CN115218112A - Vertical shaft of gravity compressed air energy storage system for unconsolidated formation and energy storage system - Google Patents
Vertical shaft of gravity compressed air energy storage system for unconsolidated formation and energy storage system Download PDFInfo
- Publication number
- CN115218112A CN115218112A CN202210795079.6A CN202210795079A CN115218112A CN 115218112 A CN115218112 A CN 115218112A CN 202210795079 A CN202210795079 A CN 202210795079A CN 115218112 A CN115218112 A CN 115218112A
- Authority
- CN
- China
- Prior art keywords
- shaft
- vertical shaft
- gravity
- energy storage
- freezing
- 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
- 230000005484 gravity Effects 0.000 title claims abstract description 127
- 238000004146 energy storage Methods 0.000 title claims abstract description 56
- 230000015572 biosynthetic process Effects 0.000 title claims abstract description 15
- 230000008014 freezing Effects 0.000 claims abstract description 66
- 238000007710 freezing Methods 0.000 claims abstract description 66
- 239000002689 soil Substances 0.000 claims abstract description 31
- 238000010276 construction Methods 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims description 21
- 238000007789 sealing Methods 0.000 claims description 15
- 230000003139 buffering effect Effects 0.000 claims description 13
- 238000005755 formation reaction Methods 0.000 claims description 12
- 239000012528 membrane Substances 0.000 claims description 10
- 230000002093 peripheral effect Effects 0.000 claims description 10
- 238000011161 development Methods 0.000 claims description 4
- 238000009826 distribution Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 6
- 238000004062 sedimentation Methods 0.000 abstract description 3
- 238000003825 pressing Methods 0.000 description 12
- 238000003860 storage Methods 0.000 description 12
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 10
- 229910000831 Steel Inorganic materials 0.000 description 9
- 238000009412 basement excavation Methods 0.000 description 9
- 239000010959 steel Substances 0.000 description 9
- 230000008569 process Effects 0.000 description 8
- 230000006835 compression Effects 0.000 description 7
- 238000007906 compression Methods 0.000 description 7
- 230000002787 reinforcement Effects 0.000 description 6
- 238000006073 displacement reaction Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 229910052757 nitrogen Inorganic materials 0.000 description 5
- 238000001514 detection method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000007596 consolidation process Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000000670 limiting effect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005381 potential energy Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 235000011089 carbon dioxide Nutrition 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
- F17C1/007—Underground or underwater storage
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17B—GAS-HOLDERS OF VARIABLE CAPACITY
- F17B1/00—Gas-holders of variable capacity
- F17B1/02—Details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17B—GAS-HOLDERS OF VARIABLE CAPACITY
- F17B1/00—Gas-holders of variable capacity
- F17B1/02—Details
- F17B1/10—Guiding moving parts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
- F17C1/02—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge involving reinforcing arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/002—Details of vessels or of the filling or discharging of vessels for vessels under pressure
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J15/00—Systems for storing electric energy
- H02J15/006—Systems for storing electric energy in the form of pneumatic energy, e.g. compressed air energy storage [CAES]
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2201/00—Vessel construction, in particular geometry, arrangement or size
- F17C2201/01—Shape
- F17C2201/0176—Shape variable
- F17C2201/018—Shape variable with bladders
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2201/00—Vessel construction, in particular geometry, arrangement or size
- F17C2201/03—Orientation
- F17C2201/032—Orientation with substantially vertical main axis
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2203/00—Vessel construction, in particular walls or details thereof
- F17C2203/01—Reinforcing or suspension means
- F17C2203/011—Reinforcing means
- F17C2203/012—Reinforcing means on or in the wall, e.g. ribs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2221/00—Handled fluid, in particular type of fluid
- F17C2221/03—Mixtures
- F17C2221/031—Air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
- F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
- F17C2223/0107—Single phase
- F17C2223/0123—Single phase gaseous, e.g. CNG, GNC
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2270/00—Applications
- F17C2270/01—Applications for fluid transport or storage
- F17C2270/0142—Applications for fluid transport or storage placed underground
- F17C2270/0144—Type of cavity
- F17C2270/0149—Type of cavity by digging cavities
-
- 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
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The invention provides a vertical shaft of a gravity compressed air energy storage system for a unconsolidated formation and the energy storage system, which can realize the construction of a vertical shaft structure under a complex unconsolidated water-rich formation, and the structural form of the vertical shaft can not only enhance the bearing capacity of the vertical shaft to an upper load, but also achieve the purpose of controlling the sedimentation deformation of the vertical shaft after the failure of frozen soil, thereby supporting the bearing of all loads during the operation of the gravity compressed air energy storage system; and the reserved freezing holes can be grouted and consolidated, so that the settlement deformation of the vertical shaft and the damage caused by seepage and piping can be further reduced, and the safe and stable operation of the gravity compressed air energy storage vertical shaft structure is ensured.
Description
Technical Field
The invention relates to the technical field of pressure containers and air energy storage, in particular to a vertical shaft of a gravity compressed air energy storage system for a unconsolidated formation and an energy storage system.
Background
The gravity compressed air energy storage system stores redundant electric energy through compressed air, and the gravity pressing block has the characteristics of large volume, large weight and the like. When energy is stored, the compressed air energy storage system consumes electric energy to compress air and store the air in the air storage chamber, the top plate of the air storage chamber is lifted, and the lifting force is pressed into a block; when energy is released, high-pressure air is released from the air storage chamber, and the gravity pressing block descends along with the top plate of the air storage chamber. The huge load of upper portion can transmit to the ground, therefore this engineering place has higher requirement to shaft structure and ground bearing capacity. How to design a reasonable vertical shaft structure and adopt an effective foundation treatment method to meet the requirement of safe operation of a gravity compressed air energy storage system is a problem to be solved at present.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art.
