CN-224233395-U - Mechanical energy storage device and system

CN224233395UCN 224233395 UCN224233395 UCN 224233395UCN-224233395-U

Abstract

The utility model provides a mechanical energy storage device and system, comprising a plurality of mechanical energy storage mechanisms, wherein each mechanical energy storage mechanism comprises a mounting mechanism and a plurality of mechanical energy storage units, and each mechanical energy storage unit comprises a fixed shaft assembly, a rotating shaft assembly, a spiral spring and a reversible motor. The spiral spring is tensioned to store mechanical potential energy based on the action of an electromagnetic induction law and a Faraday electromagnetic induction law by utilizing the bidirectional performance of the reversible motor, and when the driving end of the reversible motor rotates forwards, the spiral spring is released to convert the mechanical potential energy into electric energy for power supply when the driving end of the reversible motor rotates reversely, and the efficient integration of scattered electric energy and peak load translation of a metallurgical enterprise are realized through the cooperative control of the reversible motor and the spiral spring, and the electric energy can be stored in a storage battery to supplement electricity during a power utilization peak period, so that the production cost is reduced, the structure is simple, and the later maintenance is convenient.

Inventors

XIANG WANG
CHEN CHENG
WANG QIAOYUN
XIE SENLIN
HU MIN
YANG ZHIGANG
HE MENGJUN
XIAO LEI
Yi Jujun
AN JUN
YU BIN

Assignees

湖南华菱涟源钢铁有限公司

Dates

Publication Date: 20260512
Application Date: 20250612

Claims (10)

1. A mechanical energy storage device is characterized by comprising a plurality of mechanical energy storage mechanisms which are distributed at intervals, wherein each mechanical energy storage mechanism comprises a mounting mechanism and a plurality of mechanical energy storage units which are distributed at intervals along the circumferential direction of the mounting mechanism, Each mechanical energy storage unit comprises a fixed shaft assembly, a rotating shaft assembly, a spiral spring and a reversible motor, wherein the fixed shaft assembly is connected to the top of the installation mechanism, the rotating shaft assembly is connected to the bottom of the installation mechanism, one end of the spiral spring is connected with the fixed shaft of the fixed shaft assembly, the other end of the spiral spring is connected with the rotating shaft of the rotating shaft assembly, and the driving end of the reversible motor is connected with the rotating shaft of the rotating shaft assembly; The spiral spring is tensioned to store mechanical potential energy when the driving end of the reversible motor rotates positively, and is released to convert the mechanical potential energy into electric energy for power supply when the driving end of the reversible motor rotates reversely.
2. The mechanical energy storage device of claim 1, wherein the mounting mechanism includes a top plate, a chassis, and a plurality of posts spaced circumferentially about the top plate, the posts being supported between the top plate and the chassis.
3. The mechanical energy storage device of claim 2, wherein the dead axle assembly comprises a dead axle housing and a dead axle, the dead axle housing is connected to the top plate, an opening is formed in one side of the dead axle housing, the dead axle is fixed in the dead axle housing, and one end of the spiral spring extends into the opening end of the dead axle housing and is connected to the dead axle.
4. The mechanical energy storage device of claim 3, wherein the rotating shaft assembly comprises a rotating shaft housing and a rotating shaft, the rotating shaft housing is connected to the chassis, an opening is formed in one side of the rotating shaft housing, the rotating shaft is fixed in the rotating shaft housing, and the other end of the spiral spring extends into the opening end of the rotating shaft housing and is connected to the rotating shaft.
5. The mechanical energy storage device of claim 4, wherein the top plate and the bottom plate are both annular in shape, and the open end of the dead axle housing is disposed adjacent to and toward the inner annular side of the top plate, and the open end of the rotating axle housing is disposed adjacent to and toward the inner annular side of the bottom plate.
6. The mechanical energy storage device of claim 3, wherein a plurality of top grooves are formed in the top plate at intervals along the circumferential direction of the top plate, a plurality of first bolt holes are formed in the side wall of the top plate at intervals along the circumferential direction of the top plate, each top groove is communicated with one first bolt hole, one fixed shaft shell is arranged in each top groove, and bolts penetrate through the first bolt holes and extend into the top grooves to compress the fixed shaft shells.
7. The mechanical energy storage device of claim 4, wherein a plurality of bottom grooves are formed in the chassis at intervals along the circumferential direction of the chassis, a plurality of second bolt holes are formed in the side wall of the chassis at intervals along the circumferential direction of the chassis, each bottom groove is communicated with one second bolt hole, one rotating shaft shell is arranged in each bottom groove, and bolts penetrate through the second bolt holes and extend into the bottom grooves to compress the rotating shaft shells.
8. The mechanical energy storage device of claim 1, wherein the number of mechanical energy storage units in each mechanical energy storage mechanism is twelve, and twelve mechanical energy storage units are arranged at intervals along the circumference of the mounting mechanism.
9. The mechanical energy storage device of claim 1, wherein a plurality of said mechanical energy storage mechanisms are arranged in a matrix.
10. A mechanical energy storage system, characterized by comprising a plurality of mechanical energy storage devices according to any one of claims 1-9, wherein a plurality of mechanical energy storage devices are sequentially spliced.

