Buried energy storage cabin for source network load storage

Abstract

The invention discloses a buried energy storage cabin for source network load storage, which comprises an inner cabin for placing a battery, the inner cabin is buried underground, the buried energy storage cabin also comprises a bottom plate, the inner cabin is placed on the bottom plate, the bottom plate is also provided with an upper support detection plate, the upper support detection plate is located above the inner cabin, and the upper support detection plate is located above the inner cabin. A detection space is formed between the inner cabin and the upper support detection plate, and a detection part used for detecting the downward concave deformation of the upper support detection plate is arranged in the detection space; the air inlet pipe and the air outlet pipe are communicated with the inner cabin, and the ends, away from the inner cabin, of the air inlet pipe and the air outlet pipe are located above the ground. The buried energy storage cabin is pioneering provided, and on the premise that the ventilation effect of the energy storage cabin is guaranteed, early warning of deformation of the energy storage cabin under downward pressure can be achieved; furthermore, the energy storage cabin is convenient for workers to maintain.

Description

Technical Field

[0001] The present invention relates to the technical field related to power grid energy storage equipment, and in particular to an underground energy storage cabin for source-grid-load storage. Background Art

[0002] Source-grid-load-storage is a new type of power operation mode with "power source, power grid, load, and energy storage" as the overall planning. Source-grid-load-storage can accurately control the power load and energy storage resources in the social power system, effectively solve the system fluctuations caused by the increase in the proportion of new energy power generation in the power system, improve the ability to absorb new energy power generation, and improve the safe operation level of the power grid. At present, energy storage cabins are used to store the excess electricity generated by power sources. The excess electricity is usually stored in batteries. By installing batteries in energy storage cabins and equipping them with corresponding electrical components, an energy storage device that can be used at any time can be formed.

[0003] It is well known that since batteries are placed in the energy storage cabin, a large amount of heat will be generated when in use, so the heat dissipation structure in the energy storage cabin is relatively important. As disclosed in the Chinese patent application publication number: CN 117896944A, entitled "Energy Storage Cabin for Source-Grid-Load Energy Storage", the energy storage cabin structure is provided with an air inlet, an air outlet and a fan to achieve heat dissipation of the energy storage cabin. However, existing energy storage cabins are generally installed on the ground, which occupies the ground space to a certain extent, and requires additional corresponding infrastructure to prevent direct sunlight from shining on the energy storage cabin, and increases the material consumption to a certain extent. Summary of the invention

[0004] In order to solve the technical problems existing in the background technology, the present invention proposes that the energy storage cabin is set underground, but how to ensure the ventilation of the energy storage cabin; on the other hand, because there are batteries in the energy storage cabin, if objects on the ground exert a certain degree of compression on the energy storage cabin, the energy storage cabin is gradually squeezed, which can easily cause squeezing of the batteries. How to ensure the safety performance of the energy storage cabin? For this reason, the present invention provides an underground energy storage cabin for source-grid-load storage that can ensure ventilation and generate an early warning when the energy storage cabin undergoes a large deformation.

[0005] The present invention proposes an underground energy storage cabin for source-grid-load storage, comprising an inner cabin for placing batteries, the inner cabin being buried underground, and further comprising a bottom plate, the inner cabin being placed on the bottom plate, an upper support detection plate being further installed on the bottom plate, the upper support detection plate being located above the inner cabin, a detection interval being formed between the inner cabin and the upper support detection plate, a detection portion being provided within the detection interval for detecting a downward concave deformation of the upper support detection plate;

[0006] It also includes an air inlet pipe and an air outlet pipe communicated with the inner cabin, and one end of the air inlet pipe and the air outlet pipe away from the inner cabin is located above the ground.

[0007] Preferably, the upper supporting detection plate comprises a steel plate and a reinforced concrete precast plate, the reinforced concrete precast plate is installed above the steel plate, and the steel plate is installed on the bottom plate.

[0008] Preferably, the lateral surface area of ​​the upper supporting detection plate is larger than the surface area of ​​the upper surface of the inner cabin.

[0009] Preferably, a foundation pit is dug on the ground, a positioning groove is opened on the outer periphery of the foundation pit, the bottom plate and the inner cabin are installed in the foundation pit, and the upper support detection plate is installed in the positioning groove.