Therefore, the invention aims to provide a vertical shaft of a gravity compressed air energy storage system for a unconsolidated stratum and the energy storage system, which can realize the construction of a vertical shaft structure under a complex unconsolidated water-rich stratum, a plurality of ring beams arranged on the vertical shaft can enhance the bearing capacity of the vertical shaft to upper load, and concrete plugs arranged at the bottom and the outer wall of the vertical shaft in a semi-surrounding way can achieve the purpose of controlling the sedimentation deformation of the vertical shaft and prevent the vertical shaft lining from displacing in the vertical direction and the horizontal direction after a frozen soil layer fails, thereby supporting and bearing all loads when the gravity compressed air energy storage system operates; and the reserved freezing holes are reused for grouting consolidation, so that the settlement deformation of the vertical shaft, the damage caused by seepage and piping can be further reduced, and the safe and stable operation of the gravity compressed air energy storage vertical shaft structure is ensured.
In order to achieve the purpose, the invention provides a vertical shaft of a gravity compressed air energy storage system for a unconsolidated formation, wherein the vertical shaft is of a hollow structure with a certain wall thickness, and the top of the vertical shaft is opened and movably spliced with a gravity assembly in the gravity compressed air energy storage system; the inner wall of the vertical shaft is provided with a vertical shaft lining, and the outer wall of the vertical shaft is provided with an anti-settling component;
the anti-settling assembly comprises a plurality of ring beams which are sequentially arranged at intervals on the outer wall of the vertical shaft in the vertical direction.
In some embodiments, the anti-settling assembly comprises a concrete plug; the concrete plug is arranged on the bottom and the outer wall of the vertical shaft in a semi-surrounding mode.
In some embodiments, an embodiment of the present invention provides a method for building a shaft in any one of the above embodiments, including:
planning the shape, size and depth of a vertical shaft on the surface of a soil layer;
at least one group of annular freezing devices with a plurality of freezing devices Kong Weicheng are arranged on the periphery of the planned vertical shaft, and frozen soil layer construction is carried out; the minimum horizontal distance between the freezing holes and the outer side of the vertical shaft is the minimum horizontal distance of the outer side of the vertical shaft for the frozen soil to be developed;
building a vertical shaft lining and anti-settlement assembly after the earthwork of the vertical shaft is excavated; and grouting and solidifying through the freezing holes.
In some embodiments, a circumferential center of the freezing device coincides with a center of gravity of the shaft; the aperture of the freezing hole is 16-20mm; and each set of said freezing means comprises 8-12 freezing holes; the method for calculating the layout radius of the freezing device comprises the following steps:
R＝0.1T；
wherein R is the distribution radius, and the coefficient is 0.1, namely the development speed of the frozen soil is 0.1m/d; t is the freezing time d.
In some embodiments, the horizontal distance between freezing holes in horizontally adjacent said freezing devices is equal to the minimum horizontal distance of said freezing holes from the outside of said shaft.
In some embodiments, the invention provides a gravity compressed air energy storage system for a unconsolidated formation, including the shaft of any of the above embodiments, comprising the gravity assembly; wherein the gravity subassembly outer wall with it is gapped between the inner wall of shaft lining, be provided with the seal membrane in the clearance, the seal membrane with the gravity subassembly outer wall with sealing connection between the inner wall of shaft lining, so that the seal membrane the shaft is located the space of seal membrane below enclose into the gas receiver between the gravity subassembly.
In some embodiments, the gravity assembly comprises a gravity block set and a pressure bearing assembly; the gravity block group is arranged at the top of the pressure bearing assembly; the bottom of the pressure bearing assembly extends into the shaft, and the outer wall of the pressure bearing assembly is connected with the sealing film; the top of the bearing assembly is located on the ground at the top of the shaft.
In some embodiments, the bearing assembly comprises a bearing cartridge, a bearing base, and a cushioning assembly; the bottom of the pressure bearing cylinder extends into the shaft, and the top of the pressure bearing cylinder is provided with a pressure bearing base; the gravity block group is positioned above the pressure-bearing base so that the pressure-bearing cylinder is supported on the ground at the top of the vertical shaft through the pressure-bearing base when moving downwards to the lowest limit position; the buffer component is distributed on the peripheral side of the vertical shaft and is positioned on the ground outside the top end of the vertical shaft, and the top of the buffer component is connected with the pressure-bearing base.
In some embodiments, the bearing assembly includes a locking platform; the locking platform is arranged on the peripheral side of the shaft and on the ground outside the top end of the shaft, and the locking platform is connected with the buffer component and located on the outer side of the buffer component and used for fixing the buffer component.
In some embodiments, the energy storage system includes a guide device including a guide slot and a roller; the guide grooves are distributed on the peripheral side of the gravity component and are arranged on the inner wall of the vertical shaft or the outer part of the vertical shaft; the roller is matched with the guide groove and connected with the groove bottom of the guide groove, so that the roller moves up and down along the groove bottom of the guide groove when the gravity assembly moves up and down.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural diagram of a shaft according to an embodiment of the present invention;
fig. 2 is a flow chart of a method for constructing a vertical shaft of a gravity compressed air energy storage system for a unconsolidated formation according to an embodiment of the present invention;
FIG. 3 is a schematic view of the arrangement of freezing holes according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a gravity compressed air energy storage system for unconsolidated formations in accordance with an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a guide device according to an embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a buffering assembly according to an embodiment of the present invention;
in the figure, 1, gravity briquetting; 2. a tower structure; 3. a guide device; 4. a pressure-bearing base; 5. locking the platform; 51. an elastic pad; 6. a buffer assembly; 61. jacking; 62. a bottom support; 63. a pressure spring; 64. angle steel; 65. an upper central link; 66. a lower central link; 67. an upper annular guard ring; 68. a lower annular guard ring; 7. a soil layer; 8. sealing the film; 9. a ring beam; 10. a pressure-bearing cylinder; 11. an air storage chamber; 12. a shaft; 13. building a vertical shaft lining; 14. freezing the holes; 15. and (5) concrete plugs.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention and are not to be construed as limiting the present invention. On the contrary, the embodiments of the invention include all changes, modifications and equivalents coming within the spirit and terms of the claims appended hereto.
