CN120357816A - Large-span offshore photovoltaic erection structure system - Google Patents

Abstract

The invention discloses a large-span offshore photovoltaic erection structure system which comprises a pile foundation, a support structure and a photovoltaic panel, wherein at least the bottom of the pile foundation is fixed on the sea, the support structure is at least partially erected on the sea, the support structure is used for arranging the photovoltaic panel and comprises a fixed support and a flexible support, the fixed support is connected to two sides of the flexible support, the fixed support is arranged at the free end of the pile foundation, the flexible support comprises a traction rope, an erection piece and a pulling-resistant structure, the two sides of the erection piece are connected with the traction rope, the traction rope is connected with the fixed support, one end of the pulling-resistant structure is used for being fixed on the sea or connected with the pile foundation, and the other end of the pulling-resistant structure is connected with the erection piece. Both ends of flexible support all are connected with the fixed bolster to the fixed bolster sets up on the stake basis, and consequently, flexible support alright be partial unsettled setting between two fixed bolsters, and then alright reduce the quantity of using of erect in-process pile foundation, when having reduced construction degree of difficulty and cost, also reduced the influence to the water environment.

Description

Large-span offshore photovoltaic erection structure system

Technical Field

The invention relates to the technical field of offshore photovoltaic power generation, in particular to a large-span offshore photovoltaic erection structure system.

Background

In the construction of traditional offshore photovoltaic power stations, fixed photovoltaic supports are mostly adopted. The fixed photovoltaic support is stable in structure, but needs a large amount of dense pile foundations to provide support, so that the construction cost and difficulty are increased, and the marine ecological environment is influenced to a certain extent. Although the flexible support is used in engineering, the flexible support has some problems, such as unstable structure caused by the influence of upward pulling force in the marine complex environment, large deformation and shaking of the flexible support under the action of strong wind to influence the normal operation of the photovoltaic module, and excessive use amount of the flexible load-bearing inhaul cable caused by complete use of the flexible support, thereby obviously increasing the construction cost.

Disclosure of Invention

The invention provides a large-span offshore photovoltaic erection structure system, which aims to solve the problems that in the construction of a traditional offshore photovoltaic power station, a fixed photovoltaic support depends on a large number of dense pile foundation supports, so that the construction cost is increased, the construction difficulty is increased, and the marine ecological environment is negatively influenced.

The application provides a large-span offshore photovoltaic erection structure system which comprises a pile foundation, a support structure and a pulling-resistant structure, wherein the pile foundation is at least fixed at the bottom of the pile foundation, the support structure is at least partially erected on the sea, the support structure is used for arranging a photovoltaic panel, the support structure comprises a fixed support and a flexible support, the fixed support is connected to two sides of the flexible support, the fixed support is arranged at the free end of the pile foundation, the flexible support comprises a pulling rope, an erection piece and the pulling-resistant structure, the pulling rope is connected to two sides of the erection piece, the pulling rope is connected with the fixed support, one end of the pulling-resistant structure is used for being fixed on the sea or connected with the pile foundation, and the other end of the pulling-resistant structure is connected with the erection piece.

In some embodiments, the pile foundation comprises a plurality of fixing piles, the fixing support comprises a plurality of hack levers, the fixing piles are arranged in at least two rows, each fixing pile is provided with a hack lever, diagonal bracing and connecting rods are connected between adjacent hack levers, the diagonal bracing is used for connecting the hack levers in the same row, and the connecting rods are used for connecting the hack levers in different rows.

In some embodiments, the spacing between the same row of the fixed piles is L1 m, the spacing between the rows of the fixed piles is L2 m, 2≤L1≤5, 3≤L2≤8.

In some embodiments, the direction along the fixed support to the flexible support is transverse, and the direction along the axial direction of the pile foundation is longitudinal;

along the transverse direction, the flexible support comprises at least two base sections connected end to end, each base section is provided with at least one erection piece for arranging a photovoltaic panel, and the erection piece is connected with the traction cable;

the flexible support further comprises a support pile, one end of the support pile is used for being fixed on the sea floor, and the other end of the support pile supports the joint of two adjacent foundation sections.

In some embodiments, the fixed pile has a first telescoping structure connected with the hack lever.

In some embodiments, the fixed pile comprises a column and a movable seat, the movable seat is in threaded connection with the column to form the first telescopic structure, and one end of the movable seat, which is far away from the column, is connected with the hack lever.

In some embodiments, the movable seat comprises a threaded column and a disc structure, the fixing pile is provided with a threaded hole, the threaded column is arranged in the threaded hole, the disc structure is arranged at one end of the threaded column, which is close to the hack lever, and the diameter of the disc structure is larger than that of the threaded column.

In some embodiments, a support structure is disposed between the threaded post and a side of the disc structure proximate to the threaded post.

In some embodiments, the axial direction of the fixing pile is set to be longitudinal;

Along the longitudinal direction, the erection piece comprises an upper chord and a lower chord, the upper chord and the lower chord are oppositely arranged, a bevel web is arranged between the upper chord and the lower chord, and the bevel web is arranged along the diagonal line of the opposite areas of the upper chord and the lower chord.

In some embodiments, the anti-pulling structure comprises an anti-pulling pile and an anti-pulling rope, one end of the anti-pulling pile is connected with the anti-pulling rope, the other end of the anti-pulling pile is used for being fixed on the sea floor, and one end of the anti-pulling rope, which is far away from the anti-pulling pile, is connected with the erection piece;

an adjusting mechanism for tightening or loosening the anti-pulling rope is arranged between the anti-pulling pile and the anti-pulling rope.

Compared with the prior art, the large-span offshore photovoltaic erection structure system has the beneficial effects that the large-span offshore photovoltaic erection structure system comprises the pile foundation and the support structure, the support structure comprises the fixed support and the flexible support, the fixed supports are connected to the two ends of the flexible support, and the fixed supports are arranged on the pile foundation, so that the use amount of pile foundations in the erection process can be obviously reduced by adopting the flexible support structure, the construction difficulty and the construction cost are reduced, and the influence on the water body environment is reduced.

Drawings

FIG. 1 is a schematic overall construction of an embodiment of the present application;

FIG. 2 is an enlarged schematic view of the structure shown at A in FIG. 1;

FIG. 3 is an enlarged schematic view of the structure at D in FIG. 2;

FIG. 4 is an enlarged schematic view of the structure at B in FIG. 1;

FIG. 5 is an enlarged schematic view of the structure at C in FIG. 1;

FIG. 6 is a schematic diagram of the overall structure at another perspective of one embodiment of the present application;

FIG. 7 is an enlarged schematic view of the structure at E in FIG. 6;

FIG. 8 is an enlarged schematic view of the structure at G in FIG. 7;

fig. 9 is an enlarged schematic view of the structure at F in fig. 6.

100. Pile foundation, 11, fixed piles, 111, columns, 112, movable seats, 1121, threaded columns, 1122, disc structures, 1123, supporting structures, 01, first telescopic structures, 200, supporting structures, 21, fixed supports, 211, hack levers, 212, connecting rods, 213, diagonal braces, 22, flexible supports, 221, traction cables, 222, erection members, 2221, upper strings, 2222, lower strings, 2223, diagonal webs, 223, anti-pulling structures, 2231, anti-pulling cables, 2232, anti-pulling piles, 224, supporting piles, 02, foundation sections, 03, second telescopic structures, 400, photovoltaic panels, X, transverse, Y and longitudinal directions.

Detailed Description

In order that those skilled in the art may better understand the technical solutions of the present invention, the following detailed description of the present invention with reference to the accompanying drawings is provided for exemplary and explanatory purposes only and should not be construed as limiting the scope of the present invention.

It should be noted that like reference numerals and letters refer to like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

It should be noted that, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like refer to an azimuth or a positional relationship based on that shown in the drawings, or that the inventive product is commonly put in place when used, merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal," "vertical," "overhang," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

The invention is described in further detail below with reference to the accompanying drawings.

As shown in fig. 1 and 2, the large-span offshore photovoltaic erection structure system comprises a pile foundation 100 at least the bottom of which is fixed on the sea floor and a support structure 200 at least partially erected on the sea, wherein the support structure 200 is used for arranging a photovoltaic panel 400, and the pile foundation 100 provides a fulcrum for the whole large-span offshore photovoltaic erection structure system on the sea.

