Fabricated energy storage battery compartment foundation structure and construction method

Abstract

The invention discloses a fabricated energy storage battery cabin foundation structure and a construction method, and relates to the technical field of energy storage battery cabins. By arranging the prefabricated connectable foundations and the prefabricated connecting beams, drawing design can be carried out for independent modules of the battery compartment, and standardization of installation design of the battery compartment is facilitated; meanwhile, through factory block prefabrication production, the finished product is standardized, and the quality is controllable. The prepared prefabricated connectable foundation and the prefabricated connecting beam are adopted for assembly type construction, the operation requirement for hoisting equipment is lowered, meanwhile, the foundation construction period is greatly shortened, and the requirement for rapid commissioning of energy storage power station projects is met. Besides, after comprehensive evaluation of strength performance and load required by new application working conditions, the assembly type energy storage battery cabin foundation structure can be disassembled, recombined and recycled, efficient recovery of components and resource closed loop are achieved, and green and low-carbon transformation of the civil engineering industry of an energy storage power station is promoted.

Description

Technical Field

[0001] This invention relates to the field of energy storage battery compartment technology, and more specifically, to a prefabricated energy storage battery compartment basic structure and construction method. Background Technology

[0002] With the rapid development of the new energy industry, energy storage power stations are playing an increasingly important role in power system peak shaving, frequency regulation, and backup power. The battery compartment, the core facility of an energy storage power station, has strict load-bearing requirements on its foundation structure, and must ensure stability and safety during equipment operation.

[0003] Currently, battery compartment foundations generally adopt cast-in-place reinforced concrete structures. This traditional construction method, based on engineering geological survey reports, load calculations, and seismic analysis results, mainly uses structural forms such as raft foundations, isolated foundations, or strip foundations. Cast-in-place concrete construction must be carried out strictly in accordance with civil engineering construction specifications, including a complete process flow encompassing foundation treatment, formwork erection, rebar tying, concrete pouring, and curing. The concrete curing period typically requires more than 7 days, and the superstructure construction can only proceed after the concrete has reached the design strength. The entire construction cycle often takes 2 to 3 weeks.

[0004] Because cast-in-place construction is significantly affected by environmental climatic conditions such as temperature and humidity, additional protective measures are required under extreme weather conditions, increasing construction difficulty and quality control costs. Furthermore, with the rapid advancements in energy storage battery technology, traditional cast-in-place foundations face difficulties in dismantling and reuse during equipment replacement, generating substantial construction waste and increasing retrofit costs and environmental impact. These issues severely restrict the efficiency and sustainable development of energy storage power station construction.

[0005] In view of this, the present invention is proposed. Summary of the Invention

[0006] The purpose of this invention is to provide a prefabricated energy storage battery compartment foundation structure and construction method.

[0007] This invention is implemented as follows: In a first aspect, the present invention provides a prefabricated energy storage battery compartment foundation structure, including a prefabricated connectable foundation, a prefabricated connecting beam, and a high-strength non-shrink grout.

[0008] The precast connectable foundation includes a precast foundation and a corner connecting block. The corner connecting block is a reinforced concrete block. The top of the precast foundation is fixedly connected to the corner connecting block by steel bars. The corner connecting block is provided with at least two diagonal closed stirrups arranged in a 90° rotation direction around the inner corner point of the corner connecting block. The corner connecting block is also pre-embedded with a steel bar installation sleeve.

[0009] The precast connecting beam includes a connecting beam body, with protruding reinforcing bars at both ends. The protruding reinforcing bars extend into the reinforcing bar installation sleeve and are connected and fixed to the corner connecting block by high-strength non-shrink grout. The precast connectable foundation and the precast connecting beam are alternately connected to form the battery compartment installation position.

[0010] In an optional implementation, multiple stirrups are evenly distributed at angles inside the corner connector block, rotating 90° around the inner corner of the corner connector block.

[0011] In an optional implementation, the number of stirrups is 2 to 8.

[0012] In an optional embodiment, the rebar installation sleeve is an L-shaped installation sleeve, and the two ends of the L-shaped installation sleeve are respectively fixedly connected to two adjacent precast connecting beams.

