基于CFD模拟自动追踪太阳能UASB反应器流场研究

Research on CFD Simulating Flow Field of the Automatic Tracking Solar-heated UASB Reactor

UASB反应器作为第二代厌氧生物反应器的杰出代表,在污水厌氧生物处理领域有着举足轻重的地位。温度是影响UASB反应器厌氧消化最重要的因子之一。本文基于对自动追踪太阳能UASB反应器的温度供给方式进行改进,通过CFD技术进行改进后的UASB反应器与传统UASB反应器内部流场模拟。重点分析温度供给方式的改变对反应器的温度场、静压力场及速度矢量分布的影响,结果表明改进后的供温方式使UASB反应器更具有优势。自动追踪太阳能UASB反应器利用太阳能,产生的沼气可以被充分利用,具有显著节能减排特点。

As an outstanding representative of the second generation anaerobic reactor,UASB reactor plays an important role in the field of anaerobic biological treatment of wastewater.Temperature is one of the most important factors that affect the anaerobic digestion of UASB reactor.This paper based the way of the automatic tracking solar-heated UASB reactor temperature-supply improvement,through the CFD technology to conduct the improved UASB reactor and the traditional UASB reactor internal flow field simulation.Focuses on the analysis of the temperature-supply improvement on the reactor temperature field,static pressure field and velocity vector distribution effect.The results show that compared with traditional UASB reactor for temperature method,the improved UASB reactor has more advantages.The automatic tracking solar-heated UASB reactor using solar energy,biogas produced can be fully utilized,with significant energy-saving emission reduction characteristics.