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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_gkxtjzb/">工控系統(tǒng)及裝備</a>?<a href="http://www.cdcfah.com/cp/third-gkxtjzb_wsdkzdjq/">溫濕度控制（調(diào)節(jié)）器</a>?湖南不銹鋼冷卻塔推薦廠家貼心服務(wù) 溫州佳諾制冷設(shè)備供應(yīng)</p><div id="hw2ebyk" class="leftbox clearfix"><h1>湖南不銹鋼冷卻塔推薦廠家貼心服務(wù) 溫州佳諾制冷設(shè)備供應(yīng)</h1><div id="3txzb8y" class="proBig"><div id="eyl2v8i" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/jianuo/637315655298193359/9663857.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="r2ynk7h" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/jianuo/637315655298193359/9663857.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="rgyvszw" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價格要求：</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>湖南不銹鋼冷卻塔推薦廠家,冷卻塔</p><p><span>***更新：</span>2021-01-05 03:09:11</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="kurtvce" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">溫州佳諾制冷設(shè)備有限公司</a></p><p><span>聯(lián)系人：</span>王向坤 / 蔣永要</p><p><span>郵箱: </span>990653603@qq.com</p><p><span>電話: </span>13738735303</p><p><span>傳真: </span>153_</p><p><span>網(wǎng)址: </span>http://www.zlsbwz.com</p><p><span>手機(jī): </span>153-25770900</p><p><span>地址: </span>婁橋街道東耕村吹臺東路55號北首</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="isub2za" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="87kczro" class="box"><p><p style="text-indent:25px">干式冷卻塔，水和空氣不直接接觸，只有熱交換的冷卻塔。干式冷卻塔，干式冷卻難的熱水在散熱翅管內(nèi)流動，靠與管外空氣的溫差，形成接觸傳熱而冷卻。所以干式冷卻塔的特點(diǎn)是：1.沒有水的蒸發(fā)損失，也無風(fēng)吹和排污損失，所以干式冷卻塔適合于缺水地區(qū)，如我國的北方地區(qū)。因為沒有蒸發(fā)，所以也沒有但空氣從冷卻塔出口排出所造成的污染。2.水的冷卻靠接觸傳熱，冷卻極限為空氣的干球溫度效率低，湖南不銹鋼冷卻塔推薦廠家，冷卻水溫高，湖南不銹鋼冷卻塔推薦廠家。3.需要大量的金屬管（鋁管或鋼管），因此造價為同容量濕式塔的4～6倍，湖南不銹鋼冷卻塔推薦廠家。因干式冷卻塔有后兩點(diǎn)不利因素，所以在有條件的地區(qū)，應(yīng)盡量采用濕塔。干塔可以用自然通風(fēng)，也可以用機(jī)械通風(fēng)。以火電廠常用的干式冷卻塔為例，分為間接冷卻和直接冷卻兩類。間接冷卻是指用冷卻塔中冷卻后的水，送往凝汽器中冷卻由汽輪機(jī)井出的乏汽。直接冷卻是指不用凝汽器，將汽輪機(jī)排出的乏汽，用管道引人冷卻塔直接冷卻，變?yōu)槟Y(jié)水，用水泵送回鍋爐重復(fù)使用。檢查冷卻塔皮帶的松緊程度并精確調(diào)整電機(jī)皮帶到比較好位置，力求延長皮帶使用壽命;如皮帶損壞，更換皮帶。湖南不銹鋼冷卻塔推薦廠家</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="湖南不銹鋼冷卻塔推薦廠家,冷卻塔" src="https://tyunfile.71360.com/UploadFile/jianuo/637315655298193359/9663857.png"></div><p style="text-indent:25px">冷卻塔中的散熱關(guān)系：在濕式冷卻塔中，熱水的溫度高，流過水表面的空氣的溫度低，水將熱量傳給空氣，由空氣帶走，散到大氣中去，水向空氣散熱有三種形式：① 觸散熱；② 蒸發(fā)散熱；③ 輻射散熱。冷卻塔主要靠前兩種散熱，輻射散熱量很小，可勿略不計。蒸發(fā)散熱通過物質(zhì)交換，即通過水分子不斷擴(kuò)散到空氣中來完成。水分子有著不同的能量，平均能量有水溫決定，在水表面附近一部分動能大的水分子克服鄰近水分子的吸引力逃出水面而成為水蒸氣，由于能量大的水分子逃離，水面附近的水體能量變小。湖南不銹鋼冷卻塔推薦廠家多臺冷卻塔并聯(lián)使用時需要注意哪些問題？