Container energy storage system box body

Abstract

The utility model discloses a container energy storage system box body, which comprises a container type box body, the interior of the box body is divided into a plurality of mutually separated spaces along the length direction of the box body, the spaces comprise a first space, a second space, a third space and a fourth space, the first space is used for placing an energy management system, and the second space is used for placing an energy management system. The second space is used for placing an early warning system platform, the third space is used for placing a battery module, and the fourth space is used for placing a thermal management system. According to the container energy storage system box body, the internal space configuration is reasonable, and the battery module, the early warning system, the energy management system and the heat management system are separately arranged in different spaces and are mutually isolated, so that the influence on other equipment in the box body after the battery module is out of control and is on fire is prevented.

Description

Technical Field

[0001] This utility model relates to the field of container energy storage system technology, and in particular to a container energy storage system housing. Background Technology

[0002] As an energy storage system for managing the power grid and the DC distribution network connected to the grid, its core is the energy storage battery, which consists of multiple sets of energy storage batteries. Typically, such an energy storage system uses a container as its carrier; that is, it is configured with a container to house multiple sets of energy storage batteries, thus forming a containerized energy storage system. In existing containerized energy storage systems, for safety and other considerations, it is common to place the battery modules separately in a container, while the control system or unit of the battery module energy storage unit is placed separately externally, arranged separately from the container. This is not conducive to the overall integration of the energy storage system, therefore, improvement is needed. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings and defects of the existing technology and provide a container energy storage system housing.

[0004] A containerized energy storage system enclosure includes a container-shaped enclosure, the interior of which is divided into multiple spaced spaces along the length of the enclosure, including a first space, a second space, a third space, and a fourth space. The first space is used to house an energy management system, the second space is used to house an early warning system platform, the third space is used to house a battery module, and the fourth space is used to house a thermal management system.

[0005] The first space, the second space, and the third space are each equipped with a door.

[0006] The container is equipped with a ventilation system on its side, including vents, which are used to exhaust hot air from inside the container when the cooling fan of the thermal management system is working.

[0007] The thermal management system includes a liquid cooling unit, which provides a cooling medium for heat dissipation to the liquid cooling plate of the battery cell in the battery module.

[0008] The third space is equipped with a water fire-fighting system, including a water sprinkler system, which sprays fire-fighting water to extinguish the fire on the battery module.

[0009] The water fire protection system includes an external fire water interface, which can be quickly and reliably connected to a fire hose connector.

[0010] The container is equipped with a firewall to fireproof the space where the battery module is placed from the space where the early warning system platform and thermal management system are placed, thus preventing the spread of fire in the event of a fire.

[0011] The doors to the second and third spaces are equipped with cooling air conditioners.

[0012] The third space is equipped with a battery module fire protection system, including a main pipe and multiple branch pipes connected to the main pipe. The branch pipes are used to connect to the fire protection connectors of the battery modules. The main pipe is connected to the liquid nitrogen host.

[0013] Within the third space of the housing, a nanoscale heat insulation plate is installed between adjacent battery clusters of the battery module to achieve heat insulation between the battery clusters.

[0014] The container energy storage system of this utility model has a reasonable internal space configuration, which separates the battery module, early warning system, energy management system and thermal management system into different spaces and isolates them from each other to prevent the impact of battery module failure and fire on other equipment in the container.

[0015] In addition, a multi-level fire protection system is installed to ensure effective fire extinguishing in the event of battery thermal runaway and fire. Furthermore, the arrangement of heat insulation panels between battery clusters achieves multiple and multi-level fire protection and heat insulation, making the operation of the container energy storage system safer and more reliable, and preventing fire or explosion due to thermal runaway or other reasons. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the external structure of the container energy storage system of this utility model (excluding the top cover).

[0017] Figure 2 This is a schematic diagram of the overall shape of the container energy storage system of this utility model.

[0018] Figure 3 This is a schematic diagram of the container energy storage system of this utility model, excluding the top cover and door panels.

[0019] Figure 4 This is a side view of the container energy storage system of this utility model.

[0020] Figure 5 This is another schematic diagram of the container energy storage system of this utility model, excluding the top cover plate.

[0021] Figure 6 This is a cross-sectional schematic diagram of the container body of the container energy storage system of this utility model.

[0022] Figure 7This is a schematic diagram of the layout of the fire protection system piping inside the container energy storage system of this utility model. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0024] See Figures 1 to 7 As shown in the figure, a container energy storage system according to an embodiment of the present invention includes a container 1 in the form of a container. The container 1 has a rectangular structure. The interior of the container is divided into a plurality of mutually spaced spaces along the length of the container, including a first space 11, a second space 12, a third space 13 and a fourth space 14. The first space 11 is used to house an energy management system 7, the second space 12 is used to house an early warning system platform 15, the third space 13 is used to house a battery module, and the fourth space 14 is used to house a thermal management system 4.

