Modular scalable tiled mobile substation and method of use thereof

Abstract

The application relates to the technical field of mobile transformer substations, and discloses a modular and expandable spliced mobile transformer substation which comprises a bearing base, the top surface of the bearing base is provided with independent function cabin modules and a control cabin module, the top surface of the independent function cabin modules is provided with a rain shelter, the outer side surface of the independent function cabin modules is provided with cabin doors and threaded bases, the inside of the threaded bases is provided with fixing bolts, the inner side surface of the independent function cabin modules is provided with positioning bushings, the inside of the positioning bushings is provided with positioning pin shafts, and the inside of the bearing base is provided with ventilation pipes. The connecting structure of the threaded bases and the fixing bolts can guarantee that the spliced positioning of the function cabins is accurate, the connection is firm and sealed, the overall equipment anti-seismic, anti-deformation and outdoor environment protection capabilities are improved, the on-site assembly, disassembly, transportation and maintenance operation process is simplified, each independent module can be separately disassembled and maintained, and the overall equipment downtime during maintenance is reduced.

Description

Technical Field

[0001] This invention relates to the field of mobile substation technology, specifically to a modular and scalable splicing mobile substation and its usage method. Background Technology

[0002] Mobile substations, as core equipment for temporary power supply, are widely used in emergency rescue and disaster relief, substation equipment upgrades and overhauls, load transfer, and large-scale engineering construction. They are characterized by high integration, fast construction speed, and easy transportation. Currently, the mainstream mobile substations in the industry are mainly divided into vehicle-mounted and skid-mounted types. Vehicle-mounted substations integrate equipment onto semi-trailer trucks, which is convenient for transportation, but their voltage level and capacity are limited, making it difficult to meet the regular capacity requirements of urban power grids. Skid-mounted substations are mostly fixed structures with low modularity, cumbersome assembly and disassembly, and insufficient expansion capabilities. They cannot flexibly add or remove functional modules according to actual power supply needs. At the same time, the existing splicing structure has poor stability and insufficient seismic and shock resistance, making it difficult to adapt to complex outdoor operating environments.

[0003] According to a search, Chinese patent document CN116505415A discloses a modular mobile prefabricated substation. By setting up docking frames and fixing frames, the docking frames and fixing frames work together to reinforce the assembly of several sets of prefabricated boxes, improving the structural strength of the assembled modular mobile prefabricated substation. However, in actual use, this device often uses simple bolt connections, resulting in low positioning accuracy, low splicing efficiency, and poor sealing between modules, making it susceptible to external dust and rainwater corrosion, affecting the reliability of equipment operation. Furthermore, the device lacks a convenient fixing structure, making deployment and relocation complex and unable to achieve rapid mobile deployment and operation. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a modular and scalable mobile substation with advantages such as high modularity, rapid assembly, improved structural stability, and ease of movement, thus solving the aforementioned technical problems.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention provides the following technical solution: a modular and scalable splicing mobile substation, comprising a support base, an independent functional compartment module and a control compartment module mounted on the top surface of the support base, a rain shelter mounted on the top surface of the independent functional compartment module, a door and a threaded base provided on the outer side of the independent functional compartment module, a fixing bolt installed inside the threaded base, a positioning bushing provided on the inner side of the independent functional compartment module, a positioning pin installed inside the positioning bushing, a ventilation pipe fixedly installed inside the support base, a diversion pipe fixedly connected to the outer side of the ventilation pipe, and a first dustproof net fixedly installed at the end of the diversion pipe away from the ventilation pipe.

[0008] Preferably, the number of the independent functional compartment module, the compartment door, the threaded base and the fixing bolts are all provided in multiples, and the multiple fixing bolts are all threadedly connected to the inside of the support base.

[0009] Through the above technical solutions, multiple independent functional modules can be independently integrated and manufactured to accommodate different functional zones such as high voltage, low voltage, substation, and control. This enables standardized mass production, reduces unit manufacturing costs, and allows for flexible addition, reduction, and combination of functional modules based on site load and power supply requirements, adapting to expansion and modification needs under different operating conditions. The connection structure with threaded bases and fixing bolts ensures accurate positioning and secure sealing of each functional module, improving the overall equipment's resistance to seismicity, deformation, and outdoor environmental protection. It also simplifies on-site assembly, disassembly, transportation, and maintenance processes. Each independent module can be disassembled and maintained separately, reducing overall equipment downtime for maintenance and significantly improving the installation efficiency, operation and maintenance convenience, and scenario adaptability of mobile substations.

[0010] Preferably, the bottom surface of each of the multiple independent functional compartment modules is provided with a cylindrical pin, and the top surface of the support base has multiple positioning holes, with the cylindrical pins installed inside the positioning holes.

[0011] Through the above technical solutions, rapid alignment, precise positioning, and lateral misalignment constraints can be achieved when assembling multiple independent functional modules. This effectively eliminates module installation gaps and offset deviations, avoids problems such as positional misalignment and uneven splicing gaps after assembly, and improves overall splicing accuracy and structural coaxiality. At the same time, the cylindrical short pins and positioning holes can share the shear load of the fixing bolts, enhance the stability of the overall connection, anti-slip capability, and structural rigidity, reduce the deformation effects caused by vibration, wind, and foundation settlement under outdoor conditions, and simplify the on-site assembly and alignment process, reducing installation difficulty.

[0012] Preferably, the number of positioning bushings is set to multiple, the number of positioning pins is set to three, and the three positioning pins are all connected through the interior of the multiple positioning bushings.

[0013] Through the above technical solution, when the positioning pin is installed through the inside of the positioning bushing, it can not only achieve rapid and accurate docking of each independent functional module, effectively limit the lateral and longitudinal displacement and angular offset between modules, and ensure the coaxiality and overall flatness of adjacent modules after splicing, avoiding module misalignment and joint deformation caused by operating vibration and external pressure; in addition, the device can also strengthen the structural strength and overall rigidity of the module splicing, improve the overall stability of the equipment and its adaptability to complex outdoor working conditions. At the same time, the plug-in positioning structure has low wear and is easy to disassemble and assemble, which facilitates the later disassembly, inspection, replacement, maintenance and reorganization expansion of modules, reduces the difficulty of operation and maintenance, and extends the overall service life of the equipment.

[0014] Preferably, the interior of each of the plurality of positioning bushings is equipped with an anti-slip pad, and the outer end face of each of the three positioning pins is provided with a pull-out groove.

[0015] Through the above technical solutions, the anti-slip pad can increase the contact friction between the positioning pin and the positioning bushing, effectively preventing the positioning pin from loosening and slipping under equipment vibration and external disturbance, eliminating inter-module movement and abnormal noise, and improving the locking stability and sealing protection effect of the splicing connection. Afterwards, the pull-out slot can provide a reliable force point for the positioning pin to be disassembled and installed, and the pin can be quickly pulled out and installed without the need for complicated special tools. This greatly reduces the operational difficulty of disassembling, repairing, reassembling and expanding the functional compartment modules, improves disassembly and assembly efficiency, and avoids damage to parts caused by knocking and bumping during disassembly and assembly, ensuring the accuracy and integrity of the connection structure for long-term use.

[0016] Preferably, multiple quick-locking components are installed on the outer surfaces of the multiple independent functional compartment modules, and the quick-locking components include a locking body and a fixing seat.

[0017] The above technical solution enables rapid locking and fastening of modules after precise positioning and docking, quickly completing the rigid connection between adjacent functional compartments. This replaces the traditional, cumbersome method of fastening with multiple bolts, significantly shortening on-site assembly time and improving assembly efficiency. The structure can tightly fit and lock the end faces of adjacent compartments, effectively constraining relative displacement and sway between modules, enhancing the overall splicing strength and structural integrity, and resisting the loosening risks caused by outdoor wind and equipment operating vibration. At the same time, the unlocking operation is simple and labor-saving, facilitating rapid disassembly, relocation for maintenance, and flexible expansion and combination of modules. It adapts to the needs of temporary deployment, relocation and reuse, and on-demand expansion of mobile substations, improving the overall environmental adaptability and ease of operation and maintenance of the equipment.

