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<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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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>湖南食品冷凍機(jī)價位,冷凍機(jī)</p><p><span>***更新：</span>2020-11-25 03:14:20</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="jdvpq3w" 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(jī): </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="ycumeqs" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="3arjgnz" class="box"><p><p style="text-indent:25px">冷凍機(jī)的分類：活塞式冷凍機(jī)在活塞式冷凍機(jī)中，湖南食品冷凍機(jī)價位，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(jī)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(jī)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(jī)的主要潤滑部位是增速齒輪、主軸承及軸端的機(jī)械密封，湖南食品冷凍機(jī)價位。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(jī)突然斷電停機(jī)時，湖南食品冷凍機(jī)價位，油泵無油供給而冷凍機(jī)仍保持運(yùn)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。冷凍機(jī)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。湖南食品冷凍機(jī)價位</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="湖南食品冷凍機(jī)價位,冷凍機(jī)" src="https://tyunfile.71360.com/UploadFile/jianuo/637407885145625752/2539954.png"></div><p style="text-indent:25px">冷凍壓縮機(jī)是制冷循環(huán)的動力，它由電動機(jī)拖動而不停地旋轉(zhuǎn)，它除了及時抽出蒸發(fā)器內(nèi)蒸氣，維持低溫低壓外，還通過壓縮作用提高制冷劑蒸氣的壓力和溫度，創(chuàng)造將制冷劑蒸氣的熱量向外界環(huán)境介質(zhì)轉(zhuǎn)移的條件。即將低溫低壓制冷劑蒸氣壓縮至高溫高壓狀態(tài)，以便能用常溫的空氣或水作冷卻介質(zhì)來冷凝制冷劑蒸氣。制冷冷凝器是一個熱交換設(shè)備，作用是利用環(huán)境冷卻介質(zhì)(空氣或水)，將來自壓縮機(jī)的高溫高壓制冷蒸氣的熱量帶走，使高溫高壓制冷劑蒸氣冷卻、冷凝成高壓常溫的制冷劑液體。值得一提的是，冷凝器在把制冷劑蒸氣變?yōu)橹评鋭┮后w的過程中，壓力是不變的，仍為高壓。溫州電鍍**冷凍機(jī)哪家好制冷壓縮機(jī)的噪聲問題，以成為衡量冷凍機(jī)綜合性能的一個重要指標(biāo)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="湖南食品冷凍機(jī)價位,冷凍機(jī)" src="https://tyunfile.71360.com/UploadFile/jianuo/637407884999385504/9965719.png"></div><p style="text-indent:25px">冷凍壓縮機(jī)吸入的氣體允許一定的過熱度，但過熱度太大，吸入氣體的比容增加，其產(chǎn)冷量降低，相對耗電量增加。蒸發(fā)器表面覆蓋一層霜層，使其傳熱系數(shù)減小，尤其是翅片管外表面結(jié)霜時，不但增加了傳熱熱阻，而且使翅片間的空氣流動困難，減少外表的傳熱系數(shù)和散熱面積。當(dāng)室內(nèi)溫度低于0℃時，蒸發(fā)器管組兩側(cè)溫差為10℃時，蒸發(fā)器工作一個月后，其傳熱系數(shù)大約是結(jié)霜前70左右。如果壓縮機(jī)來霜，迅速關(guān)小吸氣閥，急劇地降低產(chǎn)冷量，相對增加耗電量。