There is a formula.
1, the flow rate according to the user's water point of each household, according to the water equivalent statistics;
2, head according to the least use of the water point height plus the local loss, the extended range loss and rich head can be obtained;
3, according to the flow rate head, according to the pump you want to choose, you can choose the right model, you can know the pump power;
4, pipe diameter According to the economic flow rate can be obtained; the formula is:
Pipe diameter: DN = [4Q / (V × 3.14 × 3600)] 0.5 × 1000, where: Q: for the pump flow rate m3 / h, V: water flow rate m / s, DN: nominal diameter of the pipeline mm
5, the flow rate of the water is generally in accordance with the economic flow rate calculations:
Diameter of the pipe (mm) DN <250250≤DN≤10001000≤DN≤1600DN≥1600
Inlet pipe flow rate (m/s) 1.0-1.2; 1.2-1.6; 1.5-2.0; 1.5-2.0;
Outlet pipe flow rate (m/s) 1.5-2.0; 2.0-2.5; 2.0-2.5; 2.0-3.0. 3.0.
Expanded Information:
Water supply equipment classified as:
1, fire-fighting water supply equipment: for fire-fighting purposes of water supply equipment.
2, living water supply equipment: water supply equipment for living purposes.
3, production water supply equipment: water supply equipment for production purposes.
4, sewage treatment water supply equipment: water supply equipment for sewage treatment purposes.
5, other: equipment for the production of water supply equipment for the production of water for the dual-mode industrial and mining enterprises.
Baidu Encyclopedia - water supply equipment
Baidu Encyclopedia - water pumps