Modular division method for constructing heavy lift vessel

Abstract

The invention relates to the technical field of ship design and construction, and discloses a modular division method for constructing a heavy lift ship, which comprises the following steps of: S1, dividing a ship body of the heavy lift ship into a plurality of functional areas according to functional attributes; s2, whether the weight of the functional area exceeds the maximum load of the hoisting equipment or not is checked; s3, if the load does not exceed the maximum load of the hoisting equipment, setting the functional area as a first large module; s4, if the load exceeds the maximum load of the hoisting equipment, the functional area is divided into a plurality of sub-areas, and each sub-area is set as a second large module; s5, dividing each first large module and each second large module into a plurality of small modules, and enabling each small module to be matched with the corresponding processing workshop; and S6, the adjacent small modules in the first large module are divided into first middle modules, the adjacent small modules in the second large module are divided into second middle modules, and the size of each middle module is matched with the spraying machining range of the coating site.

Description

Technical Field

[0001] The present invention relates to the technical field of ship design and construction, and in particular to a modular division method for building a heavy lift vessel. Background Art

[0002] In the field of shipbuilding, block construction is the mainstream process currently used by shipyards. This method involves disassembling the hull into several sections, manufacturing them step by step, and then completing the overall assembly through assembly. However, this traditional model is highly dependent on the shipyard's hardware conditions. Specifically, the design and division of the sections are strictly subject to the maximum lifting capacity of the lifting equipment, the load capacity and size restrictions of the transportation vehicles, the space capacity of the block manufacturing site, and the operating range of the rust removal and painting room.

[0003] The above-mentioned hardware limitations directly lead to a strict compression of the total tonnage and size of traditional sections. For example, the weight and size of a single section of a medium-sized seagoing vessel (with an empty ship weight of 10,000 tons) are difficult to break through the equipment bottleneck. This limitation further makes it difficult to achieve complete assembly in the pre-outfitting process due to the small size of the sections. A large number of outfitting parts need to be left for installation during the dock assembly phase, which not only increases the risk of high-altitude operations 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 times during the assembly phase, and the number of hull seams has increased sharply, which not only increases the difficulty of precision control, but also increases the amount of welding work and quality risks.

[0004] Therefore, how to improve the efficiency of pre-outfitting and the quality of welding operations has become a technical problem that needs to be solved urgently. Summary of the Invention

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

[0006] In order to solve the above technical problems, the present invention provides a modular division method for building a heavy lift ship, including: S1, dividing the hull of the heavy lift ship into several 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 of the functional area does not exceed the maximum load of the lifting equipment, setting the functional area as the first large module; S4, if the weight of the functional area exceeds the maximum load of the lifting equipment, 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, each first large module and each second large module is divided into multiple small modules, so that each small module is adapted to the corresponding processing workshop; S6, adjacent small modules belonging to the first large module are divided into first medium modules, and adjacent small modules belonging to the second large module are divided into second medium modules, and the size of each first medium module and the size of each second medium module are adapted to the spray processing range of the coating site.

[0007] In one embodiment, the several functional areas include the tail and cabin areas, which are divided into three second-large modules, namely the lower cabin large module, the upper cabin large module and the tail large module; in the length direction, based on the bulkhead of the hull, the lower cabin large module is divided into a tail shaft section and a cabin bottom section, and the tail shaft section is divided into a small module; in the height direction, based on the deck or platform of the hull, the cabin bottom section is divided into two first layers, the upper first layer is divided into two first sections in both the length and width directions to obtain four first partitions, the lower first layer is divided into two first sections in both the length direction to obtain two first partitions, and each first partition is set as a small module; in the height direction, based on the deck or platform of the hull, the upper cabin large module is divided into three second layers, each second layer is divided into two second sections in both the length and width directions to obtain twelve second partitions, and each second partition is set as a small module; in the height direction, with the deck or platform of the hull as the benchmark, the tail large module is divided into three third layers; in the width direction, with the bulkhead of the hull as the benchmark, the third layers of the upper and middle parts are divided into two third sections, and the third layer of the lower part is divided into three third sections, so as to obtain seven third partitions, each of which is set as a small module; a small module divided by the tail shaft section is divided into a second middle module; the first layer located at the lower part includes two small modules, and the two small modules are divided into a middle module; the first layer located at the upper part includes four small modules, and two small modules adjacent in the length direction are divided into a middle module; any second layer includes four small modules, and two small modules adjacent in the length direction are divided into a middle module; any third layer located at the upper and middle parts includes two small modules, and the two small modules are divided into a middle module; the third layer located at the lower part includes three small modules, and the three small modules 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 pipe outfitting pre-installation unit, and the deviation distance between the interface of the reverse jacking pipe outfitting pre-installation 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, the plurality of functional areas include a cargo hold area, which is divided into four second-large modules, namely, a first ring segment large module, a second ring segment large module, a third ring segment large module, and a fourth ring segment large module. The first ring segment large module, the second ring segment large module, the third ring segment large module, and the fourth ring segment large module are arranged from the bow close to the hull to the stern close to the hull; in the height direction, the fourth ring segment large module is divided into two fourth layers, and the upper fourth layer is divided into two fourth sections in both the length and width directions. The two fourth sections in the upper fourth layer close to the stern of the hull are Each fourth layer is divided into two sub-segments in the height direction to obtain six fourth partitions. The lower fourth layer is divided into two fourth segments in the length and width directions to obtain four fourth partitions, and each fourth partition is set as 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. The two fourth layers are divided into two fourth segments in the length and width directions to obtain eight fourth partitions, and each fourth partition is set as a small module. In any fourth layer, two small modules adjacent along the length direction are divided into a middle module.

