Tool and process for centrifugal cleaning of flange through hole of top cover of pressure container

The invention relates to the technical field of reactor pressure vessel equipment, in particular to a tool and process for centrifugal cleaning of a pressure vessel top cover flange through hole. The cleaning tool comprises a long shaft, a brush head and a brushing piece, the brush head is fixedly connected to the long shaft, the long shaft drives the brush head to move up and down, the brushing piece is detachably installed on the brush head, and when the long shaft is rotated, the brushing piece brushes the inner wall of the through hole of the top cover flange of the pressure container. And meanwhile, a waste collecting and filtering mechanism is further arranged and used for collecting, filtering and cleaning waste. The tool and the process can effectively solve the problem that the flange through hole is difficult to clean, can effectively improve the working efficiency, reduce the radiation measurement of personnel, and prevent diffusion, loosening and pollution. 本发明涉及反应堆压力容器设备技术领域，特别是涉及一种用于压力容器顶盖法兰通孔离心