Modular division method for building a heavy lift vessel

Abstract

The present application relates to the technical field of ship design and construction, and discloses a modular division method for building a heavy-lift ship, comprising the following steps: S1, dividing the hull of the heavy-lift ship into a plurality of functional areas according to functional attributes; S2, checking whether the weight of the functional area exceeds the maximum load of the lifting equipment; S3, if the weight does not exceed the maximum load of the lifting equipment, setting the functional area as a first large module; S4, if the weight exceeds the maximum load of the lifting equipment, dividing the functional area into a plurality of sub-areas, and setting each sub-area as a second large module; S5, dividing each first large module and each second large module into a plurality of small modules, so that each small module is adapted to a corresponding processing workshop; and S6, dividing adjacent small modules in the first large module into a first middle module, and dividing adjacent small modules in the second large module into a second middle module, and the size of each middle module is adapted to the spraying processing range of a coating site.

Description

Technical Field

[0001] This invention relates to the technical field of ship design and construction, and in particular to a modular division method for constructing heavy-lift vessels. Background Technology

[0002] In the shipbuilding industry, modular construction is currently the mainstream process widely adopted by shipyards. This method involves disassembling the hull into several sections for phased manufacturing, and then assembling them together to complete the overall assembly. However, this traditional model is highly dependent on the shipyard's hardware facilities, specifically: the design and division of sections must be strictly limited by the maximum lifting capacity of the cranes, the load-bearing capacity and size limitations of the transport vehicles, the space capacity of the section manufacturing area, and the operating range of the rust removal and painting room.

[0003] The aforementioned hardware limitations directly lead to a strict compression of the total tonnage and size of traditional sections. For example, in medium-sized ocean-going vessels (with an empty weight of tens of thousands of tons), the weight and size of individual sections are also difficult to overcome equipment bottlenecks. This limitation further makes it difficult to achieve complete assembly in the pre-outfitting stage due to the small size of the sections. A large number of outfitting components must be installed during the dock assembly stage, which not only increases the risks of high-altitude and cross-operations but also reduces the rationality and efficiency of pre-outfitting. The large number of sections leads to a significant increase in the number of hoisting operations during the assembly stage, and at the same time, the number of hull joints surges, which increases the difficulty of precision control and the amount of welding work and potential quality risks.

[0004] Therefore, improving the efficiency of pre-outfitting operations and the quality of welding operations has become an urgent technical problem to be solved. Summary of the Invention

[0005] The technical problem to be solved by this invention is: how to improve the efficiency of pre-outfitting operations and the quality of welding operations.

[0006] To address the aforementioned technical problems, this invention provides a modular division method for constructing heavy-lift vessels, comprising: S1, dividing the hull of the heavy-lift vessel into several functional areas according to functional attributes; S2, checking whether the weight of a functional area exceeds the maximum load of the lifting equipment; S3, if the weight of a functional area does not exceed the maximum load of the lifting equipment, then setting the functional area as a first large module; S4, if the weight of a functional area exceeds the maximum load of the lifting equipment, then dividing the functional area into several sub-areas based on the deck, platform, or bulkhead of the hull, and the weight of each sub-area does not exceed the maximum load of the lifting equipment, and each sub-area is set as a second large module; S5, based on the deck, platform, or bulkhead of the hull, dividing each first large module and each second large module into multiple small modules, so that each small module is adapted to the corresponding processing workshop; S6, dividing adjacent small modules belonging to the first large module into first intermediate modules, dividing adjacent small modules belonging to the second large module into second intermediate modules, and the dimensions of each first intermediate module and each second intermediate module are adapted to the spraying processing range of the painting site.

[0007] In one embodiment, several functional areas include a stern and engine room areas, which are divided into three second large modules: a lower engine room module, an upper engine room module, and a stern module. In the length direction, based on the hull bulkheads, the lower engine room module is divided into a stern shaft section and an engine room bottom section, with the stern shaft section being a small module. In the height direction, based on the hull deck or platform, the engine room bottom section is divided into two first layers. The upper first layer is divided into two first segments in both the length and width directions, resulting in four first zones. The lower first layer is also divided into two first segments in the length direction, resulting in two first zones, each of which is a small module. In the height direction, based on the hull deck or platform, the upper engine room module is divided into three second layers, each of which is divided into two second segments in both the length and width directions, resulting in twelve second zones, each of which is a small module. Each section is a small module; in the height direction, with the deck or platform of the hull as the reference, the stern large module is divided into three third layers; in the width direction, with the bulkhead of the hull as the reference, the upper and middle third layers are each divided into two third sections, and the lower third layer is divided into three third sections, resulting in seven third zones, each of which is a small module; a small module divided by the stern shaft section is divided into a second middle module; the lower first layer includes two small modules, which are divided into a middle module; the upper first layer includes four small modules, with two adjacent small modules along the length direction being divided into a middle module; any second layer includes four small modules, with two adjacent small modules along the length direction being divided into a middle module; any third layer in the upper and middle sections includes two small modules, which are divided into a middle module; the lower third layer includes three small modules, which are divided into a middle module.

[0008] In one embodiment, the middle module of the upper cabin large module is provided with a reverse jacking outfitting pre-assembly unit, and the deviation distance between the interface of the reverse jacking outfitting pre-assembly unit and the corresponding interface of the middle module of the tail large module is less than or equal to 5 mm.

[0009] In one embodiment, several functional areas include a cargo hold area, which is divided into four second large modules. These four second large modules are a first ring-shaped large module, a second ring-shaped large module, a third ring-shaped large module, and a fourth ring-shaped large module. The first, second, third, and fourth ring-shaped large modules are arranged from the bow near the hull to the stern near the hull. In the vertical direction, the fourth ring-shaped large module is divided into two fourth layers. The upper fourth layer is divided into two fourth segments in both the length and width directions. The two fourth segments in the upper fourth layer that are closest to the stern of the hull are... Each section is divided into two sub-segments in the height direction to obtain six fourth zones. The lower fourth layer is divided into two fourth segments in both the length and width directions to obtain four fourth zones, each of which is a small module. In the height direction, the first ring segment large module, the second ring segment large module, and the third ring segment large module are each divided into two fourth layers. Each of the two fourth layers is divided into two fourth segments in both the length and width directions to obtain eight fourth zones, each of which is a small module. In any fourth layer, two adjacent small modules along the length direction are divided into a medium module.

