CN111692055B - Gravity energy storage system and application method thereof - Google Patents
Gravity energy storage system and application method thereof Download PDFInfo
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- CN111692055B CN111692055B CN202010634490.6A CN202010634490A CN111692055B CN 111692055 B CN111692055 B CN 111692055B CN 202010634490 A CN202010634490 A CN 202010634490A CN 111692055 B CN111692055 B CN 111692055B
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- 238000004146 energy storage Methods 0.000 title claims abstract description 70
- 230000005484 gravity Effects 0.000 title claims abstract description 49
- 238000000034 method Methods 0.000 title claims abstract description 19
- 230000008569 process Effects 0.000 claims description 11
- 238000005381 potential energy Methods 0.000 description 11
- 238000005516 engineering process Methods 0.000 description 6
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 3
- 230000001965 increasing effect Effects 0.000 description 3
- 229910052744 lithium Inorganic materials 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
- F03G3/00—Other motors, e.g. gravity or inertia motors
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Abstract
The invention relates to the technical field of energy storage, and discloses a gravity energy storage system and a use method thereof, wherein the gravity energy storage system comprises: a mass block; the bearing structure comprises fixing pieces and bearing walls, a plurality of bearing walls are arranged in parallel at intervals, a lifting channel is formed between two adjacent bearing walls, the fixing pieces are connected to the bearing walls and are positioned in the lifting channel, and the fixing pieces are used for bearing the mass blocks; the lifting structure comprises a crane, motor equipment in the crane is set to be a generator motor, the crane is mounted at the top end of the bearing wall, and the crane is used for carrying the mass block. Through the structure, the gravity energy storage system has lower requirements on geographic conditions and occupies a smaller area.
Description
Technical Field
The invention relates to the technical field of energy storage, in particular to a gravity energy storage system and a using method thereof.
Background
Currently, with the rapid development of new energy and energy internet, the power industry has an urgent need for large-scale power energy storage technology.
In recent years, chemical energy storage technology has been developed vigorously, and in particular, lithium battery energy storage technology has been developed rapidly and widely used, and has become a mainstream chemical energy storage mode. However, the lithium battery energy storage itself also faces challenges in terms of cycle times, safety, cost and the like, and the safety and the economy of the lithium battery energy storage are still insufficient. In contrast, although the physical energy storage technology is high in safety and economy, the current commonly used energy storage mode is still pumped storage, the mode is greatly limited by geographical conditions, and the physical energy storage technology is difficult to comprehensively popularize and apply, so that the popularization and application of the physical energy storage technology are severely restricted.
Therefore, new physical energy storage methods are needed to meet the requirements of safety and economy of energy storage devices.
Disclosure of Invention
It is an object of the present invention to provide a gravity energy storage system which has low geographical requirements and a small footprint.
To achieve the purpose, the invention adopts the following technical scheme:
a gravity energy storage system, comprising:
A mass block;
The bearing structure comprises fixing pieces and bearing walls, a plurality of bearing walls are arranged in parallel at intervals, a lifting channel is formed between two adjacent bearing walls, the fixing pieces are connected to the bearing walls and are positioned in the lifting channel, and the fixing pieces are used for bearing the mass blocks;
The lifting structure comprises a crane, motor equipment in the crane is set to be a generator motor, the crane is mounted at the top end of the bearing wall, and the crane is used for carrying the mass block.
Preferably, the load bearing structure further comprises a support connected to the load bearing wall and located in the hoistway, the support being extendable and retractable from the load bearing wall.
Preferably, the bearing wall is divided into an upper part, a middle part and a lower part, the fixing member is connected to the bearing wall of the upper part and the bearing wall of the lower part, and the supporting member is connected to the bearing wall of the middle part.
Preferably, the supporting piece comprises a first supporting rod and a second supporting rod, the first supporting rod and the second supporting rod are arranged in a crossing mode, and two ends of the first supporting rod and two ends of the second supporting rod can be connected to the bearing walls on two sides of the lifting channel respectively.
Preferably, the bearing walls at two sides of the lifting channel are provided with first guide grooves, and the first guide grooves are arranged along the vertical direction; the bearing walls at the upper parts of the two sides of the lifting channel are provided with second guide grooves which are arranged along the horizontal direction.
