锅炉冷风道的流场仿真及道体结构优化研究

Flow Simulation and Structure Optimization of Cold Air Ducts

由于锅炉冷风道的道体结构设计不当,造成高能湍流脉动气体在风道内流速分布不均,产生大范围回流的漩涡扰动,导致道体振动。通过流场仿真研究,提出在风道内布置"井"字隔板装置,通过仿真研究,加装"井"字隔板后的风道内气体流速分布均匀程度得到较大改善,认为该方案如在实际工程中实施,可以较好地改善风道内气流分布均匀性和消除道体振动的问题。

Due to the improper structure design of the air ducts of the boiler, the flow velocity distribution of the high energy turbulent gas in the air duct is uneven, resulting in a large range of vortex disturbance and duct vibration. Through numerical simulation, it is put forward to set the ＂ well＂ shape partition device in the air duct, then the gas velocity distribution uniformity is greatly improved, the implementation of this scheme in practical engineering can improve air flow distribution uniformity the air ducts and eliminate duct vibration problems.