A manufacturing method for the living quarter section of a crude oil transfer barge

Abstract

The present invention discloses a manufacturing method for the living area section of a crude oil barge. The method comprises the following steps: obtaining the section of the living area of the crude oil barge hull and dividing the section into various group unit components; fabricating a platform base on a jig; welding a first watertight rib plate, a second watertight rib plate and a box plate member to a rear longitudinal bulkhead assembly respectively, and welding the butt joints between the first watertight rib plate, the second watertight rib plate, the rear longitudinal bulkhead assembly and the platform base; welding a front longitudinal bulkhead assembly and a watertight bulkhead assembly to a side shell plate assembly respectively, and welding the butt joints between the front longitudinal bulkhead assembly, the side shell plate assembly, the watertight bulkhead assembly and the platform base; adopting the manufacturing method of the present invention can avoid the deformation of components during hoisting, positioning and welding, solve the problem of large assembly gaps; and adopt reasonable sectional construction steps to reduce the number of welds, improve the construction quality, and further ensure that the positioning accuracy and assembly gaps meet the requirements.

Description

Technical Field

[0001] The present invention relates to the field of crude oil barge manufacturing, and particularly to a manufacturing method for the living area section of a crude oil barge. Background Art

[0002] Traditional crude oil transportation usually adopts the combination mode of "FPSO (Floating Production Storage and Offloading Vessel) + shuttle tanker". Considering the complex sea conditions under the combined action of wind, wave and current near the operation sea area of FPSO, a shuttle tanker with good dynamic positioning performance can approach the FPSO better and complete the crude oil transshipment work. However, at present, the international oil price continues to operate at a low level. The transshipment mode of "FPSO + shuttle tanker" has a relatively small single - shipment volume of crude oil and a relatively high transportation cost. Especially for long - distance transportation, this defect is particularly significant, greatly squeezing the profit space of crude oil production companies.

[0003] Compared with shuttle tankers, VLCCs (Very Large Crude Carriers) have a larger single - shipment volume, which can greatly reduce the transshipment cost of crude oil at sea. However, traditional VLCC ship types have poor dynamic positioning ability. If they are close to the FPSO for crude oil transshipment, they need to rely on complex multi - point mooring and the help of auxiliary ships to reach a relatively stable state, and have relatively high requirements for the seabed conditions of the operation sea area. Therefore, in order to meet the above - mentioned market demand and build a transshipment bridge between VLCCs and FPSOs, CTV (Crude Oil Transfer Vessel) came into being.

[0004] The superstructure part of a crude oil barge is usually arranged with various crew living area cabins. Since the living area only needs to meet the daily life use of the crew and does not need to be equipped with large - scale marine engine equipment, based on the consideration of construction economy, the living area of the crude oil barge is made by welding thinner steel plates and skeletons. However, due to the large volume of sectional components and the large surface area of the platform base, the welds between them are long, and it is easy to deform during hoisting and welding, resulting in a relatively large assembly gap. Therefore, it is difficult to ensure that the positioning accuracy and assembly gap meet the requirements by using conventional construction methods. Summary of the Invention

[0005] The purpose of the present invention is to propose a manufacturing method for the living area section of a crude oil barge.

[0006] To achieve this purpose, the present invention adopts the following technical solutions:

[0007] A manufacturing method for the living area section of a crude oil barge, the method comprising the following steps:

[0008] S100: Obtain the section of the living area of the crude oil barge hull, and divide the section into each group unit,

[0009] The living area section of the crude oil transfer barge hull includes a platform base, a rear longitudinal bulkhead assembly, a watertight bulkhead assembly, a side shell plate assembly, and a front longitudinal bulkhead assembly;

[0010] S200: Fabricate the platform base on the jig;

[0011] S300: Fabricate the rear longitudinal bulkhead assembly, box members, the first watertight rib plate, and the second watertight rib plate;

[0012] S400: Weld the first watertight rib plate, the second watertight rib plate, and the box plate parts to the rear longitudinal bulkhead assembly respectively. After hoisting the assembled rear longitudinal bulkhead assembly to the rear side of the platform base for positioning, weld the butt joints between the first watertight rib plate, the second watertight rib plate, the rear longitudinal bulkhead assembly, and the platform base;

