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<script>var V_PATH="/";window.onerror=function(){ return true; };</script> </head><body> <h1><a href="http://www.cdcfah.com/">六月丁香婷婷亚洲中文字幕,欧美精品高清一区二区蜜芽,尤物92午夜福利视频,精品视频一区二区三区在线观看</a></h1> <div style="position:fixed;left:-9000px;top:-9000px;"><object id="qgqbi"></object><delect id="qgqbi"><sub id="qgqbi"><dl id="qgqbi"></dl></sub></delect><track id="qgqbi"></track><tr id="qgqbi"></tr><video id="qgqbi"></video><xmp id="qgqbi"><span id="qgqbi"></span></xmp><span id="qgqbi"></span><strong id="qgqbi"><em id="qgqbi"><sup id="qgqbi"><progress id="qgqbi"></progress></sup></em></strong><dl id="qgqbi"><small id="qgqbi"></small></dl><wbr id="qgqbi"></wbr><noscript id="qgqbi"></noscript><tr id="qgqbi"></tr><track id="qgqbi"><dl id="qgqbi"></dl></track><label id="qgqbi"><em id="qgqbi"></em></label><tbody id="qgqbi"></tbody><blockquote id="qgqbi"></blockquote><dfn id="qgqbi"><center id="qgqbi"></center></dfn><sub id="qgqbi"></sub><u id="qgqbi"></u><noframes id="qgqbi"></noframes><menu 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src="https://tyunfile.71360.com/UploadFile/bingpu/637401017250659526/928915.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="8imjeql" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/bingpu/637401017250659526/928915.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="jrparnj" 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>上海市</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關鍵詞：</span>杭州制冷劑管道,制冷劑</p><p><span>***更新：</span>2020-11-12 06:26:47</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="3iqryjv" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">上海冰仆冷暖設備有限公司</a></p><p><span>聯(lián)系人：</span>徐佳華</p><p><span>郵箱: </span>444054147@qq.com</p><p><span>電話: </span>13761656620</p><p><span>傳真: </span>1_1</p><p><span>網(wǎng)址: </span>https://www.shbpln.com</p><p><span>手機: </span>1-1</p><p><span>地址: </span>美丹路222號629室</p><p>[當前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="2ayjam3" class="page-proshow02"><p class="title">詳細說明</p><div id="jj7iuqc" class="box"><p><p style="text-indent:25px">R-134a制冷劑別名R134a、HFC134a、HFC-134a、四氟乙烷，商品名稱有SUVA 134a、Genetron 134a、KLEA 134a等，中文名稱四氟乙烷，英文名稱1,1,1,2-tetrafluoroethane，化學名1，杭州制冷劑管道,1,1,2-- 四氟乙烷，分子式CH2FCF3。由于R-134a屬于HFC類物質（非ODS物質Ozone-depleting Substances）——因此完全不破壞臭氧層，是當前世界絕大多數(shù)的各國認可并推薦使用的環(huán)保制冷劑，也是目前主流的環(huán)保制冷劑，較廣用于新制冷空調設備上的初裝和維修過程中的再添加。R-134a作為使用較較廣的中低溫環(huán)保制冷劑，由于HFC-134a 良好的綜合性能，使其成為一種非常有效和安全的CFC-12的替代品，主要應用于在使用 R-12（R12、氟利昂12，杭州制冷劑管道、F-12、CFC-12，杭州制冷劑管道、Freon 12、二氯二氟甲烷）制冷劑的多數(shù)領域制冷劑在冷凝器中將熱量傳遞給周圍空氣或水而冷凝。杭州制冷劑管道</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="杭州制冷劑管道,制冷劑" src="https://tyunfile.71360.com/UploadFile/bingpu/637401017250659526/928915.png"></div><p style="text-indent:25px">目前我國空調行業(yè)使用較多的制冷劑是HCFC物質R22。R290與R22的標準沸點、凝固點、臨界點等基本物理性質非常接近，具備替代R22的基本條件。在飽和液態(tài)時，R290的密度比R22小，因此相同容積下R290的灌注量更小，試驗證明相同系統(tǒng)體積下R290的灌注量是R22的43%左右。另外，由于R290的汽化潛熱大約是R22的2倍左右，因此采用R290的制冷系統(tǒng)制冷劑循環(huán)量更小。R290具有良好的材料相容性，與銅、鋼、鑄鐵、潤滑油等均能良好相容。