1. The utility model provides a process is built to super large-scale FPSO piping lane module, the multilayer frame-type spatial structure that the piping lane module was constructed for stand and horizontal layer deck slab, wherein last segmentation at the top horizontal layer deck slab with the hookup location of stand is provided with bayonet hoisting point that piping lane module shipment was used, walk to arrange space, equipment arrangement space and personnel's passageway including the process line that top-down distributes, its characterized in that, it includes following process steps:

s1: dividing the pipe gallery module into an upper section and a lower section for prefabricating respectively, prefabricating a cushion pier, and welding and fixing the cushion pier and the lower section;

s2: carrying out sand blasting coating on the upper section and the lower section of the pipe gallery module;

s3: hoisting the upper segment of the transport pipe gallery module to a final assembly position, and transporting the lower segment to the final assembly position by using an overhanging transport auxiliary frame and an SPMT;

s4: and assembling the upper section and the lower section of the pipe gallery module.

2. The ultra-large FPSO pipe gallery module building process according to claim 1, wherein: in step S1, the upper section of the pipe gallery module is a process pipeline routing layout space; the lower section of the pipe gallery module is a personnel channel and equipment arrangement space.

3. The process of claim 1, wherein in step S3, when the upper segment of the pipe gallery module is hoisted integrally to the final assembly position, the hoisting point is a hoisting point fixed on the top of the upper segment for loading on a ship.

4. The ultra-large FPSO pipe gallery module building process according to claim 1, wherein: in step S3, the plurality of overhanging transportation subframes are symmetrically disposed on both sides of the lower segment, each overhanging transportation subframe includes a main body and a connecting structure, the main body is fixed to the lower segment through the connecting structure, the main body includes a bottom brace, a vertical brace, and an inclined brace, a planar pattern formed by the bottom brace, the vertical brace, and the inclined brace in an end-to-end manner is a right triangle, the vertical brace is parallel to the vertical column, and a lower surface of the bottom brace is flush with a bottom surface of a horizontal layer deck plate at the bottom of the lower segment.

5. The process of constructing a very large FPSO pipe rack module according to claim 4, wherein in step S3, the area between the bottom horizontal deck slab of the lower section of the pipe rack module and the ground is a transportation space, and the SPMT is located in the transportation space.

6. The ultra-large FPSO pipe gallery module building process according to claim 1, wherein: in step S1, the pad pier includes two sections of stacked and fixed H-shaped steel, and the pad pier is welded and fixed to the bottom of the pillar, and the height of the pad pier is the height difference between SPMT and the bottom surface of the horizontal deck slab at the bottom of the lower section from the bottom surface.

7. The ultra-large FPSO pipe gallery module building process according to claim 4, wherein: the bottom support, the vertical support and the inclined support are all H-shaped steel, a reinforcing rib plate is arranged at the connecting position of the inclined support and the bottom support, a connecting beam is fixedly arranged at the connecting position of the inclined support and the vertical support, and the connecting beam is H-shaped steel parallel to the bottom support.

8. The ultra-large FPSO pipe gallery module building process according to claim 7, wherein: the connecting structure comprises a connecting plate, a fastener and two supporting beams, wherein the supporting beams are H-shaped steel, the two supporting beams are vertically and fixedly arranged on the upright post and extend out towards the vertical support direction, one supporting beam is in butt joint with the bottom support and is fixed with the fastener through the connecting plate, and the other supporting beam is in butt joint with the connecting beam and is fixed with the fastener through the connecting plate.

9. The very large FPSO pipe gallery module building process according to claim 8, wherein: the fastener is a bolt and a nut.

