关联的异常情况的系统和方法接收与搅拌容器内的压力相关的统计数据。 与容器中的压力相关联的压力信号被数字滤波器过滤，以隔离由搅拌器的叶片通过流体的运动引起的压力变化的频率分量。 例如，至少部分地设置在搅拌容器内的压力传感器装置可以基于压力信号产生统计数据。 分析统计数据以检测是否存在与搅拌容器的搅拌器相关联的一个或多个异常情况。 例如，可以分析统计数据，以检测搅拌器是否断裂/不平衡，腐蚀，叶片或多个叶片等。如果检测到异常情况，则可能产生异常情况的指示器。
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公开(公告)号：US4983553A
公开(公告)日：1991-01-08
申请号：US447310
申请日：1989-12-07
IPC分类号： C01B21/072 , C04B35/581
CPC分类号： C04B35/581 , C01B21/0726
摘要： By supplying gaseous nitrogen throughout a discrete aliquot of a preferably pelletized mixture of aluminum oxide, carbon and, optionally, calcium oxide during the carbothermal reduction thereof to aluminum nitride and continuously removing gaseous reaction products therefrom, a high quality aluminum nitride is produced. One means of supplying gaseous nitrogen to the mixture of solid reactants is a perforated tray having a hollowed-out bottom. Gaseous nitrogen supplied to the hollowed-out portion flows through the perforations and throughout solid reactants contained in the tray. The carbon may be alternatively supplied, in whole or in part, as a gaseous reactant.
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公开(公告)号：US08516900B2
公开(公告)日：2013-08-27
申请号：US13102256
申请日：2011-05-06
IPC分类号： G01F1/74
CPC分类号： G01F1/74 , G01F15/08 , Y10T137/8175
摘要： A process fluid flow system is provided having an input, an output, and a plurality of fluid circuits disposed between the input and output. At least one valve is disposed to selectably cause process fluid to flow through either a first circuit of the plurality of circuits, or a second circuit of the plurality of circuits. Process fluid flows through the first circuit during normal production, and through the second circuit during process fluid sequestration. A process fluid flow measurement device is operably interposed between the input and output and configured to measure total flow through the system. A separator is disposed in the second circuit and is arranged to allow the process fluid to separate gravitationally over time into immiscible components of the process fluid, the separator having a known internal volume. A guided wave radar level measurement device is preferably disposed to measure heights of interfaces within the separator. A controller is coupled to at least one valve, the process fluid flow measurement system, and the guided wave radar level measurement device. The controller is configured to combine total process fluid flow information from the process fluid flow measurement device with measured height information from the guided wave level measurement device to provide fractional flow rates for at least one immiscible component of the process fluid.
摘要翻译： 提供了具有设置在输入和输出之间的输入，输出和多个流体回路的过程流体流动系统。 设置至少一个阀门可选地使工艺流体流过多个回路中的第一回路或多个回路中的第二回路。 过程流体在正常生产期间流过第一回路，并且在过程流体隔离期间通过第二回路流动。 过程流体流量测量装置可操作地插入在输入和输出之间并被配置成测量通过系统的总流量。 分离器设置在第二回路中并且被布置成允许过程流体随时间重力地分离成过程流体的不混溶组分，分离器具有已知的内部体积。 优选地设置导波雷达液位测量装置以测量分离器内的界面的高度。 控制器耦合到至少一个阀，过程流体流量测量系统和导波雷达液位测量装置。 控制器被配置为将来自过程流体流量测量装置的总工艺流体流量信息与来自导波水平测量装置的测量的高度信息组合，以提供过程流体的至少一个不混溶组分的分数流量。
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公开(公告)号：US20110283809A1
公开(公告)日：2011-11-24
申请号：US13102256
申请日：2011-05-06
CPC分类号： G01F1/74 , G01F15/08 , Y10T137/8175
摘要： A process fluid flow system is provided having an input, an output, and a plurality of fluid circuits disposed between the input and output. At least one valve is disposed to selectably cause process fluid to flow through either a first circuit of the plurality of circuits, or a second circuit of the plurality of circuits. Process fluid flows through the first circuit during normal production, and through the second circuit during process fluid sequestration. A process fluid flow measurement device is operably interposed between the input and output and configured to measure total flow through the system. A separator is disposed in the second circuit and is arranged to allow the process fluid to separate gravitationally over time into immiscible components of the process fluid, the separator having a known internal volume. A guided wave radar level measurement device is preferably disposed to measure heights of interfaces within the separator. A controller is coupled to at least one valve, the process fluid flow measurement system, and the guided wave radar level measurement device. The controller is configured to combine total process fluid flow information from the process fluid flow measurement device with measured height information from the guided wave level measurement device to provide fractional flow rates for at least one immiscible component of the process fluid.
