Fire pump
Thread Content
When centrifugal pumps are used in the design of fire pumps for commercial oil tanks, how can it be ensured that water can always be drawn in? What are some good methods for filling fire pumps these days?
The pump should be installed with its suction inlet below the liquid level of the fire tank.
Factories usually have fire water tanks; with a high liquid level in these tanks, the water can flow automatically into the pumps
The second and third floors together constitute the complete answer!
The design specifications for oil depots require that there be a sufficient time for fire suppression; therefore, fire ponds or tanks must be constructed. As long as the pump inlet is below the outlet of these ponds or tanks, your problem will be solved.
If the installation height of the centrifugal pump is lower than that of the fire tank, then this problem certainly does not exist. However, our unit experiences exactly this phenomenon regarding the issue raised by the poster, and the solution is that the fire pump is equipped with a water intake device. When the pump outlet pressure exceeds 0.3 MPa, the water intake device will be pushed open by the hydraulic system.