導熱油質(zhi)量差表現(xian)(xian)在以下幾(ji)個方面。首先(xian),導(dao)(dao)(dao)熱(re)(re)油(you)(you)(you)在儲存和運輸過(guo)(guo)程中(zhong)與空氣中(zhong)的水分混合或(huo)吸附在一(yi)起。當摻有水分的導(dao)(dao)(dao)熱(re)(re)油(you)(you)(you)加熱(re)(re)到(dao)100℃時(shi)(shi)(shi),會(hui)簡(jian)單地導(dao)(dao)(dao)致沸(fei)騰的油(you)(you)(you)溢出,引起火災或(huo)爆(bao)炸。其次,導(dao)(dao)(dao)熱(re)(re)油(you)(you)(you)中(zhong)殘留(liu)的碳超標。換熱(re)(re)系(xi)統在加熱(re)(re)運行(xing)過(guo)(guo)程中(zhong),傳熱(re)(re)介(jie)質(zhi)在高(gao)溫作用(yong)下會(hui)發生(sheng)(sheng)一(yi)些裂解和冷(leng)凝(ning)反應(ying),會(hui)產生(sheng)(sheng)一(yi)定量的膠體(ti)聚(ju)合物(wu),一(yi)些過(guo)(guo)熱(re)(re)的介(jie)質(zhi)也會(hui)產生(sheng)(sheng)焦炭。這(zhe)(zhe)些高(gao)聚(ju)物(wu)和殘余碳不溶于油(you)(you)(you),懸浮在油(you)(you)(you)中(zhong)。這(zhe)(zhe)些物(wu)質(zhi)會(hui)沉積(ji)在汽(qi)包底部(bu)而(er)過(guo)(guo)熱(re)(re),會(hui)沉積(ji)在管壁(bi)上(shang)而(er)過(guo)(guo)熱(re)(re)爆(bao)裂。因(yin)此,需(xu)要按(an)時(shi)(shi)(shi)對導(dao)(dao)(dao)熱(re)(re)油(you)(you)(you)進行(xing)取樣(yang)分析,及(ji)時(shi)(shi)(shi)掌握油(you)(you)(you)品質(zhi)量變化,分析變化原因(yin),及(ji)時(shi)(shi)(shi)對新的導(dao)(dao)(dao)熱(re)(re)油(you)(you)(you)進行(xing)補償,使殘炭基穩(wen)定。鍋(guo)爐中(zhong)的導(dao)(dao)(dao)熱(re)(re)油(you)(you)(you)需(xu)要提前脫水。如果發現(xian)(xian)問題,應(ying)及(ji)時(shi)(shi)(shi)采取相應(ying)措施。