Submarine pipeline temporary plugging device

The utility model discloses a temporary plugging device for a submarine pipeline. The temporary plugging device comprises a plugging plate; the sealing end head is fixedly connected to the center position of the plate surface of one side of the plugging plate; the handle is fixedly connected to the surface of the other side of the plugging plate; the bolt hole is formed in the edge end of the plate surface of the plugging plate; and the balance hole is formed in the circle center position of the plugging plate. According to the utility model, in the time before the whole pipeline connection is completed and the pipe cleaning diameter measurement is carried out, seabed impurities are prevented from entering the subsea pipeline to block the subsea pipeline. 本实用新型公开了一种海底管道临时封堵装置，包括：封堵板；密封端头，所述密封端头固定连接于所述封堵板一侧板面中心位置；手柄，所述手柄固定连接于所述封堵板另一侧板面；螺栓孔，所述螺栓孔开设于所述封堵板板面边缘端；平衡孔，所述平衡孔开设于所述封堵板圆心位置。本实用新型在整个管道连接完成，清管测径之前的时间内，避免中海底杂质进入海管造成海管堵塞。