In order to achieve the above purpose, the embodiment of the present invention provides a vertical shaft 12 of a gravity compressed air energy storage system for a unconsolidated formation, wherein the vertical shaft 12 has a hollow structure with a certain wall thickness, and the top of the vertical shaft 12 is open and movably inserted into a gravity assembly in the gravity compressed air energy storage system; the inner wall of the shaft 12 is provided with a shaft lining 13, and the outer wall of the shaft lining is provided with an anti-settling component; the anti-settling assembly comprises a plurality of ring beams 9 spaced in series around the outer wall of the shaft 12 in the vertical direction.
It will be appreciated that the shaft 12 is conventionally a hollow cylindrical structure of a wall thickness, formed by being dug down in the ground 7, and the shaft 12 is provided with a gravity assembly for removably attaching a gravity compressed air energy storage system. The embodiment is exemplified by a hollow cylindrical structure in which the shaft 12 is open at the upper end.
As shown in fig. 1, the vertical shaft 12 is a hollow cylindrical structure with an open upper end, and has a certain wall thickness, and the soil layer 7 around the vertical shaft 12 needs to be reinforced in the loose water-rich soil layer 7, so as to improve the bearing capacity of the vertical shaft 12 and the foundation thereof, and to cope with the situation that the huge load on the upper part of the gravity compressed air energy storage system is transferred to the foundation of the vertical shaft 12. Therefore, the safe operation of the gravity compressed air energy storage system is met by designing a reasonable shaft 12 and adopting an effective foundation treatment method. In the embodiment, a shaft lining 13 is arranged on the inner wall of a shaft 12, and an anti-settling component is arranged on the outer wall of the shaft lining; the anti-settling component comprises a plurality of annular ring beams 9 which are made of sectional materials and have certain strength, wherein the annular ring beams 9 are sequentially sleeved on the outer wall of the vertical shaft 12 at equal intervals in the vertical direction, so that the vertical shaft 12 is reinforced and prevented from settling. Can ensure through shaft bushing 13 that the inner wall of shaft 12 is smooth wall, and then can improve sealing performance when realizing that seal membrane 8 fixes on shaft bushing 13, and be convenient for seal membrane 8's installation.
In some embodiments, the anti-settling assembly comprises a concrete plug 15, and as shown in fig. 1 in particular, the concrete plug 15 is arranged on the bottom and outer wall of the shaft 12 in a semi-surrounding manner, that is, the lower end of the concrete plug 15 is located at the bottom of the shaft 12, the upper end of the concrete plug 15 is arranged on the outer wall at the bottom of the shaft 12, and the concrete plug 15 is of a one-piece non-detachable structure. The concrete plug 15 in the embodiment can control the vertical and lateral displacement of the structure of the vertical shaft lining 13, and achieve the purpose of controlling the sedimentation and deformation of the vertical shaft 12 after the liquid nitrogen frozen soil layer 7 fails, so that the concrete plug can support and bear all loads generated when the gravity compressed air energy storage system operates.
In some embodiments, a method of constructing a shaft 12 for a gravity compressed air energy storage system for unconsolidated formations is provided, as shown in fig. 2, comprising:
s1: planning the shape, size and depth of a vertical shaft 12 on the surface of the soil layer 7;
s2: at least one group of annular freezing devices surrounded by a plurality of freezing holes 14 are arranged on the periphery of the planned vertical shaft 12, and the construction of the frozen soil layer 7 is carried out; and the minimum horizontal distance between the freezing holes 14 and the outer side of the shaft 12 is the minimum horizontal distance required for developing frozen soil outside the shaft 12;
s3: building a vertical shaft lining 13 and an anti-settlement assembly after earth excavation of the vertical shaft 12; and then grouting and solidifying through the freezing holes 14.
Specifically, in the step S1, the size and depth of the vertical shaft 12 on the surface of the soil layer 7 need to be planned according to the target parameters of the gravity compressed air energy storage system; geological conditions such as soil texture, density, water content and the like in the soil layer 7 should be investigated.
In a specific step S2, at least one set of freezing devices is arranged on the periphery of the outer wall of the planning shaft 12 as shown in fig. 3; wherein the freezing device comprises a plurality of freezing holes 14 annularly arranged around the outer wall of the vertical shaft 12, wherein the circle center of the freezing device in the circumferential direction is coincident with the circle center of the vertical shaft 12 in the circumferential direction. Wherein multiple sets of freezing devices can be set according to the geological conditions of soil layers 7, wherein the minimum horizontal distance between the freezing holes 14 on the set of freezing devices adjacent to the vertical shaft 12 in the horizontal distance and the outer side of the vertical shaft 12 is the minimum horizontal distance of the outer side of the vertical shaft 12 for developing frozen soil. Advantageously, when a plurality of sets of freezing devices are arranged, the distance between the freezing holes 14 in the horizontally adjacent freezing devices is equal to the minimum horizontal distance between the freezing holes 14 and the outside of the shaft 12, in other words, the distance between the freezing hole 14 of the freezing device closest to the outside of the shaft 12 and the outside of the shaft 12 is the distance between the freezing holes 14 in the adjacent freezing devices. The exemplary minimum horizontal distance required to develop frozen earth outside shaft 12 is 2m, with frozen earth ranging from 2-4m from the outer wall of shaft 12. Those skilled in the art will further appreciate that the cross-section of the plurality of sets of freezers and shaft 12 is a plurality of equally spaced concentric circles.
Illustratively, mechanical drilling can be used to form the freezing holes 14, the depth of the freezing holes 14 is the same as the depth of the shaft 12, in this embodiment, the depth can be 26m, the aperture is 16-20mm, preferably 16mm, each freezing device is provided with 8-12 uniformly distributed freezing holes 14, in order to accelerate the dry ice freezing construction time, the arrangement radiuses of the multiple groups of freezing devices from inside to outside are respectively:
R＝0.1T；
wherein R is the distribution radius, and the coefficient 0.1 is the frozen soil development speed at the dry ice temperature of 0.1m/d; t is the freezing time d.
