A skid-mounted booster station

Abstract

The utility model relates to the technical field of skid-mounted equipment, and specifically discloses a skid-mounted booster station, which comprises a power distribution skid, the power distribution skid comprises a steel structure platform, the steel structure platform is connected to a concrete slab through embedded locking pieces, the concrete slab is connected to a concrete support beam through embedded locking pieces, the concrete support beam is connected to a concrete stand column, and the diameter of the lower part of the stand column is larger than that of the upper part. The utility model has good integration, high construction speed and stable construction quality.

Description

Technical Field

[0001] This utility model relates to the field of skid-mounted equipment technology, specifically a skid-mounted booster station. Background Technology

[0002] Against the backdrop of rapid development in clean energy, the scale of wind and solar power plant construction in cold regions is continuously expanding, but the traditional substation construction model faces significant challenges. These projects are located in areas with long winters, where temperatures can drop to -30°C. When ambient temperatures fall below -5°C, traditional wet construction work, such as concrete pouring, is forced to halt. On-site electrical and civil engineering cross-operations are costly, prone to errors, and lack standardization. While some advanced technologies employ prefabrication concepts, they suffer from shortcomings in integration and cost control. These factors make it difficult to meet the demands of efficient and low-cost construction for wind and solar power plants in cold regions.

[0003] Long construction period: Traditional substation construction takes 3-6 months from foundation construction to equipment commissioning. This project's construction period was extended by 2.5 months due to the winter shutdown.

[0004] Low-temperature construction is restricted: When the ambient temperature is below -5℃, traditional wet operations such as concrete pouring are forced to stop. Traditional construction methods such as concrete pouring are greatly restricted and may even have to be suspended. This not only affects the construction period, but also means that the construction of wind and solar power stations in cold regions can only be concentrated in a limited construction season, and continuous construction throughout the year is not possible.

[0005] High costs associated with overlapping operations: Traditional construction methods involve a large number of overlapping on-site operations, such as the overlap between civil construction and electrical equipment installation. This not only easily leads to mutual interference during the construction process and increases the difficulty of construction management, but also causes waste of labor, materials and equipment, significantly increasing the overall cost.

[0006] Ecologically sensitive areas: Plateaus or nature reserves have strict control over construction pollution, and traditional wet operations generate dust and wastewater.

[0007] Currently, some traditional booster station construction technologies still employ on-site casting and decentralized installation, resulting in long construction cycles and significant environmental impact. As wind and solar power plant construction expands into cold regions and ecologically sensitive areas, higher demands are placed on booster station construction technologies in terms of adaptability to extreme cold environments, construction efficiency, and cost control. Therefore, developing an integrated skid-mounted booster station and its construction method that can be rapidly deployed, adapted to winter environments, and is cost-effective has significant practical implications and market demand.

[0008] Chinese invention application (CN202411952758.5) discloses a "Prefabricated Cabin Device for Electrical Equipment in a New Energy Substation," which belongs to the field of substation construction. It includes: a container frame with a door installed on its front end and ventilation slots on its side walls; several switchgear cabinets arranged in an array inside the container frame; an industrial air conditioner installed in the ventilation slots; and a heat dissipation assembly. This invention, by setting up a heat dissipation assembly and an industrial air conditioner, ensures that cold air is evenly blown onto the switchgear cabinets, guaranteeing that the cold air can comprehensively and evenly cover all parts of the switchgear cabinets, resulting in a more balanced overall temperature, greatly improving heat dissipation efficiency, and reducing the risk of equipment failure due to localized overheating.

[0009] Chinese utility model application (CN202323208835.X) discloses "A quick-fixing component for a prefabricated substation", belonging to the field of substation construction. It includes a base plate body, with two sets of rotating components rotatably connected inside the base plate body. Connecting blocks are provided on both sides of each rotating component. A first compression spring is provided at the end of each connecting block away from the rotating component. Fixing blocks are provided on both sides of the base plate body away from the two sets of rotating components. A moving rod is slidably connected inside each fixing block. A first driving bevel gear is fixedly connected to the outside of the moving rod. A second driving bevel gear is meshed with the outside of the first driving bevel gear. A driving screw is fixedly connected inside the second driving bevel gear. A moving component is provided on the outside of the driving screw. A snap-fit ​​component is fixedly connected to the end of the moving component away from the driving screw. Compared with existing fixing components, this utility model improves the overall practicality of the fixing component through design.

