Box type efficient energy storage device

Abstract

The utility model discloses a box type efficient energy storage device. The box type efficient energy storage device comprises a box body, a battery assembly and an electrical assembly, an electrical cabin and two battery cabins are formed in the box body in an isolation mode, the electrical cabin is located in the middle of the box body, and the two battery cabins are located on the two sides of the electrical cabin respectively; the battery assembly is arranged in the battery cabin and comprises a plurality of battery clusters; the electrical assembly is arranged in the electrical cabin and comprises a monitoring module, a confluence cabinet and a plurality of PCS cabinets, the confluence cabinet and the PCS cabinets are electrically connected with the monitoring module, the PCS cabinets are connected with the battery clusters in a one-to-one correspondence mode and used for converting direct currents in the corresponding battery clusters into alternating currents to be output, and the PCS cabinets are jointly connected with the confluence cabinet. Alternating current in the PCS cabinets is converged and output through the convergence cabinet, and the monitoring module is used for monitoring operation of the energy storage device in real time. According to the technical scheme, through space integration and pre-integration, the space layout can be optimized, the occupied area of equipment is reduced, transfer and installation are facilitated, and the flexibility of the energy storage device is greatly improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power systems, in particular to a box type efficient energy storage device. BACKGROUND

[0002] Under the background of accelerating global energy structure transformation, the proportion of renewable energy power generation represented by wind energy and solar energy continues to rise. However, renewable energy power generation has natural intermittency and volatility characteristics, and its power generation power is significantly affected by natural conditions. For example, the power generation power of photovoltaic power generation is greatly reduced at night and in rainy weather, and the output power of wind power is difficult to predict when the wind speed is unstable. This unstable power output brings great challenges to the stable operation of the power grid, easily leading to power frequency fluctuation, voltage deviation and other problems, affecting power supply quality and power grid safety. In order to realize the peak clipping and valley filling of power, improve the operation efficiency and stability of the power system, the energy storage device emerges as the times require. The energy storage device can store electric energy when there is excess power and release electric energy when there is insufficient power, effectively balancing the supply and demand relationship of the power grid, and improving the flexibility and reliability of the power grid.

[0003] At present, traditional energy storage devices are difficult to meet the flexible energy storage demand. For example, many traditional energy storage devices adopt a decentralized layout, and the core components such as battery modules are independently stored, resulting in large equipment area and low space utilization. In some areas where land resources are scarce, such as city centers or industrial parks, this layout not only increases the construction cost, but also limits the scale expansion of the energy storage system. And the traditional energy storage device is usually large in size and complex in structure, and the installation process requires professional technical personnel and a large amount of construction time. Moreover, due to the limitation of its size and weight, the transportation cost is high, and the risk in the transportation process is also large, which is difficult to realize rapid deployment and flexible deployment. CONTENT OF THE UTILITY MODEL

[0004] The present application provides a box type efficient energy storage device, which aims to solve the problem that the energy storage device in the prior art is difficult to meet the flexible energy storage demand.

[0005] To achieve the above-mentioned purpose, the present application provides a box type efficient energy storage device, which comprises:

[0006] a box body, an electrical cabin and two battery cabins are formed in the box body, the electrical cabin is located in the middle of the box body, and the two battery cabins are located on both sides of the electrical cabin;

[0007] a battery assembly arranged in the battery cabin, comprising a plurality of battery clusters;

[0008] The electrical components arranged in the electrical cabin include a monitoring module, a busbar cabinet electrically connected with the monitoring module, and a plurality of PCS cabinets electrically connected with the plurality of battery clusters one by one, for converting direct current in the respective corresponding battery cluster into alternating current and outputting, and the plurality of PCS cabinets are commonly connected with the busbar cabinet to output the alternating current in the plurality of PCS cabinets through the busbar cabinet, and the monitoring module is used for monitoring the operation of the energy storage device in real time.

