Connecting structure of offshore photovoltaic concrete buoyancy tank

Abstract

The invention relates to the technical field of offshore photovoltaic concrete buoyancy tanks, and discloses a connecting structure of an offshore photovoltaic concrete buoyancy tank, a longitudinal section steel module is assembled with a plurality of groups of transverse section steel modules with the same structure through connecting pieces, and the longitudinal section steel module comprises first H-shaped steel and second H-shaped steel which are arranged in parallel; reinforcing rods are welded and installed between the first H-shaped steel and the second H-shaped steel, anti-collision rubber blocks are assembled on the outer side walls of the first H-shaped steel and the second H-shaped steel in a bonding mode, the strength and rigidity of the joint are effectively enhanced, and meanwhile it is ensured that the overall structural strength of the joint meets the requirement through the strength of the H-shaped steel structure; the anti-collision rubber blocks can provide anti-collision protection for the H-shaped steel, the connecting pieces are flexible assemblies, buffering and energy dissipation are conducted on collision borne by the buoyancy tanks, certain mutual movement amount can be achieved between the buoyancy tanks so that the buoyancy tanks can better adapt to sea waves, force can be effectively reduced after buffering, and therefore concentrated stress is softened, dispersed and borne better.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of offshore photovoltaic concrete floating box, and particularly relates to a connecting structure of offshore photovoltaic concrete floating box. BACKGROUND

[0002] With the transformation of global energy structure to clean, offshore photovoltaic power generation technology develops rapidly due to its high space utilization and stable power generation efficiency. The reliability of the connecting node of the concrete floating box structure, as the core bearing unit of the offshore floating photovoltaic system, directly relates to the overall stability and durability of the system.

[0003] The traditional connecting node adopts a pure steel structure or a concrete rigid connection form, which has problems of insufficient corrosion resistance, stress concentration under dynamic load, weak collision buffering capacity and the like, and is difficult to adapt to long-term effects such as wave impact, salt spray corrosion and collision between floating bodies in complex marine environment. In particular, in extreme sea conditions, the existing node is prone to structural failure due to fatigue damage or stress overrun, which restricts the large-scale application of offshore floating photovoltaic power stations.

[0004] Therefore, the present application provides a connecting structure of offshore photovoltaic concrete floating box to solve the above problems. SUMMARY

[0005] The present application aims to provide a connecting structure of offshore photovoltaic concrete floating box to solve the problems raised in the background.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a connecting structure of offshore photovoltaic concrete floating box, comprising a longitudinal steel module, a plurality of groups of transverse steel modules identical in structure are assembled on the longitudinal steel module through connecting pieces, the longitudinal steel module comprises first and second H-shaped steels arranged in parallel, a reinforcing rod is welded and installed between the first and second H-shaped steels, and the transverse steel module is a third H-shaped steel. The top and bottom of the first and second H-shaped steels are integrally formed with reinforcing rib plates, and anti-collision rubber blocks are bonded and assembled on the outer side walls of the first and second H-shaped steels. The reinforcing rod comprises vertical web members longitudinally welded between the upper and lower groups of reinforcing rib plates, and inclined web members fixedly welded between adjacent two groups of vertical web members. The connecting pieces are installed on the third H-shaped steel to complete the fixed assembly of the third H-shaped steel on the top of the second H-shaped steel.

[0007] Preferably, the anti-collision rubber blocks are bonded and assembled on the outer side walls of the first and second H-shaped steels, the outer side walls of the anti-collision rubber blocks on the lower side are uniformly fixedly installed with floating air bags, and adjacent two groups of the floating air bags are communicated through air guide pipes.

[0008] Preferably, the connecting piece is arranged as a pre-buried screw embedded on the reinforcing rib plate on the top of the second H-shaped steel.

[0009] Preferably, the connecting piece is arranged as an elongated fixing bolt, the second H-shaped steel is provided with an installation slot penetrating up and down and corresponding to the third H-shaped steel, and the third H-shaped steel is provided with a threaded slot, the elongated fixing bolt is fixed and installed by penetrating the threaded slot and the installation slot from bottom to top and being fixed by a locking nut arranged at the end.

