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1. 发明专利

JPH02199300A MANUFACTURE OF TURBO TYPE IMPELLER WITH COVER 失效
公开(公告)号：JPH02199300A
公开(公告)日：1990-08-07
申请号：JP1708189
申请日：1989-01-26
申请人： KOBE STEEL LTD
发明人： SATO SADAO , NAKAYAMA YOSHIHIRO , KAWASHIMA IWAO
IPC分类号： F01D5/04 , F04D29/28
摘要： PURPOSE:To enable execution of firm jointing between a blade and a cover by a method wherein a cover is engaged externally of a vane formed with a radial flow vane part and an axial flow vane part, a ring is engaged with the outer periphery of the cover by not-go fitting, flanges are brought into contact with an assembly from both sides of the assembly, which is nipped therebetween by means of a stay bolts, and the materials of the stay bolt and the ring are properly selected to heat them. CONSTITUTION:A vane 3 is mounted at a given angle pitch to a disc 2, and the vane 3 has a radial flow vane part 4 and an axial flow vane part 5. An annular cover 6 is engaged externally of the outer peripheral part thereof to form an aassembly 7. A ring 8 is engaged externally of the outer periphery of the cover 6 by not-go fitting, flanges 9 are brought into contact with the assembly from both sides of the assembly 7 and are fastened by means of stay bolts 10. The assembly 7 is heated in a heating furnace togetheriwth the fastening jig and simultaneous diffused junction is made on the radial and axial vane parts 4 and 5. In this case, the materials of the ring 8 and the bolt 10 are selected to a substance having a low physical properties value, e.g. the coefficient of linear thermal expansion, at a diffused junction temperature and a high value in proof stress. This method makes jointing strength sufficient.

2. 发明专利

JPH08285395A DEVICE FOR LIQUEFYING HERIUM 失效
公开(公告)号：JPH08285395A
公开(公告)日：1996-11-01
申请号：JP8426295
申请日：1995-04-10
申请人： KOBE STEEL LTD
发明人： KAMIYAUCHI YOUICHI , KAWASHIMA IWAO , NAKAYAMA YOSHIHIRO
IPC分类号： F25B9/02 , F25B9/06 , F25J1/00 , F25J5/00
摘要： PURPOSE: To assure an operating state which is always kept in its most suitable condi tion in response to a circumstance of cooling load and to make a positive prevention of over-rotation of an expansion turbine by a method wherein a variable volume type low temperature expansion turbine is arranged at a more downstream side of a return bypass passage and there is provided a control device for adjusting a nozzle opening degree. CONSTITUTION: A device 1 for liquefying herium is constructed such that a main compressor 4 is arranged in a herium circulating passage L passing reciprocatably through a heat exchanger 2 and having a cooling load 3 as its flowing-out point and flowing-in point. A main turbine (a main expansion turbine) 5 is arranged in series with the bypass passage L3. In addition, a herium drawing passage L4 arranged at a downstream side of a high pressure supplying passage L2 is provided with a super critical herium turbine 6 of which nozzle opening degree can be changed. In turn, there are provided a thermometer 74 for sensing a herium temperature in the bypass passage L3 at the downstream side of a second main turbine 52 and a nozzle opening degree setting device 8 to which this temperature sensing signal is inputted. Then, a nozzle opening degree of a SHE turbine 6 is set in response to a temperature of herium detected by the thermometer 74.

3. 发明专利

JPH08121892A OPERATION CONTROLLING METHOD FOR TURBINE TYPE EXPANSION UNIT 失效
公开(公告)号：JPH08121892A
公开(公告)日：1996-05-17
申请号：JP26285594
申请日：1994-10-26
申请人： KOBE STEEL LTD
发明人： UETANIUCHI YOUICHI , ASAO MASATO , KAWASHIMA IWAO , SHINKAI KOICHI
IPC分类号： F25B9/06 , F25B9/02
摘要： PURPOSE: To rapidly precool while preventing the overload operations of turbine expansion units disposed in two-stage series. CONSTITUTION: The limit values of the pressures (intermediate stage pressure) of the intermediate parts of turbine type expansion units 11, 12 disposed in series are divided to a plurality of steps, raised and the operating pressures are gradually raised based on the limit values. At the initial time of precooling, the transfer timing of the step is set based on the timing in which the inlet temperature of the downstream side turbine expansion unit 12 becomes a predetermined temperature or lower. The transfer timing to at least one of the steps after the time point when the inlet temperature of the downstream side unit 12 is lowered from that of the upstream side unit 22 is set based on the timing in which at least the upstream side unit 11 becomes a predetermined temperature or lower.

