CN115875079A - Compressed air energy storage artificial underground gas storage - Google Patents
Compressed air energy storage artificial underground gas storage Download PDFInfo
- Publication number
- CN115875079A CN115875079A CN202211436325.5A CN202211436325A CN115875079A CN 115875079 A CN115875079 A CN 115875079A CN 202211436325 A CN202211436325 A CN 202211436325A CN 115875079 A CN115875079 A CN 115875079A
- Authority
- CN
- China
- Prior art keywords
- compressed air
- air energy
- shaft
- gas storage
- lining
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000003860 storage Methods 0.000 title claims abstract description 58
- 238000004146 energy storage Methods 0.000 title claims abstract description 52
- 239000011435 rock Substances 0.000 claims abstract description 64
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 36
- 239000010959 steel Substances 0.000 claims abstract description 36
- 238000007789 sealing Methods 0.000 claims abstract description 20
- 230000005540 biological transmission Effects 0.000 claims abstract description 7
- 238000004891 communication Methods 0.000 claims abstract description 7
- 239000011378 shotcrete Substances 0.000 claims description 12
- 239000011150 reinforced concrete Substances 0.000 claims description 11
- 238000010276 construction Methods 0.000 claims description 9
- 230000003014 reinforcing effect Effects 0.000 claims description 8
- 230000002787 reinforcement Effects 0.000 claims description 7
- 239000010426 asphalt Substances 0.000 claims description 6
- 229920001971 elastomer Polymers 0.000 claims description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 4
- 239000004567 concrete Substances 0.000 claims description 4
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 3
- 238000009933 burial Methods 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 229920001684 low density polyethylene Polymers 0.000 claims description 3
- 239000004702 low-density polyethylene Substances 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims 1
- 230000002265 prevention Effects 0.000 claims 1
- 239000007789 gas Substances 0.000 description 43
- 238000005516 engineering process Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 10
- 150000003839 salts Chemical class 0.000 description 8
- 238000012986 modification Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 239000002699 waste material Substances 0.000 description 4
- 235000019994 cava Nutrition 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000002803 fossil fuel Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- 241000923606 Schistes Species 0.000 description 1
- 229910052612 amphibole Inorganic materials 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000010459 dolomite Substances 0.000 description 1
- 229910000514 dolomite Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- -1 gneiss Substances 0.000 description 1
- 239000010438 granite Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000004579 marble Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- PVYDNJADTSAQQU-UHFFFAOYSA-N prop-1-ene;hydrochloride Chemical compound Cl.CC=C PVYDNJADTSAQQU-UHFFFAOYSA-N 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 239000011044 quartzite Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000010454 slate Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
Landscapes
- Lining And Supports For Tunnels (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The invention discloses a compressed air energy storage artificial underground gas storage, which comprises: the sealing chamber comprises a main structure and an auxiliary structure, wherein the auxiliary structure comprises an inclined shaft, a vertical shaft and a transverse channel; 1 permanent shaft and 1 temporary inclined shaft or 1 permanent inclined shaft and 1 temporary shaft can be arranged; if only 1 permanent inclined shaft or vertical shaft is arranged, a gas transmission channel is arranged in the permanent inclined shaft or vertical shaft and is connected with the sealed chamber through a communication channel; checking the size of the seal chamber according to the volume of the gas storage; the sealing chamber of the compressed air energy storage artificial underground gas storage adopts an annular or vertically and horizontally communicated tunnel type structure; the pressure bearing of the seal chamber depends on surrounding rocks, and the seal chamber sequentially comprises a first primary support, a first waterproof layer, a first secondary lining, a filling layer and a steel plate lining from outside to inside; the filling layer is used for preventing a gap from being formed between the steel plate lining and the first secondary lining. The invention can greatly reduce the dependence of compressed air energy storage on geological conditions.
Description
Technical Field
The invention belongs to the technical field of new energy and energy storage, and particularly relates to a compressed air energy storage artificial underground gas storage.
Background
Compressed air energy storage has the advantages of large scale, long service life, low cost and the like, and is considered as a large-scale energy storage technology with the most development potential. The compressed air energy storage technology can realize large-scale access of renewable energy power generation, and effectively solves the problems of wind and light abandonment; the peak clipping and valley filling of the power system are realized, and the efficiency, safety and economy of the power system are improved; the method is a support technology of an intelligent power grid and a distributed energy system, and can effectively promote popularization of an intelligent micro-grid system and strategic implementation of energy Internet.
