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class="proBig"><div id="jnfcuwy" 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="gkr8grt" 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="kzwtf84" 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>寧波北侖承建實(shí)驗(yàn)室通風(fēng)柜,通風(fēng)柜</p><p><span>***更新：</span>2020-12-25 03:14:11</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="znk32vc" 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="3heqnp2" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="kjqxo3i" class="box"><p><p style="text-indent:25px">正確使用通風(fēng)柜下要注意以下幾點(diǎn)： 1、通風(fēng)柜在使用時(shí)，寧波北侖承建實(shí)驗(yàn)室通風(fēng)柜，每2小時(shí)進(jìn)行10分鐘的補(bǔ)風(fēng)（即開(kāi)窗通風(fēng)）；使用時(shí)間超過(guò)5小時(shí)的，要敞開(kāi)窗戶，注意避免室內(nèi)出現(xiàn)負(fù)壓，寧波北侖承建實(shí)驗(yàn)室通風(fēng)柜。 2、實(shí)驗(yàn)室內(nèi)在不使用通風(fēng)柜時(shí)也要時(shí)常通風(fēng)，這樣對(duì)試驗(yàn)人員的身體健康有益； 3、當(dāng)2個(gè)以上的通風(fēng)柜共同使用1個(gè)風(fēng)機(jī)時(shí)，為避免操作失誤或不當(dāng)，風(fēng)機(jī)的“開(kāi)”“關(guān)”只能由1個(gè)操作人員來(lái)控制；如另外一個(gè)通風(fēng)柜暫時(shí)不使用或要停止使用，可使用風(fēng)量調(diào)節(jié)閥來(lái)封閉通風(fēng)口；避免相互重復(fù)“開(kāi)”“關(guān)”風(fēng)機(jī)，這樣不但對(duì)風(fēng)機(jī)的壽命產(chǎn)生損害，對(duì)實(shí)驗(yàn)也不精確，寧波北侖承建實(shí)驗(yàn)室通風(fēng)柜。 4、通風(fēng)柜在使用時(shí)，避免人員走動(dòng)帶來(lái)的逆流風(fēng)向?qū)νL(fēng)柜的干擾； 5、室內(nèi)空氣溫度在-5℃至+40℃之間，24小時(shí)平均值不超過(guò)+25℃。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。寧波北侖承建實(shí)驗(yàn)室通風(fēng)柜</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="寧波北侖承建實(shí)驗(yàn)室通風(fēng)柜,通風(fēng)柜" src="https://tyunfile.71360.com/UploadFile/rongke/637334523874814453/7529798.png"></div><p style="text-indent:25px">通風(fēng)柜內(nèi)有的要安置電爐，有的實(shí)驗(yàn)產(chǎn)生大量酸堿等有毒有害氣體具有極強(qiáng)的腐蝕性。通風(fēng)柜的臺(tái)面，襯板、側(cè)板及選用的水咀、氣咀等都應(yīng)具有防腐功能。在半導(dǎo)體行業(yè)或腐蝕性實(shí)驗(yàn)中使用硫酸、硝酸、氫氟酸等強(qiáng)酸的場(chǎng)合還要求通風(fēng)柜的整體材料必須防酸堿，須采用不銹鋼或PVC材料制造。通風(fēng)柜按照排風(fēng)方式分類：分為上部排風(fēng)式、下部排風(fēng)式和上下同時(shí)排風(fēng)式三類。為保證工作區(qū)風(fēng)速均勻，對(duì)于冷過(guò)程的通風(fēng)柜應(yīng)采用下部排風(fēng)式，對(duì)于熱過(guò)程的通風(fēng)柜采用上部排風(fēng)式，對(duì)于發(fā)熱量不穩(wěn)定的過(guò)程，可在上下均設(shè)排風(fēng)口隨柜內(nèi)發(fā)熱量的變化調(diào)節(jié)上下排風(fēng)量的比例，從而得到均勻的風(fēng)速。寧波北侖承建實(shí)驗(yàn)室通風(fēng)柜柜式排風(fēng)罩俗稱通風(fēng)柜，與密閉罩相似。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="寧波北侖承建實(shí)驗(yàn)室通風(fēng)柜,通風(fēng)柜" src="https://tyunfile.71360.com/UploadFile/rongke/637334523573759765/8099577.png"></div><p style="text-indent:25px">通風(fēng)柜的功能： 1、釋放功能：應(yīng)具備將柜子里面產(chǎn)生的有害氣體用吸收柜外氣體的方式，使其稀釋后排掉室外的機(jī)構(gòu)。 2、不倒流功能：應(yīng)具有在柜子里面由排風(fēng)機(jī)產(chǎn)生的氣流將有害氣體從柜里面不反向流進(jìn)室內(nèi)的功能。??? 3、隔開(kāi)功能：在柜子前面應(yīng)具用不滑動(dòng)的玻璃視窗將柜子內(nèi)外進(jìn)行分隔。 