CN106114754A - Oil tanker repacks the method for 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 build process, the build process of S2000: transfer platform, S3000: flare tower build process, S4000: the build process of the pillar of the hoisting of crane superstructure and S5000: seawater lift pump, pipeline section is closed up by above-mentioned technique, splices and butt-joint process all uses the technique being symmetrically welded and above-mentioned technique can run simultaneously construction.The oil tanker of the present invention repacks that the method for FPSO makes full use of existing welding equipment, hanging device and measure of precision equipment etc., scientific allocation has the human resources of correlation technique ability into, make that efficiency of construction is high, construction cost is low and the construction quality of each subsystem meets the running standard of FPSO ship, the construction quality of FPSO ship is effectively ensured and then effectively extends the rework time node of FPSO ship.

Description

Oil tanker repacks the method for FPSO into

Technical field

The present invention relates to ship domain, particularly relate 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 It is called for short " FPSO ") as " offshore oil factory ", the mixed liquors such as the oil gas water from sub-sea drilled wells can be become through processed Qualified crude oil or natural gas storing, at oil cargo tank, flow to the oil shuttled back and forth when reserves reach to a certain degree through outer communication system Wheel, it is convenient to provide power for marine oil tanker, has that capacity of anti-storm is strong, it is deep to adapt to depth of water scope, storage/emptying ability is big 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 work and be all indispensable module on FPSO ship.Oil tanker is repacked into The construction technology of FPSO inevitably will relate to the construction for said system or repacking.

Multi-buoy mooring system i.e. mooring system and hull have multiple contact point, and wherein mooring system includes many systems pool dress Putting, it is solid that described mooring gear includes being fixed on a chain apparatus of hull upper end, the cable stopper being fixed on hull sides and cable stopper The fixed guide chain pipe connected and mooring cable, described mooring cable is after from described, chain apparatus is drawn, around being located on described cable stopper and leading to Cross described guide chain piping pool seabed.Described 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 when described cable stopper system is installed first by the connection member of cable stopper and upper support member and Lower support member is fixing to be connected, then after guide chain pipe is fixed on cable stopper seat, integral hoisting is welded on ship hull plate, then When installing fixing due to cable stopper, not only need to consider whole cable stopper the position of ship hull plate and with the laminating of ship hull plate Degree, it is also contemplated that the position between the angle of Kong Yuqi chain apparatus that snubs the chain of cable stopper, guide chain Guan Yuqi chain apparatus and angle Etc. problem, the difficulty of integral hoisting welding will be increased, strengthen 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 is connected by flexible pipe by the transfer platform in oil vapor treatment system with drilling platforms, it is achieved crude oil defeated Enter, process, store and export.Transfer platform generally includes and is fixed on the upper transfer platform of ship hull plate side and lower transfer platform； Described upper transfer platform and lower transfer platform are generally made up of base plate, top board, gripper shoe and pipe.Transfer platform is as FPSO weight The parts wanted, stability that on it, transfer platform and lower transfer platform are built and the accuracy of construction precision, have most important Effect.

Flare tower (Flare stack) be a kind of in high-altitude open burning mode to process the device of waste gas, it is marine Visual plant in hydrocarbon production system.General flare tower is built needs to consider the feature of environmental protection and safety, all the highest to tower body Degree has concrete demand, flare tower main composition to include: vertical three root posts, the horizontal or oblique each column of connection multistage 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 rupture Feature, the traditional construction mode of flare tower is that each main segmentation constructed is built on ground, then main segmentation is lifted into respectively High-altitude is also docked in high-altitude.Such mode of construction needs to build the highest scaffold, not only increases cost, substantial amounts of height Idle job is the most dangerous.Meanwhile, if main segmentation is oversize, it is necessary to build several splice sections to be spliced into main segmentation, respectively spell The splicing process of the section of connecing directly determines the structural strength of main segmentation, and then also determines the structural strength of flare tower.

Crane (Crane), 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 It is arranged on the equipment of the handling goods of board.Crin hangs and is mainly made up of stack shell, operating platform, main arm and joint arm, Operating platform is assemblied on stack shell by the flange assembly bottom it, operating platform and main arm lateral connection, main arm and pass Joint arm lateral connection, operating platform, main arm and joint arm collectively form the superstructure of crane.The routine of crane Hanging method is: first installing stack shell above deck, then lifting operating platform docks with stack shell, finally lifts main arm and pass Joint arm docks with operating platform.This lifting also aloft docks the flange water that the method for assembling should ensure in horizontal direction Flat, ensure that the flange in vertical direction is vertical again, could dock smoothly.But, lifting precision each time is all by wind-force etc. The impact of environmental factors and be difficult to control, the difficulty aloft docking assembling is very big, and often the construction period of hoisting process is all Longer, cost is the biggest.

Seawater lift pump belongs to seawater lift processing system, and it is worked under sea level and is promoted by lifting pipe by sea water On FPSO platform, it provides cooling water and industrial water for other equipment on FPSO.Due to the long-term work of seawater lift pump Make inside sea water, for ensureing its stable work in work, generally to build one section of pillar and allow seawater lift pump be fixed on pillar Tube chamber bottom work, so can effectively slow down seawater lift pump operating time vibration be avoided that again halobiontic twining Around.Owing to the pillar inner chamber of seawater lift pump needs to install the miscellaneous part such as seawater lift pump, sea water purifier, so building In time, require higher to circularity and the linearity of the pillar of seawater lift pump, simultaneously because pillar bottom work inside sea water 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 colliding and damaging seawater lift pump in work progress, even can affect the circularity of pillar with straight Dimension, does remediation after the damage that collides again, and the total quality of the pillar of seawater lift pump will be had a greatly reduced quality.Protect After pipe damages deformation, the secondary that the later stage is carried out on hull constructs the antiseptic effect of its efficiency of construction and secondary application also by serious Impact, this adds the maintenance cost in construction cost and later stage virtually.

Summary of the invention

The invention reside in the shortcoming overcoming prior art with not enough, it is provided that a kind of oil tanker repacks the method for FPSO into.

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

S1000:Multipoint mooring cable stopper dependency structure build process, comprises the steps:

Step S1001: ship hull plate sidepiece is strengthened and consolidates；Described step S1001 includes:

Step S1011: fix a reinforcement platform along ship hull plate sidepiece；Described reinforcement platform arranges stiffener assembly With lower stiffener assembly；

Step S1012: upper support component is fixed on described upper stiffener assembly, lower supporting assembly is fixed on described under On stiffener assembly；

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

S2000:The build process of transfer platform, this step comprises the steps:

Step S2001: sectional construction: upper transfer platform is divided into multiple upper segmentation, lower transfer platform is divided into multiple under Segmentation, builds each segmentation；

Step S2002: upper segmentation is carried out lifting location 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: lower segmentation is carried out lifting location and is welded and fixed: delimit lower split fix line, by each lower segmentation Lifting is closed up and is weldingly fixed on the downside of ship hull plate；

S3000:Flare tower build process, comprises the steps:

S3001: build four main segmentations；Wherein, build each main segmentation all to comprise the following steps:

S3011: build first group of seven splice sections, builds second group of seven splice sections, builds the 3rd group of seven splice sections；

S3012: seven splice sections of first group are spliced into the first column, the piece weldering of the most adjacent two splice sections District is the most out-of-line, seven splice sections of second group are spliced into the second column, the spelling of the most adjacent two splice sections Seam welding district is the most out-of-line, seven splice sections of the 3rd group are spliced into the 3rd column, the most adjacent two splice sections Piece welding zone the most out-of-line；

S3013: build some diagonal braces, described diagonal brace can horizontal or oblique be connected to described first column, the second column, Multistage truss framework, described diagonal brace, the first column, the second column, the 3rd column is become to be assembled into main segmentation together between three columns；

S3002: the corresponding column of four main segmentations is docked respectively the flare tower that composition is complete；

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

S4001: install main lifting rope in superstructure, the upper end of described main lifting rope is connected with the suspension ring on crane barge arm, This main lifting rope includes that the first lifting rope group and the second lifting rope group, described first lifting rope group are positioned at 6834mm on the left of the center of gravity of superstructure Place, described second lifting rope group are positioned on the right side of the center of gravity of superstructure at 6834mm, then adjust the height of crane barge arm so that institute State the first lifting rope group and the second lifting rope group formed one 10 ° initially lift by crane angle；