</p><p style="text-indent:25px">雙級制冷循環(huán)是在單級制冷循環(huán)的基礎(chǔ)上發(fā)展起來的，其壓縮過程分兩個階段進(jìn)行，來自蒸發(fā)器的制冷劑蒸汽先進(jìn)入低壓級汽缸壓縮到中間壓力，經(jīng)過中間冷卻后再進(jìn)入高壓級汽缸，壓縮到冷凝壓力進(jìn)入冷凝器中。一般蒸發(fā)溫度在-25℃~-50℃時，應(yīng)采用雙級壓縮機(jī)進(jìn)行制冷。冷凍機(jī)的制冷系統(tǒng)由蒸發(fā)器、雙級壓縮機(jī)、油分離器、冷凝器、中間冷卻器、貯氨器、氨液分離器、節(jié)流閥及其它附屬設(shè)備等組成，相互間通過管子聯(lián)接成一個封閉系統(tǒng)。其中，中間冷卻器利用少量液態(tài)制冷工質(zhì)在中間壓力下汽化吸熱，使低壓級排出的過熱蒸汽得到冷卻，降低高壓級的吸氣溫度，同時還使高壓液態(tài)制冷工質(zhì)得到冷卻。冷凍機(jī)廣泛應(yīng)用于工農(nóng)業(yè)生產(chǎn)和日常生活中。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="湖南食品冷凍機(jī)價位,冷凍機(jī)" src="https://tyunfile.71360.com/UploadFile/jianuo/637407885320879582/7687040.png"></div><p style="text-indent:25px">一般制冷機(jī)設(shè)備的制冷原理是壓縮機(jī)的作用，把壓力較低的蒸汽壓縮成壓力較高的蒸汽，使蒸汽的體積減小，壓力升高。壓縮機(jī)吸入從蒸發(fā)器出來的較低壓力的工質(zhì)蒸汽，使之壓力升高后送入冷凝器，在冷凝器中冷凝成壓力較高的液體，經(jīng)節(jié)流閥節(jié)流后，成為壓力較低的液體后，送入蒸發(fā)器，在蒸發(fā)器中吸熱蒸發(fā)而成為壓力較低的蒸汽，再送入壓縮機(jī)的入口，從而完成制冷循環(huán)。?主要部件組成制冷系統(tǒng)由制冷劑和四大機(jī)件，即壓縮機(jī)，冷凝器，膨脹閥，蒸發(fā)器組成。冷庫機(jī)組冷凍機(jī)在初期運(yùn)轉(zhuǎn)時要細(xì)心觀察壓縮機(jī)的回油情況，并保持清潔。寧波專業(yè)食品冷凍機(jī)哪家好</p><p style="text-indent:25px">間接冷卻是靠冷凍機(jī)蒸發(fā)器中制冷劑的蒸發(fā)，冷卻速度慢，總傳熱溫差大，系統(tǒng)也較復(fù)雜，故只用于較少場合。湖南食品冷凍機(jī)價位</p><p style="text-indent:25px">機(jī)械及行業(yè)設(shè)備行業(yè)，顧名思義就是與機(jī)械有關(guān)的行業(yè)，在很大程度上影響國民經(jīng)濟(jì)大發(fā)展，機(jī)械制造業(yè)也在一定程度上體現(xiàn)了經(jīng)濟(jì)建設(shè)水平。隨著經(jīng)濟(jì)的飛速發(fā)展，我國機(jī)械行業(yè)發(fā)展迅速，制造水平明顯提升。重大技術(shù)裝備是關(guān)系我國安全和國民經(jīng)濟(jì)命脈的基礎(chǔ)性、戰(zhàn)略性產(chǎn)品，是有限責(zé)任公司企業(yè)綜合實(shí)力和重點(diǎn)競爭力的重要標(biāo)志。近年來，機(jī)械工業(yè)在重大技術(shù)裝備的自主研發(fā)中不斷取得突破，創(chuàng)新成果正逐步加入使用。在我國經(jīng)濟(jì)步入發(fā)展新常態(tài)后，溫州冷水機(jī)，溫州冷凍機(jī)，溫州冷庫，溫州冷卻水塔行業(yè)也處于新舊增長模式轉(zhuǎn)換的關(guān)鍵時期，實(shí)施轉(zhuǎn)換的獨(dú)一途徑是依靠科技創(chuàng)新驅(qū)動發(fā)展。生產(chǎn)型企業(yè)圍繞生產(chǎn)源頭、制造過程和產(chǎn)品性能三個方面加強(qiáng)科技研發(fā)，應(yīng)用制造工藝，實(shí)現(xiàn)綠色制造。推廣節(jié)能低碳技術(shù)，采用制造工藝，發(fā)展循環(huán)經(jīng)濟(jì)，形成低加入、低消耗、低排放的業(yè)態(tài)模式，實(shí)現(xiàn)低碳制造。湖南食品冷凍機(jī)價位</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2131405.html</p></div></div></div></div></div><div id="dw2rjqn" class="page-right twoColRt"><div id="wbz7a7b" class="box01 margin10 clearfix"><h3><a 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