Determination of the head of centrifugal circulation pumps
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How is the head of a centrifugal circulation pump determined? The pipe resistance is 400 KPa
System pressure, piping of process pipelines, medium conditions, etc
The head of a centrifugal pump is generally understood as the total head plus the pressure loss in the pipes
The formula for calculating the pump’s head is: H=(Pd-Ps)/ρg+(vd2-vs2)/2g+(Zd-Zs). It is necessary to know the position difference at the point of delivery, the frictional and local losses in the pipeline, the pressure difference, and the kinetic energy difference. It needs to be determined based on the different devices. The poster lacks sufficient parameters.
When the requirements are not strict, a rough estimate can be made: the pump head = the head required by the system * 1.1. Additionally, your pipe resistance is 400 KPa, which is quite high.
This post was last edited by Pseudo Xiao Bao on 2012-4-22 at 13:23 – insufficient conditions. Installation location, conveying height, pressure of the conveying device, flow rate, what the medium is, density and viscosity, temperature. . . . . . The head and pipe diameter of a centrifugal pump should be considered together
The formula provides the calculation equation for head during the performance test of the pump. When calculating the required head in a device, it depends on the specific device. The specific calculation is similar to the formula above; pipeline losses also need to be taken into account. Specifically as follows: Required head = pressure difference between the delivery location and the source / ρg + velocity difference between the delivery location and the source / 2g + positional difference between the delivery location and the source + pipeline losses.