Background

The ultra-large FPSO pipe gallery module has the characteristics of ultra-long, ultra-narrow and ultra-high, and the traditional construction process has the following problems: 1. for the pipe gallery module, conventional technology is according to the layer prefabrication, and the module is comparatively long and thin simultaneously, and overall structure intensity is relatively weak, for guaranteeing transportation and hoist and mount requirement, needs to divide into two singlechips with every layer of horizontal piece. If the method is adopted, a large amount of prefabrication, transportation, hoisting and spraying resources are required to be occupied, and the efficiency is low; 2. conventional burst transportation has two kinds of modes, and flatbed or SPMT transports, adopts the flatbed to transport under general condition, surpasss the adoption SPMT transportation of flatbed ability, because this piping lane module width is less than the flatbed width, the flatbed can't directly get into the burst below. It is conventional practice to use a portal frame for transportation on a flat car, which requires a large number of portal frames to be made and two transports per single sheet, which is resource intensive. 3. The hoisting is divided into workshop hoisting and site hoisting, the specification and the welding position of the temporary hoisting point of the deck plate are determined by calculating and checking after the fragmentation scheme is determined in the conventional process, and the temporary hoisting point needs to be cut off after final assembly. According to the traditional process, the hoisting point consumes a large amount. 4. Traditional process deck plate construction requires three types of pad piers: prefabricating a cushion pier, transporting the cushion pier and assembling the cushion pier. The specific sequence of use is as follows: after the deck plate finishes prefabrication on the prefabricated pad pier, the deck plate is jacked to the height which can be entered by a transport vehicle by using a synchronous jacking system, then 6-8 transport pad piers are placed on each deck plate, transported to a final assembly site and placed on the final assembly pad pier. The traditional process cushion pier is in huge demand.

Disclosure of Invention

The invention aims to provide a process method for building an ultra-large FPSO pipe gallery module, which can save the building cost and improve the building efficiency of the pipe gallery module.

In order to solve the technical problem, the invention provides a construction process of an ultra-large FPSO pipe gallery module, wherein the pipe gallery module is of a multi-layer frame type space structure constructed by upright columns and horizontal deck plates, wherein plug-in lifting points for shipping the pipe gallery module are arranged at the connecting positions of the horizontal deck plates on the top of the upper section and the upright columns, and comprise a process pipeline routing arrangement space, an equipment arrangement space and a personnel channel which are distributed from top to bottom, and the construction process is characterized by comprising the following process steps:

s1: dividing the pipe gallery module into an upper section and a lower section for prefabricating respectively, prefabricating a cushion pier, and welding and fixing the cushion pier and the lower section;

s2: carrying out sand blasting coating on the upper section and the lower section of the pipe gallery module;

s3: hoisting the upper segment of the transport pipe gallery module to a final assembly position, and transporting the lower segment to the final assembly position by using an overhanging transport auxiliary frame and an SPMT;

s4: and assembling the upper section and the lower section of the pipe gallery module.

Further, in step S1, the upper section of the pipe rack module is a process pipeline routing layout space; the lower section of the pipe gallery module is a personnel channel and equipment arrangement space.

Further, in step S3, when the upper segment of the pipe gallery module is integrally hoisted to the final assembly position, the hoisting point is a hoisting point for loading, which is fixedly arranged at the top of the upper segment.

Further, in step S3, the overhanging transportation auxiliary frames are provided in plural and symmetrically disposed on two sides of the lower segment, each overhanging transportation auxiliary frame includes a main body and a connecting structure, the main body is fixed to the lower segment through the connecting structure, the main body includes a bottom brace, a vertical brace and an inclined brace, a planar pattern formed by the bottom brace, the vertical brace and the inclined brace in an end-to-end manner is a right triangle, the vertical brace is parallel to the vertical column, and a lower surface of the bottom brace is flush with a bottom surface of the horizontal layer deck plate at the bottom of the lower segment.

Further, in step S3, the area between the bottom horizontal deck slab of the lower section of the pipe gallery module and the ground is a transportation space in which the SPMT is located.

Further, in step S1, the pad pier includes two sections of stacked and fixed H-shaped steel, and the pad pier is welded and fixed at the bottom of the pillar, and the height of the pad pier is the difference between SPMT and the bottom surface of the horizontal deck slab at the bottom of the lower section from the bottom surface.

Furthermore, the bottom support, the vertical support and the inclined support are all H-shaped steel, a reinforcing rib plate is arranged at the connecting position of the inclined support and the bottom support, a connecting beam is fixedly arranged at the connecting position of the inclined support and the vertical support, and the connecting beam is H-shaped steel parallel to the bottom support.

