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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: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:US07387650B2
公开(公告)日:2008-06-17
申请号:US10509741
申请日:2003-04-25
申请人: Setsuo Omoto , Naohiko Ishibashi , Keiji Fujikawa , Hirohisa Yoshida , Masami Kondo , Shigeru Nojima , Toshinobu Yasutake , Satoru Watanabe , Masanao Yonemura
发明人: Setsuo Omoto , Naohiko Ishibashi , Keiji Fujikawa , Hirohisa Yoshida , Masami Kondo , Shigeru Nojima , Toshinobu Yasutake , Satoru Watanabe , Masanao Yonemura
IPC分类号: B01J8/00
CPC分类号: C01B13/0262 , B01D53/0407 , B01D2257/104 , B01D2258/0208 , C01B2203/066 , C01B2210/0046 , H01M8/04231 , H01M8/0612
摘要: A fuel cell power generation system, equipped with a fuel reforming device and a fuel cell body, includes valves, pipelines, a condenser, and a pump for feeding a burner exhaust gas (raw gas) discharged from a heating burner of the fuel reforming device into the fuel reforming device, and an inert gas formation device including an oxidizable and reducible oxygen adsorbent, which is disposed in the pipelines, and adsorbs oxygen in the burner exhaust gas to remove oxygen from the burner exhaust gas and form an inert gas. The fuel cell power generation system can reliably remove residual matter, without leaving it within the fuel reforming device, in a simple manner at a low cost and with a compact configuration.
摘要翻译: 具有燃料重整装置和燃料电池体的燃料电池发电系统包括用于供给从燃料重整装置的加热燃烧器排出的燃烧器废气(原料气体)的阀,管道,冷凝器和泵, 燃料重整装置以及包含可氧化还原氧吸附剂的惰性气体形成装置,其设置在管道中,并且吸附燃烧器废气中的氧气以从燃烧器排气中除去氧并形成惰性气体。 燃料电池发电系统可以以简单的方式以低成本和紧凑的结构可靠地去除残留物质而不将其留在燃料重整装置内。
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公开(公告)号:US20050112423A1
公开(公告)日:2005-05-26
申请号:US10509741
申请日:2003-04-25
申请人: Setsuo Omoto , Naohiko Ishibashi , Keiji Fujikawa , Hirohisa Yoshida , Masami Kondo , Shigeru Nojima , Toshinobu Yasutake , Satoru Watanabe , Masanao Yonemura
发明人: Setsuo Omoto , Naohiko Ishibashi , Keiji Fujikawa , Hirohisa Yoshida , Masami Kondo , Shigeru Nojima , Toshinobu Yasutake , Satoru Watanabe , Masanao Yonemura
CPC分类号: C01B13/0262 , B01D53/0407 , B01D2257/104 , B01D2258/0208 , C01B2203/066 , C01B2210/0046 , H01M8/04231 , H01M8/0612
摘要: A fuel cell power generation system, equipped with a fuel reforming device (60) and a fuel cell body (4), includes valves (30a, 32), pipelines (30b, 31), a condenser (34), a pump (35), etc. for feeding a burner exhaust gas (25) (raw gas) discharged from a heating burner (10) of the fuel reforming device (60) into the fuel reforming device (60), and an inert gas formation device (5A) including an oxidizable and reducible oxygen adsorbent (28), which is disposed in the pipelines (30b, 31), and adsorbs oxygen in the burner exhaust gas (25) to remove oxygen from the burner exhaust gas (25) and form an inert gas (40). The fuel cell power generation system can reliably remove residual matter, without leaving it within the fuel reforming device (60), in a simple manner at a low cost and with a compact configuration.
摘要翻译: 具有燃料重整装置(60)和燃料电池主体(4)的燃料电池发电系统包括阀(30a,32),管路(30b,31),冷凝器(34),泵 (35)等,用于将从燃料重整装置(60)的加热燃烧器(10)排出的燃烧器排气(25)(原料气体)供给到燃料重整装置(60)中,以及惰性气体形成装置 (5A),其包括设置在所述管道(30b,31)中的可氧化和可还原的氧吸附剂(28),并且吸附所述燃烧器排气(25)中的氧以从所述燃烧器排气(25)去除氧气, 并形成惰性气体(40)。 燃料电池发电系统可以以简单的方式以低成本和紧凑的结构可靠地去除残留物质而不将其留在燃料重整装置(60)内。
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7.
