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class="container clearfix tcPro"><section class="home-main container clearfix"><div id="8aheuga" class="twoCol"><div id="elxuwda" class="page-proshow clearfix"><p class="current"> 當(dāng)前位置:<a href="http://www.cdcfah.com/">首頁?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://www.cdcfah.com/cp/first-_jxhxp/">精細(xì)化學(xué)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>?杭州巨化制冷劑上海冰仆冷暖設(shè)備供應(yīng)</p><div id="vuheg8z" class="leftbox clearfix"><h1>杭州巨化制冷劑上海冰仆冷暖設(shè)備供應(yīng)</h1><div id="3m2hdpm" class="proBig"><div id="hwogyk7" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/bingpu/637401017163179036/7209251.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="fj3eln2" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/bingpu/637401017163179036/7209251.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="ktqiamo" 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(guān)鍵詞：</span>杭州巨化制冷劑,制冷劑</p><p><span>***更新：</span>2020-12-27 01:21:42</p><p><span id="click" >瀏覽次數(shù)：1次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="peg3qsz" 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(shè)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(jī): </span>1-1</p><p><span>地址: </span>美丹路222號629室</p><p>[當(dāng)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="yxzyfmo" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="zjaszah" 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?xì)浠衔?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(shù)，若（m-1）=0，則“0”略去不寫，杭州巨化制冷劑，杭州巨化制冷劑。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,z=0R123；三氟一溴甲烷CF3Brm=1,n=0,x=3,z=1R13B1；丙烷C3H8m=3,n=8,x=0,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(gòu)體加注小寫數(shù)字母，如CHF2-CHF2R134,CF3-CH2FR134a。R12是一種無色，杭州巨化制冷劑、透明、沒有氣味，幾乎無毒性、不燃燒、不，很安全的制冷劑。杭州巨化制冷劑</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="杭州巨化制冷劑,制冷劑" src="https://tyunfile.71360.com/UploadFile/bingpu/637401017163179036/7209251.png"></div><p style="text-indent:25px">制冷劑高壓端加注，壓縮機(jī)排氣閥(高壓閥)的旁通孔(多用通道)加注，加入的是制冷劑液體。其特點(diǎn)是安全、快速，適用于制冷系統(tǒng)的首先次加注，即經(jīng)檢漏、抽真空后的系統(tǒng)加注。但用該方法時必須注意，加注時不可開啟壓縮機(jī)(發(fā)動機(jī)停轉(zhuǎn))，且制冷劑罐要求倒立。操作步驟：1）、當(dāng)系統(tǒng)抽真空后，關(guān)閉歧管壓力計(jì)上的高、低壓手動閥。2）、將中間軟管的一端與制冷劑罐注入閥的接頭連接，打開制冷劑罐開啟閥，再擰開歧管壓力計(jì)軟管一端的螺母，讓氣體溢出幾分鐘，然后擰緊螺母。3）、擰開高壓側(cè)手動閥至全開位置，將制冷劑罐倒立。4）、從高壓側(cè)注入規(guī)定量的液態(tài)制冷劑。關(guān)閉制冷劑罐注入閥及歧管壓力計(jì)上的高壓手動閥，然后將儀表卸下。從高壓側(cè)向系統(tǒng)加注制冷劑時，發(fā)動機(jī)處于不起動狀態(tài)(壓縮機(jī)停轉(zhuǎn))，不要擰開歧管壓力計(jì)上的低壓手動閥，以防產(chǎn)生液壓沖擊。上海環(huán)保制冷劑一般加多少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。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="杭州巨化制冷劑,制冷劑" src="https://tyunfile.71360.com/UploadFile/bingpu/637401016799224123/4149753.png"></div><p style="text-indent:25px">R-408A 制冷劑的物化性能：R408A制冷劑是由R22, R125, R143a 組成的混配制冷工質(zhì)，在常溫下為無色氣體，分子量 87.01，沸點(diǎn)-44.4℃，臨界溫度 83.8℃，臨界壓力4.42MPa，破壞臭氧潛能值（ODP）0.016。