A sealing structure for compressed air energy storage and method of construction

Abstract

The application relates to the technical field of new energy storage technology, and discloses a sealing structure for a compressed air energy storage device and a construction method, which comprises a lining body, a sealing assembly, a monitoring assembly and the like.

Description

Technical Field

[0001] This invention relates to the field of new energy storage technology, and in particular to a sealing structure and construction method for compressed air energy storage equipment. Background Technology

[0002] The proportion of renewable energy sources such as wind and solar power is constantly increasing, but their intermittency and instability create a significant contradiction between power generation and actual electricity demand. This supply-demand imbalance not only affects the stability of the power system but also forces a large amount of clean energy to be "curtailed" during periods of low demand, preventing its full utilization. Therefore, to improve the absorption capacity of renewable energy, compressed gas storage technology has emerged and become a key component in the development of a modern energy system.

[0003] Compressed air energy storage facilities effectively store and reuse electrical energy by converting excess electrical energy into compressed air and storing it underground or in sealed containers. This technology can not only alleviate grid load and balance power demand, but also provide rapid response in a short time, enhancing the flexibility and stability of the power system. In this process, the design and operational efficiency of the gas storage chamber are crucial, directly affecting the overall performance and economy of the system. Traditional gas storage chambers often use steel-lined sealing layers, which are resource-intensive, difficult to construct, and when airtightness failure occurs, it is impossible to detect the location of the failure or quickly replace the faulty components.

[0004] Therefore, there is an urgent need for a sealing structure and construction method for compressed air energy storage equipment to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a sealing structure and construction method for compressed air energy storage devices to solve the problems existing in the prior art.

[0006] To achieve the above objectives, the present invention provides the following solution: The present invention provides a sealing structure for a compressed air energy storage device, comprising:

[0007] Lining body;

[0008] A sealing assembly includes a support frame and several sealing plates. The support frame is detachably connected to the lining body, and the several sealing plates are laid on the inner wall of the lining body through the support frame for sealing the interior of the lining body.

[0009] The monitoring component includes several monitoring elements, which are respectively installed on the inner wall of the lining body for monitoring the sealing status of the sealing plate;

[0010] The sealing plate is made of rubber.

[0011] According to the present invention, a sealing structure for a compressed air energy storage device is provided, wherein the support frame comprises:

[0012] Several node supports are detachably connected to the inner wall of the lining body, and the several node supports are distributed in an array.

[0013] Several connecting supports are detachably connected to the inner wall of the lining body and are located between two adjacent node supports;

[0014] Several sealing elements are disposed on the node support and the connecting support, and the sealing plate is limitedly connected to the node support and the connecting support through the sealing elements.

[0015] According to the present invention, a sealing structure for a compressed air energy storage device is provided, wherein the sealing element comprises:

[0016] The first sealing block is adapted to the node support and is detachably connected to the node support and is in contact with the sealing plate.

[0017] The second sealing block is adapted to the connecting support and is detachably connected to the connecting support and is in contact with the sealing plate.

[0018] According to the sealing structure for a compressed air energy storage device provided by the present invention, a first protrusion is provided on each of the four corners of the node support, and the node support forms a cross-shaped groove through the four first protrusions, and the first sealing block is adapted to the cross-shaped groove.

[0019] According to the sealing structure for a compressed air energy storage device provided by the present invention, a second protrusion is provided at both ends of the connecting support, and the connecting support forms a straight groove through the two second protrusions. The second sealing block is adapted to the straight groove, and the straight groove communicates with the cross-shaped groove.

[0020] According to the present invention, a sealing structure for a compressed air energy storage device is provided, wherein two adjacent first protrusions on the node support and two second protrusions on the connecting support form an M-shaped structure.

[0021] According to a sealing structure for a compressed air energy storage device provided by the present invention, a sealing ring is fixedly connected to the inner edge of the sealing plate, and the sealing ring is sleeved in the cross-shaped groove and the straight groove and contacts the first sealing block and the second sealing block.

[0022] According to the present invention, a sealing structure for a compressed air energy storage device is provided, wherein the monitoring element includes a reserved hole opened on the inner wall of the lining body, a pressure sensor is installed in the reserved hole, and a breathable steel is fixedly connected to the reserved hole.

[0023] According to the present invention, a sealing structure for a compressed air energy storage device is provided, wherein a wire mesh interlayer is provided inside the sealing plate.

[0024] A construction method for a sealing structure of a compressed air energy storage device includes the following steps:

[0025] The monitoring device is installed on the inner wall of the lining body;

[0026] The support frame is installed on the inner wall of the lining body;

[0027] Several sealing plates are installed on the inner wall of the lining body and connected to the support frame.

