METHOD FOR LIFTING A SUNK OBJECT BY THE BLOWING METHOD WITH AUTOSTABILIZATION ON THE TRIM AND ASCENT RATE Russian patent published in 2022 - IPC B63C7/12 

FIELD: sunken objects lifting.

SUBSTANCE: invention relates to the field of work on lifting sunken objects, in particular ships, vessels, floating docks and floating structures with significant internal volumes, the purge of which with gaseous media leads to the creation of the buoyancy forces necessary for lifting. To lift a sunken object, the upper part of the body of the object, divided into separate compartments, is sealed, squeeze pipes are installed in the compartments, and compressed air is supplied to the compartments through air hoses, which squeezes out the water exiting through the squeeze pipes. The placement of the squeezing pipes in the purged compartments is carried out with an offset to the ends of the lifted object. Purging is carried out in a certain sequence with the alternation of the compartments being purged, starting from the compartment in the first of all lifted deeper end.

EFFECT: safety of lifting a sunken object is achieved by limiting the dynamics of the ascent of the object being lifted and making it controllable.

1 cl, 3 dwg