Composite sealed energy storage chamber

Abstract

The utility model provides a composite sealed energy storage chamber which comprises a concrete lining layer arranged in a rock surrounding layer, a cavity is formed in the concrete lining layer, a sealing layer is arranged on the inner wall of the cavity, and a sliding layer is arranged between the outer wall of the sealing layer and the inner wall of the cavity. The sealing layer comprises a plurality of sealing pieces attached to the inner wall of the concrete lining layer, the sealing pieces are made of composite materials, gaps are formed between the edges of every two adjacent sealing pieces, gaps are formed, the gaps are filled with sealing materials, fixing lines are formed, and the sealing layers are made of composite materials. A sealed gas storage space used for storing gas is formed between the sealing piece and the fixing line. The composite sealing type energy storage chamber is high in structural strength, has certain elastic deformation capacity, and is good in sealing performance, high in safety, low in manufacturing cost, long in service life and wide in application range.

Description

Technical Field

[0001] This utility model relates to a chamber, and more particularly to a composite sealed energy storage chamber. Background Technology

[0002] Compressed air energy storage is a technology that stores and releases electrical energy through the compression and expansion of air, and it represents an important development direction in the energy storage field. As a crucial component of compressed air energy storage power plants, the key to energy storage chambers lies in their stability and airtightness under high-pressure environments.

[0003] Under current technological conditions, artificial chamber energy storage is one of the mainstream energy storage methods for compressed air. Existing artificial chambers typically use steel plates as the sealing material for their internal sealing layers, which suffers from high costs, difficult welding operations, poor structural stability, susceptibility to corrosion, and poor sealing performance. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a composite sealed energy storage chamber that is simple to construct, low in cost, has high structural stability, good sealing performance and long service life.

[0005] This utility model provides a composite sealed energy storage chamber, including a concrete lining layer 21 disposed within a surrounding rock layer 1. A cavity is formed within the concrete lining layer 21, and a sealing layer is provided on the inner wall of the cavity. A sliding layer 22 is provided between the outer wall of the sealing layer and the inner wall of the cavity. The sealing layer includes a plurality of sealing sheets 23 attached to the inner wall of the concrete lining layer 21. The sealing sheets 23 are made of composite material, and there is a gap between the edges of two adjacent sealing sheets 23 to form a slit 230. The slit 230 is filled with sealing material to form a fixing line 24. A sealed gas storage space 20 for storing gas is formed between the sealing sheets 23 and the fixing line 24.

[0006] Furthermore, a sealing strip 25 is attached to the gap 230, and the sealing strip 25 is made of composite material.

[0007] Furthermore, the sealing sheet 23 is a sheet-shaped prefabricated plate.

[0008] Furthermore, the sealing sheet 23 and / or the sealing strip 25 are made of multilayer fiber composite material.

[0009] Furthermore, the sealing sheet 23 and the sealing strip 25 are made of fibers and resin.

[0010] Furthermore, the fixing line 24 is made of fiber and resin.

[0011] Furthermore, the fiber is glass fiber and / or basalt fiber, and the resin is epoxy resin.

[0012] Furthermore, the sliding layer is asphalt or polyurea.

[0013] Furthermore, the gap 230 includes an alternating first gap and a second gap.

[0014] Furthermore, the width of the gap 230 is 1cm-3cm.

[0015] This utility model of a composite sealed energy storage chamber uses composite materials as the sealing layer, which greatly reduces construction difficulty and manufacturing costs, avoids corrosion problems, and has a long service life. The combination of fiber and resin ensures good structural stability and high sealing performance, guaranteeing long-term stable operation under high pressure. The precast panel structure significantly reduces construction difficulty, lowers material and construction costs, and increases construction efficiency. Fixed lines are used to fix adjacent precast panels to the concrete lining layer, forming a grid-like multi-layer composite material sealing structure that combines overall fixation with local sliding. Epoxy resin is used to adhere multi-layer composite material strips to the fixed lines and the surface of the precast panels, strengthening the connection between adjacent precast panels. When the artificial chamber deforms under high pressure, the sealing layer can adapt to elastic deformation, thus ensuring the stability and sealing performance of the sealing layer. This utility model of a composite sealed energy storage chamber has high structural strength, a certain elastic deformation capacity, good sealing performance, high safety, low manufacturing cost, long service life, and wide applicability. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the composite sealed energy storage chamber of this utility model;

