3月23日,东北公司松江河发电厂向国家知识产权局申请的《大坝弧门手自动一体破冰装置》首个专利项目获得批准。此项专利的获批,填补了松江河发电厂自建厂以来国家专利项目的空白。松江河发电厂地处长白山高寒山区,冬季气侯寒冷,湖面结冻时间长达5个月之久,弧门前冰层厚度达 On March 23, the first patent project of “Dam Arc Door Hand Automatic Ice Breaking Device” applied by the Songjianghe Power Plant of Northeast China to the State Intellectual Property Office was approved. The approval of this patent, to fill the Songjianghe power plant since the construction of the national patent project blank. Songjianghe Power Plant is located in the alpine mountain Changbai Mountain, the winter climate is cold, the lake frozen for as long as 5 months, the thickness of the arc before the ice