Ice melting device for ship passage (versions)

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

 

The level of technology

1. The technical field to which the invention relates

The present invention relates to a device for melting the ice for the passage of a vessel which is configured with the ability to sail across the sea, lake or river while melting ice on the sea, in a lake or in the river.

2. Description of the prior art

As increasing the volume of trade between countries and the need for traffic, an increasing attention is paid to minimize distribution costs. When a cargo ship moves from any country in northeast Asia, which has relatively the largest volume of cargo transportation in the country which are located on the opposite side in Asia, or in a European country, traditional sea route is a sea route that goes around Africa via Hong Kong and Singapore, which are located in the South of the continent. On the other hand, in the case of the Arctic ocean it is known that the distance of swimming is reduced by about 40%, and the sailing time is reduced by approximately 10 days compared with the case of using the existing sea route. A shorter distance swimming may lead to reduction of the very high cost of goods and to conserve fuel consumed by the engine.

Legacydisable a ship created only in order to sail through the waters covered with ice, marine and optimizes the path by breaking the ice. When the icebreaker performs the transit of the known speed of the icebreaker is approximately 2.5 per node on average, approximately 20% from approximately 12 knots, which represent the average speed of the large trading ship that sails through the waters without ice. Therefore, despite the short distance, the sailing time is sharply increased, and thereby decreases the economic feasibility.

Therefore, a cost-effective way to the North pole is based on whether or not icebreaker transit while simple breaking of ice at low costs.

To overcome the shortcomings of the icebreaker, laid patent publication (Korea) No. 2012-53292 reveals that the heating element, which runs high-pressure steam, is mounted in the nose compartment of the vessel. However, the method using the pair has the problem that the design of various types of pipes and valves is complicated and increases costs to withstand high pressure, and required much time to melt the ice, due to their small heat capacity.

The essence of the invented�I

The present invention implemented in an attempt to provide a device that can be easily installed in a sailing vessel in order to remove the ice at a low cost and high efficiency without the use of an icebreaker.

Additionally, the present invention implemented in an attempt to provide a device for melting ice for the passage of a vessel which is configured with the ability to quickly melt the ice only by the immediate contact of ice with the use of oil coolant instead of breaking the ice.

According to an exemplary embodiment of the present invention, a device for melting ice for the passage of a vessel, comprising: a boiler configured to heat the coolant; high temperature pump, configured with the ability to carry the heated coolant; heating the casing, configured to heat through the coolant carried by high-temperature pump, and is connected to the nasal compartment of the vessel; and a plant producing a jet of hot gas, configured with the ability to drive in front of the heating casing and ejection of a jet of air heated by the coolant.

Temperature pump may include �elektromotory the node and the node of the impeller, which allows the electromotive node to carry the coolant, and the coolant can be configured with the ability to circulate in the electromotive node.

The heating jacket may be in the form of a metal plate having the shape of the blade that is in contact with the left and right surfaces of the fore and inner part of the heating casing may include a first heat exchange unit for providing heat exchange with the coolant.

The device for melting the ice for the passage of a vessel may further include: an insulating plate configured to be arranged in contact with the nasal compartment of the heating casing and block heat from the heating casing.

The device for melting the ice for the passage of a vessel may further include: a retractable frame that is configured to protrude from the fore to the plant producing a jet of hot gas to keep the plant producing a jet of hot gas.

Retractable frame buffer may contain a node that is configured with the ability to buffer the plant producing a jet of hot gas.

The plant producing a jet of hot gas may be located in the transverse direction relative to the direction of motion�Oia vessel.

The plant producing a jet of hot gas may include: a compressor, configured with the ability to transfer the air; a second heat exchanger node, configured to allow the coolant to heat the air; and a variety of nozzles configured with the ability to quickly throw a jet of heated air.

The device for melting the ice for the passage of a vessel may further include: a heating unit of a knife configured in the shape of the blade with a vertical front from the heating jacket with the ability to be heated by the coolant to melt the ice.

The heating unit of the knife may include a third heat exchange node to provide heat exchange with the coolant.

The device for melting the ice for the passage of a vessel may further include: a control unit position configured with the ability to control the position and depth of the heating unit of a knife.

The carrier may be an oil, which transfer heat at a temperature of 250-450°C.

