Sectional construction method of surrounding type middle deck for constructing breeding work ship

Abstract

The invention discloses a surrounding type middle deck subsection building method for building a breeding work ship, and belongs to the technical field of ship building. The surrounding type middle deck subsection building method comprises the following steps that 1, subsection assembling and dividing are conducted on middle deck subsections; the large-scale middle assembly is divided into a deck large-scale middle assembly, a central channel large-scale middle assembly, a breeding cabin transverse wall assembly, an annular aisle platform assembly and a vertical wall pier assembly. Step 2, carrying out small-sized assemblage division on the deck large-sized middle assemblage and the central channel large-sized middle assemblage; step 3, preparing materials; step 4, manufacturing and transferring a part of assemblage; 5, the deck large-scale middle assemblage and the central channel large-scale middle assemblage are synchronously assembled in different sites, and then the deck large-scale middle assemblage is transferred to a large-scale assembly site to be subjected to large-scale assembly with the central channel large-scale middle assemblage; and step 6, assembling the transverse wall of the breeding cabin, assembling the annular aisle platform and assembling and installing the vertical wall pier. According to the construction method, the construction is orderly divided, the construction difficulty is reduced, and the large-group construction period is shortened.

Description

Technical Field

[0001] The invention belongs to the technical field of ship construction, and in particular relates to a method for constructing an enclosed intermediate deck in sections for building a breeding vessel. Background Art

[0002] The deck of a large-scale aquaculture vessel for smart fisheries is a single-hull structure. The deck layer is generally divided into three sections: left, middle, and right. For the middle deck section, Figure 1 As shown, it includes a deck 01 and a central passage 02. The deck 01 is provided with side ribs 011, midship deck ribs 012, two middle passage longitudinal walls 013 and an air duct 014. The central passage 02 is located below the deck 01. The ramp plate beam 021, the lower platform 022, the middle passage longitudinal walls 013 and the deck 01 on the central passage 02 form a six-sided enclosed structure, wherein the ramp plate upper ribs 023 are provided on the ramp plate beam 021. Inside the central passage 02, a semi-capsule-shaped annular runway pool is also arranged. The annular runway pool includes an annular runway pool arc plate 024, an annular runway pool bottom plate 025, an annular runway pool isolation wall 026 and an annular runway pool end 027. The surrounding wall plate is U-shaped, forming a nested enclosed structure with the deck 01 as a whole. A large number of outfitting, piping and equipment matching the aquaculture system, the catching system, the bilge water system, the cooling system, the aeration system, the seawater desalination system and the like are arranged inside the central passage 2. A double-hulled breeding cabin transverse wall 03 and a vertical wall pier 04 are arranged on the outside of the central channel 2, which are connected to the central channel 02 at an angle. A circular walkway platform 05 is arranged on the outside of the vertical wall of the central channel 02.

[0003] There is currently no reference construction method for the intermediate deck sections of the above-mentioned structural form. Due to its complex structural form, dense structure, and many narrow spaces, its construction is difficult and the construction period is long.

[0004] For the purpose of reducing the construction period, the present application proposes a method for constructing an enclosed intermediate deck segment for building aquaculture vessels, which has a wide range of parallel operations, high construction efficiency and a short construction period. Summary of the invention

[0005] The purpose of the present invention is to overcome the above-mentioned deficiencies of the prior art and to provide a method for constructing an enclosed intermediate deck segment for building aquaculture vessels.

[0006] To achieve the above object, the present invention adopts the following technical solution:

[0007] A method for constructing an enclosed intermediate deck in sections for building a breeding vessel comprises the following steps:

[0008] Step 1, assembling and dividing the middle deck into sections;

[0009] According to the structural characteristics of the middle deck segment, it is divided into large deck middle assembly, large central channel middle assembly, breeding cabin transverse wall assembly, circular walkway platform assembly, and vertical wall pier assembly;

[0010] Step 2, divide the large and medium assemblies of the deck and the large and medium assemblies of the central channel into small assemblies;

[0011] The large-scale middle assembly of the deck is divided into the deck assembly, the middle channel longitudinal wall assembly, the air duct assembly, the side rib assembly, and the mid-ship deck rib assembly;

[0012] The large-scale assembly of the central channel is divided into the ramp plate assembly, the circular runway pool isolation wall assembly, the circular runway pool end assembly, and the lower platform assembly;

[0013] Step 3, material preparation;