未來我國還將進一步加大使用R290制冷劑的空調產(chǎn)線改造示范試點力度。隨著對R290應用技術研究的不斷深入、使用經(jīng)驗的不斷積累，環(huán)保型制冷劑R290未來將擁有廣闊的市場應用前景。杭州制冷劑管道雖然ASHRAE標準34把許多物質分類為制冷劑，但只有少部分用于商業(yè)空調。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="杭州制冷劑管道,制冷劑" src="https://tyunfile.71360.com/UploadFile/bingpu/637401016667544935/4494992.png"></div><p style="text-indent:25px">制冷劑的回收：制冷劑回收主要有以下三種方法：冷卻法，壓縮法，吸附分離法，回收過程中會造成制冷劑質量不純，因此較好對回收的制冷劑進行再生處理?；厥詹襟E：1），將歧管壓力計接到回收機及汽車空調系統(tǒng)上，注意連接前必須使用空調系統(tǒng)的制冷劑沖洗所有連接軟管，以排除軟管內的空氣。2），將回收鋼瓶與回收機連接起來，同樣要排除軟管內的空氣。3），接上電源，打開開關，按說明書進行回收操作和中斷。4），使用真空泵，進行系統(tǒng)抽真空。5），將回收后經(jīng)過干燥，過濾，去油處理的制冷劑充裝到回收鋼瓶中。關機，切斷電源，替換所有連接管。</p><p style="text-indent:25px">制冷劑物質性能優(yōu)良、無毒、不燃，能適應不同的溫度區(qū)域，明顯地改善了制冷機的性能。幾種制冷劑在空調中變得很普遍，包括CFC-11.CFC-12. CFC-113.CFC-114和HCFC-22.20世紀50年代的，開始使用共沸制冷劑。60年代開始使用非共沸制冷劑?？照{工業(yè)從幼小成長為幾十億美元的產(chǎn)業(yè)，使用的都是以上幾種制冷劑。到1963年,這些制冷劑占到整個有機氟工業(yè)產(chǎn)量的98%。到1970年代中期，對臭氧層變薄的關注浮出水面，CFC族物質可能要承擔部分責任。這導致了1987年蒙特利爾議定書的通過，議定書要求淘汰CFC和HCFC族。制冷劑需有良好的電氣絕緣性。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="杭州制冷劑管道,制冷劑" src="https://tyunfile.71360.com/UploadFile/bingpu/637401017451450490/8007011.png"></div><p style="text-indent:25px">制冷劑冷卻法回收：使制冷劑蒸氣冷卻液化，可使用干冰等使制冷劑冷卻，液化后回收，此法適宜于干凈的制冷劑。冷卻法有一套**的冷凍循環(huán)系統(tǒng)，回收容器內的制冷劑在蒸發(fā)器中冷凝成液體。從汽車空調系統(tǒng)排出的制冷劑通過過濾干燥器，除去水分和雜質；通過分油器除去制冷劑中的潤滑油，進入回收容器。對于制冷劑純度要求不太嚴格的場合，被回收的制冷劑可重新加注到制冷系統(tǒng)。真空檢漏：用真空泵進行，真空度應達到0.1MPa，保持24h內真空度沒有明顯升高即可。抽真空用于抽出系統(tǒng)中殘留的氮氣、檢查系統(tǒng)有無泄漏以及使系統(tǒng)干燥。只有在系統(tǒng)抽真空后才能加注制冷劑。外觀檢漏：制冷劑泄漏部位往往會滲出冷凍潤滑油，若發(fā)現(xiàn)在某處有油污滲出，可進一步用清潔的白紙擦拭或用手直接觸摸檢查。如仍有油冒出，則可能有泄漏。R410A 是一種不含氯的氟代烷非共沸混合制冷劑。浙江環(huán)保制冷劑一般加多少</p><p style="text-indent:25px">如氟利昂，共沸混合工質、碳氫化合物、氨等都是制冷劑；杭州制冷劑管道</p><p style="text-indent:25px">我國石化和化工有限責任公司供給側結構性調整，要解決好四個矛盾，即行業(yè)存量與增量的矛盾，產(chǎn)能過剩與市場選擇性短缺的矛盾，**化發(fā)展需求迫切與技術創(chuàng)新不足的矛盾，產(chǎn)業(yè)發(fā)展與社會和自然環(huán)境的矛盾。中國化工企業(yè)正在迎來貿(mào)易型發(fā)展的春天，既包括以“科學至上”為口號的中化集團等業(yè)內巨頭，也包括在酶、催化、納米材料、電池材料等多個前沿領域開拓的初創(chuàng)公司。批發(fā)主要是指應用于建筑過程中的化學品或化學藥劑。不僅包括直接應用于建筑工程的化學品，也包括經(jīng)過復合加工衍生而取得的其他建筑化學品。建筑化學品是服務于結構材料、維護材料和裝修裝飾材料施工應用的一類化學材料。開發(fā)環(huán)境友好型工業(yè)制冷劑廠家直銷，冷凍油廠家直銷，壓縮機批發(fā)銷售，制冷配件批發(fā)銷售是許多發(fā)達地區(qū)正在積極探索的高科技項目，在國內更是一個新興的領域。制冷劑廠家直銷，冷凍油廠家直銷，壓縮機批發(fā)銷售，制冷配件批發(fā)銷售領域由于與國外技術接軌較早，加之各種法規(guī)政策的驅動，一些環(huán)境友好有用的產(chǎn)品已經(jīng)得到了廣大的應用。杭州制冷劑管道</p><p style="text-indent:25px">上海冰仆冷暖設備有限公司是一家銷售:制拎設備、化工產(chǎn)品(除危險化學品、監(jiān)控化學品、煙花爆竹、民用物品、易制毒化學品)、儀器儀表、汽車配件，機械配件、五金電器、焊接工具。銷售:制拎設備、化工產(chǎn)品(除危險化學品、監(jiān)控化學品、煙花爆竹、民用物品、易制毒化學品)、儀器儀表、汽車配件，機械配件、五金電器、焊接工具。的公司，致力于發(fā)展為創(chuàng)新務實、誠實可信的企業(yè)。公司自創(chuàng)立以來，投身于制冷劑廠家直銷，冷凍油廠家直銷，壓縮機批發(fā)銷售，制冷配件批發(fā)銷售，是化工的主力軍。冰仆冷暖設備始終以本分踏實的精神和必勝的信念，影響并帶動團隊取得成功。冰仆冷暖設備始終關注自身，在風云變化的時代，對自身的建設毫不懈怠，高度的專注與執(zhí)著使冰仆冷暖設備在行業(yè)的從容而自信。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/1956858.html</p></div></div></div></div></div><div id="h8uqrtk" class="page-right twoColRt"><div id="qbvwlwh" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="8lxdkb3" 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配件哪家強信息推薦自業(yè)物資供應" class="vcenter" 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