According to another exemplary embodiment of the present invention, a device for melting ice for the passage of a vessel, comprising: a boiler configured with the possibility nagrevatelnyesektsii; temperature pump, configured with the ability to transport the heated coolant; heating the casing, configured to heat through the coolant transported through high-temperature pump, and is connected to the nasal compartment of the vessel; and a heating unit of a knife configured with the ability to have a blade shape with a vertical front from the heating jacket and heated by the coolant to melt the ice.

According to another to another exemplary embodiment of the present invention, a device for melting ice for the passage of a vessel, comprising: a boiler configured to heat the coolant; high temperature pump, configured with the ability to transport the heated coolant; a plant producing a jet of hot gas is configured to be heated by the coolant carried by high-temperature pump, and front nose compartment of the ship, to pump the air heated by the coolant; and a heating unit of a knife, configured with the ability to have a blade shape with a vertical from front of machine for getting jet hot�of gas and heat through the coolant to melt the ice.

Brief description of the drawings

The above and other objectives, features and advantages of the present invention shall become clearer from the following detailed description, considered in connection with the accompanying drawings, in which:

Fig. 1 is a view in perspective, illustrating the conceptual state in which the ice melts through the vessel S, equipped with the device 100 to melt the ice for the passage of a vessel according to an exemplary embodiment of the present invention;

Fig. 2 is a view in cross-section, conceptually illustrating a state in which the ice melts through the vessel S, equipped with the device 100 to melt the ice for the passage of a vessel according to an exemplary embodiment of the present invention;

Fig. 3 is a schematic configuration of the device 100 to melt the ice for the passage of a vessel according to an exemplary embodiment of the present invention;

Fig. 4 is a top view in partial cross-section of the state in which is mounted a heating casing 110 according to an exemplary embodiment of the present invention;

Fig. 5 is a schematic top view in cross section installation 120 receiving a jet of hot gas according to�of an exemplary embodiment of the present invention; and

Fig. 6 is a view in cross section of a high-temperature pump 160 according to an exemplary embodiment of the present invention.

Detailed description of preferred embodiments

Further in this document describes the device 100 to melt the ice for the passage of a vessel according to an exemplary embodiment of the present invention with reference to the accompanying drawings.

Fig. 1 is a view in perspective, illustrating the conceptual state in which the ice melts through the vessel S, equipped with the device 100 to melt the ice for the passage of a vessel according to an exemplary embodiment of the present invention, Fig. 2 is a view in cross-section, conceptually illustrating a state in which the ice melts through the vessel S, equipped with the device 100 to melt the ice for the passage of a vessel according to an exemplary embodiment of the present invention, Fig. 3 is a schematic configuration of the device 100 to melt the ice for the passage of a vessel according to an exemplary embodiment of the present invention, Fig. 4 is a top view in partial cross-section of the state in which is mounted a heating casing 110 according to an exemplary embodiment of the �altoadige of the invention, and Fig. 5 is a schematic top view in cross section installation 120 receiving a jet of hot gas according to an exemplary embodiment of the present invention.

As illustrated in these drawings, the device 100 for melting the ice for the passage of a vessel configured with the possibility of acceding to the nasal compartment of the ship S and can operate in a state in which the device 100 to melt the ice for the passage of a vessel can be installed in waters with ice, and in a state in which the device 100 to melt the ice for the passage of a vessel may separate the total water area without ice.

The device 100 for melting the ice for the passage of vessel mainly includes a heating casing 110, the installation of 120 receiving a jet of hot gas and the block 130 of the heating of the knife, and these heater assemblies are connected to the boiler and high temperature 150 pump 160, which are mounted in the vessel S. however, The device 100 for melting the ice for the passage of a vessel can be configured with the option to include any one or a combination of two elements from the heating casing 110, install 120 receiving a jet of hot gas and the block 130 of the heating knife instead of configuring with the option to include all the elements of the device 100 for races�of Alivaria ice for the passage of a vessel.

Boiler 150 is configured with the ability to heat the coolant. As the coolant can be used mineral oils that can transfer heat at a temperature of 250-450°C and to provide sufficient heat to melt the ice while maintaining a liquid state even at a high temperature.

The coolant heated by the boiler 150, served in high-temperature pump 160 through the first valve 171. Temperature pump 160 is a unit that circulate high temperature heat carrier and is required in order to prevent leakage of the coolant, to maintain the insulation and applying high pressure. Below describes in detail the temperature pump 160 with reference to Fig. 6.