Furthermore, the connecting structure comprises a connecting plate, a fastener and two supporting beams, wherein the supporting beams are H-shaped steel, the two supporting beams are vertically and fixedly arranged on the upright post and extend out towards the vertical support direction, one of the supporting beams is in butt joint with the bottom support and is fixed by the connecting plate and the fastener, and the other supporting beam is in butt joint with the connecting beam and is fixed by the connecting plate and the fastener.

Further, the fastener is a bolt and a nut.

The invention has the technical effects that: 1. according to the ultra-large FPSO pipe gallery module construction process, the adopted slicing mode is the upper-subsection and the lower-subsection two frame type slicing, on one hand, the structural strength of the frame type slicing is stronger than that of the traditional single-layer slicing, deformation control of the upper-subsection and the lower-subsection during hoisting and transportation is facilitated, the assembling frequency of the upright post is reduced, only one-time upright post butt joint is needed, the verticality of the upright post is effectively guaranteed, compared with the traditional process, the number of the slicing is small, a large number of prefabrication, transportation, hoisting and spraying resources are not needed, the work efficiency is greatly improved, the problem of pipe gallery module transportation is solved, and the project cost is reduced.

2. According to the construction process of the ultra-large FPSO pipe gallery module, the upper section is integrally hoisted to a general assembly position by adopting hoisting equipment, the top of the upper section is provided with a plurality of inherent plug-in hoisting points as hoisting points during hoisting, and no hoisting point is additionally arranged.

3. According to the ultra-large FPSO pipe gallery module building process, the lower section is transported through the SPMT, the overhanging type transportation auxiliary frame and the cushion pier are used in a matched mode, the transportation space is increased, the strength problem of the whole pipe gallery module transportation is solved, the SPMT can be used for transporting the lower section of the pipe gallery module, compared with the traditional process, the transportation operation amount is reduced, the overhanging type transportation auxiliary frame is of a temporary structure and can be detachably connected with the lower section, and the SPMT can be recycled.

4. The invention relates to a construction process of an ultra-large FPSO pipe gallery module, which designs a standardized cushion pier welded and fixed at the bottom of an upright post, and can be used as a transportation cushion pier when the lower section is transported, and the lower section is lifted to enable SPMT to drive into the bottom of the lower section; the prefabricated cushion pier can be used as a prefabricated cushion pier during lower section prefabrication and a general assembly cushion pier during general assembly, three kinds of cushion piers of conventional projects used in the traditional process are simplified into one kind, the use quantity of the cushion piers is saved, steel materials for prefabricating various cushion piers are reduced, the project cost is reduced, and the construction efficiency is improved.

Drawings

FIG. 1 is a flow chart of the steps of the present invention;

FIG. 2 is a schematic view of the upper and lower sections of the tube lane module;

FIG. 3 is an overhanging transport subframe of the present invention;

FIG. 4 is a schematic view of the construction of a hanging point of the upper segment of the present invention;

FIG. 5 is a schematic view of the pad pier structure of the present invention;

fig. 6 is a schematic view of the installation of the pad pier in the present invention.

The main reference numbers in the figures illustrate:

the method comprises the following steps of 1-pipe gallery module, 2-upper section, 3-lower section, 4-lifting point, 5-transportation space, 6-SPMT, 7-pad pier, 8-overhanging transportation auxiliary frame, 9-first reinforcing plate, 10-second reinforcing plate, 11-horizontal deck plate, 12-upright post, 13-main body, 14-connecting structure, 81-bottom support, 82-vertical support, 83-inclined support, 84-connecting beam, 85-connecting plate, 86-fastening piece and 87-supporting beam.

Detailed Description

The present invention is further described with reference to the following drawings and specific examples so that those skilled in the art can better understand the present invention and can practice the present invention, but the examples are not intended to limit the present invention.

