Underwater operation equipment opening reserved structure form

Abstract

The utility model discloses an underwater operation equipment opening reserved structural form which comprises a trunk arranged between a ship bottom plate and a deck, and a reserved opening reinforcing piece is fixedly arranged at the joint of the wall of the trunk and the ship bottom plate. The reserved opening reinforcing pieces are distributed in the circumferential direction of a lower end well opening of the trunk. A detachable plugging component is arranged in an area defined by the reserved opening reinforcing piece; the plugging component is sealed at the lower end wellhead of the trunk; the plugging component comprises a sealing plate; the sealing plate is connected to the reserved opening reinforcing piece. According to the utility model, the sailing resistance can be reduced, the sailing speed of the engineering ship with the opening design can be increased, the sailing cost of the ship is reduced, the usable cabin area is increased, the working efficiency of the ship is improved, and the construction and use cost of the ship is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of ships, and particularly relates to a reserved opening structure form for underwater operation equipment. Background Art

[0002] Some types of ships are equipped with underwater operation equipment. When performing underwater operations, relevant equipment needs to be put into the water for operation and recovery. Such special operation requirements necessitate the ship to be provided with large openings on the deck and the bottom of the ship to facilitate the release and recovery of the equipment. The opening for underwater operation equipment is an opening well structure penetrating from the bottom of the ship to the deck, usually square and arranged in the middle of the ship. When the ship is sailing, the opening area is connected with the surrounding sea water, affecting the overall flow field of the ship and increasing the ship's sailing resistance. Such a large opening structure has an adverse impact on the ship's stability, hull strength, and ship speed. After an opening is provided at the bottom of the ship, the inside of the hull is connected with the sea water outside the ship, and this area cannot be used as a cabin, reducing the available cabins on the ship.

[0003] To solve this problem, a bottom cover that can completely seal the opening is usually added at the opening at the bottom of the ship. The bottom cover is opened when the opening is needed and closed after use. However, such a closed bottom cover is costly, has poor reliability, and is relatively complex in later use and maintenance. The complex marine environment is likely to corrode the relevant sealing fittings, which is not conducive to ship weight control and significantly increases the construction cost and use cost of the ship. For ships with very low underwater operation frequencies, equipping with a bottom cover will significantly increase the ship's use cost and operation cost. Content of the Utility Model

[0004] The technical problem to be solved by the utility model is to overcome the above-mentioned defects existing in the prior art and provide a reserved opening structure form for underwater operation equipment.

[0005] The utility model solves the above technical problem through the following technical solutions:

[0006] A reserved opening structure form for underwater operation equipment, which includes a well arranged between the ship bottom plate and the deck. It is characterized in that a reserved opening reinforcement is fixedly arranged at the connection between the well wall of the well and the ship bottom plate; the reserved opening reinforcement is circumferentially distributed along the lower wellhead of the well; a detachable plugging member is arranged in the area surrounded by the reserved opening reinforcement; the plugging member seals the lower wellhead of the well; the plugging member includes a sealing plate; the sealing plate is connected to the reserved opening reinforcement.

[0007] Furthermore, the plugging member further includes a sealing plate reinforcement fixedly arranged on the upper surface of the sealing plate.

[0008] Furthermore, the sealing plate reinforcement is located inside the well.

[0009] Furthermore, the reserved opening reinforcement protrudes from the lower surface of the ship bottom plate.

[0010] Further, the sealing plate is connected to the ship bottom plate.

[0011] Further, the sealing plate and the ship bottom plate are integrally formed.

[0012] Further, the reserved opening reinforcing member is a round steel.

[0013] Further, the reserved opening reinforcing member is a thickened plate.

[0014] Further, a watertight cover capable of sealing the upper end well opening of the well shaft is provided at the connection between the well wall of the well shaft and the deck.

[0015] Further, a well shaft reinforcing member is fixedly provided on the outer side of the well wall of the well shaft, and the well wall of the well shaft and the well shaft reinforcing member form a well shaft structural member.

[0016] The beneficial effects of the present utility model are as follows: The present utility model ensures the tightness inside the reserved well shaft for underwater operations, can reduce the navigation resistance, can increase the ship speed of the engineering ship with an opening design, reduce the ship navigation cost. At the same time, it increases the available cabin area, improves the ship working efficiency, and reduces the construction and use costs of the ship. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of a preferred embodiment of the present utility model.

[0018] Figure 2 It is Figure 1 View A in

[0019] Figure 3 It is a schematic structural diagram of the preferred embodiment of the present utility model after removing the blocking member.

[0020] Figure 4 It is Figure 3 View B in DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The following is a preferred embodiment and is described in more clearly and completely in conjunction with the drawings to illustrate the present utility model.

[0022] As Figure 1 and Figure 2 shown, a reserved opening structure form for an underwater operation device includes a well shaft 30 provided between a ship bottom plate 10 and a deck 20.

[0023] A reserved opening reinforcing member 40 is fixedly provided at the connection between the well wall 31 of the well shaft 30 and the ship bottom plate 10. The reserved opening reinforcing member 40 protrudes from the lower surface of the ship bottom plate 10.

[0024] The reserved opening reinforcing members 40 are circumferentially distributed along the lower end well opening of the well shaft 30.

[0025] The reserved opening reinforcement 40 is a round steel bar.

[0026] In other embodiments, the reserved opening reinforcement is a thickened plate.

[0027] A detachable plugging member 50 is provided within the area enclosed by the reserved opening reinforcement 40; the plugging member 50 seals the lower wellhead of the cofferdam 30.

[0028] The plugging member 50 includes a sealing plate 51; the sealing plate 51 is connected to the reserved opening reinforcement 40.