Compressed air energy storage technologies can be divided into two broad categories: conventional compressed air energy storage and advanced compressed air energy storage. The traditional compressed air energy storage system is an energy storage system developed based on gas turbine technology. In the electricity utilization valley, air is compressed and stored in the air storage chamber, so that electric energy is converted into internal energy of the air to be stored; during the peak of electricity utilization, high-pressure air is released from the air storage chamber, enters the combustion chamber to be combusted together with fuel, and then drives the turbine to generate electricity. Commercial applications are currently available in germany (Huntorf 290 MW) and in the united states (McIntosh 110 MW), and related studies are also available in japan, israel, finland and south africa. However, the traditional compressed air energy storage system has three main technical bottlenecks, namely, the traditional compressed air energy storage system depends on fossil fuels such as natural gas and the like to provide a heat source, increases carbon emission and is not beneficial to environmental protection; secondly, large air storage caves such as salt caves, abandoned mine caves and the like need to be built under special geographic conditions; and thirdly, the system efficiency is lower, and the efficiencies of the Huntorf power station and the McIntosh power station are respectively 42 percent and 54 percent, which needs to be further improved. The novel compressed air energy storage does not need fossil fuel, reduces the dependence of geographical conditions, and the efficiency of the system is relatively high.
In the aspect of gas storage, the existing gas storage device for compressed air energy storage projects mainly comprises a natural salt cavern, a waste ore cavern and a steel storage tank. The natural salt cavern has good sealing performance and relatively low manufacturing cost, but the site selection is limited; although the excavation work amount of the abandoned mine hole is small, the feasible site selection is limited and the sealing technology difficulty is large; the steel storage tank has mature technology, flexible site selection and low technical difficulty, but has high construction cost, is influenced by the steel market environment and has large price fluctuation. Therefore, the method reduces the geographical condition limitation, selects an economic, reasonable and safe air storage device, and has important significance for popularization and application of the compressed air energy storage system. Compared with natural salt caverns and abandoned mine caverns, the hard rock layers are widely distributed, and the artificial underground gas storage construction is carried out on the hard rock layers, so that the dependence on geographical conditions can be greatly reduced. However, in the operation process of the compressed air energy storage power station, the air storage pressure changes periodically along with the charging and discharging of the system, so that the layout and the structure of the artificial underground air storage become important contents of the compressed air energy storage underground engineering, and the method has important significance for the large-scale application of the compressed air energy storage technology.
At present, the patent adopted by the compressed air energy storage underground gas storage device mainly aims at gas storage tanks, salt caverns, waste mine caverns and the like. For example, CN113738446a discloses a method for rebuilding a gas storage reservoir in salt cavern, but is completely not suitable for building an artificial gas storage reservoir in hard rock stratum. Patent CN114876572a discloses an underground gas storage and a site selection and reconstruction method for reconstructing the underground gas storage by using abandoned mine holes, but is not completely applicable to artificial underground gas storage on hard rock layers. CN 113428556B discloses an underground gas storage and a construction method thereof, which only describes the structure of a gas storage cavity in an underground rock mass, but does not describe the layout of the underground gas storage and lacks of waterproof and anticorrosion considerations.
The existing underground gas storage technology is mainly characterized in that salt caverns and waste ore caverns are transformed, the application range of compressed air energy storage is greatly limited, and the layout, the structure and the sealing method are not completely suitable for hard rock layers.
Disclosure of Invention
The invention provides a compressed air energy storage artificial underground gas storage, which aims to solve the problems that the existing compressed air energy storage underground gas storage technology is mainly used for constructing underground gas storage by utilizing salt caverns and waste mine caverns, so that the compressed air energy storage construction is limited by geological conditions, and the layout and structure research of the construction of hard rock layer artificial gas storage is lacked.