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

S4003: integral lifting superstructure also aloft adjusts the angle of main arm and joint arm, due to crane barge arm The rings height on top is fixed, and along with the slow rising of this superstructure, described initial lifting angle incrementally increases accordingly, works as institute State initial lifting angle when reaching 12 °, start the hydraulic selector on described operating platform and regain described joint arm so that be described Main arm is narrowed down to an acute angle with the initial angle of joint arm by obtuse angle；

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

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

S5001: building superstructure and substructure of the pillar of seawater lift pump respectively, step S6001 includes following Step:

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

S5012: base segment longitudinal slot welds, and the longitudinal slot on base segment tube wall in described S11 is processed into weldering by this step Connecing groove and sealing weld forms it into longitudinal measure zone, the sealing weld technique of described longitudinal measure zone is: a) the outer groove of base segment pipe Spot welding → b) base segment pipe external outer arc shape code plate interval also registration → c) welding base segment pipe internal groove → d) remove described outer arc Shape code plate → e) base segment pipe outside weld catching groove → f) manage interior inner arc shape code plate interval registration → g) weld slope outside base segment pipe Mouthful；

S5013: base segment is spliced into splice sections, splice sections is butted into trunnion, this step first by the second base segment to the 4th base segment Coaxially be 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, In this step, the longitudinal measure zone of adjacent two pieces base segment staggers 180 degree the most in the axial direction；

S5014: top flange, the first base segment, trunnion is integrally welded, forms pillar upper of described seawater lift pump Portion's structure；By integrally welded to bottom flange, hendecyl section, form substructure of the pillar of seawater lift pump；

S5015: on the outer wall of described superstructure successively interval welding the first platform, the second platform, the 3rd platform and 4th platform, square described first platform, the second platform, the 3rd platform and the 4th platform the most vertically entangle described superstructure Outer wall；

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

S5002: position substructure of the pillar of seawater lift pump on the reserved location of hull, and lift superstructure Interfaced；

S5003: described first platform docks with main ship deck；Described second platform docks with hull two-layer platform；Institute State three layers of platform of the 3rd platform and hull to dock；Four layers of platform of described 4th platform and hull dock.

Further, described step S1002 includes:

Step S1021: be connected fixing with the connection member of cable stopper for guide chain pipe；

Step S1022: by cable stopper hanging on ship hull plate sidepiece, and make the connection member of cable stopper be fastened on support In screens between assembly and lower supporting assembly；

Step S1023: is connected fixing with upper support component and lower supporting assembly respectively for the connection member of cable stopper, wraps Include:

Step S1231: cable stopper led 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 described upper support component, the connection of cable stopper from top to bottom Parts 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 snub the chain The connection member card of device sets and is fixed on described upper support component and lower supporting assembly.

Further, in described step S1011, described reinforcement platform includes the second reinforcement being arranged on the downside of ship hull plate Platform；Described second strengthens platform includes the second reinforcement outside plate, upper stiffener assembly and lower stiffener assembly；Described second strengthens outside plate It is fixedly welded on described ship hull plate sidepiece, and fits with ship hull plate；Described upper stiffener assembly is parallel with lower stiffener assembly Arrange, and strengthen with described second that outside plate is vertical fixes；Described upper stiffener assembly includes the first reinforcing plate and the second reinforcing plate；Institute The one end stating the first reinforcing plate and the second reinforcing plate passes perpendicularly through described second reinforcement outside plate and ship hull plate, in embedding hull also Fixing with hull, the other end protrudes from described second and strengthens outside plate, is connected for fixing with described upper support member；Add under described Strong assembly includes the 3rd reinforcing plate and the 4th reinforcing plate；One end of described 3rd reinforcing plate and the 4th reinforcing plate passes perpendicularly through described Second strengthens outside plate and ship hull plate, in embedding hull and fixes with hull；The other end protrudes from described second and strengthens outside plate, uses It is connected in fixing with described lower support member；Described first reinforcing plate, the second reinforcing plate, the 3rd reinforcing plate and the 4th reinforcing plate with Second strengthens between outside plate, hull, and second strengthens all using X-type groove full penetration to fix between outside plate and hull；

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

Further, in described step S2000,

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

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

Step S2112: the upper support fixture being provided with multiple upper through hole is weldingly fixed on upper plate；

Step S2113: multiple upper pipes are each passed through described upper through hole and are fixed on upper plate；

Step S2114: be connected fixing with upper plate and upper support fixture respectively for the end, two ends of epipleural；

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

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

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

Step S2123: connect fixing to lower roof plate and lower support fixed plate；Described lower roof plate is provided with multiple lower through-hole；

Step S2124: multiple lower pipes are each passed through described lower through-hole and are fixed on lower shoe；

When the upper segmentation of upper transfer platform is carried out lifting location, comprise the steps:

Step S2211: install multiple upper limit plate on ship hull plate；

Step S2212: the ship hull plate line style data according to measuring determine segmentation every grade rib position surplus, with laser at each point Mowing surplus after line in section, uses pattern cutting, groove of having polished after cutting；

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

Step S2214: mark the first deck level inspection line, rib bit trial line before first on ship hull plate with total powerstation With the first aft rib bit trial line, the most accurate with the location checking segmentation；

Step S2215: with the first deck level inspection line as baseline, the upper surface in upper segmentation takes a little, and adjusts segmentation Position, make the difference of this upper surface vertical dimension away from the first deck level inspection line identical；Before and after upper segmentation two Take a little respectively on end face, and adjust the position of segmentation, make difference horizontal range of rib bit trial line before first of front end face Identical, and make the difference of the rear end face horizontal range away from the first aft rib bit trial line identical；

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

Step S2221: install multiple first on the upside of ship hull plate and draw code；

Step S2222: install in upper segmentation multiple draw code-phase corresponding with first second draw code, this first draws code and Two draw code on same rib bit line；

Step S2223: by draw yard screw by this first draw code and second to draw code is fixing connects, and then by upper transfer platform Upper segmentation be fixed on the upside of ship hull plate；

Step S2224: with ship hull plate laminating side, pad on multiple is set, by pad on this and ship in upper segmentation External plate is welded and fixed；

When the lower segmentation of lower transfer platform is carried out lifting location, comprise the steps:

Step S2311: install multiple lower limiting board on ship hull plate, installs high-order bracing frame on ground；

Step S2312: the ship hull plate line style data according to measuring determine every grade of rib position surplus of lower segmentation, with laser respectively Mowing surplus after line in lower segmentation, uses pattern cutting, groove of having polished after cutting；

Step S2313: mark the second deck level inspection line, rib bit trial line and the before second on outside plate with total powerstation 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 This lower segmentation is held by this high-risk bracing frame；

Step S2315: with the second deck level inspection line as baseline, the upper surface in lower segmentation takes a little, and adjusts lower point The position of section, makes the difference of this upper surface vertical dimension away from the second deck level inspection line identical；Before and after lower segmentation Take a little respectively in both ends of the surface, and adjust the position of lower segmentation, make difference level of rib bit trial line before second of front end face Apart from identical, and make the difference of the rear end face horizontal range away from the second aft rib bit trial line identical, and make the upper circle of segmentation The lower pipe of pipe and lower segmentation is on same vertical straight line；

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

Step S2321: install the multiple 3rd on the downside of ship hull plate and draw code；

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

Step S2323: by drawing yard screw to draw code and the 4th to draw the fixing connection of code by the 3rd, and then by upper transfer platform Lower segmentation be fixed on the downside of ship hull plate；

Step S2324: in lower segmentation with ship hull plate laminating side multiple lower pad is set, by this lower pad with Ship hull plate is welded and fixed；Meanwhile, multiple sides pad is set in the end, two ends of lower segmentation, by this side pad by under each Segmentation connecting welding is fixed.

Further, described upper plate is to lopsidedness；Described upper limit plate the most accordingly to lopsidedness, the described upper limit The angle that position plate tilts is consistent with the angle that upper plate tilts, and fits with the lower surface of described upper plate；Described upper support Fixture all passes through CO with upper plate, upper pipe with upper support fixture with upper plate, upper pipe₂The mode of welding is welded solid Fixed；Described lower supporting plate all passes through CO with base plate, lower pipe with lower supporting plate with lower shoe, lower pipe₂The mode of welding is welded Fixing.

