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onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="2jsur3a" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/bingpu/637401018699878301/745821.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="w3vmoam" 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>漢鐘,冷凍油</p><p><span>***更新：</span>2020-11-13 06:25:38</p><p><span id="click" >瀏覽次數(shù)：5次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="felxulx" 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: </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="8vco8df" class="page-proshow02"><p class="title">詳細說明</p><div id="znu2pwi" class="box"><p><p style="text-indent:25px">對冷凍油的要求有以下幾方面:(1)凝固點冷凍油在實驗條件下冷卻到停止流動的溫度稱為凝固點。制冷設(shè)備所用冷凍油的凝固點應越低越好(如R22的壓縮機，冷凍油應在-55℃以下)，否則會影響制冷劑的流動，增加流動阻力，從而導致傳熱效果差的后果。(2)黏度冷凍油黏度油料特性中的一個重要參數(shù)，使用不同制冷劑要相應選擇不同的冷凍油。若冷凍油黏度過大，會使機械摩擦功率、摩擦熱量和啟動力矩增大。反之，若黏度過小，則會使運動件之間不能形成所需的油膜，從而無法達到應有的潤滑和冷卻效果，漢鐘。目前我國生產(chǎn)的冷凍油有13號，漢鐘、18號，漢鐘、25號、30號和企業(yè)標準40號五種牌號的冷凍油。漢鐘</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="漢鐘,冷凍油" src="https://tyunfile.71360.com/UploadFile/bingpu/637401018699878301/745821.png"></div><p style="text-indent:25px">中央空調(diào)安裝工程不僅要選擇合適的匹配型號，還需要在后期使用的過程中，注重設(shè)備的維護保養(yǎng)，尤其是冷凍油的更換。由于中央空調(diào)系統(tǒng)的復雜性，所以無論是維修還是保養(yǎng)，都應該找專業(yè)的中央空調(diào)售后公司來進行，現(xiàn)在為大家簡單介紹幾條螺桿式冷水機組維保操作規(guī)范，工業(yè)中央空調(diào)主機冷凍機油更換的技術(shù)要點：1.關(guān)閉油路的隔離閥門；2.在角閥安裝2分的街頭并轉(zhuǎn)換氟管后放油；3.加注和維保冷水機組相匹配的冷凍機油；4.冷凍機油加注完畢后，將閥門設(shè)置為原來的狀態(tài)。蘇州CPI冷凍油多少錢如果冷凍油油溫一直不穩(wěn)定且緩慢上升，則說明有故障。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="漢鐘,冷凍油" src="https://tyunfile.71360.com/UploadFile/bingpu/637401018679585306/9355478.png"></div><p style="text-indent:25px">一般情況下，正常的中央空調(diào)**冷凍油是可以持續(xù)運轉(zhuǎn)1萬小時左右，但是這個在相對理想的數(shù)值下面，當環(huán)境不好或者是周圍的情況惡劣的話，工作人員還是要定期使用檢測指標的工具對中央空調(diào)**冷凍油進行質(zhì)量檢測，一旦出現(xiàn)PH指標下降、污染指數(shù)上升及含水量大的情況下，需要及時更換，避免變質(zhì)的中央空調(diào)**冷凍油對壓縮機起不到保護作用，相反會阻礙它的正常運轉(zhuǎn)。另外在更換中央空調(diào)**冷凍油的過程中，建議一定要斷電操作，前面記得關(guān)機，避免更換途中電流或者機器沒有冷卻在更換機油過程中出現(xiàn)燙傷情況。</p><p style="text-indent:25px">空調(diào)壓縮機添加冷凍油具體操作步驟如下：1、關(guān)閉吸氣截止閥，啟動壓縮機幾分鐘，將曲軸箱中制冷劑排入冷凝器，使曲軸箱成真空。