Energy storage power stations, like large power banks, are very important to the new energy power grid. But do you know? It will also "catch a fever" when working! Especially when charging and discharging are fast, the battery temperature rises rapidly, which not only affects efficiency but also shortens the battery's lifespan. In severe cases, it may even bring safety hazards.
How to effectively "cool it down"? Shanghai Huijue has explored several effective ways to cool down in the field of liquid-cooled energy storage
The shortcomings of the old method: In the past, many liquid cooling systems only laid a layer of "cold plate" at the bottom of the battery for heat dissipation, which was like only blowing a fan on the soles of the feet. The upper part of the battery was still hot, with a large temperature difference, affecting the overall performance.
Huijue's ingenuity: We have designed a unique "Circulation Intelligent Cooling" technology. Simply put, it is to "wrap" each battery with a specially made "cooling blanket" (liquid cooling plate) with water flow channels. The coolant circulates in these "cool blankets", cooling the battery simultaneously from all directions.
The benefits are obvious: In this way, the temperature of the entire battery pack is very uniform, and there will be no situation of "hot head and cold feet". The temperature difference is smaller, the battery output is more consistent, the lifespan is longer, and the entire energy storage pack can release and store more electricity!
The shortcomings of the old method: Traditional refrigeration has to rely on the compressor to work hard regardless of whether it is the coldest winter or the hottest summer outside, which is extremely power-consuming.
Huijue's ingenious idea: Our system is particularly "smart"! It is equipped with an "ambient temperature sensor". When the weather is cool (such as in spring and autumn or on cool nights), and the outdoor temperature is lower than the cooling temperature required by the battery, the system will automatically switch to the "natural cooling" mode. At this point, all that is needed is a small water pump to send the coolant to the external heat sink (similar to a car radiator), allowing the cool air to dissipate heat naturally. The compressor then rests completely! The compressor is a major power consumer. When it is not in use, the electricity cost of the entire cooling system can be reduced by more than half. Calculated over a year, the improvement in energy efficiency is very considerable.
Some solutions involve each energy storage cabinet having its own small cooling system and distributing them in a decentralized manner. This way, there are many devices, the pipelines are complex, it takes up space and maintenance is also troublesome.
Our ingenuity: We adopt the concept of centralized supply. In a large energy storage station, such as a container, we set up a powerful "central cooling station", namely the main refrigeration unit. Then, through a carefully designed distribution manager (intelligent distribution unit), the coolant is precisely delivered to each battery "cooling blanket" that needs to be cooled down.
The benefits are visible:
Space-saving: The central cooling station is much smaller than a bunch of small coolers combined, and the equipment is more compact.
Energy saving: The pipeline design is optimized, and the water pump doesn't have to push the coolant so hard, thus saving electricity.
Easy maintenance: The main equipment is concentrated together, making inspection and maintenance much more convenient.
The shortcomings of the old method: The temperature control in the past might have been rather "rigid", running fixedly after setting a certain temperature, which was not flexible enough.
Huijue's ingenious idea: We equipped the system with a "brain" (intelligent control system). This brain can monitor the temperature and working status of each battery in real time. It will adjust according to: the actual temperature of the battery, focusing on cooling where it is hot, and based on the intensity of charging and discharging, it will cool down more when working hard and less when idle.
At the same time, it can also predict future job demands (prepare in advance). Dynamically adjust the flow rate and temperature of the coolant, or decide when to start the compressor and when to only use natural cooling.
It avoids the waste of excessive cooling, consumes less electricity by the cooling system itself, and at the same time ensures that the battery is always in the optimal temperature range, with the highest efficiency and the longest lifespan.
Huijue's goal: To enable energy storage systems to operate "calmly" and unlock more value!
In the view of Shanghai Huijue Technology, efficient liquid cooling technology is the key to unlocking the greater potential of energy storage systems and ensuring their long-term stable operation. Through the four ingenious measures of "uniform wrapping for heat dissipation", "skillful use of natural cold sources", "centralized and efficient cooling supply", and "intelligent on-demand regulation and control", the aim is:
Make the battery more "comfortable" (with smaller temperature differences and longer lifespan)
Make the cooling system more "worry-free" (with low energy consumption and high efficiency)
Make the entire energy storage power station more "reliable" and "cost-effective" (stable operation and high returns)
We believe that through these down-to-earth and effective technological optimizations, Huijue Technology's liquid-cooled energy storage solutions can create real value for customers and jointly promote the stable development of green energy!
