Energy storage power stations, like a large power bank, are very important for new energy power grids. But did you know? They can also "fever" when working! Especially when charging and discharging quickly, the battery temperature rises rapidly, which not only affects efficiency, but also shortens the battery life, and in severe cases, it can also bring safety hazards.
How to "cool down" it efficiently? Shanghai Huijue has explored several good 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, just like blowing a fan only on the soles of the feet. The upper body of the battery is still hot, and the temperature difference is large, 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 special "cool quilt" (liquid cooling plate) with a water flow channel. The coolant circulates in these "cool quilts" to cool the battery from all directions at the same time.
The benefits are obvious: In this way, the temperature of the entire battery pack is very uniform, and it will not be "hot on the head and cold on the feet". The temperature difference is small, the battery output is more consistent, the life 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 "huff and puff" regardless of whether it is cold winter or hot summer outside, which is particularly energy-consuming.
Huijue's ingenuity: Our system is particularly "smart"! It is equipped with an ambient temperature "sensor". When the weather is cool (such as spring and autumn or cool nights), and the outdoor temperature is lower than the cooling temperature required by the battery, the system automatically switches to "natural cooling" mode. At this time, only a small water pump is needed to send the coolant to the external heat sink (similar to the car water tank), and the cool air can be used to dissipate heat naturally, and the compressor is completely at rest! The compressor is a large power consumer. When it is not used, the electricity bill of the entire cooling system can be saved by more than half. In a year, the energy efficiency improvement is very considerable.
Some solutions are that each energy storage cabinet has its own small cooling system and is distributed. This way, there are many devices, complex pipelines, space occupation, and troublesome maintenance.
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", that is, the main refrigeration unit. Then through a set of carefully designed distribution butlers (intelligent distribution units), the coolant is accurately delivered to each battery "cooling blanket" that needs to be cooled.
The benefits are visible:
Space saving: The central cooling station is much smaller than a bunch of small coolers added together, and the equipment is more compact.
Energy saving: The pipeline design is optimized, and the water pump does not have to work so hard to push the coolant, which saves electricity.
Easy maintenance: The main equipment is concentrated together, which is much more convenient for inspection and maintenance.
The shortcomings of the old method: The previous temperature control may be relatively "rigid", and it will run fixedly after setting a temperature, which is not flexible enough.
Huijue's ingenuity: We have installed a "brain" (intelligent control system) in the 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, and focus on cooling where it is hot), according to the intensity of charging and discharging, more cooling when working hard, and less cooling when idle,
At the same time, it can also predict future work needs (prepare in advance). Dynamically adjust the flow and temperature of the coolant, or decide when to start the compressor and when to use natural cooling only.
Avoiding the waste of excessive cooling, the cooling system uses less electricity, and at the same time ensures that the battery is always in the optimal temperature range, with the highest efficiency and the longest life.
In the view of Shanghai Huijue Technology, efficient liquid cooling technology is the key to unlocking the greater potential of the energy storage system and ensuring its long-term stable operation. Our four tricks of "evenly wrapping heat dissipation", "cleverly using natural cold sources", "centralized efficient cooling", and "intelligent on-demand regulation" are to:
Make the battery more "comfortable" (small temperature difference, long life)
Make the cooling system more "worry-free" (low energy consumption, high efficiency)
Make the entire energy storage power station more "reliable" and "more cost-effective" (stable operation, high returns)
We believe that through these down-to-earth and effective technical optimizations, Huijue Technology's liquid cooling energy storage solution can create real value for customers and jointly promote the stable development of green energy!
