CN215674720U - Constant-pressure energy storage system - Google Patents
Constant-pressure energy storage system Download PDFInfo
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- CN215674720U CN215674720U CN202120467830.0U CN202120467830U CN215674720U CN 215674720 U CN215674720 U CN 215674720U CN 202120467830 U CN202120467830 U CN 202120467830U CN 215674720 U CN215674720 U CN 215674720U
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- 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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- 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
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
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Abstract
The utility model relates to the technical field of energy storage equipment, in particular to a constant-voltage energy storage system, which comprises an energy storage unit, a constant-voltage energy storage network matrix unit and an energy release unit which are sequentially connected, wherein the constant-voltage energy storage network matrix unit is formed by connecting at least one constant-voltage energy storage grid in series or in parallel; each constant-voltage energy storage grid comprises at least one constant-voltage energy storage device, and the constant-voltage energy storage devices are connected in parallel or in series; each constant-pressure energy storage device comprises a constant-pressure balancing weight, a plunger and at least one working medium storage chamber, the working medium storage chamber is used for storing gas or liquid working medium after energy storage, and an inlet and an outlet on the working medium storage chamber are respectively connected to a main inlet pipe and a main outlet pipe of a constant-pressure energy storage grid through pipelines; the quantity and the working medium locker room phase-match of plunger, one end is located free reciprocating motion in the working medium locker room, and the other end upwards wears out the working medium locker room and links to each other with the constant voltage balancing weight. Through this system, can effectively solve the unstable problem of power output in the time domain scope.
Description
Technical Field
The utility model relates to the technical field of energy storage equipment, in particular to a constant-voltage energy storage system.
Background
The new energy mainly comprises nuclear energy, solar energy, wind energy, ocean energy, biomass energy, geothermal energy and the like, and the nuclear energy, the solar energy and the wind energy are the main energy with the largest reserve and the most development potential. Although new energy sources have the advantage of environmental protection, the new energy sources also have great disadvantages. Nuclear energy cannot be constructed and used in large scale due to safety and limited nuclear fuel resources, particularly, a good solution is not provided for non-nuclear treatment after decommissioning of a unit, the unit can be sealed by a stone coffin, a large amount of land is occupied, and nuclear leakage is concerned. Under the condition of the prior art, the most promising development is solar energy and wind energy, which are two kinds of energy sources which are developed most rapidly. However, renewable energy sources such as solar energy, wind energy and the like have the great defects that the renewable energy sources are influenced by weather and alternate day and night, are intermittent, the generated energy is difficult to accurately predict, the power output is unstable, and great challenges are caused to the stable operation of a power grid.
Disclosure of Invention
In order to solve the technical problems, the utility model provides a constant-voltage energy storage system which can effectively solve the problem of unstable solar energy and wind energy power output in a time domain range.
The utility model is realized by adopting the following technical scheme:
a constant voltage energy storage system, its characterized in that: the energy storage device comprises an energy storage unit, a constant-voltage energy storage network matrix unit and an energy release unit which are sequentially connected, wherein the constant-voltage energy storage network matrix unit is formed by connecting at least one constant-voltage energy storage grid in series or in parallel; each constant-voltage energy storage grid comprises at least one constant-voltage energy storage device, and the constant-voltage energy storage devices are connected in parallel or in series; each constant-pressure energy storage device comprises a constant-pressure balancing weight, a plunger and at least one working medium storage chamber, the working medium storage chamber is mainly used for storing gas or liquid working medium after energy storage, and an inlet and an outlet on the working medium storage chamber are respectively connected to a main inlet pipe and a main outlet pipe of a constant-pressure energy storage grid through pipelines; the quantity and the working medium locker room phase-match of plunger, one end is located in the working medium locker room and can free reciprocating motion, and the other end upwards wears out the working medium locker room and links to each other with the constant voltage balancing weight.
The plunger piston and the wall surface of the working medium storage chamber are sealed by a sealing structure; and/or a sealed air storage bag is arranged in the working medium storage chamber and is sealed by the air storage bag.
The energy storage unit comprises an air compression unit, the air compression unit comprises a driving motor and an air compressor, and the driving motor is used for driving the air compressor to compress air and converting electric energy into potential energy to be stored in the compressed air.
