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onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="2hm3b8g" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/bingpu/637401016134136108/3814907.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="2zdamlz" 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>產品關鍵詞：</span>蘇州巨化制冷劑管道,制冷劑</p><p><span>***更新：</span>2021-01-01 07:23:38</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="gqxp77b" 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="y2f88jb" class="page-proshow02"><p class="title">詳細說明</p><div id="p33wahw" class="box"><p><p style="text-indent:25px">新的解決方案是開發(fā)HFC族，來擔當制冷劑的主要角色。HCFC族作為過渡方案繼續(xù)使用并將逐漸淘汰。在1990年代，全球變暖對地球生命構成了新的威脅。雖然全球變暖的因素很多，但因為空調和制冷耗能巨大（美國建筑物耗能約占總能耗的1/3），且許多制冷劑本身就是溫室氣體，制冷劑又被列入了討論范圍。雖然ASHRAE標準34把許多物質分類為制冷劑，但只有少部分用于商業(yè)空調。1985年2月英國南極考察隊隊長發(fā)曼（J.Farman)首先報道，蘇州巨化制冷劑管道，從1977年起就發(fā)現(xiàn)南極洲上空的臭氧總量在每年9月下旬開始迅速減少一半左右，形成“臭氧洞”持續(xù)到11月逐漸恢復，蘇州巨化制冷劑管道，蘇州巨化制冷劑管道，引起世界性的震驚。碳氫制冷劑屬于天然工質，因此對大氣無污染、對臭氧層無破壞和溫室效應幾乎為零。蘇州巨化制冷劑管道</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="蘇州巨化制冷劑管道,制冷劑" src="https://tyunfile.71360.com/UploadFile/bingpu/637401016134136108/3814907.png"></div><p style="text-indent:25px">我國冷藏企業(yè)中，尤其是中小企業(yè)，許多未配備針對氨制冷劑的防護設備，缺乏有關制冷系統(tǒng)故障的應急處理預案。冷庫安全問題必須引起企業(yè)和管理部門的高度重視。在國內外大中型冷庫中，目前采用氨制冷劑是主流，今后氨仍然將是主要制冷劑。采用氨制冷劑關鍵是安全問題，應該采取足夠的防護措施，保證操作人員安全和公共安全。根據(jù)國外**的評估，在蒸發(fā)溫度-35℃以上，壓縮式制冷采用氨制冷劑是較節(jié)能的。蒸發(fā)溫度在-35℃以下，采用CO2與氨復疊式制冷，不僅可以降低初次投入、提高效率，而且較大減少了系統(tǒng)的充氨量、提高了食品冷加工企業(yè)的安全系數(shù)。蘇州東岳制冷劑管道R404A是一種不含氯的非共沸混合制冷劑。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="蘇州巨化制冷劑管道,制冷劑" src="https://tyunfile.71360.com/UploadFile/bingpu/637401017180395870/8685948.png"></div><p style="text-indent:25px">在蒸汽壓縮式制冷機中，制冷劑選擇除了要有較好的熱力性質和物理化學性質外，更應具有優(yōu)良的環(huán)境特性。具體要求如下：（1）對人類生態(tài)環(huán)境無破壞作用。不破壞大氣臭氧層，不產生溫室效應。（2）臨界溫度較高。在常溫或普通低溫下能夠液化。希望臨界溫度比環(huán)境溫度高的多，才能減少制冷劑節(jié)流損失，提高循環(huán)經濟性。（3）在工作溫度范圍內，具有適當?shù)娘柡险羝麎毫?，較起碼蒸發(fā)壓力不得低于大氣壓力，以免外部空氣滲入系統(tǒng)中；冷凝壓力不宜過高，否則會引起壓縮機耗功增加，并要求系統(tǒng)具有較高的承壓能力，增加設備成本。