Hull manufacturing method

Abstract

The invention discloses a hull manufacturing method. The hull manufacturing method comprises the steps that S100, a cabin bottom block, a cabin upper platform block located above the cabin bottom block, a cabin stern block located behind the cabin bottom block and the cabin upper platform block, a front island block located above the cabin upper platform block and a rear island block located above the cabin upper platform block are divided from the front wall of a cabin to the stern; four annular blocks are sequentially divided in the direction from the front wall of the engine room to the bow. S200, the cabin bottom block, the cabin upper platform block, the cabin stern block, the front island block and the rear island block are assembled on the ground; hoisting to a platform line, and folding and butting to form a stern half ship; s300, all the annular blocks are assembled on the ground; s400, the module transport vehicle transports the annular block to a platform line, and a folding opening of the annular block and a target folding opening are folded and connected in a butt joint mode; wherein the target closure opening is the closure opening of the stern half ship or the closure opening of each annular block.

Description

Technical Field

[0001] The present application relates to the field of ship technology, and in particular to a method for manufacturing a hull of an oil tanker on a platform line. Background Art

[0002] With the continuous development of the shipbuilding industry, efficient construction and lean management have become key factors in enhancing the industry's competitiveness. In the field of platform-line oil tanker construction, the current mainstream construction method relies on the lifting capacity of cranes to assemble several sections, which are then lifted to the platform line for assembly and loading. This construction model, by directly utilizing crane resources, has achieved a certain degree of standardization in the construction process, meeting the basic requirements of structural assembly during shipbuilding. It has played a vital role in past shipbuilding projects and has long been a traditional construction method used by many shipyards.

[0003] However, a closer look at this construction method reveals its drawbacks. First, the large number of sections that must be pre-assembled into master blocks results in a high number of master blocks being hoisted to the platform line, severely exacerbating the shortage of crane resources on the platform line. Frequent crane operation not only reduces equipment efficiency but also increases maintenance costs and safety hazards. Second, numerous welds between master blocks are concentrated on the platform line for welding and polishing, exponentially increasing the workload during this phase, slowing the platform line's production pace and hindering overall construction progress. Furthermore, insufficient attention to the integrity of cabins and outfitting during the early assembly phase resulted in a significant backlog of installation and commissioning work on the platform line and at the dock, significantly extending the construction period and increasing the investment in manpower and material resources. Furthermore, the increased demand for master block hoisting and platform line operations has significantly impacted the allocation and use of other construction resources, such as hanging baskets used for aerial work, further hindering the smooth and coordinated operation of multiple trades. These intertwined problems not only affect the efficiency and quality of oil tanker construction, but also lead to rising construction costs, making it difficult for traditional construction methods to adapt to the shipbuilding industry's growing demand for efficient and low-cost construction. Summary of the invention

[0004] The purpose of the embodiments of the present invention is to provide a method for manufacturing a hull, which can solve the above-mentioned problems existing in the prior art.

[0005] To achieve the above objectives, this application adopts the following technical solutions: In one aspect, a method for manufacturing a hull is provided, comprising the steps of: S100. Divide the engine room bottom block, the engine room upper platform block above the engine room bottom block, the engine room stern block behind the engine room bottom block and the engine room upper platform block, the front island block and the rear island block above the engine room upper platform block from the front wall of the engine room towards the stern; and divide them into four annular blocks in sequence towards the bow along the front wall of the engine room; S200. Prefabricate the engine room bottom block, the engine room upper platform block, the engine room stern block, the front island block and the rear island block respectively on the ground; then hoist the engine room bottom block, the engine room upper platform block and the engine room stern block to the platform line respectively and carry out butt joint to form the stern half ship; S300. Prefabricate each of the annular blocks on the ground; S400. Transport the annular blocks to the platform line by a modular transporter, and carry out butt joint between the butt joint of the annular blocks and the target butt joint; wherein, the target butt joint is the butt joint of the stern half ship or the butt joint of each of the annular blocks.

