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11. 发明专利

JP2005002993A Steam turbine 有权
标题翻译：汽轮机
公开(公告)号：JP2005002993A
公开(公告)日：2005-01-06
申请号：JP2004147808
申请日：2004-05-18
申请人： Toshiba Corp , 株式会社東芝
发明人： NAGANE KOHEI , YAMASHITA KATSUYA , SHINOZAKI YUKIO
IPC分类号： F01D9/02 , F01D25/12 , F01D25/24
摘要： PROBLEM TO BE SOLVED: To provide a steam turbine to manage with a high temperature steam and capable of maintaining a high strength guarantee for turbine component parts such as a turbine nozzle box.
SOLUTION: The steam turbine 2 is equipped with an outer casing 32, an inner casing 33, a turbine rotor 34 to rotate upon being accommodated in the inner casing 33, a turbine step 28, a turbine nozzle box 31, and a shield plate installed on the outside of the turbine nozzle box 31 along the turbine nozzle box.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种用高温蒸汽管理的蒸汽轮机，并能够为诸如涡轮喷嘴箱的涡轮机部件保持高强度保证。蒸汽涡轮机2配备有外壳32，内壳33，涡轮转子34，以便在容纳在内壳33中时旋转，涡轮机台阶28，涡轮喷嘴箱31和屏蔽板沿涡轮喷嘴箱安装在涡轮喷嘴箱31的外侧。版权所有（C）2005，JPO＆NCIPI

12. 发明专利

JPH05106406A COOLING METHOD FOR STEAM TURBINE 失效
公开(公告)号：JPH05106406A
公开(公告)日：1993-04-27
申请号：JP27251591
申请日：1991-10-21
申请人： TOSHIBA CORP
发明人： YOKOUCHI KIKUO , MOMOSE ISAMU , SHINOZAKI YUKIO , HOSOI SHIGEO
IPC分类号： F01D25/12
摘要： PURPOSE:To reduce the temperature of the inner metal of a steam turbine down to a prescribed temperature after stopping its operation. CONSTITUTION:In a steam turbine in which high temperature high pressure steam flows from a turbine high pressure part 3 into a condenser 6 through a turbine low pressure part 5, an opening port part 7 is opened to a high position of the steam turbine. Inner high temperature air is raised by convection, and discharged from the opening port part 7 toward an outside, directly or through an exhaust cylinder 8 or an intake device. Furthermore, outside air is absorbed from gland packing parts, 9, 9,... of the steam turbine, and displaced with stagnant air in the steam turbine. It is thus possible to cool inner metal of the steam turbine.

13. 发明专利

JPS6189912A Turbine vibration monitoring device 失效
标题翻译：涡轮振动监测装置
公开(公告)号：JPS6189912A
公开(公告)日：1986-05-08
申请号：JP21140684
申请日：1984-10-11
申请人： Toshiba Corp
发明人： SHINOZAKI YUKIO
IPC分类号： F01D21/14 , F01D25/00 , G21C17/003 , G21C17/00
CPC分类号： F01D21/14
摘要： PURPOSE:To prevent unnecessary trip due to earthquake and to make it possible to monitor low frequency shaft vibration, by providing a high bound filter parallel with a bypass circuit which permits passing low frequency signals only on a turbine vibration monitoring device. CONSTITUTION:On a monitoring device for turbine shaft vibration, a comparator 15 is provided which produces signals to stop a rotating shaft, when vibration signals from a detector 12 exceed a standard value. And an earthquake filter 23 is provided between a switching device 25l and an integrator 13. The earthquake filter 23 cuts comparatively low frequency signals among vibrations of the rotating shaft. Also, by providing a bypass circuit 24 which bypasses the earthquake filter between the switching device 25 and the integrator 13, a timer 26 switches the current to the filter 23 side and to the bypass circuit 24 side periodically. Thus, the low frequency abnormal vibration can be detected through the bypass circuit 24.
摘要翻译：目的：为了防止由于地震引起的不必要的跳闸，并且可以通过提供与旁路电路并联的高边界滤波器来监测低频轴振动，该旁路电路仅允许在涡轮振动监测装置上通过低频信号。构成：在用于涡轮轴振动的监视装置上，当来自检测器12的振动信号超过标准值时，提供比较器15，该比较器15产生信号以停止旋转轴。并且在开关装置251和积分器13之间设置有防震滤波器23.地震滤波器23在旋转轴的振动之间切割较低频率的信号。此外，通过在开关装置25和积分器13之间设置绕过过滤器的旁通回路24，定时器26将周期性地将电流切换到过滤器23侧和旁路回路24侧。因此，可以通过旁路电路24检测低频异常振动。

