专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JPS6119904A Moving vane 失效
标题翻译：移动风扇
公开(公告)号：JPS6119904A
公开(公告)日：1986-01-28
申请号：JP14054284
申请日：1984-07-09
申请人： Hitachi Ltd
发明人： TORITANI HAJIME , KANEKO RIYOUICHI
IPC分类号： F01D5/22
CPC分类号： F01D5/3046 , F01D5/225
摘要： PURPOSE:To reduce tensile stress of a shroud cover, by a method wherein a material of a shroud cover coupled to the forward of a moving vane has the coefficient of thermal expansion higher than that of the disc material of a rotor and a moving vane material. CONSTITUTION:Moving vanes 4 are located to the outer peripheral part of a disc 1 of a rotor, a tenon 7 at the forward end of the moving vane 4 is inserted into a hole in a shroud cover 8 to throttle it, and this causes coupling of the shroud cover with the moving vane 4. The shroud cover 8 is formed by a material having coefficient of thermal expansion higher than that of the material of the disc 1 and the moving vane 4. This causes thermal elongation of the shroud cover 8 to be increased over that of the disc 1, resulting in the possibility to reduce tensile stress of the shroud cover 8.
摘要翻译：目的：为了减少护罩盖的拉伸应力，通过一种方法，其中连接到移动叶片前方的护罩罩的材料的热膨胀系数高于转子的盘材料的热膨胀系数，以及移动的叶片材料。构成：移动叶片4位于转子的盘1的外周部，移动叶片4的前端的榫口7被插入到护罩罩8的孔内，从而对其进行节流，护罩盖8由热膨胀系数高于盘1和活动叶片4的材料的材料形成。这导致罩盖8的热伸长率比盘1的面积增加，导致降低护罩罩8的拉伸应力的可能性。

2. 发明专利

JPS60156911A STARTING METHOD OF TURBINE WITH SHRUNK ROTOR AND DEVICE THEREOF 失效
公开(公告)号：JPS60156911A
公开(公告)日：1985-08-17
申请号：JP1135684
申请日：1984-01-24
申请人： HITACHI LTD
发明人： SHIBASHITA NAOAKI , TORITANI HAJIME , SHIMOMURA JIYUNSHI , URUSHIYA HARUO , KANEKO RIYOUICHI
IPC分类号： F01D5/06 , F01D19/02 , F01D25/10 , F01K9/02
摘要： PURPOSE:To check the development of a crack further, by making a turbine into being speeded up from its turning state after rising rotor metal temperature up to the specified one in time of starting the turbine having the shrunk rotor which shrinks a disc to a shaft. CONSTITUTION:A temperature sensor 100 detecting rotor metal temperature is installed in a low pressure turbine 8 having a shrunk rotor which shrinks a disc to a shaft. A controller 101 receives a signal out of the sensor 100 and opens a steam control valve 3, commanding the speed-up of the turbine when the rotor temperature reaches to the specified value.

3. 发明专利

JPS557936A STAGE STRUCTURE OF AXIALLFLOW TURBINE 失效
公开(公告)号：JPS557936A
公开(公告)日：1980-01-21
申请号：JP7977078
申请日：1978-07-03
申请人： HITACHI LTD
发明人： KANEKO RIYOUICHI
IPC分类号： F01D17/18 , F01D1/04 , F01D9/02 , F01D17/12 , F01D25/24
摘要： PURPOSE:To reduce pressure loss by providing a partition unit in a gap between stages of a turbine for regulating the operating fluid in the gap axially and dividing its axial flow into several passage. CONSTITUTION:Around the steam entrance of a steam turbine, turbine blades 13, 16, and 18 in the first, the second, and the third stage are provided to receive steams injected from the first, the second, and the third stage nozzle 12, 15, and 17 given inside a casing 40 for giving a rotary power to a rotor 19, while a stage gap 14 is provided between the first and the second nozzle 12 and 15. Here, in the stage gap 14 between the first and the second stage, a partition unit 50 composed of an arc-shaped outside and the same outside part 22 and 24 with L-shaped section to regulate the steam flow axially and two side partition parts 25 and 26 firm fixed between both ends of above partition parts to regulate the steam flow axially, is provided for attaining the expected purpose.

