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src="https://tyunfile.71360.com/UploadFile/bingpu/637401017196938816/319685.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="kj7tvhz" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/bingpu/637401017196938816/319685.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="hwyk2qc" 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>浙江東岳制冷劑費用,制冷劑</p><p><span>***更新：</span>2020-12-08 04:20:50</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="cldpw78" 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="rfmtke3" class="page-proshow02"><p class="title">詳細說明</p><div id="kj8yvmi" class="box"><p><p style="text-indent:25px">新的解決方案是開發(fā)HFC族，來擔當制冷劑的主要角色。HCFC族作為過渡方案繼續(xù)使用并將逐漸淘汰。在1990年代，浙江東岳制冷劑費用，全球變暖對地球生命構(gòu)成了新的威脅。雖然全球變暖的因素很多，但因為空調(diào)和制冷耗能巨大（美國建筑物耗能約占總能耗的1/3），且許多制冷劑本身就是溫室氣體，制冷劑又被列入了討論范圍。雖然ASHRAE標準34把許多物質(zhì)分類為制冷劑，但只有少部分用于商業(yè)空調(diào)。1985年2月英國南極考察隊隊長發(fā)曼（J，浙江東岳制冷劑費用.Farman)首先報道，從1977年起就發(fā)現(xiàn)南極洲上空的臭氧總量在每年9月下旬開始迅速減少一半左右，浙江東岳制冷劑費用，形成“臭氧洞”持續(xù)到11月逐漸恢復，引起世界性的震驚。要求制冷劑在高溫下具有良好的化學穩(wěn)定性，保證在較高工作溫度下工質(zhì)不發(fā)生分解。浙江東岳制冷劑費用</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="浙江東岳制冷劑費用,制冷劑" src="https://tyunfile.71360.com/UploadFile/bingpu/637401017196938816/319685.png"></div><p style="text-indent:25px">常用制冷劑性質(zhì)：（1）氨：標準蒸發(fā)溫度為-33.4℃，凝固溫度為-77.7℃，壓力適中，單位容積制冷量大，流動阻力小，熱導率大。價格低廉對大氣臭氧層無破壞作用，故被較廣應用在蒸發(fā)溫度-65℃以上的大中型制冷機中。缺點是毒性較大，可燃，可爆，有強烈刺激性臭味，等熵指數(shù)較大，對鋅銅有腐蝕作用。（2）氟利昂：重點分析熱水器發(fā)文時常用的，1）R22：對大氣臭氧層有輕微破壞作用，并產(chǎn)生溫室效應，被列為第二批限用禁用的制冷劑。我國將在2040年1月1日起禁止生產(chǎn)和使用。R22是應用較較廣的中溫制冷劑，沸點-40.8℃，凝固點-160℃，無色，氣味弱，不燃燒，不，屬安全制冷劑。它與潤滑油部分互溶，需采取回油措施。浙江東岳制冷劑費用制冷劑需具有優(yōu)良的熱力學特性，以便能在給定的溫度區(qū)域內(nèi)運行時有較高的循環(huán)效率。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="浙江東岳制冷劑費用,制冷劑" src="https://tyunfile.71360.com/UploadFile/bingpu/637401017223013032/838961.png"></div><p style="text-indent:25px">R-22（二氟一氯甲烷）制冷劑物化性質(zhì)：R22( Freon22，二氟一氯甲烷 Chlorodifuoromethane)，分子式CHClF2，分子量86.47。R-22在常溫下為無色，近似無味的氣體，不燃燒、無腐蝕、毒性極微，加壓可液化為無色透明的液體，為 HCFC 型制冷劑。主要用途：氟利昂-22 ，分子式：CHClF2，分子量：86.47。R-22較廣用于家用空調(diào)、中央空調(diào)和其它商業(yè)制冷設備；也可用作聚四氟乙烯樹脂的原料和滅火劑1121的中間體。產(chǎn)品包裝：鋼瓶包裝，凈重13.6kg/瓶、22.7kg/瓶、400kg/瓶、1000kg/瓶、ISO TANK。 R-123（二氯三氟乙烷）制冷劑物化性質(zhì)：三氟二氯乙烷（2,2－二氯化－1,1,1－三氟乙烷），分子式CF3CHCl2，分子量152.93，沸點 27.85 ℃，CAS注冊號：306－83－2 ，臭氧層消耗（ODP）0.02，全球變暖潛值（GWP）93，是一種替代R-11（F11）的HCFC型制冷劑。