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src="https://tyunfile.71360.com/UploadFile/bingpu/637401018799809902/3009797.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="vp3bcel" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/bingpu/637401018799809902/3009797.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="eynubne" 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>上海CPI4700-100管道,冷凍油</p><p><span>***更新：</span>2021-02-04 06:17:44</p><p><span id="click" >瀏覽次數(shù)：3次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="fugxzq3" 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="yq8l3gy" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="y8duriu" class="box"><p><p style="text-indent:25px">空氣壓縮機(jī)冷凍油的功能和主要性能是什么?答：空壓機(jī)冷凍油主要用于潤滑壓縮機(jī)氣缸和排氣閥的運(yùn)動部件，起到防銹、防腐、密封和冷卻的作用。由于空壓機(jī)始終處于高壓、高溫和冷凝水的環(huán)境中，空壓機(jī)油應(yīng)具有優(yōu)良的高溫氧化安，上海CPI4700-100管道，低積碳傾向、合適的粘度和粘溫性能、良好的油水分離性、防銹性和耐腐蝕性等，上海CPI4700-100管道。合成空氣壓縮機(jī)油的主要類型是什么?與礦物油型相比有什么優(yōu)勢?答：合成壓縮機(jī)油中使用的基礎(chǔ)油主要包括合成烴(聚-烯烴)、有機(jī)酯(二酯)、聚亞烷基二醇、氟硅油和磷酸酯。與礦物油型相比，它們具有高溫穩(wěn)定性好、高溫積碳少、使用溫度寬、傾點(diǎn)低、揮發(fā)性低、使用壽命長等優(yōu)點(diǎn)。但是，上海CPI4700-100管道，由于價格高，它們只能在礦物油型壓縮機(jī)油無法承受的各種惡劣條件下使用。冷凍油在壓縮機(jī)中，冷凍油主要起潤滑、密封、降溫及能量調(diào)節(jié)等功能。上海CPI4700-100管道</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海CPI4700-100管道,冷凍油" src="https://tyunfile.71360.com/UploadFile/bingpu/637401018799809902/3009797.png"></div><p style="text-indent:25px">為保護(hù)臭氧層，國際上對空調(diào)設(shè)備的制冷劑都做了限制，出現(xiàn)了各種替代制冷劑，其冷凍油也相應(yīng)發(fā)生了變化。對空調(diào)替代制冷劑為R134a、R410a/R407c，其替代分別采用PAG、POE。POE是Polyol Ester的縮寫，又稱聚酯油，它是一類合成的多元醇酯類油。PAG是Polyalkylene Glycol的縮寫，是一種合成的聚(乙)二醇類潤滑油。其中，POE油不僅能良好地用于HFC類制冷劑系統(tǒng)中，也能用于烴類制冷。PAG油則可用HFC類、烴類和氨作為制冷劑的制冷系統(tǒng)中的潤滑油。由于使用場合和制冷劑的不同，制冷設(shè)備對冷凍油的選擇也不一樣。太陽3GS一般加多少冷凍油可以減少壓縮機(jī)運(yùn)行摩擦和磨損程度，從而延長壓縮機(jī)的使用壽命。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海CPI4700-100管道,冷凍油" src="https://tyunfile.71360.com/UploadFile/bingpu/637401018809058300/6262749.png"></div><p style="text-indent:25px">冷凍油在壓縮機(jī)運(yùn)轉(zhuǎn)時的摩擦面起什么作用?1、冷凍機(jī)油在磨合表面間形成-層油膜，降低了運(yùn)動摩擦力，從而減少了摩擦耗功和熱量，較終減小了零件的磨損量，提高了壓縮機(jī)的耐久性。2、冷凍機(jī)油在油泵的壓送下，使冷凍機(jī)油在磨合面之間成為流動油膜，把摩擦熱量帶走，使摩擦表面保持在安全的溫度范圍,限制了溫度上升。