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style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>蘇州冰龍制冷劑費(fèi)用,制冷劑</p><p><span>***更新：</span>2021-01-29 01:18:06</p><p><span id="click" >瀏覽次數(shù)：1次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="eksy08w" 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="uq00c2y" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="wksieqg" class="box"><p><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，蘇州冰龍制冷劑費(fèi)用。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)，蘇州冰龍制冷劑費(fèi)用，蘇州冰龍制冷劑費(fèi)用，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。碳?xì)渲评鋭儆谔烊还べ|(zhì)，因此對大氣無污染、對臭氧層無破壞和溫室效應(yīng)幾乎為零。蘇州冰龍制冷劑費(fèi)用</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="蘇州冰龍制冷劑費(fèi)用,制冷劑" src="https://tyunfile.71360.com/UploadFile/bingpu/637401015992475942/9194265.png"></div><p style="text-indent:25px">空調(diào)制冷劑過去選用R12，目前大多選用R134a?？紤]制冷劑的性質(zhì)。根據(jù)制冷劑的熱力性質(zhì)、物理性質(zhì)和化學(xué)性質(zhì)，選用那些無毒、不、不燃燒的制冷劑；選用制冷劑應(yīng)傳熱好、阻力小、與制冷系統(tǒng)用材料相容性好。考慮壓縮機(jī)的類型。不同的制冷壓縮機(jī)的工作原理有所不同。體積式壓縮機(jī)是通過縮小制冷劑蒸氣的體積提高其壓力的，一般選用單位體積制冷量大的制冷劑，如R134a,R22等。制冷劑的種類很多，隨著科學(xué)技術(shù)的進(jìn)步．新工質(zhì)不斷出現(xiàn)，以適宜于不同的制冷裝置。冰龍R404A供應(yīng)目前使用的制冷劑已達(dá)70～80種，并正在不斷發(fā)展增多。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="蘇州冰龍制冷劑費(fèi)用,制冷劑" src="https://tyunfile.71360.com/UploadFile/bingpu/637401016040376295/9954917.png"></div><p style="text-indent:25px">壓縮法回收：用壓縮的方法將制冷劑蒸發(fā)變成液體：從空調(diào)系統(tǒng)排出的制冷劑通過過濾干燥器，除去水分和雜質(zhì)，受吸氣壓力調(diào)節(jié)控制閥，部分液態(tài)制冷劑存留在儲液罐中，氣態(tài)制冷劑進(jìn)入壓縮機(jī)被壓縮成高溫高壓氣體，通過分油器時，與制冷劑混合的冷凍潤滑油被分離出來，流回壓縮機(jī)，制冷劑則進(jìn)入冷凝器被冷卻，通過氣液分離器，被冷凝的液態(tài)制冷劑流到回收容器，回收容器中的部分氣態(tài)制冷劑會通過毛細(xì)管被壓縮機(jī)吸入。抽真空是為了排除制冷系統(tǒng)內(nèi)的空氣和水氣，是空調(diào)維修中一項(xiàng)極為重要的程序。因?yàn)閷χ评湎到y(tǒng)進(jìn)行維修或更換元件時，空氣會進(jìn)入系統(tǒng)，且空氣中含有一定量的水蒸氣(濕空氣)。系統(tǒng)抽真空時，時間越長，系統(tǒng)內(nèi)殘余的水分就越少。為較大限度地將系統(tǒng)內(nèi)的空氣及濕氣抽出，必須采用重復(fù)抽真空法，即首先次抽真空完畢后，再連續(xù)抽30min以上。</p><p style="text-indent:25px">R134a的化學(xué)穩(wěn)定性很好，然而由于它的溶水性比R22高，所以對制冷系統(tǒng)不利，即使有少量水分存在，在潤滑油等的作用下，將會產(chǎn)生酸、二氧化碳或一氧化碳，將對金屬產(chǎn)生腐蝕作用，或產(chǎn)生“鍍銅”作用，所以R134a對系統(tǒng)的干燥和清潔要求更高。