公开(公告)号:US08160799B2
公开(公告)日:2012-04-17
申请号:US12365469
申请日:2009-02-04
CPC分类号: F02C6/18 , F01D17/00 , F01D17/105 , F01D17/145 , F01D19/00 , F01D21/16 , F02C9/18 , F05D2220/31 , F05D2270/09
摘要: A turbine bypass control method includes: a high-pressure side pressure controller configured to output a first operation amount signal corresponding to a valve opening; a low-pressure side pressure controller configured to output a second operation amount signal corresponding to a valve opening; a high value selector configured to output as a high value operation amount signal, one of the first operation amount signal and the second operation amount signal which indicates a larger opening; a first signal switching unit configured to receive the high value operation amount signal and the second operation amount signal and output a first bypass valve operation amount signal; a second signal switching unit configured to receive the high value operation amount signal and the first operation amount signal and output a second bypass valve operation amount signal; and a rapid opening controller. Before start of trip of a turbine, the turbine is driven by steam which flows from the high-pressure side header to the low-pressure side header through the turbine.
摘要翻译: 一种涡轮旁路控制方法,包括:高压侧压力控制器,被配置为输出对应于阀开度的第一操作量信号; 低压侧压力控制器,被配置为输出对应于阀开度的第二操作量信号; 高值选择器,被配置为输出表示较大开口的第一操作量信号和第二操作量信号中的一个作为高值操作量信号; 第一信号切换单元,被配置为接收所述高值操作量信号和所述第二操作量信号,并输出第一旁通阀操作量信号; 第二信号切换单元,被配置为接收所述高值操作量信号和所述第一操作量信号,并输出第二旁通阀操作量信号; 和快速打开控制器。 在涡轮机跳闸开始之前,涡轮由蒸汽驱动,该蒸汽由高压侧集管通过涡轮机流向低压侧集管。
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公开(公告)号:US06340108B1
公开(公告)日:2002-01-22
申请号:US09623086
申请日:2000-08-28
申请人: Shigeru Isoyama , Takeshi Hirabayashi , Takahiro Yamasaki , Takushi Kagawa , Kazunori Nagai , Naohiko Ishibashi , Takashi Okai
发明人: Shigeru Isoyama , Takeshi Hirabayashi , Takahiro Yamasaki , Takushi Kagawa , Kazunori Nagai , Naohiko Ishibashi , Takashi Okai
IPC分类号: B23K100
CPC分类号: B21B15/0085 , B21B1/26 , B21B37/005 , B21B2273/18 , B23K20/028 , B23K20/04 , B23K20/24
摘要: Assuming that the processes of joining, rolling, coiling, etc. of a material is evaluated by a preset speed pattern after the extraction from a heating furnace, the required time is predicted and calculated for both of a preceding material and a following material. At the time when the following material can catch up with the preceding material at an aiming position on the line, the following material is extracted from the heating furnace according to the result of the above prediction calculation. Control is carried out so that both of the preceding material and the following material finish the process at a preset speed. Also, the traveling speed of the following material is controlled according to the position and the speed of the tail edge of the preceding material in a section close to the catch-up position so that a distance between the tail edge of the preceding material and the leading edge of the following material be closed. Thereby, three of the tail edge of the preceding material, the leading edge of the following material, and a movable joining apparatus are controlled at the aiming position on the hot rolling line so as to be in a positional relationship suitable for joining, by which the joining operation is completed properly in the travel zone of the joining apparatus.
摘要翻译: 假设在从加热炉中取出之后,通过预先设定的速度模式对材料的接合,轧制,卷取等进行评价,对于前述材料和后续材料,预测和计算所需时间。 在以下材料可以在线上的瞄准位置赶上前述材料时,根据上述预测计算的结果从加热炉中提取以下材料。 进行控制,使得前述材料和以下材料都以预定速度完成该过程。 此外,根据在接近追赶位置的部分中的先前材料的尾部的位置和速度来控制以下材料的移动速度,使得在先前材料的尾部边缘与 以下材料的前缘关闭。 由此,将前一种材料的尾部边缘,以下材料的前缘中的三条和可动接合装置控制在热轧生产线上的瞄准位置,以便处于适于接合的位置关系,由此 接合操作在接合设备的行进区域中正确地完成。
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