Device for improving flood prevention capacity of transformer substation

Abstract

A device for improving flood prevention capacity of a transformer substation is characterized in that a partitioned miniaturized prefabricated cabin is divided into a 110kV power distribution device cabin, at least one 10kV power distribution device cabin, at least one 10kV capacitor cabin, a 10kV substation transformer and low-voltage power distribution cabin, an integrated finished product fire pump station, a secondary equipment cabin, a storage battery cabin and a data tool cabin according to classification; wherein the 110kV GIS equipment is integrally arranged in the 110kV power distribution device cabin, the 10kV station transformer and low-voltage power distribution cabinet is intensively arranged in the 10kV station transformer and low-voltage power distribution cabin, the secondary equipment is intensively arranged in the secondary equipment cabin, and the storage battery cabin and the secondary equipment cabin are arranged in a combined manner. According to the utility model, the equipment and buildings of the transformer substation are decomposed in a building block and modularization manner and are arranged in a block and interval manner, and except the main transformer, other equipment are arranged in a prefabricated cabin manner, so that the flood prevention capability is effectively improved.

Description

Technical Field

[0001] This utility model relates to the analysis of flood control technology for substations, specifically the application research of flood control technology methods applicable to substations with voltage levels of 110kV and below. Background Technology

[0002] The most common flood control technology for substations is a flood control system primarily based on containment. This system consists of flood walls, floodgates, drainage pipes and facilities, and water level monitoring sensors. When the water level monitoring sensors detect a risk of flooding at the substation, the flood walls and floodgates prevent floodwater from entering the substation, while the drainage pipes and facilities drain accumulated water from inside the substation. The flood walls and floodgates are positioned above the historical highest flood level with a margin of safety. Alternatively, a combination of external protective walls, moats, and slope protection can be used to prevent flooding outside the substation. The overall strategy is to isolate floodwater externally through barriers and blockages, while internally using pumping to prevent flooding.

[0003] The proposed site for a substation is located close to the Huai River. The elevation of the municipal road to the west of the site is 27.98m to 30.0m, and the elevation of newly built residential areas and other roads around the site is generally about 0.5m higher than the municipal road. During a 50-year return period rainstorm, the flood level at the site is expected to be 31.21m; during a 100-year return period rainstorm, the flood level is expected to be 31.54m. Designing flood defenses based on these water levels would result in the substation site being 1.5 to 3.5m higher than the municipal road. While the flood control solution of raising the site and constructing a flood wall is feasible, the site's proximity to the planned West Lake scenic area makes the excessively high site, flood wall, and surrounding environment incompatible, resulting in an aesthetically unappealing substation building.

[0004] Traditional flood control solutions that rely on water barriers and barriers cannot address the issue of the substation's compatibility with its surrounding environment; therefore, new flood control solutions need to be considered. Utility Model Content

[0005] This utility model is mainly used to improve the flood control capability of substations, and provides a device for improving the flood control capability of substations.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A substation flood control capacity enhancement device includes a substation gate, modular miniaturized prefabricated cabins located around the perimeter of the substation, and transformer equipment located in the middle of the substation. The modular miniaturized prefabricated cabins and the transformer equipment are separated by a road.

[0008] The modular, miniaturized prefabricated modules are categorized into a 110kV power distribution module, at least one 10kV power distribution module, at least one 10kV capacitor module, a 10kV substation transformer and low-voltage power distribution module, an integrated prefabricated fire pump station, a secondary equipment module, a battery module, and a data and tool module. The 110kV GIS equipment is centrally located within the 110kV power distribution module. The 10kV substation transformer and low-voltage power distribution cabinet are centrally located within the 10kV substation transformer and low-voltage power distribution module. Secondary equipment is centrally located within the secondary equipment module. The battery module and secondary equipment module are combined.

[0009] The substation gate is made of high-strength wrought iron grille.

[0010] Each modular, miniaturized prefabricated cabin includes a cabin body, which is set on a controllable lifting platform. A flexible connection device is fixedly connected to the bottom of the cabin body. The flexible connection device fixes the cable, and the cable is laid in an S-shape to allow for lifting slack.