Referring to fig. 1 again, the support structure 200 includes a fixing support 21 and a flexible support 22, the fixing support 21 is connected to two sides of the flexible support 22, the fixing support 21 and the flexible support 22 are both used for setting a photovoltaic panel 400, the fixing support 21 is fixedly arranged at a free end of a pile foundation 100 and can be fixed by bolts, the flexible support 22 includes a traction cable 221, an erection member 222 and a pulling-resistant structure 223, two sides of the erection member 222 are both connected with the traction cable 221, the traction cable 221 is connected with the fixing support 21, the erection member 222 can be suspended between the two fixing supports 21 through the traction cable 221, and the erection member 222 is used for fixing the photovoltaic panel 400, so that the use amount of pile foundations in the erection process can be reduced, the construction difficulty and the cost are reduced, and the influence on the water environment is reduced. It will be appreciated that the photovoltaic panel 400 is erected on the sea and is affected by the air flow, and because the photovoltaic panel 400 is in a plate-shaped structure and is greatly affected by the air flow, the anti-pulling structure 223 can exert a tensioning effect on the erection element 222, and further can pull the erection element 222 under the influence of the air flow, and further indirectly exert a pulling effect on the photovoltaic panel 400, so that the photovoltaic panel 400 is prevented from being blown over, and besides, the anti-pulling structure 223 can disperse the acting force of the air flow on the whole flexible support 22, so that the acting force between the flexible support 22 and the fixed support 21 is reduced, and the whole support structure 200 also has a structural reinforcing effect.

The technical details of the respective components will be described one by one.

In some embodiments, as shown in fig. 1,2, 6 and 7, the pile foundation 100 comprises a plurality of fixing piles 11, the fixing support 21 comprises a plurality of frame rods 211, the fixing piles 11 are columns 111 erected on the sea, one ends of the fixing piles are fixed on the sea bottom, the other ends of the fixing piles extend out of the sea surface, the fixing piles 11 are arranged in at least two rows, each fixing pile 11 is provided with a frame rod 211, inclined support rods 213 and connecting rods 212 are connected between adjacent frame rods 211, the inclined support rods 213 are used for connecting the frame rods 211 in the same row, and the connecting rods 212 are used for connecting the frame rods 211 in different rows. The stability of the pile foundation 100 can be improved by the fixing piles 11, the frame rods 211 are connected with each other to form the integral support structure 200, the integral stability of the fixing support 21 can be improved, the fixing support 21 and the pile foundation 100 can bear the traction force from the flexible support 22 well, and the stability and the firmness of the whole large-span offshore photovoltaic erection structure system are improved.

In some embodiments, as shown in fig. 1 and 2, the spacing between the same-column fixing piles 11 is L1 m, the column spacing between the fixing piles 11 is L2 m, 2≤L1≤5, and 3≤L2≤8. According to practical application, setting the fixing piles 11 according to the data can reduce the number of the fixing piles 11, namely the number of pile foundations, under the condition of ensuring the overall stability of the large-span offshore photovoltaic erection structure system.

In some embodiments, as shown in fig. 1 and 6, the direction from the fixed support 21 to the flexible support 22 is transverse (X), and the axial direction of the pile foundation 100 is longitudinal (Y);

As shown in fig. 1 and 6, along the transverse direction X, the flexible support 22 includes at least two base sections 02 connected end to end, that is, the flexible support 22 is formed by splicing a plurality of parts with the same structure end to end, each base section 02 has at least one erection member 222 for setting the photovoltaic panel 400, and the erection member 222 is connected with the traction cable 221. The flexible support 22 further comprises a support peg 224, one end of the support peg 224 being adapted to be secured to the sea floor and the other end supporting the junction of two adjacent foundation sections 02.

In practical use, the flexible support 22 generally has a long span, and the long span can make the flexible support 22 easy to shake, and place a large burden on the traction connection structures (including the traction ropes 221) on both sides of the flexible support 22. As shown in fig. 1 and 6, in the above manner, the flexible support 22 is divided into the plurality of base sections 02, and the end portions of the base sections 02 are supported by the support piles 224, so that each base section 02 has a span with a proper length, the plurality of base sections 02 are connected end to end, so that the whole flexible support 22 can realize a longer span, and the middle area of the whole flexible support 22 is supported and fixed by the support piles 224, so that the middle of the flexible support 22 is not easy to shake, and the burden of pulling connection structures (including the pulling ropes 221) at two ends of the flexible support 22 is reduced.

In some embodiments, as shown in fig. 1 and 2, the fixing piles 11 have a first telescopic structure 01, and the first telescopic structure 01 is connected with the hack lever 211.

As shown in fig. 1 and 5, the end of the support pile 224, which is connected to the foundation section 02, has a second telescopic structure 03, and the second telescopic structure 03 is used for adjusting the height of the end of the foundation section 02 relative to the sea floor. It will be appreciated that the second telescopic structure 03 and the first telescopic structure 01 may have the same structure, so as to facilitate assembly in practical construction, and the support piles 224 and the fixing piles 11 may have the same pile body structure (generally, cylindrical cement steel columns).

