Floating type floating body for offshore photovoltaic power generation, preparation mold and method

Abstract

The invention belongs to the technical field of offshore platforms, and discloses a floating type floating body for offshore photovoltaic power generation and a preparation mold and method.The floating type floating body for offshore photovoltaic power generation comprises a floating body base body, the floating body base body is made of lightweight concrete and composed of an inner-layer floating body and an outer-layer floating body, and the preparation mold of the floating type floating body for offshore photovoltaic power generation is used for preparing the floating type floating body for offshore photovoltaic power generation. The preparation mold is composed of an outer-layer mold, an inner-layer mold and a positioning support, the positioning support is installed at the top end of the outer-layer mold, the inner-layer mold is vertically and movably connected into the positioning support, the outer-layer mold comprises a bottom mold, side molds are fixedly installed on the four edges of the top end of the bottom mold, and every two adjacent side molds are fixedly installed through screws. The floating type floating body is made of lightweight concrete, and the concrete material has the advantages of environmental protection, low price, corrosion resistance, excellent physical properties and the like, so that the service life of the floating body of the offshore floating photovoltaic power station can be prolonged, the manufacturing cost of an offshore floating platform can be reduced, the safety of the floating body is improved, and the service life of the floating body is prolonged.

Description

Technical Field

[0001] The present invention belongs to the technical field of offshore platforms, and in particular relates to a floating buoy for offshore photovoltaic power generation, a mold and a method for preparing the same. Background Art

[0002] The floating offshore platform is an advanced technology that applies various functional facilities to the sea to solve the problem of insufficient land resources and under-utilization of resources such as sea, lakes and rivers. Its forms include water photovoltaic, water wind power, water ranch, water airport, etc. One of the key points of the floating offshore platform is the floating body, which provides buoyancy for the floating offshore platform to float on the water.

[0003] Traditional floating buoys are mostly made of polyethylene, steel, fiberglass and other materials. However, polyethylene is a high molecular polymer and is not an environmentally friendly material. It will cause pollution to the environment during production and use. In addition, it will age severely during use on the water and has a short service life. Due to its own characteristics, steel has poor corrosion resistance in water, which shortens the service life of the buoy, thereby increasing the subsequent operation and maintenance costs of the floating offshore platform. The production cost of fiberglass is relatively high, and it will age severely during use on the water like polyethylene. FRP also has poor physical properties such as poor elastic modulus and shear strength, and cannot meet the use requirements of large-scale offshore platforms.

[0004] In order to increase the buoyancy of the float, floating floats generally adopt a hollow structure. However, after adopting the hollow structure, the outer wall of the float may cause water seepage due to mutual collision or aging failure and rupture, resulting in a reduction or disappearance of the buoyancy of the float. In severe cases, it may even cause the offshore platform to sink. In later maintenance, it is necessary to frequently replace the failed float, resulting in high operating costs. Summary of the invention

[0005] The present invention aims at the problem that after adopting the hollow structure in the prior art, the outer wall of the floating body may cause water seepage due to mutual collision or aging failure and rupture, resulting in the reduction or disappearance of the buoyancy of the floating body, and even the sinking of the offshore platform. The failed floating body needs to be frequently replaced in the later maintenance, resulting in high operating costs. The following technical solutions are proposed:

[0006] A floating buoy for offshore photovoltaic power generation comprises a buoy base, wherein the buoy base is made of lightweight concrete and consists of an inner buoy and an outer buoy.

[0007] A preparation mold for a floating buoy for offshore photovoltaic power generation, the preparation mold consists of an outer mold, an inner mold and a positioning bracket, the positioning bracket is installed on the top of the outer mold, and the inner mold is movably connected to the positioning bracket up and down.

[0008] As a preferred embodiment of the above technical solution, the outer mold includes a bottom mold, and side molds are fixedly installed on the four sides of the top of the bottom mold. Two adjacent side molds are fixed by screws, and connecting blocks are symmetrically and equidistantly welded between the two side molds.

[0009] As a preferred embodiment of the above technical solution, the positioning bracket includes a support beam fixedly installed on the top of the side mold, a connecting plate is welded to one end face of the support beam, a positioning hole is opened at the bottom of one end of the connecting plate, a positioning frame is welded between the four support beams, reinforcing ribs are equidistantly welded on the outside of the positioning frame, and rollers are equidistantly and symmetrically connected to the inside of the positioning frame.

