Post-manufacturing processes for submerged combustion burner
First Claim
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1. A method comprising:
- disposing at least a portion of a submerged combustion burner into a pressure vessel, wherein the portion of the submerged combustion burner has a first microstructure defined by a first number of voids;
filling the pressure vessel containing the portion of the submerged combustion burner with an inert gas;
pressurizing the pressure vessel containing the portion of the submerged combustion burner;
heating the pressure vessel containing the portion of the submerged combustion burner, wherein the pressurizing and heating operations are performed for a time and at a temperature and a pressure sufficient to produce a second microstructure in the burner, wherein the second microstructure is defined by a second number of voids less than the first number of voids; and
weld-repairing a defect in the portion of the submerged burner before disposing the portion of the submerged combustion burner in the pressure vessel.
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Abstract
A portion of a submerged combustion burner is disposed into a pressure vessel. The portion of the submerged combustion burner has a welded area that has a first microstructure defined by a first number of voids. The vessel is filled with an inert gas, pressurized, and heated. Pressurizing and heating operations are performed for a time and at a temperature and a pressure sufficient to produce a second microstructure in the welded area of the burner. The second microstructure is defined by a second number of voids less than the first number of voids.
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Citations
12 Claims
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1. A method comprising:
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disposing at least a portion of a submerged combustion burner into a pressure vessel, wherein the portion of the submerged combustion burner has a first microstructure defined by a first number of voids; filling the pressure vessel containing the portion of the submerged combustion burner with an inert gas; pressurizing the pressure vessel containing the portion of the submerged combustion burner; heating the pressure vessel containing the portion of the submerged combustion burner, wherein the pressurizing and heating operations are performed for a time and at a temperature and a pressure sufficient to produce a second microstructure in the burner, wherein the second microstructure is defined by a second number of voids less than the first number of voids; and weld-repairing a defect in the portion of the submerged burner before disposing the portion of the submerged combustion burner in the pressure vessel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification