CN219268772U - Suspension cable support structure of offshore photovoltaic power station - Google Patents

Abstract

The utility model provides a suspension cable support structure of an offshore photovoltaic power station, which comprises cable structures which are positioned above the sea level and are arranged in parallel with each other, and support piles which are anchored with the seabed mud surface; two ends of the cable structure are respectively connected to the support piles at two sides, and the cable structure is connected with a photovoltaic assembly module; the photovoltaic module comprises a photovoltaic module and a triangular truss module structure, wherein the triangular truss module structure is connected between the cable structures on the adjacent sides in the transverse direction, the photovoltaic module is laid on an inclined truss surface of which the triangular truss module structure forms an illumination inclination angle, and the illumination inclination angle is arranged along the longitudinal direction of the cable structure direction; according to the utility model, through the photovoltaic module longitudinal inclination angle arrangement technology, namely, the inclination direction of the photovoltaic module is arranged along the direction of the cable structure, the photovoltaic module can be fully paved in the photovoltaic module.

Description

Suspension cable support structure of offshore photovoltaic power station

Technical Field

The utility model relates to the technical field of offshore photovoltaic power generation, in particular to a suspension cable support structure of an offshore photovoltaic power station.

Background

With the rapid consumption of land high-quality photovoltaic construction land in China, the competition of land resources is extremely intense, and even the land resources become a key condition for developing photovoltaic projects. In order to solve the contradiction between increasingly outstanding land resources and photovoltaic market development demands, the full utilization of the sea area resources in coastal offshore areas in China has very broad market prospect.

The electrical system of the offshore photovoltaic power generation field is basically consistent with that of the land photovoltaic, but the offshore photovoltaic support system is required to bear the load actions of wind, snow, waves, sea ice and the like and the corrosion damage of ocean high humidity and high salt due to the special offshore environment, and the application of the traditional support structure form in the fields is proved to be the forefront and elbow, and the offshore photovoltaic power generation field is usually realized through a more complex and heavy structural system. The traditional structural system has a longitudinal inclination angle due to the heave relation of the cables, and the inclination angle of the photovoltaic modules in the module structure paved on the cables is matched in the direction inclined to the vertical direction of the cables, and the shielding interval between the photovoltaic modules is reserved, so that the span of the module structure is easily enlarged, the waste of the module structure is serious, the steel consumption of the module structure is overlarge, the illumination angle is influenced by the vertical inclination angle of the cables and the photovoltaic modules, the integral generating capacity is influenced, and the integral structure is caused to have larger transverse load and is unfavorable to the integral structure; meanwhile, under a large-span structural system, a solid web-shaped steel structure is often adopted as a module structure, and the steel consumption and the deformation of the structure are large.

Therefore, development of a support structure of an offshore photovoltaic power station suitable for coastal offshore areas is needed, which is not only helpful for solving the problems of large steel consumption, large deformation and the like of the large-span structure of the offshore photovoltaic suspension support structure, but also capable of solving the problem of low overall power generation caused by the fact that a photovoltaic module cannot reach an optimal illumination angle.

Disclosure of Invention

The utility model aims to provide a suspension cable support structure which is reliable in structure and capable of enabling a photovoltaic module to generate electricity at an optimal illumination angle while reducing the consumption of steel. For this purpose, the utility model adopts the following technical scheme:

a suspension cable support structure of an offshore photovoltaic power station comprises cable structures which are arranged above the sea level and are parallel to each other, and support piles which are anchored with the seabed mud surface; two ends of the cable structure are respectively connected to the support piles at two sides, and the cable structure is connected with a photovoltaic assembly module; a cross beam is connected between the support piles at the two lateral sides; the photovoltaic module comprises a photovoltaic module and a triangular truss module structure, wherein the triangular truss module structure is connected between the cable structures on the adjacent sides in the transverse direction, the photovoltaic module is paved on an inclined truss surface of which the triangular truss module structure forms an illumination inclination angle, and the inclined truss surface is arranged along the longitudinal direction paved by the cable structures; an anti-shielding interval is reserved in the longitudinal direction of the adjacent triangular truss module structures, and the anti-shielding interval is adjusted according to the illumination inclination angle matched with the photovoltaic module; and the transversely adjacent triangular truss module structures are connected through the same rope structure.

Further: the triangular truss module structure comprises an upper chord, a first lower chord, a second lower chord and a connecting rod structure; the upper chord member, the first lower chord member and the second lower chord member are laid in parallel in the transverse direction and perpendicular to the cable structure, and three ends of the triangular truss module structure are formed at the same time; the connecting rod structure connects the upper chord, the first lower chord and the second lower chord; extension parts are arranged at two ends of the first lower chord member or the second lower chord member, so that the transversely adjacent triangular truss module structures can be connected in a staggered mode.

Further: the two ends of the first lower chord member and the second lower chord member are provided with adjustable block rope connecting structures, and the adjustable block rope connecting structures comprise a flat plate, a buckle and a first connecting piece; the flat plate is arranged between the first lower chord or the second lower chord and the cable structure; the buckle and the first connecting piece are arranged in the two directions of the flat plate in a staggered mode, the buckle is connected with the cable structure, and the first connecting piece is connected with the first lower chord or the second lower chord so as to prevent the adjustable block cable connecting structure from slipping.

Further: the adjustable block rope connecting structure further comprises a block rope automatic locking mechanism which is arranged on the flat plate and connected with the rope structure, and the block rope automatic locking mechanism comprises a concave part which is vertically arranged on the upper opening of the flat plate and a rotatable limiting lock tongue; a shallow groove for the rope structure to pass through is formed in the concave part; the lock tongue is connected in the concave part and is in an upward rope locking state for the rope structure.

Further: the module connecting structures are rigidly connected and arranged between the transversely adjacent triangular truss module structures; the inter-module connecting structure comprises a horizontal connecting structure and a vertical connecting structure which can carry out error debugging in multiple directions; the horizontal connecting structure is provided with a first connecting plate and a second connecting piece on the connecting rod structures at two sides respectively, and a fixed point type point position and an adjustable point type point position which are matched with each other are formed on the connecting rod structures at two sides respectively through the first connecting plate and the second connecting piece; a lower horizontal support is connected between the first connecting plate and the second connecting piece; the vertical connecting structure is provided with a second connecting plate and a third connecting piece on the connecting rod structures at two sides respectively, and mutually matched fixed point type point positions and adjustable point types are formed on the connecting rod structures at two sides through the second connecting plate and the third connecting piece respectively; and a vertical diagonal brace is connected between the second connecting plate and the third connecting piece.

Further: the pile top of the support pile is provided with a pile rope connecting structure connected with the rope structure, and the pile rope connecting structure comprises an inner fixed connecting part connected with the support pile and an outer adjusting connecting part connected with the rope structure; the inner fixed connecting part is provided with an inner cylinder of the middle part, and a lower circular plate and an upper circular plate which are respectively connected with two end parts of the inner cylinder, wherein the lower circular plate is connected with and arranged at the pile top of the bracket pile; an outer cylinder sleeved outside the inner cylinder is arranged on the externally-adjusted connecting part; the rope structure is characterized in that third connecting plates are arranged at the end parts of the two ends of the rope structure, a fourth connecting plate connected with the third connecting plates is arranged on the outer cylinder, and the rope structure is in a self-adjusting limiting state through the rotation connection cooperation of the outer cylinder and the inner cylinder.

Further: the cable structure is provided with a cable length adjusting section at two ends of the cable structure, which are close to the side of the third connecting plate.

Further: the suspension cable support structure comprises an anchoring structure which is arranged at two ends of the suspension cable support structure and matched with the support piles, the anchoring structure is arranged under the seabed mud surface in an anchoring manner, and the suspension cable support structure comprises a pull rod, anchoring piles, wing plates and a fifth connecting plate; the wing plates are arranged on the outer surface of the anchoring pile; the fifth connecting plate is arranged at the upper part of the anchoring pile; one end of the pull rod is connected with the fifth connecting plate, the other end of the pull rod extends out of the mud surface to be connected with the pile top of the support pile, and a stay cable is connected between the pile top of the support pile and the pull rod.

Further: the suspension cable support structure further comprises a construction cable system which is connected and matched with the photovoltaic module, wherein the construction cable system is distributed on the pile tops of the support piles around a construction unit area and is matched with the pile cable connecting structure, and meanwhile, the construction cable system is in an integrated replacement state in the construction unit area and is used for hoisting and installing the photovoltaic module on the cable structure; the construction cable system comprises a construction cable, an electric hoist, a construction cable stand column and a construction cable cross beam; a through hole for the insertion fit of the construction cable upright post is formed in the inner cylinder; the upper part of the construction cable upright post is provided with a hanging part, the construction cable cross beam is connected between the construction cable upright posts on two sides in the transverse direction, and the construction cable is connected between the construction cable upright posts on two sides in the longitudinal direction; the construction cable and the construction cable beam can be connected to the hanging part in a staggered manner, or the construction cable can be connected to the construction cable beam; the electric hoist is hung on the construction cable and is in a hoisting state for the photovoltaic module.

Compared with the prior art, the utility model has the following beneficial effects:

according to the photovoltaic module longitudinal inclination angle arrangement technology, namely the photovoltaic module inclination direction is arranged along the direction of the cable structure, the photovoltaic module can be fully paved in the photovoltaic module, and a certain distance of shielding prevention interval is reserved between the photovoltaic module modules in the longitudinal direction, so that the span of the photovoltaic module is not required to be increased, the steel consumption of the rigid module support is not increased, and the overall consumption steel of the structure is greatly reduced. According to the utility model, the inclined plane formed by the triangular truss module structure can be used as a supporting surface of the photovoltaic module, so that the steel consumption of the truss structure is saved, the deformation of the load borne by the truss structure is small, and all the photovoltaic modules can be adjusted to reach the optimal illumination angle through the adjustable block cable connecting structure and the inter-module connecting structure, so that the maximum power generation capacity of the photovoltaic module is achieved.

Drawings

FIG. 1 is a plan view of a catenary support system of an offshore photovoltaic power plant of the present utility model;

FIG. 2 is an elevation view of a catenary support system of an offshore photovoltaic power plant of the present utility model;

FIG. 3 is a cross-sectional view of a photovoltaic module according to the present utility model;

FIG. 4 is a plan view of a photovoltaic module according to the present utility model;

FIG. 5 is an elevation view of a photovoltaic module according to the present utility model;

FIG. 6 is an elevation view of an adjustable module and cable connection structure of the present utility model;

FIG. 7 is a plan view of an adjustable module and cable connection structure of the present utility model;

FIG. 8 is a cross-sectional view of an adjustable module and cable connection structure of the present utility model;

FIG. 9 is a cross-sectional view of the module and cable connection automatic fastening device of the present utility model;

FIG. 10 is a plan view of the module and cable attachment automatic fastening device of the present utility model;

FIG. 11 is a plan view of a module-to-module connection of the present utility model;

FIG. 12 is an elevation view of a module-to-module connection of the present utility model;

FIG. 13 is a plan view of a cooperating connection means between modules of the present utility model;

FIG. 14 is an elevation view of a cooperative coupling means between adjacent photovoltaic module assemblies in accordance with the present utility model;

FIG. 15 is a schematic view of a cable connection of the present utility model;

FIG. 16 is an elevation view of an attachment structure for a lug plate type cable end of the present utility model;

FIG. 17 is a plan view of the lower circular plate of the lug plate type cable end connecting structure of the present utility model;

FIG. 18 is a plan view of a circular plate on the lug plate type cable end connection structure of the present utility model;

FIG. 19 is a plan view of a bracket pile and cross beam connection of the present utility model;

FIG. 20 is an elevation view of a bracket pile and cross beam connection of the present utility model;

FIG. 21 is a plan view of a cross beam hanger connection plate of the present utility model;

FIG. 22 is an elevation view of a cross beam hanger connection plate of the present utility model;

FIG. 23 is a front elevational view of an anchored steel pipe pile of the present utility model;

FIG. 24 is a side elevational view of an anchored steel pipe pile of the present utility model;

FIG. 25 is a plan view of an anchored steel pipe pile of the present utility model;

FIG. 26 is a plan view of a construction of a suspension bracket structure of the present utility model;

FIG. 27 is a construction elevation of a suspension cable support structure of the present utility model;

FIG. 28 is an elevation view of an insert construction cable of the present utility model;

fig. 29 is a plan view of an insert type construction cable post and cross beam of the present utility model.

The marks in the drawings are: 1-photovoltaic module, 11-photovoltaic module, 12-upper chord, 13-first lower chord, 14-second lower chord, 131-first closure plate, 141-first closure plate, 15-upper diagonal, 16-lower diagonal, 17-vertical diagonal, 2-cord structure, 21-third connection plate, 22-cord length adjustment section, 23-stay cord, 3-standoff post, 31-end steel plate, 4-cross beam, 41-dowel, 42-binaural connection plate, 5-anchor structure, 51-pull bar, 52-anchor post, 53-wing plate, 54-fifth connection plate, 6-block cord connection structure, 61-plate, 62-buckle, 63-first connection member, 64-block cord automatic locking mechanism, 641-floor 642-double guide plates, 643-single guide plates, 644-lock tongue, 645-rotating shaft, 646-spring, 647-baffle, 7-inter-module connection structure, 71-lower horizontal strut, 72-second connector, 73-first connector plate, 74-vertical diagonal strut, 75-third connector, 76-second connector plate, 8-pile cable connection structure, 81-lower circular plate, 82-upper circular plate, 83-inner cylinder, 84-outer cylinder, 85-fourth connector plate, 86-construction cable connection bolt, 9-construction cable system, 91-construction cable, 92-electric hoist, 93-construction cable stand, 931-steel stand, 932-support circular plate, 933-rubber gasket, 934-stiffening rib, 935-beam connection lug plate, 94-construction cable beam, 941-construction cable connection lug plate and 95-hanging part.

Detailed Description

The utility model is further illustrated by the following figures and examples, which are not intended to be limiting.

In order to make the purposes, technical schemes and advantages of the utility model more clear, an offshore photovoltaic power generation field embodiment with a water depth of 4m and a scale of 0.18MW and using a suspension bracket structure is listed below, and the technical scheme of the utility model is clearly and completely described with reference to the accompanying drawings. In this embodiment, 7 photovoltaic panels are placed on each photovoltaic module 1, 12 photovoltaic modules are placed on each span structure in the longitudinal direction, two span structures are longitudinally arranged, and two rows of photovoltaic arrays are transversely arranged. It is easy to understand that the number of photovoltaic panels placed on each photovoltaic module 11 may be different, the number of photovoltaic module placed on each span structure may be different, the number of spans of the longitudinal cable structure may be different, and the number of photovoltaic arrays transversely arranged may be different, and other embodiments composed of different numbers of photovoltaic panels, different numbers of photovoltaic module, different spans and different columns are all within the scope of the present utility model. The longitudinal direction of the suspension cable support structure is the arrangement direction along the cable structure 2, and the transverse direction is the direction parallel to the sea level and perpendicular to the arrangement direction of the cable structure 2.

As shown in fig. 1 to 25, the present embodiment provides a set of suspension cable support structure for offshore photovoltaic power generation, which ensures the reliability of the structure while reducing the amount of steel material used, and enables the photovoltaic module 11 to generate power at an optimum lighting angle.

Specifically, the suspension cable support structure comprises cable structures 2 which are positioned above the sea level and are arranged in parallel with each other, and support piles 3 which are anchored with the seabed mud surface; two ends of the cable structure 2 are respectively connected to the support piles 3 at two sides, and the cable structure 2 is connected with the photovoltaic assembly module 1; a cross beam 4 is connected between the support piles 3 at the two lateral sides; the photovoltaic module 1 comprises a photovoltaic module 11 and a triangular truss module structure, wherein the triangular truss module structure is connected between the cable structures 2 on the adjacent sides in the transverse direction, the photovoltaic module 11 is paved on an inclined truss surface of which the triangular truss module structure forms an illumination dip angle, and the inclined truss surface is arranged along the longitudinal direction of the cable structures 2; the photovoltaic module 11 is in a uniform illumination angle through adjusting the illumination inclination angle of the inclined truss surface of the triangular truss module structure; the adjacent triangular truss module structures are reserved with shielding prevention intervals in the longitudinal direction, and the shielding prevention intervals are adjusted according to the illumination inclination angles matched with the photovoltaic modules 11; the transversely adjacent triangular truss module structures are connected through the same rope structure 2.

In the embodiment, the cable structure 2 is placed in the north-south direction, the photovoltaic module 1 is placed in the east-west direction, and the inclined plane of the photovoltaic module 1 is inclined in the south direction; the photovoltaic module 11 forms a certain included angle with the horizontal plane, the size of the included angle can be calculated by the optimal inclination angle method of the existing photovoltaic power generation, and the solar energy can be effectively absorbed; the inclination direction of the photovoltaic module 11 is always southward, because the cable structure 2 has vertical sagging, a certain included angle exists between the cable structure 2 and the horizontal plane, and the included angle between the cable structure 2 and the horizontal plane is different at the cable end, in the cable and at other parts of the cable, so that the angle of the photovoltaic module 1 can be adjusted according to the different angles of the cable structure 2, so that the inclination angle of the photovoltaic module 11 is always the same, and the maximum solar energy utilization efficiency is achieved; a certain shielding distance is reserved between the two photovoltaic assembly modules 1 in the north-south direction, and the shielding distance can be calculated by using the existing shielding distance method of photovoltaic power generation.

As shown in fig. 3-5, the delta truss module structure includes an upper chord 12, first and second lower chords 13 and 14, and a link structure; the upper chord 12, the first lower chord 13 and the second lower chord 14 are laid in parallel in the transverse direction and perpendicular to the cable structure 2 while forming three ends of a triangular truss module structure; the connecting rod structure connects the upper chord 12, the first lower chord 13 and the second lower chord 14, and encloses the two transverse ends of the triangular truss module structure; the first lower chord 13 or the second lower chord 14 is provided with extensions at both ends so that laterally adjacent delta truss module structures may be connected in a staggered manner. The triangular truss module structure is preferably a triangular steel truss module structure. Aiming at the traditional offshore suspension cable photovoltaic, the module structure of the photovoltaic module adopts a solid-web steel structure, the large-span template structure has the defects of large steel consumption and large deformation, and the triangular truss module structure of the embodiment can effectively reduce the steel consumption and can also form a block type frame part through which air supply passes to further improve the ventilation performance, so that the module structure can bear larger sea wind load.

The connecting rod structure comprises an upper inclined rod 15, a lower inclined rod 16 and a vertical inclined rod 17; the upper chord member 12 is connected with the first lower chord member 13 by the upper diagonal member 15, the first lower chord member 13 is connected with the second lower chord member 14 by the lower diagonal member 16, the upper chord member 12 is connected with the second lower chord member 14 by the vertical diagonal member 17, and three plane trusses are formed by the upper diagonal member 15, the lower diagonal member 16 and the vertical diagonal member 17, so that a stable triangular truss structure is formed. The upper inclined rod 15, the lower inclined rod 16 and the vertical inclined rod 17 are respectively arranged at the middle parts of the triangular truss module structure in an end point cross connection mode, and the two ends of the triangular truss module structure are connected in a triangular mode, so that the purpose that the two ends of the triangular truss module structure are stable is achieved.

The upper chord member 12, the first lower chord member 13 and the second lower chord member 14 are all round steel pipes, the sealing characteristic of the round steel pipes is more beneficial to the corrosion resistance of the structure, and the welding connection between the rod pieces can be conveniently realized; the upper chord 12, the first lower chord 13, the second lower chord 14, the upper diagonal 15, the lower diagonal 16 and the vertical diagonal 17 are all welded, and an anti-corrosion coating is sprayed after welding so as to realize the integral anti-corrosion of the module structure; both ends of the first lower chord member 13 and the second lower chord member 14 of the photovoltaic module 1 are connected with the cable structures 2 at both lateral sides through the adjustable block cable connecting structure 6.

As shown in fig. 3-5, the included angle between the inclined plane and the plane of the triangular truss naturally forms an inclination angle, and the inclination angle is used for naturally forming the inclination angle of the photovoltaic module 11; and the inclination angle of the triangular truss module structure can be adjusted by adjusting the length of the vertical inclined rod 17, so that the inclination angles of all the photovoltaic modules 11 can be always in the same angle state.

As shown in fig. 6-8, the two ends of the first lower chord member 13 and the second lower chord member 14 are provided with adjustable block cable connecting structures 6, and the adjustable block cable connecting structures 6 comprise a flat plate 61, a buckle 62 and a first connecting piece 63; the flat plate 61 is arranged between the first lower chord 13 or the second lower chord 14 and the cable structure 2; the buckle 62 and the first connecting piece 63 are arranged in the upper and lower directions of the flat plate 61 in a staggered manner, the buckle 62 is connected with the cable structure 2, and the first connecting piece 63 is connected with the first lower chord 13 or the second lower chord 14 so as to prevent the adjustable block cable connecting structure 6 from slipping.

In this embodiment, the buckle 62 and the first connecting piece 63 respectively adopt a U-shaped buckle and a hoop, the buckle 62 is disposed on the flat plate 61, two U-shaped buckles are generally disposed along the direction of the cable structure 2 for fixing the cable structure 2, and the first connecting piece 63 is generally disposed along the direction of the lower chord member for fixing the first lower chord member 13 and the second lower chord member 14. The ends of the first lower chord member 13 and the second lower chord member 14 are respectively provided with a first sealing plate 131 and a second sealing plate 141 to prevent the chord member from slipping, and the sealing plates are also used for sealing the chord member to avoid corrosion of the interior of the chord member; because the first bottom chord 13 and the second bottom chord 14 are round tubes, the position of the first connecting piece 63 can be moved left and right along the length direction of the first bottom chord 13 and the second bottom chord 14, that is, can be adjusted in the longitudinal direction of the cable structure 2, so that the position of the block cable connecting structure 6 on the first bottom chord 13 and the second bottom chord 14 can be adjusted, and the adjustment can enable the block cable connecting structure 6 to adapt to the position error of the cable structure 2 caused by piling error. The problems of high construction precision requirement on pile foundations, high construction difficulty and high cost of the traditional marine suspension cable photovoltaic are solved through the block cable connecting structure 6, and the module is connected with the cable connecting part through bolts.

