Battery container foundation suitable for source network load storage system and hoisting modular construction method

Abstract

The invention relates to battery energy storage system construction, in particular to a battery container foundation suitable for a source network load storage system and a hoisting modular construction method. The concrete foundation is installed in the ground, and a plurality of stand columns are fixedly installed on the top of the concrete foundation. The cable assembly is used for supporting and fixing a battery container line, and the cable assembly is connected with the concrete foundation, the first sleeve, the second sleeve and the third sleeve; the drainage assembly is used for drainage and connected with the concrete foundation. According to the battery container, the circuit assembly is arranged and can be matched with the first sleeve, the second sleeve and the third sleeve to collect and fix the corresponding circuit, and the situation that the circuit falls, pressure is continuously caused to the connecting position of the circuit and the interior of the battery container, and the connecting position of the circuit and the battery container is poor in contact or damaged due to too large stress is avoided.

Description

TECHNICAL FIELD

[0001] The application relates to a battery energy storage system construction method, in particular to a battery container foundation and hoisting modular construction method suitable for a source network load storage system. BACKGROUND

[0002] The battery container is formed by integrating battery modules, a management system (BMS / EMS), a temperature control system, fire-fighting equipment and the like in a container, and is a movable energy storage unit, which can balance power supply and demand, support stable output of new energy such as photovoltaic and wind energy, and is suitable for peak regulation, emergency power supply and the like.

[0003] With the large-scale development of new energy storage projects, the battery container is widely used due to its high integration degree and flexible deployment, but the following technical defects exist in the existing battery container foundation construction process: the lines cannot be effectively supported and fixed, so that the weight of a large number of lines is continuously transmitted to the connection between the battery container and the lines, the connection between the battery container and the lines is subjected to excessive stress, the connection between the battery container and the lines is separated due to excessive stress, resulting in poor contact, or the connection between the battery container and the lines is gradually damaged due to excessive stress, and the foundation design does not fully consider the operation and maintenance requirements of the battery container, such as not considering the damage to the equipment and the design requirements of the drainage system caused by local flood water level. SUMMARY

[0004] The line assembly can be used in cooperation with the first sleeve, the second sleeve and the third sleeve to bundle and fix the corresponding lines, so that the lines and the internal connection of the battery container are not continuously subjected to pressure, resulting in poor contact or excessive stress damage of the lines and the battery container connection.

[0005] The technical scheme of the application: the battery container foundation suitable for the source network load storage system, comprising a ground and a concrete foundation: the concrete foundation is installed in the inside of the ground, a plurality of stand columns are fixedly installed on the top of the concrete foundation, a channel steel is fixedly installed on the top of the stand column, a grounding flat steel, a first sleeve, a second sleeve and a third sleeve are fixedly installed on the top of the concrete foundation; The cable assembly is used for supporting and fixing the battery container lines, and is connected with the concrete foundation, the first sleeve, the second sleeve and the third sleeve; The drainage assembly is used for drainage, and is connected with the concrete foundation.

[0006] Optionally, the first sleeve, the second sleeve, and the third sleeve are all provided with cable assemblies. The cable assembly includes a rotating frame, a rotating wheel, and a sealing door that are rotatably connected inside the first sleeve, the second sleeve, and the third sleeve. It also includes a steering rod, a connecting sleeve, and a conduit that are fixedly installed on the first sleeve, the second sleeve, and the third sleeve. The conduit is fixedly installed inside the concrete foundation.

[0007] Optionally, the number of rotating frames is set to multiple, and each of the multiple rotating frames has two clamping plates rotatably connected to its outer wall. The outer wall of each clamping plate is fixedly connected to a counterweight bar and a gasket.

[0008] Optionally, a connecting rope is inserted inside the plurality of rotating frames. The connecting rope abuts against the outer wall of the steering rod. One end of the connecting rope is fixedly connected to a winding wheel, which is fixedly installed at one end of the rotating wheel.

[0009] Optionally, the rotating wheel is inserted into the inside of the connecting sleeve, and a threaded rod is threadedly connected inside the rotating wheel. An inclined locking block is slidably connected inside the rotating wheel, and the threaded rod abuts against the outer wall of the inclined locking block.

