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id="z8dm4ne" class="twoCol"><div id="b9ypyfw" class="page-proshow clearfix"><p class="current"> 當(dāng)前位置:<a href="http://www.cdcfah.com/">首頁?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://www.cdcfah.com/cp/first-_jxjxysb/">機(jī)械及行業(yè)設(shè)備</a>?<a href="http://www.cdcfah.com/cp/second-jxjxysb_xyjzsbjk/">消音降噪設(shè)備</a>?<a href="http://www.cdcfah.com/cp/third-xyjzsbjk_qcxsqsy/">汽車消聲器</a>??？谙暺髋l(fā)多少錢抱誠守真佛山文質(zhì)通風(fēng)設(shè)備供應(yīng)</p><div id="7c4cjaw" class="leftbox clearfix"><h1>?？谙暺髋l(fā)多少錢抱誠守真佛山文質(zhì)通風(fēng)設(shè)備供應(yīng)</h1><div id="wdubqw3" class="proBig"><div id="tsz7vh9" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/wenzhitongfengshebei/637363172234052735/3569838.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="y78qxei" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/wenzhitongfengshebei/637363172234052735/3569838.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="v288kml" 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>?？谙暺髋l(fā)多少錢,消聲器</p><p><span>***更新：</span>2020-10-15 06:14:45</p><p><span id="click" >瀏覽次數(shù)：1次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="2eie92u" 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="qbtfear" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="eyfhax3" class="box"><p><p style="text-indent:25px">阻性式消聲器：主要是利用多孔吸聲材料來降低噪聲的。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。當(dāng)聲波進(jìn)入阻性消聲器時(shí)，一部分聲能在多孔材料的孔隙中摩擦而轉(zhuǎn)化成熱能耗散掉，使通過消聲器的聲波減弱。阻性消聲器就好象電學(xué)上的純電阻電路，吸聲材料類似于電阻。因此，人們就把這種消聲器稱為阻性消聲器。阻性消聲器對中高頻消聲效果好，?？谙暺髋l(fā)多少錢，?？谙暺髋l(fā)多少錢，海口消聲器批發(fā)多少錢、對低頻消聲效果較差。把阻性結(jié)構(gòu)和抗性結(jié)構(gòu)按照一定的方式組合起來，就構(gòu)成了阻抗復(fù)合式消聲器。蒸汽消聲器可滿足各種參數(shù)鍋爐向空排汽、安全閥排汽及鍋爐送風(fēng)機(jī)進(jìn)口的降噪消聲要求。?？谙暺髋l(fā)多少錢</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="海口消聲器批發(fā)多少錢,消聲器" src="https://tyunfile.71360.com/UploadFile/wenzhitongfengshebei/637363172234052735/3569838.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。?？谙暺髋l(fā)多少錢筒式消聲器一般由排氣管、連接螺套、消聲筒和筒芯等幾部分組成。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="?？谙暺髋l(fā)多少錢,消聲器" src="https://tyunfile.71360.com/UploadFile/wenzhitongfengshebei/637363172171914063/8857663.png"></div><p style="text-indent:25px">消聲器是指對于同時(shí)具有噪聲傳播的氣流管道，可以用附有吸聲襯里的管道及彎頭或利用截面積突然改變及其他聲阻抗不連續(xù)的管道等降噪器件，使管道內(nèi)噪聲得到衰減或反射回去。前者稱為阻性消聲器，后者稱為抗性消聲器，也有阻抗復(fù)合式的消聲器。種類，消聲器種類很多，但究其消聲機(jī)理，又可以把它分為六種主要的類型，即阻性消聲器、抗性消聲器、阻抗復(fù)合式消聲器、微穿孔板消聲器、小孔消聲器和有源消聲器。結(jié)構(gòu)：根據(jù)汽車底部的空間狀況，消聲器外罩可加工成瓦狀或卷成鍋狀。鍋狀消聲器的外罩是用圓形心棒將外罩材料成型并咬合或用焊接連接整體安裝，并將焊接的部件裝入接口。