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公开(公告)号：US09540942B2
公开(公告)日：2017-01-10
申请号：US13446707
申请日：2012-04-13
申请人： Xiaoqing Zheng , Daniel Robert Coffey , Guoqiang Lu , John Richard Powers , Steven Paul Scarlata , Christopher David Suttles
发明人： Xiaoqing Zheng , Daniel Robert Coffey , Guoqiang Lu , John Richard Powers , Steven Paul Scarlata , Christopher David Suttles
IPC分类号： F01D11/00
CPC分类号： F01D11/003 , F01D11/04 , F05D2220/31 , F05D2240/63 , F05D2260/6022
摘要： A shaft sealing system and method are disclosed for a high or intermediate pressure turbine section having a rotating member including a shaft and a stationary member surrounding the rotating member and defining a steam flow path. The shaft sealing system comprises at least one seal disposed about each of a first end and a second end of the shaft; and a connection line for conducting steam from the first turbine section to a downstream portion of the turbine. The downstream portion of the turbine is one of a low pressure section and a condenser, and has a lower pressure than both of the first turbine section and ambient pressure conditions.
摘要翻译： 公开了一种用于高压或中压涡轮机部分的轴密封系统和方法，其具有旋转构件，该旋转构件包括轴和围绕旋转构件并限定蒸汽流动路径的静止构件。 所述轴密封系统包括围绕所述轴的第一端和第二端中的每一个设置的至少一个密封件; 以及用于将蒸汽从第一涡轮部分传导到涡轮机的下游部分的连接管线。 涡轮机的下游部分是低压部分和冷凝器之一，并且具有比第一涡轮机部分和环境压力条件都低的压力。
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公开(公告)号：US20130270775A1
公开(公告)日：2013-10-17
申请号：US13446696
申请日：2012-04-13
申请人： Daniel Robert Coffey , Guoqiang Lu , John Richard Powers , Steven Paul Scarlata , Christopher David Suttles , Xiaoqing Zheng
发明人： Daniel Robert Coffey , Guoqiang Lu , John Richard Powers , Steven Paul Scarlata , Christopher David Suttles , Xiaoqing Zheng
IPC分类号： F16J15/40
CPC分类号： F01D11/003 , F01D11/04 , F02C7/28 , F05D2220/31 , F05D2240/63 , F05D2260/6022
摘要： A shaft sealing system and method are disclosed for a low pressure turbine section having a rotating member including a shaft and a stationary member surrounding the rotating member and defining a steam flow path. The shaft sealing system comprises at least one seal disposed about each of a first end and a second end of the shaft; and a connection line for conducting steam from the first turbine section to a downstream portion of the turbine. The downstream portion of the turbine has a lower pressure than both of the first turbine section and ambient pressure conditions.
摘要翻译： 公开了一种用于低压涡轮机部分的轴密封系统和方法，所述低压涡轮部分具有旋转部件，所述旋转部件包括轴和围绕所述旋转部件并限定蒸汽流动路径的静止部件。 所述轴密封系统包括围绕所述轴的第一端和第二端中的每一个设置的至少一个密封件; 以及用于将蒸汽从第一涡轮部分传导到涡轮机的下游部分的连接管线。 涡轮机的下游部分的压力低于第一涡轮部分和环境压力条件。
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公开(公告)号：US20130272872A1
公开(公告)日：2013-10-17
申请号：US13446707
申请日：2012-04-13
申请人： Xiaoqing Zheng , Daniel Robert Coffey , Guoqiang Lu , John Richard Powers , Steven Paul Scarlata , Christopher David Suttles
发明人： Xiaoqing Zheng , Daniel Robert Coffey , Guoqiang Lu , John Richard Powers , Steven Paul Scarlata , Christopher David Suttles
CPC分类号： F01D11/003 , F01D11/04 , F05D2220/31 , F05D2240/63 , F05D2260/6022
摘要： A shaft sealing system and method are disclosed for a high or intermediate pressure turbine section having a rotating member including a shaft and a stationary member surrounding the rotating member and defining a steam flow path. The shaft sealing system comprises at least one seal disposed about each of a first end and a second end of the shaft; and a connection line for conducting steam from the first turbine section to a downstream portion of the turbine. The downstream portion of the turbine is one of a low pressure section and a condenser, and has a lower pressure than both of the first turbine section and ambient pressure conditions.