[0014] Cut the plates or profiles required for the assembly of each section separately, prepare the tooling required for the assembly of each section, and arrange the parts according to the assembly division and production process of each section and send them to each construction workshop and site;

[0015] Step 4, partial assembly and transportation;

[0016] The horizontal wall assembly of the breeding cabin, the circular walkway platform assembly, the vertical wall pier assembly, the side rib assembly, the midship deck rib assembly, the circular runway pool isolation wall assembly, the circular runway pool end assembly, and the lower platform assembly are manufactured in the joint workshop;

[0017] According to the assembly flow direction, the horizontal wall of the breeding cabin, the circular walkway platform, the vertical wall pier, the circular runway pool isolation wall, the circular runway pool end, and the lower platform are assembled and sent to the large assembly site; the side ribs and the midship deck ribs are assembled and sent to the flat workshop;

[0018] Step 5: The large-scale intermediate assembly of the deck and the large-scale intermediate assembly of the central channel are assembled simultaneously at different sites, and then the large-scale intermediate assembly of the deck is transported to the large-scale assembly site for large-scale assembly with the large-scale intermediate assembly of the central channel;

[0019] Step 6: Assemble the horizontal walls of the breeding cabin, assemble the circular walkway platform, and assemble and install the vertical wall piers.

[0020] Preferably, in step 4, a lower platform frame is provided during assembly of the lower platform, and guide groove plates are provided on the lower platform frame at positions corresponding to the longitudinal walls on both sides of the lower platform assembly to facilitate rapid positioning of the longitudinal wall panels.

[0021] Preferably, in step 4, when the cross wall of the breeding cabin is assembled in the joint factory building, a shape-preserving connecting support is set at the port position to avoid the opening precision deviation, and at the same time, it serves as a reinforcement for the assembly turning over and hoisting.

[0022] Preferably, in step 5, the large-scale assembly manufacturing process of the deck is:

[0023] Each deck plate is laid on the flat paneling station in the plane workshop, and is automatically welded and spliced, with double-sided forming in one welding; the frame and each deck plate are automatically welded, with double-sided fillet welding in one welding to form a deck assembly;

[0024] The middle channel longitudinal wall assembly is made in the plane workshop, and the air duct assembly is made in the joint workshop, and then flows to the plane workshop;

[0025] The deck assembly flows to the rib welding area to carry out the installation of the side rib assembly, the midship deck rib assembly, the middle channel longitudinal wall assembly, and the air duct assembly;

[0026] After production is completed, it will be transported to the large group site.

[0027] Preferably, in step 5, after the deck plates are spliced ​​and welded to form the main board, the plate marking is performed starting from the edge of the main board without any allowance, and the marking content includes the component theoretical line, the inspection line and the network reference line of the middle deck section in the length and width direction of the hull, which is used for the subsequent section production, general assembly and closing alignment reference.

[0028] Preferably, in step 5, the large-scale assembly production of the central channel and the large-scale assembly process with the large-scale assembly of the deck are as follows:

[0029] Step 51, assembling, manufacturing, transporting and outfitting the ramp plate;

[0030] Step 52, the large-scale assembly 2 of the central channel is manufactured, outfitted and turned over.

[0031] Preferably, in step 51, the rib plate assembly on the slope plate, the circular runway pool arc plate assembly, and the circular runway pool bottom plate assembly are completed in the joint workshop, and the circular runway pool arc plate assembly and the circular runway pool bottom plate assembly are assembled to form a circular runway pool arc plate bottom plate assembly, and then the circular runway pool arc plate bottom plate assembly and the rib plate assembly on the slope plate flow to the plane workshop;

[0032] The ramp plate beam assembly is manufactured in the flat workshop, and then flows to the rib plate welding area to install the ramp plate rib plate assembly and the circular runway pool arc plate bottom plate assembly in turn to form a ramp plate assembly, one on each side, for outfitting operations and transported to the large assembly site.

[0033] Preferably, in step 52, at the large assembly site, a special rigid cradle is set according to the lower surface structure of the large central assembly of the central channel, the lower platform assembly is first put on the cradle, and then the port and starboard ramp plate assemblies, the circular runway pool end assembly, and the circular runway pool isolation wall assembly are installed in sequence to form the large central assembly of the central channel, and outfitting operations are carried out. Then, the large central assembly of the central channel is turned over and installed using the large central assembly of the deck as a cradle. When the large central assembly of the central channel is installed, the center lines of the bow and stern hull are vertically aligned with the center line of the main deck hull.

[0034] Preferably, the rigid tire frame is M-shaped.

