Lead-acid batteries may produce flammable gases such as hydrogen under certain conditions. If the gas accumulates and encounters a fire source, there is a risk of explosion. Therefore, the explosion-proof design of the lead-acid battery box is extremely critical.
First, ventilation and gas discharge design are the basis. The lead-acid battery box should have a good ventilation structure, such as reasonably setting vents on the box body, and its position and size must be accurately calculated and simulated. The vents must ensure that the flammable gases such as hydrogen generated during the operation of the battery can be discharged to the external environment in a timely manner to reduce the concentration of flammable gases in the box. At the same time, a gas one-way valve can be installed at the vent to only allow the gas to be discharged to the outside to prevent external fire sources or air from flowing back into the battery box and causing danger. Such a design can effectively prevent the accumulation of flammable gases in the box and reduce the possibility of explosion from the root.
Secondly, fire source isolation and control means are indispensable. The electrical circuit inside the battery box should adopt a fireproof and explosion-proof design, and the circuit joints should be specially treated to ensure that the connection is tight and no electric sparks are generated. For example, use sealed connectors to prevent the circuit from being exposed to the outside and contacting flammable gases. For the static electricity that may be generated in the battery box, static electricity can be discharged to the ground in time by installing static electricity removal devices to prevent static electricity discharge from causing explosions. In addition, a certain safety area is set around the battery box, and flammable and explosive items are prohibited to be placed to reduce the threat of external fire sources.
Furthermore, pressure release and explosion-proof structure design are crucial. When the gas in the battery box expands rapidly due to unexpected circumstances and the pressure rises rapidly, a corresponding pressure release mechanism is required. An explosion-proof valve is set on the battery box. When the pressure in the box exceeds a certain threshold, the explosion-proof valve automatically opens to quickly release the pressure to prevent the box from exploding due to excessive pressure. At the same time, the shell of the battery box is made of high-strength, impact-resistant and tough materials. Even when the internal pressure is suddenly released and impacts are generated, the structure can be kept intact and will not break into fragments and splash to cause secondary damage.
Finally, the monitoring and early warning system provides additional protection for explosion prevention. A gas concentration sensor is installed in the battery box to monitor the concentration of flammable gases such as hydrogen in real time. Once the concentration exceeds the safety standard, an alarm signal is immediately issued to remind the user to take measures, such as stopping charging or discharging operations and strengthening ventilation. Through this active monitoring and early warning mechanism, potential dangers can be discovered and dealt with in a timely manner before they occur, greatly improving the safety of lead-acid battery box use, effectively reducing the probability of explosion accidents, and ensuring the safety of personnel and property.