The invention provides a compressed air energy storage artificial underground gas storage, which is built by utilizing a hard rock stratum and comprises the following steps:
a seal chamber body structure and an auxiliary structure, wherein the auxiliary structure comprises one or more of a slant well, a vertical well and a cross-channel; the inclined shaft and the vertical shaft can be selected alternatively, and 1 permanent vertical shaft and 1 temporary inclined shaft or 1 permanent inclined shaft and 1 temporary vertical shaft can also be arranged; if only 1 permanent inclined shaft or 1 permanent shaft is arranged, a gas transmission channel is arranged in the permanent inclined shaft or the permanent shaft, and the permanent inclined shaft or the permanent shaft is connected with a sealing chamber through a communication channel to check the size of the sealing chamber according to the volume of the gas storage warehouse; the sealing chamber of the compressed air energy storage artificial underground gas storage adopts an annular or vertically and horizontally communicated tunnel type structure; the pressure bearing of the seal chamber depends on surrounding rocks (6), and the seal chamber sequentially comprises a first primary support (5), a first waterproof layer (4), a first secondary lining (3), a filling layer (2) and a steel plate lining (1) from outside to inside; the filling layer (2) is used for preventing a gap from being formed between the steel plate lining (1) and the first secondary lining (3) and influencing the stability and the pressure bearing capacity.
Preferably, the burial depth of the sealing chamber is set to be 100-200m.
Preferably, for the I, II and III type surrounding rock sections, the first primary support (5) adopts an anchor rod to reinforce a surrounding rock loose area, and is provided with net-sprayed concrete; for IV-type and V-type surrounding rocks and fault fracture zones, the first primary support (5) adopts anchor rods to reinforce the loose region of the surrounding rocks, and simultaneously sets a steel frame and net-sprayed concrete for reinforcement.
Preferably, according to geological conditions, C40 reinforced concrete with the thickness of 0.5m can be adopted for the first secondary lining (3) of the I, II and III types of surrounding rocks, and reinforced concrete with higher thickness and strength is required for the first secondary lining (3) of the IV and V types of surrounding rocks.
Preferably, the steel plate lining (1) adopts a flexible steel inner scale which can be deformed along with lining and surrounding rock outward expansion without yielding, and the thickness of the steel plate lining (1) is 15-20mm according to the strength of the first surrounding rock (6); if the steel plate lining (1) is adopted for bearing pressure, the thickness is increased to 30mm.
Preferably, the filling layer (2) is internally provided with an anti-seepage and leak-stopping material by using propylene hydrochloric acid and/or polyurethane, and is provided with a waterproof structure, the waterproof structure comprises a first waterproof layer (4), the first waterproof layer (4) adopts a mode of spraying a waterproof layer by using an LDPE waterproof plate and coupling quick-setting rubber asphalt, and the quick-setting rubber asphalt is selectively sprayed to the inner side of the steel plate lining (1).
Preferably, the inclined shaft is sequentially provided with a second primary support (4A), a first lining (2A) and a second waterproof layer (1A) from outside to inside; for II and III class surrounding rocks, the second primary support (4A) is reinforced by C25 sprayed concrete and a reinforcing mesh and is fixed by an anchor rod (3A); the first lining (2A) is made of C30 or C35 reinforced concrete; the second waterproof layer (1A) adopts an EVA waterproof board with the thickness of 1.5 mm; and for IV and V surrounding rocks, adding steel frame structure reinforcement in the second primary support (4A).
Preferably, the vertical shaft is sequentially provided with a third primary support (3B), a second secondary lining (1B) and a third waterproof layer (2B) from outside to inside, and the vertical shaft bears pressure by virtue of a second surrounding rock (4B); for II and III type surrounding rocks, the third primary support (3B) is reinforced by C25 sprayed concrete and a reinforcing mesh and fixed by a system anchor rod; or C40 reinforced concrete with the thickness of 0.3 m; the waterproof layer is an EVA waterproof board with the thickness of 1.5 mm; for IV-class surrounding rocks, the length of a system anchor rod is lengthened; and for the V-type surrounding rock, steel section supports are added to the third primary support (3B) for reinforcement.
Preferably, the vertical shaft comprises a transverse passage, the T-shaped communication passage (3C) is kept stable through a concrete plug (4C) and is communicated with the sealing chambers and the vertical shaft, the sealing chambers on the two sides are balanced in pressure to achieve a stable state, and the ports of the sealing chambers on the two sides are of a hemispherical structure.