As shown in fig. 9-10, the adjustable block cable connecting structure 6 further includes a block cable automatic locking mechanism 64 disposed on the flat plate 61 and connected with the cable structure 2, and the block cable automatic locking mechanism 64 includes a concave portion standing on the flat plate 61 and a rotatable limit lock tongue 644; a shallow groove for the rope structure 2 to pass through is formed in the concave part; the lock tongue 644 is connected in the concave part, and the opposite rope structure 2 is in a rope locking state in the upward moving process of the triangular truss module structure. Therefore, the problems of complexity, long time and high risk caused by the fact that the module is fixed by adopting the mounting bolts can be effectively solved.

In the present embodiment, the concave portion includes a bottom plate 641, a double guide plate 642, and a single guide plate 643; the bottom plate 641 is arranged at the bottom and connected with the top of the flat plate 61, and the block rope automatic locking mechanism 64 is welded and fixed with the block rope connecting structure 6 through the bottom plate 641; the double guide plates 642 and the single guide plates 643 are arranged on the bottom plate 641 and are respectively positioned at two sides of the cable structure 2, a space for the lock tongue 644 to rotate is formed in the double guide plates 642, a certain interval is reserved between the double guide plates 642 and the single guide plates 643, so that a shallow groove is formed, the width of the shallow groove is slightly larger than the diameter of the cable structure 2, the cable structure 2 is guided into the shallow groove during installation, and the double guide plates 642 and the single guide plates 643 form a flaring part at the top of the shallow groove to smoothly guide the cable structure 2 into the shallow groove;

the lock tongue 644 is fixed on the double guide plates 642 through the rotation shaft 645 and can rotate around the rotation shaft 645, the double guide plates 642 are provided with baffle plates 647 at the ends far away from the lock tongue 644, springs 646 are connected between the lock tongue 644 and the baffle plates 647, and the springs 646 push the lock tongue 644 against the single guide plates 643 under the action of elastic force of the springs 646; when the cable structure 2 enters the shallow groove along the guiding action of the double guide plates 642 and the single guide plates 643, the spring 646 is compressed by extrusion, and the lock tongue 644 is retracted, so that the cable structure 2 enters the shallow groove; when the cable structure 2 completely enters the shallow groove, the spring force of the spring 646 is used for recovering, the lock tongue 644 is propped against the single guide plate 643 again, and the cable structure 2 can not be separated from the shallow groove any more, so that the photovoltaic assembly module 1 is temporarily fixed on the cable structure 2.

As shown in fig. 11-14, the inter-module connection structures 7 are rigidly connected between laterally adjacent triangular truss module structures; the inter-module connecting structure 7 comprises a horizontal connecting structure and a vertical connecting structure which can carry out error debugging in a plurality of directions, and the horizontal connecting structure and the vertical connecting structure are connected with an upper inclined rod 15, a lower inclined rod 16 and a vertical inclined rod 17 of a part with triangular two ends of the triangular truss module structure; as shown in fig. 14, the horizontal connection structure is provided with a first connection plate 73 and a second connection piece 72 on the connecting rod structures at two sides respectively, and a fixed point type point location and an adjustable point location which are matched with each other are formed on the lower diagonal rods 16 at two sides respectively through the first connection plate 73 and the second connection piece 72; a lower horizontal brace 71 is connected between the first connecting plate 73 and the second connecting piece 72; as shown in fig. 13, the vertical connection structure is provided with a second connection plate 76 and a third connection piece 75 on the vertical diagonal rods 17 on two sides respectively, and mutually matched fixed point type points and adjustable point type points are formed on the connection rod structures on two sides respectively through the second connection plate 76 and the third connection piece 75; a vertical diagonal brace 74 is connected between the second connection plate 76 and the third connection member 75.

In this embodiment, the second connecting piece 72 and the third connecting piece 75 are all hoops, so that the positions of the second connecting piece 72 and the third connecting piece 75 on the lower diagonal rod 16 and the vertical diagonal rod 17 are movable due to the hoops, so that debugging can be performed in multiple directions, and installation errors adapting to the two-side photovoltaic assembly modules 1 can be formed.

15-20, pile cable connecting structures 8 connected with cable structures 2 are arranged at pile tops of support piles 3, and the pile cable connecting structures 8 comprise inner fixed connecting parts connected with the support piles 3 and outer adjusting connecting parts connected with the cable structures 2; an inner cylinder 83 with a middle part is arranged on the inner fixed connecting part, a lower circular plate 81 and an upper circular plate 82 which are respectively connected with two end parts of the inner cylinder 83, and the lower circular plate 81 is connected and arranged on the pile top of the bracket pile 3; an outer cylinder 84 sleeved outside the inner cylinder 83 is arranged on the outer adjusting connecting part; the two end parts of the rope structure 2 are provided with a third connecting plate 21, the outer cylinder 84 is provided with a fourth connecting plate 85 connected with the third connecting plate 21, and the rotation connection of the outer cylinder 84 and the inner cylinder 83 is matched to form a self-adjusting limiting state of the rope structure 2. Meanwhile, the defects that the traditional offshore suspension cable photovoltaic structure is unreliable in the structural form of hoop connection or sleeve type connection, the on-site drilling construction process is complex, the sleeve type connection is unreliable when being subjected to up-pulling, and the construction process is complex by using structural adhesive can be overcome.

In the embodiment, the lower circular plate 81 is connected with the pile end steel plate 31 at the top of the support pile 3 through bolts; the inner diameter of the outer cylinder 84 is slightly larger than the outer diameter of the inner cylinder 83, so that the outer cylinder 84 can rotate around the inner cylinder 83, the outer cylinder 84 can be automatically rotated to align the direction of the cable structure 2 due to the cable tension after the cable is hung without accurately aligning the direction during the installation of the cable connecting structure 8 and the piling direction during piling; four single-lug fourth connecting plates 85 are circumferentially distributed at equal angles on the outer side of the outer cylinder 84, wherein two fourth connecting plates 85 along the cable direction are used for hanging the cable structure 2, and two single-lug fourth connecting plates 85 perpendicular to the cable direction are used for installing the cross beam 4; a construction cable attachment bolt 86 is provided on the upper circular plate 82 for attaching a construction cable post 91.

