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公开(公告)号：US20100202876A1
公开(公告)日：2010-08-12
申请号：US12674249
申请日：2009-07-30
CPC分类号： F01D5/063 , F01D25/24 , F01K7/18 , F05C2201/0466 , F05D2220/31 , F05D2300/175
摘要： Provided is a steam turbine facility capable of suppressing the possibility of vibration occurrence and a drastic increase in facility cost, thereby realizing an increase in size of the facility, even if steam conditions of 650° C. or higher are adopted. In a steam turbine facility including a high-pressure turbine, an intermediate-pressure turbine, and a low-pressure turbine, the intermediate-pressure turbine is separated into a first intermediate-pressure turbine on a high-temperature and high-pressure side and a second intermediate-pressure turbine on a low-temperature and low-temperature side, at least any one of the rotors and casings of the steam-introduction-side turbines into which steam with a temperature of 650° C. or higher is introduced is formed from Ni-based alloy, and at least any one of the overall rotors and the overall casings of the turbines are constructed by joining together a plurality of rotor members or casing members by welding.
摘要翻译： 提供一种能够抑制振动发生的可能性和设备成本急剧增加的汽轮机设备，即使采用650℃以上的蒸汽条件，也能够实现设备尺寸的增加。 在包括高压涡轮机，中压涡轮机和低压涡轮机的汽轮机设备中，将中压涡轮分离成高温高压侧的第一中压涡轮机， 在低温低温侧的第二中压涡轮机，导入650℃以上的蒸汽的蒸汽导入侧涡轮机的转子和壳体中的至少一个转子和壳体是 由Ni基合金形成，并且通过焊接将多个转子部件或壳体部件接合在一起而构成涡轮机的整体转子和整体壳体中的至少任一个。
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公开(公告)号：US20050236079A1
公开(公告)日：2005-10-27
申请号：US11115159
申请日：2005-04-27
申请人： Shigeki Ueta , Toshiharu Noda , Ryuichi Yamamoto , Yoshikuni Kadoya , Ryotaro Magoshi , Shin Nishimoto
发明人： Shigeki Ueta , Toshiharu Noda , Ryuichi Yamamoto , Yoshikuni Kadoya , Ryotaro Magoshi , Shin Nishimoto
CPC分类号： C22C19/056 , C22C19/03 , C22C19/057 , C22C19/058 , C22F1/10
摘要： The present invention provides a method for producing a low thermal expansion Ni-base superalloy, which includes: preparing an alloy including, by weight %, C: 0.15% or less, Si: 1% or less, Mn: 1% or less, Cr: 5 to 20%, at least one of Mo, W and Re, which satisfy the relationship Mo+½(W+Re): 17 to 27%, Al: 0.1 to 2%, Ti: 0.1 to 2%, Nb and Ta, which satisfy the relationship Nb+Ta/2: 1.5% or less, Fe: 10% or less, Co: 5% or less, B: 0.001 to 0.02%, Zr: 0.001 to 0.2%, a reminder of Ni and inevitable components; subjecting the alloy to a solution heat treatment under the condition of at a temperature of 1000 to 1200° C.; subjecting the alloy to either a carbide stabilizing treatment for making aggregated carbides on grain boundaries and stabilizing the carbides under the conditions of at a temperature of not less than 850° C. and less than 1000° C. and for 1 to 50 hours, or a carbide stabilizing treatment for making aggregated carbides on grain boundaries and stabilizing the carbides by cooling from the temperature in the solution heat treatment to 850° C. at a cooling rate of 100° C. or less per hour; subjecting the alloy to a first aging treatment for precipitating γ′ phase under the conditions of at a temperature of 720 to 900° C. and for 1 to 50 hours; and subjecting the alloy to a second aging treatment for precipitating A2B phase under the conditions of at a temperature of 550 to 700° C. and for 5 to 100 hours.
摘要翻译： 本发明提供一种低热膨胀型Ni基超合金的制造方法，其特征在于，包括：以重量％计含有C：0.15％以下，Si：1％以下，Mn：1％以下的合金， Cr：5〜20％，满足Mo +½（W + Re）：17〜27％，Al：0.1〜2％，Ti：0.1〜2％的Mo，W和Re中的至少一种，Nb 和Ta，其满足Nb + Ta / 2：1.5％以下的关系，Fe：10％以下，Co：5％以下，B：0.001〜0.02％，Zr：0.001〜0.2％，提示Ni 和不可避免的组成部分; 在1000〜1200℃的温度下对合金进行固溶热处理; 使合金进行碳化物稳定化处理，在晶界上形成凝集碳化物，并在不低于850℃且小于1000℃的温度和1至50小时的条件下稳定碳化物，或 碳化物稳定化处理，用于通过从固溶热处理中的温度冷却至850℃，以每小时100℃或更低的冷却速度使晶界上的聚集碳化物稳定化; 在720〜900℃的温度和1〜50小时的条件下对合金进行第一时效处理以使γ相析出; 并在550-700℃的温度和5〜100小时的条件下对该合金进行第二时效处理以沉淀A 2 B相。
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公开(公告)号：US08794913B2
公开(公告)日：2014-08-05
申请号：US12674249
申请日：2009-07-30
CPC分类号： F01D5/063 , F01D25/24 , F01K7/18 , F05C2201/0466 , F05D2220/31 , F05D2300/175
摘要： A steam turbine facility suppresses the possibility of vibration from occurring and prevents a drastic increase in facility cost, thereby realizing an increase in size of the facility, even if steam conditions of 650° C. or higher are adopted. In the steam turbine facility including a high-pressure turbine, an intermediate-pressure turbine, and a low-pressure turbine, the intermediate-pressure turbine is separated into a first intermediate-pressure turbine on a high-temperature and high-pressure side and a second intermediate-pressure turbine on a low-temperature and low-temperature side. At least any one of the rotors and casings of the steam-introduction-side turbines into which steam with a temperature of 650° C. or higher is introduced is formed from Ni-based alloy, and at least any one of the overall rotors and the overall casings of the turbines are constructed by joining together a plurality of rotor members or casing members by welding.
