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1. 发明专利

JPH0450403A WARMING METHOD FOR GOVERNING VALVE 失效
公开(公告)号：JPH0450403A
公开(公告)日：1992-02-19
申请号：JP16188890
申请日：1990-06-20
申请人： TOSHIBA CORP
发明人： SHIOMI HAJIME , FURUI TAKESHI , NARUTOMI TAKESHI , UCHIDA NORIHIRO
IPC分类号： F01D19/00
摘要： PURPOSE:To perform warming in a short time without causing excessive thermal stress in the casing of a governing valve by closing a main steam stop valve or the small valve of the main steam stop valve which supplies and/or suspend the feed of warming steam, at a specified time. CONSTITUTION:When the difference in metallic temperature between the inner and outer surfaces of a governing valve is less than a threshold value A, an open command signal 27 for the main steam stop valve is generated. When the difference in temperature between the inner and outer surfaces of the governing valve is increased beyond a threshold value B, a closing command signal 28 for the steam stop valve is outputted, so that the main steam stop valve is fully closed. Since the outer surface of a casing goes gradually on increasing in temperature through heat conduction, the difference in temperature between the inner and outer surfaces becomes smaller. Feeding worming steam is kept on until the difference in temperature between the inner and outer surfaces of the governing valve reach a specified valve. This therefore prevents the casing of the governing valve from being thermally stressed excessively, thereby making it possible to minimize warming time.

2. 发明专利

JPS62182403A THERMAL STRESS MONITORING METHOD FOR TURBINE ROTOR 失效
公开(公告)号：JPS62182403A
公开(公告)日：1987-08-10
申请号：JP2299386
申请日：1986-02-06
申请人： TOSHIBA CORP
发明人： MOMOEDA KATSURO , NARUTOMI TAKESHI
IPC分类号： F01D5/00 , F01D25/00
摘要： PURPOSE:To perform life control over a rotor so accurately, by setting a rotor surface temperature in a reheating part from the measured value of an inner surface metal temperature in a high pressure first stage after-steam chest, and performing calibration by a reheat steam temperature at need. CONSTITUTION:A thermocouple 20 is installed in an internal casing 11 corresponding to a high pressure stage after-steam chest 18. Another thermocouple 28 is installed in an external casing 10 of a reheating part 13. On the basis of the measured value of the thermocouple 20, surface temperature distribution of a reheating part rotor is found. Calibration takes place according to the measured value of the thermocouple 28. With this constitution, in due consideration of the influence of leaked steam out of an intermediate gland part 30, thermal stress of the rotor can be monitored so that life control is accurately performable.

3. 发明专利

JPS5726207A Rotary blade for steam turbine 失效
标题翻译：蒸汽涡轮转子叶片
公开(公告)号：JPS5726207A
公开(公告)日：1982-02-12
申请号：JP9984380
申请日：1980-07-23
申请人： Toshiba Corp
发明人： FUJII MICHINOBU , NARUTOMI TAKESHI
IPC分类号： F01D5/20
摘要： PURPOSE: To reduce steam leakage so as to improve the efficiency of a turbine, by arranging pieces of a shroud plate cut in halves in butt joint form on the top edge of a plural number of rotary blade implanted along the periphery of a rotor and also allowing fins to protrude from the both sides of the pieces of the shroud plate cut in halves.
CONSTITUTION: A steam turbine is provided with a turbine rotor 1 including impellers 2 as its integrated portions, where a plural number of rotary blade 10 are implanted on each impeller 2 and also provided with a nozzle plate 21 which is installed upstream in relation to the above rotor 1 and enclosed with its own somma ring 20, 22 in the nozzle space, and whole nozzle plate unit 21 is surrounded by a casing 50. Then, pieces 11a, 11b of a shroud plate cut in halves are set on the top edge of a rotary blade 10 and fixed to it by caulking tenons 12a, 12b integrated to the rotary blade 10. Fins 30a, 30b and 31a, 31b are formed on each of shroud plate 11a, 11b respectively, and tip fing 24a, 24b are formed on somma ring 22 of the nozzle so that they may be positioned at the centers of fins 30a, 30b and 31a, 31b respectively.
COPYRIGHT: (C)1982,JPO&Japio
摘要翻译：目的：为了减少蒸汽泄漏，从而提高涡轮机的效率，通过在沿转子周边植入的多个旋转叶片的顶部边缘上布置以对接形式切成两半的挡板的部件，允许翅片从被切割成两半的护罩板的两侧突出。构成：汽轮机设置有涡轮转子1，该涡轮机转子1包括作为其整体部分的叶轮2，其中多个旋转叶片10植入在每个叶轮2上，并且还设置有喷嘴板21，喷嘴板21相对于在转子1上方并且在其喷嘴空间中由其自身的湿度环20,22包围，并且整个喷嘴板单元21被壳体50包围。然后，切成两半的罩板的片11a，11b设置在顶部边缘的旋转叶片10，并且通过铆接整体到旋转叶片10上的榫舌12a，12b固定在其上。鳍片30a，30b和31a，31b分别形成在每个护罩板11a，11b上，并且形成尖端指尖24a，24b 在喷嘴的凹凸环22上，使得它们可以分别位于翅片30a，30b和31a，31b的中心。

