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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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公开(公告)号：US20110309585A1
公开(公告)日：2011-12-22
申请号：US13203874
申请日：2010-06-08
IPC分类号： F16J15/32
CPC分类号： F16J15/4472 , F01D11/02 , F05D2240/57 , F16J15/3292 , F16J15/445
摘要： A shaft seal device that seals between the outer peripheral surface of a rotating shaft and a stationary member that is provided on the outer peripheral side of the rotating shaft, provided with a thin-plate seal that has a plurality of thin plates that are arranged in the circumferential direction of the rotating shaft and an abradable seal that is arranged at a position differing with the thin-plate seal in the axial direction, and having a free-cutting material that is disposed at either one of the rotating shaft and the stationary member, and a seal fin that projects toward the rotating shaft or stationary member from the other of the rotating shaft and the stationary member.
摘要翻译： 一种轴封装置，其密封在旋转轴的外周面和设置在所述旋转轴的外周侧的固定构件之间，所述固定构件设置有薄板密封，所述薄板密封具有多个薄板， 旋转轴的圆周方向和布置在与薄板密封件沿轴向不同的位置的可磨损密封件，并且具有设置在旋转轴和固定构件中的任一个上的自由切削材料 以及从旋转轴和固定构件的另一个朝向旋转轴或固定构件突出的密封翅片。
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公开(公告)号：US20110316237A1
公开(公告)日：2011-12-29
申请号：US13203885
申请日：2010-06-09
IPC分类号： F16J15/447
CPC分类号： F16J15/3292 , F01D11/001 , F05D2240/56
摘要： A shaft seal that is constituted by annularly arranging a plurality of seal segments in the circumferential direction of a rotating shaft, in which each seal segment has a plurality of thin plates that are provided in a predetermined arrangement in the circumferential direction of the rotating shaft, side plates that sandwich the plurality of thin plates from both sides thereof in the axial direction, and retention rings that retain the base ends of the plurality of thin plates and the base ends of the side plates; the distal ends of the thin plates protrude farther toward the rotating shaft than the distal ends of the side plates, and the protrusion length of the distal ends of the thin plates in the vicinity of the end portions in the circumferential direction where adjacent seal segments are connected is set to be less than the protrusion length of the distal ends of the thin plates that are located at the middle of the seal segment in the circumferential direction.
摘要翻译： 一种轴密封件，其在旋转轴的圆周方向上环形地设置多个密封段，其中每个密封段具有沿旋转轴的圆周方向以预定布置设置的多个薄板， 在轴向两侧夹着多个薄板的侧板以及保持多个薄板的基端和侧板的基端的保持环， 所述薄板的前端比所述侧板的前端朝向所述旋转轴的前端突出，并且所述薄板的前端在相邻的密封片段的圆周方向的端部附近的突出长度为 被连接的位置设定为小于位于密封片的中央处的圆周方向的薄板的前端的突出长度。
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公开(公告)号：US08083874B2
公开(公告)日：2011-12-27
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： A method for producing a low thermal expansion Ni-base superalloy including the steps of subjecting the alloy to a solution heat treatment under the condition of at a temperature of 1000 to 1200° C. and 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. The method also including the steps of subjecting the alloy to a first aging treatment for precipitating y′ 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： 一种生产低热膨胀Ni基超合金的方法，包括以下步骤：在1000-1200℃的温度下对合金进行固溶热处理，并对合金进行碳化物稳定化处理 在不低于850℃，小于1000℃的温度和1〜50小时的条件下，在晶界上凝集的碳化物并使碳化物稳定，或者在晶界上形成碳化碳的碳化物稳定化处理 并且通过从固溶热处理中的温度冷却至850℃，以每小时100℃或更低的冷却速度来稳定碳化物。 该方法还包括以下步骤：在720至900℃的温度和1至50小时的条件下对合金进行第一时效处理以沉淀y相，并对合金进行第二时效处理 用于在550-700℃的温度和5-100小时的条件下沉淀A2B相。
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公开(公告)号：US08025296B2
公开(公告)日：2011-09-27
申请号：US11584670
申请日：2006-10-23
申请人： Hidekazu Uehara , Tanehiro Shinohara , Takashi Nakano , Shin Nishimoto , Hirokazu Shirai , Toshio Asada
发明人： Hidekazu Uehara , Tanehiro Shinohara , Takashi Nakano , Shin Nishimoto , Hirokazu Shirai , Toshio Asada
IPC分类号： F16J15/447
CPC分类号： F16J15/3292 , F01D11/00 , F05D2240/57
摘要： In a shaft sealing mechanism which prevents fluid from flowing in an axial direction of a rotor through an annular gap between the rotor and a stator, there are provided a high pressure side plate positioned on a high pressure side region of a plurality of sheets, and a low pressure side plate positioned on a low pressure side region of the plurality of sheets, and construction is such that in a state in which the plurality of sheets is fixed on a stator side, and when under gas pressure, the sheets make contact with each other.
