CA2810502A1

CA2810502A1 - Boat dock, commercial

Info

Publication number: CA2810502A1
Application number: CA2810502A
Authority: CA
Inventors: Igor Alekseevich Zotov; Yuriy Victorovich Eryomin
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-09-20
Filing date: 2011-06-17
Publication date: 2012-03-29
Also published as: WO2012039644A1; KR20140011238A

Abstract

The invention relates to boat building. A dock chamber within a boat dock structure (1) is in the form of a shed (2) for accommodating large boats (8), medium-sized boats (12) and small boats (13), and a channel (7) is located in the lower part of the shed (2). The channel height is not less than the maximum draught of a large boat, and the channel width is not less than the maximum width of a large boat. Ledges (11) are located along the upper borders of the channel with a symmetrical depth on the right and left towards the structure, wherein the width of said ledges is not less than the width of a medium-sized boat, wherein the width of the shed (2) is equal to the total width of the channel and two ledges. The height of the shed (2) is not less than the maximum height of a large boat, and the length of the shed is equal to the length of the channel and should be not less than two lengths of a large boat. The boat dock is equipped with rear movable gates (9) and with at least one set of internal movable gates (10) dividing the channel (7) into a minimum of two equal parts. The claimed boat dock should be versatile and is intended not only for supplying boats to the fishing industry but also can support independent business.

Description

BOAT DOCK, COMMERCIAL

A)(Pertinent art).
The invention relates to shipbuilding, in particular, dock vessels.
B) Prior Knowledge.
A dock vessel is known that comprises a dock chamber, mobile gate for closing of a dock chamber, ballast tanks equipped with flood valves and air vent valves, adjustable supporting units for carried ships, compressed air system connected to the ballast tanks through the pressure feed valves. The dock vessel is fitted with retractable supports rigidly centering a carried ship, specifically, submarine, gangway lifting bridge mounted so that it is capable to move lengthwise over a dock chamber, remote control system of mechanisms of approach-leaving, installation and positioning of carried ships into operating position inside the dock chamber and complex of the lifting mechanisms (RF patent No. 2326786, B63B
35/44, B63C, pub!. on 20.06.2006).
A major drawback of this dock vessel is a possibility to take inside the dock chamber a limited number of ships hereupon the economic efficiency of such dock vessel is not great.
A dock vessel is known that has a double bottom and double boards and takes aboard four floating touristic hotels each of which is equipped with four retractable supports; push-tug transported aboard the ship and used for transportation of hotels when loading and unloading. The dock vessel is designed for simultaneous transportation of two hotels and push-tug. The complex's operation is performed as follows. Two floating hotels are moored and take tourists aboard. The dock vessel opens the doors of the forward end, pumps the ballast water to the tanks of double bottom and double boards and is submerged to the docking draught which produces in the box-type hold a water level sufficient for bringing of hotels. The push-tug brings the hotels in turn to a hold and then enters itself.

The dock vessel pumps out the ballast, closes the fore doors, the hotels and push-tug are lowered to the cargo deck and fixed on it with locks (found in Internet on 23.08.2010, www.inno.ru/proj ect/15958).
To the drawbacks, the fact that the dock vessel takes the floating hotels on the part of bow should be assigned, in consequence of which it was not suited to perform the fishing activities. In addition, its operation is impossible under conditions of ocean navigation.
A cruise dock vessel is the closest to the claimed technical decision in the number of essential features. A cruise dock vessel has the double hull inside which a dock chamber with the dock floor is made and the side walls are mounted over the hull. On three sides of the dock chamber, the ballast compartments are mounted while, on the fourth side, there is a mobile gate (floating dam) for closing of the dock chamber. On the dock floor, the adjustable transportation supports are mounted to secure the carried ships. The ballast compartments are fitted with the flooding valves in the outside and adjacent to the dock chamber walls as well as vent valves.
The compressed air system is connected by pipelines with the ballast compartments through the pressure feed valves (RF patent No. 2085433, B63B 35/42, pub!. on 27.07.1997).
As the drawbacks of the known dock vessel, a limited number of taken ships, impossibility to perform the fishing and cargo technological operations when processing take and raw fish are considered.
B) Disclosure of the invention A problem solved by the claimed invention is a making of the cost-effective catching dock vessel allowing to serve a significant number of ships with different displacements, to arrange their fishing operations, to make processing of raw fish and to independently catch fish and sea foods, to maintain the vessels; to provide the comfort living conditions of crews of these ships, to improve the safety of operation of ships of different types, to use ships of different types with achievement of admissible economic performances.

