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：US20210215158A1

公开(公告)日：2021-07-15

申请号：US17054419

申请日：2019-05-02

Applicant: GRUNDFOS HOLDING A/S

Inventor： Christian SCHOU ,  Christian Robert DAHL JACOBSEN ,  Carsten Skovmose KALLESØE

IPC: F04D15/00 ,  F04D13/06 ,  F04D13/12

Abstract: A monitoring module (13) identifies an operating scenario in a wastewater pumping station, with at least one pump (9a, 9b) arranged for pumping wastewater out of a wastewater pit (1) into a pipe (11). The monitoring module (13) is configured to process at least one load-dependent pump variable indicative of how the at least one pump (9a, 9b) operates and at least one model-based pipe parameter indicative of how the wastewater flows through the pipe (11) and/or the at least one pump (9a, 9b). The monitoring module is configured to identify an operating scenario in the wastewater pumping station by selecting an operating scenario from a group of predefined operating scenarios dependent on at least one first criterion that is based on the at least one load-dependent pump variable and at least one second criterion that is based on the at least one model-based pipe parameter.

公开(公告)号：US20170328579A1

公开(公告)日：2017-11-16

申请号：US15532278

申请日：2015-03-10

Applicant: Grundfos Holding A/S

Inventor： Carsten Skovmose KALLESØE ,  René Stig BERGQVIST ,  Lars Sund MORTENSEN

IPC: F24D19/10 ,  F24D3/10 ,  F04D15/00

CPC classification number: F24D19/1012 ,  F04D13/0686 ,  F04D15/0066 ,  F04D15/0088 ,  F24D3/10 ,  F24D19/1015 ,  F24D19/1024 ,  F24D19/1048 ,  G08B5/228 ,  H04Q9/00 ,  H04Q2209/43 ,  Y02B30/745

Abstract: A method of balancing a heating system with a flow system, including a supply flow line (60) and a return flow line (70), a heat source (55) and a pump (10) hydraulic lines (L1-Ln), some having a heating element (H1-Hn) with a balancing valve (V1-Vn). The method includes: carrying out one or more measurements by opening one hydraulic line only and determining a flow rate through the pump and a pressure difference across the pump, establishing a hydraulic model based on the determined flow rate and pressure difference from at least two measurements from step, and at least one additional measurement for at least two hydraulic lines, specifying a desired flow rate for each of the hydraulic lines, and adjusting one or more of the dedicated balancing valves in order to meet the desired flow rate for each of the hydraulic lines by using the hydraulic model.

公开(公告)号：US20150337876A1

公开(公告)日：2015-11-26

申请号：US14719874

申请日：2015-05-22

Applicant: GRUNDFOS HOLDING A/S

Inventor： Niels MOGENSEN ,  Carsten Skovmose KALLESØE

IPC: F15B21/00

CPC classification number: F15B21/00 ,  F04D13/12 ,  F04D15/0066 ,  F04D15/0281 ,  G05B13/021 ,  Y10T137/0318 ,  Y10T137/86131

Abstract: The invention relates to a pump control method for the control of the operation of a pump system with at least two pump assemblies (2) which are arranged parallel or in series to one another. The method includes determining a specific total power ES of the complete pump system which defines a total power in relation to a hydraulic total load of the complete pump system, determining a specific individual power EP,n of each pump assembly (2) which defines an individual power in relation to the individual hydraulic load of the respective pump assembly (2), computing an individual load factor Egain,n for each pump assembly (2) according to the equation E gain , n = E S E P , n and adapting the individual hydraulic load (Qn; Hn) of the pump assemblies (2) in dependence on a desired hydraulic load (QD; HD) as well as on the individual load factor Egain,n of the respective pump assembly (2).

Abstract translation: 本发明涉及一种用于控制泵系统的操作的泵控制方法，所述泵系统具有平行或彼此串联布置的至少两个泵组件（2）。 该方法包括确定整个泵系统的特定总功率ES，其定义相对于整个泵系统的液压总负载的总功率，确定每个泵组件（2）的特定个体功率EP，n，其定义为 相应于相应泵组件（2）的单个液压负载的单独功率，根据等式E gain，n = ESEP，n计算每个泵组件（2）的单独负载系数Egain，n，并且使单独的液压 根据所需的液压负载（QD; HD）以及相应的泵组件（2）的单个负载系数Egain，n，泵组件（2）的负载（Qn; Hn）。