Method of improving the life expectancy of piping
First Claim
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1. A method of improving the life expectancy of piping, the method comprising the steps of:
- obtaining pipe lengths manufactured using a process that produces a uniform wall thickness within a predetermined tolerance such that the wall thickness of the pipe lengths has a random distribution within the predetermined tolerance;
determining a circumferential position in the piping having a highest expected rate of wall thickness reduction;
determining a circumferential section of a plurality of pipe lengths having a greatest wall thickness; and
installing the plurality of pipe lengths in the piping by rotating respective pipe lengths to align the circumferential section of the respective pipe lengths having the greatest wall thickness with the circumferential position of the piping having the highest expected rate of wall thickness reduction.
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Abstract
A method of improving the life expectancy of piping has steps of determining a circumferential position in the piping having a highest expected rate of wall thickness reduction; determining a circumferential section of a pipe length having a greatest wall thickness; and installing the pipe length in the piping by rotating the pipe length to align the circumferential section of the pipe length having the greatest wall thickness with the circumferential position of the piping having the highest expected rate of wall thickness reduction.
35 Citations
18 Claims
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1. A method of improving the life expectancy of piping, the method comprising the steps of:
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obtaining pipe lengths manufactured using a process that produces a uniform wall thickness within a predetermined tolerance such that the wall thickness of the pipe lengths has a random distribution within the predetermined tolerance; determining a circumferential position in the piping having a highest expected rate of wall thickness reduction; determining a circumferential section of a plurality of pipe lengths having a greatest wall thickness; and installing the plurality of pipe lengths in the piping by rotating respective pipe lengths to align the circumferential section of the respective pipe lengths having the greatest wall thickness with the circumferential position of the piping having the highest expected rate of wall thickness reduction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of improving the life expectancy of piping installed along a transport path, the method comprising the steps of:
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obtaining pipe lengths manufactured using a process that produces a uniform wall thickness within a predetermined tolerance such that the wall thickness of the pipe lengths has a random distribution within the predetermined tolerance; at a plurality of locations along the transport path, predicting a wall thickness reduction rate at a plurality of circumferential positions for piping to be installed; measuring a wall thickness at a plurality of circumferential positions of each of a plurality of pipe lengths to determine variations in the wall thickness in each pipe length; determining a radial orientation of the pipe lengths at a plurality of locations along the transport path to improve the life expectancy of the pipe lengths based on the measured wall thickness of the pipe length and the predicted wall thickness reduction rate of the piping to be installed; and installing the pipe lengths along the transport path in the determined radial orientations. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification