CN109775632A - The technique of jacket axis full wafer turnover hoisting - Google Patents
The technique of jacket axis full wafer turnover hoisting Download PDFInfo
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- CN109775632A CN109775632A CN201910126540.7A CN201910126540A CN109775632A CN 109775632 A CN109775632 A CN 109775632A CN 201910126540 A CN201910126540 A CN 201910126540A CN 109775632 A CN109775632 A CN 109775632A
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- full wafer
- axis full
- jacket axis
- jacket
- turner
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Abstract
A kind of technique of jacket axis full wafer turnover hoisting, using following steps: one: by jacket axis full wafer it is prefabricated after the completion of, then transport to lifting area in preparation it is in place；Two: several suspension centres being installed on jacket axis full wafer；Three: arrangement turns over supplementary structure；Four: being lifted the jacket axis full wafer of jacket, turn over the turner in supplementary structure as jacket axis full wafer is together along the overturning face overturning overturning of turner to 90 degree；Five: after the lifting of jacket axis full wafer is in place, scaffold is set up at high-order suspension centre, then, cutting suspension centre, polishing, finally, carrying out touch-up paint to polishing position again.The present invention not only realizes 90 degree of turnover hoistings to jacket axis full wafer, improves lifting efficiency；Moreover, also substantially reducing the cost of lifting operation and the risk of hoisting operation.
Description
Technical field
The present invention relates to jacket more particularly to a kind of techniques for jacket axis full wafer turnover hoisting.Belong to sea
Foreign petroleum works field.
Background technique
Be horizontal construction currently, the size of ocean engineering jacket axis full wafer is generally large, still, general assembly when
It waits to need to turn over and turn 90 degrees in place, so, jacket axis full wafer needs to complete a turnover hoisting.
It is existing as follows for the hanging method of jacket axis full wafer:
The first step welds 4 pipe type lifting points on jacket axis full wafer；
Second step passes through wirerope pocket pull-tube type suspension centre with 4 crawler cranes；
Third step is lifted by crane simultaneously with 4 crawler cranes, and jacket axis full wafer is hung ground certain distance；
4th step is remain stationary with 2 crawler cranes, and in addition 2 crawler cranes continue raising, and jacket axis full wafer is overturn
To fast 90 degree of position；
5th step removes the wirerope of 2 static crawler cranes, and in addition 2 crawler cranes are by 90 degree of turn of jacket axis
Full wafer is in place；
6th step, the scaffold that a high position is taken removes 4 pipe type lifting points, and carries out touch-up paint.
The above method has the drawback that:
One, needs to weld 4 pipe type lifting points, welds compared with multiple spot；
Two, not only need 4 crawler cranes while carrying out turn operation, occupy excessive loop wheel machine resource；Moreover, because 4
Loop wheel machine work compound, had not only increased the difficulty of commander, but also improved the risk for turning over operation；
After three, general assemblies are in place, not only need to set up scaffold, while cutting off 4 pipe type lifting points；Furthermore, it would be desirable to carry out
Touch-up paint operation, amount of high-altitude operation are larger；Not only the demand to manpower had been improved, but also has increased the risk of construction.
Summary of the invention
It is a primary object of the present invention to overcome disadvantages mentioned above of the existing technology, and provide a kind of improved jacket
The technique of axis full wafer turnover hoisting not only solves 90 degree of turnover hoisting problems of jacket axis full wafer, improves and hang
Fill efficiency；Moreover, also reducing the cost of lifting operation and the risk of hoisting operation.
The purpose of the present invention is implemented by the following technical solutions:
A kind of technique of jacket axis full wafer turnover hoisting, it is characterised in that: use following steps:
Step 1: by jacket axis full wafer it is prefabricated after the completion of, then transport to lifting area in preparation it is in place；
Step 2: installing several suspension centres on jacket axis full wafer；
Step 3: turn supplementary structure to be transported to the bottom of jacket axis full wafer, make jacket axis full wafer column
Bottom end beyond turn over supplementary structure in turner certain distance, then, promoted turn over supplementary structure, allow turn over supplementary structure
In turner contacted with jacket axis full wafer column, and turn over supplementary structure pedestal under be put into base pads wood, turn over
Supplementary structure deploys；
Step 4: then the suspension hook pocket of loop wheel machine, which is held suspension centre, is lifted the jacket axis full wafer of jacket, at this point, turning over
For turner in body supplementary structure as jacket axis full wafer is together along the overturning face overturning of turner, jacket axis is whole
Piece is detached from the pad pier of jacket axis full wafer, and the overturning face for continuing on turner is continued after flipping an angle, jacket axis
The chock of supplementary structure is turned in the bottom end contact of line full wafer column, continues to be lifted jacket axis full wafer, jacket axis full wafer
It is detached from turner, jacket axis full wafer is with the contact point of the bottom end of the whole column of jacket axis and the chock for turning over supplementary structure
For fulcrum, continue overturning to 90 degree, turnover hoisting is completed；
Step 5: scaffold is set up at high-order suspension centre, and cut suspension centre after the lifting of jacket axis full wafer is in place,
Then it polishes, finally, carrying out touch-up paint to polishing position again.
