新型填充式空气净化器净化甲醛效果与计算模拟  

Removal of Formaldehyde with Novel Packed Air Purifier and Its Computational Simulation

作　　者：李玉华[1] 王琨[1] 赵庆良[1] 张力为[1] 袁中新[1,2] 

机构地区：[1]哈尔滨工业大学市政环境工程学院,哈尔滨150090 [2]台湾中山大学环境工程研究所,中国高雄80424

出　　处：《环境科学》2008年第9期2659-2664,共6页Environmental Science

基　　金：黑龙江省科技攻关项目(GC04C213);台湾中华发展管理基金委员会项目(2004)

摘　　要：针对室内空气低浓度甲醛污染，设计填充附着纳米二氧化钛玻璃珠（3 mm）空气净化器，并在密闭房间内对其净化效果进行实验分析.结果表明，甲醛初始浓度为0.727～1.815 mg/m3时，甲醛减少87.0%～93.8%，并建立了该空气净化器的反应速率方程。通过计算模拟，证实了净化器单个装置空气分布的均匀性。此外，还根据质量平衡建立了有甲醛持续释放污染房间内应用空气净化器后，甲醛浓度变化的数学模型，并通过实验验证了模拟结果的正确性。结果表明，间歇性应用此空气净化器可维持室内甲醛浓度低于国家空气质量标准0.1 mg/m^3.A novel air purifier was designed for the removal of indoor formaldehyde. The air purifier was filled with glass beads （3 mm） coated withTi02. The removal efficiency of this air purifier was examined in an airtight room. The results showed that 87.0%-93.8% of the formaldehyde was removed for the initial formaldehyde concentration of 0.727-1. 815 mg/m^3 . The reaction rate equation of the air purifier was developed. The simulation of single device of the air purifier suggested the uniformity of the air flow in the device. Besides, a mathematical model to simulate the variation of formaldehyde in a room was constructed, in which there was continuous formaldehyde emission source and the air purifier was operated. The simulation result was also proved by the experimental data. The results revealed that using the air purifier at intervals could steadily keep the formaldehyde concentration below the National Air Quality Standard of China, i.e. 0.1 mg/m^3 .

关 键 词：空气净化器 室内空气 甲醛 净化 模拟 

分 类 号：X51[环境科学与工程—环境工程]