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風機消音房
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消聲(sheng)(sheng)器是指(zhi)對于同時(shi)具有噪(zao)聲(sheng)(sheng)傳播的氣流管道(dao)(dao),可以(yi)用附有吸聲(sheng)(sheng)襯里的管道(dao)(dao)及(ji)彎(wan)頭或(huo)(huo)利用截(jie)面積突然改變及(ji)其他聲(sheng)(sheng)阻抗不連(lian)續(xu)的管道(dao)(dao)等降噪(zao)器件,使管道(dao)(dao)內噪(zao)聲(sheng)(sheng)得到(dao)衰減或(huo)(huo)反射回去。前(qian)者(zhe)稱為(wei)阻性消聲(sheng)(sheng)器，后者(zhe)稱為(wei)抗性消聲(sheng)(sheng)器，也有阻抗復合式(shi)的消聲(sheng)(sheng) |
