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    STRUCTURAL UNIT
    122.
    发明申请
    STRUCTURAL UNIT 审中-公开

    公开(公告)号：US20190203850A1

    公开(公告)日：2019-07-04

    申请号：US16314161

    申请日：2017-06-13

    Applicant: GRUNDFOS HOLDING A/S

    Inventor： Ole HANSEN ,  Søren Søgaard JENSEN

    IPC: F16K31/60 ,  F16K5/04 ,  F24H9/20

    CPC classification number: F16K31/602 ,  F16K5/0442 ,  F24H9/06 ,  F24H9/2007

    Abstract: A construction unit (1, 2) forms part of a gas heater and includes a valve (9) which is actuatable by way of a stem (10). The stem (10) includes positive-fit device. The stem (10) is controllable from the outside via a tool which can be brought into engagement with the positive fit device. A detent engagement device (18, 27) holds the tool (21) in engagement with the stem (10), so that the valve is controllable without the aid of outside tools.

    Regulating pump device in water supply mains, method
    123.
    发明授权
    Regulating pump device in water supply mains, method 有权

    公开(公告)号：US10323645B2

    公开(公告)日：2019-06-18

    申请号：US15839233

    申请日：2017-12-12

    Applicant: Grundfos Holding a/s

    Inventor： Carsten Skovmose Kallesøe ,  Abdul-Sattar Hassan

    IPC: F04D15/00 ,  E03B1/00 ,  E03B7/02 ,  E03B7/07 ,  E03B1/02 ,  G05D16/20 ,  G01M3/28

    Abstract: A pump system for a water supply mains has at least one pump device, a pressure detecting sensor at the pressure side of the pump device, a flow detecting sensor of the pump device, several pressure sensor units (D) remote arranged remotely from the pump device in different part regions of the mains, and a pump control device. The control device includes a model formation module designed in each case to produce a model (A) representing pressure loss from the pressure sensor to the position of the respective pressure sensor unit (D), based on several pressure measured values of at least two pressure sensor units (D) for the at least two associated part regions. The control device is designed for regulation of the pump device based on produced models (A), as well as to a corresponding method for regulation of a pump device in a water supply mains.

    PUMP SEAL LEAKAGE DETECTION SYSTEM
    127.
    发明申请
    PUMP SEAL LEAKAGE DETECTION SYSTEM 审中-公开

    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).

    MULTI-PUMP CONTROL SYSTEM
    128.
    发明申请
    MULTI-PUMP CONTROL SYSTEM 审中-公开

    公开(公告)号：US20190017513A1

    公开(公告)日：2019-01-17

    申请号：US16034923

    申请日：2018-07-13

    Applicant: GRUNDFOS HOLDING A/S

    Inventor： Casper HILLERUP LYHNE

    IPC: F04D15/00 ,  F04D13/14 ,  F04D15/02 ,  F04D1/04 ,  G05B15/02 ,  G06F17/14

    Abstract: A multi-pump control system includes a control module, a processing module, a communication interface, and a storage module. The control module is configured to run a zero flow configuration cycle by either ramping up the speed of at least one pump in addition to a subset j of i pumps of a multi-pump system until the communication interface receives a signal change indicative of the at least one pump starting to contribute to the total flow, wherein the processing module is configured to determine an approximated pump characteristic or power consumption or ramping down the speed of at least one pump of a subset j of i pumps of a multi-pump system until the communication interface receives a signal change indicative of the at least one pump stopping to contribute to the total flow, wherein the processing module is configured to determine an approximated pump characteristic and/or power consumption.

    MODEL FORMATION MODULE FOR CREATING A MODEL FOR CONTROLLING A PRESSURE REGULATING SYSTEM OF A WATER SUPPLY NETWORK
    130.
    发明申请
    MODEL FORMATION MODULE FOR CREATING A MODEL FOR CONTROLLING A PRESSURE REGULATING SYSTEM OF A WATER SUPPLY NETWORK 审中-公开

    公开(公告)号：US20190004499A1

    公开(公告)日：2019-01-03

    申请号：US16021935

    申请日：2018-06-28

    Applicant: GRUNDFOS HOLDING A/S

    Inventor： Carsten Skovmose KALLESØE

    IPC: G05B19/416

    Abstract: A model formation module (25) is provided for creating a model for controlling a pressure regulating system (7) of a water supply network (5), wherein the water supply network (5) is equipped with one or more pressure sensors of which at least one remote pressure sensor (17a,b) is arranged remotely from the pressure regulating system (7), the model formation module (25) being configured to communicate with the at least one remote pressure sensor (17a,b). The model formation module (25) is configured to create said model without a measured, determined or estimated flow value on the basis of at least one remote pressure value determined by the at least one remote pressure sensor (17a,b) and on the basis of at least one load-dependent variable of the pressure regulating system (7), said model representing at least one pressure control curve for controlling the pressure regulating system (7).

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