[0018] Preferably, each of the multiple independent functional compartment modules has a sealing groove and a sealing strip on both sides, and the outer surfaces of the multiple independent functional compartment modules are all equipped with side shielding strips.

[0019] Through the above technical solution, when two adjacent modules are spliced ​​and locked together, the sealing strip will be squeezed and deformed, effectively sealing the gaps between the compartments and preventing rainwater, dust, moisture, sand, and condensation from entering the equipment. This prevents electrical components from getting damp and corroding, accumulating dust, and short-circuiting. The side shielding strips can form a secondary protective barrier, covering the exposed gaps between the splices, reducing aging from sunlight and wear from external impacts, further improving the overall dustproof, waterproof, moisture-proof, and heat-insulating performance, improving the internal operating environment of the compartment, reducing the probability of failure, extending the service life of electrical equipment and the compartment structure, and ensuring the long-term stable and safe operation of the mobile substation in complex and harsh outdoor environments.

[0020] Preferably, there are multiple diversion pipes and multiple first dustproof nets, and multiple second dustproof nets are installed on the top of the rain shelter, and electric control valves are installed on the outer sides of multiple diversion pipes.

[0021] The above technical solution connects ventilation ducts to external cooling fans and other equipment. Through the combined ventilation ducts and distribution pipes, a heat dissipation structure can achieve independent ventilation and heat dissipation in different zones based on the heat generation differences of electrical equipment in each compartment. This rationally distributes airflow, balances the temperature inside the compartment, avoids localized heat accumulation and high temperatures, and ensures the stable operation of various electrical components. The combination of a first and second dustproof net effectively blocks external dust, insects, and debris from entering the compartment, preventing components from accumulating dust, aging, and deteriorating insulation performance. The electrically controlled valve intelligently controls the on / off state of the pipeline and the airflow, automatically adjusting the heat dissipation intensity according to ambient temperature and equipment load. In low-temperature and humid conditions, the pipeline can be closed to reduce moisture intrusion. This solution provides multiple protections including heat dissipation, dust prevention, and moisture prevention, adapting to varying outdoor environments, reducing equipment failure rates, and extending overall service life.

[0022] This invention also provides a method for using a modular and scalable spliced ​​mobile substation, which is carried out according to the following steps: S1. Hoist each independent functional module to the corresponding installation position on the support base, align the positioning bushings on the inner sides of adjacent independent functional modules, and install the positioning pin through the inside of the corresponding positioning bushing to limit the lateral displacement, longitudinal displacement and angular offset between adjacent independent functional modules. S2. After the positioning pin passes through the positioning bushing, the anti-slip pad inside the positioning bushing contacts the outer periphery of the positioning pin. The anti-slip pad increases the contact friction between the positioning pin and the positioning bushing, thereby limiting the positioning pin from loosening and slipping under equipment vibration and external disturbance. S3. After the adjacent independent functional compartment modules are positioned, operate multiple quick-locking components to lock the main body of the lock with the fixed seat, thereby pressing and connecting the end faces of the adjacent independent functional compartment modules and restraining the relative displacement and shaking between the adjacent independent functional compartment modules. S4. After the adjacent independent functional compartment modules are locked, the sealing strip enters the corresponding sealing groove and is deformed by pressure to seal the splicing gap between adjacent compartments. At the same time, the exposed splicing gap is covered by the side shielding strip, forming a barrier and protection against rainwater, dust, moisture, wind and sand and condensation.