4. 发明专利

JPH07166807A ROTATING MACHINE 失效
公开(公告)号：JPH07166807A
公开(公告)日：1995-06-27
申请号：JP31308593
申请日：1993-12-14
申请人： KOBE STEEL LTD
发明人： NAKAYAMA YOSHIHIRO , KAWASHIMA IWAO
IPC分类号： F01D25/16 , F02C7/06
摘要： PURPOSE:To provide a rotating machine which enables prevention of unstable oscillation and burning of a bearing by securing an optimum condition of a gap between the dynamic pressure gas bearings. CONSTITUTION:In a rotating machine, a rotary shaft for a turbine impeller 12 and a blower impeller 13 is supported by dynamic pressure journal pneumatic bearing 17 and a dynamic pressure thrust pneumatic bearing 18 arranged inside a bearing box 16 partitioned from outside, which impellers expand and compress process gas for feeding in an expansion space 14 and a compression space 15 partitioned from outside. A flow passage 1 for supplying the same kind of gas as the process gas into the bearing box 16 is connected to an exhaust flow passage 2 for exhausting gas from the inside of the bearing box.

5. 发明专利

JPH04187946A VARIABLE CAPACITY TYPE TURBINE EXPANDER 失效
公开(公告)号：JPH04187946A
公开(公告)日：1992-07-06
申请号：JP31991690
申请日：1990-11-21
申请人： JAPAN ATOMIC ENERGY RES INST , KOBE STEEL LTD
发明人： KATO TAKASHI , SUGIMOTO MAKOTO , KONO KATSUMI , KAMIYANAI YOUICHI , SATO SADAO , NAKAYAMA YOSHIHIRO , KAWASHIMA IWAO
IPC分类号： F01D9/00 , F25B9/06
摘要： PURPOSE:To reduce the amount of leakage to the rear side of a second sidewall for reducing the load on a driver for capacity adjustment by a method wherein the inner circumferential part of the second sidewall is extended in the axial direction of a turbine impeller to form an L-shaped axial section, and an intermediate pressure chamber is formed between the second sidewall and an annular side plate. CONSTITUTION:P represents the pressure in an intermediate pressure chamber 9, P1 the pressure at the inlet of an entrance flow path 8, and P2 the pressure at the outlet. The pressure P varies depending upon the sizes of gaps at the inner and outer circumferences of a second sidewall 3 and a gap at the inner circumference of a slot 6, however, a relationship P1>P>P2 is established. As the second sidewall 3 having an L-shaped axial section is provided to form an intermediate pressure chamber 9, a thrust F= A(P1-P) is exerted on the second sidewall 3, where A is a sectional area perpendicular to the axial direction. By adequately adjusting the gaps, P=1/2(P1+P2) is established. The inner circumference of the second sidewall 3 serves as a weir, the differential pressure across the second sidewall 3 becomes small, resulting in an reduction of gas leakage amount to the rear side of the second sidewall 3.

6. 发明专利

JP2006105533A Cooling device of superconductive coil 审中-公开
标题翻译：超导线圈冷却装置
公开(公告)号：JP2006105533A
公开(公告)日：2006-04-20
申请号：JP2004294896
申请日：2004-10-07
申请人： Kobe Steel Ltd , Kyushu Electric Power Co Inc , 九州電力株式会社 , 株式会社神戸製鋼所
发明人： HAYASHI HIDEMI , NAGABUCHI HISASHI , TERAZONO KANICHI , KAWASHIMA IWAO , MIURA SHINICHI , SASAKI OSAMU
IPC分类号： F25B9/02 , F25D3/10 , H01F6/04 , H01L39/04
摘要： PROBLEM TO BE SOLVED: To arrest or effectively delay sudden stoppage of a refrigerant compressor or opening of a safety valve, which is resulted from a pressure fluctuation involved by quenching in a superconductive coil. SOLUTION: A refrigerant discharged from the refrigerant compressor is cooled in a cooling box 16, supplied into the superconductive coil 12 within a cryostat 10 through a refrigerant supply passage 18, and then returned to the refrigerant compressor through a refrigerant return passage 20. In the cooling box 16 or in the cryostat 10, an upstream side pressure buffer 44 absorbing the pressure fluctuation within the refrigerant supply passage 18 by quenching in the coil 12 is provided to arrest or delay the sudden stoppage of the refrigerant compressor or opening of the safety valve 40 resulted from the pressure fluctuation. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：阻止或有效地延迟制冷剂压缩机的突然停止或安全阀的打开，这是由于在超导线圈中淬火引起的压力波动。解决方案：从制冷剂压缩机排出的制冷剂在冷却箱16中冷却，冷却箱16通过制冷剂供给通道18供给到低温恒温器10内的超导线圈12中，然后通过制冷剂返回通路20返回到制冷剂压缩机在冷却箱16或低温恒温器10中，设置有通过在线圈12中淬火而吸收制冷剂供给通路18内的压力波动的上游侧压力缓冲器44，以阻止或延迟制冷剂压缩机的突然停止安全阀40由于压力波动而产生。版权所有（C）2006，JPO＆NCIPI

