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1. 发明专利

JPH0320451A CERAMICS-APPLIED TURBINE ROTOR BLADE 失效
公开(公告)号：JPH0320451A
公开(公告)日：1991-01-29
申请号：JP15404489
申请日：1989-06-16
申请人： HITACHI LTD , TOKYO ELECTRIC POWER CO
发明人： KOJIMA YOSHIYUKI , MEHATA TERU , ONAKA NORIYUKI , OSHIMA RYOICHIRO , HARA YUKIYOSHI , WATABE NORIO
IPC分类号： F01D5/28 , C23C4/00 , C23C4/04 , C23C28/00
摘要： PURPOSE:To produce the turbine rotor blade excellent in high temp. corrosion resistance by forming a coating layer consisting of ceramic layer, mixture layer, and alloy layer on the front edge part of a rotor blade base material consisting of a heat resisting alloy composed essentially of Ni, etc., under specific conditions. CONSTITUTION:A coating layer in which a layer 13 of an alloy composed principally of Co and/or Ni, incorporating Cr, Al, Hf, etc., and superior in high temp. oxidation resistance and high temp. corrosion resistance to a base material 12, the layer 14 of a mixture consisting of the above-mentioned alloy and ZrO2- type ceramics and a ceramic layer 11 consisting of ZrO2-type ceramics are successively laminated is formed on the rotor blade base material 12 of a gas turbine rotor blade consisting of a heat resisting alloy composed principally of at least one element among Ni, Co, and Fe. Further, it is preferable that the thicknesses of the ceramic layer 11, the alloy layer 13 and the mixture layer 14 are regulated to 0.05-1.0mm, 0.03-0.5mm, and 0.03-0.5mm, respectively. By this method, the turbine rotor blade sufficiently showing a thermal stress relaxation function under high temp. oxidation and high temp. corrosion conditions can be obtained.

2. 发明专利

JPH01279781A CERAMIC COATED HEAT RESISTANT MEMBER 失效
公开(公告)号：JPH01279781A
公开(公告)日：1989-11-10
申请号：JP10902588
申请日：1988-05-06
申请人： HITACHI LTD , TOKYO ELECTRIC POWER CO
发明人： KOJIMA YOSHIYUKI , MEHATA TERU , CHIBA MASAHIKO , OSHIMA RYOICHIRO , WATANABE NORIO , HARA YUKIYOSHI
IPC分类号： C23C4/00 , C23C4/02 , C23C4/10 , C23C28/00 , C23C30/00 , F23R3/42
摘要： PURPOSE:To produce a ceramic coated heat resistant member used in a corrosive environment at high temp. by successively coating the surface of a heat resistant alloy substrate based on Ni, etc., with a ceramic-metal mixed layer and an alloy layer having higher oxidation and corrosion resistances at high temp. than the substrate and by forming a ceramic coating layer on the alloy layer. CONSTITUTION:When a ceramic coating layer (e.g., ZrO2 ceramic) 1 is formed on the surface of a heat resistant alloy substrate 2 based on at least one among Ni, Co and Fe with a ceramic-metal mixed layer 4 in-between to obtain a ceramic coated member, an alloy layer 3 having higher oxidation and corrosion resistances at high temp. than the substrate 2 is interposed between the ceramic coating layer 1 and the mixed layer 4. The alloy layer 3 contains at least one of Co and Ni, Cr, Al and at least one among Hf, Ta, Y, Si and Zr. The thickness of the ceramic coating layer 1 is regulated to 0.05-1.0mm, that of the alloy layer 3 to 0.03-0.5mm and that of the mixed layer 4 to 0.03-0.5mm.

