公开(公告)号：WO2017190250A1

公开(公告)日：2017-11-09

申请号：PCT/CA2017/050548

申请日：2017-05-05

Applicant: OPTIMAL PUMP SOLUTIONS INC.

Inventor： PATTON, Christopher Sean

IPC: F04D29/70 ,  F16J15/40 ,  F16J15/44

Abstract: A throat bushing (1) for use in a seal chamber (27) or stuffing box (57) of rotary fluid equipment. The throat bushing (1) comprises at least one arced groove (6) being open to, and extending along, an inner bore (5) of the throat bushing; and wherein the arced groove (6) has a substantially semi-helical path leading from an opening (9) of the arced groove (6) to an exit (10) of the arced groove (6). The arced groove (6) design may reduce flushing requirements and/or may extend the amount of time between repairs; as well as facilitate the evacuation of particulate matter and/or air trapped in the pump seal chamber (27) or stuffing box (57).

Abstract translation: 用于旋转流体设备的密封室（27）或填料箱（57）中的喉管衬套（1）。 所述喉管衬套（1）包括至少一个弧形槽（6），所述弧形槽向所述喉管衬套的内孔（5）打开并且沿所述内孔延伸; 并且其中所述弧形凹槽（6）具有从所述弧形凹槽（6）的开口（9）通向所述弧形凹槽（6）的出口（10）的基本上半螺旋形的路径。 弧形凹槽（6）设计可以减少冲洗要求和/或可以延长修理之间的时间量; 并且便于排出被密封在泵密封室（27）或填料箱（57）中的颗粒物质和/或空气。