20MW水冷磁体冷却水系统节能优化设计

针对水冷磁体运行产生的热负荷设计了本水冷系统,该系统在保障磁体稳定运行的前提下,进行了节能优化设计。其中自然分层水蓄冷技术的应用不仅节约占地还可增大蓄水量,而利用峰谷电价差进行夜间蓄冷的方式更可节约运行成本;利用闭式冷却塔在气温较低时取代上游冷水机组的设计也最大程度地节约了电能;此外在运行模式方面,系统可根据不同水冷磁体实验负荷进行灵活转换;在设备选择方面,均采用节能环保的产品,如制冷系数高的冷水机组,传热系数较高的板式换热器等。本系统对MW级以上水冷系统设计具有较好的参考价值。

Optimum design of water cooling system in 20 MW resistive magnet

Cooling water system was designed according to the heat load caused by the operation of the resistive magnet.Optimum design was carried out on the premise that the magnet system operated in the stable condition.The use of naturally stratified chilled water storage not only saved the area but also increased the storage capacity.Moreover,operation cost was saved by producting chilled-water in night because of the peak-valley price of power.The use of closed circuit cooling tower replacing the upstream chiller in low air temperature could also save the power.In addition,as to the operational mode,this system could convert flexibly according to the different experimental load of the resistive magnet.As for the choice of the equipment,the product which was energy-saving and environment-protective was used as much as possible,for example,the chiller with high COP,the heat-exchanger with high coefficient,etc.This system has important referential value for the design of the MW cooling water system in China.