The solving of the assigned task is provided by the fact that, in the known dock vessel having a hull with decks and double bottom, the dock chamber equipped with the stern mobile gate, ballast compartments equipped with the flooding valves and vent valves are placed and, according to the claimed invention, the dock chamber for simultaneous placement of large, medium and small ships is made in the form of hangar bounded by a ceiling, side walls and end walls and, at the bottom of hangar, a channel is situated. The height of the channel is not less than that of maximum draft of a large ship while the channel width should be not less than maximum width of a large ship. Along the upper boundaries of the channel, the rack-ledges with symmetrical deepening to the right and left, toward the hull, are placed, in so doing, the width of the rack-ledges is not less than the width of medium ship and the hangar width is equal to overall width of channel and two rack-ledges. The hangar's height from the double bottom of the hull to the hangar's ceiling is not less than maximum height of a large ship or distance from the rack-ledges to the hangar's ceiling should be not less than a height of medium ship while the hangar's lengths is equal to channel's length and should be not less than two lengths of a large ship. The stern mobile gate for closing of a hangar is situated in its end wall located in the after body of the dock vessel and has height and width providing an entering and going out of a large ship from a hangar. In addition, the dock vessel is additionally equipped, at least, with one internal mobile gate dividing the channel into two equal parts, a distance between the internal mobile gate and forward end wall as well as between the internal and stern mobile gates should be not less than a length of a large ship. The fore body of the dock vessel is equipped with a niche for mounting of operating winches placed at the height exceeding the maximum water level in the channel. At the ceiling of hangar, the mobile winches for lifting of ships to the rack-ledges and performing of cargo operations aboard the vessels and ships are placed;
the engine rooms of the dock vessel are under the racks-ledges in the after body with placement of screw propellers on each side of a channel.
Making of the dock chamber in the form of hangar bounded by a ceiling, side walls and end walls, at the bottom of which, a channel is situated, and availability, in addition to the channel for basing of large ships, of the racks-ledges for placement of medium and small ships by way of change of the base ship draft as well as use of crane make it possible to start, in the shortest time possible, the fishing operations. It allows to carry out the tactical search by large ships of fish concentrations, fishing off and putting of medium and small ships on these concentrations. In this situation, the dock vessel, exercising a function of the base vessel in the expedition, provides the surveillance over the fleet and executes the subsidiary fishing operations, for example, as an illuminating ship. If necessary, the dock vessel, having on its board the highly professional specialists, carries out the salvage operations. By virtue of insignificant remoteness of the ships from the base vessel, a fuel is saved, raw fish is in good time delivered and processed, a comfortable relaxation of the crews of small, medium and large ships and their high-quality medical services are provided and the normal psychological situation is created because only the vessel of great displacement is capable to provide the necessary conditions for crews which is, in principle, impossible not only on board of small but also on board of medium ships.
The ceiling, side and end walls of a hangar are designed to protect the ships and their crews against environmental loads, especially, wind, rough water, snow etc.
In order to reach the claimed technical result, each rack-ledge has a length providing a placement on it of not less than two medium or four small ships. A

placement in the vessel's hangar of not less than two large ships, not less than four medium ships and not less than eight small ships allows to reach high economic results at the expense of delivery of considerable amount of raw fish by ships to the dock vessel.