Heating the casing 110 is configured to heat through the coolant carried by high-temperature pump 160, and is configured with the possibility of acceding to the nasal compartment of the vessel S. in Detail, as illustrated in Fig. 4, the heating casing 110 may be in the form of a metal plate having the shape of the blade that is in contact with the left and right surfaces of the nose compartment. The inner part of the heating casing 110 may include a first heat exchanger node 112 to provide heat exchange with theplanet�LEM. The shape of the first heat exchanger node 112 may be configured in the form of multiple tubes or multiple layers in which heat exchange is easily performed. Additionally, the contact portion with a nasal compartment of the heating casing 110 may contain a heat insulating plate 115. The insulating plate 115 is configured with the ability to prevent exposure to heat from the fore fracture or fatigue due to high-temperature heating of the casing 110, which is heated at about 250°C by heat exchange with the coolant in the 250-450°C. the heat Insulating plate 115 may be made of an elastic resin, rubber or spring material, to be able to soften the blow due to collision with ice C, which is transferred to the vessel's hull.

Install 120 receiving a jet of hot gas is located in front of the heating casing 110 and is configured with the ability to throw a stream of air, heated by the coolant. Install 120 receiving a jet of hot gas may contain a sliding frame 141, which extends from the fore of the ship S to install 120 receiving a jet of hot gas, in order to support the installation of 120 receiving a jet of hot gas. Sliding frame 141 may contain a buffer node 142, to allow the mouth�Ofce 120 receiving a jet of hot gas or the block 130 of the heating knife to reduce the resistance or force of impact, which is applied in the collision with ice C. the Buffer unit 142 may be formed from elastic springs, the cylinder on the basis of the working fluid, etc.

Install 120 receiving a jet of hot gas is in the transverse direction relative to the direction of movement of the vessel S (see Fig. 1), and its inner part contains a second heat exchanger node 122, which is formed to allow the coolant to heat the air. Install 120 receiving a jet of hot gas may include a compressor 125 to provide compressed air (see Fig. 3), and the lower mounting surface 120 receiving a jet of hot gas may comprise a plurality of nozzles 121 that are formed with the ability to throw a jet of heated air in the direction of ice at high speed (see Fig. 5).

Block 130 of the heating knife has a blade shape with a vertical front from the heating casing 110 and is heated by the coolant to melt the ice, having a thickness of approximately 5-7 m. the Interior of the unit 130 of the heating of the knife may include a third heat exchanger node 132 to provide heat exchange with the coolant. Additionally, block 135 management position, to control the position and depth of the heating unit 13 of the knife depending on the thickness or depth of ice, can be located�ogen between 120 receiving a jet of hot gas and the block 130 of the heating blade. As block 135 management position can be used a hydraulic motor, mechanical linkage, etc.

In order to maintain or disconnect the device 100 to melt the ice for the passage of the ship, the ship S can contain crane 101 and the cable 102.

Further in this document describes the operation of the device 100 to melt the ice for the passage of a vessel.

As illustrated in Fig. 1 when the ship's sailing through the waters with ice C, block 130 of the heating knife, located in the nose compartment is heated at about 250°C by means of the heat carrier heated at a high temperature at 250-450°C. the Block 130 of the heating knife having a blade shape that provides a large amount of heat in the direction of ice C over a short period of time when both sides of the block 130 of the heating knife come in contact with ice C so that they heat up quickly at 0°C, which is a temperature which can melt the ice C. As a consequence, highly expandable ice layer breaks down.

Install 120 receiving a jet of hot gas quickly throws a jet of high-temperature air heated at about 250°C by the carrier, in the direction of ice C. Thus, ice C is formed by simple cleavage into small cha�year.

The heating casing 110 facilitates complete crushing ice, melt through the block 130 knife or heating installation 120 receiving a jet of hot gas, which is located in front of the heating casing 110. However, while combining the heating of the casing 110, the installation of 120 receiving a jet of hot gas and the block 130 of the heating knife, any of these elements can be excluded. Additionally, as illustrated in Fig. 3, the heating tool to melt the ice, can be selectively used by means of the second valve 172 to open and close the channel for the coolant supplied to the heating casing 110, and the third valve 173 to open and close the channel for the coolant is fed in 120 receiving a jet of hot gas or a block 130 of the heating of the knife.