Valves are arranged on the energy storage unit, the inlet and the outlet of the energy release device, and the inlet and the outlet main pipes of the constant-pressure energy storage grid.
The energy release unit comprises an air turbine power generation unit comprising an air turbine and a generator; the compressed air expands in the air turbine to do work, the generator is driven to generate electricity, and the generated electricity is used for feeding into a power grid.
Compared with the prior art, the utility model has the beneficial effects that:
1. the storage pressure of the constant-pressure energy storage device is adjusted by the weight of the constant-pressure balancing weight and the plunger, when the cross section area of the working medium storage chamber is fixed and the weight of the constant-pressure balancing weight and the plunger is fixed, the stored working medium pressure is kept constant, and the device can be used for storing gas or liquid working medium. Because the plunger can freely reciprocate in the working medium storage chamber, the working medium storage chamber can also keep stable pressure even when filling and releasing the working medium. Therefore, the constant-pressure storage device can store energy by storing compressed gas or high-pressure liquid, and the device can ensure that the pressure is kept stable in the charging and discharging processes, so that the system runs very stably, and the control requirement on the energy release unit is reduced. Through research, the energy released by the constant pressure system is 3 times of that of the constant volume system of the compressed air energy storage system with the same pressure and volume.
In the constant-voltage energy storage system, each constant-voltage energy storage grid matrix unit is formed by connecting at least one constant-voltage energy storage grid in series or in parallel; each constant-voltage energy storage grid comprises at least one constant-voltage energy storage device, and the constant-voltage energy storage devices are connected in parallel or in series. Due to the adoption of the grid matrix structure, the construction is very convenient, one constant-voltage storage device can be immediately put into use after being constructed, and the constant-voltage storage grid matrix can be used for expanding the energy storage capacity very conveniently. The constant-pressure energy storage system is particularly suitable for being used in a large-scale system, one large-scale system is divided into a plurality of small systems, the small systems can be mutually independent and do not influence each other, and later-stage overhaul and equipment maintenance are facilitated.
The system that this application will protect also includes and merges into a unit energy storage unit and energy release unit, and equipment can just, reverse conversion to hold, can switch over each other of releasing the function, under this kind of using-way, then only open an exit can in every working medium locker room.
2. The plunger is sealed with the wall surface of the working medium storage chamber by adopting a sealing structure and/or a sealed gas storage bag is arranged in the working medium storage chamber, so that the sealing between the working medium storage chamber and the outside is achieved, and the working medium is prevented from leaking.
3. The inlet and outlet of the energy storage unit and the energy release device and the inlet and outlet main pipes and the outlet main pipes of the constant-pressure energy storage grid are provided with valves, so that independent operation can be kept, the valves are not influenced mutually, when a fault occurs, the valves are closed, the fault constant-pressure energy storage device is isolated, and the valves can be maintained independently without influencing the normal work of other constant-pressure energy storage devices, so that the operation control and the maintenance of later-stage equipment are facilitated, and the flexibility of system operation is greatly improved.
4. The energy storage unit includes an air compression unit including a drive motor and an air compressor. The energy release unit includes an air turbine power generation unit including an air turbine and a generator. The driving electric energy of the driving motor is from surplus electric power of a power grid or electric energy generated by a new energy power station, drives the compressor to compress air, and converts the electric energy into potential energy to be stored and compressed in the air; when the power load of the power grid is insufficient, electric power is generated, and the peak clipping and valley leveling effects are achieved for the operation of the power grid. And absorbing unstable electric power of new energy, converting the unstable electric power into stable electric power, and transmitting the stable electric power into a power grid. As long as the storage capacity of the constant-voltage energy storage device is enough, the energy storage system can work in an energy storage state and an energy release state independently, the energy storage and the energy release can also run simultaneously, and the system is very flexible to run. And the pressure of the system is kept constant all the time in the working process, so that the requirements on the design and operation regulation of the air turbine are reduced.