[0013] S500: Fabricate the front longitudinal bulkhead assembly, the side shell plate assembly, and the watertight bulkhead assembly respectively;

[0014] S600: Weld the front longitudinal bulkhead assembly and the watertight bulkhead assembly to the side shell plate assembly respectively. After hoisting the assembled side shell plate assembly to the front side of the platform base for positioning, weld the butt joints between the front longitudinal bulkhead assembly, the side shell plate assembly, the watertight bulkhead assembly, and the platform base;

[0015] S700: Fabricate the front connecting seat and weld it to the front side of the front longitudinal bulkhead assembly.

[0016] Preferably, step S200 specifically includes:

[0017] S201: After respectively splicing and welding multiple rectangular steel plates and the rectangular steel plates and fillet steel plates to form a first bottom plate and a second bottom plate, place them on the jig and fix them through the angle steel array on the jig, and form the platform bottom plate by welding the first bottom plate and the second bottom plate;

[0018] S202: Weld the first triangular connecting plate to the end of the first bulb flat steel plate part to form multiple bulkhead connecting members;

[0019] S203: Weld transverse stiffening rib plates on the platform bottom plate;

[0020] S204: Weld longitudinally arranged first bulb flat steel plate parts and bulkhead connectors on the platform bottom plate;

[0021] S205: Weld longitudinal girders and transverse beam members on the platform bottom plate to form the platform base.

[0022] Preferably, step S300 specifically includes the following steps:

[0023] S301: Splice and weld multiple rectangular steel plates to form the rear longitudinal bulkhead side plate;

[0024] S302: Weld the second triangular connecting plate to the end of the second bulb flat steel plate to form a base connecting member;

[0025] S303: Weld the base connecting member and the second bulb flat steel plate to the longitudinal bulkhead side plate;

[0026] S304: Weld longitudinal stiffening rib plates on the longitudinal bulkhead side plate;

[0027] S305: Weld the butt joint seam between the longitudinal stiffening rib plate and the base connecting member.

[0028] Preferably, step S400 specifically includes the following steps:

[0029] S401: Weld the first watertight rib plate and the second watertight rib plate to both sides of the rear longitudinal bulkhead assembly respectively;

[0030] S402: Weld the box body steel plate to the rear longitudinal bulkhead assembly;

[0031] S403: Lift the rear longitudinal bulkhead assembly that has been assembled with the first watertight rib plate, the second watertight rib plate and the box body steel plate onto the platform base, and position the rear longitudinal bulkhead assembly by welding the butt joint seams between the first watertight rib plate, the second watertight rib plate and the platform base;

[0032] S404: First weld the longitudinal butt joint seam between the rear longitudinal bulkhead assembly and the platform base, and then weld the transverse butt joint seam between the rear longitudinal bulkhead assembly and the platform base.

[0033] Preferably, step S400 further includes the following step: S405: Weld strengthening patch plates between the rear longitudinal bulkhead assembly and the crossbeam member of the platform base.

[0034] Preferably, step S600 specifically includes the following steps:

[0035] S601: Weld the front longitudinal bulkhead assembly and the watertight bulkhead assembly to both sides of the side shell plate assembly respectively;

[0036] S602: Lift the side shell plate assembly that has been assembled with the front longitudinal bulkhead assembly and the watertight bulkhead assembly onto the platform base, and successively weld the T-shaped butt joint seams between the front longitudinal bulkhead assembly, the side shell plate assembly, the watertight bulkhead assembly and the platform base;

[0037] S603: Successively weld the vertical butt joint seams between the front longitudinal bulkhead assembly and the platform base, the vertical butt joint seams between the side shell plate assembly and the platform base, and the vertical butt joint seams between the watertight bulkhead assembly and the platform base;

[0038] S604: Weld the transverse butt joints between the front longitudinal bulkhead assembly and the platform base, the diagonal butt joints between the side shell plate assembly and the platform base, and the longitudinal butt joints between the watertight bulkhead assembly and the platform base in sequence.

