Trapezoidal depression bar combined sealing lining structure, underground garage of compressed air energy storage power station and construction method of underground garage

Abstract

The invention provides a trapezoidal pressing strip combined sealing lining structure, a compressed air energy storage power station underground garage and a construction method of the compressed air energy storage power station underground garage, and belongs to the technical field of energy storage devices. The trapezoid pressing strip combined sealing lining structure comprises frameworks, a plurality of sealing layers and pressing strips, hollowed-out faces are formed between the frameworks, after the pressing strips are assembled with fixing bottom plates and wing plates of the frameworks, sealing layer clamping grooves are formed between the frameworks and the pressing strips, the sealing layers are spread in the hollowed-out faces, the sealing layer clamping grooves are filled with the free edges of the sealing layers, and the sealing layers are arranged in the sealing layer clamping grooves. And the plurality of sealing layers are connected into a whole to form the trapezoidal pressing strip combined sealing lining structure. The underground garage of the compressed air energy storage power station comprises a concrete lining layer and the trapezoidal pressing strip combined sealing lining structure, wherein the trapezoidal pressing strip combined sealing lining structure is fixedly arranged on the inner wall of the concrete lining layer. According to the construction method of the underground cave depot of the compressed air energy storage power station, the cave depot can be obtained. Construction is easy and convenient, working efficiency is high, sealing performance is good, and manufacturing cost is low.

Description

Technical Field

[0001] The present invention relates to the technical field of compressed air energy storage devices, and particularly to a trapezoidal strip combined sealing inner lining structure, an underground cavern of a compressed air energy storage power station, and a construction method thereof. Background Art

[0002] Compressed air energy storage technology is an environmentally friendly and efficient large-capacity long-term physical energy storage technology. It does not require the use of fossil fuels and does not emit harmful substances, so it is environmentally friendly. This technology significantly improves the power generation and power consumption time-space structure of the power grid, enhances the peak shaving capacity of the power grid, and solves the intermittency problem of renewable energy. In China, this technology is being widely promoted and applied. However, in the prior art, the sealing structure of the underground cavern of a compressed air energy storage power station usually has unsatisfactory performance and low construction efficiency. Summary of the Invention

[0003] In view of this, the present invention provides a trapezoidal strip combined sealing inner lining structure, an underground cavern of a compressed air energy storage power station, and a construction method thereof, which are simple in construction, high in working efficiency, excellent in sealing performance, and low in cost, thus being more suitable for practical use.

[0004] In order to achieve the first above-mentioned object, the technical solution of the trapezoidal strip combined sealing inner lining structure provided by the present invention is as follows:

[0005] The trapezoidal strip combined sealing inner lining structure provided by the present invention includes a skeleton (2), a plurality of sealing layers (5), and a strip (4).

[0006] A hollow surface is formed between the skeletons (2).

[0007] Each skeleton (2) includes a fixed bottom plate (3) and two wing plates. One end of each wing plate is fixedly connected to one side edge of the skeleton (2) by means of its edge, and the other end of the wing plate forms a free end, so that a groove is formed between the fixed bottom plate (3) and the two wing plates. Moreover, the two free ends respectively have correspondingly arranged flanges facing the corresponding inner sides.

[0008] The strip (4) can be fixed into the groove.

[0009] The radial cross-section of the strip (4) is trapezoidal. The longer base of the trapezoid faces the opening side of the groove, and the shorter base of the trapezoid abuts against the inner side of the fixed bottom plate (3). When the strip (4) is assembled with the skeleton (2), a sealing layer clamping groove is formed between the strip, the fixed bottom plate (3), and the wing plate.

[0010] The sealing layer (5) is spread within the hollowed-out surface, and the free edge of the sealing layer (5) is stuffed into the sealing layer clamping groove, so that a plurality of the sealing layers (5) are joined together to form the trapezoidal strip combination sealing inner lining structure.

[0011] The trapezoidal strip combination sealing inner lining structure provided by the present invention can also be further realized by adopting the following technical measures.

[0012] Preferably, the wing plate is concavely recessed on the inner side close to the fixed bottom plate (3) to form a notch, and the sealing layer (5) fills the notch within the notch.

