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id="8a2upb4" class="page-proshow clearfix"><p class="current"> 當(dāng)前位置:<a href="http://www.cdcfah.com/">首頁(yè)?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://www.cdcfah.com/cp/first-_bgwj/">辦公、文教</a>?<a href="http://www.cdcfah.com/cp/second-bgwj_sysyp/">實(shí)驗(yàn)室用品</a>?<a href="http://www.cdcfah.com/cp/third-sysyp_qtsysyphq/">其他實(shí)驗(yàn)室用品</a>?寧波實(shí)驗(yàn)室通風(fēng)柜制造商創(chuàng)造輝煌寧波榮科科技實(shí)業(yè)供應(yīng)</p><div id="eh3if3f" class="leftbox clearfix"><h1>寧波實(shí)驗(yàn)室通風(fēng)柜制造商創(chuàng)造輝煌寧波榮科科技實(shí)業(yè)供應(yīng)</h1><div id="lazvctc" class="proBig"><div id="7b4k3gg" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/rongke/637334523874814453/7529798.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="447dghw" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/rongke/637334523874814453/7529798.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="xdu5qdx" 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>寧波實(shí)驗(yàn)室通風(fēng)柜制造商,通風(fēng)柜</p><p><span>***更新：</span>2020-12-30 08:15:11</p><p><span id="click" >瀏覽次數(shù)：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="h4p8duk" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">寧波榮科科技實(shí)業(yè)有限公司</a></p><p><span>聯(lián)系人：</span>程彩云</p><p><span>郵箱: </span>2529945077@qq.com</p><p><span>電話: </span>13028978763</p><p><span>傳真: </span>1302_</p><p><span>網(wǎng)址: </span>http://www.rk-lab.cn</p><p><span>手機(jī): </span>1302-28978763</p><p><span>地址: </span>集士港鎮(zhèn)賣(mài)面橋村</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="rl4wtq6" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="sev9uu0" class="box"><p><p style="text-indent:25px">補(bǔ)風(fēng)型排風(fēng)柜：補(bǔ)風(fēng)型排風(fēng)柜在過(guò)去一度受到青睞，主要基于兩方面的考慮：首先是安全性，寧波實(shí)驗(yàn)室通風(fēng)柜制造商，因?yàn)樗盟惋L(fēng)沖刷呼吸區(qū)并帶走污染物；其次是節(jié)能性，因?yàn)檠a(bǔ)風(fēng)(較高可達(dá)70％)不必處理即可送至柜前，從而省去了大量空調(diào)能耗。但實(shí)驗(yàn)及研究表明，補(bǔ)風(fēng)型排風(fēng)柜在這兩個(gè)方面都無(wú)法達(dá)到人們預(yù)期效果。首先，補(bǔ)風(fēng)型排風(fēng)柜引入了大量補(bǔ)風(fēng)基本上很少和室內(nèi)空氣混合而直接被吸走，這就使得房間內(nèi)其它空間區(qū)域可能存在的污染物只能通過(guò)少量的送風(fēng)進(jìn)行稀釋，這本身減少了安全性，而且柜前補(bǔ)風(fēng)會(huì)嚴(yán)重影響柜面處的氣流，擾動(dòng)加劇，寧波實(shí)驗(yàn)室通風(fēng)柜制造商，很可能導(dǎo)致有害物溢出。