As shown in fig. 19-22, the cross beam 4 is also connected with the bracket pile 3 through an ear plate; specifically, a binaural connecting plate 42 is provided at the end of the cross beam 4, and the binaural connecting plate 42 is connected to a monaural hanging plate 85 by a pin 41.

In this embodiment, the third connecting plate 21 adopts a double-ear hanging plate, while the fourth connecting plate 85 adopts a single-ear hanging plate matched with the double-ear hanging plate, and the two hanging plates can be connected through pins to realize the hanging of the cable structure 2 on the pile cable connecting structure 8.

As shown in fig. 15, the cable structure 2 is provided with a cable length adjusting section 22 at both ends thereof near the third connecting plate 21 side for adjusting the length of the cable structure 2 to accommodate the installation error of the bracket piles 3 at both sides. In this embodiment, the installation method of the cable structure 2 is that after piling of the bracket piles 3 on both sides is completed, the pile cable connection structure 8 is installed on the top of the bracket piles 3, and then both ends of the cable structure 2 are hung on the single-lug hanging plate 85 and are connected by pins, so that prestress can not be applied to the cable structure 2; the connecting method has the advantages that the on-site installation is simple, the two ends are directly connected in a hanging way, the prestress is not required to be applied, the connection is reliable, and the ear plate connecting structure has better corrosion resistance than the prestress anchoring end.

As shown in fig. 2 and 23-25, the suspension cable support structure comprises an anchoring structure 5 arranged at both ends thereof and matched with the support piles 3, the anchoring structure 5 is arranged under the seabed mud surface in an anchoring manner, and comprises a pull rod 51, an anchoring pile 52, a wing plate 53 and a fifth connecting plate 54; wings 53 are provided on both sides of the anchor pile 52 in opposite directions; the fifth connection plate 54 is provided at the upper portion of the anchor pile 52; one end of the pull rod 51 is connected with a fifth connecting plate 54, the other end extends out of the mud surface and is connected with the pile top of the support pile 3, and a stay cable 23 is connected between the pile top of the support pile 3 and the pull rod 51. The construction method is characterized in that the construction method adopts a sheet pile type anchoring structure, wherein the construction sequence is that pile is firstly piled, then prefabricated plates are sleeved outside piles, and the prefabricated plates are sunk in a hydraulic sinking mode, so that the problems of excessive construction procedures, excessive field operation links, excessive anchoring points and adverse bending resistance of pile bodies are caused.

In this embodiment, the anchoring structure 5 is disposed outside the support pile 3 and at the outermost end of the cable structure 2, and is used for bearing the tensile force of the cable structure 2; the cable structure 2 transmits tension to the anchoring structure 5 via the stay cable 23 and the tension rod 51. The anchor piles 52 are generally steel pipe piles and are generally sunk below the mud surface; the wing plates 53 on the two sides are provided with a pair and are connected in a Y-shaped structure on the cross section, so that the horizontal resistance of the pile is improved, and the bottom of the best intersected wing plate 53 is arranged in an upward inclined manner, so that the pile can enter the mud surface more quickly; the fifth connection plate 54 is disposed at a distance below the pile top, and the fifth connection plate 54 is generally 3D (D refers to the outer diameter of the anchor pile 52) from the pile top; the pull rod 51 is connected with the fifth connecting plate 54 through an ear plate. The anchoring structure has the advantages that the acting point of the pulling force is positioned below the mud surface, the counterforces of the upper soil and the lower soil of the acting point of the pulling force are basically balanced, only horizontal force acts on the anchoring pile 52, and the bending moment acts less; the construction method of the anchoring structure comprises the steps of connecting the pull rod 5 with the hanging plate 54, forming an integral pile sinking by the pull rod 51, the anchoring pile 52, the wing plates 53 and the fifth connecting plate 54, and connecting the stay cable 23 with the pull rod 51 to form the integrally stressed anchoring structure.

26-27, the present embodiment provides a construction cable system 9 adapted to be coupled to a suspension cable support structure by hooking a photovoltaic module 1, where the construction cable system 9 surrounds adjacent support piles 3 in a quadrilateral shape, and the placement positions of the construction cable system 9 can be replaced to be cyclically matched with support piles 3 in different positions, so that the construction cable system 9 can be reused in the construction process; specifically, the pile tops of the support piles 3 distributed around the construction unit area are matched with the pile cable connecting structures 8, and meanwhile, the construction cable system 9 is in an integrated replacement state in the construction unit area, so that the photovoltaic module 1 on the cable structure 2 is hoisted and installed; the construction cable system 9 comprises a construction cable 91, an electric hoist 92, a construction cable upright 93 and a construction cable beam 94; the inner cylinder 83 is internally provided with a through hole for the insertion fit of the construction cable upright post 93; the upper part of the construction cable upright post 93 is provided with a hanging part 95, the construction cable cross beam 94 is connected between the construction cable upright posts 93 at two sides in the transverse direction, and the construction cable 91 is connected between the construction cable upright posts 93 at two sides in the longitudinal direction; the construction cable 91 may be connected to the hitching part 95 in a staggered manner with respect to the construction cable beam 94, or the construction cable 91 may be connected to the construction cable beam 94; the electric hoist 92 is hung on the construction cable 91, and is in a hoisting state for the photovoltaic module 1.