[0010] As a preferred embodiment of the above technical solution, the inner layer mold includes a bottomless square mold slidably connected to the outside of the roller, and pins are symmetrically connected to both end surfaces of the bottomless square mold, and a hanging ring is fixedly installed on the outside of the pin.

[0011] As a preferred embodiment of the above technical solution, positioning blocks are symmetrically rotatably connected on both sides of the roller, and the positioning blocks are snap-fitted and installed inside the positioning frame.

[0012] As a preferred embodiment of the above technical solution, a fitting hole is provided on one end surface of the connection block, the fitting hole and the positioning hole have the same size, and a connecting fixing pin passes through the positioning hole and the fitting hole.

[0013] As a preferred embodiment of the above technical solution, the maximum distance between the two support beams and the positioning frame is equal to the maximum distance between the two side molds.

[0014] A method for preparing a floating buoy for offshore photovoltaic power generation comprises the following steps:

[0015] S1: Prepare the mold: assemble the prefabricated template;

[0016] S2: Material preparation: Mix and prepare the outer layer and inner layer lightweight concrete separately;

[0017] S3: Making the outer layer: pouring an outer layer of lightweight concrete in the gap between the inner layer mold and the outer layer mold;

[0018] S4: Making the inner layer: pouring a layer of outer layer lightweight concrete on the bottom of the inner layer mold, then vibrating and slightly scraping it, then pouring another layer of inner layer lightweight concrete, then vibrating and slightly scraping it, and finally pouring another layer of outer layer lightweight concrete;

[0019] S5: Mold separation, separating the inner layer mold along the outer side and the inner layer;

[0020] S6: Remove the bracket: remove the positioning bracket;

[0021] S7: Surface cleaning: vibrate the poured structure and smooth the surface;

[0022] S8: Mould removal: After the concrete has initially hardened, remove the outer mould.

[0023] The beneficial effects of the present invention are:

[0024] (1) The floating buoy of the present invention is made of lightweight concrete. Since concrete materials have the advantages of being environmentally friendly, low-priced, corrosion-resistant and having excellent physical properties, the manufacturing cost of the offshore floating platform can be reduced, and its safety and service life can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 The structure diagram of a floating buoy for offshore photovoltaic power generation in Example 1 is shown;

[0026] Figure 2 Shown is a cross-sectional view of the floating body base in Example 1;

[0027] Figure 3 The structure diagram of the mold prepared in Example 1 is shown;

[0028] Figure 4 Shown is a schematic structural diagram of the outer mold in Example 1;

[0029] Figure 5 What is shown is a schematic diagram of the structure of the positioning bracket in Example 1;

[0030] Figure 6 Shown is a schematic structural diagram of the inner layer mold in Example 1.

[0031] In the figure: 1. floating body base; 11. inner floating body; 12. outer floating body; 2. outer mold; 21. bottom mold; 22. side mold; 23. connecting block; 3. positioning bracket; 31. positioning frame; 32. roller; 33. reinforcing rib; 34. supporting beam; 35. connecting plate; 36. positioning hole; 4. inner mold; 41. bottomless square mold; 42. pin; 43. lifting ring. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0033] Example 1

[0034] The present invention provides a floating body for offshore photovoltaic power generation, such as Figure 1-Figure 6 As shown, it includes a floating body base 1, which is made of lightweight concrete and consists of an inner floating body 11 and an outer floating body 12.

[0035] A preparation mold for a floating buoy for offshore photovoltaic power generation, the preparation mold consists of an outer mold 2, an inner mold 4 and a positioning bracket 3. The positioning bracket 3 is installed on the top of the outer mold 2, and the inner mold 4 is movably connected to the positioning bracket 3 up and down.