[0010] Preferably, the connecting piece is arranged as a flexible assembly, the second H-shaped steel is provided with a receiving channel penetrating up and down and corresponding to the third H-shaped steel, the third H-shaped steel is provided with a threaded channel, the flexible assembly comprises a flexible sleeve assembled in the receiving channel and the threaded channel, a connecting bolt is inserted and assembled in the two groups of flexible sleeves, the connecting bolt extends downward out of the second H-shaped steel and is provided with a fastening nut, and a flexible rubber gasket is assembled between the fastening nut and the second H-shaped steel.

[0011] Preferably, each group of the third H-shaped steel is fixedly connected with the second H-shaped steel through two groups of connecting assemblies, each group of the connecting assembly comprises four groups of flexible assemblies, and each group of the connecting assembly further comprises an anti-disengagement assembly assembled on the four groups of flexible assemblies, and the anti-disengagement assembly is assembled at the bottom of the second H-shaped steel.

[0012] Preferably, the anti-disengagement assembly comprises a locking piece threadedly assembled at the bottom end of the connecting bolt, a protective air bag is suspended between the four groups of locking pieces, and an elastic rope is connected between the protective air bag and each group of locking pieces.

[0013] Preferably, the top of the second H-shaped steel is fixedly provided with a buffer rubber pad arranged on both sides of the reinforcing rib plate, and the buffer rubber pad is adhesively assembled at the bottom of the third H-shaped steel.

[0014] Preferably, a tension sensor is fixedly assembled on each group of the elastic rope, and the anti-disengagement assembly further comprises a data processor, and the data processor is internally provided with a wireless transceiver module.

[0015] Technical effects and advantages of the present application: 1. The first H-shaped steel, the reinforcing rod, the second H-shaped steel and the third H-shaped steel are combined into a connecting node in the present application, the advantages of each structure are fully utilized, the strength and rigidity of the node are effectively enhanced, the strength of the H-shaped steel structure is utilized to ensure that the overall structural strength of the node meets the requirements, the anti-collision rubber block can provide anti-collision protection for the floating box, the impact resistance and corrosion resistance of the node can be improved, the reinforcing rod is arranged between the first H-shaped steel and the second H-shaped steel to bear the vertical load of the node, and the overall rigidity of the node can be improved.

[0016] 2、The connecting piece in the application is optimized as a flexible assembly, realizing flexible connection between the second H-shaped steel and the third H-shaped steel, and when the floating box encounters sea wave impact, part of energy can be absorbed through the flexible connection mode of the flexible sleeve, reducing rigid collision, when the third H-shaped steel is impacted, the flexible sleeve is extruded under the action of the connecting bolt, so that the third H-shaped steel is inclined, and then the third H-shaped steel extrudes the buffer rubber pad on the inclined side, the buffer rubber pad provides support and protection to the inclined third H-shaped steel, and the flexible sleeve is supplemented to disperse stress, realizing buffer protection against sea wave impact. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the overall structure front view of the first embodiment of the application; Figure 2 It is the overall structure bottom view of the first embodiment of the application; Figure 3 It is the overall structure front view of the second embodiment of the application; Figure 4 It is the overall structure bottom view of the second embodiment of the application; Figure 5 It is the assembly structure front view of the second H-shaped steel and the third H-shaped steel of the third embodiment of the application; Figure 6 It is the assembly structure bottom view of the second H-shaped steel and the third H-shaped steel of the third embodiment of the application; Figure 7 It is the assembly structure schematic view of the flexible assembly and the anti-dropping assembly of the third embodiment of the application; Figure 8 It is the structure schematic view of the first H-shaped steel and the anti-collision rubber block of the first embodiment of the application; Figure 9 It is the application state structure schematic view of the first embodiment of the application.