[0009] In some embodiments, each of the battery clusters includes a mounting rack and a plurality of battery monomers arranged on the mounting rack, and the number of the battery clusters in each of the battery cabins is arranged to be multiple, and the plurality of battery clusters are arranged on opposite sides of the battery cabin; in some embodiments, a cooling fan is arranged on the battery rack corresponding to each of the placement holes.

[0010] In some embodiments, an air inlet and an air outlet are arranged on opposite cabin walls of each of the battery cabins, respectively, and an electric louver is arranged at the air inlet and the air outlet, and an exhaust fan is arranged at the air outlet corresponding to the electric louver.

[0011] In some embodiments, the air outlet and the air inlet in each of the battery cabins are diagonally arranged.

[0012] In some embodiments, a cooling assembly is further arranged in each of the battery cabins, and the cooling assembly includes an air conditioner and an air duct connected with an air outlet of the air conditioner, the air duct extends between the battery racks on both sides of the battery cabin, and a plurality of air outlets are arranged downward and spaced apart in the extension direction of the air duct.

[0013] In some embodiments, the device further includes a safety protection assembly, and the safety protection assembly includes a fire-fighting cabinet and a fire-fighting pipeline connected with the fire-fighting cabinet, the fire-fighting cabinet is arranged in the electrical cabin, the fire-fighting pipeline extends into the battery cabin, and a plurality of spray heads are arranged on the fire-fighting pipeline to spray fire extinguishing agent to the battery monomers through the plurality of spray heads when the fire-fighting cabinet receives the fire extinguishing instruction sent by the monitoring module.

[0014] In some embodiments, the safety protection assembly further includes a deflation indicator and an alarm arranged on the cabin wall of the electrical cabin, the deflation indicator is used to light up when the fire-fighting cabinet sprays fire extinguishing agent, and the alarm is used to remind the operator to evacuate.

[0015] In some embodiments, the cabin wall of the electrical cabin is further provided with a hand self-switching button and an emergency stop button, the hand self-switching button is used to manually or automatically start the fire-fighting system, and the emergency stop button is used to immediately cut off the power supply.

[0016] In some embodiments, a relief port is arranged on the cabin wall of the battery cabin and the electrical cabin, and is used to automatically release pressure when the pressure in the cabin is abnormal.

[0017] In some embodiments, a door plate is arranged on the cabin wall of the electrical cabin and the battery cabin, to facilitate maintenance personnel to enter and exit for maintenance.

[0018] In some embodiments, a maintenance manhole is arranged at the bottom of the electrical cabin, to facilitate maintenance personnel to enter the bottom of the device for maintenance.

[0019] The technical scheme of the present application provides a box-type efficient energy storage device. The box-type efficient energy storage device comprises a box body, a battery assembly, and an electrical assembly. An electrical cabin and two battery cabins are formed in the box body. The electrical cabin is located in the middle of the box body, and the two battery cabins are located on both sides of the electrical cabin. The battery assembly is arranged in the battery cabin and comprises a plurality of battery clusters. The electrical assembly is arranged in the electrical cabin and comprises a monitoring module, a busbar cabinet electrically connected to the monitoring module, and a plurality of PCS cabinets. The plurality of PCS cabinets are connected to the plurality of battery clusters one by one, are used to convert direct current in the respective corresponding battery clusters into alternating current and output the alternating current, and are collectively connected to the busbar cabinet to output the alternating current in the plurality of PCS cabinets through the busbar cabinet. The monitoring module monitors the operation of the energy storage device in real time. The energy storage device provided by the technical scheme of the present application concentrates the battery cabin and the electrical cabin in one box body, optimizes the space layout through physical layout, reduces the equipment floor area, realizes an integrated box body structure, and completes the integrated installation and testing of the battery assembly and the electrical assembly before leaving the factory. Only the cables need to be connected and debugged on site, which facilitates transportation and installation and greatly improves the flexibility of the energy storage device. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical schemes in the embodiments of the present application or the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0021] Figure 1 It is a top view structural schematic diagram of the box-type efficient energy storage device of an embodiment of the present application after removing the top cover.