[0036] like Figure 3 and Figure 4 As shown, the outer mold 2 includes a bottom mold 21, and side molds 22 are fixedly installed on the four sides of the top of the bottom mold 21. Two adjacent side molds 22 are fixedly installed by screws, and connecting blocks 23 are symmetrically and equidistantly welded between the two side molds 22;

[0037] By assembling a plurality of side molds 22 and a bottom mold 21, a concave outer mold 2 is formed, and the connecting block 23 welded on the outside is used for assembly with the positioning bracket 3, so that the outer mold 2 can be easily assembled, and after assembly, the concrete can be easily placed;

[0038] like Figure 3 and Figure 5 As shown, the positioning bracket 3 includes a support beam 34 fixedly installed on the top of the side mold 22, the maximum distance between the two support beams 34 and the positioning frame 31 is equal to the maximum distance between the two side molds 22, which is convenient for assembly between the two, a connecting plate 35 is welded on one end face of the support beam 34, a positioning hole 36 is opened at the bottom of one end of the connecting plate 35, a fitting hole is opened on one end face of the connecting block 23, the fitting hole and the positioning hole 36 have the same size, and a connecting fixing pin is passed through the inside of the positioning hole 36 and the fitting hole for connection between the two, which changes the difficulty of connection between the two, a positioning frame 31 is welded between the four support beams 34, reinforcing ribs 33 are welded equidistantly on the outside of the positioning frame 31, rollers 32 are equidistantly rotatably connected inside the positioning frame 31, and positioning blocks are symmetrically rotatably connected on both sides of the rollers 32, and the positioning blocks are clamped and installed inside the positioning frame 31 for installation of the rollers 32, and can also be used to limit the rollers 32 to prevent the rollers 32 from being displaced;

[0039] Personnel overlap the support beam 34 on the top of the side mold 22, and then adapt the positioning hole 36 and the matching hole of the connecting plate 35 to each other, and then use the fixing pin to clamp and fix, so as to fix the positioning bracket 3 and the outer mold 2, and then use the middle positioning frame 31 and roller 32 to facilitate the displacement and limitation of the inner mold 4, thereby changing the difficulty of moving the inner mold 4.

[0040] like Figure 3 and Figure 6 As shown, the inner layer mold 4 includes a bottomless square mold 41 slidably connected to the outside of the roller 32, and pins 42 are symmetrically connected to both end surfaces of the bottomless square mold 41, and a hanging ring 43 is fixedly installed on the outside of the pin 42;

[0041] The pin 42 facilitates the installation between the lifting ring 43 and the bottomless square form 41, thereby reducing the difficulty of installing the lifting ring 43 and the bottomless square form 41. The lifting ring 43 facilitates the adjustment of the position of the bottomless square form 41, thereby reducing the difficulty of separating the bottomless square form 41 from the concrete.

[0042] A method for preparing a floating buoy for offshore photovoltaic power generation comprises the following steps:

[0043] S1: preparing the mold: assembling the prefabricated plates to form a molding mold;

[0044] S2: Material preparation: Mix and prepare the outer layer and inner layer lightweight concrete separately;

[0045] S3: Making the outer layer: pouring the outer layer lightweight concrete in the gap between the inner layer mold 4 and the outer layer mold 2, and vibrating to fill the entire gap;

[0046] S4: Making the inner layer: pouring a layer of outer layer lightweight concrete on the bottom of the inner layer mold 4, then vibrating and slightly scraping it, then pouring another layer of inner layer lightweight concrete, then vibrating and slightly scraping it, and finally pouring another layer of outer layer lightweight concrete. At this time, the overall thickness of the three layers of concrete should be close to the inner height of the outer layer mold 2;

[0047] S5: The mold is separated, and the other parts remain unchanged. The inner layer mold 4 is separated along the outer side and the inner layer by using a lifting device;

[0048] S6: Remove the bracket: remove the positioning bracket 3;

[0049] S7: Surface cleaning: vibrate the poured structure and smooth the surface;

[0050] S8: Mould removal: After the concrete has initially hardened, the outer mould 2 is removed and cured to a specified age.

[0051] Workflow: In actual use, the device is fixed between the bottom mold 21 and the side mold 22 to form the outer mold 2. Then, the support beam 34 is placed on the top of the side mold 22. Then, the fixing pin is fixed along the positioning hole 36 of the connecting plate 35 and the connecting block 23 to fix the positioning frame 31. Then, the bottomless square mold 41 is placed on the top of the bottom mold 21 along the roller 32 inside the positioning frame 31. Then, an outer layer of lightweight concrete is poured between the outer side of the bottomless square mold 41 and the inner walls of multiple side molds 22 to form an outer floating body 12. Then, a layer of outer lightweight concrete is poured on the bottom end of the inner wall of the bottomless square mold 41. Then, it is vibrated and slightly scraped. Then pour another layer of inner lightweight concrete, then vibrate and slightly scrape it flat, and finally pour another layer of outer lightweight concrete. At this time, the inner floating body 11 is covered up and down by the outer floating body 12, and then the rest of the parts remain motionless. Then use any other lifting equipment, connect it to the lifting ring 43 through the lifting equipment, and under the action of the lifting ring 43, drive the bottomless square mold 41 along the outer lightweight concrete and the concrete in the middle of the bottomless square mold 41 through the pin 42 to separate. At this time, the left and right sides of the inner floating body 11 are covered by the outer floating body 12 on the outside. Finally, remove the positioning bracket 3, and then smooth the surface of the prepared material. Finally, remove the outer mold 2 to obtain the floating body base 1.

