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    • 1. 发明授权
    • Voltage monitoring circuit
    • 电压监控电路
    • US5568074A
    • 1996-10-22
    • US309899
    • 1994-09-20
    • Kouichi KitaguchiYoshihide Okumura
    • Kouichi KitaguchiYoshihide Okumura
    • H03F3/45G01R19/165H03F3/08H03K5/22H03K17/04
    • H03F3/085G01R19/1659G01R19/16557
    • The positive input terminal (1), the negative input terminal (2) and the differential amplifier (10) are connected to the voltage converting circuit (9a). The differential amplifier (10) is composed of the operational amplifier (6) and the resistors (5a, 5b, 5c and 5d). The voltage converting circuit (9a) includes NPN transistors (91, 92 and 93). The base of the transistor (91) is connected to the positive input terminal (1) and the base of the transistor (92) is connected to the reference potential input end (3) to which the reference potential (V.sub.x) is applied, respectively. The collectors of the transistors (91 and 92) are connected to the potential point (81) in common and the emitters are connected to the other end of the resistor (5a). The base of the transistor (93) is connected to the negative input terminal (2), the collector is connected to the potential point (81) and the emitter is connected to the other end of the resistor (5c). It is prevented that the voltage applied to the differential amplifier (10) considerably differs from the desired value (V.phi.). The delay time of the output potential for a sharp change in the input voltage is shortened.
    • 正输入端(1),负输入端(2)和差分放大器(10)连接到电压转换电路(9a)。 差分放大器(10)由运算放大器(6)和电阻(5a,5b,5c,5d)构成。 电压转换电路(9a)包括NPN晶体管(91,92和93)。 晶体管(91)的基极连接到正输入端(1),晶体管(92)的基极分别与施加了基准电位(Vx)的基准电位输入端(3)连接 。 晶体管(91和92)的集电极共同连接到电位点(81),发射极连接到电阻器(5a)的另一端。 晶体管(93)的基极连接到负输入端子(2),集电极连接到电位点(81),发射极连接到电阻器(5c)的另一端。 防止施加到差分放大器(10)的电压与期望值(V phi)显着不同。 输入电压急剧变化的输出电位的延迟时间缩短。
    • 2. 发明授权
    • Steam turbine
    • 汽轮机
    • US06332754B1
    • 2001-12-25
    • US09541622
    • 2000-04-03
    • Minoru MatsudaMasataka KikuchiNobuo OkitaKouichi Kitaguchi
    • Minoru MatsudaMasataka KikuchiNobuo OkitaKouichi Kitaguchi
    • F01D102
    • F01D25/24F01D1/04F01D3/02
    • A steam turbine comprises, in combination, at least two of a high pressure turbine section, an intermediate pressure turbine section and a low pressure turbine section in a single turbine casing and the steam turbine generally satisfies such design requirements as: a main steam pressure of 100 kg/cm2 or more; a main steam temperature of 500° C. or more; a rated output (power) of 100 MW or more; and a unit rotated at a rotation speed of 3,000 rpm equipped with a last-stage movable blade of the turbine having an effective blade length of 36 inches or more, or a unit rotated at a rotation speed of 3,600 rpm equipped with a last-stage movable blade of the turbine having an effective blade length of 33.5 inches or more. In such steam turbine, a turbine exhaust chamber of the low pressure turbine section has a structure extending towards both sides of a transverse direction of the turbine casing, towards the upper side thereof or in the axial direction thereof.
    • 蒸汽涡轮机组合地包括单个涡轮机壳体中的高压涡轮部分,中压涡轮机部分和低压涡轮机部分中的至少两个,并且蒸汽涡轮机通常满足以下设计要求:主蒸汽压力 100kg / cm 2以上; 主蒸汽温度为500℃以上; 额定输出(功率)为100MW以上; 并且以3000rpm的转速旋转的单元配备有具有36英寸或更大的有效叶片长度的涡轮机的最后一级可动叶片,或以3606rpm的转速旋转的单元,其具有最后阶段 涡轮机的可动叶片具有33.5英寸或更大的有效叶片长度。 在这种蒸汽轮机中,低压涡轮机部分的涡轮机排气室具有朝向涡轮机壳体的横向两侧朝向其上侧或其轴向方向延伸的结构。
    • 8. 发明申请
    • STEAM TURBINE
    • 汽轮机
    • US20090053048A1
    • 2009-02-26
    • US12195905
    • 2008-08-21
    • Hiroshi KAWAKAMIKazutaka IkedaKouichi Kitaguchi
    • Hiroshi KAWAKAMIKazutaka IkedaKouichi Kitaguchi
    • F01D11/08
    • F01D11/005F01D9/047F01D25/26F05D2240/55
    • A steam turbine has a stationary section, a turbine rotor, nozzle diaphragms, a steam passage section, a nozzle box and a sealing. The stationary section includes a casing. The turbine rotor includes moving blade stages. Each of the moving blade stages has turbine moving blades. Each of the nozzle diaphragms has turbine nozzles. The moving blade portions and the turbine nozzle portions constitute the steam passage. The nozzle box is held by the stationary section and arranged at an upstream side of the steam passage coaxially with the turbine rotor. The sealing divides a space between the turbine rotor and the casing into a first space provided at an inner side and a second space provided at an outer side of the nozzle box.
    • 蒸汽轮机具有静止部分,涡轮机转子,喷嘴隔膜,蒸汽通道部分,喷嘴箱和密封件。 固定部分包括壳体。 涡轮转子包括动叶片级。 每个动叶片级具有涡轮动叶片。 每个喷嘴隔膜都具有涡轮喷嘴。 动叶片部分和涡轮喷嘴部分构成蒸汽通道。 喷嘴箱由静止部分保持,并且布置在与涡轮转子同轴的蒸汽通道的上游侧。 密封件将涡轮转子和壳体之间的空间分成设置在喷嘴箱的外侧的内侧的第一空间和第二空间。