采用地暖加热加速新装修房屋室内甲醛释放

发布时间：2018-04-17 22:15

本文选题：地暖加热 + 室内空气　；参考：《环境科学与技术》2016年S2期

【摘要】：甲醛已成为危害人体健康的室内空气首要污染物。该文以成都市三环内新装修房屋的3个独立卧室和书房(10~20 m~2)为研究对象,系统研究了采用地暖加热对消除室内甲醛污染的效果。未加热时,甲醛初始浓度为0.240~0.253 mg/m~3。采用连续三轮地暖加热处理,每轮加热7 d,并检测甲醛含量,然后自然冷却通风3 d。研究结果,第一轮加热后甲醛浓度均值为0.141~0.158 mg/m~3,第二轮后达到0.119~0.150 mg/m~3,第三轮则达到了0.060~0.064 mg/m~3。三轮次地暖加热后,甲醛含量共降低72.7%~77.9%。表明地暖加热对新装修房屋的甲醛释放有明显效果。三轮处理后3个卧室的室内甲醛浓度均与室内温度呈显著负相关,相关系数分别达到-0.844、-0.863、-0.805(p0.01)。采用地暖加热的物理方法,可以加速新装修房屋甲醛释放,快速达到平缓期,缩短空置时间。
[Abstract]:Formaldehyde has become the primary pollutant of indoor air which endangers human health.Taking the three independent bedrooms and study rooms of newly decorated houses in the third Ring Road of Chengdu as the research object, the effect of using ground heating to eliminate indoor formaldehyde pollution was studied systematically.When unheated, the initial concentration of formaldehyde is 0.240 ~ 0.253 mg / m ~ (3).Three consecutive three rounds of ground heating were used, each round was heated for 7 days, formaldehyde content was measured, and then natural cooling and ventilation for 3 days.The results show that the mean value of formaldehyde concentration in the first round is 0.141 ~ 0.158 mg / m ~ (3), after the second round is 0.119 ~ 0.150 mg / m ~ (3), and in the third round is 0.060 ~ 0.064 mg / m ~ (3).After three rounds of heating, formaldehyde content decreased 72.7% and 77.9%.It shows that the heating of ground heating has obvious effect on formaldehyde release of newly decorated houses.There was a significant negative correlation between indoor formaldehyde concentration and indoor temperature in the three bedrooms after three rounds of treatment, and the correlation coefficients were -0.844 ~ 0.863 ~ (-1) ~ (-0.805) (p ~ (0.01)) respectively.The physical method of ground heating can accelerate formaldehyde release from newly decorated houses, reach flat period quickly and shorten vacancy time.
【作者单位】：四川大学建筑与环境学院;四川大学外国语学院;
【分类号】：X51

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