[0022] Figure 2 It is a sectional view structural schematic diagram of the box-type efficient energy storage device of an embodiment of the present application.

[0023] Figure 3 It is a front view structural schematic diagram of the box-type efficient energy storage device of an embodiment of the present application.

[0024] Figure 4 It is a left view structural schematic diagram of a box type high-efficiency energy storage device according to an embodiment of the present application. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0026] It should be noted that, unless otherwise specified or limited, all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative position relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications also change accordingly.

[0027] It should also be noted that, unless otherwise specified or limited, when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or can have a middle element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or can have a middle element.

[0028] In addition, unless otherwise specified or limited, the description involving "first", "second", etc. in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of various embodiments can be combined with each other, but it must be based on the fact that a person skilled in the art can realize it, and when the combination of technical solutions contradicts each other or cannot be realized, it should be considered that the combination of technical solutions does not exist and is not within the scope of protection claimed by the present application.

[0029] Referring to Figure 1 and Figure 2 It is shown that the present application proposes a box type high-efficiency energy storage device 100, which comprises a box body 10, a battery assembly 20 and an electrical assembly 30.

[0030] The electrical cabin 11 is located in the middle of the box body 10, and the two battery cabins 12 are respectively located on both sides of the electrical cabin 11; so that the internal space of the box body 10 can be fully utilized for the installation of each assembly, the connection between each assembly is more compact, and the integration of the device is improved.

[0031] The battery assembly 20 is arranged in the battery cabin 12 and includes a plurality of battery clusters, and the battery clusters store electric energy. The electrical assembly 30 is arranged in the electrical cabin 11 and includes a monitoring module 33, a busbar cabinet 31 electrically connected to the monitoring module 33, and a plurality of PCS cabinets 32. The PCS (Power Conversion System) is a full name of an energy storage converter. The plurality of PCS cabinets 32 are in one-to-one electrical connection with the plurality of battery clusters, are used to convert direct current in the respective corresponding battery clusters into alternating current and output, and are collectively electrically connected to the busbar cabinet 31 to output the alternating current in the plurality of PCS cabinets 32 through the busbar cabinet 31. The monitoring module 33 monitors the operating state of the energy storage device in real time, including the voltage, current, temperature and other parameters of the battery monomer, and the working state of the busbar cabinet 31 and the PCS cabinet 32. Through monitoring and analysis of these parameters, the monitoring module 33 can timely find abnormal conditions in the energy storage device and handle them.

[0032] In the technical scheme of the present application, the box body 10 adopts a three-cabin isolation type structure design, the high-voltage equipment such as the busbar cabinet 31 and the PCS cabinet 32 is arranged in the middle part of the box body 10, and the battery cabins 12 are symmetrically distributed on both sides to form physical isolation, which can avoid direct impact on electrical equipment when the battery monomer is in thermal runaway. And the integrated box body 10 structure can complete the integrated installation and testing of the battery assembly 20 and the electrical assembly 30 before leaving the factory, and only needs to connect cables and debug on site, which is convenient for transportation and installation, and greatly improves the flexibility of the energy storage device.

[0033] And the group string type PCS design of the present application avoids mutual interference between different battery clusters, improves the stability and safety of the system. And the group string type PCS design can better handle the state difference of each battery cluster, ensure that each battery can work in its best state, and thus improve the life and efficiency of the entire energy storage system. In addition, the group string type PCS has higher flexibility, can easily adjust the size of the system according to actual needs, allows the use of new and old batteries, and has extremely high expansibility.

[0034] Referring to FIGS. 1, 2 and 3, Figure 1 and Figure 2 In some embodiments, each battery cluster includes a mounting rack 211 and a plurality of battery monomers (not shown in the figure) arranged on the mounting rack 211. The number of battery clusters in each battery cabin 12 is set to be multiple, and the multiple battery clusters are arranged on opposite sides of the battery cabin 12. Each battery rack 211 is provided with a plurality of placing holes 212, and the plurality of battery monomers are placed one-to-one in the plurality of placing holes 212 and are connected with the plug-in interfaces arranged in the placing holes 212.

