CN220448106U

CN220448106U - Marine floating platform

Info

Publication number: CN220448106U
Application number: CN202321940522.0U
Authority: CN
Inventors: 朱鹤翔; 孙小杰; 李亚飞
Original assignee: China Energy Investment Corp Ltd; National Institute of Clean and Low Carbon Energy
Current assignee: China Energy Investment Corp Ltd; National Institute of Clean and Low Carbon Energy
Priority date: 2023-07-21
Filing date: 2023-07-21
Publication date: 2024-02-06
Anticipated expiration: 2033-07-21

Abstract

The utility model discloses an offshore floating platform, which comprises a platform top plate, a supporting frame, a platform main body and a heave plate. The pontoon is sleeved on the vertical bracket, and the supporting frame above the pontoon is supported by the vertical bracket, so that the pontoon only plays a role in providing buoyancy, the stress is small, and the service life is prolonged; the lower end of the pontoon, the lower end of the vertical bracket and the two ends of the transverse bracket are respectively integrally cast and connected in the concrete base, so that the connection is stable, durable and easy to construct; by configuring the concrete base and the heave plate, the gravity center of the offshore floating platform is reduced, and the risk of capsizing is reduced.

Description

Marine floating platform

Technical Field

The utility model relates to the technical field of offshore floating structures, in particular to an offshore floating platform.

Background

The offshore field has good illumination effect, does not occupy ground space, and can rapidly develop an offshore photovoltaic platform by utilizing solar photovoltaic power generation. The offshore photovoltaic platform comprises an offshore floating platform and a photovoltaic power generation plate arranged on the offshore floating platform.

The Chinese patent publication No. CN105121270A discloses a floating offshore platform, which comprises four vertical pipe columns, four pontoons connected to the lower ends of the four vertical pipe columns and a base connected to the lower ends of the vertical pipe columns. The base is a semi-surrounding structure and is wrapped on the outer side of the lower end of the vertical pipe column.

The vertical pipe column in the patent needs to support the platform above and be used as a pontoon, so that the vertical pipe column is stressed greatly and is easy to damage. The vertical tubular column is directly connected with the pontoon, lacks the fixed knot of installation structure between the two, the risk of easily breaking. The gravity center of the whole set of floating offshore platform is higher, and the risk of capsizing exists.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provide the offshore floating platform, wherein the pontoon is sleeved on the vertical support, the support frame above the pontoon is supported by the vertical support, the pontoon only bears the buoyancy, the stress is small, and the service life is prolonged; the lower end of the pontoon, the lower end of the vertical bracket and the two ends of the transverse bracket are respectively integrally cast and connected in the concrete base, so that the connection is stable, durable and easy to construct; by configuring the concrete base and the heave plate, the gravity center of the offshore floating platform is reduced, and the risk of capsizing is reduced.

The technical scheme of the utility model provides an offshore floating platform, which comprises a platform top plate, a supporting frame, a platform main body and a heave plate which are sequentially connected from top to bottom;

the platform main body comprises a plurality of concrete bases, a plurality of vertical supports, a plurality of transverse supports and a plurality of pontoons;

the concrete bases are sequentially arranged at intervals, each concrete base is connected with a vertical support, each vertical support is sleeved with a pontoon, and a transverse support is connected between any two adjacent concrete bases;

the lower end of the vertical support, the lower end of the pontoon and the two ends of the transverse support are respectively integrally poured and connected with the concrete base;

the upper end of the vertical support extends out of the upper part of the pontoon and is fixedly connected with the supporting frame;

the heave plate is connected with each concrete base through an anchor chain.

In one optional aspect, a first groove is formed in the lower end portion of the vertical bracket;

the top surface of the concrete base is provided with a first convex part, and the first convex part is connected in the first groove.

In one optional technical scheme, the vertical support is a vertical pipe, a vertical pipe partition board is arranged in the lower end part of the vertical pipe, and the first groove is positioned below the vertical pipe partition board;

the first protrusion is connected with the standpipe baffle.

In one optional technical scheme, an annular groove is formed between the lower end part of the pontoon and the lower end part of the vertical bracket;

the top surface of the concrete base is provided with an annular convex part, the first convex part is positioned in the annular convex part, and the annular convex part is connected in the annular groove.

In one optional technical scheme, an annular partition plate is connected between the inner surface of the pontoon and the outer surface of the vertical support, and the annular groove is positioned below the vertical pipe partition plate;

the annular convex part is connected with the annular partition plate.

In one optional technical scheme, the end part of the transverse bracket facing the concrete base is provided with a second groove, and the side surface of the concrete base facing the transverse bracket is provided with a second convex part;

the second protrusion is connected in the second groove.

In one optional technical scheme, the transverse support is a transverse tube, transverse tube partition plates are respectively arranged at two ends of the transverse tube, and the second groove is positioned at one side of the transverse tube partition plates facing the concrete base;

the second convex part is connected with the transverse pipe partition plate.

In one optional technical scheme, the bottom of each concrete base is provided with a connecting piece;

the connecting piece comprises a T-shaped connecting end and an anchor chain connecting end, wherein the T-shaped connecting end is integrally poured and connected in the concrete base, the anchor chain connecting end is positioned below the concrete base, and the anchor chain is connected with the anchor chain connecting end.

In one optional technical scheme, the platform top plate and the supporting frame are rectangular, and one vertical bracket is connected below each corner of the supporting frame.

In one optional technical scheme, the support frame comprises two first support rods arranged in parallel and two second support rods arranged in parallel;

the two first support rods are connected with the two second support rods to form a groined structure;

and a reinforcing plate is connected between the first supporting rod and the second supporting rod.

By adopting the technical scheme, the method has the following beneficial effects:

the utility model provides an offshore floating platform, which comprises a platform top plate, a supporting frame, a platform main body and a heave plate. The platform main body consists of a plurality of concrete bases, a plurality of vertical supports, a plurality of horizontal supports and a plurality of pontoons. Each concrete base is connected with a vertical support, each vertical support is sleeved with a pontoon, and a transverse support is connected between every two adjacent concrete bases. The vertical support is connected between the concrete base and the supporting frame, and the heave plate is hung below the plurality of concrete bases through anchor chains.

The upper end of the vertical support extends out of the upper part of the pontoon, the upper end of the vertical support is fixedly connected with the supporting frame, the supporting frame above the vertical support is supported by the vertical support, the pontoon only bears the buoyancy, the stress is small, and the service life of the pontoon is prolonged.

The lower end of the pontoon, the lower end of the vertical support and the two ends of the transverse support are respectively integrally cast and connected in the concrete base, so that the connection is stable, durable and easy to construct.

By configuring the concrete base and the heave plate, the gravity center of the offshore floating platform is reduced, and the risk of capsizing is reduced.

Drawings

The present disclosure will become more readily understood with reference to the accompanying drawings. It should be understood that: the drawings are for illustrative purposes only and are not intended to limit the scope of the present utility model. In the figure:

FIG. 1 is a perspective view of an offshore floating platform according to one embodiment of the present utility model at a first viewing angle;

FIG. 2 is a perspective view of an offshore floating platform according to one embodiment of the present utility model at a second perspective;

FIG. 3 is a perspective view of the support frame coupled to the platform body;

FIG. 4 is a perspective view of the platform body;

FIG. 5 is a top view of the platform body;

FIG. 6 is a cross-sectional view taken along the line A-A of FIG. 5;

FIG. 7 is a cross-sectional view of the lower end of the vertical support;

FIG. 8 is a cross-sectional view of the lower ends of the pontoons and vertical brackets;

FIG. 9 is a cross-sectional view of one end of a cross-brace;

fig. 10 is a cross-sectional view of the attachment integrally cast with the concrete foundation.

