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1. 发明专利

JP2002030388A HEAT RESISTING STEEL FOR FAST BREEDER 失效
公开(公告)号：JP2002030388A
公开(公告)日：2002-01-31
申请号：JP2000208394
申请日：2000-07-10
申请人： HITACHI LTD , HITACHI ENG CO LTD , HITACHI KYOWA ENG CO LTD
发明人： DOI HIROYUKI , FUKUI HIROSHI , SHIGA MASAO , HIRAGA MAKOTO , KASHIWAKURA JUN , SAWADA SHUSAKU , SUKEGAWA MASAYUKI , MORITA HIROSHI
IPC分类号： G21C1/02 , C22C38/00 , C22C38/48 , C22C38/54 , G21C5/00 , G21C13/08
摘要： PROBLEM TO BE SOLVED: To provide heat resisting steel for fast breeder which has excellent high-temperature strength and further various excellent characteristics against high-temperature Na. SOLUTION: The heat resisting steel for fast breeder contains, by weight, 0.05-0.20% C,

2. 发明专利

JP2013087712A Turbine blade, turbine rotor using the same and steam turbine 有权
标题翻译：涡轮叶片，使用相同的涡轮转子和蒸汽涡轮
公开(公告)号：JP2013087712A
公开(公告)日：2013-05-13
申请号：JP2011230259
申请日：2011-10-20
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： ARAI MASAHIKO , DOI HIROYUKI , YODA HIDEO , TANAKA KATSUMI
IPC分类号： F01D5/28 , F01D5/06 , F01D25/00
CPC分类号： F01D5/288 , B23K15/0006 , B23K15/0093 , B23K2201/001 , F01D5/28 , F05D2230/233 , F05D2300/11 , F05D2300/17
摘要： PROBLEM TO BE SOLVED: To provide a turbine blade having superior reliability of a corrosion shield plate junction, and to provide a turbine rotor using the same and a steam turbine.SOLUTION: A turbine blade is characterized by fixing an erosion shield plate comprising a Co-base alloy to a front edge of a distal end of a turbine long blade comprising an iron-base alloy via a shim comprising an Ni-Fe alloy through one path of electron beam welding. In the case of fixture through electron beam welding, preferably, projections thicker than the turbine blade and a shield part are provided in a welding groove part and the shim having the thickness almost equal to the projections is used.
摘要翻译：要解决的问题：提供一种具有优异的防腐蚀板结的可靠性的涡轮叶片，并提供使用该叶片的涡轮转子和蒸汽轮机。解决方案：涡轮叶片的特征在于，通过包括Ni-Fe合金的垫片将包括Co基合金的侵蚀屏蔽板固定到包括铁基合金的涡轮长叶片的远端的前边缘通过电子束焊接的一条路径。在通过电子束焊接固定的情况下，优选地，使用比涡轮叶片更厚的突起和屏蔽部分，并且使用具有几乎等于突起的厚度的垫片。版权所有（C）2013，JPO＆INPIT

3. 发明专利

JP2012077667A Rotor shaft for steam turbine, and steam turbine and steam turbine power generation plant, using shaft 有权
标题翻译：蒸汽涡轮转子轴和蒸汽涡轮机和蒸汽涡轮发电厂，使用轴
公开(公告)号：JP2012077667A
公开(公告)日：2012-04-19
申请号：JP2010222577
申请日：2010-09-30
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： ARAI MASAHIKO , DOI HIROYUKI , FUJITA TOSHIO
IPC分类号： F01D5/06 , B23K35/30 , C22C38/00 , C22C38/52 , F01D15/10 , F01D25/00 , F01K7/22
摘要： PROBLEM TO BE SOLVED: To provide a steam turbine power generation plant having superior performance of high temperature and long time side strength in a specified 600°C or more temperature and 50,000 hours or longer side.SOLUTION: The rotor shaft is used for a high pressure turbine 110, a middle pressure turbine 120, and the steam turbine power generation plant 100. The rotor shaft is constituted of a martensite steel including in mass C:0.06-0.13%, Si: 0.15% or less, Mn:0.1-1.0%, Ni:0.005-0.1%, Cr:8.5-10.0%, Mo:0.05-0.50%, W:1.0-3.0%, V:0.05-0.30%, Nb:0.02-0.10%, Co:0.5-2.5%, N:0.005-0.035%, B:0.001-0.030%, and Al:0.0005-0.006%, and consisting of 0.3-0.9% (5×Ni+Mo), 5-20.5% (100×C+Cr), and the remnant of Fe and inevitable impurities.
摘要翻译：要解决的问题：提供一种在指定的600℃或更高的温度和50,000小时或更长的一侧具有优异的高温和长时间强度性能的蒸汽轮机发电厂。解决方案：转子轴用于高压涡轮机110，中压涡轮机120和蒸汽轮机发电设备100.转子轴由马氏体钢组成，质量C：0.06-0.13％，Si：0.15％以下，Mn：0.1〜1.0％，Ni：0.005〜0.1％，Cr：8.5〜10.0％，Mo：0.05〜0.50％，W：1.0〜3.0％，V：0.05〜0.30％ Nb：0.02〜0.10％，Co：0.5〜2.5％，N：0.005-0.035％，B：0.001-0.030％，Al：0.0005〜0.006％，0.3-0.9％（5×Ni + Mo），5-20.5％（100×C + Cr），残留的Fe和不可避免的杂质。版权所有（C）2012，JPO＆INPIT

