Device for ice cover damage

FIELD: construction.

SUBSTANCE: device is proposed to damage ice cover comprising an underwater vessel equipped with ballast cisterns, due to drying of which a trim is created to a stern and buoyancy force. In the bow there is a container with a reservoir in it, walls of which are made of corrugated elastic material. Inner sides of the container are equipped with remotely controlled relief valves, and the reservoir itself with the help of a flexible hose is connected with a source of compressed air, is attached to the bottom of the container with the help of slings, and being straightened by supplied air it acquires toroid shape.

EFFECT: increased efficiency of ice cover damage by an underwater vessel.

5 dwg

 

The invention relates to shipbuilding, in particular to underwater vessels, destroying the ice cover during the ascent.

Known technical solution (S. L. Karlinsky security Concept ice sailing // Technical report FSUE MT "RUBIN". BLITZ. 11-05-07. 2007. 570), in which the ice cover in surfacing is proposed to destroy the nasal tip by draining ballast tanks, i.e. the arising force of buoyancy, and the creation of trim by the stern.

The disadvantage of the solution is the limited thickness of the destroyed ice, depending on the size of the ballast tanks, i.e., the reserve buoyancy of a vessel.

Summary of the invention consist in the development of a device that allows you to increase the force of buoyancy of a vessel.

The technical result obtained by carrying out the invention, is to increase efficiency, i.e. increasing the thickness of the destroyed ice.

The essential features characterizing the invention.

Restrictive: a device for the destruction of the ice cover, which consists of the underwater vessel and are equipped with ballast tanks, due to the drainage of which are used in the trim by the stern and the force of buoyancy.

Distinctive: in the bow of the vessel is provided a container nested in the container whose walls are made of corrugated resilient material, it �the indoor side is equipped with a remote-controlled bypass valve, and the vessel by means of a flexible hose connected to a source of compressed air attached to the bottom of the container using a sling and when straightening during the air acquires a toroidal shape.

To implement the proposed solutions in the bow of the vessel perform the container in which is placed a container whose walls are made of corrugated resilient material. Capacity by means of a flexible hose connected to a source of compressed air, for admission in which capacity the latter takes the form of a torus. The inner wall of the torus is equipped with a remote-controlled bypass valve, and the vessel is using a sling attached to the bottom of the container.

The device operates as follows. If the ascent of the vessel after draining of the ballast tanks and the creation of trim by the stern of the ship is not able to destroy the ice cover, the vessel is immersed and placed under the ice container, which by means of a flexible hose pumped the air. As a result, the capacity gain toroidal shape, whose diameter should be larger than the diameter of the underwater vessel. This is necessary to avoid contact between the container and the nasal surface of the vessel repetitive primenenii. After that, the ship re-emerges, due to the sling, fastening the container to the bottom container, a place to�tact forward end with ice will be at the center of curvature of the toroidal surface of the container, and due to the arising of the buoyancy capacity will be pressed against the lower surface of the ice cover to form thus bounded from above and on the sides of the volume. To increase buoyancy forces in this volume due to the pressure relief valves air is supplied, the amount of which should ensure complete filling. If the resulting additional force maintain again insufficient for the destruction of the ice cover at the site of contact of the nasal tip with ice, the pressure in the container increases at the expense of her goffered nature of the walls of the tank diameter increases, simultaneously with filling valves with compressed air increasing toroidal interior volume of the tank to the occurrence of the first through cracks in the ice. Further increase in pressure and flow to power capacity is impractical because of the discontinuities in the ice cover will lead to an intensive expiration of air through the formed cracks. After the air in motion will inevitably be involved and the mass of water which is formed near the airbag, since the pressure in this area will fall. Since the density and viscosity of air is substantially less than that of water, at the time of exit through the cracks last portion of the air entrained in similar movement of the water mass in its path of movement, meet months�Noah hydraulic resistance in the form of cracks, that will lead to the occurrence of surge and a corresponding increase in the degree of destruction of the ice cover. As a result achieved the claimed technical result.

The invention is illustrated graphically, where: Fig. 1 shows the ship when afloat in a known manner; Fig. 2 - placement under the ice of the inventive device; Fig. 3 - working together the known and the claimed device; Fig. 4 - increase the diameter of the toroidal container; Fig. 5 - diagram of the occurrence of surge.

In the bow of the vessel 1 is performed by the container 2, in which is placed a receptacle (not shown). If the ascent of the vessel buoyancy forces P1is insufficient for destruction of ice cover 3, then place the container 4 is made of a corrugated elastic material, by means of a flow through a flexible hose 5 air (source of compressed air not shown). Capacity attached to the bottom of the container 2 slings 6 (Fig. 2). After re-primeneniya vessel 1 through the bypass valve 7 (Fig. 2-4) volume 8 inside the container 4 (Fig. 2-4) is filled with air. If increasing the strength of P2>R1again insufficient for the destruction of the ice cover, the pressure in the container 4 increases, at the expense of her goffered nature of the walls of the tank diameter increases, simultaneously by means of valves 7 filling the air at�ilicifolia volume 8 as long when increasing the magnitude of force P3>P2>P1(Fig. 4) will be sufficient to cause the first through cracks 9 that will lead to surge in the field of 10 and an increase in the degree of destruction of the ice cover (Fig. 5, a contrivance not shown).

Device for destruction of ice cover consisting of the underwater vessel equipped with ballast tanks by draining which are trim by the stern and the force of buoyancy, characterized in that the bow provides a container nested in the container whose walls are made of corrugated resilient material, its inner side is provided with remote-controlled bypass valve, and the vessel by means of a flexible hose connected to a source of compressed air attached to the bottom of the container using a sling and when straightening during the air acquires a toroidal shape.



 

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