【摘要】 船体外板喷涂施工中会产生挥发性有机化合物(VOCs)形成漆雾等有害物质，对人体健康和大气环境造成严重危害，需要及时将扩散漆雾粒子进行回收并提高该过程的效率，因此设计开发了一种组合式漆雾回收装置。针对目前常见的双喷嘴喷漆作业漆雾扩散工况，设计装置由双层隔离罩、真空管道和气幕发生器组成。对装置的作业过程使用计算流体力学方法进行计算仿真和漆雾回收效率评估。结果表明，所开发的组合式漆雾回收装置的效率在使用双层隔离罩和真空管道时能达到75%以上。在回收罩边界增加了气幕发生器，合适的风幕气流速度为5 m/s，将回收效率提高到90%以上。组合式回收装置显著控制了漆雾粒子的外溢，双层隔离罩阻隔了工作区域和真空回收区域，真空管道持续抽吸漆雾粒子，使回收罩内的漆雾污染物排放浓度降低，为后续的废气集中处理提供便利，有效保障了涂装作业人员的健康与周边环境的绿色安全。更多还原

【Abstract】 During the spraying construction of ship hull outer panels, volatile organic compounds(VOCs) are generated to form harmful substances such as paint mist, which poses a serious threat to human health and atmospheric environment. It is necessary to timely recover the diffused paint mist particles and improve the efficiency of the process. Therefore, a combined paint mist recovery device has been designed and developed. In response to the current common situation of paint mist diffusion in dual nozzle spray painting operations, a device is designed consisting of a double-layer isolation cover, a vacuum pipeline, and an air curtain generator. Computational fluid dynamics methods were used to simulate and evaluate the efficiency of paint mist recovery during the operation process of the device. The results indicate that the efficiency of the developed combined paint mist recovery device can reach over 75% when using double-layer isolation covers and vacuum pipelines. An air curtain generator has been added to the boundary of the recycling hood, with a suitable air curtain airflow velocity of 5m/s, increasing the recycling efficiency to over 90%. The combined recycling device significantly controls the overflow of paint mist particles. The double-layer isolation hood blocks the working area and the vacuum recycling area. The vacuum pipeline continuously sucks in paint mist particles, reducing the emission concentration of paint mist pollutants inside the recycling hood, providing convenience for subsequent centralized treatment of exhaust gas, and effectively ensuring the health of painting workers and the green safety of the surrounding environment.更多还原