而由于采用柜內(nèi)排風(fēng)，通過(guò)柜面的風(fēng)量減少導(dǎo)致風(fēng)速下降，后果更為嚴(yán)重，一般不建議采用，寧波實(shí)驗(yàn)室通風(fēng)柜制造商。其次，開(kāi)始的節(jié)能是考慮不對(duì)新風(fēng)處理這一前提而提出的。但指出為了確保溫度的一致性和操作者的舒適性，補(bǔ)風(fēng)溫度和房間溫度差值應(yīng)小于3℃，這一要求使其節(jié)能性不復(fù)存在。另外，一般的補(bǔ)風(fēng)型排風(fēng)柜都會(huì)在操作者頭部、肩部引起吹風(fēng)感，使人感到不適，而且補(bǔ)風(fēng)在冷表面上還會(huì)出現(xiàn)結(jié)冷凝水的情況。半密閉式通風(fēng)柜指由于操作上需要，經(jīng)常無(wú)法將污染物設(shè)備完全或部分地封閉，必須開(kāi)有較大的工作孔的通風(fēng)柜。寧波實(shí)驗(yàn)室通風(fēng)柜制造商</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="寧波實(shí)驗(yàn)室通風(fēng)柜制造商,通風(fēng)柜" src="https://tyunfile.71360.com/UploadFile/rongke/637334523874814453/7529798.png"></div><p style="text-indent:25px">實(shí)驗(yàn)室排風(fēng)柜使用的屋頂排放高度：要求高出屋頂高度3米。實(shí)驗(yàn)室排風(fēng)柜屋頂排放濃度：要求經(jīng)過(guò)中效及活性炭過(guò)濾后進(jìn)行排放。滿足大氣排放標(biāo)準(zhǔn)。如遇酸性氣體，則需要考慮化學(xué)過(guò)濾器裝置在排風(fēng)箱中。如氣體有危險(xiǎn)性，則排風(fēng)機(jī)要考慮對(duì)應(yīng)的防爆等級(jí)進(jìn)行選型。?在實(shí)驗(yàn)室通風(fēng)空調(diào)系統(tǒng)中，送風(fēng)量的確定很大程度上不是由室內(nèi)負(fù)荷決定的，而是由排風(fēng)量決定。如前所述，通過(guò)負(fù)壓控制確保安全是實(shí)驗(yàn)室通風(fēng)空調(diào)的首要任務(wù)。目前普遍采用的就是設(shè)置壓差傳感器，保持設(shè)定壓差，這種控制方式對(duì)傳感器的精度要求相當(dāng)高，在實(shí)際運(yùn)行中很難保證任何時(shí)刻的壓差恒定。必須指出，并非傳感器精度和靈敏性越高，控制效果就越好。因?yàn)閷?shí)際過(guò)程中往往會(huì)有各種瞬時(shí)外界因素干擾氣流，影響室內(nèi)靜壓，如果過(guò)于靈敏，反而會(huì)出現(xiàn)與期望值相反的結(jié)果。另外，新風(fēng)吸入口的選擇也須十分謹(jǐn)慎，首要原則就是盡可能遠(yuǎn)離排風(fēng)口，其次新風(fēng)口位置也不能太低，由于地面活動(dòng)如一定范圍內(nèi)的汽車(chē)尾氣濃度和灰塵顆粒濃度較高，不僅影響實(shí)驗(yàn)室內(nèi)的空氣品質(zhì)和實(shí)驗(yàn)室安全，也縮短了過(guò)濾器的使用壽命。寧波實(shí)驗(yàn)室通風(fēng)柜制造商在實(shí)驗(yàn)室柜體安裝的全過(guò)程中，必須綜合展開(kāi)考慮。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="寧波實(shí)驗(yàn)室通風(fēng)柜制造商,通風(fēng)柜" src="https://tyunfile.71360.com/UploadFile/rongke/637334523710615234/9241464.png"></div><p style="text-indent:25px">通風(fēng)柜的分類及原理。變風(fēng)量式通風(fēng)柜：普通的定風(fēng)量系統(tǒng)需要人工調(diào)整固定葉片的風(fēng)閥，調(diào)節(jié)通風(fēng)柜的排風(fēng)量，當(dāng)調(diào)節(jié)閥門(mén)到某一角度時(shí)達(dá)到希望的面風(fēng)速。可分為整體式下部開(kāi)放式、落地式、兩面式、三面玻璃式、桌上式、連體式以及根據(jù)不同實(shí)驗(yàn)使用需要而設(shè)計(jì)的對(duì)放射性實(shí)驗(yàn)的、對(duì)合成實(shí)驗(yàn)的，對(duì)過(guò)氯酸實(shí)驗(yàn)的**通風(fēng)柜?？煞譃橥馀判屯L(fēng)柜和無(wú)管道通風(fēng)柜。外排型通風(fēng)柜是可以將實(shí)驗(yàn)操作時(shí)產(chǎn)生的有毒有害氣體，通過(guò)外接的管道直接抽出到室外。</p><p style="text-indent:25px">氣幕式通風(fēng)柜雖然增加了送風(fēng)動(dòng)力消耗,但氣幕式通風(fēng)柜的排風(fēng)量有效減少,排風(fēng)動(dòng)力消耗也有效降低,因此綜合而言,氣幕式通風(fēng)柜的節(jié)能效益是很大的,有些問(wèn)題還有待進(jìn)一步研究。