[0017] Figure 2 for Figure 1 Enlarged view of section A in the middle;

[0018] Figure 3 This is a schematic diagram of the installation of the sealing sheet in the composite sealed energy storage chamber of this utility model;

[0019] Figure 4 This is a schematic diagram of the installation of the sealing strip in the composite sealed energy storage chamber of this utility model. Detailed Implementation

[0020] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0021] See Figures 1-4This utility model provides a composite sealed energy storage chamber, including a concrete lining layer 21, which is located in the surrounding rock layer 1 underground or in a mountain. A cavity is formed within the concrete lining layer 21. This cavity is a sealed cavity and serves as the main structure of the gas storage space. The cross-section of the sealed cavity is circular, and it can be spherical or cylindrical. The outer layer of the concrete lining layer 21 is tightly bonded to the surrounding rock layer 1 to ensure the stability of the overall structure.

[0022] A sealing layer is provided on the inner wall of the sealed cavity. This sealing layer covers the inner surface of the concrete lining layer 21, forming multiple layers of protection to ensure that the gas does not leak. The sealing layer is mainly composed of sealing sheets 23, which are made of composite materials. There are multiple sealing sheets 23, which are attached to the inner wall of the concrete lining layer 21 (cavity). There is a gap between the edges of two adjacent sealing sheets 23, which forms a gap 230. The width of the gap 230 is 1cm-3cm, and in this embodiment it is 2cm. The gap 230 is filled with sealing material, which forms a fixing line 24. The fixing line 24 and the sealing sheet 23 form an integral sealing structure, namely the sealing layer. A gas storage space 20 is formed in the sealing layer for storing gas. It can withstand high pressure and store high-pressure gas to achieve energy storage.

[0023] In this application, the sealing sheet 23 is a sheet-like prefabricated plate structure made of multi-layer fiber composite material, specifically, it is made of fiber and resin. The fiber serves as a reinforcing material, providing a high-strength skeleton structure for the sealing sheet and ensuring its excellent compressive strength. The resin serves as a base material, used to tightly wrap the fiber to form a plate-like structure, enhancing the overall flexibility and ensuring sealing performance. The aforementioned fiber can be glass fiber, basalt fiber, or other high-performance fibers, all of which can be used as reinforcing materials. The resin is epoxy resin.

[0024] The gap 230 is filled with sealing material to form a fixing line 24. The fixing line 24 is made of fiber and resin, specifically a mixture of short fiber and epoxy resin. The short fiber can be glass fiber, basalt fiber, or other high-performance fiber as a reinforcing material. After solidification, it forms an integral sealing structure with the sealing sheet 23. The construction is simple and the cost is low.

[0025] To further improve structural reliability and sealing performance, a sealing strip 25 is attached to the gap 230 in this application. The sealing strip 25 is strip-shaped and is also made of composite material. In this embodiment, the sealing strip 25 is made of multi-layer fiber composite material, that is, made of fiber and resin. Specifically, the fiber can be glass fiber, basalt fiber, or other high-performance fibers as reinforcing materials, and the resin is epoxy resin. The sealing strip 25 is arranged along the length of the gap, covering the surface of the gap, and the two sides of the sealing strip are bonded and fixed to the sealing pieces 23 on both sides of the gap, which improves the overall structural stability and sealing performance.

[0026] A sliding layer 22 is provided between the outer wall of the sealing layer and the inner wall of the chamber. This sliding layer is made of asphalt or polyurea, which enables the sealing layer to adapt to the local deformation of the concrete lining layer under high pressure, thereby ensuring the stability and sealing performance of the sealing structure.

[0027] For ease of construction, the sealing sheet 23 can be a rectangular precast panel structure, which is attached to the inner wall of the cavity in a matrix form. Therefore, the gap 230 includes staggered first gaps and second gaps, and sealing strips are fixed on both the first gap and the second gap.

