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n_contact"> <h3>聯(lián)系我們</h3> <div id="jlrjvtnppp" class="content"><p><strong>重慶陽正環(huán)?？萍脊煞萦邢薰?/strong></p><p>總機：023-67678916 </p><p>電話：189-9622-6296（王）</p><p>　　 185-2317-7702（胡）</p><p>網址：www.28fashion.com</p><p>地址：渝中區(qū)重慶總部城C1幢3樓</p></div> </div> </div> <div id="jlrjvtnppp" class="right"> <div id="jlrjvtnppp" class="sitemp clearfix"> <h2> 風機噪聲來源及處理方案介紹 </h2> <div id="jlrjvtnppp" class="site">您的當前位置： <a href="http://www.28fashion.com/">首頁</a> >> <a href="http://www.28fashion.com/news/">新聞資訊</a> >> <a href="http://www.28fashion.com/news/company/">公司動態(tài)</a> </div> </div> <div id="jlrjvtnppp" class="content">  <div id="jlrjvtnppp" class="news_detail"> <h1 class="title">風機噪聲來源及處理方案介紹</h1> <div id="jlrjvtnppp" class="info_title clearfix"> <h3 class="title_bar"> 發(fā)布日期：<span>2018-10-26 14:41</span> 來源：<span>http://www.28fashion.com</span> 點擊：<span><script src="http://www.28fashion.com/data/include/newshits.php?id=582"></script></span> </h3> <div id="jlrjvtnppp" class="share">  <div id="jlrjvtnppp" class="bdsharebuttonbox"> <a href="#" class="bds_more" data-cmd="more"></a> <a href="#" class="bds_qzone" data-cmd="qzone"></a> <a href="#" class="bds_tsina" data-cmd="tsina"></a> <a href="#" class="bds_tqq" data-cmd="tqq"></a> <a href="#" class="bds_renren" data-cmd="renren"></a> <a href="#" class="bds_weixin" data-cmd="weixin"></a> </div> <script> window._bd_share_config={"common":{"bdSnsKey":{},"bdText":"","bdMini":"2","bdPic":"","bdStyle":"0","bdSize":"16"},"share":{},"image":{"viewList":["qzone","tsina","tqq","renren","weixin"],"viewText":"分享到：","viewSize":"16"},"selectShare":{"bdContainerClass":null,"bdSelectMiniList":["qzone","tsina","tqq","renren","weixin"]}};with(document)0[(getElementsByTagName('head')[0]||body).appendChild(createElement('script')).src='http://bdimg.share.baidu.com/static/api/js/share.js?v=89860593.js?cdnversion='+~(-new Date()/36e5)]; </script>  </div> </div> <div id="jlrjvtnppp" class="content"><p><br/></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;"> <a href='http://www.28fashion.com/' target='_blank' class='key_tag'><font color=#136ec2><strong>重慶噪聲治理</strong></font></a>公司介紹到風機不光噪聲強度很高，并且還具有雜亂而連續(xù)的頻率成分。為了定量地描繪它的噪聲能量在整個聲頻范圍內的分布狀況，在噪聲測量中常選用倍頻程濾波器按63赫茲到800赫茲的八個倍頻程頻帶對噪聲進行頻譜分析檢驗，以獲得聲源的噪聲頻譜特性曲線，即倍頻程聲壓級現(xiàn)頻率的聯(lián)絡曲線。風機的噪聲強度及頻譜特性除了與風機作業(yè)靜壓的大小有關外，還與風機的流量，轉速有很大的聯(lián)絡。如跟著流量的增大，噪聲也相應升高，而當轉速前進一倍時，風機噪聲可增大5~10分貝左右，尤其以中高頻噪聲的增大更為明顯。</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;"> 風機噪音處理方法：風機降噪除考慮風口噪聲外，根據(jù)現(xiàn)場狀況，風機的機體噪聲和振蕩的固體聲傳聲也應予以重視。因為軸流風機作業(yè)時宣布很大的噪聲，并且風機噪聲還跟著風量和風壓的增大而前進。一般處理風機噪聲問題的方法有以下幾種：</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;"> 榜首、機殼及電機的噪聲可以通過加裝<a href='http://www.28fashion.com/product/147.html' target='_blank' class='key_tag'><font color=#136ec2><strong>隔聲罩</strong></font></a>來處理，將風機置于獨立的風機隔聲間內，在風機間內進行吸聲、隔聲處理。</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;"> 第二、在風機排風口外設備消聲器，內置消聲插片，使噪聲在通過特別結構的消聲器時削減。消聲器是下降空氣動力設備進、排氣口輻射或沿管傳遞噪聲的有用方法。</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;"> 第三、地面層外百葉窗盡可能使用消聲百葉。</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;"> 第四、風機吊掛選用阻尼彈簧吊頂減振器。</span></p><p style="text-align:center"><img src="/data/upload/image/20160429/1461894170702880.jpg" alt="重慶噪聲治理公司" width="322" height="414" style="width: 322px; height: 414px;" border="0" vspace="0" title="重慶噪聲治理公司"/></p><p><br/></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;"> 風機噪聲包含機械、氣流等多種噪聲管理，選用消聲、隔聲、吸聲等綜合管理措施。因為管道氣流噪聲是主要的噪聲源，因而增設管道消聲器是極為必要的。</span></p><p><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;"> 對需求降噪治理的風管表面，按敷設保溫材料的技術敷設吸聲材料(離心玻璃棉板和巖棉既是吸聲材料又是保溫材料)，由內向外依次是：一層厚度50mm容重32 kg/m3的離心玻璃棉板，一層厚度50mm容重100kg/m3的巖棉，用鐵絲網包覆后，再用一層厚度30mm的JNH砂漿類隔聲層抹面，較外層選用彩鋼板裝修，完成后外觀與全體外觀協(xié)調一致。施工時還考慮到維修時期風機機體的上蓋翻開、有關人孔門敞開的需求。</span></p><p><br/></p></div> <h3 class="tag">相關標簽：<a 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