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    • 2. 发明专利
    • Control device of steam turbine
    • 蒸汽涡轮机控制装置
    • JPS6153405A
    • 1986-03-17
    • JP17444684
    • 1984-08-22
    • Toshiba Corp
    • IIZUKA WAHEI
    • F01D17/10F01D17/26
    • F01D17/26
    • PURPOSE:To realize augmentation of opening of a steam adjusting valve even during low load and control erosion and generation of vibration by providing, on a steam stop valve of a steam turbine equipment, a throttle mechanism which controls an inner valve of the stop valve to the medium opening degree. CONSTITUTION:In a condition where an inner valve 21 of a steam stop valve 12 is fully opened and power generation load is controlled by a steam adjusting valve 13, when said power generation load comes to be low load, the steam stop valve 13 is throttled into low opening degree. At the same time, a control cylinder 42, a piston 43 and a connecting rod 44 are moved upward by means of a control motor 41, while a control lever 46 is rocked round a fulcrum 47a of a righting rod 47 and a piston 49 is pulled up. As a result, oil pressure in a control cylinder 48 is lowered to cause lowering of the coil pressure of each cylinder 32, 24, then a piston 25 is lowered and the position of the inner valve 21 is lowered. Accordingly, the righting rod 47 fitted to a valve rod 23 is also lowered causing the piston 49 to be lowered. Thus, oil pressure in the cylinder is adjusted to the controlling oil pressure force balanced with the position of the inner valve 21.
    • 目的:即使在低负载下实现蒸汽调节阀的打开增加,并且通过在汽轮机设备的蒸汽截止阀上设置控制止回阀的内阀的节气门机构来控制冲击和产生振动, 中等开度。 构成:在蒸汽截止阀12的内部阀21完全打开并且通过蒸汽调节阀13控制发电负荷的情况下,当发电负载为低负载时,停止阀13被节流 进入低开放度。 同时,控制缸42,活塞43和连杆44通过控制电动机41向上移动,同时控制杆46围绕扶正杆47的支点47a摇摆,活塞4​​9为 拉上来。 结果,控制缸48中的油压降低,导致每个气缸32,24的盘管压力降低,然后活塞25下降并且内阀21的位置降低。 因此,安装在阀杆23上的矫直杆47也下降,使活塞49降低。 因此,气缸中的油压被调节到与内阀21的位置平衡的控制油压力。
    • 3. 发明专利
    • Control device of steam turbine
    • 蒸汽涡轮机控制装置
    • JPS6128701A
    • 1986-02-08
    • JP14865484
    • 1984-07-19
    • Toshiba Corp
    • TAKAHASHI TATSUO
    • F01D17/24F01D17/26
    • F01D17/26
    • PURPOSE:To prevent a change of the inlet steam pressure to a turbine, by controlling the closing speed of a turbine bypass valve performing a follow-up motion to the actual opening of a main steam control valve when its rapid opening instruction is input. CONSTITUTION:A signal v8, obtained by a speed deviation signal v3 and a pressure deviation signal v6 passing through a low value selector 14, controls a main steam control valve 3. While a turbine bypass valve opening instruction value v15, obtain by a deviation v11 between a pressure control instruction value v7 and the main steam control valve opening instruction value v8 and a deviation v14 between the instruction value v7 and a main steam control valve opening signal v9 passing through a high value selector 23, controls a bypass valve 6. In this way, a control device actuates the bypass valve 6 to start opening performing a follow-up motion to the main steam control valve if it starts closing by increasing the speed of a turbine while it is in pressure control operation, and the control device controls the bypass valve 6 to be closed at an equal changing speed by opening the main steam control valve 3 if the speed of the turbine begins to return to the reference value.
    • 目的:为了防止对涡轮机的入口蒸汽压力的变化,通过控制当其输入快速打开指令时对主蒸汽控制阀的实际打开执行跟随运动的涡轮旁通阀的关闭速度。 构成:通过速度偏差信号v3获得的信号v8和通过低值选择器14的压力偏差信号v6控制主蒸汽控制阀3.当涡轮旁通阀打开指示值v15通过偏差v11 在压力控制指令值v7和主蒸汽控制阀打开指示值v8之间以及通过高值选择器23的指令值v7与主蒸汽控制阀打开信号v9之间的偏差v14控制旁通阀6.在 以这种方式,如果控制装置在主压力控制操作期间通过增加涡轮的速度开始关闭,则致动旁通阀6开始打开,以对主蒸汽控制阀执行后续运动,并且控制装置控制 如果涡轮的速度开始返回到基准值,则通过打开主蒸汽控制阀3以相等的变化速度关闭旁通阀6。
    • 8. 发明专利
    • Control device for turbine
    • 涡轮控制装置
    • JPS5937207A
    • 1984-02-29
    • JP14733182
    • 1982-08-25
    • Fuji Electric Co Ltd
    • KAMIO TADAYOSHI
    • F01D17/06F01D17/14F01D17/26F01D21/14H02P9/04
    • H02P9/04F01D17/06F01D17/145F01D17/26
    • PURPOSE: To enable a replacement of one system to another system even if the former is troubled and keep a continuous operation of the turbine by a method wherein a hydraulic line from a sensor for sensing the number of rotations of the turbine is connected to a speed governor for two different frequencies through a change-over valve.
      CONSTITUTION: In the region where 50Hz and 60Hz are applied, a governor impeller 7 is directly connected to the shaft of a turbine 5 for driving a generator 6, and hydraulic pressure corresponding to the number of rotations of the turbine is selectively supplied to a governor 10 for 50Hz and a governor 12 for 60Hz through a passage 9 and a change-over valve 14. A difference between the desired values of speed setting units 8, 11 and the sensed pressure is defined by each of the governors 10, 12, and an adjusting valve 3 is controlled through a hydraulic servo motor 4. Even if a power system is troubled during an operation at one frequency, the other power system is connected to a generator 6 and the operation can be smoothly transferred to the other system only with a change-over of the change-over valve 14, and the turbine can be continuously operated.
      COPYRIGHT: (C)1984,JPO&Japio
    • 目的:为了使一个系统更换为另一个系统,即使前者受到困扰,并且通过一种方法来保持涡轮机的连续运行,其中用于感测涡轮机的转数的传感器的液压管线连接到速度 调速器通过换向阀两个不同的频率。 构成:在施加50Hz和60Hz的区域中,调速器叶轮7直接连接到用于驱动发电机6的涡轮机5的轴,并且与涡轮机的转数相对应的液压选择性地被供给到调速器 10为50Hz,调节器12为60Hz,通过通道9和转换阀14.速度设定单元8,11的期望值与感测到的压力之间的差异由每个调速器10,12和 调节阀3通过液压伺服马达4进行控制。即使电力系统在一个频率的运行期间发生故障,另一个电力系统连接到发电机6,该操作可以平稳地转移到另一个系统, 可以连续地操作转换阀14和涡轮机的转换。