Freezing pipes are inserted into the finished freezing holes 14, 12 freezing pipes on any freezing device are divided into two groups for liquid nitrogen freezing construction, 6 freezing pipes in one group are connected to a liquid nitrogen supply device through six-hole joints, and the temperature of the liquid nitrogen is controlled to be between 210 ℃ below zero and 196 ℃ below zero to freeze the loose water-rich stratum. The soil layer 7 within 6m of the periphery of the freezing vertical shaft 12 has a bearing effect, so that the freezing time is calculated according to the radius of the frozen soil which needs to be developed and the development speed of the frozen soil.
The excavation, placing of the reinforcement cage and pouring of the earth of the shaft 12 in the specific S3 may be exemplarily explained as follows:
according to the structure of the shaft 12 shown in fig. 1, the shaft 12 is excavated in multiple sections, wherein the specific method comprises the following steps: and (3) vertically excavating along the outer diameter of the vertical shaft 12 by using a vertical grab bucket machine, and excavating to the position with the depth of 6m from the ground by using a mechanical excavator. In the case that the depth of the shaft 12 is 26m in the embodiment, each 5-6m, preferably 6m, of excavation in the vertical direction is a construction stage, the shaft 12 is divided into 4 construction stages, and each construction stage sequentially performs excavation, reinforcement cage placement and concrete pouring. The embodiment divides the shaft 12 into 4 construction stages to prevent large-area construction and uneven settlement.
Understandably, because shaft 12 carries all the loads from the gravity components in the gravity compressed air energy storage system on the ground at earth level 7, shaft 12 must be constructed with steel reinforcement. Namely, immediately placing a reinforcement cage after the earth excavation is finished at each construction stage; preferably, the reinforcement cage can be encrypted at the upper section of the shaft 12 to meet the purpose of bearing and transmitting load. After the steel reinforcement cage is placed, C40 concrete can be poured.
In the process of excavating the soil inside the vertical shaft 12, a mechanical excavator can be adopted to be matched with a vertical grab bucket machine, the excavation depth of the soil is controlled to be about 5-6m each time, and the soil is excavated for three times, so that the excessive settlement and deformation of the soil around the vertical shaft 12 are avoided. And when the excavation is 300mm away from the bottom of the vertical shaft 12, manual excavation cleaning is adopted.
In this embodiment, after the shaft 12 is excavated, the shaft lining 13 and the anti-settling component are built, and preferably, the anti-settling component is formed by pouring concrete and can bear all loads transmitted by the upper part of the gravity compressed air energy storage system, so that the concrete plug 15 of the shaft 12 not only bears the weight of the gravity pressing block 1 and the shaft 12 in the gravity component, but also bears the high-pressure gas load of the gas storage chamber 11 in the gravity compressed air energy storage system, and prevents the vertical and lateral displacement of the structure of the shaft lining 13, and therefore, the arrangement of the anti-settling component effectively controls the settling of the shaft 12 and the displacement of the shaft lining 13 after the liquid nitrogen freezing construction and the load application.
In some embodiments, the method of grouting consolidation through the freeze holes 14 is: after the construction of the vertical shaft 12 is finished, the freezing pipe is removed in time, grouting consolidation can be performed again by utilizing the reserved freezing hole 14, the slurry is firstly used during grouting, then the consistency of the slurry is gradually increased, in addition, the soil body is considered to be a loose water-rich stratum, and the grouting pressure is generally 0.2-0.4MPa.
In some embodiments, the present invention provides a gravity compressed air energy storage system for unconsolidated formations, comprising a shaft 12 and a gravity assembly of the above embodiments; wherein, a gap is arranged between the outer wall of the gravity component and the inner wall of the shaft lining 13, a sealing film 8 is arranged in the gap, and the sealing film 8 is connected with the outer wall of the gravity component and the inner wall of the shaft lining 13 in a sealing way, so that an air storage chamber 11 is enclosed between the space of the sealing film 8 and the shaft 12 below the sealing film 8 and the gravity component.
As shown in particular in fig. 4, the gravity compressed air energy storage system for unconsolidated formations comprises a vertical shaft 12 and a gravity assembly; the gravity assembly comprises a gravity block group and a pressure bearing assembly; wherein the gravity block group is arranged at the top of the pressure-bearing assembly; the bottom of the pressure-bearing assembly extends into the vertical shaft 12, and the outer wall of the pressure-bearing assembly is connected with the sealing film 8; the top of the bearing assembly is located on the ground at the top of the shaft 12; the gravity block group comprises a plurality of gravity pressing blocks 1 which are stacked layer by layer in the vertical direction, and the gravity pressing blocks 1 are always in the same horizontal and vertical directions. The gravity assembly is divided into an overground gravity block group and a pressure-bearing assembly, wherein the bottom end of the pressure-bearing assembly extends into the vertical shaft 12, the sealing film 8 is directly connected with the bottom end of the outer wall of the pressure-bearing assembly, and the gravity block group is positioned outside the vertical shaft 12, so that when large energy storage is realized, all gravity blocks are not required to be concentrated in the vertical shaft 12, the height of the vertical shaft 12 can be reduced, and the excavation engineering amount and the engineering difficulty of the vertical shaft 12 are greatly reduced.
In addition, gravity block group includes a plurality of gravity briquetting 1 that set up on the vertical direction layer by layer stack, through setting gravity block group into a plurality of superimposed gravity briquetting 1, and then reduced every gravity briquetting 1's weight, reduce the hoist and mount degree of difficulty when satisfying big energy storage for in the hoist and mount work progress, hoist the pressure-bearing subassembly to the shaft 12 earlier, the pressure-bearing subassembly upper end supports on the ground of shaft 12 week side, then hoist gravity briquetting 1 layer by layer at the top of pressure-bearing subassembly.
In some embodiments, the pressure bearing assembly comprises a pressure bearing cartridge 10 and a pressure bearing base 4; wherein the bottom of the pressure-bearing cylinder 10 extends into the vertical shaft 12, and the top of the pressure-bearing cylinder is provided with a pressure-bearing base 4; the gravity block group is positioned above the bearing base 4, and when the bearing cylinder 10 moves downwards to the lowest limit position, the bearing base 4 is supported on the ground at the top of the vertical shaft 12.