[0010] In one embodiment, when the first ring segment large module, the second ring segment large module, the third ring segment large module and the fourth ring segment large module of the cargo hold area are divided into small modules, the outer plate of the cargo hold is used as the tire 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 turned over 180 degrees and buckled to the side outer plate, and the small modules of the upper fourth layer are pre-installed with support block boxes, and the small modules of the lower fourth layer are pre-installed with embedded box seats.

[0011] In one embodiment, the plurality of 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, the lower large module is divided into three fifth sections based on the bulkhead of the hull; in the height direction, the fifth section close to the bow of the hull is divided into two fifth layers based on the deck or platform of the hull, and each fifth layer is divided into a fifth sub-segment to obtain two fifth partitions; in the height direction, the other two fifth sections are divided into three fifth layers based on the deck or platform of the hull; in the width direction, any fifth layer is divided into Two fifth sub-segments are formed to obtain twelve fifth partitions; each fifth partition is set as a small module; in the height direction, based on the deck or platform of the hull, the upper large module is divided into two sixth layers, and in the width direction, based on the bulkhead of the hull, each sixth layer is divided into two sixth segments to obtain twelve sixth partitions, and each sixth partition is set as a small module; in the lower large module, the lower fifth layers of the other two fifth segments each include two small modules, and the two small modules are divided into a middle module; for the other small modules, each small module is divided into a middle module; in any sixth layer, two small modules adjacent along the length direction are divided into a middle module.

[0012] In one embodiment, in the lower large module, there are two middle modules divided by two small modules, one of which adopts the normal total group and the other adopts the left and right total group.

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

[0014] In one embodiment, the deck or platform of the hull includes the outer plate joint surface of the lifting column, and the joint grooves of the two small modules of the heavy-lifting large module at the outer plate joint surface are oriented in the same direction, so that when the two small modules are divided into medium modules, single-sided welding and double-sided forming can be completed at the outer plate joint surface without flipping the two small modules.

[0015] In one embodiment, several functional areas include an upper construction area, which is divided into a second-largest module, which is the upper construction large module; in the height direction, based on the deck or platform of the hull, the upper construction large module is divided into five eighth layers, and in the width direction, any eighth layer is divided into two eighth sections to obtain ten eighth partitions, each of which is set as a small module; any eighth layer includes two small modules, and the two small modules are divided into a medium module.

[0016] In one embodiment, standardized connectors are preset on the docking surface of any small module in the eighth layer, and the standardized connectors include one or more combinations of the following: bolt holes, locating pin holes, and flange interfaces.

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

[0018] In one embodiment, a louver installation interface is provided on the small module of the ninth layer on the upper part, and a ventilation duct interface is provided on the small module of the ninth layer on the lower part. The louver installation interface and the ventilation duct interface are coaxial.

[0019] In one embodiment, the height of any middle module is less than or equal to the maximum support height of the gantry, and the width or length of any middle module is less than or equal to the span range of the gantry, so that when multiple small modules are divided into middle modules, normal construction or reverse 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 position of the lifting point of the divided module coincides with the position of the reinforced structure of the deck, platform or bulkhead of the hull.

