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With the development of the economy , oil , coal , natural gas and other resources are increasingly nervous , \Biomass as the fourth largest energy after oil , coal , natural gas has become the research and the focus of attention , especially straw boiler , but the straw boiler high temperature superheater fouling more serious problem . In this paper, for example, a power plant 75t / h straw boiler over high temperature superheater numerical simulation using FLUENT software . This article by appropriate simplified model of high - temperature superheater , create a physical model of the high-temperature superheater split divided local encryption technology superheater mesh grid quality . Flue gas flow of high temperature superheater area , is a gas-solid flow . Using the standard k-ε model for the numerical simulation of the gas phase , calculated using the SIMPLE algorithm , a reasonable set of boundary conditions , the velocity field of the gas phase , obtained through the analysis of the velocity field of high temperature superheater superheater before several tubes at the top of the tube , and after a few relatively easy to fouling the conclusions . The numerical simulation for a solid phase , using the particle trajectory model, the particle orbit model to simulate the trajectory of the particle phase in the gaseous phase on the basis . This paper, the trajectory of the different wind speeds , with the particle diameter of the particles , and the same wind speed , the locus of the movement of the different particle size studies, small diameter particles easier few tubes in the superheater before deposition and large grain the diameter of particles is easier to scour the bottom right corner of the superheater tubes , wear wall conclusions . And according to the results of numerical simulation , sootblowers transformation , achieved good results , verify the correctness of numerical simulation .
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