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公开(公告)号：US08620483B2
公开(公告)日：2013-12-31
申请号：US12376375
申请日：2008-02-14
CPC分类号： F01D17/105 , F01K1/18 , F01K13/02 , F05D2220/31 , F05D2220/72
摘要： A steam system control method applied to a steam system including: a low-pressure header storing low-pressure steam; a high-pressure header storing high-pressure header; a steam turbine connected between them; and a turbine bypass line introducing controlled amount of steam from the high-pressure header to the low-pressure header by bypassing the steam turbine. The low-pressure header has a blow-off valve for discharging excessive steam to the outside. The steam system control method includes: a normal time blow-off valve control step of PI controlling the opening of the blow-off valve; and a trip time blow-off control step of controlling the opening of the blow-off valve by changing the MV value to a predetermined trip time opening set value when the turbine is tripped. According to this method, the opening of the blow-off valve is controlled based on the predetermined MV value when the turbine trips and excessive steam flows into the bypass, so that excessive steam flows into the low-pressure header is quickly discharged to the outside. Stable operation can be achieved even when a turbine trips.
摘要翻译： 一种应用于蒸汽系统的蒸汽系统控制方法，包括：存储低压蒸汽的低压集管; 一个高压集管，储存高压集管; 连接在它们之间的蒸汽轮机; 以及涡轮机旁通管路，其通过旁通蒸汽涡轮机将受控量的蒸汽从高压集管引入低压集管。 低压集管具有用于将过量蒸汽排放到外部的吹扫阀。 蒸汽系统控制方法包括：正常时间排放阀控制步骤，PI控制排出阀的打开; 以及跳闸时间吹出控制步骤，当所述涡轮机跳闸时，通过将所述MV值改变为预定跳闸时间打开设定值来控制所述排气阀的打开。 根据该方法，当涡轮机跳闸和过量的蒸汽流入旁路时，基于预定的MV值来控制排气阀的打开，使得流入低压集管的过量蒸汽迅速地排放到外部 。 即使在涡轮机跳闸时也能实现稳定运行。
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公开(公告)号：US08656718B2
公开(公告)日：2014-02-25
申请号：US12375780
申请日：2008-02-14
IPC分类号： F01K13/02
CPC分类号： F01D17/08 , F01D21/16 , F01K1/18 , F01K13/02 , F05D2220/31
摘要： In a steam system having a turbine driven by steam supplied from a high-pressure header to a low-pressure header, when the pressure in the low-pressure header drops, a turbine bypass valve is opened and the high-pressure side steam is supplied to the low-pressure side header in a normal control. When the turbine is tripped, steam is rapidly flow into the low-pressure side header and its pressure temporally increases. the steam in the low-pressure header is discharged through a discharge valve. After that, if a steam supply from the low-pressure header to another process increases, the discharge valve is closed. After the discharge valve is fully closed, an after-trip control is performed in which the opening of the turbine bypass valve is increased at an earlier timing than the normal control for preventing the steam amount in the low-pressure header to be too small. The control stability of the steam system when the turbine is tripped can be enhanced.
摘要翻译： 在具有由从高压集管供给到低压集管的蒸汽驱动的涡轮的蒸汽系统中，当低压集管中的压力下降时，涡轮旁通阀打开，并且高压侧蒸汽被供给 到正常控制中的低压侧头部。 当涡轮机跳闸时，蒸汽迅速流入低压侧集管并且其压力暂时增加。 低压集管中的蒸汽通过排放阀排出。 此后，如果从低压集管向另一工序的蒸汽供应增加，则排出阀关闭。 在排气阀完全关闭之后，执行跳闸控制，其中涡轮旁通阀的开度比防止低压集管中的蒸汽量太小的正常控制更早的时间增加。 可以提高涡轮机跳闸时蒸汽系统的控制稳定性。
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公开(公告)号：US20100161136A1
公开(公告)日：2010-06-24
申请号：US12376375
申请日：2008-02-14
IPC分类号： G05D7/00
CPC分类号： F01D17/105 , F01K1/18 , F01K13/02 , F05D2220/31 , F05D2220/72
摘要： A steam system control method applied to a steam system including: a low-pressure header storing low-pressure steam; a high-pressure header storing high-pressure header; a steam turbine connected between them; and a turbine bypass line introducing controlled amount of steam from the high-pressure header to the low-pressure header by bypassing the steam turbine. The low-pressure header has a blow-off valve for discharging excessive steam to the outside. The steam system control method includes: a normal time blow-off valve control step of PI controlling the opening of the blow-off valve; and a trip time blow-off control step of controlling the opening of the blow-off valve by changing the MV value to a predetermined trip time opening set value when the turbine is tripped. According to this method, the opening of the blow-off valve is controlled based on the predetermined MV value when the turbine trips and excessive steam flows into the bypass, so that excessive steam flows into the low-pressure header is quickly discharged to the outside. Stable operation can be achieved even when a turbine trips.