[0035] Preferably, the rigid step is provided with a guide plate and a limit plate which can quickly position the lower platform assembly.

[0036] The beneficial effects of the present invention are:

[0037] (1) The construction method of the present invention optimizes the segment assembly division according to the structural characteristics of the intermediate deck segments, is guided by providing a complete intermediate product, and arranges the corresponding construction content according to the construction capacity characteristics of each workshop site, which is conducive to the reasonable arrangement of workshop materials, orderly construction, reduced construction difficulty, and shortened large-group construction period.

[0038] (2) The present invention rationally divides the six-sided surrounding structure of the middle channel into upper and lower parts, forming the most important and critical large-scale middle assembly of the deck and the large-scale middle assembly of the central channel in the entire construction process. The two parts are assembled and manufactured simultaneously at different sites, realizing parallel operation, moving the process forward, and shortening the construction period.

[0039] (3) In the present invention, when the large-scale center assembly of the central channel is manufactured, a special rigid tire frame is set according to the lower surface structure of the large-scale center assembly of the central channel. When the lower platform assembly is put on the tire, the lower platform assembly is quickly positioned by the guide plate and the limit plate arranged on the rigid step, so as to effectively control the assembly installation accuracy.

[0040] (4) There are a large number of outfitting parts inside the central channel. In the present invention, during the production of the large central assembly of the central channel, the lower platform assembly is first put on the tire, so that the opening of the large central assembly of the central channel is located at the upper end, which can be interspersed with basin-type outfitting operations. The outfitting is all straight up and down hoisting operations, which is easy to operate and avoids the need to perform outfitting upside down after the assembly is turned over, thereby reducing construction risks and construction difficulties. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The drawings in the specification, which constitute a part of the present application, are used to provide further understanding of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute improper limitations on the present application.

[0042] Figure 1It is a schematic three-dimensional diagram of the structure of the middle deck section;

[0043] Figure 2 It is a schematic diagram of the segmented assembly and division of the middle deck segments in the present invention;

[0044] Figure 3 It is a schematic diagram of the division of large-scale, medium-sized and small-sized assemblies, site arrangement and flow direction of the middle deck of the present invention;

[0045] Figure 4 It is a schematic diagram of the division of large-scale, medium-scale and small-scale assemblies, site arrangement and flow direction of the central channel in the present invention;

[0046] Figure 5 It is a schematic diagram of the site arrangement and flow direction of the large-scale middle assembly of the deck, the large-scale middle assembly of the central channel, the transverse wall assembly of the breeding cabin, the annular walkway platform assembly, and the vertical wall pier assembly of the present invention;

[0047] Figure 6 It is a structural schematic diagram of the rigid tire frame in the present invention;

[0048] Figure 7 It is a structural schematic diagram of the lower platform frame when the lower platform is assembled and constructed in the present invention;

[0049] Figure 8 It is a schematic diagram of setting a shape-preserving connection support at the port position when assembling and manufacturing the transverse wall of the breeding cabin in the present invention;

[0050] Fig. 9 It is a schematic diagram of the assembly and construction of the circular arc plate of the annular runway pool in the present invention;

[0051] Fig.10 It is a schematic diagram of the steel liner plug welding and slow-installation plate of the annular runway pool isolation wall assembly in the present invention;

[0052] Fig.11 It is a schematic diagram of the design of the rib plate pulling hole in the present invention;

[0053] Fig.12 This is a schematic diagram of the assembly and installation positioning of the longitudinal wall of the central channel in the present invention;

[0054] Fig.13 It is a schematic diagram of the large-scale middle assembly outfitting of the middle deck of the present invention.

[0055] Fig.14 It is a schematic diagram of assembling the circular arc plate and the bottom plate of the circular runway pool in the present invention;

[0056] Fig.15 It is a schematic diagram of the large-scale central assembly outfitting of the central channel in the present invention.

