Marine photovoltaic large pipe pile

Abstract

The utility model relates to the technical field of pipe pile discloses a large -scale pipe pile of offshore photovoltaic, including bottom spiral pipe, the top surface fixed mounting of bottom spiral pipe has the taper pipe, the top surface fixed mounting of taper pipe has the top spiral pipe, the top inside circular wall surface fixed mounting of top spiral pipe has the fixed ring, the outside circular wall surface fixed mounting of bottom spiral pipe has the horizontal lifting lug, the outside circular wall surface fixed mounting of top spiral pipe has two direction lifting lug and vertical lifting lug, cooperate the protection layer through being set up bottom spiral pipe, taper pipe and top spiral pipe, make can support photovoltaic equipment in the deeper place on the sea, the overall bottom diameter is greater than the top diameter, effectively support, and through the anticorrosive layer greatly improved the anticorrosive effect of bottom spiral pipe, taper pipe and top spiral pipe, greatly prolong the service life, and be more practical.

Description

Technical Field

[0001] This utility model relates to the field of pipe pile technology, and in particular to a large-scale offshore photovoltaic pipe pile. Background Technology

[0002] Offshore photovoltaics refers to photovoltaic power generation systems built in aquatic environments such as oceans, lakes, and reservoirs. By installing photovoltaic modules above the water surface or fixing them to underwater foundations, solar energy is converted into electrical energy. Its advantages include not occupying land resources, good sunlight conditions on the water surface, and water temperature that is beneficial for heat dissipation of battery modules. It can also be integrated with aquaculture for comprehensive utilization. The use of pipe piles in offshore photovoltaics is mainly due to the following reasons: they can provide a stable supporting foundation, adapt to complex marine geological conditions, and facilitate construction and are economical.

[0003] Existing offshore photovoltaic equipment lacks large-scale pipe piles, making it difficult to use small-scale pipe piles with suitable dimensions and corrosion-resistant structures in deep waters, thus hindering the installation of photovoltaic equipment. Therefore, it is necessary to propose a large-scale pipe pile for offshore photovoltaic systems to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a large-scale offshore photovoltaic pipe pile.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A large-scale offshore photovoltaic pipe pile includes a bottom spiral pipe, a tapered pipe fixedly installed on the top surface of the bottom spiral pipe, a top spiral pipe fixedly installed on the top surface of the tapered pipe, a fixing ring fixedly installed on the inner circular wall of the top of the top spiral pipe, a horizontal lifting lug fixedly installed on the outer circular wall of the bottom spiral pipe, and a two-way lifting lug and a vertical lifting lug fixedly installed on the outer circular wall of the top spiral pipe.

[0007] As a further embodiment of this utility model, a number of reinforcing ribs are fixedly installed on the inner circular wall surface of the top spiral tube, and the reinforcing ribs are fixedly installed with the fixing ring.

[0008] As a further embodiment of this utility model, the inner and outer circular walls of the bottom spiral tube, the conical tube, and the top spiral tube are respectively coated with three layers of anti-corrosion coating.

[0009] As a further embodiment of this utility model, the inner layer of the three-layer anti-corrosion layer is epoxy powder, the middle layer is an adhesive layer, and the outer layer is a polyethylene sheath layer.

[0010] As a further embodiment of this utility model, a mud protection layer is provided on the outside of the three anti-corrosion layers on the outer circular wall of the bottom spiral tube. The mud protection layer is an epoxy resin layer and a glass fiber cloth layer, and a corrosion inhibitor is added to the coating to inhibit anaerobic corrosion caused by sulfate-reducing bacteria.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] The combination of bottom spiral tubes, conical tubes, and top spiral tubes with protective layers enables the support of photovoltaic equipment at greater depths at sea. The overall bottom diameter is larger than the top diameter, effectively supporting the installation of photovoltaic equipment. At the same time, the anti-corrosion layer greatly improves the anti-corrosion effect of the bottom spiral tubes, conical tubes, and top spiral tubes, significantly extending their service life, making it quite practical. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of a large offshore photovoltaic pipe pile proposed in this utility model.

[0014] Figure 2 This is a schematic diagram of the bottom spiral pipe structure of a large marine photovoltaic pipe pile proposed in this utility model;

[0015] Figure 3 This is a schematic diagram of the top spiral pipe structure of a large offshore photovoltaic pipe pile proposed in this utility model;

[0016] Figure 4 This is a schematic diagram of the conical tube structure of a large-scale offshore photovoltaic pipe pile proposed in this utility model.

[0017] In the diagram: 1. Bottom spiral tube; 2. Conical tube; 3. Top spiral tube; 4. Horizontal lifting lug; 5. Two-way lifting lug; 6. Vertical lifting lug; 7. Reinforcing rib; 8. Fixing ring. Detailed Implementation

[0018] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0019] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] Reference Figures 1-4 A large-scale offshore photovoltaic pipe pile includes a bottom spiral pipe 1, a cone pipe 2 fixedly installed on the top surface of the bottom spiral pipe 1, a top spiral pipe 3 fixedly installed on the top surface of the cone pipe 2, a fixing ring 8 fixedly installed on the inner circular wall of the top of the top spiral pipe 3, a horizontal lifting lug 4 fixedly installed on the outer circular wall of the bottom spiral pipe 1, and a two-way lifting lug 5 and a vertical lifting lug 6 fixedly installed on the outer circular wall of the top spiral pipe 3.