4. 发明专利

JPS53100338A FORCED LUBRICATION CHAFING BEARING 失效
公开(公告)号：JPS53100338A
公开(公告)日：1978-09-01
申请号：JP1493777
申请日：1977-02-16
申请人： HITACHI LTD
发明人： INOUE TOMOAKI , KANEKO RIYOUICHI
IPC分类号： F16C33/10 , F16C33/00
摘要： PURPOSE:To provide sufficient effects to cease instable vibration and cool a forced lubrication chafing bearing of a horizontal shaft type ideal for a large-size high speed rotary machine.

5. 发明专利

JPS52156255A VIBRATION DAMPING BEARING 失效
公开(公告)号：JPS52156255A
公开(公告)日：1977-12-26
申请号：JP7220776
申请日：1976-06-21
申请人： HITACHI LTD
发明人： INOUE TOMOAKI , KANEKO RIYOUICHI
IPC分类号： F16C32/06 , F16C33/00 , F16C33/10
摘要： PURPOSE:To increase vibration damping with a simple structure by establishing an oil film forming groove on both ends of the axial direction of a bearing and communicating with an oil pressure device.

6. 发明专利

JPS614804A STEAM TURBINE 失效
公开(公告)号：JPS614804A
公开(公告)日：1986-01-10
申请号：JP12526584
申请日：1984-06-20
申请人： HITACHI LTD
发明人： TORITANI HAJIME , KANEKO RIYOUICHI
IPC分类号： F01D5/02 , F01D9/06 , F01D11/00 , F01D25/24 , F01D25/26
摘要： PURPOSE:To enable a decrease in leak of steam, by a method wherein, in a turbine which is provided with an inner and an outer casing and a cooling space formed between the outer casing and a steam inlet pipe, a rotor is formed of a material having the coefficient of thermal expansion lower than that of the outer casing. CONSTITUTION:In a high intermediate pressure turbine, high temperature main steam 8 from a boiler is guided in the turbine through a main steam pipe 7 and is fed in an inner casing 5 through a steam inlet pipe 19 and a nozzle box 4, and this causes rotation of a rotor 1 having a number of blades 2. After exhaust steam 9 is reheated in the boiler, the steam is introduced to a reheat pipe 11, and simultaneously, a part of the exhaust steam 9 is caused to flow in a gap between an outer casing 6 and an expansion 19 to cool the outer casing 6. In this case, a high temperature part, such as the rotor 1, the inner casing 5, is formed by a material having the coefficient of thermal expansion lower than that of the outer casing 6, and this reduces a difference in a thermal elongation between a rotary part and a rest part.

7. 发明专利

JPS6022004A SEAL STRUCTURE OF INLET STEAM PIPE FOR STEAM TURBINE 失效
公开(公告)号：JPS6022004A
公开(公告)日：1985-02-04
申请号：JP12796583
申请日：1983-07-15
申请人： HITACHI LTD
发明人： UENISHI AKIRA , MIYATA HIROSHI , TSUBOUCHI KUNIYOSHI , KANEKO RIYOUICHI
IPC分类号： F01D9/06 , F01D11/00
摘要： PURPOSE:To facilitate a disassembly/assembly, while at the same time improving a sealing effect, by arranging such that a conduit attached to a nozzle box is engaged closely to a main steam pipe upon its diameter being resiliently expanded under a main steam pressure inside the conduit. CONSTITUTION:A main steam pipe 2 is detachably inserted by a main steam pipe 2 introducing a main steam 1 generated by a boiler and a conduit 3 is engaged with a nozzle box 4 for connection therewith. The inserting side end of conduit 3 is formed in a double cylindrical shape. The main steam 1 flows into a space 18 formed through the cylindrical portion and consequently has its pressure elevated. An external space 16 formed by a flanged portion projected from the rear portion of double cylindrical portion is filled with a part of turbine exhaust 13 for a subsequential pressure drop. A pressure difference between two spaces is thus used to resiliently deform an outer tubular portion 19 of double cylindrical portion for a resultant expansion of diameter. The tubular portion 19 is thus pressed against the inner wall of main steam pipe 2, and thereby preventing the leakage of main steam 1 to the space 16.