Specifically, as shown in fig. 4, the pressure-bearing assembly comprises a pressure-bearing cylinder 10 and a pressure-bearing base 4, wherein the bottom end of the pressure-bearing cylinder 10 extends into the interior of the vertical shaft 12, the sealing film 8 is directly connected with the bottom end of the outer wall of the pressure-bearing cylinder 10, the top of the pressure-bearing cylinder 10 is positioned on the ground at the top of the vertical shaft 12 and is connected with the pressure-bearing base 4, a plurality of gravity pressing blocks 1 which are stacked layer by layer in the vertical direction are arranged above the pressure-bearing base 4, and the gravity pressing blocks 1 are always in the same level and the vertical direction.
In some embodiments, as shown in fig. 4, the pressure bearing assembly includes a cushion assembly 6; the buffer assembly 6 comprises a pressure spring 63, a plurality of pressure springs 63 are distributed on the periphery of the shaft 12 and located on the ground outside the top end of the shaft 12, and the top of each pressure spring 63 is connected with the bottom of the pressure-bearing base 4, the arrangement of the buffer assembly 6 in the embodiment reduces the bumping of the gravity assembly in the ascending or descending process, and the descending displacement of the gravity assembly can be limited.
Specifically, as shown in fig. 6, the buffer assembly 6 includes a top support 61 and a bottom support 62 which are arranged oppositely, and a pressure spring 63 connected between the top support 61 and the bottom support 62, the top end and the bottom end of the pressure spring 63 are connected to the top support 61 and the bottom support 62 respectively, an upper central link 65 is arranged in the middle of the bottom surface of the top support 61, a lower central link 66 is arranged in the middle of the top surface of the bottom support 62, the upper central link 65 and the lower central link 66 are both located in the middle of the pressure spring 63, a sliding hole arranged in the vertical direction is formed in the middle of the top end surface of the lower central link 66, and the bottom end of the upper central link 65 is located in the sliding hole and can move up and down along the sliding hole.
It can be understood that, through last central link 65 in the slide opening in lower central link 66 up and down, realize that lower central link 66 is spacing to last central link 65, because the top and the low end of pressure spring 63 are connected respectively on top support 61 and collet 62, make pressure spring 63 can be with top support 61 jack-up upwards under the spring action, under the downward effect of gravity subassembly, exert certain effort to top support 61, pressure spring 63 compression cushions, through last central link 65 in the slide opening in lower central link 66 down slide, until pressure spring 63 compresses to the limit, this embodiment realizes the cushioning effect to the gravity subassembly through a plurality of buffer unit 6.
In some embodiments, the bottom surface of the top support 61 is provided with an upper annular protection ring 67, the surface of the bottom support 62 is provided with a lower annular protection ring 68, the lower annular protection ring 68 is sleeved in the upper annular protection ring 67, the pressure spring 63 is positioned in the lower annular protection ring 68, and the outer diameter of the lower annular protection ring 68 is equal to the inner diameter of the upper annular protection ring 67. It can be understood that, when the pressure spring 63 pushes the top support 61 to the highest, at this time, a part of the top end of the lower annular protection ring 68 is located inside the upper annular protection ring 67, so that when the pressure spring 63 compresses downward, the upper annular protection ring 67 protects the upper annular protection ring 67 from being sleeved outside the lower annular protection ring 68 in the process of moving downward along with the top support 61, and is connected with the inner wall of the lower annular protection ring 68 to move, the upper annular protection ring 67 cannot move downward any more, in this embodiment, the compression direction of the pressure spring 63 can be constrained by the limiting effect of the lower annular protection ring 68, and the foreign matter is prevented from entering the inside of the buffer assembly 6 to cause the abnormal operation of the buffer assembly.
In some embodiments, as shown in fig. 4, the pressure containment assembly includes a locking platform 5; wherein, the locking platform 5 is fixed on the peripheral side of the shaft 12 in a ring shape and is positioned on the ground outside the top end of the shaft 12, the inner side of the locking platform 5 is fixedly connected with the buffer component 6, the locking platform is positioned on the outer side of the buffer component 6 and is positioned below the pressure-bearing base 4 in the vertical direction.
Specifically, as shown in fig. 6, in the present embodiment, the locking platform 5 is fixedly connected to the buffering component 6 by setting an angle iron 64; one end of the angle steel 64 is arranged on the inner wall of the locking platform 5, and the other end of the angle steel is fixed at the bottom of the buffer assembly 6. It can be understood that, under accident operating mode, the even dispersion of impact load that gravity subassembly free fall produced transmits to each buffering subassembly 6, and furthest's performance buffering subassembly 6 buffering effect, buffering subassembly 6 performance to the extreme state after, the top conflict of gravity subassembly and locking platform 5 can realize buffering absorbing effect. Preferably, an elastic pad 51 may be provided on top of the locking platform 5, and a certain damping effect may be achieved again by the elastic pad 51. Locking platform 5 in this embodiment is used for fixing buffering subassembly 6, guarantees that buffering subassembly 6 carries out shock attenuation and buffering to gravity subassembly on vertical direction, limits gravity subassembly's decline displacement simultaneously in vertical direction, and the lowest department of gravity subassembly downstream is the upper end contact of pressure-bearing base 4 and locking platform 5 promptly.
In some embodiments, the energy storage system comprises a guide means 3 comprising a guide channel and rollers; the guide grooves are distributed on the periphery of the gravity component and are arranged on the inner wall of the vertical shaft 12 or the outer part of the vertical shaft 12; the roller is matched with the guide groove and connected with the groove bottom of the guide groove, so that the roller moves up and down along the groove bottom of the guide groove when the gravity assembly moves up and down.
In a specific guide device, a plurality of guide grooves are arranged, the plurality of guide grooves are distributed on the peripheral side of the gravity assembly, and the guide grooves are arranged on the inner wall of the shaft 12 or on the outer part of the shaft 12, namely, the guide grooves can be arranged inside the shaft 12 or on the outer part of the shaft 12. The gyro wheel sets up a plurality ofly, and a plurality of gyro wheels are installed in gravity subassembly week side through the pivot respectively, and the gyro wheel meets with the tank bottom of guide slot to the gyro wheel reciprocates along the tank bottom of guide slot when making gravity subassembly reciprocate, and wherein the gyro wheel slides with the guide slot cooperation is mechanical field common means, no longer details.
