According to the fact that freeze - resisting measure is needed to be taken for the gates operating in winter and low head arch gates , electrothermic freeze - resisting device is designed in this thesis 本文根据冬季有运行要求的闸门及低水头弧形闸门需要采取防冻措施的实际情况，研究设计了一种电热型防冻装置。