[0010] Preferably, soil is buried in the positioning groove and on the upper support detection plate.

[0011] Preferably, it also includes an outer shell installed on the bottom plate, the outer shell cover is arranged outside the inner cabin, the upper support detection plate is installed on the outer shell, the outer shell, the inner cabin, the bottom plate and the upper support detection plate form a reflux chamber, the side wall of the inner cabin is provided with an air vent connected to the reflux chamber, the exhaust pipe is connected to the reflux chamber, and the air inlet pipe is connected to the inner cabin.

[0012] Preferably, a maintenance through hole is formed on the upper support detection plate, and an extension portion is provided on the upper support detection plate, a through hole connected to the maintenance through hole is formed on the extension portion, and a sealing plate is installed on the extension portion, and the sealing plate is used to seal the through hole.

[0013] Preferably, a bottom seal is installed on the upper support detection plate, and the bottom seal is used to seal the maintenance through hole.

[0014] Preferably, a sealing extension is provided below the bottom seal, the sealing extension is sealed with the bottom of the upper support detection plate, and the bottom seal has a portion extending to the maintenance through hole and is detachably mounted on the upper support detection plate.

[0015] Preferably, a hanging protrusion is provided below the seal extension, and a flexible rope is provided between the hanging protrusion and the upper support detection plate. When the bottom seal seals the maintenance through hole, the flexible rope is not subjected to stress; when the bottom seal is separated from the maintenance through hole, the flexible rope is in a stressed state, and the bottom seal serves as a footboard for the staff.

[0016] In the present invention, the underground energy storage cabin for source-grid-load storage is proposed in a pioneering way. Under the premise of ensuring the ventilation effect of the energy storage cabin, it can also realize the early warning of the energy storage cabin receiving downward pressure deformation; further, the energy storage cabin is also convenient for staff to carry out maintenance.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of the present invention after being buried underground;

[0020] Figure 3 This is a schematic diagram of the structure after the bottom seal and the steel plate are separated from each other in the present invention;

[0021] Figure 4 It is a partial enlarged view of the A area of ​​the present invention;

[0022] Figure 5 This is a schematic diagram of the bottom seal disassembly and assembly tooling structure of the present invention;

[0023] In the figure: 1. bottom plate; 2. inner cabin; 3. upper support detection plate; 30. steel plate; 31. reinforced concrete precast plate; 32. maintenance through hole; 33. extension; 330. through hole; 34. fixing hole; 4. air intake pipe; 5. exhaust pipe; 6. pressure sensor; 7. elastic plate; 8. foundation pit; 9. positioning groove; 10. sealing plate; 11. bottom seal; 110. sealing extension; 111. hanging protrusion; 112. hanging extension; 12. support frame; 13. reinforcement rod; 14. vertical rod; 15. outer shell; 16. reflux chamber; 17. flexible rope; 18. fixing rod; 19. support plate; 20. inner lifting plate. DETAILED DESCRIPTION

[0024] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar symbols throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0025] like Figure 1-Figure 4 The buried energy storage cabin for source-grid-load storage shown in the figure comprises an inner cabin 2 for placing batteries, and a bottom plate 1, the inner cabin 2 is placed on the bottom plate 1, preferably, a limiting groove is opened on the bottom plate 1, and the lower part of the inner cabin 2 matches the limiting groove;

[0026] It also includes an upper support detection plate 3 installed on the bottom plate 1, the upper support detection plate 3 is located above the inner cabin 2 and there is a detection distance between the upper support detection plate 3 and the top of the inner cabin 2, and the inner cabin 2 is provided with a detection portion for detecting the downward concave deformation of the upper support detection plate 3; specifically, the upper support detection plate 3 can be fixed on the bottom plate 1 by a support plate or a column;

[0027] It also includes an air intake pipe 4 and an exhaust pipe 5, which are in communication with the inner cabin 2, and one end of the air intake pipe 4 and the exhaust pipe 5 away from the inner cabin 2 extends out of the ground;

