Application of marine airbags in navigation field
- Application of marine airbags in ship navigation
When a ship sails in strong winds and waves, severe pitching and heaving will cause waves to beat the bottom and damage the hull structure; rolling will reduce the stability of the ship and make the personnel on board unable to work normally. Strong winds and waves will make it difficult to maneuver the ship, and the directionality and turning performance will be deteriorated.
In order to reduce violent shaking in strong winds and waves, some ships are equipped with retractable fin stabilizers to assist navigation, but the installation of fin stabilizers is not only expensive, but also causes irreversible changes to the hull structure and affects the navigation performance of the ship. The marine airbag is easy to carry and low in cost. It can not only play the role of fin stabilizer, but also provide buoyancy for the ship, thereby increasing the stability of the ship and assisting the navigation of the ship.
- Application of marine airbags in maritime rescue
- The ship is stranded or damaged
After the ship is stranded, it cannot go ashore by itself. Airbags can be placed around it to inflate the airbags to provide buoyancy, reduce the draft of the ship, and make it break away from the shelving position with the assistance of the airbag device; It can provide buoyancy and support for the ship, prevent the ship from tilting to cause secondary damage to the hull, and assist the ship to go shallow.
At the same time, in the sea or port waters, if the two ships collide or the ship is damaged due to other reasons, and the ship cannot maintain stability and float, the airbag device can effectively compensate for the buoyancy lost by the ship’s damage, so that the ship is less vulnerable to external assistance. In rare cases, rescue yourself and leave the accident water area as quickly as possible to avoid causing traffic congestion in the water area.
- Shipwreck salvage and towage
During the salvage process of the sunken ship, the airbag can be placed on both sides of the sunken ship, covered with brown rope or nylon rope net cover, connected with a steel cable ring under the cover, and then connected with the bottom jack of the ship, and then inflated to float; in addition, the airbag can also be used before inflation Put it in the inner cabin, inflate the airbag according to the need, correct the floating state of the ship, right the sunken ship, and then salvage the sunken ship through steel buoys or other methods.
When the sunken ship is salvaged out of the water and is towed by tugboats away from the accident waters, airbag devices can be attached to both sides of the accident ship to increase the buoyancy of the ship, and the floating state of the ship can be adjusted according to the loss of stability to reduce the manpower and material resources required for accident handling.