An assembled energy storage battery cabin firewall integrated foundation and a construction process thereof

Abstract

The application relates to a fabricated energy storage battery cabin fireproof wall integrated foundation and a construction process thereof, which comprises a prefabricated independent foundation and a prefabricated beam. The top of the prefabricated independent foundation is provided with a prefabricated connecting piece. A plurality of first sleeves horizontally distributed are arranged in the prefabricated connecting piece. The outer circumferential side of the prefabricated connecting piece is provided with a first sleeve opening corresponding to the position of the first sleeve. The outer stretching steel bars of the prefabricated beam are connected with the first sleeves through the first sleeve openings. A plurality of prefabricated independent foundations are connected with the prefabricated beam through the prefabricated connecting pieces to form a battery cabin foundation. The top of the battery cabin foundation is provided with a prefabricated fireproof wall. The application realizes the functional integration of the fireproof wall and the battery cabin foundation, constructs a fabricated foundation system with self-adaptive leveling and vibration isolation capacity, supports the flexible deployment of the construction site, and meets the core development needs of the current power industry for the capacity elastic expansion and low-carbon construction of the energy storage power station.

Description

Technical Field

[0001] This invention relates to the field of battery compartment technology, and in particular to an integrated foundation for a prefabricated energy storage battery compartment firewall and its construction process. Background Technology

[0002] As the global energy structure shifts towards renewable energy, energy storage technology has become a key means to address the grid integration and consumption of intermittent energy sources such as wind and solar power. As the core carrier of energy storage systems, battery compartments (i.e., containerized energy storage units) have been widely adopted. Currently, battery compartment foundation types mainly include raft foundations, independent foundations, and strip foundations, with different design schemes adopted based on differences in geological conditions, load-bearing capacity, and seismic requirements in actual engineering projects.

[0003] Currently, energy storage power stations are trending towards centralized deployment at the GWh level. However, the traditional cast-in-place concrete foundation for battery compartments has a long construction cycle, high cost, and is difficult to dismantle. There is an urgent need to find a solution that can be quickly assembled and constructed.

[0004] With the updates and changes in the characteristics of battery compartments, the weight of a single battery compartment can exceed 100 tons, and there is vibration and thermal expansion deformation during the charging and discharging process. Traditional rigid foundations are prone to structural stress concentration.

[0005] The terrain where energy storage power stations are located includes plains, mountains and hills, deserts and Gobi and coastal islands, with complex and diverse geology. The foundation of the battery compartment is affected by factors such as uneven settlement and seismic loads. Summary of the Invention

[0006] The purpose of this invention is to provide an integrated prefabricated energy storage battery compartment firewall foundation and its construction process, which can be assembled into a free-assembly battery compartment foundation that adapts to the scale and capacity requirements of battery compartments of various levels of energy storage power stations and has both leveling and vibration isolation functions.

[0007] The technical solution of the present invention:

[0008] An integrated foundation for a prefabricated energy storage battery compartment firewall includes a prefabricated independent foundation and a prefabricated beam. A prefabricated connector is provided on the top of the prefabricated independent foundation. Several first sleeves are horizontally distributed inside the prefabricated connector. Each prefabricated connector has a first sleeve opening corresponding to the position of the first sleeve on its outer periphery. The protruding steel bars of the prefabricated beam pass through the first sleeve opening and connect to the first sleeve.

[0009] Several prefabricated independent foundations are connected to prefabricated beams through prefabricated connectors to form a battery compartment foundation, and a prefabricated firewall is installed on the top of the battery compartment foundation;

[0010] The prefabricated firewall includes a prefabricated cap, prefabricated columns, and prefabricated wall panels. The prefabricated cap is fixedly connected to the top of the prefabricated columns by bolts, and the prefabricated columns and prefabricated wall panels are vertically spliced ​​by mortise and tenon joints.

[0011] The prefabricated column includes a core column, a middle column, and a side column. Connecting grooves are provided on all four sides of the core column, two opposing surfaces of the middle column, and one side of the side column.

[0012] The prefabricated wall panel includes two outer wall panels and an inner wall panel fixed between the two outer wall panels. The two ends of the inner wall panel extend beyond the two ends of the outer wall panels in the horizontal direction to form a tenon-and-mortise connection with the connecting groove. The lower ends of the two outer wall panels extend beyond the lower ends of the inner wall panel, and the upper ends of the inner wall panel extend beyond the upper ends of the two outer wall panels to form a tenon-and-mortise connection with other prefabricated wall panels.

[0013] The prefabricated connector has several vertically distributed second sleeves inside, and the top of the prefabricated connector has a second sleeve opening corresponding to the position of the second sleeve; the bottom of the prefabricated column has several first longitudinal steel bars, and the first longitudinal steel bars pass through the second sleeve opening and connect to the second sleeve.

[0014] Furthermore, the prefabricated independent foundation is connected to the prefabricated connector via a leveling and vibration isolation support; the leveling and vibration isolation support includes a lower metal plate fixed to the top of the prefabricated independent foundation, and the top middle of the lower metal plate is connected to the bottom of the upper metal plate via a vibration isolation layer.

[0015] Several steel springs are fixed to the top of the lower metal plate and the bottom of the upper metal plate. A third sleeve is provided between the upper and lower steel springs. The upper and lower ends of the third sleeve are fixedly connected to the upper and lower steel springs respectively. Holes corresponding to the positions of the third sleeves are opened on both the upper and lower metal plates. The bottom of the prefabricated connector has a third sleeve opening corresponding to the position of the second sleeve.

