铜陵发电厂六期1000MW超超临界机组焊接工程施工技术

Ultra supercritical units welding engineering construction technology of Tongling power plant phase six of 1000 MW

铜陵发电厂六期"上大压小"改扩建工程为安徽省内首台超超临界百万机组,是目前亚洲最高、单机规模最大的高参数、大容量、低能耗、环保型超超临界塔式炉燃煤发电机组,是安徽省"861"重点项目,由安徽省皖能股份有限公司控股投资建设,采用EPC模式。该机组总焊口数达81 570只,实现了无损检验一次合格率99.90%,并创造了百万塔式炉T23钢水冷壁不爆管的记录。同时该机组实现水压试验、电气倒送电、整套启动、并网发电、168 h试运等重大节点项目的一次成功。

In tongling power plant phase six projects of ＂big pressure on the small＂ millions first ultra-supercritical units in anhui province,is currently the biggest in Asia,high parameter,large capacity,low energy consumption,environmental protection ultrasupercritical coal-fired power generating units tower furnace,is the anhui province ＂861＂ key project,by anhui anhui can investment construction co.,LTD.,holding,use EPC mode.The unit to the total number of joint of 81 570 only,realize the nondestructive inspection a 99.90％ pass rate,and created millions of T23 steel tower furnace water wall tube records.But the realization of hydrostatic test unit,electric power,a complete set of start,nodes connected to the grid,168 hours of the related project a success.