[0010] In one embodiment, when the first, second, third, and fourth ring-shaped large modules of the cargo hold area are divided into smaller modules, the outer plate of the cargo hold is used as a frame plate, so that the frame formed by the inner bottom ribbed longitudinal girder or the frame formed by the longitudinal wall ribbed longitudinal girder can be flipped 180 degrees and fastened to the outer plate of the side. The upper fourth layer of the smaller modules is pre-installed with support block boxes, and the lower fourth layer of the smaller modules is pre-installed with embedded box seats.

[0011] In one embodiment, several functional areas include a bow area, which is divided into two second large modules, namely a lower large module and an upper large module. In the length direction, based on the hull bulkheads, the lower large module is divided into three fifth sections. In the height direction, based on the hull deck or platform, the fifth section near the bow is divided into two fifth layers, each fifth layer being further divided into a fifth sub-section to obtain two fifth zones. In the height direction, based on the hull deck or platform, the other two fifth sections are divided into three fifth layers. In the width direction, based on the hull bulkheads, any fifth layer is divided into... Two fifth sub-segments are formed to obtain twelve fifth zones; each fifth zone is set as a small module; in the height direction, with the deck or platform of the hull as the reference, the upper large module is divided into two sixth layers; in the width direction, with the bulkhead of the hull as the reference, each sixth layer is divided into two sixth segments to obtain twelve sixth zones, each sixth zone is set as a small module; in the lower large module, the lower fifth layer of the other two fifth segments each includes two small modules, which are divided into a medium module; the other small modules are each divided into a medium module; in any sixth layer, two adjacent small modules along the length direction are divided into a medium module.

[0012] In one embodiment, the lower large module is divided into two medium modules by two small modules. One medium module adopts a normal total group, and the other medium module adopts a left and right total group.

[0013] In one embodiment, several functional areas include a heavy lifting area, which is divided into a second large module, the second large module being a heavy lifting module; in the height direction, with the deck or platform of the hull as a reference, the heavy lifting module is divided into two seventh layers, each of the seventh layers is divided into a seventh segment to obtain two seventh partitions, each of the seventh partitions being set as a small module; the two small modules of the heavy lifting module are divided into a medium module.

[0014] In one embodiment, the deck or platform of the hull includes the outer plate mating surface of the lifting column. The two small modules of the heavy lifting module have the same mating bevel orientation on the outer plate mating surface, so that when the two small modules are divided into medium modules, single-sided welding and double-sided forming can be completed on the outer plate mating surface without flipping the two small modules.

[0015] In one embodiment, several functional areas include a superstructure area, which is divided into a second large module, the second large module being the superstructure large module; in the height direction, based on the deck or platform of the hull, the superstructure large module is divided into five eighth layers; in the width direction, any eighth layer is divided into two eighth segments to obtain ten eighth partitions, each eighth partition being a small module; any eighth layer includes two small modules, the two small modules being divided into a medium module.

[0016] In one embodiment, a standardized connector is pre-installed on the mating surface of any eighth-layer sub-module. The standardized connector includes one or more combinations of the following: bolt holes, locating pin holes, and flange interfaces.

[0017] In one embodiment, several functional areas include a chimney area, which is divided into a second large module, which is the chimney large module; in the height direction, with the deck or platform of the hull as a reference, the chimney large module is divided into two ninth layers, and any ninth layer is divided into a ninth segment to obtain two ninth partitions, each of which is set as a small module; the two small modules of the chimney large module are divided into a medium module.

[0018] In one embodiment, the upper ninth layer small module is provided with a louver installation interface, and the lower ninth layer small module is provided with a ventilation duct interface, with the louver installation interface and the ventilation duct interface being coaxial.

[0019] In one embodiment, the height of any medium module is less than or equal to the maximum support height of the gantry, and the width or length of any medium module is less than or equal to the span range of the gantry, so that when multiple small modules are divided into medium modules, normal or inverse construction can be achieved.

[0020] In one embodiment, the weight of any module is less than or equal to the carrying capacity of the transport vehicle, and the lifting point of the module coincides with the location of the reinforcing structure of the deck, platform, or bulkhead of the hull.

[0021] Compared with the prior art, the modular division method for constructing heavy-lift vessels according to an embodiment of the present invention has the following advantages:

[0022] Compared to the traditional segmented construction method's logic of "passively adapting to hardware limitations," the division steps of this invention are more proactive and systematic. Traditional methods directly cut segments according to the hardware's upper limit, resulting in fragmented segments and functionally isolated components. In contrast, this invention first divides areas according to functional attributes, and then dynamically determines the first or second largest module based on the load of the lifting equipment. This not only breaks through the tonnage limitations of traditional segmentation but also improves pre-outfitting efficiency through functional integrity. The subsequent steps of subdividing the deck and other structures into smaller modules to adapt to the processing workshop and integrating them into medium modules to adapt to the painting site specifically address the problems of low site utilization and numerous dockside operations caused by the chaotic dimensions of traditional segmentation. After multiple small modules are processed, they can be assembled into medium modules without waiting for final assembly, and then proceed to the pre-outfitting and painting steps. Ultimately, through the logic of "functional priority and hierarchical adaptation," this invention fundamentally breaks the vicious cycle of "hardware limitations → fragmented segments → uncontrolled cycles" inherent in traditional methods. Attached Figure Description

[0023] Figure 1 This is a schematic flowchart illustrating a modular division method for constructing a heavy-lift vessel, as exemplarily shown in an embodiment of the present invention.

[0024] Figure 2 This is a schematic diagram illustrating the functional area division of a modular partitioning method for constructing a heavy-lift vessel, as exemplarily shown in an embodiment of the present invention.

