Multifunctional deck transport ship

Abstract

The utility model discloses a multifunctional deck transport ship which comprises a main ship body and a dynamic positioning DP2 system, the main ship body is provided with a sinking mooring area, and the main ship body comprises a double-layer bottom deck, a middle deck, a main deck and a forecastle A deck. The dynamic positioning DP2 system comprises a bow thruster arranged on the bow portion of the ship and a pod thruster arranged on the stern portion of the ship. The multifunctional deck transport ship has the advantages of being high in maneuverability, high in maneuverability, longer in all-pass deck, wider in cargo transfer and loading and unloading operation range, higher in efficiency and high in safety.

Description

Technical Field

[0001] The utility model relates to the technical field of ships, and more specifically, to a multifunctional deck transport ship. Background Art

[0002] Deck carriers are specially designed for transporting oversized, heavy, and fully loaded cargo, such as container gantry cranes, tire-tyred cranes, rail-mounted cranes, and ship unloaders. Deck carriers can also transport offshore wind turbine equipment, bridge components, heavy machinery, and other equipment, and are suitable for wind farm service projects. Given the unique nature of their cargo, the design and construction of these vessels must comprehensively consider multiple technical factors, including but not limited to principal dimension restrictions, overall layout constraints, stability requirements, and environmental standards.

[0003] To accommodate the transport of large cargo, consideration must be given to cargo handling methods, such as roll-on / roll-off and skid-on. These requirements set limits on the vessel's draft and freeboard to ensure rapid adaptation to most terminals and efficient loading and unloading operations. If the cargo being transported is intended for use in offshore oil and gas projects, the vessel's width must be less than the span of the project's piers.

[0004] To ensure rapid roll-on / roll-off / slip-on positioning of oversized cargo on deck, the deck design prioritizes a fully open structure, free of permanent obstructions or the installation of easily removable temporary shielding. To facilitate the handling of cargo once on board, the vessel is equipped with a high-powered cargo winch. Furthermore, the vessel is equipped with lifting equipment such as forklifts and truck cranes to facilitate the installation and transportation of large tooling.

[0005] As transport vessels, energy consumption requirements are increasingly high. However, the significant difference in resistance between heavy and light loads when carrying oversized cargo creates polarized and conflicting technical requirements for propeller and main engine selection. The need to ensure safe navigation in harsh sea conditions while maintaining speed and energy efficiency for daily operations places even higher demands on propeller and main engine selection for these vessels.

[0006] Most deck carriers on the current market are converted from older vessels, limiting their performance and service life. Even newly built vessels fail to fully adapt to the shipping requirements of bulk cargo with a high center of gravity due to insufficient estimation of target cargo such as container gantry cranes and tire-mounted cranes. Furthermore, these deck carriers lack DP capabilities, significantly limiting their performance. Furthermore, the lack of auxiliary loading and unloading equipment reduces loading and unloading efficiency. Utility Model Content

[0007] The purpose of the utility model is to provide a multifunctional deck transport vessel to solve the technical problems in the prior art that deck transport vessels have no DP capability, resulting in significant limitations in their performance and low loading and unloading efficiency. The utility model has DP-2 dynamic positioning capability, a smaller main dimension, is suitable for most oil and gas projects, and has good dock adaptability.

[0008] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0009] A multifunctional deck transport vessel, comprising a main hull and a dynamic positioning (DP2) system. The main hull is provided with a sunken cable area. The main hull comprises a double bottom deck, an intermediate deck, a main deck, and a forecastle A-deck. The dynamic positioning (DP2) system comprises a bow thruster disposed at the bow and a podded thruster disposed at the stern.

[0010] The main deck is a full-length deck, and the bow of the main deck is equipped with a forklift storage area, an oxygen and acetylene storage area, and a positioning winch. A detachable gangway is provided near the forecastle A deck on the main deck.

[0011] The bow of the forecastle A deck is provided with a first living building and a warehouse, the stern of the forecastle A deck is provided with a deck crane and a cargo transfer winch, and the upper part of the forecastle A deck is provided with an upper deck layer, and the upper deck layer includes a B deck layer, a C deck layer, a driving deck layer and a top deck layer.

[0012] Furthermore, a ballast tank is provided on the double bottom deck, and the ballast tank is divided into an upper layer, a middle layer and a lower layer.

[0013] Furthermore, the middle deck is provided with a cable hole with a closing device and various equipment of the stern winch system.

[0014] Furthermore, the B deck is provided with a second living building, the C deck is provided with a third living building, the navigation deck is provided with a navigation cab, and the top deck is provided with a battery room and an air-conditioning room.

[0015] Furthermore, a first driving track and a cabin cargo hatch cover are arranged on the top of the forklift storage area, and the driving track extends into the warehouse; a second driving track is provided on the top of the oxygen and acetylene storage area.

[0016] Furthermore, a chimney is provided on the upper part of the third living building.

