密闭空间硫化氢泄漏喷淋捕消实验研究

Experimental study on spray capture and elimination of hydrogen sulfide leakage in confined space

搭建密闭箱实验装置,使用30°超声波喷嘴,在纯硫化氢释放速率为60 L/min条件下,待密闭空间硫化氢体积分数达到0.1%和0.3%时,分别采用质量分数为3%的碳酸钠单一溶液和质量分数为3%的碳酸钠+体积分数为0.6%的过氧化氢混合溶液,进行泄漏硫化氢的喷淋捕消实验,捕消效率达到91.3%及90.7%时的用时分别为6 min 58 s和8 min 31 s。实验结果表明,喷雾雾化均匀、雾滴粒径小,混合溶液捕消效果优于单一溶液。

Experimental device was set up in a confined box,and a 30°ultrasonic nozzle was used to spray the leaking hydrogen sulfide at a pure hydrogen sulfide release rate of 60 L/min,when the volume fraction of hydrogen sulfide in the confined space reached 0.1%and 0.3%,respectively,using a single solution of 3%sodium carbonate by mass and a mixed solution of 3%sodium carbonate+0.6%hydrogen peroxide by mass.When the trapping efficiency reached91.3%and 90.7%,the time spent was 6 min 58 s and 8 min 31 s,respectively.The results show that the spray atomization is uniform and the droplet size is small,and the mixed solution is better than the single solution to capture the elimination effect.