阅读说明：本技术 重力钢球位移式自动储能电站及工作方法 (Gravity steel ball displacement type automatic energy storage power station and working method ) 是由 武忠全 李俊菀 龙国军 童全峰 于 2021-09-17 设计创作，主要内容包括：本发明公开了一种重力钢球位移式自动储能电站及工作方法,该电站包括重力钢球,架设于山坡上的塔架、提球网架、承重钢索和高、低位储球场,通过传动系统带动的发电机等。利用峰谷电价差异,在低电价时利用电能把重力钢球通过提球网架提升至高位储球场中,在用电高峰期间,再把重力钢球从高位落下,钢球落下时带动发电机转动产生电力,能量在重力钢球的势能和电能之间转换,实现富裕电能的储存目的。由于钢球结实可靠,结构稳定,上下传送和储存时无重量损耗,能源转化效率比目前在建的抽水储能、电池储能、压缩空气储能、飞轮储能和电解制氢储能效率都要高的多,建设费用和场地要求也较低,适合工业模块化建设和运行,符合我国储能要求和国情资源。(The invention discloses a gravity steel ball displacement type automatic energy storage power station and a working method thereof. The gravity steel ball is lifted to a high-position ball storage field through a ball lifting net rack by utilizing the difference of peak-valley electricity prices and utilizing electric energy during low electricity prices, and then falls from the high position during the electricity utilization peak period, the steel ball drives a generator to rotate to generate electric power when falling, and the energy is converted between the potential energy and the electric energy of the gravity steel ball, so that the purpose of storing abundant electric energy is realized. The steel ball is firm and reliable, the structure is stable, no weight loss is caused during vertical transmission and storage, the energy conversion efficiency is much higher than that of the existing pumping energy storage, battery energy storage, compressed air energy storage, flywheel energy storage and electrolytic hydrogen production energy storage, the construction cost and the site requirement are lower, and the steel ball is suitable for industrial modular construction and operation and meets the energy storage requirement and national situation resources of China.)

1. The utility model provides an automatic energy storage power station of gravity steel ball displacement formula which characterized in that: the device comprises a tower frame (2) established on a hillside (1), a bearing steel cable (4) on the tower frame (2), a ball lifting net rack (3) fixed on the bearing steel cable (4), a motor (5) driving the bearing steel cable (4) to move, a generator (6) driven by the bearing steel cable (4) to generate electricity, a high-position ball storage court (7) established at a high position, a low-position ball storage court (8) storing steel balls when the steel balls fall down, ball unloading ports (9) and ball lifting ports (10) of the ball storage court are established in the high-position ball storage court (7) and the low-position ball storage court (8), the ground of the high-position ball storage court (7) and the low-position ball storage court (8) have certain gradient and strength, the ramp is established to be a loop-shaped ramp (11), and a gravity steel ball (12) automatically rolls from the ball unloading ports to the ball lifting ports of the ball storage court by means of the gravity of the self, so as to realize automatic cycle operation; the ball lifting ports (10) of the storage court are all provided with touch type ball lifting gates (14), so that only one gravity steel ball (12) can be discharged each time.

2. The gravity steel ball displacement type automatic energy storage power station of claim 1, characterized in that: elevation fall is hundreds of meters between high-order storage court (7) and low-order storage court (8), high-order storage court (7) and low-order storage court (8) side have been built and have been stored up court protection network or reinforcement enclosure (13), in order to realize that gravity steel ball (12) are automatic to be carried and playback, high-order storage court (7) and low-order storage court (8) ground have certain slope and intensity, the ramp construction is looped back shape ramp (11), gravity steel ball (12) can rely on self gravity to unload the ball mouth from storage court automatically and roll to storage court and carry the ball mouth, realize the automatic cycle operation.

3. The gravity steel ball displacement type automatic energy storage power station of claim 1, characterized in that: the ball lifting net rack (3) is fixed on the bearing steel cable (4) through a rope clip (36), and the ball lifting net rack (3) can run up and down in the positive and negative directions by the bearing steel cable (4) to realize energy storage or power generation; a bottom panel of the ball lifting net rack (3) is provided with a rigid seesaw type base (32), the seesaw type base (32) is of an inverted T-shaped bucket structure, two sides of the bottom of the ball lifting net rack (3) are welded with a sleeve ring A (33), a rotating shaft of the seesaw type base (32) penetrates through the sleeve ring A (33), a sleeve ring B (34) is welded on the back of the rear portion of the ball lifting net rack (3), upper and lower sliding rods of the seesaw type base (32) penetrate through the sleeve ring B (34), the sleeve ring A (33) is used for enabling the seesaw type base (32) to rotate when balls are lifted and unloaded, and the sleeve ring B (34) is used for enabling the seesaw type base (32) to move up and down when the balls are lifted and unloaded.

