公开(公告)号：US20130058767A1

公开(公告)日：2013-03-07

申请号：US13668554

申请日：2012-11-05

申请人： Sulzer Pumpen AG

发明人： Jorma Tapani LEHTONEN ,  Heikki MANNINEN

IPC分类号： F01D11/00

CPC分类号： F04D29/146 ,  F04D29/106

摘要： The present invention relates to a centrifugal pump, a shaft sleeve and a stationary seal member for a static seal used in connection with a dynamic sealing of a centrifugal pump. The invention relates to a static seal the clearance of which may be adjusted while the pump is running. Especially the invention discusses the novel structure of such a static seal. A characterizing feature of a centrifugal pump comprising a pump housing (8), a shaft (6), an impeller attached on the shaft, a dynamic sealing (4) having a sealing chamber (12) and a repeller (14) mounted on the shaft (6), and a static seal (2) arranged in a shaft space (42) behind the dynamic sealing (4) as seen from the direction of the impeller, said static seal (54, 54′) comprising an axially adjustable seal cover (56) including a stationary seal member; and a rotary seal member arranged on the shaft (6), is that the seal cover (56) is provided with a flexible seal member (77, 92), whose counter member (68) is arranged in connection with a shaft sleeve (60) arranged on the shaft (6).

摘要翻译： 本发明涉及离心泵，轴套和用于与离心泵的动态密封结合使用的静态密封件的固定密封件。 本发明涉及一种在泵运行时可以调节其间隙的静密封。 特别地，本发明讨论了这种静态密封件的新颖结构。 一种离心泵的特征特征，包括泵壳体（8），轴（6），安装在轴上的叶轮，具有密封室（12）和排斥器（14）的动态密封件（4） 轴（6），以及从叶轮方向看，布置在动态密封件（4）后面的轴空间（42）中的静态密封件（2），所述静密封件（54,54'）包括可轴向调节的密封 盖（56）包括固定密封构件; 以及设置在所述轴（6）上的旋转密封构件，所述密封盖（56）设置有柔性密封构件（77,92），所述柔性密封构件（77,92）的相对构件（68）与轴套（60） ）布置在轴（6）上。