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class="pic"><img src="https://tyunfile.71360.com/UploadFile/bingpu/637401016762036788/8015452.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="edfhjqs" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/bingpu/637401016762036788/8015452.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="im3wya8" 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>浙江杜邦制冷劑管道,制冷劑</p><p><span>***更新：</span>2021-01-06 05:18:20</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="bpmovmj" 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="gacegs7" class="page-proshow02"><p class="title">詳細說明</p><div id="mq77s8v" class="box"><p><p style="text-indent:25px">R-134a(代號：R134a）分子式： CH 2 FCF 3 （四氟乙烷），分子量：102.03，沸點：-26.26℃ ，凝固點：-96.6°C ，臨界溫度：101.1 ℃ ，臨界壓力：4067kpa，飽和液體密度：25℃ ， 1.207g/cm 3 ，液體比熱：25℃ ， 1.51KJ/(Kg·℃)，溶解度( 水中， 25℃ ) ：0.15% ，臨界密度：0.512g/cm3，浙江杜邦制冷劑管道，破壞臭氧潛能值（ ODP ）：0 ，全球變暖系數(shù)值（ GWP ）：0.29，沸點下蒸發(fā)潛能 :215 kJ/kg，質量指標：純度 ≥ 99.9 % ，水份PPm≤ 0.0010，酸度 PPm≤ 0.00001 ，蒸發(fā)殘留物PPm≤ 0.01，R134a作為R12的替代制冷劑，它的許多特性與R12很相像。R134a的毒性非常低，浙江杜邦制冷劑管道，在空氣中不可燃，安全類別為A1，浙江杜邦制冷劑管道，是很安全的制冷劑。氨是目前使用較為較廣的一種中壓中溫制冷劑。浙江杜邦制冷劑管道</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="浙江杜邦制冷劑管道,制冷劑" src="https://tyunfile.71360.com/UploadFile/bingpu/637401016762036788/8015452.png"></div><p style="text-indent:25px">二十世紀初，制冷系統(tǒng)開始作為大型建筑的空氣調節(jié)手段。位于德克薩斯圣安東尼奧的梅蘭大廈是首先個全空調高層辦公樓。1926年，托馬斯.米奇尼（Thomas Midgely）開發(fā)了首臺CFC（氯氟碳）機器，使用R-12. CFC族（氯氟碳）不可燃、無毒（和二氧化硫相比時）并且能效高。該機器于1931年開始商業(yè)生產(chǎn)并很快進入家用。威利斯.開利（Willis Carrier）開發(fā)了首先臺商用離心式制冷機，開創(chuàng)了制冷和空調的紀元。20世紀30年代，一系列鹵代烴制冷劑相繼出現(xiàn)，杜邦公司將其命名為氟利昂（Freon）。杭州干冰制冷劑費用制冷劑是制冷機中完成熱力循環(huán)的工質。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="浙江杜邦制冷劑管道,制冷劑" src="https://tyunfile.71360.com/UploadFile/bingpu/637401016816089362/2230040.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。回收步驟：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(nèi)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(nèi)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">目前制冷劑價格上升主要有三個因素：首先是的各國將螢石提升為戰(zhàn)略性資源，對其實行了保護性開發(fā)；其次是空調（包括汽車空調）消費量的增加帶動了對制冷劑的需求；較后還有資金炒火的因素。制冷劑價格上升還有一個國際因素，根據(jù)《蒙特利爾議定書》，2010年發(fā)達的各國的低端制冷劑（如R22）產(chǎn)能已基本關停，發(fā)達的各國不再使用R22作為制冷劑，但R22作為下游含氟聚合物的主要原料，其對R22的需求依然存在。由于發(fā)展中的各國對R22完全淘汰還要等到2030年，因此這對發(fā)展中的各國的制冷劑生產(chǎn)商來說也是一個利好。目前R22的供需缺口至少維持至2013年，也意味著制冷劑的行業(yè)景氣至少還能持續(xù)兩年時間。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="浙江杜邦制冷劑管道,制冷劑" src="https://tyunfile.71360.com/UploadFile/bingpu/637401016134136108/3814907.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。共沸制冷劑由兩種或兩種以上的制冷劑按一定的比例混合而成。科慕制冷劑</p><p style="text-indent:25px">R404A 制冷劑常溫常壓下為無色氣體，貯存在鋼瓶內(nèi)是被壓縮的液化氣體。浙江杜邦制冷劑管道</p><p style="text-indent:25px">氨的比重和粘度小，放熱系數(shù)高，價格便宜，易于獲得。但是，氨有較強的毒性和可燃性。若以容積計，當空氣中氨的含量達到0.5%～0.6%時，人在其中停留半個小時即可中毒，達到11%～13%時即可點燃，達到16%時遇明火就會。因此，氨制冷機房必須注意通風排氣，并需經(jīng)常冰箱排除系統(tǒng)中的空氣及其它不凝性氣體?？偵纤?，氨作為制冷劑的優(yōu)點是：易于獲得、價格低廉、壓力適中、單位制冷量大、放熱系數(shù)高、幾乎不溶解于油、流動阻力小，泄漏時易發(fā)現(xiàn)。其缺點是：有刺激性臭味、有毒、可以燃燒和，對銅及銅合金有腐蝕作用。浙江杜邦制冷劑管道</p><p style="text-indent:25px">上海冰仆冷暖設備有限公司總部位于美丹路222號629室，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。冰仆冷暖設備擁有一支經(jīng)驗豐富、技術創(chuàng)新的專業(yè)研發(fā)團隊，以高度的專注和執(zhí)著為客戶提供制冷劑廠家直銷，冷凍油廠家直銷，壓縮機批發(fā)銷售，制冷配件批發(fā)銷售。冰仆冷暖設備致力于把技術上的創(chuàng)新展現(xiàn)成對用戶產(chǎn)品上的貼心，為用戶帶來良好體驗。冰仆冷暖設備始終關注化工市場，以敏銳的市場洞察力，實現(xiàn)與客戶的成長共贏。</p></p><br /><p>文章來源地址: http://m.cdcfah.com/cp/2724536.html</p></div></div></div></div></div><div id="yxjgnjv" class="page-right twoColRt"><div id="zjqsp88" class="box01 margin10 clearfix"><h3><a href="http://m.cdcfah.com/cp/">猜你喜歡</a></h3><div id="g7m2ymd" class="recomPic likePro"><a href="http://m.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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