[0016] The top of the precast independent foundation has several second longitudinal steel bars, which pass through the holes in the lower metal plate, the third sleeve, the holes in the upper metal plate, the third sleeve opening, and are connected to the second sleeve in sequence.

[0017] Furthermore, the prefabricated connector has multiple layers of first sleeves, and each layer of first sleeves is arranged in a grid pattern.

[0018] Furthermore, the precast top has multiple first threaded holes that mate with bolts, the top of the precast column has multiple second threaded holes that mate with bolts, and the precast column has multiple bolt sleeves that mate with bolts.

[0019] Furthermore, the edge of the precast cap has drip lines.

[0020] Furthermore, the bottom of the drip line is coated with black topcoat.

[0021] Furthermore, a lead-core damper is embedded at the centroid of the vibration isolation layer.

[0022] Furthermore, the precast columns and exterior wall panels are made of materials with high strength, impact resistance, and weather resistance; the interior wall panels are made of materials with fireproof, heat-insulating, impact-resistant, and environmentally friendly properties.

[0023] A construction process for an integrated firewall foundation for a prefabricated energy storage battery compartment, the process being as follows:

[0024] S1: Based on the design drawings, confirm the precast independent foundation number, size and lifting point location, site design elevation and foundation depth, and conduct on-site survey and layout positioning;

[0025] S2: After the site of the energy storage station is leveled, the foundation pit of the prefabricated independent foundation is excavated to the design elevation; the foundation pad is poured, which extends 100mm beyond the bottom outline of the prefabricated independent foundation in both length and width, and has a thickness of 100-150mm; the prefabricated independent foundation is hoisted to the design position, so that it is located directly below the corresponding battery compartment installation area.

[0026] S3: A certain length of second longitudinal steel bar is reserved on the top surface of the precast independent foundation. It is then fitted into the third sleeve reserved in the leveling and vibration isolation support. After the centroid of the plane is aligned, high-strength non-shrink grout is poured into the gap between the second longitudinal steel bar and the third sleeve.

[0027] S4: After the high-strength non-shrink grout from step S3 has solidified to the design strength, continue to insert the second sleeve reserved in the prefabricated connector into the position of the second longitudinal steel bar extending outward from the top surface of the metal plate on the leveling vibration isolation support. After the centroid of the plane is aligned, pour the high-strength non-shrink grout into the gap between the second longitudinal steel bar and the second sleeve.

[0028] S5: Hoist the precast beam to the same horizontal level as the center horizontal section of the precast connector. Simultaneously insert each of the protruding steel bars of the precast beam into the first sleeve of the precast connector for precise splicing. After the centroid of the plane is aligned, fill the gap between the protruding steel bars and the first sleeve with high-strength non-shrink grout.

[0029] S6: Similarly, hoist the second precast independent foundation to the other end of the precast beam, and insert the protruding steel bars at the other end of the precast beam into the first sleeve of the precast connector at the top of the precast independent foundation to form a frame structure containing two precast independent foundations and one precast beam.

[0030] S7: Based on the actual battery compartment size and layout area in the energy storage power station, two prefabricated beams described in step S6 can be hoisted separately, and a prefabricated connector can be added at the joint of the prefabricated beams to increase the length of the battery compartment foundation and form a frame structure containing two prefabricated independent foundations and two prefabricated beams.

[0031] S8: Fill the gap between the outward-extending steel bar and the first sleeve with high-strength non-shrink grout. Check the positioning and elevation of the frame according to the design drawings. If there is a deviation within a controllable range, adjust the leveling vibration isolation support until it meets the design requirements. After confirming that there are no errors, wait for the high-strength non-shrink grout to solidify to the design strength.

[0032] S9: Similarly, repeat steps S1-S8 until the nine prefabricated independent foundations and eighteen prefabricated beams are hoisted and spliced ​​to form the grid-shaped prefabricated energy storage power station battery compartment foundation structure.

[0033] S10: The core column, middle column and side column of the precast firewall are hoisted in sequence. The first longitudinal steel bar at the bottom of each precast column is inserted into the second sleeve of the precast connector. After the planar centroid is aligned, high-strength non-shrink grout is poured into the gap between the first longitudinal steel bar and the second sleeve.

[0034] S11: The protruding ends on both sides of the inner wall panel of the bottom precast wall panel are embedded into the connection grooves reserved by the two precast columns. The second bottom section is spliced ​​in the same way. In the vertical direction, the adjacent two precast wall panels will have grooves and protrusions due to the staggered arrangement. The upper and lower precast wall panels are spliced ​​with mortise and tenon joints using these grooves and protrusions. The assembly is carried out from bottom to top until the precast wall panels are spliced ​​to be flush with the top surface of the precast columns. Fireproof silicone structural adhesive is used to fill the joints between the precast wall panels and the precast columns, and between the precast wall panels.

[0035] S12: The prefabricated capping of the prefabricated firewall on the single-group grid-shaped battery compartment foundation is cross-shaped and arranged vertically along the length of the prefabricated firewall; the prefabricated column is reserved with four centrally symmetrically distributed second threaded holes and bolt sleeves, and the prefabricated capping above the prefabricated column is reserved with first threaded holes at the corresponding positions. When assembling the prefabricated capping and the prefabricated column, high-strength bolts are used for bolting and fixing, and the gap between the prefabricated capping and the high-strength bolts is sealed and smoothed with fire-retardant silicone structural adhesive; the gap between the prefabricated capping and the prefabricated wall panel at the top is also filled with fire-retardant silicone structural adhesive.