[0010] Optionally, counterweights are rotatably connected to the outer walls of multiple rotating frames, and a limit plate is fixedly connected to one side of the sealing door.

[0011] Optionally, the drainage assembly includes a drainage cover fixedly installed inside the concrete foundation, with a drainage pipe fixedly connected to the bottom of the drainage cover, and the drainage pipe fixedly installed inside the concrete foundation.

[0012] Optionally, a sealing plate is rotatably connected inside the drain pipe, and a float and a reinforcing rod are fixedly installed on one side of the sealing plate.

[0013] Optionally, the reinforcing rod rests against the inside of the drain pipe, and the reinforcing rod is disposed on the outer wall of the float.

[0014] A modular construction method for lifting battery container foundations applicable to a power-grid-load-storage system includes the following steps: S1. Foundation construction preparation: The groundwater level in the construction area was detected to be -1.2m, and the excavation depth of the foundation pit was determined to be 0.5m below the groundwater level; S2. Pouring and pre-embedding: Pouring C30 concrete into the foundation pit to form a concrete foundation, pre-embedding columns and grounding flat steel on the top surface of the concrete foundation, and pre-embedding cable assemblies and drainage assemblies at the same time. S3. Accuracy Verification: After the C30 concrete foundation is cured, the flatness of the top surface of the concrete foundation is checked to meet the standard, the embedded columns and grounding flat steel on the top surface of the concrete foundation are checked to meet the standard, and the height of the top surface of the concrete foundation is checked to be 0.3m higher than the ground to meet the maintenance operation requirements. S4. Lifting: A 50-ton single crane is selected, and Φ28mm steel wire rope is used for lifting. When lifting, the angle between the lifting rope and the vertical direction is adjusted to be less than 30°. The battery container is lifted onto the column on the top surface of the concrete foundation. The base of the battery container is welded to the channel steel on the column. The welded parts are coated with epoxy zinc-rich primer for anti-corrosion treatment. The grounding flat steel is welded to the grounding terminal of the battery container. S5. Acceptance: After verifying that all components meet the specifications and requirements for long-term operation and maintenance of the project, the construction is completed.

[0015] In summary, this application includes at least one of the following beneficial technical effects: By setting up a circuit assembly, the present invention can work with the first sleeve, the second sleeve and the third sleeve to bundle and fix the corresponding circuits, so as to prevent the circuits from falling and continuously putting pressure on the connection between the circuits and the battery container, which could lead to poor contact or damage due to excessive force at the connection between the circuits and the battery container. Further drainage components can drain rainwater and block odors and small organisms such as insects inside the drainage pipes. This prevents water from affecting the internal structure of the battery container, odors from affecting the normal work of nearby staff, and insects from crawling out of the drainage pipes and entering the battery container through gaps, thus preventing damage to the internal structure and wiring. At the same time, it can also block water from flowing back into the drainage pipes, preventing water from flowing back into the concrete foundation.

[0016] In summary, this invention possesses outstanding substantive features and significant progress. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the foundation structure proposed in this invention; Figure 2 This is a first-view structural cross-sectional view of the cable assembly proposed in this invention; Figure 3 This is a second-view structural cross-sectional view of the cable assembly proposed in this invention; Figure 4 This is a schematic diagram of the cable assembly structure from a third-view perspective proposed in this invention; Figure 5 This is a cross-sectional view of the drainage component structure proposed in this invention; Figure 6 This is a schematic diagram of the battery container hoisting structure proposed in this invention.

[0018] Figure label: 1. Ground; 2. Concrete foundation; 3. Column; 4. Channel steel; 5. Grounding flat steel; 6. First sleeve; 7. Second sleeve; 8. Third sleeve; 9. Rotating frame; 10. Clamping plate; 11. Counterweight bar; 12. Shim; 13. Connecting rope; 14. Turning rod; 15. Rewinding reel; 16. Rotating reel; 17. Connecting sleeve; 18. Threaded rod; 19. Inclined locking block; 20. Counterweight block; 21. Sealing door; 22. Limiting plate; 23. Conduit; 24. Drain cover; 25. Drain pipe; 26. Sealing plate; 27. Floating component; 28. Reinforcing rod. Detailed Implementation

[0019] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0020] The components of the embodiments of the invention described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0021] 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.