Further, in described step S3012,

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

In described step S3013,

First assemble the first column, reconnect the diagonal brace between the first column and the second column, reassemble the second column, then Connecting the diagonal brace between the diagonal brace between the first column and the 3rd column and the second column and the 3rd column, finally assembling the 3rd is stood Post；

In described step S3000,

The splicing of splice sections and the docking of main segmentation all use and are symmetrically welded technique, are both splicing round mouth or are docking round mouth Weld on point of symmetry；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 described step S4001, described first lifting rope group includes the first lifting rope and the second lifting rope, described One lifting rope and the second lifting rope are connected to the front and back of this superstructure, set between described first lifting rope and the second lifting rope Putting strip chock makes the first lifting rope and the second lifting rope form 15 angles °；Described second lifting rope group includes the 3rd lifting rope and Four lifting ropes, described 3rd lifting rope and the 4th lifting rope be connected to the front and back of this superstructure, described 3rd lifting rope and Arranging strip chock between 4th lifting rope makes the 3rd lifting rope and the 4th lifting rope form 15 angles °；

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

In described step S4004, first unlock described first and adjust rope and second and adjust rope, unlock the most sequentially One lifting rope, the 3rd lifting rope, the second lifting rope, the 4th lifting rope；

Described 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 The intensity lifting rope not less than 20 tons.

Further, in described step S5013,

In described step S5013, base segment is carried out splicing welding or splice sections carry out docking welding before, use draw steel wire to survey The trunnion that the mode of straight line ensures to make linearity, both tube wall circles at some base segment two of the coaxial placement of level 0 ° of arc, 90 °, determine three groups of datum marks respectively on 180 ° of positions, and correspondence is often organized and is drawn a steel wire between datum mark, passes through spacing The distance of measuring steel wire and base segment tube wall determines the depth of parallelism of each base segment, and then determines that whether the axle center of each part base segment is same On straight line, if the linearity margin of tolerance is beyond ± 2mm, then revise the placement attitude of base segment；

In described step S5013, base segment is carried out splicing welding or splice sections carry out docking welding time, first by the base segment mouth of pipe Being processed into bevel for welding and sealing weld forms it into annular solder zone, the sealing weld technique of described annular solder zone is: h) base segment Pipe outer ring groove spot welding → i) base segment pipe external outer arc shape code plate interval also registration → j) welding base segment pipe annular groove → k) remove described outer arc shape code plate → l) base segment pipe outer ring weld seam catching groove → m) base segment pipe interior inner arc shape code plate interval is also Registration → n) the outer groove of welding base segment pipe；Described step j) and n) in, when circular weld is welded, use the side that is symmetrically welded Formula, both synchronized to weld on the axial symmetry point of described annular solder zone；

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

Further, pipeline section closed up by reforming technology, splice and butt-joint process all uses the technique being symmetrically welded, both The point of symmetry of pipeline section round mouth weld successively.

Further, described S1000 multipoint mooring cable stopper dependency structure build process, the construction of S2000 transfer platform Technique, S3000 flare tower build process, the hoisting of S4000 crane superstructure, the pillar of S5000 seawater lift pump Build process can run simultaneously construction.

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

The multipoint mooring cable stopper dependency structure build process of S1000, by arranging reinforcement platform at ship hull plate, makes Prop up support component and lower supporting assembly is fixed on ship hull plate by this reinforcement platform, then the connection member of cable stopper is fixed on On upper support component and lower supporting assembly, it is ensured that cable stopper and the firm installation of hull.By platform and upper support will be strengthened Assembly, lower supporting assembly are assembled apart and build, and make construction processing more precisely flexibly.Further, support group is first installed Part and lower supporting assembly so that it is behind the position set, more fixing cable stopper is installed, the mode that this substep is installed, the most generous To each module position and the adjustment of angle, it is ensured that cable stopper installation site and angle are all in claimed range；By After the connection member of cable stopper is fastened in screens, cable axle will be led and vertically hang vertical so that it is sequentially pass through described upper from top to bottom Support component, the connection member of cable stopper and lower supporting assembly, and then make to lead cable axle and described upper support component, the connection of cable stopper Parts and lower supporting assembly are fixed, it is ensured that cable stopper is connected with upper support component and the fixing of lower supporting assembly；

The build process of the transfer platform of S2000, by carrying out sectional construction, determining to upper transfer platform and lower transfer platform Position, lift and weld, make construction transfer platform out the firmest firm, more stable；By to upper transfer platform and under Transfer platform carries out sectional construction, positions, lifts and weld, and makes construction transfer platform out the firmest firm, more surely Fixed；Further, the method positioned by lifting, it is ensured that transfer platform is precisely fixed on the position of setting；

The flare tower build process of S3000, only need to be at ground construction during construction flare tower, it is not necessary to build the hands of work high above the ground Foot rest, 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 brings；The spelling of contiguous concatenation section Mutually stagger certain angle in seam welding district, 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 the most progressively assemble, and are easily controlled diagonal brace Cutting accuracy, efficiency of construction is high；The splicing of splice sections and the docking of main segmentation all use and are symmetrically welded technique, it is to avoid welded Journey occurring, stress deformation affects structural strength；

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

The construction of the pillar of the seawater lift pump of S5000 and hoisting, be split up into longer by the pillar of seawater lift pump Superstructure build with shorter substructure two parts, carry out lifting after having built again and close up, superstructure length Reaching 30m and substructure only has about 3m, superstructure and substructure special anticorrosive paint of equal application, such length is divided After pillar structure entirety application can be farthest avoided in section design, hoisting process occurs paint breakage, effectively reduces weight The overcoating dress duration；Substructure of pillar, close to dock bottom, needs outside its intracavity to install the miscellaneous parts such as seawater lift pump, is designed to Short tube both can facilitate pillar overall and other equipment fixed and positioned, carries out local after also reducing pillar structure installation The difficulty of touch-up paint；Further, the building course of base segment pipe uses easy fan-shaped frock and annular frock to measure pipe Circularity, the most simple and convenient but also can reach precision controlling requirement, trunnion building course uses and draws the way of steel wire to control trunnion Linearity, these desirable easy devices of whipping can reach the required precision of pillar and can effectively reduce again and produce into method This.

In order to be more fully understood that and implement, describe the present invention below in conjunction with the accompanying drawings in detail.

Accompanying drawing explanation

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

Fig. 2 is the plan structure schematic 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 the part of 1-A 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 upper support component and the structural representation of 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 of segmentation on transfer platform in the present invention；

Figure 16 is the overall structure schematic diagram of segmentation on transfer platform in the present invention；

Figure 17 is the overall structure schematic diagram of segmentation under transfer platform under the present invention；

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

Figure 19 is the side view of segmentation on upper transfer platform；

Figure 20 is the sectional view of segmentation on upper transfer platform；

Figure 21 is the welding schematic diagram of segmentation on upper transfer platform；

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

Figure 23 is the side view of segmentation under lower transfer platform；

Figure 24 is that under lower transfer platform, segmentation pad arranges structural representation；

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

Figure 26 is the stepwise schematic views of the flare tower in the large torch tower build process of the present invention.

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

Figure 28 is the build process 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.

Detailed description of the invention

The oil tanker of the present invention repacks the method for FPSO into, the reform technology including following: the relevant knot of multipoint mooring cable stopper Build make and hoisting, the build process of transfer platform, flare tower build process, the hoisting of crane superstructure and The build process of the pillar of seawater lift pump, the detailed description of the invention of each FPSO reform technology above-mentioned described separately below.

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

Referring to Fig. 1 to Fig. 5, Fig. 1 is that multipoint mooring cable stopper dependency structure of the present invention builds flow chart；Fig. 2 is this The plan structure schematic 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 the part of 1-A 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, and wherein, the bow stern of hull respectively arranges 2 groups, hull The mooring system 1-10 of bow or stern is symmetrical.Often group mooring system 1-10 includes 6 anchor chain devices, each anchor chain device It is correspondingly arranged 1 cable stopper.The present invention illustrates with the method installing the cable stopper of one group of mooring system 1-10.

Multipoint mooring cable stopper installation method, comprises the steps:

Step S1001: ship hull plate sidepiece is strengthened and consolidates.

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

Described step S1001 includes:

Step S1011: fix a reinforcement platform 1-1 along hull 1-20 outside plate sidepiece；Described reinforcement platform 1-1 is arranged Upper stiffener assembly 122 and lower stiffener assembly 123.

