Device for breaking down ice cover

FIELD: ship building.

SUBSTANCE: invention relates to shipbuilding, particularly to submarine vehicles which break up ice cover. Device for the destruction of the ice cover consisting of a submarine vessel equipped with an anchor is proposed, the diameter of the paws opening must be greater than the length of the cockpit, with the help of a cable providing attachment of the vessel to the ice, and ballast tanks, which filling with the outboard water provides occurrence of the negative buoyancy, sufficient to destroy the ice cover of a given thickness. Point of the rope securing to the submarine should be aligned with the submarine displacement center. Under the ice cover on the anchor line at a distance from each other equal to half the wavelength of the static deflection of the ice, cathode and anode are installed, which are supplied with voltage from a source of direct electric current.

EFFECT: technical result is to increase the thickness of the ice cover to be destroyed.

1 cl, 1 dwg



Same patents:

FIELD: transport.

SUBSTANCE: proposed device comprises permeable wheel arranged between the boards and provided with top and bottom shields and vertical guides. The latter accommodate replaceable module including stationary power section. The latter is equipped with handling winch with fluid drive, central lock with fluid drive and lines of communication with central underwater vehicle systems. Moving cargo section is hung at winch chain by mating part of said central lock to displace in said well in said guides and to be fixed at top and bottom positions. This is effected by annunciators and locks provided with fluid drives installed at the well. Replaceable module power section top part is equipped with mechanical locks for fastening with appropriate seats in said wells while bottom part is provided with mechanical locks are connection with mating rods of cargo section. Communication means are composed of flexible sleeves with fast-release joints and electric cable with connectors their mating parts being arranged at the well. Cargo section fastening elements can simultaneously lock and squeeze said cargo section. Well bottom shield is composed of cargo section bottom with cargo component to be stopped for loading at bottom position. Replaceable module can vary the quantity and volume of cargo section cargo compartments.

EFFECT: simplified design and higher reliability.

5 cl, 4 dwg

FIELD: transport.

SUBSTANCE: invention proposes a multi-hulled deep submersible manned vehicle being a general-purpose integrated system, which consists of several (for example three) hulls located for example in a row, one of which is the main propulsive one, and the rest ones are interchangeable modules. As per the second version of the design of the multi-hulled deep submersible manned vehicle, symmetry axes of its hulls if looking from the front are located in one circumferential direction; propellers are installed in the centre of the system between the hulls. The modules are tightly attached to the main hull by an automatic detachable connection with transfer hatches of interaction between the hulls. Each hull is provided with systems of life support and independent surfacing depending on the purpose. The multi-hulled deep submersible manned vehicle has a device for connection with a conducting rope to a carrier aircraft (at its arrangement on the carrier aircraft) or to a carrier ship and is capable of being moved both on the water surface and under water with remote control as a tethered vehicle or as an independent vehicle.

EFFECT: improvement of operating characteristics of a submersible vehicle; enlargement of its functional capabilities.

2 cl, 11 dwg

FIELD: transport.

SUBSTANCE: underwater aircraft carrier is proposed which vessel contains interconnected in parallel modules, including two propeller modules, totally four modules are made, herewith, the third module is installed between propeller modules, made air-capable and contains flying-off deck and inductive coil made concentrically to main hull, under it aeroplane hangar module is made, herewith, front and rear ends of air-capable module are made with closing openings for take-off and landing.

EFFECT: improved combat capabilities of underwater vessel.

6 cl, 5 dwg

FIELD: transport engineering.

SUBSTANCE: method is implemented by creation ship trim by the stern, and buoyancy force due to drainage of the ballast tanks. At that the ship is provided with additional buoyancy force that is periodically changed with frequency equal to natural frequency of the resonance bending-gravitational waves generated in ice cover by pulse load.

EFFECT: increased efficiency of ice destruction by submarine.

4 dwg

Transport facility // 2550103

FIELD: transport.

SUBSTANCE: proposed vehicle comprises body, head, propulsor and steering complex. Hollow cylindrical screw jacket is arranged around the periphery of the body to spin there about and around its axis. Said jacket has outer laps as screw blades over the entire length of screw jacket. It is composed by three or more rectangular equal-width equal-length strips concaved or convexed relative to screw jacket rotational axis. Said strips are coiled in vertical plane in lengthwise direction and flexed in screw lines across cylindrical mandrel. Or, said screw jacket can be composed by three or more screw strips, curvilinear of various order and degree of curvature at centres located outside or inside screw jacket cross-section. Said strips are interconnected to make laps as screw blades over the entire length of screw jacket, screw lines and screw curvilinear surfaces as helical grooves concaved or convexed relative to screw jacket rotational axis with curvature centres located outside or inside screw jacket cross-section.

EFFECT: enhanced operating performances.

11 dwg

FIELD: transport.