[0021] Compared with the prior art, the modular division method for building a heavy lift vessel according to the embodiment of the present invention has the following beneficial effects:

[0022] Compared with the logic of "passive adaptation to hardware limitations" of the traditional segmented construction method, the division steps of the present invention are more proactive and systematic: the traditional method directly cuts segments according to the hardware upper limit, resulting in fragmented segments and functional fragmentation, while the present invention first divides the area according to functional attributes, and then dynamically determines the first or second largest module based on the load of the lifting equipment, which not only breaks through the tonnage limitation of traditional segmentation, but also improves the pre-outfitting efficiency through functional integrity. The subsequent steps of subdividing small modules based on structures such as decks to adapt to processing workshops and integrating them into medium modules to adapt to painting sites are more targeted solutions to the problems of low site utilization and frequent dock cross-operations caused by size confusion in traditional segmentation. After the processing of multiple small modules is completed, there is no need to wait for final assembly. The medium module can enter the pre-outfitting and spraying steps. Finally, through the logic of "function priority, hierarchical adaptation", a fundamental break is achieved in the vicious cycle of "hardware limitations → fragmented segments → cycle out of control" of the traditional method. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a flowchart of a modular division method for building a heavy lift vessel, exemplified by an embodiment of the present invention.

[0024] Figure 2 It is a schematic diagram of the division of functional areas of a modular division method for building a heavy lift vessel, exemplarily shown in an embodiment of the present invention.

[0025] Figure 3 The diagram is a schematic diagram of the division of large modules of a modular division method for building a heavy lift vessel, exemplified by an embodiment of the present invention.

[0026] Figure 4 1 is a partial view A of a small module of a modular division method for building a heavy lift vessel, exemplarily shown in an embodiment of the present invention.

[0027] Figure 5 3. It is a partial view B of a small module of a modular division method for building a heavy lift vessel, exemplarily shown in an embodiment of the present invention.

[0028] Figure 6 3 is a partial view C of a small module of a modular division method for building a heavy lift vessel, exemplarily shown in an embodiment of the present invention.

[0029] Figure 7 FIG. 4 is a partial view D of a small module of a modular division method for building a heavy lift vessel, exemplarily shown in an embodiment of the present invention.

[0030] Figure 8 It is a stern view of a middle module of a modular division method for building a heavy lift vessel, exemplarily shown in an embodiment of the present invention.

[0031] Figure 9It is a bow view of a small module of a modular division method for building a heavy lift vessel, exemplarily shown in an embodiment of the present invention.

[0032] Reference numerals:

[0033] 1. Hull, 10. Functional area, 11. Aft engine room area, 12. Cargo hold area, 13. Bow area, 14. Upper construction area, 15. Heavy lifting area, 16. Chimney area, 101. Lower engine room large module, 1011. Tail shaft section, 1012. Engine room bottom section, 1013. First layer, 102. Upper engine room large module, 1021. Second layer, 103. Aft large module, 1031. Third layer, 104. First Ring section large module, 1041, fourth layer, 105, second ring section large module, 106, third ring section large module, 107, fourth ring section 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, upper building large module, 1111, eighth layer, 112, chimney large module, 1121, ninth layer. DETAILED DESCRIPTION

[0034] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

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

[0036] In the field of shipbuilding, block construction is the mainstream process currently used by shipyards. This method involves disassembling the hull into several sections, manufacturing them step by step, and then completing the overall assembly through assembly. However, this traditional model is highly dependent on the shipyard's hardware conditions. Specifically, the design and division of the sections are strictly subject to the maximum lifting capacity of the lifting equipment, the load capacity and size restrictions of the transportation vehicles, the space capacity of the block manufacturing site, and the operating range of the rust removal and painting room.

[0037] The above-mentioned hardware limitations directly lead to a strict compression of the total tonnage and size of traditional sections. For example, the weight and size of a single section of a medium-sized seagoing vessel (with an empty ship weight of 10,000 tons) are difficult to break through the equipment bottleneck. This limitation further makes it difficult to achieve complete assembly in the pre-outfitting process due to the small size of the sections. A large number of outfitting parts need to be left for installation during the dock assembly phase, which not only increases the risk of high-altitude operations 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 times during the assembly phase, and the number of hull seams has increased sharply, which not only increases the difficulty of precision control, but also increases the amount of welding work and quality risks.

[0038] Based on this, Figure 1 The flowchart shown in Figure 2 and Figure 3 As shown in the schematic diagram, a modular division method for building a heavy lift vessel according to a preferred embodiment of the present invention includes:

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

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

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

[0042] 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 largest module.

[0043] S5. Based on the deck, platform or bulkhead of the hull 1, each first large module and each second large module is divided into a plurality of small modules, so that each small module is adapted to a corresponding processing workshop.

[0044] S6. Divide the adjacent small modules within the first large module into first medium modules, and divide the adjacent small modules within the second large module into second medium modules. The size of each first medium module and the size of each second medium module are both adapted to the spray processing range of the coating site.

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

[0046] First, traditional segmentation is forced to be overly detailed due to hardware constraints. However, this invention utilizes a hierarchical division logic of "functional area 10 → large module → medium module → small module" to maximize the tonnage and size of individual modules while meeting the constraints of lifting equipment, transportation tools, and site conditions. For example, the first and second largest modules can achieve a level of integration far exceeding that of traditional segmentation, reducing the total number of modules and fundamentally reducing the complexity of subsequent assembly operations.

