Detachable foundation structure for container energy storage system

Abstract

The utility model relates to the technical field of container energy storage systems, in particular to a detachable foundation structure for a container energy storage system, which comprises a bearing frame and a base platform, the bearing frame comprises a bearing frame and a support component, and the upper part of the support component is detachably connected with the lower part of the bearing frame; the lower portion of the supporting assembly is detachably connected with the base platform, and the base platform comprises a plurality of base units which are mutually overlapped and interlocked in the horizontal direction. The use amount of bolts is greatly reduced, the construction steps are simplified, the construction time is shortened, the labor cost is reduced, a post-cast strip is not needed after the base platform is installed, the base platform can be rapidly disassembled and assembled without residues, and the foundation structure is suitable for the requirement for rapid construction of the container energy storage system. The infrastructure construction cost of container energy storage systems of different scales is reduced to the maximum extent, and the requirements for expandability, mobility and rapid construction of the container type energy storage system are better met.

Description

Technical Field

[0001] The utility model relates to the technical field of container energy storage systems, in particular to a detachable foundation structure for a container energy storage system. Background Technique

[0002] The containerized energy storage system, as the name implies, installs electrochemical energy storage units in standardized containers, which contain battery modules, battery management systems (BMS), energy management systems (EMS), energy storage converters (PCS), thermal management systems, and other control hardware. The containerized energy storage system is commonly used in application scenarios such as power grid regulation, renewable energy storage, emergency power supply, commerce and industry. Specifically, the containerized energy storage system can help the power grid balance supply and demand, especially provide additional power during peak hours, or store excess power during off-peak hours. It can also store the power generated when the wind or sunlight is sufficient for emergencies. In addition, in the event of natural disasters or other emergencies, it can be quickly deployed as an emergency power supply to power rescue equipment.

[0003] However, at present, the foundation construction of containerized energy storage systems mostly uses traditional prefabricated foundations and cast-in-place foundations. The traditional prefabricated foundation mainly relies on a large number of bolt connections, with insufficient overall stability, complex connection structures, cumbersome steps, high construction difficulty, and high time costs. The cast-in-place foundation has poor construction flexibility and also requires a large amount of time costs. The post-cast strip cannot be removed and adjusted, restricting the application scenarios, and the foundation construction cannot meet the requirements of the scalability, mobility, and rapid deployment of containerized energy storage systems. Content of the Utility Model

[0004] The purpose of the utility model is to provide a detachable foundation structure for a container energy storage system in view of the deficiencies of the prior art, so as to solve the problems existing in the above-mentioned prior art that the traditional prefabricated foundation relies on a large number of bolt connections, with insufficient overall stability, complex connection structures, cumbersome steps, resulting in high construction difficulty and high time costs, and the cast-in-place foundation has poor construction flexibility and also requires a large amount of time costs, and the post-cast strip cannot be removed and adjusted, restricting the application scenarios.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A detachable foundation structure for a container energy storage system includes a carrier frame for carrying a container body and a base platform located below the carrier frame. The carrier frame includes a carrier frame and a support assembly provided below the carrier frame. The upper part of the support assembly is detachably connected to the carrier frame. The base platform includes a plurality of base units that overlap and interlock with each other in the horizontal direction.

[0007] Furthermore, the base unit is provided with a plurality of interlocking surfaces in the horizontal direction, and two adjacent interlocking surfaces on adjacent sides are complementary structures.

[0008] Furthermore, the base unit is respectively provided with connecting through holes in the directions of a plurality of opposite-side interlocking surfaces, and the plurality of base units are tightly fitted and overlapped by axially penetrating the connecting through holes of the plurality of base units with a connecting wire harness.

[0009] Furthermore, the support assembly includes a support base detachably connected to the base unit, a support plate detachably connected to the carrying frame, and a damping spring shock absorber connected between the support base and the support plate.

[0010] Furthermore, the support assembly includes an adjusting member for adjusting the support height of the support plate.

[0011] Furthermore, the adjusting member includes an adjusting screw vertically arranged on the support base, an adjusting support block is threadedly connected to the adjusting screw, and the adjusting support block abuts against the bottom of the damping spring shock absorber.

[0012] Furthermore, there are a plurality of the adjusting screws, and they are respectively arranged at intervals in the horizontal circumferential direction of the support base.

[0013] Furthermore, the support base is convexly provided with a flange in the horizontal circumferential direction, and the flange is screwed to the base unit.

