船舶空调系统集中通风口雨水分离器除水效果仿真优化

Simulation and Optimization of the Water Removal Effect of the Rainwater Separator in the Centralized Vent of the Air Conditioning System on the Ship

研究极端环境对船舶空调系统的影响以及应对措施。采用数值模拟的手段,利用欧拉-拉格朗日方法分析气液两相流在带钩波纹板雨水分离器中的分离过程,并研究不同的风速、雨滴粒径、通道板间距对雨水分离器除水效果的影响,结果表明,风速、通道板间距对除水率影响较大,雨滴粒径为0.5 mm~2.5 mm时对除水的影响较小。根据此结果,综合考虑雨水分离器的除水率及经济环保等因素,提出应对极端强降雨环境的措施,即安装单通道板距32 mm的雨水分离器。

The impact of extreme environments on the marine air-conditioning system and corresponding countermeasures are mainly studied.By means of numerical simulation,the separation process of gas-liquid two-phase flow in the rainwater separator with hooked corrugated plate is analyzed by the Euler-Lagrangian method.The effects of different wind speed,raindrop particle size and channel plate spacing on the water removal effect of rainwater separator are studied.The results show that the wind speed and channel plate spacing have a great influence on the water removal rate,while the raindrop particle size of 0.5 mm~2.5 mm has a small influence on the water removal rate.According to the research results and comprehensively considering the factors such as water removal rate of the rainwater separator,economy and environmental protection,the measures to deal with extreme heavy rainfall environment are put forward,that is,installing a rainwater separator with a single channel plate distance of 32 mm.