Foundation platform for offshore box-type substation

Abstract

The utility model discloses a box -type substation foundation platform for sea, relate to substation technical field, wherein, including box -type substation, support platform, a plurality of support components and a plurality of cable support component, box -type substation installs in support platform, a plurality of support components are set up in rectangle, every support component all includes cement prop, steel sheet and ground flat iron, steel sheet is welded in one end of cement prop, and the side of steel sheet is connected with support platform away from cement prop, and the other end of cement prop is used for fixed connection with seabed foundation through pre -buried spare or special connecting piece, the first end of ground flat iron is connected with support platform, and the second end of ground flat iron is used for burying in ground, and ground flat iron is pasted with cement prop, and cable support component is used for supporting cable, and cable support component is connected with cement prop, or, cable support component is connected with support platform. The installation flow is designed according to the modular assembly thought, and the offshore construction difficulty is reduced significantly, and the operation cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of substation technology, and in particular to a prefabricated substation foundation platform for offshore use. Background Technology

[0002] In recent years, with the continuous growth of global demand for clean energy, offshore photovoltaic (PV) has rapidly expanded in scale as an emerging renewable energy utilization method, and the offshore PV industry has ushered in unprecedented development opportunities.

[0003] The construction of offshore photovoltaic power plants faces many challenges. Among them, the stability and safety of the basic platform of the prefabricated substation, as an important component of the photovoltaic power plant, directly affects the operating efficiency and safety of the entire power plant.

[0004] In the existing technology, the construction of traditional pit-type box substations at sea is complicated, requiring the involvement of large equipment and long-term operation, which leads to increased construction difficulty and cost.

[0005] Therefore, it is necessary to provide a new offshore prefabricated substation foundation platform to solve the above-mentioned technical problems. Utility Model Content

[0006] The main purpose of this utility model is to propose a box-type substation foundation platform for offshore use, aiming to improve the technical problems of high construction difficulty and high cost in the existing technology.

[0007] To achieve the above objectives, this utility model provides a marine prefabricated substation foundation platform, comprising:

[0008] Prefabricated substation;

[0009] The prefabricated substation is installed on the support platform.

[0010] Multiple support components are arranged in a rectangular shape. Each support component includes a concrete pillar and a grounding flat iron. One end of the concrete pillar is connected to the support platform, and the other end of the concrete pillar is used to fix it to the subsea foundation through embedded parts or special connectors. The first end of the grounding flat iron is connected to the support platform, and the second end of the grounding flat iron is used to be buried in the ground. The grounding flat iron is in contact with the concrete pillar.

[0011] Multiple cable support assemblies, the cable support assemblies being used to support cables, the cable support assemblies being connected to the concrete pillars, or the cable support assemblies being connected to the support platform.

[0012] In one embodiment, the cement support is hollow.

[0013] In one embodiment, the outer periphery of the cement pillar is provided with a plurality of annular protrusions spaced apart along the length direction of the cement pillar.

[0014] In one embodiment, the offshore prefabricated substation foundation platform further includes an oil drain pipe, an emergency oil tank, and a support frame. The support frame is connected to the concrete pillar or the support platform. The emergency oil tank is installed on the support frame. The two ends of the oil drain pipe are respectively connected to the oil inlet of the emergency oil tank and the oil drain hole of the prefabricated substation. The oil drain pipe is equipped with a switch valve for connecting or closing the oil drain pipe.

[0015] In one embodiment, the offshore box-type substation foundation platform further includes two rubber pads. The emergency oil tank is cylindrical, and the two rubber pads are respectively disposed on both sides of the emergency oil tank. The top of the rubber pads abuts against the emergency oil tank, and the bottom of the rubber pads abuts against the support frame.

[0016] In one embodiment, the length of the rubber pad is equal to the length of the emergency oil tank.

[0017] In one embodiment, the offshore box-type substation foundation platform further includes a ladder, which is welded to the support platform for accessing the support platform.

[0018] In one embodiment, the offshore prefabricated substation foundation platform further includes a guardrail that surrounds the edge of the support platform.

[0019] In one embodiment, the surface of the support platform is covered with patterned steel plates.

[0020] In one embodiment, the offshore prefabricated substation foundation platform further includes a communication component, which is installed on the support platform and is used to connect to external communication equipment.