[0011] A level monitoring system is installed on the controllable lifting platform.

[0012] This utility model, employing the above-described technical solution, decomposes the equipment and buildings of the substation into modular units, arranging them in sections and zones. Except for the main transformer, all other equipment is arranged in prefabricated cabins. These prefabricated cabins are positioned on a lifting platform and rise and fall with the platform. Electrical equipment is flexibly connected via cables, with the connecting cables having sufficient lifting capacity. High-sealing transformers are used, and the interfaces of the transformer and other equipment are all located at elevated positions. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the substation layout according to this utility model.

[0014] Figure 2 This is a schematic diagram of the cabin and platform layout.

[0015] Figure 3 To improve the platform control system topology diagram. Detailed Implementation

[0016] The technical methods of this 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 this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0017] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are 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.

[0018] Based on a 50-year flood event, the site in this case may be flooded, but there is no risk of flood peak erosion. Flood prevention is carried out by combining raising the site and increasing the height of the equipment.

[0019] Substation equipment and structures are categorized, and different flood control solutions are adopted for each category. Substation gates and walls should be integrated with the surrounding environment to prevent collapse due to flood impact. Transformers should be fixedly installed, and flood control is achieved through raising the equipment mounting foundation, increasing submersion operating capacity, and using high-level interfaces. Other equipment is housed in prefabricated compartments, which are installed on lifting platforms, thus providing flood protection by raising their height.

[0020] According to the above requirements, such as Figure 1 As shown, a substation flood control capacity enhancement device includes a substation gate 1, a modular miniaturized prefabricated cabin located around the perimeter of the substation, and a transformer device 2 located in the middle of the substation. The modular miniaturized prefabricated cabin and the transformer device 2 are separated by a road 3.

[0021] The main gate of the substation is a high-strength wrought iron grille gate. The surrounding walls of the substation are made of concrete and are 0.5 meters above the road surface, with a hollowed-out artistic fence.

[0022] The elevation reference value for Road 3 is 30.0 meters. Within an acceptable range, the station site will be raised, and the road elevation of the station site will be set at 30.5 meters to be consistent with the surrounding residential areas.

[0023] Furthermore, the foundation of transformer equipment 2 is 0.5 meters above the road surface, the transformer has the ability to operate normally even when submerged in water up to 0.5 meters, and the electrical interfaces of the transformer are arranged in a high position.

[0024] Furthermore, the equipment is categorized. The modular, miniaturized prefabricated modules are divided into four sections: 110kV power distribution module 4, at least one 10kV power distribution module 5, at least one 10kV capacitor module 6, 10kV substation transformer and low-voltage power distribution module 7, integrated prefabricated fire pump station 8, secondary equipment module 9, battery module 10, and data and tool module 11. The 110kV GIS equipment is entirely housed in the 110kV power distribution module 4; the 10kV substation transformer and low-voltage power distribution cabinet are centrally located in the 10kV substation transformer and low-voltage power distribution module 7; secondary equipment is centrally located in the secondary equipment module 9; and the battery module 10 and secondary equipment module 9 are combined. Duty, work, tools, and data are combined in the data and tool module 11.

[0025] This utility model adopts a modular, miniaturized prefabricated cabin, which is conducive to equipment transportation, installation, and dismantling, facilitates rapid station construction, and promotes the implementation of flood control improvement schemes.

[0026] like Figure 2 As shown, each modular miniaturized prefabricated cabin includes a cabin 12, which is mounted on a controllable lifting platform 13, employing existing technology. A flexible connecting device 14 is fixedly connected to the bottom of the cabin 12. The flexible connecting device 14 secures cables, which are laid in an S-shape with sufficient lifting slack. The cables are limited by progressively raised limit rods, and the cables are externally fixed by the flexible connecting device 14. The flexible connecting device 14 rises with the controllable lifting platform 13, automatically straightening when it breaks free from the limit rods. Throughout the entire process, the flexible connecting device 14 bears the displacement force, preventing damage to the cables. The cables serve as the electrical connection cables for each modular miniaturized prefabricated cabin, with sufficient slack on each side, ensuring that the lifting processes of each platform do not interfere with each other.

