公开(公告)号：US20170182439A1

公开(公告)日：2017-06-29

申请号：US15392371

申请日：2016-12-28

Applicant: GRUNDFOS HOLDING A/S

Inventor： Dominik DOMINIAK ,  Rikke Eriksen GISSEL ,  Jacob Appelt Vibe SVENDSEN ,  Xing ZHENG ,  Jan Carøe AARESTRUP

IPC: B01D37/04 ,  B01D29/66 ,  B01D37/03

CPC classification number: B01D37/043 ,  B01D29/66 ,  B01D37/03 ,  B01D61/16 ,  B01D65/02 ,  B01D2311/04 ,  B01D2311/2642 ,  B01D2321/04 ,  B01D2321/20

Abstract: a filtering method, with which a fluid to be filtered is led through a filter (4), the filter (4) is back-flushed at regular time intervals and a pre-treatment agent is added to the fluid at the entry side of the filter. A process variable which describes the efficiency of the filtration is continuously computed during the filtration, and a metering quantity of the pre-treatment agent is reset on the basis of the values for the process variable or a characteristic values derived from this.

公开(公告)号：US20240004377A1

公开(公告)日：2024-01-04

申请号：US18037366

申请日：2021-11-29

Applicant: GRUNDFOS HOLDING A/S

Inventor： Carsten Skovmose KALLESØE ,  Abdul-Sattar HASSAN ,  Jan Carøe AARESTRUP

IPC: G05B23/02

CPC classification number: G05B23/0221 ,  E03F5/22

Abstract: A pump monitoring system associates a current operating state of a pump system including n≥1 pumps with one or more of k≥1 fault scenarios. The pump monitoring system includes an interface module for receiving at least one set of m≥2 operational values from the pump system. The m operational values define a current operational point in an m-dimensional operating space. A processing module processes operational values received by the interface module and consults given or determined model parameters describing a non-faulty model pump characteristic in the m-dimensional operating space and determines a k-dimensional decision vector with k decision vector components indicative of a deviation between an actual differential volume in the m-dimensional operating space based on distances between the m operational values and the non-faulty model pump characteristic, and a modeled differential volume in the m-dimensional operating space for the respective fault scenario.

公开(公告)号：US20210291118A1

公开(公告)日：2021-09-23

申请号：US17204420

申请日：2021-03-17

Applicant: GRUNDFOS HOLDING A/S

Inventor： Dominik Marek DOMINIAK ,  Jan Carøe AARESTRUP

IPC: B01D65/02

Abstract: A cleaning-in-place method includes terminating a cleaning-in-place cycle if a deviation of a currently detected value of a backwash hydraulic parameter (P) from a value of the same backwash hydraulic parameter (P) detected in a previous backwash cycle (32, 34, 36 38) in the same cleaning-in-place cycle exceeds a predefined deviation limit value. A filter device is provided having a control device for carrying out a respective cleaning-in-place method.

公开(公告)号：US20190331118A1

公开(公告)日：2019-10-31

申请号：US16471978

申请日：2017-12-15

Applicant: GRUNDFOS HOLDING A/S

Inventor： Jan Carøe AARESTRUP ,  Anders Silkær MIKKELSEN ,  Carsten CHRISTENSEN ,  Simon MØLGAARD MØLLER ,  Rasmus Ørndrup NIELSEN

IPC: F04D15/00 ,  F04D13/06 ,  G01D1/12 ,  G01D3/024

Abstract: An electromotorically driven pump (1) includes control electronics (6) for the connection of at least one sensor (5). The control electronics (6) are configured to detect values of an output signal (9) of the connected sensor (5) continuously or in temporal intervals, and after completion of a predefined time, to automatically set a measurement range of the sensor (5) based on the detected values.

公开(公告)号：US20170248142A1

公开(公告)日：2017-08-31

申请号：US15519685

申请日：2014-10-15

Applicant: GRUNDFOS HOLDING A/S

Inventor： Flemming MUNK ,  Casper Lyngesen MOGENSEN ,  Jan Carøe AARESTRUP

IPC: F04D15/00 ,  F04D29/043 ,  G01M99/00 ,  F04D13/06

CPC classification number: F04D15/0088 ,  F04D13/06 ,  F04D15/0077 ,  F04D29/043 ,  F04D29/046 ,  F04D29/669 ,  G01H17/00 ,  G01M99/008

Abstract: A method for detecting faults or operational parameters in a pump assembly by use of a handheld communication device is described. The pump assembly includes an electric motor and a pump, wherein the pump assembly or electric motor has at least one rotating shaft The method comprises the steps of: a) contactless measuring a sound signal emanating from the pump assembly by use of a microphone connected to or implemented in the handheld communication device, b) processing the measured sound signal, and c) recognising one or more sound emanating condition including any possible faults by way of the processed sound signal.

公开(公告)号：US20220186733A1

公开(公告)日：2022-06-16

申请号：US17550396

申请日：2021-12-14

Applicant: GRUNDFOS HOLDING A/S

Inventor： Martin Byskov SKAFSGAARD ,  Susanne Hamann GADE ,  Keld Benner VALBJØRN ,  Jan Carøe AARESTRUP

IPC: F04D15/00 ,  H02P7/29 ,  F04D13/06

Abstract: A pump assembly with a pump unit comprising an impeller for pumping fluid, an electric motor for driving the impeller, a control module for controlling the speed of the electric motor in a control mode, and an interface for receiving a pulse width modulated (PWM) control signal with a duty cycle indicative of the speed of the electric motor. The control module is configured to interpret the PWM control signal at start-up of the electric motor per default in a configuration mode as a configuration bit sequence based on the duty cycle of the PWM control signal during a pre-determined configuration window.

