SHIP-RAISING SYSTEM, SOLID-PROPELLANT GAS GENERATOR AND SHIP-RAISING METHOD Russian patent published in 2019 - IPC B63C7/00 

FIELD: shipbuilding.

SUBSTANCE: invention relates to ship building, particularly, to ship lifting and rescue operations. Ship-lifting system comprises a cross member in the form of a closed pipe, internal partitions divided into ballast tanks, wherein gas generators are installed in medium lateral and end tanks to disengage during lifting due to roll or trim at elevation. In the lower part of the closed pipe there is a platform, to which the gripping device working elements are attached, made in the form of a hollow rod hinged to the intermediate and end support cantilevers, interacting with closed anchor chain, which is fixed on end console on one side, and on the other side is engaged with sprocket installed on lower platform of hydraulic windlass. Solid-fuel gas generator contains cylindrical stick of unitary solid fuel, on the upper end of which there is a localiser of the combustion zone in the form of a balancer, which consists of an inverted heat-resistant cup with an electric heater, a bracket, a hinge with an attached rigid rod with a buoyancy element and a counterbalance. Before lifting operation in end and two middle side ballast tanks solid-propellant gas generators are arranged, having total gas-forming capacity sufficient when filling said tanks to overcome tear-off resistance. And during the process of deepening the support cantilevers into the sludge, the preset direction of the ship lifting system is maintained by bending and unbending those gripping device working members, which are lagging behind the rate of penetration. These actions are carried out until complete coverage of the lifted object, and then, by blowing the main ballast tanks, a force is created, which is equal to the design lifting weight of the lifted object, then voltage is simultaneously applied to all solid-fuel gas generators.

EFFECT: higher efficiency of ship-raising operations.

5 cl, 10 dwg