CN115313445A - Heavy object energy storage power station - Google Patents

Abstract

The invention relates to a heavy object energy storage power station which comprises a rack and a plurality of energy storage units, wherein each energy storage unit comprises an electric power generation all-in-one machine, a rotary disc and a heavy object block, the electric power generation all-in-one machine is electrically connected with a power grid and is in transmission connection with the rotary disc, a guy cable is wound on the rotary disc and is connected with the heavy object block, an energy storage channel is further arranged on the rack corresponding to the lifting track of the heavy object block, two sides of the energy storage channel are limited by two parallel baffle plates, a limiting structure is arranged in each baffle plate, and when the heavy object block is lifted into the energy storage channel, the limiting structure can extend towards the direction of the energy storage channel and is clamped at the bottom of the heavy object block. The invention is provided with the limiting structure, so that the electric energy required by lifting heavy objects can be saved.

Description

Heavy object energy storage power station

technical field

The invention relates to the technical field of energy storage power stations, in particular to a heavy object energy storage power station.

Background technique

In recent years, with the development of new energy sources, the demand for energy storage power stations has been increasing day by day. At present, the power grid mainly builds large-scale pumped energy storage power plants to adjust the load of the power grid and realize peak shaving and valley filling. However, the current pumped storage power station has a long construction period, high cost, and is easily limited by location and resources, which cannot meet the development needs of energy storage power stations.

For this reason, those skilled in the art have proposed a heavy object energy storage power station. For example, the Chinese invention patent application with the publication number CN112531913A discloses a heavy object lifting energy storage power station. , and convert the potential energy of heavy objects into electrical energy during the peak of electricity consumption, and adjust the load of the power grid. However, in this patent application, there is a horizontal displacement between the low and high positions of the heavy object. After the heavy object is lifted to the high place, the heavy object needs to be stored in translation. During the horizontal movement of the heavy object, electric energy is consumed , but the potential energy of the heavy object does not increase, resulting in a waste of electric energy.

Contents of the invention

Aiming at the defects in the prior art, the technical problem to be solved by the present invention is to provide a heavy object energy storage power station, which can save the electric energy required for lifting heavy objects.

In order to solve the above technical problems, the present invention provides a heavy object energy storage power station, which includes a rack and several energy storage units, the energy storage unit includes a motor-generator integrated machine, a turntable and a heavy block, and the motor-generator integrated The machine is electrically connected to the power grid, and the motor-generator is connected to the turntable in transmission, the turntable is wound with a cable, and the cable is connected to the weight block, and the frame corresponds to the weight The lifting track of the block is also provided with an energy storage channel, the two sides of the energy storage channel are defined by two mutually parallel baffles, and a limiting structure is arranged inside the baffles, and when the weight block is lifted to the When inside the energy storage channel, the limiting structure can protrude toward the direction of the energy storage channel and be stuck against the bottom of the weight block.

In the heavy object energy storage power station of the present invention, an energy storage channel is added, and a limit structure is set in the energy storage channel, so that when the power consumption is low, the electric generator integrated machine can be used to drive the heavy object to rise, and the heavy object can After the block is lifted into place, the electric energy is converted into the potential energy storage of the heavy block, and in the process of lifting the heavy block, after the heavy block is lifted into place, its position can be limited by the limit structure; and during peak power consumption, It can release the limit structure of the heavy block, and the heavy block falls under the action of gravity, and drives the turntable to rotate through the cable, and then drives the motor-generator integrated machine to reverse and generate electricity, and convert the potential energy into electric energy and transmit it to the power grid , to adjust the load of the grid. It can be seen that, in the process of converting electric energy into potential energy, the present invention does not need to drive the heavy object to move horizontally to the placing platform for storage, thereby reducing the loss of electric energy.

Preferably, the heavy object energy storage power station of the present invention further includes a controller, the controller is electrically connected to the motor-generator and the limiting structure respectively; the limiting structure is an electric push rod, and the An accommodating cavity is provided on the baffle, and the accommodating cavity can fully accommodate the electric push rod in the retracted state. After the electric push rod is extended, it can be stuck against the bottom of the heavy object. After the power is cut off, the electric push rod can still maintain the extended state, effectively limiting the position of the heavy object.

Preferably, the rack includes two columns and a beam connected between the tops of the two columns, the energy storage unit is installed on the beam, and the baffle is connected to the beam.