[0047] This integrated design allows the modules to be pre-assembled as a whole before leaving the factory, avoiding the "fragmentation" manufacturing problem caused by traditional segments being too small, and improving construction efficiency.

[0048] Secondly, due to the higher size and functional integrity of large and medium modules, pre-outfitting can complete more comprehensive outfitting installation (such as pipelines, equipment, interior decoration, etc.) at the module stage, greatly reducing the amount of high-altitude work and cross-operation during the dock assembly stage.

[0049] The improvement of pre-outfitting integrity directly reduces the interference of various professional operations in the dock stage, shortens the dock occupancy time, and lays the foundation for the controllability of the construction cycle.

[0050] Combining the first and second aspects, it is not difficult to conclude that in the third aspect, the integration of single modules is improved, which significantly reduces the number of closing lifts. The reduction in the number of closing lifts means a reduction in the number of alignments, thereby reducing the scheduling pressure of lifting equipment and the risk of lifting operations.

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

[0052] Fourthly, the design of the small module adaptation processing workshop ensures that each processing link can be carried out in parallel, avoiding the problem of idle site or process waiting caused by size mismatch in traditional segmentation.

[0053] The design of the middle module adapts to the spraying range of the painting site, so that the painting work can be completed centrally at the module stage, reducing the rework of painting at the dock stage and improving the utilization rate of the site.

[0054] The above optimizations work together to effectively reduce the cross-interference between various disciplines during the dock stage, making the construction cycle of a single ship easier to control and significantly improving the production efficiency of the shipyard.

[0055] The modular division method of the present invention is not a fixed pattern, but through the hierarchical inspection 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 lifting equipment), it can flexibly adapt to the hardware conditions of different shipyards (such as cranes with different lifting capacities and paint rooms of different sizes), thereby improving the universality and practicality of the method.

[0056] In one embodiment, if Figure 4 As shown in the partial view A, several functional areas 10 include the tail and cabin areas, which are divided into three second large modules, namely the lower cabin large module 101, the upper cabin large module 102 and the tail large module 103.

[0057] When dividing small modules, such as Figure 4 As shown, "×1" in the figure indicates one small module in the width direction, "×2" in the figure indicates two small modules in the width direction, and "×3" in the figure indicates three small modules in the width direction. In the length direction, based on the bulkhead of the hull 1, the lower cabin large module 101 is divided into a tail shaft section 1011 and a cabin bottom section 1012. The tail shaft section 1011 is divided into a small module. In the height direction, based on the deck or platform of the hull 1, the cabin bottom section 1012 is divided into two first layers 1013. The upper first layer 1013 is divided into two first sections in both the length and width directions to obtain four first partitions. The lower first layer 1013 is divided into two first sections in both the length direction to obtain two first partitions. Each first partition is set as a small module. In the height direction, based on the deck or platform of the hull 1 as the reference, the upper engine room large module 102 is divided into three second layers 1021. Each second layer 1021 is divided into two second sections in both the length and width directions, resulting in twelve second sub-areas, each of which is configured as a small module. In the height direction, based on the deck or platform of the hull 1 as the reference, the aft large module 103 is divided into three third layers 1031. In the width direction, based on the bulkhead of the 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 sub-areas, each of which is configured as a small module.

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

[0059] In the above embodiment, the tail and cabin area comprises three large modules, seven small modules and four medium modules.

[0060] The tail shaft segment 1011 is divided in advance as the special-shaped structure at the rear of the lower cabin large module 101. This not only avoids the processing difficulties caused by the mixing of special-shaped structures and conventional areas in traditional segments, but also allows this key component to be precisely manufactured in a dedicated workshop in advance, reducing subsequent assembly errors.

[0061] At the same time, in view of the gradual shape change from the upper part to the lower part, the upper first layer 1013 is additionally divided in the width direction to adapt to the complex contour, and the lower first layer 1013 is only divided along the length direction to simplify the processing flow of the regular structure. This on-demand adjustment subdivision strategy not only ensures the adaptability of small modules to the processing workshop, but also reduces unnecessary cutting, making the module division of the cabin bottom section 1012 more in line with the actual structure of the hull 1, further improving the processing efficiency and assembly accuracy, and also laying the foundation for the efficient implementation of subsequent module integration and pre-outfitting and spraying operations.

[0062] Based on the above embodiment, the middle module of the upper cabin large module 102 can be provided with a reverse-jacking outfitting pre-installation unit, and the deviation distance between the interface of the reverse-jacking outfitting pre-installation 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 module 102 features a pre-installed unit for reverse-jacking outfitting. The interface deviation between this unit and the corresponding middle module of the aft module 103 is less than or equal to 5 mm. This allows for pre-installation of the middle module, reducing the complexity of on-site docking. This strict control of interface deviations, enabled by precise early demarcation, ensures accurate subsequent docking, reduces repair work, mitigates risks such as leakage, and enhances the integrity and quality of pre-outfitting.

