CN106114754B - The method that oil tanker repacks FPSO into - Google Patents

Abstract

The invention discloses a kind of method that oil tanker repacks FPSO into, including S1000：Multipoint mooring cable stopper dependency structure building technology, S2000：The building technology of transfer platform, S3000：Flare tower building technology, S4000：The hoisting and S5000 of crane superstructure：In the building technology of the pillar of seawater lift pump, above-mentioned technique to the closing up of pipeline section, splice and butt-joint process can simultaneously and concurrently be constructed using the technique and above-mentioned technique that are symmetrically welded.The oil tanker of the present invention repacks the human resources that FPSO method makes full use of existing welding equipment, hanging device and precision measure equipment etc., scientific allocation to have correlation technique ability into, so that efficiency of construction is high, construction cost is low and the construction quality of each subsystem meets the running standards of FPSO ships, the construction quality of FPSO ships is effectively ensured and then effectively extends the rework time node of FPSO ships.

Description

The method that oil tanker repacks FPSO into

Technical field

The present invention relates to ship domain, more particularly to a kind of method that oil tanker repacks FPSO into.

Background technology

Floating type production, storage and offloading device (Floating Production Storage and Offloading, below Referred to as " FPSO ") be used as " offshore oil factory ", can by the mixed liquors such as the oil gas water from sub-sea drilled wells by working process into Qualified crude oil or natural gas storing are conveyed to the oil of shuttle when reserves reach to a certain degree in oil cargo tank by outer defeated system Wheel, it is convenient to provides power for marine oil tanker, with capacity of anti-storm it is strong, adapt to depth of water scope deeply, storage/emptying ability greatly Advantage, is widely used in the deep-sea away from seashore and the exploitation of marginal oil field.

FPSO mainly include anchoring system, oil vapor treatment system, flare tower exhaust treatment system, crane Lift-on/Lift-off System and Seawater lift processing system, these system independent works and be indispensable module on FPSO ships.Oil tanker is repacked into FPSO construction technology will inevitably be related to construction or repacking for said system.

Multi-buoy mooring system is that mooring system has multiple contact points with hull, and wherein mooring system is filled including multigroup mooring Put, the mooring gear includes being fixed on playing chain apparatus, being fixed on the cable stopper of hull sides, with cable stopper consolidate for hull upper end Surely the guide chain pipe and mooring cable connected, the mooring cable is after chain apparatus is drawn from described, around being located on the cable stopper and lead to Cross the guide chain piping pool seabed.The cable stopper system generally includes the connection member of cable stopper, is fixed in connection member Lead cable axle and anchor chain guide wheel.If the cable stopper system when installing first by the connection member of cable stopper and upper support member and Lower support member is fixedly connected, then guide chain pipe is fixed on after cable stopper seat, and integral hoisting is welded on ship hull plate, then When fixed because cable stopper is installed, not only need to consider that whole cable stopper is fitted in the position of ship hull plate and with ship hull plate Degree, it is also contemplated that position and angle between the angle of the Kong Yuqi chain apparatus that snubs the chain of cable stopper, guide chain Guan Yuqi chain apparatus The problems such as, the difficulty of integral hoisting welding will be increased, increase the requirement to instrument and equipment；And during integral solder, position and angle The regulation difficulty of degree is big, also considerably increases workload, expends substantial amounts of manpower and materials.

Sub-sea drilled wells are connected by the transfer platform in oil vapor treatment system by flexible pipe with drilling platforms, realize the defeated of crude oil Enter, process, store and export.Transfer platform generally includes to be fixed on the upper transfer platform of ship hull plate side and lower transfer platform； The upper transfer platform and lower transfer platform are generally made up of bottom plate, top plate, supporting plate and pipe.Transfer platform is used as FPSO weights The part wanted, transfer platform and lower transfer platform are built thereon stability and the accuracy of construction precision, with most important Effect.

Flare tower (Flare stack) is a kind of device that waste gas is handled in high-altitude open burning mode, and it is marine Visual plant in hydrocarbon production system.General flare tower, which is built, to be needed to consider the feature of environmental protection and security, therefore all high to tower body Degree has specific demand, and flare tower main composition includes：Three root posts vertically, the horizontal or oblique multistage for connecting each column are tiltedly Support.Such large torch tower has that tonnage is big, center of gravity is high, irregular structure, steel construction are dealt with improperly and be easily deformed or be broken The characteristics of, the traditional construction mode of flare tower is that each constructed main segmentation is built on ground, is then lifted into main segmentation respectively Simultaneously docked in high-altitude in high-altitude.Such mode of construction needs to build very high scaffold, not only increases cost, substantial amounts of height Idle job is also dangerous.Meanwhile, it is each to spell if main segmentation is oversize, it is necessary to build several splice sections to be spliced into main segmentation The splicing process for connecing section directly determines the structural strength of main segmentation, and then also determines the structural strength of flare tower.

Crane (Crane) is also known as loop wheel machine peculiar to vessel or ship's crane, is a kind of big deck machinery on ship, and it is a kind of Installed in the equipment of the handling goods of board.Crin is hung mainly to be made up of stack shell, operating platform, main arm and joint arm, Operating platform is assemblied on stack shell by the flange assembly of its bottom, operating platform and main arm lateral connection, and main arm is with closing Arm lateral connection is saved, operating platform, main arm and joint arm collectively form the superstructure of crane.The routine of crane Hanging method is：Stack shell is first installed above deck, is then lifted operating platform and is docked with stack shell, finally lifts main arm and pass Section arm is docked with operating platform.This method for lifting and docking assembling in the air should ensure the flange water in horizontal direction It is flat, ensure that the flange in vertical direction is vertical again, could smoothly dock.But, lifting precision each time is all by wind-force etc. The influence of environmental factor and be difficult to control, the difficulty that assembling is docked in the air is very big, and often the construction period of hoisting process is all Longer, cost is also larger.

Seawater lift pump belongs to seawater lift processing system, and it works under sea level and lifts seawater by lifting pipe Onto FPSO platform, it provides cooling water and industrial water for the other equipment on FPSO.Due to the long-term work of seawater lift pump Make inside seawater, to ensure its stable work in work, generally to build one section of pillar and allow seawater lift pump to be fixed on pillar Tube chamber bottom work, so be able to can effectively slow down seawater lift pump operating when vibration and be avoided that twining for marine organisms Around.Because the pillar inner chamber of seawater lift pump needs to install the miscellaneous parts such as seawater lift pump, sea water purifier, so building When higher is required to the circularity and linearity of the pillar of seawater lift pump, simultaneously because the pillar bottom work inside seawater throughout the year Make, so needing the special anti-corrosion protection of comparison.And the conventional construction of pipeline section and hoisting are all integrally to build and lift, this The external coating of the unavoidable pillar that seawater lift pump is collided and damaged in work progress, in addition can influence the circularity of pillar with it is straight Dimension, does remediation, the total quality of the pillar of seawater lift pump will have a greatly reduced quality again after the damage that such as collides.Shield Pipe is damaged after deformation, and its efficiency of construction of secondary construction and the antiseptic effect of secondary application that the later stage is carried out on hull are also by serious Influence, this virtually adds the maintenance cost in construction cost and later stage.

The content of the invention

The invention reside in the shortcoming and deficiency for overcoming prior art, there is provided a kind of method that oil tanker repacks FPSO into.

The present invention is achieved by the following technical solutions：The method that oil tanker repacks FPSO into, including following repacking work Skill：

S1000：Multipoint mooring cable stopper dependency structure building technology, comprises the following steps：

Step S1001：Ship hull plate sidepiece is strengthened and consolidated；The step S1001 includes：

Step S1011：A reinforcement platform is fixed along ship hull plate sidepiece；The reinforcement platform includes being arranged on ship hull plate The first reinforcement platform on the upside of sidepiece strengthens platform with second be arranged on the downside of ship hull plate, strengthens described second on platform Stiffener assembly and lower stiffener assembly in setting；

Step S1012：Upper support component is fixed on the upper stiffener assembly, by lower supporting assembly be fixed on it is described under On stiffener assembly；

Step S1002：The connection member card of cable stopper is set and is fixed between upper support component and lower supporting assembly In screens；

S2000：The building technology of transfer platform, the step comprises the following steps：

Step S2001：Sectional construction：Upper transfer platform is divided into multiple upper segmentations, by lower transfer platform be divided into it is multiple under Segmentation, builds to each segmentation；

Step S2002：Lifting positioning is carried out to upper segmentation and is welded and fixed：Split fix line in delimitation, by each upper segmentation Lift and be weldingly fixed on the upside of ship hull plate；

Step S2003：Lifting positioning is carried out to lower segmentation and is welded and fixed：Lower split fix line delimited, by each lower segmentation Lifting is closed up and is weldingly fixed on the downside of ship hull plate；

S3000：Flare tower building technology, comprises the following steps：

S3001：Build four main segmentations；Wherein, each main segmentation is built to comprise the following steps：

S3011：First group of seven splice sections is built, second group of seven splice sections is built, the 3rd group of seven splice sections are built；

S3012：First group of seven splice sections are spliced into the first column, wherein the piece per two neighboring splice sections is welded Area is all out-of-line, second group of seven splice sections are spliced into the second column, wherein the spelling per two neighboring splice sections Seam weld area is all out-of-line, the 3rd group of seven splice sections are spliced into the 3rd column, wherein per two neighboring splice sections Piece welding zone it is all out-of-line；

S3013：Build some diagonal braces, the diagonal brace can be horizontal or oblique be connected to first column, the second column, Into multistage truss framework between three columns, the diagonal brace, the first column, the second column, the 3rd column are assembled into main segmentation together；

S3002：The corresponding column of four main segmentations is docked respectively and constitutes complete flare tower；

S4000：The lifting of crane superstructure, wherein the crane superstructure includes operating platform, main arm And joint arm, the operating platform and main arm lateral connection, the main arm and joint arm lateral connection and main arm Initial angle with joint arm is into obtuse angle, and the superstructure is divided into by the superstructure overall length 41531mm, its center of gravity 12531mm and 29000mm left part and right part, the hoisting of the crane superstructure comprises the following steps：

S4001：Main lifting rope is installed in superstructure, the upper end of the main lifting rope is connected with the suspension ring on crane barge arm, The main lifting rope includes the first lifting rope group and the second lifting rope group, and the first lifting rope group is located at 6834mm on the left of the center of gravity of superstructure Place, the second lifting rope group are located at the height that crane barge arm is then adjusted on the right side of the center of gravity of superstructure at 6834mm so that institute State the initial lifting angle that the first lifting rope group forms one 10 ° with the second lifting rope group；

S4002：The mounting and adjusting rope group in superstructure, the adjustment rope group includes the of a binding on the operational platform One adjustment rope and the second adjustment rope for being bundled in the joint boom tip；

S4003：Integral lifting superstructure and the angle for adjusting main arm and joint arm in the air, due to crane barge arm The rings height on top is fixed, with the slow rising of the superstructure, and the initial lifting angle is accordingly incrementally increased, and works as institute When stating initial lifting angle and reaching 12 °, the hydraulic selector started on the operating platform withdraws the joint arm so that described The initial angle of main arm and joint arm narrows down to an acute angle by obtuse angle；

S4004：Dock superstructure, when the superstructure continue to hang rise to it is described it is initial lifting angle be 28 ° when, manually Commander's hull positioning is docked in the underface of the superstructure, then slowly declines the superstructure to the initial lifting angle Spend for 20 ° when, pull the first adjustment rope and the second adjustment rope so that the arm bracket on the main arm alignment deck, And allow the superstructure to be placed on arm bracket, then by the stack shell flange in the lower end flanges of the operating platform and deck Docking, finally unlocks the first adjustment rope, the second adjustment rope, the first lifting rope group and the second lifting rope group；

S5000：The pillar of the building technology of the pillar of seawater lift pump, wherein seawater lift pump is divided into from top to bottom First base segment to hendecyl section, first base segment to the tenth base segment and a top flange collectively forms the seawater lift pump The superstructure of pillar, hendecyl section and a flange in the bottom collectively form the substructure of the pillar of the seawater lift pump, sea The building technology of the pillar of water elevator pump, comprises the following steps：

S5001：The superstructure and substructure of the pillar of seawater lift pump are built respectively, and step S5001 includes following Step：

S5011：Substrate is rolled into 11 tubular base segments respectively with veneer reeling machine, and is designated the first base segment to the 11st Base segment, each of which part base segment is during roll bending, regularly using the internal diameter 120 degree sectors equal with the pillar of seawater lift pump Frock carrys out the crooked radian of inspection substrate；After each base segment completes, the shield of the seawater lift pump is slightly less than with internal diameter The annular frock of the internal diameter of pipe detects the circularity of base segment；