4. The gravity steel ball displacement type automatic energy storage power station of claim 1, characterized in that: ball gate lock (14) are carried to touching formula is spring contraction formula gate lock, including door side enclosure (21), be connected with gate lock catch bar (25) through rotating lantern ring (27) and pullback spring (24) on door side enclosure (21), gate lock catch bar (25) can rotate around rotating lantern ring (27), rotate lantern ring (27) and fix on door side enclosure (21) through rotating lantern ring base (28), gate lock baffle (23) are connected on gate lock catch bar (25) through slip lantern ring (26), it has gate lock baffle to pass through groove (22) to open on door side enclosure (21).

5. The gravity steel ball displacement type automatic energy storage power station of claim 1, characterized in that: the gravity steel balls (12) are round solid steel balls with the weight of tonnage level, and the materials, the sizes and the weights of all the gravity steel balls are kept uniform.

6. The gravity steel ball displacement type automatic energy storage power station of claim 1, characterized in that: the ball lifting port (10) of the storage court is positioned at the bottom of the high-position ball storage court (7) and the low-position ball storage court (8) and is in an inverted trumpet shape which gradually shrinks, and the ball lifting port (10) of the storage court can only pass through one gravity steel ball at a time through shrinking; a tongue-shaped ball supporting platform is built at the front end of the ball discharging port (9) of the ball storage yard.

7. The gravity steel ball displacement type automatic energy storage power station of claim 1, characterized in that: and the bearing steel cable (4) is provided with a plurality of ball lifting net racks (3).

8. The method of operation of a gravity steel ball displacement type automatic energy storage power station of any of claims 1 to 7, characterized in that: the motor (5) drives the bearing steel cable (4) to move, so as to drive the ball lifting net rack (3) to move, the ball lifting net rack (3) completes ball loading and ball unloading actions from a high-position ball storage yard (7) and a low-position ball storage yard (8) through touch pushing in the operation process, the gravity steel ball (12) can automatically roll to a ball unloading port (9) of the ball storage yard and a ball lifting port (10) of the ball storage yard through the self weight and a touch ball lifting gate (14) without manual or mechanical carrying, and automation can be realized; the ball lifting net rack (3) moves along with the bearing steel cable (4) to lift the gravity steel ball (12) to the high-position ball storage field (7) to store potential energy of the steel ball, and the steel ball falls down from the high-position ball storage field (7) to drive the generator (6) to generate electricity during power consumption peak, so that energy release is realized, and the purposes of energy storage and energy conversion are achieved.

9. The method of operation of claim 8, wherein: when the gravity steel ball (12) enters the ball lifting net rack (3), the rear end of the seesaw base (32) is settled due to the downward pressing of the gravity, the front end of the seesaw base (32) is synchronously raised, the raised part plays a role in closing the ball lifting net rack (3), and the steel ball can be prevented from falling off from the security. When the ball lifting net rack (3) is lifted to the high-position ball storage field (7) to be unloaded, the bottom plate settled down at the rear end of the seesaw base (32) is jacked up by the tongue-shaped ball supporting platform of the ball unloading port (9) of the ball storage field to pour out the gravity steel ball (12), thereby realizing the dual functions of automatic ball unloading and safe lock during transportation.

10. The method of operation of claim 8, wherein: when the ball lifting net rack (3) enters the ball lifting opening (10) of the storage court, the ball lifting net rack (3) can push a gate pushing rod (25) of a touch type ball lifting gate (14) forwards, a gravity steel ball (12) is released by a gate baffle (23) which is pushed open, the ball lifting net rack (3) is separated from the touch type ball lifting gate (14) when continuously moving forwards and leaves, the touch type ball lifting gate (14) is pulled back to the original position by a pull-back spring (24), the gravity steel ball is clamped by the gate baffle (23), and a steel ball extracting process is completed.

Technical Field

The invention relates to the technical field of energy storage, in particular to a gravity steel ball displacement type automatic energy storage power station and a working method thereof.

