Fire engine fire pump pressure is low, what's the matter?
If the water is raised to the height of 200m from the surface of the water source, its discharge amount can reach 40L/S. Set level upgrade, you need to set up at 100m height of a power of 69.07kw pumps, the total power of those two pumps is about 140KW.
Now the pump power is only 85.95KW, pump the water from the water surface to enhance the height of 200m, although 86KW a lot higher than that of the 69KW power, but with the increase of mechanical lift, efficiency will be reduced, the head loss will increase, the amount of water it will not be able to power and lift the proportion, can only reach 20L/S. According to the law of conservation of function, that is, regardless of the mechanical efficiency and head loss, the water discharge at the height of 200m should reach 40L/S. At the very least 140kW power, 86KW, of course, is far from, so the traffic is small.
0.1MPa is equivalent to 9.8m head, general 10m, the pump power reached 69.07kw, pressure is 1.0MPa, and its flow is 40L/S, it is said in the pump power reached 69.07kw, head of 100m, that is to pump the water from the water surface in the 100m height, at the height of 100m, it's out the water can reach 40L/S
