自然通风改善半封闭热源厂房热环境的研究

Reformation of Hot Environment of Semi-closed Heat-source Workshop by Natural Ventilation

对某钢铁公司高线厂房的热环境改造过程进行了调查分析。结果表明,自然通风的热源厂房高度一定时,降低进风窗的标高,能增加通风量,排放更多的余热,降低厂房内的平均温度;降低进风窗的标高,可使厂房内的热空气充分地与地面进行热交换,降低空气温度;为了保证室内气流组织的合理分布,在厂房内合理地布置设备和设置生产平台,可消除通风的涡旋区,改善作业区的热环境;设计合理的风流速度能提高作业工人的热舒适感。

An investigation on a typical heat-source workshop indicates that the average temperature of the heat-source workshop can be lowered down by reasonably locating the air inlet and outlet to reduce the height difference between the two. The equipment and operation platform in the workshop should be well arranged in order to ensure a reasonable distribution of the indoor airflow to improve the operation environment. An appropriate velocity of airflow can make the workers more comfortable.