Main deck unit assembly frame of dual-fuel liquefied gas transport ship

Abstract

The utility model discloses a dual-fuel liquefied gas transport ship main deck unit assembly frame which comprises a pipe frame unit used for supporting pipelines, and the pipe frame unit comprises at least two stand column sets arranged oppositely and at least two layers of pipeline supporting beams fixedly connected with the stand column sets. A connecting base is fixed to the side, opposite to the side where the pipeline supporting beam is fixed, of each stand column set, and each stand column set comprises a plurality of stand columns. The bases are arranged on the deck, and the number of the bases corresponds to that of the connecting seats; the positioning rod is detachably connected with the base; the positioning plate is detachably connected with the connecting seat, and a positioning hole allowing the positioning rod to be inserted is formed in the positioning plate. Different types of pipelines are supported through the multiple layers of pipeline supporting beams on the stand columns, the bases corresponding to the pipe frame units are fixed to the deck in advance, a mounting foundation is provided for the positioning rods, the pipe frame units can be matched with the positioning rods through the positioning holes of the positioning plates, rapid positioning is achieved, then the construction period is shortened, and efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of shipbuilding technology, and in particular to a main deck unit frame for a dual-fuel liquefied gas carrier. Background Technology

[0002] In the construction of dual-fuel liquefied gas carriers, the deck piping system, as one of the core functional modules, directly impacts the overall performance and delivery cycle of the vessel due to its construction quality and efficiency. Deck piping typically needs to transport liquefied natural gas (LNG) or fuel gases, requiring strict requirements for sealing, pressure resistance, and spatial layout. Traditional construction methods involve sequentially hoisting and securing multiple pipe rack units to the deck, then connecting the pipes section by section to form a complete piping system.

[0003] Given the long length of deck piping and the need for alignment of connecting pipes, the pipe interfaces of adjacent pipe rack units are usually pre-aligned when installing pipes onto the pipe rack unit from the ground. However, when hoisting the pipe rack unit from the ground to the ship's deck, the pipe rack unit needs to be repositioned. Since there are no positioning foundations on site, positioning is difficult, requiring repeated hoisting to adjust the pipe rack position, which is time-consuming, prolongs the construction cycle, and reduces efficiency. Utility Model Content

[0004] This utility model provides a main deck unit frame for a dual-fuel liquefied gas carrier to overcome the above-mentioned technical problems.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] A main deck unit frame for a dual-fuel liquefied gas carrier includes:

[0007] A pipe rack unit for supporting pipelines, the pipe rack unit includes at least two sets of opposing column groups and at least two layers of pipeline support beams fixedly connected to the column groups. A connecting seat is fixed on the side of the column group opposite to the fixed pipeline support beam. Each column group includes multiple columns.

[0008] A base is installed on the deck, the number of which corresponds to the number of connecting seats;

[0009] A positioning rod, which is detachably connected to the base;

[0010] A positioning plate is detachably connected to a connecting seat, and the positioning plate is provided with a positioning hole that allows a positioning rod to be inserted.

[0011] Furthermore, it also includes diagonal bracing rods, the two ends of which are detachably connected to the base and the connecting seat, respectively.

[0012] Furthermore, the cross-section of the positioning rod is selected from circular, square, or H-shaped.

[0013] Furthermore, it also includes an adjustment sleeve that can be fitted onto the column, the column being connected to the deck via the adjustment sleeve.

[0014] Furthermore, the side wall of the adjusting sleeve is provided with welding openings.

[0015] Furthermore, the tube rack unit is equipped with a floodlight mounting bracket.

[0016] Furthermore, a fire extinguisher box is installed on the uprights of the pipe rack unit.

[0017] Furthermore, the top of the pipe rack unit is provided with a walkway and a cable tray.

[0018] Furthermore, a fire extinguisher box is provided on the walkway.

[0019] Furthermore, it also includes a maintenance platform located on one side of the walkway, the maintenance platform being equipped with a maintenance hoist.

[0020] Beneficial effects: The main deck unit frame of a dual-fuel liquefied gas carrier provided by this utility model supports different types of pipelines through multi-layer pipeline support beams on the columns. By pre-fixing the bases of each corresponding pipe rack unit on the deck, an installation foundation is provided for the positioning rod, so that the pipe rack unit can be quickly positioned by cooperating with the positioning rod through the positioning holes of the positioning plate, thereby shortening the construction cycle and improving efficiency. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of a main deck unit frame of a dual-fuel liquefied gas carrier installed on the deck, as disclosed in this utility model.

[0023] Figure 2 This is a top view schematic diagram of the pipe rack unit and positioning rod of the main deck unit assembly of a dual-fuel liquefied gas carrier disclosed in this utility model;

[0024] Figure 3 This is a front view schematic diagram of the tube frame unit and positioning rod of the main deck unit frame of a dual-fuel liquefied gas carrier disclosed in this utility model.