It can be understood that, when the gravity assembly is located in the shaft 12 and moves in the energy storage process, a plurality of guide grooves can be arranged on the periphery of the inner wall of the shaft 12, for example, four guide grooves can be arranged, 4 guide grooves can be arranged on the inner wall of the shaft 12 at equal angles, because the roller on the gravity assembly is arranged on the periphery of the gravity assembly through the rotating shaft, the roller can rotate on the gravity assembly, when the roller is connected with the bottom of the guide groove, the roller can not only limit the position through the guide grooves, the guide grooves are matched with the roller to restrict the movement direction of the gravity assembly, meanwhile, the gravity assembly vertically moves upwards or downwards along the direction of the guide grooves at a certain speed, and a lubricant, such as grease and graphite, is added to the contact position of the guide grooves and the roller periodically, so that friction is reduced, and the conversion rate of gravitational potential energy is improved.
In addition, there is also a possibility that the ground outside the top end of the shaft 12 is provided with a plurality of tower structures 2, as shown in fig. 4, the plurality of tower structures 2 are distributed on the periphery side of the shaft 12 and located outside the locking platform 5, a plurality of guide grooves are respectively installed on the plurality of tower structures 2, that is, 4 tower structures 2 can be provided, and then the 4 guide grooves are arranged on the 4 tower structures 2 outside the shaft 12, during the energy storage process, a part of the gravity assembly is located outside the shaft 12, a part of the gravity assembly is located inside the shaft 12, and the outer wall of the gravity assembly located inside the shaft 12 and the inner wall of the shaft 12 are hermetically connected through a sealing film 8.
In some embodiments, the plurality of gravity compacts 1 are each provided with a guide device 3 on the peripheral side thereof, and as shown in fig. 4 and 5, the guide devices 3 are installed on the peripheral side of the gravity compacts 1 between the gravity compacts 1 and the turret structure 2 opposite to the gravity compacts 1. A gap is reserved between the outer side wall of the gravity press block 1 and the inner side wall of the tower, and a plurality of rollers are respectively arranged on the peripheral side of the gravity block group and the peripheral side of the outer wall of the top end of the pressure-bearing cylinder 10 as shown in fig. 5, so that the above-ground gravity block group and the pressure-bearing cylinder 10 can move up and down along the guide grooves through the rollers in the up-and-down moving process.
Specifically as shown in fig. 5, each gravity pressing block 1 is provided with an installation groove on the periphery, a steel plate groove is installed in the installation groove, the roller is located in the steel plate groove, and the rotating shaft connected to the roller is installed between the side walls on the two opposite sides of the steel plate groove, which is not described again for common structural arrangements.
In addition, it should be noted that the pressure-containing cylinder 10 is filled with sand.
It can be understood that the pressure-bearing cylinder 10 can be a cylindrical structure surrounded by steel plates, the interior of the pressure-bearing cylinder is of a hollow structure, the reduced weight is convenient to hoist, and in addition, sand is filled in the pressure-bearing cylinder 10 to increase the gravity of stored energy.
In addition, the gravity compressed air energy storage system further comprises an air compression unit, an air expansion unit and a generator; the inlet of the air compression unit is connected with an air inlet device, the outlet of the air compression unit is connected with the inlet of the air storage chamber 11 through an energy storage pipeline, the outlet of the air storage chamber 11 is connected with the inlet of the air expansion unit through an energy release pipeline, and the outlet of the air expansion unit is connected with the generator; a heat exchange unit is arranged between the energy storage pipeline and the energy release pipeline. The exemplary air compression unit can be provided with a plurality of stages of air compressors according to actual needs; the air expansion unit can be provided with a plurality of stages of expanders according to actual needs.
The energy release pipeline is provided with a flow detection device, a pressure detection device and an adjusting valve, and the flow detection device, the pressure detection device and the adjusting valve are respectively connected with a control unit of the gravity compressed air energy storage system to monitor and control key parameters of the system in real time.
The gravity compressed air energy storage system in this embodiment is in operation:
the gravity compressed air energy storage system stores energy in the power grid electricity utilization valley period, the energy release pipeline is closed, the energy storage pipeline is opened, air enters the air compression unit through the air inlet device and is compressed into compressed air, generated heat is stored in the heat exchange unit, the compressed air enters the air storage chamber 11 through the energy storage pipeline, the volume of the air storage chamber 11 is increased, the gravity pressing block 1 is lifted by the compressed air at constant pressure, and electric energy is converted into compressed air energy and gravitational potential energy of the gravity pressing block 1;
during the power utilization peak period of the power grid, the compressed air energy storage system releases energy, the energy release pipeline is opened, the energy storage pipeline is closed, the gravity pressing block 1 descends, the volume of the air storage chamber 11 is reduced, compressed air is heated by the heat exchange unit and then enters the air expansion unit through the energy release pipeline to do work at constant pressure and drive the generator to generate power, and the compressed air energy and the gravitational potential energy of the gravity pressing block 1 are converted into electric energy.
It should be noted that the terms "first," "second," and the like in the description of the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and alternate implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present invention.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
1. The vertical shaft is of a hollow structure with a certain wall thickness, and the top of the vertical shaft is opened to be movably inserted with a gravity component in the gravity compressed air energy storage system; the inner wall of the vertical shaft is provided with a vertical shaft lining, and the outer wall of the vertical shaft is provided with an anti-settling component;
the anti-settling assembly comprises a plurality of ring beams which are sequentially arranged at intervals on the outer wall of the vertical shaft in the vertical direction.
2. The shaft of claim 1 wherein the anti-subsidence assembly comprises a concrete plug; the concrete plug is arranged on the bottom and the outer wall of the vertical shaft in a semi-surrounding mode.
