公开(公告)号：EP2697516A1

公开(公告)日：2014-02-19

申请号：EP12771057.2

申请日：2012-04-13

Applicant: FLSmidth A/S

Inventor： FRATER, John ,  MCGAHEE, Ricky

IPC: F04D29/22

Abstract: A centrifugal pump for a slurry combines design changes with respect to conventional configurations that produce quasi-laminar flow and materially extend the life of the casing. The cutwater clearance of the casing is increased to a range of 0.20 to 0.25 times the diameter of the impeller. The casing includes a redesigned removable annular liner with a diameter increased to at least 1.15 times the diameter of the impeller. The pump preferably also has an axially adjustable wear ring with a diameter increased such that it extends by at least 10% over the diameter of the area of interface between the wear ring and the impeller.

Abstract translation: 用于浆料的离心泵将设计变化与产生准层流的常规构造相结合，并且材料延长了套管的使用寿命。 外壳的切水间隙增加到叶轮直径的0.20至0.25倍。 壳体包括重新设计的可移除的环形衬套，其直径增加到叶轮直径的至少1.15倍。 泵优选地还具有可轴向调节的耐磨环，其直径增加，使得其在耐磨环和叶轮之间的界面面积的直径上延伸至少10％。

公开(公告)号：EP2697516B1

公开(公告)日：2020-07-29

申请号：EP12771057.2

申请日：2012-04-13

Applicant: FLSmidth A/S

Inventor： FRATER, John ,  MCGAHEE, Ricky

IPC: F04D7/04 ,  F04D29/42 ,  F04D29/62

公开(公告)号：WO2012142386A1

公开(公告)日：2012-10-18

申请号：PCT/US2012/033480

申请日：2012-04-13

Applicant: FLSMIDTH A/S ,  FRATER, John ,  MCGAHEE, Ricky

Inventor： FRATER, John ,  MCGAHEE, Ricky

IPC: F04D29/22

CPC classification number: F04D1/00 ,  F04D7/04 ,  F04D29/4286 ,  F04D29/622

Abstract: A centrifugal pump for a slurry combines design changes with respect to conventional configurations that produce quasi-laminar flow and materially extend the life of the casing. The cutwater clearance of the casing is increased to a range of 0.20 to 0.25 times the diameter of the impeller. The casing includes a redesigned removable annular liner with a diameter increased to at least 1.15 times the diameter of the impeller. The pump preferably also has an axially adjustable wear ring with a diameter increased such that it extends by at least 10% over the diameter of the area of interface between the wear ring and the impeller.

Abstract translation: 用于浆料的离心泵将设计变化与产生准层流的常规构型相结合，并且材料延长了套管的使用寿命。 壳体的切割水间隙增加到叶轮直径的0.20至0.25倍的范围。 壳体包括重新设计的可移除的环形衬套，其直径增加到叶轮直径的至少1.15倍。 泵优选地还具有可轴向调节的耐磨环，其直径增加，使得其在耐磨环和叶轮之间的界面区域的直径上延伸至少10％。