[0021] In the above scheme, the offshore prefabricated substation foundation platform includes a prefabricated substation, a support platform, multiple support components, and multiple cable support components. The prefabricated substation is installed on the support platform. The multiple support components are arranged in a rectangular shape. Each support component includes a concrete pillar and a grounding flat iron. One end of the concrete pillar is connected to the support platform, and the other end of the concrete pillar is used to fix it to the seabed foundation through embedded parts or special connectors. The first end of the grounding flat iron is connected to the support platform, and the second end of the grounding flat iron is used to be buried in the ground. The grounding flat iron is in contact with the concrete pillar. The cable support components are used to support cables. The cable support components are connected to the concrete pillar, or the cable support components are connected to the support platform. Specifically, embedded parts or special connectors are installed on the seabed foundation, and multiple concrete pillars are hoisted one by one to the predetermined positions. The concrete pillars are made of high-strength cement material, which has excellent load-bearing capacity and corrosion resistance. The multiple concrete pillars are fixed to the seabed foundation through embedded parts or special connectors. Then, a steel plate is welded to the top of each concrete pillar. Next, the support platform is hoisted above the multiple concrete pillars, and the support platform is connected to the multiple steel plates by welding or high-strength bolts to form a stable platform frame. The prefabricated substation is installed on the support platform. Then, grounding flat iron is attached to the concrete support, with the top of the grounding flat iron welded or bolted to the support platform and the bottom of the grounding flat iron buried in the ground, thus forming an effective grounding system to ensure the electrical safety of the prefabricated substation. According to the required number of cables, the corresponding number of cable bracket assemblies are selected, and then multiple cable bracket assemblies are installed on the concrete pillars according to the preset cable routing path. Then, the cables are laid to connect the prefabricated substation to the land-based lines, thus completing the layout of the foundation platform for the offshore prefabricated substation. Compared to traditional pit-type substation foundations, which require the construction of a pit on the seabed and thus necessitate the use of large equipment for and related to the construction, the utility model eliminates the need for a pit and thus eliminates the need for various large equipment for and related to the construction. This significantly reduces the difficulty of offshore construction, shortens the operation time, and reduces the operating costs. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0023] Figure 1 A schematic diagram of the overall structure of an embodiment of the offshore box-type substation foundation platform provided by this utility model;

[0024] Figure 2 A schematic diagram of the overall structure from another perspective of an embodiment of the offshore box-type substation foundation platform provided by this utility model;

[0025] Figure 3 A schematic diagram of the internal structure of a cement support column according to an embodiment of the present invention;

[0026] Figure 4 A schematic diagram of the connection between the support component and the support platform provided in this utility model from one perspective;

[0027] Figure 5 Another perspective connection diagram of the support component and bracket platform provided by this utility model;

[0028] Figure 6 A schematic diagram of the structure of an embodiment of the support platform provided by this utility model;

[0029] Figure 7 A schematic diagram showing the connection of an embodiment of the cement support and cable bracket assembly provided by this utility model;

[0030] Figure 8 for Figure 7 Enlarged view at point A;

[0031] Figure 9 A schematic diagram showing the connection between a cement support pillar and an emergency oil tank according to an embodiment of this utility model.

[0032] Explanation of icon numbers:

[0033] 100. Offshore prefabricated substation foundation platform; 1. Prefabricated substation; 2. Support platform; 21. Ladder; 22. Guardrail; 23. Patterned steel plate; 24. Communication components; 241. Communication box; 242. Communication bracket; 243. Reinforcing member; 3. Support assembly; 31. Concrete pillar; 311. Annular protrusion; 32. Steel plate; 33. Grounding flat iron; 4. Cable support assembly; 5. Hoop bracket; 6. Emergency oil tank; 7. Support frame; 8. Rubber pad.