摘要翻译： 蒸汽轮机设备抑制振动发生的可能性，并且防止设备成本的急剧增加，从而即使采用650℃以上的蒸气条件，也能实现设备尺寸的增加。 在包括高压涡轮机，中压涡轮机和低压涡轮机的汽轮机设备中，将中压涡轮机分离成高温高压侧的第一中压涡轮机， 在低温低温侧的第二中压涡轮机。 导入温度为650℃以上的蒸汽的蒸汽引入侧涡轮机的转子和壳体中的至少一个由Ni基合金形成，并且至少全部转子和 通过焊接将多个转子构件或壳体构件接合在一起构成涡轮机的整体壳体。
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公开(公告)号：US20130343893A1
公开(公告)日：2013-12-26
申请号：US14004471
申请日：2012-03-22
申请人： Kenji Kawasaki , Ryuichi Yamamoto , Ikuo Nakamura , Shin Nishimoto , Seiichi Kawaguchi , Takashi Shige
发明人： Kenji Kawasaki , Ryuichi Yamamoto , Ikuo Nakamura , Shin Nishimoto , Seiichi Kawaguchi , Takashi Shige
CPC分类号： F01D5/02 , B23K9/0026 , B23K9/0282 , B23K9/16 , B23K9/235 , B23K31/027 , B23K33/006 , B23K2101/001 , F01D5/063 , F05D2230/232
摘要： A turbine rotor related to the present invention includes a first member, and a second member joined to the first member, wherein the first and the second members are extended in an axial direction of the turbine rotor, a groove portion for welding is formed at a border between the first and the second members and penetrates the bottom portion of the groove portion, and a gas-introducing hole for introducing inert gas inside the turbine rotor is covered by welding.
摘要翻译： 与本发明有关的涡轮转子包括第一构件和与第一构件接合的第二构件，其中第一构件和第二构件沿涡轮转子的轴向延伸，用于焊接的槽部形成在 在第一和第二构件之间的边界，并且穿过槽部的底部，并且用于在涡轮转子内引入惰性气体的气体导入孔被焊接覆盖。
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公开(公告)号：US20100202891A1
公开(公告)日：2010-08-12
申请号：US12674022
申请日：2009-07-30
IPC分类号： F01D5/28
CPC分类号： F01D5/06 , F01D3/02 , F01D5/063 , F05D2300/132 , F05D2300/177
摘要： The object of the invention is to provide a low-pressure turbine rotor capable of maintaining mechanical strength characteristics, and without problems in terms of quality without increasing manufacturing costs and manufacturing days, even if high temperature steam is introduced into the low-pressure turbine. A low-pressure turbine rotor used in a steam turbine facility including a high-pressure turbine, an intermediate-pressure turbine, and a low-pressure turbine includes a member formed from 1CrMoV steel, 2.25CrMoV steel, or 10CrMoV steel arranged on a steam inlet side, and a member formed from 3.5Ni steel arranged on a steam outlet side, which are joined together by welding. Alternatively, the member arranged on the steam inlet side and the member arranged on the steam outlet side, both of which are formed from 3.5Ni steel, are joined together by welding, and the member arranged on the steam inlet side is made of low-impurity 3.5Ni steel containing, by weight %, Si: 0.1% or less, Mn: 0.1% or less, and inevitable impurities containing, by weight %, P: 0.02% or less, S: 0.02% or less, Sn: 0.02% or less, As: 0.02% or less, Sb: 0.02% or less, Al: 0.02% or less, and Cu: 0.1% or less.
摘要翻译： 本发明的目的是提供一种能够保持机械强度特性的低压涡轮转子，即使高温蒸汽被引入低压涡轮机，也不会在不增加制造成本和制造日期的情况下质量方面存在问题。 在包括高压涡轮机，中压涡轮机和低压涡轮机的汽轮机设备中使用的低压涡轮机转子包括由1CrMoV钢，2.25CrMoV钢或设置在蒸汽上的10CrMoV钢形成的部件 入口侧和由布置在蒸汽出口侧的3.5Ni钢形成的构件，其通过焊接连接在一起。 或者，布置在蒸汽入口侧的构件和布置在蒸汽出口侧的构件（两者由3.5Ni钢形成）通过焊接接合在一起，并且布置在蒸汽入口侧的构件由低压 含有重量百分数为Si：0.1％以下，Mn：0.1％以下的杂质的3.5Ni钢，以重量％计含有P：0.02％以下的不可避免的杂质，S：0.02％以下，Sn：0.02 ％以下，As：0.02％以下，Sb：0.02％以下，Al：0.02％以下，Cu：0.1％以下。
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