摘要翻译： 提供了具有设置在输入和输出之间的输入，输出和多个流体回路的过程流体流动系统。 设置至少一个阀门可选地使工艺流体流过多个回路中的第一回路或多个回路中的第二回路。 过程流体在正常生产期间流过第一回路，并且在过程流体隔离期间通过第二回路流动。 过程流体流量测量装置可操作地插入在输入和输出之间并被配置成测量通过系统的总流量。 分离器设置在第二回路中并且被布置成允许过程流体随时间重力地分离成过程流体的不混溶组分，分离器具有已知的内部体积。 优选地设置导波雷达液位测量装置以测量分离器内的界面的高度。 控制器耦合到至少一个阀，过程流体流量测量系统和导波雷达液位测量装置。 控制器被配置为将来自过程流体流量测量装置的总工艺流体流量信息与来自导波水平测量装置的测量的高度信息组合，以提供过程流体的至少一个不混溶组分的分数流量。
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公开(公告)号：US4913761A
公开(公告)日：1990-04-03
申请号：US275459
申请日：1988-11-23
CPC分类号： B29C65/22 , B26D1/0006 , B26D3/12 , B26F3/08 , B26F3/12 , B29C65/7433 , B29C66/431 , B29C66/80 , B29C66/81264 , B26D2001/002 , B29C65/222 , B29K2995/0077 , B29K2995/0083 , B29K2995/0086 , Y10T156/1054 , Y10T156/1313
摘要： A process and apparatus for severing and simultaneously sealing a plurality of plies of thermoplastic material to form bags for storing foods therein is provided. A severing and sealing element fabricated from a long range ordered alloy is used. The use of that alloy provides increased element life at higher operating temperatures while significantly reducing odor and off-flavor problems in the bags.
摘要翻译： 提供了用于切断并同时密封多层热塑性材料以形成用于储存食物的袋的方法和装置。 使用由长距离有序合金制成的切断密封元件。 该合金的使用在更高的操作温度下提供了增加的元件寿命，同时显着地减少了袋中的气味和异味问题。
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公开(公告)号：US5112579A
公开(公告)日：1992-05-12
申请号：US626648
申请日：1990-12-12
IPC分类号： C01B21/072 , C04B35/581
CPC分类号： C04B35/581 , C01B21/0726
摘要： A reactor for carbothermal reduction is disclosed. By supplying gaseous nitrogen throughout a discrete aliquot of a preferably pelletized mixture of aluminum oxide, carbon and, optionally, calcium oxide during the carbothermal reduction thereof to aluminum nitride and continuously removing gaseous reaction products therefrom, a high quality aluminum nitride is produced. One means of supplying gaseous nitrogen to the mixture of solid reactants is a perforated tray having a hollowed-out bottom. Gaseous nitrogen supplied to the hollowed-out portion flows through the perforations and throughout solid reactants contained in the tray. The carbon may be alternatively supplied, in whole or in part, as a gaseous reactant.
摘要翻译： 公开了一种用于碳热还原的反应器。 通过在氮化铝的碳热还原过程中将优选颗粒化的氧化铝，碳和任选的氧化钙的混合物的等离子体提供气态氮并连续地从其中除去气态反应产物，产生高质量的氮化铝。 向固体反应物的混合物供应气态氮的一种方法是具有中空底部的多孔板。 供应到中空部分的气态氮流过穿孔并遍及容纳在托盘中的固体反应物。 可以全部或部分地将碳作为气体反应物供应。
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公开(公告)号：US4847859A
公开(公告)日：1989-07-11
申请号：US248655
申请日：1988-09-26
CPC分类号： F27D1/0006 , F27D9/00
摘要： The invention is a device and method for cooling a high temperature furnace. A typical high temperature furnace will include a hot zone that is insulated with carbon-based materials, such as lamp-black. The cooling device is a probe consisting of two elongate tubular members. The smaller diameter member fits lengthwise inside the larger member, such that an annulus is defined within the probe. A tapered metal tip at the lower end of the probe is positioned above a frangible disk, and the disk fits over a guide tube that extends into the insulation section. In operation, the probe is shoved downwardly through the frangible disk into the guide tube, to position the tip near the hot zone of the furnace. An inert gas is then passed through the inside member of the probe, and exhausted through the annulus, to dissipate the furnace heat.
摘要翻译： 本发明是用于冷却高温炉的装置和方法。 典型的高温炉将包括与碳基材料（如灯黑）绝缘的热区。 冷却装置是由两个细长的管状构件组成的探针。 较小直径的构件在较大构件内纵向配合，使得在探针内限定环形区域。 探针下端的锥形金属尖端位于易碎盘的上方，并且盘配合在延伸到绝缘部分中的引导管上。 在操作中，探针通过易碎盘向下推入导管中，以将尖端定位在炉的热区附近。 然后将惰性气体通过探针的内部构件，并通过环空排出，以消散炉热。
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