Preferably, the lifting structure further comprises a lifting appliance, and the lifting appliance is connected to the output end of the row crane and is used for being connected with the mass block.
Preferably, the lifting appliance comprises two opposite side surfaces, and guide pins are arranged on the two side surfaces of the lifting appliance and are arranged in the first guide groove or the second guide groove.
Preferably, the lifting structure further comprises a rail, the rail is arranged at the top end of the bearing wall, and the crane can slide along the rail.
Preferably, the bearing structure further comprises an enclosure part, the enclosure part comprises an enclosing wall and a roof, the enclosing wall is enclosed on the outer side of the bearing wall, and the roof is arranged on the top of the bearing wall.
Another object of the present invention is to provide a method for using a gravity energy storage system, which is used for using the gravity energy storage system, and includes the following steps:
the electric energy storage process comprises the following steps:
S1, placing a mass block on a fixing piece at the lower part of a lifting channel;
s2, enabling a crane to hoist the mass block, and retracting the fixing piece supporting the mass block, wherein the crane lifts and conveys the mass block to a designated position on the upper part of the lifting channel;
S3, extending the fixing piece at the appointed position on the upper part of the lifting channel, and placing the mass block on the extending fixing piece;
the electric energy release process comprises the following steps:
S4, enabling the traveling crane to hang the mass block, and retracting the fixing piece supporting the mass block;
s5, the crane lowers and conveys the mass block to a designated position at the lower part of the lifting channel;
S6, the fixing piece at the appointed position of the lower part of the lifting channel stretches out, and the mass block is placed on the stretched fixing piece.
The invention has the beneficial effects that:
The invention provides a gravity energy storage system which comprises a mass block, a bearing structure and a lifting structure, wherein the bearing structure comprises a fixing piece and bearing walls, the bearing walls are arranged in parallel at intervals, a lifting channel is formed between two adjacent bearing walls, the fixing piece is connected to the bearing walls on two sides of the lifting channel, and a crane of the lifting structure can hoist the mass block in the lifting channel and move, so that lifting and carrying of the mass block in the lifting channel are realized. The motor equipment of the crane is a generator motor, the generator motor consumes electric energy when driving the mass block to rise, and the generator motor converts the consumed electric energy into gravitational potential energy of the mass block; when the mass block descends under the action of gravity, the generator motor generates electric energy, and gravitational potential energy of the mass block is converted into electric energy through the generator motor, so that the electric energy is stored and released. Because the mass block is a solid structure with a certain shape, the mass block can be stored in a lifting channel between the bearing walls, and no special requirements are made on geographic conditions such as terrain, so that the gravity energy storage system has lower requirements on the geographic conditions, and the bearing walls can enable the mass block to obtain more gravitational potential energy by increasing the height, so that the gravity energy storage system can occupy the ground with a smaller area to realize the physical storage of electric energy.
Drawings
FIG. 1 is a schematic perspective view of a gravity energy storage system according to an embodiment of the present invention;
FIG. 2 is a side view of a hoistway in a gravity energy storage system according to an embodiment of the present invention;
FIG. 3 is a top view of a hoistway in a gravity energy storage system according to an embodiment of the present invention;
FIG. 4 is a schematic view of a support member in a gravity energy storage system according to an embodiment of the present invention;
FIG. 5 is a schematic view of a first guide channel and a second guide channel in a gravity energy storage system according to an embodiment of the present invention disposed on a load bearing wall;
FIG. 6 is a cross-sectional view of a first guide slot in a gravity energy storage system according to an embodiment of the present invention in a vertical direction;
FIG. 7 is a cross-sectional view of a first guide slot in a gravity energy storage system according to an embodiment of the present invention in a horizontal direction;
FIG. 8 is a cross-sectional view of a second guide slot in a gravity energy storage system according to an embodiment of the present invention in a horizontal direction;
FIG. 9 is a cross-sectional view of a second guide slot in a gravity energy storage system according to an embodiment of the present invention in a vertical direction;
FIG. 10 is a schematic illustration of a containment portion in a gravity energy storage system according to an embodiment of the present invention;
FIG. 11 is a schematic diagram illustrating the arrangement of mass blocks in a gravity energy storage system in a lower portion of a lifting channel according to an embodiment of the present invention;
FIG. 12 is a schematic illustration of the handling of a mass in a gravity energy storage system according to an embodiment of the present invention;
Fig. 13 is a schematic diagram of an arrangement of a mass block in a gravity energy storage system at an upper portion of a lifting channel according to an embodiment of the present invention.