Described reinforcement platform 1 includes the first reinforcement platform 1-11 being arranged on the upside of hull 1-20 outside plate sidepiece and is arranged on The second reinforcement platform 1-12 on the downside of hull 1-20 outside plate.Described first strengthens platform 1-11 for being fixed on outside described hull 1-20 First reinforcement outside plate 1-11 of plate sidepiece.Described second strengthens platform 1-12 includes the second reinforcement outside plate 1-121, upper stiffener assembly 1-122 and lower stiffener assembly 1-123.Described second strengthens outside plate 1-121 is fixedly welded on the outside plate sidepiece of described hull 1-20, And fit with the outside plate of hull 1-20；Described upper stiffener assembly 1-122 and lower stiffener assembly 1-123 be arranged in parallel, and with institute State the outer 1-121 plate of the second reinforcement vertically to fix.

Described upper stiffener assembly 1-122 includes the first reinforcing plate 1-1221 and the second reinforcing plate 1-1222.Described first adds One end of strong plate 1-1221 and the second reinforcing plate 1-1222 passes perpendicularly through described second and strengthens outside outside plate 1-121 and hull 1-20 Plate, in embedding hull 1-20 and fixes with hull 1-20, and the other end protrudes from described second and strengthens outside plate 1-121, is used for and institute State the fixing connection of a support component part 1-2.

Described lower stiffener assembly 1-123 includes the 3rd reinforcing plate 1-1231 and the 4th reinforcing plate 1-1232.Described Acanthopanan trifoliatus (L.) Merr. One end of strong plate 1-1231 and the 4th reinforcing plate 1-1232 passes perpendicularly through described second and strengthens outside outside plate 1-121 and hull 1-20 Plate, in embedding hull 1-20 and fixes with hull 1-20；The other end protrudes from described second and strengthens outside plate 1-121, is used for and institute State the fixing connection of lower support member 1-3.

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

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 between outside plate 1-121, hull 1-20, and second strengthens all adopting between outside plate 1-121 and hull 1-20 Fix with X-type groove full penetration；Described second strengthens outside plate 1-121, 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 all use the high strength steel of 40mmDH36-Z and 30mmDH36-Z It is made.

Platform 1-1 is strengthened for the most firm, between described 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.

For the most firm hull 1-20, the outside plate of hull 1-20 is the most also reequiped by the present invention, by hull 1- The outside plate of 20 all repacks the sheet material of 25mmAH36-Z into, in bulk in hull 1-20 cabin.

It is prefabricated that the present invention first carries out segmentation to reinforcement platform 1-1, and segmentation is strengthened platform 1-11 and second and strengthened flat first Platform 1-12 builds, prefabricated after be then assembled into a complete cross section and hang in depressed place inner position and close up into hull 1-20.And by described first Outside 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 are strengthened Plate 1-121 is divided in same segmentation, effectively ensure that the first reinforcing plate 1-1221, the second reinforcing plate 1-1222, Acanthopanan trifoliatus (L.) Merr. Strong spacing between plate 1-1231 and the 4th reinforcing plate 1-1232, decreases welding difficulty.With strengthening outside plate simultaneously when building Reinforcement platform 1-1 can match with the outside plate line style of hull 1-20, the connection making hull 1-20 and cable stopper is more firm.

The prefabricated segmentation strengthening platform 1-1 is used and counter makes mode by the present invention, using the outer plate surface of hull 1-20 as moulding bed Face is built.

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

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

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

Lead, on described upper support component 1-2, the central shaft leading cable cylinder 1-31 under cable cylinder 1-21 and lower supporting assembly 1-3 Line is on same vertical curve.Concrete, at chain apparatus, axis hole centrage is set, under hull 1-20 rising of hull 1-20 top Be configured to sample centrage on floor, portion, adjustment is led cable cylinder 1-21 and under lead the position of cable cylinder 1-31, make to lead cable cylinder 1-21 and Under lead the central axis of cable cylinder 1-31 and axis hole centrage and sample centrage on same vertical curve.

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

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

Wherein, described step S1002 includes:

Step S1021: be connected fixing with connection member 1-51 of cable stopper for guide chain pipe 1-52.

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

Step S1023: 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, described step S1023 includes:

Step S1231: cable stopper led 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 described upper support component 1-2 from top to bottom, snubs the chain Connection member 1-51 of device and lower supporting assembly 1-3；

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 Fixing, and then set the connection member 1-51 card of cable stopper to be fixed on and prop up support component 1-2 and be to prop up between support component 1-3.

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

In the present invention, before cable stopper is installed, leads under lower supporting assembly 1-3 and a support tune is set below cable cylinder 1-31 Engagement positions 1-6, arranges one between upper support component 1-2 and lower supporting assembly 1-3 and turns to adjusting apparatus 1-7.Simultaneously by guide chain Pipe 1-52 is weldingly fixed in connection member 1-51 of cable stopper.Then connection member 1-51 of cable stopper is hung vertical, make to snub the chain Connection member 1-51 of device is fastened in described screens.The cable axle 1-53 that leads of cable stopper is vertically hung vertical, passes through the most successively Wear described upper support component on lead and under cable cylinder 1-21, connection member 1-51 of cable stopper and lower supporting assembly, lead cable cylinder 1- 31, make cable stopper lead cable axle 1-53 with this on lead cable cylinder 1-21, connection member 1-51 of cable stopper and under to lead cable cylinder 1-31 solid Fixed.Regulation cable stopper lead turning to of cable axle 1-53, and turn to adjusting apparatus 1-7 to fix described in passing through, then cable axle 1-53 will be led With lead on this cable cylinder 1-21, connection member 1-51 of cable stopper and under lead cable cylinder 1-31 and be welded and fixed.Regulation guide chain pipe 1-52's Position and angle, and be welded and fixed by described supporting and adjusting device 1-6.Again by mooring cable 1-9 from draw in chain apparatus 1-8 Go out, snub the chain on hole, by described guide chain pipe 1-53 mooring seabed around be located at described cable stopper.

In the present invention, described supporting and adjusting device 1-6 includes on the main support column 1-61 of accumbency, fixing main support column many Root first is fixed bar 1-62, second is fixed bar 1-63 and spring assembly 1-64.During fixing described supporting and adjusting device, by described the The one lower supporting plate 1-32 fixing bar 1-62 and described lower supporting assembly is welded and fixed, and adjusts the described second position fixing bar Put so that it is end fits in the outside plate of hull 1-20.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, after the angle location and installation according to cable chain demand, is filled by spring Put 1-64 to be welded and fixed with guide chain pipe 1-52, so that the angle that is flapped toward of guide chain pipe 1-52 is fixed.

In the present invention, described in turn to and adjust assembly 1-7 and include being fixed on and prop up support component 1-2's and lower supporting assembly 1-3 Sleeve pipe 1-71 and be fixed on the pipe 1-72 led on cable axle 1-53 of cable stopper.Turning of cable axle 1-53 is led described in adjusting Backward, described pipe 1-72 is inserted in described sleeve pipe 1-71, and is fixed through described pipe 1-72 and sleeve pipe 1-71 by screw, And then realize the fixing connection leading cable axle 1-53.

In the present invention, often group mooring point arranges 6 cable stoppers altogether, each nearly weighs 60T.

The build process of described transfer platform:

It is the structural representation of transfer platform of the present invention please refer to Figure 12 and Figure 13, Figure 12；Figure 13 is that the present invention is defeated The construction flow chart of oil platform.The build process of this transfer platform, comprises the steps:

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

In view of elevating capacity and the facility of construction technology of crane, upper transfer platform 2-1 is divided into eight upper segmentations, will Lower transfer platform 2-2 is divided into eight lower segmentations and builds.

Referring to Figure 14 to Figure 16, 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 of segmentation on transfer platform in invention；Figure 16 is that in the present invention, on transfer platform, the overall structure of segmentation is shown It is intended to.

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

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

In the present invention, described upper plate 2-11 to lopsidedness, and and horizontal plane between shape have angle, the angle of this angle Degree scope is 30 °-90 °.Concrete, described upper plate 2-11 tilts from top to bottom, and when building, described upper plate 2-11 tilts Lower end be fixed on ship hull plate Y.

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

In the present invention, it is upper be fixed on upper backup pad that described upper support fixture 2-12 includes upper backup pad 2-121 Top board 2-122.For strengthening the stability of upper transfer platform 2-1, between described 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 described upper through hole and are fixed on upper plate 2-11.

Step S2114: the end, two ends of epipleural 2-14 is solid with upper plate 2-11 and upper support fixture 2-12 respectively Fixed connection.

