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clearfix"><div id="ams2ow4" class="twoCol"><div id="uqyk2qa" class="page-proshow clearfix"><p class="current"> 當(dāng)前位置:<a href="http://www.cdcfah.com/">首頁?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://www.cdcfah.com/cp/first-_jxhxp/">精細(xì)化學(xué)品</a>?<a href="http://www.cdcfah.com/cp/second-jxhxp_tlzjdy/">涂料助劑</a>?<a href="http://www.cdcfah.com/cp/third-tlzjdy_qttlzjrh/">其他涂料助劑</a>?梅蘭R407C企業(yè) 上海冰仆冷暖設(shè)備供應(yīng)</p><div id="4k6ea2s" class="leftbox clearfix"><h1>梅蘭R407C企業(yè) 上海冰仆冷暖設(shè)備供應(yīng)</h1><div id="eeyg44g" class="proBig"><div id="yaucius" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/bingpu/637401016630073583/4612161.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="42sagcc" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/bingpu/637401016630073583/4612161.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="aiqckuc" 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>梅蘭R407C企業(yè),制冷劑</p><p><span>***更新：</span>2021-01-16 07:19:18</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="soi4awq" 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(jī): </span>1-1</p><p><span>地址: </span>美丹路222號629室</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="yksqwea" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="ym4cye2" class="box"><p><p style="text-indent:25px">向制冷系統(tǒng)中加入氮氣，然后用肥皂液檢漏。若有泄漏，泄漏處會出現(xiàn)肥皂泡。采用壓力檢漏時，嚴(yán)禁用壓縮空氣進(jìn)行檢漏，因為壓縮空氣中含有水分，水分隨空氣進(jìn)入后會在膨脹閥處產(chǎn)生冰堵。工業(yè)氮氣無腐蝕性、無水分，且價格便宜，但瓶裝高壓氮氣一定要用減壓表加注。加壓試漏時，首先應(yīng)正確連接歧管壓力計：高壓軟管接在排氣管道上(高壓側(cè))，梅蘭R407C企業(yè)，低壓軟管接在吸氣管道上(低壓側(cè))。將軟管連接在壓縮機(jī)的高、低壓檢修閥上，梅蘭R407C企業(yè)，打開高、低壓檢修閥，向系統(tǒng)中加入干燥氮氣其壓力一般應(yīng)為1.5MPa左右。當(dāng)系統(tǒng)達(dá)到規(guī)定壓力后，用肥皂液涂在系統(tǒng)的各連接處和焊接處，仔細(xì)觀察有無泄漏，梅蘭R407C企業(yè)。泄漏大的地方有微小聲音，并出現(xiàn)大泡沫，泄漏小的地方，則間斷出現(xiàn)小泡沫，所以檢漏必須仔細(xì)，并反復(fù)檢查3～5次，發(fā)現(xiàn)泄漏處應(yīng)作出記號并及時加以修復(fù)，然后再去試漏其他接頭處，直至泄漏徹底排除。修漏完畢，應(yīng)試漏，讓系統(tǒng)保壓24～48h，若壓力不降低，則試漏合格，倘若壓力有明顯降低，必須重新進(jìn)行檢漏，直到找出泄漏處并加以排除為止。氨作為制冷劑幾乎不溶解于油、流動阻力小，泄漏時易發(fā)現(xiàn)。梅蘭R407C企業(yè)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="梅蘭R407C企業(yè),制冷劑" src="https://tyunfile.71360.com/UploadFile/bingpu/637401016630073583/4612161.png"></div><p style="text-indent:25px">目前我國空調(diào)行業(yè)使用較多的制冷劑是HCFC物質(zhì)R22。R290與R22的標(biāo)準(zhǔn)沸點、凝固點、臨界點等基本物理性質(zhì)非常接近，具備替代R22的基本條件。在飽和液態(tài)時，R290的密度比R22小，因此相同容積下R290的灌注量更小，試驗證明相同系統(tǒng)體積下R290的灌注量是R22的43%左右。另外，由于R290的汽化潛熱大約是R22的2倍左右，因此采用R290的制冷系統(tǒng)制冷劑循環(huán)量更小。R290具有良好的材料相容性，與銅、鋼、鑄鐵、潤滑油等均能良好相容。未來我國還將進(jìn)一步加大使用R290制冷劑的空調(diào)產(chǎn)線改造示范試點力度。隨著對R290應(yīng)用技術(shù)研究的不斷深入、使用經(jīng)驗的不斷積累，環(huán)保型制冷劑R290未來將擁有廣闊的市場應(yīng)用前景。梅蘭R407C企業(yè)制冷劑需具有優(yōu)良的熱力學(xué)特性，以便能在給定的溫度區(qū)域內(nèi)運行時有較高的循環(huán)效率。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="梅蘭R407C企業(yè),制冷劑" src="https://tyunfile.71360.com/UploadFile/bingpu/637401016827358685/8769372.png"></div><p style="text-indent:25px">R-404A制冷劑物化特性：R404A是一種不含氯的非共沸混合制冷劑，常溫常壓下為無色氣體，貯存在鋼瓶內(nèi)是被壓縮的液化氣體。