CN217813863U

CN217813863U - High leakproofness gravity compressed air energy memory

Info

Publication number: CN217813863U
Application number: CN202221421424.1U
Authority: CN
Inventors: 文军; 赵瀚辰; 李阳; 杨成龙; 姬海民; 宋晓辉; 姚明宇; 梁舒婷; 黄晓明
Original assignee: Xian Thermal Power Research Institute Co Ltd
Current assignee: Xian Thermal Power Research Institute Co Ltd
Priority date: 2022-06-08
Filing date: 2022-06-08
Publication date: 2022-11-15
Anticipated expiration: 2032-06-08

Abstract

The utility model provides a high leakproofness gravity compressed air energy memory, including gravity piece, shaft, seal membrane, the gravity piece includes the pressure-bearing cylinder, the pressure-bearing cylinder is enclosed for the platelike structure that has compactness, fill in the pressure-bearing cylinder and be filled with the filler; the gravity block is movably inserted in the vertical shaft; the sealing membrane is sleeved outside the pressure bearing barrel, and the sealing membrane is in sealing connection with the vertical shaft and the pressure bearing barrel, so that an air storage cavity is defined by the pressure bearing barrel, the sealing membrane and a space of the vertical shaft below the sealing membrane. Through the pressure-bearing cylinder that the plate structure that sets up to have the lethality encloses, can improve the gas tightness, prevent gas leakage, and then guarantee the sealing characteristic of gas storage chamber, can bear higher pressure, promote the energy density of system's energy storage.

Description

High leakproofness gravity compressed air energy memory

Technical Field

The utility model relates to an electric energy storage technical field especially relates to a high leakproofness gravity compressed air energy memory.

Background

Gravity compressed air energy storage is through setting up the gravity piece in the shaft, through seal membrane sealing connection between gravity piece and the shaft, form sealed gas storage chamber in the shaft that is located gravity piece below, a storage for high-pressure gas, let in the gas storage chamber after compressing the air and store the gravitational potential energy that the energy part of compressed air turns into the gravity piece, the compressed air's of storage pressure is great, current gravity piece is the concrete piece that forms usually using the concrete placement, high-pressure gas leaks in passing through the clearance of concrete, the condition of gas leakage appears.

SUMMERY OF THE UTILITY MODEL

The present invention aims at solving one of the technical problems in the related art at least to a certain extent.

Therefore, the utility model aims to provide a high leakproofness gravity compressed air energy memory is provided, through setting up the pressure-bearing section of thick bamboo that the platelike structure that has the lethality encloses, can improve the gas tightness, prevent gas leakage, and then guarantee the sealing characteristic of gas storage chamber, can bear higher pressure, the energy density of lift system energy storage.

In order to achieve the above object, the utility model provides a high leakproofness gravity compressed air energy memory, include:

the gravity block comprises a pressure bearing cylinder, the pressure bearing cylinder is surrounded by a compact plate-shaped structure, and fillers are filled in the pressure bearing cylinder;

the gravity block is movably inserted in the vertical shaft;

the sealing film is sleeved outside the pressure bearing barrel and is in sealing connection with the vertical shaft and the pressure bearing barrel, so that an air storage cavity is formed by the pressure bearing barrel, the sealing film and the space of the vertical shaft below the sealing film in a surrounding mode.

Further, the filler is sand.

Further, the plate-like structure having compactness is a steel plate.

Further, be provided with the steel lining on the shaft inner wall, the seal membrane is connected on the steel lining, the seal membrane with sealing connection between the steel lining.

Furthermore, a plurality of support rings are arranged on the inner wall of the pressure-bearing cylinder along the axial direction, and the support rings and the pressure-bearing cylinder are coaxially arranged.

Further, the bottom of the pressure bearing cylinder is of a conical structure.

Further, still include: the air compressor unit is connected with the air storage cavity and is used for compressing air and then introducing the compressed air into the air storage cavity for storage;

the air expansion unit is connected with the air storage cavity so as to lead the compressed air stored in the air storage cavity to be led into the air expansion unit to do work

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 above 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 view of a high-sealing gravity compressed air energy storage device according to an embodiment of the present invention;

fig. 2 is a schematic partial structure view of fig. 1 in another embodiment of the present invention;

in the figure, 1, a shaft; 11. a steel lining; 2. a gravity block; 21. a pressure-bearing cylinder; 22. a filler; 23. a support ring; 24. a support ring; 3. a sealing film; 4. a gas storage cavity; 5. an air compressor unit; 6. an air expander set; 7. and locking the platform.

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 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 drawings are exemplary only for the purpose of explaining the present invention, and should not 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.

Fig. 1 is a schematic structural view of a high-sealing gravity compressed air energy storage device according to an embodiment of the present invention.

Referring to fig. 1 and 2, a high leakproofness gravity compressed air energy memory, including shaft 1, gravity piece 2, seal membrane 3, the activity of gravity piece 2 is pegged graft in shaft 1, gravity piece 2 includes bearing cylinder 21, bearing cylinder 21 encloses for the platelike structure that has the compactness, it has filler 22 to fill in bearing cylinder 21, seal membrane 3 cover is established and is held the pressure cylinder 21 outsidely, sealing connection between seal membrane 3 and shaft 1 and the bearing cylinder 21 for bearing cylinder 21, seal membrane 3 and shaft are located and enclose into gas storage chamber 4 between the space of seal membrane 3 below.