S5012：Base segment longitudinal slot is welded, and the longitudinal slot in the S11 on base segment tube wall is processed into weldering by the step Connect groove and sealing weld forms it into longitudinal measure zone, the sealing weld technique of the longitudinal measure zone is：A) the outer groove of base segment pipe Spot welding → b) base segment pipe external application outer arc shape code plate interval is positioned side by side → c) welding base segment pipe internal groove → d) remove the outer arc Shape code plate → e) base segment pipe outside weld catching groove → f) in pipe with inner arc shape code plate interval it is positioned side by side → g) the outer slope of welding base segment pipe Mouthful；

S5013：Base segment is spliced into splice sections, splice sections and is butted into trunnion, and the step is first by the second base segment to the 4th base segment Coaxially being spliced into the first splice sections, the 5th base segment to the 7th base segment is coaxially spliced into the second splice sections, the 8th base segment to the tenth base Section is coaxially spliced into the 3rd splice sections, then the first splice sections, the second splice sections, the 3rd splice sections are coaxial docking into a trunnion, The longitudinal measure zone of adjacent two pieces base segment staggers 180 degree in the axial direction in the step；

S5014：Top flange, the first base segment, trunnion is integrally welded, formed the seawater lift pump pillar it is upper Portion's structure；Bottom flange, hendecyl section is integrally welded, form the substructure of the pillar of seawater lift pump；

S5015：On the outer wall of the superstructure successively interval welding the first platform, the second platform, the 3rd platform and 4th platform, square first platform, the second platform, the 3rd platform and the 4th platform entangles the superstructure vertically Outer wall；

S5016：Respectively to the superstructure, substructure and the first platform, the second platform, the 3rd platform, Siping City Platform painting anticorrosion coating；

S5002：The substructure of the pillar of seawater lift pump is positioned on the reserved location of hull, and lifts superstructure It is interfaced；

S5003：First platform is docked with main ship deck；Second platform is docked with hull two-layer platform；Institute Three layers of platform of the 3rd platform and hull are stated to dock；Four layers of platform of 4th platform and hull are docked.

Further, the step S1002 includes：

Step S1021：Guide chain pipe is fixedly connected with the connection member of cable stopper；

Step S1022：By cable stopper hanging on ship hull plate sidepiece, and the connection member of cable stopper is set to be fastened on support In screens between component and lower supporting assembly；

Step S1023：The connection member of cable stopper is fixedly connected with upper support component and lower supporting assembly respectively, wrapped Include：

Step S1231：Cable stopper is led into cable axle vertically hanging on the top of upper support component；

Step S1232：By cable stopper lead cable axle sequentially pass through from top to bottom the upper support component, cable stopper connection Part and lower supporting assembly；

Step S1233：The cable axle of leading of cable stopper is welded and fixed with upper support component and lower supporting assembly, and then will be snubbed the chain The connection member card of device, which is set, to be fixed on the upper support component and lower supporting assembly.

Further, in the step S1011, the platform of strengthening includes being arranged on the second reinforcement on the downside of ship hull plate Platform；Described second, which strengthens platform, includes the second reinforcement outside plate, upper stiffener assembly and lower stiffener assembly；Described second strengthens outside plate The ship hull plate sidepiece is fixedly welded on, and is fitted with ship hull plate；The upper stiffener assembly is parallel with lower stiffener assembly Set, and strengthen with described second that outside plate is vertical fixes；The upper stiffener assembly includes the first reinforcing plate and the second reinforcing plate；Institute The one end for stating the first reinforcing plate and the second reinforcing plate is passed perpendicularly through in the second reinforcement outside plate and ship hull plate, embedded hull simultaneously Fixed with hull, the other end protrudes from described second and strengthens outside plate, for being fixedly connected with the upper support member；Add under described Strong component includes the 3rd reinforcing plate and the 4th reinforcing plate；One end of 3rd reinforcing plate and the 4th reinforcing plate passes perpendicularly through described Second strengthens in outside plate and ship hull plate, embedded hull and is fixed with hull；The other end protrudes from described second and strengthens outside plate, uses It is fixedly connected in the lower support member；First reinforcing plate, the second reinforcing plate, the 3rd reinforcing plate and the 4th reinforcing plate with Second strengthens between outside plate, hull, and is fixed between the second reinforcement outside plate and hull using X-type groove full penetration；

In the step S1012, the central axis of the upper support component and lower supporting assembly is on the same line.

Further, in the step S2000,

When upper segmentation each to upper transfer platform is built, comprise the following steps：

Step S2111：Upper plate is fixed on upper moulding bed；

Step S2112：Upper support fixture provided with multiple upper through holes is weldingly fixed on upper plate；

Step S2113：Multiple upper pipes are each passed through into the upper through hole to be fixed on upper plate；

Step S2114：The two ends end of epipleural is fixedly connected with upper plate and upper support fixture respectively；

When lower segmentation each to lower transfer platform is built, comprise the following steps：

Step S2121：Lower shoe is fixed on lower moulding bed；

Step S2122：Lower support fixed plate is fixed on lower shoe；

Step S2123：Lower roof plate is fixedly connected with lower support fixed plate；The lower roof plate is provided with multiple lower through-holes；

Step S2124：Multiple lower pipes are each passed through into the lower through-hole to be fixed on lower shoe；

When lifting positioning is carried out to the upper segmentation of upper transfer platform, comprise the following steps：

Step S2211：Multiple upper limit plates are installed on ship hull plate；

Step S2212：Every grade of rib position surplus of segmentation is determined according to the ship hull plate line style data of measurement, with laser at each point Mowing surplus after being rule in section, is cut, groove of having been polished after cutting using pattern；

Step S2213：By segmental hoisting, so that the lower end of segmentation is placed at mounted upper limit plate；

Step S2214：The first deck level is marked on ship hull plate examine rib bit trial line before line, first with total powerstation With the first aft rib bit trial line, to examine the positioning of segmentation whether accurate；

Step S2215：Examine line as baseline using the first deck level, taken a little in the upper surface of upper segmentation, and adjust segmentation Position, make the difference of the upper surface examine the vertical range of line identical away from the first deck level；Two before and after upper segmentation Taken a little respectively on end face, and adjust the position of segmentation, make the horizontal range of the difference of front end face away from rib bit trial line before first It is identical, and make horizontal range of the difference away from the first aft rib bit trial line of rear end face identical；

When welding is fixed to the upper segmentation of upper transfer platform, comprise the following steps：

Step S2221：Multiple first are installed on the upside of ship hull plate and draws code；

Step S2222：Installed in upper segmentation it is multiple draw code-phase corresponding second to draw codes with first, this first draws code and the Two draw code on same rib bit line；

Step S2223：By drawing code screw to be fixedly connected with the first drawing code and the second drawing code, and then by upper transfer platform Upper segmentation be fixed on the upside of ship hull plate；

Step S2224：Side of being fitted in upper segmentation with ship hull plate sets pad on multiple, by pad on this and ship External plate weld is fixed；

When lifting positioning is carried out to the lower segmentation of lower transfer platform, comprise the following steps：

Step S2311：Multiple lower limiting boards are installed on ship hull plate, high-order support frame is installed on ground；

Step S2312：Lower every grade of rib position surplus of segmentation is determined according to the ship hull plate line style data of measurement, with laser each Mowing surplus after being rule in lower segmentation, is cut, groove of having been polished after cutting using pattern；

Step S2313：The second deck level is marked on outside plate with total powerstation and examines before line, second rib bit trial line and the Two aft rib bit trial lines；

Step S2314：By lower segmental hoisting, so that the lower end of lower segmentation is placed at mounted lower limiting board, and pass through One high-risk support frame holds the lower segmentation；

Step S2315：Examine line as baseline using the second deck level, taken a little in the upper surface of lower segmentation, and adjust lower point The position of section, makes the difference of the upper surface examine the vertical range of line identical away from the second deck level；Before and after lower segmentation Taken a little respectively in both ends of the surface, and adjust the position of lower segmentation, make the level of the difference of front end face away from rib bit trial line before second Apart from identical, and make horizontal range of the difference away from the second aft rib bit trial line of rear end face identical, and make the upper circle of segmentation Pipe and the lower pipe of lower segmentation are in same vertical straight line；

When welding is fixed to the upper segmentation of lower transfer platform, comprise the following steps：

Step S2321：Multiple three are installed on the downside of ship hull plate and draws code；

Step S2322：Installed in upper segmentation it is multiple draw code-phase the corresponding 4th to draw codes with the 3rd, the 3rd draws code and the Four draw code on same rib bit line；

Step S2323：By drawing code screw to be fixedly connected with the 3rd drawing code and the 4th drawing code, and then by upper transfer platform Lower segmentation be fixed on the downside of ship hull plate；

Step S2324：Side of being fitted in lower segmentation with ship hull plate sets multiple lower pads, by the lower pad with Ship hull plate is welded and fixed；Meanwhile, under multiple side pads are set, will be each by the side pad in the two ends end of lower segmentation Segmentation connecting welding is fixed.

Further, the upper plate is tilted to side；The upper limit plate is also accordingly tilted to side, the upper limit The position inclined angle of plate is consistent with the inclined angle of upper plate, and is fitted with the lower surface of the upper plate；The upper support Fixture passes through CO with upper plate, upper pipe and upper plate, upper pipe and upper support fixture₂The mode of welding is welded solid It is fixed；The lower supporting plate passes through CO with lower shoe, lower pipe and bottom plate, lower pipe and lower supporting plate₂The mode of welding is welded It is fixed.

Further, in the step S3012,

Piece welding zone between the first splice sections and the second splice sections of first column mutually staggers 180 °；

Piece welding zone between the second splice sections and the 3rd splice sections of first column mutually staggers 90 °；

Piece welding zone between 3rd splice sections of the first column and the 4th splice sections mutually staggers 90 °；

Piece welding zone between 4th splice sections of the first column and the 5th splice sections mutually staggers 180 °；

Piece welding zone between 5th splice sections of the first column and the 6th splice sections mutually staggers 90 °；

Piece welding zone between 6th splice sections of the first column and the 7th splice sections mutually staggers 90 °；

Piece welding zone between the first splice sections and the second splice sections of second column mutually staggers 180 °；

Piece welding zone between the second splice sections and the 3rd splice sections of second column mutually staggers 90 °；

Piece welding zone between 3rd splice sections of the second column and the 4th splice sections mutually staggers 90 °；

Piece welding zone between 4th splice sections of the second column and the 5th splice sections mutually staggers 180 °；

Piece welding zone between 5th splice sections of the second column and the 6th splice sections mutually staggers 67.5 °；

Piece welding zone between 6th splice sections of the second column and the 7th splice sections mutually staggers 70 °；

Piece welding zone between the first splice sections and the second splice sections of 3rd column mutually staggers 180 °；

Piece welding zone between the second splice sections and the 3rd splice sections of 3rd column mutually staggers 90 °；

Piece welding zone between the 3rd splice sections and the 4th splice sections of 3rd column mutually staggers 90 °；

Piece welding zone between the 4th splice sections and the 5th splice sections of 3rd column mutually staggers 180 °；

Piece welding zone between the 5th splice sections and the 6th splice sections of 3rd column mutually staggers 90 °；

Piece welding zone between the 6th splice sections and the 7th splice sections of 3rd column mutually staggers 72.5 °；

In the step S3013,

The first column is first assembled, the diagonal brace between the first column and the second column is reconnected, reassembles the second column, then The diagonal brace between the diagonal brace and the second column and the 3rd column between the first column and the 3rd column is connected, the 3rd is finally assembled and stands Post；

In the step S3000,

The docking of the splicing of splice sections and main segmentation was both splicing round mouth or was docking round mouth using technique is symmetrically welded Welded on symmetric points；Wherein flare tower overall length 117m, the first main sector boss 8525mm, the second main sector boss 34825mm, Three main sector boss 38725mm, the 4th main sector boss 35125mm.