Fig. 6 is a view in cross section of a high-temperature pump 160 according to an exemplary embodiment of the present invention. As a high-temperature pump 160 according to this variant implementation, which is a pump with high heat resistance, allowing high temperature resistance, can be used leaky pump with electric motor enclosed design in which the o-ring is not damaged �even in a hostile environment. In other words, high temperature pump 160 may include electromotive node and the node of the impeller, and the fluid is configured to circulate to the interior of electromotive node. Further more describes temperature pump 160.

Temperature pump 160 may include components such as the shell 160-10, impeller 160-15, the front housing 160-12, rear housing 160-22, block 160-30 of the stator, the rotor unit 160-40, bearings 160-51 and 160-52, bushings 160-55 and 160-56, auxiliary impeller 160-60, the connector 160-70, etc. However, in some cases, high temperature pump 160 does not include some of the above components or may be replaced by another form.

Shell 160-10, which is a component that encloses within itself the impeller 160-15, contains the inlet port 111 into which is introduced the working fluid, i.e., liquid coolant, and an outlet 112 that carry the working fluid by means of centrifugal force.

The impeller 160-15, which is a component connected to the rotor hub 160-40, receives a driving force provided from the rotary node 160-40, and forcibly directs the working fluid in the centrifugal direction by rotation, to allow the working fluid �to eremets in the direction of the outlet 112 of the shell 160-10.

The front housing 160-21 and rear body 160-22 have such a form that they expand inside respectively, so as to provide seats on which should be placed bearings 160-51 and 160-52. To connect the front housing 160-21 and rear body 160-22, block 160-30 stator contains the corresponding flanges 160-31 and 160-32. Here, the front flange 131 may be shaped so that it has a diameter greater than the diameter of the rear flange 132 so as to connect directly with sheath 160-10. The front flange 131 and sheath 160-10 are interconnected by means of flange 135 bolt inserted from the front of the flange 131. High sealing strength and a simple Assembly is achieved through the design of a direct connection between the unit 160-30 stator and cover 160-10. The front housing 160-21 connected with front flange 131 of the block 160-30 through the stator flange bolt 125 is inserted from the front housing 160-21.

Rotary node 160-40 includes a shaft 160-41, core 160-42 rotor fastened to the shaft 160-41, and the cover 143 of the rotor, the sealing core 160-42 of the rotor.

Shaft 160-41 includes a through hole 160-41a formed in the length direction in the center, and includes a side opening 160-41b, United with a through hole 160-41a and formed in the radial direction. When �electromotor works the working fluid is introduced into the through-hole 160-41a through the action of the impeller 160-15 and then is introduced into the interior of the motor through the side opening 160-41b.

A front end and a rear end of the rotor unit 160-40 densely adjusted by means of bushings 160-53 and 160-54 respectively, and bushings 160-53 and 160-54 are supported by appropriate bearings 160-51 and 160-52. Bearings 160-51 and 160-52 include a labyrinth seal 160-51a formed in helical and axial directions, and the smooth gliding between the shaft 160-41 and bearings 160-51 and 160-52 is formed by the working fluid passing along the labyrinth seal 160-51a. Consequently, the lubricating action is implemented by the carrier, which is a working fluid, which is transported by the pump, without the use of a separate lubricating oil. Therefore, since the sealing ring, etc. is not used during the period when temperature pump 160, there is no leakage of coolant due to damage o-rings.

Block 160-30 stator has a shape in which an electric wire is wound around the iron core 160-33 and is sealed by the cover 160-34 of the stator. Front end portion and rear end portion of the block 160-30 stator with�this software collection, flanges 160-31 and 160-32 thus, they are connected with the front housing 160-21 and rear case 160-32 respectively, as described above.

Auxiliary impeller 160-60 passageway for venting included into the inner space in which a rotor unit is mounted 160-40. In other words, the auxiliary impeller 160-60 deflates, so that the working fluid is introduced into the interior by means of rotation of the impeller 160-15 after the cooling device based on heat transfer for transformer regulated, and closes when the air is completely released.