5. The photovoltaic power generation device is arranged in a mixed mode with a photovoltaic panel or/and a fan, power generation is achieved through renewable energy, and consumption of fossil energy can be effectively reduced. The solar photovoltaic panel can be arranged on the constant-voltage counterweight module, so that land resources can be utilized to the maximum extent; the fan and the constant-voltage energy storage grid are arranged at intervals, so that electric energy generated by the unstable new energy is stored in the constant-voltage energy storage grid matrix nearby. The solar photovoltaic panel and the fan do not have land conflict with the constant-voltage energy storage system, and are complementary, so that the land utilization value is improved.
6. The system does not consume any water, fossil energy and other resources, and does not generate any waste water, waste gas and waste solids. Some areas with severe environment, such as deserts, are not suitable for living, but the solar energy resources and the wind power resources in the areas are abundant, so that the areas are very suitable for building solar power stations and wind power stations on a large scale. The system is particularly suitable for developing wide and low-value gobi and desert lands.
Drawings
The utility model will be described in further detail with reference to the following description taken in conjunction with the accompanying drawings and detailed description, in which:
FIG. 1 is a schematic structural diagram of a constant-voltage energy storage device according to the present invention;
FIG. 2 is a schematic diagram of a constant voltage energy storage network matrix unit according to the present invention;
the labels in the figure are:
1. constant voltage energy storage net, 2, constant voltage balancing weight, 3, plunger, 4, working medium locker room, 5, import, 6, export, 7, constant voltage energy memory, 8, advance female pipe, 9, play female pipe.
Detailed Description
Example 1
As a basic implementation mode of the constant-voltage energy storage system, the constant-voltage energy storage system comprises an energy storage unit, a constant-voltage energy storage network matrix unit and an energy release unit which are sequentially connected. The constant-voltage energy storage network matrix unit is composed of at least one constant-voltage energy storage grid 1. Each constant voltage energy storage grid 1 comprises at least one constant voltage energy storage device 7. Every constant voltage energy memory 7 includes constant voltage balancing weight 2, plunger 3 and at least one working medium locker room 4, working medium locker room 4 is used for storing gas or liquid working medium after the energy storage, and import 5 and export 6 on the working medium locker room 4 are respectively through pipe connection to the female pipe 8 of advancing of constant voltage energy storage net 1 with go out on female pipe 9. The quantity and the working medium storage chamber 4 phase-matchs of plunger 3, and one end is located 4 internal energy free reciprocating motion in the working medium storage chamber, and the other end upwards pierces out the matter storage chamber and links to each other with constant voltage balancing weight 2.
Example 2
As a preferred embodiment of the present invention, the present invention includes a constant-voltage energy storage system, which includes an energy storage unit, a constant-voltage energy storage network matrix unit and an energy release unit connected in sequence. The constant-voltage energy storage network matrix unit is formed by connecting a plurality of constant-voltage energy storage grids 1 in series and parallel; each constant-voltage energy storage grid 1 comprises a plurality of constant-voltage energy storage devices 7, and the constant-voltage energy storage devices 7 are arranged in series and parallel. Every constant voltage energy memory 7 includes constant voltage balancing weight 2, plunger 3 and at least one working medium locker room 4, working medium locker room 4 is used for storing gas or liquid working medium after the energy storage, and import 5 and export 6 on the working medium locker room 4 are respectively through pipe connection to the female pipe 8 of advancing of constant voltage energy storage net 1 with go out on female pipe 9. The quantity and the working medium of plunger 3 are deposited and are put in room 4 phase-matchedly, and one end is located working medium and deposits in room 4, can free reciprocating motion, and the other end upwards pierces out the matter and deposits in the room and link to each other with constant voltage balancing weight 2.
The plunger 3 and the wall surface of the working medium storage chamber 4 are sealed by a sealing structure, the sealing structure can be arranged at the head part of the plunger 3, and the sealing structure is an existing sealing piece.
The energy storage unit includes an air compression unit including a drive motor and an air compressor. The surplus electric power of the power grid drives the air compressor to compress the air to a preset pressure through the driving motor, the electric energy is converted into potential energy to be stored in the compressed air and stored in the working medium storage chamber 4, and then the energy storage is completed; the high-pressure air is led out, and the air turbine expands to do work to drive the generator to generate electricity, and the electricity is fed into a power grid to finish energy release. As long as the storage capacity is enough, the energy storage system can work in an energy storage state or an energy release state independently, and can also run simultaneously by storing energy and releasing energy, so that the system is very flexible to run. The pressure of the storage unit is kept constant all the time in the working process, and the requirements on design and operation regulation of the air turbine are reduced.