[0013] Preferably, the skeleton (2) includes a warp skeleton (21) and a weft skeleton (22),

[0014] After the warp skeleton (21) and the weft skeleton (22) are intertwined, a cylindrical shape is formed, and the hollow is formed between two adjacent warp skeletons (21) and between two adjacent weft skeletons (22).

[0015] Preferably, it further includes an arc-shaped skeleton (23),

[0016] The arc-shaped skeleton (23) is the weft skeleton (22) of the warp skeleton near both ends of the skeleton (2),

[0017] The diameter of the weft skeleton (22) gradually decreases near the end of the axial direction of the cylindrical shape,

[0018] One end of the arc-shaped skeleton (23) is connected to the weft skeleton (22) with a larger diameter, and the other end of the arc-shaped skeleton (23) is connected to the weft skeleton (22) with a smaller diameter, so that the diameters at both axial ends of the cylindrical shape gradually contract to form a dome.

[0019] As a preference for the trapezoidal strip combination, the fixed bottom plate (3) of the skeleton (2) and the two wing plates are integrally formed.

[0020] For the trapezoidal strip combination to achieve the above second purpose, the technical solution of the underground chamber of the compressed air energy storage power station provided by the present invention is as follows:

[0021] The underground chamber of the compressed air energy storage power station provided by the present invention includes a concrete lining layer (1) and the trapezoidal strip combination sealing inner lining structure provided by the present invention,

[0022] The trapezoidal strip combination sealing inner lining structure is fixedly arranged on the inner wall of the concrete lining layer (1).

[0023] The underground chamber of the compressed air energy storage power station provided by the present invention can also be further realized by adopting the following technical measures.

[0024] Preferably, the underground chamber of the compressed air energy storage power station further includes a fastener (7),

[0025] After the fastener (7) passes through the skeleton (2) and the fixed bottom plate (3), it terminates within the sealing layer (5).

[0026] Preferably, the fastener (7) is an anchor bolt.

[0027] Preferably, a receiving groove is provided on the inner wall of the concrete lining layer (1),

[0028] The receiving groove is adapted to the shapes of the fixed bottom plate (3) and the wing plate of the skeleton (2), so that the fixed bottom plate (3) and the wing plate of the skeleton (2) are embedded in the receiving groove.

[0029] In order to achieve the above third object, the technical solution of the construction method of the underground chamber of the compressed air energy storage power station provided by the present invention is as follows:

[0030] The construction method of the underground chamber of the compressed air energy storage power station provided by the present invention includes the following steps:

[0031] Lay out the skeleton (2) on the inner wall of the underground chamber of the compressed air energy storage power station;

[0032] Lay out the skeleton (2) on the inner wall of the underground chamber of the compressed air energy storage power station, form a receiving space between the fixed bottom plate (3) and the wing plate of the skeleton (2), and a hollow surface is formed between the skeletons (2);

[0033] Lay out the sealing layer (5) in the hollow surface, and the free edge of the sealing layer (5) is stuffed into the receiving space, so that a plurality of the sealing layers (5) are joined together to form the trapezoidal strip combined sealing lining structure;

[0034] Combine the strip into the receiving space, a sealing layer clamping groove is formed between the strip (4), the fixed bottom plate (3) and the wing plate, and the free edge of the sealing layer (5) is stuffed into the sealing layer clamping groove.

[0035] The construction method of the underground chamber of the compressed air energy storage power station provided by the present invention can also be further realized by adopting the following technical measures.

[0036] Preferably, before the step of laying out the fixed bottom plate (3) on the inner wall of the underground chamber of the compressed air energy storage power station, the construction method of the underground chamber of the compressed air energy storage power station further includes the following steps:

[0037] On the inner wall of the concrete lining layer (1), accommodation grooves are chiseled at positions corresponding to the fixed bottom plate (3) and the wing plates of the framework (2). The accommodation grooves are adapted to the shape of the fixed bottom plate (3) such that the fixed bottom plate (3) and the wing plates of the framework (2) can be embedded in the accommodation grooves.

[0038] Preferably, the construction method of the underground chamber of the compressed air energy storage power station further comprises the following steps:

[0039] Carry out a gas storage test on the underground chamber of the compressed air energy storage power station to determine the sealing performance of the underground chamber;

[0040] Perform real-time monitoring on possible air leakage points of the underground chamber of the compressed air energy storage power station.

