坑道空气净化技术应用及其装置研制

APPLICATION OF AIR PURIFICATION TECHNIQUES AND DEVELOPMENT OF A DEVICE FOR PURIFYING AIR IN TUNNEL

目的为解决平战时坑道中化学与生物性空气污染对进驻人员身体健康的影响,探讨应用空气净化技术并研制净化装置。方法利用组合净化技术与方法通过高效过滤单元,去除颗粒物;采用低温等离子体和纳米光催化净化单元,消除或杀灭化学污染物和微生物。结果研制的坑道空气净化装置样机对不同浓度的典型空气污染物1 h平均净化率分别为:H2S 100.0%,SO294.9%,NO292.8%,NH384.3%,CO297.6%,CO 68.8%,甲醛100.0%,苯96.4%,甲苯94.5%,二甲苯90.5%,颗粒物91.3%,细菌总数100.0%。坑道现场试用可有效净化空气微生物、总悬浮颗粒物以及CO、CO2、总挥发性有机物TVOC等有害气体。结论研制的空气净化装置可对坑道内典型的化学污染物及大肠杆菌代表的微生物进行有效地去除或杀灭,现场试用结果表明可有效保证坑道空气质量。

Objective To eliminate the chemical and biological pollutants in military tunnel to ensure the health of personnels in it, the techniques of air purification were used and a device was developed. Methods The combined technique and method were adopted. The particle matters were removed by the filter unit; the chemical and biological pollutants were eliminated or exterminated by plasma and nano - photooxidation unit. Results The average purification rates to the pollutants at different concentrations in 1 h were as follows： H2S 100.0% ,SO2 94.9%,N02 92.8% ,NH3 84.3%, C02 97.6%, CO 68.8%, formaldehyde 100.0%, benzene 96.4%, toluene 94.5%, xylene 90.5%, particle matters 91.3%, total bacterial count 100.0%. The experimental results in tunnel field showed that this purification device could effectively eliminate air bacteria, total suspended particle matters, and hannfiA gases such as CO, CO2, and total volatile organic compounds（TVOC）. Condusion The air purification device can effectively eliminate the typical chemical and biological pollutants in ttmnds, and the field-test showed that the air quality is guaranteed.