4. 发明专利

JPH05312054A 失效
公开(公告)号：JPH05312054A
公开(公告)日：1993-11-22
申请号：JP11657892
申请日：1992-05-11
申请人： TOSHIBA CORP
发明人： SHIBAGAKI TORU , KUROKI KEIICHI , FUJII MICHINOBU , NARUTOMI TAKESHI
IPC分类号： F01K13/00 , F01K23/10 , F02C6/18
摘要： PURPOSE:To improve the extent of efficiency in a steam turbine as well as to promote the compactification of a building by setting up a high pressure part or high, medium pressure part of the steam turbine in the first shaft and a low pressure steam turbine in the second shaft downward, respectively. CONSTITUTION:A gas turbine 1, a compressor 2, and a high, medium pressure steam turbine 3 plus a generator 5 are all connected to an A shaft through a rigid coupling. Likewise, those of gas turbine 1, compressor 2, low pressure steam turbine 4 and generator 5 are all connected to a B shaft through the rigid coupling. As for a steam cycle, exhaust steam out of the low pressure turbine 4 is condensed by a condenser 6, and subjected to heat exchanging by each exhaust heat recovery boiler 7 utilizing exhaust heat of the gas turbine 1 of each shaft, it turns to high pressure and high temperature steam. Each steam to be produced out of these two boilers 7 is converged into one and fed to the high-medium pressure turbine 3. Exhaust steam out of a medium pressure part of this high-medium pressure turbine 3 is fed into the low pressure turbine 4 by a cylinder connecting pipe 8. Thus, the extent of efficiency in the steam turbine is improvable.

5. 发明专利

JPH04262005A MAIN STEAM CONTROL VALVE CHEST WARMING METHOD 失效
公开(公告)号：JPH04262005A
公开(公告)日：1992-09-17
申请号：JP2244291
申请日：1991-02-16
申请人： TOSHIBA CORP
发明人： NARUTOMI TAKESHI , SHIOMI HAJIME , FURUI TAKESHI , UCHIDA NORIHIRO
IPC分类号： F01D17/24 , F01D25/10
摘要： PURPOSE:To shorten the warming time to the min. value without applying an excessive thermal stress to a main steam control valve chest, in the warming time of the steam control valve chest. CONSTITUTION:The chest of a main staem control valve 4 is warmed up by alternately opening/closing a main steam stop valve 3 for the supply/stop of the steam for warning, or its sub-valve and a main steam stop valve part sheet rear drain part 10 for drain discharge, and when the control valve chest metal temperature variation rate becomes larger than the first set value, the main steam stop valve or the sub-valve is closed, while if the temperature variation rate becomes smaller than the second set value smaller than the first set value, a steam drain valve is opened.

6. 发明专利

JPS6170107A Turning device 失效
标题翻译：滚动装置
公开(公告)号：JPS6170107A
公开(公告)日：1986-04-10
申请号：JP19178284
申请日：1984-09-14
申请人： Toshiba Corp
发明人： NARUTOMI TAKESHI
IPC分类号： F01D25/34
CPC分类号： F01D25/34
摘要： PURPOSE:To realize continuation of turning operation in case of loss of an electric power supply by providing, through clutches, an air motor on the output shaft of an a.c. motor for driving a turbine rotor. CONSTITUTION:An air motor 5 is provided, through clutches 3, 4, on the output shaft 2 of a.c. motor 1 for driving a turbine rotor. this enables continuation of turning operation even if the a.c. motor 1 is stopped due to loss of an a.c. electric power supply.
摘要翻译：目的：通过离合器将空气马达提供在一个交流输出轴上，实现电力供应丢失的情况下继续转动。用于驱动涡轮转子的电机。构成：通过离合器3,4提供空气马达5，输出轴2上有一个交流电。用于驱动涡轮转子的电机1。这使得即使交流电也能继续转动操作。电机1由于a.c.的损失而停止。电源。

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