[0010] Regarding key issues, compared to the aforementioned applications, this application further focuses on technologies such as precise prefabrication and winter construction. This application can better meet the needs of rapid, efficient, and low-cost construction of wind and solar power plant booster stations. Utility Model Content

[0011] The purpose of this invention is to provide a skid-mounted booster station, addressing the problems of long construction cycles and significant environmental impact associated with the current practice of using on-site casting and decentralized installation in some traditional booster station construction technologies. It also solves the shortcomings in adaptability to extremely cold environments, integration, and cost control.

[0012] The objective of this utility model can be achieved through the following technical solutions: A skid-mounted booster station includes a distribution skid, which includes a steel structure platform. The steel structure platform is connected to a concrete slab via pre-embedded locking components. The concrete slab is connected to a concrete support beam via pre-embedded locking components. The concrete support beam is connected to a concrete column, and the lower diameter of the concrete column is larger than its upper diameter.

[0013] In a further embodiment, a transformer is integrated at one end of the steel structure platform, and an oil pool is provided below the oil unloading port of the transformer.

[0014] In a further embodiment, an opening is provided on the concrete slab for the oil flowing out of the transformer's unloading port to enter the oil pool, and a drain outlet is provided at the bottom of the oil pool.

[0015] In a further embodiment, the concrete column is T-shaped.

[0016] In a further embodiment, the upper surface of the concrete slab is provided with a groove that fits into the bottom of the steel structure platform.

[0017] In a further embodiment, the concrete support beam is H-shaped.

[0018] In a further embodiment, a static var generator and a gas-insulated metal-enclosed switchgear are sequentially integrated within the steel structure platform.

[0019] In a further embodiment, the pre-embedded locking component is a bolt, the screw of which passes through the concrete slab and the steel structure platform in sequence and is connected to a nut. The nut of the bolt is pre-embedded in the concrete support beam.

[0020] In a further embodiment, the performance grade of the bolt is greater than or equal to 8.8.

[0021] In a further embodiment, a cable tray channel is connected below the steel structure platform, and the cable tray channel extends through the concrete slab and support beam to the underground cable duct; a grounding disconnect clamp is connected to one side of the concrete column.

[0022] The beneficial effects of this utility model are: This utility model provides a steel structure platform for the distribution skid, connecting the electrical equipment and concrete slabs on it. The platform is then installed on the ground via concrete slabs, concrete columns, and concrete support beams. These components can be prefabricated in a factory before installation in cold regions, saving assembly time. Compared to traditional on-site cross-installation, this not only improves installation efficiency but also ensures smooth construction. The prefabricated concrete slabs, columns, and support beams can be securely connected on-site with a small amount of concrete, and the prefabricated locking components ensure a stable connection to the steel structure platform. The steel structure platform also integrates the electrical equipment of the skid-mounted substation. Therefore, this skid-mounted substation has good integration, improving both construction speed and quality. Attached Figure Description

[0023] 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of a skid-mounted booster station according to an embodiment of this application; Figure 2 This is a plan view of the concrete support beam in an embodiment of this application; Figure 3 This is a plan view of the oil tank in an embodiment of this application.

[0025] In the diagram: 1. Distribution skid; 11. Steel structure platform; 2. Concrete slab; 3. Concrete support beam; 4. Embedded locking parts; 5. Concrete column; 6. Cable tray channel; 7. Oil tank; 71. Water collection tank; 72. Drainage outlet; 8. Transformer; 9. Grounding disconnect clamp; 10. Fence. Detailed Implementation

[0026] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0027] like Figure 1 As shown, a skid-mounted booster station includes a distribution skid 1, which includes a steel structure platform 11. The steel structure platform 11 is connected to a concrete slab 2 via a pre-embedded locking component 4. The concrete slab 2 is connected to a concrete support beam 3 via the pre-embedded locking component 4. The concrete support beam 3 is connected to a concrete column 5, and the lower diameter of the concrete column is larger than the upper diameter.

