Movable device for inspecting a flow line partially submerged in an expanse of water, suitable for negotiating a curve in the flow line, and associated installation and method

摘要

The device (18) comprises an assembly (26) for attaching to and moving on the flow line (16). The attachment and movement assembly (26) comprises at least two clamps (28, 30) that can be actuated selectively to clamp the flow line, the attachment and movement assembly (26) comprising an active mechanism for moving the clamps (28, 30) longitudinally relative to each other. The attachment and movement assembly (26) comprises a tilting mechanism (52) for tilting the clamps (28, 30) relative to each other, between a position in which they are parallel to each other and a position in which they are tilted with respect to each other. The tilting mechanism (52) comprises a bending bar (152) capable of switching from a straight configuration in the parallel position of the clamps (28, 30) to a curved configuration in the tilted position of the clamps (28, 30).