[0028] Compared with the prior art, the present invention has the following advantages and technical effects:

[0029] This invention provides a sealing structure and construction method for compressed air energy storage equipment. Several monitoring components are installed on the lining body, and a support frame is installed. Then, sealing plates are installed and connected to the support frame to achieve sealing. The positions of the sealing plates are monitored by the monitoring components. When an airtightness failure is detected, the corresponding sealing plate can be easily replaced by accurately locating the failure position. This invention utilizes rubber materials to create the sealing layer, which is significantly cheaper than traditional steel-lined sealing layers, accounting for approximately 8% of the cost of the gas storage facility. It can adapt to various gas storage chamber installation environments and features lightweight construction and the ability to be installed simultaneously, allowing for quick installation and extending the single-run duration and overall lifespan of the gas storage chamber. Real-time monitoring and targeted location of leaks in each rubber sealing layer enable timely feedback on airtightness failures, effectively solving the problem of unmanageable airtightness failures in traditional gas storage chambers. The invention also implements a glue-free, modular pressing process, allowing for rapid disassembly, inspection, and installation of the sealing plate at the affected area when the airtightness sensor detects a localized airtightness failure—essentially modular replacement. This glue-free, modular construction method for the rubber sealing layer will significantly reduce construction resources and greatly facilitate the subsequent monitoring, repair, and replacement of the gas storage chamber. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly described below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0032] Figure 2 This is a schematic diagram of the lining body structure of the present invention;

[0033] Figure 3 This is a schematic diagram of the monitoring component structure of the present invention;

[0034] Figure 4 This is a schematic diagram of the connecting support structure of the present invention;

[0035] Figure 5 This is a schematic diagram of the structure of the first sealing block of the present invention;

[0036] Figure 6 This is a schematic diagram of the support frame structure of the present invention;

[0037] Figure 7 This is a schematic diagram of the support frame of the present invention in its installation state;

[0038] Figure 8 This is a schematic diagram of the sealing plate structure of the present invention;

[0039] Figure 9 This is a schematic diagram showing the connection state between the sealing plate and the node support of the present invention;

[0040] Figure 10 This is a schematic diagram showing the connection state between the sealing plate, the node support, and the connecting support of the present invention;

[0041] Figure 11 This is a schematic diagram of the structure of the first sealing block of the present invention;

[0042] Figure 12 This is a schematic diagram of the structure of the second sealing block of the present invention;

[0043] Figure 13 This is a schematic diagram of the sealing structure of the present invention;

[0044] The components are as follows: 1. Lining body; 2. Sealing plate; 3. Node support; 4. Connecting support; 5. First sealing block; 6. Second sealing block; 7. First protrusion; 8. Second protrusion; 9. Reserved hole; 10. Air pressure sensor; 11. Breathable steel; 12. Wire mesh interlayer; 13. Threaded hole; 14. Mounting hole; 15. Bolt; 16. Washer. Detailed Implementation

[0045] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0046] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0047] Reference Figures 1-13 The present invention provides a sealing structure for a compressed air energy storage device, comprising:

[0048] Lining body 1;

[0049] The sealing assembly includes a support frame and several sealing plates 2. The support frame is detachably connected to the lining body 1. The several sealing plates 2 are laid on the inner wall of the lining body 1 through the support frame for sealing the interior of the lining body 1.

[0050] The monitoring component includes several monitoring elements, which are respectively installed on the inner wall of the lining body 1 to monitor the sealing status of the sealing plate 2;

[0051] The sealing plate 2 is made of rubber.

[0052] Specifically, several monitoring components are installed on the lining body 1, and a support frame is installed. Then, sealing plates 2 are installed and connected to the support frame to achieve sealing and ensure sealing effect. The positions of several sealing plates 2 are monitored by several monitoring components. When airtightness failure is detected, the corresponding sealing plate 2 can be easily replaced by accurately locating the failure position.

[0053] As an optional implementation, the support frame includes:

[0054] Several node supports 3 are detachably connected to the inner wall of the lining body 1, and the several node supports 3 are distributed in an array.

[0055] Several connecting supports 4 are detachably connected to the inner wall of the lining body 1 and are located between two adjacent node supports 3;

[0056] Several sealing elements are installed on the node support 3 and the connecting support 4. The sealing plate 2 is limited and connected to the node support 3 and the connecting support 4 through the sealing elements.

[0057] In one embodiment of the present invention, refer to Figure 1 , Figure 6 , Figure 13 The lining body 1 has several threaded holes 13, and the node support 3 and the connecting support 4 are assembled and installed on the lining body 1 by means of the threaded holes 13 and bolts 15.