Thanks to a considerable number of ships, administration of the dock vessel exercising in the expedition a function of the base vessel has the opportunity to vary the number and quality of ships being on board in order to achieve maximum economic results at minimum expenses. In order to enable the safe arrangement of small ships on the racks-ledges, the capacities of mobile winches should be not less than mass of a small ship.
A making of the channel in the after body with the trapezoidal widening in which a V-type perforated ramp with its fore part loosely joined with the double bottom of hull in the after part of the channel is installed not only reduces the impact effect of waves on the after mobile gate designed for closing of the dock chamber on the move of the dock vessel when hoisting the V-type perforated ramp but also provides a trouble-free going of ships into the channel with lowered V-type perforated ramp. The medium and large ships go into and come out of the channel if only the dock vessel draft changes to the needed one. The small ships can be placed to the channel using the mobile winches which are accommodated in the hangar ceiling.
The overall dimensions of the hangar (its height and width) provide a possibility of accommodation in it of maximum possible large ship while the overall dimensions of this ship should be sufficient for making of an independent fishing in isolation from the base vessel. In so doing, the vessel should have the unlimited navigation area at minimum dimensions; for example, large ships should have a length of 30 m and more, width of about 9 m, maximum draft of about 4 m and displacement of about 500 t.
A presence of additional internal mobile gate provides a safe placement of two and more large ships; in this case, the channel width should be not less than maximum width of a large ship. In addition, the internal mobile gate provides a suppression of the longitudinal wave generated due to ship pitching while a possibility of water pumping out from the space between gates allows to prevent a forming of free surface that can exert a detrimental effect on the vessel's stability.
As the medium ships, those of 12 ¨ 30 m in length, 6 m in width and having the maximum draft of about 2m and displacement of up to 150t can be used. The navigation zone of these ships is limited by distance of 50 miles from the shelter.
The small ships a total number of which is not less than eight are operated in seas not higher than 4 points on the scale. They are capable to provide the operating fishing and communication with the land-based enterprises, including servicing of fixed nets, catching of squids and Pacific saury, quick delivery of takes to board of the dock vessel, safe receipt of raw fish within the hangar. These ships are characterized by a length of about 12 m, width of about 2/5 m, maximum draft of 1 m and displacement of 1.5-3 tons.
For domestic lighting and lighting of hangar, in addition to existing marine diesel-generators, the light sensors with accumulator batteries which are mounted along the perimeter of the dock vessel hull are used while the hangar's ceiling and side walls are equipped with hermetic LEDs (light emitted diode). It creates the possibility for the shift work of a crew and its good relaxation in the cabins (living accommodations) located along the perimeter of the dock vessel hull, along the boards where the light sensors with accumulator batteries are located as well as in the fore and after parts of the dock vessel. Mounting of hermetic fishing lights of increased capacity along the perimeter of the dock vessel hull allows it to independently catch the hydrobionts positively reactive to light. As the lights, the known fishing lights, in particular, lights according to the RF patent No.
2320101.
Providing in the hangar ceiling of not less than two pluggable openings in the form of hold hatches for canning and finished products provides the loading operations of the heavy-tonnage ships and base ship holds as well as natural ventilation of the hangar.
The placement of cranes on the upper deck of the dock vessel allows to perform the loading-unloading operations.
Fitting of the stern mobile gate with the V-type perforated ramp prevents a hard contact between the ships entering the stern mobile gate and the dock vessel, especially, in case of pitching motions. In addition, the expanding cutout in the after body of the V-type perforated ramp allows also to avoid hard contacts of the dock vessel hull with stemposts of incoming ships.
Equipping of the dock vessel with the warp winches with a warp passing through the warp rollers allows it to execute the technological operations as well as fishing operations with the use of a fishing gear that is mounted in the channel. A
control of the warp winches is exercised from the trawl bridge located under the hangar using the automatic control system.
D) Brief description of the views of drawings.
In Fig. 1, a starboard elevation of the dock vessel is presented.
In Fig. 2, a section of the dock vessel is presented along the level of locating the racks-ledges.
In Fig. 3, a general plan view of the dock vessel is presented.
In Fig. 4, a rear view of the dock vessel is presented.
In Fig. 5, a cross-section of the dock vessel is presented.
E) Best mode of realization of invention.