It can be understood that, the gravity piece 2 generally all is prepared with the concrete, leaks in the clearance that highly-compressed air passes through the concrete under the highly-compressed air effect, and the condition of leaking gas appears, through setting up the pressure-bearing section of thick bamboo 21 that the platelike structure that has compactness encloses, fills filler 22 in pressure-bearing section of thick bamboo 21, can improve the gas tightness, prevents to leak gas, and then guarantees the sealing characteristic of gas storage cavity 4, can bear higher pressure, the energy density of the energy storage of lift system.

In addition, it should be noted that, the pressure bearing cylinder 21 is set to be of a cylindrical structure, so that the weight of the pressure bearing cylinder 21 can be reduced, the hoisting is convenient, the filler 22 is filled in the pressure bearing cylinder 21 after the hoisting, the filler 22 can provide partial gravity, the convenient hoisting is guaranteed, meanwhile, the space can be reasonably utilized to increase the integral gravity of the pressure bearing cylinder 21, and the storage capacity of compressed air is improved.

In some embodiments, the filler 22 is sand, through which some gravity can be provided.

In some embodiments, the plate-shaped structure with compactness is a steel plate, and the pressure-bearing cylinder 21 surrounded by the steel plate has stronger compactness, so that the compressed air in the air storage cavity 4 cannot leak from the steel plate body.

It can be understood that seal membrane 3 is current structure, and seal membrane 3 is the structure of tube-shape, forms the inner ring and the outer loop structure that the top links to each other after turning over tube-shape structure's top inwards, and the inner ring links to each other with a bearing section of thick bamboo 21 outer wall, and the outer loop links to each other with 1 inner wall of shaft to because the steel sheet surface is smooth, the outer wall of a bearing section of thick bamboo 21 that encloses is smooth, when making seal membrane 3 and bearing section of thick bamboo 21 outer wall connection, can improve sealing performance.

In some embodiments, a steel lining 11 is arranged on the inner wall of the shaft 1, the sealing membrane 3 is connected to the steel lining 11, the sealing membrane 3 is connected with the steel lining 11 in a sealing mode, and the inner wall of the steel lining 11 is a smooth surface, so that when the outer ring of the sealing membrane 3 is connected with the steel lining 11, the sealing performance can be improved.

In some embodiments, the bottom of the pressure-bearing cylinder 21 is a tapered structure, and by providing the tapered structure, it can be ensured that the bottom of the pressure-bearing cylinder 21 is not easily deformed under a high pressure.

In some embodiments, the inner wall of the pressure-bearing cylinder 21 is provided with a plurality of support rings 23 along the axial direction, the plurality of support rings 23 are arranged coaxially with the pressure-bearing cylinder 21, and since the pressure-bearing cylinder 21 has a cylindrical hollow structure, in order to improve the performance strength of the pressure-bearing cylinder 21, by arranging the plurality of support rings 23 on the inner wall of the pressure-bearing cylinder 21, the side wall of the pressure-bearing cylinder 21 can be supported by the support rings 23, so that the strength of the pressure-bearing cylinder 21 is improved, and the pressure-bearing cylinder 21 is prevented from being deformed.

In some embodiments, the air compressor unit 5 and the air expander unit 6 are further included, the air compressor unit 5 is connected with the air storage cavity 4 and used for introducing compressed air into the air storage cavity 4 for storage, and the air expander unit 6 is connected with the air storage cavity 4 so that the compressed air stored in the air storage cavity 4 is introduced into the air expander unit 6 to do work.

It can be understood that the surplus electric power drives the air compressor unit 5 to do work on the gas through the motor, the obtained compressed air is introduced into the air storage cavity 4, the gravity block 2 is driven to move upwards through the compressed air pressure, the compressed air storage is realized, and when the energy is released, the compressed air in the air storage cavity 4 does work on the air expander unit 6 to generate electricity, and the electric energy storage is realized.

In addition, it should be further noted that a support ring 24 is arranged on the outer wall of the top end of the pressure bearing cylinder 21, a locking platform 7 is arranged on the inner wall of the shaft 1, the pressure bearing cylinder 21 passes through the locking platform 7 and then is supported on the locking platform 7 through the support ring 24 when moving downwards to the lowest limit position, and at this time, a certain space is still left in the air storage chamber 4 below the pressure bearing cylinder 21, so that the pressure bearing cylinder 21 can be jacked up and moved upwards after sufficient compressed air is introduced into the air storage chamber 4.

It should be noted that, in the description of the present invention, the terms "first", "second", etc. 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 in 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 embodiments 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, 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 without departing from the scope of the present invention.

Claims

1. A high leakproofness gravity compressed air energy storage device, characterized by includes:

the gravity block is movably inserted in the vertical shaft;

2. The high-sealability gravity compressed air energy storage device of claim 1 wherein the filler is sand.

3. The high seal gravity compressed air energy storage device of claim 1, wherein the dense plate-like structure is a steel plate.

4. The high-sealing gravity compressed air energy storage device according to claim 1, wherein a steel lining is arranged on the inner wall of the vertical shaft, the sealing membrane is connected to the steel lining, and the sealing membrane is connected with the steel lining in a sealing mode.

5. The high-sealability gravity compressed air energy storage device of claim 1 wherein the bottom of the pressure bearing cylinder is of a conical structure.

6. The high-sealability gravity compressed air energy storage device according to claim 1, wherein a plurality of support rings are arranged on the inner wall of the pressure-bearing cylinder along the axial direction, and the plurality of support rings are arranged coaxially with the pressure-bearing cylinder.

7. The high-sealability gravity compressed air energy storage device of claim 1, further comprising:

the air compressor unit is connected with the air storage cavity and is used for compressing air and then introducing the compressed air into the air storage cavity for storage;

and the air expansion unit is connected with the air storage cavity so as to lead the compressed air stored in the air storage cavity to be introduced into the air expansion unit to do work.