In the present invention, described epipleural 2-14 is the bending plate being made up of the first side plate 2-141 and the second side plate 2-142, The end, one end of this first side plate 2-141 is fixing with the end, one end of the second side plate 2-142 to be connected, described first side plate 2-141 Other end end fix with upper plate 2-11, the other end end of described second side plate 2-142 and upper support fixture 2-12 Upper plate 2-122 fixing connect.

In the present invention, for strengthening the stability of upper transfer platform 2-1, upper pipe 2-13 and upper plate 2-11, on pipe Fix also by upper reinforcing plate 2-15 between 2-13 and upper support fixture 2-12；And described upper support fixture 2-12 is with upper Base 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- CO is passed through between the end, two ends of 14 and upper plate 2-11, upper support fixture 2-12₂The mode of welding is welded and fixed.

It is the overall structure schematic diagram of segmentation under the present invention please refer to Figure 17, Figure 17.

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

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

In the present invention, described lower shoe 2-21 is a horizontal plate.

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

Step S2123: be connected fixing for lower roof plate 2-23 and lower supporting plate 2-22；Described lower support fixture is provided with many Individual lower through-hole；

Step S2124: multiple lower pipe 2-24 are each passed through described lower through-hole and are fixed on lower shoe 2-21；

In the present invention, for strengthening the stability of lower transfer platform 2-2, lower shoe 2-21 is further fixed on floor, described Floor supports fixing lower roof plate 2-23 together with lower supporting plate 2-22；And at lower pipe 2-24 and lower shoe 2-21, lower pipe Fix also by lower reinforcing plate 2-25 between 2-24 and lower roof plate 2-23.

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

Step S2002: upper segmentation is carried out lifting location 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.

It it is the location figure of the upper segmentation of upper transfer platform please refer to Figure 18 to Figure 19, Figure 18；Figure 19 is that upper oil transportation is put down The side view of segmentation on platform.

When the upper segmentation of upper transfer platform 2-1 is carried out lifting location, comprise the steps:

Step S2211: install multiple upper limit plate 2-X11 on ship hull plate 2-Y；

The present invention, the plurality of upper limit plate 2-X11 is positioned on same level height, and this upper limit plate 2-X11 is all to one Rolling tiltedly, the angle that the angle of this inclination tilts with upper plate 2-11 is consistent, to hold described upper plate 2-11, and with described on The lower surface of base plate 2-11 fits.

Step S2212: the ship hull plate 2-Y line style data according to measuring determine segmentation every grade rib position surplus, exist with laser Mowing surplus after line in each segmentation, uses pattern cutting, groove of having polished after cutting；

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: mark the first deck level inspection line 2-M11, rib before first on ship hull plate 2-Y with total powerstation Bit trial line 2-M12 and the first aft rib bit trial line 2-M13 is the most accurate with the location checking segmentation；

Step S2215: with the first deck level inspection line 2-M11 as baseline, take a little at the upper surface 2-N11 of upper segmentation, And adjust the position of segmentation, make the difference of this upper surface vertical dimension away from the first deck level inspection line 2-M11 identical；? Take a little respectively in both ends of the surface before and after upper segmentation, and adjust the position of segmentation, make segmentation front end face 2-N12 difference away from Before first, the horizontal range of rib bit trial line 2-M12 is identical, and makes the difference of rear end face 2-N13 of segmentation away from the first aft rib The horizontal range of bit trial line 2-M13 is identical.

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

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

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

Step S2221: install multiple first on the upside of ship hull plate 2-Y and draw a yard 2-A11；

In the present invention, the plurality of first draws a yard 2-A11 to be positioned on sustained height.

Step S2222: install in upper segmentation multiple draw yard 2-A11 corresponding with first second draw a yard 2-A12, this is years old One draws yard 2-A11 and second to draw yard 2-A12 on same rib bit line；

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

Step S2223: by draw yard screw by this first draw code and second to draw code is fixing connects, and then by upper transfer platform The upper segmentation of 2-1 is fixed on the upside of ship hull plate 2-Y；

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

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

It it is the location figure of the lower segmentation of lower transfer platform please refer to Figure 22 to Figure 23, Figure 22；Figure 23 is that lower oil transportation is put down The side view of segmentation under platform.

When the lower segmentation of lower transfer platform 2-2 is carried out lifting location, comprise the steps:

Step S2311: install multiple lower limiting board 2-X21 on ship hull plate 2-Y, installs high-order bracing frame 2-on ground X22；

Step S2312: the outside plate line style data according to measuring determine every grade of rib position surplus of lower segmentation, with laser at each lower point Mowing surplus after line in section, uses pattern cutting, groove of having polished after cutting；

Step S2313: mark the second deck level inspection line 2-M21, rib bit trial before second on outside plate 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 By this high position bracing frame 2-X22, this lower segmentation is held；

Step S2315: with the second deck level inspection line 2-M21 as baseline, take a little at the upper surface 2-N21 of lower segmentation, And adjust the position of lower segmentation, make the difference of this upper surface vertical dimension away from the second deck level inspection line 2-M21 identical； Take a little respectively in both ends of the surface before and after lower segmentation, and adjust the position of lower segmentation, make the difference of the front end face 2-N22 of lower segmentation The horizontal range of rib bit trial line 2-M22 is identical o'clock before second, and makes the difference of lower segmentation rear end face 2-N23 after second The horizontal range of rib bit trial line 2-M23 is identical, and makes the upper pipe 2-13 of segmentation and the lower pipe 2-24 of lower segmentation same On one vertical straight line.

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

It is that under lower transfer platform, segmentation pad arranges structural representation please refer to Figure 24 to Figure 25, Figure 24；Figure 25 It it is the structural representation under lower transfer platform after segmentation welding.

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

Step S2321: install the multiple 3rd on the downside of ship hull plate 2-Y and draw a yard 2-A21；

In the present invention, the plurality of 3rd draws a yard 2-A21 to be positioned on sustained height；

Step S2322: installing in upper segmentation and multiple draw corresponding for yard 2-A21 the 4th to draw a yard 2-A22 with the 3rd, this is years old Three draw yard 2-A21 and the 4th to draw yard 2-A22 on same rib bit line；

Step S2323: by drawing yard screw to draw code and the 4th to draw the fixing connection of code by the 3rd, and then by upper transfer platform The lower segmentation of 2-1 is fixed on the downside of ship hull plate 2-Y.

Step S2324: arrange multiple lower pad 2-Z2 in lower segmentation, according to this lower pad 2-Z2 and ship hull plate 2-Y is welded and fixed.

Described flare tower build process:

The most referring also to Figure 26 to Figure 31, Figure 26 are the segmentations of the flare tower in the large torch tower build process of the present invention Schematic diagram, Figure 27 is the structural representation of the main segmentation of 3-B2 in Fig. 2, and Figure 28 is the build process 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 it is main block assembly schematic diagram in Figure 26.

See Figure 26, the flare tower 3-20 height 117 meters that the large torch tower build process of this case is to be built, always weigh about 380 Ton, this flare tower 3-20 is divided into 3-B1,3-B2,3-B3,3-B4 tetra-main segmentations, wherein 3-B1 length by construction plan from the bottom to top The long 35125mm of 8525mm, 3-B2 long 34825mm, 3-B3 long 38725mm, 3-B4.Wherein, the main segmentation of 3-B1 is short due to its length, Directly building without being divided into multiple splice sections, the build process of the main segmentation of 3-B2,3-B3,3-B4 is identical, below to build 3- The build process of this flare tower 3-20 is described as a example by the main segmentation of B2.

See the main segmentation of Figure 27,3-B2 include in equilateral triangle erect the first column 3-21, the second column 3-22, the 3rd stand Post 3-23 and horizontal or oblique be cross-linked this first column 3-21, the second column 3-22, the diagonal brace 3-24 of the 3rd column 3-23. Described first column 3-21 is spliced by seven splice sections from bottom to top, and these 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.Same, described second column 3-22 is by 3-B22-1 extremely 3-B22-7 is spliced (not shown)；Described 3rd column 3-23 is spliced (not shown) by 3-B23-1 to 3-B23-7.Its In, the splicing of splice sections and the docking of main segmentation all use and are symmetrically welded technique, both in splicing round mouth or the symmetry of docking round mouth Weld on Dian.

Specifically, a kind of large torch tower build process, mainly comprise the steps that

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

Wherein, the main segmentation of 3-B1 due to its length short, it is not necessary to be divided into multiple splice sections and directly build, 3-B2,3-B3,3- The build process of the main segmentation of B4 is identical, and the build process of main segmentation is described below as a example by building the main segmentation of 3-B2, 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), these all splice sections are become pipe by square plate roll bending, the longitudinal measure line of this pipe Become a piece welding zone 3-H.

