Containerized Energy Storage System

Abstract

The utility model relates to the technical field of energy storage, and discloses a container energy storage system, including: a plurality of energy storage towers, at least two of which correspond to different types of containers, the energy storage towers including: a frame, a placement area is provided on the frame, the placement area includes a plurality of energy storage areas arranged at the upper part and a plurality of storage areas arranged at the lower part, the energy storage area is suitable for storing the potential energy of the container; a plurality of transport tracks connected to the outer side of the frame; a lifting device movably arranged on the top of the frame along the transport track, one end of which is suitable for connecting the container; a plurality of transport devices movably arranged on the transport track. By configuring the container energy storage system to include a plurality of energy storage towers, and at least two of which correspond to different types of containers, the energy storage towers can be stacked according to the vacant areas of the port terminal, without the need to occupy a large piece of land at the port terminal to build the container energy storage system, thereby reducing the occupied area of ​​the large piece of land at the port terminal and reducing energy consumption.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage, and in particular to a container energy storage system. Background Art

[0002] Low-carbon and zero-carbon ports are currently a hot topic in the port industry. Usually, the port energy consumption is electrified, fuel equipment is converted into electric-driven equipment, and then the port's power supply is changed to wind, photovoltaic, wave and other clean energy power generation, so as to achieve complete green electrification of port energy consumption. However, wind, photovoltaic, wave and other power stations are greatly affected by the environment, and the power generation is unstable, which poses a risk to the supply of port power grids. Therefore, it is necessary to establish a power storage system supporting the port. Clean and efficient renewable energy technology is the only way for human society to achieve sustainable and high-quality development. Power storage technology is a key technology to achieve grid stability and intelligence, efficient use of renewable energy, and electrified transportation.

[0003] Since containers need to consume a lot of energy to lift them to a certain height during stacking and extraction, port container cranes need to consume a lot of energy during loading and unloading, and part of the energy is converted into the potential energy of the container. When the container falls, the stored potential energy is usually dissipated in vain, resulting in high energy consumption and low energy utilization in port operations. With the national port container throughput of 296 million TEUs in 2022 and a total mass of 20t, if these containers are applied to the power storage system, a total of 725 million kWh of electricity can be stored at a storage height of 50 meters and an energy conversion efficiency of 90%. According to the requirement that the ratio of new energy power generation to energy storage power is 1:3, if the above-mentioned container yard is transformed into a container energy storage system, 2.175 billion kWh of new energy power generation can be absorbed. Therefore, container energy storage technology has broad application prospects.

[0004] An energy storage system is disclosed in the prior art, which proposes that the potential energy of containers can be converted into electrical energy for storage and use. However, the energy storage system is relatively large in size, and the existing port terminals still need to occupy a large area of ​​land for container yard energy storage. For example, the storage period of ordinary containers is usually 5 days. For a port with an annual throughput of 3 million TEUs (Twenty-foot Equivalent Units), the number of containers in the terminal yard can be around 60,000 TEUs. Therefore, the existing port terminals will occupy a large area of ​​land to build container yards and stack containers, which will cause a large amount of land resources to be occupied, and all containers are placed on the energy storage system, which is inconvenient to take and put. Utility Model Content

[0005] In view of this, the utility model provides a container energy storage system to solve the problems that the existing container yard occupies a large area, is inconvenient to take and put, and has high energy consumption of the containers.

[0006] The utility model provides a container energy storage system, comprising:

[0007] A plurality of energy storage towers, at least two of which correspond to containers of different types, each of which comprises:

[0008] A frame, wherein a placement area is provided on the frame, and the placement position of the placement area is suitable for placing the container, and the placement area includes a plurality of energy storage areas arranged at the upper part and a plurality of storage areas arranged at the lower part, and the energy storage areas are suitable for storing the potential energy of the container;

[0009] A plurality of transport tracks connected to the outer side of the frame;

[0010] A lifting device, movably arranged on the top of the frame along the transport track, one end of which is suitable for connecting to the container;

[0011] A plurality of transport devices are movably arranged on the transport track and are suitable for transporting the container between the lifting device and the placement position.

[0012] Beneficial effects: By configuring the container energy storage system to consist of multiple energy storage towers, and at least two energy storage towers correspond to different types of containers, different energy storage towers can be set up at the port terminal according to different types of containers, making it convenient to take and put containers without confusion, and the energy storage towers can be stacked according to the vacant areas of the port terminal without the need to occupy large tracts of land at the port terminal to build the container energy storage system, thereby reducing the occupied area of ​​large tracts of land at the port terminal, and each energy storage tower includes a frame with an energy storage area located at the upper part of the frame, and the container can be placed in the energy storage area for energy storage under the transportation of a lifting device and a transport device, thereby reducing energy consumption.

