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src="https://tyunfile.71360.com/UploadFile/jianuo/637407884999385504/9965719.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="rg3nfct" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/jianuo/637407884999385504/9965719.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="rldace7" 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>浙江省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>安徽冷凍機報價,冷凍機</p><p><span>***更新：</span>2021-01-18 07:10:23</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="m7oli2g" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">溫州佳諾制冷設(shè)備有限公司</a></p><p><span>聯(lián)系人：</span>王向坤 / 蔣永要</p><p><span>郵箱: </span>990653603@qq.com</p><p><span>電話: </span>13738735303</p><p><span>傳真: </span>153_</p><p><span>網(wǎng)址: </span>http://www.zlsbwz.com</p><p><span>手機: </span>153-25770900</p><p><span>地址: </span>婁橋街道東耕村吹臺東路55號北首</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="87d7sht" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="3fo3nkw" class="box"><p><p style="text-indent:25px">為了確保冷凍壓縮機正常運轉(zhuǎn)延長使用壽命除定期維護(hù)檢修外，安徽冷凍機報價，日常的維護(hù)檢查非常重要。除了用各種儀表測知壓縮機的運轉(zhuǎn)變化外，通常還用看、聽、摸的這種方法來檢查。但這三種方法也不是孤立的，而是互相聯(lián)系的，單憑其中一種方法不能檢查壓縮機運轉(zhuǎn)情況的好壞。用看的方法，可以看出各傳動部分的機件是否松動，安徽冷凍機報價，各摩擦部分的潤滑情況是否良好;各級氣缸冷卻水和中間冷卻器的冷卻效率是否良好和冷卻水的流動是否暢通;各級氣缸和冷卻器有否倒氣;各連接處有否漏氣和漏油。用聽的方法，能較正確的判斷出壓縮機的運轉(zhuǎn)情況。因為壓縮機運轉(zhuǎn)時，安徽冷凍機報價，它的響聲應(yīng)是均勻而有節(jié)奏的。如果它的響聲失去節(jié)奏聲，而出現(xiàn)了不均勻的雜單和噪音時，即表示壓縮機的內(nèi)部機件或氣缸工作情況有了不正常的變化。冷凍機廣泛應(yīng)用于工農(nóng)業(yè)生產(chǎn)和日常生活中。安徽冷凍機報價</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="安徽冷凍機報價,冷凍機" src="https://tyunfile.71360.com/UploadFile/jianuo/637407884999385504/9965719.png"></div><p style="text-indent:25px">冷凍機的冷卻方式有直接冷卻和間接冷卻兩種。直接冷卻是將制冷機的蒸發(fā)器裝設(shè)在制冷裝置的箱體或建筑物內(nèi)，利用制冷劑的蒸發(fā)直接冷卻其中的空氣，靠冷空氣冷卻需要冷卻的物體。這種冷卻方式的優(yōu)點是冷卻速度快，傳熱溫差小，系統(tǒng)比較簡單，因而得到普遍應(yīng)用。間接冷卻是靠制冷機蒸發(fā)器中制冷劑的蒸發(fā)，從而使載冷劑(例如鹽水)冷卻，再將載冷劑輸入制冷裝置的箱體或建筑物內(nèi)，通過換熱器冷卻其中的空氣。這種冷卻方式冷卻速度慢，總傳熱溫差大，系統(tǒng)也較復(fù)雜，故只用于較少的場合，如鹽水制冰和溫度要求恒定的冷庫等。安徽冷凍機報價制冷機組的制冷機是冷凍機的心臟，常見的壓縮式制冷機有開放式、半封閉式和全封閉式之分。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="安徽冷凍機報價,冷凍機" src="https://tyunfile.71360.com/UploadFile/jianuo/637407885269649292/4062728.png"></div><p style="text-indent:25px">冷凍機的分類：活塞式冷凍機在活塞式冷凍機中，需要潤滑的摩擦部位有：活塞與氣缸的壁面；連桿大頭軸瓦與曲柄銷；連桿小頭軸瓦與活塞銷；活塞銷與活塞銷座；前后滑動軸承的軸瓦和主軸頸以及主軸軸封的靜動摩擦密封面等。螺桿式冷凍機凸凹螺桿(亦稱陰陽轉(zhuǎn)子)的轉(zhuǎn)動嚙合部；轉(zhuǎn)動的螺桿與殼體的相對滑動表面；螺桿前后的滑動軸承；主動螺桿的平衡活塞及軸端的機械密封摩擦面。