3. 发明专利

JPS6189904A Ceramic stationary blade structure 失效
标题翻译：陶瓷静态叶片结构
公开(公告)号：JPS6189904A
公开(公告)日：1986-05-08
申请号：JP21138984
申请日：1984-10-11
申请人： Central Res Inst Of Electric Power Ind , Hitachi Ltd
发明人： ABE TOSHIO , ISHIKAWA HIROSHI , HISAMATSU NOBORU , MIYATA HIROSHI , IIJIMA SHIRO , OSHIMA RYOICHIRO
IPC分类号： F01D9/02 , F01D5/28
CPC分类号： F01D5/284
摘要： PURPOSE:To enable thermal stresses to be reduced by assembling a ceramic stationary blade where its wing section and its upper and lower side walls have been fabricated separately. CONSTITUTION:A wing section 1 of a ceramic stational blade is fit into a recess 7 of a ceramic side plate 2 and another recess 8 of a ceramic side plate 3. In addition, an upper side wall 4 and a lower side wall 5 are placed on and under each of the side plates respectively allowing both the side walls 4 and 5 to be connected and fastened firmly by a core member 6. This configuration enables the development of thermal stresses based on difference in temperature between the wing section 1 and the side wall 4 and 5 to be reduced significantly.
摘要翻译：目的：通过组装陶瓷固定叶片来降低热应力，其中翼片部分及其上下侧壁分开制造。构成：将陶瓷花键叶片的翼部1装配到陶瓷侧板2的凹部7和陶瓷侧板3的另一个凹部8中。此外，放置上侧壁4和下侧壁5 分别允许侧壁4和5两者通过芯构件6牢固地连接和紧固。这种构造使得能够基于翼部1和侧面之间的温度差发展热应力壁4和5将显着减少。

4. 发明专利

JPS6189903A Thermal impact structure for ceramic stationary blade 失效
标题翻译：陶瓷静态叶片的热冲击结构
公开(公告)号：JPS6189903A
公开(公告)日：1986-05-08
申请号：JP21139084
申请日：1984-10-11
申请人： Central Res Inst Of Electric Power Ind , Hitachi Ltd
发明人： ABE TOSHIO , ISHIKAWA HIROSHI , HISAMATSU NOBORU , MIYATA HIROSHI , IIJIMA SHIRO , OSHIMA RYOICHIRO
IPC分类号： F01D9/02 , F01D5/28
CPC分类号： F01D5/284
摘要： PURPOSE:To reduce thermal stresses by deviding a wing section of a ceramic stattionary blade chordwise into more than two segments. CONSTITUTION:A wing section of a ceramic stationary blade is devided chordwise into more than two segments: a leading edge section 11 and a trailing edge section 12. This enables each of the segments to deform freely in expansion or contraction allowing thermal stresses to be reduced.
摘要翻译：目的：通过将陶瓷定位刀片的翼部分并排到两个以上的段中来减少热应力。构成：陶瓷固定刀片的翼部分并排分成两段以上：前缘部分11和后缘部分12.这使得每个段能够在膨胀或收缩中自由变形，从而允许热应力减小。

5. 发明专利

JPH0679626A WATER JET PEENING METHOD UNDER WATER 失效
公开(公告)号：JPH0679626A
公开(公告)日：1994-03-22
申请号：JP23183392
申请日：1992-08-31
申请人： BABCOCK HITACHI KK , HITACHI LTD
发明人： OSHIMA RYOICHIRO , KIKUCHI KINYA , SATOU KAZUNORI , SHINDOU TAKENORI , KUROSAWA KOICHI
IPC分类号： B24C1/10
摘要： PURPOSE:To reduce the residual stress of a material to be worked by selecting the optimal water temperature for generating the cavitation appropriate for water jet peening. CONSTITUTION:The high pressure water 2 at 15-70 deg.C is jetted for collision by a high pressure from a nozzle 1 to an objective material 6 of construction of an underwater structure 5 in the ambient water 4 at 15-70 deg.C. This high pressure water 2 as a highspeed water jet with powerful cavitation collides with the objective material 6 of construction, at this stage, a huge number of cavitation bubbles are broken on the surface of the objective material 6 of construction and near by to generate a lot of impact pressure pulses. Crystal grains of the surface of the objective material 6 of construction is plastically deformed so as to be collapsed by this impact pressure, and the condition of residual stress of the objective material 6 of construction is improved from the tensile direction to the compressive direction. With this work, one of three elements (sensitization of material, corrosive environment, and stress) essential for the generation of stress corrosion cracking is eliminated.

6. 发明专利

JPS6363583A DIFFUSION JOINING JOINT AND JOINING METHOD FOR NI-BASE SUPER ALLOY 失效
公开(公告)号：JPS6363583A
公开(公告)日：1988-03-19
申请号：JP20879086
申请日：1986-09-04
申请人： HITACHI LTD
发明人： KATO MITSUO , FUNAMOTO TAKAO , WACHI HIROSHI , KAJIWARA RYOICHI , MATSUZAKA KYO , SHIDA TOMOHIKO , IIZUKA NOBUYUKI , OSHIMA RYOICHIRO
IPC分类号： B23K20/00 , B23K35/30
摘要： PURPOSE:To obtain a joining joint having excellent high-temp. ductility and creep characteristic by specifying the contents of B and Si and average crystal grain size in the joint part of a diffusion joining joint for Ni-base super alloys. CONSTITUTION:Oxide films 2, 2' of Al2O3 or TiO2 formed on the joint surfaces of the Ni-base super alloys 1, 1' which are a base metal are removed to form clean surfaces 3, 3' on the joint surfaces. Ni-base alloy film 4, 4' which have the melting temp. lower than the m.p. of the Ni-base super alloys 1, 1' and contain =1.0mm in average grain size.