Further, in the step S4001, the first lifting rope group includes the first lifting rope and the second lifting rope, described the One lifting rope and the second lifting rope are connected to the front and back of the superstructure, are set between first lifting rope and the second lifting rope Strip chock is put so that the first lifting rope and the second lifting rope 15 angles ° of formation；The second lifting rope group includes the 3rd lifting rope and the Four lifting ropes, the 3rd lifting rope and the 4th lifting rope are connected to the front and back of the superstructure, the 3rd lifting rope and Strip chock is set to cause the 3rd lifting rope and the 4th lifting rope 15 angles ° of formation between 4th lifting rope；

In the step S4003, the acute angle is 75 °；

In the step S4004, the first adjustment rope and the second adjustment rope are first unlocked, the is then sequentially unlocked One lifting rope, the 3rd lifting rope, the second lifting rope, the 4th lifting rope；

The first adjustment rope, the second adjustment rope, the first lifting rope, the second lifting rope, the 3rd lifting rope and the 4th lifting rope are tensions Intensity is not less than 20 tons of lifting rope.

Further, in the step S5013,

In the step S5013, splicing welding is carried out to base segment or splice sections are carried out before butt welding, is surveyed using steel wire is drawn The mode of straight line ensures the linearity of trunnion being made, and both the tube wall at some base segment two of the coaxial placement of level was justified 0 ° of arc, 90 °, determine to draw a steel wire between three groups of datum marks, and every group of datum mark of correspondence respectively on 180 ° of positions, pass through spacing Whether measuring steel wire determines the depth of parallelism of each base segment with the distance of base segment tube wall, and then determine the axle center of each part base segment same On straight line, such as the linearity margin of tolerance exceeds ± 2mm, then corrects the placement posture of base segment；

In the step S5013, when splicing welding or splice sections progress butt welding are carried out to base segment, first by the base segment mouth of pipe It is processed into welding groove and sealing weld forms it into annular solder zone, the sealing weld technique of the annular solder zone is：H) base segment The outer annular groove spot welding → i of pipe) base segment pipe external application outer arc shape code plate interval is positioned side by side → j) welding base segment pipe annular groove → k) remove the outer arc shape code plate → l) the outer circular weld catching groove → m of base segment pipe) the interior use inner arc shape code plate interval of base segment pipe is simultaneously Be ranked position → n) the outer groove of welding base segment pipe；The step j) and n) in, when being welded to circular weld, using the side being symmetrically welded Formula, was both synchronously welded on the axial symmetry point of the annular solder zone；

In the step S5000, the outer arc shape code plate is the square plate of one side arc-shaped recess, its circular arc internal diameter and institute The pillar for stating seawater lift pump is equal, and the distance on its arc top to one side corresponding thereto being recessed is not less than 200mm；The inner arc Shape code plate is the square plate of one side arc evagination, and its circular arc internal diameter is equal with the pillar of the seawater lift pump, its evagination The distance on arc top to one side corresponding thereto is not less than 200mm.

Further, in reforming technology to the closing up of pipeline section, splice and butt-joint process is using the technique being symmetrically welded, both Welded successively on the symmetric points of pipeline section round mouth.

Further, the S1000 multipoint moorings cable stopper dependency structure building technology, the construction of S2000 transfer platforms Technique, S3000 flare towers building technology, the hoisting of S4000 crane superstructures, the pillar of S5000 seawater lift pumps Building technology can simultaneously and concurrently construct.

Compared to prior art, the method that oil tanker of the invention repacks FPSO into makes full use of existing welding equipment, hung Installing standby and precision measure equipment etc., scientific allocation has the human resources of correlation technique ability so that efficiency of construction is high, be constructed into The construction quality of this low and each subsystem meets the running standard of FPSO ships, and the construction quality and then effectively of FPSO ships is effectively ensured Extend the rework time node of FPSO ships, be embodied in：

S1000 multipoint mooring cable stopper dependency structure building technology, strengthens platform by being set in ship hull plate, makes Support component and lower supporting assembly are fixed on ship hull plate by the reinforcement platform, then the connection member of cable stopper is fixed on In upper support component and lower supporting assembly, it is ensured that the firm installation of cable stopper and hull.By the way that platform and upper support will be strengthened Component, lower supporting assembly are assembled apart and built, and make construction processing more precisely flexible.Further, support group is first installed Part and lower supporting assembly, make it behind the position of setting, then install fixed cable stopper, and the mode that this substep is installed is big generous Adjustment to each module position and angle, it is ensured that cable stopper installation site and angle are in claimed range；By After the connection member of cable stopper is fastened in screens, cable axle will be led and hang vertically vertical, it is sequentially passed through the upper branch from top to bottom Support component, the connection member of cable stopper and lower supporting assembly, and then make to lead cable axle and the upper support component, the connection of cable stopper Part and lower supporting assembly are fixed, it is ensured that cable stopper and upper support component and lower supporting assembly are fixedly connected；

The building technology of S2000 transfer platform, by carrying out sectional construction to upper transfer platform and lower transfer platform, determining Position, lifting and weld, it is more firm firm to make to build the transfer platform come, more stablizes；By to upper transfer platform and under Transfer platform carries out sectional construction, positioning, lifting and welded, and makes the transfer platform built more firm firm, more surely It is fixed；Further, the method by lifting positioning, it is ensured that transfer platform is precisely fixed on the position of setting；

S3000 flare tower building technology, only need to be in ground construction, the hand without building work high above the ground during construction flare tower Foot stool, not only construction cost is low, construction duration is short, it is thus also avoided that the potential safety hazard that work high above the ground is brought；The spelling of contiguous concatenation section Seam weld area mutually staggers certain angle, it is to avoid piece welding zone causes main segmental structure fragile in line, is more beneficial for ensureing fire The structural strength of torch tower；First column, the second column, the 3rd column and diagonal brace are progressively assembled from the bottom to top, are easily controlled diagonal brace Cutting accuracy, efficiency of construction is high；The docking of the splicing of splice sections and main segmentation uses and is symmetrically welded technique, it is to avoid welded There is stress deformation in journey and influence structural strength；

The lifting of S4000 crane superstructure, is hung the superstructure of crane as a global facility Dress, reduces lifting number of times, is easily controlled lifting precision；Whole hoisting process need to only adjust the equivalent angle of joint arm in the air Degree, can just control and adjust the levelness of operating platform flange in the bottom；Effectively reduce the installation period of crane and lift into This, while reducing the potential safety hazard of workman's work high above the ground presence；

The construction of the pillar of S5000 seawater lift pump and hoisting, the pillar of seawater lift pump are split up into longer Superstructure built with shorter substructure two parts, lifting is carried out after the completion of construction again and is closed up, superstructure length Up to 30m, substructure only has 3m or so, superstructure and the special anticorrosive paint of the equal application of substructure, such length point Section design can be avoided farthest after the overall application of pillar structure, occurred to paint damaged in hoisting process, effectively reduced weight Overcoating fills the duration；The substructure of pillar is needed to install the miscellaneous parts such as seawater lift pump outside its intracavitary, is designed to close to dock bottom Short tube can both facilitate the fixed and positioned of pillar entirety and other equipment, also reduce carried out after pillar structure installation it is local The difficulty of touch-up paint；Further, the building course of base segment pipe measures pipe using easy fan-shaped frock and annular frock Circularity, not only simple and convenient but also can reach precision controlling requirement, trunnion building course is using drawing the method for steel wire to control trunnion Linearity, these easy devices for whipping desirable and method can reach that the required precision of pillar can be reduced effectively again and be produced into This.

In order to more fully understand and implement, the invention will now be described in detail with reference to the accompanying drawings.

Brief description of the drawings

Fig. 1 is that multipoint mooring cable stopper dependency structure of the present invention builds flow chart；

Fig. 2 is the overlooking the structure diagram of anchoring system of the present invention；

Fig. 3 is the side structure schematic diagram of one of which anchoring system shown in Fig. 2；

Fig. 4 is the structural representation of 1-A parts shown in Fig. 3；

Fig. 5 is the schematic diagram before multipoint mooring cable stopper dependency structure of the present invention is built；

Fig. 6 is the installation procedure figure of step S1001 shown in Fig. 1；

Fig. 7 is the structural representation of the second reinforcement platform；

Fig. 8 is the structural representation of upper support component and lower supporting assembly；

Fig. 9 is the installation procedure figure of step S1002 shown in Fig. 1；

Figure 10 is the installation procedure figure of step S1023 shown in Fig. 9；

Figure 11 is the schematic diagram after multipoint mooring cable stopper dependency structure of the present invention is built；

Figure 12 is the structural representation of transfer platform of the present invention；

Figure 13 is the construction flow chart of transfer platform of the present invention；

Figure 14 is the construction flow chart of each upper segmentation of transfer platform in the present invention；

Figure 15 is the part-structure schematic diagram being segmented in the present invention on transfer platform；

Figure 16 is the overall structure diagram being segmented in the present invention on transfer platform；

Figure 17 is the overall structure diagram being segmented under transfer platform under the present invention；

Figure 18 is the positioning figure of the upper segmentation of upper transfer platform；

Figure 19 is the side view being segmented on upper transfer platform；

Figure 20 is the sectional view being segmented on upper transfer platform；

Figure 21 is the welding schematic diagram being segmented on upper transfer platform；

Figure 22 is the positioning figure of the lower segmentation of lower transfer platform；

Figure 23 is the side view being segmented under lower transfer platform；

Figure 24 is segmentation pad setting structure schematic diagram under lower transfer platform；

Figure 25 is the structural representation after segmentation welding under lower transfer platform.

Figure 26 be the present invention large torch tower building technology in flare tower stepwise schematic views.

Figure 27 is the structural representation of the main segmentations of 3-B2 in Figure 26.

Figure 28 is the building technology schematic diagram of splice sections 3-B21-1 in Figure 27.

Figure 29 is each splice sections splicing process schematic perspective view.

Figure 30 is each splice sections splicing process schematic top view.

Figure 31 is main block assembly schematic diagram in Figure 26.

Figure 32 is the structural representation of crane superstructure in this case.

Figure 33 is the main lifting rope scheme of installation of the hoisting of crane superstructure of the present invention.

Figure 34 is the lifting schematic diagram of the hoisting of crane superstructure of the present invention.

Figure 35 is the assembling schematic diagram of crane superstructure in this case

Figure 36 is the structural representation of the pillar of the seawater lift pump of the present invention.

Figure 37 is the structural representation of arc frock in the present invention.

Figure 38 is the structural representation of annular frock in the present invention.

Figure 39 is base segment butt-joint process schematic diagram in the present invention.

Figure 40 is the structural representation of outer arcuate code plate in the present invention.

Figure 41 is the structural representation of inner arc shape code plate in the present invention.

Figure 42 is the sealing weld process schematic representation of longitudinal measure zone in the present invention.

Embodiment

The method that the oil tanker of the present invention repacks FPSO into, including following reform technology：Multipoint mooring cable stopper correlation knot Structure make and hoisting, the building technology of transfer platform, flare tower building technology, the hoisting of crane superstructure and The building technology of the pillar of seawater lift pump, the embodiment of each above-mentioned FPSO reform technology described separately below.

The multipoint mooring cable stopper dependency structure is built and hoisting：

Fig. 1 to Fig. 5 is referred to, Fig. 1 is that multipoint mooring cable stopper dependency structure of the present invention builds flow chart；Fig. 2 is this hair The overlooking the structure diagram of bright anchoring system；Fig. 3 is the side structure schematic diagram of one of which anchoring system shown in Fig. 2；Fig. 4 is The structural representation of 1-A parts shown in Fig. 3；Fig. 5 is the schematic diagram before multipoint mooring cable stopper dependency structure of the present invention is built.

In the present invention, multipoint mooring includes 4 groups of mooring system 1-10, wherein, the bow stern of hull respectively sets 2 groups, hull The mooring system 1-10 of bow or stern is symmetrical.Every group of mooring system 1-10 includes 6 anchor chain devices, each anchor chain device It is correspondingly arranged 1 cable stopper.The present invention is illustrated in the method for the cable stopper for installing one group of mooring system 1-10.

Multipoint mooring cable stopper installation method, comprises the following steps：

Step S1001：Ship hull plate sidepiece is strengthened and consolidated.

Please refer to Fig. 6 and Fig. 7, Fig. 6 is the installation procedure figure of step S1001 shown in Fig. 1；Fig. 7 is the second reinforcement The structural representation of platform.

The step S1001 includes：

Step S1011：A reinforcement platform 1-1 is fixed along hull 1-20 outside plate sidepieces；Set on the reinforcement platform 1-1 Upper stiffener assembly 1-122 and lower stiffener assembly 1-123.