[0041] Preferably, during the step of performing real-time monitoring on possible air leakage points of the underground chamber of the compressed air energy storage power station, the possible air leakage points include: one or more of the connection positions between the sealing layer (5) and the fixed bottom plate (3), the connection position between the fixed bottom plate (3) and the framework (2), the connection position between the fixed bottom plate (3) and the concrete lining layer (1), and the parts of the sealing layer (5) itself.

[0042] Preferably, performing real-time monitoring on possible air leakage points of the underground chamber specifically comprises the following steps:

[0043] Set gas flow monitoring instruments at possible air leakage points of the underground chamber of the compressed air energy storage power station, and set position tags for each gas flow monitoring instrument;

[0044] Set an alarm threshold for the gas flow monitoring instrument according to the position where the gas flow monitoring instrument is located;

[0045] After a gas flow anomaly alarm occurs, determine the air leakage point of the underground chamber of the compressed air energy storage power station according to the position tag of the gas flow monitoring instrument that alarms.

[0046] The trapezoidal bead combination sealing lining structure provided by the present invention can connect the sealing layer 5 by using the sealing layer clamping groove formed between the bead 4, the fixed bottom plate 3 and the wing plate of the skeleton 2 after assembly. Among them, the free edge of the sealing layer 5 is stuffed into the sealing layer clamping groove, so that an engagement is formed between the sealing layer 5 and the sealing layer clamping groove. In addition, since the radial cross-section of the bead 4 is trapezoidal, the longer bottom plate of the trapezoid faces the opening side of the groove, and the shorter bottom edge of the trapezoid abuts against the inner side of the fixed bottom plate. Therefore, the gap of the clamping groove is larger near the position of the fixed bottom plate 3, and the gap of the clamping groove is smaller near the position of the longer bottom edge of the trapezoid. Therefore, during installation, the sealing layer 5 can be first clamped in the clamping groove and then the bead 4 can be installed. At this time, the sealing layer first forms a large contact surface with the inner side of the clamping groove by using its free end, and also uses the smaller gap near the position of the longer bottom edge of the trapezoid of the clamping groove to prevent the sealing layer 5 from shifting or coming out, ensuring airtightness. Therefore, it is formed on the inner side of the concrete lining layer 1 of the underground chamber of the compressed air energy storage power station. Its construction period is shorter than that of welded steel plates, the cost is lower, it has good sealing performance, and the components are convenient to replace and easier to maintain. On the premise that its fastening is ensured, its airtightness can meet the use requirements. In addition, the construction period of the sealing layer 5 is short, and the components can be prefabricated. Compared with the disadvantage of the traditional steel plate lining that needs to be welded on site, a lot of construction period can be saved, and the cost will also be lower. During maintenance, only the damaged part needs to be directly replaced. Description of the Drawings

[0047] By reading the following detailed description of the preferred embodiments, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered to be a limitation of the present invention. Moreover, throughout the drawings, the same reference numerals are used to represent the same components. In the drawings:

[0048] Attached Figure 1 is the axial cross-sectional view of the internal perspective of the underground chamber of the compressed air energy storage power station provided by the embodiment of the present invention;

[0049] Attached Figure 2 is for Figure 1 the partial enlarged structural schematic diagram of part A in the attachment;

[0050] Attached Figure 3 is the partial three-dimensional view of the internal perspective of the underground chamber of the compressed air energy storage power station provided by the embodiment of the present invention;

[0051] Attached Figure 4a is for Figure 3 the partial enlarged structural schematic diagram of part B in the attachment;

[0052] Attached Figure 4b is for Figure 3 the cross-sectional view of the partial enlarged structure of part B in the attachment;

[0053] Appendix Figure 5 It is a radial sectional view structure diagram at the non-strip position of the internal perspective of the underground chamber of the compressed air energy storage power station provided by the embodiment of the present invention;

[0054] Appendix Figure 6 For the appendix Figure 5 It is a partial enlarged structure schematic diagram of part C in the appendix;

[0055] Appendix Figure 7 It is a radial sectional view structure diagram at the strip position of the internal perspective of the underground chamber of the compressed air energy storage power station provided by the embodiment of the present invention;

[0056] Appendix Figure 8 For the appendix Figure 7 It is a partial enlarged structure schematic diagram of part D in the appendix;

[0057] Appendix Figure 9 It is a structure schematic diagram after the strips are connected in the underground chamber of the compressed air energy storage power station provided by the embodiment of the present invention;

[0058] Appendix Figure 10 It is a three-dimensional structure schematic diagram of a single strip.

