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href="http://m.cdcfah.com/cp/third-xyjzsbjk_qcxsqsy/">汽車消聲器</a>?防城港消聲器廠家哪家便宜誠信經(jīng)營佛山文質(zhì)通風(fēng)設(shè)備供應(yīng)</p><div id="k8y7b82" class="leftbox clearfix"><h1>防城港消聲器廠家哪家便宜誠信經(jīng)營佛山文質(zhì)通風(fēng)設(shè)備供應(yīng)</h1><div id="qjqnzg2" class="proBig"><div id="x5ico74" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/wenzhitongfengshebei/637363172190869141/9583475.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="kjvhjg3" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/wenzhitongfengshebei/637363172190869141/9583475.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="knkmegx" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價(jià)格要求：</span>面議</p><p><span>所在地：</span>廣東省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>防城港消聲器廠家哪家便宜,消聲器</p><p><span>***更新：</span>2020-10-15 12:12:42</p><p><span id="click" >瀏覽次數(shù)：2次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="p8zroah" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">佛山文質(zhì)通風(fēng)設(shè)備有限公司</a></p><p><span>聯(lián)系人：</span>馮達(dá)斌</p><p><span>郵箱: </span>751633122@qq.com</p><p><span>電話: </span>13679725711</p><p><span>傳真: </span>0757_</p><p><span>網(wǎng)址: </span>http://fswztf.1688.com</p><p><span>手機(jī): </span>0757-85965668</p><p><span>地址: </span>大瀝鎮(zhèn)黃岐六聯(lián)鄉(xiāng)高力中村倉庫(自編)3號(住所申報(bào))</p><p>[當(dāng)前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="fyvhtk3" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="nroa8am" class="box"><p><p style="text-indent:25px">消聲器的機(jī)殼或管道輻射的噪聲可能傳入消聲器后端，致使消聲效果下降，必要時(shí)，防城港消聲器廠家哪家便宜，可在消聲器外殼或部分管道上做隔聲處理。消聲器法蘭和風(fēng)機(jī)法蘭連接處應(yīng)加彈性墊并注意密封，以免漏聲、漏氣，同時(shí)也能減少剛性連接的振動傳聲。在通風(fēng)空調(diào)系統(tǒng)中，消聲器應(yīng)盡量安裝于靠近使用房間的地方。消聲器片間流速應(yīng)適當(dāng)。風(fēng)機(jī)消聲器片間平均流速可認(rèn)為與風(fēng)機(jī)管道流速相等，防城港消聲器廠家哪家便宜。用于民用建筑，消聲器片間流速通常取3-12m/s；工業(yè)方面，防城港消聲器廠家哪家便宜，消聲器片間流速通常取12-25m/s，較大不得超過30m/s。流速不同，消聲器護(hù)面結(jié)構(gòu)應(yīng)不同。