摘要翻译： 公开了一种用于高压或中压涡轮机部分的轴密封系统和方法，其具有旋转构件，该旋转构件包括轴和围绕旋转构件并限定蒸汽流动路径的静止构件。 所述轴密封系统包括围绕所述轴的第一端和第二端中的每一个设置的至少一个密封件; 以及用于将蒸汽从第一涡轮部分传导到涡轮机的下游部分的连接管线。 涡轮机的下游部分是低压部分和冷凝器之一，并且具有比第一涡轮机部分和环境压力条件都低的压力。
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公开(公告)号：US09255486B2
公开(公告)日：2016-02-09
申请号：US13554048
申请日：2012-07-20
申请人： Guoqiang Lu , Mehmet Demiroglu , Binayak Roy , Deepak Trivedi , Xiaoqing Zheng
发明人： Guoqiang Lu , Mehmet Demiroglu , Binayak Roy , Deepak Trivedi , Xiaoqing Zheng
CPC分类号： F01D11/001 , F05D2240/56 , F16J15/3288
摘要： A brush seal for use between a rotating component and a stationary component in a turbomachine is disclosed. The brush seal according to embodiments of this invention includes a set of bristles having a fixed end and a free end, wherein the fixed end is attached to the rotating component with a mechanical clamping element and the free end extends towards the stationary component, and wherein the set of bristles are angled axially at an axial angle with respect to the rotating component. In one embodiment, the fixed end of the set of bristles are wrapped at least partially around a core element and the clamping element partially surrounds the core element and the fixed end of the set of bristles, wherein the clamping element secures the fixed end of the set of bristles within a circumferential groove in the rotating component.
摘要翻译： 公开了一种在涡轮机中的旋转部件和固定部件之间使用的刷密封件。 根据本发明的实施例的刷密封包括一组具有固定端和自由端的刷毛，其中固定端用机械夹紧元件附接到旋转部件，并且自由端朝向固定部件延伸，并且其中 该组刷毛相对于旋转部件以轴向角度轴向成角度。 在一个实施例中，该组刷毛的固定端至少部分地围绕芯元件包裹，并且夹紧元件部分地围绕该芯组件和该组刷毛的固定端，其中该夹紧元件固定该固定端 在旋转部件中的周向槽内的刷毛组。
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公开(公告)号：US20130256990A1
公开(公告)日：2013-10-03
申请号：US13432259
申请日：2012-03-28
CPC分类号： F16J15/022 , F01D11/00 , F01D11/001 , F05D2220/31 , F05D2300/50212 , F16J15/027 , F16J15/0887 , F16J15/0893
摘要： According to one aspect of the invention, a turbine assembly includes a first stationary component, a second stationary component positioned radially outside the first stationary component, a first key feature on the first stationary component configured to mate to a second key feature on the second stationary component and a seal assembly positioned between the first and second key features to reduce fluid flow between the first and second key features. The seal assembly includes a V-shape member and a second member adjacent to the V-shape member, the second member and V-shape member having different rates of thermal expansion. The seal assembly also includes a latch feature coupled to the V-shape member configured to expand the seal assembly from a compressed state to an expanded sealing state when the seal assembly is subject to an elevated temperature.