[0059] Explanation of reference numerals:

[0060] 1 - Concrete lining layer, 2 - Skeleton, 21 - Radial skeleton, 22 - Circumferential skeleton, 23 - Arc skeleton, 3 - Fixed bottom plate, 4 - Strip, 5 - Sealing layer, 7 - Fastener, 8 - Weld. Specific embodiments

[0061] In view of this, the present invention provides a trapezoidal strip combined sealing lining structure, an underground chamber of a compressed air energy storage power station and its construction method, which are simple to construct, have high working efficiency, excellent sealing performance, and low cost, so they are more suitable for practical use.

[0062] To further elaborate on the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the following combines the drawings and preferred embodiments to detail the specific embodiments, structures, features and effects of a trapezoidal strip combined sealing lining structure, an underground chamber of a compressed air energy storage power station and its construction method proposed according to the present invention. In the following description, different "one embodiment" or "embodiment" do not necessarily refer to the same embodiment. In addition, the specific features, structures, or characteristics in one or more embodiments can be combined in any suitable form.

[0063] As used herein, the term "and / or" is merely a description of the relationship between associated objects, indicating that three relationships may exist. For example, A and / or B is specifically understood as follows: it may include both A and B at the same time, A may exist alone, or B may exist alone, and any of the above three situations can be satisfied.

[0064] Trapezoidal batten combined sealing inner lining structure

[0065] See the appendix Figure 1 - Appendix Figure 10 In the trapezoidal bead combined sealing lining structure provided by the embodiment of the present invention, it includes a skeleton 2, a plurality of sealing layers 5, and a bead 4. A hollow surface is formed between the skeletons 2. Each of the skeletons (2) includes a fixed bottom plate (3) and two wing plates. One end of the wing plate is fixedly connected to one side edge of the skeleton (2) by means of its edge, and the other end of the wing plate forms a free end, so that a groove is formed between the fixed bottom plate (3) and the two wing plates. Moreover, the two free ends respectively have correspondingly arranged flanges towards the corresponding inner sides. The bead (4) can be fixed into the groove. The radial cross-section of the bead (4) is trapezoidal, the longer bottom side of the trapezoid faces the opening side of the groove, and the shorter bottom side of the trapezoid abuts against the inner side of the fixed bottom plate (3). When the bead 4 and the skeleton 2 are assembled, a sealing layer clamping groove is formed between the fixed bottom plate 3 and the wing plate. The sealing layer 5 is spread in the hollow surface, and the free edge of the sealing layer 5 is stuffed into the sealing layer clamping groove, so that a plurality of sealing layers 5 are connected into one body to form a trapezoidal bead combined sealing lining structure.

[0066] The trapezoidal bead combined sealing lining structure provided by the embodiment of the present invention can connect the sealing layer 5 by using the sealing layer clamping groove formed between the bead 4, the fixed bottom plate 3 of the skeleton 2, and the wing plate after assembly. Among them, the free edge of the sealing layer 5 is stuffed into the sealing layer clamping groove, so that an engagement is formed between the sealing layer 5 and the sealing layer clamping groove. In addition, since the radial cross-section of the bead 4 is trapezoidal, the longer bottom plate of the trapezoid faces the opening side of the groove, and the shorter bottom side of the trapezoid abuts against the inner side of the fixed bottom plate, therefore, it can be made that the gap of the clamping groove is larger at the position close to the fixed bottom plate 3 and smaller at the position close to the longer bottom side of the trapezoid. Therefore, during installation, the sealing layer 5 can be first clamped in the clamping groove and then the bead 4 can be installed. At this time, the sealing layer first forms a large contact surface with the inner side of the clamping groove by using its free end, and also uses the smaller gap at the position of the clamping groove close to the longer bottom side of the trapezoid to prevent the sealing layer 5 from shifting or coming out, ensuring airtightness.