摘要翻译： 一种应用于蒸汽系统的蒸汽系统控制方法，包括：存储低压蒸汽的低压集管; 一个高压集管，储存高压集管; 连接在它们之间的蒸汽轮机; 以及涡轮机旁通管路，其通过旁通蒸汽涡轮机将受控量的蒸汽从高压集管引入低压集管。 低压集管具有用于将过量蒸汽排放到外部的吹扫阀。 蒸汽系统控制方法包括：正常时间排放阀控制步骤，PI控制排出阀的打开; 以及跳闸时间吹出控制步骤，当所述涡轮机跳闸时，通过将所述MV值改变为预定跳闸时间打开设定值来控制所述排气阀的打开。 根据该方法，当涡轮机跳闸和过量的蒸汽流入旁路时，基于预定的MV值来控制排气阀的打开，使得流入低压集管的过量蒸汽迅速地排放到外部 。 即使在涡轮机跳闸时也能实现稳定运行。
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公开(公告)号：US20090150121A1
公开(公告)日：2009-06-11
申请号：US12297236
申请日：2006-04-18
申请人： Kazuhiro Takeda , Shinji Ogino , Kazuko Takeshita
发明人： Kazuhiro Takeda , Shinji Ogino , Kazuko Takeshita
IPC分类号： G21C17/00
CPC分类号： F04B51/00 , F04D27/001
摘要： A performance monitoring apparatus for a fluid machinery which includes a predicted performance curve calculator for obtaining a curve representing the relationship between a pressure coefficient and a flow coefficient by non-dimensional characteristics per a plural fluid control quantities from a compression ratio or a pressure difference and an inlet flow rate of the fluid machinery, and a performance monitoring calculator for obtaining an actual performance head from fluid control quantities, a suction pressure, a discharge pressure, a suction temperature, a compression coefficient, a gas average molecular weight, and a specific heat ratio at the time of the operating fluid machinery, and obtaining a predicted performance head from a predicted performance curve, fluid control quantities, and an inlet flow rate; and calculating a performance degradation from the ratio of the predicted performance head to the actual performance head.
摘要翻译： 一种用于流体机械的性能监视装置，其包括预测性能曲线计算器，用于根据压缩比或压力差从多个流体控制量获得表示压力系数和流量系数之间的关系的曲线，以及 流体机械的入口流量，以及用于从流体控制量，吸入压力，排出压力，吸入温度，压缩系数，气体平均分子量和特定的流体控制量获得实际性能头的性能监测计算器 在工作流体机械时的热比，从预测的性能曲线，流体控制量和入口流量获得预测的性能头; 并根据预测性能头与实际性能头的比值来计算性能下降。
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公开(公告)号：US08298758B2
公开(公告)日：2012-10-30
申请号：US10584393
申请日：2004-12-24
申请人： Naoko Horikoshi , Susumu Kawasaki , Yukio Okada , Kazuko Takeshita , Takashi Sameshima , Shinichi Kawamoto , Kenji Isshiki
发明人： Naoko Horikoshi , Susumu Kawasaki , Yukio Okada , Kazuko Takeshita , Takashi Sameshima , Shinichi Kawamoto , Kenji Isshiki
IPC分类号： C12Q1/68
CPC分类号： C12Q1/686 , C12Q1/689 , Y02A50/451
摘要： The present invention is to provide a multiple detection method that can detect contaminating microorganisms existing in foods, including pathogenic Escherichia coli O157, Listeria monocytogenes and Salmonella spp., with high sensitivity comparable or even superior to official methods, comprising the steps of amplifying a plural number of target genes with a single PCR reaction tube and analyzing the same. The following steps are performed consecutively: (A) a step of extracting DNA of the target microorganisms to be detected by treating with at least a lytic enzyme such as Achromopepidase and Lysozyme and/or bacteriocin having lytic activity such as Enterolysine, a surfactant and a protein denaturing agent; and (B) a step of mixing a specific primer to the target microorganisms to be detected to perform multiplex PCR. Further, it is preferable to add a step of culturing with a culture condition where 1 CFU/100 g microorganisms becomes 10.sup.3 CFU/ml or more after 18 to 48 h of culture, for example that the pH after culture becomes 5.1 or more, before the step of extracting DNA of the target microorganisms to be detected.