[0025] Figure 4This is a top view schematic diagram of the columns and positioning rods of the main deck unit frame of a dual-fuel liquefied gas carrier disclosed in this utility model;

[0026] Figure 5 This is a top view schematic diagram of the positioning rod of the main deck unit frame of a dual-fuel liquefied gas carrier disclosed in this utility model;

[0027] Figure 6 This is a top view schematic diagram of the positioning plate of the main deck unit frame of a dual-fuel liquefied gas carrier disclosed in this utility model.

[0028] Figure 7 This is a front view schematic diagram of the tube frame unit and diagonal bracing of the main deck unit frame of a dual-fuel liquefied gas carrier disclosed in this utility model.

[0029] Figure 8 This is a schematic diagram of the fit between the column and the adjusting sleeve of the main deck unit frame of a dual-fuel liquefied gas carrier disclosed in this utility model.

[0030] Figure 9 This is a schematic diagram showing the location of the floodlight mounting base for the main deck unit frame of a dual-fuel liquefied gas carrier disclosed in this utility model.

[0031] In the diagram: 1. Pipe rack unit; 2. Base; 3. Positioning rod; 4. Positioning plate; 41. Positioning hole; 5. Diagonal brace; 6. Adjusting sleeve; 61. Welding opening; 7. Floodlight mounting bracket; 8. Fire box; 9. Walkway fire box; 10. Walkway; 11. Column; 12. Pipeline support beam; 13. Connecting seat; 14. Maintenance platform; 15. Maintenance crane; 16. Deck; 17. Crane; 18. Cable tray. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0033] This embodiment provides a main deck unit frame for a dual-fuel liquefied gas carrier, including:

[0034] like Figure 2 As shown, pipe support unit 1 is used to support the pipeline, such as Figure 1 As shown, a pipe rack unit 1 is used to support pipelines. The pipe rack unit 1 includes at least two sets of opposing column groups and at least two layers of pipeline support beams 12 fixedly connected to the column groups, as shown. Figure 3 As shown, a connecting seat 13 is welded and fixed on the side of the column group opposite to the fixed pipeline support beam 12, and each column group includes multiple columns 11.

[0035] The number of bases 2 welded to the deck 16 corresponds to the number of connecting seats 13 (one base 2 corresponds to one connecting seat 13 or two connecting seats 13. The more connecting seats 13 there are, the more accurate the positioning is, but the greater the difficulty of hoisting).

[0036] Positioning rod 3, which is detachably connected to base 2 by bolts;

[0037] Positioning plate 4, which is detachably connected to connecting seat 13 by bolts, and positioning plate 4 is provided with positioning hole 41 that allows positioning rod 3 to be inserted.

[0038] This embodiment provides a main deck unit frame for a dual-fuel liquefied gas carrier. Different types of pipelines are supported by multi-layer pipeline support beams 12 on the columns 11. The bases 2 corresponding to each pipe rack unit 1 are fixed on the deck 16 in advance to provide an installation foundation for the positioning rods 3. This allows the pipe rack unit 1 to cooperate with the positioning rods 3 through the positioning holes 41 of the positioning plate 4, thereby achieving rapid positioning, shortening the construction cycle and improving efficiency.

[0039] Specifically, such as Figure 7 As shown, it also includes a diagonal brace 5, the two ends of which are detachably connected to the base 2 and the connecting seat 13 by bolts.

[0040] Specifically, the cross-section of the positioning rod 3 is selected from circular, square, or H-shaped. In this embodiment, for example... Figures 4 to 6 As shown, the cross-section of the positioning rod 3 is H-shaped.

[0041] Specifically, such as Figure 8 As shown, it also includes an adjustment sleeve 6 that can be fitted onto the column 11, and the column 11 is connected to the deck 16 through the adjustment sleeve 6;

[0042] Deck 16 is not a single flat surface; there are height differences in different areas. During hoisting, before the bottom of column 11 is placed on deck 16, adjust sleeve 6 is put on column 11. When leveling is required, the corresponding column 11 is lifted (by hoisting or jacking up), the position of adjust sleeve 6 on column 11 is adjusted, and the two ends of adjust sleeve 6 are welded to deck 16 and column 11 respectively.

[0043] Specifically, such as Figure 8 As shown, the side wall of the adjusting sleeve 6 is provided with a welding opening 61. The welding opening 61 increases the welding area between the adjusting sleeve 6 and the column 11, thereby improving the connection strength.

[0044] Specifically, such as Figure 1 As shown, the pipe rack unit 1 is equipped with a floodlight mounting base 7, which is used to mount floodlights for illumination, such as... Figure 9 As shown, by setting multiple floodlight mounting bases 7, the transport ship can eliminate the need for the refueling station light mast.

[0045] Specifically, such as Figure 1 As shown, a fire box 8 is provided on the column 11 of the pipe rack unit 1. In this embodiment, the fire box 8 is a fire water tank with a faucet.