[0029] The plugging member 50 further includes a sealing plate reinforcement 52 fixedly provided on the upper surface of the sealing plate. The sealing plate reinforcement 52 is located within the cofferdam.

[0030] There can be different connection methods between the sealing plate and the ship bottom plate.

[0031] The sealing plate 51 is integrally formed with the ship bottom plate 10; alternatively, the sealing plate 51 is connected to the ship bottom plate 10, and the sealing plate and the ship bottom plate are connected by welding.

[0032] A watertight cover 60 capable of sealing the upper wellhead of the cofferdam is provided at the connection between the well wall 31 of the cofferdam 30 and the deck 20.

[0033] A cofferdam reinforcement 32 is fixedly provided on the outer side of the well wall 31 of the cofferdam 30, and the well wall 31 of the cofferdam and the cofferdam reinforcement 32 form a cofferdam structural member.

[0034] Based on the structure of this technical solution, during the design and construction of the ship, the self - structure of the cofferdam with a reserved conventional underwater operation opening is retained, and the plugging member is reserved at the ship bottom. Before cutting off the plugging member, there is no large opening on the ship's outer plate, which is beneficial to the structural strength here and is beneficial to improving the ship's speed. The cofferdam for reserved underwater operation does not contact the seawater outside the ship, ensuring the tightness inside the cofferdam for reserved underwater operation. The cofferdam for reserved underwater operation can be used as a cabin, increasing the usable cabin area and the ship's deadweight.

[0035] As Figure 3 and Figure 4 shown, when the ship needs to open the opening and the cofferdam for underwater operation, cut along the inner side of the reserved opening reinforcement 40, and the plugging member 50 is separated from the cofferdam 30. The cofferdam as the reserved moonpool underwater operation opening communicates with the seawater outside the ship. Since the cofferdam structural member of the cofferdam itself has been built, the reserved underwater operation opening is transformed into a conventional opening for the ship to carry out normal underwater operations, fulfilling the ship's requirement for the bottom opening.

[0036] For the cut - off part, that is, the plugging member, since it was in frequent contact with seawater before cutting, it can be maintained and serviced separately after cutting to extend its service life and ensure its tightness.

[0037] In this technical solution, round steel or thickened plates are used for the repeatedly cut and welded positions to ensure that repeated cutting and welding operations can be carried out.

[0038] After the ship finishes the operations related to the moonpool, the plugging member can be re-welded back to its original position, and the plugging member closes the lower inlet of the well again.

[0039] For ships equipped with a reserved moonpool structure, only the above process needs to be repeated. They can operate normally when an opening is needed; the opening can be closed before or after the operation starts, during the voyage, etc., when no opening is required.

[0040] The manufacturing cost of the present utility model is much lower than that of the closed moonpool cover, and the complexity of the structure of the present utility model is also much lower than that of the closed watertight cover.

[0041] The present utility model can meet the needs of ships with a relatively low usage frequency of partial openings for underwater operations, reduce the influence of the structural opening on the hydrodynamic performance of the ship, increase the available cabins, and has a lower cost and higher reliability compared with the closed watertight cover, and the overall structural strength of the ship is safer.

[0042] The present utility model ensures the tightness inside the reserved well for underwater operations, can reduce the navigation resistance, can increase the speed of the engineering ship with an opening design, reduce the ship's navigation cost. At the same time, it increases the available cabin area, improves the ship's working efficiency, and reduces the construction and use costs of the ship.

[0043] Although the specific embodiments of the present utility model have been described above, those skilled in the art should understand that this is only an example. The protection scope of the present utility model is defined by the appended claims. Without departing from the principles and essence of the present utility model, those skilled in the art can make various changes or modifications to these embodiments, but these changes and modifications all fall within the protection scope of the present utility model.

Claims

1. An opening reservation structure form of an underwater operation device, which includes a cofferdam arranged between the ship bottom plate and the deck, and is characterized in that, A reserved opening reinforcement member is fixedly installed at the connection between the well wall of the cofferdam and the bottom plate of the ship; the reserved opening reinforcement members are circumferentially distributed along the lower wellhead of the cofferdam; a detachable plugging member is arranged within the area enclosed by the reserved opening reinforcement members; the plugging member seals the lower wellhead of the cofferdam; the plugging member includes a sealing plate; the sealing plate is connected to the reserved opening reinforcement member.

2. The reserved opening structure form of the underwater operation device according to claim 1, wherein The plugging member further includes a sealing plate reinforcement member fixedly arranged on the upper surface of the sealing plate.

3. The opening reservation structural form of the underwater operation device according to claim 2, wherein, The sealing plate reinforcement member is located within the cofferdam.

4. The opening reservation structure of the underwater operation device according to claim 1, characterized in that, The reserved opening reinforcement member protrudes from the lower surface of the bottom plate of the ship.

5. The opening reservation structure form of the underwater operation device according to claim 1, characterized in that, The sealing plate is connected to the bottom plate of the ship.

6. The reserved opening structure form of the underwater operation device as described in claim 1, characterized in that, The sealing plate and the bottom plate of the ship are integrally formed.

7. The reserved opening structure form of the underwater operation device according to claim 1, characterized in that, The reserved opening reinforcement member is a round steel.

8. The reserved opening structure of the underwater operation equipment as described in claim 1 is characterized in that, The reserved opening reinforcement member is a thickened plate.

9. The opening reservation structure form of the underwater operation equipment according to claim 1, characterized in that, A watertight cover capable of sealing the upper wellhead of the cofferdam is arranged at the connection between the well wall of the cofferdam and the deck.

10. The reserved opening structure form of the underwater operation equipment according to claim 1, characterized in that, Well wall reinforcement members are fixedly installed on the outer side of the well wall of the cofferdam, and the well wall of the cofferdam and the well wall reinforcement members form a cofferdam structural member.

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