[0025] The four spaces described above are separated by partitions and formed inside the enclosure. The size of each space is determined according to the size of the equipment or modules to be installed. Each space can be equipped with a separate door, allowing each space to be independent and accessible to operators for corresponding operations. Preferably, the first, second, and third spaces are equipped with double doors 9 that can be opened from the front, and are fitted with door locks or similar mechanisms. The door locks can be similar to those used on the rear doors of enclosed warehouse vehicles or door handle locks. The fourth space can have a detachable end plate to achieve a detachable structure for easy maintenance.

[0026] In this embodiment, the energy management system is a management system for an energy storage system, including a cabinet and an EMS energy management system integrated in the cabinet. It has a human-machine interface and a management host, including a monitoring module and an energy management module. It can achieve multi-timescale energy optimization scheduling through day-ahead global optimization and intraday rolling optimization. This is existing technology, and its structure will not be described in detail here.

[0027] In this application, the early warning system platform includes an early warning system host, which includes an early warning computer with a human-computer interaction interface. It is connected to several monitoring sensors through a switch and issues corresponding warnings based on the monitored data. The monitoring sensors include battery temperature, inter-battery pressure, battery current and voltage data, and temperature and humidity data inside the container. Warnings are issued when the monitored data exceeds the monitoring range.

[0028] In this application, the battery module is composed of multiple battery clusters, which are formed by stacking multiple battery modules one on top of the other. An air conditioner 2 is installed on the side wall of the container to blow cold air into the container for heat dissipation. Multiple battery clusters are arranged adjacent to each other, with one air conditioner corresponding to each cluster. The purpose of the air conditioners is to quickly dissipate the heat generated by the flexible DC-DC converter of the battery module during operation, effectively cooling it and preventing it from affecting the operation of the battery module. Adjacent battery clusters are spaced apart, forming an air duct in between. The cold air blown by the air conditioners can be blown into the flexible DC-DC converter side of the battery module, exiting through the air outlet and returning through the return air outlet, achieving circulating airflow and effectively cooling the flexible DC-DC converter. Simulation experiments show that this structural arrangement has excellent heat dissipation performance, effectively preventing the heat generated by the flexible DC-DC converter from dissipating and not affecting the module's operation. This solves the problem that current containerized energy storage systems rely solely on conventional liquid cooling, which can only cool the battery cells and cannot dissipate heat from the flexible DC-DC converter.

[0029] In one implementation, the second space 12 is also equipped with an air conditioner 2 for heat dissipation, so as to dissipate heat from the main unit of the early warning system 15 in the second space when it is working, and prevent the main unit of the main unit from overheating and affecting the operation of the early warning system.

[0030] In one embodiment, a ventilation system is provided on the side of the container body, including vents 3. The vents 3 are used to exhaust hot air from inside the container when the cooling fan of the thermal management system is operating. There may be one or two vents, and they may be rainproof or dustproof, achieving not only ventilation but also rain and dust protection to prevent external rainwater and dust from entering the container. More preferably, the vents are arranged on the front and rear sides of the container body.

[0031] In one embodiment, the thermal management system 4 includes a liquid cooling unit. The liquid cooling unit can be installed in a closed liquid cooling system where the temperature of the cooling medium flowing through it is adaptively adjusted according to the cell temperature value monitored by the battery module. This allows the cooling capacity carried by the cooling medium to be adaptively adjusted along with the cell temperature, so that the cell is cooled to the target temperature within a predetermined time. This overcomes the shortcomings of the prior art, where the coolant temperature is constant and cannot be adaptively adjusted, resulting in the inability to adjust synchronously with the cell temperature. It can better regulate the cell, ensuring that the cell operates within a suitable temperature range, preventing overheating or overcooling, thereby maintaining a high-efficiency working state.

[0032] In one embodiment, a battery module fire suppression system 6 is installed on the top interior of the container. This system includes a fire extinguishing agent spraying pipeline connected to a fire extinguishing agent source via a piping system. Each cluster is individually controlled and activated when a fire is detected in a battery module. The system sprays liquid nitrogen and / or carbon dioxide to extinguish the fire in the battery module of the cluster. Liquid nitrogen and / or carbon dioxide have excellent insulation and cooling properties, effectively extinguishing battery fires and electrical equipment fires while preventing reignition. Specifically, in control and use, liquid nitrogen can be used for extinguishing the fire, followed by carbon dioxide, achieving explosion-proof fire suppression. This is safer than using liquid nitrogen or carbon dioxide alone. In a preferred embodiment, the battery module fire suppression system 6 has a main pipe 60 and branch pipes 61 connected to the main pipe. The branch pipes are arranged vertically, and the main pipe is arranged horizontally. Multiple connectors 61 are arranged on the branch pipes for connecting to fire extinguishing connectors on the battery modules to spray fire extinguishing agent into the battery modules.

[0033] The third space 13 is equipped with a water fire suppression system 10, including a water sprinkler system, for spraying fire water to extinguish fires on the battery modules. The water fire suppression system 10 is equipped with an external fire water interface, which can be quickly and reliably connected to a fire hose connector to ensure that fire water can be quickly introduced into the battery space of the container through the external fire water interface. Through the external fire water interface, after using liquid nitrogen and / or carbon dioxide for fire extinguishing, if it is detected that the battery temperature has not dropped to a predetermined temperature and may be dangerous, fire water can be introduced to fill the battery space, immerse the battery modules, achieve immersion cooling, and rapidly cool down the battery modules, further ensuring the safety of the battery modules in the event of a fire.

[0034] In one embodiment, inside the battery space of the container, nanoscale heat insulation panels 16 are arranged between adjacent battery clusters to achieve heat insulation and fireproof isolation between the battery clusters. In a battery cluster space, each battery cluster space has battery module sliding supports 5 on both sides, similar to drawer structure supports. The battery modules are connected to the sliding supports 5 via wheels at the bottom, and the nanoscale heat insulation panels 16 are arranged between adjacent sliding supports of the battery clusters.

[0035] In one embodiment, a firewall 8 is installed inside the container. It can be made of fireproof board or fireproof material to fireproof the battery space where the battery cluster is placed from the spaces on both sides, preventing the fire from spreading and confining the fire area to the battery space, so that it will not spread to other spaces.

[0036] As can be seen from the above, the container energy storage system of this utility model can achieve effective heat dissipation management of the battery modules, ensuring that the battery modules operate within the required temperature range. It also features a more reasonable and scientific multi-level fire protection system to ensure effective fire extinguishing in the event of battery thermal runaway and fire. Furthermore, the arrangement of multiple and multi-level heat insulation panels achieves multiple and multi-level fireproofing and heat insulation, making the operation of the container energy storage system safer and more reliable, preventing fire or explosion due to thermal runaway or other reasons.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or basic features of this utility model.

[0038] Therefore, the embodiments should be regarded as exemplary and non-limiting in all respects, and the scope of the present invention is defined by the appended claims rather than the foregoing description. Thus, it is intended to encompass all variations falling within the meaning and scope of the equivalents of the claims within the present invention.

[0039] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A containerized energy storage system housing, characterized in that, The container includes a container-shaped body, the interior of which is divided into multiple spaced spaces along the length of the container, including a first space, a second space, a third space and a fourth space. The first space is used to house an energy management system, the second space is used to house an early warning system platform, the third space is used to house a battery module, and the fourth space is used to house a thermal management system.

2. The containerized energy storage system housing according to claim 1, characterized in that, Each of the first space, the second space, and the third space is equipped with a door.

3. The containerized energy storage system housing according to claim 1, characterized in that, The container is equipped with a ventilation system on its side, including vents, which are used to exhaust hot air from inside the container when the cooling fan of the thermal management system is working.

4. The containerized energy storage system housing according to claim 1, characterized in that, The thermal management system includes a liquid cooling unit, which provides a cooling medium for heat dissipation to the liquid cooling plates of the battery cells in the battery module.

5. The containerized energy storage system housing according to claim 1, characterized in that, A water fire-fighting system, including a water sprinkler system, is arranged above the third space for spraying fire-fighting water to extinguish fires.

6. The containerized energy storage system housing according to claim 5, characterized in that, The water-based fire protection system includes an external fire water interface, which can be quickly and reliably connected to a fire hose connector.

7. The containerized energy storage system housing according to claim 1, characterized in that, Firewalls are installed inside the container to fire-proofly isolate the battery space where the battery module is placed from the space where the early warning system platform and thermal management system are placed, preventing the spread of fire in the event of a fire.

8. The containerized energy storage system housing according to claim 1, characterized in that, The doors to the second and third spaces are equipped with heat dissipation air conditioners.

9. The containerized energy storage system housing according to claim 1, characterized in that, The third space is equipped with a battery module fire protection system, including a main pipe and multiple branch pipes connected to the main pipe. The branch pipes are used to connect to the fire protection connectors of the battery modules. The main pipe is connected to the liquid nitrogen host.

10. The containerized energy storage system housing according to claim 1, characterized in that, Inside the third space of the housing, a nanoscale heat insulation plate is set between adjacent battery clusters of the battery module to achieve heat insulation between the battery clusters.

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