Anti-collision device for docking pier of lng wharf

Abstract

The invention discloses an LNG wharf breasting dolphin anti-collision device, and belongs to the technical field of wharf ship berthing safety facilities. The anti-collision device comprises shore end boxes and ship end boxes. The shore end boxes are embedded in movable tables. The shore end boxes transversely move along a wharf through motor driving, and motors and shore end electromagnets in the shore end boxes are electrically connected with anti-collision device control tables. Movable table wheels are embedded in longitudinal sliding ways, and telescopic cables drive the movable tables to move up and down. Ship end electromagnets are arranged on one sides of the ship end boxes, and externally-connected wires above the ship end boxes are electrically connected with the ship end electromagnets. Each ship end box is provided with two semicircular rings, and manually-used semicircular rings are arranged on the side faces of the ship end boxes. According to the anti-collision device, the mutual repelling force of the same poles of the magnets is reasonably utilized, force generated through mutual repelling of the ship end permanent magnets on the ship end boxes and the electromagnets on the shore end boxes to neutralize the collision force generated through the transverse movement of an LNG ship. The collision force of the LNG ship to a wharf breasting dolphin is reduced, the ship body surface is protected, and the safety of the LNG ship during berthing is improved.

Description

technical field [0001] The invention relates to an anti-collision device for a berthing pier of an LNG wharf, belonging to the technical field of safety facilities for berthing at a wharf. Background technique [0002] Now my country's LNG terminals are under construction in full swing, most of which are pier terminals. The pier type wharf is a discontinuous structure, which is composed of docking pier, mooring pier, working platform pier, approach bridge and pedestrian bridge. Among them, the mooring piers are used to moor the LNG ship on the shore and prevent the LNG ship from moving greatly with the waves. The berthing pier is to prevent the lateral movement of the LNG ship from hitting the wharf. [0003] The traditional pier is made of cement or steel. The impact force of each collision of an LNG ship under the action of waves will directly act on the side of the hull, which will cause impact damage to the LNG hull and pier. At present, the tonnage of ships docked at...

AI Technical Summary

Problems solved by technology

At present, the tonnage of ships docked at my country's LNG terminals is mostly 90,000 to 266,000 cubic meters. For large LNG ships, due to inertia, each lateral movement has a huge force on the pier. It may cause deformation or damage, and also affect the internal structure of the hull, so that it may lead to shipwreck accidents, causing casualties and economic losses

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