[0064] In one embodiment, the 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-segment large module 104, a second-segment large module 105, a third-segment large module 106, and a fourth-segment large module 107. The first-segment large module 104, the second-segment large module 105, the third-segment large module 106, and the fourth-segment large module 107 are arranged from the bow close to the hull 1 to the stern close to the hull 1.

[0065] When dividing small modules, such as Figure 5 and Figure 6 As shown, the "×2" in the figure indicates that there are 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 sections in both the length and width directions. The two fourth sections in the upper fourth layer 1041 near the stern of the hull 1 are each divided into two sub-sections in the height direction, resulting in six fourth partitions. The lower fourth layer 1041 is divided into two fourth sections in both the length and width directions, resulting in four fourth partitions, each of which is configured 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 each divided into two fourth layers 1041. The two fourth layers 1041 are divided into two fourth sections in both the length and width directions, resulting in eight fourth partitions, each of which is configured as a small module.

[0066] When dividing the modules, Figure 8 and Figure 9 As shown in the figure, "×1" indicates that there is one medium module in the width direction, and "×2" indicates that there are two medium modules in the width direction. In any fourth layer 1041, two small modules adjacent in the length direction are divided into one medium module.

[0067] In the above embodiment, due to the regular overall shape of the cargo hold area 12, most structures are divided similarly. This simplifies the design process, facilitates standardized processing, and improves construction efficiency. Regarding the fourth ring segment module 107, the two fourth segments near the aft portion of the hull 1 in the upper fourth layer 1041 are divided into two sub-segments in the height direction. This design fully considers the connection requirements with the aft and engine room area lower cabin module 101, as well as the layout characteristics of the passageways between the two areas. This ensures precise structural connection between the cargo hold area 12 and the aft and engine room areas, avoiding the problems of excessive assembly gaps or misalignment caused by inadequate connection considerations in traditional segmentation. It also provides a structural foundation for the smooth layout of the inter-area passageways, further improving the overall structural coherence and functionality of the hull 1 and making subsequent assembly operations more efficient and precise.

[0068] In one embodiment, when the first ring segment large module 104, the second ring segment large module 105, the third ring segment large module 106 and the fourth ring segment 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 tire 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 turned over 180 degrees and buckled onto the side outer plate, and 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] The cargo hold outer plating is used as the cradle plate, so that the frame formed by the inner bottom or longitudinal wall ribbed plate and longitudinal girder can be turned over 180 degrees and buckled to the side outer plating. This design not only uses the regular shape of the outer plating as a reference to improve the assembly accuracy of the frame, but also realizes convenient switching between front and back operations by turning over and buckling, reducing the cost and time of cradle construction in traditional segmented construction.

[0070] At the same time, 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, so that the functional components are integrated into the modules in advance, which not only avoids the high-altitude pre-installation operation in the dock stage, but also ensures the adaptability of the components to the hull 1 structure through precise positioning in the module stage, further reduces the adjustment workload during closing, and allows the modular construction of the cargo hold area 12 to form a better synergy in terms of accuracy, efficiency and functionality.

[0071] In one embodiment, the plurality of 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 small modules, such as Figure 7As shown, "×1" in the figure indicates a small module in the width direction, and "×2" in the figure 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 is divided into a fifth sub-segment, resulting in two fifth partitions. 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-segments, resulting in twelve fifth partitions. Each fifth partition is set as a small module. In the height direction, based on the deck or platform of the hull 1, the upper large module 109 is divided into two sixth layers 1091. In the width direction, based on the bulkhead of the hull 1, each sixth layer 1091 is divided into two sixth sections to obtain twelve sixth partitions, and each sixth partition is set as a small module.

[0073] When dividing the modules, Figure 9 As shown, "×1" in the figure indicates one medium module in the width direction, and "×2" in the figure indicates two medium modules in the width direction. In the lower large module 108, the lower fifth layers 1081 of the other two fifth segments each include two small modules, which are divided into one medium module. For the other small modules, each small module is 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 the platform or deck that do not have important equipment bases and have relatively empty structures, module assembly is not planned because multiple combinations are prone to deformation when turned over. This on-demand combination strategy not only avoids unnecessary structural damage, but also reduces ineffective assembly processes, 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, in the lower large module 108 , there are two middle modules divided by two small modules, one of which adopts the normal total group and the other adopts the left-right total group.