[0036] S13: Repeat steps S1-S12 to achieve rapid assembly and construction of an integrated battery compartment foundation and firewall that is adaptable to different layout forms, different geological conditions, and adjustable leveling and vibration isolation, based on the energy storage requirements of energy storage power stations of various levels.

[0037] Furthermore, it also includes S14: If it is necessary to recycle old materials, before demolishing the existing prefabricated battery compartment foundation and firewall structure, a temporary support system should be set up first, and then a special drilling tool should be used to drill and break the high-strength non-shrink grout to release the protruding steel bars of the precast beams; after a comprehensive evaluation of the strength performance of the old materials and the load requirements of the new application conditions, they can be reused in energy storage power station projects; for the materials of the precast firewalls, such as the inner wall panels made of calcium silicate board or magnesium crystal fireproof board, they can be crushed and used as backfill materials for site leveling or roadbed filling, so as to realize the intensive use of resources.

[0038] The beneficial effects of this invention are:

[0039] (1) Core components such as precast independent foundations, precast beams, precast connectors, precast capping, precast columns, and precast wall panels can all be produced in the factory in a standardized manner, achieving precise manufacturing and quality control, greatly shortening the construction cycle of the battery compartment foundation, and quickly responding to the grid connection needs of today's new energy.

[0040] (2) This invention can flexibly adjust the arrangement of the battery compartment foundation according to the power / capacity level, battery compartment size, and other configuration parameters of the energy storage power station, achieving a precise match between project requirements and functional layout. Furthermore, when the power station needs to be expanded later, no reconstruction is required; only additional independent foundations, beams, and firewall modules need to be added in the pre-reserved locations or adjacent areas of the existing foundations. This "Lego-style" assembly process provides flexibility and space for energy storage projects, better aligning with the phased construction of energy storage projects and adapting to future technological updates and iterations related to energy storage power stations.

[0041] (3) The leveling and vibration isolation bearings installed on the independent foundation module can effectively isolate the seismic effect from the vibration generated by the operation of the battery compartment itself, thereby improving the stability of the system operation. Secondly, the leveling function can adjust the foundation depth of the battery compartment within a certain range according to the actual terrain and geological conditions of the site. The good terrain and geological adaptability greatly expands the site selection range of energy storage power stations and avoids the disadvantages of traditional cast-in-place foundations that require high-cost foundation pretreatment for special terrain and geological conditions.

[0042] (4) The building materials are easy to assemble, disassemble, and recyclable, which significantly reduces the negative impact of construction waste on the environment. This meets the "dual carbon" target and the requirements of green building, and can promote the power industry to gradually move towards low-carbon and environmentally friendly transformation.

[0043] (5) This invention realizes the functional integration of firewall and battery compartment foundation, and constructs a prefabricated foundation system with adaptive leveling and vibration isolation capabilities, which supports flexible deployment on the construction site and meets the core development needs of the power industry for flexible capacity expansion and low-carbon construction of energy storage power stations.

[0044] In summary, the present invention assembles prefabricated firewalls and shares the battery compartment foundation to partition the surrounding battery compartments with fire retardancy. The present invention transforms the battery compartment foundation of the energy storage power station from a static bearing type to a dynamic adaptive type, quickly and flexibly assembles and arranges the prefabricated foundation modules of the battery compartment on site, adapts to the scale requirements of energy storage power stations of all levels, has the adaptive functions of leveling and vibration isolation, shortens the construction period, and the building materials can be recycled, meeting the core requirements of the current power industry for rapid deployment, flexible expansion and low-carbon construction. Brief Description of the Drawings

[0045] Figure 1 is a structural schematic diagram of the present invention.

[0046] Figure 2 is a structural schematic diagram of a prefabricated independent foundation.

[0047] Figure 3 is a structural schematic diagram of the second longitudinal reinforcement.

[0048] Figure 4 is a structural schematic diagram of a leveling and vibration isolation support.

[0049] Figure 5 is an internal structure diagram of a prefabricated connector.

[0050] Figure 6 is a structural schematic diagram of a prefabricated beam.

[0051] Figure 7 is a schematic diagram of a battery compartment foundation in a grid pattern.

[0052] Figure 8 is a structural schematic diagram of a core column.

[0053] Figure 9 is a structural schematic diagram of a side column.

[0054] Figure 10 is a structural schematic diagram of a middle column.

[0055] Figure 11 is a structural schematic diagram of a prefabricated wall.

[0056] Figure 12 is a structural schematic diagram of a prefabricated coping.

[0057] Figure 13 is a structural schematic diagram of a prefabricated firewall.

[0058] Figure 14 is a partial schematic diagram of a prefabricated coping.

[0059] Figure 15 is an installation schematic diagram of a prefabricated wall.

[0060] Figure 16 is an internal structure diagram of a prefabricated column.