主要用途：R123 可替代 F-11 和 F-113 作清潔劑、發(fā)泡劑和制冷劑（中央空調(diào)/離心式冷水機組）。產(chǎn)品包裝：鋼桶包裝，250kg/桶。</p><p style="text-indent:25px">液氨制冷劑透明無色，氨蒸氣無色，有強烈的刺激臭味。氨對人體有較大的毒性，當氨液飛濺到皮膚上時會引起凍著。當空氣中氨蒸氣的容積達到0.5-0.6%時可引起。故機房內(nèi)空氣中氨的濃度不得超過0.02mg/L。氨在常溫下不易燃燒，加熱至350℃時，分解為氮和氫氣，氫氣與空氣中的氧氣混合后會發(fā)生。與空氣混合的體積分數(shù)在11%-14%時即可燃燒。在16%-25%時遇明火可能。在0.5%-0.6%時，人在其中停留半小時就會中毒。氨極溶于水，0℃時每升水能溶解130升氨氣。一般規(guī)定液氨中含水量低于0.2%。R410A 是一種不含氯的氟代烷非共沸混合制冷劑。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="浙江東岳制冷劑費用,制冷劑" src="https://tyunfile.71360.com/UploadFile/bingpu/637401016697905704/2303191.png"></div><p style="text-indent:25px">R-142b（一氯二氟乙烷）制冷劑物化性質(zhì)：一氯二氟乙烷CClF2CH3，HCFC-142b，沸點-9.2℃，臨界溫度136.45℃，臨界壓力4.15MPa，在常溫下為無色氣體，略有芳香味，易溶于油，難溶于水。主要用途：HCFC-142b（R-142b）主要用作高溫環(huán)境下的制冷系統(tǒng)，恒溫控制開關及航空推進劑的中間體，還用作化工原料。產(chǎn)品包裝：鋼瓶包裝，13.6kg/瓶，400kg/瓶，800kg/瓶。 R-402A 制冷劑物化性質(zhì)：R-402A組成：R-22、R-290及HFC-125，是HCFC服務型混配制冷劑。符合美國采暖、制冷空調(diào)工程師協(xié)會（ASHRAE）的 A1 安全等級類別（這是較高的級別，對人身體無害）；符合美國環(huán)保組織 EPA、SNAP 和 UL 的標準。冷凍機油建議使用烷基苯 AB（Alkybenzene）合成油。主要用途：替代R-502用于商用制冷設備及一些交通制冷設施，適用于所有 R-502 可正常運作的環(huán)境。產(chǎn)品包裝：鋼瓶包裝，12.2kg/瓶。主要用途：替代R-502用于大型商用制冷設備，如制冰機等。適用于所有 R-502 可正常運作的環(huán)境。產(chǎn)品包裝：鋼瓶包裝，11.8kg/瓶。R134a對鋼、鐵、銅、鋁等金屬未發(fā)現(xiàn)有相互制冷劑化學反應的現(xiàn)象，*對鋅有輕微的作用。浙江東岳制冷劑費用</p><p style="text-indent:25px">非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。浙江東岳制冷劑費用</p><p style="text-indent:25px">冰箱如果其它方面都正常運行但是卻不制冷很有可能就是缺乏制冷劑了，冰箱的制冷劑是實現(xiàn)制冷的基礎，如果想要讓冰箱重新發(fā)揮制冷作用，就需要添加制冷劑，現(xiàn)在咱們就來給大家講解一下冰箱制冷劑吧。制冷劑應該怎么添加呢？冰箱添加制冷劑必須熟悉冰箱的結(jié)構(gòu)，如果熟悉了冰箱的結(jié)構(gòu)就可以輕松的給冰箱添加制冷劑了。首先是切斷電源，讓冰箱的全部系統(tǒng)停下來，過一段時間之后再進行下一步，防止意外的發(fā)生。然后就是連接系統(tǒng)的時候注意先關閉高低壓閥門，再把系統(tǒng)高低壓連接并且鎖緊，接上注上接口連接真空泵之后就可以進行系統(tǒng)抽真空了步驟了。浙江東岳制冷劑費用</p><p style="text-indent:25px">上海冰仆冷暖設備有限公司致力于化工，是一家貿(mào)易型公司。冰仆冷暖設備致力于為客戶提供良好的制冷劑廠家直銷，冷凍油廠家直銷，壓縮機批發(fā)銷售，制冷配件批發(fā)銷售，一切以用戶需求為中心，深受廣大客戶的歡迎。公司將不斷增強企業(yè)重點競爭力，努力學習行業(yè)知識，遵守行業(yè)規(guī)范，植根于化工行業(yè)的發(fā)展。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/2313059.html</p></div></div></div></div></div><div id="zoldpwn" class="page-right twoColRt"><div id="x39froa" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="fpryfwy" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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