【摘要】 在装有不同直径导流管的塔中,采用能悬浮于水中的固体示踪颗粒测量液体循环时间,提出无因次循环时间（θc）和液体循环速度(V_LR)的实验关联式.在导流管充气的塔中实验获得最小液体循环时间的临界直径比（D_R/D_o）_c当（D_R/D_o）≥（D_R/D_o）_c时,θ_c和 V_LR值的计算可采用环隙区中充气塔的相应关联式.更多还原

【Abstract】 The liquid circulation time in the internal loop reactor （0.112 m in diameter） with draft tubes of three different diameters is measured with solid tracer particles which can be suspended freely in water.Experimental correlations for dimensionless circulation time（θ_c） and liquid circulation velocity(V_LR)are proposed. It is found experimentally that the minimum liquid circulation time occurs at a critical diameter ratio（D_R/D₀）_c in draught tube sparged reactor.When D_R/D₀≥（D_R/D₀）_c,the predicted values of θ_c and V_LR may be calculated by the corresponding correlation for the annulus sparged reactor.更多还原