CN115031154B - Gravity type energy storage system based on pressure lever - Google Patents
Gravity type energy storage system based on pressure lever Download PDFInfo
- Publication number
- CN115031154B CN115031154B CN202210719709.1A CN202210719709A CN115031154B CN 115031154 B CN115031154 B CN 115031154B CN 202210719709 A CN202210719709 A CN 202210719709A CN 115031154 B CN115031154 B CN 115031154B
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- lever
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- cavity
- pressure
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- 230000005484 gravity Effects 0.000 title claims abstract description 88
- 238000004146 energy storage Methods 0.000 title claims abstract description 26
- 238000007789 sealing Methods 0.000 claims abstract description 31
- 238000004891 communication Methods 0.000 claims description 16
- 230000000694 effects Effects 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims description 4
- 230000001174 ascending effect Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 12
- 230000008569 process Effects 0.000 description 11
- 239000007788 liquid Substances 0.000 description 5
- 238000005381 potential energy Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
Classifications
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- 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
- F17B1/04—Sealing devices for sliding parts
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- 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
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
The application provides a gravity type energy storage system based on pressure lever, which comprises a vertical shaft, wherein a gravity pressing block is movably inserted in the vertical shaft, the gravity pressing block is in sealing connection with the side wall of the vertical shaft through a sealing element, a gas storage cavity is formed among the gravity pressing block, the sealing element and the space of the vertical shaft below the sealing element, a communicating cavity is formed in the side wall of the bottom of the vertical shaft, a pressure cylinder is arranged at the bottom of the communicating cavity, a lever is arranged in the communicating cavity, one end of the lever is hinged with a crank, and the other end of the lever is positioned below the gravity pressing block; the top end of the piston is connected with the bottom end of the crank, the piston is movably inserted into the pressure cylinder, the piston is sealed with the pressure cylinder, a sealing cavity is formed in the pressure cylinder below the piston, and compressible gas is filled in the sealing cavity. Through setting up pneumatic cylinder, piston, lever in the gas storage chamber department, when realizing ventilating, the pressure of compressed air self in the gas storage chamber can act on the piston, and the piston drives the lifting of lever one end and applys ascending auxiliary force to the gravity briquetting, the start-up of the gravity briquetting of being convenient for.
Description
Technical Field
The application relates to the technical field of electric energy storage, in particular to a gravity type energy storage system based on a pressure lever.
Background
The gravity compressed air energy storage is characterized in that a gravity block is arranged in a vertical shaft, the gravity block is connected with the vertical shaft in a sealing mode through a sealing film, a sealed gas storage cavity is formed in the vertical shaft below the gravity block and used for storing high-pressure gas, the energy of the compressed air is partially converted into gravitational potential energy of the gravity block to be stored in the gas storage cavity after the air is compressed, and in the energy storage process, the gas is introduced into the gas storage cavity to enable the gravity block to be jacked up upwards by the gas in the gas storage cavity, but when the gravity of the gravity block is large, larger acting force is needed when the gravity block is started.
Disclosure of Invention
The present application aims to solve, at least to some extent, one of the technical problems in the related art.
Therefore, the purpose of this application provides a gravity type energy storage system based on pressure lever, through set up pressure jar, piston and lever in gas storage chamber department, when ventilating, the pressure of compressed air self in the gas storage chamber can act on the piston, can stimulate the one end of lever and remove downwards when the piston moves downwards, the other end lifting, ascending auxiliary force is applyed to the gravity briquetting to the one end of lifting, the start-up of gravity briquetting of being convenient for, and the force of applying the lever is the pressure of compressed air self in the gas storage chamber, when realizing the gravity briquetting start-up, the rational utilization of compressed air pressure.
To achieve the above object, a gravity energy storage system based on a pressure lever according to the present application includes:
the vertical shaft is movably inserted with a gravity pressing block, the gravity pressing block is in sealing connection with the side wall of the vertical shaft through a sealing piece, an air storage cavity is formed among the gravity pressing block, the sealing piece and the space, below the sealing piece, of the vertical shaft, at least one communication cavity is formed in the side wall of the bottom of the vertical shaft, a pressure cylinder is arranged at the bottom of the communication cavity, and the communication cavity is communicated with the air storage cavity;
the lever is arranged in the communication cavity, one end of the lever is hinged with a crank, and the other end of the lever is positioned below the gravity pressing block;
the top end of the piston is connected with the bottom end of the crank, the piston is movably inserted into the pressure cylinder, the piston is sealed with the pressure cylinder, a sealing cavity is formed in the pressure cylinder below the piston, compressible gas is filled in the sealing cavity, the piston is driven to move downwards by introducing gas into the gas storage cavity, and one end of the lever is lifted upwards to provide an upward auxiliary force for the gravity pressing block.