[0025] Figure 3 This is a schematic diagram illustrating the modular division method for constructing heavy-lift vessels, as exemplarily shown in an embodiment of the present invention, representing the division of large modules.

[0026] Figure 4 This is a partial view A of a small module of a modular division method for constructing a heavy-lift vessel, as exemplarily illustrated in an embodiment of the present invention.

[0027] Figure 5 This is a partial view B of a small module of a modular division method for constructing a heavy-lift vessel, as exemplarily illustrated in an embodiment of the present invention.

[0028] Figure 6 This is a partial view C of a small module of a modular division method for constructing a heavy-lift vessel, as exemplarily illustrated in an embodiment of the present invention.

[0029] Figure 7 This is a partial view D of a small module of a modular division method for constructing a heavy-lift vessel, as exemplarily illustrated in an embodiment of the present invention.

[0030] Figure 8 This is a stern view of the middle module of a modular division method for constructing a heavy-lift vessel, as exemplarily illustrated in an embodiment of the present invention.

[0031] Figure 9This is a front view of a small module of a modular division method for constructing a heavy-lift vessel, as exemplarily illustrated in an embodiment of the present invention.

[0032] Figure label:

[0033] 1. Hull; 10. Functional Areas; 11. Aft Engine Room Area; 12. Cargo Hold Area; 13. Bow Area; 14. Superstructure Area; 15. Heavy Lift Area; 16. Funnel Area; 101. Lower Engine Room Module; 1011. Stern Shaft Section; 1012. Bottom Section of Engine Room; 1013. First Layer; 102. Upper Engine Room Module; 1021. Second Layer; 103. Aft Module; 1031. Third Layer; 104. First... Ring segment large module, 1041, fourth layer, 105, second ring segment large module, 106, third ring segment large module, 107, fourth ring segment large module, 108, lower large module, 1081, fifth layer, 109, upper large module, 1091, sixth layer, 110, heavy lifting large module, 1101, seventh layer, 111, superstructure large module, 1111, eighth layer, 112, chimney large module, 1121, ninth layer. Detailed Implementation

[0034] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0035] In the description of this invention, it should be understood that the terms "first," "second," etc., in the specification, claims, and accompanying drawings are intended to distinguish similar objects and are not intended to describe a specific structure. It should be understood that such terms are interchangeable where appropriate so that embodiments of the invention can be implemented in structures other than those illustrated or described. Furthermore, "comprising," "having," and any variations thereof are intended to cover non-exclusive inclusions. For example, a product or device comprising a series of components or units is not necessarily limited to those explicitly listed, but may also include other components or units not explicitly listed but inherent to these products or devices.

[0036] In the shipbuilding industry, modular construction is currently the mainstream process widely adopted by shipyards. This method involves disassembling the hull into several sections for phased manufacturing, and then assembling them together to complete the overall assembly. However, this traditional model is highly dependent on the shipyard's hardware facilities, specifically: the design and division of sections must be strictly limited by the maximum lifting capacity of the cranes, the load-bearing capacity and size limitations of the transport vehicles, the space capacity of the section manufacturing area, and the operating range of the rust removal and painting room.

[0037] The aforementioned hardware limitations directly lead to a strict compression of the total tonnage and size of traditional sections. For example, in medium-sized ocean-going vessels (with an empty weight of tens of thousands of tons), the weight and size of individual sections are also difficult to overcome equipment bottlenecks. This limitation further makes it difficult to achieve complete assembly in the pre-outfitting stage due to the small size of the sections. A large number of outfitting components must be installed during the dock assembly stage, which not only increases the risks of high-altitude and cross-operations but also reduces the rationality and efficiency of pre-outfitting. The large number of sections leads to a significant increase in the number of hoisting operations during the assembly stage, and at the same time, the number of hull joints surges, which increases the difficulty of precision control and the amount of welding work and potential quality risks.

[0038] Based on this, such as Figure 1 The flowchart shown, combined with... Figure 2 and Figure 3 The diagram shown illustrates a modular division method for constructing a heavy-lift vessel, according to a preferred embodiment of the present invention, comprising:

[0039] S1. Divide the hull 1 of the heavy-lift vessel into several functional areas 10 according to its functional attributes.

[0040] S2. Check whether the weight of functional area 10 exceeds the maximum load of the lifting equipment.

[0041] S3. If the weight of functional area 10 does not exceed the maximum load of the lifting equipment, then functional area 10 is set as the first major module.

[0042] S4. If the weight of functional area 10 exceeds the maximum load of the lifting equipment, the functional area 10 shall be divided into several sub-areas based on the deck, platform or bulkhead of the hull 1, and the weight of each sub-area shall not exceed the maximum load of the lifting equipment. Each sub-area shall be set as a second major module.

[0043] S5. Based on the deck, platform or bulkhead of hull 1, each first major module and each second major module are divided into multiple smaller modules, so that each smaller module can be adapted to the corresponding processing workshop.

[0044] S6. Divide adjacent small modules belonging to the first major module into first medium modules, and divide adjacent small modules belonging to the second major module into second medium modules. The size of each first medium module and the size of each second medium module are adapted to the spraying processing range of the painting site.

[0045] The modular division method for heavy-lift vessels provided by this invention addresses many pain points of the traditional segmented construction method through hierarchical and functional modular division logic, and its beneficial effects are reflected in multiple aspects.

[0046] Firstly, traditional segmentation is forced to be too finely divided due to hardware limitations. In contrast, this invention, through a hierarchical division logic of "functional area 10 → large module → medium module → small module," maximizes the tonnage and size of individual modules while meeting the limitations of lifting equipment, transportation vehicles, and site conditions. For example, the first and second large modules can achieve a level of integration far exceeding that of traditional segmentation, reducing the total number of modules and lowering the complexity of subsequent assembly operations from the outset.

[0047] This integrated design allows modules to be pre-assembled more comprehensively before leaving the factory, avoiding the "fragmented" manufacturing problem caused by the small size of traditional segments, and improving construction efficiency.

