会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 2. 发明专利
    • Steam turbine installation and method for its modification
    • 蒸汽涡轮机安装及其修改方法
    • JP2006002696A
    • 2006-01-05
    • JP2004181338
    • 2004-06-18
    • Toshiba Corp株式会社東芝
    • YAMANAKA TETSUYAMURAKAMI TORU
    • F01K13/00F01D5/02F01D5/08F01D25/16
    • PROBLEM TO BE SOLVED: To provide a reliable steam turbine installation in which performance and output are improved, while minimizing the range of modification in the steam turbine installation now in use.
      SOLUTION: One of two turbines equipped in the steam turbine installation now in use is replaced with an advanced turbine designed on the latest technology, and the two turbines are integrated into a single structure. In this case, footings supporting the two turbines, the other not-replaced turbine, condensers, and incidental equipment and the like are also used without removal in the integrated structure. The rotor of the other not-replaced turbine is preserved for the use to transmit torque to a generator, etc.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:提供一种可靠的蒸汽轮机设备,其中性能和输出得到改善,同时使现在正在使用的蒸汽轮机设备的变化范围最小化。 解决方案:现在使用的汽轮机设备中配备的两台涡轮机中的一台被替换为采用最新技术设计的先进涡轮机,两台涡轮机集成在一个单一的结构中。 在这种情况下,也可以在一体化结构中使用不拆卸的支撑两台涡轮机的基座,另一个未更换的涡轮机,冷凝器和附带设备等。 另一个未更换的涡轮的转子被保留用于将扭矩传递到发电机等。版权所有:(C)2006,JPO&NCIPI
    • 4. 发明专利
    • INLET PIPE DEVICE FOR STEAM TURBINE
    • JPH07158408A
    • 1995-06-20
    • JP30797193
    • 1993-12-08
    • TOSHIBA CORP
    • MURAKAMI TORUKITAGUCHI NORIAKI
    • F01D25/26F01D25/28
    • PURPOSE:To uniform the temperature distribution of the dead-end hole part of an outer casing by forming an annular steam passage between the annular slant face of a steam connecting pipe and the annular slant face of a snap ring so as to lead steam, leaking from rings, rapidly to the inlet of the dead-end hole. CONSTITUTION:Inlet steam flowing in from a steam inlet pipe 3 installed at an outer casing 1 is led into an inner casing 2 through a steam connecting pipe 4. Plural rings 8 are installed at the end part of the steam connecting pipe 4 so as to serve to prevent steam in the steam inlet pipe 3 and steam connecting pipe 4 from leaking outside of the pipe. Steam filled between the outer and inner casings 1, 2 flows to a dead-end hole 9 existing at a joint part between the outer casing 1 and the steam inlet pipe 3. An annular steam passage 12 is formed between the steam connecting pipe 4 and the snap ring 8c of a ring group 8. In this annular steam passage 12, steam flows in the direction of going away from the dead-end hole 9. The generation of local thermal stress can be thus relieved.
    • 9. 发明专利
    • DAMAGE MONITORING METHOD FOR COMPRESSOR AND DEVICE THEREFOR
    • JPH11257240A
    • 1999-09-21
    • JP5832598
    • 1998-03-10
    • TOSHIBA CORP
    • OTSUKI YASUHIKOMURAKAMI TORU
    • F02C7/00F04B49/10F04D27/00
    • PROBLEM TO BE SOLVED: To find out a damage on a blade and the like in an early stage by calculating a compressor efficiency, calculating a reduced efficiency by a correction efficiency found out from a compressor inlet temperature in a rated condition and a correction efficiency found out from an inlet guide blade opening in the rated condition, and monitoring the reduced efficiency. SOLUTION: In an efficiency monitor of a compressor, a compressor efficiency ηreal is calculated from a compressor pressure ratio, a compressor delivery temperature, a compressor inlet temperature CTIM, and a specific heat ratio of an operating fluid. The compressor efficiency is reduced to a rated condition by ηconv =ηreal -ΔηCTIM-ΔηIGV ηconv is a reduced efficiency, ΔηCTIM is a correction efficiency by an IGV opening. In a monitor device, the ηconv reduced in the rated condition is monitored, and it is judged that a moving blade of the compressor or a part of a stationary blade is broken when the value is reduced more than a setting value. It is thus possible to find out a damage on a blade and the like of a compressor automatically and precisely.
    • 10. 发明专利
    • BLADE OF AXIAL TURBINE
    • JPH0491302A
    • 1992-03-24
    • JP20244490
    • 1990-08-01
    • TOSHIBA CORP
    • SUZUKI ATSUHIDEMURAKAMI TORU
    • F01D5/16F01D5/22
    • PURPOSE:To provide effects of vibration reduction and damping under all the operating-conditions to a blade, to prevent generation of large vibration of the blade, and to improve reliability of the blade by bringing contact surfaces of a snubber structure provided at the tip end and so on of the blade into contact with each other all the time under all the operating conditions. CONSTITUTION:A snubber structure of a blade 1 as the structure having effects of vibration reduction and damping is provided, in the state that the blade 1 is incorporated into a shaft 2, so that projections 3 at the tip ends of the adjoining blades 1 are brought into contact with each other during rotation. In this case, a snubber pitch 10 of the blade 1 is set larger than a geometric pitch acquired from a snubber diameter in assembly, that is, pi X (diameter of a snubber in assembly)/(total circumferential number of blades). And in assembly, the adjoining blades 1 are brought into contact with each other at first as shown by the solid line. Then, the snubbers are strongly brought into contact and the blades 1 are distorted so as to assemble them as shown by the dotted line. Also, the torsional direction is made opposite to the torsion returning direction of the blade 1 caused by the centrifugal force so as to maintain contact surface pressure constant regardless of the rotation.