Calculation of the head of the desulfurization circulation pump
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The head of the desulfurization circulation pump is calculated by using conventional solutions; the resistance coefficient obtained in this way is around 0.015 to 0.02. By taking into account the height difference between the inlet and outlet, the head can be determined, and an additional margin is added to meet the back pressure requirements of the nozzle in practical applications. Now, if a project requires that the backpressure error of the nozzle not exceed 0.5 m, this imposes requirements on the accuracy of the calculation of the pressure drop. To what extent do solid particles in the desulfurization slurry affect the resistance coefficient?
The drag coefficient affects the pressure drop in pipes.
Yes, in the past it was sufficient to leave some margin, but now precision is also required to ensure that spraying occurs at the lowest liquid level inside the tower. I looked up relevant information; the resistance coefficients vary considerably. However, when the height difference between the inlet and outlet is similar, the head loss is roughly the same, which is probably because the resistance loss in this section of pipeline is not significant.