[0006] Preferably, the step S200 includes sub - steps: S210. Prefabricate the engine room bottom block, the engine room upper platform block, the engine room stern block, the front island block and the rear island block respectively on the ground; S220. Hoist the engine room bottom block and the engine room upper platform block to the platform line in sequence; S230. Carry out butt joint between the engine room bottom block and the engine room upper platform block at the upper end of the engine room bottom block; S240. Hoist the engine room stern block to the platform line; S250. Carry out butt joint between the engine room stern block and the engine room bottom block and the engine room upper platform block at the front end of the engine room stern block to form the stern half ship.

[0007] Preferably, the step S300 includes sub - steps: S310. Hoist the bottom segment to the designated position on the ground and fix it with a temporary support device; S320. Hoist two bilge segments to both sides of the bottom segment, and carry out butt joint welding between the bilge segments and the bottom segment; S330. Hoist the longitudinal bulkhead segment and the transverse bulkhead segment to the enclosed area of the bilge segments and the bottom segment, weld and fix the longitudinal bulkhead segment with the bottom segment, and weld and fix the transverse bulkhead segment with the bilge segments and the bottom segment; S340. Hoist the two side sections to above the two bilge sections respectively, and perform butt joint welding on the side sections and the bilge sections. At the same time, weld and fix the side sections to the transverse bulkhead sections. S350. Hoist the deck section to above the side sections, and weld and fix the deck section to the side sections, the longitudinal bulkhead sections and the transverse bulkhead sections. S360. Install the outfitting parts inside the annular sub-assembly.

[0008] Preferably, after sub-step S350, there is also a sub-step: S370. Conduct airtightness detection on all welds between the bottom section, the bilge section, the side section, the deck section, the longitudinal bulkhead section and the transverse bulkhead section and meet the airtightness standard.

[0009] Preferably, step S400 includes sub-steps: S410. Load the annular sub-assembly onto the modular transporter. S420. The modular transporter transports the annular sub-assembly to a position opposite to the mating opening of the annular sub-assembly and the target mating opening, and position the annular sub-assembly. S430. The modular transporter unloads and places the annular sub-assembly onto the dock piers and support structures. S440. Perform butt joint welding on the mating opening of the annular sub-assembly and the target mating opening.

[0010] Preferably, sub-step S410 includes sub-sub-steps: S411. Trim the surplus at the mating opening of the annular sub-assembly. S412. Use the jacking equipment to jack up the annular sub-assembly to a preset height. S413. The modular transporter is slowly jacked up synchronously with the jacking equipment until it abuts against the annular sub-assembly, and then the jacking equipment retracts to complete the transfer of the annular sub-assembly onto the modular transporter.

[0011] Preferably, sub-step S420 includes sub-sub-steps: S421. The modular transporter transports the annular sub-assembly in the direction close to the target mating opening to a first calibration position, and perform the first position calibration on the annular sub-assembly. Among them, the first calibration position is a position where the mating opening of the annular sub-assembly is 8 m to 12 m away from the target mating opening. S422. The modular transporter continues to transport the annular sub-assembly in the direction close to the target mating opening, and continuously adjust the center line of the annular sub-assembly during the movement.

[0012] Preferably, after the sub-step S422, the following sub-step is further included: S423. The modular transporter transports the annular sub-assembly towards the direction close to the target mating opening and moves to the second calibration position, and performs a second position calibration on the annular sub-assembly; wherein, the second calibration position is a position where the mating opening of the annular sub-assembly is 40 mm to 60 mm away from the target mating opening.

[0013] Preferably, the sub-step S430 includes the following sub-steps: S431. Horizontally adjust the dock pier and the support structure, and adjust the heights of the dock pier and the support structure to a preset height; S432. The modular transporter descends to a preset height so that the annular sub-assembly is placed on the dock pier and the support structure; S433. Weld a temporary support structure on the annular sub-assembly for restraining the annular sub-assembly; S434. The modular transporter continues to descend until it is separated from the annular sub-assembly to unload the annular sub-assembly onto the dock pier and the support structure.

[0014] Preferably, after the step S400, the following step is further included: S500. Hoist the aft island sub-assembly and the forward island sub-assembly onto the platform line in sequence, and weld the aft island sub-assembly and the forward island sub-assembly to the stern half ship.