[0057] Fig.16It is a schematic diagram of the assembly of the horizontal wall of the breeding cabin, the assembly of the annular walkway platform, and the assembly of the vertical wall pier in the present invention;

[0058] in:

[0059] 01-deck, 011-side ribs, 012-midship deck ribs, 013-middle channel longitudinal wall, 014-wind duct, 02-central channel, 021-slope plate beam, 022-lower platform, 023-slope plate ribs, 024-circular runway pool arc plate, 025-circular runway pool bottom plate, 026-circular runway pool isolation wall, 027-circular runway pool end, 03-breeding cabin transverse wall, 04-vertical wall pier, 05-circular walkway platform;

[0060] 1-deck large middle assembly, 11-deck assembly, 12-middle channel longitudinal wall assembly, 13-air duct assembly, 14-side rib assembly, 15-midship deck rib assembly;

[0061] 2-central channel large medium assembly, 21-slope plate assembly, 211-slope plate beam assembly, 212-slope plate rib assembly, 213-circular runway pool arc plate assembly, 214-circular runway pool bottom plate assembly, 22-circular runway pool isolation wall assembly, 23-circular runway pool end assembly, 24-lower platform assembly;

[0062] 3- assembly of horizontal wall of breeding cabin, 4- assembly of circular walkway platform, 5- assembly of vertical wall pier;

[0063] 6-rigid frame, 61-guide plate, 62-limiting plate, 7-lower platform frame, 71-guide groove plate, 81-shape-maintaining connection support, 82-shape-maintaining tension support, 9-arc plate assembly frame, 101-anti-top outfitting parts, 102-anti-backward support tooling, 103-anti-backward support, 103-pull-in hole, 104-basin-type outfitting operation;

[0064] A-the plug welding position of steel lining plate, B-the slow installation position of column plate. DETAILED DESCRIPTION

[0065] It should be noted that the following detailed descriptions are illustrative and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present application belongs.

[0066] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0067] In the present invention, the directions or positional relationships indicated by terms such as "upper", "lower", "bottom", "top", etc. are based on the directions or positional relationships shown in the accompanying drawings. They are relational words determined only for the convenience of describing the structural relationships of the various parts or elements of the present invention. They do not specifically refer to any part or element in the present invention and cannot be understood as limitations on the present invention.

[0068] In the present invention, terms such as "connected" and "connection" should be understood in a broad sense, indicating that the connection can be fixed, integral or detachable; it can be directly connected or indirectly connected through an intermediate medium. Relevant scientific research or technical personnel in this field can determine the specific meaning of the above terms in the present invention according to specific circumstances, and they should not be understood as limiting the present invention.

[0069] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0070] See attached Figure 2 -Attached Fig.16 A method for constructing an enclosed intermediate deck section for aquaculture workboat comprises the following steps:

[0071] Step 1, assembling and dividing the middle deck into sections;

[0072] According to the structural characteristics of the middle deck section, it is divided into a large middle assembly of the deck 1, a large middle assembly of the central channel 2, a transverse wall assembly of the breeding cabin 3, a circular walkway platform assembly 4, and a vertical wall pier assembly 5.

[0073] The principle of assembly division is to reduce the difficulty of large-scale segmented construction, reduce the workload of large-scale operations, and move the process forward.

[0074] Specifically, in step 1, the large-scale middle assembly 1 of the deck and the large-scale middle assembly 2 of the middle channel are divided by the intersection line of the ramp plate assembly 21 and the longitudinal wall assembly 12 of the middle channel. This division method makes the butt joint length of the large-scale lateral frames of the upper and lower middle assemblies the shortest, the large-scale construction amount the least, and there is no problem of difficulty in insertion and assembly. At the same time, the large-scale middle assembly 1 of the deck and the large-scale middle assembly 2 of the middle channel can be manufactured in parallel, which can greatly shorten the overall period of segmented construction.

[0075] Step 2, divide the large-scale medium assembly 1 of the deck and the large-scale medium assembly 2 of the central channel into small-scale assemblies;

[0076] The large middle deck assembly 1 is divided into a deck assembly 11, a middle passage longitudinal wall assembly 12, a duct assembly 13, a side rib assembly 14, and a midship deck rib assembly 15;

[0077] The large central assembly 2 of the central channel is divided into a ramp plate assembly 21, a circular runway pool isolation wall assembly 22, a circular runway pool end assembly 23, and a lower platform assembly 24.

[0078] Step 3, material preparation;

[0079] Cut the plates or profiles required for the assembly of each section separately, prepare the tooling required for the assembly of each section, and arrange the parts according to the assembly division and production process of each section, and send them to each construction workshop and site.

[0080] Among them, the tooling required for the assembly and construction of each section is one or more of the process equipment for frame, hoisting and scaffolding erection; the required tooling is prepared in advance with the construction process and delivered to the assembly or section construction station for use. The lifting ear process equipment required for the next process is installed in the previous process. Other lifting ears or scaffolding process equipment used for the general assembly and closing are installed in the low-cavitation and planarization stages according to the assembly or section construction posture; prefabricated outfitting parts, piping systems, small equipment, etc. that need to be installed in the assembly or large assembly stage are manufactured and delivered according to the process flow to ensure that they can be installed in the corresponding process to avoid subsequent installation difficulties caused by legacy, such as guided installation and overhead installation.

