吸油烟机侧挡板拢烟特性的PIV测量

doi:10.19784/j.cnki.issn1672-0172.2024.06.010

摘要/Abstract

摘要： 随着生活水平的提高,吸油烟机销售量逐年递增,而吸油烟机的拢烟效果是影响用户健康的直接因素,因此备受关注。侧挡板是吸油烟机主要部件之一,对吸油烟机的拢烟性能有十分重要的影响。采用粒子图像测速（PIV）方法对某顶吸式吸油烟机侧挡板附近三个截面流场进行了测量,研究了吸油烟机有无侧挡板和是否靠墙安装时挡板流场变化规律。结果表明,在侧挡板的作用下,吸油烟机内侧形成了稳定的大尺度旋涡结构,有助于吸油烟机对气流的捕获,吸风口风速较无挡板时有明显提升。此外,靠近墙壁安装吸油烟机时,其吸风口风速降低,挡板的“拢烟”效果减弱,存在油烟泄露的风险。

关键词: 吸油烟机, 旋涡, PIV, 热线风速仪

Abstract: With the improvement of living standard, the sales volume of range hood increases year by year, and the smoke collection effect of range hood is a direct factor affecting the health of users, so it attracts the attention of users. The particle image velocimetry (PIV) method was used to measure the flow field of three sections near the side baffle of a top suction range hood, and the variation of the baffle flow field was studied when the range hood was installed with or without the side baffle. The results show that a stable large-scale vortex structure is formed inside the range hood under the action of the side baffle, which is helpful for the range hood to capture the airflow, and the wind speed at the exhaust port is obviously higher than that without the baffle.In addition, when the range hood is installed close to the wall, the wind speed at the suction opening of the range hood is reduced, the "smoke collection" effect of the baffle is weakened, and there is a risk of oil smoke leakage.

Key words: Range hood, Vortex, PIV, Hot wire anemometer

中图分类号:

TM925
TB6

李港, 杜海, 卿山赛, 任勇, 岑振宙, 陈余恩. 吸油烟机侧挡板拢烟特性的PIV测量[J]. 家电科技, 2024, 0(6): 56-62.

LI Gang, DU Hai, QING Shangsai, REN Yong, CEN Zhenzhou, CHEN Yuen. PIV measurement of smoke guidance characteristics around the side baffle of a range hood[J]. Journal of Appliance Science & Technology, 2024, 0(6): 56-62.

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