As shown in fig. 1, a process for building an ultra-large FPSO pipe gallery module includes the following steps:

the method comprises the following steps: dividing the pipe gallery module 1 into an upper section 2 and a lower section 3 for prefabrication respectively, prefabricating a pad pier 7, and welding and fixing the pad pier 7 and the lower section 3;

the pipe rack module 1 comprises a plurality of horizontal deck plates 11 and upright columns 12, the upright columns 12 are vertically fixed on two sides of the horizontal deck plates 11 to construct a multilayer frame type structure, and plug-in lifting points 4 for ship installation of the pipe rack module 1 are arranged at the connecting positions of the horizontal deck plates 11 and the upright columns 12 at the top of the upper section 2 and comprise a process pipeline wiring arrangement space, an equipment arrangement space and a personnel channel which are distributed from top to bottom; the lower section 3 of the pipe gallery module 1 is a personnel channel and equipment arrangement space, and comprises four layers, wherein the bottom layer is a personnel channel, the second layer, the third layer and the fourth layer are equipment arrangement spaces, and only the fourth layer is provided with a small amount of pipelines.

Referring to fig. 2, in the specific construction process of the ultra-large FPSO pipe gallery module, the adopted fragmentation mode is two frame-type fragmentations of an upper subsection 2 and a lower subsection 3, the upper subsection 2 and the lower subsection 3 are both in frame-type structures, the structural strength is stronger than that of a structure formed by assembling the traditional single-layer fragmentations, and the upper subsection 2 and the lower subsection 3 are not easy to deform during transportation and hoisting; during final assembly, the vertical column 12 assembly does not need to be carried out for many times, and only the upper subsection 2 and the lower subsection 3 are butted and assembled, so that the number of the vertical column 12 assembly is reduced, and the verticality of the vertical column 12 is more effectively ensured.

The lower section 3 of the pipe gallery module is transported by adopting SPMT5, the area between the horizontal layer deck plate 11 at the bottom of the lower section 3 and the ground is a transportation space 5, a standardized cushion pier 7 is designed and manufactured according to the height difference between the SPMT6 and the height between the bottom surface of the horizontal layer deck plate 11 at the bottom of the lower section 3 and the bottom surface in step 1, and the cushion pier 7 is welded and fixed at the bottom of the upright post of the lower section 3, so that the transportation space 5 is enlarged.

Step two: carrying out sand blasting coating on the upper section and the lower section of the pipe gallery module;

the pipe gallery module 1 is used for being installed on an FPSO ship, and the structure of an offshore platform has higher corrosion resistance requirements, so that each part of the pipe gallery module 1 needs to be subjected to sand blasting coating to ensure the service life of the pipe gallery module; in the invention, the upper subsection 2 and the lower subsection 3 are respectively subjected to sand blasting coating and then are subjected to subsection assembly, so that sand blasting coating operation is facilitated.

Step three: hoisting the upper section 2 of the transport pipe gallery module 1 to the final assembly position, and transporting the lower section 3 to the final assembly position by using the overhanging transport auxiliary frame 8 and the SPMT 6; the standardized cushion pier 7 can be used as a transportation cushion pier for transporting the lower section 3, and the lower section 3 is lifted up to enable the SPMT to be driven into the bottom of the lower section 3; the prefabricated cushion pier can be used as a prefabricated cushion pier during the prefabrication of the lower section 3 and a general assembly cushion pier during the general assembly, three cushion piers of conventional projects used in the traditional process are simplified into one, the use quantity of the cushion piers is saved, the steel material consumption of various prefabricated cushion piers is reduced, the project cost is reduced, and the construction efficiency of the pipe gallery module 1 is improved.

In a preferred embodiment of the present invention, the upper segment 2 of the pipe rack module is integrally hoisted to the final assembly position by using a hoisting device, as shown in fig. 4, the upper segment 2 is provided with a plurality of plug-in hoisting points 4 at the top for integrally hoisting the pipe rack module 1 to a ship, and the hoisting points 4 are used as hoisting points for integrally hoisting the upper segment 2; in particular, the lifting points 4 are provided at the connection points of the horizontal deck plates 11 and the uprights 12 at the top of the upper section 2. The hoisting point 4 of the upper segment 2 is utilized to realize that the hoisting strength meets the hoisting strength requirement of the whole upper segment 2, compared with the traditional process, the temporary hoisting point is avoided being arranged, the welding and cutting procedures of the temporary hoisting point are omitted, and the high-altitude operation risk of cutting and polishing the temporary hoisting point is avoided.