SUBSTANCE: underwater vehicle of increased manoeuvrability contains streamlined hull, propulsion system, hydro-jet pipes with inlet and outlet fittings, additionally it is provided with electric generators, accumulator batteries, guiding screens and water intake. Streamlined hull is drop-shaped. Propulsion system includes frontal, aft, left, right and central hydraulic propulsors which are made in the form of hollow helical surface and installed in the area of outlet fittings of hydro-jet pipes. Inlet fittings of hydro-jet pipes are fitted inside vertical water intake. Electric generators are installed on hydraulic propulsors. Guiding screens have shape of spheric cup and are rigidly fixed with gap to hull in the areas of outlet fittings of hydro-jet pipes.

EFFECT: improved performance of underwater vehicle.

4 cl, 4 dwg

Transport facility // 2546361

FIELD: transport.

SUBSTANCE: vehicle comprises hull with two rows of working wells, propulsor, deckhouse and steering complex. Hollow conical screw jacket is arranged around the periphery of the body to spin there about and around its axis It is composed by curvilinear strips of various order and degree of curvature. Centres of curvature are located inside or outside jacket cross-section to make along its periphery the multistart screw surface with screw lines and helical grooves. These are inclined relative to rotational axis inside said hollow conical screw jacket. Strips feature different width increasing over jacket length from inlet to outlet. Said strips are coiled in vertical plane in lengthwise direction and flexed in screw lines across mandrel composed by paraboloid of revolution. Said jacket has outer laps as screw blades over the entire length of screw jacket.

EFFECT: enhanced operating performances.

14 dwg

Yk submarine // 2545175

FIELD: transport.

SUBSTANCE: invention relates to ship building, particularly, to design of submarines. Proposed combat submarine has block-module hull. Fore and aft blocks are composed of one-piece cylindrical (conical) shell with end spherical bulkheads. Mid block is shaped to rectangular prism with recesses with missile containers and central bulkhead for accommodation of stiff compartment for communication between fore and aft compartments with commando apparatus and floatable rescue chamber.

EFFECT: enhanced combat performances.

4 dwg

FIELD: transport.

SUBSTANCE: proposed system comprises carrier craft to be submerged from support vessel which is equipped with underwater robot connected with said surface support vessel via power cable, control cable and preventer. Driving ballast tanks shaped to circular sectors in plan and provided with vent valves arranged at their top part and sea grates at their bottom and equalising ballast tanks are additionally incorporated with this system. Said tanks are interconnected by rigid split fasteners in perimeter of their adjacent surfaces to make a circular hull of underwater carrier craft and spaced apart by, primarily, equal spacings and are located equidistant from said circular hull centre. Carrier craft is equipped with compressed air cylinders, manipulators, their control unit and propulsion-steering complex composed by rotary propulsors with drives, compressed air systems and equalising ballast. Support vessel hull has underwater carrier craft and robot up and don silo.

EFFECT: enhanced operating performances.

5 cl, 6 dwg

Submariner base // 2539610

FIELD: transport.

SUBSTANCE: invention relates to ship-building, specifically to enterprises intended for basing, technical inspection and renovation of vessels, as well as for initial operations connected with hydrocarbon production. Base of underwater oil-producing fleet includes administration and on-site facilities, dock, osmotron, railway station, airport with helipad. Dock is made with possibility of technical inspection of underwater vehicles which produce oil under drifting ice and represents transshipment point when oil is delivered by radio-controlled raiders in meshy containers which fill polymeric reservoirs with oil on dry-cargo vessels to deliver containers to oil refineries. Dock roof is equipped with snow-saving canisters from which melt-water can be used to raise water level in separate compartments of dock and to generate electric energy in hydraulic turbine.

EFFECT: base for underwater oil-producing fleet is organized to provide vessel technical inspection, crew rotation, replenishment of completion materials and to serve as transshipment point when oil is delivered by raiders to dry-cargo vessels.

8 dwg

FIELD: transport.

SUBSTANCE: shipboard icebreaking device is proposed which device contains axe pivotally mounted on horizontal axis in fore bottom vessel part so that while the ship is underway the axe is under ice and directed forward. The axe is forced into vibration using vertical shaft windlass with bell crank mounted on its upper flange which bell crank transmits motion to axe by means of chain pivotally connected with the bell crank and passed through block installed on lever at fore end near stempost. The chain is attached to the axe. Herewith, the chain is additional icebreaking element as saw because it performs reciprocating movement. To adjust initial height of the axe depending on ice cover thickness and draft the lever with block and hydraulic actuator, as well as turnbuckle mounted between chain links are provided. Axe can be fixed in upper nonoperational position.

EFFECT: simplified design, improved reliability and efficiency of shipboard icebreaking device.

2 cl, 7 dwg

FIELD: transport.

SUBSTANCE: this method relates to setting of underwater vessels overboard the ship in ice conditions. Strong air-inflatable tanks are used to make a bunch of required length to be secured at two bars aboard the ship. Produced structure is lowered in water to inflate said tanks and to push broken ice off the board. Note here that inflated structure draft exceeds the ice draft owing to deadweight.

EFFECT: higher safety, accelerated handling of submarines and other underwater equipment.

FIELD: process engineering.