[0067] The wing plate is concave at the inner side close to the fixed bottom plate (3) to form a notch, and the sealing layer (5) fills the notch. In this case, the free end of the sealing layer 5 has a larger filling and accommodation space in the notch, the volume of the sealing layer 5 that can be accommodated is larger, the force applied to prevent the displacement or escape of the sealing layer 5 is larger, and the sealing stability can be further ensured.

[0068] The frame 2 includes a warp frame 21 and a weft frame 22. The warp frame 21 and the weft frame 22 are interwoven to form a cylindrical shape, and a hollow is formed between two adjacent warp frames 21 and two adjacent weft frames 22. In this embodiment, the warp frames 21 and the weft frames 22 are evenly distributed, so that the trapezoidal bead combined sealing lining structure provided in the embodiment of the present invention can be isotropic. When prefabricating the sealing layer 5, only a standard prefabricated sealing layer 5 needs to be made to achieve replacement when the parts are damaged.

[0069] Among them, the trapezoidal beading combined sealing lining structure provided by the embodiment of the present invention also includes an arc-shaped skeleton 23. The arc-shaped skeleton 23 is the warp skeleton of the weft skeleton 22 near the two ends of the skeleton 2. The diameter of the weft skeleton 22 near the end of the cylindrical axial direction gradually decreases. One end of the arc-shaped skeleton 23 is connected to the weft skeleton 22 with a larger diameter, and the other end of the arc-shaped skeleton 23 is connected to the weft skeleton 22 with a smaller diameter, so that the diameter of the cylinder at both ends of the axial direction gradually shrinks to form a dome. In this case, the trapezoidal beading combined sealing lining structure provided by the embodiment of the present invention also includes an arc-shaped skeleton 23, so that domes can be formed at both ends of the axial direction, thereby making the application scope of the trapezoidal beading combined sealing lining structure provided by the embodiment of the present invention wider. In this case, the sealing layer 5 between two adjacent arc-shaped skeletons 23 is different from the sealing layer 5 between the warp skeleton 21 and the weft skeleton 22. Therefore, it is necessary to prefabricate the sealing layer 5 parts for replacement according to the size of the arc-shaped skeleton 23.

[0070] The fixed bottom plate 3 of the frame 2 and the two wing plates are integrally formed. In this embodiment, when the fixed bottom plate 3 of the frame 2 and the two wing plates are integrally formed, CAD cutting and CAM cutting can be used for integral forming. There is no connection joint in the integral forming process, which can reduce stress concentration, thereby extending the trapezoidal bead combined sealing lining structure provided in the embodiment of the present invention.

[0071] Among them, the trapezoidal strip combined sealing lining structure further includes a buffer pad. The buffer pad is arranged between the sealing layer 5 and the sealing layer clamping groove. In this embodiment, the buffer pad can be made of a material with a relatively high damping coefficient or a deformable material under pressure, such as rubber or natural latex. In this case, through the buffer pad, the damping between the sealing layer 5, the skeleton 2, and the fixed bottom plate 3 can be increased, and the difficulty of the sealing layer 5 coming out from between the skeleton 2 and the fixed bottom plate 3 can be made higher. Thus, the connection stability of the trapezoidal strip combined sealing lining structure provided by the embodiment of the present invention is further ensured, and the airtightness of the trapezoidal strip combined sealing lining structure provided by the embodiment of the present invention is further ensured.

[0072] Underground chamber of compressed air energy storage power station

[0073] The underground chamber of the compressed air energy storage power station provided by the present invention includes a concrete lining layer 1 and the trapezoidal strip combined sealing lining structure provided by the present invention. The trapezoidal strip combined sealing lining structure is fixedly arranged on the inner wall of the concrete lining layer 1.

[0074] Forming the trapezoidal strip combined sealing lining structure provided by the embodiment of the present invention on the inner side of the concrete lining layer 1 of the underground chamber of the compressed air energy storage power station has a shorter construction period and lower cost compared with welding steel plates. It has good sealing performance, convenient replacement of components, and is easier to maintain. On the premise that the fastening performance is ensured, its airtightness can meet the use requirements. In addition, the construction period of the sealing layer 5 is short, and the components can be prefabricated. Compared with the disadvantages of traditional steel plate lining that requires on-site welding, a lot of construction period can be saved, and the cost will also be lower. During maintenance, directly replace the damaged part.

