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href="http://m.cdcfah.com/cp/first-_jxhxp/">精細(xì)化學(xué)品</a>?<a href="http://m.cdcfah.com/cp/second-jxhxp_tlzjdy/">涂料助劑</a>?<a href="http://m.cdcfah.com/cp/third-tlzjdy_qttlzjrh/">其他涂料助劑</a>?大金制冷劑報(bào)價(jià) 上海冰仆冷暖設(shè)備供應(yīng)</p><div id="uyqsurj" class="leftbox clearfix"><h1>大金制冷劑報(bào)價(jià) 上海冰仆冷暖設(shè)備供應(yīng)</h1><div id="8jgskmo" class="proBig"><div id="mgnpbnk" 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="8krtlxe" 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="j8dxi7d" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價(jià)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>大金制冷劑報(bào)價(jià),制冷劑</p><p><span>***更新：</span>2020-12-03 00:35:16</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="lxjl33z" 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(huà): </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(hào)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="mg2bdk3" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="38spri8" class="box"><p><p style="text-indent:25px">氟利昂和烷氫類(lèi)制冷劑：烷氫類(lèi)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(chēng)，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(xiě)。下面列舉幾種編號(hào)：名稱(chēng)分子式m,n,x,z值編號(hào)；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，大金制冷劑報(bào)價(jià),x=3,z=1R13B1；丙烷C3H8m=3，大金制冷劑報(bào)價(jià),n=8,x=0,z=0R290，大金制冷劑報(bào)價(jià)?；旌现评鋭??；旌现评鋭┮垣@取命名的順序編號(hào)的；共沸混合制冷劑編號(hào)為R5，從R500開(kāi)始R501,R502等。非共沸混合制冷劑編號(hào)為R4，從R401，R404，R410等。同素異構(gòu)體加注小寫(xiě)數(shù)字母，如CHF2-CHF2R134,CF3-CH2FR134a。碳?xì)渲评鋭儆谔烊还べ|(zhì)，因此對(duì)大氣無(wú)污染、對(duì)臭氧層無(wú)破壞和溫室效應(yīng)幾乎為零。大金制冷劑報(bào)價(jià)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="大金制冷劑報(bào)價(jià),制冷劑" src="https://tyunfile.71360.com/UploadFile/bingpu/637401016747866928/2112113.png"></div><p style="text-indent:25px">制冷劑，又稱(chēng)制冷工質(zhì)，在南方一些地區(qū)俗稱(chēng)雪種，是一種在制冷系統(tǒng)中不斷循環(huán)并通過(guò)其本身的狀態(tài)變化以實(shí)現(xiàn)制冷的工作物質(zhì)。制冷劑在蒸發(fā)器內(nèi)吸收被冷卻介質(zhì)（水或空氣等）的熱量而汽化，在冷凝器中將熱量傳遞給周?chē)諝饣蛩淠?。制冷機(jī)中完成熱力循環(huán)的工質(zhì)。它在低溫下吸取被冷卻物體的熱量，然后在較高溫度下轉(zhuǎn)移給冷卻水或空氣。在蒸氣壓縮式制冷機(jī)中，使用在常溫或較低溫度下能液化的工質(zhì)為制冷劑，如氟利昂（飽和碳?xì)浠衔锏姆⒙?、溴衍生物），共沸混合工質(zhì)（由兩種氟利昂按一定比例混合而成的共沸溶液）、碳?xì)浠衔铮ū?、乙烯等）、氨等；大金制冷劑?bào)價(jià)制冷劑需具有優(yōu)良的熱力學(xué)特性，以便能在給定的溫度區(qū)域內(nèi)運(yùn)行時(shí)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="大金制冷劑報(bào)價(jià),制冷劑" src="https://tyunfile.71360.com/UploadFile/bingpu/637401016110366930/9149962.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(shè)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(dá)到傳遞制冷量的目的。在鹽水制冰、冰蓄冷系統(tǒng)、集中空調(diào)等需要采用間接冷卻方法的運(yùn)作過(guò)程中，需使用載冷劑來(lái)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(lái)冷卻被冷卻物質(zhì)，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(yùn)載冷量的作用，故又稱(chēng)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(wèn)題。