SUBSTANCE: invention relates to ice destruction for making passages in ice fields. Proposed process is based on two effects to be brought on ice fields: irradiation with high-power laser radiation and straining of ice by ice breaker hull. Laser units are installed at ice breaker with their focusing devices are directed downward, onto ice cover. To make the cutouts in ice field it is irradiated starting from the field edge and proceeded in lines parallel with ice breaker heading. The destruction of ice cover is performed in said lines of cutouts at strain developed by ice breaker hull in motion.

EFFECT: accelerated process, lower strain at ice breaker hull.

2 cl, 8 dwg

FIELD: heating.

SUBSTANCE: invention proposes an ice melting device for the passage of a ship, which includes the following: a boiler configured so that a heat carrier can be heated; a high temperature pump configured so that the heated heat carrier can be transferred; a heating casing having a possibility of being heated by means of the heat carrier transferred by means of the high temperature pump and connected to the fore compartment of the ship; and a hot gas jet generation unit having a possibility of being located in front of the heating casing and ejected by an air jet heated by means of the heat carrier. Besides, versions of the device design using a hot cutter unit are considered.

EFFECT: improving the efficiency and simplifying the design of the ice melting device.

14 cl, 6 dwg

FIELD: blasting operations.

SUBSTANCE: explosive charges are placed under the ice and undermined in sequence with the time interval equal to the time of passage of flexural-gravitation wave from the place of undermining the previous to the place of undermining the subsequent charges. Above the ice cover the explosive charges are placed and undermined simultaneously with undermining the charges placed under the ice cover. At that, before the placement of the explosive charges the speed and direction of wind, undercurrents and drifts of ice fields is measured, the thickness of ice is determined. The explosive charges are placed with the formation of the direction of propagation of the blast wave in the opposite directions from the location of marine object of economic activity. The watercraft influencing the ice cover is equipped with a source of gas and a system of its supply with a collector and comprises a cable-rope, the other end of which is connected through the electromagnetic breaker with the ballast. The charges are placed in watertight casings made in the form of a ball. The cable-rope is connected to the balls by the fuse lighter. The charges are made in the form of the volume-detonating mixture.

EFFECT: increase in reliability of protection of marine objects of economic activity.

2 cl, 2 dwg

FIELD: transport.

SUBSTANCE: proposed method comprises creation of thrust with the help of ship propulsor to act upon the ice bulk along with creation of rarefaction in water by its intake and ejection from the area in shift aft in direction of ship motion. Note here that water ejection is performed by ship propulsor or by ship active control means.

EFFECT: power saving in navigation in ice.

Ice breaker aft // 2551638

FIELD: transport.

SUBSTANCE: ice breaker aft comprises ice breaking ledge rigidly secured at stem-post in the ship centre line and arranged behind rudder blade along ship motion. Top end of rudder blade turn axle extends thorough stem-post while bottom end is secured at the heel rigidly secured with keel. Said rudder blade turn axle is arranged on the side of ice breaking ledge side, said ledge being rigidly coupled by vertical prop with appropriate end of said heel to make a vertical protective frame around rudder propeller unit. Vertical prop rear edge is sharpened. Ice baffle plates are rigidly secured on both sides of stem-post at acute angle to horizontal plane at ship hull underwater surface, free ends of said plates are lowered under secured edges by at least to the level above below screw top edge. Distance from rudder blade turn axle to its rear edge does not exceed the radius of curvature described by said edge.

EFFECT: better controllability in reverse motion, higher reliability of rudder propeller protection.

3 cl, 3 dwg

FIELD: transport engineering.

SUBSTANCE: method is implemented by creation ship trim by the stern, and buoyancy force due to drainage of the ballast tanks. At that the ship is provided with additional buoyancy force that is periodically changed with frequency equal to natural frequency of the resonance bending-gravitational waves generated in ice cover by pulse load.

EFFECT: increased efficiency of ice destruction by submarine.

4 dwg

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

FIELD: transport.

SUBSTANCE: invention relates to ship building, particularly, to ice breaker vessels and pusher tug to be operated in shallow iced areas. Ice breaker comprises hull with sledge-type stern counter and steering mover complex arranged in the latter and including two paddle propulsors arranged on sides as well as two whirligig steering columns provided with two propeller screws and arranged in symmetry about the ice breaker centre line. Stern counter at structural waterline area features ice breaking shape with expressed wedge-shape with taper angle in waterline making 90-180 degrees and with surface inclined to vertical , at least 30 degrees. Ice-protection nose is formed in stern counter perimeter, features wedge-like cross-section and does not extend beyond ship hull. Said nose extends in fore direction beyond the screw propeller disc plane by magnitude not exceeding two diameters of said propulsors. This nose features height whereat its bottom edge at stern is spaced from rotational axes of screw propellers by at least half the radius of said propellers.

EFFECT: better manoeuvrability in ice.

3 dwg

FIELD: shipbuilding; submarine vessels running under ice conditions and breaking ice cover by resonance method at surfacing in compact ice.

SUBSTANCE: while breaking the ice, ship makes several lanes at area of surfacing; number of lanes is dictated by safety of surfacing. Degree of breaking the ice is determined by maximum force of thrust of propeller.

EFFECT: enhanced safety of surfacing under ice conditions.