Design and installation method for internal accessories of ship segmented structure

Abstract

The invention relates to a design and installation method for internal accessories of a ship segmented structure, which is characterized in that accessory holes are additionally formed in a segmented plate numerical control cutting stage, so that the problem of subsequent manual on-site hole opening in a complex narrow area is avoided, the operation is more convenient, the efficiency is higher, and meanwhile, the labor cost is saved. And plane installation of the basic accessories is carried out in the small assembly stage of the segmented structure, plane installation is more convenient, and efficiency is higher. The assembly accessories are alternately installed in the assembly stage in the segmented structure, the corresponding assembly accessories can be installed as long as a certain part of structure meets the accessory installation condition without waiting for complete forming of all the segmented structures, procedure connection is tight, related procedure personnel are prevented from being idle, and the construction period is shortened. In addition, compared with the mode that assembly accessories are installed after segmental construction is completed, high-altitude operation is changed into ground operation from penetrating installation in the assembling process in the segmental structure, and operation is more convenient and safer.

Description

Technical Field

[0001] This invention relates to the technical field of shipbuilding, and in particular to a method for designing and installing internal accessories of a ship section structure. Background Technology

[0002] In the original production design process, after the completion of Phase C of the ship section, the workers would need to carry out engineering work on the internal electrical, mechanical, and ship fittings of the hull, referring to the requirements of Phase B, within an outdoor canopy, based on the production design drawings. This included drilling holes in the section structure on-site and installing cable run-through rings, cable flat bars, two-pole switch sockets, fire alarm watertight smoke detectors, pipe supports, perforated steel plate platforms, cable supports, rectangular ducts, and cables. Welding would only proceed after all internal components of the section were installed and each installation met the precision requirements, ultimately completing the technological solution for the integrity of the ship section construction.

[0003] However, the original production process was unreasonable. After the completion of the C-stage group, the components were moved onto the gantry and carried out in the outdoor canopy. This meant that various processes, such as marking internal parts according to drawings, pulling energy equipment, drilling, installation, welding, and secondary treatment of oxide slag, could only be carried out at height in a complex and confined area. This resulted in greater construction difficulty, extended production and construction cycles, and higher production and operating costs for the company. Summary of the Invention

[0004] To at least partially solve the aforementioned problems existing in the prior art, the purpose of this invention is to provide a method for designing and installing internal accessories of a ship section structure.

[0005] A method for designing and installing internal accessories of a ship section structure, the method comprising:

[0006] Additional attachment openings are added during the CNC cutting stage of segmented sheet metal;

[0007] During the assembly phase of the segmented structure, the basic accessories are installed on a flat surface.

[0008] Assembly accessories are installed intermittently during the assembly phase of the segmented structure;

[0009] During the large-scale assembly phase of the segmented structure, the segmented structure is joined in a normal manner to complete the construction of the ship's segmented structure.

[0010] Optionally, if the segmented plate includes a T-row web, a platform plate, and longitudinal wall plates, then an accessory opening is added during the CNC cutting stage of the segmented plate, including:

[0011] Square and round cable through holes are made on the web plate of the T-row, round cable through holes are made on the platform plate, and square cable through holes are made on the longitudinal wall plate.

[0012] Optionally, the segmented structure assembly is a box-type structure assembly, the box-type structure including a base plate and two longitudinal wall plates, and the basic accessories including flat steel cables, fire alarm watertight smoke detectors, and two-pole sockets with switches, then the basic accessories are installed in planar configuration during the segmented structure assembly stage, including:

[0013] After reinforcing the powder coating line of the base plate is installed, the flat cable and the fire alarm watertight smoke detector are installed on the upper surface of the base plate, and the flat cable and the two-pole switch socket are installed on the upper surface of the two longitudinal wall plates.

[0014] Optionally, the assembly accessories include a corrugated steel plate platform, piping system, cable, and rectangular duct. Before installing the corrugated steel plate platform, the corrugated steel plate platform and the steel plate support need to be assembled in advance. Before installing the piping system, the piping system and the piping system support need to be assembled in advance. Before installing the rectangular duct, the rectangular duct and the duct support need to be assembled in advance. Before installing the cable, the cable support is installed independently.

[0015] Optionally, when installing the corrugated steel plate platform and the steel plate support, the height and front-back position lines of the corrugated steel plate platform need to be marked in the installation area; when installing the pipe system and pipe system support, the height and front-back position lines of the pipe system support need to be marked in the installation area; when installing the cable support, the height and front-back position lines of the cable support need to be marked in the installation area; and when installing the rectangular air duct and air duct support, the height and front-back position lines of the rectangular air duct need to be marked in the installation area.

