How to install fire hydrants in public places?
Spraying is a smoke alarm system to prevent large fires caused by small fires. If there is a large fire, these cannot make people evacuate safely, so fire hydrants must be installed, generally two on each floor, one near the stairs, and one near the safety exit.
When a fire occurs, even if the fire hydrant cannot extinguish the fire, it must be able to evacuate the person safely. The mechanical smoke exhaust system is installed inside. In the event of a fire, even if it is far away from the fire, the smoke can be exhausted in a timely manner without being damaged by the fire. Exhaust smoke as much as possible, which can provide some convenience to rescue personnel.