摘要翻译： 本发明提供一种可以检测存在于食品中的污染微生物的多重检测方法，包括致病性大肠杆菌O157，单核细胞增生李斯特氏菌和沙门氏菌，具有与官方方法相当或甚至优于其他方法的高灵敏度，包括以下步骤： 使用单个PCR反应管的目标基因数目并进行分析。 连续进行以下步骤：（A）通过用至少一种裂解酶如溶酶酶和溶菌酶和/或具有溶解活性的细菌素（例如肠溶素，表面活性剂和表面活性剂）进行处理来提取要检测的目标微生物的DNA的步骤 蛋白变性剂; 和（B）将特异性引物与要检测的目标微生物混合以进行多重PCR的步骤。 此外，优选在培养18〜48小时后，添加培养条件，其中1CFU / 100g微生物变成10μFCFU / ml以上，例如培养后的pH变为5.1 或更多，在提取要检测的目标微生物的DNA的步骤之前。
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公开(公告)号：US20090288414A1
公开(公告)日：2009-11-26
申请号：US12375780
申请日：2008-02-14
CPC分类号： F01D17/08 , F01D21/16 , F01K1/18 , F01K13/02 , F05D2220/31
摘要： In a steam system having a turbine driven by steam supplied from a high-pressure header to a low-pressure header, when the pressure in the low-pressure header drops, a turbine bypass valve is opened and the high-pressure side steam is supplied to the low-pressure side header in a normal control. When the turbine is tripped, steam is rapidly flow into the low-pressure side header and its pressure temporally increases. the steam in the low-pressure header is discharged through a discharge valve. After that, if a steam supply from the low-pressure header to another process increases, the discharge valve is closed. After the discharge valve is fully closed, an after-trip control is performed in which the opening of the turbine bypass valve is increased at an earlier timing than the normal control for preventing the steam amount in the low-pressure header to be too small. The control stability of the steam system when the turbine is tripped can be enhanced.
摘要翻译： 在具有由从高压集管供给到低压集管的蒸汽驱动的涡轮的蒸汽系统中，当低压集管中的压力下降时，涡轮旁通阀打开，并且高压侧蒸汽被供给 到正常控制中的低压侧头部。 当涡轮机跳闸时，蒸汽迅速流入低压侧集管并且其压力暂时增加。 低压集管中的蒸汽通过排放阀排出。 此后，如果从低压集管向另一工序的蒸汽供应增加，则排出阀关闭。 在排气阀完全关闭之后，执行跳闸控制，其中涡轮旁通阀的开度比防止低压集管中的蒸汽量太小的正常控制更早的时间增加。 可以提高涡轮机跳闸时蒸汽系统的控制稳定性。
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公开(公告)号：US07556473B2
公开(公告)日：2009-07-07
申请号：US10567018
申请日：2004-08-27
IPC分类号： F01D17/00
CPC分类号： F02C7/236 , F02C9/38 , F04D27/0207 , F04D27/0246
摘要： The present invention includes an inflow quantity regulating means 5 for regulating the inflow quantity of a fuel gas to a compressor 1; a recycle valve 7 for returning the fuel gas discharged from the compressor 1 to the inlet side of the compressor 1; and a control means which sets a control operating value for operating the compressor 1 at a predetermined operation point, and controls the inflow quantity regulating means 5 and the recycle valve 7 based on the control operating value. The control means has a first control signal generating means 27 which generates a signal increasing with an increase in the operating value as a control signal for the inflow quantity regulating means 5 when the control operating value is a predetermined value or larger and a second control signal generating means 29 which generates a signal decreasing with an increase in the operating value as a control signal for the recycle valve 7 when the control operating value is smaller than the predetermined value. According to the present invention, high controllability can be obtained under all operating conditions including load shutdown.