其 ODP 為 0 ，因此R404A是不破壞大氣臭氧層的環(huán)保制冷劑。主要用途：R404A 主要用于替代 R22 和 R502 ，具有清潔、低毒、不燃、制冷效果好等特點，大量用于中低溫冷凍系統(tǒng)。R-410A制冷劑物化特性：常溫常壓下， R410A 是一種不含氯的氟代烷非共沸混合制冷劑，無色氣體，貯存在鋼瓶內(nèi)是被壓縮的液化氣體。其 ODP 為 0 ，因此R410A是不破壞大氣臭氧層的環(huán)保制冷劑。主要用途：大量用于家用空調(diào)、小型商用空調(diào)、戶式中央空調(diào)等。</p><p style="text-indent:25px">新的解決方案是開發(fā)HFC族，來擔(dān)當(dāng)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(gòu)成了新的威脅。雖然全球變暖的因素很多，但因為空調(diào)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(biāo)準(zhǔn)34把許多物質(zhì)分類為制冷劑，但只有少部分用于商業(yè)空調(diào)。1985年2月英國南極考察隊隊長發(fā)曼（J.Farman)首先報道，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(fù)，引起世界性的震驚。制冷劑的主要技術(shù)指標(biāo)有飽和蒸氣壓強(qiáng)、比熱、粘度、導(dǎo)熱系數(shù)、表面張力等。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="梅蘭R407C企業(yè),制冷劑" src="https://tyunfile.71360.com/UploadFile/bingpu/637401017250659526/928915.png"></div><p style="text-indent:25px">制冷劑的排放一般指直接把制冷劑排放到空氣中，排放時，周圍環(huán)境一定要通風(fēng)良好，不能接近明火，否則要產(chǎn)生有毒氣體。1，關(guān)閉歧管壓力計上的高，低壓手動閥，連接其高，低壓軟管分別接在壓縮機(jī)高，低壓檢修閥上，中間管的自由端放在工作擦布上。2，慢慢打開高壓手動閥，讓制冷劑從中間軟管上排出，閥門不能開得太大，否則壓縮機(jī)內(nèi)的冷凍潤滑油會隨制冷劑替代。3，當(dāng)壓力表讀數(shù)降到0.35MPa以下時，再慢慢打開手動閥，使制冷劑從高，低壓雙向同時排出。4，觀察壓力表讀數(shù)，隨著壓力下降，逐漸開大高，低壓手動閥，直至高，低壓表的讀數(shù)指示為零。制冷劑性能優(yōu)良、無毒、不燃，能適應(yīng)不同的溫度區(qū)域，明顯地改善了制冷機(jī)的性能。梅蘭R407C企業(yè)</p><p style="text-indent:25px">制冷劑在冷凝器中將熱量傳遞給周圍空氣或水而冷凝。梅蘭R407C企業(yè)</p><p style="text-indent:25px">R-22（二氟一氯甲烷）制冷劑物化性質(zhì)：R22( Freon22，二氟一氯甲烷 Chlorodifuoromethane)，分子式CHClF2，分子量86.47。R-22在常溫下為無色，近似無味的氣體，不燃燒、無腐蝕、毒性極微，加壓可液化為無色透明的液體，為 HCFC 型制冷劑。主要用途：氟利昂-22 ，分子式：CHClF2，分子量：86.47。R-22較廣用于家用空調(diào)、中央空調(diào)和其它商業(yè)制冷設(shè)備；也可用作聚四氟乙烯樹脂的原料和滅火劑1121的中間體。產(chǎn)品包裝：鋼瓶包裝，凈重13.6kg/瓶、22.7kg/瓶、400kg/瓶、1000kg/瓶、ISO TANK。 R-123（二氯三氟乙烷）制冷劑物化性質(zhì)：三氟二氯乙烷（2,2－二氯化－1,1,1－三氟乙烷），分子式CF3CHCl2，分子量152.93，沸點 27.85 ℃，CAS注冊號：306－83－2 ，臭氧層消耗（ODP）0.02，全球變暖潛值（GWP）93，是一種替代R-11（F11）的HCFC型制冷劑。主要用途：R123 可替代 F-11 和 F-113 作清潔劑、發(fā)泡劑和制冷劑（中央空調(diào)/離心式冷水機(jī)組）。產(chǎn)品包裝：鋼桶包裝，250kg/桶。梅蘭R407C企業(yè)</p><p style="text-indent:25px">上海冰仆冷暖設(shè)備有限公司是一家銷售:制拎設(shè)備、化工產(chǎn)品(除危險化學(xué)品、監(jiān)控化學(xué)品、煙花爆竹、民用物品、易制毒化學(xué)品)、儀器儀表、汽車配件，機(jī)械配件、五金電器、焊接工具。銷售:制拎設(shè)備、化工產(chǎn)品(除危險化學(xué)品、監(jiān)控化學(xué)品、煙花爆竹、民用物品、易制毒化學(xué)品)、儀器儀表、汽車配件，機(jī)械配件、五金電器、焊接工具。的公司，致力于發(fā)展為創(chuàng)新務(wù)實、誠實可信的企業(yè)。冰仆冷暖設(shè)備深耕行業(yè)多年，始終以客戶的需求為向?qū)?，為客戶提?**的制冷劑廠家直銷，冷凍油廠家直銷，壓縮機(jī)批發(fā)銷售，制冷配件批發(fā)銷售。冰仆冷暖設(shè)備致力于把技術(shù)上的創(chuàng)新展現(xiàn)成對用戶產(chǎn)品上的貼心，為用戶帶來良好體驗。冰仆冷暖設(shè)備始終關(guān)注化工行業(yè)。滿足市場需求，提高產(chǎn)品價值，是我們前行的力量。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2871319.html</p></div></div></div></div></div><div id="o4y2wey" class="page-right twoColRt"><div id="g6kgg4w" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="owsoisc" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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