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Monitoring of leakage in wastewater force mains and other pipes carrying fluid under pressure

  • US 7,810,378 B2
  • Filed: 06/21/2007
  • Issued: 10/12/2010
  • Est. Priority Date: 06/21/2007
  • Status: Active Grant
First Claim
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1. A method of detecting leakage in a pipe for carrying a pressurized fluid, comprising:

  • isolating a section of said pipe;

    creating conditions of negative pressure in said isolated section of said pipe so that external fluid is drawn into said isolated section to generate noise or vibration at a leak location;

    generating signals corresponding to said noise or vibration from spaced sensors located on said pipe; and

    analyzing said signals to determine the location of said leak.

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