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1. 发明专利

JPH0886227A STARTING METHOD FOR COMBINED SHAFT SYSTEM 失效
公开(公告)号：JPH0886227A
公开(公告)日：1996-04-02
申请号：JP22196194
申请日：1994-09-16
申请人： TOSHIBA CORP
发明人： NOMOTO HIDEO , HISA SHIYOUICHI , KONO TAKESHI
IPC分类号： F01D19/00 , F01K13/02 , F01K23/10 , F01K23/16 , F02C7/277
摘要： PURPOSE: To smoothly increase rotational speed by starting a combined shaft system without using a starting motor. CONSTITUTION: A combined shaft system 23 is prepared by coaxially arranging a compressor 14, a gas turbine 16, a power generator 17 and a steam turbine 18. When the combined shaft system 23 is started and increased in its rotation, steam from the other combined shaft system 24 or an auxiliary steam boiler is fed to the steam turbine 18. Rotational speed is increased to reach self rotational speed.

2. 发明专利

JPH0281903A TURNING OPERATION METHOD FOR STEAM TURBINE 失效
公开(公告)号：JPH0281903A
公开(公告)日：1990-03-22
申请号：JP23341188
申请日：1988-09-20
申请人： TOSHIBA CORP
发明人： NOMOTO HIDEO
IPC分类号： F01D25/36 , F01D21/00
摘要： PURPOSE:To enable the prevention of the detachment of a gear during a continuous turning by detecting the governor valve opening angle and rotor rotation number to release the excitation of an air cylinder. CONSTITUTION:When a turning motor 12 is rotated by a turning device automatic signal 8, a governor valve full-closing signal 10 is denied by a NOT circuit NOT3, and a wipe out WO3 remains as it is. Thus, an air cylinder 4 remains excited during a continuous turning, and a turning gear 1 is forcedly engaged with a rotor gear 2. The turning gear 1 is difficult to detach from the rotor gear 2 even when the torque is reduced by the fluctuation of the rotation torque on the rotor side, and a smooth turning operation can be conducted. On the other hand, when the governor valve is opened and the governor valve full-closing signal 10 is disappeared, the wipe out WO3 is moved by the hot circuit NOT3 to make the air cylinder 4 unexcited, and the turning gear 1 is detached.

3. 发明专利

JPH06129202A DEVICE FOR RESTRAINING VIBRATION OF ROTOR IN STEAM TURBINE 失效
公开(公告)号：JPH06129202A
公开(公告)日：1994-05-10
申请号：JP27725992
申请日：1992-10-15
申请人： TOSHIBA CORP
发明人： NOMOTO HIDEO
IPC分类号： F01D5/08 , F01D5/10 , F01D25/12
摘要： PURPOSE:To restrain unbalance of a rotor in a steam turbine transiently caused by circumferential ununiformity of physical values, and vibration accompanied therewith. CONSTITUTION:Either or both of balance holes 9a, 9b, 9c, 9d, 9e and scoops 10, that are adapted to allow a part of blade outlet side steam whose temperature drops caused by a heat drop due to expansion of the steam, are arranged irregularly in the circumferential direction of the rotor in accordance with circumferential uniformity of the physical values of a turbine rotor so that the cooling effects by the steam, is ununiform circumferentially.

4. 发明专利

JPH04347304A OVER SPEED TEST SYSTEM FOR STEAM TURBINE 失效
公开(公告)号：JPH04347304A
公开(公告)日：1992-12-02
申请号：JP12082891
申请日：1991-05-27
申请人： TOSHIBA CORP
发明人： NOMOTO HIDEO
IPC分类号： F01D21/00 , F01D25/00
摘要： PURPOSE:To improve reliability and stability when over speed test is carried out, while reducing the load rising time of a steam turbine plant by measuring the fracture transition temperature of a rotor precisely so as to judge automatically whether the over speed test can be carried out, or not. CONSTITUTION:Turbine rotor temperature estimating/confirmating means 120, 121, 130, 131 are provided so as to estimate and confirm the temperature of a turbine rotor. In addition, over speed test execution judging means 122, 132 are provided so as to compare the temperatures of the turbine rotor which are estimated and confirmed by turbine rotor temperature estimating confirmating means 26, 40 with the fracture transition temperature of the turbine rotor which is stored in advance, and it is judged whether the over speed test is carried out.

