上海科慕R404A哪家好上海冰仆冷暖設(shè)備供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="冰箱如果其它方面都正常運(yùn)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(shí)現(xiàn)制冷的基礎(chǔ)，上?？颇絉404A哪家好，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(yīng)該怎么添加呢？冰箱添加"><meta name="keywords" content="上?？颇絉404A哪家好,制冷劑"><link rel="canonical" href="http://www.cdcfah.com/"/><meta name="applicable-device" content="pc"><link rel="shortcut icon" href="/static/new_net_01/images/favicon.ico"><link rel="stylesheet" href="/static/new_net_01/css/slick.css" /><link rel="stylesheet" href="/static/new_net_01/css/addnew.css"><link rel="stylesheet" href="/static/new_net_01/css/sidenav.css"><link rel="stylesheet" href="/static/new_net_01/css/style.css" /><link rel="stylesheet" href="/static/new_net_01/css/tab.css"><link rel="stylesheet" href="/static/new_net_01/css/404.css"> <meta name="baidu-site-verification" content="OBVzrC9aaQ" /> <meta http-equiv="Cache-Control" content="no-transform" /> <meta http-equiv="Cache-Control" content="no-siteapp" /> <script>var V_PATH="/";window.onerror=function(){ return true; };</script> </head><body> <h1><a href="http://www.cdcfah.com/">六月丁香婷婷亚洲中文字幕,欧美精品高清一区二区蜜芽,尤物92午夜福利视频,精品视频一区二区三区在线观看</a></h1> <div style="position:fixed;left:-9000px;top:-9000px;"><object id="qgqbi"></object><delect id="qgqbi"><sub id="qgqbi"><dl id="qgqbi"></dl></sub></delect><track id="qgqbi"></track><tr id="qgqbi"></tr><video id="qgqbi"></video><xmp id="qgqbi"><span id="qgqbi"></span></xmp><span id="qgqbi"></span><strong id="qgqbi"><em id="qgqbi"><sup id="qgqbi"><progress id="qgqbi"></progress></sup></em></strong><dl id="qgqbi"><small id="qgqbi"></small></dl><wbr id="qgqbi"></wbr><noscript id="qgqbi"></noscript><tr id="qgqbi"></tr><track id="qgqbi"><dl id="qgqbi"></dl></track><label id="qgqbi"><em id="qgqbi"></em></label><tbody id="qgqbi"></tbody><blockquote id="qgqbi"></blockquote><dfn id="qgqbi"><center id="qgqbi"></center></dfn><sub id="qgqbi"></sub><u 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src="https://tyunfile.71360.com/UploadFile/bingpu/637401017250659526/928915.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="vegyvcu" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/bingpu/637401017250659526/928915.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="9eq3ubi" 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>上?？颇絉404A哪家好,制冷劑</p><p><span>***更新：</span>2021-01-27 00:26:59</p><p><span id="click" >瀏覽次數(shù)：2次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="ptl43t3" 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="yg3lik3" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="j73q8m4" class="box"><p><p style="text-indent:25px">冰箱如果其它方面都正常運(yùn)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(shí)現(xiàn)制冷的基礎(chǔ)，上?？颇絉404A哪家好，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(yīng)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，上海科慕R404A哪家好，上?？颇絉404A哪家好，讓冰箱的全部系統(tǒng)停下來，過一段時(shí)間之后再進(jìn)行下一步，防止意外的發(fā)生。然后就是連接系統(tǒng)的時(shí)候注意先關(guān)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(jìn)行系統(tǒng)抽真空了步驟了。制冷劑在南方一些地區(qū)俗稱雪種。上?？颇絉404A哪家好</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上?？