3、冷凍機(jī)油在活塞與汽缸壁面之間，不僅可以潤滑還起密封作用，阻止或減少了高壓蒸氣向低壓部分泄漏，提高了壓縮機(jī)的輸氣系數(shù)(容積效率)。4、在磨合面循環(huán)流動的冷凍機(jī)油不斷地把磨屑帶走，改善了磨合面的工作情況。</p><p style="text-indent:25px">冷凍設(shè)備對冷凍油的要求：由于使用場合和制冷劑的不同，制冷設(shè)備對冷凍機(jī)油的選擇也不同。對冷凍油的要求如下：(1)冰點(diǎn)在實(shí)驗(yàn)條件下，冷凍油冷卻到停止流動時的冰點(diǎn)稱為冰點(diǎn)。制冷設(shè)備中使用的冷凍油的凝固點(diǎn)應(yīng)盡可能低(如R22壓縮機(jī)，冷凍油應(yīng)低于-55)，否則會影響制冷劑的流動，增加流動阻力，導(dǎo)致傳熱效果不佳。(2)粘度冷凍機(jī)油是粘度油性質(zhì)的重要參數(shù)。應(yīng)相應(yīng)選擇不同的制冷劑。如果冷凍油的粘度過高，機(jī)械摩擦功率、摩擦熱和起動扭矩都會增加。相反，如果粘度太小，運(yùn)動部件之間不會形成所需的油膜，從而達(dá)不到潤滑和冷卻的效果。螺桿機(jī)在運(yùn)轉(zhuǎn)過程中不會產(chǎn)生摩擦，這個理論是在正確使用相關(guān)冷凍油的情況下成立的。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海CPI4700-100管道,冷凍油" src="https://tyunfile.71360.com/UploadFile/bingpu/637401018778521783/850214.png"></div><p style="text-indent:25px">在更換螺桿壓縮機(jī)冷凍時，分為兩種情況。首先，更換冷凍油不做內(nèi)部清理。壓縮機(jī)做泵集動作，將系統(tǒng)冷媒回收到冷凝器側(cè)(注意泵集動作較低吸氣壓力不低于0.5Kg/cm2G)，將壓縮機(jī)內(nèi)冷媒排除，保留些許內(nèi)部壓力作為動力源，將冷凍油從壓縮機(jī)的放油角閥排出。第二種，更換冷凍油并作內(nèi)部清理，放油的動作如前所述，冷凍油排除干凈且壓縮機(jī)內(nèi)外壓力平衡后，用內(nèi)六角扳手將法蘭螺栓松脫，拆出機(jī)油過濾器接頭和清結(jié)孔法蘭(或油位開關(guān)法蘭)后，將冷水機(jī)的壓縮機(jī)油槽內(nèi)的污染物去除干凈，并檢查機(jī)油過濾器孔網(wǎng)是否有破損，并將其上的油泥、污染物等吹除，或更換新的機(jī)油過濾器，注意換新時過濾器接口螺母要旋緊，做好密封，防止內(nèi)漏;機(jī)油過濾器接頭內(nèi)襯墊一定要換新，防止內(nèi)漏;其他法蘭襯墊也建議更新。冷凍油油壓大小依據(jù)壓縮機(jī)的結(jié)構(gòu)而定。蘇州冰熊冷凍油</p><p style="text-indent:25px">冷凍油能及時帶走運(yùn)動表面摩擦產(chǎn)生的熱量，防止壓縮機(jī)溫升過高或壓縮機(jī)被燒壞。上海CPI4700-100管道</p><p style="text-indent:25px">選擇冷凍油應(yīng)考慮的因素：1、粘度，壓縮機(jī)的轉(zhuǎn)速越高，使用冷凍機(jī)油的粘度應(yīng)越大，實(shí)際使用中一般低速立式雙缸壓縮機(jī)可使用L-DRAl5號冷凍油，中速和高速多缸壓縮機(jī)應(yīng)使用L-DRA22號或L-DRA32號冷凍油，某些高速重載壓縮機(jī)的發(fā)熱量大，油溫高，氣溫也高，較好使用L-DRA46號或L-DJRA68號冷凍油。2、熱穩(wěn)定性，熱穩(wěn)定性一般用冷凍機(jī)油的閃點(diǎn)來衡量。閃點(diǎn)是指冷凍機(jī)油的蒸汽遇火后發(fā)生閃火的溫度。冷凍機(jī)油的閃點(diǎn)必須高于壓縮機(jī)的排氣溫度，如R717，R12，R22壓縮機(jī)使用的冷凍機(jī)油閃點(diǎn)應(yīng)在160℃以上。上海CPI4700-100管道</p><p style="text-indent:25px">上海冰仆冷暖設(shè)備有限公司致力于化工，以科技創(chuàng)新實(shí)現(xiàn)***管理的追求。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)?，為客戶提?**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/3155322.html</p></div></div></div></div></div><div id="fzwnu7p" class="page-right twoColRt"><div id="tduqxt3" class="box01 margin10 clearfix"><h3><a 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