[0016] Optionally, the cable installation process is performed after the installation process of the corrugated steel plate platform, the piping system, and the rectangular air duct.

[0017] Optionally, protective measures are provided at the location of the cable break.

[0018] Optionally, after the longitudinal wall panels assembled in the segmented structure are installed, auxiliary reinforcing members are provided between the longitudinal wall panels.

[0019] In a method for designing and installing internal accessories of a ship section structure according to the present invention, by adding accessory openings during the CNC cutting stage of the section plates, the problem of manual on-site opening in complex and confined areas can be avoided, making the operation more convenient, more efficient, and saving labor costs. Installing basic accessories in a planar manner during the section structure assembly stage is more convenient and efficient than installing them on a three-dimensional surface after section construction is completed. Installing assembly accessories interspersed during the section structure assembly stage does not require waiting for all sections to be fully formed; as long as a certain part of the structure meets the accessory installation conditions, the corresponding assembly accessories can be installed. This ensures tight process coordination, avoids idle personnel in related processes, and shortens the construction period. Furthermore, compared to installing assembly accessories after section construction is completed, interspersed installation during the section structure assembly process transforms high-altitude work into ground-based work, making the operation more convenient and safer. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the accessory opening on the segmented plate according to an embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of the basic attachment of a segmented structure group according to an embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of the assembly attachment assembled in a segmented structure according to an embodiment of the present invention;

[0023] Figure 4 This is a schematic diagram of the overall structure of a segmented assembly according to an embodiment of the present invention. Detailed Implementation

[0024] The following reference Figures 1 to 4 This invention describes a method for designing and installing a ship section structure.

[0025] This invention provides a method for designing and installing a ship section structure, the method comprising:

[0026] Adding accessory openings during the CNC cutting stage of segmented sheet metal. This means that during the CNC cutting of segmented sheet metal, relevant accessory openings are made on the segmented sheet metal using a CNC machine tool. This avoids the problem of manually opening holes on-site in complex and confined areas later, making the operation more convenient, more efficient, and saving labor costs.

[0027] Further, refer to Figure 1 The segmented plate includes a T-row web plate 1, a platform plate 2, and a longitudinal wall plate 3. A square or round cable penetration hole 11 is made on the T-row web plate 1, a round cable penetration hole 21 is made on the platform plate 2, and a square cable penetration hole 31 is made on the longitudinal wall plate 3.

[0028] Furthermore, after making accessory openings in the segmented plates, relevant cable through-rings 12 are installed in the accessory openings to protect the cables from wear.

[0029] Optionally, the tolerance of the opening in the accessory is ±0.2mm.

[0030] The basic accessories are installed in a planar manner during the sectional structure assembly phase. That is, during sectional structure assembly, the sectional panels are placed flat, and the basic accessories are installed on these panels. Welding of the sectional panels is then performed after the basic accessories are installed. Compared to the previous method of installing basic accessories on a three-dimensional surface after sectional construction, planar installation is more convenient and efficient.

[0031] Further, refer to Figure 2 Taking the assembly of a box-type structure as an example, the basic accessories include flat cable steel 43, a watertight smoke detector 44 for fire alarms, and a two-pole socket with switch 45. The box structure can be disassembled into a base plate 41 and two longitudinal wall plates 3. After installing the reinforcing ribs on the powder-coated line of the base plate 41, the workers install the flat cable steel 43 and the watertight smoke detector 44 on the upper surface of the base plate 41 according to the construction drawings, and install the flat cable steel 43 and the two-pole socket with switch 45 on the upper surface of the two longitudinal wall plates 3. Next, the workers hoist the base plate 41 and the longitudinal wall plates 3 on the platform according to the box structure assembly process and perform welding operations to complete the fabrication of the box structure.

[0032] Optionally, the assembly error of the segmented structure group during the assembly stage is ±0.2mm, and the installation error of the basic accessories is ±2mm.

[0033] Assembly and accessory installation is interspersed during the assembly phase of the segmented structure. In other words, electrical, mechanical, and marine assembly and accessory installations are carried out concurrently with the assembly of the segmented structure. This eliminates the need to wait for all segmented structures to be fully formed; as soon as a section meets the installation requirements, the corresponding assembly and accessory can be installed. This ensures seamless workflow, avoids idle personnel in related processes, and shortens the construction period. Furthermore, compared to installing assemblies and accessories after each segment is completed, this interspersed installation during the assembly of the segmented structure transforms high-altitude work into ground-based work, making operations more convenient and safer.