A second aspect of the invention provides a compressed air energy storage system comprising the compressed air energy storage artificial underground reservoir of the first aspect.
A third aspect of the invention provides a compressed air energy storage method implemented by the compressed air energy storage system of the second aspect.
The artificial underground gas storage of compressed air energy storage provided by the invention has the following beneficial technical effects:
the integral layout of the hard rock layer artificial gas storage, the structure of the main body structure and the auxiliary structure and the selection of key materials are provided, the dependence of compressed air energy storage on geological conditions can be greatly reduced, and the popularization of large-scale compressed air energy storage is facilitated.
Drawings
Fig. 1 is a schematic cross-sectional view of a containment chamber according to a preferred embodiment of the present invention;
FIG. 2 is a schematic diagram illustrating a slant well configuration according to a preferred embodiment of the present invention;
fig. 3 is a schematic view showing a cross-sectional structure of a shaft according to a preferred embodiment of the present invention;
fig. 4 is a schematic view showing a structure of a shaft cross passage according to a preferred embodiment of the present invention.
Detailed Description
The following detailed description of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
Example one
An artificial underground gas storage reservoir for compressed air energy storage, constructed by using hard rock strata, comprising:
the sealing chamber comprises a main structure of the sealing chamber and an auxiliary structure, wherein the auxiliary structure comprises a slant well, a vertical well and a transverse passage. The size of the sealing chamber is determined according to the volume of the gas storage, the gas storage pressure of the compressed air energy storage gas storage needs to meet the high pressure of 10MPa, and long-time and periodic gas storage pressure change can be met.
The burial depth of the seal chamber can be set to be 100-200m according to geological conditions, and a ring-shaped or cross-communicated tunnel type structure can be adopted. As shown in fig. 1, the confined chamber is mainly supported by surrounding rocks 6. In order to ensure the stability, the sealing performance and the waterproof performance of the sealing chamber, the sealing chamber sequentially comprises a first primary support 5, a first waterproof layer 4, a first secondary lining 3, a filling layer 2 and a steel plate lining 1 from outside to inside. For the I, II and III type surrounding rock sections, the first primary support 5 can adopt an anchor rod to reinforce a surrounding rock loose area and is provided with net-sprayed concrete; for four types and five types of surrounding rocks and fault fracture zones, the first primary support 5 can be reinforced by steel frames and net-sprayed concrete while reinforcing the loose region of the surrounding rocks by using anchor rods. For class I, II, III wall rock, the first secondary lining 3 is preferably C40 reinforced concrete with a thickness of about 0.5 m. The steel plate lining 1 can adopt a flexible steel inner scale which can be deformed along with lining and surrounding rock outer expansion without yielding, and the thickness of the steel plate lining 1 can be generally selected from 15-20mm according to the strength of the first surrounding rock 6; if the steel plate lining 1 is adopted for bearing pressure, the thickness can be increased to 30mm. In order to avoid the influence of a gap between the steel plate lining 1 and the first secondary lining 3 on the stability and the pressure-bearing capacity, the filling layer 2 is arranged, and materials with seepage-proofing and leakage-stopping functions such as propylene, hydrochloric acid and polyurethane are recommended to be used. In order to prevent the influence of underground water development on the structural stability of the sealed chamber, a waterproof structure with good durability and chemical stability can be arranged. In order to prevent external water from permeating into the sealing chamber along the concrete crack, the first waterproof layer 4 recommends the mode of spraying the waterproof layer by adopting LDPE waterproof board coupling rapid hardening rubber asphalt. In order to prevent the waterproof layer from being damaged in the welding process of the steel plate lining 1, the quick-setting rubber asphalt can be selectively sprayed to the inner side of the steel plate lining 1.
According to the geological structure, the permanent inclined shaft and the vertical shaft of the auxiliary structure of the gas storage can be selected alternatively, and 1 permanent vertical shaft and 1 temporary inclined shaft or 1 permanent inclined shaft and 1 vertical shaft can also be arranged. If only 1 permanent inclined shaft or 1 vertical permanent shaft is arranged, the inclined shaft and the vertical shaft need to be provided with gas transmission channels and are connected with the sealed chamber through the communication channel.
