Optimize system and method of hydropower station water turbine design

Abstract

The invention relates to an optimize system and a method of hydropower station water turbine design. The optimize method comprises that a parameter database and a model database are called according to characteristic parameters given by a hydropower station, and initialization results of each part of a flow passage of a water turbine are obtained; stability performance simulation is conducted to the whole flow passage, weight of different stability influence factors of each part is calculated, optimize modification opinions and measures of each part of the flow passage are obtained, and optimize design results are sent and saved. The optimize system for achieving the method comprises an overall processing module, a numerical calculation module, a weight analysis module, a data storage module, an influence factor indicator base and a method base. According to the optimize system and the method of the hydropower station water turbine design, comprehensive forecasting and assessment of different factors that influence stability of the water turbine are achieved, time in designing of the water turbine and optimize allocation combination of each part of the flow passage by designers is shortened, and therefore stability of a power station water turbine group and a workshop is improved.

Description

Technical field [0001] The invention involves the optimization system and method of a hydraulic machinery design. Specifically, it is the optimization system and method of a hydropower water turbine design. Background technique [0002] The stability indicators, efficiency indicators and airization indicators of water turbines are the three major performance indicators of the water turbine.The stability of the water turbine is related to whether the unit can run safely, the efficiency is related to the use of water flow energy, and the emptiness is not only related to the life of the unit, but also affects the stability of the water turbine to a certain extent.In the hydropower construction project, only water turbines with stable operation, high efficiency, and good anti -air erosion performance can have good power generation benefits. [0003] At present, the efficiency of water turbines can reach more than 90 %, and the performance of anti -airization has also greatly improved...

AI Technical Summary

Problems solved by technology

[0004] It is impossible to fully consider the traditional manual methods for the above-mentioned factors affecting hydraulic turbine stability and the judgment and analysis of the differences in the influence of various components in the flow channel. Modern technologies such as computer technology, computational fluid dynamics analysis technology, and database technology must be used to analyze Make a comprehensive, scientific and effective analysis and judgment on the stability of hydraulic turbines

In the existing optimization design of water turbines, software packages for water turbine selection and design have been developed, but the initial water turbine parameters and model structures cannot be optimized; while in the flow channel of water turbines, only pressure fluctuations can be used as engineering quantities measurement, but this measurement is labor-intensive and expensive

Moreover, since there is no complete similarity law between the model and the prototype, the pressure fluctuations predicted by the model measurement after design cannot be completely used as the basis for the stability of the turbine.

Images