[0052] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them.

Claims

1. A floating body for offshore photovoltaic power generation, characterized in that: The floating body base (1) is made of lightweight concrete and is composed of an inner floating body (11) and an outer floating body (12).

2. The preparation mold of a floating buoy for offshore photovoltaic power generation according to claim 1, characterized in that: The preparation mold consists of an outer mold (2), an inner mold (4) and a positioning bracket (3). The positioning bracket (3) is installed on the top of the outer mold (2), and the inner mold (4) is movably connected up and down inside the positioning bracket (3).

3. The preparation mold of a floating buoy for offshore photovoltaic power generation according to claim 2, characterized in that: The outer layer mold (2) comprises a bottom mold (21), and side molds (22) are fixedly installed on the four sides of the top of the bottom mold (21). Two adjacent side molds (22) are fixedly installed by screws, and connecting blocks (23) are symmetrically and equidistantly welded between the two side molds (22).

4. The preparation mold of a floating buoy for offshore photovoltaic power generation according to claim 2, characterized in that: The positioning bracket (3) comprises a support beam (34) fixedly mounted on the top end of the side mold (22); a connecting plate (35) is welded to one end face of the support beam (34); a positioning hole (36) is provided at the bottom of one end of the connecting plate (35); a positioning frame (31) is welded between four support beams (34); reinforcing ribs (33) are welded to the outside of the positioning frame (31) at equal intervals; and rollers (32) are symmetrically rotatably connected to the inside of the positioning frame (31) at equal intervals.

5. The preparation mold of a floating buoy for offshore photovoltaic power generation according to claim 2, characterized in that: The inner layer mold (4) comprises a bottomless square mold (41) slidably connected to the outside of the roller (32), and pins (42) are symmetrically connected to both end surfaces of the bottomless square mold (41) at equal distances, and a hanging ring (43) is fixedly installed on the outside of the pin (42).

6. The preparation mold for a floating buoy for offshore photovoltaic power generation according to claim 5, characterized in that: The rollers (32) are symmetrically rotatably connected with positioning blocks on both sides, and the positioning blocks are clamped and installed inside the positioning frame (31).

7. The preparation mold of a floating buoy for offshore photovoltaic power generation according to claim 4, characterized in that: A fitting hole is provided on one end surface of the connection block (23); the fitting hole and the positioning hole (36) have the same size; and a connecting fixing pin runs through the positioning hole (36) and the fitting hole.

8. The mold for preparing a floating buoy for offshore photovoltaic power generation according to claim 4, characterized in that: The maximum distance between the two support beams (34) and the positioning frame (31) is equal to the maximum distance between the two side molds (22).

9. The method for preparing a floating buoy for offshore photovoltaic power generation according to claim 1, characterized in that: The following steps are involved: S1: Prepare the mold: assemble the prefabricated template; S2: Material preparation: Mix and prepare the outer layer and inner layer lightweight concrete separately; S3: Making the outer layer: pouring an outer layer of lightweight concrete in the gap between the inner layer mold (4) and the outer layer mold (2); S4: Making the inner layer: pouring a layer of outer layer lightweight concrete on the inner bottom of the inner layer mold (4), then vibrating and slightly scraping it, then pouring another layer of inner layer lightweight concrete, then vibrating and slightly scraping it, and finally pouring another layer of outer layer lightweight concrete; S5: Mold separation, separating the inner layer mold along the outer side and the inner layer; S6: Remove the bracket: remove the positioning bracket (3); S7: Surface cleaning: vibrate the poured structure and smooth the surface; S8: Mould removal: After the concrete has completed initial hardening, the outer mould is removed.

Images