[0023] Compared with existing technologies, this invention provides a modular and scalable spliced ​​mobile substation and its usage method, which has the following beneficial effects: 1. This invention, by installing a positioning pin through the inside of the positioning bushing, not only enables rapid and precise docking of each independent functional module, but also effectively limits lateral and longitudinal displacement and angular offset between modules, ensuring coaxiality and overall flatness after adjacent modules are spliced, and preventing module misalignment and joint deformation caused by operating vibration and external pressure; the anti-slip pad increases the contact friction between the positioning pin and the positioning bushing, effectively preventing the positioning pin from loosening and slipping under equipment operating vibration and external disturbance, eliminating inter-module movement and abnormal noise, and improving the locking stability and sealing protection effect at the splicing connection. 2. This invention enables rapid rigid connection of adjacent functional compartments through multiple quick-locking components, replacing the traditional cumbersome method of multiple bolt fastenings, significantly shortening on-site assembly time and improving assembly efficiency. This structure can tightly fit and lock the end faces of adjacent compartments, effectively constraining relative displacement and sway between modules, enhancing the overall splicing firmness and structural integrity, resisting the loosening risks caused by outdoor wind and equipment operating vibration, while the unlocking operation is simple and labor-saving, facilitating rapid disassembly, relocation for maintenance, and flexible expansion and combination of modules, adapting to the needs of temporary deployment, relocation and reuse, and on-demand expansion of mobile substations, improving the overall environmental adaptability and maintenance convenience of the equipment. Attached Figure Description

[0024] Figure 1 This is a three-dimensional schematic diagram of the structure of the present invention;

[0025] Figure 2 This is a three-dimensional cross-sectional schematic diagram of the structural support base and other parts of the present invention;

[0026] Figure 3 This is a left-side cross-sectional view of the structural support base and other components of the present invention;

[0027] Figure 4 This is a top sectional view of the independent functional cabin module and other parts of the present invention.

[0028] Figure 5 This is a three-dimensional cross-sectional schematic diagram of the structural positioning bushing and other parts of the present invention;

[0029] Figure 6 This is a three-dimensional cross-sectional schematic diagram of the sealing strip and other parts of the present invention;

[0030] Figure 7 This is a three-dimensional cross-sectional schematic diagram of the ventilation pipe and other parts of the present invention;

[0031] Figure 8 This is a right-side cross-sectional view of the ventilation pipe and other components of the present invention.

[0032] The components include: 1. Support base; 2. Independent functional compartment module; 3. Control compartment module; 4. Rain shelter; 5. Door; 6. Threaded base; 7. Fixing bolt; 8. Positioning bushing; 9. Positioning pin; 10. Ventilation duct; 11. Diverter duct; 12. First dustproof net; 13. Short cylindrical pin; 14. Positioning hole; 15. Anti-slip pad; 16. Pull-out slot; 17. Quick-locking assembly; 18. Locking body; 19. Fixing buckle; 20. Sealing groove; 21. Sealing strip; 22. Side shielding strip; 23. Second dustproof net; 24. Electrically controlled valve. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Please see Figure 1-8 A modular and scalable splicing mobile substation includes a support base 1. An independent functional compartment module 2 and a control compartment module 3 are installed on the top surface of the support base 1. A rain shelter 4 is installed on the top surface of the independent functional compartment module 2. A door 5 and a threaded base 6 are provided on the outer side of the independent functional compartment module 2. A fixing bolt 7 is installed inside the threaded base 6. A positioning bushing 8 is provided on the inner side of the independent functional compartment module 2. A positioning pin 9 is installed inside the positioning bushing 8. A ventilation pipe 10 is fixedly installed inside the support base 1. A diversion pipe 11 is fixedly connected to the outer side of the ventilation pipe 10. A first dustproof net 12 is fixedly installed at the end of the diversion pipe 11 away from the ventilation pipe 10.

[0035] Specifically, multiple independent functional module 2, hatch 5, threaded base 6, and fixing bolt 7 are provided, and all fixing bolts 7 are threadedly connected to the inside of the bearing base 1. The advantages are that this structure allows for the independent integration and manufacturing of different functional zones such as high voltage, low voltage, substation, and control, enabling standardized mass production, reducing unit manufacturing costs, and allowing for flexible addition, reduction, and combination of functional modules according to site load and power supply requirements, adapting to expansion and modification needs under different working conditions. The connection structure with threaded base 6 and fixing bolt 7 ensures precise positioning and secure sealing of each functional module, improving the overall equipment's earthquake resistance, deformation resistance, and outdoor environmental protection capabilities. It also simplifies on-site assembly, disassembly, transportation, and maintenance processes. Each independent module can be disassembled and maintained individually, reducing overall equipment downtime for maintenance and significantly improving the installation efficiency, operation and maintenance convenience, and scenario adaptability of the mobile substation.