S3012: seven splice sections 3-B21-1 to 3-B21-7 of first group 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 seven splice sections 3-B23-1 of the 3rd group 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 splice sections 3-B21-1 and second splice sections 3-B21-2 of the first column 3-21 180°；

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

S3013: building some diagonal brace 3-24, described diagonal brace 3-24 can be horizontal or oblique be connected to described first column 3- 21, multistage truss framework is become between the second column 3-22, the 3rd column 3-23, and will according to following assemble sequence from the bottom to top Described 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, specifically together 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, Reassemble the second column 3-22, then weld the diagonal brace 3-24 between the first column 3-21 and the 3rd column 3-23 and the second column Diagonal brace 3-24 between 3-22 and the 3rd column 3-23, finally assembling the 3rd column 3-23.

S3002: the corresponding column of tetra-main segmentations of 3-B1,3-B2,3-B3,3-B4 is docked respectively composition flare tower 3- 20.Wherein, the first column of 3-B1,3-B2,3-B3,3-B4 section welds successively；The second of 3-B1,3-B2,3-B3,3-B4 section stands Post welds successively；3rd column of 3-B1,3-B2,3-B3,3-B4 section welds successively, forms complete torch the most on the ground Tower 3-20.

The hoisting of described crane superstructure:

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

It it is the main lifting rope installation of the hoisting of crane superstructure of the present invention please refer to Figure 33 to Figure 35, Figure 33 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: install main lifting rope in superstructure 4-20, is shown on Figure 34, the upper end of described main lifting rope and crane barge arm Suspension ring connect, this main lifting rope includes that the first lifting rope group 4-31 and the second lifting rope group 4-32, described first lifting rope group 4-31 are positioned at 6834mm (L4) place on the left of center of gravity G of superstructure 4-20, described second lifting rope group 4-32 are positioned at center of gravity G of superstructure 4-20 6834mm (L5) place, right side, then adjusts the height of crane barge arm so that described first lifting rope group 4-31 and the second lifting rope group 4- The 32 initial lifting angle [alpha] 1 forming one 10 °.

Described first lifting rope group 4-31 includes the first lifting rope 4-311 and the second lifting rope 4-312, described first lifting rope 4-311 With the front and back that the second lifting rope 4-312 is connected to this superstructure 4-20, described first lifting rope 4-311 and second hangs Arranging strip chock between rope 4-312 makes the first lifting rope 4-311 and the second lifting rope 4-312 form 15 ° of angle α 3；Described Two lifting rope groups 4-32 include the 3rd lifting rope 4-321 and the 4th lifting rope 4-322, described 3rd lifting rope 4-321 and the 4th lifting rope 4-322 It is connected to the front and back of this superstructure 4-20, arranges between described 3rd lifting rope 4-321 and the 4th lifting rope 4-322 Strip chock makes the 3rd lifting rope 4-321 and the 4th lifting rope 4-322 form 15 ° of angle α 4.

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

S4003: integral lifting superstructure 4-20 also aloft adjusts the angle of main arm 4-22 and joint arm 4-23, Seeing Figure 34, owing to the rings height on crane barge arm top is fixed, slow along with this superstructure 4-20 rises, described initial Hang angle [alpha] 1 to incrementally increase accordingly, when described initial lifting angle [alpha] 1 reaches 12 °, start the liquid on described operating platform 4-21 Compress switch the described joint arm 4-23 of withdrawal so that the initial angle α 2 of described main arm 4-22 and joint arm 4-23 was by originally Obtuse angle narrow down to the acute angle of one 75 °.

S4004: docking superstructure 4-20, is shown in Figure 35, rises to described initial lifting when this superstructure 4-20 continues to hang When angle [alpha] 1 is 28 °, artificial commander hull 4-50 location is docked in the underface of this superstructure 4-20, the most slowly declines institute State superstructure 4-20 to described initial lifting angle [alpha] 1 be 20 ° time, pull described first adjust rope 4-41 and second adjust rope 4-42 so that the arm bracket 4-60 on described main arm 4-22 alignment deck, and allow this superstructure 4-20 be placed on arm On bracket 4-60, then the lower end flanges of described operating platform 4-21 is docked with the stack shell 4-24 flange on deck, finally solve Lock lifting rope and adjust rope, first unlocks described first and adjusts rope 4-41 and second and adjust rope 4-42, unlock the most sequentially One lifting rope 4-311, the 3rd lifting rope 4-321, the second lifting rope 4-312, the 4th lifting rope 4-322.

Further, as preferably, described first adjust rope 4-41, second adjust 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 build process of the pillar of described seawater lift pump:

It is the structural representation of the pillar of the seawater lift pump of the present invention please refer to Figure 36 to Figure 42, Figure 36, Figure 37 Being 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 Bright middle base segment butt-joint process schematic diagram, Figure 40 is the structural representation of outer arcuate code plate in the present invention, and Figure 41 is interior in the present invention 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 build process of the pillar of seawater lift pump of the present invention, the pillar 5-100 of seawater lift pump to be built is positioned at FPSO ship starboard wing tank, it is vertical sequentially passes through main ship deck, hull two-layer platform, three layers of platform of hull, hull four layers are put down Platform and hull base plate, its internal diameter Ф 50 is 1.1m, length L50 is 32.3m, weight is about 36 tons.Protecting of described seawater lift pump The equal welded flange in pipe 5-100 top and bottom is used for connecting 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 Superstructure 5-160 of the pillar 5-100 of this seawater lift pump, the most a length of 3m of each base segment of described superstructure 5-160, the Hendecyl section 5-111 and flange in the bottom collectively form substructure 5-170 of the pillar 5-100 of this seawater lift pump, and the 11st The a length of 2.3m of base segment 5-111.The pipe thickness of the first base segment and 5-101 hendecyl section 5-111 is 35mm, the second base segment 5- The pipe thickness of 102 to the tenth base segment 5-110 is 25mm.On the outer wall of described superstructure 5-160, perpendicular separation is welded with One platform 5-181, the second platform 5-182, the 3rd platform 5-183 and the 4th platform 5-184 put down with main ship deck, hull two layers Platform, three layers of platform of hull, four layers of platform correspondence of hull.

The build process of the pillar 5-100 of described seawater lift pump, comprises the following steps:

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

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

Fan-shaped frock 5-200 is that sector made by 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 made by a plank, its internal diameterFor 1095mm, it is used for measuring the curling circle of substrate Degree.

S5012: base segment longitudinal slot welds, and the longitudinal slot on base segment tube wall in described S5011 is processed into by this step Bevel for welding sealing weld form it into longitudinal measure zone 5-141, and the sealing weld technique of described 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 interval also registration → c of base segment pipe external) weld in base segment pipe Groove → d) remove described outer arc shape code plate 5-240 → e) base segment pipe outside weld catching groove → f) interior 3 the inner arc shape code plate 5-of pipe 241 interval registration → g) the outer groove of welding base segment pipe.

Described outer arc shape code plate 5-240 is the square plate of arc-shaped recess on one side, and its circular arc internal diameter is 5-1100mm, and it is recessed The distance on arc top to the one side corresponding thereto fallen into is not less than 200mm to guarantee that outer arc shape code plate 5-240 has enough intensity. Described 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 closes up in welding process and is subject to Power is unlikely to deform.

Described inner arc shape code plate 5-241 is the square plate of arc evagination on one side, and its circular arc internal diameter is 1100mm, its evagination Arc top to one side corresponding thereto distance not less than 200mm to guarantee that inner arc shape code plate 5-241 has enough intensity.Institute State inner arc shape code plate 5-241 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 is butted into trunnion 5-164, and this step is first by the second base segment 5-102 To the 4th base segment 5-104 be coaxially spliced into the first splice sections 5-161, the 5th base segment 5-105 to the 7th base segment 5-107 coaxially splices The second splice sections 5-162, the 8th base segment 5-108 to the tenth base segment 5-110 is become coaxially to be spliced into the 3rd splice sections 5-163, 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 this step The longitudinal measure zone 5-141 of adjacent two pieces base segment staggers 180 degree the most in the axial direction.

