CN105781214A - FPSO large flare tower building technology - Google Patents
FPSO large flare tower building technology Download PDFInfo
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- CN105781214A CN105781214A CN201610371320.7A CN201610371320A CN105781214A CN 105781214 A CN105781214 A CN 105781214A CN 201610371320 A CN201610371320 A CN 201610371320A CN 105781214 A CN105781214 A CN 105781214A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/02—Structures made of specified materials
- E04H12/08—Structures made of specified materials of metal
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- Structural Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention discloses an FPSO large flare tower building technology. The technology comprises the following steps that 1, four main sections are built; 2, the four main sections are in butt joint to form a flare tower. In the first step, the method for building each main section comprises the following steps that 11, three groups of connection sections are built, wherein each group of the connection sections comprises seven connection sections; 12, the connection sections of each group are spliced into a stand column, wherein the abutted seam welding areas of every two adjacent connection sections are not in the same straight line; 13, multiple inclined struts are built and assembled with the first stand column, the second stand column and the third stand column to form the main section. According to the FPSO large flare tower building technology, ground construction is only needed, the construction cost is low, the construction period is short, and potential safety hazards caused by working at heights are avoided; the abutted seam welding areas of the adjacent connection sections are staggered by a certain angle, and the weak structure caused due to the fact that the abutted seam welding areas are in the same straight line is avoided; all the stand columns and inclined struts are assembly gradually from bottom to top, and the cutting accuracy of the inclined struts is easy to control.
Description
Technical field
The present invention relates to shipbuilding field, particularly relate to the monolithic building of FPSO large torch tower.
Background technology
Along with the development of world industrial economy, deepwater oilfield is developed gradually, and FPSO ship (FloatingProductionStorageandOffloading Floating Production Storage easing gear) and other corresponding ocean engineering product consumptions are continuously increased.Flare tower (Flarestack) is specific works on FPSO, be a kind of in high-altitude open burning mode to process the device of waste gas, be also the visual plant in offshore oil and gas production system.General flare tower is built to be needed to consider the feature of environmental protection and safety, therefore all tower body height there is concrete demand, as the 28 ton ultra large crude carrier such as " Erie Ya Beila ", " Mary's card ", " Sa Kalima " are adapted as in the project of FPSO by applicant, refer to Fig. 1, this flare tower 10 oneself height reaches 117 meters, always weighing about 380 tons, its main composition includes: vertical three root posts 11, laterally or the multistage diagonal brace 13 of the oblique each column of connection.Such large torch tower has the advantages that tonnage is big, center of gravity is high, irregular structure, steel construction deal with to be easily deformed or rupture improperly, the traditional construction mode of flare tower is that each main segmentation constructed is built on ground, then main segmentation is lifted into high-altitude respectively and docks in high-altitude.Such mode of construction needs to build significantly high scaffold, not only increases cost, and substantial amounts of work high above the ground is also dangerous.Meanwhile, if main segmentation is oversize, it is necessary to building several splice sections to be spliced into main segmentation, the splicing process of each splice sections directly determines the structural strength of main segmentation, and then also determines the structural strength of flare tower.
Summary of the invention
It is an object of the invention to overcome shortcoming of the prior art with not enough, it is provided that a kind of FPSO large torch tower build process meeting Structural strength calls, short construction period in ground integral constructing, each segmentation docking and splicing.
The present invention is achieved by the following technical solutions: FPSO large torch tower build process, comprises the following steps:
S1: build four main segmentations；
Wherein, build each main segmentation all to comprise the following steps:
S11: build first group of seven splice sections, builds second group of seven splice sections, builds the 3rd group of seven splice sections；
S12: seven splice sections of first group are spliced into the first column, wherein often the piece welding zone of adjacent two splice sections is all out-of-line, seven splice sections of second group are spliced into the second column, wherein often the piece welding zone of adjacent two splice sections is all out-of-line, seven splice sections of the 3rd group are spliced into the 3rd column, and wherein often the piece welding zone of adjacent two splice sections is all out-of-line；
S13: build some diagonal braces, described diagonal brace can be horizontal or oblique be connected between described first column, the second column, the 3rd column and become multistage truss framework, and according to following assemble sequence from the bottom to top, described diagonal brace, the first column, the second column, the 3rd column are assembled into main segmentation together, assemble sequence is: first assemble the first column, connect the diagonal brace between the first column and the second column again, assemble the second column again, then the diagonal brace between the diagonal brace between the first column and the 3rd column and the second column and the 3rd column is connected, finally assembling the 3rd column；
S2: the corresponding column of four main segmentations is docked respectively the flare tower that composition is complete.