[0028] From bottom to top, the components are precast concrete columns 5, concrete support beams 3, concrete slabs 2, steel structure platform 11, and electrical equipment on the steel structure platform 11. High-strength pre-embedded locking components 4, such as pre-embedded bolts, are used to connect the precast concrete columns 5 and concrete support beams 3, the concrete support beams 3 and concrete slabs 2, and the concrete slabs 2 and electrical equipment skids.

[0029] In some embodiments, a transformer 8 is integrated at one end of the steel structure platform 11, and an oil tank 7 is provided below the oil discharge port of the transformer 8. The oil tank 7 can achieve oil-water separation, improve the safety of the transformer 8, and is made of low-temperature resistant composite material using a prefabrication method, forming an integrated structure with the entire skid-mounted booster station.

[0030] In some embodiments, the concrete slab 2 has an opening for oil flowing from the oil discharge port of the transformer 8 to enter the oil sump 7, such as... Figure 3 As shown, the bottom of the oil tank 7 is provided with a drain outlet 72, and a water collection tank 71 can also be provided inside the oil tank 7. Water after oil-water separation is introduced into the water collection tank 71 through a pipe to achieve oil-water separation and to treat the lubricating oil in the transformer 8 accident.

[0031] In some embodiments, the concrete columns are T-shaped. This allows the columns to be stably fixed to the ground using a small amount of concrete, preventing them from tipping over.

[0032] In some embodiments, the upper surface of the concrete slab 2 is provided with a groove that fits into the bottom of the steel structure platform 11. This further stabilizes and supports the steel structure platform 11, facilitates installation, and prevents displacement.

[0033] In some embodiments, such as Figure 2 As shown, the concrete support beam 3 is H-shaped. The H-shaped structure has high load-bearing strength and is similar to a ladder shape. Bolt holes are reserved at the top and high-strength bolts are pre-embedded at the bottom, which facilitates the installation of the aforementioned power distribution skid.

[0034] In some embodiments, a static var generator (SVG) and a gas-insulated metal-enclosed switchgear (GIS) are sequentially integrated within the steel structure platform 11. The SVG uses power electronics technology to adjust the phase difference between current and voltage in real time, providing or absorbing reactive power to maintain system power balance; the GIS uses SF6 gas insulation to achieve rapid switching of high-voltage circuits and is used for switching operations in substations or transmission lines.

[0035] In some embodiments, the pre-embedded locking element 4 is a bolt, whose thread passes through the concrete slab 2 and the steel structure platform 11 in sequence and then connects to the nut. The nut of the bolt is pre-embedded in the concrete support beam 3. This facilitates the fixing of the steel structure platform 11, the concrete slab 2 and the concrete support beam 3.

[0036] In some embodiments, the bolts have a performance grade of 8.8 or higher. This ensures the strength of the connection.

[0037] In some embodiments, a cable tray channel 6 is connected below the steel structure platform 11. The cable tray channel 6 passes through the concrete slab 2 and the support beam, extending to the underground cable duct. A grounding disconnect clamp 9 is connected to one side of the concrete column. Fences 10 are installed on both sides of the precast slab, and the fences 10 are connected to both ends of the precast slab by precast locking components. The fences 10 prevent accidental entry into the distribution skid area and damage. The cable tray channel 6 is located below the steel structure platform 11 and is used for centralized cable arrangement. Its internal cable trays and other facilities adopt a precast modular design for easy on-site installation.