In this embodiment, the construction cable post 93 includes a steel post 931, a support circular plate 932, a rubber washer 933, and a stiffening rib 934; the steel upright post 931 is inserted into the hanging part of the pile rope connecting structure 8 and is connected with the pile rope connecting structure 8 through bolts, the upper end and the lower end of the steel upright post 931 are separated by the supporting circular plate 932, the upper end and the lower end of the steel upright post 931 are arranged on the outer surface of the steel upright post 931, and the rubber gasket 933 is sleeved on the steel upright post 931 and can be matched with the inner wall of the inner cylinder 83; the stiffening ribs 934 are annularly distributed and connected between the top of the supporting circular plate 932 and the outer surface of the steel upright post 931; the beam connecting lug plate 935 is connected with the construction cable beam 94 by bolts; a plurality of construction cable connection lugs 941 are provided on the construction cable beam 94 for hanging the construction cable 91.

Referring to fig. 1 to 29, when the suspension cable support structure of the offshore photovoltaic power station is installed in land and offshore construction, the specific construction steps are as follows:

s1: the required photovoltaic assembly module 1 is prefabricated in a land factory, equipment installation and cable connection in the module are finished in land, and corrosion prevention treatment is finished;

s2: determining a target construction sea area, and transferring the required photovoltaic assembly module 1, the required cable structure 2, the required bracket piles 3, the required cross beams 4 and the required anchoring structures 5 to the construction sea area by using a revetment;

s3: the offshore pile sinking construction of the support pile 3 is completed to a design elevation by using offshore pile driving equipment, and the offshore pile sinking construction is arranged, installed and connected to the support pile 3; firstly, arranging and distributing support piles 3 on the sea, and installing a cross beam 4 on a pile cable connecting structure 8 at the top of the support piles 3; secondly, the cable structure 2 is mounted on a pile cable connection structure 8 at the top of the support pile 3 and is directly connected by an ear plate type connection method, so that the cable structure 2 does not exert prestress; and installing the anchor structures 5 to the bracket piles 3 at the two longitudinal ends far away from the center side, arranging the anchor structures 5 in parallel on the longitudinally connected cable structures 2, sinking the anchor piles 52 to the designed elevation, and connecting the pile cable connecting structures 8 with the pull rods 51 by the stay cables 23;

s4: installing construction cable uprights 93 to the tops of the pile cable connecting structures 8 and connecting the construction cable uprights by bolts, arranging the construction cable systems 9 in a construction area surrounded by the surrounding support piles 3 in a single piece so that construction cable cross beams 94 are installed between the transversely adjacent construction cable uprights 93, longitudinally hanging the construction cable 91 between the two construction cable uprights 93 or the construction cable cross beams 94, and then installing electric hoist 92 on the construction cable 91, thereby completing the integral replaceable arrangement of the construction cable systems 9 between the adjacent support piles 3;

s5: the photovoltaic module 1 is transported to the site of a construction sea area by a revetment and positioned below the cable structure 2, the photovoltaic module 1 is lifted up and slowly lifted to the position of the cable structure 2 by an electric hoist 92, and the cable structure 2 is guided into a shallow groove by a block cable automatic locking mechanism 64 and is automatically fastened, so that the photovoltaic module 1 is temporarily fixed on the cable structure 2;

s6: the first connecting piece 63 on the adjustable block cable connecting structure 6 is connected with the first lower chord 13 and the second lower chord 14 and is connected with the cable structure 2 through the buckle 62 so as to complete the integral connection of the photovoltaic assembly module 1 and the cable structure 2;

s7: and (4) repeating the steps of S4-S6 to finish the installation of the photovoltaic assembly modules 1 in the monolithic area, integrally adjusting the position of the construction cable system 9 in the area between the support piles 3, gradually installing all the photovoltaic assembly modules 1 on the cable structure 2, finishing the whole installation of the suspension cable support structure of the offshore photovoltaic power station, dismantling the construction cable system 9 after the installation is finished, and withdrawing the construction ship from the operation sea area.

The above embodiment is only one preferred technical solution of the present utility model, and it should be understood by those skilled in the art that modifications and substitutions can be made to the technical solution or parameters in the embodiment without departing from the principle and essence of the present utility model, and all the modifications and substitutions are covered in the protection scope of the present utility model.

Claims (9)

1. A suspension cable support structure of an offshore photovoltaic power station, which comprises cable structures (2) which are positioned above the sea level and are arranged in parallel with each other, and support piles (3) which are anchored with the seabed mud surface; two ends of the cable structure (2) are respectively connected to the support piles (3) at two sides, and the cable structure (2) is connected with a photovoltaic assembly module (1); the method is characterized in that:

a cross beam (4) is connected between the support piles (3) at the two lateral sides;

the photovoltaic assembly module (1) comprises a photovoltaic assembly (11) and a triangular truss module structure, wherein the triangular truss module structure is connected between the cable structures (2) on the adjacent sides in the transverse direction, the photovoltaic assembly (11) is paved on an inclined truss surface with an illumination inclination angle formed by the triangular truss module structure, and the inclined truss surface is arranged along the longitudinal direction paved by the cable structures (2);

the adjacent triangular truss module structures are reserved with shielding prevention intervals in the longitudinal direction, and the shielding prevention intervals are adjusted according to the illumination dip angles matched with the photovoltaic modules (11);

and the transversely adjacent triangular truss module structures are connected through the same rope structure (2).

2. A catenary support structure of an offshore photovoltaic power plant according to claim 1, wherein: the triangular truss module structure comprises an upper chord (12), a first lower chord (13) and a second lower chord (14), and a connecting rod structure;

the upper chord (12), the first lower chord (13) and the second lower chord (14) are laid in parallel in the transverse direction and perpendicular to the cable structure (2) while forming three ends of the triangular truss module structure;

the connecting rod structure connects the upper chord (12), the first lower chord (13) and the second lower chord (14);

extension parts are arranged at two ends of the first lower chord member (13) or the second lower chord member (14) so that the transversely adjacent triangular truss module structures can be connected in a staggered manner.

