| The hydraulic transition process in pump station system are also known as the pumpstation water hammer phenomenon which often occurs in the distribution system of the pumpstation. The occurrence of the water hammer will not only bring catastrophic damage to thepump station system, but also bring significant loss of the production and living. Therefore, itis particularly necessary to study on the hydraulic transition process in pump station system.This article to the hydraulic transition process in pump station system as the researchobject, calculates on the basis of the characteristic line method, analyses and calculates theengineering example with Flowmaster software and elastic theory, eventually established thesimulation platform of the hydraulic transition process in pump station system.To achieve this goal, first of all, on the basis of the traditional two-dimensional modelanalysis research, using three-dimensional visualization methods to improve, putting forwarda new method of predicting the complete characteristic curves of water pump, to get completecharacteristic data intuitively, quickly and accurately.Programming use Matlab, Verifyingthrough an instance. The predicted result shows that the predicted data through the3d modelis Higher accuracy and the physical conception is more intuitive and understandable.Secondly, on the basis of improved prediction model,using Flowmaster (a1d fluidsystem simulation software)to simulate the hydraulic transition process in pump stationsystem and construct simulation platform: first using a typical example of the document tosimulate and calculate, realized the analysis and calculation of the hydraulic transition processin pump station system. Comparing the result and the result given in example verifies thecorrectness of the3d model and the software simulation and the feasibility of buildingsimulation platform.Finally, method of predicting pump complete characteristics data which combines2d and3d model and the constructed simulation platform are used in a lift irrigation station project inWenChuan. Through engineering applications and the comparison study of the simulationresults, Comprehensive evaluation of the security and stability in pump station system whenhydraulic transition process happens, and on this basis, further propose optimization scheme,the calculated result is reasonable and feasible, this can provide a reference for engineeringdesign, construction plans and scientific and reasonable running in the pump system. |