The platform 1-1 that strengthens includes being arranged on the first reinforcement platform 1-11 and the setting on the upside of hull 1-20 outside plate sidepieces Second on the downside of hull 1-20 outside plates strengthens platform 1-12.The first reinforcement platform 1-11 is to be fixed on the hull 1-20 The first of outside plate sidepiece strengthens outside plate 1-11.Described second, which strengthens platform 1-12, includes the second reinforcement outside plate 1-121, upper reinforcement group Part 1-122 and lower stiffener assembly 1-123.The second reinforcement outside plate 1-121 is fixedly welded on the outside plate side of the hull 1-20 Portion, and fitted with hull 1-20 outside plate；The upper stiffener assembly 1-122 and lower stiffener assembly 1-123 be arranged in parallel, and with Described second, which strengthens outer 1-121 plates, vertically fixes.

The upper stiffener assembly 1-122 includes the first reinforcing plate 1-1221 and the second reinforcing plate 1-1222.Described first adds Strong plate 1-1221 and the second reinforcing plate 1-1222 one end passes perpendicularly through described second and strengthens the outer of outside plate 1-121 and hull 1-20 Fix in plate, embedded hull 1-20 and with hull 1-20, the other end protrudes from described second and strengthens outside plate 1-121, for institute Support component part 1-2 is stated to be fixedly connected.

The lower stiffener assembly 1-123 includes the 3rd reinforcing plate 1-1231 and the 4th reinforcing plate 1-1232.Described 3rd adds Strong plate 1-1231 and the 4th reinforcing plate 1-1232 one end passes perpendicularly through described second and strengthens the outer of outside plate 1-121 and hull 1-20 Fix in plate, embedded hull 1-20 and with hull 1-20；The other end protrude from it is described second strengthen outside plate 1-121, for institute Lower support member 1-3 is stated to be fixedly connected.

Form accommodating cable stopper connector 1-51's between the second reinforcing plate 1-1222 and the 4th reinforcing plate 1-1232 Screens, screens height d is 2805mm.

The first reinforcing plate 1-1221, the second reinforcing plate 1-1222, the 3rd reinforcing plate 1-1231 and the 4th reinforcing plate 1- 1232 and second strengthen between outside plate 1-121, hull 1-20, and are adopted between the second reinforcement outside plate 1-121 and hull 1-20 Fixed with X-type groove full penetration；Described second strengthens outside plate 1-121, the first reinforcing plate 1-1221, the second reinforcing plate 1- 1222nd, the 3rd reinforcing plate 1-1231 and the 4th reinforcing plate 1-1232 use 40mmDH36-Z and 30mmDH36-Z high strength steel It is made.

Strengthen platform 1-1 further to consolidate, between the first reinforcing plate 1-1221 and the second reinforcing plate 1-1222, with And the 3rd be additionally provided with apertured partition 1-1223 and strength bracket to ensure between reinforcing plate 1-1231 and the 4th reinforcing plate 1-1232 Intensity.

Further to consolidate hull 1-20, the present invention is also reequiped to hull 1-20 outside plate simultaneously, by hull 1- 20 outside plate repacks 25mmAH36-Z sheet material into, in bulk in hull 1-20 cabins.

The present invention first carries out that segmentation is prefabricated to strengthening platform 1-1, and segmentation strengthens first platform 1-11 and second and strengthens flat Platform 1-12 is built, it is prefabricated after be then assembled into a block and hang in depressed place positioning closing up into hull 1-20.And by described first Reinforcing plate 1-1221, the second reinforcing plate 1-1222, the 3rd reinforcing plate 1-1231 and the 4th reinforcing plate 1-1232 and second strengthen outer Plate 1-121 is divided in same segmentation, effectively ensure that the first reinforcing plate 1-1221, the second reinforcing plate 1-1222, the 3rd add The spacing between plate 1-1231 and the 4th reinforcing plate 1-1232, reduces welding difficulty by force.With reinforcement outside plate when building simultaneously Reinforcement platform 1-1 can be matched with hull 1-20 outside plate line style, the connection of hull 1-20 and cable stopper is more consolidated.

The present invention makes mode to reinforcement platform 1-1 prefabricated segmentation using counter, and moulding bed is used as using hull 1-20 outer plate surface Built in face.

Step S1012：Upper support component 1-2 is fixed on the upper stiffener assembly 1-122, by lower supporting assembly 1-3 It is fixed on the lower stiffener assembly 1-123.

Referring to Fig. 8, it is the structural representation of upper support component and lower supporting assembly.The upper support component 1-2 bags Include and lead cable cylinder 1-21 and upper backup pad 1-22.The upper backup pad 1-22, which is separately fixed on described, leads cable cylinder above and below 1-21 Two ends.During installation, will be described on lead cable cylinder 1-21 upper and lower ends upper backup pad 1-22 respectively with the first reinforcing plate 1- 1221 and second reinforcing plate 1-1222 be welded and fixed.

The lower supporting assembly 1-3 leads cable cylinder 1-31 and lower supporting plate 1-32 under including；The lower supporting plate 1-32 difference Be fixed on it is described under lead cable cylinder 1-31 upper and lower ends.During installation, the lower supporting plate 1-32 of cable cylinder 1-31 upper and lower ends is led by under It is welded and fixed respectively with the 3rd reinforcing plate 1-1231 and the 4th reinforcing plate 1-1232.

The central shaft that cable cylinder 1-31 is led under cable cylinder 1-21 and lower supporting assembly 1-3 is led on the upper support component 1-2 Line is on same vertical curve.Specifically, axis hole center line is set at chain apparatus in rising for hull 1-20 tops, under hull 1-20 Be configured to lead in sample center line, adjustment on portion floor cable cylinder 1-21 and under lead cable cylinder 1-31 position, make to lead cable cylinder 1-21 and Under lead cable cylinder 1-31 central axis and axis hole center line and sample center line on same vertical curve.

Please refer to Fig. 9 to Figure 10, Fig. 9 is the installation procedure figure of step S1002 shown in Fig. 1；Figure 10 is institute in Fig. 9 Show step S1023 installation procedure figure.

Step S1002：The connection member 1-51 cards of cable stopper are set and upper support component 1-2 and lower supporting assembly is fixed on In screens between 1-3.

Wherein, the step S1002 includes：

Step S1021：Guide chain pipe 1-52 is fixedly connected with the connection member 1-51 of cable stopper.

Step S1022：By the connection member 1-51 of cable stopper hanging on hull 1-20 outside plate sidepieces, and make the company of cable stopper Relay part 1-51 is fastened in the screens between support component 1-2 and lower supporting assembly 1-3；

Step S1023：The connection member 1-51 of cable stopper is consolidated with upper support component 1-2 and lower supporting assembly 1-3 respectively Fixed connection.Wherein, the step S1023 includes：

Step S1231：Cable stopper is led into cable axle 1-53 vertically hanging on the top of upper support component；

Step S1232：The cable axle 1-53 that leads of cable stopper is sequentially passed through the upper support component 1-2, snubbed the chain from top to bottom The connection member 1-51 and lower supporting assembly 1-3 of device；

Step S1233：The cable axle 1-53 that leads of cable stopper is welded with upper support component 1-2 and lower supporting assembly 1-3 respectively It is fixed, and then the connection member 1-51 cards of cable stopper are set be fixed on upper support component 1-2 and be between support component 1-3.

Figure 11 is referred to, it is the schematic diagram after FPSO multipoint moorings cable stopper dependency structure of the present invention is built.

In the present invention, before cable stopper is installed, is led under lower supporting assembly 1-3 and set a support to adjust below cable cylinder 1-31 Engagement positions 1-6, sets one to turn to adjusting apparatus 1-7 between upper support component 1-2 and lower supporting assembly 1-3.Simultaneously by guide chain Pipe 1-52 is weldingly fixed on the connection member 1-51 of cable stopper.Then the connection member 1-51 of cable stopper is hung vertical, makes to snub the chain The connection member 1-51 of device is fastened in the screens.The cable axle 1-53 that leads of cable stopper is hung vertical vertically, passed through successively from top to bottom Wear the upper support component on lead cable cylinder 1- led under cable cylinder 1-21, the connection member 1-51 of cable stopper and lower supporting assembly 31, make cable stopper lead cable axle 1-53 with this on lead cable cylinder 1-21, the connection member 1-51 of cable stopper and under lead cable cylinder 1-31 consolidate It is fixed.The steering for leading cable axle 1-53 of cable stopper is adjusted, and is fixed by the steering adjusting apparatus 1-7, then cable axle 1-53 will be led With led on this cable cylinder 1-21, the connection member 1-51 of cable stopper and under lead cable cylinder 1-31 be welded and fixed.Adjust guide chain pipe 1-52's Position and angle, and be welded and fixed by the supporting and adjusting device 1-6.Drawn again by mooring cable 1-9 from chain apparatus 1-8 Go out, around the snubbing the chain on hole of the cable stopper is located at, pass through the guide chain pipe 1-53 moorings seabed.

In the present invention, the supporting and adjusting device 1-6 includes the main support column 1-61 of accumbency, fixes many on main support column The first fix bar of root 1-62, the second fix bar 1-63 and spring assembly 1-64.During the fixed supporting and adjusting device, by described the One fix bar 1-62 and the lower supporting assembly lower supporting plate 1-32 are welded and fixed, and adjust the position of second fix bar Put, its end is fitted in hull 1-20 outside plate.When the connection member of cable stopper is fixed in screens, by spring assembly 1-64 is lifted between main support rod 1-61 and guide chain pipe 1-52, and after the angle location and installation of cable chain demand, spring is filled Put 1-64 and guide chain pipe 1-52 to be welded and fixed, so that the guide chain pipe 1-52 angle that is flapped toward is fixed.

In the present invention, the adjustment component 1-7 that turns to includes being fixed on support component 1-2's and lower supporting assembly 1-3 The sleeve pipe 1-71 and pipe 1-72 led on cable axle 1-53 for being fixed on cable stopper.Described turning for cable axle 1-53 is led when adjusting Backward, the pipe 1-72 is inserted in described sleeve pipe 1-71, and fixed by screw through the pipe 1-72 and sleeve pipe 1-71, And then realization is fixedly connected to leading cable axle 1-53.

In the present invention, every group of mooring point sets 6 cable stoppers altogether, each nearly weighs 60T.

The building technology of the transfer platform：

Please refer to Figure 12 and Figure 13, Figure 12 is the structural representation of transfer platform of the present invention；Figure 13 is that the present invention is defeated The construction flow chart of oily platform.The building technology of the transfer platform, comprises the following steps：

Step S2001：Sectional construction：Upper transfer platform 2-1 is divided into multiple upper segmentations, lower transfer platform 2-2 is distinguished Multiple lower segmentations, build to each segmentation.

The facility of elevating capacity and construction technology in view of crane, is divided into eight upper segmentations by upper transfer platform 2-1, will Lower transfer platform 2-2 is divided into segmentation under eight and built.

Figure 14 to Figure 16 is referred to, Figure 14 is the construction flow chart of each upper segmentation of transfer platform in the present invention；Figure 15 is this The part-structure schematic diagram being segmented in invention on transfer platform；Figure 16 is that the overall structure being segmented in the present invention on transfer platform is shown It is intended to.

When upper segmentation each to upper transfer platform 2-1 is built, comprise the following steps：

Step S2111：Upper plate 2-11 is fixed on upper moulding bed；

In the present invention, the upper plate 2-11 is tilted to side, and shape has angle between horizontal plane, the angle of the angle It is 30 ° -90 ° to spend scope.Specifically, the upper plate 2-11 is tilted from top to bottom, and when building, the upper plate 2-11 is tilted Lower end be fixed on ship hull plate Y.

Step S2112：Upper support fixture 2-12 is weldingly fixed on upper plate 2-11；The upper support fixture 2- 12 are provided with multiple upper through holes；

In the present invention, the upper support fixture 2-12 includes upper backup pad 2-121 and is fixed on upper on upper backup pad Top plate 2-122.To strengthen between upper transfer platform 2-1 stability, the upper support fixture 2-12 and upper plate 2-11 also Fixed by upper floor 2-123.

Step S2113：Multiple upper pipe 2-13 are each passed through into the upper through hole to be fixed on upper plate 2-11.

Step S2114：Epipleural 2-14 two ends end is consolidated with upper plate 2-11 and upper support fixture 2-12 respectively Fixed connection.

In the present invention, the epipleural 2-14 is the bending plate being made up of the first side plate 2-141 and the second side plate 2-142, First side plate 2-141 one end end is fixedly connected with the second side plate 2-142 one end end, the first side plate 2-141 Other end end fixed with upper plate 2-11, the other end end of the second side plate 2-142 and upper support fixture 2-12 Upper plate 2-122 be fixedly connected.

