公开(公告)号：US4888721A

公开(公告)日：1989-12-19

申请号：US94752

申请日：1987-09-09

申请人： Eiki Kondoh ,  Shigeki Morinaga ,  Takao Yaginuma ,  Takeshi Asai

发明人： Eiki Kondoh ,  Shigeki Morinaga ,  Takao Yaginuma ,  Takeshi Asai

IPC分类号： G06F7/544 ,  G06F17/17

CPC分类号： G06F7/5446

摘要： A function arithmetic unit which performs elementary operations at high speeds and which enables required memory capacity to be reduced. The function arithmetic unit includes a constant memory which stores a constant that corresponds to the number of successive iterative operations; a controller which causes addition or subtraction in the successive iterative operations; and arithmetic units which receive, as initial values, an argument of an elementary function value to be found and two constants determined depending upon the elementary functions to be found, and which subject these initial values to n iterative operations to produce elementary function values. A further arithmetic unit subjects the elementary function values to multiplication, addition, subtraction, or division, or a combination thereof, thereby to produce the thus obtained value.

摘要翻译： 一种功能运算单元，其以高速执行基本操作，并且能够减少所需的存储器容量。 所述功能运算单元包括：恒定存储器，存储对应于连续迭代操作次数的常数; 在连续迭代操作中产生加法或减法的控制器; 以及算术单元，其作为初始值接收要发现的基本函数值的参数和根据要发现的基本函数确定的两个常数，以及将这些初始值映射到n个迭代操作以产生基本函数值。 另外的运算单元将基本函数值进行乘法，加法，减法或除法或其组合，从而产生如此获得的值。

公开(公告)号：US4879502A

公开(公告)日：1989-11-07

申请号：US192357

申请日：1988-05-10

申请人： Tunehiro Endo ,  Nobuaki Kato ,  Kenichi Iizuka ,  Fumio Tajima

发明人： Tunehiro Endo ,  Nobuaki Kato ,  Kenichi Iizuka ,  Fumio Tajima

IPC分类号： H02P6/08 ,  H02P6/14

CPC分类号： H02P6/14 ,  H02P6/085

摘要： In speed control apparatus and method for a motor operable to drive a load whose magnitude varies over a predetermined period which use a unit for controlling voltage or current supplied to the motor such that the speed of the motor can coincide with a command speed, n pieces of data indicative of voltages or currents supplied to the motor and corresponding to n divisions of the predetermined period are independently stored in a read/write storage, at least one of the n pieces of data is corrected at the rate of each of the n divisions in accordance with a difference between the command speed and the speed of the motor, and the voltage or current supplied to the motor is controlled in accordance with at least the one of the n pieces of data, so that pulsation and noise occurring especially under low revolutions can be minimized.

摘要翻译： 在用于电动机的速度控制装置和方法中，该电动机可操作以驱动其大小在预定时段内变化的负载，该预定时段使用用于控制供给电动机的电压或电流的单元，使得电动机的速度与指令速度一致，n个 指示提供给电动机并且对应于预定周期的n个分区的电压或电流的数据被独立地存储在读/写存储器中，n个数据中的至少一个以n个分区中的每一个的速率被校正 根据指令速度与电动机的速度的差异，根据n个数据中的至少一个来控​​制提供给电动机的电压或电流，使得特别是在低电平下发生的脉动和噪声 可以减少转数。

公开(公告)号：US4877574A

公开(公告)日：1989-10-31

申请号：US162987

申请日：1988-03-02

申请人： Hiroaki Suzuki ,  Yoshiyuki Kataoka ,  Michio Murase ,  Kotaro Inoue ,  Isao Sumida ,  Shozo Yamanari ,  Masaki Matsumoto ,  Satoshi Miura ,  Koji Hashimoto

发明人： Hiroaki Suzuki ,  Yoshiyuki Kataoka ,  Michio Murase ,  Kotaro Inoue ,  Isao Sumida ,  Shozo Yamanari ,  Masaki Matsumoto ,  Satoshi Miura ,  Koji Hashimoto

IPC分类号： G21C7/32

CPC分类号： G21C7/32 ,  Y02E30/39

摘要： A natural circulation reactor includes a reactor pressure vessel, a cylindrical shroud disposed within the reactor pressure vessel to surround a reactor core and to extend to a position above the reactor core, and a coolant descending passage defined between the reactor pressure vessel and the shroud for allowing the coolant discharged from the top of the reactor core to be again supplied to the bottom of the reactor core. In such a natural circulation reactor, a liquid level of coolant in the coolant descending passage is adjusted on the basis of a reactor power request signal at a position below a liquid level of coolant in the shroud, and thus reactor power is controlled so that it may reach a predetermined reactor power by adjusting the liquid level of coolant in the coolant descending passage.