[0013] In an optional embodiment, a plurality of the energy storage towers are arranged at intervals and connected to each other at the tops;

[0014] And / or, a plurality of the energy storage towers are arranged adjacent to each other side by side and are connected to each other at least at the tops.

[0015] Beneficial effect: By arranging multiple energy storage towers at intervals and connecting the tops to each other, the connection strength between the multiple energy storage towers can be ensured. At the same time, the gaps between the energy storage towers can be used for the passage of container trucks at the port terminal, facilitating the transportation of containers.

[0016] In an optional embodiment, the types of containers include at least two of heavy containers, extra heavy containers, empty containers, hazardous chemicals containers and refrigerated containers.

[0017] In an optional embodiment, the frame includes at least one transfer area, and the transfer area is arranged below the storage area.

[0018] In an optional implementation, the container energy storage system includes:

[0019] a dispatching system, the dispatching system being adapted to obtain the type and storage time of the container;

[0020] A control system is connected to the scheduling system, and the control system controls the placement position of the container according to the storage time.

[0021] In an optional embodiment, if the storage time is less than a preset time, the control system controls the container to be placed in the transfer area;

[0022] And / or, if the storage time is greater than a preset time, the control system controls the container to be placed in the energy storage area or the transfer area.

[0023] Beneficial effect: By including a dispatching system and a control system in the container energy storage system, and the control system can control the placement of the container according to the storage time of the container, if the storage time is less than the preset time, it means that the container has been parked at the terminal for a short time, and there is no need to store energy for it, and it can be temporarily placed in the transit area waiting for departure; if the storage time is greater than the preset time, it means that the container has been parked at the terminal for a long time, and it can be directly placed in the energy storage area as a supplement to the outbound container, so that the power capacity of the container energy storage system remains stable, or it can be placed in the transit area waiting for arrangement and used as a spare container to be stored.

[0024] In an optional implementation, the preset time is one day.

[0025] In an optional embodiment, the transport track includes a first track and a second track, and the first track and the second track extend in different directions;

[0026] The transport device comprises:

[0027] A first transport mechanism, moving along the first track;

[0028] The second transport mechanism is arranged above the first transport mechanism and moves along the second track. The second transport mechanism is suitable for placing the container.

[0029] Beneficial effect: By configuring the transport device to include a first transport mechanism and a second transport mechanism, and the first transport mechanism and the second transport mechanism can move in different directions, the setting position of the container can be adjusted more accurately, and the container can be accurately transported to the desired placement position.

[0030] In an optional embodiment, the placement position includes at least two spaced-apart beams;

[0031] The second transport mechanism is movably arranged below the cross beam, the spacing between the cross beams is larger than the size of the second transport mechanism and smaller than the size of the container, the second transport mechanism is provided with a lifting device, the lifting device is suitable for placing the container, and the lifting device is suitable for lifting and lowering so that the container is placed on the cross beam or separated from the cross beam.

[0032] Beneficial effect: By setting the placement position to include spaced beams, the structure of the frame is simpler. By movably arranging the second transport mechanism under the beam, it is convenient for the second transport mechanism to drive the container to move between different placement positions, and the lifting device can accurately place the container on the beam of the placement position, so the structure is simpler.

[0033] In an optional embodiment, the lifting device comprises:

[0034] A lifting body, movably arranged on the transport track;

[0035] A first driving mechanism, provided on the lifting body, adapted to drive the lifting device to move along a first direction;

[0036] A second driving mechanism is provided on the lifting body;

[0037] The lifting mechanism is arranged on the second driving mechanism and is suitable for moving along a second direction driven by the second driving mechanism, and the first direction is different from the second direction. The lifting mechanism is suitable for connecting the container and driving the container to rise and fall.

[0038] Beneficial effects: By configuring the lifting device to include a lifting body, a first drive mechanism, a second drive mechanism and a lifting mechanism, the lifting mechanism can drive the container to rise and fall, and the second drive mechanism can drive the lifting mechanism to move along the second direction, thereby adjusting the specific position of the container, and the structure is relatively simple.

[0039] In an optional embodiment, the lifting mechanism includes:

[0040] A lifting drive assembly is provided on the second drive mechanism;

[0041] A sling has one end connected to the lifting drive assembly and the other end suitable for connecting to the container.

[0042] In an optional embodiment, the lifting drive assembly includes:

[0043] A lifting drive mechanism, provided on the second drive mechanism;

[0044] The transmission mechanism is connected to the lifting drive mechanism and the sling respectively, and is suitable for the transmission mechanism to drive the sling to rise and fall under the drive of the lifting drive mechanism.