[0036] Specifically, each of the multiple independent functional compartment modules 2 has a cylindrical short pin 13 on its bottom surface, and the top surface of the supporting base 1 has multiple positioning holes 14, with the cylindrical short pin 13 corresponding to the interior of the positioning holes 14. The advantages are that this structure allows for rapid alignment, precise positioning, and lateral misalignment constraint during the assembly of multiple independent functional compartment modules 2, effectively eliminating module installation gaps and offset deviations, avoiding problems such as positional misalignment and uneven splicing gaps after assembly, and improving overall splicing accuracy and structural coaxiality. Simultaneously, the cylindrical short pin 13 and positioning holes 14 work together to share the shear load of the fixing bolts 7, enhancing the overall connection stability, anti-slip capability, and structural rigidity, reducing the deformation effects caused by vibration, wind, and foundation settlement under outdoor conditions, and simplifying the on-site assembly and alignment process, reducing installation difficulty.

[0037] Specifically, multiple positioning bushings 8 and three positioning pins 9 are provided, with all three positioning pins 9 penetrating and connecting inside the multiple positioning bushings 8. The advantages are that this structure, by installing the positioning pins 9 through the positioning bushings 8, not only enables rapid and precise docking of the independent functional compartment modules 2, effectively limiting lateral and longitudinal displacement and angular offset between modules, ensuring coaxiality and overall flatness after adjacent modules are spliced, and preventing module misalignment and joint deformation caused by operational vibration and external pressure; furthermore, this device also strengthens the structural strength and overall rigidity of the module splicing points, improving the overall stability of the equipment and its adaptability to complex outdoor working conditions. Simultaneously, this plug-in positioning structure experiences minimal wear and is easy to disassemble and assemble, facilitating later module disassembly for inspection, replacement, maintenance, and reconfiguration, reducing maintenance difficulty and extending the overall service life of the equipment.

[0038] Specifically, anti-slip pads 15 are installed inside the multiple positioning bushings 8, and pull-out grooves 16 are provided on the outer end faces of the three positioning pins 9. The advantages are that the anti-slip pads 15 increase the contact friction between the positioning pins 9 and the positioning bushings 8, effectively preventing the positioning pins 9 from loosening or slipping under equipment vibration and external disturbances, eliminating inter-module movement and abnormal noise, and improving the locking stability and sealing protection of the splicing connection. Furthermore, the pull-out grooves 16 provide reliable force points for the disassembly and assembly of the positioning pins 9, allowing for quick extraction and installation without the need for complex special tools. This significantly reduces the operational difficulty of disassembling, repairing, reassembling, and expanding functional compartment modules, improving disassembly and assembly efficiency, while avoiding damage to components caused by knocking and bumping during disassembly and assembly, ensuring the long-term accuracy and integrity of the connection structure.

[0039] Specifically, multiple quick-locking components 17 are installed on the outer surfaces of each of the independent functional module 2. Each quick-locking component 17 includes a locking body 18 and a fixing seat 19. The advantages are that this structure allows for rapid locking after precise positioning and docking of each module, quickly completing the rigid connection between adjacent functional modules. This replaces the traditional, cumbersome method of fastening with multiple bolts, significantly shortening on-site assembly time and improving assembly efficiency. The structure can tightly fit and lock the end faces of adjacent modules, effectively constraining relative displacement and sway between modules, enhancing overall splicing strength and structural integrity, and resisting the loosening risks caused by outdoor wind and equipment vibration. At the same time, the unlocking operation is simple and labor-saving, facilitating rapid module disassembly, relocation for maintenance, and flexible expansion and combination. This adapts to the temporary deployment, relocation, reuse, and on-demand expansion needs of mobile substations, improving the overall environmental adaptability and ease of operation and maintenance of the equipment.

