Sealing structure for compressed air energy storage equipment and construction method

Abstract

The invention relates to the technical field of new energy storage, and discloses a sealing structure for compressed air energy storage equipment and a construction method. The sealing assembly comprises a supporting frame and a plurality of sealing plates, the supporting frame is detachably connected with the lining body, and the sealing plates are laid on the inner wall of the lining body through the supporting frame and used for sealing the interior of the lining body; the monitoring assembly comprises a plurality of monitoring pieces, and the monitoring pieces are installed on the inner wall of the lining body and used for monitoring the sealing state of the sealing plate; and the sealing plate is made of a rubber material. The problems that when the gas storage chamber has the airtight failure, the failure part cannot be detected, and the failure part cannot be rapidly replaced are solved.

Description

Technical Field

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

[0002] The proportion of renewable energy such as wind power and solar power continues to rise, but their intermittent and unstable nature has led to a significant contradiction between power generation and actual power demand. This imbalance between supply and demand not only affects the stability of the power system, but also causes a large amount of clean energy to be forced to "abandon wind" and "abandon light" when demand is low, and cannot be fully utilized. Therefore, in order to improve the absorption capacity of renewable energy, compressed gas energy storage technology came into being and became a key link in the development of a modern energy system.

[0003] Compressed gas energy storage facilities effectively store and reuse electricity by converting excess electricity into compressed air and storing it underground or in closed containers. This technology can not only alleviate the load on the power grid and balance electricity demand, but also provide rapid response in a short period of time, enhancing the flexibility and stability of the power system. In this process, the design and operation efficiency of the gas storage chamber are crucial and directly related to the overall performance and economy of the system. Traditional gas storage chambers mostly use a steel lining sealing layer structure, which has high resource consumption and is difficult to construct. When the gas storage chamber fails to be airtight, it is impossible to detect the failed part and the failed parts cannot be quickly replaced.

[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 the present invention is to provide a sealing structure and a construction method for a compressed gas energy storage device to solve the problems existing in the above-mentioned prior art.

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

[0007] Lining body;

[0008] A sealing assembly, comprising a support frame and a plurality of sealing plates, wherein the support frame is detachably connected to the lining body, and the plurality of sealing plates are laid on the inner wall of the lining body through the support frame to seal the interior of the lining body;

[0009] A monitoring assembly, comprising a plurality of monitoring components, wherein the plurality of monitoring components are respectively installed on the inner wall of the lining body and are used to monitor the sealing state of the sealing plate;

[0010] The sealing plate is made of rubber.

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

[0012] A plurality of node supports are detachably connected to the inner wall of the lining body, and the plurality of node supports are distributed in an array;

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

[0014] A plurality of sealing members are arranged on the node support and the connection support, and the sealing plate is connected to the node support and the connection support in a limiting manner through the sealing members.

[0015] According to a sealing structure for a compressed gas energy storage device provided by the present invention, the sealing member comprises:

[0016] A first sealing block, adapted to the node support, the first sealing block is detachably connected to the node support and is arranged in contact with the sealing plate;

[0017] The second sealing block is matched with the connection support, and the second sealing block is detachably connected to the connection support and is arranged in contact with the sealing plate.

[0018] According to a sealing structure for a compressed gas energy storage device provided by the present invention, first protrusions are provided on the four corners of the node support, 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 a sealing structure for a compressed gas energy storage device provided by the present invention, second protrusions are provided at both ends of the connecting support, and the connecting support forms an I-shaped groove through the two second protrusions. The second sealing block is adapted to the I-shaped groove, and the I-shaped groove is connected to the cross-shaped groove.

[0020] According to a sealing structure for a compressed gas energy storage device provided by the present invention, 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 compressed air energy storage equipment 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 I-shaped groove and contacts the first sealing block and the second sealing block.

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

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

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

[0025] Installing the monitoring component on the inner wall of the lining body;

[0026] Installing the support frame on the inner wall of the lining body;

[0027] A plurality of sealing plates are installed on the inner wall of the lining body and connected to the supporting frame.