[0045] In an optional embodiment, the lifting drive mechanism is a generator-motor integrated machine;

[0046] And / or, the transmission mechanism includes a drum connected to the lifting drive mechanism, the drum is provided with a telescopic rope, and the telescopic rope is connected to the sling.

[0047] Beneficial effect: By setting the lifting drive mechanism as an all-in-one generator and electric machine, it can be used as a motor when it is necessary to store energy in the container, drive the container to a high energy storage area, convert the electrical energy into the potential energy of the container for storage, and use it as a generator when it is necessary to release energy. The container and the sling fall under the action of potential energy, and the retractable rope pulls the drum to rotate in the opposite direction, thereby driving the generator to rotate and generate electricity, converting the potential energy of the container into electrical energy for external discharge. That is, the lifting drive mechanism can serve two purposes in one machine, and the structure is simpler.

[0048] In an optional embodiment, the energy storage area and the storage area are respectively provided with multiple layers;

[0049] And / or, the number of layers of the energy storage area and the storage area are arranged in one-to-one correspondence;

[0050] And / or, the frame includes a heightened area, and the heightened area is arranged between the energy storage area and the storage area.

[0051] Beneficial effects: By setting up multiple layers of the energy storage area and the storage area respectively, and setting the number of layers of the energy storage area and the storage area in one-to-one correspondence, in actual use, the height of the container falling or rising can be guaranteed to be consistent, so that the potential energy of the container is kept consistent, and the stability of power generation of the container energy storage system can be guaranteed; by setting the frame to include a heightened area, the heightened area can further increase the potential energy of the container and increase the storage capacity.

[0052] In an optional embodiment, each layer of the energy storage area and each layer of the storage area is correspondingly provided with the transport track, and each layer of the energy storage area and each layer of the storage area is correspondingly provided with at least one transport device.

[0053] In an optional embodiment, the placement area is provided with a plurality of columns, the frame includes a plurality of columns of transport channels, each column of the placement area is arranged corresponding to each column of the transport channels, and the lifting device is provided on the top of the transport channels.

[0054] Beneficial effect: By configuring the frame to include multiple columns of transport channels, and the transport channels are configured corresponding to the placement areas, a lifting device is provided on the top of the transport channels, which can facilitate the lifting device to lift the container in the vertical direction and transport the container to the transport device on each layer, thereby facilitating the horizontal transportation and stacking of the container. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0056] Figure 1 This is a front view of a container energy storage system according to an embodiment of the utility model;

[0057] Figure 2 for Figure 1 A side view of the container energy storage system shown;

[0058] Figure 3 It is a top view of the container energy storage system;

[0059] Figure 4 This is a top view of the energy storage tower;

[0060] Figure 5 This is the front view of the lifting device;

[0061] Figure 6 It is a top view of the lifting device;

[0062] Figure 7 is a front view of the transport device;

[0063] Figure 8 is a side view of the transport device;

[0064] Fig. 9 A top view of the transport device.

[0065] Description of reference numerals:

[0066] 1-energy storage tower; 2-lifting device; 3-energy storage area; 4-storage area; 5-container; 6-transit area; 7-second track; 8-first transport mechanism; 9-second transport mechanism; 10-lifting body; 11-first drive mechanism; 12-second drive mechanism; 13-spreader; 14-lifting drive mechanism; 15-drum; 16-telescopic rope; 17-heightening area; 18-transport channel; 19-reducer; 20-lifting mechanism; 21-container truck; 22-transport device; 23-lifting device. DETAILED DESCRIPTION

[0067] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0068] Combine the following Figures 1 to 9 , describing an embodiment of the utility model.

[0069] According to an embodiment of the utility model, a container energy storage system is provided, comprising: a plurality of energy storage towers 1, at least two energy storage towers 1 corresponding to different types of containers 5, each energy storage tower 1 comprising: a frame, a placement area is provided on the frame, the placement position of the placement area is suitable for placing the container 5, the placement area comprises a plurality of energy storage areas 3 arranged at the upper part and a plurality of storage areas 4 arranged at the lower part, the energy storage area 3 is suitable for storing the potential energy of the container 5; a plurality of transport tracks connected to the outer side of the frame; a lifting device 2, movably arranged on the top of the frame along the transport track, one end of which is suitable for connecting the container 5; a plurality of transport devices 22, movably arranged on the transport track, suitable for transporting the container 5 between the lifting device 2 and the placement position.

