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本文针对一汽车焊接车间,采用PHOENICS软件,对模型A、模型B和模型C共3种通风方式下车间的速度场、温度场及污染物浓度场进行了数值模拟研究。模型A为不设空调系统的诱导通风方式,该方式由于无空调系统,车间内温度过高;模型B在模型A的基础上设置了空调系统,车间内的各参数基本达到了设计要求;模型C为局部通风方式,设有空调系统,该方式车间内的各参数也达到了设计要求,如果焊接地点稳定不变时,可采用此种通风方式。
In this paper, a PHOENICS software was used to simulate the velocity field, temperature field and pollutant concentration field in workshop under three ventilation modes of model A, model B and model C for a welding workshop of a car. Model A is an induction ventilation system without air-conditioning system. Because of the absence of air-conditioning system, the temperature in the workshop is too high. Model B has an air-conditioning system based on model A. The parameters in the workshop basically meet the design requirements. C for local ventilation, with air-conditioning system, the method of the workshop parameters also reached the design requirements, if the welding site stable, can be used for such ventilation.