[0017] By adopting the above technical solution, the utility model has the following advantages:

[0018] This utility model provides a multifunctional deck transport vessel, comprising a main hull and a dynamic positioning (DP2) system. The DP2 system consists of a bow thruster and a podded propeller. This propulsion configuration offers the dynamic positioning capabilities of a DP-2, enhancing its competitiveness in wind farm-assisted operations under adverse sea conditions. The podded propeller, a first for a deck vessel, ensures high maneuverability, high efficiency, low noise, and low vibration. The use of the podded propeller improves the vessel's propulsion efficiency, simplifies maintenance, reduces downtime, and achieves lower operating costs throughout the vessel's lifecycle, fulfilling the goal of sustainable development. The main hull includes a double bottom deck, an intermediate deck, a main deck and forecastle A deck, and is equipped with various types of cargo transfer winches and positioning winches, which can cope with the smooth transfer of various types of heavy cargo on board and between the ship and the dock, thereby maximizing loading and unloading efficiency. The forklifts and deck cranes provided on board are all for the convenience of transferring heavy cargo on deck, ensuring the high efficiency performance of this ship among similar ship types. It is equipped with various types of warehouses and cranes, which improve the barrier-free movement and sorting of cargo in warehouses, decks and cabins, improve work efficiency and reduce costs, and ensure that the crew has a safe and comfortable working environment. Compared with conventional deck transport ships, it has the advantages of high maneuverability, strong mobility, a longer full-length deck, a wider range of cargo transfer and loading and unloading operations, higher efficiency and high safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings.

[0020] Figure 1 This is an overall layout diagram of the multifunctional deck transport ship of the present invention;

[0021] Figure 2 This is a schematic diagram of the layout of the main deck of a multi-purpose deck transport ship;

[0022] Figure 3 This is a schematic diagram of the layout of the middle deck of a multi-purpose deck transport ship;

[0023] Figure 4 This is a schematic diagram of the layout of the forecastle A deck of a multi-purpose deck transport ship;

[0024] Figure 5 This is a schematic diagram of the layout of the B deck layer of a multi-purpose deck transport ship. DETAILED DESCRIPTION

[0025] The following is a detailed description of the technical solution of the present invention in conjunction with the drawings in the specification. The detailed features and advantages of the present invention are described in detail in the specific implementation method. The content is sufficient to enable any technical personnel in this field to understand the technical content of the present invention and implement it accordingly. According to the description, claims and drawings disclosed in this specification, those skilled in the art can easily understand the relevant purposes and advantages of the present invention.

[0026] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 The vessel is a multi-purpose deck carrier capable of handling a maximum of 12,000 tons of cargo for roll-on / roll-off and roll-off at the stern and a maximum of 2,500 tons for roll-on / roll-off and roll-off at the side. Its deadweight does not exceed 30,000 tons, and it can efficiently transfer and organize cargo on the deck. This vessel also boasts the largest full-length deck area among ships of its size. Its deck length-to-overall length ratio is the highest. It comprises a main hull 1 and a dynamic positioning (DP2) system. The DP2 system consists of a bow thruster 15 at the bow and two podded thrusters 14 at the stern. This propulsion configuration provides DP2 dynamic positioning capabilities, ensuring the vessel's navigation and DP2 dynamic positioning functions. The podded thrusters 14 save space at the stern, improving the vessel's competitiveness in wind farm-assisted operations in adverse sea conditions.

[0027] The main hull 1 is equipped with a sunken mooring area 13 and adopts a double bottom structure, including, from bottom to top, a double bottom deck, an intermediate deck, a main deck 12, and a forecastle A deck 2. The length of the deck can be further increased or decreased according to the configuration and function of the ship's equipment. Each deck has a different functional configuration to meet the requirements of the ship itself and the installation requirements of functional equipment.

[0028] The double-bottom deck is equipped with void compartments, stern thruster compartments, ballast tanks, pump rooms, fuel tanks, engine rooms, bow thruster compartments, etc. from the stern to the bow; ballast tanks are provided on the double-bottom deck. The ballast tanks have three layers in total, which are divided into upper, middle and lower layers, so as to improve the ship's movement performance and safety in transshipping various types of cargo.

[0029] The middle deck, from stern to bow, houses the stern mooring room, stern thruster room, ballast tank, pump room, fuel tank, engine room, control room, and bow thruster room. The stern mooring room is used to stabilize the ship's position during loading and unloading of heavy cargo. Its steel cable runs the entire width of the deck, with drum mooring winches 23 located on the left, center, and right sides to secure the mooring line at the stern. A transversely positioned electric winch is added in the center to secure the mooring line to the left and right sides. Below the freeboard deck, a mooring eye 25 with a closing device and various equipment 24 for the stern winch system are located. The mooring eye 25 remains watertightly closed during navigation. The various equipment 24 for the stern winch system are used as auxiliary equipment for loading and unloading, assisting in securing the ship's mooring lines and moving large cargo.