[0070] By configuring the container energy storage system to include multiple energy storage towers 1, and at least two energy storage towers 1 corresponding to different types of containers 5, different energy storage towers 1 can be set up at the port terminal according to different types of containers 5, so that the containers can be conveniently taken and placed without being confused, and the energy storage towers 1 can be stacked according to the vacant areas of the port terminal without the need to occupy large tracts of land at the port terminal to build the container 5 energy storage system, thereby reducing the occupied area of ​​large tracts of land at the port terminal, and each energy storage tower 1 includes a frame, on which an energy storage area 3 is provided at the top, and the container 5 can be placed in the energy storage area 3 for energy storage under the transportation of the lifting device 2 and the transportation device 22, thereby reducing energy consumption.

[0071] like Figure 1 and Figure 2As shown, two adjacent energy storage towers 1 are spaced apart and connected to each other at the top. By spacing apart two adjacent energy storage towers 1 and connecting to each other at the top, the connection strength between the multiple energy storage towers 1 can be ensured, and the gaps between the energy storage towers 1 can be used for the passage of container trucks 21 on the port terminal, facilitating the transportation of containers 5. As a convertible embodiment, multiple energy storage towers 1 can also be spaced apart and connected to each other at the top.

[0072] Of course, in other embodiments, if the vacant area of ​​the port terminal is large, multiple energy storage towers 1 can be arranged side by side, and the tops, middles and bottoms of two adjacent energy storage towers 1 are interconnected, or only the tops of two adjacent energy storage towers 1 are connected to each other.

[0073] The types of containers 5 in this embodiment include heavy containers, overweight containers, empty containers, hazardous chemicals containers and refrigerated containers. Here, heavy containers refer to containers of normal weight, and overweight containers refer to containers with a maximum gross weight (MGW) exceeding 30480 kg. As a convertible embodiment, the types of containers 5 may include at least two of heavy containers, overweight containers, empty containers, hazardous chemicals containers and refrigerated containers, which may be specifically divided according to the types of containers received in the port terminal, and no excessive restrictions are made here.

[0074] The frame in this embodiment includes a transfer area 6, which is arranged below the storage area 4. Figure 1 As shown, the transfer area 6 is arranged at the bottom of the frame. As a convertible embodiment, it is also possible that no separate transfer area 6 is arranged on the frame, but the bottom of the storage area 4 is used as the transfer area 6.

[0075] In order to facilitate the deployment of containers 5, the container energy storage system includes: a dispatching system, which is suitable for obtaining the type and storage time of the container 5; and a control system, which is connected to the dispatching system and controls the placement of the container 5 according to the storage time. The dispatching system here can be a dispatching system of a port terminal or a separately set dispatching system.

[0076] Specifically, the control system can control which energy storage tower 1 the container 5 is placed on according to the type of the container 5 , and control the specific position of the energy storage tower 1 where the container 5 is placed according to the storage time of the container 5 .

[0077] The container energy storage system is both an energy storage power station used for peak load shifting and valley filling of clean energy power generation, and a storage site for circulating containers 5. Its energy storage unit is the container 5 placed in the port terminal yard. During the normal operation of the port terminal, the container 5 needs to be constantly in and out of the port, and whether the container energy storage system releases energy depends on the energy demand of the port terminal. Therefore, an intelligent dispatching system and control system are set up to balance the operation of the energy storage power station and the entry and exit of the container 5, and to ensure the energy storage capacity without affecting the normal entry and exit of the container 5.

[0078] Usually, the electric energy stored in the container energy storage system needs to meet the energy consumption of the port terminal for 4 hours, and the threshold for the container 5 to leave the port can be set accordingly.

[0079] Specifically, if the storage time is less than the preset time, the control system controls the container 5 to be placed in the transfer area 6; if the storage time is greater than the second preset time, the control system controls the container 5 to be placed in the energy storage area 3 or the transfer area 6. The preset time is one day. By including a dispatching system and a control system in the container energy storage system, and the control system can control the placement of the container 5 according to the storage time of the container 5, such as when the storage time is less than the preset time, it means that the container 5 is parked at the dock for a short time, and there is no need to store energy for it, and it can be temporarily placed in the transfer area 6 to wait for departure. If the storage time is greater than the preset time, it means that the container 5 is parked at the dock for a long time, and it can be directly placed in the energy storage area 3 as a supplement to the outbound container 5, so that the electric energy capacity of the container energy storage system remains stable, or it can be placed in the transfer area 6 to wait for arrangement and used as a spare container 5 to be stored. As a convertible implementation method, it can also be that the preset time is set to other times, and there is no excessive restriction here.