3. Method for constructing a shaft of a gravity compressed air energy storage system for unconsolidated formations, characterized in that the shaft of claim 1 or 2 is constructed, comprising:
planning the shape, size and depth of the vertical shaft on the surface of the soil layer;
at least one group of annular freezing devices consisting of a plurality of freezers Kong Weicheng are arranged on the periphery of the planned vertical shaft, and frozen soil layer construction is carried out; and the minimum horizontal distance between the freezing holes and the outer side of the vertical shaft is the minimum horizontal distance for the outer side of the vertical shaft to develop frozen soil;
building a vertical shaft lining and anti-settlement assembly after the earthwork of the vertical shaft is excavated; and grouting and solidifying through the freezing holes.
4. The method of claim 3, wherein a circumferential center of the freezing device coincides with a center of gravity of the shaft; the aperture of the freezing hole is 16-20mm; and each set of said freezing means comprises 8-12 freezing holes; the method for calculating the layout radius of the freezing device comprises the following steps:
R＝0.1T；
wherein R is the distribution radius, and the coefficient is 0.1, namely the frozen soil development speed is 0.1m/d; t is the freezing time d.
5. A method according to claim 3, characterized in that the horizontal distance between freezing holes in horizontally adjacent freezing devices is equal to the minimum horizontal distance of the freezing holes from the outside of the shaft.
6. A gravity compressed air energy storage system for unconsolidated formations, comprising a shaft as claimed in claim 1 or 2; gravity subassembly outer wall with it is gapped between the inner wall of shaft lining, be provided with the seal membrane in the clearance, the seal membrane with gravity subassembly outer wall with sealing connection between the inner wall of shaft lining, so that the seal membrane the shaft is located the space of seal membrane below enclose into the gas receiver between the gravity subassembly.
7. The system of claim 6, wherein the gravity assembly comprises a gravity block set and a pressure bearing assembly; the gravity block group is arranged at the top of the pressure bearing assembly; the bottom of the pressure bearing assembly extends into the shaft, and the outer wall of the pressure bearing assembly is connected with the sealing film; the top of the bearing assembly is located on the ground at the top of the shaft.
8. The system of claim 7, wherein the pressure bearing assembly comprises a pressure bearing cartridge, a pressure bearing base, and a cushioning assembly; the bottom of the pressure bearing cylinder extends into the shaft, and the top of the pressure bearing cylinder is provided with a pressure bearing base; the gravity block group is positioned above the pressure-bearing base so that the pressure-bearing cylinder is supported on the ground at the top of the vertical shaft through the pressure-bearing base when moving downwards to the lowest limit position; the buffer component is distributed on the peripheral side of the vertical shaft and is positioned on the ground outside the top end of the vertical shaft, and the top of the buffer component is connected with the pressure-bearing base.
9. The system of claim 8, wherein the pressure bearing assembly comprises a locking platform; it sets up week side of shaft is located the outside ground in shaft top, just locking platform with buffering subassembly is connected and is located buffering subassembly's the outside is used for fixing buffering subassembly.
10. The system of claim 6, wherein the energy storage system comprises a guide device comprising a guide channel and a roller; the guide grooves are distributed on the periphery of the gravity component and are arranged on the inner wall of the vertical shaft or the outer part of the vertical shaft; the roller is matched with the guide groove and connected with the groove bottom of the guide groove, so that the roller moves up and down along the groove bottom of the guide groove when the gravity assembly moves up and down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210795079.6A CN115218112A (en) | 2022-07-07 | 2022-07-07 | Vertical shaft of gravity compressed air energy storage system for unconsolidated formation and energy storage system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210795079.6A CN115218112A (en) | 2022-07-07 | 2022-07-07 | Vertical shaft of gravity compressed air energy storage system for unconsolidated formation and energy storage system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115218112A true CN115218112A (en) | 2022-10-21 |
Family
ID=83609507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210795079.6A Pending CN115218112A (en) | 2022-07-07 | 2022-07-07 | Vertical shaft of gravity compressed air energy storage system for unconsolidated formation and energy storage system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115218112A (en) |
Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4856565A (en) * | 1987-08-14 | 1989-08-15 | Bauer-Kompressoren Gmbh | Protective enclosure device for filling tanks with compressed gas |
| GB2296557A (en) * | 1994-12-29 | 1996-07-03 | Ohbayashi Corp | Stabilisation of an underground construction for storing pressurized fluid |
| CN102877540A (en) * | 2012-09-26 | 2013-01-16 | 中国一冶集团有限公司 | Drainage inspection well capable of reducing sedimentation and manufacturing method for drainage inspection well |
| CN105040710A (en) * | 2015-07-04 | 2015-11-11 | 朱奎 | Support structure for bilge well construction |
| JP2016134562A (en) * | 2015-01-21 | 2016-07-25 | 京セラ株式会社 | Resin composition for coil impregnation and coil component |
| CN106088154A (en) * | 2016-08-16 | 2016-11-09 | 黄竟强 | Prefabricated assembled underground silo compound shaft construction method and silo structure |
| CN110030007A (en) * | 2019-05-06 | 2019-07-19 | 济南城建集团有限公司 | Shield horizontal freezing receives construction method |
| CN110042870A (en) * | 2019-04-24 | 2019-07-23 | 昆山加林工程项目管理有限公司 | A kind of road broadside walling crib structure of resistance to deformation anti-settling |