Further, in described S12,
Piece welding zone between first splice sections and second splice sections of the first column staggers 180 ° mutually；
Piece welding zone between second splice sections and the 3rd splice sections of the first column staggers 90 ° mutually；
Piece welding zone between 3rd splice sections and the 4th splice sections of the first column staggers 90 ° mutually；
Piece welding zone between 4th splice sections and the 5th splice sections of the first column staggers 180 ° mutually；
Piece welding zone between 5th splice sections and the 6th splice sections of the first column staggers 90 ° mutually；
Piece welding zone between 6th splice sections and the 7th splice sections of the first column staggers 90 ° mutually.
Piece welding zone between first splice sections and second splice sections of the second column staggers 180 ° mutually；
Piece welding zone between second splice sections and the 3rd splice sections of the second column staggers 90 ° mutually；
Piece welding zone between 3rd splice sections and the 4th splice sections of the second column staggers 90 ° mutually；
Piece welding zone between 4th splice sections and the 5th splice sections of the second column staggers 180 ° mutually；
Piece welding zone between 5th splice sections and the 6th splice sections of the second column staggers 67.5 ° mutually；
Piece welding zone between 6th splice sections and the 7th splice sections of the second column staggers 70 ° mutually.
Piece welding zone between first splice sections and second splice sections of the 3rd column staggers 180 ° mutually；
Piece welding zone between second splice sections and the 3rd splice sections of the 3rd column staggers 90 ° mutually；
Piece welding zone between 3rd splice sections and the 4th splice sections of the 3rd column staggers 90 ° mutually；
Piece welding zone between 4th splice sections and the 5th splice sections of the 3rd column staggers 180 ° mutually；
Piece welding zone between 5th splice sections and the 6th splice sections of the 3rd column staggers 90 ° mutually；
Piece welding zone between 6th splice sections and the 7th splice sections of the 3rd column staggers 72.5 ° mutually.
Further, in described S12 and S2, the splicing of splice sections and the docking of main segmentation all adopt and are symmetrically welded technique, both weld on the point of symmetry of splicing round mouth or docking round mouth.
Further, flare tower overall length 117m, the first main sector boss 8525mm, the second main sector boss 34825mm, the 3rd main sector boss 38725mm, the 4th main sector boss 35125mm.
Compared to prior art, the FPSO large torch tower build process of the present invention provides the benefit that:
Only need at ground construction during construction flare tower, it is not necessary to building the scaffold of work high above the ground, 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 piece welding zone of contiguous concatenation section staggers certain angle mutually, it is to avoid piece welding zone causes main segmental structure fragile in line, is more beneficial for ensureing the structural strength of flare tower；First column, the second column, the 3rd column and diagonal brace progressively assemble from the bottom to top, it is easy to control the cutting accuracy of diagonal brace, and efficiency of construction is high；The splicing of splice sections and the docking of main segmentation all adopt and are symmetrically welded technique, it is to avoid occur in welding process that stress deformation affects structural strength.
In order to enable the apparent understanding present invention, illustrate to set forth the preferably embodiment of the present invention below with reference to accompanying drawing.
Accompanying drawing explanation
Fig. 1 is the structural representation of flare tower in background technology.
Fig. 2 is the stepwise schematic views of the flare tower in the FPSO large torch tower build process of the present invention.
Fig. 3 is the structural representation of the main segmentation of B2 in Fig. 2.
Fig. 4 is the build process schematic diagram of splice sections B21-1 in Fig. 3.
Fig. 5 is each splice sections splicing process schematic perspective view.
Fig. 6 is each splice sections splicing process schematic top view.
Fig. 7 is main block assembly schematic diagram in Fig. 2.
Detailed description of the invention
Please referring also to Fig. 2 to Fig. 7, Fig. 2 is the stepwise schematic views of the flare tower in the FPSO large torch tower build process of the present invention, Fig. 3 is the structural representation of the main segmentation of B2 in Fig. 2, Fig. 4 is the build process schematic diagram of splice sections B21-1 in Fig. 3, Fig. 5 is each splice sections splicing process schematic perspective view, Fig. 6 is each splice sections splicing process schematic top view, and Fig. 7 is main block assembly schematic diagram in Fig. 2.