Example 3
As another preferred embodiment of the present invention, the present invention includes a constant voltage energy storage system, which includes an energy storage unit, a constant voltage energy storage network matrix unit and an energy release unit connected in sequence. The constant-voltage energy storage network matrix unit is formed by connecting a plurality of constant-voltage energy storage grids 1 in series and parallel; each constant-voltage energy storage grid 1 comprises a plurality of constant-voltage energy storage devices 7, and the constant-voltage energy storage devices 7 are arranged in series and parallel. Every constant voltage energy memory 7 includes constant voltage balancing weight 2, plunger 3 and at least one working medium locker room 4, working medium locker room 4 is used for storing the gas after the energy storage, and import 5 and export 6 on the working medium locker room 4 are connected to female pipe 8 of advancing and go out of constant voltage energy storage net 1 through the pipeline respectively on the female pipe 9. The quantity and the working medium storage chamber 4 phase-matchs of plunger 3, and one end is located 4 internal energy free reciprocating motion in the working medium storage chamber, and the other end upwards pierces out the matter storage chamber and links to each other with constant voltage balancing weight 2.
And a closed gas storage bag is arranged in the working medium storage chamber 4 and can expand and contract so as to seal the working medium storage chamber 4 with the outside.
The energy storage unit comprises an air compression unit, the air compression unit comprises a driving motor and an air compressor, and further comprises a photovoltaic panel or a fan. The energy release unit includes an air turbine power generation unit including an air turbine and a generator.
The driving electric energy of the driving motor is electric energy generated by renewable energy sources such as solar energy or wind energy, such as a photovoltaic panel or a fan, and the like, and the air compressor is driven by the driving motor to compress air to a preset pressure and store the air into the constant-pressure energy storage device 7, namely, the energy storage is completed. The compressed air is led out, and the air turbine expands to do work to drive the generator to generate electricity, and the electricity is fed into a power grid to finish energy release. The energy storage system is used as a buffer, so that stable power can be output to a power grid, and the problem that renewable energy is unstable in a time domain range is solved.
In the process, although compressed air is stored in the storage unit, the electric energy is substantially converted into the gravitational potential energy of the constant-pressure balancing weight 2, the sun rises and falls, the solar energy in the daytime and surplus electric power generated by other renewable energy sources such as wind energy and the like drive the air compressor, the air is filled into a large constant-pressure energy storage system consisting of the constant-pressure energy storage device 7, and the constant-pressure balancing weight 2 slowly rises along with the filling of the compressed air; at night, the solar power station stops generating electricity, compressed air is led out for generating electricity, and the constant-pressure balancing weight 2 slowly descends.
Example 4
As a best mode for implementing the utility model, the utility model comprises a constant-voltage energy storage system, which comprises an energy storage unit, a constant-voltage energy storage network matrix unit and an energy release unit which are connected in sequence. The constant-voltage energy storage network matrix unit is formed by connecting a plurality of constant-voltage energy storage grids 1 in series and parallel; each constant-voltage energy storage grid 1 comprises one or more constant-voltage energy storage devices 7, and the constant-voltage energy storage devices 7 are arranged in series and parallel.
Referring to the attached drawing 1 of the specification, each constant-pressure energy storage device 7 comprises a constant-pressure balancing weight 2, a plunger 3 and two or more working medium storage chambers 4, the working medium storage chambers 4 are used for storing gas after energy storage, and an inlet 5 and an outlet 6 on each working medium storage chamber 4 are connected to a main inlet pipe 8 and a main outlet pipe 9 of a constant-pressure energy storage grid 1 through pipelines respectively. The quantity and the working medium storage chamber 4 phase-matchs of plunger 3, and one end is located 4 internal energy free reciprocating motion in the working medium storage chamber, and the other end upwards pierces out the matter storage chamber and links to each other with constant voltage balancing weight 2.
The energy storage unit comprises an air compression unit, the air compression unit comprises a driving motor and an air compressor, and further comprises a photovoltaic panel and a fan. The energy release unit includes an air turbine power generation unit including an air turbine and a generator.