[0022] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for 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 the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0024] Example 1, as Figures 1 to 5The battery container foundation shown, suitable for a power-grid-load-storage system, includes a ground surface 1 and a concrete foundation 2. The concrete foundation 2 is installed inside the ground surface 1. Multiple columns 3 are fixedly installed on the top of the concrete foundation 2. Channel steel 4 (14# channel steel) is fixedly installed on the top of each column 3. Grounding flat steel 5, a first sleeve 6, a second sleeve 7, and a third sleeve 8 are fixedly installed on the top of the concrete foundation 2. The grounding flat steel 5 has dimensions of 50×50mm. A cable assembly is used to support and fix the battery container wiring. The cable assembly is connected to the concrete foundation 2, the first sleeve 6, the second sleeve 7, and the third sleeve 8. A drainage assembly is used for drainage and is connected to the concrete foundation 2. In this embodiment, the column 3 is used to support and install the battery container through the channel steel 4, the grounding flat steel 5 is used to connect to the grounding terminal of the battery container, the first sleeve 6 is used to cooperate with the cable assembly to bundle and fix the low-voltage AC incoming and outgoing lines of the battery container, the second sleeve 7 is used to cooperate with the cable assembly to bundle and fix the incoming and outgoing lines of communication and other equipment, and the third sleeve 8 is used to cooperate with the cable assembly to bundle and fix the incoming and outgoing lines of the air cabinet. Specifically, after the battery container is hoisted to the top of column 3, the workers can weld the battery container to the channel steel 4 at the top of column 3; then the workers can weld the grounding terminal of the battery container to the grounding flat steel 5. It should be noted that the welding length is not less than 100mm.

