The utility model discloses a
drill floor dangerous area drainage water sealing
pipe structure, which comprises an external pipeline (1), an internal pipeline (2), water inlets (3), a top
flange access hole (4) and a bottom
flange access hole (6), the internal pipeline (2) is arranged in the external pipeline (1), the top of the internal pipeline (2) and the top of the external pipeline (1) form
height difference, the water inlets (3) are respectively arranged on the left side and the right side of the external pipeline (1), and the bottom
flange access hole (6) is arranged on the bottom flange access hole (6). The top flange access hole (4) and the bottom flange access hole (6) are respectively formed in the top and the bottom of the external pipeline (1), and a water outlet (7) is formed in the bottom of the internal pipeline (2). The drainage water seal
pipe structure for the dangerous area of the
drill floor is simple in structure, small in occupied space and convenient to clean and maintain in the later period, is arranged in the middle position below a
drill floor
deck, does not affect left-right sliding of the
drill floor, has important significance on water seal design of a
drill floor drainage
system, and lays a foundation for design optimization of
drill floor pipelines of subsequent maritime work projects.