公开(公告)号：WO1996029507A2

公开(公告)日：1996-09-26

申请号：PCT/US1996002837

申请日：1996-03-01

Applicant: WESTINGHOUSE ELECTRIC CORPORATION

Inventor： WESTINGHOUSE ELECTRIC CORPORATION ,  GRAY, Lewis ,  GROENENDAAL, John, C., Jr.

IPC: F01D25/32

CPC classification number: F01D25/32

Abstract: A steam turbine having improved stationary parts in which a moisture removal slot (16) is formed in a blade ring (10) cylinder immediately upstream of the last row of rotating blades. The slot has a reduced width inlet throat portion (23) and an enlarged manifold portion (11). The manifold portion of the slot distributes the moisture collected to a plurality of radially oriented discharge holes (24) formed in the blade ring. The inlet throat serves to insolate the manifold from the swirling steam flowing through the turbine, thereby preventing entrainment of the moisture droplets into the steam flow. The blade ring encircles the tips (26) of the last row of rotating blades and the outer flow guide (9) is integrally formed on the blade ring.

Abstract translation: 一种具有改进的静止部件的蒸汽轮机，其中在最后一排旋转叶片的上游的叶片环（10）圆柱体中形成除湿槽（16）。 狭槽具有减小的入口喉部部分（23）和扩大的歧管部分（11）。 槽的歧管部分将收集的水分散布到形成在叶片环中的多个径向取向的排出孔（24）。 入口喉部用于使歧管从流过涡轮机的旋转蒸汽中取出，从而防止水滴夹带到蒸汽流中。 叶片环围绕最后一排旋转叶片的尖端（26），并且外部流动引导件（9）整体地形成在叶片环上。

公开(公告)号：WO1995034746A1

公开(公告)日：1995-12-21

申请号：PCT/US1995007030

申请日：1995-06-05

Applicant: WESTINGHOUSE ELECTRIC CORPORATION

Inventor： WESTINGHOUSE ELECTRIC CORPORATION ,  GRAY, Lewis

IPC: F01D25/30

CPC classification number: F04D29/541 ,  F01D25/30

Abstract: An exhaust system for an axial flow turbomachine having a diffuser comprised of inner (8) and outer (9) flow guides that direct the flow of working fluid from a turbine cylinder to an exhaust housing having a bottom opening (32), thereby turning the flow 90 DEG from the axial to radial direction. The flow (22) exiting at the top of the diffuser is directed by a flow-guiding surface of the exhaust housing to turn 180 DEG from the vertically upward direction to the downward direction. The axial length of the outer flow guide (9) varies around the circumference thereof as a function of the distance from the flow-guiding surface of the exhaust housing to the inlet (12) of the outer flow guide so that the axial length of the outer flow guide is less than 30 % of the height of the last row blade airfoil throughout any portions of the outer flow guide in which the distance from the flow-guiding surface (10, 7) to the outer flow guide inlet (12) is less than the height of the airfoil.

Abstract translation: 一种用于轴流式涡轮机的排气系统，其具有由内部（8）和外部（9）流动引导件组成的扩散器，其将工作流体从涡轮机气缸引导到具有底部开口（32）的排气壳体，从而转动 从轴向到径向流动90度。 在扩散器顶部流出的流体（22）由排气壳体的导流表面引导，从垂直向上的方向向下旋转180度。 外流动引导件（9）的轴向长度作为从排气壳体的流动引导表面到外部流动引导件的入口（12）的距离的周长围绕其外围变化，使得轴向长度 外流动引导件小于最后一个叶片翼型件在外流动导向件的任何部分的高度的30％，其中从导流表面（10,7）到外部流动引导入口（12）的距离为 小于机翼的高度。

公开(公告)号：EP0765431A1

公开(公告)日：1997-04-02

申请号：EP95923694.0

申请日：1995-06-05

Applicant: WESTINGHOUSE ELECTRIC CORPORATION

Inventor： GRAY, Lewis

IPC: F01D25 ,  F04D29

CPC classification number: F04D29/541 ,  F01D25/30

Abstract: An exhaust system for an axial flow turbomachine having a diffuser comprised of inner (8) and outer (9) flow guides that direct the flow of working fluid from a turbine cylinder to an exhaust housing having a bottom opening (32), thereby turning the flow 90° from the axial to radial direction. The flow (22) exiting at the top of the diffuser is directed by a flow-guiding surface of the exhaust housing to turn 180° from the vertically upward direction to the downward direction. The axial length of the outer flow guide (9) varies around the circumference thereof as a function of the distance from the flow-guiding surface of the exhaust housing to the inlet (12) of the outer flow guide so that the axial length of the outer flow guide is less than 30 % of the height of the last row blade airfoil throughout any portions of the outer flow guide in which the distance from the flow-guiding surface (10, 7) to the outer flow guide inlet (12) is less than the height of the airfoil.

公开(公告)号：EP0765431B1

公开(公告)日：1998-08-12

申请号：EP95923694.4

申请日：1995-06-05

Applicant: WESTINGHOUSE ELECTRIC CORPORATION

Inventor： GRAY, Lewis

IPC: F01D25/30 ,  F04D29/54

CPC classification number: F04D29/541 ,  F01D25/30

Abstract: An exhaust system for an axial flow turbomachine having a diffuser comprised of inner (8) and outer (9) flow guides that direct the flow of working fluid from a turbine cylinder to an exhaust housing having a bottom opening (32), thereby turning the flow 90 DEG from the axial to radial direction. The flow (22) exiting at the top of the diffuser is directed by a flow-guiding surface of the exhaust housing to turn 180 DEG from the vertically upward direction to the downward direction. The axial length of the outer flow guide (9) varies around the circumference thereof as a function of the distance from the flow-guiding surface of the exhaust housing to the inlet (12) of the outer flow guide so that the axial length of the outer flow guide is less than 30 % of the height of the last row blade airfoil throughout any portions of the outer flow guide in which the distance from the flow-guiding surface (10, 7) to the outer flow guide inlet (12) is less than the height of the airfoil.