[0034] Further, refer to Figure 3The assembly accessories include a perforated steel plate platform 51, piping system 52, cable 53, and rectangular duct 54. Before installing the perforated steel plate platform 51, it needs to be pre-assembled with the steel plate support 511. Before installing the piping system 52, it needs to be pre-assembled with the piping support 521. Before installing the rectangular duct 54, it needs to be pre-assembled with the duct support 541. Pre-assembly improves the installation efficiency of these accessories. Similar to the perforated steel plate platform 51, piping system 52, and rectangular duct 54, the cable support 531 is installed independently before the cable 53 is installed; pre-assembly of the cable 53 and cable support 531 is unnecessary.

[0035] Further, refer to Figure 3 After the longitudinal wall panels 3 assembled in the segmented structure are installed, auxiliary reinforcing members 55 can be set between the longitudinal wall panels 3 to control the spacing accuracy of the rib frame. The auxiliary reinforcing members 55 can be reinforcing ribs, reinforcing rods, or reinforcing plates.

[0036] Furthermore, to ensure more precise installation of the corrugated steel platform 51, piping system 52, cable 53, and rectangular duct 54, pre-installation marking is necessary. Specifically, when installing the corrugated steel platform 51 and steel plate support 511, workers must mark the elevation and rear-rear positions of the corrugated steel platform 51 in the installation area according to the construction drawings. Similarly, when installing the piping system 52 and piping support 521, workers must mark the elevation and rear-rear positions of the piping support 521 in the installation area according to the construction drawings. Likewise, when installing the cable support 531, workers must mark the elevation and rear-rear positions of the cable support 531 in the installation area according to the construction drawings. Finally, when installing the rectangular duct 54 and duct support 541, workers must mark the elevation and rear-rear positions of the rectangular duct 54 in the installation area according to the construction drawings. The positions of the corrugated steel plate platform 51 and the rectangular air duct 54 are designed to correspond to the positions of the supports. Therefore, when surveying and marking the positioning lines, the corrugated steel plate platform 51 and the rectangular air duct 54 are used as reference lines for marking, and then the corresponding supports are positioned and installed. The installation area here refers to the longitudinal wall panel 3.

[0037] Furthermore, the installation process of cable 53 is located after the installation process of corrugated steel plate platform 51, pipe system 52 and rectangular air duct 54, so as to avoid damage to cable 53 during the installation of corrugated steel plate platform 51, pipe system 52 or rectangular air duct 54.

[0038] Furthermore, protective measures are implemented at the break point of cable 53 to protect it. The break point of cable 53 typically refers to the closure boundary of the assembled segment structure. The protective measure can be a flexible protective sleeve. By protecting the break point of cable 53 during the subsequent closure phase of the large-scale assembly of the segment structure, damage to cable 53 can be reduced.

[0039] Furthermore, when installing the piping system 52 or the rectangular duct 54, it is necessary to connect the interfaces between the piping systems 52 or the rectangular ducts 54 within the segmented structure.

[0040] Optionally, the assembly error during the assembly stage of the segmented structure is ±3mm, the center point error of the connection between the pipe system 52 and the rectangular air duct 54 is 0-2mm, the installation error of the cable bracket 531 is ±4mm, and the installation error of the corrugated steel plate platform 51 is ±5mm.

[0041] During the large-scale assembly phase of the segmented structure, the segmented structure is joined in a normal manner to complete the construction of the ship's segmented structure.

[0042] Further, refer to Figure 4 Based on the 3D diagram of the segmented structure, the segmented structure is divided into an upper platform 61 and a lower platform 62. The mating surfaces of the upper platform 61 and the lower platform 62 are used as the base surface of the rigid frame, and reverse construction is carried out on the rigid frame. During the final assembly stage of the segmented structure, the upper platform 61 and the lower platform 62 are joined together in a normal manner.

[0043] Furthermore, during the normal assembly of the segmented structure in the large-scale assembly stage, the lower platform 62 must first be hoisted onto the screw adjustment fixture 63. Workers then use a total station to measure the levelness of the lower platform 62's flat surface. The screw adjustment fixture 63 is adjusted until the levelness of the flat surface meets the accuracy requirements before welding and fixing. Next, the upper platform 61 is hoisted onto the flat surface of the lower platform 62. A total station is used to continuously measure the height and levelness of the upper platform 61, as well as the verticality of the longitudinal wall plates of the upper platform 61 and lower platform 62. Welding is then performed after the accuracy requirements are met. Finally, workers connect the piping system 52, rectangular air ducts 54, and cables 53 of the upper platform 61 and lower platform 62, thus realizing the design and installation of the ship's segmented structure.

