公开(公告)号：US20130164125A1

公开(公告)日：2013-06-27

申请号：US13721243

申请日：2012-12-20

Applicant: Grundfos Holding a/s

Inventor： Steen MIKKELSEN

IPC: F04D1/00

CPC classification number: F04D29/628 ,  F04D1/066 ,  F04D29/4293

Abstract: A centrifugal pump (1) includes at least one pump stage (2) and a first housing part (3) having a suction connection (5). A second housing part (6) has a pressure connection (7). At least one intermediate housing part (10) at least in sections delimits a channel (11) leading to a pressure side of the at least one pump stage (2). The pump further includes a third housing part (20). The second housing part (6) and the at least one intermediate housing part (10) are arranged between the first and the third housing part (3, 20). The at least one intermediate housing part (10) and the second housing part (6) are configured to be arranged in at least two different positions with respect to the first and the third housing (3, 20).

Abstract translation: 离心泵（1）包括至少一个泵级（2）和具有吸入连接（5）的第一壳体部分（3）。 第二壳体部分（6）具有压力连接（7）。 至少一个中间壳体部分（10）至少部分限定通向至少一个泵级（2）的压力侧的通道（11）。 泵还包括第三壳体部分（20）。 第二壳体部分（6）和至少一个中间壳体部分（10）布置在第一和第三壳体部分（3,20）之间。 所述至少一个中间壳体部件（10）和所述第二壳体部件（6）构造成相对于所述第一壳体（3,20）至少布置在两个不同的位置。

公开(公告)号：US20190086286A1

公开(公告)日：2019-03-21

申请号：US16135419

申请日：2018-09-19

Applicant: GRUNDFOS HOLDING A/S

Inventor： Steen MIKKELSEN

IPC: G01M3/16 ,  F04B43/04 ,  F04D15/02 ,  G01M3/38 ,  G08B19/00

Abstract: A pump seal leakage detection system (8) includes a leakage piping (13) including a collector pipe (21) and an air stream pipe (23), a sensor (15) positioned at the air stream pipe (23), and an air displacement device (17) for driving an air stream through the air stream pipe (23). The collector pipe (21) includes an inlet port (25) that is connectable to a leakage centrifuge (5), and an outlet port (27) into the air stream pipe (23). The sensor (15) is configured to detect a leakage drop at the outlet port (27) of the collector pipe (21) or in the air stream pipe (23). The air displacement device (17) is configured to blow a leakage drop off the outlet port (27) of the collector pipe (21) by an air stream towards an outlet port (35) of the air stream pipe (23).

公开(公告)号：US20170159672A1

公开(公告)日：2017-06-08

申请号：US15367436

申请日：2016-12-02

Applicant: GRUNDFOS HOLDING A/S

Inventor： Steen MIKKELSEN

IPC: F04D29/42 ,  F04D29/62 ,  F04D1/06

CPC classification number: F04D29/4266 ,  F04D1/06 ,  F04D1/063 ,  F04D29/026 ,  F04D29/4293 ,  F04D29/628 ,  F05D2230/54 ,  F05D2250/51 ,  F05D2250/52 ,  F05D2300/171

Abstract: The invention relates to a multistage pump (1), including a pump body (4), at a lower end of which a base element (2) is arranged, and at an upper end of which a head element (3) is arranged. At least the base element (2) is made from sheet steel and has an inlet port (5) and an outlet port (16). The inlet port (5) and the outlet port (16) are mechanically connected to each other by a pipe (6) running through the base element (2).

公开(公告)号：US20160123329A1

公开(公告)日：2016-05-05

申请号：US14895270

申请日：2014-05-15

Applicant: GRUNDFOS HOLDING A/S

Inventor： Steen MIKKELSEN ,  Brian LUNDSTED POULSEN ,  Jens ANDERSEN GAD

IPC: F04D17/12

CPC classification number: F04D17/12 ,  F04D1/06 ,  F04D29/426 ,  F04D29/628

Abstract: A centrifugal pump (1) includes several pump stages, which are arranged axially between a head part (4) and a foot part (2). The pump stages are surrounded peripherally by an outer casing (3). An axial end of the outer casing (3) is fastened on the head part (4), and the other axial end on the foot part (2). A mechanical connection between the head part (4) and the foot part (2) is formed by the outer casing (3).

Abstract translation: 离心泵（1）包括多个泵级，其轴向布置在头部（4）和脚部（2）之间。 泵台由外壳（3）外围包围。 外壳（3）的轴向端固定在头部（4）上，另一个轴向端紧固在脚部（2）上。 头部（4）和脚部（2）之间的机械连接由外壳（3）形成。

公开(公告)号：US20160108922A1

公开(公告)日：2016-04-21

申请号：US14882750

申请日：2015-10-14

Applicant: GRUNDFOS HOLDING A/S

Inventor： Steen MIKKELSEN ,  Carl-Christian DANIELSEN

IPC: F04D17/12

CPC classification number: F04D17/12 ,  F04D1/063 ,  F04D13/021 ,  F04D29/426 ,  F04D29/628

Abstract: A multistage centrifugal pump includes a foot part (1) and a head part (7), between which several pump stages are arranged. Each of the pump stages includes an impeller (4) and a housing (5) surrounding the impeller (4). The housings (5) are arranged over one another. The housings (5) together with an outer casing (9) form an annular channel (8). The housings (5) together with an outer casing (9) are clamped via clamping bolts (11) which are fastened on the head part (7) and the foot part (1). The clamping bolts (11) are arranged within the annular channel (8).

Abstract translation: 多级离心泵包括脚部（1）和头部（7），其间布置有多个泵级。 每个泵级包括叶轮（4）和围绕叶轮（4）的壳体（5）。 壳体（5）彼此重叠。 外壳（5）与外壳（9）一起形成环形通道（8）。 壳体（5）与外壳（9）一起通过紧固在头部（7）和脚部（1）上的夹紧螺栓（11）夹紧。 夹紧螺栓（11）布置在环形通道（8）内。