公开(公告)号：WO2018034765A1

公开(公告)日：2018-02-22

申请号：PCT/US2017/042488

申请日：2017-07-18

Applicant: DRESSER-RAND COMPANY

Inventor： MOLL, Randall W. ,  FLURSCHUTZ, Daniel ,  LUCAS, George M.

IPC: F01D11/00 ,  F01D25/32

Abstract: A drainage system for a stage of a turbine. The drainage system includes at least one annular recess (148) defined in the inner surface (150) of the casing (104) of the turbine and configured to accumulate liquid therein. An axial slot (142) and a radial slot (156) are formed in a diaphragm (112) of the turbine, the axial slot (142) extending between the upstream and downstream faces (134,138) of the diaphragm. The drainage system further includes a tubular member (162) including an axially extending tubular portion (164) disposed in the axial slot (142) and a radially extending tubular portion (166) disposed in the radial slot (156). The radially extending tubular portion (166) is sized and configured to fluidly couple the at least one annular recess (148) and the axially extending tubular portion (164), such that liquid in the at least one annular recess is drained therefrom and discharged from the stage of the turbine via the axially extending tubular portion (164).

Abstract translation:

涡轮机级的排水系统。 排水系统包括至少一个环形凹槽（148），该环形凹槽限定在涡轮的壳体（104）的内表面（150）中，并构造成在其中积聚液体。 在涡轮机的隔膜（112）中形成轴向槽（142）和径向槽（156），轴向槽（142）在隔膜的上游面和下游面（134,138）之间延伸。 排水系统还包括管状构件（162），该管状构件包括设置在轴向槽（142）中的轴向延伸管状部分（164）和设置在径向槽（156）中的径向延伸管状部分（166）。 径向延伸的管状部分（166）的尺寸和结构设计成流体地连接至少一个环形凹槽（148）和轴向延伸的管状部分（164），使得至少一个环形凹槽中的液体从其排出并从 通过轴向延伸的管状部分（164）的涡轮机级。