公开(公告)号：US08684663B2

公开(公告)日：2014-04-01

申请号：US12893761

申请日：2010-09-29

申请人： Rabiye Bekyigit ,  Philipp Brunner ,  Jian Chen ,  Rolf Dobler ,  Jozo Drmic ,  Andreas Ehrsam ,  Maurus Herzog ,  Davor Kriz ,  Thomas Mokulys ,  Martin Reigl ,  Luca Ripamonti ,  Thomas Schreier ,  Giorgio Zanazzi

发明人： Rabiye Bekyigit ,  Philipp Brunner ,  Jian Chen ,  Rolf Dobler ,  Jozo Drmic ,  Andreas Ehrsam ,  Maurus Herzog ,  Davor Kriz ,  Thomas Mokulys ,  Martin Reigl ,  Luca Ripamonti ,  Thomas Schreier ,  Giorgio Zanazzi

IPC分类号： F01D25/12

CPC分类号： F01D3/04 ,  F01D5/06 ,  F01D5/08 ,  F01D25/14

摘要： A steam turbine is provided having a relief groove which is arranged in the region of the equalizing piston and extends in the circumferential direction of the rotor. The relief groove, with regard to an inlet passage, is arranged in the axial upstream direction so that it is arranged on the rotor outside a region in which the steam flow enters the bladed flow path via the inlet passage. The relief groove, with regard to the first blade row, is arranged in a region in which the greatest thermal stresses can arise in the rotor. As an option, the relief groove has a cover for reducing vortex flows, and also devices for reducing heating of the groove or devices for active cooling. The steam turbine allows an increased number of risk-free running up and running down operations of the steam turbine with minimum detriment to the turbine performance.

摘要翻译： 一种蒸汽轮机，其具有设置在均压活塞的区域中并在转子的圆周方向上延伸的释放槽。 相对于入口通道的释放槽布置在轴向上游方向上，使得其在转子的外侧经由入口通道进入叶片流动路径的区域外部。 相对于第一叶片排，安全槽布置在转子中可能产生最大热应力的区域中。 作为一种选择，该释放槽具有用于减少涡流的盖，以及用于减少用于主动冷却的槽或装置的加热的装置。 蒸汽轮机允许蒸汽轮机的无风险运行和运行的次数增加，同时对涡轮机性能的影响最小。

公开(公告)号：US08454306B2

公开(公告)日：2013-06-04

申请号：US12622823

申请日：2009-11-20

申请人： Thomas Mokulys ,  Vishal Borikar ,  Giorgio Zanazzi ,  Davor Kriz ,  Hans-Ludwig Boxheimer ,  Luca Ripamonti ,  Maurus Herzog ,  Martin Reigl ,  Rolf Doebler ,  Jozo Drmic ,  Jian Chen ,  Rabiye Bekyigit

发明人： Thomas Mokulys ,  Vishal Borikar ,  Giorgio Zanazzi ,  Davor Kriz ,  Hans-Ludwig Boxheimer ,  Luca Ripamonti ,  Maurus Herzog ,  Martin Reigl ,  Rolf Doebler ,  Jozo Drmic ,  Jian Chen ,  Rabiye Bekyigit

IPC分类号： F01D5/18

CPC分类号： F01D5/08 ,  F01D3/04 ,  F01D5/082 ,  F01D5/084 ,  F01D5/087 ,  F01D25/12 ,  F05D2220/31 ,  F05D2260/20 ,  F05D2260/231 ,  F05D2260/2322

摘要： A steam turbine (10), especially for the high-pressure range or intermediate-pressure range, includes a rotor (11) which is rotatably mounted around an axis and concentrically enclosed at a distance by an inner casing (12), wherein between the rotor (11) and the inner casing (12) a flow passage (13) is formed, which on the inlet side is axially delimited by a balance piston (18) which is arranged on the rotor (11), and into which flow passage rotor blades (15) and stator blades (17), alternating in the direction of flow, radially project, and wherein, at the entry of the flow passage (13), an inlet scroll (14), through which steam is guided from the outside radially inwards and deflected in a deflection region (27) in the axial direction to the inlet of the flow passage (13), is formed on the inner casing (12). A reduction of the thermal loads and stresses is achieved by a stress-relief slot (20) in the deflection region (27) upstream of the first rotor blade row (15) for reducing stresses in the fastening slot (16) of the first rotor blade row (15) in the rotor (11), and by a heat shield (21) arranged in the region of the stress-relief slot (20) for protecting the rotor (11) against high temperatures.

摘要翻译： 特别是用于高压范围或中压范围的蒸汽轮机（10）包括转子（11），该转子可围绕轴线可旋转地安装并且通过内壳体（12）同心地封闭一定距离，其中在 转子（11）和内壳体（12）形成有一个流动通道（13），该通道在入口侧由设置在转子（11）上的平衡活塞（18）轴向限定，流道 转子叶片（15）和定子叶片（17），其在流动方向上交替，径向突出，并且其中在流动通道（13）入口处具有入口涡旋件（14），蒸汽从所述入口涡卷 在内壳体（12）上形成有径向向内并在偏转区域（27）中沿着轴向方向偏转到流路（13）的入口的外侧。 通过在第一转子叶片排（15）上游的偏转区域（27）中的应力消除槽（20）来实现热负荷和应力的减小，以减小第一转子的紧固槽（16）中的应力 转子（11）中的叶片排（15）和布置在应力消除槽（20）的区域中的隔热罩（21），用于保护转子（11）免受高温的影响。