See Fig. 2, flare tower 20 height 117 meters that the FPSO large torch tower build process of this case to be built, always weigh about 380 tons, this flare tower 20 is divided into tetra-main segmentations of B1, B2, B3, B4, wherein B1 long 8525mm, B2 long 34825mm, B3 long 35125mm of long 38725mm, B4 by construction plan from the bottom to top.Wherein, the main segmentation of B1 due to its length short, it is not necessary to being divided into multiple splice sections and directly build, the build process of the main segmentation of B2, B3, B4 is identical, is segmented into example the build process of this flare tower 20 is described building B2 master below.
Seeing that the main segmentation of Fig. 3, B2 includes is first column the 21, second column the 22, the 3rd column 23 and the horizontal or oblique diagonal brace 24 being cross-linked this first column the 21, second column the 22, the 3rd column 23 that equilateral triangle is erect.Described first column 21 is spliced by seven splice sections from bottom to top, and these seven splice sections are followed successively by B21-1, B21-2, B21-3, B21-4, B21-5, B21-6, B21-7.Same, described second column 22 is spliced (not shown) by B22-1 to B22-7；Described 3rd column 23 is spliced (not shown) by B23-1 to B23-7.Wherein, the splicing of splice sections and the docking of main segmentation all adopt and are symmetrically welded technique, both weld on the point of symmetry of splicing round mouth or docking round mouth.
Specifically, a kind of FPSO large torch tower build process, mainly comprise the steps that
S1: build four main segmentations, B1, B2, B3, B4；
Wherein, the main segmentation of B1 due to its length short, it is not necessary to being divided into multiple splice sections and directly build, the build process of the main segmentation of B2, B3, B4 is identical, below with build B2 master be segmented into example illustrate main segmentation build process, build the main segmentation of B2 comprise the following steps:
S11: build first group of seven splice sections B21-1, B21-2, B21-3, B21-4, B21-5, B21-6, B21-7.Build second group of seven splice sections B22-1 to B22-7.Build the 3rd group of seven splice sections B23-1 to B23-7；
Specifically (see Fig. 4), this splice sections B21-1 is curved curved surface by square plate and is welded into pipe, and each solder joint is formed continuously a piece welding zone H21-1.Same, the piece welding zone that piece welding zone is H21-2, B21-3 of B21-2 is the piece welding zone that piece welding zone is H21-4, B21-5 of H21-3, B21-4 be the piece welding zone that piece welding zone is H21-6, B21-7 of H21-5, B21-6 is H21-7 (H21-3 to H21-7 is not shown in the figures).
S12: seven splice sections B21-1 to B21-7 of first group are spliced into the first column 21, seven splice sections B22-1 to B22-7 of second group are spliced into the second column 22, seven splice sections B23-1 to B23-7 of the 3rd group are spliced into the 3rd column 23；
Specifically (see Fig. 5 and Fig. 6):
Piece welding zone H21-1 and H21-2 between the first splice sections B21-1 and the second splice sections B21-2 of the first column 21 misplaces 180 °；
Piece welding zone H21-2 and H21-3 between second splice sections B21-2 and the three splice sections B21-3 of the first column 21 misplaces 90 °；
Piece welding zone H21-3 and H21-4 between 3rd splice sections B21-3 and the four splice sections B21-4 of the first column 21 misplaces 90 °；
Piece welding zone H21-4 and H21-5 between 4th splice sections B21-4 and the five splice sections B21-5 of the first column 21 misplaces 180 °；
Piece welding zone H21-5 and H21-6 between 5th splice sections B21-5 and the six splice sections B21-6 of the first column 21 misplaces 90 °；
Piece welding zone H21-6 and H21-7 between 6th splice sections B21-6 and the seven splice sections B21-7 of the first column 21 misplaces 90 °；
Piece welding zone H22-1 and H22-2 between the first splice sections B22-1 and the second splice sections B22-2 of the second column 22 misplaces 180 °；
Piece welding zone H22-2 and H22-3 between second splice sections B22-2 and the three splice sections B22-3 of the second column 22 misplaces 90 °；
Piece welding zone H22-3 and H22-4 between 3rd splice sections B22-3 and the four splice sections B22-4 of the second column 22 misplaces 90 °；
Piece welding zone H22-4 and H22-5 between 4th splice sections B22-4 and the five splice sections B22-5 of the second column 22 misplaces 180 °；
Piece welding zone H22-5 and H22-6 between 5th splice sections B22-5 and the six splice sections B22-6 of the second column 22 misplaces 67.5 °；