[0039] Preferably, step S700 specifically includes the following steps:

[0040] S701: Fabricate the front connection seat;

[0041] S702: Lift and install the front connection seat to the front side of the front longitudinal bulkhead assembly;

[0042] S703: First, weld the longitudinal butt joints between the front connection seat and the front longitudinal bulkhead assembly, and then weld the vertical butt joints between the front connection seat and the front longitudinal bulkhead assembly.

[0043] The beneficial effects of the present invention are as follows: According to the structural characteristics of the living quarters of the crude oil barge and the requirements for the connection strength of components, by adopting the manufacturing method of the present invention and adjusting the construction process of the living quarters, not only the deformation that is likely to occur during the hoisting, positioning, and welding of components is avoided, and the problem of large assembly gaps is solved; but also reasonable sectional construction steps are adopted to reduce the number of welds, improve the construction quality, and further ensure that the positioning accuracy and assembly gaps meet the requirements. Description of the Drawings

[0044] The drawings further illustrate the present invention, but the content in the drawings does not constitute any limitation to the present invention.

[0045] Figure 1 is a flowchart of the manufacturing method of one embodiment of the present invention;

[0046] Figure 2 is a schematic diagram of the overall sectional structure of the living quarters of the crude oil barge of one embodiment of the present invention;

[0047] Figure 3 is a schematic diagram of the structure of the platform base of one embodiment of the present invention;

[0048] Figure 4 is a schematic diagram of the structure of the rear longitudinal bulkhead assembly of one embodiment of the present invention;

[0049] Figure 5 is a schematic diagram of the connection between the rear longitudinal bulkhead assembly and the platform base of one embodiment of the present invention;

[0050] Figure 6 is a schematic diagram of the connection between the front longitudinal bulkhead assembly, the watertight bulkhead assembly, and the side shell plate assembly and the platform base of one embodiment of the present invention.

[0051] Among them: platform base 1, rear longitudinal bulkhead assembly 2, watertight bulkhead assembly 3, side outer plate assembly 4, front longitudinal bulkhead assembly 5, platform bottom plate 11, box member 22, first watertight rib 23, second watertight rib 24, front connecting seat 6, first triangular connecting plate 111, first bulb flat steel sheet 112, bulkhead connecting member 113, transverse reinforcing rib plate 114, longitudinal girder 115, crossbeam member 116, rear longitudinal bulkhead side plate 211, second triangular connecting plate 212, second bulb flat steel sheet 213, longitudinal reinforcing rib plate 214, reinforcing patch plate 217. DETAILED DESCRIPTION

[0052] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0053] A method for manufacturing a living area section of a crude oil transfer ship in this embodiment is shown in the attached Figure 1 and 2 , the method comprises the following steps:

[0054] S100: Obtain the segment of the living area of the crude oil transfer barge hull, and divide the segment into various group units.

[0055] The living area section of the crude oil transfer barge hull includes the platform base, the rear longitudinal bulkhead assembly, the watertight bulkhead assembly, the side shell assembly and the forward longitudinal bulkhead assembly;

[0056] S200: Make a platform base on the tire frame;

[0057] S300: Manufacturing the rear longitudinal bulkhead assembly, box components, first watertight ribs and second watertight ribs;

[0058] S400: Weld the first watertight rib, the second watertight rib and the box body sheet to the rear longitudinal bulkhead assembly respectively, lift the assembled rear longitudinal bulkhead assembly to the rear side of the platform base for positioning, and then weld the butt joints between the first watertight rib, the second watertight rib and the rear longitudinal bulkhead assembly and the platform base;

[0059] S500: Produce the forward longitudinal bulkhead assembly, side shell assembly and watertight bulkhead assembly respectively;

[0060] S600: Weld the forward longitudinal bulkhead assembly and the watertight bulkhead assembly to the side shell assembly respectively, lift the assembled side shell assembly to the front side of the platform base for positioning, and then weld the butt joints between the forward longitudinal bulkhead assembly, the side shell assembly and the watertight bulkhead assembly and the platform base;

[0061] S700: Make a front connecting seat and weld the front connecting seat to the front side of the front longitudinal bulkhead assembly.