[0058] Specifically, gaskets 16 are also provided between the node support 3 and the connecting support 4 and the lining body 1 to ensure the sealing of the connection.

[0059] As an optional implementation, the seal includes:

[0060] The first sealing block 5 is adapted to the node support 3. The first sealing block 5 is detachably connected to the node support 3 and is in contact with the sealing plate 2.

[0061] The second sealing block 6 is adapted to the connecting support 4. The second sealing block 6 is detachably connected to the connecting support 4 and is in contact with the sealing plate 2.

[0062] In one embodiment of the present invention, refer to Figure 1 , Figure 4 , Figure 5 , Figure 9 , Figure 13 The sealing plate 2 is installed on the node support 3 and the connecting support 4, and a stable connection of the sealing plate 2 is achieved by installing the first sealing block 5 and the second sealing block 6 on the node support 3 and the connecting support 4, respectively.

[0063] Specifically, each of the node support 3, connecting support 4, first sealing block 5, and second sealing block 6 is provided with mounting holes 14 for connecting the node support 3, connecting support 4, first sealing block 5, and second sealing block 6.

[0064] As an optional implementation, each of the four corners of the node support 3 is provided with a first protrusion 7, and the node support 3 forms a cross-shaped groove through the four first protrusions 7, and the first sealing block 5 is adapted to the cross-shaped groove.

[0065] In one embodiment of the present invention, refer to Figure 4 , Figure 11 The first sealing block 5 is adapted to the cross-shaped groove, and the bottom is a wedge-shaped structure, which is used to press the end of the sealing plate 2 that extends into the cross-shaped groove into the cross-shaped groove, thereby ensuring the sealing effect.

[0066] As an optional implementation, the connecting support 4 is provided with a second protrusion 8 at both ends. The connecting support 4 forms a straight groove through the two second protrusions 8. The second sealing block 6 is adapted to the straight groove, and the straight groove is connected to the cross groove.

[0067] In one embodiment of the present invention, refer to Figure 5 , Figure 12 The second sealing block 6 is adapted to the straight groove and has a wedge-shaped structure at the bottom. It is used to press one end of the sealing plate 2 into the straight groove to ensure the sealing effect. The sealing plate 2 is tightly attached to the inner groove of each support by the wedge block and bolts to form a complete and reliable new glue-free modular structure.

[0068] As an optional implementation, the two adjacent first protrusions 7 on the node support 3 and the two second protrusions 8 on the connecting support 4 form an M-shaped structure.

[0069] In one embodiment of the present invention, refer to Figure 4 , Figure 5 The four sides of the node support 3 are all M-shaped structures, and the cross section of the connecting support 4 is also M-shaped. The two are symmetrical on the contact surface.

[0070] As an optional implementation, a sealing ring is fixedly connected to the inner edge of the sealing plate 2. The sealing ring is fitted into the cross-shaped groove and the straight groove and contacts the first sealing block 5 and the second sealing block 6.

[0071] In one embodiment of the present invention, refer to Figure 8 , Figure 9 , Figure 10 By setting a sealing ring structure on the sealing plate 2, the entire side of the sealing plate 2 can be covered, extending into the cross-shaped groove and the straight groove, and is installed by the compression of the first sealing block 5 and the second sealing block 6, thereby ensuring the overall sealing effect. When a sealing plate 2 needs to be replaced, it can be quickly disassembled and reassembled.

[0072] Specifically, the sealing ring structure is an edge-wrapping installation form. Therefore, when installing the sealing plate 2, tools such as pry bars are needed to sequentially snap the four corners of the sealing plate 2 into the special node support 3. While processing the edge wrapping, the four sides are snapped into the connecting support 4. Each node support 3 is used to install the corners of the four adjacent sealing plates 2, and each connecting support 6 is used to install the sides of the two adjacent sealing plates 2.

[0073] As an optional implementation, the monitoring component includes a reserved hole 9 opened on the inner wall of the lining body 1, a pressure sensor 10 installed in the reserved hole 9, and a breathable steel 11 fixedly connected to the reserved hole 9.

[0074] In one embodiment of the present invention, refer to Figure 3 The air pressure sensor 10 is used to monitor the sealing condition of the sealing plate 2. Specifically, the air pressure sensor 10 is preferably a sensor specifically designed for the gas storage chamber.

[0075] Specifically, a number of pressure sensors 10 correspond one-to-one with a number of sealing plates 2 to accurately locate the location of airtightness failure, and to accurately locate the failure part for easy replacement later.

[0076] As an optional implementation, a wire mesh interlayer 12 is provided inside the sealing plate 2.

[0077] In one embodiment of the present invention, refer to Figure 8 The structural strength of the sealing plate 2 is further improved by the steel wire mesh interlayer 12.

