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随着我国核电稳步发展时代的到来,第四代核电站高温气冷堆蒸发器传热管的在役检查成为关注热点,但是螺旋形盘式传热管的在役检查这一技术瓶颈也制约着它的发展。至今我国压水堆核电站的现行在役检查均采用涡流检测技术,在国外同样也如此,甚至还推出了远场涡流用于蒸发器管排的在役检查,并设计了SG排管四脚步行机器人系统。中国广核集团苏州热工研究院有限公司将导行波检测新技术应用于螺旋盘式传热管检测研究。目前研制企业已经完成1套商业样机制
With the advent of the steady development of nuclear power in our country, the in-service inspection of the heat transfer tubes of the HTR evaporator in the fourth generation of nuclear power plants has become a hot spot, but the technical bottleneck of the in-service inspection of spiral-shaped heat transfer tubes also restricts Its development. To date, the existing in-service inspections of pressurized water reactor nuclear power plants in China all adopt eddy current testing technology, and the same is true in foreign countries. Even far-field eddy currents are also being introduced for the in-service inspection of the evaporator tube banks and SG walkways are designed Robot system. China Guangdong Nuclear Power Group Suzhou Thermal Research Institute Co., Ltd. will be guided wave detection technology applied to spiral disc heat pipe testing research. At present, research and development enterprises have completed a set of business-like mechanism