[0028] In this application, the sealing sheet 23 adopts a sheet-like prefabricated plate structure, which is a multi-layer fiber composite material. This not only solves the problem of easy corrosion of traditional metal materials but also significantly improves structural strength, optimizing the performance of the sealing layer. The fibers, as reinforcing materials, provide a high-strength skeleton structure for the sealing layer, ensuring excellent compressive strength. Epoxy resin, as the matrix material, acts as an adhesive, tightly wrapping the fibers, enhancing flexibility, and ensuring the integrity of the sealing layer. This combination exhibits high structural stability and long-lasting fatigue resistance under high-pressure environments, effectively guaranteeing the long-term stable operation of the energy storage system. In terms of raw material selection, various high-performance fibers such as glass fiber and basalt fiber can be used as reinforcing materials.

[0029] The multi-layer composite sealing layer is in the form of precast sheet panels. During construction, asphalt or polyurea is used as a sliding layer, applied to the surface of the precast panels. The precast panels are then attached to the corresponding lining, leaving certain gaps between them. Simultaneously, a mixture of short fibers and epoxy resin is filled into the gaps between the precast panels to form fixing lines, thus securing adjacent precast panels to the lining layer. This creates a grid-like multi-layer composite sealing structure that combines overall fixation with localized sliding. (See reference...) Figure 3 Simultaneously, epoxy resin is used to bond multi-layer composite material strips to the fixed lines and the surface of the precast panels, strengthening the connection between adjacent precast panels. (See [reference needed]). Figure 4 When the artificial chamber deforms under high pressure, the sealing layer can adapt to the elastic deformation, thereby ensuring the stability and sealing performance of the sealing layer.

[0030] This utility model of a composite sealed energy storage chamber uses composite materials as the sealing layer, which greatly reduces construction difficulty and manufacturing costs, avoids corrosion problems, and has a long service life. The combination of fiber and resin ensures good structural stability and high sealing performance, guaranteeing long-term stable operation under high pressure. The precast panel structure significantly reduces construction difficulty, lowers material and construction costs, and increases construction efficiency. Fixed lines are used to fix adjacent precast panels to the concrete lining layer, forming a grid-like multi-layer composite material sealing structure that combines overall fixation with local sliding. Epoxy resin is used to adhere multi-layer composite material strips to the fixed lines and the surface of the precast panels, strengthening the connection between adjacent precast panels. When the artificial chamber deforms under high pressure, the sealing layer can adapt to elastic deformation, thus ensuring the stability and sealing performance of the sealing layer. This utility model of a composite sealed energy storage chamber has high structural strength, a certain elastic deformation capacity, good sealing performance, high safety, low manufacturing cost, long service life, and wide applicability.

[0031] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A composite sealed energy storage chamber, characterized in that: The system includes a concrete lining layer disposed within a surrounding rock layer, wherein a cavity is formed within the concrete lining layer, and a sealing layer is provided on the inner wall of the cavity. A sliding layer is provided between the outer wall of the sealing layer and the inner wall of the cavity. The sealing layer includes a plurality of sealing sheets attached to the inner wall of the concrete lining layer. The sealing sheets are made of composite material, and there is a gap between the edges of two adjacent sealing sheets to form a slit. The slit is filled with sealing material to form a fixed line, and a sealed gas storage space for storing gas is formed between the sealing sheets and the fixed line.

2. The composite sealed energy storage chamber as described in claim 1, characterized in that: A sealing strip, made of composite material, is attached to the gap.

3. The composite sealed energy storage chamber as described in claim 1, characterized in that: The sealing sheet is a sheet-shaped prefabricated plate.

4. The composite sealed energy storage chamber as described in claim 2, characterized in that: The sealing sheet and / or the sealing strip are made of fiber composite material.

5. The composite sealed energy storage chamber as described in claim 2, characterized in that: The sealing sheet and the sealing strip are made of fiber resin composite material.

6. The composite sealed energy storage chamber as described in claim 1, characterized in that: The fixing line is made of fiber resin composite material.

7. The composite sealed energy storage chamber as described in claim 5 or 6, characterized in that: The fibers in the fiber-resin composite material are glass fibers or basalt fibers, and the resin in the fiber-resin composite material is epoxy resin.

8. The composite sealed energy storage chamber as described in claim 1, characterized in that: The sliding layer is asphalt or polyurea.

9. The composite sealed energy storage chamber as described in claim 1, characterized in that: The gaps include staggered first gaps and second gaps.

10. The composite sealed energy storage chamber as described in claim 1, characterized in that: The width of the gap is 1cm-3cm.

Images