Piece welding zone H22-6 and H22-7 between 6th splice sections B22-6 and the seven splice sections B22-7 of the second column 22 misplaces 70 °；
Piece welding zone H23-1 and H23-2 between the first splice sections B23-1 and the second splice sections B23-2 of the 3rd column 22 misplaces 180 °；
Piece welding zone H23-2 and H23-3 between second splice sections B23-2 and the three splice sections B23-3 of the 3rd column 22 misplaces 90 °；
Piece welding zone H23-3 and H23-4 between 3rd splice sections B23-3 and the four splice sections B23-4 of the 3rd column 22 misplaces 90 °；
Piece welding zone H23-4 and H23-5 between 4th splice sections B23-4 and the five splice sections B23-5 of the 3rd column 22 misplaces 180 °；
Piece welding zone H23-5 and H23-6 between 5th splice sections B23-5 and the six splice sections B23-6 of the 3rd column 22 misplaces 90 °；
Piece welding zone H23-6 and H23-7 between 6th splice sections B23-6 and the seven splice sections B23-7 of the 3rd column 22 misplaces 72.5 °.
S13: build some diagonal braces 24, described diagonal brace 24 can be horizontal or oblique be connected to described first column 21, second column 22, multistage truss framework is become between 3rd column 23, and according to following assemble sequence from the bottom to top by described diagonal brace 24, first column 21, second column 22, 3rd column 23 is assembled into main segmentation B2 together, it is specially (see Fig. 7): first assemble the first column 21, weld the diagonal brace 24 between the first column 21 and the second column 22 again, assemble the second column 22 again, then the diagonal brace 24 between diagonal brace 24 and the second column 22 and the 3rd column 23 between the first column 21 and the 3rd column 23 is welded, finally assembling the 3rd column 23.
S2: the corresponding column of tetra-main segmentations of B1, B2, B3, B4 is docked respectively composition flare tower 20.Wherein, the first column of B1, B2, B3, B4 section welds successively；Second column of B1, B2, B3, B4 section welds successively；3rd column of B1, B2, B3, B4 section welds successively, finally forms complete flare tower 20 on the ground.
The invention is not limited in above-mentioned embodiment, if to the various changes of the present invention or deformation without departing from the spirit and scope of the present invention, if these are changed and deform within the claim and the equivalent technologies scope that belong to the present invention, then the present invention is also intended to comprise these changes and deformation.
Claims (7)
1.FPSO large torch tower build process, comprises the following steps:
S1: build four main segmentations；
Wherein, build each main segmentation all to comprise the following steps:
S11: build first group of seven splice sections, builds second group of seven splice sections, builds the 3rd group of seven splice sections；
S12: seven splice sections of first group are spliced into the first column, wherein often the piece welding zone of adjacent two splice sections is all out-of-line, seven splice sections of second group are spliced into the second column, wherein often the piece welding zone of adjacent two splice sections is all out-of-line, seven splice sections of the 3rd group are spliced into the 3rd column, and wherein often the piece welding zone of adjacent two splice sections is all out-of-line；
S13: build some diagonal braces, described diagonal brace can be horizontal or oblique be connected between described first column, the second column, the 3rd column and become multistage truss framework, and described diagonal brace, the first column, the second column, the 3rd column are assembled into main segmentation together；
S2: the corresponding column of four main segmentations is docked respectively the flare tower that composition is complete.
2. FPSO large torch tower build process as claimed in claim 1, it is characterised in that: in described S12,
Piece welding zone between first splice sections and second splice sections of the first column staggers 180 ° mutually；
Piece welding zone between second splice sections and the 3rd splice sections of the first column staggers 90 ° mutually；
Piece welding zone between 3rd splice sections and the 4th splice sections of the first column staggers 90 ° mutually；
Piece welding zone between 4th splice sections and the 5th splice sections of the first column staggers 180 ° mutually；
Piece welding zone between 5th splice sections and the 6th splice sections of the first column staggers 90 ° mutually；
Piece welding zone between 6th splice sections and the 7th splice sections of the first column staggers 90 ° mutually.
