【摘要】 针对采用气提技术实现回流的一体化污水处理装置,研究了升液管浸没深度和气量对回流量的影响,计算并校核了效率系数η,同时对比了装置不同安装形式的保温效果。结果表明:随着浸没深度和气量的增加,回流量逐渐增大,但气量的增加会对空气利用率产生不利影响。在试验条件下,效率系数η取值为0. 21～0. 60,且与浸没深度h、提升流量Q和空气用量W均呈负相关。相比地上装置,地埋装置具有更佳的保温效果和恒温稳定性,特别是在气温低于0℃的冬季,地埋装置具有明显的保温优越性。更多还原

【Abstract】 Focusing on the integrated sewage treatment device applying air lift technology to realize reflux,this paper studied the effect of riser tube immersion depth and air consumption on the quantity of reflux. The efficiency coefficient η was calculated and checked,and the heat preservation effect of different installation forms was compared. The results showed that:the quantity of reflux gradually increased with the increase of immersion depth and air consumption,however,the increase of air consumption had an adverse impact on air utilization efficiency. Efficiency coefficient η was in the range of 0. 21 to 0. 60 under test conditions,and also,it was inversely related to immersion depth h,quantity of reflux Q and air consumption W.Compared with over-ground installations,underground installations had better heat preservation effect and constant temperature stability,and underground installations had an obvious heat preservation superiority especially in winter when the air temperature was below 0 ℃.更多还原