7. 发明专利

JPS6189909A Ceramic stationary blade support structure 失效
标题翻译：陶瓷静态刀片支撑结构
公开(公告)号：JPS6189909A
公开(公告)日：1986-05-08
申请号：JP21139284
申请日：1984-10-11
申请人： Central Res Inst Of Electric Power Ind , Hitachi Ltd
发明人： ABE TOSHIO , ISHIKAWA HIROSHI , HISAMATSU NOBORU , MIYATA HIROSHI , IIJIMA SHIRO , OSHIMA RYOICHIRO
IPC分类号： F01D9/02 , F01D5/28
CPC分类号： F01D5/284
摘要： PURPOSE:To prevent a ceramic liner from being broken by configurating a side wall in such a way that members in a form of a letter 'L' are fitted in grooves in a form of a letter 'U' of the liner arranged to a stationary blade. CONSTITUTION:Grooves 21 and 22 in a form of a letter 'U' are cut on both outside surfaces of ceramic liners 4 arranged outside a ceramic blade 1, and one end of members in a form of a letter 'L' 6 and 7 which are fitted in the grooves 21 and 22, is fastened to a side wall 2. And packing 23, 24, 27 and 28 are installed on the outside of the ceramic liners 4. This configuration enables the ceramic liners to be elastically supported allowing the thermal expansion to be absorbed, resultantly this enables the strength reliability to be augmented.
摘要翻译：目的：为了防止通过配置侧壁来破坏陶瓷衬垫，使得将字母“L”形式的构件安装在布置成静止的衬垫的字母“U”形式的凹槽中刀。构成：在陶瓷刀片1外部布置的陶瓷衬里4的两个外表面上切割有字母“U”形式的凹槽21和22，并且以“L”6和7形式的构件的一端切割安装在凹槽21和22中，被紧固到侧壁2.并且衬垫23,24,27和28安装在陶瓷衬垫4的外侧。这种构造使得陶瓷衬垫能够弹性地支撑，从而允许热膨胀被吸收，从而可以增强强度的可靠性。

8. 发明专利

JPS61142335A Method of starting gas turbine plant and device therefor 失效
标题翻译：启动气体涡轮机的方法及其装置
公开(公告)号：JPS61142335A
公开(公告)日：1986-06-30
申请号：JP26278284
申请日：1984-12-14
申请人： Hitachi Ltd
发明人： IIZUKA NOBUYUKI , KUNO KATSUKUNI , OSHIMA RYOICHIRO , WADA KATSUO , HIROSE FUMIYUKI , KURODA MICHIO , UCHIYAMA YOSHIHIRO , ISHIBASHI YOJI , SATO ISAO , INOSE HIROSHI
IPC分类号： F01K23/10 , F02C7/26 , F02C9/18 , F02C9/28 , F02C9/52 , F23R3/26 , F23R3/34
CPC分类号： F23R3/26 , F02C7/26 , F02C9/18 , F05D2270/31 , F23R3/34 , Y02E20/16
摘要： PURPOSE: To facilitate the ignition of secondary fuel in a gas turbine provided with a burner utilizing a two-stage combustion system, by bleeding compressed air after initiation of combustion of secondary fuel upon starting, and by initiating the combustion of secondary air in such a condition that the amount of air flowing into the burner is reduced.
CONSTITUTION: Upon starting of a gas turbine 2 a compressor 1 is at first driven with the use of an auxiliary prime-mover, and when the rotational speed of the turbine reaches a certain value, a fuel adjusting valve 21 is controlled to jet primary fuel from a primary fuel nozzle 19 so that the jetted fuel is ignited. With this arrangement, the gas turbine 2 enters into its self-sustaining operation. When the rotational speed of the gas turbine 2 reaches a predetermined value, a bleed valve 33 is opened to relief air in the compressor 1 to the atmosphere so that the amount of air flowing into a burner 3 may be reduced. Under this bleeding operation a fuel adjusting valve 22 is controlled to feed secondary fuel from a secondary fuel supply port 13 in a step-like manner while the primary fuel is decreased in a step-like manner, and therefore, the secondary fuel is burnt by flame 16 in a head combustion chamber 7.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：为了便于在设有燃烧器的燃气轮机中使用二级燃烧系统点燃二次燃料，通过在起动后二次燃料燃烧后排空压缩空气，并通过在这种燃烧系统中启动二次空气的燃烧条件是流入燃烧器的空气量减少。构成：在启动燃气轮机2时，首先利用辅助原动机来驱动压缩机1，并且当涡轮机的转速达到一定值时，控制燃料调节阀21以喷射初级燃料从主燃料喷嘴19喷射喷射的燃料。利用这种布置，燃气轮机2进入其自维持操作。当燃气轮机2的旋转速度达到预定值时，打开排气阀33以将压缩机1中的空气释放到大气中，从而可以减少流入燃烧器3的空气量。在这种排气操作下，燃料调节阀22被控制成以阶梯状的方式从二次燃料供给口13供给二次燃料，同时一级燃料以阶梯状的方式减少，因此二次燃料被燃烧火焰16在头部燃烧室7中。