[0025] Example 2, as Figures 1 to 4 As shown, cable assemblies are installed inside the first sleeve 6, the second sleeve 7, and the third sleeve 8. Each cable assembly includes a rotating frame 9, a rotating wheel 16, and a sealing door 21 rotatably connected inside the first sleeve 6, the second sleeve 7, and the third sleeve 8. It also includes a steering rod 14, a connecting sleeve 17, and a conduit 23 fixedly installed on the first sleeve 6, the second sleeve 7, and the third sleeve 8. The conduit 23 is fixedly installed inside the concrete foundation 2. Multiple rotating frames 9 are provided, and two clamping plates 10 are rotatably connected to the outer walls of each rotating frame 9. A counterweight bar 11 is fixedly connected to the outer wall of each clamping plate 10. A gasket 12 is fixedly connected to the outer wall of the plate 10. A connecting rope 13 is inserted into the interior of multiple rotating frames 9. The connecting rope 13 abuts against the outer wall of the steering rod 14. A winding wheel 15 is fixedly connected to one end of the connecting rope 13. The winding wheel 15 is fixedly installed at one end of the rotating wheel 16. The rotating wheel 16 is inserted into the interior of the connecting sleeve 17. A threaded rod 18 is threadedly connected to the interior of the rotating wheel 16. An inclined locking block 19 is slidably connected to the interior of the rotating wheel 16. The threaded rod 18 abuts against the outer wall of the inclined locking block 19. A counterweight 20 is rotatably connected to the outer wall of each of the multiple rotating frames 9. A limit plate 22 is fixedly connected to one side of the sealing door 21. In this embodiment, the cable assembly is used in conjunction with the first sleeve 6, the second sleeve 7 and the third sleeve 8 to bundle and fix the corresponding lines, so as to prevent the lines from falling and continuously putting pressure on the connection between the lines and the inside of the battery container, which could lead to poor contact or damage due to excessive force at the connection between the lines and the battery container. Specifically, after the internal wiring of the first sleeve 6, the second sleeve 7, and the third sleeve 8 passes between two adjacent rotating frames 9 on the cable assembly, the operator can rotate the rotating wheel 16. This rotating wheel 16 drives the winding wheel 15 to wind up the connecting rope 13. The connecting rope 13, after being turned by the steering rod 14, pulls multiple rotating frames 9 to rotate. This causes the two clamping plates 10 on each rotating frame 9 to rotate together, bringing the clamping plates 10 on the two adjacent rotating frames 9 closer together. The approaching clamping plates 10 then drive the gaskets 12 to clamp and secure the wiring passing between the two rotating frames 9. This prevents the connection between the battery container and the wiring from being continuously subjected to the force of gravity, which could damage the connection and affect the normal use of the battery container. Furthermore, this clamping and securing mechanism, where the two adjacent rotating frames 9 drive the clamping plates 10 and gaskets 12, can accommodate different numbers and thicknesses of wiring, eliminating the need for operators to change wiring based on quantity and thickness. This improves the efficiency of wiring securing, expands the applicability of the wiring, and facilitates operator use. It should be noted that because the outer wall of the clamping plate 10 is fixedly connected to the counterweight 11, when the rotating frame 9 drives the clamping plate 10 to rotate, the clamping plate 10 will not change its own angle under the weight of the counterweight 11. This ensures that the angle of the pads 12 on the clamping plate 10 does not change, thus ensuring the clamping area of ​​the pads 12 on the circuit and the clamping friction of the pads 12 on the circuit. This prevents the circuit from descending along the pads 12, affecting the clamping and fixing effect on the circuit. Simultaneously, when the operator rotates the rotating wheel 16, the rotating wheel 16... When the connecting rope 13 is wound up by the winding wheel 15, the connecting rope 13 pulls the rotating frame 9 to rotate. The rotating frame 9 will drive the corresponding counterweight 20 to rotate, so that the counterweight 20 on the rotating frame 9 near the sealing door 21 rotates to one side of the limiting plate 22, limiting the limiting plate 22. When the staff pulls the sealing door 21 to rotate and open it, the sealing door 21 will drive the limiting plate 22 to be blocked by the counterweight 20, so that the sealing door 21 cannot be rotated and opened, thereby achieving the effect of locking the sealing door 21 and preventing the sealing door 21 from opening automatically. It is important to note that after the operator has clamped and secured the circuit, one hand can hold the rotating wheel 16 while the other hand rotates the threaded rod 18. This allows the threaded rod 18 to enter the rotating wheel 16 through the threads, thereby pressing the inclined locking block 19 against the connecting sleeve 17 and locking it in place. This ensures the inclined locking block 19 locks the rotation of the rotating wheel 16, preventing it from reversing and causing the gasket 12 to loosen its clamping grip on the circuit. When the operator needs to open the sealing door 21 to inspect the circuit or needs to stop clamping the circuit, the threaded rod 18 can be rotated back to its original position. The threaded rod 18 stops pressing on the inclined locking block 19, and the inclined locking block 19 is no longer locked to the connecting sleeve 17. At this time, the rotating wheel 16 is unlocked, and the operator can rotate the rotating wheel 16 to reset it. The rotating wheel 16 drives the winding wheel 15 to rotate and release the connecting rope 13, so that the counterweight 20 can pull the corresponding rotating frame 9 to reset. The reset of the rotating frame 9 will cause the clamping plate 10 and the gasket 12 to stop clamping the line, so that the line is unclamped. The reset of the counterweight 20 will stop limiting the limit plate 22, so that the operator can pull the sealing door 21 to open and expose the line for testing.

[0026] Example 3, as Figure 1 and Figure 5 As shown, the drainage assembly includes a drainage cover 24 fixedly installed inside the concrete foundation 2. A drainage pipe 25 is fixedly connected to the bottom of the drainage cover 24. The drainage pipe 25 is fixedly installed inside the concrete foundation 2. A sealing plate 26 is rotatably connected inside the drainage pipe 25. A floating component 27 and a reinforcing rod 28 are fixedly installed on one side of the sealing plate 26. The reinforcing rod 28 abuts against the inside of the drainage pipe 25 and is set on the outer wall of the floating component 27. In this embodiment, the drainage component is used to drain the water generated during rain and to block odors and small organisms such as insects inside the drainage pipe 25, so as to prevent the water from affecting the internal structure of the battery container, prevent the odor from affecting the normal work of the surrounding staff, and prevent insects from crawling out of the drainage pipe 25 and entering the battery container through gaps, thereby damaging the internal structure and wiring of the battery container. Specifically, when water accumulates, it flows into the drain pipe 25 through the drain cover 24. The water then flows along the inside of the drain pipe 25 and drives the sealing plate 26 to rotate through the float 27, opening the seal on the drain pipe 25. This allows the water to continue flowing out of the drain pipe 25 through the sealing plate 26. After the water passes through the sealing plate 26, the float 27 on the sealing plate 26 loses buoyancy, allowing the sealing plate 26 and the reinforcing rod 28 to rotate and reset under their own weight, resealing the drain pipe 25 and blocking odors and insects. At the same time, it can also block water from flowing back into the drain pipe 25, preventing water from flowing back into the concrete foundation 2.