3. A catenary support structure of an offshore photovoltaic power plant according to claim 2, wherein: two ends of the first lower chord member (13) and the second lower chord member (14) are provided with adjustable block cable connecting structures (6), and the adjustable block cable connecting structures (6) comprise a flat plate (61), a buckle (62) and a first connecting piece (63);

the flat plate (61) is arranged between the first lower chord (13) or the second lower chord (14) and the cable structure (2);

the buckles (62) and the first connecting piece (63) are arranged in the two directions of the flat plate (61) in a staggered mode, the buckles (62) are connected with the cable structure (2), and the first connecting piece (63) is connected with the first lower chord (13) or the second lower chord (14) so as to prevent the adjustable block cable connecting structure (6) from slipping.

4. A catenary support structure of an offshore photovoltaic power plant according to claim 3, wherein: the adjustable block rope connecting structure (6) further comprises a block rope automatic locking mechanism (64) which is arranged on the flat plate (61) and connected with the rope structure (2), and the block rope automatic locking mechanism (64) comprises a concave part which is vertically arranged on the upper opening of the flat plate (61) and an upward opening and a rotatable limiting lock tongue (644);

a shallow groove for the rope structure (2) to pass through is formed in the concave part;

the lock tongue (644) is connected in the concave part and is in an upward rope locking state for the rope structure (2).

5. A catenary support structure of an offshore photovoltaic power plant according to claim 2, wherein: an inter-module connecting structure (7) is rigidly connected between the transversely adjacent triangular truss module structures; the inter-module connecting structure (7) comprises a horizontal connecting structure and a vertical connecting structure which can carry out error debugging in a plurality of directions;

the horizontal connecting structure is provided with a first connecting plate (73) and a second connecting piece (72) on the connecting rod structures at two sides respectively, and mutually matched fixed point type point positions and adjustable point type point positions are formed on the connecting rod structures at two sides respectively through the first connecting plate (73) and the second connecting piece (72); a lower horizontal brace (71) is connected between the first connecting plate (73) and the second connecting piece (72);

the vertical connecting structure is provided with a second connecting plate (76) and a third connecting piece (75) on the connecting rod structures at two sides respectively, and mutually matched fixed point type point positions and adjustable point type point positions are formed on the connecting rod structures at two sides respectively through the second connecting plate (76) and the third connecting piece (75); a vertical diagonal brace (74) is connected between the second connecting plate (76) and the third connecting piece (75).

6. A catenary support structure of an offshore photovoltaic power plant according to claim 1, wherein: the pile top of the support pile (3) is provided with a pile rope connecting structure (8) connected with the rope structure (2), and the pile rope connecting structure (8) comprises an inner fixed connecting part connected with the support pile (3) and an outer adjusting connecting part connected with the rope structure (2);

an inner cylinder (83) of the middle part is arranged on the inner fixed connecting part, and a lower circular plate (81) and an upper circular plate (82) which are respectively connected with two end parts of the inner cylinder (83), wherein the lower circular plate (81) is connected with the pile top of the bracket pile (3);

an outer cylinder (84) sleeved outside the inner cylinder (83) is arranged on the outer adjusting connecting part; the rope structure is characterized in that the third connecting plates (21) are arranged at the end parts of the two ends of the rope structure (2), the fourth connecting plates (85) connected with the third connecting plates (21) are arranged on the outer cylinder (84), and the self-adjusting limiting state of the rope structure (2) is formed through the rotation connection cooperation of the outer cylinder (84) and the inner cylinder (83).

7. The catenary support structure of an offshore photovoltaic power plant of claim 6, wherein: the cable structure (2) is provided with a cable length adjusting section (22) at two ends thereof near the side of the third connecting plate (21).

8. A catenary support structure of an offshore photovoltaic power plant according to claim 1, wherein: the suspension cable support structure comprises an anchoring structure (5) which is arranged at two ends of the suspension cable support structure and matched with the support piles (3), the anchoring structure (5) is arranged under the seabed mud surface in an anchoring manner, and the suspension cable support structure comprises a pull rod (51), an anchoring pile (52), a wing plate (53) and a fifth connecting plate (54);

the wing plates (53) are arranged on the outer surface of the anchoring pile (52);

the fifth connecting plate (54) is arranged at the upper part of the anchoring pile (52);

one end of the pull rod (51) is connected with the fifth connecting plate (54), the other end of the pull rod extends out of the mud surface and is connected with the pile top of the support pile (3), and a stay cable (23) is connected between the pile top of the support pile (3) and the pull rod (51).

9. The catenary support structure of an offshore photovoltaic power plant of claim 6, wherein: the suspension cable support structure further comprises a construction cable system (9) which is connected and matched with the photovoltaic module (1), the construction cable system (9) is distributed on the pile tops of the support piles (3) around a construction unit area and is matched with the pile cable connecting structure (8), and meanwhile the construction cable system (9) is in an integrated replacement state in the construction unit area and is used for hoisting and installing the photovoltaic module (1) on the cable structure (2);

the construction cable system (9) comprises a construction cable (91), an electric hoist (92), a construction cable column (93) and a construction cable beam (94);

a through hole for the insertion fit of the construction cable column (93) is formed in the inner cylinder (83);

the upper part of the construction cable upright post (93) is provided with a hanging part (95), the construction cable cross beam (94) is connected between the construction cable upright posts (93) at two sides in the transverse direction, and the construction cable (91) is connected between the construction cable upright posts (93) at two sides in the longitudinal direction; the construction cable (91) and the construction cable cross beam (94) can be connected to the hanging part (95) in a staggered way, or the construction cable (91) can be connected to the construction cable cross beam (94);

the electric hoist (92) is hung on the construction cable (91) and is in a hoisting state for the photovoltaic assembly module (1).

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