基于光学波动法研究气固两相流扩散特性

Studies of Gas-Solid Two-Phase Flow Diffusion Based on Optical Wave Method

阐述了利用光学波动法测量颗粒浓度的原理,并在实验条件下,利用此原理,对前置空间组合弯头及内置楔形体的直流燃烧器出口不同截面气固两相流颗粒浓度分布作了测量研究,得出各截面浓度分布规律、扩散和衰减规律,可供分析电站锅炉稳定燃烧、节能及燃烧器改造参考.

A novel method of investigating the diffusion characteristics of the gas-solid two-phase jet flow is presented based on optical wave theory. The experiments were conducted to determine the particle concentration distribution in the gas-solid jet flow from the burner with an upstream combination elbow and an inner cuneiform. The results show such a method is effective to study the characteristics of the gas-solid multiphase jet flow, which can give information to design a burner with the ability of steady and low-pollution emission combustion in the power plant.