CN217445030U - Gravity energy storage system for peak shaving of large power station - Google Patents

Abstract

The utility model discloses a gravity energy storage system that is used for large-scale power station peak shaving to use, including the massif and the track that discharges, the upper and lower both sides of massif have processed mountain top energy storage place and the mountain down storage place respectively, a plurality of steel wire cable rope pulleys are installed to the end of hawser bracing piece, the outer wall winding of steel wire cable rope pulley has the steel wire cable rope, both sides twine respectively about the outer wall of steel wire cable rope has last carousel and lower carousel. This a gravity energy storage system for large-scale power station peak shaving usefulness, through heavy goods car, the generator, the massif, the cooperation between track and the steel wire hawser of discharging, the stable electric power of output three-phase need not directly can merge into the electric wire netting through the dc-to-ac converter, so the massif of energy storage finds more easily, and the electric power of storing is many, and the discharge time is long, does not receive the influence of weather, and this system belongs to physical machinery energy storage, and the life-span can reach more than 50 years, has avoided current energy storage structure ubiquitous problem that the system is complicated, the cost is higher.

Description

Gravity energy storage system for peak shaving of large power station

Technical Field

The utility model relates to an energy storage technology field specifically is a gravity energy storage system that is used for large-scale power station peak shaving to use.

Background

The use of fossil energy needs to be reduced and the proportion of wind power and photovoltaic power generation in energy utilization is gradually increased when carbon neutralization is realized in 2060 years in China, however, the wind power and the photovoltaic power generation are unstable energy and cannot completely meet the social power utilization requirement, so that the requirements of power generation and power utilization need to be adjusted by an energy storage system, the existing energy storage forms include various forms such as electrochemical energy storage, water pumping energy storage, chemical energy storage and compressed air energy storage, but the problems of complex system and high cost generally exist.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a gravity energy storage system that is used for large-scale power station peak shaving to solve the current energy storage structure ubiquitous problem that the system is complicated, the cost is higher that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a gravity energy storage system for peak shaving of a large-scale power station comprises a mountain body and a discharge track, wherein a mountain top energy storage place and a mountain bottom storage place are respectively machined on the upper side and the lower side of the mountain body, a discharge acceleration channel and a discharge unloading channel are respectively installed on the upper side and the lower side of the discharge track, the mountain top energy storage place is communicated with the discharge track through the energy storage unloading channel, an energy storage loading station and an energy storage loading channel are respectively installed on the two sides below the discharge track, the two sides of the mountain bottom storage place are respectively connected with the energy storage loading channel and the mountain bottom storage place unloading channel, a plurality of cable support rods are fixedly connected to the surface of an inclined plane of the mountain body, a plurality of steel wire cable pulleys are installed at the tail ends of the cable support rods, steel wire cables are wound on the outer walls of the steel wire cable pulleys, an upper turntable and a lower turntable are respectively wound on the upper side and the lower side of the outer walls of the steel wire cables, and the inner rotating shaft of the lower turntable is rotationally connected with the lower turntable support tower.

Preferably, the inclined surface of the mountain body is provided with a hill.

Preferably, a generator is installed above the mountain.

Preferably, the generator input shaft is connected with the rotating shaft of the upper rotating disc.

Preferably, a plurality of hooks are fixedly connected to the lower portion of the outer wall of the steel wire cable.

Preferably, a plurality of heavy goods vehicles are placed above the mountain storage site and the mountain top energy storage site.

