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class="pic"><img src="https://tyunfile.71360.com/UploadFile/bingpu/637401017480278643/8413208.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="x5l7vzv" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/bingpu/637401017480278643/8413208.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="77dbhnx" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價(jià)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>上海冰龍R404A價(jià)格,制冷劑</p><p><span>***更新：</span>2021-01-20 06:18:10</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="vn77dx7" 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(hào)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="rzvn9fj" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="f9tzvhv" class="box"><p><p style="text-indent:25px">液氨制冷劑透明無色，氨蒸氣無色，有強(qiáng)烈的刺激臭味。氨對(duì)人體有較大的毒性，當(dāng)氨液飛濺到皮膚上時(shí)會(huì)引起凍著。當(dāng)空氣中氨蒸氣的容積達(dá)到0.5-0.6%時(shí)可引起。故機(jī)房?jī)?nèi)空氣中氨的濃度不得超過0.02mg/L。氨在常溫下不易燃燒，加熱至350℃時(shí)，分解為氮和氫氣，氫氣與空氣中的氧氣混合后會(huì)發(fā)生。與空氣混合的體積分?jǐn)?shù)在11%-14%時(shí)即可燃燒。在16%-25%時(shí)遇明火可能，上海冰龍R404A價(jià)格。在0.5%-0.6%時(shí)，人在其中停留半小時(shí)就會(huì)中毒，上海冰龍R404A價(jià)格，上海冰龍R404A價(jià)格。氨極溶于水，0℃時(shí)每升水能溶解130升氨氣。一般規(guī)定液氨中含水量低于0.2%。60年代開始使用非共沸制冷劑。上海冰龍R404A價(jià)格</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海冰龍R404A價(jià)格,制冷劑" src="https://tyunfile.71360.com/UploadFile/bingpu/637401017480278643/8413208.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(shí)，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(jì)上的高，低壓手動(dòng)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(dòng)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(rùn)滑油會(huì)隨制冷劑替代。3，當(dāng)壓力表讀數(shù)降到0.35MPa以下時(shí)，再慢慢打開手動(dòng)閥，使制冷劑從高，低壓雙向同時(shí)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(dòng)閥，直至高，低壓表的讀數(shù)指示為零。上海東岳R410A供應(yīng)共沸制冷劑由兩種或兩種以上的制冷劑按一定的比例混合而成。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海冰龍R404A價(jià)格,制冷劑" src="https://tyunfile.71360.com/UploadFile/bingpu/637401016836011058/5056076.png"></div><p style="text-indent:25px">冰箱系統(tǒng)抽程控的時(shí)候把已經(jīng)鎖上的高低壓閥門打開，開始進(jìn)行正式的系統(tǒng)抽空工作，制冷系統(tǒng)如果已經(jīng)被抽成程真空的時(shí)候關(guān)閉高低壓閥門再關(guān)閉真空泵。這個(gè)時(shí)候制冷系統(tǒng)處于真空狀態(tài)，就可以添加制冷劑了，把黃色管與真空本斷開街道制冷劑的并口上，打開制冷劑瓶子的氣門芯，黃色管里的空氣排凈后倒轉(zhuǎn)制冷劑瓶放好，打開高低壓閥門加入制冷劑。制冷劑加的差不多之后再把高低壓閥門關(guān)閉，放好制冷劑瓶，這樣冰箱制冷劑的添加就完成了。雖然冰箱制冷劑的添加看著簡(jiǎn)單，其實(shí)細(xì)節(jié)方面容易出錯(cuò)，所以還是建議大家找專業(yè)的人員來添加制冷劑，如果對(duì)自己有信心也可以自己完成冰箱制冷劑的添加。</p><p style="text-indent:25px">制冷劑需有良好的電氣絕緣性。經(jīng)濟(jì)性，要求工質(zhì)低廉，易于獲得。