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target="_blank">曝氣風機</a></strong>采用葉輪直接安裝在電機上，完全無接觸壓縮，即使在大的壓差下，也能保證機器的大可靠性。采用寬電壓雙頻（50/60HZ）電機，防護等級IP54（F）。軸承外置設計，使得風機能夠承受高溫度，并提高風機的使用壽命和可靠性。完全無油、無水壓縮。為石油、煤氣及沼氣特殊設備配備高等級的安全防護風機。<div>　　在實際應用過程中，由于風機噪聲的影響，對人們的工作環境影響頗深。因此人們更加關注風機的噪聲，展開了關于風機噪聲的防治方法研究：</div><div>　　對于現場使用的風機，可根據風扇的小噪音、現場的前提和降噪要求選擇不同的抑制方法。一般可歸納為安裝消聲器、安裝隔音罩、換新風扇或管道的方法。關于曝氣風機的機械噪聲，首先要提高裝配精度，更換舊軸承或用滑動軸承代替滾動軸承，使轉子處于動平衡狀態。用彈性聯軸器連接電機和鼓風機，加強設備的維護，平穩加油，擰緊連接螺栓，更換損壞零件等。</div><div>　　控制噪聲的方法是減少噪聲源的噪聲輻射，即減小沖力。由于風機運行過程中消聲器的壓力損失，造成了能量損失，這對于節能來說是非常不利的。因此改善風機的氣動設計、風機的理想選擇、合適的裝置和操作方法是降低曝氣風機噪聲的基本途徑?，F今，通過改進風機的結構來降低其噪聲的相關報道很多，并取得了不錯的效果。</div><div>　　將葉輪變成扭曲葉輪，從風扇噪聲的機理分析可以看出，當任務輪扭曲時，葉片出口區域的氣流有很大的不均勻性，這種不均勻的氣流周期性地影響周圍介質，導致壓力波動形成噪聲。而且氣流的異質性越強，噪音越大。將風機轉子的直葉輪改為扭曲葉輪，可以改善氣流的不均勻性，從而降低噪音。</div> </div> <div class="art-next"> <dl class="shangxia"> <dd>上一篇：<a href="/News-529578.html">污水曝氣風機的底層微孔曝氣增氧技術優勢</a> </dd> <dd>下一篇：<a href="/News-537641.html">對透浦式風機的安裝養護我們要做些什么？</a> </dd> </dl> </div> </div> </div> </div> </div> </div> <div id="clear"></div>  <div 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