[0078] A construction method for a sealing structure of a compressed air energy storage device includes the following steps:

[0079] Install the monitoring device on the inner wall of the lining body 1;

[0080] Install the support frame on the inner wall of the lining body 1;

[0081] Several sealing plates 2 are installed on the inner wall of the lining body 1 and connected to the support frame.

[0082] In use, firstly, pre-drilled holes 9 for installing the pressure sensor 10 and threaded holes 13 for installing bolts 15 need to be drilled on the pre-constructed lining body 1. After the drilling is completed, the pressure sensor 10 is installed in the pre-drilled hole 9 and sealed with permeable steel 11. Subsequently, it is wired to the outside of the gas storage chamber for feedback on air tightness. The node support 3 and the connecting support 4 are installed onto the threaded hole 13 using bolts 15. It should be noted that when fixing the node support 3 and the connecting support 4, it is necessary to... A thin gasket 16 is placed between it and the lining body 1 to ensure the sealing of adjacent components. On site, the sealing plate 2 is bent and installed. When installing the sealing layer, tools such as pry bars are used to snap the four corners of the sealing plate 2 into the node support 3 in sequence. While processing the edge, the four sides are snapped into the connecting support 4 to realize the installation of the sealing plate 2. After installation, the sealing effect is guaranteed. Subsequently, the corresponding sealing plate 2 is monitored by the air pressure sensor 10. If necessary, the individual sealing plate 2 can be easily disassembled and replaced.

[0083] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0084] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A sealing structure for a compressed air energy storage device, characterized in that, include: Lining body (1); The sealing assembly includes a support frame and several sealing plates (2). The support frame is detachably connected to the lining body (1). The several sealing plates (2) are laid on the inner wall of the lining body (1) through the support frame for sealing the interior of the lining body (1). The monitoring component includes several monitoring elements, which are respectively installed on the inner wall of the lining body (1) for monitoring the sealing status of the sealing plate (2); The sealing plate (2) is made of rubber; The support frame includes: Several node supports (3) are detachably connected to the inner wall of the lining body (1), and the several node supports (3) are distributed in an array. Several connecting supports (4) are detachably connected to the inner wall of the lining body (1) and located between two adjacent node supports (3); Several sealing elements are provided on the node support (3) and the connecting support (4), and the sealing plate (2) is limited and connected to the node support (3) and the connecting support (4) through the sealing elements.

2. The sealing structure for a compressed air energy storage device according to claim 1, characterized in that, The sealing element includes: The first sealing block (5) is adapted to the node support (3). The first sealing block (5) is detachably connected to the node support (3) and is in contact with the sealing plate (2). The second sealing block (6) is adapted to the connecting support (4). The second sealing block (6) is detachably connected to the connecting support (4) and is in contact with the sealing plate (2).

3. A sealing structure for a compressed air energy storage device according to claim 2, characterized in that: The node support (3) is provided with a first protrusion (7) at each of its four corners. The node support (3) forms a cross-shaped groove through the four first protrusions (7). The first sealing block (5) is adapted to the cross-shaped groove.

4. A sealing structure for a compressed air energy storage device according to claim 3, characterized in that: The connecting support (4) is provided with a second protrusion (8) at both ends. The connecting support (4) forms a straight groove through the two second protrusions (8). The second sealing block (6) is adapted to the straight groove. The straight groove is connected to the cross-shaped groove.

5. A sealing structure for a compressed air energy storage device according to claim 4, characterized in that: The two adjacent first protrusions (7) on the node support (3) and the two second protrusions (8) on the connecting support (4) form an M-shaped structure.

6. A sealing structure for a compressed air energy storage device according to claim 4, characterized in that: A sealing ring is fixedly connected to the inner edge of the sealing plate (2). The sealing ring is sleeved in the cross-shaped groove and the straight groove and contacts the first sealing block (5) and the second sealing block (6).

7. A sealing structure for a compressed air energy storage device according to claim 2, characterized in that: The monitoring component includes a reserved hole (9) opened on the inner wall of the lining body (1), a pressure sensor (10) is installed in the reserved hole (9), and a breathable steel (11) is fixedly connected to the reserved hole (9).

8. A sealing structure for a compressed air energy storage device according to claim 1, characterized in that: The sealing plate (2) is provided with a wire mesh interlayer (12).

9. A construction method for a sealing structure of a compressed air energy storage device, as described in claim 1, characterized in that, Includes the following steps: The monitoring device is installed on the inner wall of the lining body (1); The support frame is installed on the inner wall of the lining body (1); Several sealing plates (2) are installed on the inner wall of the lining body (1) and connected to the support frame.

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