Connector 160-70, which is a component that connects an electric wire, etc. block 160-30 stator with an external contact output, spaced from the high temperature of the block 160-30 of the stator at a predetermined distance through the extension tube.

As described above, since the coolant is injected and circulates in temperature pump 160, formed as a leaky pump with electric motor closed design to ensure the cooling effect and the lubricating effect of the electromotive node high temperature pump 160 without affecting the internal component of the electromotive node, the o-ring may be damaged, and may increase will continue�nost of life.

According to the device for melting the ice for the passage of a vessel according to an exemplary embodiment of the present invention, the ice has consistently melted using a coolant having a large heat capacity supplied to the high temperature pump, instead of opening the ice, quickly melting the ice, and because there is no need to use a thick steel plate to withstand the collision with the ice and crushed ice may be configured relatively less expensive and more efficient device. Therefore, it is possible to save a large amount of energy required in order to circumvent the waters with ice.

According to the device for melting the ice for the passage of a vessel according to an exemplary embodiment of the present invention, sealing can be maintained under vibration, or in high temperature environment by application type electric motor enclosed structure having a structure in which a coolant circulates in the high-temperature pump, therefore demonstrating consistent performance even in extreme environments.

The device for melting the ice for the passage of a vessel, as described above, does not apply solely to the configuration and method approximate Varian�s implementation described above. All or some of the above exemplary embodiments of the implementation can also be selectively combined with each other in such a way that can be done various modifications.

1. The device for melting the ice for the passage of a vessel that contains:
- boiler configured to heat the coolant;
- temperature pump, configured with the ability to carry the heated coolant;
- the heating casing made with the possibility of heating by means of the coolant carried by high-temperature pump, and is connected to the nasal compartment of the vessel; and
- the plant producing a jet of hot gas that is located in front of the heating casing with the possibility of ejection of the jet of air heated by the coolant.

2. The device according to claim 1, wherein the high temperature pump includes an electric hub and the impeller Assembly, which allows the electromotive node to carry a coolant, wherein the coolant circulates in the electromotive node.

3. The device according to claim 1, wherein the heating casing has the form of a metal plate having the shape of the blade that is in contact with the left and right surfaces of the nose compartment, and
- the inner part of the heating jacket comprises a first �teploobmenny node for providing heat exchange with the coolant.

4. The device according to claim 3, further comprising:
insulating plate located in contact with the nasal compartment heating jacket with the ability to block heat from the heating casing.

5. The device according to claim 1, further comprising:
- retractable frame, is arranged to protrude from the fore to the plant producing a jet of hot gas to keep the plant producing a jet of hot gas.

6. The device according to claim 5, in which a sliding frame buffer contains a node that is configured with the ability to buffer the plant producing a jet of hot gas.

7. The device according to claim 1, wherein the plant producing a jet of hot gas is in the transverse direction relative to the direction of movement of the vessel.

8. The device according to claim 1, wherein the plant producing a jet of hot gas includes:
- the compressor is arranged to convey air;
- second heat-exchange node that is configured to allow the coolant to heat the air; and
- the set of nozzles configured with the ability to quickly throw a jet of heated air.

9. The device for melting the ice for the passage of a vessel according to claim 1, further comprising:
the heating unit of a knife in the shape of the blade with the vertical location�the group in front of the heating casing, arranged to be heated by the coolant to melt the ice.

10. The device according to claim 9, in which the heating unit of a knife includes a third heat exchanger node to provide heat exchange with the coolant.

11. The device according to claim 9, further comprising:
- the control unit the position of which is configured with the ability to control the position and depth of the heating unit of a knife.

12. The device according to claim 1, wherein the carrier is an oil, which transfer heat at a temperature of 250-450°C.

13. The device for melting the ice for the passage of a vessel that contains:
- boiler configured to heat the coolant;
- temperature pump, is arranged to convey the heated coolant;
- the heating casing made with the possibility of heating by means of a fluid transported through a high-temperature pump, and is connected to the nasal compartment of the vessel; and
the heating unit of a knife having a blade shape with a vertical front from the heating jacket with the ability to be heated by the coolant to melt the ice.

14. The device for melting the ice for the passage of a vessel that contains:
- boiler adapted to be heated teplonositel�;
- temperature pump, is arranged to convey the heated coolant;
- the plant producing a jet of hot gas, made with the possibility of heating by means of the coolant carried by high-temperature pump, and front nose compartment of the ship, to pump the air heated by the coolant; and
the heating unit of a knife having a blade shape with a vertical front of the unit for production of jets of hot gas with the ability to be heated by the coolant to melt the ice.



