| 摘要 |
PROBLEM TO BE SOLVED: To provide a protection member of a marine boiler overheater pipe such as capable of preventing metallic corrosion by acceleration high temperature oxidation (a vanadium attack) with a simple constitution. SOLUTION: This protection member is formed of a plate-like member for covering the periphery of the marine boiler overheater pipe with a plurality, with curvature for contacting in a surface with the marine boiler overheater pipe, by using an alloy of nickel Ni and a chrome Cr of adding molybdenum Mo, for preventing corrosion by combustion ash sticking including vanadium, by being arranged in a passing part of a burner flame in the marine boiler overheater pipe with heavy oil as main fuel. COPYRIGHT: (C)2009,JPO&INPIT
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