Further, in this step, base segment is carried out splicing welding or splice sections carry out docking welding before, use draw steel wire to survey The trunnion 5-164 that the mode of straight line ensures to make linearity.Both at some base segment two of the coaxial placement of level 0 ° of tube wall circular arc, 90 °, determine three groups of datum marks respectively on 180 ° of positions, and correspondence is often organized and is drawn a steel wire between datum mark, logical Cross the distance every 500mm measuring steel wire and base segment tube wall to determine the depth of parallelism of each base segment, and then determine the axle of each part base segment The heart the most on the same line, if the linearity margin of tolerance is beyond ± 2mm, then revises the placement attitude of base segment.

Further, in this step, base segment is carried out splicing welding or splice sections carry out docking welding time, first by the base segment mouth of pipe It is processed into bevel for welding and sealing weld forms it into annular solder zone 5-142, the sealing weld technique of described annular solder zone 5-142 For: h) the outer groove spot welding → i of pipe) the outer arc shape code plate 5-240 interval outside pipe registration → 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 interval in pipe registration → n) weldering Take over outer groove.

Further, when described 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, both synchronized to weld on the axial symmetry point of described annular solder zone 5-142.

S5014: by top flange, the first base segment 5-101, the described seawater lift pump of the integrally welded formation of trunnion 5-164 Superstructure 5-160 of pillar 5-100；By bottom flange, hendecyl section 5-111 integrally welded formation seawater lift pump Substructure 5-170 of pillar 5-100.

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

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

S5002: position substructure 5-170 of the pillar 5-100 of seawater lift pump on the reserved location of hull, and hang Dress superstructure 5-160 is interfaced.

S5003: described first platform 5-181 docks with main ship deck；Described second platform 5-182 puts down with hull two layers Platform docks；Three layers of platform of described 3rd platform 5-183 and hull dock；Described 4th platform 5-184 and four layers of platform pair of hull Connect.

The invention is not limited in above-mentioned embodiment, if various changes or deformation to the present invention are without departing from the present invention Spirit and scope, if these are changed and within the scope of deformation belongs to claim and the equivalent technologies of the present invention, then this Bright being also intended to comprises these changes and deformation.

Claims (10)

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

S1000: multipoint mooring cable stopper dependency structure build process, comprises the steps:

Step S1001: ship hull plate sidepiece is strengthened and consolidates；Described step S1001 includes:

Step S1011: fix a reinforcement platform along ship hull plate sidepiece；Described reinforcement platform is arranged stiffener assembly and under Stiffener assembly；

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

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

The build process of S2000: transfer platform, comprises the steps:

Step S2001: sectional construction: upper transfer platform is divided into multiple upper segmentation, is divided into multiple lower segmentation by lower transfer platform, Each segmentation is built；

Step S2002: upper segmentation is carried out lifting location 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: lower segmentation is carried out lifting location and is welded and fixed: delimit lower split fix line, by each lower segmental hoisting Close up and be weldingly fixed on the downside of ship hull plate；

S3000: flare tower build process, comprises the steps:

S3001: build four main segmentations；Wherein, build each main segmentation all to comprise the following steps:

S3011: build first group of seven splice sections, builds second group of seven splice sections, builds the 3rd group of seven splice sections；

S3012: seven splice sections of first group are spliced into the first column, and the piece welding zone of the most adjacent two splice sections is all Out-of-line, seven splice sections of second group are spliced into the second column, the weldering of the piece of the most adjacent two splice sections District is the most out-of-line, seven splice sections of the 3rd group are spliced into the 3rd column, the spelling of the most adjacent two splice sections Seam welding district is the most out-of-line；

S3013: build some diagonal braces, described diagonal brace can horizontal or oblique be connected to described first column, the second column, the 3rd stand Multistage truss framework, described diagonal brace, the first column, the second column, the 3rd column is become to be assembled into main segmentation together between post；

S3002: the corresponding column of four main segmentations is docked respectively the flare tower that composition is complete；

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

S4001: install main lifting rope in superstructure, the upper end of described main lifting rope is connected with the suspension ring on crane barge arm, and this is main Lifting rope include the first lifting rope group and the second lifting rope group, described first lifting rope group be positioned on the left of the center of gravity of superstructure at 6834mm, Described second lifting rope group is positioned on the right side of the center of gravity of superstructure at 6834mm, then adjusts the height of crane barge arm so that described First lifting rope group and the second lifting rope group formed one 10 ° initially lift by crane angle；

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

S4003: integral lifting superstructure also aloft adjusts the angle of main arm and joint arm, due to crane barge arm top Rings height fix, along with the slow rising of this superstructure, described initial lifting angle incrementally increases, accordingly at the beginning of described When the lifting angle that begins reaches 12 °, start the hydraulic selector on described operating platform and regain described joint arm so that described master hangs Arm is narrowed down to an acute angle with the initial angle of joint arm by obtuse angle；

S4004: docking superstructure, when this superstructure continue to hang rise to described initial lifting angle be 28 ° time, manually command Hull location is docked in the underface of this superstructure, then slowly declines described superstructure to described initial lifting angle and is When 20 °, pull described first to adjust rope and second and adjust rope so that the arm bracket on described main arm alignment deck, and allow This superstructure is placed on arm bracket, then by the lower end flanges of described operating platform and the stack shell flange pair on deck Connect, finally unlock this first adjustment rope, the second adjustment rope, the first lifting rope group and the second lifting rope group；

The build process of the pillar of S5000: seawater lift pump, wherein the pillar of seawater lift pump is divided into first from top to bottom Base segment collectively forms the pillar of this seawater lift pump to hendecyl section, described first base segment to the tenth base segment and a top flange Superstructure, hendecyl section and a flange in the bottom collectively form substructure of the pillar of this seawater lift pump, and sea water carries Rise the build process of the pillar of pump, comprise the following steps:

S5001: building superstructure and substructure of the pillar of seawater lift pump respectively, step S6001 comprises the following steps:

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

S5012: base segment longitudinal slot welds, and the longitudinal slot on base segment tube wall in described S11 is processed into welding slope by this step Mouth sealing weld form it into longitudinal measure zone, and the sealing weld technique of described longitudinal measure zone is: a) the outer groove spot welding of base segment pipe → b) base segment pipe external outer arc shape code plate interval also registration → c) welding base segment pipe internal groove → d) remove described outer arc shape code Plate → e) base segment pipe outside weld catching groove → f) manage interior inner arc shape code plate interval registration → g) weld groove outside base segment pipe；

S5013: base segment is spliced into splice sections, splice sections is butted into trunnion, and this step is first coaxial to the 4th base segment by the second base segment Be 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 segment same 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, this step In Zhou, the longitudinal measure zone of adjacent two pieces base segment staggers 180 degree the most in the axial direction；

S5014: top flange, the first base segment, trunnion is integrally welded, forms the top knot of the pillar of described seawater lift pump Structure；By integrally welded to bottom flange, hendecyl section, form 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 described superstructure Platform, square described first platform, the second platform, the 3rd platform and the 4th platform the most vertically entangle outside described superstructure Wall；

S5016: respectively described superstructure, substructure and the first platform, the second platform, the 3rd platform, the 4th platform are coated with Dress anticorrosive paint；

S5002: position substructure of the pillar of seawater lift pump on the reserved location of hull, and lift superstructure and its Docking；

S5003: described first platform docks with main ship deck；Described second platform docks with hull two-layer platform；Described Three layers of platform of three platforms and hull dock；Four layers of platform of described 4th platform and hull dock.

Oil tanker the most according to claim 1 repacks the method for FPSO into, it is characterised in that:

Described step S1002 includes:

Step S1021: be connected fixing with the connection member of cable stopper for guide chain pipe；

Step S1022: by cable stopper hanging on ship hull plate sidepiece, and make the connection member of cable stopper be fastened on a support component And in the screens between lower supporting assembly；

Step S1023: be connected fixing with upper support component and lower supporting assembly respectively for the connection member of cable stopper, this step bag Include and include:

Step S1231: cable stopper led 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 described 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 sets and is fixed on described upper support component and lower supporting assembly.

