Reversed beam structure of deck in cargo hold area of ship

Abstract

The utility model relates to a reversed beam structure of a deck in a ship cargo hold area. The problems that in the prior art, a ship liquid cargo tank deck is insufficient in strength, and a liquid cargo tank is not easy to clean are solved. The deck comprises a deck body, a liquid cargo tank is arranged at the bottom of the deck body, a deck reinforcing aggregate structure is arranged on the upper end face of the deck body, a water sealing bulkhead structure is arranged in the circumferential direction of the deck body, and an outward turning assembly capable of turning the deck outwards so that the liquid cargo tank can communicate with the outside is arranged on the upper end face of the deck body. The utility model has the advantages that the structural strength and the sealing performance of the deck in the cargo tank area are improved, and the cleaning is more convenient.

Description

Technical Field

[0001] This utility model relates to the field of ship deck technology, specifically to a reverse beam structure for the deck of a ship's cargo hold area. Background Technology

[0002] Most transport ships typically have a single-bottom structure in the cargo hold area, with a raised main deck. This makes it relatively easy to arrange inspection channels in the cargo area to meet international gas carrier regulations. However, for ships with double-bottom structures, flat main decks, and C-type twin cylindrical liquid tanks, the arrangement of inspection channels at the bottom and sides of the liquefied tanks becomes more difficult. In addition, the existing liquid cargo tank deck structures are not strong enough and are difficult to clean completely, which can easily lead to liquid residue in the tanks.

[0003] To address the shortcomings of existing technologies, people have conducted long-term explorations and proposed various solutions. For example, Chinese patent literature discloses a cargo hold passage layout structure for liquefied gas transport ships [CN201620176229.5]. It includes a double-bottom structure, with a flat deck on the top of the cargo hold. Each cargo hold contains a liquid tank, which is a C-shaped double-cylindrical tank. Each cargo hold is divided into a bow and a stern. The bow: the flat deck is connected to the upper platform below via a first straight ladder, the upper platform is connected to the cargo hold inspection platform below via a second straight ladder, and the cargo hold inspection platform is connected to the bottom of the cargo hold via a third straight ladder. The stern: the upper platform is directly connected to the bottom of the cargo hold via a fourth straight ladder. The second, third, and fourth straight ladders each have a segmented structure to ensure the strength and safety of the ladders. The cargo hold inspection platform has a "U"-shaped passage with a closed bow and an open stern. The cargo hold inspection platform is located at the horizontal beam of the hull structure and is supported and fixed by the horizontal beam of the hull structure.

[0004] The above solution has solved the problem of difficult layout of inspection channels in cargo hold areas of transport ships to a certain extent. However, the solution still has many shortcomings, such as insufficient strength of the deck structure and difficulty in complete cleaning, which can easily lead to residues in the liquid cargo tank. Summary of the Invention

[0005] The purpose of this utility model is to address the above-mentioned problems by providing a reverse beam structure for the deck of a ship's cargo hold area.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a deck inverted beam structure for a ship's cargo hold area, including a deck body, a liquid cargo tank at the bottom of the deck body, a deck reinforcing skeleton structure on the upper surface of the deck body, and a water-tight bulkhead structure on the circumference of the deck body. The upper surface of the deck body is provided with an outward-folding component that can flip the deck outward so that the liquid cargo tank can communicate with the outside.

[0007] In the aforementioned ship cargo hold deck anti-beam structure, the deck reinforcing skeleton structure includes several longitudinal deck ribs arranged longitudinally on the main deck body, and the main deck body has deck longitudinal girder arranged parallel to the deck ribs on both sides.

[0008] In the aforementioned cargo hold deck inverted beam structure, the main deck is also provided with several T-beams that are perpendicular to the deck longitudinals, and the two ends of the T-beams are respectively connected to the corresponding deck longitudinals.

[0009] In the aforementioned ship cargo hold deck inverted beam structure, the main deck is provided with several deck transverse girder arranged at equal intervals, and the two ends of the deck transverse girder are respectively connected to the corresponding deck longitudinal girder.