In the figure:
1. A mass block; 21. a fixing member; 22. a bearing wall; 221. a first guide groove; 222. a second guide groove; 23. a lifting channel; 24. a support; 251. a wall; 252. a roof; 31. lifting; 32. a lifting appliance; 321. a guide pin; 33. a track;
Detailed Description
In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved more clear, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
The technical scheme of the invention is further described below by means of specific embodiments in combination with the accompanying drawings.
The invention provides a gravity energy storage system, as shown in fig. 1-3, comprising a mass 1, a load bearing structure and a lifting structure. Specifically, the bearing structure comprises a fixing piece 21 and bearing walls 22, wherein a plurality of bearing walls 22 are arranged in parallel at intervals, a lifting channel 23 is formed between two adjacent bearing walls 22, and the fixing piece 21 is connected to the bearing walls 22 and is positioned in the lifting channel 23 and used for bearing the mass block 1. The lifting structure comprises a crane 31, motor equipment in the crane 31 is set as a generator motor, the crane 31 is arranged at the top end of the bearing wall 22, and the crane 31 can hoist the mass block 1 to lift and move in the lifting channel 23, so that the mass block 1 can be lifted and carried in the lifting channel 23. Preferably, the lifting structure further comprises a rail 33, the rail 33 being laid on top of the load-bearing wall 22, the travelling crane 31 being able to slide along the rail 33.
It should be noted that the mass 1 has a rectangular parallelepiped shape with a size of 3m×3m, the frame of the mass 1 has a steel structure, the internal filler is concrete waste, and the weight of the mass 1 is set to 50t. It will be appreciated that the above parameters of the mass 1 can be set by a person skilled in the art according to the actual circumstances.
The generator motor consumes electric energy when driving the mass block 1 to ascend, and converts the consumed electric energy into gravitational potential energy of the mass block 1 to be stored; when the gravity force descends, the mass block 1 drives the generator motor to rotate to generate electric energy, and gravitational potential energy of the mass block 1 is converted into electric energy through the generator motor to be released, so that the gravity energy storage system stores and releases the electric energy. Because the mass block 1 is a solid structure with a certain shape, the mass block can be stored in the lifting channel 23 between the bearing walls 22, and no special requirements are made on geographic conditions such as terrain, so that the requirements of the gravity energy storage system on the geographic conditions are low, and the bearing walls 22 can enable the mass block 1 to obtain more gravity potential energy by increasing the height, so that the gravity energy storage system can occupy the ground with a small area to realize the physical storage of electric energy.
In this embodiment, the load bearing wall 22 is divided into an upper part, a middle part and a lower part, and the fixing member 21 is connected to the upper load bearing wall 22 and the lower load bearing wall 22, so that the mass 1 can be placed on both the upper load bearing wall 22 and the lower load bearing wall 22. As shown in fig. 4, the load-bearing structure preferably further includes a support member 24, where the support member 24 is connected to the load-bearing wall 22 in the middle and is located in the lifting channel 23, and the support member 24 can support the load-bearing wall 22 on both sides of the lifting channel 23, so as to improve the overall stability of the gravity energy storage system. Specifically, the supporting member 24 includes a first supporting rod and a second supporting rod, which are disposed in a crossing manner, and two ends of the first supporting rod and the second supporting rod can be respectively connected to the bearing walls 22 on two sides of the lifting channel 23, so as to support the bearing walls 22 on two sides of the lifting channel 23. More preferably, the first support bar and the second support bar are configured to extend from and retract into the load bearing wall 22, such that the support member 24 can serve to support the load bearing wall 22 on both sides of the hoistway 23 without affecting the handling of the mass 1 in the hoistway 23.