4. 发明专利

JP2011150886A Water-recycling type fuel cell system 有权
标题翻译：水循环型燃料电池系统
公开(公告)号：JP2011150886A
公开(公告)日：2011-08-04
申请号：JP2010011038
申请日：2010-01-21
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： DOI HIROYUKI , MIITSU TAKESHI , OGURA HIROYOSHI , FUJITA AKIRA , SATO KOICHI , HOSONO HIROKI
IPC分类号： H01M8/06 , H01M8/04
CPC分类号： Y02E60/50
摘要： PROBLEM TO BE SOLVED: To provide a compact water-recycling type fuel cell system with a low center of gravity which is continuously operated even when any water from the outside is not supplied.
SOLUTION: The water-recycling type fuel cell system includes a fuel tank for storing liquid fuel, a stack which generates the power by executing the chemical reaction of the liquid fuel with oxygen, and discharges steam generated through the chemical reaction and the liquid fuel, a heat exchanger for executing the heat exchange by separating the steam into water and air, a first piping unit for feeding the liquid fuel discharged from the fuel tank to the stack, a second piping unit which feeds the steam discharged from the stack to the heat exchanger, and collects condensed water generated in the steam feeding process to the fuel tank, a third piping unit for feeding the liquid fuel discharged from the stack to the fuel tank, a fourth piping unit for feeding water separated by the heat exchanger to the fuel tank from the heat exchanger, and a controller which adjusts the liquid fuel to the predetermined concentration via the first, second, third and fourth piping units, and circulates the liquid fuel between the fuel tank, the stack and the heat exchanger.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种重心低的紧凑型水循环型燃料电池系统，即使在没有供应来自外部的水的情况下也能连续运转。解决方案：水循环型燃料电池系统包括用于储存液体燃料的燃料箱，通过执行液体燃料与氧的化学反应产生动力的堆叠，并且排出通过化学反应产生的蒸汽和液体燃料，用于通过将蒸汽分离成水和空气来执行热交换的热交换器，用于将从燃料箱排出的液体燃料供给到堆的第一管道单元，将从堆叠排出的蒸汽进给的第二管道单元将所述蒸汽供给工序中产生的冷凝水收集到所述燃料箱，将从所述堆排出的液体燃料供给到所述燃料箱的第三配管单元，将由所述热交换器分离出的水供给的第四配管单元，从所述热交换器到所述燃料箱的控制器，以及经由所述第一，第二，第三和第四管道单元将所述液体燃料调节到预定浓度的控制器，并且循环在燃料箱，堆和热交换器之间的液体燃料。版权所有（C）2011，JPO＆INPIT

5. 发明专利

JP2011052308A Ni-BASED FORGING ALLOY 有权
标题翻译：镍基锻造合金
公开(公告)号：JP2011052308A
公开(公告)日：2011-03-17
申请号：JP2009204557
申请日：2009-09-04
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SATO JUN , KONNO SHINYA , DOI HIROYUKI
IPC分类号： C22C19/05 , F01D5/06 , F01D5/28 , F01D25/00
CPC分类号： C22C19/055
摘要： PROBLEM TO BE SOLVED: To provide an Ni-based forging alloy which attains compatibility between high temperature strength and hot forgeability and segregation is hardly caused to have excellent large-sized steel producibility, and to provide a forged component for a steam turbine plant using the same.
SOLUTION: The Ni-based alloy has a composition comprising, by mass, 0.001 to 0.1% C, 12 to 23% Cr, 15 to 25% Co, 3.5 to 5.0% Al, 4 to 12% Mo and 0.1 to 7.0% W, in which the total content of Ti, Ta and Nb is controlled to ≤0.5 mass%, and a parameter Ps expressed by formula (1) is 0.6 to 1.6.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：待解决的问题：提供一种Ni系锻造合金，其在高温强度与热锻性之间达到相容性并且偏析几乎不具有优异的大型钢生产能力，并提供用于汽轮机的锻造部件植物使用相同。解决方案：Ni基合金的组成为：以质量计含有0.001至0.1％的C，12至23％的Cr，15至25％的Co，3.5至5.0％的Al，4至12％的Mo和0.1至 7.0％，其中Ti，Ta和Nb的总含量控制在≤0.5质量％，由式（1）表示的参数Ps为0.6〜1.6。版权所有（C）2011，JPO＆INPIT