Background

In recent years, clean energy such as wind energy, solar energy and the like is rapidly developed, energy enterprises are influenced by natural conditions and power consumption requirements, power output is unstable, peak power consumption is easily formed by users in the daytime, the power supply is larger than the demand at night, the power has to be abandoned to cause waste, the enterprise benefit is restricted and energy waste is caused, and the supply and demand contradiction can be better absorbed, relieved and balanced by an energy storage power station.

The conventional electric energy storage modes generally include water pumping energy storage, compressed air energy storage, storage battery energy storage, flywheel energy storage, electrolyzed water energy storage, super capacitor energy storage and the like. In the energy storage mode, the water pumping energy storage technology is the most mature and is more commonly applied. The water pumping energy storage mode has large energy storage capacity and quick response, but the construction of a water pumping energy storage power station needs special geographical conditions, such as suitable natural conditions of valleys, water sources, water level drops and the like, the construction period is long, the investment is large, the occupied area is wide, the energy conversion efficiency generally does not exceed 70 percent, and the efficiency of other energy storage modes is lower.

From the aspect of safety management, storage battery energy storage safety is listed as a specific fire-fighting object, the statistical result of fire accidents of global storage battery energy storage power stations shows, the occurrence of fire accidents is easy to cause due to battery cell defects and unreliable battery management systems, and environmental resources are wasted in battery post-processing.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention aims to provide the gravity steel ball displacement type automatic energy storage power station and the working method.

In order to achieve the purpose, the invention adopts the following technical scheme:

a gravity steel ball displacement type automatic energy storage power station comprises a tower frame 2 established on a hillside 1, a bearing steel rope 4 on the tower frame 2, a ball lifting net frame 3 fixed on the bearing steel rope 4, a motor 5 driving the bearing steel rope 4 to move, a generator 6 driven by the bearing steel rope 4 to generate electricity, a high ball storage field 7 established at a high position, a low ball storage field 8 established at a high position and used for storing steel balls when the steel balls fall down, ball unloading ports 9 and ball lifting ports 10 of the ball storage field are established in the high ball storage field 7 and the low ball storage field 8, a certain gradient and strength are formed on the ground of the high ball storage field 7 and the low ball storage field 8, a ramp 11 in a loop shape is established in the ramp, and a gravity steel ball 12 automatically rolls from the ball unloading ports of the ball storage field to the ball lifting ports of the ball storage field by means of self gravity to realize automatic cycle operation; the ball lifting ports 10 of the storage court are all provided with touch type ball lifting gates 14, so that only one gravity steel ball 12 can be discharged each time.

Elevation fall is hundreds of meters between high-order storage ball place 7 and the low level storage ball place 8, and storage ball place protection network or reinforcement enclosure 13 have been built to the side, in order to realize that gravity steel ball 12 is automatic to be carried and playback, and high-order storage ball place 7 and low level storage ball place 8 ground have certain slope and intensity, and the ramp construction is the shape ramp 11 of returning the ring, and gravity steel ball 12 can rely on self gravity to roll to storage ball place from storage ball place ball discharge mouth automatically and carry the ball mouth, realizes the automatic cycle operation.

The ball lifting net rack 3 is fixed on the bearing steel cable 4 through the rope clip 36, and the ball lifting net rack 3 can run up and down depending on the bearing steel cable 4 in the positive and negative directions to realize energy storage or power generation; the bottom panel of the ball lifting net rack 3 is provided with a rigid seesaw type base 32, the seesaw type base 32 is of an inverted T-shaped bucket structure, two sides of the bottom of the ball lifting net rack 3 are welded with lantern rings A33, the rotating shaft of the seesaw type base 32 penetrates through the lantern ring A (33), the back of the rear part of the ball lifting net rack 3 is welded with a lantern ring B34, the upper sliding rod and the lower sliding rod of the seesaw type base 32 penetrate through the lantern ring B (34), the lantern ring A33 is used for enabling the seesaw type base 32 to rotate when balls are lifted and unloaded, and the lantern ring B34 is used for enabling the seesaw type base 32 to move up and down when the balls are lifted and unloaded.

Ball floodgate 14 is carried to touching formula is spring contraction type floodgate, including door side enclosure 21, is connected with gate catch bar 25 through rotating lantern ring 27 and pullback spring 24 on the door side enclosure 21, and gate catch bar 25 can rotate around rotating lantern ring 27, and rotating lantern ring 27 is fixed on door side enclosure 21 through rotating lantern ring base 28, and gate baffle 23 is connected on gate catch bar 25 through slip lantern ring 26, and it has gate baffle to pass through groove 22 to open on the door side enclosure 21.

