公开(公告)号：US09500204B2

公开(公告)日：2016-11-22

申请号：US13886479

申请日：2013-05-03

Applicant: Grundfos Holding a/s

Inventor： Benny Fredslund Hansen ,  Poul Johannes Henning

IPC: F04D29/10 ,  F04D29/16 ,  F04D7/04

CPC classification number: F04D29/106 ,  F04D7/045 ,  F04D29/167

Abstract: A waste water pump includes an impeller (10) having a suction port (12) with a sealing surface (14) which annularly surrounds this and which bears on a stationary seal (18). At least one groove (28) is formed in the sealing surface (14) and to both sides extends beyond a bearing-contact region of the stationary seal (18) on the sealing surface (14). The stationary seal (18) having a first end (30) in connection with an impeller side chamber (20) and an opposite second end (32) is in connection with the suction side of the impeller (10). The pump also includes means (34) for producing turbulences arranged in the impeller side chamber (20) adjacent the seal (18).

Abstract translation: 废水泵包括具有吸入口（12）的叶轮（10），所述吸入口具有密封表面（14），所述密封表面围绕着所述密封表面（14），所述密封表面围绕着所述密封表面并固定在固定密封件上。 至少一个凹槽（28）形成在密封表面（14）中并且两侧延伸超过密封表面（14）上的固定密封件（18）的支承接触区域。 具有与叶轮侧室（20）和相对的第二端（32）连接的第一端（30）的固定密封件（18）与叶轮（10）的吸入侧连接。 泵还包括用于产生布置在邻近密封件（18）的叶轮侧室（20）中的湍流的装置（34）。

公开(公告)号：US20160238261A1

公开(公告)日：2016-08-18

申请号：US15029309

申请日：2013-10-14

Applicant: GRUNDFOS HOLDING A/S

Inventor： Casper Hillerup Lyhne

IPC: F24D19/10

Abstract: The present invention relates to a method for controlling a pump for feeding fluid (F) into a heating system (1000). The heating system has a hot fluid tank (HFT) receiving fluid from an associated fluid reservoir line (5) with an incoming fluid mass flow rate (dmcw/dt). A pump (P) receives fluid from the line, and pumps the received fluid with amass flow rate (dmc/dt). A heat exchanging unit (HX) transfers heat (Q) to the fluid (F) from a medium (R). The transferred heat (Q) is maximized by controlling the pump (P1) in response to this information indicative of the transferred heat (Q), the fluid mass flow rate delivered by the pump thereby having a minimum as a function of the incoming fluid mass flow rate (dmcw/dt) when maximizing the transferred heat. The invention provides significantly improved heat transfer to the fluid and power savings for the pump. The invention also relates to a heating system, e.g. a heat pump system.

Abstract translation: 本发明涉及一种用于控制用于将流体（F）供给到加热系统（1000）中的泵的方法。 加热系统具有从相关联的流体储存管线（5）接收流体的热流体箱（HFT），其具有进入的流体质量流量（dmcw / dt）。 泵（P）从管线接收流体，并且以积分流速（dmc / dt）泵送所接收的流体。 热交换单元（HX）从介质（R）将热（Q）传递到流体（F）。 通过响应于表示转移热量（Q）的信息控制泵（P1），转移的热量（Q）最大化，由泵输送的流体质量流量作为进入流体质量的函数具有最小值 流量（dmcw / dt）最大化转移的热量。 本发明提供了显着改进的流体传热和泵的功率节省。 本发明还涉及一种加热系统，例如， 一个热泵系统。

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。

公开(公告)号：US20160047372A1

公开(公告)日：2016-02-18

申请号：US14826631

申请日：2015-08-14

Applicant: GRUNDFOS HOLDING A/S

Inventor： Brian Kongsgaard NIELSEN ,  Carsten Skovmose KALLESØE

IPC: F04B49/06 ,  F04B49/20

Abstract: A control method for a pump assembly (10, 12) in a pneumatic or hydraulic system controls a speed (n) of the pump assembly (10, 12) in dependence on at least one variable (Dp, p, T, xp) which is detected in the system. An error signal (e) is produced from the detected variable (Dp, p, T, xp) on the basis of a sectionwise monotonic function. On the basis of the error signal, the speed (n) of the pump assembly (10, 12) is controlled.