[0034] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0036] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0037] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0038] To achieve the above objectives, please refer to Figure 1 , Figure 2 , Figure 4 and Figure 5This utility model proposes a marine prefabricated substation foundation platform 100, including a prefabricated substation 1, a support platform 2, multiple support components 3, and multiple cable support components 4. The prefabricated substation 1 is installed on the support platform 2. The multiple support components 3 are arranged in a rectangular shape. Each support component 3 includes a cement pillar 31 and a grounding flat iron 33. One end of the cement pillar 31 is connected to the support platform 2, and the other end of the cement pillar 31 is used to fix it to the seabed foundation through pre-embedded parts or special connectors. The first end of the grounding flat iron 33 is connected to the support platform 2, and the second end of the grounding flat iron 33 is used to be buried in the ground. The grounding flat iron 33 is attached to the cement pillar 31. The cable support components 4 are used to support cables. The cable support components 4 are connected to the cement pillar 31, or the cable support components 4 are connected to the support platform 2. Specifically, embedded parts or special connectors are installed on the seabed foundation, and multiple cement pillars 31 are hoisted one by one to the predetermined positions. The cement pillars 31 are made of high-strength cement material, possessing excellent load-bearing capacity and corrosion resistance. The multiple cement pillars 31 are fixed to the seabed foundation using embedded parts or special connectors, ensuring the stability of the cement pillars 31 installation. Then, a steel plate 32 is welded to the top of each cement pillar 31. Next, the support platform 2 is hoisted above the multiple cement pillars 31, and the support platform 2 is connected to the multiple steel plates 32 by welding or high-strength bolts to form a stable platform frame. The support platform 2 consists of multiple platform channel steels connected by welding or high-strength bolts. The prefabricated substation 1 is installed on the support platform 2. The steel plates 32 increase the load-bearing capacity. The concrete support 31 has a load-bearing capacity; then the grounding flat iron 33 is attached to the concrete support, the top of the grounding flat iron 33 is welded or bolted to the support platform 2, and the bottom of the grounding flat iron 33 is buried in the ground, thus forming an effective grounding system to ensure the electrical safety of the box-type substation 1; according to the required number of cables, select the corresponding number of cable bracket assemblies 4, and then install multiple cable bracket assemblies 4 on the concrete support 31 according to the preset cable routing path, or directly install the cable bracket assemblies 4 on the support platform 2 by bolting or welding, and then lay the cables. According to the cable routing and quantity, the layout and quantity of the cable bracket assemblies 4 are reasonably designed to ensure the safe and orderly arrangement of the cables on the platform, connecting the box-type substation 1 to the land-based lines, thus completing the layout of the offshore box-type substation foundation platform 100.Compared to traditional pit-type substation foundations, which require the construction of a pit on the seabed, large equipment for and related to the construction is needed. In this embodiment, the entire installation process of the offshore prefabricated substation foundation platform 100 is designed with a modular assembly approach, eliminating the need for complex on-site construction and the construction of a pit. This eliminates the need for various large equipment for and related to the construction, significantly reducing the difficulty of offshore construction, the time required for operation, and the cost of operation.

[0039] Furthermore, the offshore prefabricated substation foundation platform 100 also includes a clamp support 5, which is used to fix and support various pipes, cables and other auxiliary facilities to ensure their stability and safety on the offshore prefabricated substation foundation platform 100. The clamp support 5 is connected to the support platform 2 or the concrete support column 31 by welding or bolting.

[0040] Further, please refer to Figure 1 , Figure 2 , Figure 7 and 8 Each concrete support post 31 is fitted with two clamp brackets 5, which are then bolted together to secure them firmly to the concrete support post 31. The cable bracket assembly 4 is welded or bolted to the clamp brackets 5, allowing it to be installed on the concrete support post 31. This structure enables the quick disassembly and installation of the fixing frame and fasteners, thereby adjusting the position of the fixing frame on the concrete support post 31 to accommodate various cable line layouts.

[0041] The cable bracket assembly 4 can be divided into low-voltage cable brackets and high-voltage cable brackets, which have the same structure but are used to support and fix cables of different voltage levels respectively. This allows for the differentiation of high-voltage cables and low-voltage cables, facilitating wiring and subsequent maintenance.

[0042] Please see Figure 3 In one embodiment, the cement support 31 is hollow. High-strength cement material is poured into a mold to form a hollow support. Since the cement support 31 will extend into the sea, its hollow structure reduces the resistance encountered during installation. It should be noted that the cement support 31 contains multiple circumferentially arranged reinforcing bars, and the high-strength cement material is poured to cover these bars.