[0062] According to the structural characteristics of the living quarters of the crude oil barge and the requirements for the connection strength of components, by adopting the manufacturing method of this embodiment, through adjusting the construction process of the living quarters, not only the deformation prone to occur during the hoisting, positioning and welding of components is avoided, and the problem of large assembly gaps is solved; but also a reasonable segmented construction step is adopted to reduce the number of welds, improve the construction quality, and further ensure that the positioning accuracy and assembly gaps meet the requirements.

[0063] Preferably, referring to the appendix Figure 3 , step S200 specifically includes: S201: After welding multiple rectangular steel plates and multiple rectangular steel plates and fillet steel plates together to form the first bottom plate and the second bottom plate respectively, place them on the jig and fix them through the angle steel array on the jig, and weld the first bottom plate and the second bottom plate together to form the platform bottom plate;

[0064] S202: Weld the first triangular connecting plate to the end of the first bulb flat steel plate to form multiple bulkhead connecting components;

[0065] S203: Weld the transversely arranged stiffening rib plates on the platform bottom plate;

[0066] S204: Weld the longitudinally arranged first bulb flat steel plate and bulkhead connecting pieces on the platform bottom plate;

[0067] S205: Weld longitudinal girders and transverse beams on the platform bottom plate to form the platform base.

[0068] Thus, by splicing multiple rectangular steel plates and multiple rectangular steel plates and fillet steel plates to form the first bottom plate and the second bottom plate, and then splicing the first bottom plate and the second bottom plate to form the platform bottom plate, using multiple steel plates with smaller surface areas to splice into a platform bottom plate with a larger surface area, this method not only facilitates the transportation of the platform bottom plate, but also reduces the local deformation that occurs during the transportation and welding of the platform bottom plate. By welding transversely arranged stiffening rib plates and longitudinally arranged first bulb flat steel plates on the platform bottom plate, the framework of the platform base is formed, while the bulkhead connecting pieces, longitudinal girders and transverse beams are used for welding with the rear longitudinal bulkhead assembly, the front longitudinal bulkhead assembly, the watertight bulkhead assembly and the side shell plating.

[0069] Preferably, referring to the appendix Figure 4 , step S300 specifically includes the following steps:

[0070] S301: Splice and weld multiple rectangular steel plates to form the rear longitudinal bulkhead side plate;

[0071] S302: Weld the second triangular connecting plate to the end of the second bulb flat steel plate to form the base connecting component;

[0072] S303: Weld the base connecting component and the second bulb flat steel plate to the longitudinal bulkhead side plate;

[0073] S304: Weld longitudinal stiffening plates on the longitudinal bulkhead side plates;

[0074] S305: Weld the butt joints between the longitudinal stiffening plates and the base connection members.

[0075] Thus, through the methods of steps S301 - S305, the construction efficiency and quality of the rear longitudinal bulkhead assembly are improved, the accuracy of the rear longitudinal bulkhead assembly when installed on the platform base is ensured, and the construction efficiency of the living area of the crude oil transfer barge is improved.

[0076] Preferably, referring to the appendix Figure 5 , step S400 specifically includes the following steps:

[0077] S401: Weld the first watertight rib plate and the second watertight rib plate on both sides of the rear longitudinal bulkhead assembly respectively;

[0078] S402: Weld the box sheet metal parts on the rear longitudinal bulkhead assembly;

[0079] S403: Lift the rear longitudinal bulkhead assembly that has been assembled with the first watertight rib plate, the second watertight rib plate and the box sheet metal parts onto the platform base, and position the rear longitudinal bulkhead assembly by welding the butt joints between the first watertight rib plate, the second watertight rib plate and the platform base;

[0080] S404: First weld the longitudinal butt joints between the rear longitudinal bulkhead assembly and the platform base, and then weld the transverse butt joints between the rear longitudinal bulkhead assembly and the platform base.

[0081] By first welding the first watertight rib plate and the second watertight rib plate on the rear longitudinal bulkhead assembly, and then lifting the assembled rear longitudinal bulkhead assembly onto the platform base for welding, it is convenient for positioning and avoids installation errors caused by multiple positionings.