4、補(bǔ)充功能：應(yīng)具有在排出有害氣體時(shí)，從柜子外吸入空氣的通道或替代裝置。 5、控制風(fēng)速功能：為以防柜內(nèi)有害氣體逸出，需要有特定的吸入速度。 6、耐熱及耐酸堿腐蝕功能：通風(fēng)柜內(nèi)有的要安置電爐，有的實(shí)驗(yàn)產(chǎn)生大量酸堿等有害氣體具有很強(qiáng)的腐蝕性。它的臺(tái)面，襯板、側(cè)板及選用的水咀、氣咀等都應(yīng)具有防腐功能。</p><p style="text-indent:25px">節(jié)能通風(fēng)柜的定義：低速實(shí)驗(yàn)室通風(fēng)柜是一種好的設(shè)計(jì)，與相同尺寸的通風(fēng)柜所需的體積相比，可以減少所需的排氣量。通過(guò)完全打開(kāi)的垂直窗扇，面風(fēng)速為100 fpm，并提供相當(dāng)于或優(yōu)于ASHRAE 110示蹤氣體測(cè)試等級(jí)4.0 AM 0.05和4.0 AI / AU 0.10的污染物控制水平，通過(guò)完全打開(kāi)的垂直窗扇，面速度為60 fpm或更低。低速通風(fēng)柜也被稱為高性能通風(fēng)柜或高效通風(fēng)柜。為了真正實(shí)現(xiàn)高性能，通風(fēng)柜必須符合SEFA定義。因此。它必須以60 fpm的面速度進(jìn)行測(cè)試，窗扇至少打開(kāi)25英寸。一些通風(fēng)柜被宣傳為可以60 fpm運(yùn)行，但沒(méi)有列出拉門(mén)開(kāi)口位置。制造商必須證明它可以在至少25英寸開(kāi)口的拉門(mén)上操作，以獲得高性能標(biāo)簽。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。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="寧波北侖承建實(shí)驗(yàn)室通風(fēng)柜,通風(fēng)柜" src="https://tyunfile.71360.com/UploadFile/rongke/637334523678027343/1479756.png"></div><p style="text-indent:25px">根據(jù)有害氣體密度與空氣密度大小的不同，鋼制通風(fēng)柜的形式有很多，不同的地方應(yīng)用不同形式的鋼制通風(fēng)柜。鋼制通風(fēng)柜主要形式包含：上部排風(fēng)的鋼制通風(fēng)柜，下部排風(fēng)的鋼制通風(fēng)柜，上下聯(lián)合排風(fēng)的鋼制通風(fēng)柜。同時(shí)，還有節(jié)能型的供氣式鋼制通風(fēng)柜。鋼制通風(fēng)柜的罩面風(fēng)速是衡量鋼制通風(fēng)柜性能的主要技術(shù)指標(biāo)，它是指鋼制通風(fēng)柜開(kāi)口拉門(mén)處的平均入口風(fēng)速。鋼制通風(fēng)柜罩面風(fēng)速的選定準(zhǔn)則是：既要使有害氣體不能從柜內(nèi)逸出，同時(shí)也要避免在鋼制通風(fēng)柜內(nèi)產(chǎn)生紊流。通風(fēng)柜排氣設(shè)備應(yīng)該用狹縫式排氣裝置，以讓排放有毒氣體不會(huì)影響研究人員。寧波北侖承建實(shí)驗(yàn)室通風(fēng)柜</p><p style="text-indent:25px">工作人員在結(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。寧波北侖承建實(shí)驗(yàn)室通風(fēng)柜</p><p style="text-indent:25px">實(shí)驗(yàn)室空氣污染危害大，通風(fēng)柜將環(huán)境有效凈化：目前我國(guó)市場(chǎng)上的通風(fēng)柜種類多種多樣，功能也較為齊全。主要分為項(xiàng)抽式通風(fēng)柜、狹縫式通風(fēng)柜、旁通式通風(fēng)柜、補(bǔ)風(fēng)式通風(fēng)柜、自然通風(fēng)式通風(fēng)柜等幾種類型。值得注意的是，這些通風(fēng)柜可用于理化實(shí)驗(yàn)室和生物實(shí)驗(yàn)室，也可以用于潔凈實(shí)驗(yàn)室，但不適用于生物安全三級(jí)和四級(jí)實(shí)驗(yàn)室。通風(fēng)柜在運(yùn)作過(guò)程中需要注意有機(jī)廢氣的處理。有機(jī)廢氣治理是指用多種技術(shù)措施，通過(guò)不同途徑減少石油損耗、減少有機(jī)溶劑用量或排氣凈化以消除有機(jī)廢氣污染。由于有機(jī)廢氣污染源分布普遍，為防止污染，除減少石油損耗、減少有機(jī)溶劑用量以減少有機(jī)廢氣的產(chǎn)生和排放外，排氣凈化是目前切實(shí)可行的治理途徑。寧波北侖承建實(shí)驗(yàn)室通風(fēng)柜</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/2550388.html</p></div></div></div></div></div><div id="wgdvm29" class="page-right twoColRt"><div id="ihzgdv8" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="q3selnp" 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" 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