[0010] In the aforementioned cargo hold deck anti-beam structure, the water-tight bulkhead structure includes an outer shell plate and an inner shell plate arranged around the liquid cargo tank. A longitudinal ballast tank is formed between the outer shell plate and the inner shell plate, and several supporting crossbeams are arranged from top to bottom inside the longitudinal ballast tank.

[0011] In the aforementioned cargo hold deck anti-beam structure, the two ends of the supporting beam are positioned by longitudinal connecting frames set on the outer shell plate and the inner shell plate.

[0012] In the aforementioned cargo hold deck anti-beam structure, the bottom of the liquid cargo tank is provided with an outer bottom plate and an inner bottom plate, and a transverse ballast tank is formed between the outer bottom plate and the inner bottom plate, which is connected to the longitudinal ballast tank. The transverse ballast tank is provided with several supporting longitudinal beams.

[0013] In the aforementioned cargo hold deck anti-beam structure, the two ends of the supporting longitudinal beam are positioned by transverse connecting frames set on the outer bottom plate and the inner bottom plate.

[0014] In the aforementioned cargo hold deck anti-beam structure, the inner shell plate has several grooved bulkheads for pressure resistance on its inner wall, and the two sides of the main deck extend beyond the ends of the inner shell plate toward the outer shell plate.

[0015] In the aforementioned cargo hold deck anti-beam structure, the outward tilting component includes a T-shaped support seat set at the upper end of the deck body. The T-shaped support seat is provided with an outer wall panel. One end of the outer wall panel is rotatably provided with an outward tilting plate, and there is an opening between two adjacent T-shaped support seats. The outer wall panel rotates to cover the opening and is supported and positioned by a support extension set at the end of the T-shaped support seat.

[0016] Compared with existing technologies, the advantages of this invention are: the outward-folding deck structure facilitates cleaning of the liquid cargo tanks and reduces material residue after cleaning. The deck longitudinal ribs and longitudinal girder provide overall longitudinal strength to the deck structure, while the strong transverse beams provide end support for the longitudinal ribs and lateral strength to the deck structure, effectively improving deck strength and sealing, preventing material leakage from the liquid cargo tanks, and resulting in good performance. Attached Figure Description

[0017] Figure 1 This is a plan view of the main deck of this utility model;

[0018] Figure 2 This is a cross-sectional view of the liquid cargo tank structure of this utility model;

[0019] Figure 3 This is a schematic diagram showing the location of the trough-shaped bulkhead in this utility model;

[0020] Figure 4 This is a partial structural schematic diagram of the present invention;

[0021] Figure 5 This is a partial structural diagram of the outward-folding component in this utility model;

[0022] In the diagram: 1. Main deck; 11. Cargo tank; 2. Deck reinforcing skeleton structure; 21. Deck longitudinal rib; 22. Deck longitudinal girder; 23. T-beam; 24. Deck transverse girder; 3. Watertight bulkhead structure; 31. Outer shell plate; 32. Inner shell plate; 32. Channel bulkhead; 321. Longitudinal ballast tank; 33. Support beam; 34. Longitudinal connecting frame; 35. Outer bottom plate; 36. Inner bottom plate; 37. Transverse ballast tank; 38. Support longitudinal beam; 39. Transverse connecting frame; 391. Outward folding assembly; 41. T-shaped support seat; 42. Outer bulkhead plate; 43. Opening; 44. Support extension; 45. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0024] like Figures 1-5 As shown, a deck inverted beam structure for a ship's cargo hold area includes a deck body 1, a liquid cargo tank 11 at the bottom of the deck body 1, a deck reinforcing skeleton structure 2 on the upper surface of the deck body 1, and a water-tight bulkhead structure 3 arranged around the deck body 1. An outward-folding component 4 is provided on the upper surface of the deck body 1, which can flip the deck outward so that the liquid cargo tank 11 can communicate with the outside.

