A mud tank convertible to a moon pool

Abstract

The utility model provides a mud cabin can be converted into moon pool, including cabin, grouting pipe, suction pipe and bottom inclined plate, the cabin sets up under the main deck of ship body, the periphery lateral wall of cabin bottom all is provided with bottom inclined plate, the bottom inclined plate constitutes the aggregate mouth of big lower small four prism platform structure on the cabin bottom, one side lateral wall of cabin is connected with grouting pipe, the other side lateral wall of cabin is connected with suction pipe, adopt above -mentioned technical scheme, suction pipe will mud delivery to cabin, make cabin can be used as mud cabin use, when need conversion moon pool, through suction pipe empties the mud in cabin, again through flame cutting machine or other cutting tool cut off bottom inclined plate and bottom outer plate and upper main deck of cabin bottom, cut off grouting pipe, suction pipe part extending to cabin again, through welding gun to grouting pipe and suction pipe opening stop up, make cabin complete conversion into moon pool.

Description

Technical Field

[0001] This utility model relates to the field of shipbuilding and marine engineering, and in particular to a mud chamber that can be converted into a moon pool. Background Technology

[0002] A moonpool is a vertical access channel between the deck and the bottom of a ship or offshore platform, and is one of its key special structures. It provides a protected "still water zone" for various underwater operations, and its main functions include, but are not limited to: deploying and recovering remotely operated vehicles (ROVs), autonomous underwater vehicles (AUVs), deep-tow systems, and subsea drilling rigs; providing a safe access route for diving operations; and in some drilling operations, the drill string can also reach the seabed directly through the moonpool. The moonpool structure greatly improves operational efficiency and safety, preventing equipment from being directly impacted by wind and waves on the ship's side. For certain vessels with specific missions or operating modes, the lunar pool may not need to be used continuously throughout its entire life cycle. For example, a drilling vessel may only perform drilling operations on some voyages, while it may need to perform ROV inspections or equipment deployment tasks on other voyages; a multi-purpose research vessel may also decide whether to activate the lunar pool function depending on different research missions. In existing technologies, the design of a ship is usually determined at the initial stage of construction whether or not a moon pool will be included. Once a ship is designed without a moon pool, its internal compartment space will be used to house other functional compartments, such as mud tanks, ballast tanks, and cargo holds. Currently, there is a lack of a solution that can flexibly adapt to the needs of different operating modes of the ship. Utility Model Content

[0003] (a) Technical problems to be solved To address the aforementioned problems in the prior art, this utility model provides a mud chamber that can be converted into a moon pool.

[0004] (II) Technical Solution To achieve the above objectives, the main technical solutions adopted by this utility model include: A mud chamber that can be converted into a moon pool includes a chamber body, a grouting pipe, a grout suction pipe, and a bottom inclined plate; The cabin is located below the main deck of the ship. The bottom sidewalls of the cabin are provided with bottom inclined plates, which form a material collection port with a large upper and small lower quadrangular truncated pyramid structure at the bottom of the cabin. The grouting pipe is connected to one side wall of the chamber, and the suction pipe is connected to the other side wall of the chamber.

[0005] Preferably, the hull has isolation compartments around the perimeter and at the bottom of the hull. These isolation compartments are pre-designed and kept vacant. When the hull wall is damaged, seawater will preferentially flow into the isolation compartments.

[0006] Preferably, the isolation chamber is equipped with multiple isolation panels, which divide the interior of the isolation chamber into multiple independent isolation rooms.

[0007] Preferably, the suction pipe includes an upper suction pipe and a lower suction pipe, the inlet of the lower suction pipe extends to the collection port, and the upper suction pipe is located above the lower suction pipe and at a height of 2 / 3 from the bottom of the chamber.

[0008] Preferably, one end of the grouting pipe extending into the chamber is a bent pipe and aligned with the inner wall of the chamber, and the inner wall of the chamber is provided with an anti-impact plate corresponding to the grouting pipe.

[0009] Preferably, after the bottom inclined plate is removed, the cabin forms a moon pool.

[0010] (III) Beneficial Effects The beneficial effects of this utility model are as follows: by adopting the above technical solution, the suction pipe transports the mud into the chamber, so that the chamber can be used as a mud chamber. When it is necessary to convert it into a moon pool, the mud in the chamber is emptied through the suction pipe. Then, the bottom inclined plate, bottom outer plate and upper main deck of the chamber are cut off by a flame cutter or other cutting tools. Then, the parts of the grouting pipe and suction pipe extending into the chamber are cut off respectively. The openings of the grouting pipe and suction pipe are sealed by a welding torch, so that the chamber is completely converted into a moon pool. Attached Figure Description

[0011] Figure 1 A schematic diagram of a mud chamber that can be converted into a moon pool; Figure 2 A top view of a mud chamber that can be converted into a moon pool; Figure 3 This is a structural diagram of an isolated empty compartment.

