基于CFD的局部通风降温设备参数影响研究

Research on the Influence of Local Ventilation and Cooling Equipment Parameters Based on CFD

针对宝鸡某发电厂空压机房夏季高温机组停机保护问题以及现有通风降温措施的不合理性,提出一种适用于该空压机厂房的新型局部降温通风设备。通过夏季对现场进行多次连续测试,并建立整个厂房的物理模型,以实际测得的数据为验证依据,得出模型可靠性。利用CFD软件模拟不同送风角度、送风速度、送风口到设备表面的距离对空压机降温效果的影响,通过对比分析,得出最佳设计方案。研究和结论,可以为今后局部通风降温技术和CFD理论模拟在厂房中的应用研究提供参考。

Aiming at the problem of the shutdown protection of high temperature units in summer in an air compressor room of a power plant in Baoji and the irrationality of the existing ventilation and cooling measures,a new local cooling and ventilation device suitable for the air compressor plant is proposed.In the summer,the site was tested continuously for many times,and the physical model of the entire plant was established.Based on the actual measured data,the model reliability was obtained.Using CFD software to simulate the effect of different air supply angles,air supply speeds,and the distance between the air supply port and the surface of the equipment on the cooling effect of the air compressor,and through comparative analysis,the best design plan was obtained.The research and conclusion of this paper can provide a reference for the future application research of local ventilation cooling technology and CFD theoretical simulation in factory buildings.