摘要
在密闭空间中,当人体新陈代谢产生的CO2浓度达到一定程度时会严重威胁避难人员的健康和生命安全。在分析国内外净化CO2方法的基础上,对矿用可移动式救生舱中人体CO2代谢的速率进行了试验研究,采用13XAPG型分子筛、钠石灰与超氧化钾药板3种不同的净化材料,对CO2的净化特性进行试验分析。研究结果表明:当CO2浓度小于3%时,13XAPG型分子筛对其吸附效果较差,不能起到有效的净化作用;65型超氧化钾对CO2吸收速率较高,在吸收CO2的同时释放O2,但其化学反应产生的热负荷较大,增加了密闭舱室的制冷需求;钠石灰具有对CO2吸收速率高、安全性好、产热少等特点,更适用于有制冷需求的密闭空间的CO2净化。
In a confined space,carbon dioxide(CO2) produced by human metabolism will seriously threaten the health and safety of the refuge persons after its concentration reached a certain level.Based on the study of CO2 purification methods used in foreign countries,experimental study on the human CO2 metabolism rate in a mobile mine rescue capsule was conducted,and experimental analysis on the purification characteristics of CO2 was also made by using 13XAPG-zeolite,soda lime and potassium superoxide.The study results showed that the adsorption effectiveness of 13XAPG-zeolite to CO2 was poor when CO2 concentration was less than 3%,and it can't play an effective role in purification;model 65 potassium superoxide had higher adsorption rate to CO2,it can release O2 while adsorbing CO2,but its chemical reaction may produce larger heat load,this thus increased the refrigeration requirement in the confined chamber;soda lime had the features of high absorption rate to CO2,good security and less heat generation,so it was more suitable for O2 purification in a confined space with refrigeration requirement.
出处
《矿业安全与环保》
北大核心
2012年第3期16-19,95,共4页
Mining Safety & Environmental Protection