Further, the pressure cylinder above the piston is filled with a viscous pressure fluid to effect a seal between the piston and the pressure cylinder by the viscous pressure fluid.
Further, a support is arranged in the communication cavity, and the lever is mounted on the support.
Further, the bottom side wall of the gravity pressing block is provided with a containing groove extending to the bottom surface, and one end of the lever extends into the containing groove.
Further, the communication cavity is arranged transversely.
Further, the communicating cavity is provided with a plurality of, a plurality of lever equi-angle settings in the communicating cavity are in gravity briquetting week side, every all be provided with in the communicating cavity the pneumatic cylinder.
Further, the gas storage cavity is connected with the air compressor unit through an energy storage pipeline, and the gas storage cavity is connected with the air expansion unit through an energy release pipeline.
Additional aspects and advantages of the application 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 application.
Drawings
The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:
fig. 1 is a schematic structural diagram of a gravity energy storage system based on a pressure lever according to an embodiment of the present application.
In the figure, 1, a vertical shaft; 2. a lever; 3. a piston; 4. a gravity briquetting; 41. a receiving groove; 5. a gas storage chamber; 6. a communication chamber; 7. a pressure cylinder; 8. a crank; 9. sealing the cavity; 10. and (5) a support.
Detailed Description
Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application. On the contrary, the embodiments of the present application include all alternatives, modifications, and equivalents as may be included within the spirit and scope of the appended claims.
Fig. 1 is a schematic structural diagram of a gravity energy storage system based on a pressure lever according to an embodiment of the present application.
Referring to fig. 1, a gravity energy storage system based on a pressure lever comprises a vertical shaft 1, a lever 2 and a piston 3, wherein a gravity pressing block 4 is movably inserted in the vertical shaft 1, the gravity pressing block 4 is in sealing connection with the side wall of the vertical shaft 1 through a sealing element, an air storage cavity 5 is formed among the gravity pressing block 4, the sealing element and the space below the sealing element, the gravity pressing block 4 can move up and down in the vertical shaft 1, a piston-air cylinder system is formed between the gravity pressing block 4 and the vertical shaft 1, and the structure for realizing the sealing connection between the gravity pressing block 4 and the vertical shaft 1 through the sealing element is the prior art and is not repeated in detail.
The bottom lateral wall of shaft 1 opens there is at least one intercommunication chamber 6, the bottom in intercommunication chamber 6 is provided with pressure jar 7, intercommunication chamber 6 is linked together with gas storage chamber 5 and pressure jar 7, and then make the air that lets in gas storage chamber 5 can get into in the intercommunication chamber 6, get into pressure jar 7 through intercommunication chamber 6, lever 2 sets up in intercommunication chamber 6, the one end of lever 2 articulates there is crank 8, the other end is located the below of gravity briquetting 4, the top and the bottom of crank 8 of piston 3 are connected, piston 3 activity is pegged graft in pressure jar 7, seal between piston 3 and the pressure jar 7, form sealed chamber 9 in the pressure jar 7 of piston 3 below, the packing has compressible gas in sealed chamber 9, in order to drive piston 3 downwardly moving through letting in gas to gas storage chamber 5, make lever 2 one end upwards rise and provide ascending effort to gravity briquetting 4, the start-up of gravity briquetting 4 of being convenient for.
In detail, when compressed air is introduced into the air storage cavity 5, the compressed air in the air storage cavity 5 enters the pressure cylinder 7 above the piston 3 through the communication cavity 6, the piston 3 moves downwards to compress the compressible air in the pressure cylinder 7 under the pressure of the compressed air, one end of the lever 2 is driven to move downwards through the crank 8 in the downward movement process of the piston 3 according to the lever principle, the other end of the lever 2 is tilted upwards, the tilted one end acts on the gravity pressing block 4 in the upward movement process to apply upward force to the gravity pressing block 4, the gravity pressing block 4 is started upwards to provide auxiliary force, the starting of the gravity pressing block 4 is facilitated, and the action external force required by the upward movement of the gravity pressing block 4 is reduced.
In some embodiments, the pressure cylinder 7 above the piston 3 is filled with a viscous pressure liquid, so that the sealing between the piston 3 and the pressure cylinder 7 is realized by the viscous pressure liquid, the sealing effect by the liquid is better, and in the initial state, the gravity of the viscous pressure liquid acting on the piston 3 and the air pressure in the pressure cylinder 7 and the pressure of the compressible gas in the sealing cavity 9 balance the upward pressure of the piston 3, so that the lever 2 is in the horizontal state.