[0015] The beneficial effects of the present application are as follows: In the present application, after the engine room sub-assembly and the annular sub-assembly are pre-assembled on the ground in advance and then enter the platform line for mating, a large amount of pre-installation work is completed before the hull structure enters the platform line, effectively reducing the workload of the platform line operation, significantly shortening the construction period, synchronously driving the improvement of the efficiency in the dock commissioning stage, finally shortening the full-process construction period, laying a solid foundation for the rapid delivery of the ship, and achieving a double breakthrough in construction efficiency and quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present application will be further described in detail below with reference to the drawings and embodiments.

[0017] Figure 1 The flowchart showing the hull manufacturing method provided by an embodiment of the present application; Figure 2 The schematic diagram showing the division of the hull sub-assemblies in an embodiment of the present application; Figure 3 The schematic diagram showing the mating of the sub-assemblies in the engine room area in an embodiment of the present application; Figure 4 The schematic diagram showing the pre-assembly of the annular sub-assembly in an embodiment of the present application; Figure 5 and Figure 6 shows a schematic diagram of the module transporter transferring the annular sub - assembly in an embodiment of the present application.

[0018] In the figure: 100, front cabin wall; 200, bottom sub - assembly of the cabin; 300, upper platform sub - assembly of the cabin; 400, aft part sub - assembly of the cabin; 500, front island sub - assembly; 600, rear island sub - assembly; 700, annular sub - assembly; 710, bottom segment; 720, bilge segment; 730, longitudinal bulkhead segment; 740, transverse bulkhead segment; 750, side shell segment; 760, deck segment; 800, dock block; 900, support structure; 1000, module transporter. Detailed implementation manners

[0019] To make the technical problems solved by the present application, the technical solutions adopted and the achieved technical effects clearer, the technical solutions of the embodiments of the present application will be further described in detail below. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present application.

[0020] In the description of the present application, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0021] In the present application, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "above and to the right", and "above and on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature is at a higher horizontal height than the second feature. The first feature being "below", "below and to the left", and "below and on" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature is at a lower horizontal height than the second feature.

[0022] Figure 1 is a flowchart of the hull manufacturing method provided by an embodiment of the present application, as Figure 1As shown in the figure, this embodiment provides a hull manufacturing method, including the steps of: S100. Divide the total section of the engine room bottom, the upper platform total section of the engine room located above the total section of the engine room bottom, the stern section of the engine room located behind the total section of the engine room bottom and the upper platform total section of the engine room, the front island total section and the rear island total section located above the upper platform total section of the engine room from the front wall of the engine room towards the stern; and divide them into four annular total sections in sequence from the front wall of the engine room towards the bow; S200. Assemble the total section of the engine room bottom, the upper platform total section of the engine room, the stern section of the engine room, the front island total section and the rear island total section respectively on the ground; then hoist the total section of the engine room bottom, the upper platform total section of the engine room and the stern section of the engine room to the platform line respectively and carry out closure docking to form the stern half of the ship; S300. Assemble each of the annular total sections on the ground; S400. The modular transporter transports the annular total section to the platform line and carries out closure docking between the closure port of the annular total section and the target closure port; wherein, the target closure port is the closure port of the stern half of the ship or the closure port of each of the annular total sections. S500. Hoist the rear island total section and the front island total section to the platform line in sequence and weld the rear island total section and the front island total section to the stern half of the ship.

[0023] Regarding step S100, Figure 2 shows a schematic diagram of the division of the hull total section in an embodiment of the present application. Refer to Figure 2 As shown, the arrow direction in the figure is the direction from the stern to the bow. Figure 2 Taking the front wall 100 of the engine room as the boundary, the front wall 100 of the engine room divides the total section 200 of the engine room bottom, the upper platform total section 300 of the engine room located above the total section 200 of the engine room bottom, the stern section 400 of the engine room located behind the total section 200 of the engine room bottom and the upper platform total section 300 of the engine room, the front island total section 500 and the rear island total section 600 located on the deck towards the stern. Referring to Figure 2 As shown, the front wall 100 of the engine room divides the first annular total section, the second annular total section, the third annular total section and the fourth annular total section in sequence towards the bow, a total of four annular total sections.