And for a temporary inclined shaft, the function of a gas transmission overhaul channel is not born, the temporary inclined shaft is not used after engineering is implemented, a wellhead needs to be sealed, and a safety inspection facility is arranged. For a temporary inclined shaft, the inclined shaft is used for meeting the requirements of transportation lifting, equipment hole entering, ventilation, drainage, safety clearance and the like, and the gradient can be set to be 20-23 degrees. As shown in fig. 2, the second preliminary bracing 4A, the first lining 2A, and the second waterproof layer 1A are provided in this order from the outside to the inside. For the frequently selected II and III type surrounding rocks, the primary support can be reinforced by C25 sprayed concrete and a reinforcing mesh and is fixed by an anchor rod 3A; the first lining 2A preferably adopts C30 or C35 reinforced concrete; the second waterproof layer 1A preferably adopts an EVA waterproof board with the thickness of 1.5 mm. For IV and V surrounding rocks with poor geological conditions, the second primary support 4A can be used for reinforcing structures such as steel frames.
The size selection and the internal arrangement of the vertical shaft are comprehensively considered according to factors such as construction organization requirements, lifting capacity, mechanical equipment configuration, ventilation, safety spacing and the like. For the vertical shaft bearing the functions of the gas transmission overhaul channel, the vertical shaft is mainly used as a personnel access channel in the construction period during the construction period; during operation, the shaft is mainly used as a gas transmission channel and an access channel for maintenance personnel. Therefore, the vertical shaft should be provided with a gas storage channel, an elevator and necessary drainage pipelines. As shown in fig. 3, the third primary support 3B, the second secondary lining 1B and the third waterproof layer 2B are arranged in this order from outside to inside. The pressure bearing of the vertical shaft mainly depends on the second surrounding rock 4B.
For the frequently selected II and III type surrounding rocks, the third primary support 3B can be reinforced by C25 sprayed concrete and a reinforcing mesh and fixed by a system anchor rod; c40 reinforced concrete with the thickness of 0.3m is recommended; and the waterproof layer is recommended to be an EVA waterproof board with the thickness of 1.5 mm. For IV-class surrounding rocks, the length of a system anchor rod can be lengthened; for the V-type surrounding rock, section steel support reinforcement can be added in the third primary support 3B. As shown in fig. 4, the T-shaped communication passage 3C is maintained stable by the concrete plug 4C, and communicates with the seal chamber and the shaft, and is stabilized by pressure balance of the seal chambers at both sides, and the port of the seal chamber at both sides has a hemispherical structure to reduce stress concentration.
As a preferred embodiment, the sealed underground chamber of the gas storage reservoir can adopt an annular or vertically and horizontally communicated tunnel type structure, the gas storage channel can be a permanent inclined shaft or a vertical shaft, and 1 permanent vertical shaft and 1 temporary inclined shaft or 1 permanent inclined shaft and 1 temporary vertical shaft can also be arranged.
As a preferred embodiment, the hard rock stratum has the advantages of good rock quality, high strength and large deformation modulus, is used as a candidate stratum of the artificial underground gas storage of the preferred embodiment of the invention, and the rock types suitable for constructing the compressed air energy storage underground gas storage mainly comprise magma rocks such as granite, amphibole, basalt and the like; sedimentary rocks such as siliceous and iron cemented conglomerate, sandstone, limestone and dolomite; metamorphic rocks such as gneiss, quartzite, marble, slate, schist and the like, and I, II or class III surrounding rocks are recommended to be mainly adopted, so that class IV and class V surrounding rocks are avoided as much as possible, and a fracture zone is avoided.
The embodiment also provides a compressed air energy storage system, and the compressed air energy storage system is used for storing energy in an artificial underground gas storage.