[0038] In its implementation, this application may be carried out using the following steps: 1. BIM 3D Modeling Design: Utilizing BIM 3D modeling technology, detailed 3D models were created for the civil engineering components of the substation (concrete slabs 2, concrete support beams 3, concrete columns 5, steel structure platform 11, cable tray channels 6, and oil tank for oil-water separation accidents 7) and electrical components (distribution skids 1, transformers 8, SVG, GIS, etc.). This allowed for precise planning of the dimensions, locations, and connection methods of each part, enabling early identification and optimization of design issues. This ensured the accuracy and compatibility of prefabricated components reached millimeter-level precision, providing guidance for prefabrication and on-site installation. The precise planning of the dimensions, locations, and connection methods through the 3D model ensured the accuracy and compatibility of prefabricated components reached millimeter-level precision, providing a solid guarantee for rapid on-site installation.

[0039] 2. Factory Prefabrication: Based on the design scheme determined by BIM 3D modeling, the prefabrication of various components and equipment is carried out in the factory. Concrete slabs 2 and concrete support beams 3 and concrete columns 5 are cast to precise dimensions and high-strength bolt sleeves are pre-embedded; the components of the steel structure platform 11 are standardized in design, cutting, welding and anti-corrosion treatment to form modular components; the skid-mounted modules of electrical equipment such as power distribution skids 1, SVG and GIS are installed, wired and debugged in the factory; the cable trays and other facilities in the cable tray channel 6 are prefabricated and pre-assembled with relevant parts of the steel structure platform 11; the oil-water separation accident oil tank 7 is prefabricated as a whole according to the design dimensions using low-temperature resistant composite materials, and the internal oil-water separation device and related pipeline interfaces are installed.

[0040] 3. On-site Installation: Prefabricated components and equipment are transported to the project site. First, concrete slabs 2, concrete support beams 3, and concrete columns 5 are installed, hoisted to designated positions, and mechanically connected to the steel structure platform 11 using pre-embedded high-strength bolt sleeves, ensuring precise leveling. Then, the steel structure platform 11 is installed sequentially, assembling modular components according to pre-marked positions and connection methods, and secured with high-strength bolts. Next, the distribution skid 1, transformer 8, SVG, and GIS skid modules are hoisted to designated positions on the steel structure platform 11, connected with high-strength bolts, and cables are quickly connected. After completing the electrical equipment installation, cables are laid in the cable tray channel 6. Finally, the oil-water separation emergency oil tank 7 is installed and connected to the steel structure platform 11 and related pipelines. During installation, a BIM 3D model is used for on-site guidance, and installation positions and connections are checked in real time.

[0041] Among them, the electrical prefabricated modules (100% factory pre-assembly rate): electrical equipment such as distribution skid 1, transformer 8, SVG (Static Var Generator), and GIS (Gas Insulated Metal Enclosed Switchgear) are pre-assembled in the factory; the civil engineering prefabricated modules (precision control): the center position deviation of concrete column 5 is ≤1mm. The position accuracy of bolt hole group in steel structure platform 11 is ≤0.8mm. The oil tank 7 uses 304 stainless steel inner liner; the bolt connection uses M24 high-strength bolts (tensile strength 1000MPa); the electrical interface uses plug-in cable connectors with alignment guide devices; The skid-mounted substation mainly includes electrical equipment skids such as distribution skid 1, transformer 8, SVG (Static Var Generator), and GIS (Gas Insulated Metal Enclosed Switchgear), as well as civil engineering components such as concrete slab foundation 2 and concrete support beam 3, steel structure platform 11, cable interlayer and oil-water separation accident oil tank 7.

[0042] The power distribution skid 1 adopts a modular design, integrating various power distribution equipment. The modules use standardized interfaces, which facilitates factory prefabrication and rapid on-site assembly.

[0043] Transformer 8 is a compact type suitable for skid-mounted structures, installed on the aforementioned steel structure platform 11, and securely connected to the steel structure platform 11 using high-strength bolts. The SVG and GIS equipment are integrated into independent skid-mounted modules, which are quickly connected to each other via cables, reducing on-site wiring work.