氣幕式通風(fēng)柜通過(guò)射流將通風(fēng)柜操作口完全封閉,射流在流動(dòng)的過(guò)程中要不斷地卷吸室內(nèi)的空氣,但這部分卷吸量很少,對(duì)采暖空調(diào)房間的壓力影響不太明顯。而補(bǔ)風(fēng)型排風(fēng)柜排風(fēng)量比較大,當(dāng)柜門(mén)開(kāi)啟時(shí),其30%的排風(fēng)量要由室內(nèi)空氣補(bǔ)充,這對(duì)采暖空調(diào)房間而言,可能會(huì)造成壓力較明顯的變化。因此,采用氣幕式通風(fēng)柜的室內(nèi)壓力比補(bǔ)風(fēng)型通風(fēng)柜的室內(nèi)壓力更易于平衡。另外通風(fēng)柜的節(jié)能效果還與有害物的溫度、通風(fēng)柜的結(jié)構(gòu)、系統(tǒng)設(shè)計(jì)安裝是否合理等因素密切相關(guān),只要廣大暖通專業(yè)技術(shù)工作者根據(jù)具體情況,勇于探索,一定會(huì)節(jié)省更多的能量。通風(fēng)柜流線形手把，手把與玻璃之間留有空隙由于空氣在臺(tái)面上的流動(dòng)是旋轉(zhuǎn)的，從而保證有效地的進(jìn)氣。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="寧波實(shí)驗(yàn)室通風(fēng)柜制造商,通風(fēng)柜" src="https://tyunfile.71360.com/UploadFile/rongke/637334523883417968/1156183.png"></div><p style="text-indent:25px">操作人員在結(jié)束工作、離開(kāi)通風(fēng)柜前，應(yīng)將通風(fēng)柜內(nèi)設(shè)備電源關(guān)閉，并將所有水、電、氣開(kāi)關(guān)予以關(guān)閉，將調(diào)節(jié)門(mén)降至低位置后方可離開(kāi)。通風(fēng)柜內(nèi)雖均為高分子耐腐蝕材料，但為延長(zhǎng)使用壽命，適當(dāng)?shù)那鍧嵄ｐB(yǎng)是必要的。平時(shí)使用時(shí)若有試劑、藥品噴濺應(yīng)即時(shí)拭擦，在每天停止工作離去前，應(yīng)將內(nèi)部以清水擦拭清潔，每三個(gè)月至少一次將導(dǎo)流板卸下清洗檢查。通風(fēng)柜下方的柜子因裝有電源控制箱，所以嚴(yán)禁放置任何具有腐蝕性物質(zhì)，也不能將電源控制箱擋住，以免發(fā)生危險(xiǎn)。通風(fēng)柜在各種生化和理化實(shí)驗(yàn)室中有著非常普遍的應(yīng)用。寧波實(shí)驗(yàn)室通風(fēng)柜制造商</p><p style="text-indent:25px">通風(fēng)柜的安全性能是需要保障的。寧波實(shí)驗(yàn)室通風(fēng)柜制造商</p><p style="text-indent:25px">使用通風(fēng)柜的時(shí)間比較長(zhǎng)，必須要認(rèn)真的做好各個(gè)方面的檢查，這樣才能夠減少問(wèn)題，同時(shí)確保使用的過(guò)程更順利，很多人在做這些檢查方面的工作，可能對(duì)于其中具體的一些方法，了解的不是特別的多，這樣就會(huì)直接影響到后續(xù)的使用情況，那么大家平時(shí)在應(yīng)用的過(guò)程中如何做好檢查？每隔一段時(shí)間就要定期做好檢查，使用的時(shí)間比較長(zhǎng)，不知道什么時(shí)候會(huì)出現(xiàn)問(wèn)題，只有當(dāng)我們大家都能夠定期的去做好這些檢查方面的工作，看一看社會(huì)本身的這些情況，然后再去進(jìn)行使用，這樣所起到的作用才會(huì)更加的不錯(cuò)，所以大家在應(yīng)用的過(guò)程中，必須要采用一些恰當(dāng)?shù)姆椒?。寧波?shí)驗(yàn)室通風(fēng)柜制造商</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/2628357.html</p></div></div></div></div></div><div id="r69sawg" class="page-right twoColRt"><div id="tphdgx0" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="jkh0ret" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" alt="福建ZF配件哪家強(qiáng) 信息推薦自業(yè)物資供應(yīng)" class="vcenter" 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