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US 10,648,604 B2Granted
Branch fitting for reducing stress caused by acoustic induced vibration
AssigneeBechtel Oil, Gas & Chemicals, Inc.
InventorsIsmat Eljaouhari, Yuqing Liu, Philip Diwakar, Dan Lin, Ajay Prakash
Life of this patent
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Abstract
A contoured branch fitting for reducing stress in a header pipe caused by acoustic induced vibration that includes a maximum width, a maximum length, a thickness that is greater along the maximum length and a constant radius between the branch connection and the header connection.
Claims11
A branch fitting, which comprises:
- a maximum width (MW);
- a maximum length (ML), wherein the ML is at least 1.10 times longer than the MW;
- a maximum height (MH);
- a constant inside radius (BRi) between a branch connection for the branch fitting and a header connection for the branch fitting;
- a constant outside radius (BRo) between the branch connection and the header connection;
- wherein the branch fitting at the branch connection includes an outside diameter (do) and a header pipe at the header connection includes an inside radius (HRi) and a thickness (T);
- and
- wherein the MW=(do−0.04(do2)) (2+0.14(HRi+T)−0.0024(HRi+T)2).
5 more elements
Dependencies are inferred from the claim text.