The gravity steel balls 12 are round solid steel balls with the weight at the tonnage level, and the materials, the sizes and the weights of all the gravity steel balls are kept uniform.

The ball lifting port 10 of the ball storage field is positioned at the bottom of the high-position ball storage field 7 and the low-position ball storage field 8 and is in an inverted trumpet shape which gradually shrinks, and the ball lifting port 10 of the ball storage field can only pass through one gravity steel ball at a time through shrinking; a tongue-shaped ball supporting platform is arranged at the front end of the ball discharging port 9 of the ball storage yard.

And a plurality of ball lifting net frames 3 are arranged on the bearing steel cable 4.

According to the working method of the gravity steel ball displacement type automatic energy storage power station, the motor 5 drives the bearing steel cable 4 to move so as to drive the ball lifting net rack 3 to move, the ball lifting net rack 3 finishes ball loading and ball unloading actions from the high-position ball storage field 7 and the low-position ball storage field 8 through touch pushing in the operation process, the gravity steel ball 12 can automatically roll to the ball storage field ball unloading port 9 and the ball storage field ball lifting port 10 from the ball lifting net rack through the self weight and the touch ball lifting gate 14, manual or mechanical carrying is not needed, and automation can be realized; the ball lifting net rack 3 moves along with the bearing steel cable 4 to lift the gravity steel ball 12 to the high-position ball storage field 7 to store the potential energy of the steel ball, and the steel ball falls down from the high-position ball storage field 7 to drive the generator 6 to generate electricity during the peak of power consumption, thereby realizing the release of energy and achieving the purposes of energy storage and energy conversion.

In the working method, when the gravity steel ball 12 enters the ball lifting net rack 3, the back end of the seesaw base 32 is settled due to the downward pressing of the gravity steel ball, the front end of the seesaw base 32 is synchronously raised, the raised part plays a role in closing the ball lifting net rack 3, and the steel ball can be prevented from falling off from the aspect of security. When the ball lifting net rack 3 is lifted to the high-position ball storage field 7 to unload balls, the bottom plate settled down at the rear end of the seesaw base 32 is jacked up by the tongue-shaped ball supporting platform of the ball unloading port 9 of the ball storage field to pour out the gravity steel balls 12, thereby realizing the dual functions of automatic ball unloading and safe locking during transportation.

According to the working method, when the ball lifting net rack 3 enters the ball lifting port 10 of the storage court, the ball lifting net rack 3 can push the gate pushing rod 25 of the touch type ball lifting gate 14 forwards, the gate baffle 23 is pushed open to release a gravity steel ball 12, the ball lifting net rack 3 is separated from the touch type ball lifting gate 14 when continuously moving forwards and leaving, the touch type ball lifting gate 14 is pulled back to the original position by the pull-back spring 24, and the gravity steel ball is clamped by the gate baffle 23, so that a steel ball extraction process is completed.

The invention has the advantages and positive effects that:

1) the gravity steel ball is lifted to a high-position ball storage field through the ball lifting net rack by utilizing the difference of peak-valley electricity prices and utilizing electric energy during low electricity prices, and then falls from the high position during the electricity utilization peak period, the gravity steel ball drives the generator to rotate to generate electric power when falling, and the energy is converted between the potential energy and the electric energy of the gravity steel ball, so that the purpose of storing abundant electric energy is realized. Because the steel ball is firm and reliable, the structure is stable, the weight is almost not lost when the steel ball is transferred and stored up and down, the energy conversion efficiency is much higher than the energy storage efficiency of pumping, battery, compressed air, flywheel and electrolytic hydrogen production, the construction cost and the site requirement are lower, the steel ball is very suitable for industrial modular construction and operation, and the steel ball meets the energy storage requirement and national resources of China.

2) The gravity steel ball displacement type energy storage power station has the advantages of mature mechanical equipment technology, low equipment construction cost, short period, wide field selection range, long equipment service life, no energy loss in a long-term storage period, convenience in equipment maintenance, strong reliability and capability of automatic operation. The energy conversion efficiency is far higher than that of a pumped storage power station. When the number of the steel balls is enough and the fall of the field is large, large energy storage can be realized.

3) The gravity steel ball displacement type energy storage power station has the advantages of high efficiency, low operation and maintenance cost, small occupied area, wide field requirement, no water resource evaporation and leakage loss, no safety risk to downstream residents after dam collapse, suitability for water-deficient and arid areas, easiness in factory modular production and popularization in the construction process of the energy storage power station, capability of realizing automatic operation and operation, and high commercial value and social value. Theoretically, the conversion efficiency between energy sources can reach more than 80%.