颇絉404A哪家好,制冷劑" src="https://tyunfile.71360.com/UploadFile/bingpu/637401017250659526/928915.png"></div><p style="text-indent:25px">制冷劑的排放一般指直接把制冷劑排放到空氣中，排放時(shí)，周圍環(huán)境一定要通風(fēng)良好，不能接近明火，否則要產(chǎn)生有毒氣體。1，關(guān)閉歧管壓力計(jì)上的高，低壓手動(dòng)閥，連接其高，低壓軟管分別接在壓縮機(jī)高，低壓檢修閥上，中間管的自由端放在工作擦布上。2，慢慢打開高壓手動(dòng)閥，讓制冷劑從中間軟管上排出，閥門不能開得太大，否則壓縮機(jī)內(nèi)的冷凍潤滑油會隨制冷劑替代。3，當(dāng)壓力表讀數(shù)降到0.35MPa以下時(shí)，再慢慢打開手動(dòng)閥，使制冷劑從高，低壓雙向同時(shí)排出。4，觀察壓力表讀數(shù)，隨著壓力下降，逐漸開大高，低壓手動(dòng)閥，直至高，低壓表的讀數(shù)指示為零。上?？颇絉134a多少錢用于食品工業(yè)和空調(diào)制冷的制冷劑*十多種。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上?？颇絉404A哪家好,制冷劑" src="https://tyunfile.71360.com/UploadFile/bingpu/637401016630073583/4612161.png"></div><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。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?。混合制冷劑以獲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。</p><p style="text-indent:25px">氨的比重和粘度小，放熱系數(shù)高，價(jià)格便宜，易于獲得。但是，氨有較強(qiáng)的毒性和可燃性。若以容積計(jì)，當(dāng)空氣中氨的含量達(dá)到0.5%～0.6%時(shí)，人在其中停留半個(gè)小時(shí)即可中毒，達(dá)到11%～13%時(shí)即可點(diǎn)燃，達(dá)到16%時(shí)遇明火就會。因此，氨制冷機(jī)房必須注意通風(fēng)排氣，并需經(jīng)常冰箱排除系統(tǒng)中的空氣及其它不凝性氣體?？偵纤觯弊鳛橹评鋭┑膬?yōu)點(diǎn)是：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、幾乎不溶解于油、流動(dòng)阻力小，泄漏時(shí)易發(fā)現(xiàn)。其缺點(diǎn)是：有刺激性臭味、有毒、可以燃燒和，對銅及銅合金有腐蝕作用。新的解決方案是開發(fā)HFC族，來擔(dān)當(dāng)制冷劑的主要角色。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上?？颇絉404A哪家好,制冷劑" src="https://tyunfile.71360.com/UploadFile/bingpu/637401016151890032/6084926.png"></div><p style="text-indent:25px">根據(jù)對國內(nèi)外大中型冷庫制冷劑使用情況的調(diào)研，分析了大中型冷庫制冷劑的現(xiàn)狀。根據(jù)國際上較新的文獻(xiàn)，評論了冷庫制冷劑應(yīng)用的發(fā)展新動(dòng)向。結(jié)果表明：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。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(guān)鍵問題是安全問題。在制冷劑的發(fā)展動(dòng)向中，CO2系統(tǒng)成為新一代制冷劑關(guān)注的重點(diǎn)，CO2/NH3復(fù)疊式制冷系統(tǒng)具有較大的發(fā)展?jié)摿ΑＴ陂g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**冷劑與潤滑油需有良好互溶性。上海科慕R404A哪家好</p><p style="text-indent:25px">其他化學(xué)制品包括化學(xué)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。上海科慕R404A哪家好</p><p style="text-indent:25px">混合共沸制冷劑，目前尚不公開配方，用在復(fù)疊式制冷機(jī)中，在空氣冷凝的前提下，蒸發(fā)溫度可以達(dá)到-150度左右。碳?xì)渲评鋭┲饕枪?jié)能和環(huán)保這兩大優(yōu)點(diǎn)；節(jié)能方面：用R433b的空調(diào)要比用R134,R22的空調(diào)節(jié)省能耗15%至35%左右。環(huán)保方面：碳?xì)渲评鋭儆谔烊还べ|(zhì)，因此對大氣無污染、對臭氧層無破壞和溫室效應(yīng)幾乎為零。按成分有以下幾種。（1）無機(jī)化合物。水、氨、二氧化碳等。（2）飽和碳?xì)浠衔锏难苌铮追Q氟利昂。主要是甲烷和乙烷的衍生物。如R12,R22,R134a等。（3）飽合碳?xì)浠衔铩Ｈ绫?，異丁烷等。?）不飽和碳?xì)浠衔?。如乙烯，丙烯等。?）共沸混合制冷劑。如R502等。（6）非共沸混合制冷劑。如R407c，R410等。上?？颇絉404A哪家好</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(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(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)。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(jī)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(shè)備繼續(xù)堅(jiān)定不移地走高質(zhì)量發(fā)展道路，既要實(shí)現(xiàn)基本面穩(wěn)定增長，又要聚焦關(guān)鍵領(lǐng)域，實(shí)現(xiàn)轉(zhuǎn)型再突破。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/3023390.html</p></div></div></div></div></div><div id="icztpwo" class="page-right twoColRt"><div id="rg7h4bl" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="g3gfrda" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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