[0024] Regarding step S200, the total section 200 of the engine room bottom, the upper platform total section 300 of the engine room, the stern section 400 of the engine room, the front island total section 500 and the rear island total section 600 are respectively assembled on the ground. After the above-mentioned total sections are assembled, they are hoisted to the platform line for closure docking. It should be noted here that in step S200, the front island total section 500 and the rear island total section 600 are not involved first. After the four annular total sections 700 are docked and closed, the front island total section 500 and the rear island total section 600 are hoisted to the platform line for closure docking. For details, refer to step S500. Figure 3 shows a schematic diagram of the closure of the total section in the engine room area in an embodiment of the present application. Refer to Figure 3As shown, the after half of the ship is formed after the mating of the engine room bottom sub - assembly 200, the engine room upper platform sub - assembly 300, and the engine room aft sub - assembly 400.

[0025] Furthermore, step S200 includes sub - steps: S210, perform overall assembly of the engine room bottom sub - assembly 200, the engine room upper platform sub - assembly 300, the engine room aft sub - assembly 400, the front island sub - assembly 500, and the rear island sub - assembly 600 on the ground respectively.

[0026] S220, hoist the engine room bottom sub - assembly 200 and the engine room upper platform sub - assembly 300 to the platform line in sequence.

[0027] S230, perform mating and docking of the engine room bottom sub - assembly 200 and the engine room upper platform sub - assembly 300 located at the upper end of the engine room bottom sub - assembly 200, which can refer to the direction indicated by the arrow in Figure 3 as shown.

[0028] S240, hoist the engine room aft sub - assembly 400 to the platform line.

[0029] S250, perform mating and docking of the engine room aft sub - assembly 400 with the engine room bottom sub - assembly 200 and the engine room upper platform sub - assembly 300 located at the front end of the engine room aft sub - assembly 400 to form the after half of the ship, which can refer to the direction indicated by the arrow in Figure 3 as shown.

[0030] Figure 4 shows the overall assembly schematic diagram of the annular sub - assembly in an embodiment of the present application. As shown in Figure 4 the annular sub - assembly 700 structurally includes: bottom section 710, bilge section 720, longitudinal bulkhead section 730, transverse bulkhead section 740, side shell section 750, and deck section 760. Regarding the process of overall assembly of the annular sub - assembly 700 on the ground, specifically referring to the steps, S300 includes sub - steps: S310, hoist the bottom section 710 to the designated position on the ground and fix it using a temporary support device, with the bottom section 710 as the positioning section. The temporary support device involved here is removed in a timely manner after the overall assembly of the annular sub - assembly 700 is completed.

[0031] S320, hoist two bilge sections 720 to both sides of the bottom section 710, and perform docking, mating, and welding of the bilge section 720 and the bottom section 710.

[0032] S330. Lift and install the longitudinal bulkhead section 730 and the transverse bulkhead section 740 into the enclosed area of the bilge section 720 and the bottom section 710. Weld and fix the longitudinal bulkhead section 730 to the bottom section 710, and weld and fix the transverse bulkhead section 740 to the bilge section 720 and the bottom section 710. Since the hull part of the ring block 700 is not yet enclosed, it is more convenient to install the longitudinal bulkhead section 730 and the transverse bulkhead section 740, which are the internal structures of the cabin, at this time.

[0033] S340. Lift and install the two side shell sections 750 above the two bilge sections 720 respectively, and carry out butt joint welding between the side shell section 750 and the bilge section 720. At this time, the ring-shaped part of the ring block 700 has been enclosed and formed. After the two side shell sections 750 are butted and joined together, attention should also be paid to welding and fixing the positions where the side shell section 750 needs to be connected to the transverse bulkhead section 740.

[0034] S350. Lift and install the deck section 760 above the side shell section 750, and weld and fix the deck section 760 to the side shell section 750 to complete the overall enclosure of the ring block 700. When installing the deck section 760, attention should also be paid to welding and fixing the positions where the deck section 760 needs to be connected to the longitudinal bulkhead section 730 and the transverse bulkhead section 740.