[0081] Among them, each plate is cut by CNC cutting. For plates that need to be welded and assembled, automatic welding grooves are opened during cutting and automatic welding shrinkage compensation is reserved on the plates. For plates that need to be welded, a 6mm compensation amount is reserved in the length direction for subsequent segmented assembly or closing.

[0082] Step 4, partial assembly and transportation;

[0083] In the joint workshop, the aquaculture cabin transverse wall assembly 3, the circular walkway platform assembly 4, the vertical wall pier assembly 5, the side rib assembly 14, the midship deck rib assembly 15, the circular runway pool isolation wall assembly 22, the circular runway pool end assembly 23, and the lower platform assembly 24 are manufactured;

[0084] According to the assembly direction, the aquaculture cabin transverse wall assembly 3, the circular walkway platform assembly 4, the vertical wall pier assembly 5, the circular runway pool isolation wall assembly 22, the circular runway pool end assembly 23, and the lower platform assembly 24 are sent to the large assembly site; the side rib assembly 14 and the midship deck rib assembly 15 are sent to the flat workshop.

[0085] The aquaculture cabin transverse wall assembly 3, the circular walkway platform assembly 4, and the vertical wall pier assembly 5 are placed in the joint workshop for construction because of their small assembly size and relatively regular structure.

[0086] For the corresponding assemblies constructed in the joint plant, small group frames are set up according to the assembly form and support height requirements to achieve effective control of the production accuracy of the small group; when each small group is produced, the assembly production accuracy is controlled by measuring with a ruler, a steel tape measure, a plumb bob, and an instrument, among which the focus is on controlling the length and width, component installation accuracy, and component verticality. After the assembly is completed, pyrotechnic correction is carried out, and the completion accuracy is tested. If there are no problems, it will be transferred to the next process; in the small group production stage, according to the assembly construction posture, under the premise of not affecting the assembly transportation and lifting operations, some outfitting is installed in advance, such as pipe supports, square steel steps, handrails, outfitting characters, etc.

[0087] Specifically, in step 4, a lower platform frame 7 is provided when the lower platform assembly 24 is manufactured, and guide groove plates 71 are provided on the lower platform frame 7 at positions corresponding to the longitudinal walls on both sides of the lower platform assembly 24 to facilitate rapid positioning of the longitudinal wall panels.

[0088] Specifically, in step 4, a shape-preserving connection support 81 is provided at the port position of the breeding cabin transverse wall assembly 3 when it is manufactured in the joint factory building to avoid the opening precision deviation and at the same time serve as a reinforcement for the assembly turning over and hoisting.

[0089] Specifically, in step 4, when the annular runway pool isolation wall assembly 22 is manufactured, one side wall panel adopts a steel liner plug welding design, such as Fig.10 At A in the figure, a row of bottom panels is reserved during assembly. Fig.10 At point B in the figure, the equipment will be assembled in bulk after the welding of the internal horizontal frame of the isolation wall and the bottom plate of the circular runway pool is completed in the large assembly stage.

[0090] Step 5: The large-scale intermediate assembly 1 of the deck and the large-scale intermediate assembly 2 of the central channel are assembled simultaneously at different sites, and then the large-scale intermediate assembly 1 of the deck is transferred to the large-scale assembly site for large-scale assembly with the large-scale intermediate assembly 2 of the central channel.

[0091] Specifically, in step 5, the production process of the large-scale deck assembly 1 is as follows:

[0092] Each deck plate is placed on the flat paneling station in the plane workshop, and is automatically welded and spliced, with double-sided forming in one welding; the frame and each deck plate are automatically welded, with double-sided fillet welding in one welding to form a deck assembly 11;

[0093] The middle channel longitudinal wall assembly 12 is manufactured in the plane workshop, and the air duct assembly 13 is manufactured in the joint workshop, and then flows to the plane workshop;

[0094] The deck assembly 11 flows to the rib welding area to install the side rib assembly 14, the midship deck rib assembly 15, the middle channel longitudinal wall assembly 12, and the air duct assembly 13;

[0095] After production is completed, it will be transported to the large group site.

