在即将退役的核设施中,有相当数量的大型碳钢中、低放废液贮罐,其体积为200～1000m3。此类大容量贮槽的设计和建造大多均未考虑在达到设备寿期后的去污和退役问题;其次,设备经长期使用后放射性污染严重,难于接近或进入,不便进行改装或新增某些设备进行去污;另外,传统的去污工艺 In the forthcoming decommissioned nuclear facilities, a considerable amount of large and medium-carbon steel storage tanks, with a volume of 200 ~ 1000m3. Most of the design and construction of such large-capacity storage tanks have not considered the problem of decontamination and decommissioning after the equipment life time is reached. Secondly, after long-term use of the equipment, radioactive pollution is serious and difficult to access or access, which makes it inconvenient to modify or add some Some equipment decontamination; In addition, the traditional decontamination process