[0075] Among them, the underground chamber of the compressed air energy storage power station further includes a fastener 7. After the fastener 7 passes through the skeleton 2 and the fixed bottom plate 3, it terminates inside the sealing layer 5. In this case, by using the fastener 7 to fix the trapezoidal strip combined sealing lining structure provided by the embodiment of the present invention in the concrete lining layer 1, the possibility of the overall trapezoidal strip combined sealing lining structure provided by the embodiment of the present invention shifting inside the concrete lining layer 1 can be reduced, thereby ensuring the implementation stability of the underground chamber of the compressed air energy storage power station provided by the embodiment of the present invention.

[0076] Among them, the fastener 7 is an anchor bolt. In this case, using an anchor bolt as the connection between the skeleton 2, the fixed bottom plate 3 and the concrete lining layer 1 of the underground chamber of the compressed air energy storage power station has a simple, convenient technical solution and low cost.

[0077] Among them, a receiving groove is provided on the inner wall of the concrete lining layer 1. The receiving groove is adapted to the shapes of the fixed bottom plate 3 and the wing plate of the skeleton 2, so that the fixed bottom plate 3 and the wing plate of the skeleton 2 are embedded in the receiving groove. In this case, the limiting effect formed by the side walls of the receiving groove itself can be utilized to prevent the fixed bottom plate 3 from shifting relative to the concrete lining layer 1, making the application stability of the underground chamber of the compressed air energy storage power station provided by the embodiment of the present invention better.

[0078] Construction method of underground chamber of compressed air energy storage power station

[0079] The construction method of the underground chamber of the compressed air energy storage power station provided by the present invention includes the following steps:

[0080] Step S1: Arrange the skeleton 2 on the inner wall of the underground chamber of the compressed air energy storage power station;

[0081] Step S2: Arrange the skeleton 2 on the inner wall of the underground chamber of the compressed air energy storage power station, form a receiving space between the fixed bottom plate 3 and the wing plate of the skeleton 2, and a hollow surface is formed between the skeletons 2;

[0082] Step S3: Spread the sealing layer 5 in the hollow surface, and the free edge of the sealing layer 5 is stuffed into the receiving space, so that a plurality of sealing layers 5 are joined together to form a trapezoidal strip combination sealing lining structure;

[0083] Step S4: Combine the strips into the receiving space, a sealing layer clamping groove is formed between the strip 4, the fixed bottom plate 3 and the wing plate, and the free edge of the sealing layer 5 is stuffed into the sealing layer clamping groove.

[0084] Through the construction method of the underground chamber of the compressed air energy storage power station provided by the embodiment of the present invention, the trapezoidal strip combination sealing lining structure provided by the embodiment of the present invention can be formed on the inner side of the concrete lining layer 1 of the underground chamber of the compressed air energy storage power station. Its construction period is shorter than that of welding steel plates, the cost is lower, it has good sealing performance, and the components are convenient to replace and easier to maintain. On the premise that the fastening property is guaranteed, the airtightness can meet the use requirements. In addition, the construction period of the sealing layer 5 is short, and the components can be prefabricated. Compared with the disadvantage of the traditional steel plate lining that requires on-site welding, a lot of construction period can be saved, and the cost will also be lower. When overhauling, just replace the damaged part directly.

[0085] Among them, before the step of arranging the fixed bottom plate 3 on the inner wall of the underground chamber of the compressed air energy storage power station in the construction method of the underground chamber of the compressed air energy storage power station, the following steps are further included:

[0086] On the inner wall of the concrete lining layer 1, accommodation grooves are chiseled at positions corresponding to the fixed bottom plate 3 and the wing plates of the framework 2. The accommodation grooves are adapted to the shape of the fixed bottom plate 3, so that the fixed bottom plate 3 and the wing plates of the framework 2 can be embedded in the accommodation grooves.

[0087] In this case, the limiting effect formed by the side walls of the accommodation grooves themselves can be utilized to prevent the fixed bottom plate 3 from shifting relative to the concrete lining layer 1, making the application stability of the underground chamber of the compressed air energy storage power station provided by the embodiment of the present invention better.