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

[0029] The present invention provides a sealing structure and construction method for compressed air energy storage equipment, wherein a plurality of monitoring components are installed on a lining body, and a support frame is installed, and then sealing plates are installed and connected to the support frame to achieve sealing. The positions of the sealing plates are sealed and monitored by the plurality of monitoring components, and when airtightness failure is detected, the corresponding sealing plates are conveniently replaced by accurately locating the failure position. The present invention adopts rubber material to make the sealing layer, which is cheaper than the traditional steel lining sealing layer, accounting for about 8% of the cost of the gas storage, and can adapt to the installation environment of the gas storage chamber under various different environments. It has the characteristics of light weight and cross-construction in construction, and can complete the installation of the sealing layer in a short construction period, while realizing the increase of the single operation time of the gas storage chamber and the extension of the overall life; each rubber sealing layer is monitored in real time, and the leakage point is targeted and located, and timely feedback can be achieved for the part with airtight failure, which effectively solves the problem that the traditional gas storage chamber cannot handle the airtight failure; the glue-free and modular crimping process is realized and implemented, and then when the airtight sensor feedbacks the local airtight failure, the sealing plate of the failed part can be quickly disassembled, inspected and installed, that is, modular replacement is performed. The implementation of the glue-free and modular construction method for the rubber sealing layer will save the resource consumption of construction to a great extent, and bring great convenience to the subsequent supervision, repair and replacement of the gas storage chamber. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative labor:

[0031] Figure 1 It 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 structure of the monitoring element 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 installation state of the support frame of the present invention;

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

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

[0040] Fig.10 It is a schematic diagram of the connection state of the sealing plate, the node support and the connecting support of the present invention;

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

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

[0043] Fig.13 It is a schematic diagram of the sealing structure of the present invention;

[0044] Among them, 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 DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0046] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

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

[0048] Lining body 1;

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

[0050] A monitoring assembly, including a plurality of monitoring components, which are respectively installed on the inner wall of the lining body 1 and are used to monitor the sealing state of the sealing plate 2;

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

[0052] Specifically, a number of monitoring components are installed on the lining body 1, and a supporting frame is installed. Subsequently, the sealing plates 2 are installed and connected to the supporting frame to achieve sealing and ensure the sealing effect. The positions of the sealing plates 2 are sealed and monitored by the set monitoring components. When an airtight failure is detected, the corresponding sealing plate 2 can be conveniently replaced by accurately locating the failure position.

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

[0054] A plurality of node supports 3 are detachably connected to the inner wall of the lining body 1, and the plurality of node supports 3 are distributed in an array;

[0055] A plurality of 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] A plurality of sealing members are arranged on the node support 3 and the connecting support 4, and the sealing plate 2 is connected with the node support 3 and the connecting support 4 in a limiting manner through the sealing members.

[0057] In one implementation of the present invention, referring to Figure 1 , Figure 6 , Fig.13 A plurality of threaded holes 13 are provided on the lining body 1 , and the node supports 3 and the connecting supports 4 are assembled and installed on the lining body 1 through the threaded holes 13 and bolts 15 .

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

[0059] As an optional embodiment, the sealing member includes:

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

[0062] In one implementation of the present invention, referring to Figure 1 , Figure 4 , Figure 5 , Fig. 9 , Fig.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 a first sealing block 5 and a second sealing block 6 on the node support 3 and the connecting support 4 respectively.

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

[0064] As an optional implementation, first protrusions 7 are provided on the four corners of the node support 3, 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 implementation of the present invention, referring to Figure 4 , Fig.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 squeeze the end of the sealing plate 2 extending into the cross-shaped groove into the cross-shaped groove, thereby ensuring the sealing effect.

[0066] As an optional embodiment, second protrusions 8 are provided at both ends of the connecting support 4, and the connecting support 4 forms an I-shaped groove through the two second protrusions 8. The second sealing block 6 is adapted to the I-shaped groove, and the I-shaped groove is connected to the cross-shaped groove.

[0067] In one implementation of the present invention, referring to Figure 5 , Fig.12 The second sealing block 6 is adapted to the I-shaped groove, and the bottom is a wedge-shaped structure, which is used to squeeze the end of the sealing plate 2 that extends into the I-shaped groove into the I-shaped groove, thereby ensuring the sealing effect. The sealing plate 2 is tightly fitted into the inner groove of each support through the wedge block and bolts, forming a complete and reliable new type of glue-free, modular structure.

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

[0069] In one implementation of the present invention, referring 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 an M-shaped structure, and 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 , and the sealing ring is sleeved in the cross-shaped groove and the I-shaped groove and contacts the first sealing block 5 and the second sealing block 6 .

[0071] In one implementation of the present invention, referring to Figure 8 , Fig. 9 , Fig.10 By setting a sealing ring structure on the sealing plate 2, the side of the entire sealing plate 2 can be covered so that it can extend into the cross-shaped groove and the straight groove, and is extruded and installed by 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 assembled.