環(huán)保性，要求工質(zhì)的臭氧消耗潛能值（ODP）與全球變暖潛能值（GWP）盡可能小，以減小對(duì)大氣臭氧層的破壞及引起全球氣候變暖。共沸制冷劑：由兩種或兩種以上的制冷劑按一定的比例混合而成，在氣化或液化過程中，蒸汽成分與溶液成分始終保持相同；在既定壓力下，發(fā)生相變時(shí)對(duì)應(yīng)的溫度保持不變。非共沸制冷劑：由兩種或兩種以上的制冷劑按一定的比例混合而成。在定壓下氣化或液化過程中，蒸汽成分與溶液成分不斷變化，對(duì)應(yīng)的溫度也不斷變化。制冷劑是制冷機(jī)中完成熱力循環(huán)的工質(zhì)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海冰龍R404A價(jià)格,制冷劑" src="https://tyunfile.71360.com/UploadFile/bingpu/637401016747866928/2112113.png"></div><p style="text-indent:25px">制冷劑低壓端加注：從壓縮機(jī)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(diǎn)是加注速度慢，可在系統(tǒng)補(bǔ)充制冷劑的情況下使用。操作步驟：1）、將歧管壓力計(jì)與壓縮機(jī)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(jì)上的螺母，直到聽見有制冷劑蒸氣流動(dòng)聲，然后擰緊螺母。從而排出注入軟管中的空氣。3)關(guān)閉手動(dòng)高壓閥，將制冷劑鋼瓶直立，起動(dòng)發(fā)動(dòng)機(jī)，使空調(diào)壓縮機(jī)運(yùn)轉(zhuǎn)，打開低壓手動(dòng)閥，讓氣態(tài)制冷劑從低壓側(cè)進(jìn)入壓縮機(jī)，當(dāng)系統(tǒng)的壓力值達(dá)到0.4MPa時(shí)，關(guān)閉低壓手動(dòng)閥和制冷劑罐開關(guān)閥。4)起動(dòng)發(fā)動(dòng)機(jī)，將空調(diào)開關(guān)接通，并將鼓風(fēng)機(jī)開關(guān)和溫控開關(guān)都調(diào)至較大。5)再打開歧管壓力計(jì)上的手動(dòng)閥，讓制冷劑繼續(xù)進(jìn)入制冷系統(tǒng)，直至加注量達(dá)到規(guī)定值。制冷劑與潤(rùn)滑油需有良好互溶性。上海東岳R410A供應(yīng)</p><p style="text-indent:25px">要求制冷劑在高溫下具有良好的化學(xué)穩(wěn)定性，保證在較高工作溫度下工質(zhì)不發(fā)生分解。上海冰龍R404A價(jià)格</p><p style="text-indent:25px">氟利昂和烷氫類制冷劑：烷氫類化合物的分子通式：CmH2m+2；氟利昂是飽合碳?xì)浠衔?烷族)的鹵族元素衍生物的總稱，分子通式為R（m-1）(n+1)(X),若有Br（溴）原子，再加字母B和原子數(shù)，若（m-1）=0，則“0”略去不寫。下面列舉幾種編號(hào)：名稱分子式m,n,x,z值編號(hào)；一氯二氟甲烷CHF2Clm=1,n=1,x=2,z=0R22；二氯撒氟乙烷C2HF3Cl2m=2,n=1,x=3,z=0R123；三氟一溴甲烷CF3Brm=1,n=0,x=3,z=1R13B1；丙烷C3H8m=3,n=8,x=0,z=0R290?；旌现评鋭；旌现评鋭┮垣@取命名的順序編號(hào)的；共沸混合制冷劑編號(hào)為R5，從R500開始R501,R502等。非共沸混合制冷劑編號(hào)為R4，從R401，R404，R410等。同素異構(gòu)體加注小寫數(shù)字母，如CHF2-CHF2R134,CF3-CH2FR134a。上海冰龍R404A價(jià)格</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(xiǎn)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(xiǎn)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(shí)、誠(chéng)實(shí)可信的企業(yè)。冰仆冷暖設(shè)備擁有一支經(jīng)驗(yàn)豐富、技術(shù)創(chuàng)新的專業(yè)研發(fā)團(tuán)隊(duì)，以高度的專注和執(zhí)著為客戶提供制冷劑廠家直銷，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)備不斷開拓創(chuàng)新，追求出色，以技術(shù)為先導(dǎo)，以產(chǎn)品為平臺(tái)，以應(yīng)用為重點(diǎn)，以服務(wù)為保證，不斷為客戶創(chuàng)造更高價(jià)值，提供更優(yōu)服務(wù)。冰仆冷暖設(shè)備創(chuàng)始人徐佳華，始終關(guān)注客戶，創(chuàng)新科技，竭誠(chéng)為客戶提供良好的服務(wù)。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2927914.html</p></div></div></div></div></div><div id="x97pb7h" class="page-right twoColRt"><div id="xfhdjnh" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="r7bxt9v" class="recomPic likePro"><a 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