[0035] In this embodiment, the battery holder 211 provides stable support and mounting position for the battery monomer, ensures the battery monomer to remain fixed during the operation of the device, and avoids damage due to vibration or external force; the multiple battery clusters are arranged on the opposite sides of the battery cabin 12, which can fully utilize the space of the battery cabin 12, increase the number of battery monomers accommodated, and thus store more electric energy in the limited volume of the box body 10.

[0036] In addition, it can be understood that the battery will generate heat during charging and discharging, and if the battery monomers are placed in a concentrated manner, it is easy to cause the local temperature to be too high, affecting the performance and service life of the battery. The split layout increases the spacing between the battery monomers, and the air circulation is smoother, which is beneficial to heat dissipation and ensures that the battery monomers work in a suitable temperature environment.

[0037] Among them, the battery holder 211 is provided with a plurality of placing holes 212, and the battery monomers are placed one by one and connected with the plug-in interfaces in the placing holes 212, which can simplify the installation process of the battery monomers. For example, the installer only needs to accurately insert the battery monomer into the placing hole 212, and the electrical connection can be completed, without the need for complex wiring operation. When a battery monomer fails or needs to be replaced, since the plug-in interface connection is adopted, the maintenance personnel can easily pull out the faulty battery monomer from the placing hole 212 and insert a new battery monomer, and quickly complete the replacement operation.

[0038] Further, the battery holder 211 is provided with a heat dissipation fan 213 corresponding to each placing hole 212. The heat dissipation fan 213 can significantly accelerate the air circulation of the placing hole, rapidly discharge the hot air around the battery, and at the same time introduce cold air, forming an effective heat dissipation cycle and reducing the working temperature of the battery. Among them, each placing hole 212 corresponds to a heat dissipation fan 213, which can ensure that each battery monomer can be fully cooled, avoiding the problem of uneven cooling caused by different positions of the battery monomers, and is beneficial to improve the overall performance and stability of the battery pack.

[0039] Referring to Figure 1 As shown in the figure, in some embodiments, the opposite cabin walls of each battery cabin 12 are respectively provided with an air inlet 111 and an air outlet 112, and the air inlet 111 and the air outlet 112 are respectively provided with electric shutters, and the air outlet 112 is provided with an exhaust fan corresponding to the electric shutter; wherein the air outlet 112 and the air inlet 111 in each battery cabin 12 are diagonally arranged.

[0040] In this embodiment, the air outlet 112 is diagonally opposite to the air inlet 111, which can form an efficient air flow channel. When the exhaust fan is working, external air enters the battery compartment 12 from the air inlet 111, flows between the battery racks 211, absorbs the heat generated by the battery, and is discharged from the diagonal air outlet 112. The diagonal design makes the air flow path longer, which can more fully exchange heat with the battery monomer and improve the heat dissipation efficiency.

[0041] In this embodiment, the air inlet 111 and the air outlet 112 are provided with electric shutters, thereby providing flexible ventilation control capability. The electric shutters can automatically adjust the opening degree according to the temperature, humidity and other environmental parameters in the battery compartment 12, which is coordinated by the monitoring module 33. For example, when the temperature in the battery compartment 12 is detected to be high, the electric shutter can increase the opening degree to increase the air intake and exhaust; when the temperature is low, the electric shutter can reduce the opening degree to reduce the ventilation, so as to avoid excessive heat dissipation of the battery.

[0042] In addition, the electric shutter can also prevent dust, debris and other objects from entering the battery compartment 12, thereby protecting the safety of the battery and electrical equipment. When ventilation is not required, the electric shutter can be completely closed to isolate the external environment.