[0048] Secondly, due to the larger size and greater functional integrity of the large and medium modules, pre-outfitting allows for more comprehensive installation of outfitting components (such as pipelines, equipment, interior trim, etc.) during the module stage, significantly reducing the amount of high-altitude and cross-operations during the dock closure stage.

[0049] The improved integrity of pre-outfitting directly reduces operational interference between various specialties during the dock phase, shortens dock occupancy time, and lays the foundation for controllable construction cycle.

[0050] Combining the first and second aspects, it is not difficult to conclude that in the third aspect, the increased integration of individual modules significantly reduces the number of assemblies required for lifting. The reduction in the number of assemblies means a decrease in the number of alignment operations, thereby reducing the scheduling pressure on lifting equipment and the risks of lifting operations.

[0051] At the same time, the number of joints between modules has been greatly reduced, which not only reduces the amount of welding work, but also reduces the difficulty of precision control and quality risks (such as welding deformation and leakage risks) caused by too many joints, and improves the overall stability of the hull 1 structure.

[0052] Fourthly, the design of the small module-adapted processing workshop ensures that each processing step can be carried out in parallel, avoiding the problems of idle space or waiting for processes caused by size mismatch in traditional segmentation.

[0053] The design of the medium module adapts to the spraying range of the painting site, which allows the painting operation to be completed in a concentrated manner at the module stage, reducing painting rework at the dock stage and improving site utilization.

[0054] The combined effect of these optimizations effectively reduced cross-interference between different specialties during the dock phase, making the construction cycle of a single ship easier to control and significantly improving the shipyard's capacity efficiency.

[0055] The modular division method of the present invention is not a fixed pattern, but rather a hierarchical check and adjustment of “functional area 10 → large module → medium module → small module” (such as dynamically dividing large modules or sub-areas according to the load of the lifting equipment). This can flexibly adapt to the hardware conditions of different shipyards (such as cranes with different lifting capacities and painting rooms of different sizes), thereby improving the universality and practicality of the method.

[0056] In one embodiment, such as Figure 4 The partial view A shown shows several functional areas 10 including the tail section and the cabin area, which are divided into three second large modules: the lower cabin module 101, the upper cabin module 102, and the tail section module 103.

[0057] When dividing into smaller modules, such as Figure 4 As shown in the figure, "×1" indicates a small module in the width direction, "×2" indicates two small modules in the width direction, and "×3" indicates three small modules in the width direction. In the length direction, based on the bulkhead of hull 1, the lower engine room module 101 is divided into a stern shaft section 1011 and an engine room bottom section 1012. The stern shaft section 1011 is divided into a small module. In the height direction, based on the deck or platform of hull 1, the engine room bottom section 1012 is divided into two first layers 1013. The upper first layer 1013 is divided into two first segments in both the length and width directions to obtain four first zones. The lower first layer 1013 is divided into two first segments in the length direction to obtain two first zones. Each first zone is set as a small module. In the vertical direction, with the deck or platform of hull 1 as the reference, the upper engine room module 102 is divided into three second layers 1021. Each second layer 1021 is further divided into two second sections in both the length and width directions, resulting in twelve second zones. Each second zone is a small module. In the vertical direction, with the deck or platform of hull 1 as the reference, the stern module 103 is divided into three third layers 1031. In the width direction, with the bulkheads of hull 1 as the reference, the upper and middle third layers 1031 are each divided into two third sections, and the lower third layer 1031 is divided into three third sections, resulting in seven third zones. Each third zone is a small module.

[0058] When dividing into modules, such as Figure 8As shown in the figure, "×1" indicates one middle module in the width direction, and "×2" indicates two middle modules in the width direction. A small module divided by the tail shaft segment 1011 is classified as a second middle module. The lower first layer 1013 includes two small modules, which are classified as a middle module. The upper first layer 1013 includes four small modules, with two adjacent small modules along the length direction classified as a middle module. Any second layer 1021 includes four small modules, with two adjacent small modules along the length direction classified as a middle module. Any third layer 1031 located in the upper and middle sections includes two small modules, which are classified as a middle module. The lower third layer 1031 includes three small modules, which are classified as a middle module.

[0059] In the above embodiments, the tail section and cabin area comprise a total of three large modules, seven small modules, and four medium modules.

[0060] By dividing the tail shaft segment 1011 into the irregular structure at the rear of the large lower cabin module 101, the processing difficulties caused by the mixing of irregular structures with conventional areas in traditional segmentation are avoided. This also allows the key component to be precision manufactured in a dedicated workshop in advance, reducing subsequent assembly errors.

[0061] Meanwhile, in response to the gradual shape change from top to bottom, the upper first layer 1013 is additionally divided in the width direction to adapt to the complex contour, while the lower first layer 1013 is only divided along the length direction to simplify the processing flow of the regular structure. This subdivision strategy, which adjusts as needed, not only ensures the compatibility of small modules with the processing workshop, but also reduces unnecessary cutting, making the module division of the engine room bottom section 1012 more in line with the actual structure of the hull 1, further improving processing efficiency and assembly accuracy, and laying the foundation for the efficient implementation of subsequent module integration, pre-outfitting, and painting operations.

[0062] Based on the above embodiments, the middle module of the upper cabin large module 102 may be equipped with a reverse jacking outfitting pre-assembly unit, and the deviation distance between the interface of the reverse jacking outfitting pre-assembly unit and the corresponding interface of the middle module of the tail large module 103 is less than or equal to 5 mm.

[0063] The middle module of the upper engine room large module 102 is equipped with a pre-assembly unit for reverse pipe jacking outfitting, and the interface deviation between it and the corresponding middle module of the stern large module 103 is less than or equal to 5 mm. This allows for pre-assembly at the middle module stage, reducing the cumbersome on-site assembly in the dock. Strict control of interface deviations is achieved through precise pre-planning, ensuring accurate subsequent docking, reducing the workload of repairs, mitigating risks such as leakage, and improving the integrity of pre-outfitting and overall construction quality.