Drawings

Fig. 1 is a schematic diagram of a gravity steel ball displacement type automatic energy storage power station.

Fig. 2 is a schematic diagram of a structure of a ball lifting net frame.

FIG. 3 is a schematic view of a touch lift gate.

Fig. 4 is a schematic diagram of a loop type ball storage course.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in figures 1 and 4, the invention is a gravity displacement type automatic energy storage power station, which comprises a tower frame 2 established on a hillside 1, a bearing steel cable 4 on the tower frame 2, a ball lifting net frame 3 fixed on the bearing steel cable 4 by a rope clip 36, a motor 5 driving the bearing steel cable 4 to move, a generator 6 driven by the bearing steel cable 4 to generate electricity, a high ball storage field 7 established at a high position, a low ball storage field 8 storing steel balls when the steel balls fall, a ball storage field unloading port 9 and a ball storage field lifting port 10 established in the high ball storage field 7 and the low ball storage field 8, in order to realize automatic conveying and returning of the gravity steel balls 12, the ground of the high-position ball storage yard 7 and the ground of the low-position ball storage yard 8 have certain gradient and strength, the ramp is constructed into a loop-shaped ramp 11, and the gravity steel balls 12 can automatically roll from a ball discharging port of the ball storage yard to a ball lifting port of the ball storage yard by means of self gravity, so that automatic circulation operation is realized. The ball lifting ports 10 of the storage court are all provided with touch type ball lifting gates 14, so that only one gravity steel ball 12 can be discharged each time. The motor 5 drives the bearing steel cable 4 to move, and then drives the ball lifting net rack 3 to move, the ball lifting net rack 3 finishes the ball loading and unloading actions from the high-position ball storage yard 7 and the low-position ball storage yard 8 through touch pushing in the operation process, the gravity steel ball 12 can automatically roll to the ball unloading port 9 of the ball storage yard and the ball lifting port 10 of the ball storage yard through the self weight and the touch ball lifting gate 14, manual or mechanical carrying is not needed, and automation can be realized; the ball lifting net rack 3 moves along with the bearing steel cable 4 to lift the gravity steel ball 12 to the high-position ball storage field 7 to store the potential energy of the steel ball, and the steel ball falls down from the high-position ball storage field 7 to drive the generator 6 to generate electricity during the peak of power consumption, thereby realizing the release of energy and achieving the purposes of energy storage and energy conversion.

The gravity steel ball 12 falls down and drives the generator 6 to rotate and generate electricity through a gear, a belt, a steel cable or a torque arm and the like.

The altitude fall between the high-level ball storage yard 7 and the low-level ball storage yard 8 is hundreds of meters, and a ball storage yard protective net or a reinforced enclosing wall 13 is built on the side edge.

In order to enlarge the energy storage scale, two or more ball carrying net racks can be synchronously built in one energy storage power station to improve the power generation.

As shown in fig. 2, the ball carrying net rack 3 is similar to a passenger carrying box of a current sightseeing bus, the load bearing steel cable 4 is fixed on the ball carrying net rack 3 through a rope clip 36, and the ball carrying net rack 3 can run up and down in the positive and negative directions by the load bearing steel cable 4 to realize energy storage or power generation; the ball lifting net rack 3 is similar to a hanging basket in appearance structure, a rigid seesaw type base 32 is arranged on a bottom panel, ball loading and ball unloading actions are completed through touch pushing in the operation process, the seesaw type base 32 is of an inverted T-shaped bucket structure, two sides of the bottom of the ball lifting net rack 3 are welded with a lantern ring A33, a rotating shaft of the seesaw type base 32 penetrates through a lantern ring A (33), a lantern ring B34 is welded on the back of the rear portion of the ball lifting net rack 3, an upper sliding rod and a lower sliding rod of the seesaw type base 32 penetrate through the lantern ring B (34), the lantern ring A33 is used for enabling the seesaw type base 32 to rotate when balls are lifted and unloaded, and the lantern ring B34 is used for enabling the seesaw type base 32 to move up and down when the balls are lifted and unloaded. Because the weight of the steel ball is huge, each ball lifting net rack can only load one steel ball at a time, but a plurality of ball lifting net racks are arranged on the whole steel cable. When the gravity steel ball 12 enters the ball lifting net rack 3, the back end of the seesaw base 32 is settled due to the downward pressing of the gravity, the front end of the seesaw base 32 is synchronously raised, the raised part plays a role in closing the ball lifting net rack 3, and the steel ball can be prevented from falling off from the security. When the ball lifting net rack 3 is lifted to the high-position ball storage field 7 to unload balls, the bottom plate settled down at the rear end of the seesaw base 32 is jacked up by the tongue-shaped ball supporting platform of the ball unloading port 9 of the ball storage field to pour out the gravity steel balls 12, thereby realizing the dual functions of automatic ball unloading and safe locking during transportation.