[0080] like Figure 1 As shown, the energy storage area 3 and the storage area 4 in this embodiment are respectively provided with multiple layers, and the number of layers of the energy storage area 3 and the storage area 4 are set in a one-to-one correspondence. By respectively providing multiple layers of the energy storage area 3 and the storage area 4, and providing the number of layers of the energy storage area 3 and the storage area 4 in a one-to-one correspondence, in actual use, it is possible to ensure that the height of the container 5 falling or rising is consistent, so that the potential energy of the container 5 remains consistent, and the stability of power generation of the container energy storage system can be ensured. Specifically, the energy storage area 3 and the storage area 4 can be provided with 5 layers respectively. As a convertible implementation method, it is also possible that the number of layers of the energy storage area 3 and the storage area 4 are not set in a one-to-one correspondence. As a convertible implementation method, it is also possible that the specific number of layers of the energy storage area 3 and the storage area 4 is not limited, such as 3 layers, 8 layers, or it can be specifically determined according to construction cost, geological foundation, energy storage capacity, etc.

[0081] That is, the upper energy storage area 3 is provided with n layers, and the lower storage area 4 is also provided with n layers. To ensure the stability of power generation of the container energy storage system, the potential energy of each container 5 is kept consistent. Therefore, the container 5 on the mth layer in the upper energy storage area 3 is stored in the mth layer of the lower storage area 4 after releasing energy. That is, the specific number of layers of the energy storage area 3 and the storage area 4 where the container 5 is located corresponds one to one, ensuring that the height of the container 5 falling or rising is consistent.

[0082] like Figure 1 As shown, the frame includes a heightened area 17, and the heightened area 17 is arranged between the energy storage area 3 and the storage area 4. By configuring the frame to include the heightened area 17, the heightened area 17 can further increase the potential energy of the container 5 and increase the storage capacity.

[0083] The heightened area 17 can be set to a height equivalent to the height of the multi-layer energy storage area 3, and the heightened area 17 is only used to increase the height, and no container 5 is placed on it. There is no restriction on the specific number of layers of the heightened area 17. Of course, in some embodiments, the heightened area 17 may not be set.

[0084] The container energy storage system adopts a multi-layer storage structure, which is divided into an upper energy storage area 3, a middle heightened area 17, and a lower storage area 4. The middle heightened area 17 is mainly used to increase the potential energy of the container 5 in the upper energy storage area 3. The upper energy storage area 3 is used to store containers 5 with certain potential energy and belongs to the energy storage area. The lower storage area 4 is for placing the containers 5 after the energy is released.

[0085] In order to conveniently place the container 5 in the placement areas on different layers, each layer of the energy storage area 3 and each layer of the storage area 4 is provided with a transport track with different extension directions, and each layer of the energy storage area 3 and each layer of the storage area 4 is provided with a transport device 22. As a convertible embodiment, each layer of the energy storage area 3 and each layer of the storage area 4 can also be provided with multiple transport devices 22.

[0086] like Figure 2 As shown, the placement area is provided with multiple columns, the frame includes multiple columns of transport channels 18, each column of the placement area is provided corresponding to each column of the transport channels 18, and a lifting device 2 is provided on the top of the transport channels 18. By configuring the frame to include multiple columns of transport channels 18, and the transport channels 18 are provided corresponding to the placement area, and a lifting device 2 is provided on the top of the transport channels 18, the lifting device 2 can be used to lift the container 5 in the vertical direction, and transport the container 5 to the transport device 22 on each layer, so as to facilitate the horizontal transportation and stacking operation of the container 5.

[0087] The transport track in this embodiment includes a first track and a second track 7, and the first track and the second track 7 extend in different directions. Specifically, the first track and the second track 7 extend in perpendicular directions, wherein the first track extends in a direction perpendicular to the paper surface, and the second track 7 extends in a direction parallel to the paper surface. Figure 2 As shown, the second rail 7 extends in the left-right direction, that is, extends transversely.

[0088] The transport device 22 includes: a first transport mechanism 8, which moves along the first track; a second transport mechanism 9, which is arranged above the first transport mechanism 8 and moves along the second track 7, and the second transport mechanism 9 is suitable for placing the container 5. By configuring the transport device 22 to include the first transport mechanism 8 and the second transport mechanism 9, and the first transport mechanism 8 and the second transport mechanism 9 can move in different directions, the setting position of the container 5 can be adjusted more accurately, and the container 5 can be accurately transported to the placement position where it is to be placed.

[0089] Specifically, Figure 7-Figure 9 As shown, the transport device 22 is a double-layer structure, the first transport mechanism 8 is a first transport trolley, the second transport structure is a second transport trolley, the two transport trolleys are stacked, and the movement directions are perpendicular to each other. The first transport trolley is used to carry the second transport trolley and the container 5, and the second transport trolley is used to carry the container 5.