14. 发明专利

JPS5970810A Steam turbine 失效
标题翻译：汽轮机
公开(公告)号：JPS5970810A
公开(公告)日：1984-04-21
申请号：JP18000582
申请日：1982-10-15
申请人： Toshiba Corp
发明人： IKEDA TAKASHI , AIZAWA KIYOU , KODAMA HIROTSUGU , SHINOZAKI YUKIO
IPC分类号： F01D5/06 , F01D5/08 , F01D5/28 , F01D25/00
CPC分类号： F01D25/007
摘要： PURPOSE:To enhance reliability of a turbine rotor and prolong its life by forming a steam supply, which shall supply a pure steam into a key seat through a micro-gap between any two adjoining pair of discs, and thereby giving the key seat a fine circumstance, in which there is no fear of generation of stress corrosion cracks. CONSTITUTION:A pure steam produced in a source 10 sent to a through hole 13 after passing a pipeline 11 is injected to the basis of adjoining disc 1, 1 from near a labyrinth packing 9 through a through hole 14 fromed in a nozzle diaphragm 8 to cause spattering of the back water stagnating there as well as intrudes in key seats 4, 5 from a gap 7 to put the under a pure circumstance, so as to eliminate such environment as generates stress corrosion cracks. Thus generation of cracks is prevented. Propagation of cracks can be suppressed by putting aside the ambient temp. of the disc 1 out of the range with fast propagation speed of stress corrosion cracks by means of adjustment of the steam temp. in the source 10. Further, good prevention is obtained by suppling the steam from the source 10 only during operation in the range with low pressure in starting only at the stages from first to fifth stage.
摘要翻译：目的：为提高涡轮转子的可靠性，并通过形成蒸汽供应来延长其使用寿命，蒸汽供应将通过任何两个相邻的一对圆盘之间的微缝隙将纯蒸汽提供到钥匙座中，从而给钥匙座一个罚款在这种情况下，不用担心产生应力腐蚀裂纹。构成：在通过管道11之后送到通孔13的源10中产生的纯蒸汽从迷宫式填料9附近通过穿过喷嘴隔膜8的通孔14注入邻接盘1,1的基础，导致滞留在那里的回水飞溅，并从间隙7进入关键座4,5，放在纯粹的环境下，以消除产生应力腐蚀裂纹的环境。从而防止产生裂缝。通过放置环境温度可以抑制裂纹的传播。通过调节蒸汽温度，光盘1超出范围，应力腐蚀裂纹的传播速度快。另外，仅在起动范围内的操作期间，仅在起动阶段从第一至第五阶段提供来自源10的蒸汽，从而获得良好的防止。

15. 发明专利

JPH04298602A STEAM TURBINE STARTING EQUIPMENT 失效
公开(公告)号：JPH04298602A
公开(公告)日：1992-10-22
申请号：JP8583191
申请日：1991-03-27
申请人： TOSHIBA CORP
发明人： SHINOZAKI YUKIO
IPC分类号： F01D19/00
摘要： PURPOSE:To shorten the time required for starting until a steam turbine reaches target load by supplying low temperature steam to a low pressure turbine after a boiler is ignited to start the steam turbine, and by supplying steam to an intermediate pressure turbine and a high pressure turbine sequentially in accordance with rise of boiler steam temperature. CONSTITUTION:A high pressure bypass control valve 15 which is opened or closed to control the amount of main steam which is bypassed from an inlet of a high pressure turbine 3 to a boiler 1 when a steam turbine is started in accordance with the temperature of main steam is installed in a high pressure bypass pipe 14. Also, an intermediate pressure bypass control valve 17 which is opened or closed to control the amount of reheated steam at an inlet of an intermediate pressure turbine 6 which is bypassed to an outlet and supplied to a low pressure turbine 8 when the steam turbine is started in accordance with the temperature of reheated steam at the inlet of the intermediate pressure turbine 6 is installed in an intermediate pressure bypass pipe 16. Since it is possible to supply low temperature steam to the low pressure turbine 8 after the boiler 1 is ignited to start the steam turbine and to the intermediate pressure turbine 6 and the high pressure turbine 3 sequentially in accordance with rise of steam temperature of the boiler 1, the time required for starting can be shortened.