Valves are arranged on the energy storage unit, the inlet and outlet 6 of the energy release device and the inlet and outlet main pipes 8 and 9 of the constant-pressure energy storage grid 1, so that the operation allocation, isolation and protection of the energy storage system are facilitated, and the maintenance and overhaul of the energy storage system are facilitated.
The utility model is particularly suitable for being built in desert, and the solar energy resource and the wind power resource in the desert area are very rich, thus being suitable for building solar power stations and wind power stations in large scale. The two have no land conflict with the constant-voltage energy storage system, and are complementary: in order to save land resources, a solar photovoltaic panel can be arranged on the constant-pressure balancing weight 2; the fan and the constant-voltage energy storage grid 1 are arranged at intervals in a mixed mode, so that electric energy generated by unstable new energy can be stored in a constant-voltage storage grid matrix nearby and converted into stable energy to be output.
The working medium storage chamber 4 can be constructed by steel and/or reinforced concrete, can be designed according to the requirements in shape, and can be of an underground structure, a semi-buried structure or a ground structure. The height of the individual working medium storage chambers 4 is from tens to tens of meters, even hundreds of meters. The plunger 3 is constructed by steel and/or reinforced concrete, the working medium storage chamber 4 is sealed and separated from the outside atmosphere, and the head of the plunger 3 is sealed with the wall surface of the storage chamber by adopting a sealing structure; or an air bag which can be expanded and contracted is arranged in the working medium storage chamber 4 so as to seal the storage chamber and the outside. The plunger 3 may also provide a counterweight weight. The preset pressure of the working medium storage chamber 4 is mainly provided by the constant-pressure balancing weight 2, the weight of the balancing weight is determined by the cross-sectional area of the storage chamber and the preset storage pressure, the storage chamber is built by steel and/or reinforced concrete, and then the local materials are filled with soil, sand, stone and the like until the required weight of the balancing weight is reached, and the weight of the balancing weight is different from dozens of tons to hundreds of tons.
The utility model can not only operate independently, but also operate jointly with other thermodynamic systems. For example, a coupled operation system is formed by the air energy storage system and the boiler, so that the energy storage efficiency of the air energy storage system can be greatly improved; in addition, the air energy storage system can be coupled with other industrial furnaces for operation, high-temperature compressed air can be used for heating inlet air of the furnaces, waste heat of the furnaces can be used for backheating compressed air, waste heat of tail gas discharged by tail gas of the furnaces is fully recovered, and the efficiency of the air energy storage system is powerfully improved.
In summary, after reading the present disclosure, those skilled in the art should make various other modifications without creative efforts according to the technical solutions and concepts of the present disclosure, which are within the protection scope of the present disclosure.
Claims (10)
1. A constant voltage energy storage system, its characterized in that: the energy storage device comprises an energy storage unit, a constant-voltage energy storage network matrix unit and an energy release unit which are sequentially connected, wherein the constant-voltage energy storage network matrix unit is formed by connecting at least one constant-voltage energy storage grid (1) in series or in parallel; each constant-voltage energy storage grid (1) comprises at least one constant-voltage energy storage device (7), and the constant-voltage energy storage devices (7) are connected in parallel or in series; each constant-pressure energy storage device (7) comprises a constant-pressure balancing weight (2), a plunger (3) and at least one working medium storage chamber (4), the working medium storage chamber (4) is used for storing gas or liquid working medium after energy storage, and an inlet (5) and an outlet (6) on the working medium storage chamber (4) are respectively connected to a main inlet pipe (8) and a main outlet pipe (9) of the constant-pressure energy storage grid (1) through pipelines; the quantity and the working medium storage chamber (4) phase-match of plunger (3), one end is located working medium storage chamber (4) and can free reciprocating motion, and the other end upwards wears out working medium storage chamber (4) and links to each other with constant voltage balancing weight (2).
2. The constant pressure energy storage system according to claim 1, wherein: and the plunger (3) and the wall surface of the working medium storage chamber (4) are sealed by adopting a sealing structure.
3. The constant pressure energy storage system according to claim 1, wherein: and a closed gas storage bag is arranged in the working medium storage chamber (4).