摘要翻译： 本发明包括用于调节向压缩机1的燃料气体的流入量的流入量调节装置5; 用于将从压缩机1排出的燃料气体返回到压缩机1的入口侧的再循环阀7; 以及控制装置，其在预定操作点设定用于操作压缩机1的控制操作值，并且基于控制操作值来控制流入量调节装置5和再循环阀7。 控制装置具有第一控制信号发生装置27，当控制操作值为预定值或更大时，产生作为流入量调节装置5的控制信号的操作值增加的信号，以及第二控制信号 生成装置29，当控制操作值小于预定值时，产生随着操作值的增加而减小的信号作为循环阀7的控制信号。 根据本发明，可以在包括负载关闭在内的所有操作条件下获得高可控性。
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8.发明授权公开(公告)号：US07472541B2
公开(公告)日：2009-01-06
申请号：US11267165
申请日：2005-11-07
CPC分类号： F04D27/0207 , F04D27/02 , F04D27/0246
摘要： Provided is a compressor control unit with a high response ability to changes of gas condition of a compressor (compressor suction temperature, pressure, gas specific gravity, pressure ratio of suction pressure and discharge pressure). In the control unit for a compressor that supplies gas into a gas turbine through a header tank, an inlet gas condition is measured and a load command value from a gas turbine controller is corrected to be increased or decreased corresponding to the measured inlet gas condition.
摘要翻译： 提供了一种对压缩机的气体状态变化（压缩机吸入温度，压力，气体比重，吸入压力和排出压力的压力比）具有高响应能力的压缩机控制单元。 在用于通过集水箱向气体涡轮机供给气体的压缩机的控制单元中，测定入口气体状况，根据测定的入口气体条件，将来自燃气轮机控制器的负荷指令值修正为增减。
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公开(公告)号：US20060101824A1
公开(公告)日：2006-05-18
申请号：US11267165
申请日：2005-11-07
IPC分类号： F02C9/16
CPC分类号： F04D27/0207 , F04D27/02 , F04D27/0246
摘要： Provided is a compressor control unit with a high response ability to changes of gas condition of a compressor (compressor suction temperature, pressure, gas specific gravity, pressure ratio of suction pressure and discharge pressure). In the control unit for a compressor that supplies gas into a gas turbine through a header tank, an inlet gas condition is measured and a load command value from a gas turbine controller is corrected to be increased or decreased corresponding to the measured inlet gas condition.
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10.发明授权Feedback control method in V-shaped characteristic system, and NH3 injection rate control method for NOx removal apparatus using the same 有权V型特征系统中的反馈控制方法，以及使用其的NOx去除装置的NH 3注入速率控制方法公开(公告)号：US06868294B2
公开(公告)日：2005-03-15
申请号：US10337828
申请日：2003-01-08
申请人： Susumu Kouno , Kenji Suzuki , Kazuko Takeshita , Kozo Iida , Toshiyuki Onishi , Akira Hattori
发明人： Susumu Kouno , Kenji Suzuki , Kazuko Takeshita , Kozo Iida , Toshiyuki Onishi , Akira Hattori
IPC分类号： F01N3/08 , B01D53/34 , B01D53/56 , B01D53/74 , B01D53/86 , B01D53/90 , B01D53/94 , G05B13/02
CPC分类号： B01D53/8631 , B01D53/90
摘要： In the NH3 injection rate control method for an NOx removal apparatus, operating area of the apparatus is divided into first area in which molar ratio of NH3 injection rate with respect to NOx flow rate at an inlet of the apparatus is smaller than molar ratio at minimum point where NOx concentration assumes minimum value and second area in which the molar ratio is equal to or larger than the minimum point molar ratio, and virtual NOx concentration with respect to the molar ratio is set according to virtual characteristic line which varies monotonically to stride across desired operating point without rising with increase of the molar ratio from the first area to the second area. Moreover, feedback control is implemented for adjusting the NH3 injection rate with respect to the NOx flow rate in direction that the virtual NOx concentration is brought close to the desired NOx concentration.
摘要翻译： 在用于NOx去除装置的NH 3注入速率控制方法中，装置的操作区域被划分为第一区域，其中NH 3注入速率相对于装置入口处的NOx流量的摩尔比最小的摩尔比 NOx浓度为最小值的点和摩尔比等于或大于最小点摩尔比的第二区域，并且根据摩尔比的虚拟NOx浓度根据单调变化以跨越的虚拟特征线来设定 所需工作点不随着从第一区域到第二区域的摩尔比的增加而上升。 此外，实施反馈控制，以使虚拟NOx浓度接近期望的NOx浓度的方向相对于NOx流量调节NH 3注入速率。
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