[0076] For the two small modules below the ground frame of the equipment compartment, a normal medium module assembly is used to centrally complete the outfitting and painting operations in this area, ensuring complete pre-installation before final assembly, reducing the amount of low-altitude operations during the dock stage, and improving the protective performance of the equipment compartment.

[0077] The two small modules in the middle of the bottom are assembled on the left and right sides as the basic structure of the large module. This can enhance the overall rigidity through combination, provide stable support for the subsequent assembly of the upper module, and reduce the risk of structural shaking during the final assembly stage.

[0078] In one embodiment, the plurality of functional areas 10 include a heavy-lift area 15 , and the heavy-lift area 15 is divided into a second large module, which is a heavy-lift large module 110 .

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

[0080] When dividing the modules, Figure 8 As shown, "×1" in the figure indicates that there is a middle module in the width direction, and the two small modules of the heavy-lift large module 110 are divided into one middle module.

[0081] On this basis, in one embodiment, the deck or platform of the hull 1 includes the outer plate docking surface of the lifting column, and the docking grooves of the two small modules of the heavy-lifting large module 110 at the outer plate docking surface are oriented in the same direction, so that when the two small modules are divided into medium modules, single-sided welding and double-sided forming can be completed at the outer plate docking surface without flipping the two small modules.

[0082] The butt joint surface of the outer plate of the lifting column serves as one of the benchmarks for the deck or platform, and the butt joint grooves of the two small modules are oriented in the same direction. This allows for direct welding during the assembly of the middle module without flipping the small modules, achieving single-sided welding and double-sided forming. This design not only avoids the flipping and adjustment process caused by the confusion of groove orientation in traditional segmentation, reducing the time cost and structural collision risk of module alignment, but also ensures the standardization of welding operations by unifying the groove direction, improving the forming quality and strength stability of the butt weld, and at the same time providing process guarantees for the structural safety of core load-bearing components such as the lifting column, allowing the integration of the middle module of the heavy-lift large module 110 to achieve dual optimization in terms of efficiency and reliability.

[0083] In one embodiment, the plurality of functional areas 10 include an upper construction area 14 , and the upper construction area 14 is divided into a second large module, which is an upper construction large module 111 .

[0084] When dividing small modules, such as Figure 7As shown, the "×2" in the figure indicates two small modules in the width direction. In the height direction, based on the deck or platform of the hull 1, the upper building module 111 is divided into five eighth layers 1111. In the width direction, each eighth layer 1111 is divided into two eighth sections, resulting in ten eighth divisions, each of which is configured as a small module.

[0085] When dividing the modules, Figure 9 As shown in the figure, "×1" indicates that there is one middle module in the width direction. Any eighth layer 1111 includes two small modules, and the two small modules are divided into one middle module.

[0086] The upper construction area 14 is divided into a large upper construction module 111, which is divided into five eighth layers 1111 in the height direction according to the deck or platform benchmark. Each layer is split into two small modules in the width direction, and then the two small modules in the same layer are integrated into a middle module. This design precisely adapts to the characteristics of the upper construction segment being hollow and easy to deform.

[0087] Because the superstructure is relatively empty, smaller modules can be divided and adapted to the pre-outfitting site, facilitating targeted outfitting operations and avoiding the risk of deformation that might result from lumping multiple small modules together. Layered integration into medium modules ensures the structural stability of each medium module while also accommodating the painting site's operating range. This allows for efficient pre-outfitting and painting in superstructure area 14 during modular construction, while reducing the risk of structural deformation and improving overall construction quality and efficiency.

[0088] In one embodiment, standardized connectors are preset on the docking surfaces of any small module 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.

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

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

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

[0092] In one embodiment, a louver installation interface is provided on the small module of the upper ninth layer 1121, and a ventilation duct interface is provided on the small module of the lower ninth layer 1121. The louver installation interface is coaxial with the ventilation duct interface.

[0093] The louver mounting interface of the 1121 small module on the upper ninth layer is coaxial with the ventilation duct interface of the 1121 small module on the lower ninth layer. This design precisely solves the assembly challenges of the 14 ventilation systems in the upper building area. This coaxial arrangement ensures that the louvers and ventilation ducts precisely mate when closed, without any additional adjustment. This avoids the problems of pipe bending and air leakage caused by misaligned interfaces in traditional segmented systems. This improves ventilation system assembly efficiency, ensures smooth airflow, and reduces subsequent maintenance costs.

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

[0095] The height of any central module does not exceed the maximum support height of the gantry, and neither its width nor its length exceeds the gantry span. This design fully adapts to the performance parameters of the construction equipment. As a result, the central modules can be flexibly assembled in either normal or reverse configurations, breaking through the single construction posture limitation caused by equipment limitations in traditional segmented construction. This flexibility not only facilitates the selection of the optimal working posture based on construction requirements, reducing the risks of working at height and turning over, but also improves the utilization rate of equipment such as the gantry, enhancing the overall smoothness of the construction process.