[0044] Prefabrication and assembly process; Design phase (20 days): BIM model establishment and output of prefabrication unit processing drawings.

[0045] Prefabrication stage (30 days): Steam curing of 5 concrete columns, anti-corrosion treatment of steel structure, and commissioning of electrical modules; On-site installation (15 days): GPS positioning of 5 concrete columns, assembly of 11 steel structure platforms, hoisting of electrical modules, rapid cable connection, and system commissioning.

[0046] During implementation, electrical equipment integration and BIM 3D modeling technologies are combined to achieve deep coupling and seamless integration of civil engineering and electrical processes. BIM technology is used to achieve millimeter-level precision in prefabricated components, ensuring accurate and efficient on-site installation. The use of low-temperature resistant composite materials combined with dry assembly processes allows for normal construction in environments as low as -25℃, overcoming traditional limitations of low-temperature construction. The modular structure design and installation adopted in this application increase factory prefabrication rates, reduce on-site cross-operations, lower costs, and improve installation efficiency.

[0047] Shorten the construction cycle: Through intelligent prefabrication and modular on-site installation, the traditional 3-6 month construction cycle can be shortened by more than 80%, requiring only 0.6-1.2 months, improving project construction efficiency and enabling wind and solar power stations to be put into operation faster.

[0048] Reduced overall costs: With over 90% prefabrication rate in the factory, on-site cross-operations are reduced, avoiding waste of labor, materials, and equipment, resulting in a 40% reduction in overall costs. Modular design reduces on-site processing losses, increasing material utilization by 35%. Shorter construction periods release tied-up capital, allowing individual projects to return to positive cash flow 4.5 months earlier.

[0049] Breaking through the limitations of winter construction: By adopting low-temperature resistant composite materials combined with dry assembly technology, normal construction can be carried out in extremely cold environments of -25℃, realizing the innovation of "no wet operation" in winter construction and ensuring the ability to carry out continuous construction throughout the year in cold northern regions.

[0050] Enhanced standardization: Modular design addresses the lack of standardization, increases installation efficiency by 3 times, facilitates quality control and management, and improves the overall quality and reliability of booster station construction.

[0051] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0052] 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 skid-mounted booster station, characterized in that, The device includes a power distribution skid, which includes a steel structure platform. The steel structure platform is connected to a concrete slab via pre-embedded locking components. The concrete slab is connected to a concrete support beam via pre-embedded locking components. The concrete support beam is connected to a concrete column, and the lower diameter of the concrete column is larger than the upper diameter.

2. The skid-mounted booster station according to claim 1, characterized in that, A transformer is integrated at one end of the steel structure platform, and an oil tank is provided below the oil unloading port of the transformer.

3. A skid-mounted booster station according to claim 2, characterized in that, An opening is provided on the concrete slab to allow oil flowing from the transformer's unloading port to enter the oil pool, and a drain outlet is provided at the bottom of the oil pool.

4. A skid-mounted booster station according to claim 1, characterized in that, The concrete columns are T-shaped.

5. A skid-mounted booster station according to claim 1, characterized in that, The upper surface of the concrete slab is provided with a groove that fits into the bottom of the steel structure platform.

6. A skid-mounted booster station according to claim 1, characterized in that, The concrete support beam is H-shaped.

7. A skid-mounted booster station according to claim 1, characterized in that, The steel structure platform integrates a static var generator and a gas-insulated metal-enclosed switchgear in sequence.

8. A skid-mounted booster station according to claim 1, characterized in that, The pre-embedded locking component is a bolt, whose screw passes through the concrete slab and the steel structure platform in sequence and is connected to the nut. The nut of the bolt is pre-embedded in the concrete support beam.

9. A skid-mounted booster station according to claim 8, characterized in that, The performance grade of the bolt is greater than or equal to 8.

8.

10. A skid-mounted booster station according to claim 1, characterized in that, A cable tray channel is connected below the steel structure platform. The cable tray channel extends through the concrete slab and support beam to the underground cable duct. A grounding disconnect clamp is connected to one side of the concrete column.

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