6. 发明专利

JP2011052303A Ni-BASED CASTING ALLOY AND TURBINE CASING 有权
标题翻译：镍基铸造合金和涡轮机壳
公开(公告)号：JP2011052303A
公开(公告)日：2011-03-17
申请号：JP2009204246
申请日：2009-09-04
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SATO JUN , KONNO SHINYA , DOI HIROYUKI
IPC分类号： C22C19/05 , B22D21/00 , C22F1/00 , C22F1/10 , F01D25/00 , F01D25/24
CPC分类号： C22C19/051 , C22C19/055 , C22C19/056 , C22F1/10
摘要： PROBLEM TO BE SOLVED: To provide an Ni-based casting alloy producible by an inexpensive casting process similar to the conventional ferritic heat resistant steel and having high strength by a γ' phase precipitation.
SOLUTION: The Ni-based casting alloy contains, by mass, C: 0.01 to 0.2, Si: 0.5 to 4.0, Cr: 14 to 22, Mo+W: 4.0 to 10, B: 0.001 to 0.02, the balance being Ni and incidental impurities, wherein, by adding Si instead of Al and Ti, problems caused by oxidation upon casting does not occur, and an Ni
3 Si phase is precipitated at a service temperature to obtain excellent high temperature strength.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种通过类似于传统的铁素体耐热钢的廉价铸造工艺生产的Ni基铸造合金，并通过γ'相析出具有高强度。解决方案：Ni基铸造合金以质量计含有C：0.01〜0.2，Si：0.5〜4.0，Cr：14〜22，Mo + W：4.0〜10，B：0.001〜0.02，余量是Ni和偶然杂质，其中，通过加入Si代替Al和Ti，不会发生由于铸造时的氧化引起的问题，并且在使用温度下使Ni 3 Si相析出以获得优异的高温度强度。版权所有（C）2011，JPO＆INPIT

7. 发明专利

JP2011007153A Metal seal material with high reliability for turbines 有权
标题翻译：金属密封材料具有高可靠性的涡轮机
公开(公告)号：JP2011007153A
公开(公告)日：2011-01-13
申请号：JP2009154205
申请日：2009-06-29
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KOJIMA YOSHIYUKI , ARIKAWA HIDEYUKI , MEHATA TERU , DOI HIROYUKI , TORITANI HAJIME , NARITA KENJIRO
IPC分类号： F01D11/02 , F01D25/00 , F16J15/453
CPC分类号： F01D11/02 , C22C19/00 , C22C19/058 , C22C19/07 , C23C4/073 , C23C28/02 , C23C30/00 , F01D11/001 , F01D11/122 , F05D2220/31 , F05D2300/509 , Y10T428/249961 , Y10T428/249974 , Y10T428/249981 , Y10T428/249989
摘要： PROBLEM TO BE SOLVED: To provide a metal seal material used for a sealing device in which clearance between a stationary part and a rotary part of a turbine can be reduced.SOLUTION: The metal seal material used for the sealing device of the stationary part and the rotary part of the turbine includes a surface layer and a lower layer composed of a porous metal layer, and porosity of the surface layer is smaller than porosity of the lower layer. The porosity of the surface layer is equal to or greater than 60% and less than 65%, and the porosity of the lower layer is equal to or greater than 65% and equal to or less than 75%. The porous metal layer is 0.3 to 3.0 mm in thickness, has MCrAlY alloy which uses Ni or Co for M, as a main component, and may include h-BN of solid lubricating material.
摘要翻译：要解决的问题：提供用于密封装置的金属密封材料，其中可以减少涡轮机的固定部分和旋转部分之间的间隙。解决方案：用于固定部分的密封装置的金属密封材料和涡轮机的旋转部分包括表面层和由多孔金属层构成的下层，表面层的孔隙率小于下层的孔隙率。表面层的孔隙率等于或大于60％且小于65％，下层的孔隙率等于或大于65％且等于或小于75％。多孔金属层的厚度为0.3〜3.0mm，具有使用Ni或Co作为M的MCrAlY合金作为主要成分，并且可以包括固体润滑材料的h-BN。