[0013] In an optional embodiment, the L-shaped mounting sleeve is made of ductile iron, and the minimum inner diameter of the L-shaped mounting sleeve minus the nominal diameter of the protruding reinforcing bar is ≥10mm.

[0014] In an optional implementation, the number of L-shaped mounting sleeves is 2 to 15.

[0015] In an optional implementation, the prefabricated foundation includes stepped short columns and / or tapered short columns.

[0016] In an optional implementation, the number of prefabricated connectable foundations and prefabricated connecting beams is the same, ranging from 3 to 12.

[0017] Secondly, the present invention provides a construction method for a prefabricated energy storage battery compartment foundation structure as described in any of the foregoing embodiments, comprising: hoisting a prefabricated connectable foundation to the area to be constructed; then hoisting a prefabricated connecting beam to the positioning sleeve of the protruding reinforcing bars of the prefabricated connecting beam and the corner connecting block; then hoisting a prefabricated connectable foundation to the positioning sleeve of the protruding reinforcing bars at the other end of the prefabricated connecting beam; and injecting high-strength non-shrink grout into the reinforcing bar mounting sleeve; and sequentially and alternately connecting the prefabricated connecting beam and the corner connecting block according to the above process to form the battery compartment installation position.

[0018] In an optional implementation, the high-strength non-shrink grout has a density of ≥99.9%.

[0019] The present invention has the following beneficial effects: This invention provides a prefabricated energy storage battery compartment foundation structure and construction method. By setting up prefabricated connectable foundations and prefabricated connecting beams, the design of individual battery compartment modules can be carried out, which is conducive to the standardization of battery compartment installation design. At the same time, the prefabrication of components in the factory ensures standardized finished products and controllable quality. Using prefabricated connectable foundations and prefabricated connecting beams for prefabricated construction reduces the operational requirements of hoisting equipment and significantly shortens the foundation construction cycle, meeting the rapid commissioning needs of applicable energy storage power station projects. In addition, after comprehensive evaluation of the strength performance and load requirements of new application conditions, the prefabricated energy storage battery compartment foundation structure can be disassembled, reassembled, and recycled, realizing efficient recycling of components and resource closed-loop, promoting the green and low-carbon transformation of the energy storage power station civil engineering industry. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the prefabricated energy storage battery compartment basic structure provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of a prefabricated connectable foundation provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of the corner connecting block provided in an embodiment of the present invention; Figure 4 This is a structural schematic diagram of a prefabricated connecting beam provided in an embodiment of the present invention.

[0022] Explanation of key component symbols: 100 - Prefabricated energy storage battery compartment foundation structure; 110 - Prefabricated connectable foundation; 111 - Prefabricated foundation; 112 - Corner connecting block; 1121 - Stirrup; 1122 - Rebar installation sleeve; 120 - Prefabricated connecting beam; 121 - Outwardly extending rebar; 130 - Battery compartment installation position. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Where specific conditions are not specified in the embodiments, conventional conditions or conditions recommended by the manufacturer shall apply. Reagents or instruments whose manufacturers are not specified are all conventional products that can be purchased commercially.

[0024] The features and performance of the present invention will be further described in detail below with reference to embodiments.

[0025] Please refer to Figure 1 In a first aspect, the present invention provides a prefabricated energy storage battery compartment foundation structure 100, including a prefabricated connectable foundation 110, a prefabricated connecting beam 120, and a high-strength non-shrink grout.

[0026] Please refer to Figure 2 The prefabricated connectable foundation 110 includes a prefabricated foundation 111 and a corner connecting block 112. The corner connecting block 112 is a reinforced concrete block. The top of the prefabricated foundation 111 is fixedly connected to the corner connecting block 112 by steel bars.

[0027] Please refer to Figure 3 The corner connecting block 112 is provided with at least two oblique closed stirrups 1121 arranged in a direction of 90° rotation around the inner corner point of the corner connecting block 112, and a steel bar installation sleeve 1122 is pre-embedded inside the corner connecting block 112.