[0014] Furthermore, a rail elastic fastener is provided on the support plate, and the rail elastic fastener includes a fastening member and an elastic rail clip. One end of the elastic rail clip is buckled on the support plate, and the other end is buckled on the carrying frame.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] The foundation structure provided by the present utility model greatly reduces the usage amount of bolts, simplifies the construction steps, significantly shortens the construction time, reduces the labor cost, and there is no need for a post-cast strip after installing the base platform. The base platform can be quickly disassembled and installed without residue, and it is more suitable for the rapid construction requirements of the container energy storage system; the present utility model can not only adapt to the standard 20-foot container energy storage system, but also quickly adapt to the 40-foot container energy storage system through simple and convenient transformation methods such as extension, greatly improving the versatility and practicality of the foundation structure, and minimizing the infrastructure construction costs of different-scale container energy storage systems, and better matching the requirements of scalability, mobility, and rapid construction of the containerized energy storage system.

[0017] The utility model adopts a bearing frame, a support component, and a base platform that are detachably connected to each other. The base platform is composed of multiple base units that are overlapped and interlocked with each other, replacing the traditional foundation structure. The tight bite between the base units and the stable connection of the support components improve the convenience of combined lap joint and overall installation and disassembly while greatly enhancing the stability of the foundation structure, effectively resisting vibration loads and external wind loads during the operation of the container energy storage system, reducing the risk of equipment failure caused by unstable foundation structure, and ensuring the long-term reliable operation of the container energy storage system. In addition, an adjusting member for adjusting the support height is added in the support component. While ensuring that each support plate is closely attached to the bearing frame through the adjusting member, the support base is also closely attached to the base platform, avoiding the appearance of an overhead layer between the bearing frame and the support plate or between the support base and the base platform due to design, installation and construction errors or other reasons, and further ensuring the overall stability of the foundation structure. At the same time, a damping spring shock absorber is added in the support component to provide strong earthquake protection for the container energy storage system and ensure the safe and stable operation of the equipment in earthquake-prone areas. Description of the Drawings

[0018] Figure 1 Fig. is a use state diagram of a detachable foundation structure for a container energy storage system provided by the utility model;

[0019] Figure 2 Fig. is an overall structure schematic diagram of a detachable foundation structure for a container energy storage system provided by the utility model;

[0020] Figure 3 Fig. is a connection structure schematic diagram of a support component and a bearing frame in a detachable foundation structure for a container energy storage system provided by the utility model;

[0021] Figure 4 Fig. is a structure schematic diagram of a support component in a detachable foundation structure for a container energy storage system provided by the utility model;

[0022] Figure 5 Fig. is a structure schematic diagram of a base platform composed of four interlocking surface base units in a detachable foundation structure for a container energy storage system provided by the utility model;

[0023] Figure 6 Fig. is a structure schematic diagram of a base platform composed of six interlocking surface base units in a detachable foundation structure for a container energy storage system provided by the utility model;

[0024] Figure 7 Fig. is a structure schematic diagram of four interlocking surface base units in a detachable foundation structure for a container energy storage system provided by the utility model;

[0025] Figure 8The top view of four interlocking surface base units in a detachable foundation structure for a container energy storage system provided by the present utility model.

[0026] Among them, the reference numerals are:

[0027] 1. Base platform; 11. Base unit; 12. Connecting through hole; 13. Interlocking surface; 2. Bearing frame; 3. Support assembly; 31. Support seat; 311. Flange; 32. Support plate; 33. Damping spring shock absorber; 34. Rail elastic fastener; 341. Elastic strip; 342. Fastening member; 36. Adjusting member; 361. Adjusting screw; 362. Adjusting support block; 4. Container body. Detailed implementation manners

[0028] In order to enable those skilled in the art to better understand the solution of this application, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of this application.

[0029] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0030] It should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to this application.

[0031] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0032] For the convenience of understanding, please refer to Figure 1 and Figure 8, this embodiment provides a detachable foundation structure for a container energy storage system, including a bearing frame and a base platform 1. The bearing frame includes a plurality of bearing frames 2 fixedly connected to each other on the same horizontal plane. Preferably, the bearing frame 2 is formed by welding a plurality of I-beams fixedly in the same horizontal direction. Above the bearing frame 2 is used to place and install the container body 4. A plurality of support components 3 are detachably connected below the bearing frame 2 and are spaced apart from each other. The support components 3 are used to support the bearing frame 2. The base platform 1 includes a plurality of base units 11, and the plurality of base units 11 can be mutually overlapped and interlocked in the horizontal direction. The support components 3 are detachably connected to some of the base units 11 in the base platform 1.

