基于多目标评价的回转窑工艺段直接蒸发冷却送风方式优化研究  

Multi-objective Evaluation of Optimization of Direct Evaporative Cooling air supply mode in rotary kiln process section

作　　者：李嘉诚 孙铁柱 翁磊超 Li Jiacheng;Sun Tiezhu;Wen Leichao(School of Urban Planning and Municipal Engineering Xi’an Polytechnic University,Xi’an,710048)

机构地区：[1]西安工程大学城市规划与市政工程学院,西安710048

出　　处：《制冷与空调(四川)》2025年第1期56-65,共10页Refrigeration and Air Conditioning

摘　　要：为了在回转窑工艺段合理布置直接蒸发冷却设备的送风口位置,基于fluent软件对回转窑的送风方式进行了模拟研究,并通过实验数据验证了该模型的可靠性。基于某实际工程数据,在送风量为8700m3/h和设备蒸发效率59%条件下,对采用上送风、中送风和下送风三种方式以及在每种送风方式下设置不同出风口数量进行了模拟分析。结果表明:上送风致使非工作区温度低于工作区温度,冷量没有得到合理的分配,工作区的平均温度范围为28.49℃~29.41℃。相比之下,中送风方式各项指标稳定,平均温度在27.72℃~28.78℃,而下送风方式直接作用于工作区有效地降低了工作区温度,平均温度为28.08℃~28.48℃。利用层次分析法得知,采用中送风方式时开4个出风口权重为4.9,综合性最佳;采用下送风开1个出风口权重为7.78,综合性最差,为回转窑工艺段的通风降温设计提供一定的参考。In order to configure direct evaporative cooling equipment in the rotary kiln process section,this paper simulates the air supply mode of rotary kiln based on fluent software,and verifies the reliability of the model through the experimental data.Based on the actual engineering data,under the condition of the air supply capacity of 8700m³/h and the evaporation efficiency of 59%,the three methods of upper air supply,middle air supply and lower air supply and the number of different air outlets in each air supply mode were analyzed.The results show that the temperature of the non-working area is lower than that of the working area,and the cold volume is not reasonably distributed,and the average temperature range of the working area is 28.49℃~29.41℃.In contrast,the indexes of the medium air supply mode are stable,with the average temperature of 27.72℃~28.78℃,while the lower air supply mode directly acts on the working area to effectively reduce the temperature of the working area,with the average temperature of 28.08℃~28.48℃.When the weight of four air outlet is 4.9,which is the best comprehensive and 7.78,the lowest comprehensive.The conclusion of this study provides an important reference and scientific basis for the ventilation and cooling design of the process section of rotary kiln.

关 键 词：蒸发冷却 送风方式 仿真模拟 层次分析法 

分 类 号：TU831.4[建筑科学—供热、供燃气、通风及空调工程]