9. 发明专利

JPS6189906A Cooling device for ceramics metal compound stationary blade 失效
标题翻译：用于陶瓷金属化合物固定式叶片的冷却装置
公开(公告)号：JPS6189906A
公开(公告)日：1986-05-08
申请号：JP21139384
申请日：1984-10-11
申请人： Central Res Inst Of Electric Power Ind , Hitachi Ltd
发明人： ABE TOSHIO , ISHIKAWA HIROSHI , HISAMATSU NOBORU , MIYATA HIROSHI , IIJIMA SHIRO , OSHIMA RYOICHIRO
IPC分类号： F01D9/02 , F01D5/28
CPC分类号： F01D5/284
摘要： PURPOSE:To reduce the required cooling air volume by configurating cooling air passages inside a metal member arranged within a ceramic stationary blade. CONSTITUTION:A metal member 8 is arranged in the hollow section of a ceramic stationary blade 7 where an upper side wall 3 and an upper ceramic liner 5 are fastened with a respective lower side wall and a respective ceramic liner allowing cooling air passages to be formed inside the metal member 8. Cooling air A enters inside of the blade 7 through the cooling air passages allowing it to be exhausted through fit sections between the blade 7 and the ceramic liners 5 into combustion gas C. This configuration enables the cooling to be limited only to the metal member permitting the required cooling air volume to be reduced significantly.
摘要翻译：目的：通过在布置在陶瓷固定刀片内的金属构件内配置冷却空气通道来减少所需的冷却风量。构成：金属构件8布置在陶瓷固定刀片7的中空部分中，其中上侧壁3和上陶瓷衬垫5用相应的下侧壁和相应的陶瓷衬里紧固，允许形成冷却空气通道冷却空气A通过冷却空气通道进入叶片7的内部，从而允许其通过叶片7和陶瓷衬垫5之间的配合部分排出到燃烧气体C中。这种结构使冷却受到限制仅允许使所需的冷却空气体积显着减小的金属构件。

10. 发明专利

JPH01159423A COMBUSTION SAFETY DEVICE FOR COMBUSTOR 失效
公开(公告)号：JPH01159423A
公开(公告)日：1989-06-22
申请号：JP31625387
申请日：1987-12-16
申请人： HITACHI LTD
发明人： KIRIKAMI SEIICHI , OSHIMA RYOICHIRO , IIZUKA NOBUYUKI , SATO ISAO , HIROSE FUMIYUKI
IPC分类号： F02C9/00
摘要： PURPOSE:To secure proper procedure and interlock and protect a gas turbine by detecting each flame in each combustion at both single and two stages separately, and constituting logics being affected to each other on the basis of each detected result of these flames. CONSTITUTION:A combustion 2 has each of single and two-stage combustion chambers 4, 6. Each of single and two-stage branch lines 20, 30 branched off from a trunk fuel pipeline 10 is connected to each of these combustion chambers 4, 6. In addition, each of stop valves 103, 108 and each of flow regulating valves 104, 110 are set up in these branch lines 20 and 30. In the above constitution, in order to detect plural numbers of flames 120, 122 in the combustor 2, plural numbers of flame detectors 112a, b and 114a-j are set up in these combustion chambers 4, 6. Then, each of these stop valves 103, 108 is driven by each detection signal of these flame detectors 112a, b and 114a-j via each of relays 116, 118.

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