[0088] Among them, the construction method of the underground chamber of the compressed air energy storage power station further includes the following steps:

[0089] Carry out a gas storage test on the underground chamber of the compressed air energy storage power station to determine the sealing performance of the underground chamber;

[0090] Perform real-time monitoring on the possible air leakage points of the underground chamber of the compressed air energy storage power station.

[0091] In this case, by performing real-time monitoring on the possible air leakage points of the underground chamber, once an air leakage phenomenon occurs, it can be known and remedied in time.

[0092] Among them, during the step of performing real-time monitoring on the possible air leakage points of the underground chamber of the compressed air energy storage power station, the possible air leakage points include: one or more of the connection positions between the sealing layer 5 and the fixed bottom plate 3, the connection positions between the fixed bottom plate 3 and the framework 2, the connection positions between the fixed bottom plate 3 and the concrete lining layer 1, and the parts of the sealing layer 5 itself. In this case, real-time monitoring can be accurately performed on the possible air leakage points of the underground chamber.

[0093] Among them, the specific steps for performing real-time monitoring on the possible air leakage points of the underground chamber include the following:

[0094] At the possible air leakage points of the underground chamber of the compressed air energy storage power station, install gas flow monitoring instruments, and set position labels for each gas flow monitoring instrument;

[0095] Set an alarm threshold for the gas flow monitoring instrument according to the position where the gas flow monitoring instrument is located;

[0096] When an abnormal gas flow alarm occurs, determine the air leakage point of the underground chamber of the compressed air energy storage power station according to the position label of the gas flow monitoring instrument that alarms.

[0097] In this case, once air leakage occurs at the possible air leakage points of the underground chamber, the air leakage point of the underground chamber can be accurately determined according to the alarm information and the position label of the gas flow monitoring instrument, so as to take emergency repair measures.

[0098] Although the preferred embodiments of the present invention have been described, additional changes and modifications can be made by those skilled in the art once they learn the basic creative concept. Therefore, the appended claims are intended to be construed to include the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0099] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention is also intended to include these modifications and variations.

Claims

1. A trapezoidal strip combined sealing inner lining structure, characterized in that, It includes a framework (2), multiple sealing layers (5) and a bead (4), An open surface is formed between the frameworks (2), Each framework (2) includes a fixed bottom plate (3) and two wing plates. One end of each wing plate is fixedly connected to one side edge of the framework (2) by means of its edge, and the other end of the wing plate forms a free end, so that a groove is formed between the fixed bottom plate (3) and the two wing plates. Moreover, the two free ends respectively have correspondingly arranged flanges towards the corresponding inner sides, The bead (4) can be fixed into the groove, The radial cross-section of the bead (4) is trapezoidal. The longer base of the trapezoid faces the opening side of the groove, and the shorter base of the trapezoid abuts against the inner side of the fixed bottom plate (3). After the bead (4) is assembled with the framework (2), a sealing layer clamping groove is formed between the bead (4), the fixed bottom plate (3) and the wing plate, The sealing layer (5) is spread in the open surface, and the free edge of the sealing layer (5) is stuffed into the sealing layer clamping groove, so that the multiple sealing layers (5) are connected into one body to form the trapezoidal bead combined sealing lining structure.

2. The trapezoidal strip combination sealing inner lining structure according to claim 1, characterized in that The wing plate is concavely formed with a notch on the inner side close to the fixed bottom plate (3), and the sealing layer (5) fills the notch in the notch.

3. The trapezoidal bead combination sealing inner lining structure according to claim 1, wherein The framework (2) includes a warp framework (21) and a weft framework (22), After the warp framework (21) and the weft framework (22) are intertwined, a cylindrical shape is formed, and the opening is formed between two adjacent warp frameworks (21) and between two adjacent weft frameworks (22).

4. The trapezoidal strip combined sealing inner lining structure according to claim 2, characterized in that, It further includes an arc-shaped framework (23), The arc-shaped framework (23) is the weft framework (22) at the warp frameworks close to both ends of the framework (2), The diameter of the weft framework (22) gradually decreases at the axial position close to the end of the cylindrical shape, One end of the arc-shaped framework (23) is connected to the weft framework (22) with a larger diameter, and the other end of the arc-shaped framework (23) is connected to the weft framework (22) with a smaller diameter, so that the diameters at both axial ends of the cylindrical shape gradually shrink to form a dome.

