Hello! The drainage system is very important in power plants. Take the boiler as an example: drainage is generally not used in normal production when the boiler is at the start of start-up or at the end of shutdown, due to the relatively large temperature difference. the pipeline, water droplets are generated in the pipeline. If this water is not released in time, it will cause pipeline water impact. In severe cases, it will rush to the steam turbine with the steam pipeline, causing damage to the turbine. fan blades. Therefore, several external drain valves are installed on the boiler, usually located at the bottom of the steam system or at pipe elbows and valves at the steam outlet. Additionally, as the name suggests, water flushing involves removing excess water. Typically, an accidental drain is installed at the drum at vwater level, and its open position is usually slightly lower than the normal water level of the steam drum. I hope I can help you.
Diameter 150㎜=0.15/2=0.075*0.075*3.1416=0.0177*1.5=0.027, P=9.81HQn=9.81*100*0.027*0 .8=21.19kw
Through theoretical calculation: the cross section of the pressure pipe is 0.0177 m2, the flow rate is estimated at 1.5 m/S, the flow rate = 0.027 m2 /S and the theoretical energy production can be 21.19 kW, 1 h = 21.19 kW.h (degree).