16. 发明专利

JPS59150907A Device for corrosion crack prevention for steam turbine 失效
标题翻译：用于蒸汽涡轮机的腐蚀防裂装置
公开(公告)号：JPS59150907A
公开(公告)日：1984-08-29
申请号：JP2330883
申请日：1983-02-15
申请人： Toshiba Corp
发明人： AKIBA MASAFUMI , SHINOZAKI YUKIO
IPC分类号： F01D5/06 , F01D11/02 , F01D11/04
CPC分类号： F01D11/02
摘要： PURPOSE:To prevent stress corrosion cracks of a shrinkage fit rotor disc section by opening a vent passage communicating to a low pressure side in an intermediate section of a labyrinth packing provided in the inner circumferential surface of a nozzle diaphragm. CONSTITUTION:A through hole 11a is drilled in a nozzle diaphragm for a stage which is liable to stress corrosion cracks, one end of which is communicated to an intermediate section of a labyrinth packing 9a provided in the inner circumferential surface of the diaphragm, and the other end to an intermediate section of a labyrinth packing 9b of the following stage by way of a pipe 12. By this constitution, as the temperature of steam flowing from the labyrinth packing 9a into a key groove 4b is reduced to a temperature proportionate to the pressure in the following stage, the steam condensation in the key groove 4b can be prevented so that stress corrosion cracks of a shrinkage fit rotor disc section may be prevented.
摘要翻译：目的：通过在设置在喷嘴隔膜的内周面的迷宫式密封件的中间部分中打开与低压侧连通的排气通道来防止收缩配合转子盘部的应力腐蚀裂纹。构成：在喷嘴隔膜中钻出通孔11a，该喷嘴隔膜易于产生应力腐蚀裂纹，其一端与设在隔膜的内周面上的迷宫式密封件9a的中间部分连通，另一端通过管道12连接到后段的迷宫式密封件9b的中间部分。通过这种构造，随着从迷宫式密封件9a流入键槽4b的蒸汽的温度降低到与在下一阶段的压力下，可以防止键槽4b中的蒸汽冷凝，从而可以防止收缩配合转子盘部分的应力腐蚀裂纹。

17. 发明专利

JPH06117204A FORCED COOLING DEVICE FOR STEAM TURBINE 失效
公开(公告)号：JPH06117204A
公开(公告)日：1994-04-26
申请号：JP28814792
申请日：1992-10-05
申请人： TOSHIBA CORP
发明人： SUZUKI ATSUHIDE , AYANO SHINYA , SHINOZAKI YUKIO , HOSOI SHIGEO
IPC分类号： F01D25/12 , F01D25/26 , F01D25/34
摘要： PURPOSE:To shorten cooling time while preventing contact between a rotating part and a stationary part by introducing cooling air between a steam path between an internal casing and a rotor and a space between the internal casing and an external casing during the turning operation, and controlling the amount of cooling air, respectively CONSTITUTION:A cooling air is flowed through flow control valves 23 and 24 into a space between a high pressure external casing 12 and a high pressure internal casing 13 of a turbine. On the other hand, the cooling air is flowed from a main steam inlet part 12a through a flow control valve 19 into a steam path between a high pressure rotor 14 and the high pressure internal casing 13. The amount of air flow in the steam path is controlled by the flow control valve 19 according to turbine high pressure extension difference detection signal to eliminate rotor shortage condition. Also the flow control valves 23 and 24 are controlled by a signal of temperature difference between a casing upper half metal temperature detection thermocouple 27 and a casing lower half metal temperature detection thermocouple 28 to suppress the bending of the casing within the area that a rotor is not made in contact with a stationary section. Thus the number of days for cooling is shortened.

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