Experience of the erosion-corrosion problems in the main ring cooling water system at the KEK-PS
Experience of the erosion-corrosion problems in the main ring cooling water system at the KEK-PS
复制标题
KEK-PS主环冷却水系统冲刷腐蚀问题的经验
DOI：
10.1109/pac.2001.986702
复制
发表时间：
2001
期刊：
影响因子：
--
通讯作者：
N. Tokuda
中科院分区：
文献类型：
--
作者：
H. Sato;T. Kubo;K. Marutsuka;Y. Saito;M. Shirakata;N. Tokuda
KEK-PS工程建设二十多年来，冷却系统漏水事故时有发生。20摄氏度的低电导率去离子水在机械支持大楼供应，并在闭合环路中循环。水流经主环磁铁、用于束流注入和引出的各种磁铁、校正磁铁和供电系统等。最近，由于水管堵塞，在放射性较高的地区进行了各种修复工作。经过多次调查，得出结论，大部分泄漏是由于长时间使用后的冲刷腐蚀造成的。我们在未来的冷却系统/材料设计中引入了冲刷腐蚀问题。
After more than two decades have passed since the KEK-PS construction, water leak accidents in the cooling system have occurred frequently. Low conductivity deionized water, at 20 degrees centigrade, is supplied at the Mechanical support building and circulates in a closed loop. Water flows through the main ring magnets, various magnets for beam injection and extraction, correction magnets and the power supply system, and so on. Recently, various repair works due to the plugged water pipes have been attempted in a high radioactivated area. After several investigations it was concluded that most of the leaks come from erosion-corrosion after long periods of use. We introduce erosion-corrosion problems into future cooling system/material designs.