[0072] Specifically, the sealing ring structure belongs to the form of edging installation, so when installing the sealing plate 2, it is necessary to use tools such as crowbars to buckle the four corners of the sealing plate 2 into the special node support 3 in turn, and buckle the four sides into the connecting support 4 while processing the edging. Each node support 3 is used to install the corners of four adjacent sealing plates 2, and each connecting support 6 is used to install the edges of 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 , an air pressure sensor 10 is installed in the reserved hole 9 , and a breathable steel 11 is fixedly connected to the reserved hole 9 .

[0074] In one implementation of the present invention, referring to Figure 3 The air pressure sensor 10 is used to monitor the sealing condition of the sealing plate 2. The specific air pressure sensor 10 is preferably a sensor dedicated to the gas storage chamber.

[0075] Specifically, a plurality of air pressure sensors 10 correspond one-to-one with a plurality of sealing plates 2, and are used to accurately locate the position of airtight failure, and to perform targeted and accurate positioning of the failed part, so as to facilitate subsequent replacement.

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

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

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

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

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

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

[0082] When in use, firstly, it is necessary to drill a reserved hole 9 for installing the air pressure sensor 10 and a threaded hole 13 for installing the bolt 15 on the pre-constructed lining body 1. After the drilling part is prepared, the air pressure sensor 10 is installed in the reserved hole 9 and sealed and welded with a breathable steel 11. Subsequently, it is connected to the outside of the gas storage chamber by wire for feedback of the airtightness. The node support 3 and the connecting support 4 are installed on the threaded hole 13 with the bolt 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 should be added between it and the lining body 1 to ensure the sealing of adjacent components. The sealing plate 2 should be bent and installed on site. When installing the sealing layer, the four corners of the sealing plate 2 should be buckled into the node support 3 in sequence using tools such as a crowbar. While processing the edging, the four sides should be buckled into the connecting support 4 to achieve the installation of the sealing plate 2. After installation, the sealing effect is guaranteed. Subsequently, the corresponding sealing plate 2 is monitored by the set air pressure sensor 10. When necessary, the individual sealing plate 2 can be conveniently disassembled and replaced.

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

[0084] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A sealing structure for compressed gas energy storage equipment, characterized in that: include: Lining body (1); A sealing assembly, comprising a support frame and a plurality of sealing plates (2), wherein the support frame is detachably connected to the lining body (1), and the plurality of sealing plates (2) are laid on the inner wall of the lining body (1) through the support frame, and are used to seal the interior of the lining body (1); A monitoring assembly, comprising a plurality of monitoring components, wherein the plurality of monitoring components are respectively mounted on the inner wall of the lining body (1) and are used to monitor the sealing state of the sealing plate (2); The sealing plate (2) is made of rubber.

2. A sealing structure for compressed gas energy storage equipment according to claim 1, characterized in that: The support frame comprises: A plurality of node supports (3) are detachably connected to the inner wall of the lining body (1), and the plurality of node supports (3) are distributed in an array; A plurality of connection supports (4) which are detachably connected to the inner wall of the lining body (1) and are located between two adjacent node supports (3); A plurality of sealing members are arranged on the node support (3) and the connection support (4), and the sealing plate (2) is position-limitedly connected to the node support (3) and the connection support (4) via the sealing members.

3. A sealing structure for compressed gas energy storage equipment according to claim 2, characterized in that: The sealing member comprises: A first sealing block (5) adapted to the node support (3), the first sealing block (5) being detachably connected to the node support (3) and being arranged in contact with the sealing plate (2); The second sealing block (6) is adapted to the connection support (4); the second sealing block (6) is detachably connected to the connection support (4) and is arranged in contact with the sealing plate (2).

4. A sealing structure for compressed gas energy storage equipment according to claim 3, 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), and the first sealing block (5) is adapted to the cross-shaped groove.

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

6. A sealing structure for compressed gas energy storage equipment according to claim 5, characterized in that: Two adjacent first protrusions (7) on the node support (3) and two adjacent second protrusions (8) on the connection support (4) form an M-shaped structure.

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

8. The sealing structure for compressed gas energy storage equipment according to claim 3, characterized in that: The monitoring component comprises a reserved hole (9) formed on the inner wall of the lining body (1), an air pressure sensor (10) is installed in the reserved hole (9), and a breathable steel (11) is fixedly connected to the reserved hole (9).

9. The sealing structure for compressed gas energy storage equipment according to claim 1, characterized in that: A wire mesh interlayer (12) is provided inside the sealing plate (2).

10. A construction method for a sealing structure for a compressed gas energy storage device, according to claim 1, characterized in that: The following steps are involved: The monitoring component is installed on the inner wall of the lining body (1); Installing the support frame on the inner wall of the lining body (1); A plurality of sealing plates (2) are installed on the inner wall of the lining body (1) and connected to the support frame.

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