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原子能委员会根据法国电力公司和法美原子公司的要求,发展了一些应用于压水堆一回路各主要承压部件的独特检验方法和检验技术。这些检验方法和检验技术广泛地采用了各种无损检验方法: (1)涡流法,特别是多种频率检测装置,用以检测蒸汽发生器的管子以及压力壳的螺栓、螺帽。 (2)聚焦超声波法,从压力壳内部检测压力壳壳体及其封头的焊缝、壳体及蒸汽发生器的复合焊缝、稳压器的下部焊缝和螺栓。 (3)壳体复合焊缝的γ射线照相。 (4)壳体及封头组件的不锈钢衬里的电视检查及渗透探伤。此外,在一回路水压试验时,还要进行声学检测,并在运行中,作连续声学检测。目前,这些方法已应用于运行的反应堆和其它未投运的反应堆。用这些方法已经成功地检查了费森海姆的两只90万千瓦的及苏兹的反应堆。(每十年检查一次)
According to the requirements of EDF and FAA, the Atomic Energy Commission has developed some unique inspection methods and inspection techniques that are applied to the main pressure-bearing components of the primary circuit of PWR. A variety of non-destructive testing methods are widely used in these test methods and inspection techniques: (1) Eddy-current methods, particularly a variety of frequency detection devices, are used to inspect the steam generator tubes and the pressure shell bolts and nuts. (2) focused ultrasonic method, the pressure shell shell and its head from the internal test seam, shell and steam generator composite welds, the lower part of the regulator weld and bolts. (3) Gamma radiography of shell composite welds. (4) TV inspection and penetration inspection of the stainless steel lining of the shell and head assembly. In addition, the first loop hydrostatic test, but also for acoustic testing, and in operation, for continuous acoustic testing. At present, these methods have been applied to operational reactors and other non-commissioned reactors. These methods have successfully examined two 900,000 kW and Suz reactors in Fresenheim. (Check every 10 years)