7. 发明专利

JPH06341725A CONTROLLING METHOD FOR TURBINE TYPE EXPANSION MACHINE 失效
公开(公告)号：JPH06341725A
公开(公告)日：1994-12-13
申请号：JP13319793
申请日：1993-06-03
申请人： KOBE STEEL LTD
发明人： NAKAYAMA YOSHIHIRO , KAWASHIMA IWAO
IPC分类号： F25B9/06
摘要： PURPOSE:To obtain an operation control schedule being unequivocal for the whole capacity determining a number of revolution of a turbine, by regulating the opening of an inlet pressure control valve so that a difference between a calculated pressure ratio of detected input and output pressures and a set pressure ratio corresponding to a detected input temperature may be zero. CONSTITUTION:A line 6 for liquefaction and a return line 7 are connected between a turbine type expansion machine 1 and a plurality of heat exchangers 4 and 5, while an inlet pressure control valve 3 is provided for the line 6 for liquefaction. In this case, pressure detectors 11 and 12 are provided on the input and output sides of the expansion machine 1 respectively, while a temperature detector 13 is provided on the input side. Based on the result of each detection, the opening of the inlet pressure control valve 3 is regulated by a control device 14. In other words, the opening of the inlet pressure control valve 3 is regulated so that a difference between a calculated pressure ratio of a detected input pressure to a detected output pressure and a set pressure ratio corresponding to a detected input temperature may be zero. According to this constitution, an operation control schedule being unequivocal for the whole capacity determining a number of revolution of a turbine is obtained.

8. 发明专利

JPH0634217A CONTROLLING EQUIPMENT OF OPERATION OF TURBINE TYPE EXPANSION APPARATUS 失效
公开(公告)号：JPH0634217A
公开(公告)日：1994-02-08
申请号：JP19235192
申请日：1992-07-20
申请人： KOBE STEEL LTD
发明人： ASAO MASATO , KAWASHIMA IWAO , MATSUMOTO TETSURO , KAMIYANAI YOUICHI
IPC分类号： F25B9/02 , F25B9/06
摘要： PURPOSE:To ensure high energy efficiency and refrigerating performance while preventing reliably overload operations of both turbine type expansion apparatuses on high-temperature and low-temperature sides. CONSTITUTION:A turbine inlet valve 45 is provided at a position on the upstream side of a high-temperature turbine 41, and a low-temperature turbine 42 is constructed of a turbine type expansion apparatus of a variable capacity type. An inlet pressure of the high-temperature turbine 41 is detected by a high-temperature turbine inlet pressure controlling meter 46 and the opening of the turbine inlet valve 45 is controlled on the basis of a detected value of the meter. The inlet pressure of the low-temperature turbine 42 is detected by a low-temperature turbine inlet pressure controlling meter 47 and the capacity of the low-temperature turbine 42 is controlled on the basis of the detected value thereof.

9. 发明专利

JPH0626301A EXPANSION TURBINE 失效
公开(公告)号：JPH0626301A
公开(公告)日：1994-02-01
申请号：JP18093592
申请日：1992-07-08
申请人： KOBE STEEL LTD
发明人： NAKAYAMA YOSHIHIRO , KAWASHIMA IWAO
IPC分类号： F01D3/00 , F25B9/06 , F25B11/02
摘要： PURPOSE:To make a braking fan small in diameter and lightweight without generating the inflow of gas onto the turbine impeller side from a bearing disposition space so as to avoid unstable vibration caused by the centrifugal whirling of a rotary shaft at a journal gas bearing part and heighten the bending characteristic frequency of the rotary shaft. CONSTITUTION:A rotary shaft with a turbine impeller 11 fitted to one end and a braking fan 12 fitted to the other end is rotatably enclosed, together with the turbine impeller 11 and braking fan 12, into a casing 14 through a journal gas bearing 15 and a thrust gas bearing 17 to form an expansion turbine. In such an expansion turbine, a bearing disposition space 24 is communicated with a fan inlet 22.

10. 发明专利

JPH05118230A CAPACITY VARIABLE TYPE TURBINE EXPANDER 失效
公开(公告)号：JPH05118230A
公开(公告)日：1993-05-14
申请号：JP13929491
申请日：1991-06-11
申请人： JAPAN ATOMIC ENERGY RES INST , KOBE STEEL LTD
发明人： KATO TAKASHI , KONO KATSUMI , HIYAMA TADAO , KAMIYANAI YOUICHI , SATO SADAO , KAKIHARA KOKI , NAKAYAMA YOSHIHIRO , KAWASHIMA IWAO
IPC分类号： F02C9/20 , F25B11/02
摘要： PURPOSE:To conduct up and down movement of a rod smoothly, and yet to improve sealing performance at a seal part. CONSTITUTION:This device has a rotor 2 with an impeller for expanding liquid to take out adiabatic work, a nozzle part 3 for guiding the liquid to the impeller, a nozzle side plate 4 for changing flow passage sectional area of the nozzle part 3, and a rod for connecting the nozzle side plate 4 to a driving source 5 for driving this side plate 4. Furthermore, this rod is divided into a side plate side rod 6 and a drive source side rod 7 while an interlocking mechanism for interlocking these divided rods 6, 7 is arranged.

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