4. A constant pressure energy storage system as claimed in claim 2 or 3, wherein: the energy storage unit comprises an air compression unit, the air compression unit comprises a driving motor and an air compressor, and the driving motor is used for driving the air compressor to compress air and converting electric energy into potential energy to be stored in the compressed air.
5. The constant pressure energy storage system according to claim 4, wherein: valves are arranged on the energy storage unit, the inlet and the outlet of the energy release device, and the inlet main pipe (8) and the outlet main pipe (9) of the constant-pressure energy storage grid (1).
6. The constant pressure energy storage system according to claim 1 or 5, wherein: the energy release unit comprises an air turbine power generation unit comprising an air turbine and a generator; the compressed air expands in the air turbine to work, driving the generator to generate electricity, which is used to feed the grid.
7. The constant pressure energy storage system according to claim 6, wherein: the solar photovoltaic panel also comprises a photovoltaic panel or/and a fan.
8. The constant pressure energy storage system according to claim 7, wherein: the photovoltaic panel is fixed on the constant-pressure balancing weight (2).
9. The constant pressure energy storage system according to claim 7, wherein: the fan and the constant-pressure energy storage grid (1) are arranged at intervals.
10. The constant pressure energy storage system according to claim 1, wherein: the constant-pressure energy storage device (7) can be provided with only one inlet and outlet.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114811397A (en) * | 2022-06-08 | 2022-07-29 | 西安热工研究院有限公司 | A gas storage system for extensive gravity compressed air energy storage |
| CN114962973A (en) * | 2022-06-08 | 2022-08-30 | 西安热工研究院有限公司 | Gravity compressed air energy storage system based on overground gravity block |
| CN115094953A (en) * | 2022-07-07 | 2022-09-23 | 西安热工研究院有限公司 | Vertical shaft of gravity compressed air energy storage system for unconsolidated formation and construction method |
| CN115199935A (en) * | 2022-07-07 | 2022-10-18 | 西安热工研究院有限公司 | Gravity compressed air storage system based on skirt-type sealing membrane |
| CN115199934A (en) * | 2022-07-07 | 2022-10-18 | 西安热工研究院有限公司 | Gas storage system capable of realizing multistage sealing and graded locking of gravity briquetting |
| CN115218112A (en) * | 2022-07-07 | 2022-10-21 | 西安热工研究院有限公司 | Vertical shaft of gravity compressed air energy storage system for unconsolidated formation and energy storage system |
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2021
- 2021-03-04 CN CN202120467830.0U patent/CN215674720U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114811397A (en) * | 2022-06-08 | 2022-07-29 | 西安热工研究院有限公司 | A gas storage system for extensive gravity compressed air energy storage |
| CN114962973A (en) * | 2022-06-08 | 2022-08-30 | 西安热工研究院有限公司 | Gravity compressed air energy storage system based on overground gravity block |
| CN115094953A (en) * | 2022-07-07 | 2022-09-23 | 西安热工研究院有限公司 | Vertical shaft of gravity compressed air energy storage system for unconsolidated formation and construction method |
| CN115199935A (en) * | 2022-07-07 | 2022-10-18 | 西安热工研究院有限公司 | Gravity compressed air storage system based on skirt-type sealing membrane |
| CN115199934A (en) * | 2022-07-07 | 2022-10-18 | 西安热工研究院有限公司 | Gas storage system capable of realizing multistage sealing and graded locking of gravity briquetting |
| CN115218112A (en) * | 2022-07-07 | 2022-10-21 | 西安热工研究院有限公司 | Vertical shaft of gravity compressed air energy storage system for unconsolidated formation and energy storage system |
| CN115094953B (en) * | 2022-07-07 | 2024-02-06 | 西安热工研究院有限公司 | Vertical shaft of gravity compressed air energy storage system for loose stratum and construction method |
| CN115199934B (en) * | 2022-07-07 | 2024-04-05 | 西安热工研究院有限公司 | Gas storage system capable of realizing multistage sealing and stage locking of gravity pressing blocks |
| CN115218112B (en) * | 2022-07-07 | 2024-06-11 | 西安热工研究院有限公司 | Vertical shaft of gravity compressed air energy storage system for unconsolidated formation and energy storage system |
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