Detailed Description

Specific embodiments of the present utility model will be further described below with reference to the accompanying drawings. Wherein like parts are designated by like reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the drawings, and the words "inner" and "outer" refer to directions toward or away from, respectively, the geometric center of a particular component.

As shown in fig. 1 to 6, an offshore floating platform according to an embodiment of the present utility model includes a platform top plate 1, a support frame 2, a platform main body 3 and a heave plate 4, which are sequentially connected from top to bottom.

The platform body 3 comprises a plurality of concrete foundations 31, a plurality of vertical supports 32, a plurality of horizontal supports 33 and a plurality of pontoons 34.

The concrete bases 31 are sequentially arranged at intervals, each concrete base 31 is connected with a vertical support 32, each vertical support 32 is sleeved with a pontoon 34, and a transverse support 33 is connected between any two adjacent concrete bases 31.

The lower end of the vertical support 32, the lower end of the pontoon 34 and the two ends of the transverse support 33 are respectively integrally cast and connected with the concrete base 31.

The upper end of the vertical support 32 extends above the pontoon 34 and is fixedly connected to the support frame 2.

Heave plate 4 is connected to each concrete foundation 31 by means of an anchor chain 5.

The offshore floating platform provided by the utility model is used for installing a photovoltaic power generation plate and is mainly applied to the offshore field.

The offshore floating platform comprises a platform top plate 1, a supporting frame 2, a platform main body 3 and a heave plate 4. The platform roof 1 is mounted on top of a support frame 2, the support frame 2 is mounted on top of a platform body 3, and heave plates 4 are suspended below the platform body 3 by a plurality of anchor chains 5. The platform top plate 1 can be a metal plate to keep the stability of installing the photovoltaic power generation plate. The support frame 2 may be a metal frame structure to maintain stability of the support platform roof 1. The heave plate 4 may be a metal plate to lower the centre of gravity of the offshore floating platform. If desired, corrosion protection layers may be applied to each metal part.

The platform body 3 plays a role in buoyancy and also plays a role in supporting and maintaining structural stability. The platform body 3 is composed of a plurality of concrete bases 31, a plurality of vertical supports 32, a plurality of horizontal supports 33 and a plurality of pontoons 34.

The vertical direction in the present utility model means the height direction of the deck body 3 or the direction perpendicular to the horizontal plane, and the horizontal direction in the present utility model means the width or length direction of the deck body 3 or the direction parallel to the horizontal plane.

The number of the concrete bases 31 is more than 4, each concrete base 31 occupies one corner of the platform main body 3, and a transverse bracket 33 is connected between every two adjacent concrete bases 31 to improve the connection stability between the concrete bases 31. The cross support 33 may be a metal column or a plastic column, and the shape is not limited. The two ends of the cross bracket 33 are positioned in two concrete bases 31, and are integrally cast and connected with the concrete bases 31.

The plurality of concrete foundations 31 and the plurality of cross braces 33 are sequentially arranged in a variable shape structure, for example, a quadrangle, a pentagon, a hexagon, etc. Each concrete base 31 is a corner of the polytropic structure and each cross brace 33 is an edge of the polytropic structure. Preferably, the plurality of concrete foundations 31 and the plurality of cross braces 33 form a deformation structure similar to the shape of the support frame 2, e.g., the support frame 2 and the deformation structure are both quadrangular, pentagonal, hexagonal, etc.

Each concrete base 31 is connected with a vertical support 32, and a horizontal support 33 is preferably a metal pipe column, and the shape is not limited. The lower end of the vertical support 32 is positioned in the concrete base 31 below, and is integrally cast and connected with the concrete base 31. The upper end of the vertical support 32 is fixedly connected with the support frame 2, and the support frame 2 above is supported by the vertical support 32.

