窗式空调器贯流风机系统优化设计

Optimized design of window air conditioner through-flow fan system

窗式空调器室内侧大多采用离心风叶送风,风道结构导致目前的噪声普遍在60 dB以上。为了提升用户体验,新一代静音窗式空调室内侧多采用贯流风机系统。为了研究贯流风机系统对窗式空调器风量和噪声的影响,针对现有窗式空调器整机风量低、噪声大的问题,通过研究贯流风机系统提高风机系统性能,以提升风量、降低噪声,改善窗式空调器舒适性。通过优化整机风道进出口布局、流道阻力等,同时对贯流风叶的尺寸和叶型对整机系统匹配进行优化,以达到提高风量的目的。实验结果表明,合理的风道端部布局以及通过更改蜗舌加大风叶直径,窗式空调器风量提升明显。

Most of the indoor side of window air conditioners use centrifugal blades to supply air,and the air duct structure leads to the current noise of more than 60 dB.In order to improve the user experience,the new generation of silent window air conditioners mostly adopts cross-flow fan systems on the indoor side.In order to study the influence of the cross-flow fan system on the air volume and noise of the window air conditioner,in view of the problems of low air volume and high noise of the existing window air conditioner,the performance of the fan system is improved by studying the cross-flow fan system,so as to improve the air volume,reduce noise and improve the comfort of the window air conditioner.By optimizing the layout of the air duct inlet and outlet and the resistance of the runner,the size and blade shape of the through-flow blade are optimized to match the system of the whole machine to achieve the purpose of improving the air volume.The experimental results show that the reasonable air duct end layout and the change of the worm tongue to increase the diameter of the blade increase the air volume of the cabinet machine significantly.