摘要翻译： 根据本发明的一个方面，涡轮机组件包括第一固定部件，位于第一静止部件径向外侧的第二固定部件，第一固定部件上的第一键部件，被配置成与第二固定部件上的第二键部件配合 部件和位于第一和第二关键特征之间的密封组件，以减少第一和第二关键特征之间的流体流动。 密封组件包括V形构件和与V形构件相邻的第二构件，第二构件和具有不同热膨胀率的V形构件。 密封组件还包括联接到V形构件的闩锁特征，其构造成当密封组件经受升高的温度时将密封组件从压缩状态膨胀到膨胀的密封状态。
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公开(公告)号：US08789833B2
公开(公告)日：2014-07-29
申请号：US13432259
申请日：2012-03-28
IPC分类号： F16J15/02
CPC分类号： F16J15/022 , F01D11/00 , F01D11/001 , F05D2220/31 , F05D2300/50212 , F16J15/027 , F16J15/0887 , F16J15/0893
摘要： According to one aspect of the invention, a turbine assembly includes a first stationary component, a second stationary component positioned radially outside the first stationary component, a first key feature on the first stationary component configured to mate to a second key feature on the second stationary component and a seal assembly positioned between the first and second key features to reduce fluid flow between the first and second key features. The seal assembly includes a V-shape member and a second member adjacent to the V-shape member, the second member and V-shape member having different rates of thermal expansion. The seal assembly also includes a latch feature coupled to the V-shape member configured to expand the seal assembly from a compressed state to an expanded sealing state when the seal assembly is subject to an elevated temperature.
摘要翻译： 根据本发明的一个方面，涡轮机组件包括第一固定部件，位于第一静止部件径向外侧的第二固定部件，第一固定部件上的第一键部件，被配置成与第二固定部件上的第二键部件配合 部件和位于第一和第二关键特征之间的密封组件，以减少第一和第二关键特征之间的流体流动。 密封组件包括V形构件和与V形构件相邻的第二构件，第二构件和具有不同热膨胀率的V形构件。 密封组件还包括联接到V形构件的闩锁特征，其构造成当密封组件经受升高的温度时将密封组件从压缩状态膨胀到膨胀的密封状态。
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公开(公告)号：US20130256992A1
公开(公告)日：2013-10-03
申请号：US13430991
申请日：2012-03-27
IPC分类号： F16J15/44
CPC分类号： F16J15/3288 , F01D11/00 , F01D11/003 , F05D2240/56
摘要： The present application provides for a brush seal system for use about a rotor of a rotary machine. The brush seal system may include a number of brush seal segments, with each of the brush seal segments having a number of bristles, and one or more of the brush seal segments including an elliptical profile so as to vary a clearance between the brush seal segments and the rotor.
摘要翻译： 本申请提供了一种用于旋转机器的转子的刷密封系统。 刷密封系统可以包括多个刷密封段，其中每个刷密封段具有多个刷毛，并且一个或多个刷密封段包括椭圆形轮廓，以便改变刷密封段之间的间隙 和转子。
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公开(公告)号：US20120288361A1
公开(公告)日：2012-11-15
申请号：US13554048
申请日：2012-07-20
申请人： Guoqiang Lu , Mehmet Demiroglu , Binayak Roy , Deepak Trivedi , Xiaoqing Zheng
发明人： Guoqiang Lu , Mehmet Demiroglu , Binayak Roy , Deepak Trivedi , Xiaoqing Zheng
CPC分类号： F01D11/001 , F05D2240/56 , F16J15/3288
摘要： A brush seal for use between a rotating component and a stationary component in a turbomachine is disclosed. The brush seal according to embodiments of this invention includes a set of bristles having a fixed end and a free end, wherein the fixed end is attached to the rotating component with a mechanical clamping element and the free end extends towards the stationary component, and wherein the set of bristles are angled axially at an axial angle with respect to the rotating component. In one embodiment, the fixed end of the set of bristles are wrapped at least partially around a core element and the clamping element partially surrounds the core element and the fixed end of the set of bristles, wherein the clamping element secures the fixed end of the set of bristles within a circumferential groove in the rotating component.