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

[0097] The weight of the mid-module is tailored to the carrying capacity of the transport vehicle, and the location of the lifting point coincides with the reinforced structure of hull 1, demonstrating precise consideration of transportation and lifting safety. This weight adjustment prevents equipment damage or accidents caused by overloading during transportation. The alignment of the lifting point with the reinforced structure distributes lifting stress to the solid parts of hull 1, preventing deformation or damage to the module structure during lifting. This not only ensures the safety of the lifting operation, but also reduces the workload of repairing structural damage, further improving the reliability of modular construction.

[0098] Compared with the prior art, the modular division method for building a heavy lift vessel according to the embodiment of the present invention has the following beneficial effects:

[0099] Compared with the logic of "passive adaptation to hardware limitations" of the traditional segmented construction method, the division steps of the present invention are more proactive and systematic: the traditional method directly cuts segments according to the hardware upper limit, resulting in fragmented segments and functional fragmentation, while the present invention first divides the area according to functional attributes, and then dynamically determines the first or second largest module based on the load of the lifting equipment, which not only breaks through the tonnage limitation of traditional segmentation, but also improves the pre-outfitting efficiency through functional integrity. The subsequent steps of subdividing small modules based on structures such as decks to adapt to processing workshops and integrating them into medium modules to adapt to painting sites are more targeted solutions to the problems of low site utilization and frequent dock cross-operations caused by size confusion in traditional segmentation. After the processing of multiple small modules is completed, there is no need to wait for final assembly. The medium module can enter the pre-outfitting and spraying steps. Finally, through the logic of "function priority, hierarchical adaptation", a fundamental break is achieved in the vicious cycle of "hardware limitations → fragmented segments → cycle out of control" of the traditional method.

[0100] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A modular division method for building a heavy lift vessel, characterized in that: include: S1. Dividing the hull (1) of a heavy lift vessel into a plurality of functional areas (10) according to functional attributes; S2, checking 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, setting the functional area (10) 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 a plurality of 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, and each sub-area is set as a second largest module; S5. Based on the deck, platform or bulkhead of the hull (1), each of the first large modules and each of the second large modules is divided into a plurality of small modules, so that each of the small modules is adapted to a corresponding processing workshop; S6. Divide the adjacent small modules within the first large module into first medium modules, and divide the adjacent small modules within the second large module into second medium modules. The size of each of the first medium modules and the size of each of the second medium modules are both adapted to the spray processing range of the coating site.

2. The modular division method according to claim 1, characterized in that: The functional areas (10) include a tail and a cabin area, wherein the tail and the cabin area are divided into three second large modules, wherein the three second large modules are a lower cabin large module (101), an upper cabin large module (102) and a tail large module (103); In the length direction, based on the bulkhead of the hull (1), the lower cabin large module (101) is divided into a tail shaft section (1011) and a cabin bottom section (1012), and the tail shaft section (1011) is divided into a small module. In the height direction, based on the deck or platform of the hull (1), the cabin bottom section (1012) is divided into two first layers (1013). The upper first layer (1013) is divided into two first sections in both the length direction and the width direction to obtain four first partitions. The lower first layer (1013) is divided into two first sections in both the length direction to obtain two first partitions, and each first partition is set as a small module. In the height direction, based on the deck or platform of the hull (1), the upper cabin large module (102) is divided into three second layers (1021), each of the second layers (1021) is divided into two second sections in the length direction and the width direction to obtain twelve second partitions, each of the second partitions is set as a small module; In the height direction, based on the deck or platform of the hull (1), the tail large module (103) is divided into three third layers (1031); in the width direction, based on the bulkhead of the hull (1), 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, so as to obtain seven third partitions, each of which is set as a small module; A small module divided by the tail shaft segment (1011) is divided into a second middle module; the first layer (1013) located at the lower part includes two small modules, and the two small modules are divided into a middle module; the first layer (1013) located at the upper part includes four small modules, and two small modules adjacent to each other in the length direction are divided into a middle module; Any of the second layers (1021) comprises four small modules, and two adjacent small modules along the length direction are divided into a middle module; Any of the third layers (1031) located in the upper and middle parts includes two small modules, and the two small modules are divided into a middle module; the third layer (1031) located in the lower part includes three small modules, and the three small modules are divided into a middle module.