[0018] In the figure: 1, first H-shaped steel; 2, reinforcing rod; 21, vertical web member; 22, inclined web member; 3, second H-shaped steel; 4, third H-shaped steel; 5, pre-buried screw; 6, anti-collision rubber block; 7, floating air bag; 8, air guide pipe; 9, lengthened fixing bolt; 10, flexible assembly; 101, flexible sleeve; 102, connecting bolt; 103, fastening nut; 11, anti-dropping assembly; 111, locking piece; 112, protective air bag; 113, elastic rope; 12, reinforcing rib plate; 13, buffer rubber pad; 14, floating box structure. DETAILED DESCRIPTION

[0019] With reference to the drawings and in light of the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the scope of the present application.

[0020] First embodiment: As shown in Figure 1 , Figure 2 , Figure 8 and Figure 9 , the present embodiment discloses a connecting structure of offshore photovoltaic concrete floating box, which is connected and installed between two adjacent groups of floating box structures 14 to complete the fixed installation of the floating box structure 14, and specifically comprises a longitudinal steel module, a plurality of groups of transverse steel modules with the same structure are assembled on the longitudinal steel module through connecting pieces. The connecting mode of each component of the present application is simple, easy to process, corrosion-resistant and fatigue-resistant, and can adapt to the complex environment of the sea surface.

[0021] Specifically, please refer to Figure 1 and Figure 2 , the longitudinal steel module comprises a first H-shaped steel 1 and a second H-shaped steel 3 arranged in parallel, and a reinforcing rod 2 is welded and installed between the first H-shaped steel 1 and the second H-shaped steel 3. The transverse steel module is a third H-shaped steel 4, which combines the first H-shaped steel 1, the reinforcing rod 2, the second H-shaped steel 3 and the third H-shaped steel 4 into a connecting joint, fully utilizes the respective advantages of each structure, effectively enhances the strength and rigidity of the joint, and utilizes the strength of the H-shaped steel structure to ensure that the overall structural strength of the connecting joint between the concrete floating boxes meets the requirements.

[0022] Please refer to Figure 1 and Figure 2 , the top and bottom of the first H-shaped steel 1 and the second H-shaped steel 3 are integrally formed with reinforcing rib plates 12, which enhance the support strength of the overall structure and avoid stress concentration. The outer side walls of the first H-shaped steel 1 and the second H-shaped steel 3 are bonded with anti-collision rubber blocks 6, which can provide anti-collision protection for the H-shaped steel and improve the impact resistance and corrosion resistance of the joint.

[0023] Please refer to Figure 1 and Figure 2 , the reinforcing rod 2 comprises vertical web members 21 longitudinally welded between the upper and lower two groups of reinforcing rib plates 12, and inclined web members 22 fixedly welded between the adjacent two groups of vertical web members 21. The inclined web members 22 and the vertical web members 21 are staggered, and the web member structure is arranged between the first H-shaped steel 1 and the second H-shaped steel 3 to bear the vertical load of the joint, thereby improving the overall rigidity of the joint.

[0024] Please refer to Figure 1The connecting piece is installed on the third H-shaped steel 4, the fixed assembly of the third H-shaped steel 4 on the top of the second H-shaped steel 3 is completed, the installation of the third H-shaped steel 4 between the second H-shaped steels 3 can be quickly completed, and the disassembly and assembly convenience can be greatly improved in actual application, and the later maintenance is facilitated.

[0025] It should be noted that Figure 1 and Figure 8 The outer side wall of the anti-collision rubber block 6 is bonded and assembled on the first H-shaped steel 1 and the second H-shaped steel 3, the outer side wall of the anti-collision rubber block 6 bonded and assembled on the first H-shaped steel 1 is uniformly fixed and installed with the floating air bag 7, and the adjacent two groups of floating air bags 7 are communicated through the air guide pipe 8. In actual application, the anti-collision rubber block 6 is arranged on both sides of the H-shaped steel, so that the anti-collision protection of the H-shaped steel can be realized, and the corrosion resistance of the H-shaped steel can be provided.

