This paper utilized the acetalization reaction characteristics of polyvinyl alcohol and formaldehyde under acidic conditions to fix activated carbon powder on the three-dimensional grid structure formed by the reaction,and produced a sponge like activated carbon material with rich pore structure,good water absorption,and easy cleaning.By using it in an indoor purification system based on adsorption-thermal storage coupling in assembled buildings,and based on low-energy and near-zero-energy building design requirements,air purification and thermal storage can be accomplished under zero-energy conditions.This paper analyzed the purification effect of the purification system on PM2 5 and PM10 under various operating conditions.The results show that under passive ventilation conditions,the purification efficiency of the system for PM2.5 and PM10 reaches the highest at 43.2％and 42.4％,while under active ventilation conditions,it reaches the highest at 92.4％and 94％,about 4％～6％higher than the untreated activated carbon thermal storage coupling system.It can purify indoor particles more efficiently in a short period of time.Moreover,the module materials of the system are easy to clean and regenerate.
关键词
空气净化/海绵活性炭/蓄热/PM2.5/PM10
Key words
air purification/sponge activated carbon/thermal storage/PM2.5/PM10
维普
万方数据