Ship launching air bag drainage new technology and new process has its unique advantages, practical experience, followed by the use of high-toughness light-load dynamic air bag and its new air bag, the overall planning of the berth and drainage slope has been successful, more than 50,000 tons of ships with air bag drainage is completely feasible, but it is necessary to listen to the relevant safety precautions: It is necessary to plan the ship airbag drainage berth and the Angle drainage slope carefully. According to the weight of the ship, the direction of the center of gravity, the line shape of the bottom of the ship, the slope of the drainage slope, and the convex and concave of the water line, the bag drainage carryover is carried out. There must be a carry-over basis for the gas pressure and thermal stress of each airbag during each stroke arrangement of the overturning, especially when the ship produces stern fall and stern rise.

Marine air bag method/process

1. The success of the airbag pulling the ship is the application of the Marine airbag to lift the ship in the water, and the application of the crane to pull the ship to the ground. This expertise does not require ropeways and marinas and is ideal for ship repair companies and rescue applications.

Marine airbags are usually required to depend on the tide change, in the high tide position, let the ship as close to the shore as possible, in the low tide position and then close to the direction of the anchored ship, just start to put the airbags, and pump air to lift the ship. Then the crane is used to pull the ship forward, and the hull is moved, and the bottom end can Pierce a large number of air bags. Repeated left and right processes, and finally the air bag supports all the ship, and pulls the ship successfully under the drive of the crane. After the ship is successful, it arrives at the reserved direction, places the support point pier, then the air bag releases air, the hull falls into the support point pier, and the work is finished.

2, the key factors to determine whether the airbag can be successful include: hull weight, passenger and cargo vessels, slope bearing capacity, inclination, crane tensile force and tide. Success in pulling a boat requires the removal of the hull forces and the sliding friction between the air bags and the road surface, so consideration of the tensile force is a major factor in ensuring the success of the new project. Successful ships are usually in the water for some time, and the bottom of the ship often carries shellfish microbes, requiring the bottom to be removed before the new project can proceed.

3, usually when the ship is transferred to the booking direction, the cable is required to carry out accurate positioning of the hull. The embedded parts can also be temporarily inserted when the air bag is at low tide level. In order to ensure that the air bag moves down, the air bag can be pre-vacuum-packed. When the air bag lifts the ship body, if the total area of contact is small and the lifting is difficult, you can listen to the advice of such methods as sandbags under the air bag to expand the contact connection, and then improve the lifting force. When the hull is jacked up, a large number of air bags are fed to the stern to ensure that the stern does not touch the ground, to maintain the hull, and to prevent friction resistance when driving the hull. For ships of very large tonnage, concrete slopes for overall planning engineering construction are necessary