[0064] In one embodiment, several functional areas 10 include a cargo hold area 12, which is divided into four second large modules. The four second large modules are a first ring section large module 104, a second ring section large module 105, a third ring section large module 106, and a fourth ring section large module 107. The first ring section large module 104, the second ring section large module 105, the third ring section large module 106, and the fourth ring section large module 107 are arranged from the bow near the hull 1 to the stern near the hull 1.

[0065] When dividing into smaller modules, such as Figure 5 and Figure 6 As shown in the figure, "×2" indicates two small modules in the width direction. In the height direction, the fourth ring segment large module 107 is divided into two fourth layers 1041. The upper fourth layer 1041 is divided into two fourth segments in both the length and width directions. The two fourth segments near the stern of the hull 1 in the upper fourth layer 1041 are each divided into two sub-segments in the height direction, resulting in six fourth zones. The lower fourth layer 1041 is divided into two fourth segments in both the length and width directions, resulting in four fourth zones, each of which is a small module. In the height direction, the first ring segment large module 104, the second ring segment large module 105, and the third ring segment large module 106 are each divided into two fourth layers 1041. The two fourth layers 1041 are divided into two fourth segments in both the length and width directions, resulting in eight fourth zones, each of which is a small module.

[0066] When dividing into modules, such as Figure 8 and Figure 9 As shown in the figure, "×1" indicates a middle module in the width direction, and "×2" indicates two middle modules in the width direction. In any fourth layer 1041, two adjacent small modules along the length direction are divided into a middle module.

[0067] In the above embodiments, due to the regular shape of the cargo hold area 12, most of the structures adopt a similar division method, which simplifies the design process, facilitates standardized processing, and improves construction efficiency. For the fourth ring section large module 107, the two fourth sections near the stern of the upper fourth layer 1041 are divided into two sub-sections in the height direction. This design fully considers its connection requirements with the stern and engine room area's lower engine room large module 101, as well as the layout characteristics of the passageways between the two areas. This ensures precise docking of the cargo hold area 12 with the stern and engine room areas, avoiding the problems of excessive assembly gaps or misalignment caused by insufficient consideration of connection in traditional sections. It also provides a structural foundation for the smooth layout of passageways between areas, further improving the overall structural continuity and functionality of the hull 1, and making subsequent assembly operations more efficient and precise.

[0068] In one embodiment, when the first ring-shaped large module 104, the second ring-shaped large module 105, the third ring-shaped large module 106, and the fourth ring-shaped large module 107 of the cargo hold area 12 are divided into small modules, the outer plate of the cargo hold is used as the frame plate, so that the frame formed by the inner bottom ribbed longitudinal girder or the frame formed by the longitudinal wall ribbed longitudinal girder can be flipped 180 degrees and fastened to the outer plate of the side. The small modules of the upper fourth layer 1041 are pre-installed with support block boxes, and the small modules of the lower fourth layer 1041 are pre-installed with embedded box seats.

[0069] Using the cargo hold outer plating as a frame, the frame formed by the inner bottom or longitudinal wall with ribs and longitudinal girder can be flipped 180 degrees and fastened to the side outer plating. This design not only uses the regular shape of the outer plating as a benchmark to improve the frame assembly accuracy, but also achieves convenient switching between front and back operations by flipping and fastening, reducing the cost and time of frame erection in traditional segmented construction.

[0070] Meanwhile, the upper fourth layer 1041 pre-installed support block boxes and the lower fourth layer 1041 pre-installed embedded box seats integrate functional components into the modules in advance. This avoids high-altitude pre-assembly operations in the dock stage and ensures the compatibility of components with the hull 1 structure through precise positioning in the module stage. This further reduces the amount of adjustment work during assembly, allowing the modular construction of the cargo hold area 12 to achieve better synergy in terms of precision, efficiency and functionality.

[0071] In one embodiment, several functional areas 10 include a head area 13, which is divided into two second large modules, namely a lower large module 108 and an upper large module 109.

[0072] When dividing into smaller modules, such as Figure 7As shown in the diagram, "×1" indicates a small module in the width direction, and "×2" indicates two small modules in the width direction. In the length direction, based on the bulkhead of hull 1, the lower large module 108 is divided into three fifth sections. In the height direction, based on the deck or platform of hull 1, the fifth section near the bow of hull 1 is divided into two fifth layers 1081, each fifth layer 1081 being further divided into a fifth sub-section, resulting in two fifth zones. In the height direction, based on the deck or platform of hull 1, the other two fifth sections are divided into three fifth layers 1081. In the width direction, based on the bulkhead of hull 1, any fifth layer 1081 is divided into two fifth sub-sections, resulting in twelve fifth zones. Each fifth zone is considered a small module. In the height direction, with the deck or platform of hull 1 as the reference, the upper large module 109 is divided into two sixth layers 1091. In the width direction, with the bulkhead of hull 1 as the reference, each sixth layer 1091 is divided into two sixth sections to obtain twelve sixth zones, each sixth zone being set as a small module.

[0073] When dividing into modules, such as Figure 9 As shown in the diagram, "×1" indicates one medium module in the width direction, and "×2" indicates two medium modules in the width direction. In the lower large module 108, the lower fifth layer 1081 of the other two fifth segments each includes two small modules, which are divided into one medium module. All other small modules are also divided into one medium module. In the upper large module 109, in any sixth layer 1091, two adjacent small modules along the length direction are divided into one medium module.

[0074] For small modules on platforms or decks without important equipment bases and with relatively empty structures, module assembly is not planned due to the risk of deformation when multiple modules are turned over. This on-demand combination strategy avoids unnecessary structural damage and reduces ineffective assembly procedures, making the module division more in line with actual construction needs and further improving the accuracy and economy of the construction of the bow area 13.

[0075] In one embodiment, the lower large module 108 is divided into two medium modules by two small modules. One medium module adopts a normal total group, and the other medium module adopts a left and right total group.

