CN209719865U - A kind of half armful of formula tension leg platform (TLP) - Google Patents
A kind of half armful of formula tension leg platform (TLP) Download PDFInfo
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- CN209719865U CN209719865U CN201920450672.0U CN201920450672U CN209719865U CN 209719865 U CN209719865 U CN 209719865U CN 201920450672 U CN201920450672 U CN 201920450672U CN 209719865 U CN209719865 U CN 209719865U
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Abstract
A kind of half armful of formula tension leg platform (TLP), has column and floating body, the column is internally provided with 3 bulkheads, A bulkhead, B bulkhead and C bulkhead；Column is divided into three spaces to bulkhead by three, angle between the A bulkhead and the B bulkhead is 130 ° to 150 °, A, the angle between B twice bulkhead is too small then it cannot be guaranteed that the transverse width of floating body, angle is then unfavorable for greatly very much effective transmitting of stress between floating body and column, C bulkhead divides remaining 210 ° to 230 ° equally, guarantee column strength, the angle between C bulkhead and A bulkhead and B bulkhead is identical, between 105 ° to 115 °.The utility model meets the floating platform finite element analysis technology of specification, the parametric modeling and Optimization Work of component, fine grid blocks FInite Element analysis of fatigue.The problem of avoiding generation problem of stress concentration, avoiding floating body and column junction generation structure hard spot, lead to floating body, column fatigue damage.
Description
Technical field
The present invention relates to a kind of tension leg platform (TLP) fields, and in particular to is the tension of half armful of formula between a kind of floating body and column
Leg platform.
Background technique
Tension leg platform (TLP) from the last century 60's for the first time the North Sea successful application after, always in deepwater oil-gas development field
Possess one seat, more outstanding advantages are as follows: low cost, applied widely, movenent performance is stablized.In decades, tension
Leg platform (TLP) has obtained sufficient attention and development by its distinguishing feature and technical advantage.
However, in recent years, also being proposed to the structural shape of TLP higher as offshore and gas development moves towards deep-sea
It is required that traditional be inserted into floating body the pattern for carrying out contraposition connection inside column, deposited in practical engineering experience and design
Due to stress form complexity, welding range extensively easy existing defects situations such as, tend to stress concentration occur, stress amplitude compared with
Big situation, fatigue rupture phenomenon also happen occasionally.
In conclusion one type of exploitation is different from plug-in type linked vector graph, it is safer, efficiently, practical column and floating body
Between structure linked vector graph just become design TLP platform an important content.The linked vector graph can also be the steady formula water of other columns
The connection of face platform column and floating body is offered reference.
Summary of the invention
The present invention provides a kind of half armful of formula tension leg platform (TLP), it is intended to solve stress occur inside existing floating body insertion column
The problem of concentration, floating body and column junction generate structure hard spot, lead to floating body, column fatigue damage.
A kind of half armful of formula tension leg platform (TLP), has column and floating body, the column is internally provided with 3 bulkheads, A bulkhead, the cabin B
Wall and C bulkhead；Column is divided into three spaces to bulkhead by three, the angle between the A bulkhead and the B bulkhead be 130 ° extremely
150 °, angle between A, B twice bulkhead is too small then it cannot be guaranteed that the transverse width of floating body, angle be then unfavorable for greatly very much floating body with
Effective transmitting of stress between column, C bulkhead divide remaining 210 ° to 230 ° equally, guarantee column strength, C bulkhead and A bulkhead and B
Angle between bulkhead is identical, between 105 ° to 115 °.
It is fixedly connected on the column there are two the floating body, the angle between two floating bodies is in 90 degree, two institutes
It states floating body to be inserted into inside the column, is welded and fixed connect with the corresponding position of B bulkhead with A bulkhead respectively, described in two
An arc-shaped transition component is welded between floating body, the arc-shaped transition component is made of upper and lower arc outside plate and arc side plate,
The upper and lower arc outside plate and arc side plate are all made of whole plate, reduce welding region and avoid welding defect.The arc-shaped transition
The arc radius of component is the 1/6 to 1/8 of the platform diagonal line two column distance of center circle.The thickness of the arc-shaped transition component
It is identical as the floating body thickness；Multiple reinforcing frame frame plates, multiple reinforcing frame frame plates are equipped with inside the arc-shaped transition component
Respectively in the column strong frame and weak frame welding connect, guarantee bonding strength.Upper and lower arc outside plate and arc side plate
The plate thickness for needing to increase plate thickness, upper and lower arc outside plate and arc side plate and the floating body junction increases by 50% to 70%.In
The upper and lower outside plate of the external connection position of floating body and column connects with thwartships bulkhead siding in column, and the outside of floating body and column connects
The upper and lower outside plate and thwartships bulkhead siding for connecing position are formed integrally, and are suitably thickened, and normal areas plate thickness is usually no more than
3 times.The junction of the arc-shaped transition component and the floating body is additionally provided with vertical bracket, further strengthens structure connection, institute
It states arc-shaped transition component and the column, two floating bodies welds to form an entirety.
That the angle between two floating bodies is 90 degree in existing structure inside two floating bodies insertion columns, two floating bodies it
Between region be that stress concentrates hotspots using this structure of the invention to add an arc mistake between two floating bodies
Component is crossed, alleviates stress and concentrates, eliminate structure hard spot.Also, inside arc-shaped transition component, certain pipeline cable can be carried out
Arrangement space can avoid in column the arrangement pipeline cable of aperture repeatedly, guarantee structural intergrity.Floating body and arc-shaped transition component
One is formed, half armful of formula is connected as one with column, provides effective connection between column and floating body, is eliminated stress and is concentrated, eliminates
The fatigue damages of the components such as floating body and column.
