Water supply design of fire hydrant pool: water supply is different from elevator, and there is basically no pipeline loss. The accurate algorithm is to select the most unfavorable computing unit and use the most unfavorable pipeline. The water conservancy calculation is too detailed to be necessary. The water supply of fire hydrant is the sum of indoor fire hydrant and outdoor fire hydrant (if the outdoor fire hydrant is connected to the outdoor pump of the pool and the municipal pipe network, a small amount of supplementary flow of municipal pipe network can be deducted). According to the corresponding floor type, the indoor and outdoor water consumption of the corresponding building is found out in the high code and building code respectively. If the water consumption of the pool is finance and trade building, library, stacks, important archives, scientific research building, and high-class hotel of business exhibition complex building, it is calculated according to the guarantee of 3.00h, and other high-rise buildings are calculated according to 2.00h (there is no need to take it, assuming there is only one fire at the same time, the fire protection system is adopted, but the building with the highest fire protection requirements should be selected for design. )

Fire sprinkler calculation: design flow calculation, select the most unfavorable action area, and calculate the pipeline by point-by-point water conservancy method. Generally speaking, choose the highest and farthest action area (160m2 or other specifications according to the type), and choose the root sign of the square root of160 for the long side. (When designing, calculate the flow rate of the most unfavorable nozzle with the water pressure and coefficient of the most unfavorable point and then calculate it continuously) Determine the number of nozzles in the rectangle (generally16,7), and multiply the average flow rate of nozzles by the energy. Spraying shall be calculated as per guarantee1h.

Finally, if the total water volume exceeds 500, it will be divided into two parts.