In the present invention, to strengthen upper transfer platform 2-1 stability, upper pipe 2-13 and upper plate 2-11, on pipe Also fixed between 2-13 and upper support fixture 2-12 by upper reinforcing plate 2-15；And the upper support fixture 2-12 with it is upper Bottom plate 2-11, upper pipe 2-13 and upper plate 2-11, upper floor and upper support fixture 2-12 and upper plate 2-11, epipleural 2- Pass through CO between 14 two ends end and upper plate 2-11, upper support fixture 2-12₂The mode of welding is welded and fixed.

Please refer to Figure 17, Figure 17 is the overall structure diagram being segmented under the present invention.

When lower segmentation each to lower transfer platform 2-2 is built, comprise the following steps：

Step S2121：Lower shoe 2-21 is fixed on lower moulding bed；

In the present invention, the lower shoe 2-21 is a level board.

Step S2122：Lower supporting plate 2-22 is fixed on lower shoe 2-21；

Step S2123：Lower roof plate 2-23 is fixedly connected with lower supporting plate 2-22；The lower support fixture is provided with more Individual lower through-hole；

Step S2124：Multiple lower pipe 2-24 are each passed through into the lower through-hole to be fixed on lower shoe 2-21；

In the present invention, to strengthen lower transfer platform 2-2 stability, floor is further fixed on lower shoe 2-21, it is described Floor supports fixed lower roof plate 2-23 together with lower supporting plate 2-22；And in lower pipe 2-24 and lower shoe 2-21, lower pipe Also fixed between 2-24 and lower roof plate 2-23 by lower reinforcing plate 2-25.

In the present invention, the lower supporting plate 2-22 and lower shoe 2-21, lower pipe 2-24 and lower shoe 2-21, lower floor and Pass through CO between lower supporting plate and lower shoe 2-21₂The mode of welding is welded and fixed.

Step S2002：Lifting positioning is carried out to upper segmentation and is welded and fixed：Split fix line in delimitation, by each upper segmentation Lift and be weldingly fixed on the upside of ship hull plate.

Please refer to Figure 18 to Figure 19, Figure 18 is the positioning figure of the upper segmentation of upper transfer platform；Figure 19 is that upper oil transportation is put down The side view being segmented on platform.

When lifting positioning is carried out to upper transfer platform 2-1 upper segmentation, comprise the following steps：

Step S2211：Multiple upper limit plate 2-X11 are installed on ship hull plate 2-Y；

The present invention, the plurality of upper limit plate 2-X11 is located in same level height, and upper limit plate 2-X11 is to one Roll oblique, the inclined angle is consistent with the inclined angles of upper plate 2-11, to hold the upper plate 2-11, and with it is described on Bottom plate 2-11 lower surface fits.

Step S2212：Every grade of rib position surplus of segmentation is determined according to the ship hull plate 2-Y line styles data of measurement, is existed with laser Mowing surplus after being rule in each segmentation, is cut, groove of having been polished after cutting using pattern；

Step S2213：By upper segmental hoisting, so that the lower end of upper segmentation is placed at mounted upper limit plate 2-X11；

Step S2214：The first deck level is marked on ship hull plate 2-Y with total powerstation and examines rib before line 2-M11, first Bit trial line 2-M12 and the first aft rib bit trial line 2-M13, to examine the positioning of segmentation whether accurate；

Step S2215：Examine line 2-M11 as baseline using the first deck level, taken a little in the upper surface 2-N11 of upper segmentation, And the position of segmentation is adjusted, make the difference of the upper surface examine line 2-M11 vertical range identical away from the first deck level； Taken a little respectively on the rear and front end face of upper segmentation, and adjust the position of segmentation, make segmentation front end face 2-N12 difference away from Rib bit trial line 2-M12 horizontal range is identical before first, and make segmentation rear end face 2-N13 difference away from the first aft rib Bit trial line 2-M13 horizontal range is identical.

In the present invention, the upper surface 2-N11 of the upper segmentation is the upper surface of upper plate；The front end face of the upper segmentation 2-N12 is plane where the upper pipe 2-13 of forward end central axis；After the rear end face 2-N13 of the upper segmentation is Hold the upper pipe 2-13 of end end central axis place plane.

Please refer to Figure 20 to Figure 21, Figure 20 is the sectional view being segmented on upper transfer platform；Figure 21 is upper transfer platform The welding schematic diagram of upper segmentation.

When welding is fixed to upper transfer platform 2-1 upper segmentation, comprise the following steps：

Step S2221：Multiple first are installed on the upside of ship hull plate 2-Y and draws code 2-A11；

In the present invention, the plurality of first draws code 2-A11 to be located on sustained height.

Step S2222：Installed in upper segmentation it is multiple with first draws code 2-A11 corresponding second draws code 2-A12, this One draws code 2-A11 and second to draw code 2-A12 on same rib bit line；

In the present invention, described second draws code 2-A12 to be arranged on the upper plate 2-122 of the upper segmentation.

Step S2223：By drawing code screw to be fixedly connected with the first drawing code and the second drawing code, and then by upper transfer platform 2-1 upper segmentation is fixed on the upside of ship hull plate 2-Y；

Step S2224：Pad 2-Z1 on multiple is set in upper segmentation, according to pad 2-Z1 and ship hull plate on this 2-Y is welded and fixed.

Step S2003：Lifting positioning is carried out to lower segmentation and is welded and fixed；Lower split fix line delimited, by each lower segmentation Lifting is closed up and is weldingly fixed on the downside of ship hull plate 2-Y.

Please refer to Figure 22 to Figure 23, Figure 22 is the positioning figure of the lower segmentation of lower transfer platform；Figure 23 is that lower oil transportation is put down The side view being segmented under platform.

When lifting positioning is carried out to lower transfer platform 2-2 lower segmentation, comprise the following steps：

Step S2311：Multiple lower limiting board 2-X21 are installed on ship hull plate 2-Y, high-order support frame 2- is installed on ground X22；

Step S2312：Lower every grade of rib position surplus of segmentation is determined according to the outside plate line style data of measurement, with laser at each lower point Mowing surplus after being rule in section, is cut, groove of having been polished after cutting using pattern；

Step S2313：The second deck level is marked on outside plate examine rib bit trial before line 2-M21, second with total powerstation Line 2-M22 and the second aft rib bit trial line 2-M23；

Step S2314：By lower segmental hoisting, so that the lower end of lower segmentation is placed at mounted lower limiting board 2-X21, and The lower segmentation is held by the high-order support frame 2-X22；

Step S2315：Examine line 2-M21 as baseline using the second deck level, taken a little in the upper surface 2-N21 of lower segmentation, And the position of lower segmentation is adjusted, make the difference of the upper surface examine line 2-M21 vertical range identical away from the second deck level； Taken a little respectively on the rear and front end face of lower segmentation, and adjust the position of lower segmentation, make the front end face 2-N22 of lower segmentation difference O'clock horizontal range away from rib bit trial line 2-M22 before second is identical, and makes lower segmentation rear end face 2-N23 difference away from after second Rib bit trial line 2-M23 horizontal range is identical, and makes the lower pipe 2-24 of the upper pipe 2-13 of segmentation and lower segmentation same In one vertical straight line.

In the present invention, the upper surface 2-N21 of the lower segmentation is lower roof plate 2-23 upper surface；Before the lower segmentation End face 2-N22 is plane where the central axis of the upper pipe of forward end；The lower segmentation rear end face 2-N23 is rear end Plane where the central axis of the upper pipe of end

Please refer to Figure 24 to Figure 25, Figure 24 is segmentation pad setting structure schematic diagram under lower transfer platform；Figure 25 It is the structural representation under lower transfer platform after segmentation welding.

When welding is fixed to lower transfer platform 2-2 upper segmentation, comprise the following steps：

Step S2321：Multiple three are installed on the downside of ship hull plate 2-Y and draws code 2-A21；

In the present invention, the plurality of 3rd draws code 2-A21 to be located on sustained height；

Step S2322：Installed in upper segmentation it is multiple with the 3rd draws code 2-A21 corresponding the 4th draws code 2-A22, this Three draw code 2-A21 and the 4th to draw code 2-A22 on same rib bit line；

Step S2323：By drawing code screw to be fixedly connected with the 3rd drawing code and the 4th drawing code, and then by upper transfer platform 2-1 lower segmentation is fixed on the downside of ship hull plate 2-Y.

Step S2324：Multiple lower pad 2-Z2 are set in lower segmentation, according to lower the pad 2-Z2 and ship hull plate 2-Y is welded and fixed.

The flare tower building technology：

Please referring also to Figure 26 to Figure 31, Figure 26 are the segmentations of the flare tower in the large torch tower building technology of the present invention Schematic diagram, Figure 27 is the structural representation of the main segmentations of 3-B2 in Fig. 2, and Figure 28 is the building technology of splice sections 3-B21-1 in Figure 27 Schematic diagram, Figure 29 is each splice sections splicing process schematic perspective view, and Figure 30 is each splice sections splicing process schematic top view, Figure 31 It is main block assembly schematic diagram in Figure 26.

See Figure 26,117 meters of the large torch tower building technology flare tower 3-20 the to be built height of this case always weighs about 380 Flare tower 3-20 is divided into the main segmentations of 3-B1,3-B2,3-B3,3-B4 tetra-, wherein 3-B1 length by ton, construction plan from the bottom to top The long 35125mm of 8525mm, 3-B2 long 34825mm, 3-B3 long 38725mm, 3-B4.Wherein, 3-B1 is main is segmented because its length is short, Multiple splice sections need not be divided into and directly built, the building technology of the main segmentation of 3-B2,3-B3,3-B4 is identical, below to build 3- Illustrate flare tower 3-20 building technology exemplified by the main segmentations of B2.

See Figure 27, the main segmentations of 3-B2 include standing in the first column 3-21 of equilateral triangle setting, the second column 3-22, the 3rd Post 3-23 and horizontal or oblique be cross-linked first column 3-21, the second column 3-22, the 3rd column 3-23 diagonal brace 3-24. The first column 3-21 is spliced by seven splice sections from bottom to top, and seven splice sections are followed successively by 3-B21-1,3-B21- 2、3-B21-3、3-B21-4、3-B21-5、3-B21-6、3-B21-7.Likewise, the second column 3-22 by 3-B22-1 extremely 3-B22-7 is spliced (not shown)；The 3rd column 3-23 is spliced (not shown) by 3-B23-1 to 3-B23-7.Its In, the docking of the splicing of splice sections and main segmentation was both splicing round mouth or was docking the symmetrical of round mouth using technique is symmetrically welded Welded on point.

Specifically, a kind of large torch tower building technology, is mainly included the following steps that：

S3001：Build four main segmentations, 3-B1,3-B2,3-B3,3-B4；

Wherein, 3-B1 is main is segmented because its length is short, is directly built, 3-B2,3-B3,3- without being divided into multiple splice sections The building technology of the main segmentations of B4 is identical, illustrates the building technology of main segmentation exemplified by building the main segmentations of 3-B2 below, builds 3-B2 Main segmentation comprises the following steps：

S3011：Build first group of seven splice sections 3-B21-1,3-B21-2,3-B21-3,3-B21-4,3-B21-5,3- B21-6、3-B21-7.Build second group of seven splice sections 3-B22-1 to 3-B22-7.Build the 3rd group of seven splice sections 3-B23- 1 to 3-B23-7；

Specifically (see Figure 28), all splice sections are by square plate roll bending into pipe, the longitudinal measure line of the pipe Into a piece welding zone 3-H.