平均流速小于10m/s時(shí)，多孔吸聲材料的護(hù)面可用防火布或金屬絲網(wǎng)罩起來；平均流速為10-23m/s時(shí)，可選用金屬穿孔板護(hù)面；當(dāng)平均流速為23-45m/s時(shí)，可選用玻璃絲布和金屬穿孔板護(hù)面；當(dāng)平均流速為45-120m/s時(shí)，可采用雙層金屬穿孔板和鋼絲棉護(hù)面，穿孔率應(yīng)大于20%。折板式消聲器是在片式消聲器的基礎(chǔ)上，增加氣流通道的長度和彎曲。防城港消聲器廠家哪家便宜</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="防城港消聲器廠家哪家便宜,消聲器" src="https://tyunfile.71360.com/UploadFile/wenzhitongfengshebei/637363172190869141/9583475.png"></div><p style="text-indent:25px">消聲器的消聲原理是利用腔與管的適當(dāng)組合，來達(dá)到兩種作用來消聲的：一是利用管道截面突變(即聲抗的變化)使沿管道傳播的聲波向聲源方向反射回去，從而使聲能反射回原處；二是利用幾個(gè)界面的反射，使原來個(gè)向前傳播的聲波又回到原點(diǎn)，并再次折回向前傳播，該點(diǎn)與尚未被反射的第二個(gè)向前傳播的聲波匯合，而且兩者在振幅上相等，在相位上差180度的奇數(shù)倍，從而互相干涉而抵消。風(fēng)機(jī)式消聲器主要適用于降低羅茨系列、軸流系列風(fēng)機(jī)的進(jìn)排氣噪聲，也可以用于對排氣管道及其它高壓風(fēng)機(jī)的降噪，消聲量15-30dB，壓力損失少于500Pa。防城港消聲器廠家哪家便宜風(fēng)機(jī)消聲器根據(jù)風(fēng)機(jī)進(jìn)出口結(jié)構(gòu)不同，分為圓形結(jié)構(gòu)和矩形結(jié)構(gòu)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="防城港消聲器廠家哪家便宜,消聲器" src="https://tyunfile.71360.com/UploadFile/wenzhitongfengshebei/637363172234052735/3569838.png"></div><p style="text-indent:25px">直管消聲器消聲量的計(jì)算:直管式消聲器消聲量主要與通道形式、長度和吸聲材料的性能有關(guān)。消聲量的計(jì)算公式為：其中，Φ是消聲系數(shù)，即每米消聲量(dB/m)；P是消聲器通道截面周長(m)；S是消聲器通道截面積(m2)。消聲管道內(nèi)吸聲系數(shù)越大，消聲系數(shù)Φ越大，消聲量越高。增加長度，或增加通道周長與截面積的比P/S，消聲量越大。同樣周長，圓形截面的周長與截面積的比，要比扁狀的矩形小很多，因此，圓形截面的直管式消聲器消聲性能小。當(dāng)直管消聲器截面較大時(shí)，如徑尺寸大于30cm的圓管或矩形管，高頻聲波成上束狀，將直接穿過管道，而與管壁的吸聲材料不發(fā)生作用，消聲性能變差，這種高頻性能下降的現(xiàn)象被稱為“高頻失效”。并將高頻消聲量明顯下降的頻率稱為“上限失效頻率”。</p><p style="text-indent:25px">微穿孔板理論在抗噴阻消聲器設(shè)計(jì)中的應(yīng)用，利用微穿孔板聲學(xué)結(jié)構(gòu)設(shè)計(jì)制造的消聲器種類很多，主要型為抗噴阻型消聲器。該型式消聲器是用不銹鋼穿孔薄板制成，因該九臺消聲器是用于石化單位，空氣腐蝕性比較大，故穿孔板后的空氣層內(nèi)填裝的吸聲材料為耐腐蝕金屬軟絲布。利用吸聲材料的阻性吸聲原理，進(jìn)一步達(dá)到降噪消聲的作用，其吸聲系數(shù)高，吸收頻帶寬，壓力損失小，氣流再生噪聲低，且易于控制。為獲得寬頻帶高吸收效果，一般用三級微穿孔板結(jié)構(gòu)。微穿孔板與外殼體之間以及微穿板之間的空腔尺寸大小按需要吸收的頻帶不同而異，低頻腔大（150～200mm）,中頻小些(80～120mm），高頻更小些（30～50mm），雙層結(jié)構(gòu)的前腔深度一般應(yīng)小于后腔，前后腔深度之比不大于1：3，前部接近氣流的一層微穿孔板穿孔率應(yīng)高于后層，為減小軸向聲傳播的影響，可在微穿孔板消聲器的空腔內(nèi)每隔500mm左右加一塊橫向隔板。消聲器一般應(yīng)設(shè)于空調(diào)機(jī)房和空調(diào)房間之間考近空調(diào)機(jī)房，且氣流穩(wěn)定的直管段上。