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href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://www.cdcfah.com/cp/first-_jydq/">家用電器</a>?<a href="http://www.cdcfah.com/cp/second-jydq_dfs/">電風(fēng)扇</a>?<a href="http://www.cdcfah.com/cp/third-dfs_qtdfs/">其他電風(fēng)扇</a>?寧波50w電梯風(fēng)扇歡迎來(lái)電寧波奉化光亞計(jì)數(shù)器供應(yīng)</p><div id="mqszbif" class="leftbox clearfix"><h1>寧波50w電梯風(fēng)扇歡迎來(lái)電寧波奉化光亞計(jì)數(shù)器供應(yīng)</h1><div id="3gaifw3" class="proBig"><div id="gfholh9" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/18867638280/637273868800322265/2992686.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="wa3fek4" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/18867638280/637273868800322265/2992686.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="ziahe2t" 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>浙江省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>寧波50w電梯風(fēng)扇</p><p><span>***更新：</span>2020-06-24 08:26:42</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="dxz7taj" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">寧波奉化光亞計(jì)數(shù)器制造有限公司</a></p><p><span>聯(lián)系人：</span>皇甫益敏</p><p><span>郵箱: </span>2218920377@qq.com</p><p><span>電話(huà): </span>18867638280</p><p><span>傳真: </span>0574_</p><p><span>網(wǎng)址: </span></p><p><span>手機(jī): </span>0574-88955915</p><p><span>地址: </span>東郊開(kāi)發(fā)區(qū)圓峰路79號(hào)</p><p>[當(dāng)前離線(xiàn)] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="v3gwolk" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="g4oqy8t" class="box"><p><p> 扇葉: </p> <p> 常見(jiàn)的風(fēng)扇扇葉截面曲線(xiàn)，寧波50w電梯風(fēng)扇,一般基于Joukowski(茹科夫斯基,俄國(guó)有名的空氣動(dòng)力學(xué)家,當(dāng)代航空科學(xué)的開(kāi)拓者,提出了茹科夫斯基函數(shù),奠定了機(jī)翼空氣動(dòng)力計(jì)算的理論基礎(chǔ))機(jī)翼截面曲線(xiàn)設(shè)計(jì),再按照設(shè)計(jì)需要,根據(jù)葉片根部及端部與旋轉(zhuǎn)軸之夾角、根部及端部寬度等數(shù)據(jù)進(jìn)行旋轉(zhuǎn)堆疊,形成三維扇葉曲面,并進(jìn)行曲線(xiàn)擬合,終完成整個(gè)扇葉模型設(shè)計(jì)。 </p> <p> 扇葉的性能受到眾多參數(shù)的影響,如層疊高度、葉片曲率、葉片傾角、葉片間距、葉片厚度、葉片數(shù)目、葉片沖角、葉端間隙、葉片寬度、主軸直徑等等,且各參數(shù)間互相制約,關(guān)系復(fù)雜。不斷的調(diào)整各項(xiàng)參數(shù),尋找適合目標(biāo)工作要求的組合,便是進(jìn)行扇葉設(shè)計(jì)的研究人員所從事的工作，寧波50w電梯風(fēng)扇，寧波50w電梯風(fēng)扇。若要將這些參數(shù)全部解釋清楚并加以分析,足以寫(xiě)出幾篇博士論文了,但本文只是淺要分析風(fēng)冷散熱器的相關(guān)技術(shù),實(shí)無(wú)此必要,筆者也尚無(wú)此能力。 </p> <p> <br /> </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="寧波50w電梯風(fēng)扇" src="https://tyunfile.71360.com/UploadFile/18867638280/637273868800322265/2992686.png"></div><p> 風(fēng)扇消除噪音 </p> <p> 折疊一、潤(rùn)滑軸承 </p> <p> 風(fēng)扇轉(zhuǎn)運(yùn)主要的部件就是軸承，時(shí)間長(zhǎng)了缺乏潤(rùn)滑油，這樣高速轉(zhuǎn)動(dòng)時(shí)就會(huì)產(chǎn)生噪聲。因此，我們只需要在風(fēng)扇軸承上滴幾滴潤(rùn)滑油，如果沒(méi)有使用縫紉機(jī)代替也可以。但是注意千萬(wàn)不要使用食用油來(lái)替代，因?yàn)槠漕w粒比較大，容易對(duì)軸承產(chǎn)生傷害。 </p> <p> 折疊二、固定扇葉 </p> <p> 震動(dòng)噪音亦是風(fēng)扇噪音的一個(gè)重要組成部分，因?yàn)槿~片在軸承上的松動(dòng)以及軸承磨損導(dǎo)致間隙變大等，因此只需要拆下分扇，把螺絲鈕緊，這樣牢牢固定之后，就不會(huì)再震動(dòng)。 </p> <p> 折疊三、打磨扇葉 </p> <p> 另外使用質(zhì)量較差的散熱風(fēng)扇，在制作這類(lèi)風(fēng)扇時(shí)由于工藝上的缺點(diǎn)，扇葉的重心可能沒(méi)有處在軸心上，形成""偏心""，使用時(shí)間一長(zhǎng)，風(fēng)扇的""偏心""現(xiàn)象會(huì)變得越來(lái)越嚴(yán)重，這不僅會(huì)產(chǎn)生噪音，嚴(yán)重的還可能損壞CPU。對(duì)此，可以將共拆下來(lái)，然后用細(xì)線(xiàn)吊在其中心位置，待其靜止后看其向哪一方向下沉，把下沉的一端在砂輪上輕磨幾下，再進(jìn)行測(cè)試，一直待風(fēng)扇能夠處在水平位置之后再將其安裝上去即可。 </p> <p> <br /> </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="寧波50w電梯風(fēng)扇" src="https://tyunfile.71360.com/UploadFile/18867638280/637273869331367187/4182976.png"></div><p> 風(fēng)扇冷散熱器的工作噪音主要有三個(gè)來(lái)源:軸承的摩擦與振動(dòng)、扇葉的振動(dòng)、風(fēng)噪。 </p> <p> 1.風(fēng)扇軸承的摩擦與振動(dòng):不但產(chǎn)生噪音,而且影響性能,縮短器件壽命,降低能源利用效率,是產(chǎn)品設(shè)計(jì)中盡量解決的關(guān)鍵技術(shù)問(wèn)題。 </p> <p> 2.風(fēng)扇扇葉的振動(dòng):一般采用塑料制作的風(fēng)扇扇葉具有一定的韌性,可以承受一定程度的物理形變,同樣也會(huì)在推動(dòng)空氣過(guò)程中因受力發(fā)生振動(dòng),但幅度一般較小。另一種較為嚴(yán)重的振動(dòng)則是由于扇葉質(zhì)量分布不均,質(zhì)心與旋轉(zhuǎn)軸心存在偏心距所致。當(dāng)扇葉面積(質(zhì)量)或偏心距較大的情況下,可能會(huì)帶動(dòng)風(fēng)扇甚至散熱器整體發(fā)生振動(dòng),進(jìn)而波及整個(gè)機(jī)箱。如果發(fā)生此類(lèi)現(xiàn)象,則應(yīng)懷疑風(fēng)扇品質(zhì)與工作狀態(tài)。 </p> <p> 3.風(fēng)扇風(fēng)噪:流動(dòng)的空氣之間互相沖擾,與周?chē)矬w發(fā)生摩擦,葉片對(duì)氣流的分離作用,周期性送風(fēng)的脈動(dòng)力等,都會(huì)產(chǎn)生噪音?？諝饬魉僭娇?湍流越多,往往風(fēng)噪也越大,而且會(huì)隨著風(fēng)速的提高呈加速度增大。普通的軸流風(fēng)扇會(huì)在扇葉與外框間的空隙處產(chǎn)生反激氣流,產(chǎn)生較大風(fēng)噪的同時(shí),更會(huì)對(duì)風(fēng)量造成不利影響,也正因此出現(xiàn)了折緣、側(cè)進(jìn)風(fēng)等改良設(shè)計(jì)。 </p> <p> <br /> </p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/372328.html</p></div></div></div></div></div><div id="ce23roi" 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