The dock vessel comprises a hull 1 with double bottom 6, inside the hull 1, the hangar 2 is situated which has a ceiling 3, side 4 and end walls 5, channel 7 located in the bottom portion of the hangar 2 and designed for placement of large 8 ships, stern 9 mobile gate and internal 10 mobile gate designed for dividing the channel with the view of safe arrangement of large 8 ships in the channel 7 and on the rack-ledges 11 located along the upper boundaries of the channel 7 with symmetric deepening to the right and to the left toward the hull 1. In this case, a width of racks-ledges 11 should be not less than a width of medium 12 ship and a width of hangar 2 and double bottom 6 is equal to the total width of the channel 7 and two racks-ledges 11, a height of hangar 2 from the double bottom 6 of hull 1 to a ceiling 3 of hangar 2 should be not less than maximum height of a large 8 ship or distance from the racks-ledges 11 to a ceiling 3 of hangar should be not less than a height of medium ship. At each of racks-ledges 11, not less than two medium 12 ships and not less than four small 13 ships are placed (a total of not less than four medium and eight small ships are housed) which are taken into the channel 7 using mobile winches 14 mounted at a ceiling 3 of hangar 2. In this case, a length of hangar 2 is equal to the length of channel 7 and should be not less than two lengths of a large 8 ship.
The ballast compartments (not shown in drawings) are arranged within the space between the side 4 walls of hangar 2 and hull as well as in the double bottom 6 of hull 1 of the dock vessel, fitted with flooding valves and vent valves (not shown in drawings). A niche 15 for installation of operating 16 winches is situated in the fore body of the dock vessel, at the height exceeding maximum level of water in the channel 7; engine rooms 17 of the dock vessel are located under the racks-ledges 11 in the afterbody with mounting of the screw propellers 18 on each side of the channel 7. In the after body, the channel 7 has a trapezoidal expansion in which the V-type perforated ramp 19 is arranged, at that its fore part (not shown in drawing) is loosely joined with the double bottom 6 of hull 1 in the rear part of the channel 7.
Along the perimeter of the upper part of the dock vessel, the light sensors with accumulators (energy storage units) 20 are mounted. In order to provide an adequate illumination level at work places inside the hangar, a ceiling 3 and side 4 walls are fitted with hermetic LEDs (light emitted diodes) (not shown in drawings). The freezing 21 tanks arranged in the hull 1 between hangar 2 and boards of hull 1 closer to the double bottom 6, are designed for conservation of raw fish. The access holes 22 for unloading of frozen products pass through the process compartments 23 and end at one of the decks of the hull 1 of the dock vessel. Tanks for fuel, water and process liquid (for example, oil) are located under the engine 17 compartment in the double bottom 6, in the lower part of the hull 1 of the dock vessel. The process compartments 23 (compartments for processing of raw fish) are located over the freezing 21 reservoirs; holds 24 for canning and finished products are arranged over the process compartments 23, and living accommodations (cabins) 25 are located along the perimeter of hull 1 of the dock vessel, along the boards close to light sensors with accumulators 20 as well as in the fore and after parts of the dock vessel.
At a ceiling 3 of hangar 2, the openings 26 are made in the form of access holes of holds 24 for canning and finished products. The openings 26 are designed for natural ventilation and for loading and unloading of large 8 ships and holds 24 of the dock vessel. The loading-unloading operations are performed by cranes 27 arranged on the upper deck 35 of the dock vessel. By the stern of the dock vessel, the fish working deck 28 is located at which the warp winches 29 are installed with wound on them warp 30 passing through the warp rollers 31. For control of the warp winches 29, a trawl bridge 32 is placed over the hangar 2. In the fore part of the hull 1, a thruster 33 is installed. A control of the vessel's stability is exercised by means of the automatic control system 34 placed in the trawl bridge 32. The automatic control system 34 controls a sequence and level of filling of the fore, stern and board ballast compartments (not shown in drawings).
The claimed invention works as follows.
The dock vessel is filled with ships. For entering of the ships inside the hangar 2 of the hull 1 of the dock vessel, the stern 9 mobile gate and internal 10 mobile gate open and the V-type perforated ramp 19 is turned down. The ballast compartments (not shown in drawings) overflood through the flooding valves as a result of which a ship submerges and hangar 2 is filled with water. A control of the dock vessel flooding is exercised by the automatic control system 34 installed in the trawl bridge 32 located over the hangar 2. The control system 34 regulates also the oscillating motions of the dock vessel through the antiroll stabilizers (not shown in drawings).
The end 5 and side 4 walls of the hangar restrict the motions of ships inside the hull in case of pitching and rolling and contribute to fixation of ships in their proper locations. After flooding of a channel 7 and racks-ledges 11 of hangar 2 to the draft level of medium 12 and small ships 13, these ships enter a channel 7 and are fixed in proper locations of the racks-ledges 11, at that, the medium 12 ships enter independently the racks-ledges 11 while small 13 ships are installed using the mobile winches 14. Upon that, water is pumped out of the hangar 2 to a level of a channel 7 filling and a large ship 8 enters a channel 7 through the stern mobile gate 9 and is arranged in the fore end of a channel 7. Upon that, the internal 10 mobile gate closes and exhaustion of water out of the fore end of a channel 7 begins, simultaneously with water pumping out, the following large ship 8 enters a channel 7. After its arrangement in the rear part of the channel, the stern 9 mobile gate close, a ramp 19 is lifted and exhaustion of water out of the rear end of a channel 7 begins.