[0040] Specifically, multiple independent functional compartment modules 2 are equipped with sealing grooves 20 and sealing strips 21 on both sides, and side shielding strips 22 are installed on the outer surfaces of multiple independent functional compartment modules 2. The advantage is that when two adjacent modules are spliced ​​and locked together, the sealing strips 21 will be squeezed and deformed, effectively sealing the gaps between the compartments, preventing rainwater, dust, moisture, sand and condensation from entering the equipment, and preventing electrical components from getting damp and corroding, accumulating dust and short-circuiting; while the side shielding strips 22 can form a secondary protective barrier, covering the exposed gaps between the parts, reducing aging from sunlight and wear from external impacts, further improving the overall dustproof, waterproof, moisture-proof and heat-insulating performance, improving the internal operating environment of the compartment, reducing the probability of failure, extending the service life of electrical equipment and compartment structure, and ensuring the long-term stable and safe operation of the mobile substation in complex and harsh outdoor environments.

[0041] Specifically, multiple diversion pipes 11 and first dustproof nets 12 are provided, and multiple second dustproof nets 23 are installed on the top of the rain shelter 4. Electrically controlled valves 24 are installed on the outer surfaces of the multiple diversion pipes 11. The advantages are that this structure connects the ventilation pipes 10 to external cooling fans and other equipment. Through the diversion and heat dissipation structure of the ventilation pipes 10 and diversion pipes 11, independent ventilation and heat dissipation can be achieved according to the heat generation differences of electrical equipment in each compartment, rationally distributing airflow, balancing the temperature inside the compartment, avoiding localized heat accumulation and high temperatures, and ensuring the stable operation of various electrical components. Combined with the first dustproof nets 12 and second dustproof nets 23, it can effectively block external dust, insects, and debris from entering the compartment, preventing component aging due to dust accumulation and decreased insulation performance. The electrically controlled valves 24 can intelligently control the opening and closing of the pipelines and the airflow, automatically adjusting the heat dissipation intensity according to the ambient temperature and equipment load. In low-temperature and humid conditions, the pipelines can be closed to reduce moisture intrusion, achieving multiple protection effects of heat dissipation, dust prevention, and moisture prevention. It is suitable for variable outdoor environments, reduces equipment failure rates, and extends the overall service life.

[0042] This invention also provides a method for using a modular and scalable spliced ​​mobile substation, which is carried out according to the following steps: S1. Hoist each independent functional module 2 to the corresponding installation position on the support base 1, so that the positioning bushings 8 on the inner side of the adjacent independent functional module 2 are aligned with each other, and install the positioning pin 9 through the inside of the corresponding positioning bushing 8 to limit the lateral displacement, longitudinal displacement and angular offset between the adjacent independent functional module 2. S2. After the positioning pin 9 passes through the positioning bushing 8, the anti-slip pad 15 inside the positioning bushing 8 contacts the outer periphery of the positioning pin 9. The anti-slip pad 15 increases the contact friction between the positioning pin 9 and the positioning bushing 8, so as to limit the positioning pin 9 from loosening and slipping under the vibration of the equipment and external disturbance. S3. After the adjacent independent functional compartment modules 2 are positioned, operate multiple quick locking components 17 to lock the locking body 18 and the fixed buckle 19, thereby pressing and connecting the end faces of the adjacent independent functional compartment modules 2 and restraining the relative displacement and shaking between the adjacent independent functional compartment modules 2. S4. After the adjacent independent functional compartment modules 2 are locked, the sealing strip 21 enters the corresponding sealing groove 20 and is deformed by pressure to seal the splicing gap between the adjacent compartments. At the same time, the exposed splicing gap is covered by the side shielding strip 22, forming a barrier and protection against rainwater, dust, moisture, wind and sand and condensation.