[0076] For the two small modules below the equipment compartment floor frame, a normalized modular assembly is adopted, which can centrally complete the outfitting and painting work in this area, ensuring complete pre-assembly before final assembly, reducing the amount of low-altitude work in the dock stage, and improving the protective performance of the equipment compartment.

[0077] By assembling the two small modules at the bottom center into left and right groups, and using them as the basic structure of the large module, the overall rigidity can be enhanced through combination, providing stable support for the subsequent assembly of the upper module and reducing the risk of structural swaying during the final assembly stage.

[0078] In one embodiment, several functional areas 10 include a heavy lifting area 15, which is divided into a second large module, namely a heavy lifting large module 110.

[0079] When dividing into smaller modules, such as Figure 6 As shown in the figure, "×1" indicates a small module in the width direction. In the height direction, with the deck or platform of the hull 1 as the reference, the heavy lifting module 110 is divided into two seventh layers 1101. Each seventh layer 1101 is divided into a seventh segment to obtain two seventh partitions, each of which is set as a small module.

[0080] When dividing into modules, such as Figure 8 As shown in the figure, "×1" indicates that there is a medium module in the width direction, and the two small modules of the heavy lifting module 110 are divided into a medium module.

[0081] Based on this, in one embodiment, the deck or platform of the hull 1 includes the outer plate mating surface of the lifting column. The two small modules of the heavy lifting module 110 have the same mating bevel orientation on the outer plate mating surface, so that when the two small modules are divided into medium modules, they can complete single-sided welding and double-sided forming on the outer plate mating surface without flipping the two small modules.

[0082] Using the outer plate of the lifting column as one of the reference surfaces for the deck or platform, and ensuring that the bevels of the two small modules face the same direction, allows for direct welding during the assembly of the middle module without flipping the small modules, achieving single-sided welding with double-sided forming. This design avoids the flipping and adjustment process caused by inconsistent bevel orientation in traditional segmentation, reducing the time cost of module alignment and the risk of structural impact. Furthermore, the unified bevel direction ensures the standardization of welding operations, improves the forming quality and strength stability of the butt weld, and provides process assurance for the structural safety of core load-bearing components such as the lifting column. This allows for a dual optimization of efficiency and reliability in the integration of the middle modules of the heavy-duty lifting module 110.

[0083] In one embodiment, several functional areas 10 include an upper building area 14, which is divided into a second large module, the second large module being an upper building module 111.

[0084] When dividing into smaller modules, such as Figure 7As shown in the figure, "×2" indicates that there are two small modules in the width direction. In the height direction, with the deck or platform of the hull 1 as the reference, the large module 111 is divided into five eighth layers 1111. In the width direction, any eighth layer 1111 is divided into two eighth segments to obtain ten eighth sections, and each eighth section is set as a small module.

[0085] When dividing into modules, such as Figure 9 As shown in the figure, "×1" indicates a medium module in the width direction. Any eighth layer 1111 includes two small modules, which are divided into a medium module.

[0086] The superstructure area 14 is divided into a large superstructure module 111, which is further divided into five eighth layers 1111 in the height direction according to the deck or platform reference. Each layer is divided into two small modules in the width direction, and then the two small modules in the same layer are integrated into a medium module. This design precisely adapts to the hollow and easily deformable characteristics of the superstructure segments.

[0087] Because the superstructure is relatively open, the smaller modules can be individually adapted to the pre-outfitting site, facilitating targeted outfitting operations and avoiding the deformation risks that might result from assembling multiple small modules together. Furthermore, the layered integration into medium-sized modules ensures the structural stability of each individual module while also accommodating the work area of ​​the painting site. This allows superstructure area 14 to efficiently complete pre-outfitting and painting during modular construction, while also reducing potential structural deformation risks and improving overall construction quality and efficiency.

[0088] In one embodiment, a standardized connector is pre-installed on the mating surface of any of the small modules of the eighth layer 1111. The standardized connector includes one or more combinations of the following: bolt holes, locating pin holes, and flange interfaces.

[0089] In one embodiment, several functional areas 10 include a chimney area 16, which is divided into a second large module, namely a chimney large module 112.

[0090] When dividing into smaller modules, such as Figure 4 As shown in the figure, "×1" indicates a small module in the width direction. In the height direction, with the deck or platform of the hull 1 as the reference, the large funnel module 112 is divided into two ninth layers 1121. Each ninth layer 1121 is divided into a ninth segment to obtain two ninth partitions, each of which is set as a small module.

[0091] When dividing into modules, such as Figure 8 As shown in the figure, "×1" indicates that there is a medium module in the width direction, and the two small modules of the large chimney module 112 are divided into a medium module.

[0092] In one embodiment, the upper ninth layer 1121 has a louver installation interface on its small module, and the lower ninth layer 1121 has a ventilation duct interface on its small module. The louver installation interface and the ventilation duct interface are coaxial.

[0093] The louver installation interface of the upper ninth layer 1121 sub-module is coaxial with the ventilation duct interface of the lower ninth layer 1121 sub-module. This design precisely solves the assembly problem of the ventilation system in the upper building area 14. The coaxial setting ensures that the louvers and ventilation ducts can be precisely connected without additional adjustments when closed, avoiding problems such as duct bending and air leakage caused by misalignment of interfaces in traditional segmented systems. This not only improves the assembly efficiency of the ventilation system, but also ensures smooth airflow and reduces later maintenance costs.

[0094] In one embodiment, the height of any medium module is less than or equal to the maximum support height of the gantry, and the width or length of any medium module is less than or equal to the span range of the gantry, so that when multiple small modules are divided into medium modules, normal or inverse construction can be achieved.

[0095] The design ensures that the height of any intermediate module does not exceed the maximum support height of the gantry, and its width or length does not exceed the gantry span. This design fully adapts to the performance parameters of the construction equipment. Therefore, the intermediate modules can be flexibly constructed in either a normal or reverse manner during assembly, overcoming the limitation of single construction posture caused by equipment constraints in traditional segmented construction. This flexibility not only facilitates the selection of optimal working postures according to construction needs, reducing the risks of working at heights and turning over, but also improves the utilization rate of equipment such as gantry frames, enhancing the overall smoothness of construction.