Oil tanker the most according to claim 2 repacks the method for FPSO into, it is characterised in that in described step S1011, described Strengthen the second reinforcement platform that platform includes being arranged on the downside of ship hull plate；Described second strengthens platform includes outside the second reinforcement Plate, upper stiffener assembly and lower stiffener assembly；Described second strengthens outside plate is fixedly welded on described ship hull plate sidepiece, and and hull Outside plate fits；Described upper stiffener assembly and lower stiffener assembly be arranged in parallel, and strengthen with described second that outside plate is vertical fixes；Institute State stiffener assembly and include the first reinforcing plate and the second reinforcing plate；Described first reinforcing plate is vertical with one end of the second reinforcing plate wears Crossing described second and strengthen outside plate and ship hull plate, in embedding hull and fix with hull, the other end protrudes from described second and strengthens Outside plate, is connected for fixing with described upper support member；Described lower stiffener assembly includes the 3rd reinforcing plate and the 4th reinforcing plate；Institute The one end stating the 3rd reinforcing plate and the 4th reinforcing plate passes perpendicularly through described second reinforcement outside plate and ship hull plate, in embedding hull also Fix with hull；The other end protrudes from described second and strengthens outside plate, is connected for fixing with described 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 X-type groove full penetration is all used to fix between outside plate and hull；

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

Oil tanker the most according to claim 1 repacks the method for FPSO into, it is characterised in that in described step S2000,

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

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

Step S2112: the upper support fixture being provided with multiple upper through hole is weldingly fixed on upper plate；

Step S2113: multiple upper pipes are each passed through described upper through hole and are fixed on upper plate；

Step S2114: be connected fixing with upper plate and upper support fixture respectively for the end, two ends of epipleural；

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

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

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

Step S2123: connect fixing to lower roof plate and lower support fixed plate；Described lower roof plate is provided with multiple lower through-hole；

Step S2124: multiple lower pipes are each passed through described lower through-hole and are fixed on lower shoe；

When the upper segmentation of upper transfer platform is carried out lifting location, comprise the steps:

Step S2211: install multiple upper limit plate on ship hull plate；

Step S2212: the ship hull plate line style data according to measuring determine segmentation every grade rib position surplus, with laser in each segmentation Mowing surplus after line, uses pattern cutting, groove of having polished after cutting；

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

Step S2214: mark the first deck level inspection line, rib bit trial line and the before first on ship hull plate with total powerstation One aft rib bit trial line is the most accurate with the location checking segmentation；

Step S2215: with the first deck level inspection line as baseline, the upper surface in upper segmentation takes a little, and adjusts the position of segmentation Put, make the difference of this upper surface vertical dimension away from the first deck level inspection line identical；Both ends of the surface before and after upper segmentation Upper taking a little respectively, and adjust the position of segmentation, the difference horizontal range of rib bit trial line before first making front end face is identical, And make the difference of the rear end face horizontal range away from the first aft rib bit trial line identical；

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

Step S2221: install multiple first on the upside of ship hull plate and draw code；

Step S2222: install in upper segmentation multiple draw code-phase corresponding with first second draw code, this first draws code and second to draw Code is on same rib bit line；

Step S2223: by draw yard screw by this first draw code and second to draw code is fixing connects, and then upper by upper transfer platform Segmentation is fixed on the upside of ship hull plate；

Step S2224: with ship hull plate laminating side, pad on multiple is set, by outside pad on this and hull in upper segmentation Plate is welded and fixed；

When the lower segmentation of lower transfer platform is carried out lifting location, comprise the steps:

Step S2311: install multiple lower limiting board on ship hull plate, installs high-order bracing frame on ground；

Step S2312: the ship hull plate line style data according to measuring determine every grade of rib position surplus of lower segmentation, with laser at each lower point Mowing surplus after line in section, uses pattern cutting, groove of having polished after cutting；

Step S2313: mark the second deck level inspection line on outside plate, before second after rib bit trial line and second with total powerstation 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 by this height This lower segmentation is held by danger bracing frame；

Step S2315: with the second deck level inspection line as baseline, the upper surface in lower segmentation takes a little, and adjusts lower segmentation Position, makes the difference of this upper surface vertical dimension away from the second deck level inspection line identical；Two ends before and after lower segmentation Take a little respectively on face, and adjust the position of lower segmentation, make difference horizontal range of rib bit trial line before second of front end face Identical, and make the difference of the rear end face horizontal range away from the second aft rib bit trial line identical, and make the upper pipe of segmentation with The lower pipe of lower segmentation is on same vertical straight line；

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

Step S2321: install the multiple 3rd on the downside of ship hull plate and draw code；

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

Step S2323: by drawing yard screw to draw code and the 4th to draw the fixing connection of code by the 3rd, and then by under upper transfer platform Segmentation is fixed on the downside of ship hull plate；

Step S2324: with ship hull plate laminating side, multiple lower pad is set, by this lower pad and hull in lower segmentation Outside plate is welded and fixed；Meanwhile, multiple sides pad is set in the end, two ends of lower segmentation, by this side pad by each lower segmentation Connecting welding is fixed.

Oil tanker the most according to claim 4 repacks the method for FPSO into, it is characterised in that: described upper plate rolls to one Tiltedly；Described upper limit plate is the most accordingly to lopsidedness, the angle one that the angle that described upper limit plate tilts tilts with upper plate Cause, and fit with the lower surface of described upper plate；Described upper support fixture and upper plate, upper pipe and upper plate, upper circle Pipe and upper support fixture all pass through CO₂The mode of welding is welded and fixed；Described lower supporting plate and lower shoe, lower pipe and the end Plate, lower pipe and lower supporting plate all pass through CO₂The mode of welding is welded and fixed.

Oil tanker the most according to claim 1 repacks the method for FPSO into, it is characterised in that:

In described step S3012,

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

In described step S3013,

First assemble the first column, reconnect the diagonal brace between the first column and the second column, reassemble 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 assembling the 3rd column；

In described step S3000,

The splicing of splice sections and the docking of main segmentation all use and are symmetrically welded technique, both in splicing round mouth or the symmetry of docking round mouth Weld on Dian；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.

Oil tanker the most according to claim 1 repacks the method for FPSO into, it is characterised in that:

In described step S4001, described first lifting rope group includes that the first lifting rope and the second lifting rope, described first lifting rope and second hang Rope is connected to the front and back of this superstructure, arranges strip chock and make between described first lifting rope and the second lifting rope Obtain the first lifting rope and the second lifting rope forms 15 angles °；Described 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 this superstructure, arrange between described 3rd lifting rope and the 4th lifting rope Strip chock makes the 3rd lifting rope and the 4th lifting rope form 15 angles °；

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

In described step S4004, first unlock described first and adjust rope and the second adjustment rope, unlock first the most sequentially and hang Rope, the 3rd lifting rope, the second lifting rope, the 4th lifting rope；

Described 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.

Oil tanker the most according to claim 1 repacks the method for FPSO into, it is characterised in that: in described step S5013,

In described step S5013, base segment is carried out splicing welding or splice sections carry out docking welding before, use draw steel wire survey straight line The mode trunnion that ensures to make linearity, both tube wall circular arcs at some base segment two of the coaxial placement of level 0 °, 90 °, determine three groups of datum marks respectively on 180 ° of positions, and correspondence is often organized and is drawn a steel wire between datum mark, is measured by spacing The distance of steel wire and base segment tube wall determines the depth of parallelism of each base segment, and then determines that whether the axle center of each part base segment is at same straight line On, if the linearity margin of tolerance is beyond ± 2mm, then revise the placement attitude of base segment；

In described step S5013, base segment is carried out splicing welding or splice sections carry out docking welding time, first by the base segment mouth of pipe process Becoming bevel for welding sealing weld to form it into annular solder zone, the sealing weld technique of described annular solder zone is: h) outside base segment pipe Annular groove spot welding → i) base segment pipe external outer arc shape code plate interval also registration → j) welding base segment pipe annular groove → k) Remove described outer arc shape code plate → l) base segment pipe outer ring weld seam catching groove → m) it is spaced with inner arc shape code plate and is ranked in base segment pipe Position → n) the outer groove of welding base segment pipe；Described step j) and n) in, when circular weld is welded, use the mode that is symmetrically welded, Both synchronized to weld on the axial symmetry point of described annular solder zone；

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

9. according to 3,5,6,7,8 methods that described oil tanker repacks FPSO into of claim, it is characterised in that: in reforming technology Pipeline section is closed up, splices and butt-joint process all uses the technique being symmetrically welded, both entered successively on the point of symmetry of pipeline section round mouth Row welding.

Oil tanker the most according to claim 9 repacks the method for FPSO into, it is characterised in that: described S1000 multipoint mooring is pulled Chain device dependency structure build process, the build process of S2000 transfer platform, S3000 flare tower build process, S4000 crane The hoisting of superstructure, the build process of pillar of S5000 seawater lift pump can be run simultaneously construction.