摘要翻译： 在防止流体通过转子和定子之间的环形间隙流过转子轴向的轴封机构中，设置有位于多个片材的高压侧区域的高压侧板， 位于多个片材的低压侧区域的低压侧板，其结构是在多个片材固定在定子侧的状态下，在气体压力下，片材与 彼此。
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公开(公告)号：US20110142713A1
公开(公告)日：2011-06-16
申请号：US13055804
申请日：2009-06-29
CPC分类号： F01D5/063 , B23K35/24 , B23K35/3033 , B23K2101/001 , B23K2103/08 , B23K2103/26 , C22C19/055 , C22C19/056 , Y02T50/671
摘要： Disclosed is a welding material for a Ni-based alloy, comprising components expressed as follows: C≦0.05 mass %; 8 mass %≦Cr≦25 mass %; Fe≦4.0 mass %; W≦15 mass %; 5 mass %≦Mo+½(W+Re)≦20 mass %; Co≦20 mass %; 0.01 mass %≦Al
摘要翻译： 公开了一种用于Ni基合金的焊接材料，其包含表示如下的组分：C＆lt; lE; 0.05质量％ 8质量％＆nlE; Cr＆nlE; 25质量％ Fe + nIE; 4.0质量％; W＆nlE; 15质量％; 5质量％＆amp; NlE; Mo + 1/2（W + Re）＆nlE; 20质量％ Co＆nlE; 20质量％; 0.01质量％＆amp; A1; Al <2.0质量％; 0.01质量％; Ti <2.0质量％; Al +½Ti＆nlE; 3.0质量％; Nb +½Ta＆nlE; 1.5质量％ B＆nlE; 0.007质量％; Zr＆nlE; 0.04质量％ 0.01质量％＆nlE; Si＆NlE; 0.5质量％ Mn＆nlE; 1.0质量％ P＆nlE; 0.010质量％; S＆nlE; 0.002质量％; O＆NlE; 0.005质量％ 构成平衡的Ni和不可避免的杂质。
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公开(公告)号：US07364165B2
公开(公告)日：2008-04-29
申请号：US10849023
申请日：2004-05-20
申请人： Takashi Nakano , Hirokazu Shirai , Toshio Asada , Shin Nishimoto , Tanehiro Shinohara , Hidekazu Uehara
发明人： Takashi Nakano , Hirokazu Shirai , Toshio Asada , Shin Nishimoto , Tanehiro Shinohara , Hidekazu Uehara
IPC分类号： F01D11/02
CPC分类号： F16J15/3292
摘要： A leaf seal as a shaft seal mechanism is made compact and enables reduction of manufacturing cost. Plural thin plates 29 lapped one on another in layers have their outer circumferential proximal ends fixed to each other by welding so that an annular thin plate assembly 29A having flexibility is formed. This thin plate assembly 29A is bent and assembled to form the leaf seal 25.