Compared with the prior art, the beneficial effects of the utility model are that: this a gravity energy storage system for large-scale power station peak regulation usefulness:

through the heavy object car, the generator, the massif, the cooperation between discharge track and the steel wire hawser, owing to adopt ripe cable car technique, it is rotatory to utilize the heavy object to drive the generator, the stable electric power of output three-phase need not directly can merge into the electric wire netting through the dc-to-ac converter, thereby lower construction cost and ripe technique have, the electric power of storage is according to the nimble configuration of mountain top size, because wind-powered electricity generation and photovoltaic are many to be built on the mountain, so the massif of energy storage is more easily found, and the electric power of storage is many, discharge time is long, do not receive the influence of weather, this system belongs to the physical machinery energy storage, the life-span can reach more than 50 years, the ubiquitous problem of system of current energy storage structure is complicated, the cost is higher has been avoided.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic top view of the structure of FIG. 1;

FIG. 3 is a schematic view of the structure at A-A in FIG. 2;

FIG. 4 is a schematic view of the structure at J in FIG. 2;

FIG. 5 is a schematic view of the structure at B-B in FIG. 2;

FIG. 6 is a schematic diagram of the right-side view structure of FIG. 1;

FIG. 7 is a schematic view of the structure at I in FIG. 6;

FIG. 8 is a schematic view of the structure at P in FIG. 7;

FIG. 9 is a schematic view of the structure at C-C in FIG. 6;

FIG. 10 is a schematic view of the structure at H in FIG. 6;

FIG. 11 is a schematic front view of the structure of FIG. 1;

FIG. 12 is a schematic view of the structure at E-E in FIG. 11;

FIG. 13 is a schematic view of the structure at F in FIG. 12;

FIG. 14 is a schematic view of the structure at G in FIG. 12;

FIG. 15 is a schematic view of the structure at L-L in FIG. 11;

fig. 16 is a schematic view of the structure at M in fig. 15.

In the figure: 1. the device comprises a mountain body, 2, a generator, 3, an upper rotary table, 4, a steel wire cable, 5, a cable supporting rod, 6, a clamping hook, 7, a discharging acceleration channel, 8, a heavy vehicle, 9, an underground mountain storage field, 10, a discharging unloading channel, 11, an energy storage loading station, 12, an underground wheel disc supporting tower frame, 13, a lower rotary table, 14, a discharging track, 15, an underground mountain energy storage field, 16, an energy storage unloading channel, 17, an energy storage loading channel, 18, an underground mountain storage field discharging channel, 19, a hillside, 20 and a steel wire cable pulley.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-16, the present invention provides a technical solution: a gravity energy storage system for peak shaving of a large-scale power station comprises a mountain body 1 and a discharge track 14, wherein a mountain top energy storage place 15 and a mountain bottom storage place 9 are respectively machined on the upper side and the lower side of the mountain body 1, a discharge acceleration channel 7 and a discharge unloading channel 10 are respectively installed on the upper side and the lower side of the discharge track 14, the mountain top energy storage place 15 is communicated with the discharge track 14 through an energy storage unloading channel 16, an energy storage loading station 11 and an energy storage loading channel 17 are respectively installed on the lower side of the discharge track 14, two sides of the mountain bottom storage place 9 are respectively connected with the energy storage loading channel 17 and a mountain bottom storage place unloading channel 18, a plurality of cable support rods 5 are fixedly connected to the surface of an inclined plane of the mountain body 1, a wheel disc is installed on the mountain top, a stand column is installed under the mountain, a wheel disc is also installed on the stand column, the steel wire rope is used for driving the upper wheel disc and the lower wheel disc to transmit energy, heavy objects are hung on a hook of the mountain to drive the steel wire rope to pull the heavy objects, and the heavy objects to drive the steel rope to pull the steel rope The wheel disc of the generator generates electricity, like a cable car, the heavy objects on the mountain are continuously put down to pull the cable to drive the wheel disc of the generator to rotate for generating electricity, and when the heavy objects on the mountain all reach the pre-built storage platform with the inclined plane, the discharging process is completed.

