導熱油質(zhi)(zhi)量差表現在(zai)(zai)以(yi)下(xia)幾個方(fang)面。首先,導(dao)(dao)熱(re)油(you)(you)在(zai)(zai)儲存和運輸過(guo)(guo)程中(zhong)(zhong)與空氣中(zhong)(zhong)的(de)(de)水分混合或(huo)吸(xi)附在(zai)(zai)一(yi)起(qi)。當摻有(you)水分的(de)(de)導(dao)(dao)熱(re)油(you)(you)加熱(re)到100℃時(shi)(shi)(shi),會簡單地導(dao)(dao)致沸騰的(de)(de)油(you)(you)溢出,引起(qi)火災或(huo)爆(bao)炸。其(qi)次,導(dao)(dao)熱(re)油(you)(you)中(zhong)(zhong)殘(can)留的(de)(de)碳超標。換(huan)熱(re)系(xi)統(tong)在(zai)(zai)加熱(re)運行過(guo)(guo)程中(zhong)(zhong),傳熱(re)介質(zhi)(zhi)在(zai)(zai)高溫作用下(xia)會發生一(yi)些裂解和冷凝反(fan)應,會產生一(yi)定(ding)量的(de)(de)膠體聚合物,一(yi)些過(guo)(guo)熱(re)的(de)(de)介質(zhi)(zhi)也會產生焦炭。這(zhe)些高聚物和殘(can)余碳不溶于油(you)(you),懸浮(fu)在(zai)(zai)油(you)(you)中(zhong)(zhong)。這(zhe)些物質(zhi)(zhi)會沉積在(zai)(zai)汽(qi)包底部而過(guo)(guo)熱(re),會沉積在(zai)(zai)管壁上而過(guo)(guo)熱(re)爆(bao)裂。因(yin)(yin)此,需(xu)(xu)要(yao)按時(shi)(shi)(shi)對導(dao)(dao)熱(re)油(you)(you)進行取樣分析,及時(shi)(shi)(shi)掌握油(you)(you)品質(zhi)(zhi)量變化,分析變化原因(yin)(yin),及時(shi)(shi)(shi)對新的(de)(de)導(dao)(dao)熱(re)油(you)(you)進行補償,使殘(can)炭基穩定(ding)。鍋(guo)爐中(zhong)(zhong)的(de)(de)導(dao)(dao)熱(re)油(you)(you)需(xu)(xu)要(yao)提前脫水。如果發現問題,應及時(shi)(shi)(shi)采取相應措施。