摘要翻译： 作为轴封机构的叶片密封结构紧凑，能够降低制造成本。 层叠的多个薄板29通过焊接使其外周近端彼此固定，从而形成具有柔性的环状薄板组件29A。 该薄板组件29A被弯曲并组装以形成叶片密封件25。
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18.发明申请Shaft sealing mechanism, structure for mounting shaft sealing mechanism on stator, and turbine 有权轴密封机构，定子上安装轴封机构的结构和涡轮机公开(公告)号：US20060033285A1
公开(公告)日：2006-02-16
申请号：US11200128
申请日：2005-08-10
IPC分类号： F16J15/44
CPC分类号： F16J15/3292
摘要： A shaft sealing mechanism of an annular shape having at least one divided portion, which is installed in an annular space between a rotor and a stator, includes a group of thin plates. Outer peripheral ends of the thin plates are joined, and inner peripheral free ends come in contact with the rotor in a sliding manner so that a surface of the rotor and the thin plates form an acute angle to partition the annular space into a high-pressure region and a low-pressure region without being joined. At least a low-pressure gap near the divided portion is set to be larger than a low-pressure gap in a circumferential direction other than near the divided portion.
摘要翻译： 具有至少一个分割部分的环形轴封机构，其安装在转子和定子之间的环形空间中，包括一组薄板。 连接薄板的外周端，并且内周自由端以滑动方式与转子接触，使得转子和薄板的表面形成锐角，以将环形空间分隔成高压 区域和低压区域而不连接。 在分割部附近的至少一个低压隙被设定为大于在分割部附近的圆周方向上的低压间隙。
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公开(公告)号：US09677410B2
公开(公告)日：2017-06-13
申请号：US13994877
申请日：2011-12-20
IPC分类号： F01D11/00 , F16J15/3292
CPC分类号： F01D11/00 , F01D11/001 , F05D2240/59 , F16J15/3292
摘要： A shaft sealing device and a rotary machine equipped therewith are provided with a sealing body configured by stacking a plurality of thin sealing pieces; and a low-pressure-side side sealing plate in which a plate surface facing the low-pressure side is pressed against an inner wall surface of the housing facing the direction of the axis by means of the pressure of a fluid applied from a high-pressure side to the low-pressure side. A protrusion for blocking a downward flow toward the inside of the low-pressure-side side sealing plate in the radial direction along the low-pressure side of the sealing body is formed on the inside of the low-pressure-side side sealing plate in the radial direction, and a communication path for guiding the downward flow blocked by means of the protrusion to a low-pressure-side region is formed on the housing.
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公开(公告)号：US09399925B2
公开(公告)日：2016-07-26
申请号：US12993886
申请日：2009-04-24
申请人： Takashi Nakano , Shin Nishimoto , Hidekazu Uehara
发明人： Takashi Nakano , Shin Nishimoto , Hidekazu Uehara
CPC分类号： F01D11/025 , F01D11/22 , F05D2240/55 , F16J15/442
摘要： A seal structure partitions a high-pressure portion and a low-pressure portion including spring-back seal rings on the high-pressure side, including ACC seal rings and fins on the low-pressure side. The ACC seal rings have an adjustable movable seal ring which is a movable seal ring that is movable in a substantially radial direction at a portion thereof and which partitions a high-pressure side steam chamber and a medium-pressure side steam chamber with the fins and a circumferential surface, and including a pressure equalizing pipe that connects the low-pressure side of the adjustable movable seal ring to a high-pressure outlet portion, is provided with an adjusting pipe that connects, on the high-pressure side steam chamber side of the ACC seal rings, a high-pressure dummy to the same high-pressure outlet portion as the medium-pressure side steam chamber, and an open/close valve in the adjusting pipe.
摘要翻译： 密封结构将包括高压侧的回弹密封环的高压部和低压部分分隔开，包括ACC密封环和低压侧的翅片。 ACC密封环具有可调节的可移动密封环，该可移动密封环是可移动的密封环，其可在其一部分沿大致径向方向移动，并且将具有翅片的高压侧蒸汽室和中压侧蒸汽室分隔开， 包括将可调节可动密封环的低压侧连接到高压出口部的压力平衡管，其外周面设有调节管，该调节管在高压侧蒸汽室侧 ACC密封圈，与中压侧蒸汽室相同的高压出口部分的高压假体，以及调节管中的开/关阀。
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