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href="http://www.cdcfah.com/zh/"><span>展會信息</span></a></li></ul></div></nav><section class="wrap clearfix"><section class="container clearfix tcPro"><section class="home-main container clearfix"><div id="pd7r73t" class="twoCol"><div id="xvbr5vz" class="page-proshow clearfix"><p class="current"> 當前位置:<a href="http://www.cdcfah.com/">首頁?<a href="http://www.cdcfah.com/cp/">產品供應</a>?<a href="http://www.cdcfah.com/cp/first-_jxhxp/">精細化學品</a>?<a href="http://www.cdcfah.com/cp/second-jxhxp_tlzjdy/">涂料助劑</a>?<a href="http://www.cdcfah.com/cp/third-tlzjdy_qttlzjrh/">其他涂料助劑</a>?大金制冷劑企業(yè) 上海冰仆冷暖設備供應</p><div id="pxfvd7z" class="leftbox clearfix"><h1>大金制冷劑企業(yè) 上海冰仆冷暖設備供應</h1><div id="zf9bzfb" class="proBig"><div id="hfnbzdt" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/bingpu/637401016747866928/2112113.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="nljrzfv" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/bingpu/637401016747866928/2112113.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="9fl9hpv" 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>產品關鍵詞：</span>大金制冷劑企業(yè),制冷劑</p><p><span>***更新：</span>2020-12-15 04:25:36</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="7b7lzxv" 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="9p57b79" class="page-proshow02"><p class="title">詳細說明</p><div id="r77tpnl" class="box"><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《蒙特利爾議定書》，2010年發(fā)達的各國的低端制冷劑（如R22）產能已基本關停，大金制冷劑企業(yè)，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，大金制冷劑企業(yè)。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商來說也是一個利好，大金制冷劑企業(yè)。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。大金制冷劑企業(yè)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="大金制冷劑企業(yè),制冷劑" src="https://tyunfile.71360.com/UploadFile/bingpu/637401016747866928/2112113.png"></div><p style="text-indent:25px">制冷劑飽和蒸氣的溫度與壓力呈對應關系，若已知制冷劑的蒸發(fā)溫度即可查出相對應的蒸發(fā)壓力。此壓力的表壓值由高、低壓壓力表顯示出來。因此，根據安裝在系統(tǒng)上壓力表的壓力值即可判斷制冷劑的充注量是否宜適。例如：空調器的蒸發(fā)溫度為7.2℃，冷凝溫度為54.5℃使用R22。查R22的飽和溫度與飽和壓力對應表，以確定其蒸發(fā)壓力值和冷凝壓力值。查表可知：R22在7.2℃時相應相對壓力值為0.53Mpa(5.3kg/cm2)和54.5℃時的相應相對壓力值為2.11Mpa(21.1kg/cm2)，將此壓力換算為表壓值即可。用高、低壓壓力表或復合式壓力表測試充氟中的制冷系統(tǒng)，若高、低壓力表表壓值符合上述范圍即表明制冷劑的充注量合適;若高、低壓壓力均低則表明充入量不夠;若高、低壓壓力均高，則表明充入量過多。壓力測定法較為簡便，在維修時經常作用，但是缺點是比較粗，準確度不高。梅蘭制冷劑企業(yè)制冷劑的主要技術指標有飽和蒸氣壓強、比熱、粘度、導熱系數(shù)、表面張力等。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="大金制冷劑企業(yè),制冷劑" src="https://tyunfile.71360.com/UploadFile/bingpu/637401017527466302/6732698.png"></div><p style="text-indent:25px">根據對國內外大中型冷庫制冷劑使用情況的調研，分析了大中型冷庫制冷劑的現(xiàn)狀。根據國際上較新的文獻，評論了冷庫制冷劑應用的發(fā)展新動向。結果表明：在國內外大中型冷庫中，目前采用氨制冷劑是主流，今后氨仍然將是主要制冷劑。在蒸發(fā)溫度-35℃以上，壓縮式制冷采用氨制冷劑是較節(jié)能的。采用氨制冷劑的關鍵問題是安全問題。在制冷劑的發(fā)展動向中，CO2系統(tǒng)成為新一代制冷劑關注的重點，CO2/NH3復疊式制冷系統(tǒng)具有較大的發(fā)展?jié)摿?。在間接制冷系統(tǒng)中，采用氨水替代乙二醇作為載冷劑，可以使系統(tǒng)能耗明顯降低。</p><p style="text-indent:25px">R142b制冷劑，沸點較高-9.25℃.凝固點-130.8℃較大特點是在很高的冷凝溫度下，冷凝壓力并不高。如80℃時只有1.35Mpa，因此它適合在熱泵裝置和高環(huán)境溫度下使用。對大氣臭氧層有微弱的破壞作用，也將在2040年禁用。R134a，沸點-26.5℃，凝固點-101℃，無色，無味，不燃，不爆，但與礦物性潤滑油不相溶，必須采用聚脂類合成油（如聚烯烴乙二醇），與丁腈橡膠不相溶，故密封件須改為聚丁腈橡膠，吸水性較強，易與水反映生成酸，腐蝕管絡及壓縮機，對系統(tǒng)干燥度要求更高，系統(tǒng)中的干燥劑要換成XH-7或XH-9分子篩。壓縮機電機線圈絕緣材料必須加強絕緣等級，是一種不太成熟的制冷劑。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。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="大金制冷劑企業(yè),制冷劑" src="https://tyunfile.71360.com/UploadFile/bingpu/637401016658657708/9147051.png"></div><p style="text-indent:25px">制冷劑需有良好的電氣絕緣性。經濟性，要求工質低廉，易于獲得。環(huán)保性，要求工質的臭氧消耗潛能值（ODP）與全球變暖潛能值（GWP）盡可能小，以減小對大氣臭氧層的破壞及引起全球氣候變暖。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，在氣化或液化過程中，蒸汽成分與溶液成分始終保持相同；在既定壓力下，發(fā)生相變時對應的溫度保持不變。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。在定壓下氣化或液化過程中，蒸汽成分與溶液成分不斷變化，對應的溫度也不斷變化。在蒸氣壓縮式制冷機中，使用在常溫或較低溫度下能液化的工質為制冷劑。梅蘭制冷劑企業(yè)</p><p style="text-indent:25px">制冷劑，又稱制冷工質。大金制冷劑企業(yè)</p><p style="text-indent:25px">R-134a制冷劑應用領域包括：冰箱、冷柜、飲水機、汽車空調、中央空調、除濕機、冷庫、商業(yè)制冷、冰水機、冰淇淋機、冷凍冷凝機組等制冷設備中，同時還可應用于氣霧推進劑、醫(yī)用氣霧劑、殺蟲藥拋射劑、聚合物（塑料）物理發(fā)泡劑，以及鎂合金保護氣體等。雖然R134a制冷劑是新裝制冷設備上替代氟利昂R12較普遍的選擇，但是由于R134a與R12物化性能、理論循環(huán)性能以及壓縮機用油等均不相同，因此對于初裝為R12制冷劑的制冷設備的售后維修，如果需要再添加或更換制冷劑，仍然只能添加R12，通常不能直接以R134a替代R12（也就是說通常不可以進行換血式的替換）。大金制冷劑企業(yè)</p><p style="text-indent:25px">上海冰仆冷暖設備有限公司位于美丹路222號629室。公司業(yè)務涵蓋制冷劑廠家直銷，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，價格合理，品質有保證。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: 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