[0090] The placement position in this embodiment includes two spaced beams; the second transport trolley is movably arranged below the beams, the spacing between the beams is larger than the size of the second transport trolley and smaller than the size of the container 5, and the second transport trolley is provided with a lifting device 23, which is suitable for placing the container 5, and the lifting device 23 is suitable for lifting so that the container 5 is placed on the beam or separated from the beam. By setting the placement position to include spaced beams, the structure of the frame is relatively simple, and by movably arranging the second transport trolley below the beam, it is convenient for the second transport trolley to drive the container 5 to travel through different placement positions, and the lifting device 23 can accurately place the container 5 on the beam of the placement position, and the structure is relatively simple.

[0091] Specifically, the lifting device 23 is a hydraulic lifting device, which can lift or lower the container 5 as needed.

[0092] When the lifting device 2 lifts the container 5 to a specified height, such as the height of a placement area corresponding to a certain layer, the transport device 22 moves to the bottom of the lifting device 2. At this time, the lifting device 2 places the container 5 on the second transport trolley. The hydraulic jacking device on the second transport trolley lifts the container 5. The first transport trolley moves along the first track to the track corresponding to the placement position, and then the second transport trolley moves along the second track 7 to the placement position. The container 5 is placed on the beam through the contraction of the hydraulic jacking device, completing the energy storage operation of the container 5. The operation of the container 5 during transfer is the opposite.

[0093] The lifting device 2 in this embodiment is a crane, which is used to unload the container 5 from the container truck 21, or place it on the container truck 21, and can also be used for the transfer operation of the container 5, mainly for the external transportation of the container 5.

[0094] like Figure 5 and Figure 6 As shown, the lifting device 2 specifically includes: a lifting body 10, which is movably arranged on the transport track; a first driving mechanism 11, which is arranged on the lifting body 10 and is suitable for driving the lifting device 2 to move along a first direction; a second driving mechanism 12, which is arranged on the lifting body 10; a lifting mechanism 20, which is arranged on the second driving mechanism 12 and is suitable for moving along a second direction driven by the second driving mechanism 12, and the first direction is different from the second direction, and the lifting mechanism 20 is suitable for connecting the container 5 and driving the container 5 to rise and fall. By setting the lifting device 2 to include the lifting body 10, the first driving mechanism 11, the second driving mechanism 12 and the lifting mechanism 20, the lifting mechanism 20 can drive the container 5 to rise and fall, and the second driving mechanism 12 can drive the lifting mechanism 20 to move along the second direction, thereby adjusting the specific position of the container 5, and the structure is relatively simple.

[0095] The lifting body 10 is a rectangular frame structure. The first driving mechanism 11 is arranged on the short side of the lifting body 10 and moves in a direction parallel to the short side. The second driving mechanism 12 is arranged on the long side of the lifting body 10 and moves in a direction parallel to the long side. That is, the extension direction of the short side is the first direction, and the extension direction of the long side is the second direction.

[0096] like Figure 5 As shown, the second direction is Figure 5 The first direction is the direction perpendicular to the paper surface.

[0097] There are many specific forms of the first driving mechanism 11 and the second driving mechanism 12. In this embodiment, the first driving mechanism 11 is a large car, and the second driving mechanism 12 is a small car, wherein the wheels of the small car are in contact with the lifting body 10, and the small car moves along the track of the long side of the lifting body 10. Of course, in other embodiments, the first driving mechanism 11 and the second driving mechanism 12 can also be any driving mechanism that can drive the lifting device 2 to move, and there is no excessive restriction here.

[0098] The lifting mechanism 20 includes: a lifting drive assembly, which is arranged on the second drive mechanism 12; a sling 13, one end of which is connected to the lifting drive assembly, and the other end is suitable for connecting to the container 5.

[0099] Specifically, the lifting drive assembly includes: a lifting drive mechanism 14, which is arranged on the second drive mechanism 12; a transmission mechanism, which is respectively connected to the lifting drive mechanism 14 and the sling 13, and is suitable for the transmission mechanism to drive the sling 13 to rise and fall under the drive of the lifting drive mechanism 14.

[0100] like Figure 5 As shown, the transmission mechanism in this embodiment includes a drum 15 connected to the lifting drive mechanism 14, and a telescopic rope 16 is provided on the drum 15, and the telescopic rope 16 is connected to the sling 13. Specifically, the telescopic rope 16 is a steel wire rope, and the transmission mechanism also includes a reducer 19 and a coupling. The lifting drive mechanism 14 is connected to the input end of the reducer 19 through the coupling, and the output end of the reducer 19 is connected to the drum 15 through the coupling. The drum 15 is wound with a steel wire rope, and the other end of the steel wire rope is connected to the sling 13.