Each vertical support 32 is sleeved with a pontoon 34, and the pontoon 34 is a plastic pontoon, preferably PE pontoon, which has anti-corrosion performance and does not need additional anti-corrosion measures. The pontoons 34 are lower in height than the vertical supports 32. The lower end of the pontoon 34 is positioned in the concrete foundation 31 below, and is integrally cast with the concrete foundation 31. A certain gap is reserved between the upper end of the pontoon 34 and the bottom surface of the supporting frame 2, and the pontoon 34 mainly plays a role in providing buoyancy and no longer bears the supporting function. The tube diameter of pontoon 34 may be designed to meet buoyancy requirements based on the specific weight of the offshore floating platform and the equipment above.

According to the offshore floating platform provided by the utility model, the upper end of the vertical support 32 extends out of the upper part of the pontoon 34, the upper end of the vertical support 32 is fixedly connected with the supporting frame 2, the supporting frame 2 above is supported by the vertical support 32, the pontoon 34 only plays a role in providing buoyancy, the stress is small, and the service life of the pontoon 34 is prolonged.

The offshore floating platform provided by the utility model has the advantages that the lower ends of the pontoons 34, the lower ends of the vertical brackets 32 and the two ends of the transverse brackets 33 are respectively integrally poured and connected in the concrete base 31, so that the offshore floating platform is stable in connection, durable in use and easy to construct.

The offshore floating platform provided by the utility model reduces the gravity center of the offshore floating platform and reduces the overturning risk by configuring the concrete base 31 and the heave plate 4.

The integrally poured connection related in the utility model can also be called integrally poured molding, is an existing connection mode in the field of concrete molding, and is stable in connection and convenient for construction.

Specifically, each concrete foundation 31 is simultaneously molded by a mold, and when each concrete foundation 31 is molded by a mold, the lower ends of the pontoons 34 and the lower ends of the vertical brackets 32 are inserted into the mold, the two ends of the horizontal brackets 33 are inserted into the adjacent two molds, and then concrete slurry is poured into the molds, and after solidification, the platform main body 3 is formed.

In one embodiment, as shown in fig. 6-7 and 10, a first recess 322 is formed in the lower end of the upright support 32. The top surface of the concrete foundation 31 has a first protrusion 311, and the first protrusion 311 is coupled in a first recess 322.

In this embodiment, the vertical support 32 may be a solid structure, and the lower end portion thereof has a first groove 322 formed therein. When the integrated casting is performed, the concrete slurry can enter the first groove 322, after solidification, the first convex part 311 is formed on the top surface of the concrete base 31, the first convex part 311 is integrally cast and connected in the first groove 322, the first convex part 311 is connected with the groove wall of the first groove 322, the connection area between the lower end part of the vertical support 32 and the concrete base 31 is increased, and the connection stability of the vertical support 32 and the concrete base 31 is further improved.

In one embodiment, as shown in FIGS. 6-7 and 10, the vertical support 32 is a standpipe 321, and a standpipe baffle 323 is provided in the lower end of the standpipe 321, with the first recess 322 below the standpipe baffle 323. The first protrusion 311 is connected to the standpipe partition 323.

In this embodiment, the vertical support 32 is a vertical tube 321, which is beneficial to reducing the weight of the structure, and may be a round tube or a square tube. A standpipe partition 323 is arranged at the lower end part of the standpipe 321, so that a first groove 322 is automatically formed below the standpipe partition 323, the first convex part 311 is integrally poured and connected with the standpipe partition 323 and the pipe wall of the standpipe 321, and the connecting structure is stable.

Preferably, the standpipe baffles 323 are integrally formed with the walls of the standpipe 321.

In one embodiment, as shown in fig. 6, 8 and 10, an annular groove 341 is formed between the lower end of the pontoon 34 and the lower end of the vertical support 32.

The top surface of the concrete foundation 31 has an annular protrusion 312, the first protrusion 311 is in the annular protrusion 312, and the annular protrusion 312 is connected in the annular groove 341.