[0061] In the diagram: 1. Precast independent foundation; 2. Precast beam; 3. Precast connector; 31. First sleeve; 21. Outer reinforcing bar; 4. Precast firewall; 41. Precast coping; 42. Precast wall panel; 43. Precast column; 43. Core column; 431. Middle column; 432. Side column; 433. Connecting groove; 434. Outer wall panel; 421. Inner wall panel; 422. Second sleeve; 33. First longitudinal reinforcing bar; 435. Leveling vibration isolation support; 5. Lower metal plate; 51. Vibration isolation layer; 52. Upper metal plate; 53. Steel spring; 54. Third sleeve; 55. Hole; 56. Second longitudinal reinforcing bar; 11. First threaded hole; 411. Second threaded hole; 436. Bolt sleeve; 437. Drip edge; 412. Detailed Implementation

[0062] The invention will now be further described with reference to the accompanying drawings.

[0063] like Figures 1-16 As shown, the present invention provides a first embodiment of an integrated foundation for a prefabricated energy storage battery compartment firewall, including a prefabricated independent foundation 1 and a prefabricated beam 2. A prefabricated connector 3 is provided on the top of the prefabricated independent foundation 1. Several first sleeves 31 are horizontally distributed inside the prefabricated connector 3. The outer periphery of the prefabricated connector 3 has a first sleeve opening corresponding to the position of the first sleeve 31. The outward reinforcing bar 21 of the prefabricated beam 2 passes through the first sleeve opening and connects to the first sleeve 31.

[0064] Several prefabricated independent foundations 1 are connected to prefabricated beams 2 through prefabricated connectors 3 to form a battery compartment foundation. A prefabricated firewall 4 is provided on the top of the battery compartment foundation to isolate and retard the surrounding battery compartment.

[0065] In this embodiment, the precast independent foundation 1 can be replaced by a precast strip foundation, raft foundation, etc.

[0066] In this embodiment, the prefabricated firewall 4 is cross-shaped. There are nine prefabricated independent foundations 1, arranged in three rows of three. The two prefabricated independent foundations 1 are connected by prefabricated connectors 3 and prefabricated beams 2 to form a grid-shaped battery compartment foundation. The cross-shaped prefabricated firewall 4 is connected to the top of the battery compartment foundation to form an integrated foundation for the battery compartment and firewall.

[0067] In this embodiment, after the protruding steel bars 21 of the precast beam 2 are inserted into the first sleeve 31, high-strength non-shrink grout is poured into the gap between the first sleeve 31 and the protruding steel bars 21 of the precast beam 2 to connect and fix the two.

[0068] In this embodiment, the prefabricated connector 3 also has several stirrups, which are interspersed with the first sleeve 31 in layers, and form a block after concrete is poured in the middle.

[0069] Based on the first embodiment, the present invention provides a second embodiment of an integrated foundation for a prefabricated energy storage battery compartment firewall. The prefabricated firewall 4 includes a prefabricated capping 41, prefabricated columns 43 and prefabricated wall panels 42. The prefabricated capping 41 is fixedly connected to the top of the prefabricated columns 43 by bolts. The prefabricated columns 43 and the prefabricated wall panels 42 are vertically spliced ​​by mortise and tenon joints.

[0070] The prefabricated column 43 includes a core column 431, a middle column 432 and a side column 433. The four sides of the core column 431, two opposing surfaces of the middle column 432 and one side of the side column 433 are provided with connecting grooves 434.

[0071] The prefabricated wall panel 42 includes two outer wall panels 421 and an inner wall panel 422 fixed between the two outer wall panels 421. The two ends of the inner wall panel 422 in the horizontal direction extend beyond the two ends of the outer wall panels 421 to form a tenon-and-mortise connection with the connecting groove 434. The lower ends of the two outer wall panels 421 extend beyond the lower ends of the inner wall panel 422, and the upper ends of the inner wall panel 422 extend beyond the upper ends of the two outer wall panels 421 to form a tenon-and-mortise connection with other prefabricated wall panels 42.

[0072] Since the lower ends of the two outer wall panels 421 extend beyond the lower end of the inner wall panel 422, a gap is formed between the lower ends of the two outer wall panels 421 and the lower end of the inner wall panel 422, allowing the upper ends of the inner wall panels 422 of other prefabricated wall panels 42 to be inserted, forming a mortise and tenon connection.

[0073] In this embodiment, prefabricated wall panels 42 are arranged longitudinally between two prefabricated columns 43 using mortise and tenon joints to form a cross-shaped wall structure. Finally, a prefabricated capping 41 is bolted to the top surface of the prefabricated columns 43. The gap between the prefabricated capping 41 and the bolts is sealed and smoothed with fire-retardant silicone structural adhesive. Similarly, the gap between the prefabricated capping 41 and the top prefabricated wall panel 42 is filled with fire-retardant silicone structural adhesive, forming a prefabricated fire wall 4. The upper end of the inner wall panel 422 of the top prefabricated wall panel 42 is flush with the upper end of the outer wall panel 421, and the lower end of the inner wall panel 422 of the bottom prefabricated wall panel 42 is flush with the lower end of the outer wall panel 421.

[0074] Based on any of the above embodiments, the present invention provides a third embodiment of an integrated foundation for a prefabricated energy storage battery compartment firewall. The prefabricated connector 3 is provided with a plurality of vertically distributed second sleeves 33. The top of the prefabricated connector 3 has a second opening corresponding to the position of the second sleeve 33. The bottom of the prefabricated column 43 has a plurality of first longitudinal steel bars 435. The first longitudinal steel bars 435 pass through the second opening and connect to the second sleeve 33, which facilitates the connection between the prefabricated connector 3 and the prefabricated column 43.

