- 學位論文
離心式風機舌板改善性能測試研究
Research and Testing of the Appearance of the tongue plate to improve performance for Centrifugal Fan
摘要
本文旨在研究降低風機噪音以及提升風機各種性能效益，本文實驗方法係利用改變兩種風機出口端形式（平面舌板以及Ｖ型舌板）來量測兩種形式下之噪音值以及風機送風風量、消耗之軸功率、運轉電流、靜壓。實驗結果顯示，平面舌板與V型舌板兩者之間的噪音值，在量測位置6、7下平面舌板之噪音值約低於V型舌板1~1.5dB(A)。風量測試方面，平面舌板與V型舌板兩者之間的風量值，在量測位置3、4下平面舌板風量多於V型舌板5到5.5%。軸功率測試方面，平面舌板與V型舌板兩者之間的軸功率值，在量測位置3、4下平面舌板多於V型舌板8%、5%。電流測試方面，平面舌板與V型舌板兩者之間的電流值，在量測位置3、4、5下平面舌板多於V型舌板1%、2.7%、2.6%；量測位置6、8下平面舌板少於V型舌板2.9%、2.3%。其靜壓測試部分，平面舌板在特定的量測模式下(3、4、8、9)下靜壓值比V型舌板分別高出11.1%、9%、4.3%以及3.7%。綜述以上實驗結果，在特定的量測點下，平面舌板較Ｖ型舌板有較佳的性能表現。
並列摘要
This paper presents a reduced fan noise method, with increased fan-benefit analysis of various performances. The experimental approach adopts changes in the outlet in the form of two fans (flat tongue and a V-Type tongue plate) in order to measure the noise under the two forms of value and volume of supply air fan, shaft power consumption, operating current, and static pressure. The results showed that the tongue plate and the V-plane tongue plate noise between the value of the measurement location of 6.7 in the tongue plate in the plane below the noise level is about V-tongue plate 1 ~ 1.5dB (A). Air flow rate testing showed that the flat plate and the V-Type tongue plate between the tongue plate V-Type flow rate value, the measurement location of 3.4 in the tongue plate in the plane was more than the V-Type flow rate tongue plate 5 to 5.5%. Shaft power testing of measurement model 3, and measurement model 4, showed that the tongue plate in the plane V-tongue plate was more than 8%, 5%. The measurement models 3 and 4 and 5 showed more than the V-Type plane tongue plate 1%, 2.7%, and 2.6%. The measurement models 6 and 8 showed that, the flat tongue plate is less than the V-tongue plate of 2.9% and 2.3%. Static pressure testing showed that the flat tongue plate in particular measurement models (3,4,8,9), the static value of V-tongue plate than the 11.1% higher, respectively, 9%, 4.3%, and 3.7%. The results summarized above suggest that, in the specific measurement points, when parallel to the tongue plate the V-tongue board has better performance.