停機并立即關(guān)閉排氣截止閥，慢慢旋下排氣截止閥的旁通孔螺塞，將高壓腔內(nèi)剩氣放掉。旋下吸氣截止閥旁通孔螺塞，裝上錐牙接頭和銅管。2、準備好潤滑油。3、用手指撳住吸油管口，起動壓縮機將曲軸箱內(nèi)空氣抽出。如果發(fā)現(xiàn)液擊現(xiàn)象，則讓壓縮機繼續(xù)運轉(zhuǎn)2~3分鐘，使曲軸箱內(nèi)呈真空狀態(tài)，當撳住管口的手指感到有一股較強的吸力時即停。4、把手指撳住的管口浸入油中，浸入后即放手，油便從油管吸入曲軸管。5、觀察油面指示器，所指油面是否達到油面線為止。6、拆下銅管和接頭，旋上螺塞扳緊，啟動壓縮機讓曲軸箱內(nèi)吸進的空氣抽出，當聽不到排氣聲時即扳緊排氣截止閥螺塞。7、打開吸、排氣截止閥，加油工作完成。PAG冷凍油則可用HFC類、烴類和氨作為制冷劑的制冷系統(tǒng)中的潤滑油。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="漢鐘,冷凍油" src="https://tyunfile.71360.com/UploadFile/bingpu/637401018692905714/509027.png"></div><p style="text-indent:25px">冷凍機油的性能要求：1、合適的粘度，冷凍機油的粘度除了要保證各運動部件的磨擦面有良好潤滑性以外，還要從制冷機中帶走部分熱量，以及起到密封作用。如果制冷機所使用的制冷劑對冷凍機油互溶性較大時，應考慮使用粘度較大的油品，以克服潤滑油被制冷劑稀釋后的影響。2、揮發(fā)性小，閃點高，冷凍機油的揮發(fā)量愈大，隨制冷劑循環(huán)的油量也愈多，因此要求冷凍機油的餾份范圍愈窄愈好，閃點亦應高于制冷機排氣溫度25～30℃以上。3、良好的化學穩(wěn)定性和熱氧化穩(wěn)定性，制冷機工作中的較后壓縮溫度可達130℃～160℃，在此溫度下冷凍機油會受熱而不斷分解變質(zhì)，生成積炭而導致制冷機產(chǎn)生故障與磨損。一般情況下，正常的中央空調(diào)**冷凍油是可以持續(xù)運轉(zhuǎn)1萬小時左右。漢鐘</p><p style="text-indent:25px">制冷設(shè)備所用冷凍油的凝固點應越低越好，否則會影響制冷劑的流動，從而導致傳熱效果差的后果。漢鐘</p><p style="text-indent:25px">冷凍油應有良好的低溫下的流動性，在蒸發(fā)器內(nèi)，因溫度低、油的粘度增大，流動性變差，當達到一定溫度時冷凍機油停止流動，此時的溫度稱油的凝固點。制冷機的冷凍機油要求凝固點要低，特別是低溫制冷機對油的凝固點要求很重要。否則流動性降低，既影響蒸發(fā)器的傳熱又影響機器的潤滑。各種冷凍油的凝固點都在-40℃以下，能夠滿足一般用途的制冷機的使用需要。蒸發(fā)溫度再低時，可使用精密儀器油，其凝固點一般不高于-60℃。各種制冷劑與冷凍機油相溶是不相同的，大致分三大類：一類為相互不溶解的，一類為相互無限溶解的，再一類是介于上述二者中間的。關(guān)于溶解性的利弊在制冷劑一節(jié)已有論述，這里不再重復。漢鐘</p><p style="text-indent:25px">上海冰仆冷暖設(shè)備有限公司屬于化工的高新企業(yè)，技術(shù)力量雄厚。公司是一家有限責任公司企業(yè)，以誠信務實的創(chuàng)業(yè)精神、專業(yè)的管理團隊、踏實的職工隊伍，努力為廣大用戶提供***的產(chǎn)品。公司擁有專業(yè)的技術(shù)團隊，具有制冷劑廠家直銷，冷凍油廠家直銷，壓縮機批發(fā)銷售，制冷配件批發(fā)銷售等多項業(yè)務。冰仆冷暖設(shè)備順應時代發(fā)展和市場需求，通過**技術(shù)，力圖保證高規(guī)格高質(zhì)量的制冷劑廠家直銷，冷凍油廠家直銷，壓縮機批發(fā)銷售，制冷配件批發(fā)銷售。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/1971234.html</p></div></div></div></div></div><div id="znuwiuw" class="page-right twoColRt"><div id="2z2odul" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="tnuwiug" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" alt="福建ZF配件哪家強信息推薦自業(yè)物資供應" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強信息推薦自業(yè)物資供應</p></a></div><div id="2f4tart" class="recomPic likePro"><a 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