Upon completion of pumping out, main engines (not shown in drawing) are started, and the dock vessel 18 moves to the fishing area using the screw propellers 18. In the fishing area, a channel 7 overfloods until the water level in the channel 7 rises to the level of water surface outboard the dock vessel. Upon completion of filling the channel 7 with water, the stern 9 mobile gate opens, the V-type perforated ramp lowers and large 8 ship located in the rear end of a channel 7 leaves the channel 7 in reverse and proceeds to fishery. Subsequently, the fore end of the channel 7 is filled with water, internal 10 mobile gate opens and the second large 8 ship leaves the dock vessel to start a fishery. Further, the water level in the channel 7 rises to the water line of medium 12 and small 13 ships and they enter by turn the channel 7 and move also to the fishing area. In this case, the manholes 26 of holds 24 for canning and finished products are opened to remove the exhaust gases produced as a result of engine operation of large 8 ships.
Upon completion of fishing activities, the ships return to hangar 2 in the reverse sequence: at first, small 13, then medium 12 and, finally, large 8 ships. The medium 12 ships are by pairs fixed on the racks-ledges 11 and, after accepting the reports of masters of terminating their fixation on the racks-ledges 11, the water pumping out of the channel 7 begins. Closing of internal 10 mobile gate of the channel is also performed when the wind and sea intensify. A decision of their closing is made by the leader of an expedition. The large 8 ships enter the channel 7 last, because they ensure safety of ships remaining on the sea. Upon completion of operation of small 13 and medium 12 ships and their placing on the racks-ledges 11, the first large 8 ship enters the channel and is fixed in the fore end of the channel 7. After entering the ships, the V-type perforated ramp 19 rises. In the course of entering the ships, it prevents a hard contact between ships entering the stern 9 mobile gate and dock-vessel, especially in case of pitching oscillation.
The second large 8 ship enters the channel, the stern 9 mobile gate closes and water is pumped out of the rear end of the channel 7 and large 8 ship falls on the keel-blocks (not shown in drawing).
The fixation of ships in the channel 7 and on racks-ledges 11 is performed by the crew by a command of the officer of mooring operations and he takes also a readiness report.
The heavy-tonnage ships can remain on the sea when deteriorating the hydrometeorological conditions or perform the fishing activities over a distance of the dock vessel. Under these conditions, the dock vessel can carry out the fishing when medium 12 and small 13 ships are on-board. During fishing operations, the fishing gear (not shown in drawing) with harvest is dragged to the rear part of the channel 7 using the operational winches 16 located in a niche 15 and fish is taken out of the cod end by standard fish pump or the cod end of the fishing gear is freed from fish with the aid of the mobile winches 14. A control over fishing activities is exercised from the trawl bridge 32, if the fishing gear is over the side of ship, operations within the hangar are executed by mobile 14 and operational 16 winches.
When the dock vessel performs the fishing activities, the fishing gears (not shown in drawing) are hauled in using the warp winches 29 with the warp 30 wound on the winch drums of through the warp roll 31. Further, the fishing gear is delivered into the channel 7 using the operational winches 16 and the cod end (not shown in drawing) is freed from fish. The harvest is directed to the process compartments 23 for processing or freezing chambers 21 using the fish pumps or standard conveyors.
In case of overload of the freezing chambers 21, an unloading of a part of frozen products is performed by cranes 27 through the manholes 22 of the freezing chambers 21.
Changes in the dock vessel draft to the needed limits, stability control and operation of stabilizers are initiated by the instructions of the automatic control system 34. Under the commands of the automatic control system 34, the proper pumps and ballast compartments are turned on and turned off. In case of loss of control over the dock vessel's stability due to unfavorable sea state and wind force, the manual operation of these mechanisms is provided for using the automatic control system 34. A manoeuvring of the dock vessel in the fishing area is executed with the use of screw propellers 18 and thruster 33. This allows not only to efficiently manoeuvre but also provides a fail-safe going of ships into the stern 9 mobile gate.
E) Industrial applicability.
The use of the claimed dock vessel as a transport vessel allows to quickly deliver to the fishing area a considerable quantity of ships of different types and to deploy the fishery expedition. In the fishing area, the dock vessel exercises the functions of the mother ship. In doing so, it conducts the maintenance of ships delivered to the fishing area, organizes the fishing activities, takes the harvest and processes the raw fish. The dock vessel can also carry out the independent fishing operations.