[0025] Among them, the deck reinforcement skeleton structure 2 includes several longitudinal deck ribs 21 arranged on the deck body 1, and the deck body 1 has deck longitudinal girders 22 arranged parallel to the deck ribs 21 on both sides.

[0026] Obviously, the main body of the deck 1 is also provided with several T-beams 23 that are perpendicular to the longitudinal girders of the deck 21, and the two ends of the T-beams 23 are respectively connected to the corresponding longitudinal girders of the deck 22.

[0027] By arranging deck longitudinal ribs 21 on the main deck 1, T-beams 23 and deck longitudinal girder 22 form a rigid structure to enhance the structural strength of the main deck 1 and ensure a stable connection.

[0028] Furthermore, the main body of the deck 1 is provided with several deck girder 24s arranged at equal intervals, and the two ends of the deck girder 24 are respectively connected to the corresponding deck longitudinal girder 22.

[0029] The structure of deck girder 24 is designed to further enhance structural strength.

[0030] Specifically, the water-tight bulkhead structure 3 includes an outer shell plate 31 and an inner shell plate 32 arranged around the liquid cargo tank 11. A longitudinal ballast tank 33 is formed between the outer shell plate 31 and the inner shell plate 32. Several supporting beams 34 are arranged from top to bottom inside the longitudinal ballast tank 33.

[0031] Furthermore, the two ends of the supporting beam 34 are positioned by longitudinal connecting frames 35 set on the outer shell plate 31 and the inner shell plate 32.

[0032] More specifically, the bottom of the liquid cargo tank 11 is provided with an outer bottom plate 36 and an inner bottom plate 37, and a transverse ballast tank 38 is formed between the outer bottom plate 36 and the inner bottom plate 37, which is connected to the longitudinal ballast tank 33. Several supporting longitudinal beams 39 are provided in the transverse ballast tank 38.

[0033] The main function of the water-sealed bulkhead structure 3 is to provide a double-layer water seal for the liquid cargo tank 1 around its circumference and bottom, and to improve the structural strength of the water-sealed layer and enhance its internal and external pressure resistance.

[0034] In detail, the two ends of the supporting longitudinal beam 39 are positioned by transverse connecting frames 391 set on the outer bottom plate 36 and the inner bottom plate 37.

[0035] Preferably, the inner wall of the inner shell plate 32 is provided with a plurality of grooved bulkheads 321 for pressure resistance, and the two sides of the deck body 1 extend beyond the ends of the inner shell plate 32 toward the outer shell plate 31.

[0036] In addition, the outward-turning component 4 includes a T-shaped support seat 41 set on the upper end of the deck body 1. The T-shaped support seat 41 is provided with an outer wall panel 42. One end of the outer wall panel 42 is rotatably provided with an outward-turning plate 43. An opening 44 is provided between two adjacent T-shaped support seats 41. The outer wall panel 42 rotates to cover the opening 44 and is supported and positioned by a support extension 45 set at the end of the T-shaped support seat 41.

[0037] The outward-folding component 4 is arranged on the deck body 1 on the upper surface of the liquid cargo tank 11. After being folded outward, it is convenient to wash the liquid cargo tank 11 and reduce the material residue in the liquid cargo tank 11.

[0038] In summary, the principle of this embodiment is as follows: by setting interlocking longitudinal deck girders 21, longitudinal deck girder 22, T-beams 23 and transverse deck girder 24 on the main deck body 1, not only is the strength and rigidity of the deck structure improved, but the support performance is also enhanced. Secondly, water-sealed longitudinal ballast tanks 33 and transverse ballast tanks 38 are set around and at the bottom of the liquid cargo tank 11 to improve the sealing effect and pressure resistance. Furthermore, an outward-turning component 4 is set on the upper surface of the main deck body 1 to facilitate cleaning of the liquid cargo tank and reduce material residue after cleaning.