5. 发明专利

JPS61129402A Turbine rotor 失效
标题翻译：涡轮转子
公开(公告)号：JPS61129402A
公开(公告)日：1986-06-17
申请号：JP25088484
申请日：1984-11-28
申请人： Toshiba Corp
发明人： NOMOTO HIDEO
IPC分类号： F01D5/06 , F01D5/02 , F16D1/08
CPC分类号： F16D1/0876 , F01D5/025
摘要： PURPOSE:To reduce the local stress of a disc, by forming a radial key protrusion in a side surface of a hub part of the disc, mounted to a rotor and having moving blades in the periphery, and fitting this protrusion to a radial key groove formed in a side surface of a torque ring. CONSTITUTION:A turbine rotor arranges both a disc 3, fitting a rotor 1 and having moving blades 2 in the periphery, and a torque ring 13 neighboring to the disc 3 further fitting the rotor 1. And the torque ring 13 is connected with the rotor 1 by a bore key 16. Here the disc 3 forms in its hub part 11 a radial key protrusion 18 protruding sideward. While the torque ring 13 forms in its side surface a radial key groove 19 fitting the protrusion 18. In this way, the disc 3, even when its shrinkage fit surface generates looseness, enables torque to be surely transmitted from the moving blade 2 to the rotor 1. While the disc 3, forming no key groove, can eliminate concentration of stress generated in the key groove.
摘要翻译：目的：为了减小盘的局部应力，通过在盘的轮毂部分的侧表面中形成径向键突起，安装到转子上并在周边具有移动叶片，并将该突起装配到径向键槽形成在扭矩环的侧面。构成：涡轮转子将圆盘3，配合转子1并具有活动叶片2的周边，以及与盘3相邻的扭矩环13，其进一步配合转子1.并且扭矩环13与转子这里，盘3在其轮毂部分11中形成向侧面突出的径向键突起18。而转矩环13在其侧面形成有与突起18嵌合的径向键槽19.以这种方式，盘3即使在其收缩配合面产生松动的情况下，也能够将转矩确定地从动叶片2传递到转子1.当不形成键槽的盘3可以消除钥匙槽中产生的应力集中。

6. 发明专利

JPS5970801A Turbine rotor 失效
标题翻译：涡轮转子
公开(公告)号：JPS5970801A
公开(公告)日：1984-04-21
申请号：JP17976482
申请日：1982-10-15
申请人： Toshiba Corp
发明人： NOMOTO HIDEO
IPC分类号： F01D5/06 , F01D5/00
CPC分类号： F01D5/005
摘要： PURPOSE:To simmplify repairing work of a turbine rotor and make it with good accuracy by fitting a two-divided ring on a two-divided spacer for rotor covering, oupling the ring with flange by a pin upon adjustment for center alignment, and installing the pin driven in a position mating with the position of coupling. CONSTITUTION:Projections 14, 14b are coupled firmly as in a single piece by penetrating flanges 14a, 14a provided at both ends of a spacer 14, which is divided in the axial direction of the pipe into two halves, and rings 15, 15 divided in the axial direction of the pipe into two halves are fitted on the ends of the projections, and after this fitting, these rings and flanges are connected through a counter-rotation stopper 17 and a bolt 16. Here the bolt is inserted from the inside of each flange, and a bolt hole 18 is bored so as not to protrude at the exterior surface of each ring. Because error in center alignment must be eliminated when the covering of spacer ring is to be set around the rotor, center alignment is taken while the axes are adjusted with each other, and then a tapered pin 19 is caulked. Thereafter bolts are inserted in the bolt holes 18.
摘要翻译：目的：为了简化涡轮转子的修理工作，并通过在两分隔垫片上安装一个双分隔环进行转子覆盖，使其具有良好的精度，通过调整中心对准，将该环与法兰相连，并安装销被驱动在与联接位置配合的位置。构成：突出部14,14b通过穿过设置在间隔件14的两端的凸缘14a，14a牢固地连接成一体，该间隔件14在管的轴向方向上划分为两半，以及分隔开的环15,15 将管道的轴向安装在两个半部的两端，并且在这种配合之后，这些环和凸缘通过反向旋转止动器17和螺栓16连接。这里，螺栓从每个凸缘和螺栓孔18被钻孔，以便不在每个环的外表面处突出。由于当围绕转子设置间隔环的覆盖物时，必须消除中心对准的误差，同时在轴彼此调节之间进行中心对准，然后将锥形销19铆接。此后，螺栓插入螺栓孔18中。

