Research On The Optimized Methods And Energy-consumption Analysis Of Industrial Steam Turbine

With the rapid development of global industry,the problem of environmental pollution and energy shortage has become increasingly prominent.People gradually realize the importance of sustainable development.In industrial production,industrial steam turbine as a large energy-consumption part,its energy consumption characteristics is essential to energy-saving.This paper analyzes the current situation of industrial turbine energy consumption modeling and related research,and studies the industrial steam turbine module division,energy consumption meta-model,energy consumption correlation model and energy saving optimization methods.By setting a 600MW steam turbine system as an example to verify the model and method proposed above,this paper finally developed a set of green design management system of steam turbine.The first chapter elaborates related research status both home and abroad on the model of industrial steam turbine,introduces energy consumption calculation method and its influencing factors,and then analyzes the shortcomings of traditional energy calculation method used in industrial steam turbine before,clarify the research object and research purposes.At last,the research contents,organization structure and technical line are given.The second chapter puts forward a multiple granularity weight module partition method to analyze granularity and weight of each module of industrial steam turbine based on multiple granularity and rough number theory.According to the modeling method of the process-oriented and object-key,establishes the mathematical model and parameter relation integration model.In the third chapter,energy consumption element and energy consumption correlation model of industrial steam turbine under different working conditions is studied.Considering the difference between designed conditions and operating conditions on energy consumption value,a hybrid calculation method of energy is proposed under variable conditions based on the traditional calculation method of energy consumption.According to the common characteristics of energy flow system,the paper then focuses on constructing energy consumption model of the steam turbine.To set the energy consumption value as dependent variable based on energy consumption element,an energy consumption correlation model is established based on the idea of reverse modeling to study related factors of energy consumption and its incidence relation.The fourth chapter extracts variables features from energy consumption correlation model of industrial steam turbine,and validates the validity of the characteristic variables.The iterations determine the number of optimal principal components,analyze the importance of the factors,and establish the correlation factors model,to study the mechanism of various factors affecting energy consumption,and put forward the energy-saving optimization method.In the fifth chapter,the method is applied to the 600MW supercritical condensing steam turbine,and the simulation model of the key module is established.The validity of the relevant theoretical model and energy saving optimization method is verified,and the visualization results of each thermal parameter are calculated and Applied to variable energy consumption calculation,developed a set of energy consumption as the core of the green turbine design management system.