US 7,734,441 B2Granted

Method and device for measuring and controlling the amount of flow/volume of liquid pumped/transferred by an electro-pump

OwnerMohsen Taravat, Amin Moazedi +1inventors

InventorsMohsen Taravat, Amin Moazedi, Hossein Nazarboland Jahromi

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Abstract

Disclosed is a method and system for measuring and controlling an amount of flow and volume of liquid fluid and/or electrical energy consumed by an electro-pump. The method and system obtains a plurality of values for electrical parameters of the electro-pump including voltage value, currents value and active/reactive energy value; calculates the plurality values; and determines and controls the amount of instant flow and volume of said liquid fluid based on said calculated values. The system/method gathers these two measuring and controlling features (i.e. measuring and controlling the volume of liquid and amount of energy) in one casing, thereby, where applicable, provides a secure reference for policy making of both two parameters at the same time (e.g. for underground water resources).

Claims10

Dependent claims

A method for measuring and controlling amounts of liquid and/or electrical energy consumption consumed by an electro pump by a controller, wherein said amount of liquid consumption comprises of flow and/or volume of said liquid that is pumped/transferred by said electro pump, wherein said method comprises:

continuously measuring currents and voltages of said electro-pump;
continuously calculating, and updating active and reactive energies, instant electrical power, instant power factor and the frequency of said voltages;
continuously calculating, and updating the amount of said liquid consumption by said controller wherein said Calculating and updating comprises steps of:
taking a flow-power curve of said electro-pump as a first input data;
taking an operational condition of the electro-pump as second input data wherein said second input data comprises of instant flow and instant consumed electrical power;
calibrating the Flow-Power curve according to said operational condition and obtaining a calibrated flow power curve;
obtaining the amount of flow from the calibrated flow power curve of said electro pump by locating the instant power on said calibrated flow power curve;
continuously calculating the volume of pumped/transferred liquid by taking time integral of the amount of flow;
continuously monitoring, updating, displaying and/or recording the amount of said measured currents and voltages of said electro-pump;
continuously monitoring, updating, displaying and/or recording the amount of said calculated active and reactive energies, instant electrical power, instant power factor and the frequency of said voltages;
continuously monitoring, updating displaying and/or recording the amount of said energy consumption consumed by said electro pump as an updated amount of electrical energy consumption;
and
continuously monitoring, updating displaying and/or recording the amount of said liquid consumption as an updated amount of liquid consumption.

10 more elements

A system for measuring and controlling amount of liquid and/or electrical energy consumption consumed by an electro pump, wherein said amount of liquid consumption comprises of flow and/or volume of said liquid that is pumped/transferred by said electro pump, wherein said system comprises:

means for continuously measuring currents and voltages of said electro-pump;
means for continuously calculating, and updating active and reactive energies, instant electrical power, instant power factor and frequency of said voltages;
means for continuously calculating, and updating the amount of said liquid consumption wherein said calculating and updating comprises steps of:
means for taking a flow-power curve of said electro-pump as a first input data;
means for taking an operational condition of the electro-pump as second input data wherein said second input data comprises of instant flow and instant consumed electrical power;
means for calibrating the Flow-Power curve according to said operational condition and obtaining a calibrated flow power curve;
means for obtaining the amount of flow from the calibrated flow power curve of said electro pump by locating the instant power on said calibrated flow power curve;
means for continuously calculating the volume of pumped/transferred liquid by taking time integral of the amount of flow;
means for continuously monitoring, updating, displaying and/or recording the amount of said measured currents and voltages of said electro-pump;
means for continuously monitoring, updating, displaying and/or recording the amount of said calculated active and reactive energies, instant electrical power, instant power factor and the frequency of said voltages;
means for continuously monitoring, updating displaying and/or recording the amount of said energy consumption consumed by said electro pump as an updated amount of electrical energy consumption;
and
means for continuously monitoring, updating displaying and/or recording the amount of said liquid consumption as an updated amount of liquid consumption.

10 more elements

Dependencies are inferred from the claim text.

Facts

Application: 12/241,085Filed 30 Sep 2008
Published: US 2009/0099700 A116 Apr 2009
Granted: 8 Jun 2010
Term ends: Not estimatedThe source records don’t support an estimate.

Classification4 codes

G05D 7/0676
Characterised by the type of regulator means: by action on flow sources
G06Q 50/06
Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g.…:…
G05D
Systems for controlling or regulating non-electric variables
G06Q
Information and communication technology [ict] specially adapted for administrative, commercial, financial, managerial