移动热湿源廊道热环境的改善及送风参数优化

Thermal Environment Improvement and Air Supply Parameter Optimization of Mobile Heat and Humidity Source Corridor

为有效改善具有移动热湿源的高温高湿廊道热环境,给工人提供舒适的工作环境。以邯郸市某铁渣转运廊道为依托,建立廊道空气与皮带表面热湿耦合传热物理模型,定性分析不同送风温度、送风风速、铁渣温度、皮带运行速度条件下廊道热环境的改善效果,定量探究其对廊道热环境的影响程度,并拟合各影响因素与廊道温度的相关经验关联式。结果表明:对廊道热环境影响程度由大到小依次为:送风温度、送风风速、铁渣温度、皮带运行速度。送风温度越低,送风风速越高,铁渣温度越低,皮带运行速度越小,越能有效改善廊道热环境。送风温度为22℃,送风风速为2 m/s,铁渣温度为65℃,皮带速度为3.0 m/s为廊道热环境改善的最优组合方式。文章研究成果将为类似廊道内选择合适的通风方式、设备调控及系统优化提供指导。

In order to effectively improve the thermal environment of high temperature and high humidity corridor with mobile heat and humidity source,provide a comfortable working environment for workers.Based on an iron slag transfer corridor in Handan City,a physical model of coupled heat transfer between corridor air and belt surface is established to qualitatively analyze the improvement effect of corridor thermal environment under different air supply temperature,air supply speed,iron slag temperature and belt running speed,quantitative explore its influence degree on corridor thermal environment,and fitting all the factors associated with corridor temperature related experience.The results show that the thermal environment of corridor is affected by the temperature of air supply,the speed of air supply,the temperature of iron slag and the speed of belt.The lower the air supply temperature is,the higher the air speed is,the lower the iron slag temperature is,and the smaller the belt running speed is,the more effective it is to improve the thermal environment of the corridor.The optimal combination of air supply temperature 22℃,air speed 2 m/s,iron slag temperature 65℃and belt speed 3.0 m/s is the corridor thermal environment improvement.The research results of this paper will provide guidance for the selection of appropriate ventilation mode,equipment regulation and system optimization in similar corridors.