Leak detection system and method

Patent metadata

Field	Value
Publication number	US-11525754-B2
Application number	US-202016949476-A
Country	US
Kind code	B2
Filing date	Oct 30, 2020
Priority date	Oct 30, 2020
Publication date	Dec 13, 2022
Grant date	Dec 13, 2022

Abstract

The system can include installing a gas meter in a gas supply net. The system may also include determining, by the gas meter, a level of pressure within the gas meter. The system may also include determining, by the gas meter, a flow rate level within the gas meter. The gas meter determines where a leak exists based on the flow rate level and the level of pressure. The system may also include determining, by the gas meter, a location of the leak, and whether the leak is upstream or downstream from the gas meter. The location of the leak is determined by the level of the pressure and the flow rate level. The system can also include a head end configured at a set position. The gas meter can inform the head end of the location of the leak.

First claim

The invention claimed is:

1. A method comprising:
installing a gas meter in a gas supply net;
determining, by the gas meter, a level of pressure within the gas meter;
determining, by the gas meter, a flow rate level within the gas meter, wherein the gas meter determines if a leak exists based on the flow rate level, and the level of pressure;
determining, by the gas meter, if a location of the leak is upstream or downstream from the gas meter; and
a head end configured at a set position, wherein the gas meter informs the head end of the location of the leak.

2. The method of claim 1 , wherein the location of the leak is downstream when the flow rate level is above a maximum flow rate and the level of pressure is lower than normal.

3. The method of claim 1 , wherein the location of the leak is upstream when the flow rate level has decreased and the level of pressure is lower than normal.

4. The method of claim 1 , further comprising:
determining, by the gas meter, whether the gas meter is used in air, gas, or a composition of both.

5. The method of claim 1 , further comprising:
determining, by the gas meter, whether the level of pressure is above an expected level and wherein the gas meter informs the head end of an abnormal high level of pressure.

6. The method of claim 1 , further comprising:
determining, by the gas meter, whether the level of pressure is above an expected level wherein the gas meter will close an integrated valve in case of an abnormal situation.

7. A system comprising:
a gas meter installed in a gas supply net;
a pressure sensor outside the gas meter and a pressure sensor inside the gas meter configured to determine a rate of pressure within the gas meter;
an flow tube configured to measure a flow rate within the gas meter, wherein the flow tube assists the gas meter to determine a location of a leak based on the rate of pressure and the flow rate, and
a head end configured to receive an alarm from the gas meter based on the determined rate of pressure, the measured flow rate, and the location of the leak,
wherein the gas meter determines if the gas meter is used in air, gas or a mixture of gas and air.

8. The system of claim 7 , wherein the gas meter is configured to inform the head end of an abnormal situation.

9. The system of claim 7 , wherein the head end provides information about the one or more locations of leaks to one or more external sources to enable the one or more external sources to provide assistance to the one or more locations of leaks.

10. The system of claim 7 , wherein the gas meter closes an integrated valve based on the location of the leak.

11. The system of claim 7 , wherein the measured flow rate and level of pressure allows the gas meter to determine that the location of the leak is downstream.

12. The system of claim 7 , wherein the measured flow rate and level of pressure allows the gas meter to determine that the location of the leak is upstream.

13. The system of claim 7 , wherein the gas meter closes an external valve in response to the leak being detected.

14. A system comprising:
a gas meter configured in a gas supply grid;
a meter housing configured with a first pressure sensor and a flow tube to measure a pressure and a flow rate of the gas meter within the grid;
an electronic index coupled with a second pressure sensor, wherein a difference between the first pressure sensor and the second pressure is calculated to determine a current net pressure within the gas meter; and
a head end configured to receive an alert from an RF communication module, wherein the head end receives the alert from the RF communication module based on a location of a leak being found based on the net pressure and flow rate of the gas meter,
wherein the gas meter determines whether the leak is upstream or downstream from the gas meter based on the flow rate and level of pressure information of the gas meter.

15. The system of claim 14 , wherein the gas meter informs the head end when the flow rate rises past a maximum flow rate of the gas meter.

16. The system of claim 14 , wherein the gas meter determines that an abnormal situation has occurred when the flow rate rises past a maximum flow rate of the gas meter.

17. The system of claim 14 , wherein the gas meter is configured to close an internal valve when the gas meter determines that there is a leak that is upstream or downstream from the gas meter.

18. The system of claim 14 , wherein the gas meter is configured to close an internal valve in response to the leak being a combination of air and gas to prevent any potential damage to a house or environment within the system.

Assignees

• Honeywell Int Inc

Inventors

• Lampe-Juergens Christian
• Berghegger Ralf Schroeder Genannt
• Wuchrer Andreas
• Meimberg Tobias
• Flerlage Norbert
• Temme Guido

Classifications

• Y04S20/30

  Smart metering, e.g. specially adapted for remote reading · CPC title

• G01D2204/26

  Remote utility meter reading systems with control function, i.e. reading systems including mechanisms for turning on/off the supply · CPC title

• G01D2204/22

  Arrangements for detecting or reporting faults, outages or leaks · CPC title

• G01M3/2815 Primary

  using pressure measurements · CPC title

• G01D4/004

  Remote reading of utility meters to a fixed location · CPC title