[0082] Preferably, step S400 further includes the following step: S405: Weld reinforcing patch plates between the rear longitudinal bulkhead assembly and the beam members of the platform base. The reinforcing patch plates are used to fill the gaps between the upper surface of the rear longitudinal bulkhead assembly and the platform base and the beam mechanism, increase the connection area between the rear longitudinal bulkhead assembly and the platform base, and ensure the reliability of the connection between the rear longitudinal bulkhead assembly and the platform base.

[0083] Preferably, referring to the appendix Figure 6 , S600 specifically includes the following steps:

[0084] S601: Weld the front longitudinal bulkhead assembly and the watertight bulkhead assembly on both sides of the side shell plate assembly respectively;

[0085] S602: hoist the side shell assembly assembled with the forward longitudinal bulkhead assembly and the watertight bulkhead assembly onto the platform base, and weld the T-shaped butt welds between the forward longitudinal bulkhead assembly, the side shell assembly, the watertight bulkhead assembly and the platform base in sequence;

[0086] S603: Weld the vertical butt joints between the front longitudinal bulkhead assembly and the platform base, the vertical butt joints between the side shell assembly and the platform base, and the vertical butt joints between the watertight bulkhead assembly and the platform base in sequence;

[0087] S604: Weld the transverse butt joints between the forward longitudinal bulkhead assembly and the platform base, the oblique butt joints between the side shell assembly and the platform base, and the longitudinal butt joints between the watertight bulkhead assembly and the platform base in sequence.

[0088] By first welding the front longitudinal bulkhead assembly and the watertight bulkhead assembly to the side outer plate assembly respectively, and then hoisting the assembled side outer plate assembly onto the platform base for welding, positioning is facilitated and installation errors caused by multiple positioning are avoided.

[0089] Preferably, S700 specifically includes the following steps:

[0090] S701: Make the front connection seat;

[0091] S702: hoist the front connection seat to the front side of the front longitudinal bulkhead assembly;

[0092] S703: First weld the longitudinal butt joint between the front connecting seat and the front longitudinal bulkhead assembly, and then weld the vertical butt joint between the front connecting seat and the front longitudinal bulkhead assembly.

[0093] Therefore, in this embodiment, the welding of the rear longitudinal bulkhead assembly, the front longitudinal bulkhead assembly, the side shell assembly and the watertight bulkhead assembly to the platform base is first completed, and then the front connecting seat is welded to the front side of the front longitudinal bulkhead assembly. This method ensures the continuity of welding and prevents deformation during the manufacturing process.

[0094] The technical principle of the present invention is described above in conjunction with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the scope of protection of the present invention in any way. Based on the explanations herein, those skilled in the art can associate other specific implementations of the present invention without paying creative labor, and these methods will fall within the scope of protection of the present invention.

Claims

1. A manufacturing method for the living quarters section of an oil transfer barge, characterized in that, The method includes the following steps: S100: Obtain the sectional part of the living area of the crude oil barge hull, and divide this sectional part into each group unit. The sectional part of the living area of the crude oil barge hull includes a platform base, a rear longitudinal bulkhead assembly, a watertight bulkhead assembly, a side shell plate assembly, and a front longitudinal bulkhead assembly. S200: Fabricate the platform base on a jig. S300: Fabricate the rear longitudinal bulkhead assembly, box members, the first watertight rib plate, and the second watertight rib plate. S400: Weld the first watertight rib plate, the second watertight rib plate, and the box members to the rear longitudinal bulkhead assembly respectively. Lift the assembled rear longitudinal bulkhead assembly to the rear side of the platform base for positioning, and then weld the butt joints between the first watertight rib plate, the second watertight rib plate, the rear longitudinal bulkhead assembly, and the platform base. S500: Fabricate the front longitudinal bulkhead assembly, the side shell plate assembly, and the watertight bulkhead assembly respectively. S600: Weld the front longitudinal bulkhead assembly and the watertight bulkhead assembly to the side shell plate assembly respectively. Lift the assembled side shell plate assembly to the front side of the platform base for positioning, and then weld the butt joints between the front longitudinal bulkhead assembly, the side shell plate assembly, the watertight bulkhead assembly, and the platform base. S700: Fabricate a front connection seat and weld it to the front side of the front longitudinal bulkhead assembly.