[0026] The connecting piece is provided as a pre-buried screw 5, the pre-buried screw 5 is pre-buried on the reinforcing rib plate 12 on the top of the second H-shaped steel 3, the pre-buried screw 5 is pre-set on the top of the second H-shaped steel 3 during the manufacturing of the second H-shaped steel 3, the mounting hole for the pre-buried screw 5 is arranged at the corresponding position of the third H-shaped steel 4, so that the positioning of the third H-shaped steel 4 can be quickly realized, then the third H-shaped steel 4 is installed on the pre-buried screw 5 through the installation nut, and the installation stability of the third H-shaped steel 4 on the second H-shaped steel 3 can be greatly improved.

[0027] Second embodiment: In order to further improve the connection stability of the third H-shaped steel 4 on the second H-shaped steel 3, and to avoid the breakage of the pre-buried screw 5 due to excessive stress concentration when the third H-shaped steel 4 is impacted, please refer to Figure 3 and Figure 4 The connecting piece is provided as a lengthened fixed bolt 9, the mounting slot penetrating up and down and corresponding to the third H-shaped steel 4 is formed on the second H-shaped steel 3, and the threaded slot is formed on the third H-shaped steel 4, the lengthened fixed bolt 9 is fixed and installed through the locking nut arranged at the end portion after penetrating through the threaded slot and the mounting slot from bottom to top, the lengthened fixed bolt 9 penetrates through the third H-shaped steel 4 on the second H-shaped steel 3, the reinforcing connection of the two can be completed, the overall penetration installation can be completed, the connecting force point of the third H-shaped steel 4 on the second H-shaped steel 3 can be increased, the connection area of the two can be increased, the connection stability of the two can be improved, and the problems of breakage of the connecting piece due to stress concentration and connection failure of the connecting piece can be avoided.

[0028] Third embodiment: Because the lengthened fixing bolt 9 is installed between the third H-shaped steel 4 and the second H-shaped steel 3, the connection between the two is hard connection, so when the two are impacted, stress concentration is easily caused on the lengthened fixing bolt 9, and fatigue failure is easily caused due to frequent stress after long-term use, which causes the lengthened fixing bolt 9 to be broken after fatigue, and there is a hidden danger of use safety, and once fatigue failure occurs, the actual situation of the connecting piece cannot be known in real time, and the H-shaped steel connection is easily failed due to fatigue failure, based on this, the connecting piece is optimized and improved, specifically: Please refer to Figure 5- Figure 7 , the connecting piece is set as a flexible assembly 10, which can slow down the impact of the third H-shaped steel 4 on the second H-shaped steel 3, because different pontoons will move and impact each other under the action of sea waves, the flexible assembly 10 changes the rigid connection to ductile connection and buffers and dissipates the impact energy, the instantaneous impact force is very large, and the force will be effectively reduced after buffering, and this connection method does not force the connection between the pontoon structures 14, so that the pontoon structures 14 can have a certain amount of mutual movement to better adapt to sea waves, compared with forced connection, the connection force will be much smaller, but the mutual movement will cause collision, so the anti-collision rubber block 6 is added, which can then soften and disperse the concentrated stress and better withstand the impact force of sea waves, specifically, the second H-shaped steel 3 is provided with an accommodation channel that penetrates upward and downward and corresponds to the third H-shaped steel 4, and the third H-shaped steel 4 is provided with a threaded channel, the flexible assembly 10 includes a flexible sleeve 101 assembled in the accommodation channel and the threaded channel, a connecting bolt 102 is inserted and assembled in the two groups of flexible sleeves 101, the connecting bolt 102 extends downward and is threadedly assembled with a fastening nut 103 on the second H-shaped steel 3, and a flexible rubber gasket is assembled between the fastening nut 103 and the second H-shaped steel 3, the flexible sleeve 101 is preassembled in the accommodation channel and the threaded channel, and then the connecting bolt 102 is inserted and assembled in the flexible sleeve 101, to complete the connection between the second H-shaped steel 3 and the third H-shaped steel 4, the fastening nut 103 is installed on the connecting bolt 102 to complete the flexible connection, and then in actual application, part of the energy can be absorbed through the flexible connection of the flexible sleeve 101 when the pontoon is impacted by sea waves, reducing rigid collision.