In addition, the dock vessel provides the comfort living conditions for the crews of ships of different types, especially, medium and small ships delivered by it to the fishing area and improves a safety of operation of these ships.

Claims

1. A dock vessel comprising a hull with decks and double bottom, inside the hull, a dock chamber equipped with the stern mobile gate is located, ballast compartments fitted with flooding valves and vent valves, characterized in that the dock chamber is made in the form of an hangar designed for the arrangement of large, medium and small ships and bounded by a ceiling, side walls and end walls, in the bottom part of hangar, a channel is situated, this said, a height of the channel is not less than a height of maximum draft of the large ship while a width of the channel is not less than maximum width of the large ship; along the upper boundaries of the channel, the racks-ledges are located with a symmetric deepening to the right and to the left, toward the hull, this said, a width of racks-ledges is not less than a width of medium ship; a width of hangar is equal to total width of the channel and two racks-ledges while a height of an hangar from the double bottom of the hull to the hangar ceiling should be not less than maximum height of large ship or a distance from the racks-ledges to a ceiling should be not less than a height of medium ship, a length of hangar is equal to a length of the channel and should be not less than two lengths of a large ship; stern mobile gate for closing of an hangar are located in its end wall being in the stern part of the dock vessel, has a height and width providing an entering and exiting of a large ship out of the dock chamber; the dock vessel is additionally equipped at least with one internal mobile gate dividing the channel into not less than two equal parts, a distance between the internal mobile gate and fore end wall of an hangar as well as between the internal and stern mobile gates should be not less than a length of a large ship; fore body of the hull is equipped with a niche for mounting of the operational winches located at a height exceeding maximum water level in the channel; on the hangar ceiling, the mobile winches are mounted, the engine rooms of the dock vessel are located under the racks-ledges in the after part of the hull with mounting of the screw propellers on each side of the channel.

2. The dock vessel as defined in claim 1, characterized in that a rack-ledge has a length providing an arrangement on it not less than two medium and not less than four small ships.

3. The dock vessel as defined in claim 1, characterized in that a channel in the after part has a trapezoidal expansion in which the V-type perforated ramp was installed, at that, its fore part is loosely joined with the double bottom of the hull in the after part of the channel.

4. The dock vessel as defined in claim 1, characterized in that the capacity of mobile winches should be not less than a small ship mass.

5. The dock vessel as defined in claim 1, characterized in that, along the perimeter of the dock vessel hull, the light energy converters with accumulator batteries are mounted.

6. The dock vessel as defined in claim 1, characterized in that the hangar's ceiling and side walls are equipped with hermetic light emitted diodes.

7. The dock vessel as defined in claim 1, characterized in that, along the perimeter of the dock vessel hull, the hermetic fishing lamps of increased power are mounted.

8. The dock vessel as defined in claim 1, characterized in that, in the ceiling of hangar, not less than two closing holes in the form of hold manholes for canning and finished products.

9. The dock vessel as defined in claim 1, characterized in that cy~HO-~OK
CHa~HO KpaHaM~, pa3MeIIIeHH~IM~ Ha BepxHe~ IIa~y~e cy~Ha-~OKa.

10. The dock vessel as defined in claim 1, characterized in that, in the after end of the dock ship (vessel), the fish deck is situated on which the warp winches are mounted with a warp passing through the warp rollers.

11. The dock vessel as defined in claim 1, characterized in that it is fitted with the automatic control system installed in the trawl bridge being over an hangar.

12. The dock vessel as defined in claim 1, characterized in that it is equipped with the fishing gear placed in the channel.