2. The manufacturing method of the living quarter section of a crude oil transfer barge according to claim 1, characterized in that Step S200 specifically includes: S201: After respectively splicing and welding multiple rectangular steel plates and multiple rectangular steel plates and fillet steel plates to form a first bottom plate and a second bottom plate, place them on the jig and fix them through the angle steel array on the jig, and weld the first bottom plate and the second bottom plate to form a platform bottom plate. S202: Weld the first triangular connection plate to the end of the first bulb flat steel plate to form multiple bulkhead connection members. S203: Weld transverse stiffening rib plates on the platform bottom plate. S204: Weld longitudinally arranged first bulb flat steel plates and bulkhead connection members on the platform bottom plate. S205: Weld longitudinal girders and transverse beam members on the platform bottom plate to form a platform base.

3. A manufacturing method for the living quarters section of a crude oil transfer barge according to claim 1, characterized in that, Step S300 specifically includes the following steps: S301: Splice and weld multiple rectangular steel plates to form a rear longitudinal bulkhead side plate. S302: Weld the second triangular connection plate to the end of the second bulb flat steel plate to form a base connection member. S303: Weld the base connection member and the second bulb flat steel plate to the longitudinal bulkhead side plate. S304: Weld longitudinal stiffening rib plates on the longitudinal bulkhead side plate. S305: Weld the butt joints between the longitudinal stiffening rib plates and the base connection members.

4. A manufacturing method for the living area section of a crude oil transfer barge according to claim 2, characterized in that, Step S400 specifically includes the following steps: S401: Weld the first watertight rib plate and the second watertight rib plate to both sides of the rear longitudinal bulkhead assembly respectively. S402: Weld the box members to the rear longitudinal bulkhead assembly. S403: Lift the rear longitudinal bulkhead assembly completed with the assembly of the first watertight rib plate, the second watertight rib plate, and the box members onto the platform base, and position the rear longitudinal bulkhead assembly by welding the butt joints between the first watertight rib plate, the second watertight rib plate, and the platform base. S404: First weld the longitudinal butt joints between the rear longitudinal bulkhead assembly and the platform base, and then weld the transverse butt joints between the rear longitudinal bulkhead assembly and the platform base.

5. A manufacturing method for the living area section of a crude oil transfer barge according to claim 4, characterized in that, Step S400 further includes the following steps: S405: Weld a reinforcing patch plate between the rear longitudinal bulkhead assembly and the beam member of the platform base.

6. A method for manufacturing a living quarter section of a crude oil transfer barge according to claim 1, characterized in that, Step S600 specifically includes the following steps: S601: Weld the front longitudinal bulkhead assembly and the watertight bulkhead assembly to both sides of the side shell plate assembly respectively; S602: Lift and install the side shell plate assembly that has been assembled with the front longitudinal bulkhead assembly and the watertight bulkhead assembly onto the platform base, and weld the T-shaped butt welds between the front longitudinal bulkhead assembly, the side shell plate assembly, the watertight bulkhead assembly and the platform base in sequence; S603: Weld the vertical butt joints between the front longitudinal bulkhead assembly and the platform base, the vertical butt joints between the side shell plate assembly and the platform base, and the vertical butt joints between the watertight bulkhead assembly and the platform base in sequence; S604: Weld the transverse butt joints between the front longitudinal bulkhead assembly and the platform base, the diagonal butt joints between the side shell plate assembly and the platform base, and the longitudinal butt joints between the watertight bulkhead assembly and the platform base in sequence.

7. A manufacturing method for the living quarters section of a crude oil barge transfer ship according to claim 1, characterized in that, Step S700 specifically includes the following steps: S701: Fabricate the front connection seat; S702: Lift and install the front connection seat to the front side of the front longitudinal bulkhead assembly; S703: First, weld the longitudinal butt joint between the front connection seat and the front longitudinal bulkhead assembly, and then weld the vertical butt joint between the front connection seat and the front longitudinal bulkhead assembly.

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