In this embodiment, an annular groove 341 is formed between the inner surface of the lower end portion of the pontoon 34 and the outer surface of the lower end portion of the vertical support 32. During integral casting, the concrete slurry enters the annular groove 341, and after solidification, an annular protrusion 312 is formed on the top surface of the concrete base 31, and the annular protrusion 312 surrounds the first protrusion 311. The annular convex part 312 is integrally poured and connected in the annular groove 341, the annular convex part 312 is connected with the groove wall of the annular groove 341, the connection area of the lower end part of the pontoon 34 and the lower end part of the vertical support 32 with the concrete base 31 is increased, and the connection stability of the pontoon 34 and the vertical support 32 with the concrete base 31 is further improved.

In one embodiment, as shown in fig. 6, 8 and 10, an annular spacer 324 is connected between the inner surface of pontoon 34 and the outer surface of vertical support 32, and an annular groove 341 is located below standpipe spacer 323. Annular boss 312 is connected to annular spacer 324.

In this embodiment, an annular gap is formed between the inner surface of the pontoon 34 and the outer surface of the vertical support 32 to facilitate the threading of the pontoon 34 onto the vertical support 32. An annular spacer 324 is provided in the lower end region of the annular gap, the annular spacer 324 being connectable either integrally with the pontoon 34 or with the vertical support 32. The annular spacer 324 is used to close off the annular gap to automatically form an annular groove 341 below the annular spacer 324. The annular convex part 312 is integrally cast and connected with the annular baffle 324, the wall of the cylinder of the pontoon 34 and the wall of the vertical pipe 321, and the connecting structure is stable.

In one embodiment, as shown in fig. 6 and 9-10, the end of the cross brace 33 facing the concrete foundation 31 has a second groove 332 and the side of the concrete foundation 31 facing the cross brace 33 has a second protrusion 313. The second protrusion 313 is connected in the second groove 332.

In this embodiment, the cross support 33 may be a solid structure, and two ends of the cross support are respectively formed with a second groove 332. During integral casting, concrete slurry enters the second groove 332, after solidification, a second convex part 313 is formed on the side surface of the concrete base 31, the second convex part 313 is integrally cast and connected in the second groove 332, the second convex part 313 is connected with the groove wall of the second groove 332, the connection area between the end part of the transverse bracket 33 and the concrete base 31 is increased, and the connection stability of the transverse bracket 33 and the concrete base 31 is further improved.

In one embodiment, as shown in fig. 6 and 9-10, the cross bracket 33 is a cross tube 331, and cross tube baffles 333 are respectively disposed at two ends of the cross tube 331, and the second groove 332 is located on a side of the cross tube baffles 333 facing the concrete foundation 31. The second protruding portion 313 is connected to the cross pipe partition 333.

In this embodiment, the cross support 33 is a cross tube 331, which is beneficial to reducing the weight of the structure, and may be a round tube or a square tube. The cross tube partition plates 333 are respectively arranged at the two ends of the cross tube 331, so that the second grooves 332 are automatically formed at the outer sides of the cross tube partition plates 333, and the second protruding parts 313 are integrally cast and connected with the cross tube partition plates 333 and the tube walls of the cross tube 331, so that the connecting structure is stable.

Preferably, the cross tube diaphragm 333 is integrally formed with the tube wall of the cross tube 331.

In one embodiment, as shown in fig. 1-2 and 10, the bottom of each concrete foundation 31 is provided with a connector 6.

The connecting piece 6 comprises a T-shaped connecting end 61 and an anchor chain connecting end 62, the T-shaped connecting end 61 is integrally poured and connected in the concrete base 31, the anchor chain connecting end 62 is positioned below the concrete base 31, and the anchor chain 5 is connected with the anchor chain connecting end 62.

In this embodiment, in order to facilitate the connection of the anchor chain 5 to the concrete foundation 31, one connecting member 6 is integrally cast on the concrete foundation 31. The connector 6 includes a T-shaped connector end 61 and a chain connector end 62. The T-shaped connection end 61 is integrally cast and connected in the concrete base 31, and the connection with the concrete base 31 is stable. The anchor chain connection end 62 is located below the concrete foundation 31 and has mounting holes 621 for the anchor chain 5 to pass through for fixation.

