Microgrid energy storage system suitable for agricultural production scene

Abstract

The utility model relates to a micro-grid energy storage system suitable for an agricultural production scene, which comprises an energy storage prefabricated cabin, an overhead foundation and a concrete cushion layer paved on the ground, the overhead foundation comprises a steel structure framework parallel to the bottom face of the energy storage prefabricated cabin and steel structure supporting legs used for supporting the framework, the bottoms of the supporting legs are detachably fixed to the top of the concrete cushion layer, the tops of the supporting legs are detachably fixed to the bottom of the framework, and the top of the framework is detachably and fixedly connected with the bottom of the energy storage prefabricated cabin. The energy storage prefabricated cabin is installed through the overhead foundation, compared with a traditional cement masonry foundation, the stability is higher, the overhead foundation can be prefabricated in a factory and directly transported to an installation site to be assembled, the construction period can be shortened, and the overhead foundation is not limited by terrains.

Description

Technical Field

[0001] The utility model relates to the construction of a renewable energy microgrid, and in particular to a microgrid energy storage system suitable for agricultural production scenarios. Background Art

[0002] As the application technology of renewable energy microgrids gradually matures, the establishment of agricultural photovoltaic complementary power stations in the field of agricultural production can provide energy support for new agricultural production, reduce the pressure of traditional energy, promote energy conservation and emission reduction, and improve the ecological environment. Although renewable energy microgrids have been well applied in various fields, there are not many studies on the planning and construction of renewable energy microgrids in agricultural production scenarios in the existing technology.

[0003] The construction site in the agricultural production scenario has its own characteristics, such as scattered distribution of arable land, great differences in arable land terrain, and limited arable land area. When constructing energy microgrids in agricultural production scenarios, the installation of energy storage equipment and photovoltaic brackets needs to take into account the above-mentioned characteristics of arable land and minimize the occupation of arable land area. The installation of energy storage equipment in energy microgrids in other application fields usually requires the construction of a cement foundation at the construction site, and then the container-type energy storage equipment is installed on the cement foundation. The existing masonry structure has high requirements for stability when constructed on arable land, is difficult to construct, has a long construction period, and is easily restricted by the terrain. Utility Model Content

[0004] The utility model discloses a microgrid energy storage system suitable for agricultural production scenarios. The system adopts an overhead foundation to install a prefabricated energy storage cabin. Compared with a traditional cement masonry foundation, the system has higher stability, can be prefabricated, has a short construction period, and is not restricted by terrain.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A microgrid energy storage system suitable for agricultural production scenarios, comprising:

[0007] A prefabricated energy storage cabin, in which energy storage equipment is installed;

[0008] An overhead foundation, comprising a steel structure frame arranged parallel to the bottom surface of the energy storage prefabricated cabin and steel structure legs for supporting the frame;

[0009] and a concrete pad laid on the ground;

[0010] The bottom of the supporting leg is detachably fixed to the top of the concrete cushion layer, the top of the supporting leg is detachably fixed to the bottom of the frame, and the top of the frame is detachably fixedly connected to the bottom of the energy storage prefabricated cabin.

[0011] Furthermore, the skeleton is a rectangular frame structure, the skeleton includes longitudinal beams and transverse beams connected to each other, the legs include columns, upper flange plates and lower flange plates, the upper flange plates and lower flange plates are respectively welded to the upper and lower ends of the columns, holes are respectively opened on the edges of the upper flange plates and the lower flange plates, and the upper flange plates are fixedly connected to the longitudinal beams of the skeleton with anchor bolts.

[0012] Furthermore, a plurality of concrete strips are arranged at intervals on the top of the concrete cushion layer, the concrete strips protrude from the top surface of the concrete cushion layer, and the lower flange plate is fixed to the top of the concrete strips by anchor bolts.

[0013] Furthermore, the height of the elevated foundation is not less than 1 meter.

[0014] Furthermore, the height of the concrete strip relative to the concrete cushion layer is not less than 150 mm.

[0015] Furthermore, the longitudinal beams, cross beams and columns are all made of H-shaped steel.

[0016] Furthermore, the cross beam is a three-span continuous beam.

[0017] The microgrid energy storage system disclosed in the utility model is suitable for the construction of prefabricated energy storage cabin foundations that are restricted by terrain and are inconvenient to construct cement masonry foundations or are constrained by construction periods. The utility model uses an overhead foundation to install the prefabricated energy storage cabin, which is more stable than traditional cement masonry foundations. The overhead foundation can be prefabricated in a factory and directly transported to the installation site for assembly, which helps to shorten the construction period and is not restricted by terrain. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the energy storage system in the embodiment;

[0019] Figure 2 for Figure 1 Structural diagram of the suspended foundation;

[0020] Figure 3 This is a schematic diagram of the structure of the central column in the overhead foundation.

