With the rapid development of the new energy industry, energy storage technology has become the key to supporting the efficient utilization of renewable energy. The 5MWh liquid cooled container energy storage system solution is leading a new round of transformation in energy storage technology with its unique advantages. This solution not only integrates advanced liquid cooling technology, effectively improving the energy efficiency and safety performance of the battery system, but also achieves rapid deployment and flexible expansion of the energy storage system through modular and containerized design concepts. It provides strong support for grid regulation, renewable energy integration, and energy management for industrial and commercial users.
This article will provide an in-depth analysis of the 5MWh liquid cooled container energy storage system solution from four dimensions: structural strength, electrical safety, thermal performance, and delivery process.
Structural strength
The 5MWh liquid cooled container energy storage system exhibits excellent structural strength. It meets the seismic rating of Zone 4, and the entire system can be lifted at full load and operate stably in various extreme environments. Effectively extending the service life of the system and providing more solid and reliable power support for new energy projects.
In terms of structural details, when the container roof of the energy storage system is subjected to a pressure of 0.0072 MPa, the maximum deformation generated by the roof is 1.271 mm, and its structural strength far exceeds the strict requirements of snow load.
Faced with seismic shock waves in the X, Y, and Z directions, the stress of the container frame remains below 250 MPa, far below 70% of the ultimate yield strength, demonstrating excellent seismic performance.
In addition, the container body and supporting structure have sufficient strength and stiffness to easily cope with the pressure generated by wind loads. Even under strong wind conditions of up to 70 meters per second, the resultant moment acting on the container is less than 50% of the moment at the center of gravity, ensuring the stability of the container. Effectively resisting various challenges from harsh environments, further ensuring the overall stability and security of the system.
Electrical safety
Building a comprehensive and comprehensive electrical safety protection system for energy storage systems can ensure stable operation and personnel safety in various harsh environments. The 5MWh liquid cooled container energy storage system adopts the M7 series PACK module design to ensure core level safety from the source and build a strong safety defense line.
Pay attention to the intrinsic safety design of battery cells. The battery cells have passed multiple safety tests, and there is no risk of electric shock/arcing/chemical/contact hazards.
The insulation material of the battery cell can withstand high temperatures of 1200 ℃ and effectively block high-temperature flames, preventing the spread of fire when the battery cell loses control of heat. Built a solid and reliable 'firewall' for the battery module.
The battery pack shell is made of UL94-5VA flame-retardant patented composite material, which has excellent flame-retardant and mechanical properties, adapts to harsh environments, and greatly improves the overall safety of the energy storage system.
PACK level fire monitoring, the M7 series battery pack has an independent fire detection module to ensure rapid detection of abnormal situations inside the pack and transmit signals to the fire control host.
PACK grade perfluorohexane, M7 series battery pack supports single pack irrigation with perfluorohexane, achieving targeted and precise fire extinguishing.
Biomimetic liquid cooling pipeline, the liquid cooling pipeline in M7 series battery packs adopts biomimetic capillary distribution, and utilizes advanced process technology and intelligent AI algorithms to achieve single pack intelligent heat management. The temperature difference of the battery cells inside the package can be controlled within 2.5 ℃, and the system temperature rise should not exceed 5 ℃.
In terms of electrical performance, a vehicle grade smoke detection system has been introduced, which has a high-precision monitoring capability of up to 15 years and does not require calibration, ensuring long-term stable monitoring effects. At the same time, advanced arc flash prevention technology has been adopted, and a series of measures such as carefully optimized electrical layout, application of arc flash prevention materials and equipment have significantly reduced the risk of arc flash accidents. In addition, a triple passive protection strategy has been implemented, using three-level fuses to cooperate with each other, ensuring that the impact range can be quickly and effectively controlled to a minimum in the event of a short circuit, fully guaranteeing the safe and stable operation of the system.
Thermal performance
The liquid cooled energy storage container solution, as an innovative energy storage solution, ensures long-term stable operation and efficient energy output of the energy storage system with its excellent thermal management capabilities and precise temperature control.
① When actively insulating and storing at low temperatures, starting the liquid cooling machine at a specific temperature not only ensures battery life but also reduces system energy consumption.
② Low power consumption focuses on low-power design in thermal management. Tailored liquid cooling strategies for liquid cooling systems to cope with different application modes in normal temperature, high temperature, and low temperature scenarios, ensuring optimal power consumption in each scenario;
③ Through precise temperature monitoring and adjustment, the temperature differences in various areas inside the container can be kept within a small range, ensuring the stable operation of key equipment such as batteries. The system temperature difference is within 5 ℃, and the cluster level temperature difference is within 3 ℃.
④ Regardless of harsh environments such as high temperature, low temperature, or humidity, containers can maintain internal temperature stability by adjusting thermal management strategies in all scenarios. Both high temperature hot start and low temperature cold start have undergone long-term verification in the environmental chamber to ensure full scenario delivery.
⑤ Easy to maintain bidirectional cutoff, primary tube injection, ensuring convenient maintenance of the entire lifecycle of the water-cooled liquid.
Delivery process
We have a professional and strong on-site delivery and after-sales service team, with an efficient and rigorous delivery process. Every production process is strictly controlled for quality, and products can only be delivered after undergoing hundreds of rigorous tests to ensure that each product achieves optimal performance. From precise factory assembly to rapid deployment on site, every step embodies our ultimate pursuit of quality and efficiency.