[0022] In this embodiment, several reinforcing ribs 7 are fixedly installed on the inner circular wall of the top spiral tube 3, and the reinforcing ribs 7 are fixedly installed with the fixing ring 8. The inner and outer circular walls of the bottom spiral tube 1, the tapered tube 2, and the top spiral tube 3 are respectively coated with three layers of anti-corrosion coating. The inner layer of the three-layer anti-corrosion coating is epoxy powder, the middle layer is an adhesive layer, and the outer layer is a polyethylene sheath layer. A mud protection layer is provided outside the three-layer anti-corrosion coating on the outer circular wall of the bottom spiral tube 1. The mud protection layer is composed of an epoxy resin layer and a fiberglass cloth layer, and a corrosion inhibitor is added to the coating to inhibit anaerobic corrosion caused by sulfate-reducing bacteria.

[0023] As can be seen from the above description, the embodiments of this utility model achieve the following technical effects:

[0024] It should be noted that the spiral pipe (spiral welded pipe) is a steel pipe made of hot-rolled steel plate or steel strip as raw material, which is cold-bent and then arc-welded (submerged arc welding or high-frequency welding) along the spiral direction. Its weld seam is spirally distributed and forms a certain angle (usually 30°-60°) with the axis of the steel pipe, which is different from the straight seam welded pipe (the weld seam is parallel to the axis). In actual production, the dimensions of the bottom spiral pipe 1, the tapered pipe 2 and the top spiral pipe 3 can be as follows: the height of the bottom spiral pipe 1 is 10700mm, the thickness is 20mm and the diameter is 1400mm; the height of the tapered pipe 2 is 7000mm and the thickness is 17mm; the height of the top spiral pipe 3 is 8330mm, the thickness is 17mm and the diameter is 1000mm; and the inner diameter of the fixing ring 8 is 400mm.

[0025] In use, after the bottom helical tube 1 is inserted into the seabed using the equipment, a flange can be installed on the top surface of the top helical tube 3 to connect the photovoltaic support equipment. The total height of the bottom helical tube 1, the conical tube 2, and the top helical tube 3 is approximately 26,000 mm. This height and large volume allow it to be inserted into deeper seawater, ensuring effective support for the photovoltaic components. Furthermore, the diameter of the bottom helical tube 1 is larger than that of the conical tube 2 and the top helical tube 3, resulting in a larger bottom support area and ensuring better support. The conical tube 2, being tapered, enhances the stability of the support for the top helical tube 3. Several reinforcing ribs 7 are used to reinforce the connection between the helical tube 3 and the fixing ring 8. The connection is strengthened, and the epoxy powder forms a chemical anchor with the steel surface through the external three-layer anti-corrosion layer. The adhesive enhances the interlayer bonding force, and the polyethylene sheath provides a physical barrier, which greatly improves the seawater permeability coefficient. It is suitable for underwater areas (long-term immersion areas) and mud areas. At the same time, by setting a mud protection layer, when the outside of the bottom spiral pipe 1 is buried in the seabed, the corrosion inhibitor can be zinc chromate yellow or other corrosion inhibitors, which can inhibit anaerobic corrosion caused by sulfate-reducing bacteria, etc., and greatly improve the service life. It is quite practical. The specific coating process and pipe body construction process are existing technologies and will not be described in detail.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A large-scale offshore photovoltaic pipe pile, comprising a bottom helical pipe (1), characterized in that: A tapered tube (2) is fixedly installed on the top surface of the bottom spiral tube (1), a top spiral tube (3) is fixedly installed on the top surface of the tapered tube (2), a fixing ring (8) is fixedly installed on the inner wall of the top spiral tube (3), a horizontal lifting lug (4) is fixedly installed on the outer wall of the bottom spiral tube (1), and a two-way lifting lug (5) and a vertical lifting lug (6) are fixedly installed on the outer wall of the top spiral tube (3).

2. The large-scale offshore photovoltaic pipe pile according to claim 1, characterized in that, The inner circular wall of the top spiral tube (3) is fixedly installed with several reinforcing ribs (7), and the reinforcing ribs (7) are fixedly installed with the fixing ring (8).

3. A large offshore photovoltaic pipe pile according to claim 1, characterized in that, The inner and outer circular walls of the bottom spiral tube (1), the cone tube (2), and the top spiral tube (3) are coated with three layers of anti-corrosion coating.

4. A large offshore photovoltaic pipe pile according to claim 3, characterized in that, The inner layer of the three-layer anti-corrosion coating is epoxy powder, the middle layer is an adhesive layer, and the outer layer is a polyethylene sheath.

5. A large-scale offshore photovoltaic pipe pile according to claim 1, characterized in that, The outer circular wall of the bottom spiral tube (1) is provided with a mud protection layer outside the three anti-corrosion layers. The mud protection layer is an epoxy resin layer and a glass fiber cloth layer. Corrosion inhibitors are added to the coating to inhibit anaerobic corrosion caused by sulfate-reducing bacteria.

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