The time of energy storage is opposite, utilize the motor to drive the rim plate rotatory, transport the heavy object car from the downhill path to the storage platform that the mountain was built in advance on the mountain, the character is that the system principle is simple, the construction cost is lower, and be favorable to popularizing and applying, a plurality of steel wire rope pulleys 20 are installed to the end of hawser bracing piece 5, the outer wall winding of steel wire rope pulley 20 has steel wire rope 4, both sides are twined respectively about the outer wall of steel wire rope 4 has last carousel 3 and lower carousel 13, the slope surface processing of massif 1 has hillside 19, generator 2 is installed to the top of massif 1, the generator 2 input shaft is connected with the axis of rotation of last carousel 3, the outer wall below rigid coupling of steel wire rope 4 has a plurality of couples 6, a plurality of car heavy objects 8 have been placed to the top of the top in the downhill path storage place 9 and the top energy storage place 15, the inside pivot of lower carousel 13 rotates with lower rim plate support tower 12 and links to each other.

Through the heavy object car 8, generator 2, massif 1, the cooperation between discharge track 14 and the steel wire hawser 4, owing to adopt ripe cable car technique, it is rotatory to utilize the heavy object to drive generator 2, the stable electric power of output three-phase need not directly can merge into the electric wire netting through the dc-to-ac converter, thereby lower construction cost and ripe technique have, the electric power of storage is according to the nimble configuration of mountain top size, because wind-powered electricity generation and photovoltaic are mostly constructed on the mountain, so the massif of energy storage finds more easily, and the electric power of storage is many, discharge time is long, do not receive the influence of weather, this system belongs to physical machinery energy storage, the life-span can reach more than 50 years, avoided current energy storage structure ubiquitous system complicacy, the higher problem of cost.

When the gravity energy storage system for peak shaving of a large-scale power station is needed, firstly, a system for storing and releasing heavy goods vehicles 8, which is formed by steel wire cables 4, an upper rotary disc 3, a certain number of cable support rods 5, a lower rotary disc 13 and the like, is built on the top of a mountain body 1 with the relative ground fall of more than 100 meters along a hillside 19, in order to reduce friction force, a plurality of steel wire rope pulleys 20 are respectively arranged at two ends of each cable support rod 5, a generator 2 (for power generation and electromotion) is arranged at a proper position on the top of the hillside, a speed increasing box is arranged on the generator 2, and when the heavy goods vehicles 8 are hung on a hook 6 on a discharge accelerating channel 7, the steel wire cables 4 are driven to move, so that the upper rotary disc 3 and the lower rotary disc 13 are driven to rotate, and the generator 2 rotates to generate power.

During discharging, the heavy vehicle 8 is hung on the hook 6 on the steel wire cable 4 on the discharging channel 7 according to a preset certain time interval, so that the steel wire cable 4 is continuously moved to drive the generator 2 to rotate to generate power until the command is received, and then the power generation is stopped. When each heavy vehicle 8 runs to the discharging discharge channel 10, the heavy vehicles are intercepted by the discharge devices on the channel and move along the preset track in sequence and stay in the mountain storage place 9, the discharging discharge channel 10 has a slope with an angle larger than 2 degrees, the heavy vehicles 8 slide along the track on the downward slope without power drive due to the action of gravity, the heavy vehicles 8 have braking devices to control the sliding speed, and the running direction is controlled by the track.

The mountain top energy storage site 15 also has a gradient of more than 2 degrees, when the heavy vehicle 8 is unloaded from the energy storage unloading channel 16, the heavy vehicle 8 slides along a preset track without power due to the action of gravity, when the heavy vehicle 8 is unloaded, the heavy vehicle runs to a designated position according to an instruction, when a discharge power instruction is received, after the instruction is received by the mountain top energy storage site 15, the heavy vehicle 8 slides on a discharge acceleration channel 7 along a downhill slope on a discharge track 14 according to a certain time interval and sequence and is hung on a hook 6 to drive a steel wire cable 4 to move, so that the upper wheel disc 3 and the lower wheel disc 13 rotate to drive the generator 2 to rotate to generate power.

The mountain is stored place 9 and is also had the slope more than 2, when receiving the energy storage instruction, heavy goods car 8 moves on preset's track with self gravity action according to the instruction order, and store 18 shipment passageway gliding removal to energy storage loading passageway 17 through the mountain down, all be the ramp more than 2, be convenient for heavy goods car 8 to move with gravity action, energy storage loading passageway 17 is less than mountain down and stores place 18, so heavy goods car 8 does not need the drive power because all be the downhill path, every interval fixed mounting has pothook 6 on steel wire hawser 4.

