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class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="za2wo3g" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/jianuo/637407885111084820/8262030.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="hw9as4j" 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)品關鍵詞：</span>浙江食品冷凍機報價,冷凍機</p><p><span>***更新：</span>2021-01-18 08:11:14</p><p><span id="click" >瀏覽次數(shù)：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="72bike7" 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="py4o8hx" class="page-proshow02"><p class="title">詳細說明</p><div id="k3ogdhg" class="box"><p><p style="text-indent:25px">一般制冷機設備的制冷原理是壓縮機的作用，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。壓縮機吸入從蒸發(fā)器出來的較低壓力的工質蒸汽，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，再送入壓縮機的入口，浙江食品冷凍機報價，浙江食品冷凍機報價，從而完成制冷循環(huán)。?主要部件組成制冷系統(tǒng)由制冷劑和四大機件，即壓縮機，冷凝器，浙江食品冷凍機報價，膨脹閥，蒸發(fā)器組成。半導體冷凍機利用半導體的熱電效應制取冷量。浙江食品冷凍機報價</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="浙江食品冷凍機報價,冷凍機" src="https://tyunfile.71360.com/UploadFile/jianuo/637407885111084820/8262030.png"></div><p style="text-indent:25px">冷凍機產(chǎn)冷量多少，與系統(tǒng)運轉工況有直接關系，對于同一臺結構，轉速，制冷劑種類均已確定的壓縮機，由于運轉工況改變，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，導致產(chǎn)冷量減少和耗電量增加。冷凝器內表面上積有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、當空氣聚集在冷凝器內時，會引起冷凝壓力升高，不凝結氣體分壓力達到1.96105Pa時，壓縮機耗電量要增加18%。食品冷凍機廠家價格為了確保制冷壓縮機正常運轉延長使用壽命除定期維護檢修外，日常的維護檢查非常重要。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="浙江食品冷凍機報價,冷凍機" src="https://tyunfile.71360.com/UploadFile/jianuo/637407884999385504/9965719.png"></div><p style="text-indent:25px">由于環(huán)保要求的新制冷劑的應用也是冷凍壓縮機行業(yè)的一個熱點問題，隨著用于冰箱產(chǎn)品的R22制冷劑替代工作的結束，新制冷劑壓縮機的研究主要集中在空調行業(yè)。除了已比較成熟的R410A、R407C方面的研究外，較大的熱點問題是二氧化碳壓縮機的研究。由于二氧化碳系統(tǒng)壓力遠遠大于傳統(tǒng)的壓臨界循環(huán)系統(tǒng)，壓縮機的軸封設計要求比原有壓縮機高得多，壓縮機的軸封泄漏在一段時間內仍將是阻礙其實用化的主要原因?？衫没铋y進行10%～100%的無級能量調節(jié)，適用范圍廣，運行平穩(wěn)可靠，需檢修周期長，無故障運行時間可達（2～5）×104h。由于使用潤滑油使機器的冷卻使用和密封性能得到改善，排氣溫度降低，即使蒸發(fā)溫度較低（-40℃）和壓縮比較高（25左右），仍然可以單級運行，即在一定范圍內可以代替兩級壓縮循環(huán)。但是，螺桿式冷凍壓縮機的加工和裝配要求精度較高，不適宜于變工況運行，有較大的噪音，在一般情況下，需裝置消音和隔音設備，在制冷壓縮時，需要噴加潤滑油，因而需要油泵、油冷卻器和油回收器等較多輔助設備。</p><p style="text-indent:25px">冷凍機的概述：冷凍機指用壓縮機改變冷媒氣體的壓力變化來達到低溫制冷的機械設備。所采用的壓縮機，因其使用條件和壓縮工作介質的不同，它有不同于一般的空氣壓縮機。按冷凍機結構和工作原理上的差別，它與空氣壓縮機類似，也可分為活塞式、螺桿式、離心式等幾種不同形式。冷凍機是壓縮制冷設備中非常重要的組成部分之一。制冷劑可分別用于低壓(冷凝壓力小于0.3-0.3MPa)高溫(蒸發(fā)溫度大于0℃)、中壓(冷凝壓力1-2MPa)中溫(蒸發(fā)溫度0—-50℃)及高壓(冷凝壓力大于2MPa)低溫(蒸發(fā)溫度小于-50℃)的制冷系統(tǒng)里。冷凍機的冷卻方式有直接冷卻和間接冷卻兩種。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="浙江食品冷凍機報價,冷凍機" src="https://tyunfile.71360.com/UploadFile/jianuo/637407885025977300/1857490.png"></div><p style="text-indent:25px">制冰機是一種將水通過蒸發(fā)器由制冷系統(tǒng)制冷劑冷卻后生成冰的冷凍機，采用制冷系統(tǒng)，以水載體，在通電狀態(tài)下通過某一設備后制造出冰。根據(jù)蒸發(fā)器的原理和生產(chǎn)方式的不同，生成的冰塊形狀也不同；人們一般以冰形狀將制冰機分為顆粒冰機、片冰機、板冰機、管冰機、殼冰機等等。通過補充水閥門，水自動進入一個蓄水槽，然后經(jīng)流量控制閥將水通過水泵送至到分流頭，在那里水均勻地噴淋到制冰器表面上，象水簾一樣流過制冰器的壁面，水被冷卻至冰點，而沒有被蒸發(fā)凍結的水將通過多孔槽流入蓄水槽，重新開始循環(huán)工作。制冰機是一種將水通過蒸發(fā)器由制冷系統(tǒng)制冷劑冷卻后生成冰的冷凍機。浙江食品冷凍機報價</p><p style="text-indent:25px">氟機冷凍機一般體積小、噪音小、較可靠、自動化程度高、適用范圍廣，適于鄉(xiāng)村小型冷庫用冷凍機。浙江食品冷凍機報價</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移給環(huán)境介質從而獲得冷量的機器。從較低溫度物體轉移的熱量習慣上稱為冷量。制冷機內參與熱力過程變化（能量轉換和熱量轉移）的工質稱為制冷劑。制冷的溫度范圍通常在120K以上，120K以下屬深低溫技術范圍。制冷機普遍應用于工農(nóng)業(yè)生產(chǎn)和日常生活中。浙江食品冷凍機報價</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2900496.html</p></div></div></div></div></div><div id="3jszw3m" 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