| KR200489828Y1 (en) * | 2019-04-11 | 2019-08-16 | 이승훈 | Portable air storing and discharging apparatus |
| CN111271591A (en) * | 2020-03-23 | 2020-06-12 | 清华大学 | Gas storage device |
| CN211894524U (en) * | 2020-04-07 | 2020-11-10 | 成都科诚光电科技有限公司 | Container for distributed energy storage power station |
| CN214116907U (en) * | 2020-11-30 | 2021-09-03 | 徐州市天益塑料制品有限公司 | Anti-sedimentation plastic inspection well |
| CN214780438U (en) * | 2020-11-19 | 2021-11-19 | 中国华能集团有限公司 | Gravity type compressed air energy storage vertical shaft |
| CN215674720U (en) * | 2021-03-04 | 2022-01-28 | 余水龙 | Constant-pressure energy storage system |
| CN216476496U (en) * | 2021-12-02 | 2022-05-10 | 南京工业大学建筑设计研究院有限公司 | Anti-settling fixing structure for existing civil security building |
| CN216582114U (en) * | 2021-12-21 | 2022-05-24 | 中国电建集团中南勘测设计研究院有限公司 | Underground rock cavern gas storage structure |
| CN218095406U (en) * | 2022-07-07 | 2022-12-20 | 西安热工研究院有限公司 | Vertical shaft structure convenient for overhauling air storage chamber of gravity compressed air energy storage system |
-
2022
- 2022-07-07 CN CN202210795079.6A patent/CN115218112A/en active Pending
Patent Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4856565A (en) * | 1987-08-14 | 1989-08-15 | Bauer-Kompressoren Gmbh | Protective enclosure device for filling tanks with compressed gas |
| GB2296557A (en) * | 1994-12-29 | 1996-07-03 | Ohbayashi Corp | Stabilisation of an underground construction for storing pressurized fluid |
| CN102877540A (en) * | 2012-09-26 | 2013-01-16 | 中国一冶集团有限公司 | Drainage inspection well capable of reducing sedimentation and manufacturing method for drainage inspection well |
| JP2016134562A (en) * | 2015-01-21 | 2016-07-25 | 京セラ株式会社 | Resin composition for coil impregnation and coil component |
| CN105040710A (en) * | 2015-07-04 | 2015-11-11 | 朱奎 | Support structure for bilge well construction |
| CN106088154A (en) * | 2016-08-16 | 2016-11-09 | 黄竟强 | Prefabricated assembled underground silo compound shaft construction method and silo structure |
| KR200489828Y1 (en) * | 2019-04-11 | 2019-08-16 | 이승훈 | Portable air storing and discharging apparatus |
| CN110042870A (en) * | 2019-04-24 | 2019-07-23 | 昆山加林工程项目管理有限公司 | A kind of road broadside walling crib structure of resistance to deformation anti-settling |
| CN110030007A (en) * | 2019-05-06 | 2019-07-19 | 济南城建集团有限公司 | Shield horizontal freezing receives construction method |
| CN111271591A (en) * | 2020-03-23 | 2020-06-12 | 清华大学 | Gas storage device |
| CN211894524U (en) * | 2020-04-07 | 2020-11-10 | 成都科诚光电科技有限公司 | Container for distributed energy storage power station |
| CN214780438U (en) * | 2020-11-19 | 2021-11-19 | 中国华能集团有限公司 | Gravity type compressed air energy storage vertical shaft |
| CN214116907U (en) * | 2020-11-30 | 2021-09-03 | 徐州市天益塑料制品有限公司 | Anti-sedimentation plastic inspection well |
| CN215674720U (en) * | 2021-03-04 | 2022-01-28 | 余水龙 | Constant-pressure energy storage system |
| CN216476496U (en) * | 2021-12-02 | 2022-05-10 | 南京工业大学建筑设计研究院有限公司 | Anti-settling fixing structure for existing civil security building |
| CN216582114U (en) * | 2021-12-21 | 2022-05-24 | 中国电建集团中南勘测设计研究院有限公司 | Underground rock cavern gas storage structure |
| CN218095406U (en) * | 2022-07-07 | 2022-12-20 | 西安热工研究院有限公司 | Vertical shaft structure convenient for overhauling air storage chamber of gravity compressed air energy storage system |
Non-Patent Citations (1)
| Title |
|---|
| 吴璋;王晓东;武光辉;朱明诚;: "井筒冻结孔解冻涌水发生机制及其控制技术", 煤田地质与勘探, no. 01, 25 February 2015 (2015-02-25) * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2018236818B2 (en) | System and method for storing energy | |
| US11355997B2 (en) | Large scale flywheel for energy storage | |
| CN115234477B (en) | Vertical shaft of gravity compressed air energy storage system for loess geology and reinforcing method | |
| CN115218112A (en) | Vertical shaft of gravity compressed air energy storage system for unconsolidated formation and energy storage system | |
| CN115208072A (en) | Anchoring structure of sealing film and gravity compressed air energy storage system | |
| CN115094953A (en) | Vertical shaft of gravity compressed air energy storage system for unconsolidated formation and construction method | |
| CN114086600B (en) | Energy storage wheel and method for constructing vacuum chamber of energy storage wheel | |
| CN216973378U (en) | Semi-underground circular coal yard | |
| KR102600412B1 (en) | Gravity-Hydraulic Combined Electric Energy Storage System | |
| CN115208069A (en) | Gravity compressed air energy storage system based on comprehensive buffering and damping | |
| CN211285678U (en) | Composite foundation for treating underwater soft soil foundation based on rapid prepressing consolidation | |
| CN108661039B (en) | Treatment process for foundation of large crawler crane construction platform | |
| CN115208068A (en) | Gravity compressed air energy storage system comprising attitude adjusting assembly | |
| CN115208071A (en) | Gravity compressed air energy storage system comprising liquid vibration damper | |
| CN217813621U (en) | Energy storage system based on large-volume-weight pressing block | |
| CN115218113B (en) | Layered gas storage device and gravity compressed air energy storage system | |
| CN218894746U (en) | Gravity compressed air energy storage system gas storage | |
| CN115199933A (en) | Air storage chamber and gravity compressed air energy storage system based on flexible air guide | |
| CN115638092A (en) | Top type energy storage system | |
| CN115224808A (en) | Gravity compressed air energy storage system based on adjustable gravity briquetting | |
| EA044162B1 (en) | COMBINED GRAVITY-HYDRAULIC ELECTRIC ENERGY STORAGE SYSTEM | |
| CN117803529A (en) | Fan foundation, wind generating set and construction method of fan foundation | |
| CN115224809A (en) | Protective gravity compressed air energy storage system for reducing impact force of gravity pressing block | |
| CN116378046A (en) | Foundation pit engineering axial force servo concrete support system and design method | |
| CN118030075A (en) | Supporting structure and method suitable for excavation of vertical shafts of adjacent pipe gallery of existing pipeline |
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 |