In the first step, lifting area in preparation should tamp as close as possible to the integrated position of jacket and need placement turn auxiliary
Help the ground of structural region.
In the second step, suspension centre is mounted on jacket axis full wafer high level, and carry out strength check.
In the third step, turning over supplementary structure includes: pedestal, the turner and chock that are mounted on the base；Wherein, should
Pedestal is cuboid box-structure；The upper surface of pedestal is equipped with several limit semi-circular tubes and chock baffle；The turner is not
Regular body structure is equipped with round tube section in the upper surface of turner, and the round tube section is the round tube of a quarter；Turner
Lower surface is the horizontal plane in the overturning face and a turner of a turner；The section of the chock is rectangular cuboid wood
Head, and the raft being formed by overlapping by several cuboid wood, and raft is fixed on pedestal.
In 4th step, turner is first transitioned into overturning face by horizontal plane, then, overturns face along the upper surface of pedestal
It turns an angle, and the angle can allow the bottom of jacket axis full wafer column to touch chock.
Beneficial effects of the present invention: the present invention due to the adoption of the above technical scheme, is not only realized to jacket axis
90 degree of turnover hoistings of full wafer, improve lifting efficiency；Moreover, also reducing the welding of two pipe type lifting points, and then reduces and take
If the high altitude operation such as cutting, high-altitude touch-up paint that scaffold, high-altitude pluck button, high-altitude is got angry, substantially reduces the cost of lifting operation and rise
The risk of heavy work.
Detailed description of the invention
Fig. 1 is the preceding place arrangement schematic diagram of jacket axis full wafer turnover hoisting of the present invention.
Fig. 2 is loop wheel machine hanging buckle schematic diagram before jacket axis full wafer of the present invention turns over.
Fig. 3 is during jacket axis full wafer turnover hoisting of the present invention, jacket axis full wafer column is detached from pad pier and shows
It is intended to.
Fig. 4 is during jacket axis full wafer turnover hoisting of the present invention, jacket axis full wafer column contact chock shows
It is intended to.
Fig. 5 is in the present invention during jacket axis full wafer turnover hoisting, and jacket axis full wafer column is detached from overturning
Device schematic diagram.
Fig. 6 is jacket axis full wafer turnover hoisting end-state schematic diagram of the present invention.
Fig. 7 is that the present invention turns over supplementary structure connection schematic diagram.
Fig. 8 is that the present invention turns over supplementary structure base portion schematic diagram.
Fig. 9 is that the present invention turns over supplementary structure turner schematic diagram.
Major Symbol illustrates in figure:
1. turn over supplementary structure, 1A. pedestal, 1B. turner, 1C. chock, 1D. pedestal chock, 1E. limit semi-circular tube,
1F. chock baffle, 1G. turner limiting slot, 1M. round tube section, 1L. overturning face, 1N. horizontal plane, 2. jacket axis full wafers,
2A. jacket axis full wafer column, 3. pipe type lifting points, 4. pad piers, 5. suspension hooks, 6. wirerope, 7. ground.