[0028] It should be noted that, like the prior art, it also includes an exhaust fan connected to the exhaust pipe 5, and a filter is provided on the air intake pipe 4 for filtering the gas entering the inner cabin 2;

[0029] Optionally, the detection part is a pressure sensor 6 installed on the top of the inner cabin 2, and there is an elastic plate 7 above the pressure sensor 6. There is a certain distance between the elastic plate 7 and the upper support detection plate 3. If the upper support detection plate 3 is concave downward to a certain degree and touches the elastic plate 7, the elastic plate 7 will undergo elastic deformation and cause the pressure sensor 6 to detect the pressure, thereby facilitating the detection of the deformation of the upper support detection plate 3. The elastic plate 7 can be a rubber plate or a plate with a built-in spring in the prior art.

[0030] During the working process, a foundation pit 8 is first dug on the ground, and cement treatment and waterproofing treatment can be performed on the bottom and sides of the foundation pit 8. Then the base plate 1 is fixed to the bottom of the foundation pit 8, the inner cabin 2 is clamped on the base plate 1, and the upper support detection plate 3 is installed on the base plate 1 and the upper support detection plate 3. The intake pipe 4 and the exhaust pipe 5 connected to the inner cabin 2 are installed. Preferably, a positioning groove 9 is opened on the ground and on the outer periphery of the foundation pit 8, and the positioning groove 9 is treated with cement. The upper support detection plate 3 contacts the bottom surface of the positioning groove 9, and then waterproofing treatment is performed on the positioning groove 9 and the upper support detection plate 3. Then, the upper support detection plate 3 is covered with soil in the inner core of the positioning groove 9. During actual use, people or relatively light objects can be located above the upper support detection plate 3, and flowers and plants can also be planted above the upper support detection plate 3. It should be noted that, like the existing energy storage cabin, the inner cabin 2 is equipped with temperature sensors, humidity sensors and other sensors for detecting the internal environment of the energy storage cabin. The host computer connected to the sensors is located outside the foundation pit 8, and the host computer connected to the sensors can be located outside the foundation pit 8 through line connection.

[0031] During actual use, the detection unit detects whether the upper support detection plate 3 undergoes a large downward concave deformation. If a large downward concave deformation occurs, the relevant staff is reminded to replace the upper support detection plate 3.

[0032] Furthermore, by setting the detection part, the distance between the upper support detection plate 3 and the inner cabin 2 can be relatively close, thereby facilitating construction and maintenance of the inner cabin 2, and facilitating cooling of the inner cabin 2.

[0033] The upper support detection plate 3 can be a steel plate 30 in the prior art. In order to achieve a better support effect and detect the downward deformation of the upper support detection plate 3 at the same time, in some embodiments, preferably, the upper support detection plate 3 includes a steel plate 30 and a reinforced concrete precast plate 31 laid on the steel plate 30, a protrusion is provided under the reinforced concrete precast plate 31, and a slot is opened on the steel plate 30, and the protrusion matches the slot, thereby realizing the connection and positioning of the reinforced concrete precast plate 31 and the steel plate 30. Preferably, the area of ​​the upper support detection plate 3 is larger than the upper surface area of ​​the inner cabin 2.

[0034] Preferably, a maintenance through hole 32 is opened on the upper support detection plate 3, an extension portion 33 is provided on the upper surface of the upper support detection plate 3, a through hole 330 is opened on the extension portion 33, the through hole 330 is connected to the maintenance through hole 32 and is coaxial, and a sealing plate 10 is provided on the upper surface of the extension portion 33. On the basis of the above embodiment, an extension portion 33 is provided on the reinforced concrete precast panel 31, and a through hole 330 connected to the foundation pit 8 is opened on the extension portion 33 and the steel plate 30. A sealing plate 10 is provided on the top of the extension portion 33. In order to further increase the sealing performance, preferably, a bottom seal 11 is also included. Preferably, the bottom seal 11 is installed on the steel plate 30 and is used to seal the maintenance through hole 32 on the steel plate 30. Preferably, a sealing extension 110 is provided at the bottom of the bottom seal 11, and the sealing extension 110 is in conflict with the bottom of the steel plate 30. In order to further increase the sealing performance, an annular sealing ring is provided between the sealing extension 110 and the steel plate 30. Preferably, the maintenance through hole 32 on the steel plate 30 is a threaded hole, and the bottom seal 11 has a connection with the steel plate 30 threadedly connected.