S3012：First group of seven splice sections 3-B21-1 to 3-B21-7 are spliced into the first column 3-21, by second group Seven splice sections 3-B22-1 to 3-B22-7 be spliced into the second column 3-22, by the 3rd group of seven splice sections 3-B23-1 extremely 3-B23-7 is spliced into the 3rd column 3-23；

Specifically (see Figure 29 and Figure 30)：

Piece welding zone dislocation between first column 3-21 the first splice sections 3-B21-1 and the second splice sections 3-B21-2 180°；

Piece welding zone dislocation between first column 3-21 the second splice sections 3-B21-2 and the 3rd splice sections 3-B21-3 90°；

Piece welding zone dislocation between the 3rd splice sections 3-B21-3 and the 4th splice sections 3-B21-4 of first vertical 3- posts 21 90°；

Piece welding zone dislocation between first column 3-21 the 4th splice sections 3-B21-4 and the 5th splice sections 3-B21-5 180°；

Piece welding zone dislocation between first column 3-21 the 5th splice sections 3-B21-5 and the 6th splice sections 3-B21-6 90°；

Piece welding zone dislocation between first column 3-21 the 6th splice sections 3-B21-6 and the 7th splice sections 3-B21-7 90°；

Piece welding zone dislocation between second column 3-22 the first splice sections 3-B22-1 and the second splice sections 3-B22-2 180°；

Piece welding zone dislocation between second column 3-22 the second splice sections 3-B22-2 and the 3rd splice sections 3-B22-3 90°；

Piece welding zone dislocation between second column 3-22 the 3rd splice sections 3-B22-3 and the 4th splice sections 3-B22-4 90°；

Piece welding zone dislocation between second column 3-22 the 4th splice sections 3-B22-4 and the 5th splice sections 3-B22-5 180°；

Piece welding zone dislocation between second column 3-22 the 5th splice sections 3-B22-5 and the 6th splice sections 3-B22-6 67.5°；

Piece welding zone dislocation between second column 3-22 the 6th splice sections 3-B22-6 and the 7th splice sections 3-B22-7 70°；

Piece welding zone dislocation between 3rd column 3-23 the first splice sections 3-B23-1 and the second splice sections 3-B23-2 180°；

Piece welding zone dislocation between 3rd column 3-23 the second splice sections 3-B23-2 and the 3rd splice sections 3-B23-3 90°；

Piece welding zone dislocation between 3rd column 3-23 the 3rd splice sections 3-B23-3 and the 4th splice sections 3-B23-4 90°；

Piece welding zone dislocation between 3rd column 3-23 the 4th splice sections 3-B23-4 and the 5th splice sections 3-B23-5 180°；

Piece welding zone dislocation between 3rd column 3-23 the 5th splice sections 3-B23-5 and the 6th splice sections 3-B23-6 90°；

Piece welding zone dislocation between 3rd column 3-23 the 6th splice sections 3-B23-6 and the 7th splice sections 3-B23-7 72.5°。

S3013：Build some diagonal brace 3-24, the diagonal brace 3-24 can be horizontal or oblique be connected to the first column 3- 21st, into multistage truss framework between the second column 3-22, the 3rd column 3-23, and will according to following assemble sequence from the bottom to top The diagonal brace 3-24, the first column 3-21, the second column 3-22, the 3rd column 3-23 are assembled into main segmentation 3-B2 together, specifically For (see Figure 31)：First assemble the first column 3-21, then weld the diagonal brace 3-24 between the first column 3-21 and the second column 3-22, The second column 3-22 is reassembled, diagonal brace 3-24 and the second column between the first column 3-21 and the 3rd column 3-23 is then welded Diagonal brace 3-24 between 3-22 and the 3rd column 3-23, finally assembles the 3rd column 3-23.

S3002：The corresponding column of tetra- main segmentations of 3-B1,3-B2,3-B3,3-B4 is docked into composition flare tower 3- respectively 20.Wherein, 3-B1,3-B2,3-B3,3-B4 sections of the first column is welded successively；The second of 3-B1,3-B2,3-B3,3-B4 sections stands Post is welded successively；3-B1,3-B2,3-B3,3-B4 sections of the 3rd column is welded successively, and complete torch is finally constituted on the ground Tower 3-20.

The hoisting of the crane superstructure：

Figure 32 is referred to, it is the structural representation of crane superstructure 4-20 in this case.The crane top knot Structure 4-20 includes operating platform 4-21, main arm 4-22 and joint arm 4-23, the operating platform 4-21 and main arm 4-22 The initial angle α 2 of lateral connection, the main arm 4-22 and joint arm 4-23 lateral connections and main arm and joint arm into Obtuse angle, the superstructure 4-20 overall lengths 41531mm (L1), its center of gravity by the superstructure be divided into 12531mm (L2) and 29000mm (L3) left part and right part.

Please refer to Figure 33 to Figure 35, Figure 33 is that the main lifting rope of the hoisting of crane superstructure of the present invention is installed Schematic diagram, Figure 34 is the lifting schematic diagram of the hoisting of crane superstructure of the present invention, and Figure 35 is in this case on crane The assembling schematic diagram of portion's structure.The hoisting of the crane superstructure of the present invention, comprises the following steps：

S4001：Main lifting rope is installed on superstructure 4-20, seen on Figure 34, the upper end of the main lifting rope and crane barge arm Suspension ring connection, the main lifting rope includes the first lifting rope group 4-31 and the second lifting rope group 4-32, and the first lifting rope group 4-31 is located at Superstructure 4-20 center of gravity G left sides 6834mm (L4) place, the second lifting rope group 4-32 are located at superstructure 4-20 center of gravity G Right side 6834mm (L5) place, then adjusts the height of crane barge arm so that the first lifting rope group 4-31 and the second lifting rope group 4- 32 form one 10 ° of initial lifting angle [alpha] 1.

The first lifting rope group 4-31 includes the first lifting rope 4-311 and the second lifting rope 4-312, the first lifting rope 4-311 Superstructure 4-20 front and back is connected to the second lifting rope 4-312, the first lifting rope 4-311 and second is hung Strip chock is set to cause the first lifting rope 4-311 and the second lifting rope 4-312 15 ° of angle αs 3 of formation between rope 4-312；Described Two lifting rope group 4-32 include the 3rd lifting rope 4-321 and the 4th lifting rope 4-322, the 3rd lifting rope 4-321 and the 4th lifting rope 4-322 It is connected between superstructure 4-20 front and back, the 3rd lifting rope 4-321 and the 4th lifting rope 4-322 and sets Strip chock causes the 3rd lifting rope 4-321 and the 4th lifting rope 4-322 15 ° of angle αs 4 of formation.

S4002：The mounting and adjusting rope group on superstructure 4-20, the adjustment rope group is bundled in operating platform 4- including one The first adjustment rope 4-41 and the second adjustment rope 4-42 for being bundled in the joint arm 4-23 ends on 21.

S4003：Integral lifting superstructure 4-20 and the angle for adjusting main arm 4-22 and joint arm 4-23 in the air, Figure 34 is seen, because the rings height on crane barge arm top is fixed, with superstructure 4-20 slow rising, described initial Hang angle [alpha] 1 accordingly to incrementally increase, when the initial lifting angle [alpha] 1 reaches 12 °, start the liquid on the operating platform 4-21 Compress switch the withdrawal joint arm 4-23 so that the main arm 4-22 and joint arm 4-23 initial angle α 2 is by original Obtuse angle narrow down to one 75 ° of acute angle.

S4004：Superstructure 4-20 is docked, Figure 35 is seen, the initial lifting is risen to when superstructure 4-20 continues to hang When angle [alpha] 1 is 28 °, artificial commander's hull 4-50 positioning is docked in superstructure 4-20 underface, then slow to decline institute State superstructure 4-20 to it is described it is initial lifting angle [alpha] 1 be 20 ° when, pull it is described first adjustment rope 4-41 and second adjustment rope 4-42 so that the arm bracket 4-60 on the main arm 4-22 alignments deck, and allow superstructure 4-20 to be placed on arm On bracket 4-60, then the lower end flanges of the operating platform 4-21 are docked with the stack shell 4-24 flanges on deck, finally solved Lock lifting rope and adjustment is restricted, first unlock the first adjustment rope 4-41 and second adjustment rope 4-42, then sequentially unlock the One lifting rope 4-311, the 3rd lifting rope 4-321, the second lifting rope 4-312, the 4th lifting rope 4-322.

Further, preferably, the first adjustment rope 4-41, the second adjustment rope 4-42, the first lifting rope 4-311, second Lifting rope 4-312, the 3rd lifting rope 4-321 and the 4th lifting rope 4-322 are the lifting ropes that tensile strength is not less than 20 tons.

The building technology of the pillar of the seawater lift pump：

Please refer to Figure 36 to Figure 42, Figure 36 is the structural representation of the pillar of the seawater lift pump of the present invention, Figure 37 It is the structural representation of arc frock in the present invention, Figure 38 is the structural representation of annular frock in the present invention, and Figure 39 is this hair Bright middle base segment butt-joint process schematic diagram, Figure 40 is the structural representation of outer arcuate code plate in the present invention, Figure 41 be in the present invention in The structural representation of arc code plate, Figure 42 is the sealing weld process schematic representation of longitudinal measure zone in the present invention.

The building technology of the pillar of seawater lift pump of the present invention, the pillar 5-100 of the seawater lift pump to be built is located at FPSO ship starboard wing tanks, its vertical main ship deck, hull two-layer platform, three layers of platform of hull, four layers of hull of sequentially passing through is put down Platform and hull bottom plate, its internal diameter Ф 50 are that 1.1m, length L50 are that 32.3m, weight are about 36 tons.The shield of the seawater lift pump The equal welded flange in pipe 5-100 tops and bottom is used to connect other workpieces, and pillar main body is divided into first from top to bottom Base segment 5-101 is to hendecyl section 5-111, and wherein top flange, the first base segment 5-101 to the tenth base segment 5-110 collectively form The pillar 5-100 of the seawater lift pump superstructure 5-160, the superstructure the 5-160 a length of 3m of each base segment, the Hendecyl section 5-111 and flange in the bottom collectively form the pillar 5-100 of seawater lift pump substructure 5-170, the 11st The a length of 2.3m of base segment 5-111.First base segment and 5-101 hendecyls section 5-111 pipe thickness are 35mm, the second base segment 5- 102 to the tenth base segment 5-110 pipe thickness is 25mm.Perpendicular separation is welded with the outer wall of the superstructure 5-160 One platform 5-181, the second platform 5-182, the 3rd platform 5-183 and the 4th platform 5-184 and main ship deck, two layers of hull are put down Platform, three layers of platform of hull, four layers of platform correspondence of hull.

The pillar 5-100 of seawater lift pump building technology, comprises the following steps：

S5001：The pillar 5-100 of seawater lift pump superstructure 5-160 and substructure 5-170 is built respectively, should Step comprises the following steps：

S5011：Substrate is rolled into 11 tubular base segments respectively with veneer reeling machine, and is designated the first base segment 5-101 extremely Hendecyl section 5-111, each of which part base segment uses internal diameter for 1.1m 120 degree of fan-shaped frocks during roll bending, regularly 5-200 carrys out the crooked radian of inspection substrate；After each base segment completes, the annular frock 5-220 for being 1.1m with internal diameter come The circularity of base segment is detected, to ensure the arc accuracy of each base segment.

Fan-shaped frock 5-200 is that sector is made in a plank, and its radian measure alpha 51 is 120 °, its internal diameterFor 1100mm, it is used for Measure the curling circularity of substrate.

Annular frock 5-220 is that annular is made in a plank, its internal diameterFor 1095mm, the curling for measuring substrate is justified Degree.

S5012：Base segment longitudinal slot is welded, and the longitudinal slot in the S5011 on base segment tube wall is processed into by the step Simultaneously sealing weld forms it into longitudinal measure zone 5-141 to welding groove, and the sealing weld technique of the longitudinal measure zone 5-141 is：a) The outer groove spot welding → b of base segment pipe) 3 outer arc shape code plate 5-240 intervals of base segment pipe external application are positioned side by side → c) in welding base segment pipe Groove → d) remove the outer arc shape code plate 5-240 → e) base segment pipe outside weld catching groove → f) and in pipe with 3 inner arc shape code plate 5- 241 are spaced positioned side by side → g) the outer groove of welding base segment pipe.

The outer arc shape code plate 5-240 is the square plate of one side arc-shaped recess, and its circular arc internal diameter is 5-1100mm, and its is recessed The distance on sunken arc top to one side corresponding thereto is not less than 200mm to ensure that outer arc shape code plate 5-240 has enough intensity. The outer arc shape code plate 5-240 clasps the outer wall of base segment along camber line and is welded and fixed so that base segment close up in welding process by Power is unlikely to deform.

The inner arc shape code plate 5-241 is the square plate of one side arc evagination, and its circular arc internal diameter is 1100mm, its evagination Arc top to one side corresponding thereto distance not less than 200mm to ensure that inner arc shape code plate 5-241 has enough intensity.Institute State inner arc shape code plate 5-241 to be adjacent to the inwall of base segment along camber line and be welded and fixed so that base segment closes up stress in welding process It is unlikely to deform.

S5013：Base segment is spliced into splice sections, splice sections and is butted into trunnion 5-164, and the step is first by the second base segment 5-102 The first splice sections 5-161, the 5th base segment 5-105 to the 7th base segment 5-107 are coaxially spliced into the 4th base segment 5-104 coaxially to splice The 3rd splice sections 5-163 is coaxially spliced into the second splice sections 5-162, the 8th base segment 5-108 to the tenth base segment 5-110, then will First splice sections 5-161, the second splice sections 5-162, the 3rd splice sections 5-163 are coaxial docking into a trunnion 5-164.In the step The longitudinal measure zone 5-141 of adjacent two pieces base segment staggers 180 degree in the axial direction.