[0028] In an optional embodiment, a plurality of stirrups 1121 are evenly distributed at an angle inside the corner connecting block 112, rotating 90° around the inner corner point of the corner connecting block 112, in order to improve the connection strength and stability of the stirrups 1121.

[0029] In an optional embodiment, the number of stirrups 1121 is 2 to 8, preferably three. The three stirrups 1121 are evenly distributed at an angle inside the corner connecting block 112, rotating 90° around the inner corner point of the corner connecting block 112. The included angle between two adjacent stirrups 1121 is 30°.

[0030] Please refer to Figure 4 The precast connecting beam 120 includes a connecting beam body, with protruding reinforcing bars 121 at both ends of the connecting beam body. The protruding reinforcing bars 121 extend into the reinforcing bar installation sleeve 1122 and are connected and fixed to the corner connecting block 112 by high-strength non-shrink grout. The precast connectable foundation 110 and the precast connecting beam 120 are alternately connected to form the battery compartment installation position 130.

[0031] In an optional embodiment, the rebar installation sleeve 1122 is an L-shaped installation sleeve, and the two ends of the L-shaped installation sleeve are respectively fixedly connected to two adjacent precast connecting beams 120.

[0032] In an optional embodiment, the L-shaped mounting sleeve is made of ductile iron, and the minimum inner diameter of the L-shaped mounting sleeve—the nominal diameter of the protruding reinforcing bar 121—is ≥10mm. This facilitates the rapid installation of the prefabricated connectable foundation 110 and the prefabricated connecting beam 120. Furthermore, by filling the gap between the L-shaped mounting sleeve and the protruding reinforcing bar 121 with sufficient high-strength non-shrink grout, the installation stability of the prefabricated connectable foundation 110 and the prefabricated connecting beam 120 is ensured.

[0033] In an optional implementation, the number of L-shaped mounting sleeves is 2 to 15.

[0034] Preferably, there are eight L-shaped mounting sleeves. Along the axial direction of the prefabricated connectable foundation 110, the eight L-shaped mounting sleeves are distributed in the upper, middle, and lower layers of the corner connecting block 112. The upper and lower layers each have three L-shaped mounting sleeves, and the middle layer has two L-shaped mounting sleeves. The L-shaped mounting sleeves in each layer are evenly spaced to ensure a stable connection between the prefabricated connectable foundation 110 and the prefabricated connecting beam 120.

[0035] In an optional implementation, the prefabricated foundation 111 includes independent foundations such as stepped short columns and / or tapered short columns.

[0036] In an optional embodiment, the number of prefabricated connectable foundations 110 and prefabricated connecting beams 120 is the same, which is 3 to 12. Therefore, the closed structure formed by the alternating connection of prefabricated connectable foundations 110 and prefabricated connecting beams 120, i.e., the planar shape of the battery compartment mounting position 130, is any one of 3 to 12 sides.

[0037] Preferably, most of the battery compartments are quadrangular prisms. Therefore, there are four prefabricated connectable bases 110 and four prefabricated connecting beams 120. The prefabricated connectable bases 110 and prefabricated connecting beams 120 are alternately connected to form a closed structure, that is, the planar shape of the battery compartment mounting position 130 is quadrilateral.

[0038] However, in other embodiments, the structure of the battery compartment mounting position 130 can be designed specifically according to the shape requirements of the battery compartment to meet the installation and use requirements of irregularly shaped battery compartments.

[0039] Secondly, the present invention provides a construction method for a prefabricated energy storage battery compartment foundation structure 100 as described in any of the foregoing embodiments, comprising hoisting a prefabricated connectable foundation 110 to the construction area, then hoisting a prefabricated connecting beam 120 to a position of the protruding reinforcing bars 121 of the prefabricated connecting beam 120 and the reinforcing bar installation sleeve 1122 of the corner connecting block 112, then hoisting another prefabricated connectable foundation 110 to a position of the protruding reinforcing bars 121 at the other end of the prefabricated connecting beam 120, and injecting high-strength non-shrink grout into the reinforcing bar installation sleeve 1122; and sequentially and alternately connecting the prefabricated connecting beam 120 and the corner connecting block 112 according to the above process to form a battery compartment installation position 130.

