建筑室内空气品质监测及通风控制策略研究

Research on building indoor air quality monitoring and ventilation control strategy

针对传统建筑室内空气品质监测专业性低、监测指标单一以及缺乏智能化与网络化的问题,本研究结合计算机和互联网技术,设计一款专业化和智能化的室内空气品质无线监测系统。首先根据系统需求,构建系统整体框架,并从硬件和软件两个方面进行设计。然后利用灰色关联分析法建立空气品质评价模型,对系统空气品质监测效果进行评估。结果表明,本系统可实现PM2.5、甲醛、CO_(2)、温度和湿度等多项室内空气指标的远程实时监测,解决传统建筑室内空气品质存在的诸多问题,具有一定的可行性和实用性。最后,根据系统监测得到的甲醛结果,提出自然通风、自然通风+空气净化器和机械通风3种通风控制策略,并通过对比分析3种通风控制策略发现,自然通风开窗1小时为最佳通风策略,可有效地控制室内甲醛浓度。

In view of the low professionalism of traditional building indoor air quality monitoring,single monitoring index and lack of intelligence and network,a professional and intelligent indoor air quality wireless monitoring system is designed combined with computer and Internet technology.First,the overall system framework is constructed and designed from both hardware and software aspects.to establish the air quality evaluation model and evaluate the air quality monitoring effect of the system.The results show that the system can realize the remote real-time monitoring of many indoor air indicators of PM2.5,formaldehyde,CO2,temperature and humidity,and solve many problems of traditional building indoor air quality,with certain feasibility and practicability.Finally,according to the formaldehyde results obtained by the system monitoring,three ventilation control strategies of natural ventilation,+air purifier and mechanical ventilation are proposed.Through comparison and analysis of three ventilation control strategies,it is found that the natural ventilation window for 1 hour is the best ventilation strategy,which can effectively control the indoor formaldehyde concentration.