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="防城港消聲器廠家哪家便宜,消聲器" src="https://tyunfile.71360.com/UploadFile/wenzhitongfengshebei/637363172179628907/3966315.png"></div><p style="text-indent:25px">衡量消聲器的好壞，主要考慮以下三個(gè)方面：消聲器的消聲性能；（消聲量和頻譜特性）；消聲器的空氣動力性能；（壓力損失等）；消聲器的結(jié)構(gòu)性能。（尺寸、價(jià)格、壽命等）；消聲器的消聲頻率特性?？箛娮栊拖暺鲗Ω黝l噪聲效果優(yōu)越。消聲器的適用風(fēng)速一般為6-8m/s，較高不宜超過12m/s，同時(shí)注意消聲器的壓力損失。注意消聲器的凈通道截面積，風(fēng)管和消聲器連接時(shí)，必要時(shí)（風(fēng)速有限制時(shí)）需作放大處理。消聲器等消聲設(shè)備安裝，須有**的承重吊桿或底座與聲源設(shè)備須通過軟接頭連接。當(dāng)兩個(gè)消聲彎頭串聯(lián)使用時(shí)，兩個(gè)彎頭的連接間距應(yīng)大于彎頭截面對角線長度的2.5倍。對于高溫、高濕、有油霧、水氣的環(huán)境系統(tǒng)一般選用微孔結(jié)構(gòu)消聲設(shè)備，對于有潔凈要求的諸如手術(shù)室、錄音室、潔凈廠房等環(huán)境系統(tǒng)，應(yīng)采用微孔結(jié)構(gòu)消聲設(shè)備。相鄰用房管路串通時(shí)，注意室內(nèi)噪聲通過管路相互影響，必要時(shí)風(fēng)口作消聲處理。把吸聲材料固定在氣流通道的內(nèi)壁上或按照一定方式在管道中排列，就構(gòu)成了阻性消聲器。廣東消聲器質(zhì)量哪家好</p><p style="text-indent:25px">抗噴阻型消聲器信息吸聲系數(shù)高，吸收頻帶寬，壓力損失小，氣流再生噪聲低，且易于控制。防城港消聲器廠家哪家便宜</p><p style="text-indent:25px">風(fēng)機(jī)類消聲器選購，用戶應(yīng)提交風(fēng)機(jī)類型(分鼓風(fēng)機(jī)、通風(fēng)機(jī)、羅茨風(fēng)機(jī)、軸流風(fēng)機(jī)、空壓機(jī)等)，并提供風(fēng)機(jī)進(jìn)出口尺寸及風(fēng)量，一般風(fēng)機(jī)消聲器都是安裝在出口，風(fēng)機(jī)消聲應(yīng)綜合治理，即消聲器與隔聲室同時(shí)安裝。風(fēng)機(jī)消聲器外殼體為碳鋼，內(nèi)部材質(zhì)分鋁板和不銹鋼兩種，用戶可按成本情況選定。、鍋爐蒸汽排放類消聲器選購，用戶應(yīng)提供每小時(shí)的排放量，排汽出口尺寸，排汽溫度及壓力即可。排汽消聲器一般選購抗噴阻復(fù)合型消聲器，該消聲器一般外殼體為碳鋼，接管及內(nèi)部材質(zhì)為不銹鋼，具有消聲頻帶寬、使用范圍廣、消聲量大、耐高溫高壓、不怕水汽及油霧等優(yōu)點(diǎn)。也可使用小孔噴注型消聲器，一般為全不銹鋼制造。防城港消聲器廠家哪家便宜</p><p style="text-indent:25px">佛山文質(zhì)通風(fēng)設(shè)備有限公司致力于機(jī)械及行業(yè)設(shè)備，是一家生產(chǎn)型公司。公司業(yè)務(wù)涵蓋3cf消防認(rèn)證防火閥，鋁合金空調(diào)出風(fēng)口，通風(fēng)管道消聲器，消防風(fēng)機(jī)等，價(jià)格合理，品質(zhì)有保證。公司注重以質(zhì)量為中心，以服務(wù)為理念，秉持誠信為本的理念，打造機(jī)械及行業(yè)設(shè)備良好品牌。文質(zhì)通風(fēng)立足于全國市場，依托強(qiáng)大的研發(fā)實(shí)力，融合前沿的技術(shù)理念，飛快響應(yīng)客戶的變化需求。</p></p><br /><p>文章來源地址: http://m.cdcfah.com/cp/1566197.html</p></div></div></div></div></div><div id="3ztprdp" class="page-right twoColRt"><div id="ic3hjqn" 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