[0043] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A modular and scalable splicing mobile substation, comprising a support base (1), characterized in that: The top surface of the support base (1) is equipped with an independent functional cabin module (2) and a control cabin module (3). The top surface of the independent functional cabin module (2) is equipped with a rain shelter (4). The outer side of the independent functional cabin module (2) is provided with a cabin door (5) and a threaded base (6). The inside of the threaded base (6) is equipped with a fixing bolt (7). The inner side of the independent functional cabin module (2) is provided with a positioning bushing (8). The inside of the positioning bushing (8) is equipped with a positioning pin (9). The inside of the support base (1) is fixedly installed with a ventilation pipe (10). The outer side of the ventilation pipe (10) is fixedly connected with a diversion pipe (11). The end of the diversion pipe (11) away from the ventilation pipe (10) is fixedly installed with a first dustproof net (12).

2. The modular and scalable splicing mobile substation according to claim 1, characterized in that: The number of the independent functional compartment module (2), the door (5), the threaded base (6) and the fixing bolt (7) are all provided in multiples, and the multiple fixing bolts (7) are all threadedly connected to the inside of the bearing base (1).

3. A modular and scalable splicing mobile substation according to claim 1, characterized in that: The bottom surface of each of the independent functional compartment modules (2) is provided with a cylindrical short pin (13), and the top surface of the support base (1) has a plurality of positioning holes (14), and the cylindrical short pin (13) is installed inside the positioning hole (14).

4. A modular and scalable splicing mobile substation according to claim 1, characterized in that: The number of positioning bushings (8) is set to multiple, and the number of positioning pins (9) is set to three, and the three positioning pins (9) are all connected through the interior of the multiple positioning bushings (8).

5. A modular and scalable splicing mobile substation according to claim 1, characterized in that: The interior of each of the multiple positioning bushings (8) is equipped with an anti-slip pad (15), and the outer end face of each of the three positioning pins (9) is provided with a pull-out groove (16).

6. A modular and scalable splicing mobile substation according to claim 1, characterized in that: Multiple quick-locking components (17) are installed on the outer sides of the multiple independent functional compartment modules (2). Each quick-locking component (17) includes a locking body (18) and a fixing seat (19).

7. A modular and scalable splicing mobile substation according to claim 1, characterized in that: Each of the independent functional compartment modules (2) has a sealing groove (20) and a sealing strip (21) on both sides, and the outer side of each of the independent functional compartment modules (2) is equipped with a side shielding strip (22).

8. A modular and scalable splicing mobile substation according to claim 1, characterized in that: The number of the diversion pipe (11) and the first dustproof net (12) are both provided in multiples, and the top of the rain shelter (4) is equipped with multiple second dustproof nets (23), and the outer side of the multiple diversion pipes (11) is equipped with an electric control valve (24).

9. A method for using a modular and scalable mobile substation, employing the modular and scalable mobile substation as described in any one of claims 1-8, characterized in that: Follow these steps: S1. Hoist each independent functional module (2) to the corresponding installation position of the support base (1), so that the positioning bushings (8) on the inner side of the adjacent independent functional module (2) are aligned with each other, and the positioning pin (9) is installed through the inside of the corresponding positioning bushing (8) to limit the lateral displacement, longitudinal displacement and angular offset between the adjacent independent functional modules (2). S2. After the positioning pin (9) passes through the positioning bushing (8), the anti-slip pad (15) inside the positioning bushing (8) contacts the outer periphery of the positioning pin (9). The anti-slip pad (15) increases the contact friction between the positioning pin (9) and the positioning bushing (8) to limit the positioning pin (9) from loosening and slipping under the vibration of the equipment and external disturbance. S3. After the adjacent independent functional compartment modules (2) are positioned, operate multiple quick locking components (17) to lock the locking body (18) and the fixed buckle (19) to press and connect the end faces of the adjacent independent functional compartment modules (2) and constrain the relative displacement and shaking between the adjacent independent functional compartment modules (2). S4. After the adjacent independent functional compartment modules (2) are locked, the sealing strip (21) is inserted into the corresponding sealing groove (20) and deformed under pressure to seal the splicing gap between adjacent compartments. At the same time, the exposed splicing gap is covered by the side shielding strip (22) to form a barrier against rainwater, dust, moisture, wind and sand and condensation.

Images