摘要翻译： 自然循环反应器包括反应堆压力容器，设置在反应堆压力容器内以围绕反应堆堆芯并延伸到反应堆堆芯上方位置的圆柱形护罩，以及在反应堆压力容器和护罩之间限定的冷却剂下降通道， 允许将从反应堆堆芯顶部排出的冷却剂再次供应到反应堆堆芯的底部。 在这样的自然循环反应器中，根据在护罩中的冷却剂液面以下的位置的反应堆功率要求信号来调节冷却剂下降通道中的冷却剂液面，从而控制反应堆功率 可以通过调节冷却剂下降通道中的冷却剂的液位来达到预定的反应堆功率。

公开(公告)号：US4806277A

公开(公告)日：1989-02-21

申请号：US49942

申请日：1987-05-15

申请人： Mikio Sakurai ,  Tsutomu Hayashi ,  Masayuki Izumi ,  Hiroshi Sasaki ,  Thoru Satho ,  Kazuo Owada

发明人： Mikio Sakurai ,  Tsutomu Hayashi ,  Masayuki Izumi ,  Hiroshi Sasaki ,  Thoru Satho ,  Kazuo Owada

IPC分类号： B08B3/10 ,  G21F9/00 ,  G21F9/28 ,  B08B3/12 ,  B08B9/00

CPC分类号： B08B3/10 ,  G21F9/001

摘要： The present invention relates to a decontamination method in which an object to be decontaminated is immersed in a liquid, bubbles are produced by blowing vapor in the liquid, and these bubbles are caused to burst on a solid surface which constitutes the object to be decontaminated which is brought into contact with the liquid, whereby substances adhered to the solid surface are separated and removed by the impulsive force produced when the bubbles burst. Also provided is a method of decontaminating solid surfaces which exhibits a high degree of efficiency and a high level of safety.

摘要翻译： 本发明涉及一种净化方法，其中待净化的物体浸没在液体中，通过在液体中吹入蒸气来产生气泡，并且使这些气泡在构成待净化物体的固体表面上爆裂， 与液体接触，由此当气泡爆裂时产生的冲击力分离和去除附着在固体表面上的物质。 还提供了一种净化固体表面的方法，其表现出高效率和高水平的安全性。

公开(公告)号：US4653276A

公开(公告)日：1987-03-31

申请号：US837347

申请日：1986-03-07

申请人： Akira Sugano ,  Sachio Yamanobe

发明人： Akira Sugano ,  Sachio Yamanobe

IPC分类号： F22B35/00 ,  F01K3/22 ,  F01K13/02 ,  F22D5/00

CPC分类号： F01K3/22 ,  F01K13/02

摘要： An automatic control system for a thermal power plant comprises a master controller controlling a turbine in response to an externally applied load command signal, and producing a boiler input command signal by correcting the load command signal on the basis of the detected pressure of main steam generated from a boiler, and a water/steam process controller, a fuel process controller, a combustion process controller and a draft process controller to all of which the boiler input command signal is applied from the master controller. The process controllers apply control signals to equipments controlling a water/steam process, a fuel process, a combustion process and a draft process respectively among the terminal actuating equipments of the various parts of the boiler.

摘要翻译： 一种用于火力发电厂的自动控制系统包括：主控制器，其响应于外部施加的负载命令信号控制涡轮，并且通过基于检测到的主蒸汽产生的压力校正负载命令信号来产生锅炉输入命令信号 来自锅炉，以及水/蒸汽过程控制器，燃料过程控制器，燃烧过程控制器和牵伸过程控制器，所有这些都从主控制器施加锅炉输入命令信号。 过程控制器分别在锅炉各部分的终端致动设备中对控制水/蒸汽过程，燃料过程，燃烧过程和通风过程的设备施加控制信号。

公开(公告)号：US4544462A

公开(公告)日：1985-10-01

申请号：US620335

申请日：1984-06-13

申请人： Yasumasa Furutani ,  Yasuo Hira ,  Takashi Hasegawa ,  Akira Minato ,  Saburo Shoji ,  Osao Sumita

发明人： Yasumasa Furutani ,  Yasuo Hira ,  Takashi Hasegawa ,  Akira Minato ,  Saburo Shoji ,  Osao Sumita

IPC分类号： C23G1/24 ,  C25F1/00 ,  C25F1/04 ,  C25B1/04 ,  C25F1/06

CPC分类号： C23G1/24 ,  C25F1/04

摘要： The present invention provides a process for removing a metal surface oxide from a metallic substance by contacting the metal surface oxide layer with a deterging liquid to introduce electrons into the metal surface oxide in contact with the deterging liquid to dissolve the metal surface oxide, which process is characterized in that a metal piece or carbon piece is immersed in the deterging liquid into which gaseous hydrogen has been introduced and the metal piece or carbon piece is electrically connected to the metal surface oxide on the metallic substance. The metal piece is preferably platinum or vanadium. A preferred deterging liquid is one having a pH of about 5 to 7 and containing a complexing agent.