[0075] In this embodiment, after the first longitudinal steel bar 435 is inserted into the second sleeve 33, high-strength non-shrink grout is injected into the gap between the second sleeve 33 and the first longitudinal steel bar 435 to connect and fix the two.

[0076] Based on the third embodiment, the present invention provides a fourth embodiment of the prefabricated energy storage battery compartment firewall integrated foundation, wherein the prefabricated independent foundation 1 is connected to the prefabricated connector 3 via a leveling and vibration isolation support 5; the leveling and vibration isolation support 5 includes a lower metal plate 51 fixed to the top of the prefabricated independent foundation 1, and the top middle of the lower metal plate 51 is connected to the bottom of the upper metal plate 53 via a vibration isolation layer 52.

[0077] The leveling and vibration isolation bearing 5 has both vibration isolation and leveling functions. The vibration isolation function can effectively isolate the seismic effect from the vibration generated by the operation of the battery compartment itself, thereby improving the stability of the system operation. Secondly, the leveling function can adjust the foundation depth of the battery compartment within a certain range according to the actual topography and geological conditions of the site.

[0078] Several steel springs 54 are fixed to the top of the lower metal plate 51 and the bottom of the upper metal plate 53. A third sleeve 55 is provided between two upper and lower steel springs 54. The upper and lower ends of the third sleeve 55 are fixedly connected to the upper and lower steel springs 54 respectively. Holes 56 corresponding to the positions of the third sleeve 55 are opened on both the upper metal plate 53 and the lower metal plate 51. The bottom of the prefabricated connector 3 has a third sleeve opening corresponding to the position of the second sleeve 33.

[0079] The top of the prefabricated independent foundation has several second longitudinal steel bars 11, which pass through the holes 56 of the lower metal plate 51, the third sleeve 55, the holes 56 of the upper metal plate 53, the third sleeve opening, and are connected to the second sleeve 33.

[0080] In this embodiment, after the second longitudinal steel bar 11 is inserted into the second sleeve 33, high-strength non-shrink grout is injected into the gap between the second sleeve 33 and the second longitudinal steel bar 11, and into the gap between the third sleeve 55 and the second longitudinal steel bar 11 to connect and fix the two.

[0081] In this embodiment, the vibration isolation layer 52 is constructed by alternating layers of steel plates and rubber sheets bonded together by vulcanization, with a lead-core damper pressed into its centroid. The vibration isolation function is mainly achieved by the vibration isolation layer, which serves as the main vibration isolation element and is responsible for dissipating most of the vibration energy. The steel springs 54 arranged around the vibration isolation layer 52 serve as auxiliary elements, working in conjunction with the vibration isolation layer 52 to further absorb the remaining vibration.

[0082] In this embodiment, the leveling function is implemented in the following two ways:

[0083] Scenario 1: After the precast independent foundation 1 is hoisted and placed on site, the third sleeve 55 and hole 56 of the leveling and vibration isolation support 5 are inserted into the second longitudinal steel bar 11. In this process, if there are boulders or hard rocks in the foundation at the bottom of the precast independent foundation 1, the geological layers such as rocks may be difficult to level due to limited construction conditions (lack of construction equipment, insufficient construction period, etc.), resulting in tilting or excessive height.

[0084] If tilting occurs, first adjust the higher side of the upper metal plate 53 to compress the steel spring 54 on the higher side and stretch the one on the lower side, thereby correcting the upper metal plate 53 to a horizontal state. Then, pour high-strength non-shrink grout to fix the second longitudinal steel bar 11 and the third sleeve 55.

[0085] If the precast independent foundation 1 is too high, the upper metal plate 53 can be adjusted first to compress all the steel springs 54 and lower the height of the upper metal plate 53. Then, high-strength non-shrink grout can be poured to fix the second longitudinal steel bar 11 and the third sleeve 55.

[0086] Scenario 2: If there are significant errors during on-site construction, rectification will require a lot of time and building materials. The same process described above will be used to achieve the leveling function.

[0087] Based on any of the above embodiments, the present invention provides a fifth embodiment of an integrated foundation for a prefabricated energy storage battery compartment firewall, wherein the prefabricated connector 3 has multiple layers of first sleeves 31, each layer of first sleeves 31 is arranged in a grid pattern, which facilitates connection with the outward reinforcing bars 21 of the prefabricated beams 2 in different directions.

[0088] Based on the second embodiment, this invention provides a sixth embodiment of an integrated prefabricated energy storage battery compartment firewall foundation. The prefabricated cap 41 has multiple first threaded holes 411 that mate with bolts, and the top of the prefabricated column 43 has multiple second threaded holes 436 that mate with bolts. The prefabricated column 43 contains multiple bolt sleeves 437 that mate with bolts. The bolts engaging with the first threaded holes 411, second threaded holes 436, and bolt sleeves 437 facilitate the assembly and disassembly of the prefabricated cap 41. The second threaded holes 436 and bolt sleeves 437 can also be used for hoisting.

[0089] Based on the second or sixth embodiment, the present invention provides a seventh embodiment of an integrated foundation for a prefabricated energy storage battery compartment firewall, wherein the edge of the prefabricated cap 41 has drip lines 412 that can collect and guide rainwater droplets.

[0090] Based on the seventh embodiment, the present invention provides an eighth embodiment of the prefabricated energy storage battery compartment firewall integrated foundation, wherein the bottom of the drip line 412 is coated with black topcoat in order to enhance the visual recognition of the outline and improve the stain resistance of the rainwater collection area by using dark paint, thus combining aesthetics and practicality.