[0029] Please refer to Figure 5 and Figure 6The top of the second H-shaped steel 3 is fixedly assembled with the buffer rubber pad 13 arranged on both sides of the reinforcing rib plate 12, and the top of the buffer rubber pad 13 is adhesively assembled with the bottom of the third H-shaped steel 4. When the third H-shaped steel 4 is impacted, the flexible sleeve 101 is extruded under the action of the connecting bolt 102, so that the third H-shaped steel 4 is inclined, and then the third H-shaped steel 4 extrudes the buffer rubber pad 13 on the inclined side, thereby supporting and protecting the third H-shaped steel 4 in the inclined state through the buffer rubber pad 13, and the flexible sleeve 101 is used to disperse stress, thereby achieving the buffering protection against sea wave impact.

[0030] Each group of third H-shaped steels 4 is fixedly connected through two groups of connecting assemblies and the second H-shaped steel 3. Each group of connecting assemblies includes four groups of flexible assemblies 10, and each group of connecting assemblies further includes the anti-falling assembly 11 assembled on the four groups of flexible assemblies 10, and the anti-falling assembly 11 is assembled on the bottom of the second H-shaped steel 3. The flexible assembly 10 is arranged in multiple groups, thereby increasing the connecting points of the second H-shaped steel 3 and the third H-shaped steel 4, enhancing the connection stability, and the anti-falling assembly 11 is installed on each group of connecting assemblies, thereby enhancing the safety of the flexible assembly 10 during use, preventing the flexible assembly 10 from falling off the fastening nut 103 during long-term use, and providing safety protection for the connection of the connecting piece.

[0031] Please refer to Figure 6 and Figure 7 The anti-falling assembly 11 includes the locking piece 111 threadedly assembled at the bottom end of the connecting bolt 102, the protective air bag 112 is suspended between the four groups of locking pieces 111, and the elastic rope 113 is connected between the protective air bag 112 and each group of locking pieces 111. The locking piece 111 is installed at the bottom end of the connecting bolt 102 and is attached to the bottom of the fastening nut 103, so that the state of the fastening nut 103 can be detected through the locking piece 111, the protective air bag 112 can float in the water body, the elastic rope 113 is tensioned to the locking piece 111, and then the protective air bag 112 is pulled to the locking piece 111 through the elastic rope 113 when floating, thereby improving the anti-falling property of the locking piece 111 on the connecting bolt 102.

[0032] It should be noted that the tension sensor is fixedly arranged on each group of elastic ropes 113, the anti-disengagement assembly 11 further comprises a data processor, and the data processor is internally provided with a wireless transceiver module. In actual use, the tension sensor can monitor the tension on the elastic ropes 113. Therefore, when the fastening nut 103 is loosened on the connecting bolt 102, the locking piece 111 will inevitably be driven to move downward along the connecting bolt 102, so that the locking piece 111 shows signs of falling off from the connecting bolt 102. The downward movement of the locking piece 111 drives the elastic ropes 113 to be stretched. At this time, the tension on the elastic ropes 113 in this group is increased. When the difference between the tension value and the tension value on the other elastic ropes 113 exceeds the alarm threshold, the data processor sends an alarm signal through the wireless transceiver module to notify the remote terminal, so as to facilitate the maintenance of the staff.

[0033] Finally, it should be noted that the above only describes the preferred embodiments of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or equivalently replace some of the technical features, as long as they are within the spirit and principles of the present application. Any modification, equivalent replacement, improvement, etc. shall be included in the protection scope of the present application.