[0012] [Explanation of Labels in the Attached Image] 1. Cabin; 2. Place the straw on top; 3. Lower straw; 4. Bottom sloping plate; 5. Impact protection plate; 6. Grouting pipe; 7. Isolation chamber; 71. Isolation panel; 8. Main deck; 9. Bottom outer panel. Detailed Implementation

[0013] To better explain and facilitate understanding of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0014] Please refer to Figures 1 to 3 This utility model provides a mud chamber that can be converted into a moon pool, including a chamber body 1, a grouting pipe 6, a grout suction pipe, and a bottom inclined plate 4; The compartment 1 is located below the main deck 8 of the ship. Bottom inclined plates 4 are provided on all four sides of the bottom of the compartment 1. The bottom inclined plates 4 form a material collection port with a large upper and small lower quadrangular truncated structure at the bottom of the compartment 1. A grouting pipe 6 is connected to one side wall of the chamber 1, and a grout suction pipe is connected to the other side wall of the chamber 1. In use, the suction pipe delivers mud into the chamber 1, allowing the chamber 1 to be used as a mud tank. When it needs to be converted into a moon pool, the mud in the chamber 1 is emptied through the suction pipe. Then, the bottom inclined plate 4, the bottom outer plate 9, and the upper main deck 8 at the bottom of the chamber 1 are cut off using a flame cutter or other cutting tools. The grouting pipe 6 and the part of the suction pipe extending into the chamber 1 are then cut off. The openings of the grouting pipe 6 and the suction pipe are sealed with a welding torch, so that the chamber 1 is completely converted into a moon pool.

[0015] In this embodiment, the hull has isolation chambers 7 around the perimeter and bottom of the hull 1. The isolation chambers 7 are pre-designed and kept empty isolation structures. When the wall of the hull 1 is damaged, seawater will first rush into the isolation chambers 7. The isolation chambers 7 are equipped with multiple isolation plates 71, which isolate the interior of the isolation chambers 7 into multiple independent isolation rooms. This not only improves the overall strength of the hull, but also buys valuable emergency response time for the crew (such as drainage, leak plugging, or balancing measures), preventing the disaster from spreading further and greatly improving the ship's anti-sinking and hull-damage stability.

[0016] In this embodiment, the suction pipe includes an upper suction pipe 2 and a lower suction pipe 3. The inlet of the lower suction pipe 3 extends to the collection port. The upper suction pipe 2 is located above the lower suction pipe 3 and is located inside the chamber 1 at a height of 2 / 3 from the bottom of the chamber 1. The upper suction pipe 2 is used to extract a uniform mud mixture when the liquid level is sufficient, without being subjected to excessive mud pressure. The lower suction pipe 3 is designed to extract the thickest mud deposited at the bottom of the tank and the sediment that cannot be completely stirred up by the agitator after the high suction port fails, thus achieving maximum emptying of the tank.

[0017] In this embodiment, the end of the grouting pipe 6 extending into the cabin 1 is a bent pipe and is aligned with the inner wall of the cabin 1. The inner wall of the cabin 1 is provided with an anti-impact plate 5 corresponding to the grouting pipe 6. The anti-impact plate 5 is used to prevent the cabin wall from being damaged by mud erosion over a long period of time, thereby compromising the strength of the hull.

[0018] In this embodiment, after removing the bottom inclined plate 4, the cabin 1 forms a moon pool.

[0019] The working principle of this utility model is as follows: The suction pipe delivers mud into chamber 1, allowing chamber 1 to be used as a mud tank. When it needs to be converted into a moon pool, the mud in chamber 1 is emptied through the suction pipe. Then, the bottom inclined plate 4, bottom outer plate 9, and upper main deck 8 of chamber 1 are removed using a flame cutter or other cutting tools. The grouting pipe 6 and the portion of the suction pipe extending into chamber 1 are then cut off. The openings of the grouting pipe 6 and the suction pipe are sealed with a welding torch, so that chamber 1 is completely converted into a moon pool.

[0020] The circuits, electronic components, and modules involved are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.

[0021] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

[0022] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A mud chamber that can be converted into a lunar pool, characterized in that, This includes the cabin, grouting pipes, grout suction pipes, and bottom inclined plate; The cabin is located below the main deck of the ship. The bottom sidewalls of the cabin are provided with bottom inclined plates, which form a material collection port with a large upper and small lower quadrangular truncated pyramid structure at the bottom of the cabin. The grouting pipe is connected to one side wall of the chamber, and the suction pipe is connected to the other side wall of the chamber.

2. A mud chamber convertible into a lunar pool according to claim 1, characterized in that, The hull has isolation compartments around the perimeter and at the bottom of the hull. These isolation compartments are pre-designed and kept vacant. When the hull wall is damaged, seawater will preferentially flow into the isolation compartments.

3. A mud chamber convertible into a lunar pool according to claim 2, characterized in that, The isolation chamber is equipped with multiple isolation panels, which divide the interior of the isolation chamber into multiple independent isolation rooms.

4. A mud chamber convertible into a lunar pool according to claim 1, characterized in that, The suction pipe includes an upper suction pipe and a lower suction pipe. The inlet of the lower suction pipe extends to the collection port. The upper suction pipe is located above the lower suction pipe and is situated within the chamber at a height of 2 / 3 from the bottom of the chamber.

5. A mud chamber convertible into a lunar pool according to claim 1, characterized in that, The grouting pipe extends into the chamber at one end, which is bent and aligned with the inner wall of the chamber. The inner wall of the chamber is provided with a shock-resistant plate corresponding to the grouting pipe.

6. A mud chamber convertible into a lunar pool according to claim 1, characterized in that, After the bottom ramp is removed, the cabin forms a lunar pool.

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