[0040] In an optional embodiment, the high-strength non-shrink grout has a density of ≥99.9%, preferably 100%.

[0041] In an optional embodiment, the construction method of the prefabricated energy storage battery compartment foundation structure 100 includes the following steps: S01. After the site of the energy storage station is leveled, the foundation pit of the battery compartment is excavated to the designated elevation according to the design requirements. Then, the foundation pad layer is laid in sequence below the battery compartment installation area as the area to be constructed.

[0042] S02. Hoist the prefabricated connectable foundation 110 to the construction area, and then hoist the prefabricated connecting beam 120 to the positioning of the reinforcing steel sleeve 1122 of the protruding steel bar 121 of the prefabricated connecting beam 120 and the corner connecting block 112.

[0043] During the hoisting process, the center horizontal height of the precast connecting beam 120 must be flush with the center horizontal section of the corner connecting block 112. At the same time, it must be ensured that the longitudinal outward reinforcing bars 121 of the precast connecting beam 120 are accurately inserted into the reinforcing bar installation sleeve 1122 of the corner connecting block 112 to achieve precise splicing.

[0044] S03. Following the same construction process, the second precast connectable foundation 110 is hoisted to the other end of the precast connecting beam 120 for positioning, ensuring that the longitudinal outward reinforcing bars 121 at this end of the precast connecting beam 120 are accurately inserted into the reinforcing bar installation sleeve 1122 of the corner connecting block 112 at the top of the precast connectable foundation 110, thus forming a frame structure system consisting of two independent precast connectable foundations 110 and one precast connecting beam 120.

[0045] S04. High-strength, non-shrink grout should be injected into the annular gap between the longitudinally extending reinforcing bars 121 and the reinforcing bar installation sleeves 1122, ensuring 100% compaction during injection. After grouting, the planar positioning and vertical elevation of the frame structure must be checked, and the deviation should be controlled within ±2mm of the design value. After passing quality inspection, allow it to cure statically until the grout reaches the design strength.

[0046] S05. Hoist the second precast connecting beam 120 to the corner connecting block 112 of one of the precast connectable foundations 110 in step S03, ensuring precise positioning of the precast connecting beam 120 and the corner connecting block 112. Then, accurately insert the protruding reinforcing bars 121 into the reinforcing bar installation sleeve 1122. During construction, a fine-tuning device is required to achieve millimeter-level positioning. After ensuring complete sealing of the contact surfaces, high-strength non-shrink grout is poured for fixation, so that the two precast connecting beams 120 are installed at a 90° angle.

[0047] S06. Repeat steps S02 to S05 to complete the hoisting of all four prefabricated connectable foundations 110 and four prefabricated connecting beams 120. Through precise docking of the sleeve-reinforcement nodes of the corner connecting blocks 112, a closed rectangular prefabricated foundation structure system is finally formed, providing a support platform for the installation of the upper battery compartment.

[0048] First Embodiment This embodiment provides a prefabricated energy storage battery compartment foundation structure 100, including a prefabricated connectable foundation 110, a prefabricated connecting beam 120, and a high-strength non-shrink grout.

[0049] The prefabricated connectable foundation 110 includes a prefabricated foundation 111 and a corner connecting block 112; the prefabricated foundation 111 is a conical short column with a conical base at the bottom and a protruding short column; the corner connecting block 112 is a reinforced concrete block, and the top of the short column of the prefabricated foundation 111 is fixedly connected to the corner connecting block 112 by steel bars.

[0050] The corner connecting block 112 is provided with three diagonal closed stirrups 1121 arranged at equal angles in a direction that rotates 90° around the inner corner of the corner connecting block 112. The included angle between two adjacent stirrups 1121 is 30°. The corner connecting block 112 is pre-embedded with a steel bar installation sleeve 1122, which is an L-shaped installation sleeve.