As shown in fig. 2 and 3, the first telescopic structure 01 may have the following structure:

The fixed pile 11 includes a column 111 and a movable seat 112, and the movable seat 112 is screwed with the column 111 to form a first telescopic structure 01.

The movable seat 112 is connected to the frame bar 211 at an end far from the column 111. The screw connection direction of the movable seat 112 and the fixed pile 11 is consistent with the extension direction of the hack lever 211 and the fixed pile 11, and then the movable seat 112 can be moved relative to the end of the fixed pile 11 by rotating the movable seat 112 in the erection process, so that the hack lever 211 fixed at the other side of the movable seat 112 can be raised or lowered relative to the sea surface. The spiral lifting mode is simple in structure, easy to apply and capable of reducing the erection difficulty of the large-span offshore photovoltaic erection structural system comprehensively.

In some embodiments, as shown in fig. 3 and 8, the movable seat 112 includes a threaded column 1121 and a disc structure 1122, the fixing pile 11 is provided with a threaded hole, the threaded column 1121 is provided in the threaded hole, the disc structure 1122 is provided at one end of the threaded column 1121 near the frame rod 211, and the diameter of the disc structure 1122 is larger than the diameter of the threaded column 1121. The disc structure 1122 may increase the attachable area of the movable seat 112 and the hanger bar 211 to facilitate the provision of an attachment structure, such as welding, bolting, etc. So that the hack lever 211 can be more firmly fixed with respect to the fixing piles 11.

In some embodiments, as shown in fig. 8, a supporting structure 1123 is disposed between one side of the disc structure 1122 close to the threaded post 1121 and the threaded post 1121, and the supporting structure 1123 may be a triangle structure, where one side is connected to the side of the disc structure 1122 and the other side is connected to the threaded post 1121, so as to perform a good supporting function on the edge of the disc structure 1122. In practice, the edges of the disk structure 1122 are relatively thin and easily deformed when subjected to a relatively large force, and the support structure 1123 can greatly increase the load bearing capacity of the edges of the disk structure 1122.

In some embodiments, the axial direction of the fixing pile 11 is set to be a longitudinal direction Y, as shown in fig. 6 and 9, along the longitudinal direction Y, the erection piece 222 comprises an upper chord 2221 and a lower chord 2222, the upper chord 2221 and the lower chord 2222 are two oppositely arranged rod-shaped brackets, the upper chord 2221 and the lower chord 2222 are oppositely arranged, a bevel web 2223 is arranged between the upper chord 2221 and the lower chord 2222, and the bevel web 2223 is arranged along a diagonal line of opposite areas of the upper chord 2221 and the lower chord 2222. The angled web 2223 may interconnect the upper and lower chords 2221, 2222 and form a plurality of triangular structures between the upper and lower chords 2221, 2222, thereby securing the upper and lower chords 2221, 2222 relative to one another to form the structurally stable mount 222.

In some embodiments, as shown in fig. 4 and 9, the anti-pulling structure 223 includes an anti-pulling pile 2232 and an anti-pulling rope 2231, the anti-pulling pile 2232 is a column 111 erected on the sea, one end of the anti-pulling pile 2232 is fixed on the sea bottom, the other end extends out of the sea surface, one end of the anti-pulling pile 2232 is connected with the anti-pulling rope 2231, the other end of the anti-pulling rope 2231 is used for being fixed on the sea bottom, one end of the anti-pulling rope 2231, which is far away from the anti-pulling pile 2232, is connected with the erection piece 222, in other embodiments, the anti-pulling pile 2232 can be the same structure as the fixing pile 11, or the anti-pulling pile 2232 is the fixing pile 11, which can reduce the variety of each component in the erection process and is convenient for mass production and transportation.

In some embodiments, an adjustment mechanism for tightening or loosening the pull-out resistance cable 2231 is provided between the pull-out resistance cable 2232 and the pull-out resistance cable 2231. In actual use, if the pull-out preventing cable 2231 is loose, the flexible support 22 will shake easily under the action of the air flow, and at this time, the operator can shrink the pull-out preventing cable 2231 through the adjusting mechanism, so that the pull-out preventing cable 2231 can tighten the supporting member 222 of the flexible support 22 to prevent the flexible support 22 from excessively shaking and being blown over by the air flow.