[0035] S370. Conduct airtightness detection on all welds between the bottom section 710, the bilge section 720, the side shell section 750, the deck section 760, the longitudinal bulkhead section 730 and the transverse bulkhead section 740 to meet the airtightness standard. If the airtightness requirement is not met, adjustments should be made in a timely manner until the airtightness requirement is met. In addition, the cabins also need to be timely detected for airtightness and meet the airtightness standard. If the airtightness requirement is not met, adjustments should also be made in a timely manner until the airtightness requirement is met.

[0036] S360. Install the outfitting parts inside the ring block 700. In addition, it should be noted that the external plate paint of the ring block 700 also needs to be painted as required.

[0037] So far, the overall assembly of one ring block 700 on the ground has been completed. The remaining three ring blocks 700 can be repeated with reference to the above sub-steps and will not be elaborated here.

[0038] Among them, step S400 includes sub-steps: S410. The modular transporter 1000 loads the ring block 700.

[0039] S420. The modular transporter 1000 transports the annular section 700 to a position where the mating opening of the annular section 700 is opposite to the target mating opening, and positions the annular section 700.

[0040] S430. The modular transporter 1000 unloads and places the annular section 700 onto the dock pier 800 and the support structure 900. Reference can be made here to Figure 5 and Figure 6 as shown, Figure 5 which shows the state where the modular transporter 1000 unloads and places the first annular section onto the dock pier 800 and the support structure 900. Figure 6 which shows the states where the modular transporter 1000 unloads and places the second annular section, the third annular section, and the fourth annular section onto the dock pier 800 and the support structure 900. The layout positions of the dock pier 800, the support structure 900, and the modular transporter 1000 involved in the figure are for reference only and are not limited by this, and can be adjusted according to actual process requirements.

[0041] S440. Mate and weld the mating opening of the annular section 700 with the target mating opening. It should be noted here that when the first annular section is mated and welded, its corresponding target mating opening is the mating opening of the stern half ship, and when the second annular section, the third annular section, and the fourth annular section are mated and welded, their corresponding target mating openings are the mating opening of the first annular section, the mating opening of the second annular section, and the mating opening of the third annular section respectively.

[0042] Further, sub-step S410 includes sub-sub-steps: S411. Trim the surplus at the mating opening of the annular section 700.

[0043] S412. Use the lifting equipment to lift the annular section 700 to a preset height.

[0044] S413. The modular transporter 1000 is slowly lifted synchronously with the lifting equipment until it abuts against the annular section 700, and then the lifting equipment retracts, completing the transfer of the annular section 700 onto the modular transporter 1000 to realize the movement of the annular section 700 by the modular transporter 1000.

[0045] Further, sub-step S420 includes sub-sub-steps: S421. The module transport vehicle 1000 carries the annular segment 700 to a first calibration position in a direction close to the target closing opening, and performs a first position calibration on the annular segment 700. The first calibration position is a position where the closing opening of the annular segment 700 is 8m to 12m away from the target closing opening. Preferably, the first calibration position is a position where the closing opening of the annular segment 700 is 10m away from the target closing opening. It should be noted that the first position calibration can be performed by raising or lowering the module transport vehicle 1000 and simultaneously coordinating with the total station to measure and adjust the level of the segment.

[0046] S422: The module transporter 1000 continues to carry the annular segment 700 toward the target closing opening, and continuously adjusts the centerline of the annular segment 700 during the movement. It should be noted that the total station measurement is used to coordinate the movement of the module transporter 1000 so as to adjust the centerline of the annular segment 700 during the movement.

[0047] S423, the module transport vehicle 1000 carries the annular total segment 700 to the second calibration position in the direction close to the target closing mouth, and performs a second position calibration on the annular total segment 700; wherein, the second calibration position is a position where the closing mouth of the annular total segment 700 is 40mm to 60mm away from the target closing mouth. Preferably, the second calibration position is a position where the closing mouth of the annular total segment 700 is 50mm away from the target closing mouth. It should be noted here that the module transport vehicle 1000 stops when it moves to the second calibration position, and remeasures the calibration contents involved in the second position calibration, such as the center line of the annular segment, the bow end angle square, and the deck surface level, to meet the accuracy control requirements.

