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href="http://www.cdcfah.com/cp/third-tlzjdy_qttlzjrh/">其他涂料助劑</a>?杭州冰龍制冷劑價格上海冰仆冷暖設備供應</p><div id="qizotuu" class="leftbox clearfix"><h1>杭州冰龍制冷劑價格上海冰仆冷暖設備供應</h1><div id="86e5nq0" class="proBig"><div id="ldbjd31" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/bingpu/637401016077271079/4530490.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="gyo0clt" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/bingpu/637401016077271079/4530490.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="8scmqwh" 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>杭州冰龍制冷劑價格,制冷劑</p><p><span>***更新：</span>2021-01-11 07:23:38</p><p><span id="click" >瀏覽次數：1次</span></p><a rel="nofollow" class="button">聯系我們</a></div></div><div id="dat3pmr" 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="rudt3ad" class="page-proshow02"><p class="title">詳細說明</p><div id="bi8fo6r" 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℃ ，杭州冰龍制冷劑價格，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，破壞臭氧潛能值（ ODP ）：0 ，全球變暖系數值（ 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，杭州冰龍制冷劑價格，在空氣中不可燃，杭州冰龍制冷劑價格，安全類別為A1，是很安全的制冷劑。氨作為制冷劑有刺激性臭味、有毒、可以燃燒和，對銅及銅合金有腐蝕作用。杭州冰龍制冷劑價格</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="杭州冰龍制冷劑價格,制冷劑" src="https://tyunfile.71360.com/UploadFile/bingpu/637401016077271079/4530490.png"></div><p style="text-indent:25px">應用非共沸混合工質單級壓縮可得到很低的蒸發(fā)溫度，且可增加制冷量，減少功耗。它的性質直接關系到制冷裝置的制冷效果、經濟性、安全性及運行管理，因而對制冷劑性質要求的了解是不容忽視的。十九世紀中葉出現了機械制冷。雅各布.帕金斯（Jacob Perkins）在1834年建造了首臺實用機器。它用做制冷劑，是一種蒸氣壓縮系統(tǒng)。二氧化碳(CO2) 和氨(NH3)分別在1866年和1873年首先被用作制冷劑。其他化學制品包括化學氰（石油醚和石腦油）、二氧化硫(R-764)和甲醚，曾被作為蒸氣壓縮用制冷劑。其應用限于工業(yè)過程。杭州冰龍制冷劑價格R134a對鋼、鐵、銅、鋁等金屬未發(fā)現有相互制冷劑化學反應的現象，*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="杭州冰龍制冷劑價格,制冷劑" src="https://tyunfile.71360.com/UploadFile/bingpu/637401017458432956/1113027.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?；旌瞎卜兄评鋭┰诳諝饫淠那疤嵯?，蒸發(fā)溫度可以達到-150度左右。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="杭州冰龍制冷劑價格,制冷劑" src="https://tyunfile.71360.com/UploadFile/bingpu/637401016651128323/956971.png"></div><p style="text-indent:25px">R-142b（一氯二氟乙烷）制冷劑物化性質：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。產品包裝：鋼瓶包裝，13.6kg/瓶，400kg/瓶，800kg/瓶。 R-402A 制冷劑物化性質：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、制冷空調工程師協會（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。產品包裝：鋼瓶包裝，11.8kg/瓶。制冷劑分類：無機化合物、有機化合物、混合工質。江蘇常用制冷劑工廠</p><p style="text-indent:25px">碳氫制冷劑屬于天然工質，因此對大氣無污染、對臭氧層無破壞和溫室效應幾乎為零。杭州冰龍制冷劑價格</p><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。杭州冰龍制冷劑價格</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，是一家集研發(fā)、設計、生產和銷售為一體的專業(yè)化公司。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。冰仆冷暖設備致力于把技術上的創(chuàng)新展現成對用戶產品上的貼心，為用戶帶來良好體驗。冰仆冷暖設備創(chuàng)始人徐佳華，始終關注客戶，創(chuàng)新科技，竭誠為客戶提供良好的服務。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2798860.html</p></div></div></div></div></div><div id="grpir3l" class="page-right twoColRt"><div id="sz8zhre" 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