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压力容器投用后首次内外部检验周期一般为3年。笔者在对某液化气储罐站内的2台50 m~3液化气站储罐进行投用后首次内外部检验时,发现其中1台储罐的内表面有一个超标凹坑。从检查的情况分析,是投用前人为造成的机械损伤,使用一年过程基本没有太明显的损坏。笔者运用国家质检总局颁布的TSG R7001—2004《压力容器定期检验规则》,对此凹坑缺陷进行,安全
After the pressure vessel put into operation the first internal and external inspection cycle is generally 3 years. The author of two liquefied gas storage tank station 2 50 m ~ 3 liquefied gas station tank after the first internal and external testing, we found that one of the inner surface of the tank has an over standard pit. From the inspection of the situation analysis, is to vote for the previous mechanical damage caused by the use of the basic one-year process is not too obvious damage. The author of the State Administration of Quality Supervision promulgated TSG R7001-2004 “regular inspection of pressure vessels,” the pit defects, safety