[0043] Please see Figures 1 to 3In one embodiment, the outer periphery of the cement support 31 is provided with a plurality of annular protrusions 311 spaced apart along the length direction of the cement support 31. High-strength cement material is poured into a mold to form a cement support 31 with a plurality of annular protrusions 311 spaced apart along the length direction. Since the cement support 31 will extend into the sea, the annular protrusions 311 can increase the contact area between the cement support 31 and the seabed, thereby improving the stability of the cement support 31 and ensuring its stability and safety.

[0044] Please see Figure 1 , Figure 2 and Figure 9 In one embodiment, the offshore prefabricated substation foundation platform 100 further includes an oil drain pipe, an emergency oil tank 6, and a support frame 7. The support frame 7 is connected to the concrete pillar 31 or the support platform 2. The emergency oil tank 6 is installed on the support frame 7. The two ends of the oil drain pipe are respectively connected to the oil inlet of the emergency oil tank 6 and the oil drain hole of the prefabricated substation 1. The oil drain pipe is equipped with a switch valve for connecting or closing the oil drain pipe. The support frame 7 is connected to the concrete pillar 31 or the support platform 2 by bolts or welding. The emergency oil tank 6 is installed on the support frame 7. Then, the oil inlet of the emergency oil tank 6 and the oil drain hole of the prefabricated substation 1 are connected by the oil drain pipe. The connection and closure of the pipeline are achieved by the switch valve. In this way, when the electrical equipment in the prefabricated substation 1 fails, the switch valve is opened, and the leaked insulating oil will flow into the emergency oil tank 6 through the oil drain pipe, preventing the oil from spreading and causing environmental pollution. The emergency oil tank 6 is made of corrosion-resistant material.

[0045] Furthermore, since each cement support 31 is fitted with two interlocking clamp brackets 5, the support frame 7 is bolted or welded to the clamp brackets 5 on the cement support 31. By installing the support frame 7 in this way, the height position of the support frame 7 can be quickly adjusted.

[0046] Furthermore, the accident oil tank 6 is fixed by a clamp bracket 5, which is snapped onto the accident oil tank 6. Then, the two sides of the clamp bracket 5 are fixed to the support frame 7 by welding or bolting. This can further improve the installation firmness of the accident oil tank 6.

[0047] Please see Figure 2 and Figure 9In one embodiment, the offshore prefabricated substation foundation platform 100 further includes two rubber pads 8. The emergency oil tank 6 is cylindrical, and the two rubber pads 8 are respectively disposed on both sides of the emergency oil tank 6. The top of the rubber pads 8 abuts against the emergency oil tank 6, and the bottom of the rubber pads 8 abuts against the support frame 7. The setting of the rubber pads 8 is a combination of material properties and marine environmental requirements. Through four functions—buffering and shock absorption, anti-slip limiting, isolation protection, and error compensation—it not only ensures the structural safety and operational stability of the emergency oil tank 6, but also indirectly improves the sealing performance of the oil discharge system, preventing oil leakage and marine pollution.

[0048] In one embodiment, the length of the rubber pad 8 is equal to the length of the emergency oil tank 6. This design, where the length of the rubber pad 8 is equal to the axial length of the cylindrical emergency oil tank 6, maximizes the contact area, ensures comprehensive constraint, and evens out stress distribution through full axial coverage. This enhances the core functions of the rubber pad 8, including cushioning and shock absorption, lateral anti-slip properties, and corrosion protection, while also improving installation adaptability.

[0049] Please see Figure 1 and Figure 2 In one embodiment, the offshore prefabricated substation foundation platform 100 further includes a ladder 21, which is welded to the support platform 2 for accessing the support platform 2. The ladder 21 is located on one or both sides of the support platform 2 to facilitate workers' access to and from the platform. The ladder 21 is made of high-strength material and is equipped with anti-slip patterns and protective devices to ensure the safety of workers.

[0050] Please see Figure 1 and Figure 2 In one embodiment, the offshore prefabricated substation foundation platform 100 also includes a guardrail 22, which is arranged around the edge of the support platform 2. The guardrail 22, arranged around the edge of the support platform 2, can prevent personnel from falling into the sea, prevent objects from falling, and also increase the stability of the structure; therefore, the guardrail 22 directly ensures the safety of personnel and equipment, and indirectly enhances the platform's adaptability to the harsh marine environment.