3. FPSO large torch tower build process as claimed in claim 1, it is characterised in that: in described S12,
Piece welding zone between first splice sections and second splice sections of the second column staggers 180 ° mutually；
Piece welding zone between second splice sections and the 3rd splice sections of the second column staggers 90 ° mutually；
Piece welding zone between 3rd splice sections and the 4th splice sections of the second column staggers 90 ° mutually；
Piece welding zone between 4th splice sections and the 5th splice sections of the second column staggers 180 ° mutually；
Piece welding zone between 5th splice sections and the 6th splice sections of the second column staggers 67.5 ° mutually；
Piece welding zone between 6th splice sections and the 7th splice sections of the second column staggers 70 ° mutually.
4. FPSO large torch tower build process as claimed in claim 1, it is characterised in that: in described S12,
Piece welding zone between first splice sections and second splice sections of the 3rd column staggers 180 ° mutually；
Piece welding zone between second splice sections and the 3rd splice sections of the 3rd column staggers 90 ° mutually；
Piece welding zone between 3rd splice sections and the 4th splice sections of the 3rd column staggers 90 ° mutually；
Piece welding zone between 4th splice sections and the 5th splice sections of the 3rd column staggers 180 ° mutually；
Piece welding zone between 5th splice sections and the 6th splice sections of the 3rd column staggers 90 ° mutually；
Piece welding zone between 6th splice sections and the 7th splice sections of the 3rd column staggers 72.5 ° mutually.
5. the FPSO large torch tower build process as described in claim 2 to 4, it is characterized in that: in described S13, first assemble the first column, connect the diagonal brace between the first column and the second column again, assemble the second column again, then the diagonal brace between the diagonal brace between the first column and the 3rd column and the second column and the 3rd column is connected, finally assembling the 3rd column.
6. FPSO large torch tower build process as claimed in claim 5, it is characterised in that: in described S12 and S2, the splicing of splice sections and the docking of main segmentation all adopt and are symmetrically welded technique, both weld on the point of symmetry of splicing round mouth or docking round mouth.
7. FPSO large torch tower build process as claimed in claim 6, it is characterised in that: flare tower overall length 117m, the first main sector boss 8525mm, the second main sector boss 34825mm, the 3rd main sector boss 38725mm, the 4th main sector boss 35125mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610371320.7A CN105781214A (en) | 2016-05-27 | 2016-05-27 | FPSO large flare tower building technology |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610371320.7A CN105781214A (en) | 2016-05-27 | 2016-05-27 | FPSO large flare tower building technology |
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| CN105781214A true CN105781214A (en) | 2016-07-20 |
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| CN201610371320.7A Pending CN105781214A (en) | 2016-05-27 | 2016-05-27 | FPSO large flare tower building technology |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20140030476A (en) * | 2012-08-30 | 2014-03-12 | 대우조선해양 주식회사 | Divided erection method of flare tower |
| CN104627830A (en) * | 2014-12-26 | 2015-05-20 | 大连中远船务工程有限公司 | Hoisting method for large-scale flare tower of floating production, storage and unloading device ship |
-
2016
- 2016-05-27 CN CN201610371320.7A patent/CN105781214A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20140030476A (en) * | 2012-08-30 | 2014-03-12 | 대우조선해양 주식회사 | Divided erection method of flare tower |
| CN104627830A (en) * | 2014-12-26 | 2015-05-20 | 大连中远船务工程有限公司 | Hoisting method for large-scale flare tower of floating production, storage and unloading device ship |
Non-Patent Citations (2)
| Title |
|---|
| 岳文河等: "乙烯2#火炬塔架的现场组焊安装工艺", 《焊接技术》 * |
| 潘学光: "FPSO（海洋石油115）检验的关键技术", 《中国水运》 * |
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Address after: 511462 Nansha District, Guangzhou, No. sailing Road, No. 10, self made by the author of the 4 (office building), No. 1 Applicant after: The boat in Guangzhou Wenchong Dock Company Limited Address before: 511462 Nansha District, Guangzhou, No. sailing Road, No. 10, self made by the author of the 4 (office building), No. 1 Applicant before: The ship dengxi shipyard (Guangzhou) Co. Ltd. |
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Application publication date: 20160720 |
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