To determine the design of the pump station design flow and head, you can use the technical charts for pumps models and specifications to determine the method is as follows:
1. The use of performance specifications table pump pump pump plant selection in the catalog are available in this form, the table of the performance of each model has three lines of data, which acts in exactly applicable? General design flow and design of lift tables and performance should be listed in the middle of his values in line, or close to, and must fall on the upper and lower two lines of the framework, because the scope of the operation of efficient water pump region, This type of pump is deemed to meet the actual needs, water is selected.
2. The use of pumps Pump Selection Table according to the election to determine the design head and design flow, in the selection table, cross-table to find out and design of the first lift with the lift or similar values; again the first to find out in the vertical table with the the design flow line or flow close to the values, and vertical and horizontal intersect at a small box, it marked the pump model, pump Shortlisted. But sometimes there are two types of pump to meet the design requirements, at this time can be for these two programs pump compared to the techno-economic analysis, and then selected one of the appropriate type of pump. Such a choice of methods pumps easy and fast.
3. The use of pump performance of integrated spectra of the election will be centrifugal pump, axial flow pump, mixed-flow pump all of the work area integrated with a map drawn on, which constitute a series of comprehensive agricultural pump spectrum, the comparative mapping complex, but more convenient to use.
In accordance with the established design flow and design of lift in the type spectrum, the first ordinate in order to design the head to find out the requirements in line with the head, while the flow ranging from a few pumps, and then in the abscissa in order to design the flow to determine the selection of What kind of pump. If the design flow of large, single-pump did not meet the requirements of multi-machine operation could be considered, it should be noted that as far as possible the same types of pumps in order to facilitate the construction of the installation, management and maintenance.