The energy storage and the discharge of the device are operated separately, and the device does not discharge during energy storage and does not store energy during discharge.

The middle part of the upper surface of the heavy object vehicle 8 is provided with a groove, the upper part of the groove is provided with 2 connecting rods, the sliding speed of the heavy object vehicle 8 on a track of the discharging acceleration channel is higher than the running speed of the steel wire cable 4, when the clamping hook 6 is about to reach the designated position of the discharging acceleration channel 7, an instruction is sent out to enable the heavy object vehicle 8 to move in an accelerated way and be hung on the clamping hook 6, the clamping hook 6 penetrates through the groove of the heavy object vehicle 8 and is clamped on the two connecting rods of the heavy object vehicle 8, and when the heavy object vehicle 8 runs on the steel wire cable 4 to the discharging discharge channel 10, the heavy object vehicle is intercepted by the intercepting device at one end of the discharge channel and automatically unhooked, and moves to the designated position along a downhill.

During energy storage, the generator 2 is electrified to be changed into a motor to drive the steel wire cable 4 to move, after the downhill storage site 9 receives an instruction, the heavy vehicle 8 slides downwards to the downhill storage site 18 goods discharging channel according to the instruction and then slides to the energy storage goods loading channel 17 along the downhill according to the instruction, then slides to the 11 energy storage goods loading station along the downhill, the clamping hook 6 penetrates through a middle groove of the heavy vehicle 8 to be hung on two connecting rods when moving to the energy storage goods loading station, and therefore the heavy vehicle 8 moves to the mountain top, so that the heavy vehicle 8 is continuously conveyed to the designated position of the mountain top energy storage site 15 to wait for a discharge instruction.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. A gravity energy storage system for large-scale power station peak shaving usefulness, includes massif (1) and discharge track (14), its characterized in that: the energy storage device is characterized in that a mountain top energy storage place (15) and a mountain bottom storage place (9) are respectively machined on the upper side and the lower side of the mountain body (1), a discharge acceleration channel (7) and a discharge unloading channel (10) are respectively installed on the upper side and the lower side of the discharge track (14), the mountain top energy storage place (15) is communicated with the discharge track (14) through an energy storage unloading channel (16), an energy storage loading station (11) and an energy storage loading channel (17) are respectively installed on the two sides below the discharge track (14), the two sides of the mountain bottom storage place (9) are respectively connected with the energy storage loading channel (17) and the mountain bottom storage place unloading channel (18), a plurality of cable support rods (5) are fixedly connected to the surface of an inclined plane of the mountain body (1), a plurality of steel wire cable pulleys (20) are installed at the tail ends of the cable support rods (5), and steel wire cables (4) are wound on the outer walls of the steel wire cable pulleys (20), an upper rotary table (3) and a lower rotary table (13) are respectively wound on the upper side and the lower side of the outer wall of the steel wire cable (4), and an inner rotary shaft of the lower rotary table (13) is rotatably connected with a lower wheel disc support tower frame (12).

2. The gravity energy storage system for peak shaving of large power plants according to claim 1, characterized in that: a hill (19) is machined on the inclined surface of the mountain body (1).

3. The gravity energy storage system for peak shaving of large power plants according to claim 1, characterized in that: and a generator (2) is arranged above the mountain body (1).

4. A gravity energy storage system for peak shaving of large power plants according to claim 3, characterized in that: the input shaft of the generator (2) is connected with the rotating shaft of the upper rotating disc (3).

5. The gravity energy storage system for peak shaving of large power plants according to claim 1, characterized in that: and a plurality of hooks (6) are fixedly connected below the outer wall of the steel wire cable (4).

6. The gravity energy storage system for peak shaving of large power plants according to claim 1, characterized in that: a plurality of weight vehicles (8) are arranged above the mountain storage site (9) and the mountain top energy storage site (15).

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