摘要翻译： 公开了一种在涡轮机中的旋转部件和固定部件之间使用的刷密封件。 根据本发明的实施例的刷密封包括一组具有固定端和自由端的刷毛，其中固定端用机械夹紧元件附接到旋转部件，并且自由端朝向固定部件延伸，并且其中 该组刷毛相对于旋转部件以轴向角度轴向成角度。 在一个实施例中，该组刷毛的固定端至少部分地围绕芯元件包裹，并且夹紧元件部分地围绕该芯组件和该组刷毛的固定端，其中该夹紧元件固定该固定端 在旋转部件中的周向槽内的刷毛组。
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9.发明授权Seal assembly including plateau and concave portion in mating surface for seal tooth in turbine 有权密封组件包括用于涡轮机中密封齿的配合表面中的平台和凹部公开(公告)号：US08936247B2
公开(公告)日：2015-01-20
申请号：US12782330
申请日：2010-05-18
申请人： Xiaoqing Zheng
发明人： Xiaoqing Zheng
IPC分类号： F16J15/447 , F01D11/00 , F01D5/22 , F01D11/02 , F01D11/16
CPC分类号： F01D11/001 , F01D5/225 , F01D11/02 , F01D11/025 , F01D11/16 , F05D2250/28 , F05D2250/29 , F05D2250/293
摘要： A seal assembly for sealing a stationary component and a rotating component including a seal tooth mating surface for mating with a seal tooth, the seal tooth mating surface including a plateau portion for sealingly receiving the seal tooth during a steady-state operation of the seal assembly and a first concave portion adjacent to the plateau portion for receiving the seal tooth with a clearance during a first non-steady-state operation of the seal assembly, wherein the seal tooth is coupled to one of the stationary component and the rotating component and the seal tooth mating surface is coupled to the other of the stationary component and the rotating component.
摘要翻译： 一种用于密封固定部件的密封组件和包括用于与密封齿配合的密封齿配合表面的旋转部件，密封齿配合表面包括用于在密封组件的稳态操作期间密封地接收密封齿的平台部分 以及与所述平台部分相邻的第一凹部，用于在所述密封组件的第一非稳态操作期间以间隙接收所述密封齿，其中所述密封齿与所述固定部件和所述旋转部件中的一个连接， 密封齿配合表面联接到固定部件和旋转部件中的另一个。
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10.发明授权公开(公告)号：US08920835B2
公开(公告)日：2014-12-30
申请号：US13512402
申请日：2010-11-22
申请人： Yong Gan , Chunliu Zhu , Qingmin Yang , Jingyi Wang , Xiaoqing Zheng , Li Gan , Xinxin Zhang
发明人： Yong Gan , Chunliu Zhu , Qingmin Yang , Jingyi Wang , Xiaoqing Zheng , Li Gan , Xinxin Zhang
IPC分类号： A61K9/24 , A61K9/28 , A61K31/519 , A61P25/18 , B05D5/00 , A61K9/00 , A61K9/20 , A61K31/517
CPC分类号： A61K9/0004 , A61K9/2086 , A61K9/2866 , A61K31/517
摘要： A paliperidone double-layered osmotic pump controlled release tablet and the preparation method thereof are disclosed. The double-layered osmotic pump controlled release tablet comprises a rigid membrane, a push layer, a drug layer, an isolation layer and an aesthetic coating, wherein the rigid membrane contains a semi-permeable polymer, a porogen and/or a plasticizer and has one or more drug release orifices on one end, the push layer comprises an expanding material, an osmotic agent, a binder, a colorant and a lubricant, the drug layer contains a pharmaceutically active ingredient, a hydrophilic polymer, an osmotic agent, a colorant, a lubricant and an antistatic agent, the isolation layer is located between the inner surface of the rigid membrane and the push layer, and contains a hydrophilic polymer. The paliperidone double-layered osmotic pump controlled release tablet shows an increasing drug release rate at early stage and keeps a constant drug release rate at later stage.
摘要翻译： 披露了一种帕培酮双层渗透泵控释片及其制备方法。 双层渗透泵控制释放片剂包括刚性膜，推层，药物层，隔离层和美容涂层，其中刚性膜含有半透性聚合物，致孔剂和/或增塑剂，并且具有 一个或多个药物释放孔在一端，推层包括膨胀材料，渗透剂，粘合剂，着色剂和润滑剂，药物层含有药物活性成分，亲水性聚合物，渗透剂，着色剂 ，润滑剂和抗静电剂，隔离层位于刚性膜的内表面和推层之间，并含有亲水性聚合物。 帕潘立酮双层渗透泵控释片剂在早期阶段呈现出药物释放速率的增加，药物释放速率在后期保持不变。
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