公开(公告)号：US20110103970A1

公开(公告)日：2011-05-05

申请号：US12893761

申请日：2010-09-29

申请人： Rabiye BEKYIGIT ,  Philipp BRUNNER ,  Jian CHEN ,  Rolf DÖBLER ,  Jozo DRMIC ,  Andreas EHRSAM ,  Maurus HERZOG ,  Davor KRIZ ,  Thomas MOKULYS ,  Martin REIGL ,  Luca RIPAMONTI ,  Thomas SCHREIER ,  Giorgio ZANAZZI

发明人： Rabiye BEKYIGIT ,  Philipp BRUNNER ,  Jian CHEN ,  Rolf DÖBLER ,  Jozo DRMIC ,  Andreas EHRSAM ,  Maurus HERZOG ,  Davor KRIZ ,  Thomas MOKULYS ,  Martin REIGL ,  Luca RIPAMONTI ,  Thomas SCHREIER ,  Giorgio ZANAZZI

IPC分类号： F01D5/18

CPC分类号： F01D3/04 ,  F01D5/06 ,  F01D5/08 ,  F01D25/14

摘要： A steam turbine is provided having a relief groove which is arranged in the region of the equalizing piston and extends in the circumferential direction of the rotor. The relief groove, with regard to an inlet passage, is arranged in the axial upstream direction so that it is arranged on the rotor outside a region in which the steam flow enters the bladed flow path via the inlet passage. The relief groove, with regard to the first blade row, is arranged in a region in which the greatest thermal stresses can arise in the rotor. As an option, the relief groove has a cover for reducing vortex flows, and also devices for reducing heating of the groove or devices for active cooling. The steam turbine allows an increased number of risk-free running up and running down operations of the steam turbine with minimum detriment to the turbine performance.

摘要翻译： 一种蒸汽轮机，其具有设置在均压活塞的区域中并在转子的圆周方向上延伸的释放槽。 相对于入口通道的释放槽布置在轴向上游方向上，使得其在转子的外侧经由入口通道进入叶片流动路径的区域外部。 相对于第一叶片排，安全槽布置在转子中可能产生最大热应力的区域中。 作为一种选择，该释放槽具有用于减少涡流的盖，以及用于减少用于主动冷却的槽或装置的加热的装置。 蒸汽轮机允许蒸汽轮机的无风险运行和运行的次数增加，同时对涡轮机性能的影响最小。

公开(公告)号：US20100129207A1

公开(公告)日：2010-05-27

申请号：US12622823

申请日：2009-11-20

申请人： Thomas Mokulys ,  Vishal Borikar ,  Giorgio Zanazzi ,  Davor Kriz ,  Hans-Ludwig Boxheimer ,  Luca Ripamonti ,  Maurus Herzog ,  Martin Reigl ,  Rolf Doebler ,  Jozo Drmic ,  Jian Chen ,  Rabiye Bekyigit

发明人： Thomas Mokulys ,  Vishal Borikar ,  Giorgio Zanazzi ,  Davor Kriz ,  Hans-Ludwig Boxheimer ,  Luca Ripamonti ,  Maurus Herzog ,  Martin Reigl ,  Rolf Doebler ,  Jozo Drmic ,  Jian Chen ,  Rabiye Bekyigit

IPC分类号： F01D25/08

CPC分类号： F01D5/08 ,  F01D3/04 ,  F01D5/082 ,  F01D5/084 ,  F01D5/087 ,  F01D25/12 ,  F05D2220/31 ,  F05D2260/20 ,  F05D2260/231 ,  F05D2260/2322

摘要： A steam turbine (10), especially for the high-pressure range or intermediate-pressure range, includes a rotor (11) which is rotatably mounted around an axis and concentrically enclosed at a distance by an inner casing (12), wherein between the rotor (11) and the inner casing (12) a flow passage (13) is formed, which on the inlet side is axially delimited by a balance piston (18) which is arranged on the rotor (11), and into which flow passage rotor blades (15) and stator blades (17), alternating in the direction of flow, radially project, and wherein, at the entry of the flow passage (13), an inlet scroll (14), through which steam is guided from the outside radially inwards and deflected in a deflection region (27) in the axial direction to the inlet of the flow passage (13), is formed on the inner casing (12). A reduction of the thermal loads and stresses is achieved by a stress-relief slot (20) in the deflection region (27) upstream of the first rotor blade row (15) for reducing stresses in the fastening slot (16) of the first rotor blade row (15) in the rotor (11), and by a heat shield (21) arranged in the region of the stress-relief slot (20) for protecting the rotor (11) against high temperatures.

摘要翻译： 特别是用于高压范围或中压范围的蒸汽轮机（10）包括转子（11），该转子可围绕轴线可旋转地安装并且通过内壳体（12）同心地封闭一定距离，其中在 转子（11）和内壳体（12）形成有一个流动通道（13），该通道在入口侧由设置在转子（11）上的平衡活塞（18）轴向限定，流道 转子叶片（15）和定子叶片（17），其在流动方向上交替，径向突出，并且其中在流动通道（13）入口处具有入口涡旋件（14），蒸汽从所述入口涡卷 在内壳体（12）上形成有径向向内并在偏转区域（27）中沿着轴向方向偏转到流路（13）的入口的外侧。 通过在第一转子叶片排（15）上游的偏转区域（27）中的应力消除槽（20）来实现热负荷和应力的减小，以减小第一转子的紧固槽（16）中的应力 转子（11）中的叶片排（15）和布置在应力消除槽（20）的区域中的隔热罩（21），用于保护转子（11）免受高温的影响。