[0091] Based on the fourth embodiment, the present invention provides a ninth embodiment of an integrated foundation for a prefabricated energy storage battery compartment firewall, wherein a lead-core damper is embedded at the centroid of the vibration isolation layer 52, which can dissipate the vibration energy input to the structure through plastic deformation.

[0092] Based on the second embodiment, the present invention provides a tenth embodiment of an integrated fireproof foundation for a prefabricated energy storage battery compartment. The prefabricated columns 43 and the outer wall panels 421 are made of materials with high strength, impact resistance, and weather resistance, such as high-performance concrete (HPC) or ultra-high-performance concrete (UHPC), but not limited to these. The inner wall panels 422 are made of materials with fireproof, heat-insulating, impact-resistant, and environmentally friendly properties, such as calcium silicate board or magnesium crystal fireproof board, but not limited to these.

[0093] Based on any of the above embodiments, the present invention provides a first embodiment of a construction process for an integrated foundation for a prefabricated energy storage battery compartment firewall, the process being as follows:

[0094] S1: Based on the design drawings, confirm the precast independent foundation number, size and lifting point location, site design elevation and foundation depth, and conduct on-site survey and layout positioning;

[0095] S2: After the site of the energy storage station is leveled, the foundation pit of the prefabricated independent foundation is excavated to the design elevation; the foundation pad is poured, which extends 100mm beyond the bottom outline of the prefabricated independent foundation in both length and width, and has a thickness of 100-150mm; the prefabricated independent foundation is hoisted to the design position, so that it is located directly below the corresponding battery compartment installation area.

[0096] S3: A certain length of second longitudinal steel bar is reserved on the top surface of the precast independent foundation. It is then fitted into the third sleeve reserved in the leveling and vibration isolation support. After the centroid of the plane is aligned, high-strength non-shrink grout is poured into the gap between the second longitudinal steel bar and the third sleeve.

[0097] S4: After the high-strength non-shrink grout from step S3 has solidified to the design strength, continue to insert the second sleeve reserved in the prefabricated connector into the position of the second longitudinal steel bar extending outward from the top surface of the metal plate on the leveling vibration isolation support. After the centroid of the plane is aligned, pour the high-strength non-shrink grout into the gap between the second longitudinal steel bar and the second sleeve.

[0098] S5: Hoist the precast beam to the same horizontal level as the center horizontal section of the precast connector. Simultaneously insert each of the protruding steel bars of the precast beam into the first sleeve of the precast connector for precise splicing. After the centroid of the plane is aligned, fill the gap between the protruding steel bars and the first sleeve with high-strength non-shrink grout.

[0099] S6: Similarly, hoist the second precast independent foundation to the other end of the precast beam, and insert the protruding steel bars at the other end of the precast beam into the first sleeve of the precast connector at the top of the precast independent foundation to form a frame structure containing two precast independent foundations and one precast beam.

[0100] S7: Based on the actual battery compartment size and layout area in the energy storage power station, two prefabricated beams described in step S6 can be hoisted separately, and a prefabricated connector can be added at the joint of the prefabricated beams to increase the length of the battery compartment foundation and form a frame structure containing two prefabricated independent foundations and two prefabricated beams.

[0101] S8: Fill the gap between the outward-extending steel bar and the first sleeve with high-strength non-shrink grout. Check the positioning and elevation of the frame according to the design drawings. If there is a deviation within a controllable range, adjust the leveling vibration isolation support until it meets the design requirements. After confirming that there are no errors, wait for the high-strength non-shrink grout to solidify to the design strength.

[0102] S9: Similarly, repeat steps S1-S8 until the nine prefabricated independent foundations and eighteen prefabricated beams are hoisted and spliced ​​to form the grid-shaped prefabricated energy storage power station battery compartment foundation structure.

[0103] S10: The core column, middle column and side column of the precast firewall are hoisted in sequence. The first longitudinal steel bar at the bottom of each precast column is inserted into the second sleeve of the precast connector. After the planar centroid is aligned, high-strength non-shrink grout is poured into the gap between the first longitudinal steel bar and the second sleeve.

[0104] S11: The protruding ends on both sides of the inner wall panel of the bottom precast wall panel are embedded into the connection grooves reserved by the two precast columns. The second bottom section is spliced ​​in the same way. In the vertical direction, the adjacent two precast wall panels will have grooves and protrusions due to the staggered arrangement. The upper and lower precast wall panels are spliced ​​with mortise and tenon joints using these grooves and protrusions. The assembly is carried out from bottom to top until the precast wall panels are spliced ​​to be flush with the top surface of the precast columns. Fireproof silicone structural adhesive is used to fill the joints between the precast wall panels and the precast columns, and between the precast wall panels.

[0105] S12: The prefabricated capping of the prefabricated firewall on the single-group grid-shaped battery compartment foundation is cross-shaped and arranged vertically along the length of the prefabricated firewall; the prefabricated column is reserved with four centrally symmetrically distributed second threaded holes and bolt sleeves, and the prefabricated capping above the prefabricated column is reserved with first threaded holes at the corresponding positions. When assembling the prefabricated capping and the prefabricated column, high-strength bolts are used for bolting and fixing, and the gap between the prefabricated capping and the high-strength bolts is sealed and smoothed with fire-retardant silicone structural adhesive; the gap between the prefabricated capping and the prefabricated wall panel at the top is also filled with fire-retardant silicone structural adhesive.