</p><p style="text-indent:25px">在氣體壓縮式制冷機中，使用氣體制冷劑，如空氣、氫氣、氦氣等，這些氣體在制冷循環(huán)中始終為氣態(tài)；在吸收式制冷機中，使用由吸收劑和制冷劑組成的二元溶液作為工質，如氨和水、溴化鋰（分子式：LiBr。白色立方晶系結晶或粒狀粉末，極易溶于水）和水等；蒸汽噴射式制冷機用水作為制冷劑。制冷劑的主要技術指標有飽和蒸氣壓強、比熱、粘度、導熱系數(shù)、表面張力等。1960年以后，人們對非共沸混合工質的應用進行了大量的試驗研究，并已將其用于天然氣的液化和分離等方面。R404A 制冷劑常溫常壓下為無色氣體，貯存在鋼瓶內是被壓縮的液化氣體。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="蘇州巨化制冷劑管道,制冷劑" src="https://tyunfile.71360.com/UploadFile/bingpu/637401016854712184/7560085.png"></div><p style="text-indent:25px">根據(jù)對國內外大中型冷庫制冷劑使用情況的調研，分析了大中型冷庫制冷劑的現(xiàn)狀。根據(jù)國際上較新的文獻，評論了冷庫制冷劑應用的發(fā)展新動向。結果表明：在國內外大中型冷庫中，目前采用氨制冷劑是主流，今后氨仍然將是主要制冷劑。在蒸發(fā)溫度-35℃以上，壓縮式制冷采用氨制冷劑是較節(jié)能的。采用氨制冷劑的關鍵問題是安全問題。在制冷劑的發(fā)展動向中，CO2系統(tǒng)成為新一代制冷劑關注的重點，CO2/NH3復疊式制冷系統(tǒng)具有較大的發(fā)展?jié)摿?。在間接制冷系統(tǒng)中，采用氨水替代乙二醇作為載冷劑，可以使系統(tǒng)能耗明顯降**冷劑氣體在制冷循環(huán)中始終為氣態(tài)；江蘇巨化制冷劑供應</p><p style="text-indent:25px">制冷劑需有良好的電氣絕緣性。蘇州巨化制冷劑管道</p><p style="text-indent:25px">制冷劑低壓端加注：從壓縮機吸氣閥(低壓閥)的旁通孔(多用通道)加注，充入的是制冷劑氣體，其特點是加注速度慢，可在系統(tǒng)補充制冷劑的情況下使用。操作步驟：1）、將歧管壓力計與壓縮機和制冷罐連接好。2）、打開制冷劑罐，擰松中間注入軟管在歧管壓力計上的螺母，直到聽見有制冷劑蒸氣流動聲，然后擰緊螺母。從而排出注入軟管中的空氣。3)關閉手動高壓閥，將制冷劑鋼瓶直立，起動發(fā)動機，使空調壓縮機運轉，打開低壓手動閥，讓氣態(tài)制冷劑從低壓側進入壓縮機，當系統(tǒng)的壓力值達到0.4MPa時，關閉低壓手動閥和制冷劑罐開關閥。4)起動發(fā)動機，將空調開關接通，并將鼓風機開關和溫控開關都調至較大。5)再打開歧管壓力計上的手動閥，讓制冷劑繼續(xù)進入制冷系統(tǒng)，直至加注量達到規(guī)定值。蘇州巨化制冷劑管道</p><p style="text-indent:25px">上海冰仆冷暖設備有限公司總部位于美丹路222號629室，是一家銷售:制拎設備、化工產品(除危險化學品、監(jiān)控化學品、煙花爆竹、民用物品、易制毒化學品)、儀器儀表、汽車配件，機械配件、五金電器、焊接工具。銷售:制拎設備、化工產品(除危險化學品、監(jiān)控化學品、煙花爆竹、民用物品、易制毒化學品)、儀器儀表、汽車配件，機械配件、五金電器、焊接工具。的公司。冰仆冷暖設備深耕行業(yè)多年，始終以客戶的需求為向導，為客戶提供***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。冰仆冷暖設備不斷開拓創(chuàng)新，追求出色，以技術為先導，以產品為平臺，以應用為重點，以服務為保證，不斷為客戶創(chuàng)造更高價值，提供更優(yōu)服務。冰仆冷暖設備創(chuàng)始人徐佳華，始終關注客戶，創(chuàng)新科技，竭誠為客戶提供良好的服務。</p></p><br /><p>文章來源地址: http://m.cdcfah.com/cp/2657223.html</p></div></div></div></div></div><div id="kt2jls9" class="page-right twoColRt"><div id="az8v8b3" 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