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当前位置:电竞外围app > 散热风扇知识 > 电竞外围app » 大家为何要对风扇叶进行减噪呢

大家为何要对风扇叶进行减噪呢

文(wen)章出处:毅荣(rong)川(chuan)电(dian)子科技有限公(gong)司 人气:2284发表时间:2021-02-24

      节能减噪风(feng)扇(shan)(shan)原(yuan)理风(feng)扇(shan)(shan)按原(yuan)理可分离心(xin)式(shi)和轴流(liu)式(shi)两种.当离心(xin)式(shi)风(feng)扇(shan)(shan)旋转时(shi)(shi),所产(chan)生(sheng)的离心(xin)力(li)(li)将叶片(pian)间(jian)的空(kong)气(qi)向叶轮外缘甩(shuai)出(chu)(chu)去.因(yin)而,在风(feng)扇(shan)(shan)叶轮外缘出(chu)(chu)口处形成(cheng)压力(li)(li),气(qi)流(liu)在此发生(sheng)运动方向的改(gai)变(bian),与此同时(shi)(shi)在叶片(pian)间(jian)产(chan)生(sheng)较大涡流(liu),又(you)因(yin)风(feng)罩形状与风(feng)扇(shan)(shan)配合(he)不当,气(qi)流(liu)在外罩内形成(cheng)局部涡流(liu),因(yin)此,效率仅为20~30%,一般风(feng)耗约为电机容量。

      减噪风扇叶(ye)(ye)包括叶(ye)(ye)片(pian)(pian)(pian)(pian)(pian)体,叶(ye)(ye)片(pian)(pian)(pian)(pian)(pian)体上没有与转轴连(lian)接的连(lian)接套(tao)筒,叶(ye)(ye)片(pian)(pian)(pian)(pian)(pian)包括不同长度(du)的短(duan)叶(ye)(ye)片(pian)(pian)(pian)(pian)(pian)和长叶(ye)(ye)片(pian)(pian)(pian)(pian)(pian),短(duan)叶(ye)(ye)片(pian)(pian)(pian)(pian)(pian)和长叶(ye)(ye)片(pian)(pian)(pian)(pian)(pian)的长度(du)比(bi)为1:5致1:4,短(duan)叶(ye)(ye)片(pian)(pian)(pian)(pian)(pian)和长叶(ye)(ye)片(pian)(pian)(pian)(pian)(pian)均为弧形叶(ye)(ye)片(pian)(pian)(pian)(pian)(pian)。

       短(duan)叶(ye)片(pian)和(he)长(zhang)叶(ye)片(pian)间隔均匀,风扇(shan)体(ti)(ti)上(shang)(shang)没有(you)叶(ye)片(pian)固(gu)定杆,固(gu)定杆的一(yi)端固(gu)定在连接套上(shang)(shang),另一(yi)端固(gu)定在风机叶(ye)片(pian)体(ti)(ti)的圆周(zhou)上(shang)(shang),有(you)凹槽或通孔,短(duan)叶(ye)片(pian)和(he)长(zhang)叶(ye)片(pian)的长(zhang)度比为5:23。

  风(feng)(feng)机(ji)(ji)叶(ye)片(pian)采用长叶(ye)片(pian)和(he)短叶(ye)片(pian)布置,使相同尺寸、相同转速的风(feng)(feng)机(ji)(ji)叶(ye)片(pian)风(feng)(feng)量大、噪音低,固定杆的安(an)装增强了(le)风(feng)(feng)机(ji)(ji)叶(ye)片(pian),机(ji)(ji)身的整(zheng)体(ti)强度可以(yi)减小风(feng)(feng)机(ji)(ji)叶(ye)片(pian)本体(ti)的偏心,连接套上(shang)的通孔(kong)的设置可以(yi)整(zheng)体(ti)减轻风(feng)(feng)机(ji)(ji)叶(ye)片(pian)的重量,节(jie)省电力,制(zhi)造方便。

  风(feng)扇叶(ye)(ye)(ye)采(cai)用长、短(duan)排列,以降底噪音(yin)(yin),风(feng)叶(ye)(ye)(ye)采(cai)用弧形风(feng)叶(ye)(ye)(ye),增加风(feng)量,叶(ye)(ye)(ye)片采(cai)用塑性风(feng)扇叶(ye)(ye)(ye)片,增加风(feng)量,降底噪音(yin)(yin),以上(shang)所述希望(wang)可以给大家(jia)带(dai)来(lai)帮(bang)助(zhu)。


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