[0033] The base unit 11 is provided with a plurality of interlocking surfaces 13 in the horizontal direction. Preferably, the base unit 11 is provided with four or six interlocking surfaces 13 in the horizontal direction. When there are four interlocking surfaces 13, the two adjacent interlocking surfaces 13 on the adjacent sides are complementary structures, and the two interlocking surfaces 13 on the opposite sides are mirror-symmetrical structures; when there are six interlocking surfaces 13, the two adjacent interlocking surfaces 13 on the adjacent sides are complementary structures, and the two interlocking surfaces 13 on the opposite sides are also complementary structures. The base unit 11 is respectively provided with a horizontal connection through-hole 12 in the direction of a plurality of opposite-side interlocking surfaces 13. Specifically, when there are four interlocking surfaces 13, there are two in the direction of the opposite-side interlocking surfaces 13, that is, there are two horizontal connection through-holes 12; when there are six interlocking surfaces 13, there are three opposite-side interlocking surfaces 13, that is, there are three horizontal connection through-holes 12. The tight fitting and overlapping of the plurality of base units 11 are realized by axially penetrating the connection through-holes 12 of the plurality of base units 11 with a connecting wire bundle (not shown in the figure), further improving the firmness and overall stability of the base platform 1. Specifically, in this embodiment, the base platform 1 is composed of 77 base units 11 with four interlocking surfaces 13 overlapping each other. Among them, there are 11 columns of base units 11 in the horizontal longitudinal direction and 7 rows of base units 11 in the horizontal transverse direction. The two connection through-holes 12 on one base unit 11 are respectively horizontal longitudinal and horizontal transverse. Through 11 connecting wire bundles, they respectively penetrate the horizontal longitudinal connection through-holes 12 of 7 base units 11 located in the same horizontal longitudinal direction (the same column) in sequence in the horizontal longitudinal direction, and through 7 connecting wire bundles, they respectively penetrate the horizontal transverse connection holes of 11 base units 11 located in the same horizontal transverse direction (the same row) in sequence in the horizontal transverse direction, and the two ends of the connecting wire bundle are tightened and fixed. Preferably, the connection through-holes 12 can communicate with each other in the middle of the base unit 11, that is, the connection through-holes 12 of the base unit 11 are all located in the same vertical direction. Further, the connecting wire bundle is a steel strand.

[0034] The support assembly 3 includes a support base 31 at the lower part, a support plate 32 at the upper part, and a damping spring shock absorber 33 in the middle. The resonance frequency of the container body 4 in the seismic wave is filtered out by the damping spring shock absorber 33 to reduce the vibration of the equipment. Specifically, the damping spring shock absorber 33 includes a shock-absorbing screw fixedly arranged below the support plate 32 and a shock-absorbing base arranged above the support base 31. A shock-absorbing nut is threadedly connected to the shock-absorbing screw. A connecting piece abuts against the lower part of the shock-absorbing nut. One end of the damping spring is fixedly connected to the lower part of the connecting piece, and the other end of the damping spring is fixedly connected to the shock-absorbing base. The damping coefficient of the damping spring is adjusted by screwing down the shock-absorbing nut. Vertical limiting rods are respectively arranged on the horizontal two sides of the damping spring, and the limiting rods are fixedly connected to the support plate 32. The movement direction of the damping spring is ensured to be the vertical direction by the two vertically arranged limiting rods. The support base 31 is detachably connected to the base unit 11. Specifically, a plurality of flanges 311 protrude outwards in the horizontal circumferential direction of the support base 31, and the flanges 311 and the base unit 11 are connected by screws to relatively fix the support base 31 and the base unit 11. The support plate 32 is detachably connected to the carrying frame 2. Specifically, the support plate 32 and the carrying frame 2 are detachably connected by a rail elastic fastener 34. More specifically, the rail elastic fastener 34 includes an elastic strip 341 and a fastening member 342. The fastening member 342 includes a vertical fastening screw fixedly arranged on the support plate 32, a fastening nut threadedly connected to the fastening screw, and a gasket movably sleeved outside the fastening screw. The upper part of the gasket abuts against the fastening nut, and the lower part of the gasket abuts against the middle part of the elastic strip 341. One end of the elastic strip 341 is clamped with the support plate 32, and the other end of the elastic strip 341 is clamped with a cushion block on the carrying frame 2. By screwing down the fastening nut, the gasket transmits the acting force downwards, so that the elastic strip 341 is pre-deformed and stores strain energy. The two ends of the elastic strip 341 respectively press the support plate 32 and the carrying frame 2 to relatively fix the support plate 32 and the carrying frame 2. The adjusting member includes four vertical adjusting screws 361 spaced apart in the horizontal circumferential direction of the support base 31. The adjusting screws 361 penetrate through the shock-absorbing base of the damping spring shock absorber 33 from bottom to top. An adjusting support block 362 is threadedly connected to the adjusting screws 361, and the upper part of the adjusting support block 362 abuts against the bottom of the damping spring shock absorber 33. In the initial state, the lower part of the adjusting support block 362 abuts against the support base 31. By synchronously rotating the four adjusting support blocks 362 on one support assembly 3, the damping spring shock absorber 33 is driven to move in the vertical direction to ensure close fit between the base platform 1 and each support base 31, and to avoid the occurrence of an overhead layer between the support base 31 and the base platform 1, resulting in unstable connection.

