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Rust hydropower turbine type design in Xinjiang

. 9%. (3) units of traffic moved under the selected wheel diameter, turbine efficiency, calculated by reference to the maximum turbine flow. A calculated program, the program references the second turbine maximum flow were 1.30m / s, 3.74m / s. Units of flow from the two programs can be seen, unit traffic flow in the optimal conditions and limitations of unit unit flow conditions between the turbine operation in high efficiency area; when the turbine reference flow is reduced, can still be able to ensure high turbine efficiency of area to run, so both programs are consistent with traffic turbine unit selection requirements. (4) unit speed correction correction value when the unit speed \Option One unit speed correction value 0,5%, less than 3%, without amendment. Therefore, the maximum unit speed 84.3r/rain, the smallest unit of speed 81.2r/rain. Option Two unit speed correction was 0.6%, less than 3%, may be amended. Therefore, the maximum unit speed 76.1r/min, the smallest unit of speed 73.4r/min. Transfer of units under the two programs integrated Quick turbine characteristic curve, the control unit of the maximum unit speed and minimum speed, you can see, the two programs are in the unit speed high-efficiency area runner to run the two programs are in line with unit speed turbine selection requirements. According to the unit flow and calculated unit speed, check turbine integrated characteristic curve can be drawn: the program of a turbine efficiency was 92.1%, Option II turbine efficiency of 93.3%. Efficiency of the generator calculated by 93%, the program can calculate and program the second turbine generator for a practical power-generating capacity were 1064kW and 1061.6kW, super crew were 6.4% and made 6.1%, electricity price by 0.2 yuan terms, stand-alone increase in revenue per year, respectively 3. 7X10 and 3.6 × 10 yuan, an annual increase of income for Power 10.4 × 10 yuan and 10.2 × 10 yuan. 3, a program of the ICP,[link widoczny dla zalogowanych], the program calculated the second turbine parameters were compared in Table 2. It can be seen by comparing the two programs, two programs working head, wheel diameter are basically the same. The difference is, the efficiency of the program than the program for a second high; program a speed higher than that of Option II, Option One can rely on speed to 750r/min, the program can rely on the speed of two to 600r/rain, a power generation scheme series magnetic drive less than the second scheme, the corresponding frame size than the second scheme generator is smaller than the Option II program for a cheaper generator, Option One and Option Two references almost the same amount of water can be considered as the program I and program II reference to water equivalent; TY case of a program of the cavitation coefficient ratio of two small, the program of a runner than the anti-cavitation performance of the gifted program two, corresponding to a suction height of the program than the program two large, deep excavation of the program based on the second plant, large amount of excavation works, so plan a program of building construction investment than the corresponding two provinces. From the technical performance and economic indicators into account, one is better than Option II program, it is a finalized plan for the optimal solution. . 40. Zhao, Zhang Yan Shan: Xinjiang Rust hydraulic turbine type design as river water quality is better, less sediment, less abrasion of the turbine runner, the runner can be common steel material manufacturing. To save costs, therefore, this project use an ordinary steel runner runner. As the head of a small power plant, the flow is small, the selected small diameter of Francis Turbine Runner, so for installation of horizontal units, so the selection of the turbine project is: HL820 A wJ a 71.4 Conclusion In the turbine selection, on The working head turbines, wheel diameter, speed, runaway speed, the maximum runaway speed, maximum efficiency, the rated output, the maximum reference traffic, height of aspiration should be compared to select the optimal solution; but in the choice of units,[link widoczny dla zalogowanych], they also combination of hydraulic and civil engineering to a comprehensive comparison, for engineering and elected to the optimal models of low cost and better services for the owners. In the calculation,[link widoczny dla zalogowanych], you can use some advanced computer program, such as turbine manufacturers turbine used in selection procedures can also be used MicrosoftExcel form,[link widoczny dla zalogowanych], make a template, can greatly reduce the workload and improve efficiency.
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