5. The trapezoidal bead combination sealing inner lining structure according to claim 1, characterized in that, The fixed bottom plate (3) and the two wing plates of the framework (2) are integrally formed.

6. An underground cavern of a compressed air energy storage power station, characterized in that, It includes a concrete lining layer (1) and the trapezoidal bead combined sealing lining structure according to any one of claims 1-5, The trapezoidal bead combined sealing lining structure is fixedly arranged on the inner wall of the concrete lining layer (1).

7. The underground cavern of the compressed air energy storage power station according to claim 6, wherein, It further includes a fastener (7), After the fastener (7) passes through the framework (2) and the fixed bottom plate (3), it terminates in the sealing layer (5).

8. The underground cavern of the compressed air energy storage power station according to claim 7, characterized in that, The fastener (7) is an anchor bolt; Preferably, a receiving groove is provided on the inner wall of the concrete lining layer (1), The receiving groove is adapted to the shapes of the fixed bottom plate (3) and the wing plate of the framework (2), so that the fixed bottom plate (3) and the wing plate of the framework (2) are embedded in the receiving groove.

9. The construction method of the underground chamber of the compressed air energy storage power station according to any one of claims 6-8, characterized in that, It includes the following steps: Lay out the framework (2) on the inner wall of the underground chamber of the compressed air energy storage power station; The framework (2) is arranged on the inner wall of the underground chamber of the compressed air energy storage power station, and an accommodation space is formed between the fixed bottom plate (3) and the wing plates of the framework (2). Moreover, a hollow surface is formed between the frameworks (2); The sealing layer (5) is spread in the hollow surface, and the free edge of the sealing layer (5) is stuffed into the accommodation space, so that a plurality of the sealing layers (5) are connected into a whole to form the trapezoidal press strip combined sealing inner lining structure; The press strip is combined into the accommodation space, and a sealing layer clamping groove is formed between the press strip (4), the fixed bottom plate (3) and the wing plates. Moreover, the free edge of the sealing layer (5) is stuffed into the sealing layer clamping groove.

10. The construction method of the underground chamber of the compressed air energy storage power station according to claim 9, characterized in that, The underground chamber of the compressed air energy storage power station is the underground chamber of the compressed air energy storage power station described in claim 12. Before the step of arranging the fixed bottom plate (3) on the inner wall of the underground chamber of the compressed air energy storage power station in the construction method of the underground chamber of the compressed air energy storage power station, the following steps are further included: On the inner wall of the concrete lining layer (1), accommodation grooves are dug at positions corresponding to the fixed bottom plate (3) and the wing plates of the framework (2). The accommodation grooves are adapted to the shape of the fixed bottom plate (3), so that the fixed bottom plate (3) and the wing plates of the framework (2) can be embedded in the accommodation grooves; Preferably, the construction method of the underground chamber of the compressed air energy storage power station further includes the following steps: A gas storage test is carried out on the underground chamber of the compressed air energy storage power station to determine the sealing performance of the underground chamber; Real-time monitoring is carried out on possible air leakage points of the underground chamber of the compressed air energy storage power station; Preferably, during the step of carrying out real-time monitoring on possible air leakage points of the underground chamber of the compressed air energy storage power station, the possible air leakage points include one or more of the connection positions between the sealing layer (5) and the fixed bottom plate (3), the connection positions between the fixed bottom plate (3) and the framework (2), the connection positions between the fixed bottom plate (3) and the concrete lining layer (1), and the parts of the sealing layer (5) itself; Preferably, the real-time monitoring on possible air leakage points of the underground chamber specifically includes the following steps: Gas flow monitoring instruments are arranged at possible air leakage points of the underground chamber of the compressed air energy storage power station, and position labels are set for each gas flow monitoring instrument; Alarm thresholds are set for the gas flow monitoring instruments according to the positions where the gas flow monitoring instruments are located; After a gas flow abnormal alarm occurs, the air leakage points of the underground chamber of the compressed air energy storage power station are determined according to the position labels of the gas flow monitoring instruments that give an alarm.

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