Preferably, the two uprights are steel structures supported on the ground, and a sunken space for accommodating the heavy objects is provided on the ground. This kind of column structure is suitable for open terrain. The columns are all made of steel structure, and the cost is high. However, placing heavy objects in the sinking space can reduce the design length of the column, which is conducive to reducing costs.

Preferably, one of the columns is a steel structure supported on the ground, and the other column is defined by a mountain slope. This design structure is suitable for wider canyon terrain, and the cost of the power station can be effectively reduced by building beams on one side of the mountain slope and another steel structure column.

Preferably, both of the uprights are defined by a mountain slope. This design structure is suitable for narrow canyon terrain, and the cost of the power station can be greatly reduced by using the side slopes on both sides to build beams.

Preferably, the motor-generator integrated machine is electrically connected to the grid through an inverter, a transformer, and the grid in sequence.

Preferably, the stay cables are steel cables.

Description of drawings

In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings that need to be used in the description of the specific embodiments or the prior art. Throughout the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, elements or parts are not necessarily drawn in actual scale.

Fig. 1 is a schematic structural diagram of a heavy object energy storage power station according to Embodiment 1 of the present invention;

Fig. 2 is a structural schematic diagram of a position-limiting structure in Embodiment 1 of the present invention;

Fig. 3 is a schematic structural diagram of a heavy object energy storage power station according to Embodiment 2 of the present invention;

Fig. 4 is a schematic structural diagram of a heavy object energy storage power station according to Embodiment 3 of the present invention.

Reference signs:

1-electric generator; 2-heavy block; 3-cable; 4-column; 5-beam; 6-baffle; 7-electric push rod.

Detailed ways

Embodiments of the technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solutions of the present invention more clearly, and therefore are only examples, rather than limiting the protection scope of the present invention.

It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application shall have the usual meanings understood by those skilled in the art to which the present invention belongs.

Embodiment one

As shown in Figures 1 and 2, this embodiment discloses a heavy object energy storage power station, which includes a frame and a plurality of energy storage units, and the energy storage unit includes a motor-generator integrated machine 1, a turntable and a heavy object 2, The integrated motor-generator 1 is electrically connected to the power grid through an inverter, a transformer, and the integrated motor-generator 1 is connected to the turntable drive. If the turntable is fixedly connected to the output shaft of the integrated motor-generator, when the integrated motor-generator 1 rotates forward , can drive the output shaft to rotate, and the reverse rotation of the output shaft can drive the motor-generator integrated machine 1 to generate electricity. A dragline 3 is wound on the turntable, and the dragline 3 is specifically a steel cable, which is fixedly connected with the weight block 2 .

The frame includes two uprights 4 and a crossbeam 5 connected between the tops of the two uprights 4 , and the above-mentioned motor-generator integrated machine 1 and the turntable are installed on the crossbeam 5 . Specifically, an energy storage channel is also provided at the bottom of the crossbeam 5 corresponding to the lifting track of the weight block 2, and the two sides of the energy storage passage are limited by two mutually parallel baffle plates 6, and the top of the baffle plate 6 is connected to the crossbeam 5. Fixedly connected, and a limit structure is set in the baffle plate 6. When the weight block 2 is lifted into the energy storage channel, the limit structure can protrude toward the direction of the energy storage channel and be stuck against the bottom of the weight block 2.

The above-mentioned limiting structure is specifically the electric push rod 7, and an accommodation cavity is provided on the baffle plate 6, and the accommodation cavity can completely accommodate the electric push rod 7 in the retracted state.

The heavy object energy storage power station of this embodiment also includes a controller, which is electrically connected to the motor-generator integrated machine 1 and the electric push rod 7 respectively. When the power consumption is low, the controller controls the electric generator 1 to drive the heavy block 2 to rise, and after the heavy block 2 rises to the right position, it controls the electric push rod 7 located under the heavy block 2 to stretch out, and it is stuck on the heavy block. The bottom of the object block 2 blocks the landing of the heavy object 2. After the electric push rod 7 is stretched out, the electric push rod 7 can be controlled to be powered off to save electric energy. Under the action of no external force, the extended end of the electric push rod 7 will maintain Stretch out state, maintain weight block 2 in its lifting position. When the power consumption peak, the controller controls the electric push rod 7 to be energized and retracted, and the weight block 2 falls under the action of gravity, and the electric generator integrated machine 1 is driven by the turntable to reversely generate electricity, and the potential energy is converted into electric energy, thereby starting To the role of shaving peaks and filling valleys.