The present invention meets the floating platform finite element analysis technology of specification, the parametric modeling and Optimization Work of component, essence
Refined net FInite Element analysis of fatigue.Generation problem of stress concentration is avoided, floating body is avoided and column junction generates structure
Hard spot, the problem of leading to floating body, column fatigue damage.
Detailed description of the invention
Fig. 1 is structure of the invention top view；
Fig. 2 is the partial schematic diagram of A-A, B-B, C-C in Fig. 1；
Fig. 3 is the structural schematic diagram of existing tension leg platform (TLP) floating body insertion column；
Wherein: 1- floating body, 3- column, 4- arc-shaped transition component, 5-A bulkhead, 6-B bulkhead, 7-C bulkhead, 8- reinforced frame
Strong frame in plate, 9- column, weak frame in 10- column, the upper and lower outside plate of 11-, 12- floating body and column external connection position it is upper,
Lower outside plate, the vertical bracket of 13-.
Specific embodiment
This invention is described further in conjunction with attached drawing, as shown in Figure 1, 2, a kind of half armful of formula tension leg platform (TLP), two
Floating body 1 is inserted into inside column 3, and the angle between shown two floating bodies 1 is 90 degree, and an arc mistake is equipped among two floating bodies
Cross component 4.Three bulkheads, A bulkhead 5, B bulkhead 6, C bulkhead 7 are equipped with inside column 3, three bulkheads will be divided into inside column 3
Three spaces, the angle between A bulkhead and B bulkhead are 142 degree, and the angle between C bulkhead and A bulkhead and B bulkhead is all 109
Degree.Two floating bodies 1 are inserted into inside column 3, are welded and fixed connect with the corresponding position of B bulkhead 6 with A bulkhead 5 respectively.
Inside the arc-shaped transition component 4 be equipped with multiple reinforcing frame frame plates 8, multiple reinforcing frame frame plates 8 respectively with institute
The strong frame 9 and weak frame 10 stated in column are welded to connect.The junction of arc-shaped transition component 4 and floating body 1 is additionally provided with vertical elbow
Plate 13, the arc radius of the arc-shaped transition component are 12m.Upper and lower arc outside plate 11 and arc side plate are all made of whole plate, and
And the plate thickness increase by 70% of upper and lower arc outside plate 11 and arc side plate and the floating body junction.Connect outside floating body and column
The upper and lower outside plate 12 for connecing position is also thickened to original 3 times.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art within the technical scope of the present disclosure, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (6)
1. a kind of half armful of formula tension leg platform (TLP), there is column (3) and floating body (1), it is characterised in that: setting inside the column (3)
There are 3 bulkheads, A bulkhead (5), B bulkhead (6) and C bulkhead (7)；There are two being fixedly connected on the column floating body (1), two
Angle between a floating body (1) is in 90 degree, and two floating bodies are inserted into inside the column (3), respectively with A bulkhead
(5) it is welded and fixed and connect with the corresponding position of B bulkhead (6)；
An arc-shaped transition component (4) is welded between two floating bodies, the arc-shaped transition component (4) is by upper and lower arc
Shape outside plate (11) and arc side plate composition, the thickness of the arc-shaped transition component (4) are identical as the floating body (1) thickness；
Be equipped with multiple reinforcing frame frame plates (8) inside the arc-shaped transition component, multiple reinforcing frame frame plates (8) respectively with it is described
Strong frame (9) and weak frame (10) in column are welded to connect；
The junction of the arc-shaped transition component and the floating body is additionally provided with vertical bracket (13), the arc-shaped transition component and institute
State column, two floating bodies weld to form an entirety.
2. half armful of formula tension leg platform (TLP) of one kind as described in claim 1, it is characterised in that: the circular arc of the arc-shaped transition component
Radius is the 1/6 to 1/8 of the platform diagonal line two column distance of center circle.
3. half armful of formula tension leg platform (TLP) of one kind as described in claim 1, it is characterised in that: the upper and lower arc outside plate and arc
Shape side plate is all made of whole plate.
4. half armful of formula tension leg platform (TLP) of one kind as described in claim 1, it is characterised in that: the upper and lower arc outside plate and arc
Shape side plate and the plate thickness of the floating body junction increase by 50% to 70%.
5. half armful of formula tension leg platform (TLP) of one kind as described in claim 1, it is characterised in that: the A bulkhead and the B bulkhead it
Between angle be 130 ° to 150 °.
6. half armful of formula tension leg platform (TLP) of one kind as described in claim 1, it is characterised in that: the C bulkhead and A bulkhead and the cabin B
Angle between wall is identical, between 105 ° to 115 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920450672.0U CN209719865U (en) | 2019-04-04 | 2019-04-04 | A kind of half armful of formula tension leg platform (TLP) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920450672.0U CN209719865U (en) | 2019-04-04 | 2019-04-04 | A kind of half armful of formula tension leg platform (TLP) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209719865U true CN209719865U (en) | 2019-12-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920450672.0U Active CN209719865U (en) | 2019-04-04 | 2019-04-04 | A kind of half armful of formula tension leg platform (TLP) |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209719865U (en) |
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2019
- 2019-04-04 CN CN201920450672.0U patent/CN209719865U/en active Active
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