產(chǎn)品詳情
R44A作為當(dāng)今廣泛使用的中低溫制冷劑,常應(yīng)用于冷庫、食品冷凍設(shè)備、船用制冷設(shè)備、工業(yè)低溫制冷、商業(yè)低溫制冷、交通運(yùn)輸制冷設(shè)備(冷藏車等)、冷凍冷凝機(jī)組、超市陳列展示柜等制冷設(shè)備。R44A是新裝制冷設(shè)備上替代氟利昂R22和R52的zui普遍的工業(yè)標(biāo)準(zhǔn)制冷劑(通常為低溫冷凍系統(tǒng))。名稱:R44A,HFC-44A分類:混合物,混合制冷劑分子量:97.6摩爾質(zhì)量:97.6g/mol臨界溫度:72℃臨界壓力:3.7MPa臨界密度:.4842g/cm3沸點(diǎn)(11.3KPa):-46.1℃CAS編號(hào):354-33-6/811-97-2/42-46-2液體密度(25℃):1.45g/cm3沸點(diǎn)下蒸發(fā)潛能KJ/Kg:2.1比熱(25℃)Kj/(kg.k):1.54破壞臭氧潛能值(ODP):全球變暖系數(shù)值(GWP):385等壓蒸氣比熱(3℃,11.3kPa):.21R47C制冷劑R47C是由R3R125和R134a按一定的比例混合而成的環(huán)保中高溫冷媒,使用于各種空調(diào)系統(tǒng)和非離心式制冷系統(tǒng)。
不經(jīng)常啟閉的銅內(nèi)螺紋球閥,也要定期轉(zhuǎn)動(dòng)手輪,對(duì)閥桿螺紋添加潤滑劑,以防咬住。室外氧氣截止閥,要對(duì)閥桿加保護(hù)套,以防雨、雪、塵土銹污。如閥門系機(jī)械待動(dòng),要按時(shí)對(duì)變速箱添加潤滑油。要經(jīng)常保持氧氣截止閥的清潔。要經(jīng)常檢查并保持氧氣截止閥另部件完整性。如手輪的固定螺母脫落,要配齊、不能湊合使用,否則會(huì)磨園閥桿上部的四方,逐漸失去配合可靠性,乃至不能開動(dòng)。不要依靠氧氣截止閥支持其它重物,不要在氧氣截止閥上站立。
在搪玻璃層臨近空間部位施焊時(shí),應(yīng)將搪玻璃表面、罐口、管口蓋嚴(yán),避免電焊渣飛濺,損壞搪玻璃面。搪玻璃設(shè)備的使用在使用中注意:1)嚴(yán)防任何金屬硬物掉進(jìn)容器,碰傷搪玻璃。盡量避免冷罐時(shí)加熱料,熱罐時(shí)加冷料。由于突然改變溫度,形成內(nèi)應(yīng)力,影響使用壽命。操作運(yùn)轉(zhuǎn)在使用夾套設(shè)備時(shí),應(yīng)徐徐進(jìn)行加壓、升溫,一般先通入.1MPa(表壓)壓力蒸汽,保持15分鐘后,再緩緩升壓、升溫(升壓速度以每1分鐘升.1MPa壓力為宜),在到罐的操作壓力為止,不管加熱或冷卻應(yīng)在允許溫度范圍內(nèi)進(jìn)行,我公司設(shè)備使用溫度~2℃,溫差熱沖擊12℃,冷沖擊11℃。
A10VSO100:
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A10VSO10:
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A10VSO18:
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A10VSO60:
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A10VSO71:
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AA10VSO100:
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AA10VSO140:
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AA10VSO71:
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