7.6.6 The following rooms in high-rise buildings shall be equipped with automatic fire extinguishing systems other than haloalkanes 1211 and 1301: 7.6.6.1 Oil and gas boiler rooms and generator rooms diesel must be equipped with automatic sprinkler fire extinguishing systems. 7.6.6.2 May Water spray or gas fire extinguishing systems should be installed for fuel oil immersed power transformers, fuel oil filled high voltage capacitors and multi-oil switch rooms.
The fire water consumption of an object or protected area inside is the sum of fire hydrant water, automatic extinguishing water fire, water curtain or cooling separation water (all three are turned on at the same time).
When there are several protection objects or protection zones inside, the water consumption dFire fighting should be calculated separately for each protection object or protection zone, and the largest is the fire fighting water consumption inside the building.
Therefore,
The designed water consumption for the water spray fire extinguishing system in the diesel generator room is 60 m3 and does not does not need to be included in the total water consumption
The automatic fire extinguishing system includes automatic fire extinguishing by spraying, water. For systems such as spray fire extinguishing and automatic water cannon fire extinguishing, the water consumption of the automatic fire extinguishing system of a protected object or area protected is determined based on the system with the greatest water consumption.
Therefore,
The design flow rate of the wet sprinkler system is 30 L/S;
The flow ratedesign specification of the pre-action sprinkler system is 20L/S,
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The largest is 30L/S
According to the design specifications of the automatic sprinkler systems
5.0.11? Unless otherwise specified in this specification, automatic sprinklers. The continuous water spraying time of the fire extinguishing system should be determined based on the duration of the fire which is not less than 1 hour.
Therefore,
The water consumption of the automatic watering system is:
30×3600×0.001=108m3
Pay attention to the unit Conversion, 1h=3600s, 1m3=1000L
The subsequent calculation can be directly 30×3.6=108m3
So
The indoor fire water consumption of the building unit should not be less than 432+108+150=690m