Working device for inner wall surface of tower tank, and inner wall surface working method using the same

摘要

By using a construction in which a suspended beam structure (9) is suspended from a suspension support base (8) that has been installed inside a tower structure (1), in a manner that enables movement up and down of the suspended beam structure, an operations unit (20) is attached to the suspended beam structure (9) via a guide mechanism (Z), in a manner that enables movement up and down, and/or left and right, and operations such as welding are then performed on an inner wall surface (1d) of the tower structure (1) using the operations unit (20), the operating height position for the operations unit (20) is easily altered by moving the suspended beam structure (9) up or down, the operation for adjusting levels during operations is markedly simplified, or even unnecessary, and the safety and operating efficiency of operations is improved.