Abstract translation: 根据至少一个变量（Dp，p，T，xp），气动或液压系统中的泵组件（10,12）的控制方法控制泵组件（10,12）的速度（n） 在系统中被检测到。 基于截面单调函数，从检测变量（Dp，p，T，xp）产生误差信号（e）。 基于误差信号，控制泵组件（10,12）的速度（n）。

公开(公告)号：US09243646B2

公开(公告)日：2016-01-26

申请号：US13723678

申请日：2012-12-21

Applicant: Grundfos Holding a/s

Inventor： Jens Vestergaard Boll

IPC: F04D29/22 ,  F04D29/62 ,  B29C65/16

CPC classification number: F04D29/2222 ,  B29C65/1635 ,  F04D29/2227 ,  F04D29/628 ,  F05D2230/234 ,  F05D2300/43 ,  F05D2300/52

Abstract: An impeller (2) for a centrifugal pump includes a first shroud having a plurality of blades (8). A second shroud is joined onto the first shroud by way of welding. Each blade (8) has an apex region (12), at which the blade contacts the second shroud. At least one of the blades (8) in a first section (20) of the apex region (12) has a weld connection to the second shroud, and in at least one second section (14) of the apex region (12) is free of a weld connection.

Abstract translation: 用于离心泵的叶轮（2）包括具有多个叶片（8）的第一护罩。 通过焊接将第二护罩连接到第一护罩上。 每个叶片（8）具有顶点区域（12），刀片在该顶点区域接触第二护罩。 顶点区域（12）的第一部分（20）中的至少一个叶片（8）具有与第二护罩的焊接连接，并且在顶点区域（12）的至少一个第二部分（14）中是 没有焊接连接。

公开(公告)号：US20150211528A1

公开(公告)日：2015-07-30

申请号：US14427359

申请日：2013-09-02

Applicant: GRUNDFOS HOLDING A/S

Inventor： Martin Byskov Skafsgaard ,  Bent Døssing

IPC: F04D15/00 ,  F04D1/00 ,  F04D13/06

CPC classification number: F04D15/0005 ,  F04D1/00 ,  F04D13/06 ,  F04D15/0016 ,  F24D3/105 ,  F24D19/1012 ,  F24D19/1024 ,  F24D19/1066 ,  Y02B30/745

Abstract: A method controls a circulation pump (1) in an installation with at least two circulation circuits (3, 4), with which the circulation pump (1) is integrated by way of a switch-over valve (2) into the one or the other circulation circuit (3 or 4) depending on the switched position. The pump (1) is activated differently depending on the switched position of the switch-over valve (2). The switch-over procedure is detected by way of determining the pressure course and/or the flow rate course in the pump (1) or an electrical variable which is dependent thereon, of the motor driving the pump, and the pump (1) is operated in another manner accordingly.

Abstract translation: 一种方法控制具有至少两个循环回路（3,4）的设备中的循环泵（1），循环泵（1）通过该循环泵（1）通过切换阀（2）与其中的一个或 其他循环电路（3或4）取决于切换位置。 根据切换阀（2）的切换位置，泵（1）的运行方式不同。 通过确定泵（1）中的压力路线和/或流量路线或依赖于其的电动变量来检测切换过程，驱动泵的电机，泵（1）是 相应地以另一种方式操作。

公开(公告)号：US20150211525A1

公开(公告)日：2015-07-30

申请号：US14367523

申请日：2012-12-20

Applicant: GRUNDFOS HOLDING A/S

Inventor： Therkel Damm ,  Søren Bøndergaard

IPC: F04D13/06 ,  F04D29/046 ,  F04D29/08 ,  F04D1/00

CPC classification number: H02K5/22 ,  F04D1/00 ,  F04D13/0606 ,  F04D13/0613 ,  F04D13/0626 ,  F04D13/0633 ,  F04D13/0686 ,  F04D13/0693 ,  F04D29/046 ,  F04D29/086 ,  F04D29/5813 ,  H02K5/04 ,  H02K5/128 ,  H02K5/1672 ,  H02K5/225 ,  H02K7/083 ,  H02K9/22 ,  H02K2205/09

Abstract: A wet-running centrifugal pump includes an electric motor (1) and a centrifugal pump (7) which is driven thereby. The electric motor (1) has a rotor (4) which is rotatably arranged within the stator (3). A canned pot (13), which carries a motor-side bearing for the rotor (4), is provided between the rotor and the stator. Moreover, a bearing plate (19) is provided, which carries a pump-side bearing for the rotor (4), wherein the bearing plate (19) is fixed on the housing side, and in the region of the pump-side bearing immerses into the canned pot. A radial seal (20) is provided between the bearing plate (19) and the canned pot (13).