[0051] Please see Figure 6 In one embodiment, the surface of the support platform 2 is covered with a patterned steel plate 23. Covering the surface of the support platform 2 with a patterned steel plate 23 increases its anti-slip properties and wear resistance, while also increasing the strength of the support platform 2.

[0052] Please see Figure 1 and Figure 2In one embodiment, the offshore prefabricated substation base platform 100 also includes a communication component 24, which is mounted on the support platform 2 and is used for signal connection with external communication equipment. The communication component 24 ensures unimpeded communication between the platform and shore or other equipment, thus ensuring that personnel on the support platform 2 can be contacted from shore at any time.

[0053] Please see Figure 1 and Figure 2 Furthermore, the communication component 24 includes a communication box 241 and a communication bracket 242. The communication box 241 is bolted or welded to the communication bracket 242, and the communication bracket 242 is welded or bolted to the bracket platform 2. The communication component 24 also includes a reinforcing member 243. One end of the reinforcing member 243 is welded or bolted to the communication bracket 242, and the other end of the reinforcing member 243 is welded or bolted to the bracket platform 2. This can increase the connection strength between the communication bracket 242 and the bracket platform 2.

[0054] The above are merely exemplary embodiments of this utility model and do not limit the scope of protection of this utility model. Any equivalent structural transformations made based on the technical concept of this utility model and the contents of this utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the scope of protection of this utility model.

Claims

1. A prefabricated substation foundation platform for offshore use, characterized in that, include: Prefabricated substation; The prefabricated substation is installed on the support platform. Multiple support components are arranged in a rectangular shape. Each support component includes a concrete pillar and a grounding flat iron. One end of the concrete pillar is connected to the support platform, and the other end of the concrete pillar is used to fix it to the seabed foundation through embedded parts or special connectors. The first end of the grounding flat iron is connected to the support platform, and the second end of the grounding flat iron is used to be buried in the ground. The grounding flat iron is in contact with the concrete pillar. Multiple cable support assemblies, the cable support assemblies being used to support cables, the cable support assemblies being connected to the concrete pillars, or the cable support assemblies being connected to the support platform.

2. The offshore prefabricated substation foundation platform as described in claim 1, characterized in that, The cement support is hollow.

3. The offshore prefabricated substation foundation platform as described in claim 2, characterized in that, The outer periphery of the cement pillar is provided with a plurality of annular protrusions spaced apart along the length of the cement pillar.

4. The offshore prefabricated substation foundation platform as described in claim 1, characterized in that, The offshore prefabricated substation foundation platform also includes an oil drain pipe, an emergency oil tank, and a support frame. The support frame is connected to the concrete pillar or the support platform. The emergency oil tank is installed on the support frame. The two ends of the oil drain pipe are respectively connected to the oil inlet of the emergency oil tank and the oil drain hole of the prefabricated substation. The oil drain pipe is equipped with a switch valve for connecting or closing the oil drain pipe.

5. The offshore prefabricated substation foundation platform as described in claim 4, characterized in that, The offshore box-type substation foundation platform also includes two rubber pads. The emergency oil tank is cylindrical, and the two rubber pads are respectively set on both sides of the emergency oil tank. The top of the rubber pads abuts against the emergency oil tank, and the bottom of the rubber pads abuts against the support frame.

6. The offshore prefabricated substation foundation platform as described in claim 5, characterized in that, The length of the rubber pad is equal to the length of the emergency oil tank.

7. The offshore prefabricated substation foundation platform as described in any one of claims 1 to 6, characterized in that, The offshore box-type substation foundation platform also includes a ladder, which is welded to the support platform for accessing the support platform.

8. The offshore prefabricated substation foundation platform as described in any one of claims 1 to 6, characterized in that, The offshore prefabricated substation foundation platform also includes a protective railing, which is set around the edge of the support platform.

9. The offshore prefabricated substation foundation platform as described in any one of claims 1 to 6, characterized in that, The surface of the support platform is covered with patterned steel plates.

10. The offshore prefabricated substation foundation platform as described in any one of claims 1 to 6, characterized in that, The offshore box-type substation foundation platform also includes a communication component, which is installed on the support platform and is used to connect with external communication equipment.

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