In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected through an intermediary, or in communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. A large-span offshore photovoltaic racking system comprising:

a pile foundation (100) having at least a bottom portion fixed to the sea floor;

A support structure (200) at least partially erected on the sea, wherein the support structure (200) is used for arranging a photovoltaic panel (400), the support structure (200) comprises a fixed support (21) and flexible supports (22), the fixed support (21) is connected to two sides of the flexible supports (22), and the fixed support (21) is arranged at the free end of the pile foundation (100);

The flexible support (22) comprises a traction rope (221), an erection piece (222) and a pulling-resistant structure (223), wherein both sides of the erection piece (222) are connected with the traction rope (221), the traction rope (221) is connected with the fixed support (21), and one end of the pulling-resistant structure (223) is used for being fixed on the sea floor or connected with the pile foundation (100), and the other end of the pulling-resistant structure is connected with the erection piece (222).

2. The large-span offshore photovoltaic erection structure system according to claim 1, wherein the pile foundation (100) comprises a plurality of fixing piles (11), the fixing support (21) comprises a plurality of hack levers (211), the fixing piles (11) are arranged in at least two rows, each fixing pile (11) is provided with a hack lever (211), diagonal bracing (213) and connecting rods (212) are connected between adjacent hack levers (211), the diagonal bracing (213) is used for connecting the hack levers (211) in the same row, and the connecting rods (212) are used for connecting the hack levers (211) in different rows.

3. The large-span offshore photovoltaic erection structure system according to claim 2, wherein the distance between the fixing piles (11) in the same row is L1 meter, the distance between the fixing piles (11) in the row is L2 meters, L1 is 2-5, and L2 is 3-8.

4. The long-span offshore photovoltaic erection structure system of claim 2, characterized in that the direction along the fixed support (21) to the flexible support (22) is transverse (X) and the axial direction along the pile foundation (100) is longitudinal (Y);

Along the transverse direction (X), the flexible support (22) comprises at least two base sections (02) connected end to end, each base section (02) having at least one mounting element (222) for the arrangement of a photovoltaic panel (400), the mounting element (222) being connected to the traction cable (221);

The flexible support (22) further comprises a support pile (224), one end of the support pile (224) is used for being fixed on the sea floor, and the other end of the support pile supports the joint of two adjacent foundation sections (02).

5. The long-span offshore photovoltaic erection structure system of claim 4 wherein said fixed piles (11) have a first telescopic structure (01), said first telescopic structure (01) being connected with said frame bars (211).

6. The long-span offshore photovoltaic erection structure system of claim 5 wherein said fixed piles (11) comprise a column (111) and a movable seat (112), said movable seat (112) being screwed with said column (111) to form said first telescopic structure (01), an end of said movable seat (112) remote from said column (111) being connected with said frame rod (211).

7. The large-span offshore photovoltaic erection structure system of claim 6, wherein the movable seat (112) comprises a threaded column (1121) and a disc structure (1122), the fixed pile (11) is provided with a threaded hole, the threaded column (1121) is arranged in the threaded hole, the disc structure (1122) is arranged at one end of the threaded column (1121) close to the hack lever (211), and the diameter of the disc structure (1122) is larger than that of the threaded column (1121).

8. The large span offshore photovoltaic erection structure system of claim 7 wherein a support structure (1123) is provided between the side of the disc structure (1122) proximate to the threaded post (1121) and the threaded post (1121).

9. A long span offshore photovoltaic erection structure system according to claim 3, characterized in that the axial direction in which the fixing piles (11) are arranged is longitudinal (Y);

Along vertical (Y), erect piece (222) including last chord (2221) and lower chord (2222), go up chord (2221) with lower chord (2222) set up relatively, go up chord (2221) with be provided with oblique web (2223) between lower chord (2222), oblique web (2223) are along go up chord (2221) with the diagonal setting in the opposite region of lower chord (2222).

10. The long-span offshore photovoltaic installation structure system according to claim 1, characterized in that the anti-pulling structure (223) comprises an anti-pulling pile (2232) and an anti-pulling rope (2231), one end of the anti-pulling pile (2232) is connected with the anti-pulling rope (2231), the other end is used for being fixed on the sea floor, and one end of the anti-pulling rope (2231) away from the anti-pulling pile (2232) is connected with the installation piece (222);

An adjusting mechanism for tightening or loosening the anti-pulling rope (2231) is arranged between the anti-pulling pile (2232) and the anti-pulling rope (2231).