 

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Ice breaker // 2406641

FIELD: transport.

SUBSTANCE: invention relates to ship building, particularly to ice breaker design and operation. Ice breaker has hull with bow representing a trimaran and consisting of the main hull inherent in ice breakers, and two side hulls. Lower part of bow end of the main hull is located below construction waterline. Side hulls are arranged on platform mounted atop the main hull and represent lateral ice breaking reamers extending forward and downward. Lateral edge of said reamers smoothly changes into the surface of freeboard in rear part, while, in front part, it is vertically flat. Lower edge of ice breaking reamers is located above construction waterline.

EFFECT: expanded performances, better maneuverability.

4 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: transport.

SUBSTANCE: invention relates to ship building, particularly to ice breaking facilities operated in combination with tug. Propose ice breaking adapter pushed by pusher tug is intended for making of navigable waterways in ices. Adapter hulls are composed of front and two lateral rigidly interconnected frame structure for tight contact with pusher tug. Said hulls feature a broken flat stern in shape approximating to triangle at waterline level. Lateral hulls feature equal width and are shifted downward from the main hull so that the line extending through their stems level with the waterline is spaced from the parallel line extending level with waterline through main hull stem-post at least 0.1 of the main hull width in its midship. Said lateral hulls are located on both sides from the main hull so that their midship planes are spaced from ice breaker midship plane by distance I defined by the formula: m, where Bf and Bl are widths of the front and lateral hulls in midship plane. Device for tight contact of said adapter with pusher tug is arranged at frame structure to extend by magnitude b making at least 3 m beyond the line passing through lateral hull stem-posts.

EFFECT: higher safety of navigation in ice.

1 dwg

FIELD: transport.

SUBSTANCE: invention relates to ship building, particularly, to surface scientific and research vessels. Scientific and research icebreaking vessel is proposed for carrying out 3D seismic technology exploration irrespectively to ice conditions which vessel has a hull where seismic equipment is located, as well as a shaft for bay cable laying. To move source of acoustic waves untethered unmanned submersible is used which bases on a vessel and is dropped and lifted via separate vertical shaft using running - pulling tool.

EFFECT: improved operational performance of scientific and research vessel for seismic exploration.

3 cl, 1 dwg

FIELD: physics, navigation.

SUBSTANCE: invention relates to seismic survey of underwater oil and gas deposits in Arctic seas. Disclosed is a vessel having a design which combines the advantages of a surface ship (high level of habitability, safety and a large deck area which enables maintenance and repair of seismic survey equipment) and advantages of a multipurpose underwater station, particularly use of hydroacoustic emitters and seismic cables towed in water under ice for 2D seismic survey. The towed seismic cables and hydroacoustic emitters are released using extensible structures mounted in vertical shafts in the bottom part of the vessel outside the ice region.

EFFECT: high reliability of seismic survey in ice conditions, reduced negative impact of seismic survey on the environment and marine ecology.

4 cl, 1 dwg

FIELD: transportation.

SUBSTANCE: invention relates to design of hull lines of a ship hull with higher icebreaking capability having a stem with a bulb. Eyes of a ship hull are proposed, having a bottom in the area of a midship frame with low or zero deadrise and boards close to vertical ones, comprising a bulb having in its upper part a straight or slightly bent rib, formed in the diametral plane during connection of the right and left surfaces of the bulb at the spatial angle of 30-150°, having an inclination forward to 30° to the plane of the waterline and crossing planes (levels) of the highest and lowest positions of the rated waterline of the ship in the head for different versions of its load. The upper surface of the bulb is made with gradual rise from its front part to the area of coupling with main hull lines, the length of the body part of the bulb in the longitudinal direction makes 4-5 theoretical spaces. Cross sections of the bulb vary slightly along the width from 1 to 3 of the theoretical frame. Coupling of the eyes with the bulb lines is made to form concavity of buttocks, stretching at the angle downwards from the start of coupling on the stem to the area of approximately 3-4 of the theoretical frame.

EFFECT: increased icebreaking capability of a ship and speed of its movement.

5 cl, 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.

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