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利用人工环境舱进行实验,从衰减常数、去除率等方面分析了在置换通风下不同送风速度对负离子净化PM_(2.5)的影响。结果表明:负离子对PM_(2.5)具有净化作用;随着送风速度的增加,负离子对PM_(2.5)的净化作用先降低后增大。在保证工作区不会产生吹风感的情况下,所选的8个工况中,置换通风送风速度为0.3m/s左右时,负离子对PM_(2.5)的净化效果最佳,净去除率达到20.4%。
Experiments with artificial environmental chambers were carried out to analyze the effect of different blast velocities on anion purification PM_ (2.5) from the aspects of attenuation constant and removal rate. The results showed that negative ions could purify PM 2.5. With the increase of blowing velocity, the decontamination effect of negative ions on PM 2.5 firstly increased and then increased. In the case of ensuring that the work area does not produce a sense of hair blowing, the negative ions have the best purifying effect on PM 2.5 while the net ventilation rate is 0.3 m / s in the selected eight working conditions. The net removal rate Reached 20.4%.