[0027] A modular construction method for lifting battery container foundations applicable to a power-grid-load-storage system includes the following steps: S1. Foundation construction preparation: The groundwater level in the construction area was detected to be -1.2m, and the excavation depth of the foundation pit was determined to be 0.5m below the groundwater level; S2. Pouring and pre-embedding: Pour C30 concrete into the foundation pit to form concrete foundation 2, and pre-embed columns 3 and grounding flat steel 5 on the top surface of concrete foundation 2, while pre-embedding cable assemblies and drainage assemblies. S3. Accuracy Verification: After the C30 concrete foundation 2 is cured, the flatness of the top surface of the concrete foundation 2 is checked to meet the standard (flatness error of the upper surface <5mm), the pre-embedded column 3 and grounding flat steel 5 on the top surface of the concrete foundation 2 are checked to meet the standard, and the height of the top surface of the concrete foundation 2 is checked to be 0.3m higher than the ground to meet the maintenance operation requirements. like Figure 6 As shown, S4. Lifting: A 50-ton single crane is selected, and the lifting rope is a Φ28mm steel wire rope. When lifting, the angle between the lifting rope and the vertical direction is adjusted to be less than 30°. The battery container (weighing about 41 tons, width 6058mm, height 3100mm, depth 2438mm) is lifted onto the column 3 on the top surface of the concrete foundation 2. The base of the battery container is welded to the channel steel 4 on the column 3. The welded parts are coated with epoxy zinc-rich primer for anti-corrosion treatment. The grounding flat steel 5 is welded to the grounding terminal of the battery container (the grounding resistance is tested to be 0.5Ω). S5. Acceptance: After verifying that all components meet the specifications and requirements for long-term operation and maintenance of the project, the construction is completed.

[0028] Working principle: When the operator needs to clamp and fix the wiring inside the first sleeve 6, the second sleeve 7, and the third sleeve 8, the corresponding wire can be passed between two adjacent rotating frames 9 on the corresponding cable assembly and the rotating wheel 16 can be rotated. The rotating wheel 16 drives the winding wheel 15 to wind up the connecting rope 13. The connecting rope 13 is turned by the turning rod 14 and pulls multiple rotating frames 9 to rotate. The multiple rotating frames 9 drive the two clamping plates 10 on them to rotate together, so that the clamping plates 10 on the two adjacent rotating frames 9 move closer to each other. The clamping plates 10 that move closer to each other drive the corresponding pads 12 to clamp and fix the wiring. This prevents the battery container from being continuously subjected to the weight of the wiring at the connection point, which could cause damage or poor connection at the connection point and affect the normal use of the battery container. Finally, the operator can rotate the threaded rod 18 to squeeze the inclined locking block 19 to lock the rotating wheel 16.

[0029] The above specific embodiments are merely optional embodiments of the present invention. Based on the technical solutions of the present invention and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A battery container foundation suitable for a power-grid-load-storage system, characterized in that, It includes a ground (1) and a concrete foundation (2); the concrete foundation (2) is installed inside the ground (1), and multiple columns (3) are fixedly installed on the top of the concrete foundation (2). Channel steel (4) is fixedly installed on the top of the columns (3), and grounding flat steel (5), a first sleeve (6), a second sleeve (7) and a third sleeve (8) are fixedly installed on the top of the concrete foundation (2). The cable assembly is used to support and fix the battery container wiring, and the cable assembly is connected to the concrete foundation (2), the first sleeve (6), the second sleeve (7) and the third sleeve (8); A drainage assembly for drainage, the drainage assembly being connected to the concrete foundation (2).