8. 发明专利

JPS6017607A REHEATER 失效
公开(公告)号：JPS6017607A
公开(公告)日：1985-01-29
申请号：JP12334383
申请日：1983-07-08
申请人： HITACHI LTD
发明人： TSUJI KUNIO , KANEKO RIYOUICHI , NAKAMURA SHIYOUZOU
IPC分类号： F01K7/24 , F01K7/22 , F22D11/00 , F22G1/00 , F22G3/00 , G21D1/02 , G21D5/06 , G21D5/08

9. 发明专利

JPS59215902A Shrink fitting type rotor 失效
标题翻译：收缩式接头类型转子
公开(公告)号：JPS59215902A
公开(公告)日：1984-12-05
申请号：JP8914883
申请日：1983-05-23
申请人： Hitachi Ltd
发明人： SHIMOMURA JIYUNSHI , ISA HITOSHI , KANEKO RIYOUICHI , URUSHIYA HARUO
IPC分类号： F01D5/02
CPC分类号： F01D5/025
摘要： PURPOSE:To prolong the remaining life of a shrink fitting type rotor and to shorten a required repairing time by removing a more outside part from an arbitrary position of the outer peripheral side than the outer peripheral side tip part of a crack when the crack is produced on an inner diameter side bottom part of a shrink fitting disc. CONSTITUTION:In a shrink fitting type rotor used for a steam turbine for nuclear power, etc., when any crack 15 is produced in an inner diameter side bottom part of a shrink fitting disc 17, e.g., in a key groove 14, a disc 9 is cut at a position on the more outer peripheral side than the tip on the outer peripheral side of the crack 15, namely, at the interface between a disc web part 16 and a disc hub part 17 to remove the disc web part 16 and a bucket 10. For a cutting method, for example, a melting method is utilized. Hereby, it is made possible to prolong the remaining life of the shrink fitting type rotor and to perform a rotor balancing adjustment after cutting and removing the disc 9 in a short period of time.
摘要翻译：目的：延长收缩配合型转子的剩余寿命，并且通过从产生裂纹的裂纹的外周侧的外周侧的任意位置除去更多的外侧部分来缩短所需的修理时间在收缩配合盘的内径侧底部。构成：在用于核能等的汽轮机的收缩式转子中，当在收缩配合盘17的内径侧底部（例如，在键槽14中）产生任何裂纹15时，将盘 9在比裂纹15的外周侧的尖端更靠外周侧的位置处切割，即，在盘腹部分16和盘毂部17之间的界面处切割，以移除盘腹部分16和铲斗10.对于切割方法，例如，使用熔化方法。因此，可以延长收缩配合型转子的剩余寿命，并且可以在短时间内切割和拆卸盘9之后执行转子平衡调节。

10. 发明专利

JPS59134307A Steam turbine plant 失效
标题翻译：蒸汽涡轮机厂
公开(公告)号：JPS59134307A
公开(公告)日：1984-08-02
申请号：JP731183
申请日：1983-01-21
申请人： Hitachi Ltd
发明人： SANKAI HARUO , TSUBOUCHI KUNIYOSHI , KANEKO RIYOUICHI
IPC分类号： F01K7/16 , F01K7/22 , F01K13/00 , F01K17/04
CPC分类号： F01K13/006
摘要： PURPOSE:To prevent the occurrence of excessive thermal stress against machinery and equipment available as well as to aim at improvements in heat recovery, by leading high pressure steam into a vortex tube device, then cooling a turbine with low temperature steam and driving the turbine or performing its feed water heating with the high pressure steam. CONSTITUTION:A steam turbine plant consists of a boiler 1, steam turbines 2-5, a condenser 7 and a feed water system. The partial steam produced in the boiler 1 is led into a vortex tube device 22 through which separation into high pressure steam and low temperature steam takes place. Heat recovery also takes place in a way of interconnecting high and pressure steam 25 to an exhaust system 15 of a superhigh pressure turbine 2. Likewise, high and low pressure steam 23 is interconnected to a cooling system of the superhigh pressure turbine 2. In this manner, not only the occurrence of excessive thermal stress against machinery and equipment available can be prevented but also heat recovery from the steam that is used for cooling can be brought about.
摘要翻译：目的：为了防止对可用的机械和设备产生过大的热应力，并且旨在改进热回收，通过将高压蒸汽引入涡流管装置中，然后用低温蒸汽冷却涡轮并驱动涡轮或用高压蒸汽进行给水加热。构成：蒸汽轮机设备包括锅炉1，蒸汽轮机2-5，冷凝器7和给水系统。在锅炉1中产生的部分蒸汽被引入涡流管装置22中，通过该涡流管装置分离成高压蒸汽和低温蒸汽。热回收还以将高压和高压蒸汽25与超高压涡轮2的排气系统15相互连接的方式进行。同样，高压和低压蒸汽23与超高压涡轮机2的冷却系统相互连接。在此不仅可以防止对机械设备产生过大的热应力，还可以防止从用于冷却的蒸汽中回收热量。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式