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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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onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="7egdfmb" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/bingpu/637401016679253334/4302164.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="8ifc7cp" class="content"><p><span>需求數量：</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>產品關鍵詞：</span>浙江液態(tài)制冷劑哪家好,制冷劑</p><p><span>***更新：</span>2021-01-08 06:18:04</p><p><span id="click" >瀏覽次數：4次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="uo7khjd" 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="pedfmjq" class="page-proshow02"><p class="title">詳細說明</p><div id="pzgipwi" class="box"><p><p style="text-indent:25px">氟利昂和烷氫類制冷劑：烷氫類化合物的分子通式：CmH2m+2；氟利昂是飽合碳氫化合物(烷族)的鹵族元素衍生物的總稱，分子通式為R（m-1）(n+1)(X),若有Br（溴）原子，再加字母B和原子數，若（m-1）=0，則“0”略去不寫。下面列舉幾種編號：名稱分子式m,n,x,z值編號；一氯二氟甲烷CHF2Clm=1,n=1,x=2,z=0R22；二氯撒氟乙烷C2HF3Cl2m=2,n=1,x=3，浙江液態(tài)制冷劑哪家好,z=0R123；三氟一溴甲烷CF3Brm=1,n=0,x=3,z=1R13B1；丙烷C3H8m=3,n=8,x=0，浙江液態(tài)制冷劑哪家好,z=0R290?；旌现评鋭；旌现评鋭┮垣@取命名的順序編號的；共沸混合制冷劑編號為R5，從R500開始R501,R502等。非共沸混合制冷劑編號為R4，從R401，R404，R410等。同素異構體加注小寫數字母，如CHF2-CHF2R134，浙江液態(tài)制冷劑哪家好,CF3-CH2FR134a。如氟利昂，共沸混合工質、碳氫化合物、氨等都是制冷劑；浙江液態(tài)制冷劑哪家好</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="浙江液態(tài)制冷劑哪家好,制冷劑" src="https://tyunfile.71360.com/UploadFile/bingpu/637401016679253334/4302164.png"></div><p style="text-indent:25px">氨制冷裝置中不能使用銅及銅合金材料，并規(guī)定氨中含水量不應超過0.2%。氨的臨界溫度較高（tkr=132℃），汽化潛熱大，在大氣壓力下為1164KJ/Kg，標準工況下的單位容積制冷量也大，氨壓縮機尺寸可以較小。純氨對潤滑油無不良影響，但有水分時，會降低冷凍油的潤滑作用。氨在潤滑油中不易溶解，故要在裝置中設置油分離器，減少潤滑油進入冷凝器和蒸發(fā)器，防止熱交換表面被油污染后傳熱性能降低。純氨對鋼鐵無腐蝕作用，但當氨中含有水分時將腐蝕銅和銅合金（磷青銅除外），故在氨制冷系統(tǒng)中對管道及閥件均不采用銅和銅合金。浙江液態(tài)制冷劑哪家好R410A制冷劑是不破壞大氣臭氧層的環(huán)保制冷劑。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="浙江液態(tài)制冷劑哪家好,制冷劑" src="https://tyunfile.71360.com/UploadFile/bingpu/637401017505737624/6030599.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。</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1,1,1,2-- 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、F-12、CFC-12、Freon 12、二氯二氟甲烷）制冷劑的多數領域制冷劑需較高的傳熱系數、較低的粘度及較小的密度。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="浙江液態(tài)制冷劑哪家好,制冷劑" src="https://tyunfile.71360.com/UploadFile/bingpu/637401016799224123/4149753.png"></div><p style="text-indent:25px">制冷劑在蒸發(fā)器中被制冷劑冷卻后，送到冷卻設備中，吸收被冷卻物體或空間的熱量，再返回蒸發(fā)器重新被冷卻，如此循環(huán)不止，以達到傳遞制冷量的目的。在鹽水制冰、冰蓄冷系統(tǒng)、集中空調等需要采用間接冷卻方法的運作過程中，需使用載冷劑來傳送冷量。載冷劑在制冷系統(tǒng)的蒸發(fā)器中被冷卻后，用來冷卻被冷卻物質，然后再返回蒸發(fā)器，將熱量傳遞給制冷劑。制冷劑起到了運載冷量的作用，故又稱為冷媒。這樣既可減少制冷劑的充灌量，減少泄露的可能性，又易于解決冷量的控制和分配問題。載冷劑與載冷劑循環(huán)特點載冷劑是在間接冷卻中的制冷裝置中完成把被冷卻系統(tǒng)（物體或空間）的熱量傳遞給制冷劑的中R間冷卻介質。這種中間冷卻介質也稱為第二制冷劑。要求制冷劑低廉，易于獲得。江蘇液態(tài)制冷劑要多少錢</p><p style="text-indent:25px">制冷劑是制冷機中完成熱力循環(huán)的工質。浙江液態(tài)制冷劑哪家好</p><p style="text-indent:25px">R-124（一氯四氟乙烷）制冷劑物化性質：一氯四氟乙烷CHClFCF3，HCFC-124（R124），分子量136.5，沸點-10.95℃，臨界溫度122.25℃，臨界壓力3.613MPa，破壞臭氧潛能值（ODP）為0.02，全球變暖潛能值(GWP，100 yr)為0.10。主要用途：HCFC-124（R124）主要用作制冷劑、滅火劑，是混合工質的重要組分，可替代 CFC-114。產品包裝：鋼瓶包裝，13.6kg/瓶。 R-141b（二氯一氟乙烷）制冷劑物化性質：二氯一氟乙烷CH3CCl2F，HCFC-141b，分子量116.95，沸點32.05℃，臨界溫度204.5℃，臨界壓力4.25MPa，破壞臭氧潛能值（ODP）為0.11，全球變暖潛能值(GWP，100 yr)為0.09。主要用途：該產品可替代 CFC-11 作硬質聚氨酯泡沫塑料的發(fā)泡劑，替代 CFC-113 作清洗劑，也用于作制冷劑。產品包裝：鋼桶包裝，20kg/桶，250kg/桶。浙江液態(tài)制冷劑哪家好</p><p style="text-indent:25px">上海冰仆冷暖設備有限公司主要經營范圍是化工，擁有一支專業(yè)技術團隊和良好的市場口碑。公司業(yè)務分為制冷劑廠家直銷，冷凍油廠家直銷，壓縮機批發(fā)銷售，制冷配件批發(fā)銷售等，目前不斷進行創(chuàng)新和服務改進，為客戶提供良好的產品和服務。公司秉持誠信為本的經營理念，在化工深耕多年，以技術為先導，以自主產品為重點，發(fā)揮人才優(yōu)勢，打造化工良好品牌。冰仆冷暖設備立足于全國市場，依托強大的研發(fā)實力，融合前沿的技術理念，飛快響應客戶的變化需求。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2754553.html</p></div></div></div></div></div><div id="h2yfh27" class="page-right twoColRt"><div id="3i7z8um" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="fp8vsel" 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" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強信息推薦自業(yè)物資供應</p></a></div><div id="8wtqcjg" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/846569.html"><div><img 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