Description

Mechanical energy storage device and system Technical Field The utility model relates to the technical field of energy storage and power generation, in particular to a mechanical energy storage device and system. Background In the metallurgical industry production process, the load surge in the peak electricity consumption period is easy to cause power grid fluctuation and even trip and power failure, and the production continuity is seriously damaged, so that the melting furnace is solidified, the rolling line is stopped and other important losses are caused. In order to relieve peak load, the prior art often utilizes scattered power generation devices such as wind energy, photovoltaics and the like distributed in a factory to convert waste energy into electric energy. However, such distributed power generation has significant drawbacks: The output instability is that the generated energy is randomly fluctuated due to wind and light resource fluctuation, the instantaneous requirement of peak electricity utilization is difficult to match, the energy fragmentation is that the electric energy output is fragmented due to the space-time dispersibility of multi-source electricity generation, the electric energy cannot be stored in a concentrated mode, the effective discharging capacity is formed, and the like. Therefore, there is a need for an energy storage system that can efficiently integrate scattered energy to achieve controlled charging and discharging to support load translation during peak hours. Disclosure of utility model The utility model mainly aims to provide a mechanical energy storage device and a mechanical energy storage system, which are used for solving the problems of relatively decentralized and unstable energy storage and electricity storage in the prior art. In order to achieve the aim, the utility model provides a mechanical energy storage device which comprises a plurality of mechanical energy storage mechanisms which are arranged at intervals, wherein each mechanical energy storage mechanism comprises a mounting mechanism and a plurality of mechanical energy storage units which are arranged at intervals along the circumferential direction of the mounting mechanism, Each mechanical energy storage unit comprises a fixed shaft assembly, a rotating shaft assembly, a spiral spring and a reversible motor, wherein the fixed shaft assembly is connected to the top of the installation mechanism, the rotating shaft assembly is connected to the bottom of the installation mechanism, one end of the spiral spring is connected with the fixed shaft of the fixed shaft assembly, the other end of the spiral spring is connected with the rotating shaft of the rotating shaft assembly, and the driving end of the reversible motor is connected with the rotating shaft of the rotating shaft assembly; The spiral spring is tensioned to store mechanical potential energy when the driving end of the reversible motor rotates positively, and is released to convert the mechanical potential energy into electric energy for power supply when the driving end of the reversible motor rotates reversely. Preferably, the mounting mechanism comprises a top plate, a chassis and a plurality of stand columns arranged at intervals along the circumferential direction of the top plate, wherein the stand columns are supported between the top plate and the chassis. Preferably, the dead axle assembly comprises a dead axle shell and a dead axle, wherein the dead axle shell is connected to the top plate, an opening is formed in one side of the dead axle shell, the dead axle is fixed in the dead axle shell, and one end of the scroll spring extends into the opening end of the dead axle shell and is connected to the dead axle. Preferably, the rotating shaft assembly comprises a rotating shaft shell and a rotating shaft, the rotating shaft shell is connected to the chassis, an opening is formed in one side of the rotating shaft shell, the rotating shaft is fixed in the rotating shaft shell, and the other end of the spiral spring stretches into the opening end of the rotating shaft shell and is connected to the rotating shaft. Preferably, the top plate and the chassis are both annular, and the open end of the fixed shaft housing is close to and faces the inner ring side of the top plate, and the open end of the rotating shaft housing is close to and faces the inner ring side of the chassis. Preferably, a plurality of roof grooves which are distributed along the circumferential interval of the roof plate are formed in the roof plate, a plurality of first bolt holes which are distributed along the circumferential interval of the roof plate are formed in the side wall of the roof plate, each roof groove is communicated with one first bolt hole, one fixed shaft shell is arranged in each roof groove, and bolts penetrate through the first bolt holes and extend into the roof grooves to compress the fixed shaft shell. Preferably, a plurality of bottom slo