Specific embodiment
As shown in Figures 1 to 9, the present invention uses following steps:
Step 1: as shown in Figure 1, by jacket axis full wafer 2 it is prefabricated after the completion of, then transport to lifting area in preparation it is in place；
Step 2: installing several pipe type lifting points 3 using welding manner on jacket axis full wafer 2 according to Hoisting Program
(the present embodiment is two)；
Step 3: supplementary structure 1 will be turned over forklift transport to the bottom of jacket axis full wafer 2, make jacket axis
The bottom end of full wafer column 2A is beyond the turner 1B certain distance turned in supplementary structure 1, then, is promoted and turns over supplementary structure 1,
The turner 1B turned in supplementary structure 1 is allowed to contact with jacket axis full wafer column 2A, at this point, keep fork truck motionless, and
It turns over and is put into base pads wood 1D under the pedestal 1A of supplementary structure 1, after turning over supplementary structure 1 steadily, withdraw from fork truck, turn over auxiliary
Structure 1 deploys；
Step 4: as shown in Figures 1 to 6, the suspension hook 5 of loop wheel machine is held into pipe type lifting point 3 by 6 pocket of wirerope, and then, lift
The jacket axis full wafer 2 of jacket is risen, at this point, the turner 1B in turn supplementary structure 1 is with jacket axis full wafer 2 one
It rises and is overturn along the overturning face 1L of turner 1B, jacket axis full wafer 2 is detached from the pad pier 4 of jacket axis full wafer, continues edge
The overturning face 1M of turner 1B continue after flipping an angle, auxiliary is turned in the bottom end contact of jacket axis full wafer column 2A
The chock 1C of structure 1 continues to be lifted jacket axis full wafer 2 with crawler crane, and jacket axis full wafer 2 is detached from turner 1B, leads
Pipe support axis full wafer 2 using the bottom end of the whole column 2A of jacket axis and turn over supplementary structure 1 chock 1C contact point as fulcrum,
Continue overturning to 90 degree, turnover hoisting is completed；
Step 5: setting up scaffold at high-order pipe type lifting point 3, and cut after jacket axis full wafer 2 lifts in place
Two pipe type lifting points 3, then polish, finally, carrying out touch-up paint to polishing position again.
In the above-mentioned first step, lifting area in preparation should tamp as close as possible to the integrated position of jacket and need placement turn auxiliary
Help the ground 7 in 1 region of structure；
In above-mentioned second step, according to Hoisting Program, pipe type lifting point 3 is mounted on jacket axis full wafer using welding manner
2 high levels, and carry out strength check；
In above-mentioned third step, turning over supplementary structure 1 includes: three parts: pedestal 1A, the turner being mounted on pedestal 1A
1B and chock 1C；Wherein, pedestal 1A is cuboid box-structure, is used to support turner 1B and chock 1C；In order to limit overturning
Device 1B can only be rotated along the upper surface of pedestal 1A, and using welding manner installation, there are two limit semi-circular tube for the upper surface of pedestal 1A
1E, to as the limit to turner 1B in the horizontal direction；In order to fix chock 1C, in the upper surface of pedestal 1A using weldering
The mode of connecing is equipped with chock baffle 1F, for fixing chock 1C；Turner 1B is irregular body structure, in the upper of turner 1B
Surface is equipped with round tube section 1M, and round tube section 1M is the round tube of a quarter, is used to support jacket axis full wafer column 2A；It turns over
The horizontal plane 1N of overturning face 1M and a turner 1B that the lower surface for turning device 1B is a turner 1B；The section of chock 1C is
Rectangular cuboid wood, and the raft being formed by overlapping by several cuboid wood, and raft is fixed on pedestal 1A；
In above-mentioned 4th step, in switching process, turner 1B is first transitioned into overturning face 1M by horizontal plane 1N, then, overturning
Face 1M turns an angle along the upper surface of pedestal 1A, to guarantee that the whole column 2A of jacket axis will not be along round tube section 1M phase
To sliding, which answers sufficiently small, and the bottom of jacket axis full wafer column 2A can be allowed to touch chock 1C.
Advantages of the present invention is as follows:
It is supported on the bottom of jacket axis full wafer 2 using a kind of turn supplementary structure 1, and two loop wheel machines are mounted on and are led
The top of pipe support axis full wafer 2 just realizes only two pipe type lifting points 3 of welding, so that it may 90 degree for completing jacket axis full wafer 2
Turnover hoisting, not only reduces the welding of two pipe type lifting points 3, so reduce and set up scaffold, button is plucked in high-altitude, high-altitude is got angry
The high altitude operation such as cutting, high-altitude touch-up paint reduce demand and risk of the lifting operation to crawler crane.In a marine worker jacket
In project, the turnover hoisting operation of all jacket axis full wafers 2 of entire project can be completed using the present invention；Contract significantly
The short lifting operation time, hoisting cost is reduced, also reduces security risk brought by high altitude operation in large quantities.