Further, in the step, splicing welding is carried out to base segment or splice sections are carried out before butt welding, is surveyed using steel wire is drawn The mode of straight line ensures the trunnion 5-164 linearity being made.Both at some base segment two of the coaxial placement of level 0 ° of tube wall circular arc, 90 °, determine to draw a steel wire between three groups of datum marks, and every group of datum mark of correspondence respectively on 180 ° of positions, lead to Cross every 500mm measuring steel wires and the distance of base segment tube wall to determine the depth of parallelism of each base segment, and then determine the axle of each part base segment On the same line whether, such as the linearity margin of tolerance exceeds ± 2mm to the heart, then corrects the placement posture of base segment.

Further, in the step, when splicing welding or splice sections progress butt welding are carried out to base segment, first by the base segment mouth of pipe It is processed into welding groove and sealing weld forms it into annular solder zone 5-142, the sealing weld technique of the annular solder zone 5-142 For：H) outer groove spot welding → i is managed) outer arc shape code plate 5-240 intervals outside pipe are positioned side by side → j) welded pipe internal groove → k) remove Arc code plate 5-240 → l except as noted) weld seam catching groove → m) inner arc shape code plate 5-241 intervals in pipe are positioned side by side → n) weldering The outer groove of adapter.

Further, in the j) step and n) step welding, in order to reduce the welding deformation of base segment or splice sections, use The mode being symmetrically welded, was both synchronously welded on the axial symmetry point of the annular solder zone 5-142.

S5014：By top flange, the first base segment 5-101, the integrally welded formation seawater lift pumps of trunnion 5-164 Pillar 5-100 superstructure 5-160；By bottom flange, the hendecyl section integrally welded formation seawater lift pumps of 5-111 Pillar 5-100 substructure 5-170.

S5015：The first platform 5-181, the second platform 5- are welded in interval successively on the outer wall of the superstructure 5-160 182nd, the 3rd platform 5-183 and the 4th platform 5-184, the first platform 5-181, the second platform 5-182, the 3rd platform 5-183 and 4th platform 5-184 vertically entangles the tube wall of the superstructure 5-160.The first platform 5-181 is used for later stage and ship Body main deck is integrally welded；Second platform 5-182 is used for the later stage and hull two-layer platform is integrally welded；3rd platform 5- 183 is integral for three layers of platform welding of later stage and hull；4th platform 5-184 be used for later stage and four layers of platform welding of hull into One.The pillar 5-100 of the seawater lift pump outer wall anticorrosive paint in later stage hoisting process can be so prevented effectively from surprisingly to be damaged Wound.

S5016：Respectively to the superstructure 5-160, substructure 5-170 and the first platform 5-181, the second platform 5- 182nd, the 3rd platform 5-183, the 4th platform 5-184 painting anticorrosion coating.

S5002：The pillar 5-100 of seawater lift pump substructure 5-170 is positioned on the reserved location of hull, and is hung Fill superstructure 5-160 interfaced.

S5003：The first platform 5-181 is docked with main ship deck；The second platform 5-182 is put down for two layers with hull Platform is docked；Three layers of platform of the 3rd platform 5-183 and hull are docked；The 4th platform 5-184 and four layers of platform pair of hull Connect.

The invention is not limited in above-mentioned embodiment, if the various changes or deformation to the present invention do not depart from the present invention Spirit and scope, if these are changed and deformation belongs within the scope of the claim and equivalent technologies of the present invention, then this hair It is bright to be also intended to comprising these changes and deform.

Claims (10)

1. the method that oil tanker repacks FPSO into, it is characterised in that including following reform technology：

S1000：Multipoint mooring cable stopper dependency structure building technology, comprises the following steps：

Step S1001：Ship hull plate sidepiece is strengthened and consolidated；The step S1001 includes：

Step S1011：A reinforcement platform is fixed along ship hull plate sidepiece；The reinforcement platform includes being arranged on ship hull plate sidepiece First reinforcement platform of upside and the second reinforcement platform being arranged on the downside of ship hull plate, strengthen setting on platform described second Upper stiffener assembly and lower stiffener assembly；

Step S1012：Upper support component is fixed on the upper stiffener assembly, lower supporting assembly is fixed on the lower reinforcement On component；

Step S1002：The screens that the connection member card of cable stopper is set and is fixed between upper support component and lower supporting assembly On；S2000：The building technology of transfer platform, comprises the following steps：

Step S2001：Sectional construction：Upper transfer platform is divided into multiple upper segmentations, lower transfer platform is divided into multiple lower segmentations, Each segmentation is built；

Step S2002：Lifting positioning is carried out to upper segmentation and is welded and fixed：Split fix line in delimitation, by each upper segmental hoisting And be weldingly fixed on the upside of ship hull plate；

Step S2003：Lifting positioning is carried out to lower segmentation and is welded and fixed：Lower split fix line delimited, by each lower segmental hoisting Close up and be weldingly fixed on the downside of ship hull plate；

S3000：Flare tower building technology, comprises the following steps：

S3001：Build four main segmentations；Wherein, each main segmentation is built to comprise the following steps：

S3011：First group of seven splice sections is built, second group of seven splice sections is built, the 3rd group of seven splice sections are built；

S3012：First group of seven splice sections are spliced into the first column, wherein the piece welding zone per two neighboring splice sections is all It is out-of-line, second group of seven splice sections are spliced into the second column, wherein per two neighboring splice sections piece weld Area is all out-of-line, the 3rd group of seven splice sections are spliced into the 3rd column, wherein the spelling per two neighboring splice sections Seam weld area is all out-of-line；

S3013：Build some diagonal braces, the diagonal brace can be horizontal or oblique be connected to first column, the second column, the 3rd stand Into multistage truss framework between post, the diagonal brace, the first column, the second column, the 3rd column are assembled into main segmentation together；

S3002：The corresponding column of four main segmentations is docked respectively and constitutes complete flare tower；

S4000：The hoisting of crane superstructure, wherein the crane superstructure includes operating platform, main arm And joint arm, the operating platform and main arm lateral connection, the main arm and joint arm lateral connection and main arm Initial angle with joint arm is into obtuse angle, and the superstructure is divided into by the superstructure overall length 41531mm, its center of gravity 12531mm and 29000mm left part and right part, the hoisting of the crane superstructure comprises the following steps：

S4001：Main lifting rope is installed in superstructure, the upper end of the main lifting rope is connected with the suspension ring on crane barge arm, the master Lifting rope includes the first lifting rope group and the second lifting rope group, the first lifting rope group is located on the left of the center of gravity of superstructure at 6834mm, The second lifting rope group is located at the height that crane barge arm is then adjusted on the right side of the center of gravity of superstructure at 6834mm so that described First lifting rope group forms one 10 ° of initial lifting angle with the second lifting rope group；

S4002：The mounting and adjusting rope group in superstructure, the adjustment rope group includes the first tune of a binding on the operational platform Whole rope and the second adjustment rope for being bundled in the joint boom tip；

S4003：Integral lifting superstructure and the angle for adjusting main arm and joint arm in the air, due to crane barge arm top Rings height fix, with the slow rising of the superstructure, it is described it is initial lifting angle accordingly incrementally increase, when it is described just When the lifting angle that begins reaches 12 °, the hydraulic selector started on the operating platform withdraws the joint arm so that the master hangs The initial angle of arm and joint arm narrows down to an acute angle by obtuse angle；

S4004：Dock superstructure, when the superstructure continues to hang to rise to the initial lifting angle be 28 ° when, artificial commander Hull positions the underface for being docked in the superstructure, then slowly declines the superstructure to the initial lifting angle and is At 20 °, the first adjustment rope and the second adjustment rope are pulled so that the arm bracket on the main arm alignment deck, and allow The superstructure is placed on arm bracket, then by the stack shell flange pair in the lower end flanges of the operating platform and deck Connect, finally unlock the first adjustment rope, the second adjustment rope, the first lifting rope group and the second lifting rope group；

S5000：The pillar of the building technology of the pillar of seawater lift pump, wherein seawater lift pump is divided into first from top to bottom Base segment to hendecyl section, first base segment collectively forms the pillar of the seawater lift pump to the tenth base segment and a top flange Superstructure, hendecyl section and a flange in the bottom collectively form the substructure of the pillar of the seawater lift pump, and seawater carries The building technology of the pillar of pump is risen, is comprised the following steps：

S5001：The superstructure and substructure of the pillar of seawater lift pump are built respectively, and step S5001 comprises the following steps：

S5011：Substrate is rolled into 11 tubular base segments respectively with veneer reeling machine, and is designated the first base segment to hendecyl Section, each of which part base segment is during roll bending, regularly using the internal diameter 120 degree fan-shaped works equal with the pillar of seawater lift pump Dress carrys out the crooked radian of inspection substrate；After each base segment completes, the pillar of the seawater lift pump is slightly less than with internal diameter The annular frock of internal diameter detect the circularity of base segment；

S5012：Base segment longitudinal slot is welded, and the longitudinal slot in the S11 on base segment tube wall is processed into welding slope by the step Simultaneously sealing weld forms it into longitudinal measure zone to mouth, and the sealing weld technique of the longitudinal measure zone is：A) the outer groove spot welding of base segment pipe → b) base segment pipe external application outer arc shape code plate interval is positioned side by side → c) welding base segment pipe internal groove → d) remove the outer arc shape code Plate → e) base segment pipe outside weld catching groove → f) in pipe with inner arc shape code plate interval it is positioned side by side → g) the outer groove of welding base segment pipe；

S5013：Base segment is spliced into splice sections, splice sections and is butted into trunnion, and the step is first coaxial to the 4th base segment by the second base segment It is spliced into the first splice sections, that the 5th base segment to the 7th base segment is coaxially spliced into the second splice sections, the 8th base segment is same to the tenth base segment Axle is spliced into the 3rd splice sections, then the first splice sections, the second splice sections, the 3rd splice sections are coaxial docking into a trunnion, the step The longitudinal measure zone of adjacent two pieces base segment staggers 180 degree in the axial direction in rapid；

S5014：Top flange, the first base segment, trunnion is integrally welded, form the top knot of the pillar of the seawater lift pump Structure；Bottom flange, hendecyl section is integrally welded, form the substructure of the pillar of seawater lift pump；

S5015：The first platform, the second platform, the 3rd platform and the 4th are welded in interval successively on the outer wall of the superstructure Platform, square first platform, the second platform, the 3rd platform and the 4th platform entangles the outer of the superstructure vertically Wall；

S5016：The superstructure, substructure and the first platform, the second platform, the 3rd platform, the 4th platform are applied respectively Fill anticorrosive paint；

S5002：The substructure of the pillar of seawater lift pump is positioned on the reserved location of hull, and lifts superstructure and its Docking；

S5003：First platform is docked with main ship deck；Second platform is docked with hull two-layer platform；Described Three layers of platform of three platforms and hull are docked；Four layers of platform of 4th platform and hull are docked.

2. the method that oil tanker according to claim 1 repacks FPSO into, it is characterised in that：

The step S1002 includes：

Step S1021：Guide chain pipe is fixedly connected with the connection member of cable stopper；

Step S1022：By cable stopper hanging on ship hull plate sidepiece, and the connection member of cable stopper is set to be fastened on support component In screens between lower supporting assembly；

Step S1023：The connection member of cable stopper is fixedly connected with upper support component and lower supporting assembly respectively, the step bag Include including：

Step S1231：Cable stopper is led into cable axle vertically hanging on the top of upper support component；

Step S1232：The cable axle of leading of cable stopper is sequentially passed through into the upper support component, the connection member of cable stopper from top to bottom And lower supporting assembly；

Step S1233：The cable axle of leading of cable stopper is welded and fixed with upper support component and lower supporting assembly, and then by cable stopper Connection member card, which is set, to be fixed on the upper support component and lower supporting assembly.