As shown in fig. 3, 5 and 6, the lower section 3 of the pipe rack module is transported using SPMT5, and the transportation steps of the lower section 3 are: symmetrically installing a pair of overhanging auxiliary transportation frames 8 at two sides of the lower section 3; driving the SPMT6 into the transportation space 5; transporting the lower section 3 to a final assembly location; as shown in fig. 6, in the present embodiment, an SPMT6 is disposed below the overhanging auxiliary frame 8 on both sides, and an SPMT6 is disposed below the horizontal deck plate 11 at the bottom of the lower section 3.

Specifically, referring to fig. 3 and 6, the overhanging type transportation auxiliary frame 8 at both sides of the lower section 3 comprises a main body 13 and a connecting structure 14, the main body 13 is fixed with the lower section 3 through the connecting structure 14, the main body 13 comprises a bottom brace 81, a vertical brace 82 and an inclined brace 83, the plane figure formed by connecting the bottom brace 81, the vertical brace 82 and the inclined brace 83 end to end is a right triangle, wherein the vertical brace 82 is parallel to the upright post 12, and the lower surface of the bottom brace 81 is flush with the bottom surface of the horizontal deck plate 11 at the bottom of the lower section 3.

Further, in the embodiment of the invention, the bottom brace 81, the vertical brace 82 and the inclined brace 83 are all H-shaped steel, the first reinforcing rib plate 9 is arranged at the connecting position of the inclined brace 83 and the bottom brace 81, the connecting beam 84 is fixedly arranged at the connecting position of the inclined brace 83 and the vertical brace 82, and the connecting beam 84 is H-shaped steel parallel to the bottom brace 81.

Further, the connecting structure 14 includes a connecting plate 85, a fastening member 86 and two supporting beams 87, the supporting beams 87 are H-shaped steel, two supporting beams 87 are vertically fixed on the upright 12 and extend out towards the vertical support 82, one supporting beam 87 is butted with the bottom support 81 and fixed by the connecting plate 85 and the fastening member 86, and the other supporting beam 87 is butted with the connecting beam 84 and fixed by the connecting plate 85 and the fastening member 86.

Further, the fastening member 86 is a bolt and a nut, so that the overhanging type transportation auxiliary frame 8 can be detachably connected with the lower section 3, and the overhanging type transportation auxiliary frame 8 can be recycled.

Further, referring to fig. 5, the standardized pad pier 7 of the present invention comprises two sections of H-section steel stacked and fixed together, in this embodiment, the upright post 12 is made of H-section steel, the material of the pad pier 7 is the same as that of the upright post 12, and according to fig. 5, the pad pier 7 further comprises a reinforcing rib plate, and the second reinforcing rib plate 10 is arranged in the vertical direction to improve the supporting strength of the pad pier 7.

According to a preferred embodiment of the invention, the transportation space 5 is increased by the overhanging type transportation auxiliary frame 8 and the pad piers 7, and the plurality of SPMT6 are adopted to transport the lower subsection 3 together, so that the strength problem of the transportation of the whole pipe gallery module 1 is solved, the SPMT6 can be used for transporting the lower subsection 3 of the pipe gallery module 1, compared with the traditional process, the transportation workload is reduced, the problem of occupation and waste of a large amount of transportation resources caused by the large transportation workload is solved, the transportation efficiency is improved, and the transportation cost is reduced.

Step four: the upper section 2 and the lower section 3 of the pipe rack module 1 are assembled.

The upper subsection 2 and the lower subsection 3 can be assembled after being respectively transported to the assembly position, the upper subsection 2 is hoisted and placed on the upper portion of the lower subsection 3 after the lower subsection 3 is positioned, and the upright columns 12 of the upper subsection 2 and the upright columns of the lower subsection 3 are fixedly butted one by one, so that the upper subsection 2 and the lower subsection 3 are connected into a whole.

The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitution or change made by the technical personnel in the technical field on the basis of the invention is all within the protection scope of the invention. The protection scope of the invention is subject to the claims.