公开(公告)号：US20170241422A1

公开(公告)日：2017-08-24

申请号：US15519713

申请日：2015-10-14

Applicant: GRUNDFOS HOLDING A/S

Inventor： Flemming MUNK ,  Casper Lyngesen MOGENSEN ,  Jan Carøe AARESTRUP

IPC: F04D15/00 ,  F04D13/06 ,  G01H17/00

CPC classification number: F04D15/0088 ,  F04D13/06 ,  F04D15/0077 ,  F04D29/043 ,  F04D29/046 ,  F04D29/669 ,  F05D2260/80 ,  G01H17/00 ,  G01M99/008

Abstract: A method for detecting faults or operational parameters in a pump assembly by use of a handheld communication device is described. The pump assembly includes an electric motor and a pump, wherein the pump assembly or electric motor has at least one rotating shaft The method comprises the steps of: a) measuring a sound signal emanating from the pump assembly by use of a microphone connected to or implemented in the handheld communication device, b) processing the measured sound signal, and c) recognising one or more sound emanating condition including any possible faults by way of the processed sound signal. The app automatically repeats at least steps b) and c) for a plurality of preselected frequency ranges in order to detect different fault states.

公开(公告)号：US20150093253A1

公开(公告)日：2015-04-02

申请号：US14501576

申请日：2014-09-30

Applicant: GRUNDFOS HOLDING A/S

Inventor： Kim Hulegaard JENSEN ,  Lars Sund MORTENSEN ,  Jan Carøe AARESTRUP

IPC: F04D15/00 ,  F04D1/00

CPC classification number: F04D15/0077 ,  F04D15/0066 ,  H02H3/006 ,  H02H7/0833 ,  H02H7/0852 ,  H02P29/032

Abstract: A method for controlling the power limit of a pump device includes controlling the power limit of the pump device on the basis of a pump media temperature Tm and an ambient temperature Ta measured inside a control box of the pump device. A pump device, in particular a centrifugal pump, is driven by a motor. The motor is controlled by a control box wherein temperature sensors for measuring a media temperature Tm and an ambient temperature Ta are arranged in the control box so as to control the power limit of the pump device depending on the measured media temperature Tm and an ambient temperature Ta.

Abstract translation: 一种用于控制泵装置的功率极限的方法包括：根据在泵装置的控制箱内测量的泵介质温度Tm和测量的环境温度Ta来控制泵装置的功率极限。 泵装置，特别是离心泵，由电动机驱动。 电动机由控制箱控制，其中用于测量介质温度Tm和环境温度Ta的温度传感器被布置在控制箱中，以便根据测量的介质温度Tm和环境温度来控制泵装置的功率极限 Ta

公开(公告)号：US20240024821A1

公开(公告)日：2024-01-25

申请号：US18257355

申请日：2021-12-20

Applicant: GRUNDFOS HOLDING A/S

Inventor： Dominik Marek DOMINIAK ,  Loreen Ople VILLACORTE ,  Victor Augusto YANGALI-QUINTANILLA ,  Sébastien D'ANTONIO ,  Simon HANSEN ,  Jan Carøe AARESTRUP

IPC: B01D61/12 ,  B01D65/02

CPC classification number: B01D61/12 ,  B01D65/02 ,  B01D2313/903 ,  B01D2313/18 ,  B01D2313/243 ,  B01D2315/10

Abstract: A control method uses in a membrane filter system operated in iterative filtration cycles, the cycles including a production period and a following flushing. A setting of a crossflow on the entrance side (4) of a membrane (2) in the production period is controlled such that the energy consumption (E) per filtration cycle reaches an optimum. A corresponding membrane filter system is provided.

公开(公告)号：US20170175749A1

公开(公告)日：2017-06-22

申请号：US15384603

申请日：2016-12-20

Applicant: GRUNDFOS HOLDING A/S

Inventor： Erik Bundesen SVARRE ,  Jan Carøe AARESTRUP ,  Peter ELVEKJÆR ,  Flemming MUNK

IPC: F04D27/00 ,  F04D15/00 ,  F04D17/08 ,  F01D5/02 ,  F04D29/053 ,  F04D29/22 ,  F04D29/28 ,  F04D1/06 ,  F04D29/043

Abstract: A centrifugal pump includes at least one pump stage (14). This pump stage (14) includes an impeller (18) which is mounted rotationally fixed on a pump shaft (26). Apart from the pump stage (14), the centrifugal pump is equipped with a turbine wheel (32) which is arranged on the pump shaft (26), without a movement coupling to the pump shaft, in the delivery flow of the centrifugal pump. This turbine wheel (32) forms a transducer of a flow measuring device. A blading of the turbine wheel (32) is such that a torque exerted by the delivery flow onto the turbine wheel (32′) is directed counter to a torque exerted via the pump shaft (26) onto the impeller (18).