[0043] In addition, the electric shutter can also prevent dust, debris and other objects from entering the battery compartment 12, thereby protecting the safety of the battery and electrical equipment. When ventilation is not required, the electric shutter can be completely closed to isolate the external environment.

[0044] Referring to FIGS. 1, 2 and 3, Figure 1 and Figure 2 In some embodiments, each battery compartment 12 is also provided with a cooling assembly 40, which includes an air conditioner 41 and an air duct 42 connected to the air outlet 112 of the air conditioner 41. The air duct 42 extends between the battery racks 211 on both sides of the battery compartment 12 and is provided with a plurality of air outlets 43 downwardly and spaced apart in the extension direction thereof.

[0045] In this embodiment, the cold air is provided by the air conditioner 41 to cool the battery compartment 12. The air duct 42 extends between the battery racks 211 on both sides, and after the air conditioner 41 is started, the cold air is uniformly distributed in the battery compartment 12 through the air duct 42. The air conditioner 41 can be designed based on the actual cooling demand, for example, two small high-efficiency air conditioners are used in one battery compartment 12, and the two small high-efficiency air conditioners are connected to the same air duct to ensure that the refrigeration effect meets the cooling demand.

[0046] In a further scheme, the air conditioner 41 can be linked with the electric louver through the monitoring module 33, and automatically adjust the cooling output according to the real-time temperature, so as to optimize the cooling effect. In addition, the electric louver can also be linked with the fire-fighting cabinet 51 described below. When a fire is detected, the electric louver can be automatically closed to cut off the external oxygen supply and delay the spread of the fire.

[0047] Referring to Figure 1 As shown in some embodiments, the device further comprises a safety protection assembly, which includes a fire-fighting cabinet 51 and a fire-fighting pipeline (not shown in the figure) connected to the fire-fighting cabinet 51. The fire-fighting cabinet 51 is arranged in the electrical cabin 11, and the fire-fighting pipeline extends into the battery cabin 12 and is provided with a plurality of spray heads. When the fire-fighting cabinet 51 receives the fire extinguishing instruction sent by the monitoring module 33, the fire extinguishing agent is sprayed to the battery monomer through the spray heads.

[0048] In this embodiment, the monitoring module 33 can monitor various parameters in the battery cabin 12 in real time, such as temperature and smoke concentration. Once an abnormal situation is detected, such as a sharp rise in temperature or an excessive smoke concentration, the monitoring module 33 will quickly send a fire extinguishing instruction to the fire-fighting cabinet 51. After receiving the fire extinguishing instruction, the fire-fighting cabinet 51 delivers the fire extinguishing agent to each spray head through the fire-fighting pipeline, and the spray head sprays the fire extinguishing agent to the battery monomer. Direct fire extinguishing of the battery monomer can quickly and effectively put out the fire and reduce damage to the energy storage device. The fire-fighting cabinet 51 is a perfluorohexanone device, which can reduce the temperature of the fire scene by rapidly absorbing heat (cooling effect) and isolate oxygen. Due to its high efficiency, environmental protection and safety balance, it is one of the optimal solutions for current lithium battery fire protection.

[0049] Further, the safety protection assembly further includes a deflation indicator light 116 and an alarm 117 arranged on the cabin wall of the electrical cabin 11. When the fire-fighting cabinet 51 sprays the fire extinguishing agent, the deflation indicator light 116 is turned on, indicating that the staff should not enter the box 10. The alarm 117 can include a sound and light alarm 117 and a sound alarm 117, which can be triggered immediately when an emergency occurs, such as a fire, to emit a loud sound and flashing light, reminding the staff to evacuate quickly and ensure personal safety.

[0050] In addition, the installation protection assembly can further be provided with a fire-fighting water pipe interface 115 on the cabin wall of the electrical cabin 11, as shown in Figure 4 The fire-fighting water pipe interface 115 adopts an international interface, which can realize rapid and standardized fire-fighting linkage, allowing fire-fighting personnel or automatic systems to directly access external fire-fighting water sources or fire extinguishing agents without additional adaptation in emergency situations, thereby shortening the response time.