[0044] Furthermore, during the normal closure of the segmented structure in the large assembly stage, manual inspection can be used for some areas that are inconvenient to measure with a total station.

[0045] Optionally, the closure error during the assembly stage of the segmented structure is ±5mm, and the center point error of the connection between the pipe system 52 and the rectangular air duct 54 is 0-2mm.

[0046] In summary, by adding attachment openings during the CNC cutting stage of segmented panels, the problem of manual on-site opening in complex and confined areas can be avoided, making the operation more convenient, efficient, and saving labor costs. Installing basic attachments on a flat surface during the segmented structure assembly stage is more convenient and efficient than installing them on a three-dimensional surface after segmented construction. Installing assembly attachments interspersed during the segmented structure assembly stage eliminates the need to wait for all segments to be fully formed; as soon as a part of the structure meets the attachment installation requirements, the corresponding assembly attachments can be installed. This ensures tight workflow, avoids idle personnel in related processes, and shortens the construction period. Furthermore, compared to installing assembly attachments after segmented construction, interspersed installation during the segmented structure assembly process transforms high-altitude work into ground-based work, making the operation more convenient and safer.

[0047] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A method for designing and installing internal accessories of a ship section structure, characterized in that, The design and installation method includes: Additional attachment openings are added during the CNC cutting stage of segmented sheet metal; During the assembly phase of the segmented structure, the basic accessories are installed on a flat surface. Assembly accessories are installed intermittently during the assembly phase of the segmented structure; During the large-scale assembly phase of the segmented structure, the segmented structure is joined in a normal manner to complete the construction of the ship's segmented structure.

2. The method for designing and installing internal accessories of a ship section structure according to claim 1, characterized in that, The segmented sheet metal includes T-row web plates, platform plates, and longitudinal wall plates. During the CNC cutting stage of the segmented sheet metal, additional attachment openings are provided, including: Square and round cable through holes are made on the web plate of the T row, round cable through holes are made on the platform plate, and square cable through holes are made on the longitudinal wall plate.

3. The method for designing and installing internal accessories of a ship section structure according to claim 1, characterized in that, The segmented structure assembly is a box-type structure assembly. The box structure includes a base plate and two longitudinal wall plates. The basic accessories include flat steel cables, fire alarm watertight smoke detectors, and two-pole sockets with switches. The basic accessories are then installed in planar configuration during the segmented structure assembly stage, including: After reinforcing the powder coating line of the base plate is installed, the flat cable and the fire alarm watertight smoke detector are installed on the upper surface of the base plate, and the flat cable and the two-pole switch socket are installed on the upper surface of the two longitudinal wall plates.

4. The method for designing and installing internal accessories of a ship section structure according to claim 1, characterized in that, The assembly accessories include a corrugated steel plate platform, piping system, cables, and rectangular ducts. Before installing the corrugated steel plate platform, the corrugated steel plate platform and steel plate support need to be assembled in advance. Before installing the piping system, the piping system and pipe support need to be assembled in advance. Before installing the rectangular ducts, the rectangular ducts and duct supports need to be assembled in advance. Before installing the cables, the cable supports are installed independently.

5. The method for designing and installing internal accessories of a ship section structure according to claim 4, characterized in that, When installing the corrugated steel plate platform and the steel plate support, the height and front-back position lines of the corrugated steel plate platform need to be marked in the installation area. When installing the pipe system and pipe system support, the height and front-back position lines of the pipe system support need to be marked in the installation area. When installing the cable support, the height and front-back position lines of the cable support need to be marked in the installation area. When installing the rectangular air duct and air duct support, the height and front-back position lines of the rectangular air duct need to be marked in the installation area.

6. The method for designing and installing internal accessories of a ship section structure according to claim 4, characterized in that, The cable installation process follows the installation processes of the corrugated steel plate platform, the piping system, and the rectangular duct.

7. The method for designing and installing internal accessories of a ship section structure according to claim 4, characterized in that, Protective measures are provided at the location of the cable break.

8. The method for designing and installing internal accessories of a ship section structure according to claim 1, characterized in that, After the longitudinal wall panels assembled in the segmented structure are installed, auxiliary reinforcing members are installed between the longitudinal wall panels.

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