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近几年各地相继兴建了秸秆气化供气系统,这从改善农村能源结构,提高农民生活质量和改善环境来看确实是件好事,但也出现了不少安全问题,CO中毒、爆炸、着火等事故时有发生,造成人身伤亡和财产损失。目前用于秸秆气化供气有2条工艺路线,即间接加热的干馏气化路线和空气氧化气化路线,这2条工艺路线均存在不安全因素:开工前,设备、管网内的气体置换,即要把设备、管网内的空气置换成燃气,最安全的办法是先用N_2置换空气,再用燃气置换N_2,目前农村无N_2源,做不到这
In recent years, straw gasification and gas supply systems have been built around the country. This is indeed a good thing in terms of improving rural energy structure, improving peasants’ living quality and improving the environment. However, many safety issues have also emerged. CO poisoning, explosion and fire Occur when accidents occur, causing personal injury and property damage. At present, there are two technological routes for straw gasification and gasification, that is, an indirect heating retort gasification route and an air oxidation gasification route. Both of the two process routes have unsafe factors: before starting, the gas in the equipment and the pipe network Replacement, that is to be replaced by equipment, pipe network gas into gas, the safest way is to replace the air with N_2, gas and then replace N_2, the current rural N_2 source, can not do this