鍋狀消聲器由內(nèi)管、轉(zhuǎn)向彎管和中間底板組成，之后外部底板通過合槽或焊接與外罩相連。當(dāng)汽車底部空間狀況復(fù)雜，安裝鍋狀消聲器困難時(shí)則可采用深拉伸的瓦狀消聲器。它幾乎可做成任何的形式。轎車消聲器的總?cè)莘e為發(fā)動機(jī)排量的8~12倍。</p><p style="text-indent:25px">共振腔消聲器。共振腔消聲器消聲原理是利用聲波頻率與共振腔固有頻率一致時(shí)對聲能的衰減達(dá)到較大進(jìn)行消聲。與擴(kuò)張室消聲器相比，共振腔消聲器具有消聲頻帶較窄，在共振頻率附近消聲量較大的特點(diǎn)，適用于具有單峰值頻率、且峰值較突出的高噪聲場合。設(shè)計(jì)時(shí)要求共振腔消聲器的共振頻率與聲波的主頻率一致。干涉型消聲器。干涉型消聲器是利用支管長度比主管長度長，并且多出的長度正好是1/2聲波波長的奇數(shù)倍，這樣支管聲波與主管聲波在振幅上相等，而在相位上相差180°的奇數(shù)倍，從而達(dá)到相互干涉而抵消，來實(shí)現(xiàn)消聲的目的。干涉型消聲器適用于消減某保持不變的單一頻率的噪聲，對于寬頻帶噪聲，這種型式消聲器無效。??微穿孔消聲器耐高溫、耐高速氣流沖擊。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="?？谙暺髋l(fā)多少錢,消聲器" src="https://tyunfile.71360.com/UploadFile/wenzhitongfengshebei/637363172179628907/3966315.png"></div><p style="text-indent:25px">風(fēng)機(jī)消聲器分為：離心風(fēng)機(jī)消聲器、羅茨風(fēng)機(jī)消聲器、鼓風(fēng)機(jī)消聲器、軸流風(fēng)機(jī)消聲器。風(fēng)機(jī)消聲器主要用于降低各種風(fēng)機(jī)風(fēng)口、風(fēng)道和封閉式機(jī)房進(jìn)風(fēng)口的空氣動力性噪聲。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)。圓形結(jié)構(gòu)分用于風(fēng)機(jī)接管口為圓形,又分為A、B型兩種， A型兩端均為法蘭盤，直接串接于管道中(即管道消聲器)， B型一端為法蘭，另一端為直接大氣排空(可裝防雨風(fēng)帽)，*供設(shè)置在室外管道末端和封閉式機(jī)房進(jìn)風(fēng)口選用。由于風(fēng)盤出口風(fēng)速一般大于進(jìn)口，故風(fēng)量一定時(shí)，進(jìn)風(fēng)口面積要比出風(fēng)口的大。若進(jìn)出風(fēng)口裝反了，風(fēng)量會降低，但出風(fēng)溫度會升高。制熱效果差，可能風(fēng)盤選型有問題，更可能水流量出現(xiàn)問題，如過濾器堵塞、管道積氣，流經(jīng)盤管的水量少于額定量，都會導(dǎo)致制熱效果差。盤式消聲器的形狀類似圓盤，具有較小的長度。河池消聲器廠家哪家便宜</p><p style="text-indent:25px">消聲器可**支承，在運(yùn)行和停運(yùn)時(shí)可自由膨脹，保證排汽管道工作的安全可靠性。?？谙暺髋l(fā)多少錢</p><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”。海口消聲器批發(fā)多少錢</p><p style="text-indent:25px">佛山文質(zhì)通風(fēng)設(shè)備有限公司發(fā)展規(guī)模團(tuán)隊(duì)不斷壯大，現(xiàn)有一支專業(yè)技術(shù)團(tuán)隊(duì)，各種專業(yè)設(shè)備齊全。專業(yè)的團(tuán)隊(duì)大多數(shù)員工都有多年工作經(jīng)驗(yàn)，熟悉行業(yè)專業(yè)知識技能，致力于發(fā)展文質(zhì)的品牌。我公司擁有強(qiáng)大的技術(shù)實(shí)力，多年來一直專注于風(fēng)機(jī)、風(fēng)扇制造；制冷、空調(diào)設(shè)備制造；家用空氣調(diào)節(jié)器制造；安全、消防用金屬制品制造；管道和設(shè)備安裝；日用家電批發(fā)；日用家電零售；廚具衛(wèi)具及日用雜品批發(fā)；五金產(chǎn)品批發(fā)；五金零售；其他機(jī)械設(shè)備及電子產(chǎn)品批發(fā)；其他室內(nèi)裝飾材料零售；其他日用品零售；貿(mào)易代理；其他未列明批發(fā)業(yè)；其他未列明零售業(yè)。（依法須經(jīng)批準(zhǔn)的項(xiàng)目，經(jīng)相關(guān)部門批準(zhǔn)后方可開展經(jīng)營活動。）的發(fā)展和創(chuàng)新，打造高指標(biāo)產(chǎn)品和服務(wù)。自公司成立以來，一直秉承“以質(zhì)量求生存，以信譽(yù)求發(fā)展”的經(jīng)營理念，始終堅(jiān)持以客戶的需求和滿意為重點(diǎn)，為客戶提供良好的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)，從而使公司不斷發(fā)展壯大。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/1560641.html</p></div></div></div></div></div><div id="uyahgxj" class="page-right twoColRt"><div id="3dhoqcj" class="box01 margin10 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