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公开(公告)号：US20180066651A1
公开(公告)日：2018-03-08
申请号：US15550991
申请日：2016-02-15
Applicant: Pulsar Process Measurement Limited
Inventor： Keith Victor Beard , Sang Tran
IPC: F04B51/00 , F04B23/02 , G05B19/042
CPC classification number: F04B51/00 , E03F5/22 , F04B23/02 , F04B23/021 , F04B49/02 , F04B49/065 , F04D15/0088 , G05B19/042 , G05B19/0428 , G05B23/0283 , G05B2219/24015
Abstract: A system comprising: a reservoir (14) for holding a liquid (1); a pump (20) arranged to pump the liquid (1) out of the reservoir (14) to a system outlet (24) or into the reservoir (14) from a system inlet; a pressure sensor (34) arranged between the reservoir (14) and the system outlet (24) or between the system inlet and the reservoir (14), the pressure sensor (34) configured to measure the discharge pressure (Pd) of the pump (20) and to generate discharge pressure data; a level sensor (26) configured to detect the level (1) of the liquid (1) in the reservoir (14) and to generate level data; a power monitor (28) configured to monitor the power consumed (p) by the pump (20) and to generate power data; a volume monitor configured to monitor the volume (V) of liquid (1) pumped by the pump (20) and to generate volume data; and a controller (30) configured to: receive the power data, the volume data, the discharge pressure data and the level data; process the discharge pressure data to determine a discharge head (Hd) of the pump (20); process the level data to determine a static head (Hs) of the pump (20); process the discharge head (Hd) and the static head (Hs) to determine a total dynamic head (TDH) of the pump (20); and process the total dynamic head (TDH), the volume data and the power data to determine a normalised pumping station efficiency (nSPE).
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公开(公告)号：US20180045194A1
公开(公告)日：2018-02-15
申请号：US15550918
申请日：2016-02-15
Applicant: Pulsar Process Measurement Limited
Inventor： Keith Victor Beard , Sang Tran
CPC classification number: F04B49/02 , E03F5/22 , F04B17/03 , F04B49/065 , F04B2203/0201 , F04B2205/02 , F04D15/0088 , F05D2260/80 , F05D2270/335 , G05B23/0283
Abstract: A system comprising: a reservoir (14) for holding a liquid; a pump (20) arranged to pump the liquid out of the reservoir (14) or into the reservoir (14); a level sensor (26) configured to detect the level of the liquid in the reservoir (14) and to generate level data; a current monitor (28) configured to monitor the current drawn by the pump (20) and to generate current data; and a controller (30) configured to: receive level data and determine the static head from the level data, and generate head data from the static head; receive first current and head data corresponding to the current drawn by the pump (20) as a function of the static head for a first period of operation of the pump (20); receive second current and head data corresponding to the current drawn by the pump (20) as a function of the static head for a second period of operation of the pump (20), wherein the second current and head data is recorded when the liquid in the reservoir (14) is between a first liquid level and a second liquid level, and wherein the first current and head data is recorded when the liquid in the reservoir (14) is between at least the first liquid level and the second liquid level; and process the first current and head data and the second current and head data to determine first difference data (PPI) representing the difference between the current drawn between the first liquid level and the second liquid level in the first period of operation and the second period of operation, the first difference data providing a pump performance indicator giving an indication of the condition of the pump.
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公开(公告)号：US10927829B2
公开(公告)日：2021-02-23
申请号：US15550918
申请日：2016-02-15
Applicant: Pulsar Process Measurement Limited
Inventor： Keith Victor Beard , Sang Tran
Abstract: A system comprising: a reservoir (14) for holding a liquid; a pump (20) arranged to pump the liquid out of the reservoir (14) or into the reservoir (14); a level sensor (26) configured to detect the level of the liquid in the reservoir (14) and to generate level data; a current monitor (28) configured to monitor the current drawn by the pump (20) and to generate current data; and a controller (30) configured to: receive level data and determine the static head from the level data, and generate head data from the static head; receive first current and head data corresponding to the current drawn by the pump (20) as a function of the static head for a first period of operation of the pump (20); receive second current and head data corresponding to the current drawn by the pump (20) as a function of the static head for a second period of operation of the pump (20), wherein the second current and head data is recorded when the liquid in the reservoir (14) is between a first liquid level and a second liquid level, and wherein the first current and head data is recorded when the liquid in the reservoir (14) is between at least the first liquid level and the second liquid level; and process the first current and head data and the second current and head data to determine first difference data (PPI) representing the difference between the current drawn between the first liquid level and the second liquid level in the first period of operation and the second period of operation, the first difference data providing a pump performance indicator giving an indication of the condition of the pump.
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