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如何用技术控制风机噪声

发布时间:2017-05-16  浏览:次  作者:

  RUHEYONGJISHUKONGZHIFENGJIZAOSHENG

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  SHIZHONG:

  B-----YEPIANSHU

  N-----TONGFENGJIDEZHUANSHU,ZHUAN/FEN

  n-----XIEYINXUSHU:n=1(JIPIN),n=2(DIERXIEYIN)

  FENGJIZAOSHENGDESHENGJI,BUJINYUQIFENGJIDEJIEGOUXINGSHIYOUGUAN,ERQIEHAITONGQIGONGZUOZHUANGTAI(YOUQUANYAHEFENGLIANGJUEDING)YOUGUAN。BUTONGXILIE、BUTONGXINGHAODEFENGJI,QISHENGJISHIBUYIYANGDE。TONGYIFENGJI,ZAIBUTONGGONGKUANGXIA,QISHENGJIYESHIBUTONGDE。FENGJIGONGZUOZAIZUIGAOXIAOLVDIANSHI,SHENGJIWANGWANGQULIANGDIZHI。

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  YIBANLAISHUO,QIANXIANGYEPIANLIXINFENGJI,QIBIASHENGJIDIYU2dBA;HOUXIANGBANXINGYEPIANLIXINTONGFENGJI,DIYU30dBAJIYIXINGYEPIANLIXINFENGJI,DIYU25dBA;ZHOULIUTONGFENGJI,DIYU38bBA。ZAIBUTONGGONGKUANGXIA,TONGFENGJIZAOSHENGDESHENGJIYOUXIASHIQUEDING:

  LA=LSA+10LgQP dBA

  SHIZHONG:

  La----FENGJIJINQIKOU(HUOCHUQIKOU)DEASHENGJI,dBA;

  Lsa----FENGJIJINQIKOU(HUOCHUQIKOU)DEBIASHENGJI,dBA;

  Q----FENGLIANG,MI3/FEN;

  P----FENGJIQUANYA,HAOMISHUIZHU.

  KONGZHIFENGJIZAOSHENGDECHANGYONGFANGFASHIZAIFENGJIDEJIN、CHUKOUCHUANZHUANGZUXINGXIAOSHENGQI。DUIYUYOUGENGGAOJIANGZAOYAOQIUDECHANGHE,KEYICAIYONGXIAOSHENGGESHENGXIANG,BINGZAIJIZUYUDIJIZHIJIANANZHIJIANZHENQI。CAIQUSHANGSHUFANGFA,YIBANKEHUODEMINGXIANDEJIANGZAOXIAOGUO。

  GUONEIXIANYIYOUXUDUOZAOSHENGKONGZHISHEBEICHANG,KETIGONGGELEIFENGJIDEXIAOSHENGZAOQI、XIAOSHENGGESHENGXIANGJIJIANZHENQI。FENGJIDEZAOSHENGWENTI,CONGJISHUSHANGLAIJIANG,ZAIWOGUOJIBENSHANGYIKEDEDAOYOUXIAODEKONGZHI,ERQIEDIZAOSHENGFENGJIYEYIKAISHICHUXIAN。

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