The embodiment also provides a compressed air energy storage method which is implemented by a compressed air energy storage system.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including the preferred embodiment and all changes and modifications that fall within the scope of the invention. It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (9)
1. The utility model provides a compressed air energy storage artificial underground gas storage, utilizes hard rock stratum construction, its characterized in that includes:
a seal chamber body structure and an auxiliary structure, wherein the auxiliary structure comprises one or more of a slant well, a vertical well and a cross-channel; the inclined shaft and the vertical shaft can be selected alternatively, and 1 permanent vertical shaft and 1 temporary inclined shaft or 1 permanent inclined shaft and 1 temporary vertical shaft can also be arranged; if only 1 permanent inclined shaft or 1 permanent vertical shaft is arranged, a gas transmission channel is arranged in the permanent inclined shaft or the permanent vertical shaft and is connected with the sealing chamber through a communication channel; checking the size of the seal chamber according to the volume of the gas storage; the seal chamber of the compressed air energy storage artificial underground gas storage adopts an annular or vertically and horizontally communicated tunnel type structure; the pressure bearing of the seal chamber depends on surrounding rocks (6), and the seal chamber sequentially comprises a first primary support (5), a first waterproof layer (4), a first secondary lining (3), a filling layer (2) and a steel plate lining (1) from outside to inside; the filling layer (2) is used for preventing a gap from being formed between the steel plate lining (1) and the first secondary lining (3) and influencing the stability and the pressure bearing capacity.
2. The artificial underground reservoir of compressed air energy storage as claimed in claim 1, wherein the seal chamber is set to a burial depth of 100-200m.
3. The compressed air energy-storage artificial underground gas storage according to claim 1, wherein for the I, II and III type surrounding rock sections, the first primary support (5) adopts anchor rods to reinforce the loose region of the surrounding rock and is provided with net-sprayed concrete; for IV-type and V-type surrounding rocks and fault fracture zones, the first primary support (5) adopts anchor rods to reinforce the loose region of the surrounding rocks, and simultaneously sets a steel frame and net-sprayed concrete for reinforcement.
4. A compressed air energy-storing artificial underground gas storage according to claim 1, characterized in that, depending on geological conditions, for class I, II, III surrounding rock sections, the first secondary lining (3) is made of C40 reinforced concrete with a thickness of 0.5m, and for class IV and V surrounding rocks, the first secondary lining (3) is made of reinforced concrete with higher thickness and strength.
5. The compressed air energy storage artificial underground gas storage according to claim 1, wherein the steel plate lining (1) adopts a flexible steel inner scale which can be expanded and deformed without yielding along with the lining and the surrounding rock, and the thickness of the steel plate lining (1) is 15-20mm according to the strength of the first surrounding rock (6); if the steel plate lining (1) is adopted for bearing pressure, the thickness is increased to 30mm.
6. The artificial underground gas storage according to claim 1, wherein the filling layer (2) is made of acrylic hydrochloric acid and/or polyurethane, and is provided with a waterproof structure, the waterproof structure comprises a first waterproof layer (4), the first waterproof layer (4) is formed by spraying a waterproof layer in a manner of coupling LDPE waterproof boards with quick-setting rubber asphalt, and the quick-setting rubber asphalt is selectively sprayed on the inner side of the steel plate lining (1).
7. The compressed air energy-storage artificial underground gas storage according to claim 1, wherein the inclined shaft comprises a second primary support (4A), a first lining (2A) and a second waterproof layer (1A) from outside to inside; for II and III class surrounding rocks, the second primary support (4A) is reinforced by C25 sprayed concrete and a reinforcing mesh and is fixed by an anchor rod (3A); the first lining (2A) is made of C30 or C35 reinforced concrete; the second waterproof layer (1A) adopts an EVA waterproof board with the thickness of 1.5 mm; and for IV and V surrounding rocks, adding steel frame structure reinforcement in the second primary support (4A).
8. The compressed air energy-storage artificial underground gas storage according to claim 1, wherein the shaft is provided with a third primary support (3B), a second secondary lining (1B) and a third water prevention layer (2B) from outside to inside in sequence, and the shaft bears pressure by virtue of a second surrounding rock (4B); for II and III types of surrounding rocks, the third primary support (3B) is reinforced by C25 sprayed concrete and a reinforcing mesh and fixed by a system anchor rod; or C40 reinforced concrete with a thickness of 0.3 m; the waterproof layer is an EVA waterproof board with the thickness of 1.5 mm; for IV-class surrounding rock, the length of a system anchor rod is lengthened; and for the V-type surrounding rock, steel section supports are added to the third primary support (3B) for reinforcement.