[0051] The precast connecting beam 120 includes a connecting beam body, with protruding reinforcing bars 121 at both ends of the connecting beam body. The protruding reinforcing bars 121 extend into the reinforcing bar installation sleeve 1122 and are connected and fixed to the corner connecting block 112 by high-strength non-shrink grout. The precast connectable foundation 110 and the precast connecting beam 120 are alternately connected to form the battery compartment installation position 130.

[0052] The two ends of the L-shaped mounting sleeve are fixedly connected to two adjacent prefabricated connecting beams 120 respectively. The L-shaped mounting sleeve is made of ductile iron, and the minimum inner diameter of the L-shaped mounting sleeve - the nominal diameter of the protruding reinforcing bar 121 is ≥10mm.

[0053] In this embodiment, there are eight L-shaped mounting sleeves. Along the axial direction of the prefabricated connectable foundation 110, the eight L-shaped mounting sleeves are distributed in the upper, middle, and lower layers of the corner connecting block 112. The upper and lower layers each have three L-shaped mounting sleeves, and the middle layer has two L-shaped mounting sleeves. The L-shaped mounting sleeves in each layer are evenly spaced to ensure a stable connection between the prefabricated connectable foundation 110 and the prefabricated connecting beam 120.

[0054] In this embodiment, there are four prefabricated connectable foundations 110 and four prefabricated connecting beams 120. Therefore, the closed structure formed by the alternating connection of the prefabricated connectable foundations 110 and the prefabricated connecting beams 120, i.e., the planar shape of the battery compartment mounting position 130, is quadrilateral.

[0055] This embodiment also provides a construction method for the prefabricated energy storage battery compartment foundation structure 100, including the following steps: S01. After the site of the energy storage station is leveled, the foundation pit of the battery compartment is excavated to the designated elevation according to the design requirements. Then, the foundation pad layer is laid in sequence below the battery compartment installation area as the area to be constructed.

[0056] S02. Hoist the prefabricated connectable foundation 110 to the construction area, and then hoist the prefabricated connecting beam 120 to the positioning of the reinforcing steel sleeve 1122 of the protruding steel bar 121 of the prefabricated connecting beam 120 and the corner connecting block 112.

[0057] During the hoisting process, the center horizontal height of the precast connecting beam 120 must be flush with the center horizontal section of the corner connecting block 112. At the same time, it must be ensured that the longitudinal outward reinforcing bars 121 of the precast connecting beam 120 are accurately inserted into the reinforcing bar installation sleeve 1122 of the corner connecting block 112 to achieve precise splicing.

[0058] S03. Following the same construction process, the second precast connectable foundation 110 is hoisted to the other end of the precast connecting beam 120 for positioning, ensuring that the longitudinal outward reinforcing bars 121 at this end of the precast connecting beam 120 are accurately inserted into the reinforcing bar installation sleeve 1122 of the corner connecting block 112 at the top of the precast connectable foundation 110, thus forming a frame structure system consisting of two independent precast connectable foundations 110 and one precast connecting beam 120.

[0059] S04. High-strength, non-shrink grout should be injected into the annular gap between the longitudinally extending reinforcing bars 121 and the reinforcing bar installation sleeves 1122, ensuring 100% compaction during injection. After grouting, the planar positioning and vertical elevation of the frame structure must be checked, and the deviation should be controlled within ±2mm of the design value. After passing quality inspection, allow it to cure statically until the grout reaches the design strength.

[0060] S05. Hoist the second precast connecting beam 120 to the corner connecting block 112 of one of the precast connectable foundations 110 in step S03, ensuring precise positioning of the precast connecting beam 120 and the corner connecting block 112. Then, accurately insert the protruding reinforcing bars 121 into the reinforcing bar installation sleeve 1122. During construction, a fine-tuning device is required to achieve millimeter-level positioning. After ensuring complete sealing of the contact surfaces, high-strength non-shrink grout is poured for fixation, so that the two precast connecting beams 120 are installed at a 90° angle.

[0061] S06. Repeat steps S02 to S05 to complete the hoisting of all four prefabricated connectable foundations 110 and four prefabricated connecting beams 120. Through precise docking of the sleeve-reinforcement nodes of the corner connecting blocks 112, a closed rectangular prefabricated foundation structure system is finally formed, providing a support platform for the installation of the upper battery compartment.