摘要翻译： 本发明提供了一种通过使金属表面氧化物层与洗涤液接触而将金属表面氧化物从金属表面氧化物中除去以将电子引入与洗涤液接触的金属表面氧化物中以溶解金属表面氧化物的方法，该方法 其特征在于，金属片或碳片浸渍在已经引入气态氢的洗涤液中，金属片或碳片与金属物质上的金属表面氧化物电连接。 金属片优选为铂或钒。 优选的洗涤液是pH为约5至7并且含有络合剂的洗涤液。

公开(公告)号：US4533514A

公开(公告)日：1985-08-06

申请号：US311886

申请日：1981-10-15

申请人： Michiyoshi Yamamoto ,  Katsumi Ohsumi ,  Shinji Mitani ,  Yoshie Takashima ,  Hiroo Igarashi

发明人： Michiyoshi Yamamoto ,  Katsumi Ohsumi ,  Shinji Mitani ,  Yoshie Takashima ,  Hiroo Igarashi

IPC分类号： G21D1/02 ,  G21C7/00 ,  G21C17/022 ,  G21C19/28 ,  G21D1/00 ,  G21D3/08 ,  G21C19/32

CPC分类号： G21C7/00 ,  G21C17/022 ,  G21C19/28 ,  G21Y2002/103 ,  G21Y2004/302 ,  G21Y2004/40 ,  Y02E30/39

摘要： Control rods are inserted into the core of a nuclear reactor in operation to shut down the reactor output. Before completion of entire control rod insertion, a high-temperature coolant flowing in piping for a reactor water clean-up system is sprayed into the space in the upper portion of the reactor vessel. As the space is under negative pressure, oxygen existing in the water droplets of the sprayed coolant is separated. After completion of entire control rod insertion, a residual heat removal system is operated. The spraying operation is discontinued and a low-temperature coolant cooled by a heat exchanger in the residual heat removal system is sprayed into said space. The coolant sprayed by said first spraying operation is not cooled by the heat exchanger in said residual heat removal system.

摘要翻译： 控制棒在操作中插入核反应堆的核心以关闭反应堆输出。 在整个控制棒插入完成之前，在反应堆水清洁系统的管道中流动的高温冷却剂被喷射到反应堆容器的上部的空间中。 当空间处于负压下时，喷射的冷却剂的水滴中存在的氧气被分离。 整个控制杆插入完成后，操作一个剩余的散热系统。 停止喷涂操作，并且将残留除热系统中的热交换器冷却的低温冷却剂喷射到所述空间中。 通过所述第一喷射操作喷射的冷却剂在所述剩余散热系统中不被所述热交换器冷却。

公开(公告)号：US4474064A

公开(公告)日：1984-10-02

申请号：US355357

申请日：1982-03-08

申请人： Akisuke Naruse ,  Tatsukuma Hosono ,  Kazuo Takaku ,  Shigeru Kajiyama

发明人： Akisuke Naruse ,  Tatsukuma Hosono ,  Kazuo Takaku ,  Shigeru Kajiyama

IPC分类号： G01N29/04 ,  G01N29/26 ,  G01N29/265 ,  G21C17/007 ,  G21C17/00

CPC分类号： G21C17/007 ,  G01N29/265 ,  G01N2291/02854 ,  G01N2291/2695

摘要： An ultrasonic flaw detector for detecting any flaw existing in the inner peripheral corner section of the joint portion between the barrel of a nuclear reactor pressure vessel and each of a plurality of cylindrical nozzles projecting from the barrel, by means of an ultrasonic wave applied from the outer peripheral corner section of the joint portion. The flaw detector has a probe pivotable around an axis which is made to follow up the locus of the center of curvature in the rounded surface of the outer peripheral corner section during the movement of the probe around the nozzle. According to this arrangement, it is possible to achieve a full automatic and remote control of the flaw detector except the attaching and detaching of the same, and to facilitate the processing of the signals representing the result of the flaw detection.