載冷劑與載冷劑循環(huán)特點(diǎn)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(zhì)。這種中間冷卻介質(zhì)也稱(chēng)為第二制冷劑。</p><p style="text-indent:25px">C02制冷劑：綠色環(huán)保天然工質(zhì)C02以其無(wú)毒，對(duì)臭氧層與影響，不產(chǎn)生溫室效應(yīng)和良好的熱力學(xué)性質(zhì)等優(yōu)點(diǎn)，再度受到人們的重視。此外，C02給臨界環(huán)境系統(tǒng)所具有的較高的排氣溫度和氣體冷卻器較大的溫度滑移。它在熱泵熱水器領(lǐng)域具有其他工質(zhì)無(wú)法比擬的優(yōu)勢(shì)。主要優(yōu)勢(shì)：①無(wú)毒，不可燃。具有很好的安全性。消耗臭氧潛能值ODP=0，全球變暖潛能值GWP=1，有著良好的的經(jīng)濟(jì)性，而不存在回收問(wèn)題，具有環(huán)境友好性。②物理化學(xué)性能穩(wěn)定。與潤(rùn)滑油共溶性良好。粘度很低，這樣可以提高流速，壓降不會(huì)太大，改善傳熱，進(jìn)一步減小部件尺寸和系統(tǒng)重量。R12是我國(guó)中小型制冷裝置中使用較為較廣的中壓中溫制冷劑。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="大金制冷劑報(bào)價(jià),制冷劑" src="https://tyunfile.71360.com/UploadFile/bingpu/637401016125034588/8406768.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(shí)必須注意，加注時(shí)不可開(kāi)啟壓縮機(jī)(發(fā)動(dòng)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(dòng)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(kāi)制冷劑罐開(kāi)啟閥，再擰開(kāi)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(kāi)高壓側(cè)手動(dòng)閥至全開(kāi)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(dòng)閥，然后將儀表卸下。從高壓側(cè)向系統(tǒng)加注制冷劑時(shí)，發(fā)動(dòng)機(jī)處于不起動(dòng)狀態(tài)(壓縮機(jī)停轉(zhuǎn))，不要擰開(kāi)歧管壓力計(jì)上的低壓手動(dòng)閥，以防產(chǎn)生液壓沖擊。氨作為制冷劑易于獲得、價(jià)格低廉、壓力適中、單位制冷量大、放熱系數(shù)高。大金制冷劑報(bào)價(jià)</p><p style="text-indent:25px">制冷劑應(yīng)無(wú)毒、無(wú)刺激性、無(wú)燃燒性及性。大金制冷劑報(bào)價(jià)</p><p style="text-indent:25px">R134a的化學(xué)穩(wěn)定性很好，然而由于它的溶水性比R22高，所以對(duì)制冷系統(tǒng)不利，即使有少量水分存在，在潤(rùn)滑油等的作用下，將會(huì)產(chǎn)生酸、二氧化碳或一氧化碳，將對(duì)金屬產(chǎn)生腐蝕作用，或產(chǎn)生“鍍銅”作用，所以R134a對(duì)系統(tǒng)的干燥和清潔要求更高。R134a對(duì)鋼、鐵、銅、鋁等金屬未發(fā)現(xiàn)有相互制冷劑化學(xué)反應(yīng)的現(xiàn)象，*對(duì)鋅有輕微的作用。R134a 是目前國(guó)際公認(rèn)的替代 CFC-12 的主要制冷工質(zhì)之一，常用于車(chē)用空調(diào)，商業(yè)和工業(yè)用制冷系統(tǒng)，以及作為發(fā)泡劑用于硬塑料保溫材料生產(chǎn)，也可以用來(lái)配置其他混合致冷劑，如 R 404a 和 R 407c 等。大金制冷劑報(bào)價(jià)</p><p style="text-indent:25px">上海冰仆冷暖設(shè)備有限公司是一家銷(xiāo)售:制拎設(shè)備、化工產(chǎn)品(除危險(xiǎn)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(chē)配件，機(jī)械配件、五金電器、焊接工具。銷(xiāo)售:制拎設(shè)備、化工產(chǎn)品(除危險(xiǎn)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(chē)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(chéng)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(hù)的需求為向?qū)?，為客?hù)提供***的制冷劑廠家直銷(xiāo)，冷凍油廠家直銷(xiāo)，壓縮機(jī)批發(fā)銷(xiāo)售，制冷配件批發(fā)銷(xiāo)售。冰仆冷暖設(shè)備致力于把技術(shù)上的創(chuàng)新展現(xiàn)成對(duì)用戶(hù)產(chǎn)品上的貼心，為用戶(hù)帶來(lái)良好體驗(yàn)。冰仆冷暖設(shè)備始終關(guān)注自身，在風(fēng)云變化的時(shí)代，對(duì)自身的建設(shè)毫不懈怠，高度的專(zhuān)注與執(zhí)著使冰仆冷暖設(shè)備在行業(yè)的從容而自信。</p></p><br /><p>文章來(lái)源地址: http://m.cdcfah.com/cp/2238739.html</p></div></div></div></div></div><div id="fjbip83" class="page-right twoColRt"><div id="poqnu3n" class="box01 margin10 clearfix"><h3><a href="http://m.cdcfah.com/cp/">猜你喜歡</a></h3><div id="smjv3ev" class="recomPic likePro"><a 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