It should be noted that the bearing wall 22 is a reinforced concrete structure, the height of the bearing wall 22 is 150m, the portion of the bearing wall 22 between 0 and 50m is a lower bearing wall 22, the portion of the bearing wall 22 between 50 and 100m is a middle bearing wall 22, and the portion of the bearing wall 22 between 100 and 150m is an upper bearing wall 22. It will be appreciated that the above parameters of the load bearing wall 22 can be set by those skilled in the art according to the actual circumstances.
As shown in fig. 5, preferably, the bearing walls 22 on both sides of the lifting channel 23 are oppositely provided with first guide grooves 221, and the first guide grooves 221 are arranged along the vertical direction; the bearing walls 22 on the upper parts of the two sides of the lifting channel 23 are also provided with second guide grooves 222, the second guide grooves 222 are arranged along the horizontal direction, and the first guide grooves 221 and the second guide grooves 222 can guide the movement of the mass block 1 in the lifting channel 23. As shown in fig. 6 to 9, in this embodiment, the lifting structure further includes a lifting appliance 32, where the lifting appliance 32 is connected to the output end of the row crane 31, and the lifting appliance 32 is used to connect with the mass block 1, so that the output end of the row crane 31 can conveniently lift the mass block 1. Alternatively, the spreader 32 is provided as a steel grating plate, which has a high structural strength and is able to withstand the weight of the mass 1.
Specifically, the spreader 32 includes two opposite side surfaces, and both side surfaces of the spreader 32 are provided with guide pins 321, and the guide pins 321 are partially disposed in the first guide grooves 221 or the second guide grooves 222, so that the spreader 32 can move the mass 1 along the first guide grooves 221 or the second guide grooves 222 through the guide pins 321, which is beneficial to moving the mass 1 along a preset track in the lifting channel 23.
As shown in fig. 10, in this embodiment, the load-bearing structure further includes an enclosure portion, where the enclosure portion includes an enclosing wall 251 and a roof 252, the enclosing wall 251 encloses the outer side of the load-bearing wall 22, the roof 252 is disposed on the top of the load-bearing wall 22, and the enclosing wall 251 and the roof 252 can prevent impurities such as rainwater and floating objects from entering the gravity energy storage system, so as to protect the gravity energy storage system.
In this embodiment, the energy storage power of the gravity energy storage system is 4MW and the energy storage capacity is 16MWh. The load-bearing walls 22 were provided with 5 lanes, the length of each lane of load-bearing walls 22 was set to 60m, the width was set to 2m, the distance between the load-bearing walls 22 was set to 3.5m, and the total width of the load-bearing walls 22 was set to 24m. The mass blocks 1 are provided with 1152 blocks in total, which are arranged in the lifting channels 23 between the bearing walls 22, the mass blocks 1 are divided into 4 groups, the height of each group of mass blocks 1 is 16 layers, and each layer of mass blocks 1 is 18 blocks. 4 row cranes 31 are arranged among the bearing walls 22, the average lifting speed of the movable mass blocks 1 of the row cranes 31 is set to be 120m/min, the power of each row crane 31 is set to be 1000kW, 4 power generation motors with the power of 250kW and the efficiency of 96% are arranged in each row crane 31, when the 4 row cranes 31 work simultaneously, 4MW energy storage power can be corresponding, and 4 hours of work can correspond to 16MWh energy storage capacity. It will be appreciated that the above parameters of the gravity energy storage system may be set by those skilled in the art according to the actual circumstances.
It can be appreciated that the energy storage scale of the gravity energy storage system can be increased to more than 10MWh to meet the large-scale power energy storage requirement, and also can be reduced to less than 1MWh to meet the energy storage requirement of distributed energy sources, micro-grids, industrial and commercial users and the like. Meanwhile, the gravity energy storage system can be used for storing energy in a short term (such as a few hours) and also can be used for storing energy in a long term (such as a few months). It is worth noting that the gravity energy storage system can also be used for other commercial purposes (such as sightseeing tour) due to the ultra-high building.
The embodiment also provides a use method of the gravity energy storage system, which comprises an electric energy storage process and an electric energy release process, and specifically comprises the following steps:
A process of storing electrical energy, which converts the electrical energy into gravitational potential energy of the mass 1, comprising:
s1, placing the mass block 1 on a fixing piece 21 at the lower part of a lifting channel 23.