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

4. The modular division method according to claim 1, characterized in that: The plurality of functional areas (10) include a cargo hold area (12), the cargo hold area (12) being divided into four second large modules, the four second large modules being a first ring segment large module (104), a second ring segment large module (105), a third ring segment large module (106), and a fourth ring segment large module (107), the first ring segment large module (104), the second ring segment large module (105), the third ring segment large module (106), and the fourth ring segment large module (107) being arranged from the bow close to the hull (1) to the stern close to 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 sections in both the length direction and the width direction, the two fourth sections in the upper fourth layer (1041) close to the tail of the hull (1) are divided into two sub-sections in the height direction to obtain six fourth partitions, and the lower fourth layer (1041) is divided into two fourth sections in both the length direction and the width direction to obtain four fourth partitions, each of which 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 each divided into two fourth layers (1041), and the two fourth layers (1041) are each divided into two fourth segments in the length direction and the width direction 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 middle module.

5. The modular division method according to claim 4, characterized in that: When the first ring segment large module (104), the second ring segment large module (105), the third ring segment large module (106) and the fourth ring segment 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 a tire frame plate, so that the frame formed by the inner bottom ribbed plate longitudinal girder or the frame formed by the longitudinal wall ribbed plate longitudinal girder can be turned over 180 degrees and buckled 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 division method according to claim 1, characterized in that: The functional areas (10) include a head area (13), and the head area (13) is divided into two second large modules, the two second large modules are a lower large module (108) and an upper large module (109); In the length direction, based on the bulkhead of the hull (1), the lower large module (108) is divided into three fifth sections; In the height direction, based on the deck or platform of the hull (1), the fifth section close to the bow of the hull (1) is divided into two fifth layers (1081), each of which is divided into a fifth sub-segment to obtain two fifth partitions; in the height direction, based on the deck or platform of the hull (1), the other two fifth sections are divided into three fifth layers (1081); in the width direction, based on the bulkhead of the hull (1), any fifth layer (1081) is divided into two fifth sub-segments to obtain twelve fifth partitions; each fifth partition is set as a small module; In the height direction, based on the deck or platform of the hull (1), the upper large module (109) is divided into two sixth layers (1091); in the width direction, based on the bulkhead of the hull (1), each of the sixth layers (1091) is divided into two sixth sections, so as to obtain twelve sixth partitions, each of which is set as a small module; In the lower large module (108), the lower fifth layers (1081) of the other two fifth segments each include two small modules, and the two small modules are divided into a middle module; and the other small modules are each divided into a middle module; In any of the sixth layers (1091), two adjacent small modules along the length direction are divided into a medium module.

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

8. The modular division method according to claim 1, characterized in that: The plurality of functional areas (10) include a heavy-lift area (15), wherein the heavy-lift area (15) is divided into a second large module, and the second large module is a heavy-lift large module (110); In the height direction, based on the deck or platform of the hull (1), the heavy-lift large module (110) is divided into two seventh layers (1101), and any of the seventh layers (1101) is divided into a seventh segment to obtain two seventh partitions, each of which is set as a small module; The two small modules of the heavy-lift large module (110) are divided into a medium module.

9. The modular division method according to claim 8, characterized in that: The deck or platform of the hull (1) includes a peripheral plate docking surface of a lifting column, and the two small modules of the heavy-lifting large module (110) have docking grooves in the same direction on the peripheral plate docking 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 peripheral plate docking surface without flipping the two small modules.

10. The modular partitioning method according to claim 1, characterized in that: The functional areas (10) include an upper construction area (14), wherein the upper construction area (14) is divided into a second large module, and the second large module is an upper construction large module (111); In the height direction, based on the deck or platform of the hull (1), the upper large module (111) is divided into five eighth layers (1111), and in the width direction, any eighth layer (1111) is divided into two eighth sections to obtain ten eighth partitions, each of which is set as a small module; Any of the eighth layers (1111) includes two of the small modules, and the two small modules are divided into one middle module.

11. The modular partitioning method according to claim 10, characterized in that: Standardized connectors are preset on the docking surfaces of the small modules of any of the eighth layers (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: The functional areas (10) include a chimney area (16), and the chimney area (16) is divided into a second large module, and the second large module is a chimney large module (112); In the height direction, based on the deck or platform of the hull (1), the chimney large module (112) is divided into two ninth layers (1121), and any ninth layer (1121) 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 (112) are divided into a middle module.

13. The modular partitioning method according to claim 12, characterized in that: The small module of the ninth layer (1121) at the upper part is provided with a louver installation interface, and the small module of the ninth layer (1121) at the lower part is provided with a ventilation pipe interface, and the louver installation interface is coaxial with the ventilation pipe interface.

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

15. The modular partitioning method according to claim 1, characterized in that: The weight of any of the middle modules is less than or equal to the carrying capacity of the transport vehicle, and the position of the lifting point for dividing the middle module coincides with the position of the reinforced structure of the deck, platform or bulkhead of the hull (1).

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