[0101] The lifting drive mechanism 14 in this embodiment is a generator-electric integrated machine. By setting the lifting drive mechanism 14 as a generator-electric integrated machine, it can be used as a motor when it is necessary to store energy for the container 5, drive the container 5 to be lifted to the high energy storage area 3, convert the electrical energy into the potential energy of the container 5 for storage, and use it as a generator when it is necessary to release energy. The container 5 and the sling 13 fall under the action of potential energy, and the drum 15 is pulled by the telescopic rope 16 to rotate in the opposite direction, thereby driving the generator to rotate and generate electricity, converting the potential energy of the container 5 into electrical energy for external discharge, such as supplying electrical energy to the distribution network, that is, the lifting drive mechanism 14 can be used for two purposes, and the structure is simpler.

[0102] Containers 5 are usually stacked in different areas according to their types at port terminals, and the storage conditions and storage times of different types of containers 5 are different. The storage period of ordinary heavy containers is generally 5 days; hazardous chemical containers are usually stored separately, and the storage period is generally 1-2 days; refrigerated containers need to be powered on in real time to ensure the refrigeration effect; the number of stacking layers of empty containers can be set to be more.

[0103] However, the land resources at the port terminal are limited. In order to increase the energy storage capacity of the container energy storage system, increase the height of the container energy storage system, and save the land resources of the port terminal, a modular structure of an energy storage tower 1 is adopted to store containers 5. One energy storage tower 1 can be used as an independent energy storage station, or multiple energy storage towers 1 can be arranged in an array in a certain way and connected together at the top of the energy storage tower 1 to improve the structural stability of the entire container energy storage system.

[0104] The modular energy storage tower 1 can effectively utilize the scattered areas of the port terminal without occupying a large amount of concentrated land. Based on the existing container storage areas of the port terminal, corresponding energy storage towers 1 are established respectively, and the containers 5 used by the energy storage towers 1 are selected from the areas where they are located, avoiding the mixing of different types of containers 5 and causing safety hazards. Different energy storage towers 1 can be formulated according to the type of container 5. The energy storage tower of an empty container can appropriately increase the overall height, increase the storage capacity, and the building structure can also be appropriately lightened; the energy storage tower 1 of a refrigerated container needs to be connected to more electricity to ensure the refrigeration of the refrigerator; hazardous chemical containers can be used selectively, etc. Formulating different types of energy storage towers 1 can also save construction costs to the maximum extent.

[0105] The container energy storage system in this embodiment is a three-dimensional storage container energy storage system. By establishing a three-dimensional storage container energy storage system, the existing conditions of the port terminal are fully utilized, the energy consumption of loading and unloading containers at the port terminal is saved, and the land utilization rate is improved. In the three-dimensional storage container energy storage system, the containers 5 are uniformly stored on the frame, and there will be no box turning phenomenon like the traditional yard, which improves the transfer efficiency of the containers 5. At the same time, using the container 5 as the energy storage carrier of the energy storage power station effectively reduces the construction cost of the energy storage power station, improves the power utilization rate of the port terminal, and builds the port terminal into an energy hub.

[0106] The height of the container energy storage system in this embodiment can be determined according to the bearing capacity of the foundation, the capacity of the container energy storage station, etc., to ensure that the container 5 obtains enough potential energy during storage. The frame of the container 5 is a container storage frame, which adopts a semi-enclosed frame structure. The container 5 is stored on the frame, and there is no direct contact between the containers 5, so that the number of stacking layers of the containers 5 is not limited by the strength of the containers 5 themselves.

[0107] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A container energy storage system, characterized in that: include: A plurality of energy storage towers (1), wherein at least two of the energy storage towers (1) correspond to containers (5) of different types, and each of the energy storage towers (1) comprises: A frame, wherein a placement area is provided on the frame, wherein the placement position of the placement area is suitable for placing the container (5), wherein the placement area comprises a plurality of energy storage areas (3) arranged at the upper part and a plurality of storage areas (4) arranged at the lower part, wherein the energy storage areas (3) are suitable for storing the potential energy of the container (5); A plurality of transport tracks connected to the outer side of the frame; A lifting device (2) is movably arranged on the top of the frame along the transport track, and one end of the lifting device is suitable for connecting to the container (5); A plurality of transport devices (22) are movably arranged on the transport track and are suitable for transporting the container (5) between the lifting device (2) and the placement position.