That is, as shown in fig. 11, the mass 1 is placed in the elevating channel 23, is rested on the fixing member 21 of the lower bearing wall 22, and is arranged in a predetermined order. At the same time, the supports 24 on the bearing wall 22 in the middle are retracted, and the lifting channel 23 is emptied, so that the mass 1 can move in the lifting channel 23.
S2, enabling the crane 31 to hoist the mass block 1, retracting the fixing piece 21 supporting the mass block 1, and lifting and conveying the mass block 1 to a designated position on the upper portion of the lifting channel 23 by the crane 31.
That is, the traveling crane 31 is caused to hoist the mass 1 by the hoist 32, the fixing member 21 supporting the mass 1 is retracted, and the hoist 32 is moved along the first guide groove 221 and the second guide groove 222 by the hoist rope of the traveling crane 31 (as shown in fig. 12), thereby lifting and transporting the mass 1 to a predetermined position of the upper load-bearing wall 22. During the lifting of the mass 1, the generator motor of the crane 31 continuously consumes electrical energy, which is converted into gravitational potential energy of the mass 1.
S3, a fixing piece 21 at a designated position on the upper part of the lifting channel 23 extends out, and the mass block 1 is placed on the extending fixing piece 21.
That is, the fixing member 21 at a specified position on the upper load-bearing wall 22 is extended, the traveling crane 31 places the mass 1 on the fixing member 21, and the traveling crane 31 is left empty for subsequent lifting and carrying of other masses 1 to the specified position.
It should be noted that, during the process of storing electric energy, only the supporting member 24 in the lifting channel 23 is required to be retracted, and the supporting member 24 in the lifting channel 23 is not required to be extended to be in a state of supporting the load-bearing wall 22.
A process of releasing electrical energy, which converts gravitational potential energy of the mass 1 into electrical energy, comprising:
s4, enabling the crane 31 to hoist the mass block 1, and retracting the fixing piece 21 supporting the mass block 1.
That is, as shown in fig. 13, after the traveling crane 31 lifts the mass 1 by the hanger 32, the fixing member 21 supporting the mass 1 is retracted. At the same time, the supports 24 on the central load-bearing wall 22 are also retracted, emptying the hoistway 23, so that the mass 1 can move in the hoistway 23.
S5, the crane 31 lowers and conveys the mass block 1 to a designated position below the lifting channel 23.
That is, the hoist 32 moves along the first guide groove 221 and the second guide groove 222 by being pulled by the hoist rope of the traveling crane 31, and lowers and conveys the mass 1 to a predetermined position of the lower load-bearing wall 22. In the process of lowering the mass 1, the gravitational potential energy of the mass 1 is continuously consumed, the generator motor of the crane 31 continuously generates electric energy, and the gravitational potential energy of the mass 1 is converted into electric energy for release.
S6, a fixing piece 21 at a designated position at the lower part of the lifting channel 23 extends out, and the mass block 1 is placed on the extending fixing piece 21.
That is, the fixing member 21 at the designated position of the lower load-bearing wall 22 is extended, the traveling crane 31 places the mass 1 on the fixing member 21, and the traveling crane 31 is left empty for subsequent lowering and carrying of other masses 1 to the designated position.
It should be noted that, during the process of releasing the electric energy, only the supporting member 24 in the lifting channel 23 is required to be retracted, and the supporting member 24 in the lifting channel 23 is not required to be extended to be in a state of supporting the load-bearing wall 22.
It is to be understood that the above examples of the present invention are provided for clarity of illustration only and are not limiting of the embodiments of the present invention. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the invention. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the invention are desired to be protected by the following claims.
