Water Booster Control System and Method

• US 20170335835A1
• Filed: 06/06/2017
• Published: 11/23/2017
• Est. Priority Date: 04/12/2013
• Status: Active Grant

• Current Assignee: Pentair Flow Technologies LLC (Pentair Plc (Ireland))
• Original Assignee: Pentair Flow Technologies LLC (Pentair Plc (Ireland))
• Inventors: Mueller, Robert A.
• Granted Patent: US 10,487,813 B2
• Time in Patent Office: Days
• CPC Class Codes: F04B 17/04 using solenoids
• CPC Class Codes: F04B 49/06 Control using electricity regulating by means of floats actuating electric switches F04B49/04
• CPC Class Codes: F04B 49/08 Regulating by delivery pressure
• CPC Class Codes: F04B 49/103 Responsive to speed
• CPC Class Codes: F04B 49/106 Responsive to pumped volume

Abstract

A water booster control system designed with a controller having an algorithm that determines optimum starting parameters for one or more pumps is disclosed. The water booster control system supplies water to a location at specified operating parameters. Water enters a suction manifold, travels through pipes, and into the pumps. The pumps accelerate the water to the desired pressure and/or flow rate and discharge the water through pipes and out of a discharge manifold. One or more of the components of the water booster control system are monitored during use, and data regarding the parameters is displayed locally and/or remotely. Alarms are specified relating to one or more of the operating parameters and the alarm conditions may be displayed locally and/or remotely. A user may make modifications to the system locally and/or remotely through a screen and/or through a remote device using a smart phone application.

Claims

1-7. -7. (canceled)

21. A water booster control system, the system comprising:

a plurality of pumps in communication with respective drive units;

a user interface; and

a controller in communication with the pump and the drive unit, the controller designed to control at least one operating parameter of the pump, wherein the controller further includes an algorithm stored thereon that is designed to determine the at least one operating parameter of the pump, and the algorithm performing the steps of;

determining a set point defined by at least one of a system pressure and a system flow for which the water control booster system demands;

capturing and storing a minimum speed for each pump;

capturing and storing a maximum speed for each pump initiating the one or more additional pumps at a pre-determined time/frequency rate to meet the set point; and

automatically adjusting the at least one operating parameter when the set point is not met.

22. The water control booster system of claim 21, wherein the at least one operating parameter is one of a pump sequence mode, a pump rotation, a lead pump, and a lag pump.

23. The water control booster system of claim 21, wherein the minimum speed is the speed at which the pump produces flow and increases pressure above an incoming pressure of the water control booster system.

24. The water control booster system of claim 21, wherein the maximum speed is the speed at which the pump can operate without allowing the drive unit to experience an overcurrent.

25. The water control booster system of claim 21, wherein the water booster control system is further designed to allow a user to enter at least one customizable alarm threshold through the interface that is transmitted to a user remotely when the threshold is breached.

26. The water booster control system of claim 25, wherein the at least one customizable alarm threshold includes one of an alarm indicating a discharge pressure of water exiting the water booster control system, an alarm indicating a suction pressure, an alarm indicating a status of the one or more drive units, and an alarm indicating a fault condition has been triggered by at least one of a discharge pressure, the suction pressure, and a flow rate.

27. The water control booster system of claim 21, further comprising a network in communication with the controller and a remote device, wherein the remote device is configured to receive the breached alarm threshold.

28. The water control booster system of claim 27, wherein the remote device includes at least one of a networked workstation, a laptop, a smart phone, and a handheld tablet.

29. The water control booster system of claim 21, wherein the controller is a programmable logic controller (PLC) that includes a processor configured to facilitate operation of the water booster control system, the PLC having stored thereon a proportional integral derivative (PID) loop configured to control the at least one operating parameter of the pump.

30. The water control booster system of claim 29, wherein the PID is further configured to calculate a difference between a set process variable and a desired set point, and calculate an error value, based on the calculated difference, to adjust at least one input parameter and operational parameters to minimize the error value.

31. The water booster system of claim 21, further including an auto-detect feature that automatically adjusts at least one of a pump start time, a pump stop time, or another parameter to maximize efficiency of the water booster system.

32. The water booster system of claim 31, wherein the start and stop times are automatically adjusted to meet the changing conditions of the site in which the water booster system is installed.

33. A method of operating pumps in a water booster control system, comprising the step of:

calculating one or more operating parameters of one or more pumps using an algorithm, the algorithm utilizing a proportional integral derivative (PID) loop that determines a difference between a set process variable and a desired set point;

calculating an error value that is based on the difference between the set process variable and the desired set point;

utilizing the error value to adjust at least one of input parameters and operational parameters of the water booster control system to reduce the error value and tune the at least one of the input parameters and the operational parameters.

34. The method of operating pumps of claim 33, wherein the PID loop includes a plurality of constant variables, the plurality of constant variables including at least one of a proportional value, an integral value, and a derivative value.

35. The method of operating pumps of claim 34, wherein the plurality of constant variables correspond to at least one of a present error calculation, a past error calculation, and a future error calculation.