[0035] The installation method of the utility model:

[0036] Step 1: Remove the surface debris, conduct a geological survey, ensure that the site flatness ≤ 10 mm, and divide the grid positions of the base platform 1 according to the capacity requirements of the container body 4.

[0037] Step 2: Excavate the topsoil and compact it to the design elevation, then lay a C15 concrete cushion with a thickness of 10 to 20 cm, ensuring a levelness of 1:1000. After the cushion begins to set, perform leveling and slope finding to meet the laying requirements of the pedestal platform 1.

[0038] Step 3: First, position the pedestal units 11 at the four corners, and then lay the remaining pedestal units 11 to the predetermined installation positions. Pass multiple connection wire harnesses through the pedestal platform 1 in multiple directions and lock and fix both ends of the connection wire harnesses, thus completing the installation of the pedestal platform 1. (This step can also be carried out by threading the wires first and then performing the overall laying, and there is no limitation here.)

[0039] Step 4: After welding and fixing multiple I-beams to form the load-bearing frame 2 according to the design span, complete the relative fixed installation of the load-bearing frame 2 and multiple support components 3 through multiple rail elastic fasteners 34, thus completing the installation of the load-bearing frame. (After the spring strips 341 at each place are closed, maintain a preloading state of ±2 mm to further avoid the occurrence of slipping.)

[0040] Step 5: Hoist the entire load-bearing frame above the pedestal platform 1, make the bottom of each support component 3 closely fit the pedestal platform 1 through the adjusting member 36, and achieve the relative fixed installation of the support component 3 and the pedestal platform 1 through screw connection, that is, achieve the relative fixation of the load-bearing frame and the pedestal platform 1.

[0041] Step 6: Hoist the container body 4 above the load-bearing frame and perform relative fixed installation of the container body 4 and the load-bearing frame 2.

[0042] Step 7: Backfill the soil and compact it layer by layer to the original ground level.

[0043] Although the present utility model has been described using the above preferred embodiments, it is not intended to limit the protection scope of the present utility model. Any person skilled in the art, without departing from the spirit and scope of the present utility model, making various changes and modifications to the above embodiments still belongs to the protection scope of the present utility model.

Claims

1. A detachable foundation structure for a container energy storage system, characterized in that It includes a carrier frame for carrying the container body (4) and a base platform (1) located below the carrier frame. The carrier frame includes a carrier frame (2) and a support assembly (3) provided below the carrier frame (2). The upper part of the support assembly (3) is detachably connected to the carrier frame (2). The base platform (1) includes a plurality of base units (11) that overlap and interlock with each other in the horizontal direction; The base unit (11) is provided with a plurality of interlocking surfaces (13) in the horizontal direction, and the two adjacent interlocking surfaces (13) on the adjacent sides are complementary structures; The support assembly (3) includes an adjusting member (36) for adjusting the support height of the support assembly (3).

2. The detachable foundation structure for a container energy storage system according to claim 1, characterized in that, The base unit (11) is respectively provided with connection through holes (12) in the directions of a plurality of opposite-side interlocking surfaces (13). The plurality of base units (11) are tightly fitted and overlapped by axially penetrating the connection through holes (12) of the plurality of base units (11) with a connecting wire harness.

3. The detachable foundation structure for a container energy storage system according to claim 1, characterized in that, The support assembly (3) includes a support base (31) detachably connected to the base unit (11) and a support plate (32) detachably connected to the carrier frame (2). A damping spring shock absorber (33) is connected between the support base (31) and the support plate (32).

4. The detachable foundation structure for a container energy storage system according to claim 3, wherein, The adjusting member (36) includes an adjusting screw rod (361) vertically provided on the support base (31). An adjusting support block (362) is threadedly connected to the adjusting screw rod (361), and the adjusting support block (362) abuts against the bottom of the damping spring shock absorber (33).

5. The detachable foundation structure for a container energy storage system according to claim 4, wherein, There are a plurality of the adjusting screw rods (361) and they are respectively arranged at intervals in the horizontal circumference of the support base (31).

6. The detachable foundation structure for a container energy storage system according to claim 3, characterized in that, The support base (31) is provided with a flange (311) protruding in the horizontal circumference, and the flange (311) is screwed to the base unit (11).

7. The detachable foundation structure for a container energy storage system according to claim 3, characterized in that, A rail elastic fastener (34) is provided on the support plate (32). The rail elastic fastener (34) includes a fastening member (342) and an elastic strip (341). One end of the elastic strip (341) is clamped on the support plate (32), and the other end is clamped on the carrier frame (2).

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