Claims (7)
1. A gravity energy storage system, comprising:
A mass (1);
The bearing structure comprises fixing pieces (21) and bearing walls (22), a plurality of bearing walls (22) are arranged at intervals in parallel, a lifting channel (23) is formed between two adjacent bearing walls (22), the fixing pieces (21) are connected to the bearing walls (22) and are located in the lifting channel (23), and the fixing pieces (21) are used for bearing the mass blocks (1);
The lifting structure comprises a crane (31), motor equipment in the crane (31) is set to be a generator motor, the crane (31) is arranged at the top end of the bearing wall (22), and the crane (31) is used for carrying the mass block (1);
The load-bearing structure further comprises a support (24), wherein the support (24) is connected to the load-bearing wall (22) and is positioned in the lifting channel (23), and the support (24) can extend out of and retract from the load-bearing wall (22);
The bearing wall (22) is divided into an upper part, a middle part and a lower part, the fixing piece (21) is connected to the bearing wall (22) at the upper part and the bearing wall (22) at the lower part, and the supporting piece (24) is connected to the bearing wall (22) at the middle part;
The lifting structure further comprises a track (33), the track (33) is arranged at the top end of the bearing wall (22), and the crane (31) can slide along the track (33).
2. The gravity energy storage system according to claim 1, wherein the support member (24) comprises a first support bar and a second support bar, the first support bar and the second support bar are arranged in a crossing manner, and two ends of the first support bar and the second support bar can be respectively connected to the bearing walls (22) at two sides of the lifting channel (23).
3. The gravity energy storage system according to claim 1, wherein the bearing walls (22) on both sides of the lifting channel (23) are provided with first guiding grooves (221), and the first guiding grooves (221) are arranged along the vertical direction; the bearing walls (22) at the upper parts of the two sides of the lifting channel (23) are provided with second guide grooves (222), and the second guide grooves (222) are arranged along the horizontal direction.
4. A gravity energy storage system according to claim 3, characterised in that the lifting structure further comprises a spreader (32), which spreader (32) is connected to the output of the row crane (31) for connection with the mass (1).
5. The gravity energy storage system according to claim 4, wherein the spreader (32) comprises two oppositely arranged sides, and wherein guide pins (321) are arranged on both sides of the spreader (32), and wherein the guide pins (321) are arranged in the first guide groove (221) or the second guide groove (222).
6. The gravity energy storage system according to claim 1, wherein the load bearing structure further comprises an enclosure comprising an enclosure wall (251) and a roof (252), the enclosure wall (251) being enclosed outside the load bearing wall (22), the roof (252) being arranged on top of the load bearing wall (22).
7. A method of using a gravity energy storage system according to any of claims 1-6, comprising the steps of:
the electric energy storage process comprises the following steps:
s1, placing a mass block (1) on a fixing piece (21) at the lower part of a lifting channel (23);
S2, enabling a traveling crane (31) to hoist the mass block (1), and enabling the fixing piece (21) supporting the mass block (1) to be retracted, wherein the traveling crane (31) lifts and conveys the mass block (1) to a designated position on the upper part of the lifting channel (23);
S3, the fixing piece (21) at the appointed position on the upper part of the lifting channel (23) stretches out, and the mass block (1) is placed on the stretched-out fixing piece (21);
the electric energy release process comprises the following steps:
S4, enabling the traveling crane (31) to hoist the mass block (1), and retracting the fixing piece (21) supporting the mass block (1);
S5, the crane (31) lowers and conveys the mass block (1) to a designated position at the lower part of the lifting channel (23);
S6, the fixing piece (21) at the appointed position of the lower part of the lifting channel (23) stretches out, and the mass block (1) is placed on the stretching out fixing piece (21).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010634490.6A CN111692055B (en) | 2020-07-02 | 2020-07-02 | Gravity energy storage system and application method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010634490.6A CN111692055B (en) | 2020-07-02 | 2020-07-02 | Gravity energy storage system and application method thereof |
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| CN111692055A CN111692055A (en) | 2020-09-22 |
| CN111692055B true CN111692055B (en) | 2024-04-26 |
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| KR20220129574A (en) | 2020-01-22 | 2022-09-23 | 에너지 볼트 인코포레이티드 | Grabber with Damping Self-Centering Mechanism |
| CA3182575A1 (en) | 2020-06-30 | 2022-01-06 | Andrea Pedretti | Energy storage and delivery system and method |
| US12132312B2 (en) | 2020-12-24 | 2024-10-29 | Energy Vault, Inc. | Energy storage system with elevator lift system |
| CN112814858A (en) * | 2021-01-06 | 2021-05-18 | 高拓石油天然气技术（上海）有限责任公司 | Energy storage power generation method based on gravitational potential energy and energy storage power generation tower |
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