[0048] Wherein, sub-step S430 includes sub-steps: S431 , horizontally adjust the dock 800 and the support structure 900 , and adjust the heights of the dock 800 and the support structure 900 to a preset height.

[0049] S432: The module transporter 1000 descends to a preset height so that the annular segment 700 is placed on the dock 800 and the support structure 900. It is important to note that the clearance between the closing opening of the annular segment 700 and the target closing opening must be checked to see if it meets the preset requirements, and whether there is any structural misalignment between the closing opening of the annular segment 700 and the target closing opening. Only after confirmation can the subsequent steps be carried out.

[0050] S433: Weld a temporary support structure 900 on the annular segment 700 to constrain the annular segment 700. The temporary support structure 900 may be a support rail.

[0051] S434. The modular transporter 1000 continues to descend until it is separated from the annular sub-assembly 700, so as to unload the annular sub-assembly 700 onto the dock piers 800 and the support structure 900. It should be noted here that the modular transporter 1000 is withdrawn only after checking that the annular sub-assembly 700 is in normal condition.

[0052] In the description of this document, it should be understood that the orientation or positional relationships such as "upper", "lower", "left", "right", etc. are only for the convenience of description and simplifying the operations, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to this application. In addition, the terms "first" and "second" are only used for differentiation in description and have no special meaning.

[0053] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example.

[0054] In addition, it should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard 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.

[0055] The technical principle of this application has been described above in combination with specific embodiments. These descriptions are only for explaining the principle of this application and cannot be construed in any way as a limitation to the protection scope of this application. Based on the explanations here, those skilled in the art can think of other specific embodiments of this application without creative efforts, and these embodiments will all fall within the protection scope of this application.

Claims

1. A method for manufacturing a hull, characterized in that, Including the steps: S100. Divide the total section of the engine room bottom (200) from the front wall of the engine room (100) towards the stern, the upper platform total section of the engine room (300) located above the total section of the engine room bottom (200), the stern total section of the engine room (400) located behind the total section of the engine room bottom (200) and the upper platform total section of the engine room (300), the front island total section (500) and the rear island total section (600) located above the upper platform total section of the engine room (300); sequentially divide into four annular total sections (700) along the front wall of the engine room (100) towards the bow direction; S200. General-assemble the total section of the engine room bottom (200), the upper platform total section of the engine room (300), the stern total section of the engine room (400), the front island total section (500) and the rear island total section (600) respectively on the ground; then hoist the total section of the engine room bottom (200), the upper platform total section of the engine room (300), and the stern total section of the engine room (400) to the platform line respectively and carry out coaming butt joint to form the stern half of the ship; S300. General-assemble each of the annular total sections (700) on the ground; S400. The modular transporter (1000) transports the annular total section (700) to the platform line and carries out coaming butt joint between the coaming joint of the annular total section (700) and the target coaming joint; wherein, the target coaming joint is the coaming joint of the stern half of the ship or the coaming joint of each of the annular total sections (700).

2. The hull manufacturing method according to claim 1, characterized in that, The step S200 includes sub-steps: S210. General-assemble the total section of the engine room bottom (200), the upper platform total section of the engine room (300), the stern total section of the engine room (400), the front island total section (500) and the rear island total section (600) respectively on the ground; S220. Hoist the total section of the engine room bottom (200) and the upper platform total section of the engine room (300) to the platform line in sequence; S230. Carry out coaming butt joint between the total section of the engine room bottom (200) and the upper platform total section of the engine room (300) located at the upper end of the total section of the engine room bottom (200); S240. Hoist the stern total section of the engine room (400) to the platform line; S250. Carry out coaming butt joint between the stern total section of the engine room (400) and the total section of the engine room bottom (200) and the upper platform total section of the engine room (300) located at the front end of the stern total section of the engine room (400) to form the stern half of the ship.