The above described is only a preferred embodiment of the present invention, be not intended to limit the present invention in any form, it is all
It is any simple modification, equivalent change and modification to the above embodiments according to the technical essence of the invention, still falls within
In the range of technical solution of the present invention.
Claims (5)
1. a kind of technique of jacket axis full wafer turnover hoisting, it is characterised in that: use following steps:
Step 1: by jacket axis full wafer it is prefabricated after the completion of, then transport to lifting area in preparation it is in place；
Step 2: installing several suspension centres on jacket axis full wafer；
Step 3: turn supplementary structure to be transported to the bottom of jacket axis full wafer, make the bottom of jacket axis full wafer column
End is beyond the turner certain distance turned in supplementary structure, then, is promoted and turns over supplementary structure, allowed and turn in supplementary structure
Turner is contacted with jacket axis full wafer column, and base pads wood is put under the pedestal for turning over supplementary structure, turns over auxiliary
Structure deploys；
Step 4: then the suspension hook pocket of loop wheel machine, which is held suspension centre, is lifted the jacket axis full wafer of jacket, at this point, turning over auxiliary
The turner helped in structure is overturn along the overturning face of turner together with jacket axis full wafer, and jacket axis full wafer is de-
Pad pier from jacket axis full wafer, the overturning face for continuing on turner are continued after flipping an angle, and jacket axis is whole
The chock of supplementary structure is turned in the bottom end contact of piece column, continues to be lifted jacket axis full wafer, jacket axis full wafer is detached from
Turner, jacket axis full wafer are branch with the contact point of the bottom end of the whole column of jacket axis and the chock for turning over supplementary structure
Point continues overturning to 90 degree, and turnover hoisting is completed；
Step 5: setting up scaffold at high-order suspension centre, and cut suspension centre, then after the lifting of jacket axis full wafer is in place
It polishes, finally, carrying out touch-up paint to polishing position again.
2. the technique of jacket axis full wafer turnover hoisting according to claim 1, it is characterised in that: the first step
In, lifting area in preparation should tamp as close as possible to the integrated position of jacket and need to place the ground for turning over supplementary structure region.
3. the technique of jacket axis full wafer turnover hoisting according to claim 1, it is characterised in that: the second step
In, suspension centre is mounted on jacket axis full wafer high level, and carry out strength check.
4. the technique of jacket axis full wafer turnover hoisting according to claim 1, it is characterised in that: the third step
In, turning over supplementary structure includes: pedestal, the turner and chock that are mounted on the base；Wherein, which is cuboid box knot
Structure；The upper surface of pedestal is equipped with several limit semi-circular tubes and chock baffle；The turner is irregular body structure, is being overturn
The upper surface of device is equipped with round tube section, and the round tube section is the round tube of a quarter；The lower surface of turner is a turner
Overturning face and a turner horizontal plane；The section of the chock is rectangular cuboid wood, and by several cuboid wood
The raft that head is formed by overlapping, and raft is fixed on pedestal.
5. the technique of jacket axis full wafer turnover hoisting according to claim 1, it is characterised in that: the 4th step
In, turner is first transitioned into overturning face by horizontal plane, and then, overturning face turns an angle along the upper surface of pedestal, and should
Angle can allow the bottom of jacket axis full wafer column to touch chock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910126540.7A CN109775632B (en) | 2019-02-20 | 2019-02-20 | Process for turning over and hoisting whole jacket axis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910126540.7A CN109775632B (en) | 2019-02-20 | 2019-02-20 | Process for turning over and hoisting whole jacket axis |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109775632A true CN109775632A (en) | 2019-05-21 |
| CN109775632B CN109775632B (en) | 2020-12-08 |
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ID=66504629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910126540.7A Active CN109775632B (en) | 2019-02-20 | 2019-02-20 | Process for turning over and hoisting whole jacket axis |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112093665A (en) * | 2020-09-04 | 2020-12-18 | 中交三航(南通)海洋工程有限公司 | Wind power foundation pile flange section turning process |
| CN114370040A (en) * | 2021-12-28 | 2022-04-19 | 海洋石油工程股份有限公司 | Novel integral prefabrication and hoisting process for herringbone frame of deepwater jacket |
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| Publication number | Publication date |
|---|---|
| CN109775632B (en) | 2020-12-08 |
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