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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：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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4.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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公开(公告)号：US06234332B1
公开(公告)日：2001-05-22
申请号：US09629129
申请日：2000-07-31
IPC分类号： B66C1306
CPC分类号： B66C13/06
摘要： A transverse trolley 11 is transversally movable on a crane girder. A driver is provided for the transverse trolley 11. A pair of sheave blocks 14, 15 which is movable relative to a transverse trolley 11 are disposed on both (right and left) sides of a transverse trolley 11. Drivers are provided for the sheave blocks. Detectors 31 through 38 are provided which detect the displacement and velocity of the transverse trolley 11, the sway displacement and velocity of a hoisted load-piece 23 on both (right and left) sides and the displacement and velocity of the two sheave blocks 14, 15. A notch is disposed on an operation controlling panel of the transverse trolley 11 for setting a trolley transverse velocity by an operator. A transverse notch-driving control quantity detector 40 is provided which outputs signals indicative of notch-driving control quantity (a trolley transverse velocity set value) which is set by operating the notch. A controller is provided which effects sway-damping control of the load-piece hoisting device based on detection signals obtained from the detectors 31 through 38 and 40, and an optimizing control unit performs sway-damping control with optimal controlling quantities on the basis of a preset optimal gain K in accordance with the displacement and velocity and the notch-driving control quantity.
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公开(公告)号：US6135301A
公开(公告)日：2000-10-24
申请号：US948122
申请日：1997-10-09
CPC分类号： B66C13/06
摘要： A transverse trolley (11) is transversally movable on a crane girder. A driver is provided for the transverse trolley (11). A pair of sheave blocks (14, 15) which is movable relative to a transverse trolley (11) are disposed on both (right and left) sides of a transverse trolley (11). Drivers are provided for the sheave blocks. Detectors (31 through 38) are provided which detect the displacement and velocity of the transverse trolley (11), the sway displacement and velocity of a hoisted load-piece (23) on both (right and left) sides and the displacement and velocity of the two sheave blocks (14, 15). A notch is disposed on an operation controlling panel of the transverse trolley (11) for setting a trolley transverse velocity by an operator. A transverse notch-driving control quantity detector (40) is provided which outputs signals indicative of notch-driving control quantity (a trolley transverse velocity set value) which is set by operating the notch. A controller is provided which effects sway-damping control of the load-piece hoisting device based on detection signals obtained from the detectors (31 through 38 and 40) and an optimizing control unit performs sway-damping control with optimal controlling quantities on the basis of a preset optimal gain K in accordance with the displacement and velocity and the notch-driving control quantity.
摘要翻译： 横向推车（11）可在起重机大梁上横向移动。 为横向手推车（11）提供驾驶员。 相对于横向推车（11）可移动的一对滑轮块（14,15）设置在横向推车（11）的两侧（左右）侧。 驱动器为滑轮组提供。 提供检测器（31至38），其检测横向推车（11）的位移和速度，两（左和右）侧的提升的载荷件（23）的摆动位移和速度以及两个（右侧和左侧）的位移和速度 两个滑轮块（14,15）。 在横向手推车（11）的操作控制面板上设置有用于由操作者设定手推车横向速度的凹口。 提供横向切口驱动控制量检测器（40），其输出指示通过操作凹口设定的切口驱动控制量（小车横向速度设定值）的信号。 提供了一种控制器，其基于从检测器（31至38和40）获得的检测信号来实现负载件提升装置的摆动阻尼控制，并且优化控制单元基于最佳控制量执行摇摆阻尼控制 根据位移和速度以及切口驱动控制量预设的最佳增益K。
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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：US06182844B2
公开(公告)日：2001-02-06
申请号：US09628642
申请日：2000-07-31
IPC分类号： B66C1308
CPC分类号： B66C13/06
摘要： A transverse trolley 11 is transversally movable on a crane girder. A driver is provided for the transverse trolley 11. A pair of sheave blocks 14, 15 which is movable relative to a transverse trolley 11 are disposed on both (right and left) sides of a transverse trolley 11. Drivers are provided for the sheave blocks. Detectors 31 through 38 are provided which detect the displacement and velocity of the transverse trolley 11, the sway displacement and velocity of a hoisted load-piece 23 on both (right and left) sides and the displacement and velocity of the two sheave blocks 14, 15. A notch is disposed on an operation controlling panel of the transverse trolley 11 for setting a trolley transverse velocity by an operator. A transverse notch-driving control quantity detector 40 is provided which outputs signals indicative of notch-driving control quantity (a trolley transverse velocity set value) which is set by operating the notch. A controller is provided which effects sway-damping control of the load-piece hoisting device based on detection signals obtained from the detectors 31 through 38 and 40, and an optimizing control unit performs sway-damping control with optimal controlling quantities on the basis of a preset optimal gain K in accordance with the displacement and velocity and the notch-driving control quantity.
摘要翻译： 横向推车11可在起重机梁上横向移动。 为横向手推车11提供驱动器。可以相对于横向滑车11移动的一对滑轮滑块14,15布置在横向滑车11的两侧（左右两侧）上。为滑轮组提供驱动器 。 提供检测器31至38，其检测横向滑车11的位移和速度，两个（右侧和左侧）侧的提升的负载件23的摆动位移和速度以及两个滑轮组14的位移和速度， 在横向手推车11的操作控制面板上设有切口，用于由操作者设定手推车横向速度。 提供横向切口驱动控制量检测器40，其输出表示通过操作凹口设定的切口驱动控制量（小车横向速度设定值）的信号。 提供了一种控制器，其基于从检测器31至38和40获得的检测信号来实现负载件起吊装置的摆动阻尼控制，并且优化控制单元基于以下方式执行具有最佳控制量的摇摆阻尼控制： 根据位移和速度以及切口驱动控制量预设最佳增益K。
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