7. 发明专利

JPH09280010A GAS TURBINE, COMBINED CYCLE PLANT PROVIDED WITH THE GAS TURBINE, AND DRIVING METHOD THEREOF 失效
公开(公告)号：JPH09280010A
公开(公告)日：1997-10-28
申请号：JP8946796
申请日：1996-04-11
申请人： TOSHIBA CORP
发明人： NOMOTO HIDEO , OTOMO FUMIO
IPC分类号： F01K23/10 , F02C3/30 , F02C6/18 , F02C7/16 , F22B1/18
摘要： PROBLEM TO BE SOLVED: To improve cooling efficiency and thermal efficiency by cooling a turbine high temperature part of a gas turbine effectively and efficiently in all the operation regions from the start to rated operation of the gas turbine. SOLUTION: A gas turbine plant 1, a steam turbine plant 2, and an exhaust heat recovery boiler 3 are combined to constitute a combined cycle plant 30. The gas turbine plant 1 is provided with a turbine cooling section 35 which can cool a turbine high temperature part of a gas turbine 6, and the turbine cooling section 35 is provided with a cooling water transfer means 36 which guides water from a water supply side of the steam turbine plant 2 as a first cooling medium and a cooling steam transfer means 37 which guides steam from a steam side of the steam turbine plant 2 as a second cooling medium. Both transfer means 36, 37 are switched over selectively by a cooling medium change-over means 38 in accordance with an operation condition of the combined cycle plant 30.

8. 发明专利

JPH09256815A STEAM COOLING GAS TURBINE, STEAM COOLING COMBINED CYCLE PLANT USING THE GAS TURBINE, AND ITS OPERATING METHOD 失效
公开(公告)号：JPH09256815A
公开(公告)日：1997-09-30
申请号：JP6485896
申请日：1996-03-21
申请人： TOSHIBA CORP
发明人： NOMOTO HIDEO
IPC分类号： F01K23/10 , F02C3/30 , F02C7/18 , F02C7/28
摘要： PROBLEM TO BE SOLVED: To provide a steam cooling gas turbine in which the cooling efficiency is improved by using the steam as the cooling medium of a gas turbine, and the inside is efficiently shaft-sealed from the atmospheric pressure in the surrounding environment by a gland seal part of a gas turbine gland, a steam cooling combined cycle plant using the gas turbine, and its operating method. SOLUTION: A steam cooling combined cycle plant 20 comprises a gas turbine plant 21, an exhaust heat recovery boiler 22, and a steam turbine plant 23, and in the plant 20, a hot part of a gas turbine 27 is cooled with steam. The gas turbine 27 is provided with a turbine cooling part 47 to cool turbine parts of the hot part of the turbine with steam, a cooling steam feeding part 44 to feed the cooling steam to the turbine cooling part 47, and a gland seal part 43 to seal the cooling steam feeding part 44 from the atmospheric pressure in the surrounding environment.

9. 发明专利

JPH09236001A STEAM COOLING COMBINED CYCLE PLANT 失效
公开(公告)号：JPH09236001A
公开(公告)日：1997-09-09
申请号：JP4390296
申请日：1996-02-29
申请人： TOSHIBA CORP
发明人： NOMOTO HIDEO , OTOMO FUMIO
IPC分类号： F01K23/10 , F02C3/30 , F02C6/18 , F02C7/18 , F22B1/18
摘要： PROBLEM TO BE SOLVED: To supply steam for cooling to a gas turbine during starting operation sufficiently by constituting a combined cycle plant in a plurality of axial system train. SOLUTION: Steam for cooling is guided from the high pressure part 36b of a second steam turbine plant 31b into the second gas turbine 34b of a second gas turbine plant 30b, and steam for cooling is guided from the intermediate pressure part 37b of the second steam gas turbine plant 31b into the first gas turbine 34a of the first gas turbine plant 30a. Since steam flows into the high pressure part 36b and the intermediate pressure part 37b are ensured at all times, reduction of expansion is prevented in the high pressure part 36b and the intermediate pressure part 37b. It is thus possible to carry out stable operation without applying output fluctuation on each pressure part of the steam turbine plant during rated operation.

10. 发明专利

JPH09209713A STEAM COOLING COMBINED CYCLE PLANT 失效
公开(公告)号：JPH09209713A
公开(公告)日：1997-08-12
申请号：JP1915296
申请日：1996-02-05
申请人： TOSHIBA CORP
发明人： NOMOTO HIDEO
IPC分类号： F01K23/10 , F02C6/18 , F02C7/16
摘要： PROBLEM TO BE SOLVED: To feed dry air to a gas turbine vane so as to remove residual cooling steam and prevent water droplet from being generated when a gas turbine is stopped. SOLUTION: This plant is provided with a compressor 1, a combustor 2, a gas turbine system A with a gas turbine 3 and a generator, an exhaust heat recovery boiler 6 to generate steam by the introduction of exhaust emission from the gas turbine, and a steam turbine system B with a steam turbine which is driven by the steam generated in the exhaust heat recovery boiler and a generator. Also the extraction steam from the steam turbine system is led into the gas turbine so as to cool it. Then a dry air feed system D feeds drying air to the steam cooling section of the gas turbine when the plant is stopped instead of feeding steam so as to remove moisture accumulated in the steam cooling section.

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