[0021] Description of Figure Numbers:

[0022] 1. Concrete cushion; 2. Concrete strip; 3. Prefabricated energy storage cabin; 4. Frame; 41. Crossbeam; 42. Longitudinal beam; 5. Leg; 51. Column; 52. Upper flange plate; 53. Lower flange plate. Implementation

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0024] This embodiment discloses a microgrid energy storage system suitable for agricultural production scenarios, such as Figures 1 to 3 As shown, it mainly includes a prefabricated energy storage cabin 3, an overhead foundation, and a concrete cushion layer 1 laid on the ground. The overhead foundation is assembled from a steel structure skeleton 4 and a steel structure leg 5. The two components can be prefabricated in the factory and can be conveniently transported to the installation site for direct assembly. The overhead foundation using a steel structure has better stability and can better ensure stable support for the energy storage equipment on the relatively soft arable land at the installation site of the energy storage equipment. The prefabricated energy storage cabin 3 of this embodiment adopts a container-type structure, in which an energy storage device is installed. The prefabricated energy storage cabin 3 is placed on top of the skeleton 4 by hoisting at the construction site, and the prefabricated energy storage cabin 3 is fixed to the skeleton 4 together.

[0025] like Figure 2 As shown, the skeleton 4 in the overhead foundation is a rectangular frame structure, which is welded by a longitudinal beam 42 and a cross beam 41. The length and width of the skeleton 4 are adaptively designed according to the size of the energy storage prefabricated cabin 3. The longitudinal beam 42 and the cross beam 41 in this embodiment are both made of H-shaped steel, and the cross beam 41 is a three-span continuous beam with better support strength. The longitudinal beam 42 is provided with mounting holes in advance to facilitate the assembly and connection with the outrigger 5 at the construction site.

[0026] The bottom of the frame 4 is supported and fixed by a plurality of legs 5. The number of legs 5 is designed according to the size of the frame 4. In the drawings of this embodiment, eight legs are used as an example. Figure 3 As shown, it is assembled by a column 51 located in the middle, an upper flange plate 52 located at the top of the column 51, and a lower flange plate 53 located at the bottom of the column 51. Among them, the column 51 is also made of H-shaped steel, and the upper flange plate 52 and the lower flange plate 53 are welded to the column 51 in advance in the factory to connect the three together, and multiple stiffening plates are welded around the upper flange plate 52 and the column 51, and around the lower flange plate 53 and the column 51. Holes are opened around the edges of the upper flange plate 52 and the lower flange plate 53 to facilitate assembly and fixation at the construction site.

[0027] The frame 4 and the legs 5 are not assembled and connected in the factory for easy transportation, and are assembled after being transported to the construction site. During assembly, the position of each leg 5 is arranged according to the designed spacing, and the upper flange plate 52 of each leg 5 is fixed to the bottom of the longitudinal beam 42 of the frame 4 by anchor bolts. After assembly, an overhead foundation is formed with an overall height of not less than 1 meter.

[0028] After the installation location of the energy storage equipment is determined at the construction site, excavation is carried out in the construction area, and a flat concrete cushion layer 1 is poured. A plurality of concrete strips 2 protruding from the top surface of the concrete cushion layer 1 are arranged at intervals on the top of the concrete cushion layer 1. The height of the concrete strips 2 relative to the top surface of the concrete cushion layer 1 is not less than 150 mm. The concrete strips 2 are in the same direction as the crossbeam 41 of the skeleton 4. The lower flange plate 53 of each leg 5 is fixed to the top of the concrete strip 2 by anchor bolts. Due to the height of the concrete strips 2, the bottom of the steel structure leg 5 is prevented from being soaked in water and corroded. After the overhead foundation is installed, the energy storage prefabricated cabin 3 is hoisted and placed on the top of the skeleton 4. The bottom of the energy storage prefabricated cabin 3 is fixed to the skeleton 4 with fasteners to complete the installation of the entire energy storage system.

[0029] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A microgrid energy storage system suitable for agricultural production scenarios, characterized in that: include: A prefabricated energy storage cabin, in which energy storage equipment is installed; An overhead foundation, comprising a steel structure frame arranged parallel to the bottom surface of the energy storage prefabricated cabin and steel structure legs for supporting the frame; and a concrete pad laid on the ground; The bottom of the supporting leg is detachably fixed to the top of the concrete cushion layer, the top of the supporting leg is detachably fixed to the bottom of the frame, and the top of the frame is detachably fixedly connected to the bottom of the energy storage prefabricated cabin.

2. A microgrid energy storage system suitable for agricultural production scenarios according to claim 1, characterized in that: The skeleton is a rectangular frame structure, the skeleton includes longitudinal beams and transverse beams connected to each other, the legs include columns, upper flange plates and lower flange plates, the upper flange plates and lower flange plates are respectively welded to the upper and lower ends of the columns, holes are respectively opened on the edges of the upper flange plates and the lower flange plates, and the upper flange plates are fixedly connected to the longitudinal beams of the skeleton with anchor bolts.

3. A microgrid energy storage system suitable for agricultural production scenarios according to claim 2, characterized in that: A plurality of concrete strips are arranged at intervals on the top of the concrete cushion layer. The concrete strips protrude from the top surface of the concrete cushion layer, and the lower flange plate is fixed to the top of the concrete strips by anchor bolts.

4. According to claim 1, a microgrid energy storage system suitable for agricultural production scenarios is characterized by: The height of the elevated foundation is not less than 1 meter.

5. According to claim 3, a microgrid energy storage system suitable for agricultural production scenarios is characterized by: The height of the concrete strip relative to the concrete cushion layer is not less than 150 mm.

6. A microgrid energy storage system suitable for agricultural production scenarios according to claim 2, characterized in that: The longitudinal beams, cross beams and columns are all made of H-shaped steel.

7. A microgrid energy storage system suitable for agricultural production scenarios according to claim 2, characterized in that: The cross beam is a three-span continuous beam.

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