[0062] This invention provides a prefabricated energy storage battery compartment foundation structure 100 and its construction method. By prefabricating precast connectable foundations 110 and precast connecting beams 120, it allows for the design of individual battery compartment modules, facilitating standardized battery compartment installation design. Simultaneously, factory-prefabricated production ensures standardized finished products and controllable quality. Using prefabricated connectable foundations 110 and precast connecting beams 120 for prefabricated construction reduces the operational requirements for hoisting equipment and significantly shortens the foundation construction cycle, meeting the rapid commissioning needs of applicable energy storage power station projects. Furthermore, after comprehensive evaluation of its strength performance and the load requirements of new application conditions, the prefabricated energy storage battery compartment foundation structure 100 can be disassembled, reassembled, and recycled, achieving efficient component recycling and resource closure, and promoting the green and low-carbon transformation of the energy storage power station civil engineering industry.

[0063] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A prefabricated energy storage battery compartment basic structure, characterized in that, This includes precast connectable foundations, precast connecting beams, and high-strength, non-shrink grouting material; The prefabricated connectable foundation includes a prefabricated foundation and a corner connecting block. The corner connecting block is a reinforced concrete block. The top of the prefabricated foundation is fixedly connected to the corner connecting block by steel bars. The corner connecting block is provided with at least two diagonal closed stirrups arranged in a 90° rotation direction around the inner corner point of the corner connecting block. The corner connecting block is also pre-embedded with a steel bar installation sleeve. The prefabricated connecting beam includes a connecting beam body, both ends of which are provided with protruding reinforcing bars. The protruding reinforcing bars extend into the reinforcing bar installation sleeve and are connected and fixed to the corner connecting block by the high-strength non-shrink grout. The prefabricated connectable foundation and the prefabricated connecting beam are alternately connected to form the battery compartment installation position.

2. The prefabricated energy storage battery compartment basic structure according to claim 1, characterized in that, The multiple stirrups are evenly distributed at angles inside the corner connecting block, rotating 90° around the inner corner point of the corner connecting block.

3. The prefabricated energy storage battery compartment basic structure according to claim 1 or 2, characterized in that, The number of stirrups is 2 to 8.

4. The prefabricated energy storage battery compartment basic structure according to claim 1, characterized in that, The steel bar installation sleeve is an L-shaped installation sleeve, and the two ends of the L-shaped installation sleeve are respectively fixedly connected to two adjacent precast connecting beams.

5. The prefabricated energy storage battery compartment basic structure according to claim 4, characterized in that, The L-shaped mounting sleeve is made of ductile iron, and the minimum inner diameter of the L-shaped mounting sleeve minus the nominal diameter of the protruding reinforcing bar is ≥10mm.

6. The prefabricated energy storage battery compartment basic structure according to claim 4 or 5, characterized in that, The number of L-shaped mounting sleeves is 2 to 15.

7. The prefabricated energy storage battery compartment basic structure according to claim 1, characterized in that, The prefabricated foundation includes stepped short columns and / or tapered short columns.

8. The prefabricated energy storage battery compartment basic structure according to claim 1, characterized in that, The number of prefabricated connectable foundations and prefabricated connecting beams is the same, ranging from 3 to 12.

9. A construction method for a prefabricated energy storage battery compartment foundation structure as described in any one of claims 1 to 8, characterized in that, The process includes hoisting the prefabricated connectable foundation to the construction area, then hoisting the prefabricated connecting beam to the positioning of the protruding reinforcing bars of the prefabricated connecting beam and the reinforcing bar installation sleeve of the corner connecting block, then hoisting another prefabricated connectable foundation to the positioning of the protruding reinforcing bars at the other end of the prefabricated connecting beam, and injecting the high-strength non-shrink grout into the reinforcing bar installation sleeve; and sequentially and alternately connecting the prefabricated connecting beam and the corner connecting block according to the above process to form the battery compartment installation position.

10. The construction method according to claim 9, characterized in that, The density of the high-strength, non-shrink grout is ≥99.9%.

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