[0046] Specifically, such as Figure 1 As shown, the top of the pipe rack unit 1 is provided with a walkway 10 and a cable tray 18 for easy maintenance. The cable tray 18 is used to place multi-core pipes and cables.

[0047] In this embodiment, the top of the pipe rack unit 1 is provided with a steel structure frame for supporting the walkway 10 and the cable tray 18. The steel structure frame is welded to the column 11. Four layers of pipe support beams 12 are provided below the walkway 10. The uppermost pipe support beam 12 is used to support the liquid cargo pipeline to facilitate welding and radiographic testing. The lower three layers of pipe support beams 12 are used to place the remaining pipelines (the pipelines on the lower three layers of pipe support beams 12 can be connected by flanges, pipe connectors, sleeves, etc.).

[0048] Specifically, such as Figure 1 As shown, a fire extinguishing box 9 is provided on the walkway 10, and the fire extinguishing box 9 is a dry powder fire extinguishing box.

[0049] Specifically, such as Figure 1 As shown, it also includes a maintenance platform 14 located on one side of the walkway 10. The maintenance platform 14 is equipped with a maintenance hoist 15 (the maintenance hoist can be a hand-operated hoist installed on the hanger). The maintenance platform 14 can reach the platform installed on the crane 17.

[0050] In actual use, the base 2 of each corresponding pipe rack unit 1 is first positioned on the deck 16 and then welded and fixed. The positioning rod 3 is installed on the base 2, and the positioning plate 4 is installed on the pipe rack unit 1. The pipe rack unit 1 is hoisted from the ground to the deck 16, so that the positioning plate 4 is positioned by the positioning rod 3. Before the column 11 of the pipe rack unit 1 contacts the deck 16, the adjusting sleeve 6 is put on the column 11. When leveling is required, the corresponding column 11 is lifted (the pipe support beam 12 is lifted by hoisting or jacking to make the column 11 leave the deck 16), the position of the adjusting sleeve 6 on the column 11 is adjusted, and the two ends of the adjusting sleeve 6 are welded to the deck 16 and the column 11 respectively.

[0051] After the pipe rack unit 1 is fixed, connect the pipes on the adjacent pipe rack unit 1, remove the positioning rod 3 and the positioning plate 4, and connect the two ends of the diagonal brace 5 to the base 2 and the connecting seat 13 with bolts to improve the connection strength between the pipe rack unit 1 and the deck 16.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A dual fuel liquefied gas carrier main deck unit module assembly, characterized in that, The utility model relates to a kind of pipe rack units for supporting pipeline, the pipe rack unit (1) includes at least two groups of oppositely arranged column groups and at least two layers of pipeline support beams (12) fixedly connected with the column group, the side fixed with pipeline support beam (12) on the column group is fixed with connecting seat (13), each column group includes multiple columns (11); Base (2) is arranged on deck (16), the number of base (2) corresponds with the number of connecting seat (13); Positioning rod (3), the positioning rod (3) is detachably connected with base (2); Positioning plate (4), the positioning plate (4) is detachably connected with connecting seat (13), and positioning hole (41) allowing positioning rod (3) to insert is provided on the positioning plate (4). It further includes diagonal bracing (5), and the two ends of diagonal bracing (5) are detachably connected with base (2) and connecting seat (13) respectively.

2. A dual fuel Liquefied Gas carrier main deck unit block assembly according to claim 1, characterized in that, The cross section of the positioning rod (3) is selected from a circle, a square or an H shape.

3. A main deck unit module assembly for a dual fuel liquefied gas carrier according to claim 1, wherein, It further includes adjusting sleeve (6) that can be sleeved on column (11), and the column (11) is connected with deck (16) by adjusting sleeve (6).

4. A main deck unit module assembly for a dual fuel liquefied gas carrier according to claim 1, wherein, Welding aperture (61) is provided on the sidewall of the adjusting sleeve (6).

5. A main deck unit module assembly for a dual fuel liquefied gas carrier according to claim 4, wherein, Light projector mounting seat (7) is provided on the pipe rack unit (1).

6. A main deck unit module assembly for a dual fuel liquefied gas carrier according to claim 1, wherein, Fire-fighting box (8) is provided on the column (11) of the pipe rack unit (1).

7. A main deck unit module assembly for a dual fuel liquefied gas carrier according to claim 1, wherein, Walkway (10) and cable tray (18) are provided on the top of the pipe rack unit (1).

8. A main deck unit module assembly for a dual fuel liquefied gas carrier according to claim 1, wherein, Walkway fire-fighting box (9) is provided on the walkway (10).

9. A main deck unit module assembly for a dual fuel liquefied gas carrier according to claim 8, wherein, It further includes maintenance platform (14) arranged on one side of walkway (10), and maintenance crane (15) is provided on the maintenance platform (14).

10. A main deck unit module assembly for a dual fuel liquefied gas carrier according to claim 1, wherein, ​

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