In addition, a support 10 is provided in the communication chamber 6, and the lever 2 is mounted on the support 10, that is, the lever 2 may be hinged to the support 10 such that the junction of the lever 2 and the support 10 forms a fulcrum.
In some embodiments, the bottom side wall of the gravity block 4 is provided with a receiving groove 41 extending to the bottom surface, and one end of the lever 2 extends into the receiving groove 41, so that when the end of the lever 2 close to the gravity block 4 is lifted, the end can directly act on the gravity block 4.
Preferably, the communicating cavity 6 transversely sets up, directly constructs one section formation communicating cavity 6 on the lateral wall of shaft 1 perpendicularly, then offers pressure cylinder 7 subaerial at the one end that shaft 1 was kept away from to communicating cavity 6, pressure cylinder 7 and shaft 1 are vertical setting, support 10 is located communicating cavity 6 this moment, lever 2 is propped up through support 10, the setting of holding tank 41 can ensure that the one end of lever 2 stretches into holding tank 41, can ensure that it acts on gravity briquetting 4 below when lever 2 one end rises, gravity briquetting 4 has ascending effort.
In some embodiments, the communicating chambers 6 may be provided in plurality, the levers 2 in the communicating chambers 6 are equiangularly disposed on the circumference side of the gravity pressing block 4, the pressure cylinders 7 are disposed in each communicating chamber 6, the upward force can be applied to the gravity pressing block 4 through the levers 2 disposed in the communicating chambers 6, and since the levers 2 in the communicating chambers 6 are equiangularly disposed on the circumference side of the gravity pressing block 4, the upward assisting force of one end of the levers 2 on the gravity pressing block 4 is uniform, when the communicating chambers 6 are provided in plurality, the bottom side wall of the gravity pressing block 4 may be correspondingly provided with the plurality of accommodating grooves 41, the plurality of accommodating grooves 41 may also be connected together to form a ring groove structure around the circumference side of the bottom of the gravity pressing block 4, and the accommodating grooves 41 may be equivalent to an annular groove structure which may be disposed around the circumference side of the bottom end of the gravity pressing block 4 when the gravity pressing block is in a columnar structure.
In some embodiments, the air storage cavity 5 is connected with the air compressor unit through an energy storage pipeline, the air storage cavity 5 is connected with the air expansion unit through an energy release pipeline, so that electric energy controls the air compressor unit to compress air and then pass through the energy storage pipeline to be introduced into the air storage cavity 5, and compressed gas in the air storage cavity 5 passes through the energy release pipeline to be introduced into the air expansion unit to do work, so that the generator is driven to generate electricity.
In detail, the specific energy storage process of the gravity energy storage system based on the pressure lever is as follows:
in the initial state, the gravity of the viscous pressure liquid acting on the piston 3 plus the air pressure in the pressure cylinder 7 balances the upward pressure of the compressible gas in the sealing cavity 9 on the piston 3, so that the lever 2 is in a horizontal state;
when compressed air stores energy, surplus electric energy drives the air compressor unit to compress air to form compressed air, the compressed air charges air into the air storage cavity 5 through the energy storage pipeline, the compressed air in the air storage cavity 5 enters the pressure cylinder 7 through the communication cavity 6, downward pressure is applied to the piston 3, the piston 3 moves downwards in the pressure cylinder 7, one end of the lever 2 is pulled to move downwards through the crank 8 in the moving process, the other end of the lever 2 is lifted upwards, upward auxiliary force is applied to the gravity pressing block 4 in the lifting process, starting of the gravity pressing block 4 is facilitated, and compressible gas below the piston 3 is compressed in the moving process of the piston 3 downwards.
In the upward movement process of the gravity pressing block 4, one end of the lever 2, which is close to the gravity pressing block 4, also moves upward to a certain position and then stops, and the inclined state is maintained.
When expansion does work, compressed air in the air storage cavity 5 is introduced into the air expansion unit to do work to drive the generator to generate electricity, the heat energy of the compressed air, the potential energy of the compressed air and the gravitational potential energy of the gravity pressing block 4 are converted into electric energy, meanwhile, in the process that the compressed air in the air storage cavity 5 does work outwards, the gravity pressing block 4 moves downwards, when the gravity pressing block 4 moves to be in contact with one end lifted by the lever 2, the gravity pressing block 4 is supported and buffered through the one end lifted by the lever 2, and the gravity pressing block 4 slowly moves downwards to the lowest limit position.
