Systems and methods of controlling pressure maintenance pumps and data logging pump operations

• US 10,240,593 B2
• Filed: 03/02/2012
• Issued: 03/26/2019
• Est. Priority Date: 03/04/2011
• Status: Active Grant

• Current Assignee: ASCO Power Technologies LP (Schneider Electric SE)
• Original Assignee: ASCO Power Technologies LP (Schneider Electric SE)
• Inventors: Stephens, Douglas A.
• Primary Examiner(s): Lettman, Bryan
• Application Number:
  US13/410,574
• Publication Number:
  US 20120230846A1
• Time in Patent Office: 2,580 Days
• CPC Class Codes: A62C 3/00 Fire prevention, containment or extinguishing specially adapted for particular objects or places in oil wells E21B29/08, A62C35/00; in mines or tunnels E21F5/00 ; for nuclear reactors G21C9/04
• CPC Class Codes: A62C 35/58 Pipe-line systems
• CPC Class Codes: A62C 35/60 wet, i.e. containing extinguishing material even when not in use
• CPC Class Codes: A62C 37/04 with electrically-controlled release
• CPC Class Codes: A62C 37/50 Testing or indicating devices for determining the state of readiness of the equipment
• CPC Class Codes: F04B 2205/03 Pressure in the compression chamber
• CPC Class Codes: F04B 2205/05 Pressure after the pump outlet
• CPC Class Codes: F04B 23/04 Combinations of two or more pumps
• CPC Class Codes: F04B 41/06 Combinations of two or more pumps
• CPC Class Codes: F04B 49/022 by means of pressure
• CPC Class Codes: F04B 49/065 and making use of computers
• CPC Class Codes: F04B 49/08 Regulating by delivery pressure
• CPC Class Codes: F04B 51/00 Testing machines, pumps, or pumping installations

Abstract

Controlling the operation of a jockey pump in a fire pump system including a jockey pump controller which includes an electronic circuit board configured to receive a signal indicating a pressure value, and compares the pressure value to a threshold for initiating operation of the jockey pump. The jockey pump controller may further include memory configured to store event statistics indicating information regarding past operation of the jockey pump.

Claims

1. A maintenance pump system in a fire pump control room, comprising:

a maintenance pump controller residing within the fire pump control room and for controlling an operation of a maintenance pump, wherein the maintenance pump controller comprises;

an electronic circuit board comprising a programmable microprocessor, the microprocessor configured

to receive a signal indicating a pressure value,

to compare the pressure value to a threshold for initiating operation of the maintenance pump, and

to operate the maintenance pump if the pressure value is less than the threshold for initiating operation of the maintenance pump;

a memory operatively configured to the programmable microprocessor, wherein the memory stores event statistics that are representative of (i) a past operation of the maintenance pump and (ii) pump system details of the pump system before, during, and after the past operation of the maintenance pump, wherein the maintenance pump controller is configured to analyze the stored event statistics, wherein the stored event statistics comprise a cycle data history for a plurality of past cycles of the maintenance pump and, for each cycle of the past cycles of the maintenance pump, an indication of a cause of a change in the pressure value within the pump system that triggered operation of the maintenance pump,

wherein additional sensors indicate the cause of the change in the pressure value, the additional sensors sensing when a sprinkler is triggered, when a leak is present or when a valve is opened;

when the maintenance pump controller determines that the pressure value is greater than a predefined pressure deviation over a last recorded pressure value, the event statistics store the pressure value with a date timestamp as the last recorded pressure value against which subsequent pressure values are compared; and

a communications interface, wherein the stored event statistics are accessible through the communications interface after the past operation of the maintenance pump;

wherein the maintenance pump controller further comprises a phase monitoring interface that provides pulsed digital signals to the programmable microprocessor, the pulsed digital signals indicative of a power line characteristic, and wherein the maintenance pump controller determines, based in part on the pulsed digital signals, whether there is a valid supply line with all phases present, a correct phase rotation, and proper frequency.

2. The maintenance pump system of claim 1, wherein the electronic circuit board is configured to receive inputs from a serial communication interface.

3. The maintenance pump system of claim 1 wherein the maintenance pump controller further comprises

an input/output (I/O) expansion board operatively coupled to the electronic circuit board.

4. The maintenance pump system of claim 1, wherein the electronic circuit board includes a graphics display driver, a relay output, a digital interface, an analog input interface, and a keypad interface.

5. The maintenance pump system of claim 1,

wherein the maintenance pump controller is configured to instruct the maintenance pump to continue to run until it receives a signal from the electronic circuit board indicating that the pressure value is above the threshold and a minimum run timer has expired, whichever occurs last.

6. The maintenance pump system of claim 1, wherein the maintenance pump controller further comprises a pressure transducer configured to generate, based on a pressure of the pump system, the signal.

7. The maintenance pump system of claim 1, wherein the maintenance pump controller is configured to instruct the maintenance pump to run after receiving a pump run signal from the electronic circuit board and after an on-delay time has expired.

8. The maintenance pump system of claim 1, wherein the cycle data history for the plurality of past cycles of the maintenance pump includes, for each cycle of the past cycles of the maintenance pump, an indication of when the maintenance pump was operated and a run-time of the maintenance pump.

9. The maintenance pump system of claim 1, wherein the event statistics comprise a historical data log of certain operational conditions of the maintenance pump.

10. The maintenance pump system of claim 1, wherein the communications interface comprises a display, and wherein the event statistics are retrievable and viewable via the display.

11. The maintenance pump system of claim 1, wherein the maintenance pump controller further comprises an enclosure that is configured to house the electronic circuit board,

wherein the enclosure further comprises a door;

and further comprising a user accessible door mounted touch screen display.

12. The maintenance pump system of claim 1 wherein the maintenance pump controller is programmed to allow the maintenance pump controller to operate at least two maintenance pumps within the pump system.

13. The maintenance pump system of claim 12 wherein the maintenance pump controller maintains the event statistics for the at least two maintenance pumps within the pump system.

14. The maintenance pump system of claim 1 further comprising a programmable timer.

15. The maintenance pump system of claim 1, wherein the phase monitoring interface is provided by an expansion board.

16. A maintenance pump system in a fire pump control room, comprising:

a maintenance pump controller residing within the fire pump control room and for controlling an operation of a maintenance pump, wherein the maintenance pump controller comprises;

an electronic circuit board comprising a programmable microprocessor, the microprocessor configured

to receive a signal indicating a pressure value,

to compare the pressure value to a threshold for initiating operation of the maintenance pump, and

to operate the maintenance pump if the pressure value is less than the threshold for initiating operation of the maintenance pump;

a memory operatively configured to the programmable microprocessor, wherein the memory stores event statistics that are representative of (i) a past operation of the maintenance pump and (ii) pump system details of the pump system before, during, and after the past operation of the maintenance pump, wherein the maintenance pump controller is configured to analyze the stored event statistics, wherein the stored event statistics comprise a cycle data history for a plurality of past cycles of the maintenance pump and, for each cycle of the past cycles of the maintenance pump, an indication of a cause of a change in the pressure value within the pump system that triggered operation of the maintenance pump,

wherein additional sensors indicate the cause of the change in the pressure value, the additional sensors sensing when a sprinkler is triggered, when a leak is present or when a valve is opened;

when the maintenance pump controller determines that the pressure value is greater than a predefined pressure deviation over a last recorded pressure value, the event statistics store the pressure value with a date timestamp as the last recorded pressure value against which subsequent pressure values are compared; and

a communications interface, wherein the stored event statistics are accessible through the communications interface after the past operation of the maintenance pump.