Single Stage Water Pumping Station And Reservoir Classification Of Research About Reservoir Irrigation

According to the phenomenon of severe waste of irrigation ,This paper research the four parts'investment and annual operating costs (including pumping station, Water pipe ,reservoir and distribution system of water supply) of the irrigation system. In order to achieve annual cost of minimum. The main content of this paper and research results are as follows :(1)Various types of pumping stations are discussed in detail. And different water sources, water level, topographic and geological conditions such as the specific type can be used.(2)Coordinated Regulation of the pump (pump frequency control and regulation of combination valve) and simple frequency control in improving pump efficiency, both from the theoretical analysis and examples demonstrate, demonstrate synergistic regulation is better than simple frequency control The adjustment method.(3)Grade water pumping station on the single-and multi-grade water pumping station for energy analysis and comparison, are the same way as in the case of irrigation, the energy required for the same two ways better than the single-stage and carrying water. Classification methods for reservoir and single station classification discussed the water supply for water in the form discussed in detail to establish the form used in this paper(4)Four major parts of the system of investment analysis, investment function to establish the system, while the system's power costs and other costs to establish the system in operation cost function. According to the two functions, combined with engineering economics in the establishment of minimum criteria for classification of single station reservoir optimization model, and discussed methods of solving the model.(5)Diameter water pipelines established economic model, with the differential method to solve the model, by the general formula of economic diameter.