</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="湖南不銹鋼冷卻塔推薦廠家,冷卻塔" src="https://tyunfile.71360.com/UploadFile/jianuo/637315655338300781/4321160.png"></div><p style="text-indent:25px">影響傳熱效果的主要因素：冷卻水塔中，水在填料中形成水膜或水滴，在與空氣直接接觸的過程，同時發(fā)生熱和質(zhì)的傳遞；熱傳是由于水與空氣的溫差，而質(zhì)傳是由于水的表面蒸發(fā)形成的水蒸汽不斷地向空氣中擴(kuò)散，同時把水汽化潛熱帶入空氣，在熱量和質(zhì)量的傳遞過程，水冷卻的過程叫做蒸發(fā)冷卻過程，因此水在蒸發(fā)冷卻過程中所散發(fā)的熱量是由兩部分所組成，即接觸散熱（傳導(dǎo)和對流）和蒸發(fā)散熱。影響傳熱效果的主要因素：使用涼水塔目的是達(dá)到一定的降溫效果，其主要取決于散熱片、風(fēng)機(jī)風(fēng)量、涼水塔使用水量，以及良好的通風(fēng)條件，安裝位置也有一定的影響。</p><p style="text-indent:25px">橫流式冷卻塔優(yōu)點(diǎn)：1、水在塔內(nèi)填料中，水自上而下，空氣自塔外水平流向塔內(nèi)兩者流向呈垂直正交一種冷卻塔。常用在噪聲要求嚴(yán)格的居民區(qū)內(nèi)，是空調(diào)界使用較多的冷卻循環(huán)塔。節(jié)能、水壓低、風(fēng)阻小、亦配置低速電機(jī)、無滴水噪聲和風(fēng)動噪聲，填料和配水系統(tǒng)檢修方便。2、可隨建筑形狀隨意構(gòu)筑基礎(chǔ)多臺放置，根據(jù)所需的水溫分別啟動單臺或多臺冷卻塔。應(yīng)注意的是：框架要多40％熱交換時要有較多的填料體積，填料易老化、配水孔易堵塞、防結(jié)冰不好、濕氣回流大。冷卻塔填料清洗回收利用要點(diǎn)有哪些?</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="湖南不銹鋼冷卻塔推薦廠家,冷卻塔" src="https://tyunfile.71360.com/UploadFile/jianuo/637315655359052734/250859.png"></div><p style="text-indent:25px">冷卻塔的常見故障和解決方法：水泵發(fā)熱原因：冷卻塔的軸承損壞；滾動軸承或托架蓋間隙過??；泵軸彎曲或兩軸不同心；膠帶太緊；缺油或油質(zhì)不好；葉輪上的平衡孔堵塞，葉輪失去平衡，增大了向一邊的推力。排除方法：更換軸承；拆除后蓋，在冷卻塔的托架與軸承座之間加裝墊片；調(diào)查泵軸或調(diào)整兩軸的同心度；適當(dāng)調(diào)松膠帶緊度；加注干凈的黃油，黃油占軸承內(nèi)空隙的60％左右；去除冷卻塔中平衡孔內(nèi)的堵塞物。流量不足這是因為：動力轉(zhuǎn)速不配套或皮帶打滑，使轉(zhuǎn)速偏低；軸流泵葉片安裝角太?。粨P(yáng)程不足，管路太長或管路有直角彎；吸程偏高；底閥、管路及葉輪局部堵塞或葉輪缺損；出水管漏水嚴(yán)重。排除方法：恢復(fù)額定轉(zhuǎn)速，去除皮帶油垢，調(diào)整好皮帶緊度；調(diào)好葉片角，降低水泵安裝位置，縮短管路或改變管路的彎曲度；密封水泵漏氣處，壓緊填料；去除堵塞物，更換葉輪；更換減漏環(huán)，堵塞漏水處。按熱水和空氣的流動方向分：①逆流式冷卻塔；②橫流（直交流）式冷卻塔。湖南不銹鋼冷卻塔推薦廠家</p><p style="text-indent:25px">冷卻塔循環(huán)水系統(tǒng)中必須存在一定的富余能量(20%-25%)。湖南不銹鋼冷卻塔推薦廠家</p><p style="text-indent:25px">通常認(rèn)為，“變頻調(diào)速技術(shù)”是完成上述過程的理想方法。但變頻調(diào)速技術(shù)在循環(huán)水冷卻塔風(fēng)機(jī)控制上的運(yùn)用存在如下局限性和缺陷：①“變頻調(diào)速技術(shù)”可以做到很高的控溫精度，但這在循環(huán)冷卻水系統(tǒng)卻不很重要。②變頻器自身的能量損耗（平均運(yùn)行效率不足90%）影響節(jié)能效果。③變速運(yùn)行造成風(fēng)扇葉片攻角改變（迎風(fēng)角），風(fēng)機(jī)脫離工作點(diǎn)運(yùn)行使效率降低。④電機(jī)脫離額定轉(zhuǎn)速的低速運(yùn)行，以及轉(zhuǎn)速、扭矩、功耗之間的非線性關(guān)系，也使電機(jī)的運(yùn)行效率大為降低。⑤變頻調(diào)速系統(tǒng)價格較為昂貴（每千瓦1000元左右），新建工程和老設(shè)備改造都需較大投入。⑥設(shè)計上還必需考慮變頻調(diào)速器運(yùn)行在某些特定轉(zhuǎn)速時的破壞性共振問題，和變頻調(diào)速器產(chǎn)生強(qiáng)電磁污染對其它儀表的干擾等問題。湖南不銹鋼冷卻塔推薦廠家</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2706863.html</p></div></div></div></div></div><div id="2u8e227" class="page-right twoColRt"><div id="edq2gnp" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="i8n7zbd" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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