[0096] Specifically, in step 5, after the deck plates are spliced ​​and welded to form the main board, the plate marking is carried out starting from the edge without margin of the main board. The marking content includes the theoretical line of the component, the inspection line, and the network reference line of the middle deck section in the length and width direction of the hull, which is used for the subsequent section production, general assembly and closing alignment reference. The above-mentioned reference line should be marked with a reverse marking tool to the visible surface after the section production is completed, so as to facilitate subsequent use. After the network reference line is marked, it should be protected with tape to prevent sandblasting from damaging the mark.

[0097] Specifically, when the middle channel longitudinal wall assembly 12 is installed on the deck assembly 11, it is necessary to control the verticality of the two longitudinal walls, the spacing between the two longitudinal walls, and the installation height of the two longitudinal arms.

[0098] Specifically, during the production stage of the large deck center assembly 1, the inverted outfitting 101 can be installed in an inverted posture to avoid difficulties in installing the outfitting into the cabin after the subsequent large center assembly 2 of the central channel is covered. The inverted outfitting 101 includes pipe supports, pipes, cable brackets, etc.

[0099] Specifically, in step 5, the process of making the large-scale intermediate assembly 2 of the central channel and assembling it with the large-scale intermediate assembly 1 of the deck is as follows:

[0100] Step 51, ramp plate assembly 21, production, transportation and outfitting;

[0101] Specifically, in step 51, the rib plate assembly 212 on the slope plate, the circular runway pool arc plate assembly 213, and the circular runway pool bottom plate assembly 214 are completed in the joint workshop, and the circular runway pool arc plate assembly 213 and the circular runway pool bottom plate assembly 214 are assembled to form a circular runway pool arc plate bottom plate assembly, and then the circular runway pool arc plate bottom plate assembly and the rib plate assembly 212 on the slope plate flow to the plane workshop;

[0102] The ramp plate beam assembly 211 is manufactured in the flat workshop, and then flows to the rib plate welding area to install the ramp plate rib plate assembly 212 and the circular runway pool arc plate bottom plate assembly in sequence to form the ramp plate assembly 21, one on each side, for outfitting operations and transported to the large assembly site.

[0103] Specifically, in step 51, when the circular runway pool arc plate assembly 213 is manufactured, the arc plate and a row of straight plates above are assembled as a whole group, first assembled and then pressed, and then placed with the non-structural surface facing downward on the arc plate assembly frame 9 for support. The arc plate assembly frame 9 is about 1m high, and then the structural surface frame and the small frame are installed to form the circular runway pool arc plate assembly 213. Shape-preserving braces 82 are set at the head and tail positions of the arc to avoid deformation during the assembly process.

[0104] Specifically, in step 51, when the circular runway pool arc plate assembly 213 and the circular runway pool bottom plate assembly 214 are assembled, a portable horse stool tooling is used as a working platform, and there is no need to set up a large number of scaffolds. Specifically, the assembly process of the ramp plate assembly 21 is carried out on the ramp plate assembly tire frame, and an anti-inverting support 103 is set between the straight plate in the circular runway pool arc plate assembly 213 and the tire plate on the ramp plate assembly tire frame.

[0105] Step 52, the large-scale assembly 2 of the central channel is manufactured, outfitted and turned over;

[0106] Specifically, in step 52, at the large assembly site, a special rigid cradle 6 is set according to the lower surface structure of the large central assembly 2 of the central channel, the lower platform assembly 24 is first put on the cradle, and then the port and starboard ramp plate assemblies 21, the circular runway pool end assembly 23, and the circular runway pool isolation wall assembly 22 are installed in sequence to form the large central assembly 2 of the central channel, and the outfitting operation is carried out. Then, the large central assembly 1 of the deck is used as a cradle to turn over and install the large central assembly 2 of the central channel. When the large central assembly 2 of the central channel is installed, the center lines of the bow and stern hulls thereof are vertically aligned with the center line of the main deck hull.

[0107] Specifically, the rigid tire frame 6 is M-shaped, and the rigid tire frame 6 can assist in setting up a scaffolding construction platform, reduce the amount of scaffolding tooling, and meet the production requirements of the same type of segments and the same tire position, reducing the amount of materials used for setting up the tire frame.

[0108] Specifically, the rigid step 6 is provided with a guide plate 61 and a limit plate 62 which can quickly position the lower platform assembly 24 .

[0109] Among them, when installing the ramp plate assembly 21, the focus is on controlling the installation angle of the ramp plate beam assembly 211, the alignment accuracy between the lower end of the ramp plate beam assembly 211 and the lower platform assembly 24, and after the assembly positioning is completed, it is sealed and welded with the corresponding tire frame.