[0051] Referring to Figure 3As shown, in some embodiments, the cabin wall of the electrical cabin 11 is also provided with a manual-automatic conversion button 118 for manually or automatically starting the fire-fighting cabinet 51 and an emergency stop button 119 for immediately cutting off the power supply.

[0052] It can be understood that in the manual mode, the operator can independently decide whether to start the fire extinguishing system according to the actual situation. For example, when the monitoring module 33 is false, or the operator judges that the fire situation is not serious after on-site judgment, and the fire extinguishing system does not need to be started temporarily, the manual mode can be selected to avoid unnecessary fire extinguishing agent injection, reduce resource waste and potential impact on equipment. In the automatic mode, the fire-fighting cabinet 51 can automatically determine whether to start the fire extinguishing program according to the parameters such as temperature, smoke concentration and other parameters fed back by the monitoring module 33. This mode is suitable for unattended or occasions requiring rapid response, and when a fire occurs, it can quickly start the fire extinguishing measures to effectively control the spread of the fire and improve the efficiency of fire extinguishing.

[0053] In addition, the operator can flexibly switch the operation mode according to different scenes. For example, during equipment maintenance, the fire extinguishing system can be switched to manual mode to avoid false start of the fire extinguishing system due to misoperation or other interference; and during normal operation, the automatic mode can be selected to ensure timely response when a fire occurs.

[0054] Referring to Figure 1 As shown, in some embodiments, the cabin wall of the battery cabin 12 and the cabin wall of the electrical cabin 11 are both provided with a pressure relief port 113 for automatically releasing pressure when the pressure in the cabin is abnormal.

[0055] It can be understood that during the normal operation of the battery cabin 12 and the electrical cabin 11, the pressure in the cabin may increase sharply due to battery thermal runaway, electrical equipment failure, etc. By setting the pressure relief port 113, when the pressure reaches a certain threshold, the pressure relief port 113 can be automatically opened to release part of the gas, reduce the pressure in the cabin, and avoid damage to the elements inside the cabin due to excessive pressure.

[0056] Among them, the pressure relief port 113 is usually designed with a pressure-sensitive element (such as a bursting disc, a spring valve) or a temperature-sensitive material (such as a fusible alloy), which automatically triggers pressure relief when the detected pressure or temperature exceeds the preset safety threshold.

[0057] Referring to Figure 1 As shown, in some embodiments, the cabin walls of the electrical cabin 11 and the battery cabin 12 are both provided with door panels for the convenience of maintenance personnel to enter and exit for maintenance; wherein the bottom of the electrical cabin 11 is also provided with a maintenance manhole 114 for maintenance personnel to enter the bottom of the device for maintenance.

[0058] In this embodiment, the door plate is arranged on the bulkhead between the electrical cabin 11 and the battery cabin 12, so that the maintenance personnel can quickly enter the cabin without complicated disassembly or climbing operation, and the work efficiency is greatly improved. The maintenance manhole 114 arranged at the bottom of the electrical cabin 11 provides a channel for the maintenance personnel to directly enter the bottom of the device for maintenance. During the operation of the energy storage device, if a fault occurs at the bottom of the device, such as cable aging, grounding fault, etc., the setting of the maintenance manhole 114 enables the maintenance personnel to conveniently maintain and repair the bottom equipment. For example, when an abnormal heating phenomenon is found at the bottom of the electrical cabin 11, the maintenance personnel can quickly enter the bottom through the maintenance manhole 114 to check whether the cable connection is loose, whether there is a short circuit, etc., and timely repair to avoid further expansion of the fault.

[0059] The above are only part or preferred embodiments of the present application, neither the text nor the drawings can limit the scope of protection of the present application, any equivalent structural transformation made by using the content of the present application specification and drawings, or direct / indirect application in other related technical fields are included in the scope of protection of the present application.