2. The container energy storage system according to claim 1, characterized in that: A plurality of the energy storage towers (1) are arranged at intervals and connected to each other at the tops; And / or, a plurality of the energy storage towers (1) are arranged adjacent to each other side by side, and at least the tops are connected to each other.

3. The container energy storage system according to claim 1, characterized in that: The types of containers (5) include at least two of heavy containers, extra heavy containers, empty containers, hazardous chemicals containers and refrigerated containers.

4. The container energy storage system according to any one of claims 1 to 3, characterized in that: The frame comprises at least one transfer area (6), and the transfer area (6) is arranged below the storage area (4).

5. The container energy storage system according to claim 4, characterized in that: The container energy storage system comprises: A dispatching system, the dispatching system being adapted to obtain the type and storage time of the container (5); A control system is connected to the scheduling system, and the control system controls the placement position of the container (5) according to the storage time.

6. The container energy storage system according to claim 5, characterized in that: If the storage time is less than a preset time, the control system controls the container (5) to be placed in the transfer area (6); And / or, if the storage time is greater than a preset time, the control system controls the container (5) to be placed in the energy storage area (3) or the transfer area (6).

7. The container energy storage system according to claim 6, characterized in that: The preset time is one day.

8. The container energy storage system according to any one of claims 1 to 3, characterized in that: The transport track comprises a first track and a second track (7), wherein the first track and the second track (7) extend in different directions; The transport device (22) comprises: A first transport mechanism (8) moves along the first track; The second transport mechanism (9) is arranged above the first transport mechanism (8) and moves along the second track (7). The second transport mechanism (9) is suitable for placing the container (5).

9. The container energy storage system according to claim 8, characterized in that: The placement position includes at least two beams arranged at intervals; The second transport mechanism (9) is movably arranged below the cross beam, the spacing between the cross beams is larger than the size of the second transport mechanism (9) and smaller than the size of the container (5), the second transport mechanism (9) is provided with a lifting device (23), the lifting device (23) is suitable for placing the container (5), and the lifting device (23) is suitable for lifting and lowering so that the container (5) is placed on the cross beam or separated from the cross beam.

10. The container energy storage system according to any one of claims 1 to 3, characterized in that: The lifting device (2) comprises: A lifting body (10) movably arranged on the transport track; A first driving mechanism (11), arranged on the lifting body (10), adapted to drive the lifting device (2) to move along a first direction; A second driving mechanism (12) is arranged on the lifting body (10); A lifting mechanism (20) is arranged on the second driving mechanism (12) and is suitable for moving along a second direction under the drive of the second driving mechanism (12), and the first direction is different from the second direction. The lifting mechanism (20) is suitable for connecting to the container (5) and driving the container (5) to rise and fall.

11. The container energy storage system according to claim 10, characterized in that: The lifting mechanism (20) comprises: A lifting drive assembly, arranged on the second drive mechanism (12); A sling (13) has one end connected to the lifting drive assembly and the other end suitable for connecting to the container (5).

12. The container energy storage system according to claim 11, characterized in that: The lifting drive assembly comprises: A lifting drive mechanism (14) is arranged on the second drive mechanism (12); The transmission mechanism is connected to the lifting drive mechanism (14) and the sling (13) respectively, and is suitable for the transmission mechanism to drive the sling (13) to rise and fall under the drive of the lifting drive mechanism (14).

13. The container energy storage system according to claim 12, characterized in that: The lifting drive mechanism (14) is a generator and motor-electric integrated machine; And / or, the transmission mechanism comprises a drum (15) connected to the lifting drive mechanism (14), the drum (15) is provided with a telescopic rope (16), and the telescopic rope (16) is connected to the sling (13).

14. The container energy storage system according to any one of claims 1 to 3, characterized in that: The energy storage area (3) and the storage area (4) are respectively provided with multiple layers; And / or, the number of layers of the energy storage area (3) and the storage area (4) are arranged in a one-to-one correspondence; And / or, the frame includes a heightened area (17), and the heightened area (17) is arranged between the energy storage area (3) and the storage area (4).

15. The container energy storage system according to claim 14, characterized in that: Each layer of the energy storage area (3) and each layer of the storage area (4) is provided with the transport track, and each layer of the energy storage area (3) and each layer of the storage area (4) is provided with at least one transport device (22).

16. The container energy storage system according to any one of claims 1 to 3, characterized in that: The placement area is provided with a plurality of columns, the frame body comprises a plurality of columns of transport channels (18), each column of the placement area is arranged corresponding to each column of the transport channels (18), and the lifting device (2) is provided at the top of the transport channels (18).

Images