320-通风窗送风量与气流组织形式对教室内空气污染物净化效率的影响研究.pdfVIP

通风窗送风量与气流组织形式对教室内空 气污染物净化效率的影响研究 （天津商业大学 金梧凤 1，毕晨，刘新明） 摘要：近年来我国的空气污染问题越来越引起人们的重视，考虑到青少年儿童健康成长 的要求，学校教室的空气质量尤为重要。通风窗可以很好地提高住宅房间中的室内品质，但 对于能否满足教室的需求还需要进一步的研究。本文根据我国对中小学教室建筑规范和中小 学教室空气质量要求的规定，通过实验方法研究通风窗送风量与气流组织形式对教室内空气 污染物净化效率的影响，为通风窗在教室的应用提供理论参考。实验结果表明，开启通风窗 能够有效降低室内 PM 浓度，且风速越大，室内各测点的 PM 浓度越低，但是不足够满足 2.5 2.5 CO 浓度的要求，且送风风速对于 CO 浓度的影响较小，较高送风速度仅能够略微延迟 CO 2 2 2 浓度超出标准值的时间，通风窗在教室的应用情况下应对CO2 的净化要求做进一步的改进。 气流组织方面合理的送排风组合能够有效的降低室内污染物浓度有排风的方案能够使室内 PM 浓度下降速率提高约 30%，室内CO 浓度上升速率降低 47.83%。 2.5 2 关键词：通风窗；送风量；气流组织形式；PM2.5 ；CO2 Research on the Influence of Ventilation Window Airflow and Airflow Organization Forms on Air Pollution Purification Efficiency in Classroom （Tianjin University of Commerce ，Jin Wufeng1 ，Bi chen ，Liu xinming） Abstract: In recent years, the problem of air pollution in China has drawn increasing attention. Taking into account the requirements for the healthy growth of children and adolescents, the air quality in school classrooms is particularly important. Ventilation windows can improve indoor quality in residential rooms, but further research is needed to meet the needs of classrooms. According to Chinas regulations on classroom building regulations for primary and secondary schools and air quality requirements for classrooms in primary and secondary schools, the experimental method is used to study the effect of air supply volume and air flow organization on the efficiency of air pollutants purification in classrooms. This is the application of ventilation windows in classrooms. Provide theoretical reference. The experimental results show that the opening ventilation window can effectively reduce the indoor PM2.5 concentration, and the higher the wind