It should be noted that in the description of the present application, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Furthermore, in the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.
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 further implementations are included within the scope of the preferred embodiment of the present application 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 embodiments of the present application.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means 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 present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. 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 application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives, and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the application.
Claims (7)
1. A pressure lever-based gravity energy storage system, comprising:
the vertical shaft is movably inserted with a gravity pressing block, the gravity pressing block is in sealing connection with the side wall of the vertical shaft through a sealing piece, an air storage cavity is formed among the gravity pressing block, the sealing piece and the space, below the sealing piece, of the vertical shaft, at least one communication cavity is formed in the side wall of the bottom of the vertical shaft, a pressure cylinder is arranged at the bottom of the communication cavity, and the communication cavity is communicated with the air storage cavity;
the lever is arranged in the communication cavity, one end of the lever is hinged with a crank, and the other end of the lever is positioned below the gravity pressing block;
the top end of the piston is connected with the bottom end of the crank, the piston is movably inserted into the pressure cylinder, the piston is sealed with the pressure cylinder, a sealing cavity is formed in the pressure cylinder below the piston, compressible gas is filled in the sealing cavity, the piston is driven to move downwards by introducing gas into the gas storage cavity, and one end of the lever is lifted upwards to provide an upward auxiliary force for the gravity pressing block.
2. The pressure lever based gravity energy storage system according to claim 1, wherein the pressure cylinder above the piston is filled with a viscous pressure fluid to effect a seal between the piston and the pressure cylinder by the viscous pressure fluid.
3. The pressure lever based gravity energy storage system according to claim 1, wherein a support is provided in the communication cavity, the lever being mounted on the support.
4. The pressure lever-based gravity energy storage system of claim 1, wherein a bottom end side wall of the gravity block is provided with a receiving groove extending to a bottom surface, and one end of the lever extends into the receiving groove.
5. The pressure lever based gravity energy storage system of claim 4, wherein the communication cavity is laterally disposed.
6. The gravity energy storage system according to claim 1 or 4, wherein a plurality of communicating cavities are provided, levers in the plurality of communicating cavities are arranged on the periphery of the gravity pressing block at equal angles, and the pressure cylinder is arranged in each communicating cavity.
7. The pressure lever-based gravity energy storage system according to claim 1, wherein the air storage cavity is connected with the air compressor unit through an energy storage pipeline, and the air storage cavity is connected with the air expansion unit through an energy release pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210719709.1A CN115031154B (en) | 2022-06-23 | 2022-06-23 | Gravity type energy storage system based on pressure lever |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210719709.1A CN115031154B (en) | 2022-06-23 | 2022-06-23 | Gravity type energy storage system based on pressure lever |
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| Publication Number | Publication Date |
|---|---|
| CN115031154A CN115031154A (en) | 2022-09-09 |
| CN115031154B true CN115031154B (en) | 2024-02-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210719709.1A Active CN115031154B (en) | 2022-06-23 | 2022-06-23 | Gravity type energy storage system based on pressure lever |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203836565U (en) * | 2014-04-15 | 2014-09-17 | 太原融盛科技有限公司 | Piston cylinder type compressed air energy storage device |
| CN110857751A (en) * | 2018-08-23 | 2020-03-03 | 中国石油天然气股份有限公司 | Gas storage device |
| CN213452833U (en) * | 2021-03-08 | 2021-06-15 | 清华大学 | Gravity type gas storage |
| WO2021143349A1 (en) * | 2020-01-14 | 2021-07-22 | 中国华能集团有限公司 | Gravity-compressed air energy storage system and working method therefor |
| CN113550867A (en) * | 2020-04-23 | 2021-10-26 | 年启贺 | Gravity compressed air energy storage speed stabilizing device |
-
2022
- 2022-06-23 CN CN202210719709.1A patent/CN115031154B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203836565U (en) * | 2014-04-15 | 2014-09-17 | 太原融盛科技有限公司 | Piston cylinder type compressed air energy storage device |
| CN110857751A (en) * | 2018-08-23 | 2020-03-03 | 中国石油天然气股份有限公司 | Gas storage device |
| WO2021143349A1 (en) * | 2020-01-14 | 2021-07-22 | 中国华能集团有限公司 | Gravity-compressed air energy storage system and working method therefor |
| CN113550867A (en) * | 2020-04-23 | 2021-10-26 | 年启贺 | Gravity compressed air energy storage speed stabilizing device |
| CN213452833U (en) * | 2021-03-08 | 2021-06-15 | 清华大学 | Gravity type gas storage |
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| Publication number | Publication date |
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| CN115031154A (en) | 2022-09-09 |
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