RU1796544C - Deep-water rescue vessel for raising sunken objects - Google Patents

Abstract

SUMMARY OF THE INVENTION: a vessel has a hull with a slip at the stern, a buoyancy changing system, water-jet 2 propulsors, a bow and aft stern devices, as well as cargo winches mounted on this hull to pull a sunken ship into a slip. A tooth is installed on the transom of the housing below the slip, made in the form of triangular prisms, interconnected by shielding shields. Between these teeth above the shielding shields are nozzles of water-jet propulsors, the intakes of which are located in the bow of the hull. 5 ill.

Description

The invention relates to shipbuilding.

Known devices for raising ships include draft barges, floating cranes, rescue and diving vessels, pumps, and devices for sealing the rooms and compartments of the vessel to be lifted and water is evacuated from them.

Known designs containing floating cranes, diving vessels, barges with filler, equipment and hoses for pumping filler (foaming agents, foam polystyrene, polystyrene, etc.) into the vessel to be lifted, devices for sealing holds with shields, adhesives, plasters, films, etc.

A disadvantage of the known constructions is low productivity and high cost.

A device for raising sunken ships comprising a submarine craft having a hull with a buoyancy changing system and with water jets is also known.

The disadvantages of this device are the same as the previous ones.

The aim of the invention is to increase operational efficiency.

This goal is achieved in that a deep-sea rescue vessel for lifting sunken objects, comprising a hull with a buoyancy changing system of the latter and with water-jet propulsion, is equipped with bow and stern root devices, as well as a cargo winch for drawing the sunken object onto the hull, the latter being made with with a feed slip with transverse rollers and with teeth mounted on the transom below the slip in the form of triangular prisms, interconnected by shielding shields, while water-jet intakes propulsors are located in the bow of the body, and their nozzles are between the said teeth above the shielding shields, the buoyancy change system being implemented with ballast tanks located in the body and associated pneumatic cylinders with compressed air and water pumps.

In Fig.1 shows the proposed device, a side view (AA): in Fig.2 -

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same, top view (BB); in Fig. 3 - the same, a top view (BB); in Fig, 4 is a General view of the device in a perspective view; figure 5 - shielding guards with teeth in a perspective view.

The deep-water rescue vessel for lifting sunken objects comprises a hull 1 with a buoyancy changing system for the latter, including ballast tanks 2, air balloons 3, water pumps 4, water-jet propulsion 5, bow 6 and stern 7 root devices, as well as a cargo winch 8 for retrieving the sunken object to the housing 1. The latter is made with a feed slip 9 with transverse rollers 10 and with teeth 12 mounted on the transom 11 below the slip 9, in the form of triangular prisms connected by shielding shields 13. Water intakes 14 jet propulsors 5 are located in the bow of the body, and their nozzles 15 are located between the teeth 12 above the shielding shields 13. The buoyancy changing system is made with ballast tanks 2 located in the body and pneumatic cylinders 3 connected to them with compressed air and water pumps 4.

The tooth 12 and the shielding flaps 13 are designed to prevent the dispersion of the water jet in the lower and lateral directions with focusing it on the bottom of the object to be lifted, while the installed rollers 10 reduce the forces when pulling and self-unloading of the lifted object.

The ship is brought to the place of the sunken object, transferred to the mode of operation under water by known methods, under water they approach the sunken object, hang over it and dumped

root devices 6 and 7 are removed. They move away from the object to a distance of 150-200 m in line with the object, lay on the ground, begin to approach it by sampling root devices 6 and 7, while bursting into the ground. The winch cables of the cargo winch 8 are drawn closer to the object and simultaneously assisted by the water-jet propulsion devices 5. When the object enters the lifting vessel along the rollers 10, the winches are switched off from the operating mode and transferred to the machine. Then, ship hull 1 is blown with air from compressed air cylinders 3 with compressed air and pumps 4 are turned on to pump water out of ship hull 1, allowing it to float. The ship is put on the surface and sent to the place of unloading. At the designated place, the raised object is unloaded due to the rollers 10.

Autonomous movement of the vessel in the surface and underwater position allows to exclude a whole series of labor-intensive work under water with high cost costs, such as overlaying shields, adhesives, sealing, etc., and to perform them if necessary in terrestrial conditions.

Blasting under the lifted object by erosion of the soil with a water cannon, at the exit of which there are shielding shields 13 with teeth 12 to exclude the dispersion of the jet stream in the lower and lateral directions, focusing it on the bottom of the lifted object, if there are rollers 10 on the deck of the lifting vessel to reduce efforts in retracting and self-unloading of the lifted object, as well as ensuring autonomous movement in the surface and underwater state, increase operational efficiency.

Claims (1)

SUMMARY OF THE INVENTION A deep-sea rescue vessel for raising sunken objects, comprising a hull with a buoyancy changing system and water jets, characterized in that, in order to increase operational efficiency, it is equipped with bow and stern root devices, as well as a cargo winch for pulling in the sunken object on the body, the latter is made with a stern slip with transverse rollers and with teeth mounted on the transom below the slipway in the form of triangular prisms connected by shielding shields, while the water jet propulsion intakes are located in the bow of the hull, and their nozzles are between the said teeth above the shielding shields, and the change system is mentioned buoyancy is made with ballast tanks located in the hull and associated pneumatic cylinders with compressed air and water pumps.