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Did you know that the fire-fighting pressure stabilizing equipment is the "heart monitor" of the fire-fighting system in high-rise buildings. It consists of a pressure stabilizing pump, a diaphragm air pressure tank and an intelligent control cabinet. Its core task is to maintain the pressure of the fire-fighting network stable 24 hours a day.
The fire-fighting network will cause the pressure to slowly drop
due to micro-leakage of valves (such as 1%-3% of water leakage per
day)1. When the pressure drops to the lower limit (such as
P3=0.26MPa), the fire-fighting booster and pressure-stabilizing
pump automatically starts to replenish the pressure; it stops 410
after rising to the upper limit (such as P4=0.31MPa).
The air pressure tank acts as a "pressure buffer": the internal
rubber diaphragm isolates the air from the water, and the air bag
expands to squeeze out the water to replenish the pressure when the
network is depressurized, reducing the frequent start and stop of
the pump (≤15 times per hour)15.
When a fire occurs, the fire hydrant uses a large amount of water,
causing the pressure to drop sharply. When the pressure drops to
the starting value of the fire main pump (P2=0.16MPa), the
equipment instantly sends a signal to start the fire main pump, and
the pressure-stabilizing pump stops at the same time. The 300L of
water (about 30 seconds of use) stored in the air pressure tank
ensures that the fire water is sprayed out as soon as possible to
extinguish the golden fire
Power(kw) | Flow( m³/h ) | Head( m ) | Pressure tank |
1.5 | 3.6 | 30 | 600 |
1.5 | 3.6 | 30 | 800 |
1.5 | 3.6 | 30 | 1000 |
2.2 | 5.4 | 30-40 | 600 |
2.2 | 5.4 | 30-40 | 800 |
2.2 | 5.4 | 30-40 | 1000 |