[0106] S13: Repeat steps S1-S12 to achieve rapid assembly and construction of an integrated battery compartment foundation and firewall that is adaptable to different layout forms, different geological conditions, and adjustable leveling and vibration isolation, based on the energy storage requirements of energy storage power stations of various levels.

[0107] Based on the previous embodiment, the present invention provides a second embodiment of the construction process for an integrated foundation for a prefabricated energy storage battery compartment firewall, which further includes S14: If it is necessary to recycle old materials, before demolishing the existing prefabricated battery compartment foundation and firewall structure, a temporary support system is first set up, and then a special drilling tool is used to drill and break the high-strength non-shrink grout to release the protruding steel bars of the prefabricated beams; after a comprehensive evaluation of the strength performance of the old materials and the load requirements of the new application conditions, they can be reused in energy storage power station projects; for the materials of the prefabricated firewall, such as the inner wall panels made of calcium silicate board or magnesium crystal fireproof board, they can be crushed and used as backfill materials for site leveling or roadbed filling, so as to realize the intensive use of resources.

[0108] The above description is only a preferred embodiment of the present invention and should not be construed as a limitation of this application. All equivalent changes and modifications made in accordance with the scope of the patent application of the present invention should be included in the scope of the present invention.

Claims

1. An integrated foundation for a prefabricated energy storage battery compartment firewall, comprising a prefabricated independent foundation and prefabricated beams, characterized in that, The top of the precast independent foundation is provided with a precast connector; the precast connector is provided with a number of horizontally distributed first sleeves, and the outer periphery of the precast connector is provided with a first sleeve opening corresponding to the position of the first sleeve. The outward reinforcing bar of the precast beam passes through the first sleeve opening and connects to the first sleeve. Several prefabricated independent foundations are connected to prefabricated beams through prefabricated connectors to form a battery compartment foundation, and a prefabricated firewall is installed on the top of the battery compartment foundation; The prefabricated firewall includes a prefabricated cap, prefabricated columns, and prefabricated wall panels. The prefabricated cap is fixedly connected to the top of the prefabricated columns by bolts, and the prefabricated columns and prefabricated wall panels are vertically spliced ​​by mortise and tenon joints. The prefabricated column includes a core column, a middle column, and a side column. Connecting grooves are provided on all four sides of the core column, two opposing surfaces of the middle column, and one side of the side column. The prefabricated wall panel includes two outer wall panels and an inner wall panel fixed between the two outer wall panels. The two ends of the inner wall panel extend beyond the two ends of the outer wall panels in the horizontal direction to form a tenon-and-mortise connection with the connecting groove. The lower ends of the two outer wall panels extend beyond the lower ends of the inner wall panel, and the upper ends of the inner wall panel extend beyond the upper ends of the two outer wall panels to form a tenon-and-mortise connection with other prefabricated wall panels. The prefabricated connector has several vertically distributed second sleeves inside, and the top of the prefabricated connector has a second sleeve opening corresponding to the position of the second sleeve; the bottom of the prefabricated column has several first longitudinal steel bars, and the first longitudinal steel bars pass through the second sleeve opening and connect to the second sleeve. The prefabricated independent foundation is connected to the prefabricated connector via a leveling and vibration isolation support; the leveling and vibration isolation support includes a lower metal plate fixed to the top of the prefabricated independent foundation, and the top middle of the lower metal plate is connected to the bottom of the upper metal plate via a vibration isolation layer. Several steel springs are fixed to the top of the lower metal plate and the bottom of the upper metal plate. A third sleeve is provided between the upper and lower steel springs. The upper and lower ends of the third sleeve are fixedly connected to the upper and lower steel springs respectively. Holes corresponding to the positions of the third sleeves are opened on both the upper and lower metal plates. The bottom of the prefabricated connector has a third sleeve opening corresponding to the position of the second sleeve. The top of the precast independent foundation has several second longitudinal steel bars, which pass through the holes in the lower metal plate, the third sleeve, the holes in the upper metal plate, the third sleeve opening, and are connected to the second sleeve in sequence.

2. The prefabricated integrated foundation for a fireproof firewall in a battery compartment according to claim 1, characterized in that, The prefabricated connector has multiple layers of first sleeves, and each layer of first sleeves is arranged in a grid pattern.

3. The prefabricated energy storage battery compartment firewall integrated foundation according to claim 1, characterized in that, The precast top has multiple first threaded holes that mate with bolts, the top of the precast column has multiple second threaded holes that mate with bolts, and the precast column has multiple bolt sleeves that mate with bolts.

4. The prefabricated energy storage battery compartment firewall integrated foundation according to claim 1 or 3, characterized in that, The edge of the precast cap has drip lines.

5. The prefabricated energy storage battery compartment firewall integrated foundation according to claim 4, characterized in that, The bottom of the drip line is coated with black topcoat.

6. The prefabricated integrated foundation for a fireproof firewall in a battery compartment according to claim 1, characterized in that, A lead-core damper is embedded at the centroid of the vibration isolation layer.

7. The prefabricated integrated foundation for a fireproof firewall in a battery compartment according to claim 1, characterized in that, The precast columns and exterior wall panels are made of materials with high strength, impact resistance, and weather resistance; the interior wall panels are made of materials with fireproof, heat-insulating, impact-resistant, and environmentally friendly properties.