3. The hull manufacturing method according to claim 1, characterized in that The step S300 includes sub-steps: S310. Hoist the bottom section (710) to the designated position on the ground and fix it with a temporary support device; S320. Hoist two bilge sections (720) to both sides of the bottom section (710), and carry out butt joint welding between the bilge section (720) and the bottom section (710); S330. Hoist the longitudinal bulkhead section (730) and the transverse bulkhead section (740) to the enclosed area of the bilge section (720) and the bottom section (710), weld and fix the longitudinal bulkhead section (730) to the bottom section (710), and weld and fix the transverse bulkhead section (740) to the bilge section (720) and the bottom section (710). S340. Hoist the two side shell sections (750) respectively above the two bilge sections (720), perform butt joint welding on the side shell section (750) and the bilge section (720), and at the same time weld and fix the side shell section (750) to the transverse bulkhead section (740). S350. Hoist the deck section (760) above the side shell section (750), and weld and fix the deck section (760) to the side shell section (750), the longitudinal bulkhead section (730) and the transverse bulkhead section (740). S360. Install the outfitting parts inside the ring block (700).

4. The hull manufacturing method according to claim 3, characterized in that, After sub-step S350, there is also a sub-step: S370. Conduct airtightness detection on all welds between the bottom section (710), the bilge section (720), the side shell section (750), the deck section (760), the longitudinal bulkhead section (730) and the transverse bulkhead section (740) and meet the airtightness standard.

5. The hull manufacturing method according to claim 1, characterized in that, Step S400 includes sub-steps: S410. The modular transporter (1000) loads the ring block (700). S420. The modular transporter (1000) transports the ring block (700) to a position where the joint of the ring block (700) is opposite to the target joint, and positions the ring block (700). S430. The modular transporter (1000) unloads and places the ring block (700) on the dock pier (800) and the support structure (900). S440. Perform joint welding on the joint of the ring block (700) and the target joint.

6. The hull manufacturing method according to claim 5, characterized in that, Sub-step S410 includes sub-sub-steps: S411. Trim the surplus at the joint of the ring block (700). S412. Use the jacking equipment to jack up the ring block (700) to a preset height. S413. The modular transporter (1000) slowly jacks up synchronously with the jacking equipment until it abuts against the ring block (700), and the jacking equipment retracts, completing the transfer of the ring block (700) onto the modular transporter (1000).

7. The hull manufacturing method according to claim 5, characterized in that, Sub-step S420 includes sub-sub-steps: S421. The modular transporter (1000) transports the ring block (700) in the direction close to the target joint to the first calibration position, and performs the first position calibration on the ring block (700); wherein, the first calibration position is a position where the joint of the ring block (700) is 8 m to 12 m away from the target joint. S422. The modular transporter (1000) continues to carry the annular section (700) and move it in the direction closer to the target mating opening, and continuously adjusts the center line of the annular section (700) during the movement.

8. The hull manufacturing method according to claim 7, characterized in that After the sub-step S422, there are further sub-steps: S423. The modular transporter (1000) carries the annular section (700) and moves it in the direction closer to the target mating opening to a second calibration position, and performs a second position calibration on the annular section (700); wherein, the second calibration position is a position where the mating opening of the annular section (700) is 40 mm to 60 mm away from the target mating opening.

9. The hull manufacturing method according to claim 5, characterized in that, The sub-step S430 includes sub-steps: S431. Horizontally adjust the dock pier (800) and the support structure (900), and adjust the heights of the dock pier (800) and the support structure (900) to a preset height; S432. The modular transporter (1000) descends to a preset height so that the annular section (700) is placed on the dock pier (800) and the support structure (900); S433. Weld a temporary support structure (900) on the annular section (700) for restraining the annular section (700); S434. The modular transporter (1000) continues to descend until it is separated from the annular section (700) to unload the annular section (700) onto the dock pier (800) and the support structure (900).

10. The hull manufacturing method according to any one of claims 1 to 9, characterized in that, After the step S400, there is also a step: S500. Hoist the rear island section (600) and the front island section (500) onto the platform line in sequence, and weld the rear island section (600) and the front island section (500) to the stern half ship.

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