Introduction: The "First Line of Defense" for Safety Monitoring While flow batteries possess high intrinsic safety, factors such as cooling failure and electrolyte leakage can still lead
to thermal runaway risks. Capacitive non-contact level sensors, installed on the external wall, provide the earliest possible sensing and early warning for the system.
Multi-level Safety Early Warning System
Coolant Monitoring: Sensors are installed on the external wall of the expansion tank in the cooling system to monitor the liquid level in real time and issue warnings when the level is low.
Electrolyte Monitoring: Sensors are installed on the external wall of the storage tank to detect abnormal electrolyte drops.
Interlocking Protection: Triggers an emergency shutdown of the BMS when the liquid level is extremely low to prevent the accident from escalating.
Advantages of the Non-Contact Solution
No Leakage Risk: No openings in the pressure vessel, maintaining system integrity.
Corrosion Resistance: Avoids direct contact with coolant/electrolyte, resulting in a long lifespan.
High Reliability: All-solid-state design, resistant to vibration and shock, suitable for harsh environments.
Conclusion: Non-contact level monitoring constructs a reliable first line of defense for flow batteries, effectively preventing thermal runaway accidents through early warning.