[0027] Thus, in this utility model, the controllable lifting platform 13 adopts an upper and lower layout, with the transmission part at the bottom and the motor and other electrical equipment at the top, rising together with the controllable lifting platform 13. The controllable lifting platform 13 has an anti-tipping function, equipped with a level monitoring system to ensure the levelness of the platform during operation. When the tilt of the controllable lifting platform 13 reaches a set value, the operation stops to prevent the platform from tipping over.

[0028] Even better, the platforms used to lay out the prefabricated modules are all 0.5 meters above the road surface, and the platforms have the ability to be raised by 1 meter.

[0029] like Figure 3 As shown, the platform has local / remote / automatic control functions. The platform control system consists of a control host, network switch, secondary safety protection equipment, meteorological server, communication interface equipment, high-precision water level detector, and platform receiving terminal. Control communication uses an RS485 interface and shielded twisted-pair cable with reserved extension allowance, serving as a flexible conductor with displacement capability.

[0030] The platform control system needs to meet the relevant requirements of power safety zoning and secondary safety protection, and deploy lateral isolation devices such as directional isolation devices and firewalls.

[0031] When the lifting platform control system is in automatic control mode, it receives weather forecasts from the internet via a meteorological server. The control host then comprehensively determines whether the lifting platform needs to take action. If action is required, the lifting action value is transmitted to the receiving terminals of each platform via communication lines. The action value is then fine-tuned in real time using water level detectors, allowing for proactive prediction and action to ensure the platform remains at a safe elevation. After the platform is lifted, if the weather improves and the original elevation is deemed safe, the platform descends to its normal operating elevation.

[0032] The platform control system can interact with remote locations (such as power dispatching terminals) through the substation monitoring system to transmit information such as water level, platform location, and platform working status. When in remote control mode, it can receive remote control commands to perform platform lifting or lowering actions.

[0033] When the lifting platform control system is in manual control mode, the host computer can manually issue setting action commands or zone action commands, or the operator can manually control each independent platform.

[0034] Regardless of the control method used, when the action reaches the set operating limit alarm position, the platform's movement speed is reduced; when the operating limit stop position is reached, causing the limit switch to activate, the platform's movement is stopped.

[0035] In addition to flood prevention, the equipment using the above-mentioned flood control methods is also capable of rapid disassembly and transportation, highly mobile, and can be urgently moved away in special circumstances to ensure asset safety.

Claims

1. A device for enhancing the flood control capacity of a substation, characterized in that: It includes the substation gate (1), the modular miniaturized prefabricated cabins located around the substation, and the transformer equipment (2) located in the middle of the substation. The modular miniaturized prefabricated cabins and the transformer equipment (2) are separated by a road (3). According to the classification, the modular miniaturized prefabricated cabin is divided into a 110kV power distribution device cabin (4), at least one 10 kV power distribution device cabin (5), at least one 10 kV capacitor cabin (6), 10 kV station transformer and low voltage power distribution cabin (7), integrated prefabricated fire pump station (8), secondary equipment cabin (9), battery cabin (10) and data tool cabin (11); among them, the 110kV GIS equipment is arranged in the 110kV power distribution device cabin (4), the 10kV station transformer and low voltage power distribution cabinet are centrally arranged in the 10 kV station transformer and low voltage power distribution cabin (7), the secondary equipment is centrally arranged in the secondary equipment cabin (9), and the battery cabin (10) and the secondary equipment cabin (9) are arranged together.

2. The substation flood control capacity enhancement device according to claim 1, characterized in that: The substation gate (1) adopts a high-strength wrought iron grille gate.

3. The substation flood control capacity enhancement device according to claim 1, characterized in that: Each modular miniaturized prefabricated cabin includes a cabin (12), which is set on a controllable lifting platform (13). A flexible connection device (14) is fixedly connected to the bottom of the cabin (12). The flexible connection device (14) fixes the cable, and the cable is laid in an S-shape with a reserved lifting margin.

4. The substation flood control capacity enhancement device according to claim 1, characterized in that: A horizontal monitoring system is installed on the controllable lifting platform (13).

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