[0035] In order to further increase the overall strength, a support frame 12 is fixed in the positioning groove 9, and a reinforcing rod 13 is provided between the support frame 12 and the extension portion 33 to further increase the strength of the support detection plate. In order to further increase the strength of the upper support detection plate 3, a vertical rod 14 is provided at the bottom of the reinforcing rod 13, and the vertical rod 14 is fixed between the reinforcing rod 13 and the upper support detection plate 3.

[0036] In some embodiments, preferably, it also includes an outer shell 15 placed on the bottom plate 1, the height of the outer shell 15 is greater than that of the inner cabin 2, the outer shell 15 is covered outside the inner cabin 2, the upper support detection plate 3 is arranged on the outer shell 15, and a reflux chamber 16 is formed between the outer shell 15, the upper support detection plate 3, the inner cabin 2 and the bottom plate 1, the outer surface of the inner cabin 2 is provided with air holes, the air holes are connected to the reflux chamber 16, the exhaust pipe 5 is connected to the reflux chamber 16, and the air intake pipe 4 is connected to the inner cabin 2.

[0037] Preferably, a plurality of reinforcing columns are provided on the bottom plate 1 , and the reinforcing columns support the upper support detection plate 3 .

[0038] Preferably, the maintenance through hole 32 is connected to the reflux chamber 16, and a maintenance door is provided on the side of the inner cabin 2. In order to facilitate maintenance personnel to enter the reflux chamber 16, a flexible rope 17 is provided between the bottom seal 11 and the steel plate 30. The flexible rope 17 is provided with multiple groups, and the lengths of the multiple groups of flexible ropes 17 are equal. The multiple groups of flexible ropes 17 are distributed along the circumference of the bottom seal 11;

[0039] When the bottom seal 11 seals the maintenance through hole 32, the flexible rope 17 is not subjected to vertical force; when the bottom seal 11 is separated from the maintenance through hole 32, the flexible rope 17 is in a stressed state, and the bottom seal 11 serves as a footrest for the staff;

[0040] When the rotating bottom seal 11 is disengaged from the threaded hole of the steel plate 30, the flexible rope 17 makes the lower bottom seal 11 hang on the steel plate 30. Since the length of the flexible rope 17 is the same, the upper surface of the bottom seal 11 is flat. When the staff enters the reflux chamber 16, they can first step on the bottom seal 11 and then move into the reflux chamber 16.

[0041] In order to avoid the flexible rope 17 from being squeezed, preferably, the sealing extension 110 has a hanging protrusion 111 below, and the hanging extension 112 extending outward is provided below the hanging protrusion 111, and the flexible rope 17 is connected to the hanging extension 112. In order to avoid disturbance of the flexible rope 17, the hanging extension 112 is rotatably installed on the hanging protrusion 111 of the bottom seal 11, and the axis of rotation of the hanging protrusion 111 relative to the bottom seal 11 coincides with the axis of the bottom seal 11.

[0042] like Figure 5 In order to facilitate the installation and removal of the bottom seal 11, the present invention has also developed a tool, the upper end surface of the bottom seal 11 is provided with at least two fixing holes 34, and the axes of at least two fixing holes 34 are parallel to the axis of the bottom seal 11. In order to facilitate the removal and installation of the bottom seal 11, a set of disassembly tool is provided, the tool comprises at least two fixing rods 18, one fixing rod 18 is connected to one fixing hole 34, specifically, the fixing rod 18 and the fixing hole 34 can be connected by threads, and the tool also comprises a support plate 1 9. The support plate 19 is installed on the top of the extension portion 33, and can be installed on the top of the extension portion 33 by a snap-fitting manner. The inner lifting plate 20 is installed in the support plate 19 by a threaded manner. The end of the fixing rod 18 away from the bottom seal 11 is connected to the inner lifting plate 20 by a threaded manner. When the fixing rod 18 is threadedly connected to the bottom seal 11, the fixing rod 18 is threadedly connected to the inner lifting plate 20, and then rotates to the inner lifting plate 20 to drive the bottom seal 11 to rise and fall, and makes the bottom seal 11 threadedly connected or loosened with the maintenance through hole 32.