8. A construction process for an integrated foundation for a prefabricated energy storage battery compartment firewall as described in any one of claims 1-7, characterized in that, The process is as follows: S1: Based on the design drawings, confirm the prefabricated independent foundation number, size and lifting point location, site design elevation and foundation depth information, and conduct on-site survey and layout positioning; S2: After the site of the energy storage station is leveled, the foundation pit of the prefabricated independent foundation is excavated to the design elevation; the foundation pad is poured, which extends 100mm beyond the bottom outline of the prefabricated independent foundation in both length and width, and has a thickness of 100~150mm; the prefabricated independent foundation is hoisted to the design position, so that it is located directly below the corresponding battery compartment installation area. S3: A certain length of second longitudinal steel bar is reserved on the top surface of the precast independent foundation. It is then fitted into the third sleeve reserved in the leveling and vibration isolation support. After the centroid of the plane is aligned, high-strength non-shrink grout is poured into the gap between the second longitudinal steel bar and the third sleeve. S4: After the high-strength non-shrink grout from step S3 has solidified to the design strength, continue to insert the second sleeve reserved in the prefabricated connector into the position of the second longitudinal steel bar extending outward from the top surface of the metal plate on the leveling vibration isolation support. After the centroid of the plane is aligned, pour the high-strength non-shrink grout into the gap between the second longitudinal steel bar and the second sleeve. S5: Hoist the precast beam to the same horizontal level as the center horizontal section of the precast connector. Simultaneously insert each of the protruding steel bars of the precast beam into the first sleeve of the precast connector for precise splicing. After the centroid of the plane is aligned, fill the gap between the protruding steel bars and the first sleeve with high-strength non-shrink grout. S6: Hoist the second precast independent foundation to the other end of the precast beam, and insert the protruding steel bars at the other end of the precast beam into the first sleeve of the precast connector at the top of the precast independent foundation to form a frame structure containing two precast independent foundations and one precast beam. S7: Based on the actual battery compartment size and layout area in the energy storage power station, two prefabricated beams described in step S6 can be hoisted separately, and a prefabricated connector can be added at the joint of the prefabricated beams to increase the length of the battery compartment foundation and form a frame structure containing two prefabricated independent foundations and two prefabricated beams. S8: Fill the gap between the outward-extending steel bar and the first sleeve with high-strength non-shrink grout. Check the positioning and elevation of the frame according to the design drawings. If there is a deviation within a controllable range, adjust the leveling vibration isolation support until it meets the design requirements. After confirming that there are no errors, wait for the high-strength non-shrink grout to solidify to the design strength. S9: Repeat steps S1-S8 until the nine prefabricated independent foundations and eighteen prefabricated beams are hoisted and spliced ​​to form a grid-shaped prefabricated energy storage power station battery compartment foundation structure. S10: The core column, middle column and side column of the precast firewall are hoisted in sequence. The first longitudinal steel bar at the bottom of each precast column is inserted into the second sleeve of the precast connector. After the planar centroid is aligned, high-strength non-shrink grout is poured into the gap between the first longitudinal steel bar and the second sleeve. S11: The protruding ends on both sides of the inner wall panel of the bottom precast wall panel are embedded into the connection grooves reserved by the two precast columns. The second bottom section is spliced ​​in the same way. In the vertical direction, the adjacent two precast wall panels will have grooves and protrusions due to the staggered arrangement. The upper and lower precast wall panels are spliced ​​with mortise and tenon joints using these grooves and protrusions. The assembly is carried out from bottom to top until the precast wall panels are spliced ​​to be flush with the top surface of the precast columns. Fireproof silicone structural adhesive is used to fill the joints between the precast wall panels and the precast columns, and between the precast wall panels. S12: The prefabricated capping of the prefabricated firewall on the single-group grid-shaped battery compartment foundation is cross-shaped and arranged vertically along the length of the prefabricated firewall; the prefabricated column is reserved with four centrally symmetrically distributed second threaded holes and bolt sleeves, and the prefabricated capping above the prefabricated column is reserved with first threaded holes at the corresponding positions. When assembling the prefabricated capping and the prefabricated column, high-strength bolts are used for bolting and fixing, and the gap between the prefabricated capping and the high-strength bolts is sealed and smoothed with fire-retardant silicone structural adhesive; the gap between the prefabricated capping and the prefabricated wall panel at the top is also filled with fire-retardant silicone structural adhesive. S13: Repeat steps S1-S12 to achieve rapid assembly and construction of an integrated battery compartment foundation and firewall that is adaptable to different layout forms, different geological conditions, and adjustable leveling and vibration isolation, based on the energy storage requirements of energy storage power stations of various levels.

9. The construction process of an integrated foundation for a prefabricated energy storage battery compartment firewall according to claim 8, characterized in that, This also includes S14: If old materials need to be recycled, before dismantling the existing prefabricated battery compartment foundation and firewall structure, a temporary support system should be set up first, and then a special drilling tool should be used to drill and break the high-strength non-shrink grout to release the protruding steel bars of the precast beams; after a comprehensive evaluation of the strength performance of the old materials and the load requirements of the new application conditions, they can be reused in energy storage power station projects; for the materials of the precast firewalls, such as the inner wall panels made of calcium silicate board or magnesium crystal fireproof board, they can be crushed and used as backfill materials for site leveling or roadbed filling, so as to achieve intensive use of resources.

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