3. the method that oil tanker according to claim 2 repacks FPSO into, it is characterised in that described in the step S1011 Strengthening platform includes being arranged on the second reinforcement platform on the downside of ship hull plate；Described second, which strengthens platform, is included outside the second reinforcement Plate, upper stiffener assembly and lower stiffener assembly；The second reinforcement outside plate is fixedly welded on the ship hull plate sidepiece, and and hull Outside plate fits；The upper stiffener assembly and lower stiffener assembly be arranged in parallel, and strengthen with described second that outside plate is vertical fixes；Institute Stating stiffener assembly includes the first reinforcing plate and the second reinforcing plate；Vertically wear one end of first reinforcing plate and the second reinforcing plate Cross described second to strengthen in outside plate and ship hull plate, embedded hull and fix with hull, the other end protrudes from described second and strengthened Outside plate, for being fixedly connected with the upper support member；The lower stiffener assembly includes the 3rd reinforcing plate and the 4th reinforcing plate；Institute The one end for stating the 3rd reinforcing plate and the 4th reinforcing plate is passed perpendicularly through in the second reinforcement outside plate and ship hull plate, embedded hull simultaneously Fixed with hull；The other end protrudes from described second and strengthens outside plate, for being fixedly connected with the lower support member；Described first Reinforcing plate, the second reinforcing plate, the 3rd reinforcing plate and the 4th reinforcing plate and second are strengthened between outside plate, hull, and second strengthens Fixed between outside plate and hull using X-type groove full penetration；

In the step S1012, the central axis of the upper support component and lower supporting assembly is on the same line.

4. the method that oil tanker according to claim 1 repacks FPSO into, it is characterised in that in the step S2000,

When upper segmentation each to upper transfer platform is built, comprise the following steps：

Step S2111：Upper plate is fixed on upper moulding bed；

Step S2112：Upper support fixture provided with multiple upper through holes is weldingly fixed on upper plate；

Step S2113：Multiple upper pipes are each passed through into the upper through hole to be fixed on upper plate；

Step S2114：The two ends end of epipleural is fixedly connected with upper plate and upper support fixture respectively；

When lower segmentation each to lower transfer platform is built, comprise the following steps：

Step S2121：Lower shoe is fixed on lower moulding bed；

Step S2122：Lower support fixed plate is fixed on lower shoe；

Step S2123：Lower roof plate is fixedly connected with lower support fixed plate；The lower roof plate is provided with multiple lower through-holes；

Step S2124：Multiple lower pipes are each passed through into the lower through-hole to be fixed on lower shoe；

When lifting positioning is carried out to the upper segmentation of upper transfer platform, comprise the following steps：

Step S2211：Multiple upper limit plates are installed on ship hull plate；

Step S2212：Every grade of rib position surplus of segmentation is determined according to the ship hull plate line style data of measurement, with laser in each segmentation Mowing surplus after line, is cut using pattern, groove of having been polished after cutting；

Step S2213：By segmental hoisting, so that the lower end of segmentation is placed at mounted upper limit plate；

Step S2214：The first deck level is marked on ship hull plate with total powerstation and examines before line, first rib bit trial line and the One aft rib bit trial line, to examine the positioning of segmentation whether accurate；

Step S2215：Examine line as baseline using the first deck level, taken a little in the upper surface of upper segmentation, and adjust the position of segmentation Put, make the difference of the upper surface examine the vertical range of line identical away from the first deck level；In the rear and front end face of upper segmentation It is upper to take a little respectively, and adjust the position of segmentation, make the horizontal range of the difference of front end face away from rib bit trial line before first identical, And make horizontal range of the difference away from the first aft rib bit trial line of rear end face identical；

When welding is fixed to the upper segmentation of upper transfer platform, comprise the following steps：

Step S2221：Multiple first are installed on the upside of ship hull plate and draws code；

Step S2222：Multiple the second drawing codes corresponding with the first drawing code-phase are installed in upper segmentation, the first drawing code and second is drawn Code is on same rib bit line；

Step S2223：By drawing code screw to be fixedly connected with the first drawing code and the second drawing code, and then by the upper of upper transfer platform Segmentation is fixed on the upside of ship hull plate；

Step S2224：Side of being fitted in upper segmentation with ship hull plate sets pad on multiple, by outside pad on this and hull Plate weld is fixed；

When lifting positioning is carried out to the lower segmentation of lower transfer platform, comprise the following steps：

Step S2311：Multiple lower limiting boards are installed on ship hull plate, high-order support frame is installed on ground；

Step S2312：Lower every grade of rib position surplus of segmentation is determined according to the ship hull plate line style data of measurement, with laser at each lower point Mowing surplus after being rule in section, is cut, groove of having been polished after cutting using pattern；

Step S2313：The second deck level is marked with total powerstation on outside plate to examine before line, second after rib bit trial line and second Rib bit trial line；

Step S2314：By lower segmental hoisting, so that the lower end of lower segmentation is placed at mounted lower limiting board, and it is high by one Danger support frame holds the lower segmentation；

Step S2315：Examine line as baseline using the second deck level, taken a little in the upper surface of lower segmentation, and adjust lower segmentation Position, makes the difference of the upper surface examine the vertical range of line identical away from the second deck level；In the rear and front end of lower segmentation Taken a little respectively on face, and adjust the position of lower segmentation, make the horizontal range of the difference of front end face away from rib bit trial line before second It is identical, and make horizontal range of the difference away from the second aft rib bit trial line of rear end face identical, and make the upper pipe of segmentation with The lower pipe of lower segmentation is in same vertical straight line；

When welding is fixed to the upper segmentation of lower transfer platform, comprise the following steps：

Step S2321：Multiple three are installed on the downside of ship hull plate and draws code；

Step S2322：Multiple the 4th drawing codes corresponding with the 3rd drawing code-phase are installed in upper segmentation, the 3rd draws code and the 4th to draw Code is on same rib bit line；

Step S2323：By drawing code screw to be fixedly connected with the 3rd drawing code and the 4th drawing code, and then by under upper transfer platform Segmentation is fixed on the downside of ship hull plate；

Step S2324：Side of being fitted in lower segmentation with ship hull plate sets multiple lower pads, by the lower pad and hull Outside plate is welded and fixed；Meanwhile, multiple side pads are set in the two ends end of lower segmentation, by the side pad by each lower segmentation Connecting welding is fixed.

5. the method that oil tanker according to claim 4 repacks FPSO into, it is characterised in that：The upper plate is rolled to one Tiltedly；The upper limit plate is also accordingly tilted to side, the inclined angle of upper limit plate and the inclined angle one of upper plate Cause, and fitted with the lower surface of the upper plate；The upper support fixture and upper plate, upper pipe and upper plate, upper circle Pipe passes through CO with upper support fixture₂The mode of welding is welded and fixed；The lower supporting plate and lower shoe, lower pipe and bottom Plate, lower pipe and lower supporting plate pass through CO₂The mode of welding is welded and fixed.

6. the method that oil tanker according to claim 1 repacks FPSO into, it is characterised in that：

In the step S3012,

Piece welding zone between the first splice sections and the second splice sections of first column mutually staggers 180 °；

Piece welding zone between the second splice sections and the 3rd splice sections of first column mutually staggers 90 °；

Piece welding zone between 3rd splice sections of the first column and the 4th splice sections mutually staggers 90 °；

Piece welding zone between 4th splice sections of the first column and the 5th splice sections mutually staggers 180 °；

Piece welding zone between 5th splice sections of the first column and the 6th splice sections mutually staggers 90 °；

Piece welding zone between 6th splice sections of the first column and the 7th splice sections mutually staggers 90 °；

Piece welding zone between the first splice sections and the second splice sections of second column mutually staggers 180 °；

Piece welding zone between the second splice sections and the 3rd splice sections of second column mutually staggers 90 °；

Piece welding zone between 3rd splice sections of the second column and the 4th splice sections mutually staggers 90 °；

Piece welding zone between 4th splice sections of the second column and the 5th splice sections mutually staggers 180 °；

Piece welding zone between 5th splice sections of the second column and the 6th splice sections mutually staggers 67.5 °；

Piece welding zone between 6th splice sections of the second column and the 7th splice sections mutually staggers 70 °；

Piece welding zone between the first splice sections and the second splice sections of 3rd column mutually staggers 180 °；

Piece welding zone between the second splice sections and the 3rd splice sections of 3rd column mutually staggers 90 °；

Piece welding zone between the 3rd splice sections and the 4th splice sections of 3rd column mutually staggers 90 °；

Piece welding zone between the 4th splice sections and the 5th splice sections of 3rd column mutually staggers 180 °；

Piece welding zone between the 5th splice sections and the 6th splice sections of 3rd column mutually staggers 90 °；

Piece welding zone between the 6th splice sections and the 7th splice sections of 3rd column mutually staggers 72.5 °；

In the step S3013,

The first column is first assembled, the diagonal brace between the first column and the second column is reconnected, reassembles the second column, then connect The diagonal brace between diagonal brace and the second column and the 3rd column between first column and the 3rd column, finally assembles the 3rd column；

In the step S3000,

The docking of the splicing of splice sections and main segmentation was both splicing round mouth or was docking the symmetrical of round mouth using technique is symmetrically welded Welded on point；Wherein flare tower overall length 117m, the first main sector boss 8525mm, the second main sector boss 34825mm, the 3rd master Sector boss 38725mm, the 4th main sector boss 35125mm.

7. the method that oil tanker according to claim 1 repacks FPSO into, it is characterised in that：

In the step S4001, the first lifting rope group includes the first lifting rope and the second lifting rope, and first lifting rope and second is hung Rope is connected to the front and back of the superstructure, sets strip chock to make between first lifting rope and the second lifting rope Obtain the first lifting rope and the second lifting rope 15 angles ° of formation；The second lifting rope group includes the 3rd lifting rope and the 4th lifting rope, the described 3rd Lifting rope and the 4th lifting rope are connected to the front and back of the superstructure, are set between the 3rd lifting rope and the 4th lifting rope Strip chock causes the 3rd lifting rope and the 4th lifting rope 15 angles ° of formation；

In the step S4003, the acute angle is 75 °；

In the step S4004, the first adjustment rope and the second adjustment rope are first unlocked, then sequentially unblock first is hung Rope, the 3rd lifting rope, the second lifting rope, the 4th lifting rope；

The first adjustment rope, the second adjustment rope, the first lifting rope, the second lifting rope, the 3rd lifting rope and the 4th lifting rope are tensile strength Lifting rope not less than 20 tons.

8. the method that oil tanker according to claim 1 repacks FPSO into, it is characterised in that：In the step S5013,

In the step S5013, splicing welding is carried out to base segment or splice sections are carried out before butt welding, straight line is surveyed using steel wire is drawn Mode ensure the linearity of trunnion being made, both in the tube wall circular arc at some base segment two of the coaxial placement of level 0 °, 90 °, determine on 180 ° of positions to draw a steel wire between three groups of datum marks, and every group of datum mark of correspondence respectively, measured by spacing Whether steel wire determines the depth of parallelism of each base segment with the distance of base segment tube wall, and then determine the axle center of each part base segment in same straight line On, such as the linearity margin of tolerance exceeds ± 2mm, then corrects the placement posture of base segment；

In the step S5013, when splicing welding or splice sections progress butt welding are carried out to base segment, first the base segment mouth of pipe is processed Into welding groove, simultaneously sealing weld forms it into annular solder zone, and the sealing weld technique of the annular solder zone is：H) outside base segment pipe Annular groove spot welding → i) base segment pipe external application outer arc shape code plate interval is positioned side by side → j) welding base segment pipe annular groove → k) Remove the outer arc shape code plate → l) the outer circular weld catching groove → m of base segment pipe) with inner arc shape code plate interval and it is ranked in base segment pipe Position → n) the outer groove of welding base segment pipe；The step j) and n) in, when being welded to circular weld, by the way of being symmetrically welded, Both synchronously welded on the axial symmetry point of the annular solder zone；

In the step S5000, the outer arc shape code plate is the square plate of one side arc-shaped recess, its circular arc internal diameter and the sea The pillar of water elevator pump is equal, and the distance on its arc top to one side corresponding thereto being recessed is not less than 200mm；The inner arc shape code Plate is the square plate of one side arc evagination, and its circular arc internal diameter is equal with the pillar of the seawater lift pump, the arc top of its evagination Distance to one side corresponding thereto is not less than 200mm.

9. the method that the oil tanker according to any one of claim 3,5,6,7 or 8 repacks FPSO into, it is characterised in that：Change Make in technique to the closing up of pipeline section, splice and butt-joint process is using the technique being symmetrically welded, both in the symmetric points of pipeline section round mouth On welded successively.

10. the method that oil tanker according to claim 9 repacks FPSO into, it is characterised in that：The S1000 multipoint moorings tug Chain device dependency structure building technology, the building technology of S2000 transfer platforms, S3000 flare towers building technology, S4000 cranes The hoisting of superstructure, the building technology of the pillar of S5000 seawater lift pumps can simultaneously and concurrently construct.