It should be noted that the power station of this embodiment is provided with multiple energy storage channels. In practice, each energy storage channel can be provided with only one energy storage unit, or 2-5 energy storage units. The energy unit includes an electric generator and a heavy block. The heavy blocks of the same energy storage channel are lifted and lowered in sequence, and arranged up and down in the energy storage channel, and multiple baffles 6 are set on both sides of the energy storage channel. The limit structure, the number of the limit structure is greater than or equal to the number of heavy objects, so as to fix the lifting position of multiple heavy objects.

In addition, the two columns 4 in this embodiment are both steel structures supported on the ground, and a sunken space for accommodating the heavy object 2 is opened on the ground. This column structure is suitable for open terrain, and the column 4 is made of steel structure, which is expensive, and the heavy block 2 is arranged in the sinking space, which can reduce the design length of the column 4, which is beneficial to reduce the cost.

Embodiment two

As shown in FIG. 3 , the structure of the heavy object energy storage power station in this embodiment is substantially the same as that in Embodiment 1, except that the structure of the column 4 is different.

In this embodiment, one of the columns 4 is a steel structure supported on the ground, and the other column 4 is defined by the slope of the mountain. This design structure is suitable for wider canyon terrain, and the cost of the power station can be effectively reduced by building beams on one side of the mountain slope and another steel structure column.

Embodiment Three

As shown in FIG. 4 , the structure of the heavy object energy storage power station of this embodiment is substantially the same as that of Embodiment 1, except that the structure of the column 4 is different.

In this embodiment, the two columns 4 are both defined by the slope of the mountain. This design structure is suitable for narrow canyon terrain, and the cost of the power station can be greatly reduced by building the beam 5 with the help of the mountain slopes on both sides.

In addition, in practice, the column 4 can also be discarded, and the beam 5 can be directly built on the top of the mine, and the depth of the mine can be used to meet the lifting height requirement of heavy objects.

In the description of the invention, numerous specific details are set forth. However, it is understood that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, systems and techniques have not been shown in detail in order not to obscure an understanding of this description.

In the description of this specification, descriptions referring to the terms "one embodiment", "some embodiments", "example", "specific examples", or "some examples" mean that specific features described in connection with the embodiment or example , system, material or feature is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the specific features, systems, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples and features of different embodiments or examples described in this specification without conflicting with each other.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still be Modifications are made to the technical solutions described in the foregoing embodiments, or equivalent replacements are made to some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention. It should be included within the scope of the claims and description of the present invention.

Claims (8)

1. The utility model provides a heavy object energy storage power station, includes frame and a plurality of energy storage unit, the energy storage unit includes electronic electricity generation all-in-one, carousel and heavy object piece, electronic electricity generation all-in-one is connected with the electric wire netting electricity, just electronic electricity generation all-in-one with the carousel transmission is connected, the winding has the cable on the carousel, this cable with the heavy object piece is connected, its characterized in that:

the lifting track of the heavy object block on the rack is also provided with an energy storage channel, two sides of the energy storage channel are limited by two parallel baffles, a limiting structure is arranged in each baffle, and when the heavy object block is lifted into the energy storage channel, the limiting structure can extend towards the direction of the energy storage channel and is clamped against the bottom of the heavy object block.

2. The weight energy storage power plant of claim 1, wherein:

the controller is electrically connected with the electric power generation all-in-one machine and the limiting structure respectively;

the limiting structure is an electric push rod, an accommodating cavity is formed in the baffle, and the accommodating cavity can completely accommodate the electric push rod in a retraction state.

3. The weight energy storage power plant of claim 1, wherein:

the frame includes two stands and connects two the crossbeam between the stand top, install on the crossbeam the energy storage unit, the baffle is connected on the crossbeam.

4. The weight energy storage power plant of claim 3, wherein:

two the stand is the steel construction that supports on ground, and has seted up subaerial and held the space that sinks of heavy object piece.

5. The weight energy storage power plant of claim 3, wherein:

one of the upright columns is a steel structure supported on the ground, and the other upright column is limited by a mountain slope.

6. The weight energy storage power plant of claim 3, wherein:

and the two upright columns are limited by mountain slopes.

7. The weight energy storage power plant of claim 1, wherein:

the electric power generation all-in-one machine is electrically connected with the power grid through the inverter, the transformer and the power grid in sequence.

8. The weight energy storage power plant of claim 1, wherein:

the pull rope is a steel cable.

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