主要用途：R408A制冷劑主要用于替代R502。產(chǎn)品包裝：鋼瓶包裝，10.9kg/瓶。R-409A 制冷劑物化性能：R409A由HCFC-22,HCFC-124和HCFC-142b混合而成，在常溫下為無色氣體。分子量97.4，沸點(diǎn) -34.5℃，臨界溫度106.8℃，臨界壓力4.69MPa，破壞臭氧潛能值（ODP）0.039。主要用途：R409A是R12的替代品，主要用于制冷系統(tǒng)。產(chǎn)品包裝：鋼瓶包裝，13.6kg/瓶。</p><p style="text-indent:25px">我國冷藏企業(yè)中，尤其是中小企業(yè)，許多未配備針對氨制冷劑的防護(hù)設(shè)備，缺乏有關(guān)制冷系統(tǒng)故障的應(yīng)急處理預(yù)案。冷庫安全問題必須引起企業(yè)和管理部門的高度重視。在國內(nèi)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。采用氨制冷劑關(guān)鍵是安全問題，應(yīng)該采取足夠的防護(hù)措施，保證操作人員安全和公共安全。根據(jù)國外**的評估，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。蒸發(fā)溫度在-35℃以下，采用CO2與氨復(fù)疊式制冷，不*可以降低初次投入、提高效率，而且較大減少了系統(tǒng)的充氨量、提高了食品冷加工企業(yè)的安全系數(shù)。R410A制冷劑無色氣體，貯存在鋼瓶內(nèi)是被壓縮的液化氣體。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="杭州巨化制冷劑,制冷劑" src="https://tyunfile.71360.com/UploadFile/bingpu/637401016040376295/9954917.png"></div><p style="text-indent:25px">目前使用的制冷劑已達(dá)70～80種，并正在不斷發(fā)展增多。但用于食品工業(yè)和空調(diào)制冷的*十多種。氨（代號：R717）：氨是目前使用較為較廣的一種中壓中溫制冷劑。氨的凝固溫度為-77.7℃，標(biāo)準(zhǔn)蒸發(fā)溫度為－33.3℃，在常溫下冷凝壓力一般為1.1～1.3MPa，即使當(dāng)夏季冷卻水溫高達(dá)30℃時也絕不可能超過1.5MPa。氨的單位標(biāo)準(zhǔn)容積制冷量大約為520kcal/m3。氨有很好的吸水性，即使在低溫下水也不會從氨液中析出而凍結(jié)，故系統(tǒng)內(nèi)不會發(fā)生“冰塞”現(xiàn)象。氨對鋼鐵不起腐蝕作用，但氨液中含有水分后，對銅及銅合金有腐蝕作用，且使蒸發(fā)溫度稍許提高。要求制冷劑的臭氧消耗潛能值與全球變暖潛能值盡可能小，以減小對大氣臭氧層的破壞及引起全球氣候變暖。杭州巨化制冷劑</p><p style="text-indent:25px">對制冷劑性質(zhì)要求的了解是不容忽視的。杭州巨化制冷劑</p><p style="text-indent:25px">制冷劑飽和蒸氣的溫度與壓力呈對應(yīng)關(guān)系，若已知制冷劑的蒸發(fā)溫度即可查出相對應(yīng)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(jù)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(diào)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(yīng)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(yīng)相對壓力值為0.53Mpa(5.3kg/cm2)和54.5℃時的相應(yīng)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(fù)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(jīng)常作用，但是缺點(diǎn)是比較粗，準(zhǔn)確度不高。杭州巨化制冷劑</p><p style="text-indent:25px">上海冰仆冷暖設(shè)備有限公司是一家銷售:制拎設(shè)備、化工產(chǎn)品(除危險化學(xué)品、監(jiān)控化學(xué)品、煙花爆竹、民用物品、易制毒化學(xué)品)、儀器儀表、汽車配件，機(jī)械配件、五金電器、焊接工具。銷售:制拎設(shè)備、化工產(chǎn)品(除危險化學(xué)品、監(jiān)控化學(xué)品、煙花爆竹、民用物品、易制毒化學(xué)品)、儀器儀表、汽車配件，機(jī)械配件、五金電器、焊接工具。的公司，致力于發(fā)展為創(chuàng)新務(wù)實(shí)、誠實(shí)可信的企業(yè)。冰仆冷暖設(shè)備深耕行業(yè)多年，始終以客戶的需求為向?qū)В瑸榭蛻籼峁?**的制冷劑廠家直銷，冷凍油廠家直銷，壓縮機(jī)批發(fā)銷售，制冷配件批發(fā)銷售。冰仆冷暖設(shè)備不斷開拓創(chuàng)新，追求出色，以技術(shù)為先導(dǎo)，以產(chǎn)品為平臺，以應(yīng)用為重點(diǎn)，以服務(wù)為保證，不斷為客戶創(chuàng)造更高價值，提供更優(yōu)服務(wù)。冰仆冷暖設(shè)備始終關(guān)注化工市場，以敏銳的市場洞察力，實(shí)現(xiàn)與客戶的成長共贏。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2576725.html</p></div></div></div></div></div><div id="f37axjl" class="page-right twoColRt"><div id="n74kmel" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="vfhe3kc" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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