[0096] In one embodiment, the weight of any module is less than or equal to the carrying capacity of the transport vehicle, and the lifting point of the module coincides with the location of the reinforcing structure of the deck, platform or bulkhead of the hull 1.

[0097] The modular design ensures the module's weight is matched to the transport vehicle's carrying capacity, and the lifting points coincide with the hull's reinforcing structure, reflecting a precise consideration of transportation and lifting safety. This weight matching avoids equipment damage or safety accidents caused by overloading during transport; the coincidence of the lifting points with the reinforcing structure distributes lifting stress to the robust parts of hull 1, preventing module deformation or damage during lifting. This not only ensures the safety of lifting operations but also reduces the amount of repair work caused by structural damage, further enhancing the reliability of modular construction.

[0098] Compared with the prior art, the modular division method for constructing heavy-lift vessels according to an embodiment of the present invention has the following advantages:

[0099] Compared to the traditional segmented construction method's logic of "passively adapting to hardware limitations," the division steps of this invention are more proactive and systematic. Traditional methods directly cut segments according to the hardware's upper limit, resulting in fragmented segments and functionally isolated components. In contrast, this invention first divides areas according to functional attributes, and then dynamically determines the first or second largest module based on the load of the lifting equipment. This not only breaks through the tonnage limitations of traditional segmentation but also improves pre-outfitting efficiency through functional integrity. The subsequent steps of subdividing the deck and other structures into smaller modules to adapt to the processing workshop and integrating them into medium modules to adapt to the painting site specifically address the problems of low site utilization and numerous dockside operations caused by the chaotic dimensions of traditional segmentation. After multiple small modules are processed, they can be assembled into medium modules without waiting for final assembly, and then proceed to the pre-outfitting and painting steps. Ultimately, through the logic of "functional priority and hierarchical adaptation," this invention fundamentally breaks the vicious cycle of "hardware limitations → fragmented segments → uncontrolled cycles" inherent in traditional methods.

[0100] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present invention, and these improvements and substitutions should also be considered within the scope of protection of the present invention.

Claims

1. A modular partitioning method for constructing heavy-lift vessels, characterized in that, include: S1. Divide the hull (1) of the heavy lifting vessel into several functional areas (10) according to its functional attributes. S2. Check whether the weight of the functional area (10) exceeds the maximum load of the lifting equipment; S3. If the weight of the functional area (10) does not exceed the maximum load of the lifting equipment, then the functional area (10) is set as the first large module. S4. If the weight of the functional area (10) exceeds the maximum load of the lifting equipment, the functional area (10) is divided into several sub-areas based on the deck, platform or bulkhead of the hull (1), and the weight of each sub-area does not exceed the maximum load of the lifting equipment. Each sub-area is set as a second large module. S5. Based on the deck, platform or bulkhead of the hull (1), divide each of the first large modules and each of the second large modules into multiple small modules, so that each small module can be adapted to the corresponding processing workshop. S6. The adjacent small modules belonging to the first large module are divided into first medium modules, and the adjacent small modules belonging to the second large module are divided into second medium modules. The size of each first medium module and the size of each second medium module are adapted to the spraying processing range of the coating site.

2. The modular partitioning method according to claim 1, characterized in that, The functional areas (10) include a tail section and a cabin section, which are divided into three second large modules, namely a lower cabin module (101), an upper cabin module (102) and a tail section module (103). In the length direction, with the bulkhead of the hull (1) as a reference, the lower engine room module (101) is divided into a tail shaft section (1011) and an engine room bottom section (1012). The tail shaft section (1011) is divided into a small module. In the height direction, with the deck or platform of the hull (1) as a reference, the engine room bottom section (1012) is divided into two first layers (1013). The upper first layer (1013) is divided into two first segments in both the length and width directions to obtain four first partitions. The lower first layer (1013) is divided into two first segments in the length direction to obtain two first partitions. Each first partition is set as a small module. In the height direction, with the deck or platform of the hull (1) as a reference, the upper engine room module (102) is divided into three second layers (1021), each second layer (1021) is divided into two second segments in both the length and width directions to obtain twelve second partitions, each second partition being set as a small module; In the height direction, with the deck or platform of the hull (1) as a reference, the stern large module (103) is divided into three third layers (1031). In the width direction, with the bulkhead of the hull (1) as a reference, the upper and middle third layers (1031) are each divided into two third segments, and the lower third layer (1031) is divided into three third segments to obtain seven third sections, each of which is set as a small module. A small module divided by the tail shaft segment (1011) is divided into a second medium module; the lower first layer (1013) includes two of the small modules, which are divided into a second medium module; the upper first layer (1013) includes four of the small modules, and two adjacent small modules along the length direction are divided into a second medium module. Each of the second layers (1021) includes four said small modules, and two adjacent said small modules along the length direction are divided into a second middle module; The third layer (1031) located in the upper and middle sections includes two of the small modules, which are divided into a second middle module; the third layer (1031) located in the lower section includes three of the small modules, which are divided into a second middle module.

3. The modular partitioning method according to claim 2, characterized in that, The second intermediate module of the upper cabin large module (102) is provided with a reverse jacking outfitting pre-assembly unit, and the deviation distance between the interface of the reverse jacking outfitting pre-assembly unit and the corresponding interface of the second intermediate module of the tail large module (103) is less than or equal to 5 mm.