Abstract translation: 湿式离心泵包括由此驱动的电动机（1）和离心泵（7）。 电动机（1）具有可旋转地配置在定子（3）内的转子（4）。 在转子和定子之间设置有用于转子（4）的电动机侧轴承的罐式罐（13）。 此外，设置有支承板（19），其承载用于转子（4）的泵侧轴承，其中支承板（19）固定在壳体侧，并且在泵侧轴承的区域中浸没 进罐头锅。 径向密封件（20）设置在支承板（19）和罐头罐（13）之间。

公开(公告)号：US20150190758A1

公开(公告)日：2015-07-09

申请号：US14420137

申请日：2013-08-07

Applicant: GRUNDFOS HOLDING A/S

Inventor： Bent Gadgaard ,  Jens Christian Jensen

IPC: B01D69/10 ,  B01D63/08

CPC classification number: B01D69/10 ,  B01D29/41 ,  B01D63/084 ,  B01D63/16 ,  B01D65/02 ,  B01D2313/14 ,  B01D2321/04

Abstract: A filter element is provided for a filter element stack. The filter element includes a carrier body (4), at least one spacer which can be subjected to throughflow and at least one filter membrane covering this. The spacer at least partly is formed by a knitted fabric of plastic threads which on one side is covered by a membrane of plastic material, to which it is fixedly connected, and forms a filter material (8) to be fastened on the carrier body (4) with a positive fit (FIG. 5).

Abstract translation: 为过滤元件堆叠提供过滤元件。 过滤元件包括载体主体（4），至少一个可经受流过的间隔件和至少一个覆盖该过滤器的过滤膜。 所述间隔件至少部分地由塑料丝线的针织物形成，所述针织织物的一侧由塑料材料的膜覆盖，所述塑料材料的膜被固定地连接到所述塑料薄膜上，并且形成要紧固在所述载体上的过滤材料（8） 4）具有正配合（图5）。

公开(公告)号：US20140342397A1

公开(公告)日：2014-11-20

申请号：US14361558

申请日：2012-12-21

Applicant: Grundfos Holding A/S

Inventor： Jens Andersen Gad ,  Heidi L. Enemark ,  Mohammad Nafi Solaiman Al-Sabi ,  Jørgen Kurtzhals

IPC: G01N21/01 ,  B01D29/60 ,  B01D39/10 ,  B01D29/66 ,  B01D29/00

CPC classification number: G01N21/01 ,  B01D29/0095 ,  B01D29/603 ,  B01D29/606 ,  B01D29/66 ,  B01D39/10 ,  G01N1/40 ,  G01N1/4077 ,  G01N2001/4094

Abstract: The invention relates to a device and a method for detecting particles, in particular parasites, in drinking water adapted to on-line application. In particular, the invention b) relates to a method for detecting parasites in water, said method comprising: Passing at least a part of the water through a filter; Applying indirect sonication with ultrasound to said filter to release parasites which have been collected in said filter without disrupting said parasites; Collecting parasites for detection; and Detecting the collected parasites. This serves to collect parasites in the filter and/or increase the concentration of parasites before the filter and/or disrupt aggregates without disrupting the parasites per se. The invention further relates to a concentration device for filter filtration concentration of particles from a volume of a fluid. The concentration device comprises an ultrasonic transducer that is configured to clean the filter.

Abstract translation: 本发明涉及用于检测适于在线应用的饮用水中的颗粒，特别是寄生虫的装置和方法。 特别地，本发明b）涉及一种用于检测水中寄生虫的方法，所述方法包括：使至少一部分水通过过滤器; 将超声波间接超声波应用于所述过滤器以释放已经收集在所述过滤器中而不破坏所述寄生虫的寄生虫; 收集寄生虫进行检测; 并检测收集的寄生虫。 这用于在过滤器中收集寄生虫和/或增加过滤器之前的寄生虫的浓度和/或破坏聚集体而不破坏寄生虫本身。 本发明还涉及一种用于从一定体积的流体过滤过滤浓缩颗粒的浓缩装置。 浓缩装置包括被配置为清洁过滤器的超声换能器。