8. 发明专利

JP2010223624A METHOD FOR ASSESSING REMAINING LIFESPAN OF BOLT USED AT HIGH TEMPERATURES 有权
公开(公告)号：JP2010223624A
公开(公告)日：2010-10-07
申请号：JP2009068790
申请日：2009-03-19
申请人： HITACHI LTD
发明人： ARAI MASAHIKO , KOBAYASHI SHINICHI , DOI HIROYUKI , CHIBA HIROAKI , HANEISHI SHUN
IPC分类号： G01M13/00 , G01N3/00
摘要： PROBLEM TO BE SOLVED: To provide a method for diagnosing the remaining life of a bolt which can be applied to a high-alloy bolt which has few structural changes due to creep damages and has accuracy higher than those of conventional types. SOLUTION: The method for diagnosing the remaining life of a bolt used under high temperatures includes a process for performing a creep test on a bolt material constituting a bolt under diagnose to determine its lifetime and lifetime extension rate; a process for determining theme/temperature parameter from the lifetime and creep test temperature; a process for creating a lifetime diagnosing diagram plotting the time/temperature parameter against the lifetime extension rate; a process for measuring the elongation of the bolt under diagnosis, before and after use; and a process for diagnosing the remaining life of the bolt using the elongation of the bolt under diagnose, before and after use and the lifetime diagnosis diagram. COPYRIGHT: (C)2011,JPO&INPIT

9. 发明专利

JP2010084553A Turbine blade and steam turbine 有权
标题翻译：涡轮叶片和蒸汽涡轮机
公开(公告)号：JP2010084553A
公开(公告)日：2010-04-15
申请号：JP2008252160
申请日：2008-09-30
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： HARUYAMA HIROSHI , DOI HIROYUKI
IPC分类号： F01D5/28 , C21D1/76 , C21D8/00 , C21D9/00 , C22C38/00 , C22C38/46 , C23C8/14 , F01D25/00
摘要： PROBLEM TO BE SOLVED: To provide an inexpensive steam turbine stator blade without using alloy coating such as thermal spray and a sintered body, which is excellent in oxidation resistance, and of which efficiency is not decreased even after operation for a long period of time.
SOLUTION: A turbine blade uses stainless steel containing 8-15 mass% of chromium as base material, and has an oxide film on a surface of the base material. Members constituting the turbine blade are formed by processing a forging material. After surfaces of the members are polished to be 0.5a or less in surface roughness and the polished members are welded to be in a shape of a turbine stator blade, thermal processing is performed at an actual operation temperature or more.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了提供廉价的蒸汽轮机定子叶片，不使用耐热性优异的热喷涂和烧结体等合金涂层，即使长时间操作也不降低效率的时间。解决方案：涡轮叶片使用含有8-15质量％的铬作为基材的不锈钢，并且在基材的表面上具有氧化膜。构成涡轮叶片的构件通过加工锻造材料而形成。将构件的表面抛光至表面粗糙度为0.5μm以下，并将抛光构件焊接成涡轮定子叶片的形状，在实际的工作温度以上进行热处理。版权所有（C）2010，JPO＆INPIT

10. 发明专利

JP2010031812A Turbine rotor 审中-公开
标题翻译：涡轮转子
公开(公告)号：JP2010031812A
公开(公告)日：2010-02-12
申请号：JP2008197171
申请日：2008-07-31
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： NISHIOKA EIJI , ARAI MASAHIKO , HIRUTA RYUSUKE , DOI HIROYUKI
IPC分类号： F01D5/02 , F01D5/06 , F01D25/00
CPC分类号： F01D5/063 , B23K31/02 , B23K33/004 , F05D2230/232
摘要： PROBLEM TO BE SOLVED: To provide a turbine rotor with high reliability of strength without forming penetration beads in the turbine rotor wherein at least butted portions of two rotors are connected via a weld part. SOLUTION: In the steam turbine rotor where a low pressure side rotor and a high pressure side rotor are integrated together by welding respective ends of them to each other, the turbine rotor is provided with a center hole, and the ends of the low pressure side rotor and the high pressure side rotor are in contact with each other via at least two faces in a radial direction and an axial direction, and at least parts of the respective ends are welded together. COPYRIGHT: (C)2010,JPO&INPIT

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