As shown in fig. 3, the touch type ball lifting gate 14 is a spring retractable gate, and includes a gate side wall 21, the gate side wall 21 is connected with a gate push rod 25 through a rotating ring 27 and a pull-back spring 24, the gate push rod 25 can rotate around the rotating ring 27, the rotating ring 27 is fixed on the gate side wall 21 through a rotating ring base 28, a gate baffle 23 is connected on the gate push rod 25 through a sliding ring 26, and a gate baffle passing groove 22 is formed on the gate side wall 21. When the ball lifting net rack 3 enters the ball lifting opening 10 of the storage court, the ball lifting net rack 3 can push the gate pushing rod 25 of the touch type ball lifting gate 14 forwards, the gate baffle 23 is pushed open to release a gravity steel ball 12, the ball lifting net rack 3 is separated from the touch type ball lifting gate 14 when continuously moving forwards and leaving, the touch type ball lifting gate 14 is pulled back to the original position by the pull-back spring 24, the gravity steel ball is clamped by the gate baffle 23, and a steel ball extraction process is completed.

The gravity steel balls 12 are round solid steel balls with the weight at the tonnage level, and the materials, the sizes and the weights of all the gravity steel balls are kept uniform. The gravity steel ball is used for achieving the purpose that the steel ball is large in density, the size of an object is smaller compared with other materials when the weight is equal, the spherical design is that the surface of the steel ball is smooth, the steel ball can automatically roll to the ball taking port through the self weight and the slope of the port, manual or mechanical carrying is not needed, and the automation of a production mode can be achieved.

The ball lifting port 10 of the ball storage field is positioned at the bottom of the high-position ball storage field 7 and the low-position ball storage field 8 and is in an inverted trumpet shape which gradually shrinks, and the ball lifting port 10 of the ball storage field can only pass through one gravity steel ball at a time through shrinking; a tongue-shaped ball supporting platform is arranged at the front end of the ball discharging port 9 of the ball storage yard.

The tower 2 is a series of steel or concrete support frames which are built on a mountain body according to comprehensive factors such as hillside terrain, geological structure, construction difficulty, lifting height, safety and reliability, the distance between the towers is not fixed, and the passing and later-stage maintenance items of a suspension steel cable and a ball lifting net rack are considered during structural design.

The bearing steel cable 4 is a special sealed steel cable which has the characteristics of high strength, small deformation, corrosion resistance, wear resistance and the like, and the whole bearing steel cable forms a closed-loop flexible heavy overhead rail.

The ball storage field is divided into a high-position ball storage field 7 and a low-position ball storage field 8 which are fields for storing and conveying gravity steel balls, the size of the ball storage field is designed and planned according to the capacity of an energy storage power station and the size of the steel balls and is respectively built at the top and the bottom of a mountain of the energy storage power station, and the circular ramp 11 ground has a certain gradient, so that the steel balls can roll by self gravity, the gradient size is suitable, the gravity steel balls can not roll because of being too flat, and unnecessary impact caused by too fast rolling of too large gradient steel balls can not be realized.

In order to ensure the safe operation of the system, necessary safety measures such as a steel wire rope detection device, a brake damping device, a load capacity detection device, a ball lifting and falling switching device and the like need to be configured.

The generator is a rotary magnetic cutting line generator, and the technologies and equipment in the aspects of power generation and power transmission are not expressed in the invention, and are realized by adopting high-efficiency, safe and reliable generators.

Considering that the efficiency is better when the fall between the high-position ball storage field and the low-position ball storage field is larger, when the trend of a hillside is suddenly jumped, disconnected and turned, a middle transshipping platform can be built at the position of the waist of the hill, and a ball lifting system can be additionally built between the middle transshipping platform and the high-position ball storage field.

Although the preferred embodiments of the present invention have been described above by way of example with reference to the accompanying drawings, the invention is intended to cover all forms of energy storage which are equivalent to the invention, without departing from the spirit of the invention and the scope of the appended claims.