Systems and methods for detecting and preventing fluid leaks

• US 20060260691A1
• Filed: 05/20/2005
• Published: 11/23/2006
• Est. Priority Date: 05/20/2005
• Status: Abandoned Application

• Current Assignee: John Andrew Davidoff
• Original Assignee: John Andrew Davidoff
• Inventors: Davidoff, John Andrew
• Application Number:
  US11/133,737
• Publication Number:
  US 20060260691A1
• Time in Patent Office: Days
• US Class Current: 137/487.500
• CPC Class Codes: G01M 3/2807 for pipes G01M3/2892, G01M3/30 take precedence
• CPC Class Codes: G01M 3/2815 using pressure measurements
• CPC Class Codes: Y10T 137/7761 Electrically actuated valve

Abstract

Systems and methods are provided for detecting and preventing fluid leaks. A rate of flow of a fluid through a conduit over a period of time is monitored. A determination is made whether the rate of flow of the fluid over the period of time indicates a leak in the conduit. If the rate of flow of the fluid over the period of time indicates a leak, then the flow of the liquid through the conduit is stopped, and a determination is made whether the pressure in the conduit indicates a pressure drop. If the pressure in the conduit indicates a pressure drop, then an indication is provided that a leak has been detected.

Claims

1. A method for detecting a leak in a conduit, comprising:

monitoring a rate of flow of a fluid through the conduit over a period of time;

determining if the rate of flow of the fluid over the period of time indicates a leak in the conduit;

if the rate of flow of the fluid over the period of time indicates a leak in the conduit, then stopping the flow of the fluid through the conduit;

after stopping the flow of the fluid through the conduit, monitoring a pressure in the conduit;

determining if the pressure in the conduit indicates a pressure drop in the conduit; and

if the pressure in the conduit indicates a pressure drop in the conduit, then providing an indication that a leak has been detected.

2. The method of claim 1, wherein determining if the rate of flow of the fluid over the period of time indicates a leak in the conduit comprises:

comparing the rate of flow of the fluid over the period of time to a list of events; and

if the rate of flow of the fluid over the period of time does not match one of the events on the list of events, then stopping the flow of the fluid through the conduit.

3. The method of claim 2, wherein the list of events includes a rate of flow of a fluid over a period of time corresponding to a water consumption event.

4. The method of claim 3, wherein the water consumption event includes at least one of the following:

washing clothes, washing dishes, taking a shower, taking a bath, and flushing a toilet.

5. The method of claim 1, wherein determining if the rate of flow of the fluid over the period of time indicates a leak in the conduit comprises:

receiving a selection of an operation mode, wherein the operation mode corresponds to a rate of flow of a fluid over a period of time;

comparing the rate of flow of the fluid over the period of time with a list of events;

if the rate of flow of the fluid over the period of time does not match one of the events in the list of events, then comparing the rate of flow of the fluid over the period of time with the rate of flow of the fluid over the period of time corresponding to the selected operation mode; and

if the rate of flow of the fluid over the period of time is not equal to the rate of flow of the fluid over the period of time corresponding to the selected operation mode, then stopping the flow of the fluid through the conduit.

6. The method of claim 4, wherein the operation mode includes filling a pool.

7. The method of claim 1, wherein determining if the pressure in the conduit indicates a pressure drop in the conduit further comprises:

comparing the pressure in the conduit with a pressure in the conduit when the conduit is closed; and

if the pressure in the conduit is less than the pressure in the conduit when the conduit is closed, then providing the indication that a leak has been detected.

8. The method of claim 1, wherein stopping the flow of the fluid through the conduit includes sending a signal to a valve connected to the conduit, wherein the signal instructs the valve to close.

9. The method of claim 1, wherein the indication that a leak has been detected includes an audible alert that continues until the audible alert is acknowledged.

10. The method of claim 1, further comprising:

receiving an indication that the rate of flow of the fluid over the period of time is not a leak; and

storing the rate of flow of the fluid over the period of time in the list of events.

11. A system for detecting a leak in a conduit, comprising:

means for determining a rate of flow of a fluid through the conduit;

control means for;

monitoring the rate of flow of the fluid over a period of time; and

determining if the rate of flow of the fluid over the period of time indicates a leak in the conduit;

means for stopping the flow of the fluid through the conduit if the rate of flow of the fluid over the period of time indicates a leak in the conduit;

means for determining a pressure in the conduit after the flow of the fluid through the conduit is stopped; and

the control means for;

monitoring the pressure in the conduit;

determining if the pressure in the conduit indicates a pressure drop in the conduit; and

providing an indication that a leak has been detected if the pressure in the conduit indicates a pressure drop in the conduit.

12. The system of claim 11, wherein the means for determining a rate of flow of a fluid through the conduit includes a flowmeter.

13. The system of claim 11, wherein the control means includes a system controller comprising a memory device, a processor functionally connected to the memory device, and a control panel.

14. The system of claim 11, wherein the means for stopping the flow of the fluid through the conduit includes a valve.

15. The system of claim 11, wherein the means for determining a pressure in the conduit includes a pressure sensor disposed downstream from the means for stopping the flow of the fluid through the conduit.

16. The system of claim 11, wherein the indication that a leak has been detected includes an audible alert that continues until the audible alert has been acknowledged.

17. A system for detecting a leak in a conduit, comprising:

a flowmeter operative to determine a rate of flow of a fluid through the conduit;

a system controller operative to;

monitor the rate of flow of the fluid through the conduit over a period of time;

compare the rate of flow of the fluid over the period of time with a list of events; and

if the rate of flow of the fluid over the period of time does not match one of the events on the list of events, then send a signal to stop the flow of the fluid though the conduit;

a valve operative to stop the flow of the fluid through the conduit in response to the signal from the system controller;

a pressure sensor operative to determine a pressure in the conduit after the flow of the fluid through the conduit is stopped;

the system controller further operative to;

monitor the pressure in the conduit after the flow of the fluid through the conduit is stopped;

compare the pressure in the conduit with a pressure in the conduit when the conduit is closed; and

provide an indication that a leak has been detected if the pressure in the conduit is less than the pressure in the conduit when the conduit is closed.

18. The system of claim 17, wherein the list of events includes a rate of flow of a fluid over a period of time corresponding to at least one of the following events:

washing clothes, washing dishes, taking a shower, taking a bath, and flushing a toilet.

19. The system of claim 17, wherein the system controller is further operative to:

receive a selection of an operation mode, wherein the operation mode corresponds to a rate of flow of a fluid over a period of time;

compare the rate of flow of the fluid over the period of time with the rate of flow of the fluid over the period of time corresponding to the selected operation mode;

if the rate of flow of the fluid over the period of time is not equal to the rate of flow of the fluid over the period of time corresponding to the selected operation mode, then compare the rate of flow of the fluid over the period of time with a list of events; and

if the rate of flow of the fluid over the period of time does not match one of the events in the list of events, then send a signal to stop the flow of the fluid.

20. The system of claim 17, wherein the system controller is further operative to:

receive an indication that the rate of flow of the fluid over the period of time is not a leak; and

store the rate of flow of the fluid over the period of time in the list of events.