[0039] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0040] Although this document frequently uses terms such as deck body 1, cargo tank 11, deck reinforcing skeleton structure 2, deck longitudinal skeleton 21, deck longitudinal girder 22, T-beam 23, deck transverse girder 24, watertight bulkhead structure 3, outer shell plate 31, inner shell plate 32, trough-shaped bulkhead 321, longitudinal ballast tank 33, supporting beam 34, longitudinal connecting frame 35, outer bottom plate 36, inner bottom plate 37, transverse ballast tank 38, supporting longitudinal beam 39, transverse connecting frame 391, outward tilting assembly 4, T-shaped support seat 41, outer bulkhead plate 42, outward tilting plate 43, opening 44, and supporting extension 45, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A deck anti-beam structure for a ship's cargo hold area, comprising a deck body (1), wherein the bottom of the deck body (1) has a liquid cargo tank (11), characterized in that, The upper surface of the deck body (1) is provided with a deck reinforcing skeleton structure (2), and the deck body (1) is provided with a water-tight bulkhead structure (3) in the circumference. The upper surface of the deck body (1) is provided with an outward flipping assembly (4) that can flip the deck outward so that the liquid cargo tank (11) can communicate with the outside. The outward flipping assembly (4) includes a T-shaped support seat (41) provided on the upper end of the deck body (1). The T-shaped support seat (41) is provided with an outer wall plate (42). One end of the outer wall plate (42) is rotatably provided with an outward flipping plate (43), and an opening (44) is provided between two adjacent T-shaped support seats (41). The outer wall plate (42) rotates to cover the opening (44) and is supported and positioned by a support extension (45) provided at the end of the T-shaped support seat (41).

2. The anti-reverse beam structure of the ship's cargo hold area according to claim 1, characterized in that, The deck reinforcement structure (2) includes several longitudinal deck ribs (21) arranged longitudinally on the deck body (1), and the deck body (1) has deck girders (22) arranged parallel to the deck ribs (21) on both sides.

3. The anti-reverse beam structure for a ship's cargo hold area according to claim 2, characterized in that, The main body of the deck (1) is also provided with several T-beams (23) that are perpendicular to the longitudinal girder (21) of the deck, and the two ends of the T-beams (23) are respectively connected to the corresponding longitudinal girder (22).

4. The anti-reverse beam structure of the ship's cargo hold area according to claim 2, characterized in that, The main body of the deck (1) is provided with several deck girder (24) arranged at equal intervals, and the two ends of the deck girder (24) are respectively connected to the corresponding deck longitudinal girder (22).

5. The anti-reverse beam structure of the ship's cargo hold area according to claim 1, characterized in that, The water-tight bulkhead structure (3) includes an outer shell plate (31) and an inner shell plate (32) arranged around the liquid cargo tank (11). A longitudinal ballast tank (33) is formed between the outer shell plate (31) and the inner shell plate (32). Several supporting beams (34) are arranged from top to bottom inside the longitudinal ballast tank (33).

6. The anti-reverse beam structure of the ship's cargo hold area according to claim 5, characterized in that, The two ends of the supporting beam (34) are positioned by longitudinal connecting frames (35) set on the outer shell plate (31) and the inner shell plate (32).

7. The anti-reverse beam structure of the ship's cargo hold area according to claim 5, characterized in that, The liquid cargo tank (11) is provided with an outer bottom plate (36) and an inner bottom plate (37) at the bottom. The outer bottom plate (36) and the inner bottom plate (37) form a transverse ballast tank (38) that is connected to the longitudinal ballast tank (33). The transverse ballast tank (38) is provided with several supporting longitudinal beams (39).

8. The anti-reverse beam structure of the ship's cargo hold area according to claim 7, characterized in that, The two ends of the supporting longitudinal beam (39) are positioned by transverse connecting skeletons (391) set on the outer bottom plate (36) and the inner bottom plate (37).

9. A ship cargo hold deck anti-reverse beam structure according to claim 5, characterized in that, The inner shell plate (32) has several grooved bulkheads (321) for pressure resistance on its inner wall, and the deck body (1) extends beyond the ends of the inner shell plate (32) toward the outer shell plate (31) on both sides.

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