[0110] During the production of the large-scale middle assembly 2 of the central channel, since the lower platform assembly 24 is put on the tire first, the opening of the large-scale middle assembly 2 of the central channel is located at the upper end, and the basin-type outfitting operation 104 can be interspersed. The outfitting is a straight-up and straight-down hoisting operation, and the operation difficulty is small, avoiding the outfitting upside down installation after the assembly is turned over; if the tire position schedule is tight, the assembly can be transported to the outfitting site for outfitting operations and then transferred back to the large assembly site for subsequent turning over large assembly operations.

[0111] Step 6, the horizontal wall of the breeding cabin is assembled 3, the circular walkway platform is assembled 4, and the vertical wall pier is assembled 5;

[0112] Specifically, in step 6, at the large assembly site, the aquaculture cabin transverse wall assembly 3, the annular walkway platform assembly 4, and the vertical wall pier assembly 5 are installed, and the segment welding is completed to form a complete segment, and then the subsequent segment peripheral outfitting operation is carried out.

[0113] Among them, anti-collapse support tooling 102 is set during the installation of the aquaculture cabin transverse wall assembly 3, the circular walkway platform assembly 4, and the vertical wall pier assembly 5. The weld position is sealed before the assembly is unhooked to prevent the assembly from collapsing. At the same time, the assembly is installed according to the assembly installation alignment line and inspection line to control the verticality of the assembly installation and the same surface degree of the end face, providing a good precision foundation for the subsequent segment assembly and docking. Complete the overall welding of the segment to form a complete segment, and then carry out the remaining outfitting work on the periphery of the subsequent segment.

[0114] In the present application, the frame material penetration holes in the side rib assembly 14, the midship deck rib assembly 15, and the ramp plate rib assembly 212 are set as pull-in holes 103, which can reduce the use of structural patching plates and thus reduce the welding workload.

[0115] The construction method of the present invention optimizes the segment assembly division according to the structural characteristics of the middle deck segment, is guided by providing a complete intermediate product, and arranges the corresponding construction content according to the construction capacity characteristics of each plant site, which is conducive to the reasonable arrangement of workshop materials, orderly construction, reduced construction difficulty, and shortened large-scale construction period. The present invention reasonably divides the six-sided surrounding structure of the middle channel up and down to form the most important and critical large-scale middle assembly of the deck and the large-scale middle assembly of the central channel in the entire construction process. The two parts are assembled simultaneously in different sites to realize parallel operation, advance the process, and shorten the construction period.

[0116] Although the above describes the specific implementation mode of the present invention in conjunction with the accompanying drawings, it is not a limitation of the present invention. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art on the basis of the technical solution of the present invention without creative work are still within the protection scope of the present invention.

Claims

1. A method for constructing an enclosed intermediate deck in sections for building aquaculture vessels, characterized in that: The following steps are involved: Step 1, assembling and dividing the middle deck into sections; According to the structural characteristics of the middle deck segment, it is divided into large deck middle assembly, large central channel middle assembly, breeding cabin transverse wall assembly, circular walkway platform assembly, and vertical wall pier assembly; Step 2, divide the large and medium assemblies of the deck and the large and medium assemblies of the central channel into small assemblies; The large-scale middle assembly of the deck is divided into the deck assembly, the middle channel longitudinal wall assembly, the air duct assembly, the side rib assembly, and the mid-ship deck rib assembly; The large-scale assembly of the central channel is divided into the ramp plate assembly, the circular runway pool isolation wall assembly, the circular runway pool end assembly, and the lower platform assembly; Step 3, material preparation; Cut the plates or profiles required for the assembly of each section separately, prepare the tooling required for the assembly of each section, and arrange the parts according to the assembly division and production process of each section and send them to each construction workshop and site; Step 4, partial assembly and transportation; The horizontal wall assembly of the breeding cabin, the circular walkway platform assembly, the vertical wall pier assembly, the side rib assembly, the midship deck rib assembly, the circular runway pool isolation wall assembly, the circular runway pool end assembly, and the lower platform assembly are manufactured in the joint workshop; According to the assembly flow direction, the horizontal wall of the breeding cabin, the circular walkway platform, the vertical wall pier, the circular runway pool isolation wall, the circular runway pool end, and the lower platform are assembled and sent to the large assembly site; the side ribs and the midship deck ribs are assembled and sent to the flat workshop; Step 5: The large-scale intermediate assembly of the deck and the large-scale intermediate assembly of the central channel are assembled simultaneously at different sites, and then the large-scale intermediate assembly of the deck is transported to the large-scale assembly site for large-scale assembly with the large-scale intermediate assembly of the central channel; Step 6: Assemble the horizontal walls of the breeding cabin, assemble the circular walkway platform, and assemble and install the vertical wall piers.