Claims

1. A connection structure for an offshore photovoltaic concrete pontoon, comprising longitudinal steel modules, on which are assembled multiple groups of transverse steel modules of the same structure via connectors, characterized in that: The longitudinal steel module comprises a first H-shaped steel (1) and a second H-shaped steel (3) arranged in parallel, a reinforcing rod (2) being welded and installed between the first H-shaped steel (1) and the second H-shaped steel (3), and the transverse steel module is a third H-shaped steel (4); The top and bottom of the first H-shaped steel (1) and the second H-shaped steel (3) are integrally formed with reinforcing ribs (12), and anti-collision rubber blocks (6) are bonded and assembled on the outer side walls of the first H-shaped steel (1) and the second H-shaped steel (3); The reinforcing rod (2) comprises a vertical web member (21) longitudinally welded between two upper and lower groups of reinforcing ribs (12), and a diagonal web member (22) is fixedly welded between two adjacent groups of vertical web members (21); The connecting piece is installed on the third H-shaped steel (4), completing the fixed assembly of the third H-shaped steel (4) on the top of the second H-shaped steel (3).

2. The connection structure of the offshore photovoltaic concrete pontoon according to claim 1 is characterized in that: The anti-collision rubber block (6) is bonded and assembled on the outer side walls of the first H-shaped steel (1) and the second H-shaped steel (3); floating airbags (7) are evenly fixedly installed on the outer side walls of the lower anti-collision rubber block (6), and two adjacent groups of floating airbags (7) are connected through an air guide tube (8).

3. The connection structure of the offshore photovoltaic concrete pontoon according to claim 2, characterized in that: The connecting member is configured as an embedded screw (5), and the embedded screw (5) is embedded in the reinforcing rib (12) at the top of the second H-shaped steel (3).

4. The connection structure of the offshore photovoltaic concrete pontoon according to claim 2, characterized in that: The connecting member is configured as an extended fixing bolt (9), the second H-shaped steel (3) is provided with a mounting groove which passes through the second H-shaped steel (3) and corresponds to the third H-shaped steel (4), and the third H-shaped steel (4) is provided with a threaded groove, the extended fixing bolt (9) passes through the threaded groove and the mounting groove from bottom to top and is fixed by a locking nut provided at the end.

5. The connection structure of the offshore photovoltaic concrete pontoon according to claim 2, characterized in that: The connecting member is configured as a flexible component (10), the second H-shaped steel (3) is provided with a receiving channel which passes through the second and third H-shaped steel (4), the third H-shaped steel (4) is provided with a threaded channel, the flexible component (10) comprises a flexible sleeve (101) which is assembled inside the receiving channel and the threaded channel, the upper and lower sets of flexible sleeves (101) are plugged with connecting bolts (102), the connecting bolts (102) extend downwardly out of the second H-shaped steel (3) and are threadedly equipped with fastening nuts (103), and a flexible rubber gasket is assembled between the fastening nut (103) and the second H-shaped steel (3).

6. The connection structure of the offshore photovoltaic concrete pontoon according to claim 5, characterized in that: Each group of the third H-shaped steel (4) is fixedly connected to the second H-shaped steel (3) via two groups of connection assemblies, each group of connection assemblies includes four groups of flexible assemblies (10), and each group of connection assemblies also includes an anti-slip assembly (11) assembled on the four groups of flexible assemblies (10), and the anti-slip assembly (11) is assembled on the bottom of the second H-shaped steel (3).

7. The connection structure of the offshore photovoltaic concrete pontoon according to claim 6, characterized in that: The anti-slip assembly (11) comprises a locking piece (111) threadedly assembled on the bottom end of the connecting bolt (102), a protective air bag (112) is suspended between four groups of locking pieces (111), and an elastic rope (113) is connected between the protective air bag (112) and each group of locking pieces (111).

8. The connection structure of the offshore photovoltaic concrete pontoon according to claim 7, characterized in that: The top of the second H-shaped steel (3) is fixedly equipped with a buffer rubber pad (13) arranged on both sides of the reinforcing rib (12), and the top of the buffer rubber pad (13) is bonded and assembled on the bottom of the third H-shaped steel (4).

9. The connection structure of the offshore photovoltaic concrete pontoon according to claim 8, characterized in that: A tension sensor is fixedly mounted on each group of the elastic ropes (113), and the anti-slip assembly (11) further comprises a data processor, and the data processor has a built-in wireless transceiver module.

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