摘要翻译： 一种超声波探伤仪，用于检测存在于核反应堆压力容器的筒体与从筒体突出的多个圆柱形喷嘴中的每一个的内周角部分中存在的任何缺陷， 接合部的外周角部。 探伤器具有可围绕轴线枢转的探针，该探针在探针围绕喷嘴移动期间使其跟随外周角部分的圆形表面的曲率中心的轨迹。 根据这种布置，除了附着和分离之外，可以实现对缺陷检测器的全自动和远程控制，并且便于对表示缺陷检测结果的信号进行处理。

公开(公告)号：US4434620A

公开(公告)日：1984-03-06

申请号：US393335

申请日：1982-06-29

申请人： Hitoshi Ishimaru ,  Yoji Nagai ,  Toyohiko Masuda

发明人： Hitoshi Ishimaru ,  Yoji Nagai ,  Toyohiko Masuda

IPC分类号： F01K9/00 ,  F22D11/00 ,  F28B9/08 ,  F01K19/00

CPC分类号： F22D11/006

摘要： A condensation system for use in a power plant including a steam generator and steam turbine comprises at least one side stream condenser. The side stream condenser defines therein first and second hot wells with the first hot well receiving therein condensate produced by condensing steam exhausted from the steam turbine. A condensate pump device forcibly delivers the condensate through a condensate feed line having one end thereof connected to the first hot well and the other end communicating with the second hot well. A first purification device is provided in the condensate feed line to remove impurities from the condensate flowing therethrough. A main condensate pump device forcibly delivers the condensate through a main condensate feed line having one end thereof communicating with the condensate feed line and the other end connected to the steam generator. A second purification device is provided in the main condensate feed line downstream of the main condensate pump device, for removing impurities from the condensate introduced into the steam generator through the main condensate feed line.

摘要翻译： 一种用于包括蒸汽发生器和蒸汽轮机的发电厂的冷凝系统包括至少一个侧流冷凝器。 侧流冷凝器在其中限定第一和第二热井，其中第一热井容纳通过冷凝从蒸汽轮机排出的蒸汽而产生的冷凝物。 冷凝水泵装置强制地将冷凝物输送通过冷凝水进料管线，冷凝水进料管线的一端连接到第一热水井，另一端连通第二热井。 第一净化装置设置在冷凝物进料管线中以从流过其中的冷凝水中除去杂质。 主冷凝水泵装置强制地将冷凝水输送通过主冷凝水进料管，其主端与冷凝液进料管连通，另一端与蒸汽发生器相连。 第二净化装置设置在主冷凝水泵装置下游的主冷凝水进料管线中，用于通过主冷凝物进料管线从引入蒸汽发生器的冷凝物中除去杂质。

公开(公告)号：US4245182A

公开(公告)日：1981-01-13

申请号：US891001

申请日：1978-03-28

申请人： Hiroaki Aotsu ,  Akira Isono ,  Masuo Goto ,  Koichi Kimura ,  Yasushi Momochi ,  Takaaki Kai ,  Satoshi Kitamura ,  Akihisa Kaihara ,  Hirosi Okada

发明人： Hiroaki Aotsu ,  Akira Isono ,  Masuo Goto ,  Koichi Kimura ,  Yasushi Momochi ,  Takaaki Kai ,  Satoshi Kitamura ,  Akihisa Kaihara ,  Hirosi Okada

IPC分类号： H02J3/50 ,  H02P9/10 ,  H02P9/14 ,  H02P9/30

CPC分类号： H02P9/10 ,  H02P9/30 ,  Y10S174/15 ,  Y10T307/718

摘要： A field control apparatus for a generator having a field winding comprises a terminal voltage control unit for controlling a field current of the generator in accordance with a difference between a terminal voltage signal of the generator and a reference voltage signal, which control unit has at least one of a line drop compensation function, an under-excitation limitation function, an over-excitation limitation function, a power factor regulation function, an armature winding over-current compensation function and a cross-current compensation function. The field control apparatus includes a detector as a common signal source for detecting active power and reactive power components at an output terminal of the generator and means responsive to the output of the detector for performing scalar operation in accordance with a function of the added compensation/control function described above. An output of the operating means is added to the differential signal as an added function signal to control the field current for excitation of the field winding.

摘要翻译： 一种具有励磁绕组的发电机的现场控制装置，包括端子电压控制单元，用于根据发电机的端子电压信号与参考电压信号之间的差值控制发电机的励磁电流，该控制单元至少具有 线路补偿功能，励磁限制功能，过励磁限制功能，功率因数调节功能，电枢绕组过电流补偿功能和交叉电流补偿功能之一。 现场控制装置包括作为公共信号源的检测器，用于在发生器的输出端子处检测有功功率和无功功率分量，并且响应于检测器的输出，根据附加补偿/补偿的函数进行标量运算的装置， 上述控制功能。 操作装置的输出作为附加功能信号加到差分信号上，以控制用于励磁绕组的励磁电流。