In one embodiment, as shown in fig. 1-3, the platform roof 1 and the support frame 2 are rectangular, and a vertical bracket 32 is connected below each corner of the support frame 2.

In this embodiment, the supporting frame 2, the platform top plate 1 and the following-up shape are rectangular structures, and correspondingly, the platform main body 3 includes four concrete bases 31, four vertical supports 32, four horizontal supports 33 and four pontoons 34. The four concrete bases 31 and the four vertical supports 32 form a rectangular structure, each corner of the supporting frame 2 is connected with one vertical support 32, and the four corners of the supporting frame 2 are supported by the four vertical supports 32, so that the supporting structure is stable.

In one embodiment, as shown in fig. 1-3, the support frame 2 comprises two first support bars 21 arranged in parallel and two second support bars 22 arranged in parallel. The two first support rods 21 are connected with the two second support rods 22 to form a groined structure. A reinforcing plate 23 is connected between the first support bar 21 and the second support bar 22.

In this embodiment, the supporting frame 2 has a zigzag structure, which is formed by connecting two first supporting rods 21 and two second supporting rods 22, and the first supporting rods 21 are perpendicular to the second supporting rods 22. A reinforcing plate 23 is installed at the connection of the first support bar 21 and the second support bar 22, and stability of the first support bar 21 and the second support bar 22 is improved. The upper end of the vertical support 32 is connected to the connection part of the first support bar 21 and the second support bar 22, and the connectable area of the connection part is large, the structural strength is high, and the connection is more convenient and firm.

The platform roof 1 is fixedly installed on the support frame 2, and two ends of the first support rod 21 and two ends of the second support rod 22 extend out of the platform roof 1 respectively, so that the platform roof 1 can be supported.

The above technical schemes can be combined according to the need to achieve the best technical effect.

The foregoing is only illustrative of the principles and preferred embodiments of the present utility model. It should be noted that several other variants are possible to those skilled in the art on the basis of the principle of the utility model and should also be considered as the scope of protection of the present utility model.

Claims

1. The marine floating platform is characterized by comprising a platform top plate, a supporting frame, a platform main body and a heave plate which are sequentially connected from top to bottom;

the heave plate is connected with each concrete base through an anchor chain.

2. The offshore floating platform of claim 1, wherein the vertical support has a first recess formed in a lower end thereof;

3. The offshore floating platform of claim 2, wherein the vertical support is a riser, a riser bulkhead is provided in a lower end of the riser, and the first recess is below the riser bulkhead;

the first protrusion is connected with the standpipe baffle.

4. An offshore floating platform according to claim 3, wherein an annular groove is formed between the lower end of the pontoon and the lower end of the vertical support;

5. The offshore floating platform of claim 4, wherein an annular spacer is connected between the inner surface of the pontoon and the outer surface of the vertical support, the annular spacer being positioned below the riser spacer;

the annular convex part is connected with the annular partition plate.

6. A marine floating platform according to claim 2 or 3, wherein the end of the cross brace facing the concrete base has a second recess, the side of the concrete base facing the cross brace having a second protrusion;

the second protrusion is connected in the second groove.

7. The offshore floating platform of claim 6, wherein the cross brace is a cross pipe, cross pipe baffles are respectively arranged in two ends of the cross pipe, and the second groove is positioned on one side of the cross pipe baffles facing the concrete base;

the second convex part is connected with the transverse pipe partition plate.

8. The offshore floating platform of claim 1, wherein a connecting member is provided at the bottom of each concrete foundation;

9. The offshore floating platform of claim 1, wherein the platform roof and the support frame are rectangular, and one of the vertical braces is connected below each corner of the support frame.

10. The offshore floating platform according to claim 9, wherein the support frame comprises two first support bars arranged in parallel and two second support bars arranged in parallel;