4. The modular partitioning method according to claim 1, characterized in that, Several of the functional areas (10) include a cargo hold area (12), which is divided into four second large modules, namely a first ring section large module (104), a second ring section large module (105), a third ring section large module (106) and a fourth ring section large module (107). The first ring section large module (104), the second ring section large module (105), the third ring section large module (106) and the fourth ring section large module (107) are arranged from the bow near the hull (1) to the stern near the hull (1); In the height direction, the fourth ring segment large module (107) is divided into two fourth layers (1041). The upper fourth layer (1041) is divided into two fourth segments in both the length and width directions. The two fourth segments in the upper fourth layer (1041) near the tail of the hull (1) are divided into two sub-segments in the height direction to obtain six fourth partitions. The lower fourth layer (1041) is divided into two fourth segments in both the length and width directions to obtain four fourth partitions. Each fourth partition is set as a small module. In the height direction, the first ring segment large module (104), the second ring segment large module (105) and the third ring segment large module (106) are all divided into two fourth layers (1041). The two fourth layers (1041) are divided into two fourth segments in both the length and width directions to obtain eight fourth partitions, each of which is set as a small module. In any of the fourth layers (1041), two adjacent small modules along the length direction are divided into a second type of module.

5. The modular partitioning method according to claim 4, characterized in that, When the first ring-shaped large module (104), the second ring-shaped large module (105), the third ring-shaped large module (106), and the fourth ring-shaped large module (107) of the cargo hold area (12) are divided into the small modules, the outer plate of the cargo hold is used as the frame plate, so that the frame formed by the inner bottom ribbed longitudinal girder or the frame formed by the longitudinal wall ribbed longitudinal girder can be flipped 180 degrees and fastened to the side outer plate. The small modules of the upper fourth layer (1041) are pre-installed with support block boxes, and the small modules of the lower fourth layer (1041) are pre-installed with embedded box seats.

6. The modular partitioning method according to claim 1, characterized in that, The functional areas (10) include a head area (13), which is divided into two second large modules, namely a lower large module (108) and an upper large module (109). In the length direction, with the bulkhead of the hull (1) as a reference, the lower large module (108) is divided into three fifth sections; in the height direction, with the deck or platform of the hull (1) as a reference, the fifth section near the bow of the hull (1) is divided into two fifth layers (1081), and each fifth layer (1081) is divided into a fifth sub-section to obtain two fifth zones; in the height direction, with the deck or platform of the hull (1) as a reference, the other two fifth sections are divided into three fifth layers (1081); in the width direction, with the bulkhead of the hull (1) as a reference, any fifth layer (1081) is divided into two fifth sub-sections to obtain twelve fifth zones; each fifth zone is set as a small module; In the height direction, with the deck or platform of the hull (1) as a reference, the upper large module (109) is divided into two sixth layers (1091). In the width direction, with the bulkhead of the hull (1) as a reference, each of the sixth layers (1091) is divided into two sixth segments to obtain twelve sixth sections, each of the sixth sections being set as a small module. In the lower large module (108), the lower fifth layer (1081) of the other two fifth segments each includes two small modules, which are divided into one second type module; the other small modules are each divided into one second type module. In any of the sixth layer (1091), two adjacent small modules along the length direction are divided into a second type of module.

7. The modular partitioning method according to claim 6, characterized in that, In the lower large module (108), there are two second medium modules divided by the two small modules. One of the second medium modules adopts a normal total group, and the other second medium module adopts a left and right total group.

8. The modular partitioning method according to claim 1, characterized in that, Several of the functional areas (10) include a heavy lifting area (15), which is divided into a second large module, the second large module being a heavy lifting large module (110). In the height direction, with the deck or platform of the hull (1) as a reference, the heavy lifting module (110) is divided into two seventh layers (1101), and any seventh layer (1101) is divided into a seventh segment to obtain two seventh partitions, each of which is set as a small module. The two smaller modules of the heavy lifting module (110) are divided into a second type of module.

9. The modular partitioning method according to claim 8, characterized in that, The deck or platform of the hull (1) includes the outer plate mating surface of the lifting column. The two small modules of the heavy lifting module (110) have the same mating bevel orientation on the outer plate mating surface, so that when the two small modules are divided into the second type of module, they can complete single-sided welding and double-sided forming on the outer plate mating surface without flipping the two small modules.

10. The modular partitioning method according to claim 1, characterized in that, Several of the functional areas (10) include an upper building area (14), which is divided into a second large module, the second large module being an upper building module (111). In the height direction, with the deck or platform of the hull (1) as a reference, the superstructure module (111) is divided into five eighth layers (1111). In the width direction, any eighth layer (1111) is divided into two eighth segments to obtain ten eighth partitions, each of which is set as a small module. Any of the eighth layers (1111) includes two of the smaller modules, which are divided into a second type of module.

11. The modular partitioning method according to claim 10, characterized in that, Standardized connectors are pre-installed on the mating surface of any of the sub-modules in the eighth layer (1111), and the standardized connectors include one or more combinations of the following: bolt holes, locating pin holes, and flange interfaces.

12. The modular partitioning method according to claim 1, characterized in that, Several of the functional areas (10) include a chimney area (16), which is divided into a second large module, the second large module being a chimney large module (112). In the height direction, with the deck or platform of the hull (1) as a reference, the large smokestack module (112) is divided into two ninth layers (1121), and any one of the ninth layers (1121) is divided into a ninth segment to obtain two ninth partitions, each of the ninth partitions being set as a small module. The two smaller modules of the large chimney module (112) are divided into a second type of module.

13. The modular partitioning method according to claim 12, characterized in that, The upper ninth layer (1121) has a louver installation interface on its small module, and the lower ninth layer (1121) has a ventilation duct interface on its small module. The louver installation interface and the ventilation duct interface are coaxial.

14. The modular partitioning method according to claim 1, characterized in that, The height of the first module and the height of the second module are both less than or equal to the maximum support height of the gantry, and the width or length of the first module and the width or length of the second module are both less than or equal to the span range of the gantry, so that when the multiple small modules are divided into the first module or the second module, normal construction or inverse construction can be achieved.

15. The modular partitioning method according to claim 1, characterized in that, The weight of the first module and the weight of the second module are both less than or equal to the carrying capacity of the transport vehicle, and the lifting point positions of the first module and the second module coincide with the positions of the deck, platform or bulkhead reinforcement structure of the hull (1).

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