2. The battery container foundation for a power-grid-load-storage system according to claim 1, characterized in that, The first sleeve (6), the second sleeve (7) and the third sleeve (8) are all equipped with cable assemblies. The cable assemblies include a rotating frame (9), a rotating wheel (16) and a sealing door (21) that are rotatably connected inside the first sleeve (6), the second sleeve (7) and the third sleeve (8). They also include a steering rod (14), a connecting sleeve (17) and a conduit (23) that are fixedly installed on the first sleeve (6), the second sleeve (7) and the third sleeve (8). The conduit (23) is fixedly installed inside the concrete foundation (2).

3. The battery container foundation for a power-grid-load-storage system according to claim 2, characterized in that, The number of rotating frames (9) is set to multiple, and the outer walls of the multiple rotating frames (9) are rotatably connected to two clamping plates (10). The outer walls of the clamping plates (10) are fixedly connected to counterweights (11) and gaskets (12).

4. The battery container foundation for a power-grid-load-storage system according to claim 3, characterized in that, A connecting rope (13) is inserted inside each of the multiple rotating frames (9). The connecting rope (13) abuts against the outer wall of the steering rod (14). One end of the connecting rope (13) is fixedly connected to a winding wheel (15). The winding wheel (15) is fixedly installed at one end of the rotating wheel (16).

5. The battery container foundation for a power-grid-load-storage system according to claim 4, characterized in that, The rotating wheel (16) is inserted into the inside of the connecting sleeve (17). The inside of the rotating wheel (16) is connected to a threaded rod (18) by a thread. The inside of the rotating wheel (16) is slidably connected to an inclined locking block (19). The threaded rod (18) abuts against the outer wall of the inclined locking block (19).

6. The battery container foundation for a power-grid-load-storage system according to claim 2, characterized in that, The outer walls of the multiple rotating frames (9) are rotatably connected to counterweights (20), and a limit plate (22) is fixedly connected to one side of the sealing door (21).

7. The battery container foundation for a power-grid-load-storage system according to claim 1, characterized in that, The drainage assembly includes a drainage cover (24) fixedly installed inside the concrete foundation (2), and a drainage pipe (25) is fixedly connected to the bottom of the drainage cover (24), and the drainage pipe (25) is fixedly installed inside the concrete foundation (2).

8. The battery container foundation for a power-grid-load-storage system according to claim 7, characterized in that, The drain pipe (25) is rotatably connected to a sealing plate (26), and a float (27) and a reinforcing rod (28) are fixedly installed on one side of the sealing plate (26).

9. The battery container foundation for a power-grid-load-storage system according to claim 8, characterized in that, The reinforcing rod (28) abuts against the inside of the drain pipe (25), and the reinforcing rod (28) is set on the outer wall of the float (27).

10. A construction method for modularly installing battery container foundations in a power-grid-load-storage system, applicable to any one of claims 1-9, characterized in that, Includes the following steps: S1. Foundation construction preparation: The groundwater level in the construction area was detected to be -1.2m, and the excavation depth of the foundation pit was determined to be 0.5m below the groundwater level; S2. Pouring and pre-embedding: Pouring C30 concrete into the foundation pit to form a concrete foundation (2), pre-embedding columns (3) and grounding flat steel (5) on the top surface of the concrete foundation (2), and pre-embedding cable assemblies and drainage assemblies at the same time; S3. Accuracy verification: After the C30 concrete foundation (2) is cured, check that the flatness of the top surface of the concrete foundation (2) meets the standard, check that the embedded column (3) and grounding flat steel (5) on the top surface of the concrete foundation (2) meet the standard, and check that the height of the top surface of the concrete foundation (2) is 0.3m higher than the ground to meet the maintenance operation requirements; S4. Lifting: A 50-ton single crane is selected, and the lifting rope is Φ28mm steel wire rope. When lifting, the angle between the lifting rope and the vertical direction is adjusted to be less than 30°. The battery container is lifted onto the column (3) on the top surface of the concrete foundation (2). The base of the battery container is welded to the channel steel (4) on the column (3). The welded part is coated with epoxy zinc-rich primer for anti-corrosion treatment. The grounding flat steel (5) is welded to the grounding terminal of the battery container. S5. Acceptance: After verifying that all components meet the specifications and requirements for long-term operation and maintenance of the project, the construction is completed.

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