Control apparatus for a liquid dispense system

• US 8,257,595 B2
• Filed: 07/03/2006
• Issued: 09/04/2012
• Est. Priority Date: 07/30/2005
• Status: Active Grant

• Current Assignee: Vws UK Limited (Veolia Environnement SA)
• Original Assignee: Vws UK Limited (Veolia Environnement SA)
• Inventors: Underwood, Lee
• Primary Examiner(s): Smith, Duane
• Assistant Examiner(s): Durand, Paul J
• Application Number:
  US11/989,370
• Publication Number:
  US 20090134075A1
• Time in Patent Office: 2,255 Days
• Field of Search: 422/75, 422/77, 436/51, 222/1
• US Class Current: 210/739
• CPC Class Codes: C02F 1/008 Control or steering systems not provided for elsewhere in subclass C02F
• CPC Class Codes: C02F 1/20 by degassing, i.e. liberation of dissolved gases degasification of liquids in general B01D19/00; arrangement of degassing apparatus in boiler feed supply F22D
• CPC Class Codes: C02F 1/42 by ion-exchange ion-exchange in general B01J
• CPC Class Codes: C02F 2209/006 comprising a software program or a logic diagram
• CPC Class Codes: C02F 2209/40 Liquid flow rate
• CPC Class Codes: C02F 9/20 Portable or detachable small-scale multistage treatment devices, e.g. point of use or laboratory water purification systems

Abstract

A control apparatus for a liquid dispense system having at least one liquid outlet and at least one flow control device for controlling the dispense of liquid from said outlet(s) during a dispense operation, said control apparatus including an operating device for controlling the operation of at least one flow control device to permit dispense of a desired volume of liquid from the outlet(s) during a dispense operation; a recording device for recording one or more parameters of the liquid dispense system and/or the operating device during the dispense operation to create a dispense profile for the dispense operation, at least one of the recorded parameters being indicative of the flow rate of liquid at the outlet(s); and a control device for controlling the operation of the operating device during a subsequent dispense operation based upon the recorded dispense profile.

Claims

1. A method of controlling a water purification and dispensing system for purifying and dispensing water comprising at least one water outlet, at least one water outlet, at least one flow control device for controlling the flow rate of water from said at least one water outlet, one or more water purification means for purifying a stream of water and a control apparatus, the control apparatus comprising operating means for controlling the operation of the at least one flow control device to permit dispense of a desired volume of water from said at least one water outlet during a dispense operation;

recording means for recording one or more parameters of the operating means during said dispense operation to create a dispense profile for said dispense operation; and

control means for controlling the operation of the operating means during a subsequent dispense operation based upon the recorded dispense profile, the method comprising the steps of;

creating, via a computer, a new data file at the start of a user initiated dispense operation, the data file for storing data associated with the dispense operation;

repeatedly writing data on parameters including one or more of valve positions, pump voltages and sensor values to the data file until the end of a dispense operation to create a dispense profile;

labelling or tagging the dispense profile with a unique identifier to permit identification of a recorded dispense profile for selection of the recorded dispense profile by a subsequent user desiring the same dispense profile;

permitting a selection by a subsequent user of the unique identifier for a recorded dispense profile to use for controlling a subsequent dispense operation; and

controlling the operation of the operating means during a subsequent dispense operation based, upon the selected recorded dispense profile for dispensing water out of the at least one water outlet in accordance with the recorded dispense profile.

2. A method as claimed in claim 1, wherein recording the parameters comprises recording data pertinent to at least the flow rate of water at the at least one water outlet.

3. A method as claimed in claim 1, further comprising storing the dispense profile in the memory device once a dispense operation has been completed and wherein the labelling or tagging involves applying a unique identifier to the dispense profile inputted by the user.

4. A method as claimed in claim 1, wherein the at least one flow control device comprises a variable output pump and/or a flow control valve.

5. A method as claimed in claim 1, wherein the operating means includes one or more controllers, one or more sensing devices, and one or more input devices, including one or more user interfaces.

6. A method as claimed in claim 5, wherein the one or more input devices comprise at least one of an angle encoder, a potentiometer, and a key pad.

7. A method as claimed in claim 1, wherein the parameters recorded include a varying flow rate during said dispense operation.

8. A method as claimed in claim 7, wherein the varying flow rate during said dispense operation involves dispensing a first flow rate of water, followed by dispensing a second flow rate of water that is faster than the first flow rate, followed by dispensing a third flow rate of water that is slower than the first and second flow rates.

9. A method as claimed in claim 1, wherein the parameters recorded are indicative of a flow rate of water that is greater than zero and less than full flow.

10. A method as claimed in claim 1, wherein the parameters recorded are indicative of multiple flow rates of the water that are stored in a single dispense profile and dispensed during a single dispense cycle for filling the volume.

11. A method as claimed in claim 1, wherein the water purification and dispensing system includes a recirculation circuit between the inlet and outlet for recirculating water, and wherein the step of controlling the operating means involves controlling the channelling of water from the recirculation circuit to the outlet.

12. A method of dispensing water from a water purification and dispensing system for purifying and dispensing water comprising at least one water inlet, at least one water outlet, at least one flow control device for controlling the flow rate of water from said at least one water outlet, one or more water purification means for purifying a stream of water so as to provide water and a control apparatus, the control apparatus comprising:

operating means for controlling the operation of the at least one flow control device to permit dispense of a desired volume of water from said at least one water outlet during a dispense operation;

recording means adapted to receive information on parameters of the operating means including one or more of valve positions, pump voltages and sensor values associated with the dispense operation and for recording that information in a dispense profile; and

control means for controlling the operation of the operating means during a subsequent dispense operation based upon the recorded dispense profile, the method comprising the steps of;

creating a new data file at the start of a user initiated dispense operation, the data file adapted to store data associated with the dispense operation being run by the user;

writing data on parameters related to the dispense operation including one or more of valve positions, pump voltages and sensor values to the data file throughout the dispense operation to create the recorded dispense profile for that particular dispense;

labelling or tagging the dispense profile with a unique identifier to permit identification of the recorded dispense profile for selection of the recorded dispense profile by a subsequent user desiring the same dispense profile;

permitting a selection of the unique identifier for a recorded dispense profile by a subsequent user to use for controlling a subsequent dispense operation; and

controlling the operation of the operating means during a subsequent dispense operation based, upon the selected recorded dispense profile for dispensing water out of the at least one water outlet in accordance with the recorded dispense profile.

13. A method as claimed in claim 12, wherein the parameters recorded are indicative of a flow rate of water that is greater than zero and less than full flow.

14. A method as claimed in claim 12, wherein the parameters recorded are indicative of multiple flow rates of the water during a single dispense cycle that are stored in a single dispense profile for filling the volume.

15. A method as claimed in claim 12, wherein the varied flow rate output during said dispense operation involves dispensing a first flow rate of water, followed by dispensing a second flow rate of water that is faster than the first flow rate, followed by dispensing a third flow rate of water that is slower than the first and second flow rates.

16. A method as claimed in claim 12, wherein the water purification and dispensing system includes a recirculation circuit between the inlet and outlet for recirculating water, and wherein the step of controlling the operating means involves controlling the channelling of water from the recirculation circuit to the outlet.

17. A method as claimed in claim 12, wherein the step of labelling or tagging the dispense profile occurs after the user initiated dispense operation is complete.