[0030] The main deck 12 is a full-length deck, equipped with all necessary removable equipment, enabling skid-on, roll-on, and other loading and unloading methods. The bow section of the main deck houses a forklift storage area 11, an oxygen and acetylene storage area, and a positioning winch 18. The oxygen and acetylene storage area comprises an oxygen storage room 17 and an acetylene storage room 19, and the forklift storage area 11 spans two deck levels. A first track extends from the top of the forklift storage area 11 into the warehouse on the forecastle A deck. The forklift storage area 11 also houses an engine room hatch, allowing the track to cover the path for moving heavy objects from the main deck to the engine room, from the main deck to the warehouse, and from the warehouse to the engine room. A second track 20 is located atop the oxygen and acetylene storage area on the main deck, allowing oxygen and acetylene cylinders to be moved and sorted within the forklift storage area by forklift, reducing the crew's operational burden and improving work efficiency. A detachable gangway 16 is located on the main deck 12 near the forecastle A-deck 2, ensuring safe evacuation of personnel. Two sunken bollards are located on each side of the main deck, along with fire hydrants and fire hoses. At the transition between the main deck and forecastle A-deck, the upper structure is recessed to reduce the structural dimension, further shortening the forecastle length and ensuring full accessibility of the main deck area.

[0031] The bow of forecastle A-Deck 2 features the first accommodation building 3. Aft of forecastle A-Deck is equipped with a deck crane 9 and a cargo winch 10. Above forecastle A-Deck are the superstructure decks, which include B-Deck, C-Deck, the bridge deck, and the top deck 7. B-Deck houses the second accommodation building 4, C-Deck houses the third accommodation building 5, the bridge deck houses the pilothouse 6, and the top deck 7 houses the battery room and air conditioning room. The accommodation building can be arranged in different levels to accommodate the crew size, accommodating approximately 30 people. The pilothouse 6, located atop the third accommodation building 5 on C-Deck, features large floor-to-ceiling windows and large half-frame windows facing the bow, offering a wide field of view. The large floor-to-ceiling windows, particularly those facing the main deck, provide an unobstructed view of operations on the command deck.

[0032] Warehouse 22 and living and office areas are also located on Forecastle A Deck 2. Fueling stations, fuel hose cranes, lifeboats 21, life rafts, and anchoring and mooring equipment are located on both port and starboard sides. Warehouse 22 is located in the aft area of ​​Forecastle A Deck 2 and can be equipped with shelves as needed.

[0033] The positioning winch 18 and the cargo transfer winch 10 at the rear end of the B deck, a total of 11 winches, together form a heavy-duty cargo transfer system that covers the entire length of the ship and is three-dimensional and multi-directional, maximizing the efficiency of cargo loading and unloading. It can be used for the ship to position and move cargo with maximum efficiency during loading and unloading operations. It can also be anchored and positioned in shallow water areas such as wind farms to carry out auxiliary support operations. The deck crane 9 is arranged on both sides of the B deck of the second living building and can be used for lifting small equipment and spare parts as a supplement to the cargo movement system. The upper part of the third living building 5 is also equipped with a chimney 8, air ducts and living function cabins for daily life.

[0034] Finally, it should be pointed out that although the present invention has been described with reference to the current specific embodiments, ordinary technicians in this technical field should realize that the above embodiments are only used to illustrate the present invention and are not used to limit the present invention. Various equivalent changes or substitutions can be made without departing from the concept of the present invention. Therefore, as long as the changes and modifications to the above embodiments are within the scope of the essential spirit of the present invention, they will fall within the scope of the claims of the present invention.

Claims

1. A multifunctional deck transport ship, characterized in that: The vessel comprises a main hull and a dynamic positioning (DP2) system. The main hull is provided with a lowered cable area. The main hull comprises a double bottom deck, an intermediate deck, a main deck and a forecastle A-deck. The dynamic positioning (DP2) system comprises a bow thruster at the bow and a podded thruster at the stern. The main deck is a full-length deck, and the bow of the main deck is equipped with a forklift storage area, an oxygen and acetylene storage area, and a positioning winch. A detachable gangway is provided near the forecastle A deck on the main deck. The bow of the forecastle A deck is provided with a first living building and a warehouse, the stern of the forecastle A deck is provided with a deck crane and a cargo transfer winch, and the upper part of the forecastle A deck is provided with an upper deck layer, and the upper deck layer includes a B deck layer, a C deck layer, a driving deck layer and a top deck layer.

2. A multifunctional deck transport ship according to claim 1, characterized in that: The double bottom deck is provided with a ballast tank, which is divided into an upper layer, a middle layer and a lower layer.

3. A multifunctional deck transport ship according to claim 1, characterized in that: The middle deck is provided with a cable hole with a closing device and various equipment of the stern winch system.

4. A multifunctional deck transport ship according to claim 1, characterized in that: The B deck is provided with a second living building, the C deck is provided with a third living building, the navigation deck is provided with a navigation cab, and the top deck is provided with a battery room and an air-conditioning room.

5. The multifunctional deck transport ship according to claim 1, characterized in that: A first driving track and a cabin cargo hatch cover are arranged on the top of the forklift storage area, and the driving track extends into the warehouse; a second driving track is provided on the top of the oxygen and acetylene storage area.

6. A multifunctional deck transport ship according to claim 4, characterized in that: A chimney is also provided on the upper part of the third living building.

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