Computing power export
Publish: 2021-04-12 17:28:28
1. Theoretically, it needs to be calculated one by one. According to my personal experience, the outlet of fire hydrant needs 0.2MPa pressure, and then select the farthest and highest hydrant outlet as the most unfavorable point. The resistance is calculated according to the flow rate (generally there is an estimated value), and the head of water pump is determined after adding the allowance
when selecting the pump according to the characteristic curve of the pump, the section with the highest efficiency is generally selected
different pumps have different characteristic curves. The fire pump should choose flat curve pump instead of steep drop pump
different buildings have different requirements. The main thing is to see how much full water column is required. Then look up the table to see how much pressure is required to reach the water column, and you will know what the most unfavorable pressure is< br />
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