2. The method for constructing an enclosed intermediate deck in sections for building aquaculture vessels according to claim 1, characterized in that: In step 4, a lower platform frame is set during the assembly of the lower platform, and guide groove plates are set on the lower platform frame at positions corresponding to the longitudinal walls on both sides of the lower platform assembly to facilitate rapid positioning of the longitudinal wall panels.

3. The method for constructing an enclosed intermediate deck in sections for building aquaculture vessels according to claim 1, characterized in that: In step 4, when the cross wall of the breeding cabin is assembled in the joint factory, a shape-preserving connecting support is set at the port position to avoid the opening precision deviation, and at the same time, it serves as a reinforcement for the assembly turning over and hoisting.

4. The method for constructing an enclosed intermediate deck in sections for building aquaculture vessels according to claim 1, characterized in that: In step 5, the large-scale assembly production process of the deck is as follows: Each deck plate is laid on the flat paneling station in the plane workshop, and is automatically welded and spliced, with double-sided forming in one welding; the frame and each deck plate are automatically welded, with double-sided fillet welding in one welding to form a deck assembly; The middle channel longitudinal wall assembly is made in the plane workshop, and the air duct assembly is made in the joint workshop, and then flows to the plane workshop; The deck assembly flows to the rib welding area to carry out the installation of the side rib assembly, the midship deck rib assembly, the middle channel longitudinal wall assembly, and the air duct assembly; After production is completed, it will be transported to the large group site.

5. The method for constructing the enclosed middle deck in sections for building aquaculture vessels according to claim 4, characterized in that: In step 5, after the deck plates are spliced ​​and welded to form the main board, the plate is marked starting from the edge without margin of the main board. The marking content includes the component theoretical line, the inspection line and the network reference line of the middle deck section in the length and width direction of the hull, which is used for the subsequent section production, general assembly and closing alignment reference.

6. The method for constructing the enclosed middle deck in sections for building aquaculture vessels according to claim 1, characterized in that: In step 5, the large-scale assembly process of the central channel and the large-scale assembly process of the deck are as follows: Step 51, assembling, manufacturing, transporting and outfitting the ramp plate; Step 52, the large-scale assembly 2 of the central channel is manufactured, outfitted and turned over.

7. The method for constructing the enclosed intermediate deck in sections for constructing aquaculture vessels according to claim 6, characterized in that: In step 51, the rib plate assembly on the slope plate, the circular runway pool arc plate assembly, and the circular runway pool bottom plate assembly are completed in the joint workshop, and the circular runway pool arc plate assembly and the circular runway pool bottom plate assembly are assembled to form a circular runway pool arc plate bottom plate assembly, and then the circular runway pool arc plate bottom plate assembly and the rib plate assembly on the slope plate flow to the plane workshop; The ramp plate beam assembly is manufactured in the flat workshop, and then flows to the rib plate welding area to install the ramp plate rib plate assembly and the circular runway pool arc plate bottom plate assembly in turn to form a ramp plate assembly, one on each side, for outfitting operations and transported to the large assembly site.

8. The method for constructing the enclosed middle deck in sections for building aquaculture vessels according to claim 6, characterized in that: In step 52, a special rigid cradle is set up at the large assembly site according to the lower surface structure of the large central assembly of the central channel. The lower platform assembly is first put on the cradle, and then the port and starboard ramp plate assemblies, the circular runway pool end assembly, and the circular runway pool isolation wall assembly are installed in sequence to form the large central assembly of the central channel. The outfitting operation is then carried out, and then the large central assembly of the central channel is turned over and installed using the large central assembly of the deck as a cradle. When the large central assembly of the central channel is installed, the center lines of the bow and stern hull are vertically aligned with the center line of the main deck hull.

9. The method for constructing an enclosed intermediate deck in sections for building aquaculture vessels according to claim 8, characterized in that: The rigid tire frame is M-shaped.

10. The method for constructing the enclosed middle deck in sections for building aquaculture vessels according to claim 8, characterized in that: The rigid step is provided with a guide plate and a limit plate which can quickly position the lower platform assembly.

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