9. The artificial underground reservoir of compressed air energy storage as claimed in claim 1, wherein the shaft comprises a cross passage, the T-shaped communication passage (3C) is stabilized by a concrete plug (4C) and communicates with the seal chamber and the shaft to stabilize them by pressure balancing of the seal chambers at both sides, and the ports of the seal chambers at both sides are of hemispherical structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211436325.5A CN115875079A (en) | 2022-11-16 | 2022-11-16 | Compressed air energy storage artificial underground gas storage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211436325.5A CN115875079A (en) | 2022-11-16 | 2022-11-16 | Compressed air energy storage artificial underground gas storage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115875079A true CN115875079A (en) | 2023-03-31 |
Family
ID=85760055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211436325.5A Pending CN115875079A (en) | 2022-11-16 | 2022-11-16 | Compressed air energy storage artificial underground gas storage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115875079A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116398181A (en) * | 2023-06-08 | 2023-07-07 | 中国电建集团华东勘测设计研究院有限公司 | Wave-shaped lining structure suitable for high-pressure underground gas storage hole |
| CN117108358A (en) * | 2023-08-25 | 2023-11-24 | 中国矿业大学 | Underground gas storage cavern combined type drainage and gas leakage monitoring lining system |
-
2022
- 2022-11-16 CN CN202211436325.5A patent/CN115875079A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116398181A (en) * | 2023-06-08 | 2023-07-07 | 中国电建集团华东勘测设计研究院有限公司 | Wave-shaped lining structure suitable for high-pressure underground gas storage hole |
| CN116398181B (en) * | 2023-06-08 | 2023-11-28 | 中国电建集团华东勘测设计研究院有限公司 | Wave-shaped lining structure suitable for high-pressure underground gas storage hole |
| CN117108358A (en) * | 2023-08-25 | 2023-11-24 | 中国矿业大学 | Underground gas storage cavern combined type drainage and gas leakage monitoring lining system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN115875079A (en) | Compressed air energy storage artificial underground gas storage | |
| AU2017408795B2 (en) | Method of utilizing downhole roadway in coal mine for compressed air energy storage | |
| KR101550737B1 (en) | Method for constructing reservoir in underground for the storage of highly pressured fluid | |
| CN104165056A (en) | Construction method for excavating water-rich shallow underground excavation tunnel | |
| CN116988838A (en) | Annular tunnel type arrangement structure of ultrahigh-pressure underground gas storage chamber and construction method | |
| CN206859259U (en) | A kind of pipe gallery | |
| CN219529089U (en) | Energy storage device for compressed air by using gold mine roadway | |
| US11821316B1 (en) | System and construction method of single-layer lining tunnel structure based on mine-tunnelling method | |
| CN117090600A (en) | Underground ultrahigh-pressure gas storage chamber lining and sealing structure and construction method | |
| CN116771382A (en) | High-pressure underground gas storage hole composite lining structure | |
| CN219263925U (en) | Underground high-pressure gas storage system of footrill type compressed air energy storage power station | |
| CN219119320U (en) | Spatial structure based on asphalt concrete and corrugated steel combined support | |
| CN115680771A (en) | Underground hydrogen storage device, system and method | |
| CN116428003A (en) | Compressed air energy storage method for distributed abandoned mine | |
| CN202706019U (en) | Foundation steel column of solar photovoltaic power station | |
| CN212376697U (en) | Underground oil gas tunnel storage tank structure | |
| CN212272246U (en) | Can realize tunnel assembled supporting construction of dynamic reinforcement | |
| CN107152034A (en) | A kind of pipe gallery and its construction method | |
| CN212983870U (en) | Circular working pit supporting member | |
| CN113217100A (en) | Method for sealing and storing carbon dioxide by using waste mine | |
| CN112145179A (en) | Blue mining method | |
| CN220319571U (en) | High-pressure underground gas storage hole composite lining structure | |
| CN118669699B (en) | Underground hydrogen storage and construction method thereof | |
| CN214741356U (en) | FRP interlayer arch-steel pipe concrete column underground excavation main body structure of water-rich sand layer | |
| CN117418900A (en) | Compressed air energy storage bearing sealing structure of shallow coal mine soft rock roadway and construction method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |