In modern society, commercial and industrial sites need to be equipped with battery backup facilities to provide short-term backup power in the event of power outages. Examples include emergency care units, data centers, universities, process/manufacturing applications, banks and stock exchanges, etc. Lead-acid batteries produce hydrogen gas during the charging and discharging process in storage rooms in most cases. Hydrogen is explosive at of 4%vol in air.
Hydrogen gas detector for battery room can continuous monitoring hydrogen concentration in air. Since lead-acid batteries produce small amounts of hydrogen gas during charging, it is critical to monitor the area with a hydrogen detector. Hydrogen gas is explosive when it reach 4% in air, and battery storage facilities are usually located in closed areas such as battery rooms. So, a fixed H2 analyzer is a must to monitor gas concentration in air. Even if there is ventilation in the room, it cannot be completely relied upon. Hydrogen is lighter than air. If any leakage occurs, the gas will rise and accumulate at the highest point of the room. The hydrogen detector should be installed at the highest, windless position in the battery room, which is about 30CM from the ceiling.
The hydrogen detector can continuously monitor the increase of hydrogen concentration in the environment. For battery storage areas, which are usually unmanned, the gas detector is equipped with a relay. When the hydrogen concentration reaches a certain value, the fan ventilation is started and an alarm sound is sounded. For example, when the concentration reaches 25% LEL, the detector will start the fan to sound an alarm, SMS notification, email notification, or send a remote alarm signal about the increase of hydrogen concentration to the BMS to avoid explosion accidents.
In addition to installing fixed hydrogen detectors, we are also equipped with gas alarm control cabinets, which are installed in the monitoring room with staff. The other end is connected to the hydrogen detector. The gas control cabinet displays the gas concentration in real time and sounds an alarm when the alarm value is reached. It can be linked to an external solenoid valve or ventilation equipment.