在上述潤滑部位均開有與壓力油相通的油口。離心式冷凍機的主要潤滑部位是增速齒輪、主軸承及軸端的機械密封。通常齒輪箱可兼做潤滑油箱，其中裝有電加熱器可對潤滑油進(jìn)行預(yù)熱，油泵用于將油抽送到專設(shè)的高位油箱，再由高位油箱把油引到所需的潤滑部位，該種方式可防止油泵供油系統(tǒng)突然故障或冷凍機突然斷電停機時，油泵無油供給而冷凍機仍保持運轉(zhuǎn)或借慣性繼續(xù)高速回轉(zhuǎn)，因無潤滑而造成設(shè)備摩擦部位的“燒傷”或“咬合”事故。</p><p style="text-indent:25px">按照冷卻目的和冷量利用方式的不同，冷凍機大體可分為冷藏用制冷裝置、試驗用制冷裝置、生產(chǎn)用制冷裝置和空調(diào)用制冷裝置四類。冷藏用冷凍機主要用于在低溫條件下貯藏或運輸食品和其他貨品，包括各種冰箱、冷庫、冷藏車、冷藏船和冷藏集裝箱等。制冷機將具有較低溫度的被冷卻物體的熱量轉(zhuǎn)移給環(huán)境介質(zhì)從而獲得冷量的機器。從較低溫度物體轉(zhuǎn)移的熱量習(xí)慣上稱為冷量。制冷機內(nèi)參與熱力過程變化（能量轉(zhuǎn)換和熱量轉(zhuǎn)移）的工質(zhì)稱為制冷劑。制冷的溫度范圍通常在120K以上，120K以下屬深低溫技術(shù)范圍。制冷機普遍應(yīng)用于工農(nóng)業(yè)生產(chǎn)和日常生活中。冷凍機主要由壓縮機、膨脹閥、蒸發(fā)器、冷凝器和附件、管路組成。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="安徽冷凍機報價,冷凍機" src="https://tyunfile.71360.com/UploadFile/jianuo/637407885237832737/1909820.png"></div><p style="text-indent:25px">冷凍機節(jié)流元件高壓常溫的制冷劑液體不能直接送入低溫蒸發(fā)器、根據(jù)飽和壓力與飽和溫度——對應(yīng)原理，降**冷劑液體的壓力，從而降**冷劑液體的溫度。將高壓常溫的制冷劑液體通過降壓裝置——節(jié)流元件，得到低溫低壓制冷劑，再送入蒸發(fā)器內(nèi)吸熱蒸發(fā)。在日常生活中的冰箱、空調(diào)常用毛細(xì)管作為節(jié)流元件。蒸發(fā)器也是一個熱交換設(shè)備。節(jié)流后的低溫低壓制冷劑液體在其內(nèi)蒸發(fā)(沸騰)變?yōu)檎魵?，吸收被冷卻物質(zhì)的熱量，使物質(zhì)溫度下降，達(dá)到冷凍、冷藏食品的目的。在空調(diào)器中，冷卻周圍的空氣，達(dá)到對空氣降溫、去濕的作用。蒸發(fā)器內(nèi)制冷劑的蒸發(fā)溫度越低，被冷卻物的溫度也越低。在冰箱中一般制冷劑的蒸發(fā)溫度調(diào)整在-26℃~-20℃，在空調(diào)器中調(diào)整在5℃~8℃。中型冷庫一般選用半封閉壓縮機冷凍機。安徽冷凍機報價</p><p style="text-indent:25px">小型冷庫選用全封閉壓縮機冷凍機。安徽冷凍機報價</p><p style="text-indent:25px">冷凍機產(chǎn)冷量多少，與系統(tǒng)運轉(zhuǎn)工況有直接關(guān)系，對于同一臺結(jié)構(gòu)，轉(zhuǎn)速，制冷劑種類均已確定的壓縮機，由于運轉(zhuǎn)工況改變，操作管理不同，其產(chǎn)冷量和耗能也隨著變化。 1、隨著蒸發(fā)溫度的降低，壓縮機的壓縮比增大，單位產(chǎn)冷量耗能增加。當(dāng)蒸發(fā)溫度每降低1℃，則要多耗電3%-4%。因此盡可能縮小蒸發(fā)溫差，提高蒸發(fā)溫度，不但節(jié)約電耗，還可以提高冷間的相對濕度。 2、隨著冷凝溫度的升高，壓縮機的壓縮比增大，單位產(chǎn)冷量的耗能增加。冷凝溫度在25℃-40℃之間，每升高1℃，增加耗電量3.2%左右。??? 3、冷凝器和蒸發(fā)器的換熱表面覆有油層時，會引起冷凝溫度升高，蒸發(fā)溫度降低，導(dǎo)致產(chǎn)冷量減少和耗電量增加。冷凝器內(nèi)表面上積有0.1mm厚油層時，將使壓縮機產(chǎn)冷量下降16.6，耗電量增加12.4；蒸發(fā)器內(nèi)表面上積油0.1mm厚油層時，為了保持已定的低溫要求，蒸發(fā)溫度就下降2.5℃，耗電量增加9.7%。??? 4、當(dāng)空氣聚集在冷凝器內(nèi)時，會引起冷凝壓力升高，不凝結(jié)氣體分壓力達(dá)到1.96105Pa時，壓縮機耗電量要增加18%。安徽冷凍機報價</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2899328.html</p></div></div></div></div></div><div id="ewtahtq" class="page-right twoColRt"><div id="mb278ao" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="mgi3vm8" 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(yīng)" 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(yīng)</p></a></div><div id="e7yubdp" class="recomPic 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