R134a對鋼、鐵、銅、鋁等金屬未發(fā)現(xiàn)有相互制冷劑化學(xué)反應(yīng)的現(xiàn)象，*對鋅有輕微的作用。R134a 是目前國際公認(rèn)的替代 CFC-12 的主要制冷工質(zhì)之一，常用于車用空調(diào)，商業(yè)和工業(yè)用制冷系統(tǒng)，以及作為發(fā)泡劑用于硬塑料保溫材料生產(chǎn)，也可以用來配置其他混合致冷劑，如 R 404a 和 R 407c 等。R410A 是一種不含氯的氟代烷非共沸混合制冷劑。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="蘇州冰龍制冷劑費(fèi)用,制冷劑" src="https://tyunfile.71360.com/UploadFile/bingpu/637401017138159502/1880172.png"></div><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。氨對人體有較大的毒性，當(dāng)氨液飛濺到皮膚上時會引起凍著。當(dāng)空氣中氨蒸氣的容積達(dá)到0.5-0.6%時可引起。故機(jī)房內(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，分解為氮和氫氣，氫氣與空氣中的氧氣混合后會發(fā)生。與空氣混合的體積分?jǐn)?shù)在11%-14%時即可燃燒。在16%-25%時遇明火可能。在0.5%-0.6%時，人在其中停留半小時就會中毒。氨極溶于水，0℃時每升水能溶解130升氨氣。一般規(guī)定液氨中含水量低于0.2%。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)。冰龍R404A供應(yīng)</p><p style="text-indent:25px">R134a 是目前國際公認(rèn)的替代 CFC-12 的主要制冷工質(zhì)之一。蘇州冰龍制冷劑費(fèi)用</p><p style="text-indent:25px">制冷劑飽和蒸氣的溫度與壓力呈對應(yīng)關(guān)系，若已知制冷劑的蒸發(fā)溫度即可查出相對應(yīng)的蒸發(fā)壓力。此壓力的表壓值由高、低壓壓力表顯示出來。因此，根據(jù)安裝在系統(tǒng)上壓力表的壓力值即可判斷制冷劑的充注量是否宜適。例如：空調(diào)器的蒸發(fā)溫度為7.2℃，冷凝溫度為54.5℃使用R22。查R22的飽和溫度與飽和壓力對應(yīng)表，以確定其蒸發(fā)壓力值和冷凝壓力值。查表可知：R22在7.2℃時相應(yīng)相對壓力值為0.53Mpa(5.3kg/cm2)和54.5℃時的相應(yīng)相對壓力值為2.11Mpa(21.1kg/cm2)，將此壓力換算為表壓值即可。用高、低壓壓力表或復(fù)合式壓力表測試充氟中的制冷系統(tǒng)，若高、低壓力表表壓值符合上述范圍即表明制冷劑的充注量合適;若高、低壓壓力均低則表明充入量不夠;若高、低壓壓力均高，則表明充入量過多。壓力測定法較為簡便，在維修時經(jīng)常作用，但是缺點(diǎn)是比較粗，準(zhǔn)確度不高。蘇州冰龍制冷劑費(fèi)用</p><p style="text-indent:25px">上海冰仆冷暖設(shè)備有限公司致力于化工，是一家貿(mào)易型公司。冰仆冷暖設(shè)備致力于為客戶提供良好的制冷劑廠家直銷，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，一切以用戶需求為中心，深受廣大客戶的歡迎。公司將不斷增強(qiáng)企業(yè)重點(diǎn)競爭力，努力學(xué)習(xí)行業(yè)知識，遵守行業(yè)規(guī)范，植根于化工行業(yè)的發(fā)展。冰仆冷暖設(shè)備立足于全國市場，依托強(qiáng)大的研發(fā)實(shí)力，融合前沿的技術(shù)理念，飛快響應(yīng)客戶的變化需求。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/3055130.html</p></div></div></div></div></div><div id="ye8aiyo" class="page-right twoColRt"><div id="800w8yu" 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