Claims

1. A box-type high-efficiency energy storage device, characterized by comprising: The utility model relates to an energy storage device, including: a box, which is isolated into an electrical cabin and two battery cabins in the box, the electrical cabin is located in the middle of the box, and the two battery cabins are located on both sides of the electrical cabin; a battery assembly arranged in the battery cabin, including a plurality of battery clusters; an electrical assembly arranged in the electrical cabin, including a monitoring module, a busbar cabinet electrically connected with the monitoring module, and a plurality of PCS cabinets, the plurality of PCS cabinets are electrically connected with the plurality of battery clusters in one-to-one correspondence, for converting direct current in the corresponding battery cluster into alternating current and outputting, and the plurality of PCS cabinets are commonly electrically connected with the busbar cabinet to output the alternating current in the plurality of PCS cabinets through the busbar cabinet, and the monitoring module is used for real-time monitoring of the operation of the energy storage device.

2. The tank-type high-efficiency energy storage device according to claim 1, characterized by, Each battery cluster includes a battery rack and a plurality of battery monomers arranged on the battery rack, the number of battery clusters in each battery cabin is set to be multiple, and the plurality of battery clusters are arranged on opposite sides of the battery cabin; wherein a plurality of placing holes are arranged on each battery rack, and a plurality of battery monomers are placed in one-to-one correspondence with the plurality of placing holes and connected with the plug-in interface arranged in the placing holes.

3. The tank-type high-efficiency energy storage device according to claim 2, characterized by, A cooling fan is arranged on the battery rack corresponding to each placing hole.

4. The tank-type high-efficiency energy storage device according to claim 2, characterized by, An air inlet and an air outlet are respectively arranged on the opposite walls of each battery cabin, electric shutters are arranged at the air inlet and the air outlet, and an exhaust fan is arranged corresponding to the electric shutter at the air outlet; wherein the air outlet and the air inlet in each battery cabin are diagonally arranged.

5. The tank-type high-efficiency energy storage device according to claim 4, characterized by, A cooling assembly is further arranged in each battery cabin, the cooling assembly includes an air conditioner and an air duct connected with the air outlet of the air conditioner, the air duct extends between the battery racks on both sides of the battery cabin, and a plurality of air outlets are arranged downward and spaced apart in the extension direction of the air duct.

6. The tank-type high-efficiency energy storage device according to claim 4, wherein The device further includes a safety protection assembly, the safety protection assembly includes a fire-fighting cabinet and a fire-fighting pipeline connected with the fire-fighting cabinet, the fire-fighting cabinet is arranged in the electrical cabin, the fire-fighting pipeline extends into the battery cabin, and a plurality of nozzles are arranged on the fire-fighting pipeline to spray fire extinguishing agent to the battery monomers through the plurality of nozzles after the fire-fighting cabinet receives the fire extinguishing instruction sent by the monitoring module.

7. The tank-type high-efficiency energy storage device of claim 6, wherein The safety protection assembly further includes a deflation indicator lamp and an alarm arranged on the wall of the electrical cabin, the deflation indicator lamp is used to light up when the fire-fighting cabinet sprays fire extinguishing agent, and the alarm is used to remind the operator to evacuate.

8. The tank-type high-efficiency energy storage device according to claim 6, characterized by, The wall of the electrical cabin is further provided with a hand self conversion button and an emergency stop button, the hand self conversion button is used to manually or automatically start the fire-fighting system, and the emergency stop button is used to immediately cut off the power supply.

9. The tank-type high-efficiency energy storage device of claim 6, wherein, The walls of the battery cabin and the electrical cabin are both provided with pressure relief openings for automatically releasing pressure when the pressure in the cabin is abnormal.

10. The tank-type high-efficiency energy storage device of claim 1, wherein The walls of the electrical cabin and the battery cabin are both provided with door panels for the convenience of maintenance personnel to enter and exit for maintenance; wherein the bottom of the electrical cabin is further provided with a maintenance manhole for the maintenance personnel to enter the bottom of the device for maintenance.

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