[0043] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0044] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0045] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0047] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An underground energy storage cabin for source-grid-load storage, comprising an inner cabin (2) for placing batteries, characterized in that: The inner cabin (2) is buried underground and further comprises a bottom plate (1), the inner cabin (2) is placed on the bottom plate (1), an upper support detection plate (3) is also mounted on the bottom plate (1), the upper support detection plate (3) is located above the inner cabin (2), a detection gap is formed between the inner cabin (2) and the upper support detection plate (3), and a detection portion for detecting a downward concave deformation of the upper support detection plate (3) is provided within the detection gap; It also comprises an air inlet pipe (4) and an air outlet pipe (5) which are in communication with the inner cabin (2); the ends of the air inlet pipe (4) and the air outlet pipe which are away from the inner cabin (2) are located above the ground.

2. The underground energy storage cabin for source-grid-load storage according to claim 1 is characterized in that: The upper support detection plate (3) comprises a steel plate (30) and a reinforced concrete precast plate (31), wherein the reinforced concrete precast plate (31) is installed above the steel plate (30), and the steel plate (30) is installed on the bottom plate (1).

3. The underground energy storage cabin for source-grid-load storage according to claim 1 is characterized in that: The lateral surface area of ​​the upper support detection plate (3) is greater than the surface area of ​​the upper surface of the inner cabin (2).

4. The underground energy storage cabin for source-grid-load storage according to claim 3 is characterized in that: A foundation pit (8) is dug on the ground, a positioning groove (9) is opened on the outer periphery of the foundation pit (8), the bottom plate (1) and the inner cabin (2) are installed in the foundation pit (8), and the upper support detection plate (3) is installed in the positioning groove (9).

5. The underground energy storage cabin for source-grid-load storage according to claim 4 is characterized in that: The positioning groove (9) and the upper support detection plate (3) are covered with soil.

6. The underground energy storage cabin for source-grid-load storage according to claim 1 is characterized in that: It also includes an outer shell installed on the bottom plate (1), the outer shell cover is arranged outside the inner cabin (2), the upper support detection plate (3) is installed on the outer shell, the outer shell, the inner cabin (2), the bottom plate (1) and the upper support detection plate (3) form a reflux chamber (16), the side wall of the inner cabin (2) is provided with an air vent connected to the reflux chamber (16), the exhaust pipe (5) is connected to the reflux chamber (16), and the intake pipe (4) is connected to the inner cabin (2).

7. The underground energy storage cabin for source-grid-load storage according to any one of claims 1 to 6, characterized in that: The upper support detection plate (3) is provided with a maintenance through hole (32), the upper support detection plate (3) is provided with an extension portion (33), the extension portion (33) is provided with a through hole (330) connected to the maintenance through hole (32), a sealing plate (10) is installed on the extension portion (33), and the sealing plate (10) is used to seal the through hole (330).

8. The underground energy storage cabin for source-grid-load storage according to claim 7 is characterized in that: A bottom seal (11) is installed on the upper support detection plate (3), and the bottom seal (11) is used to seal the maintenance through hole (32).

9. The underground energy storage cabin for source-grid-load storage according to claim 8 is characterized in that: A sealing extension (110) is provided below the bottom seal (11), and the sealing extension (110) is connected to the bottom seal (11) of the upper support detection plate (3). The bottom seal (11) has a portion extending to the maintenance through hole (32) and can be detachably mounted on the upper support detection plate (3).

10. The underground energy storage cabin for source-grid-load storage according to claim 8 is characterized in that: A hanging protrusion (111) is provided below the sealing extension (110), and a flexible rope (17) is provided between the hanging protrusion (111) and the upper support detection plate (3). When the bottom seal (11) seals the maintenance through hole (32), the flexible rope (17) is not subjected to stress; when the bottom seal (11) is separated from the maintenance through hole (32), the flexible rope (17) is in a stressed state, and the bottom seal (11) serves as a footrest for the staff.

Images