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測定石油産品的凝點的意義

发表时间：2020-05-22 10:58作者：得利特

測定石油産品的凝點的意義？

（1）對于含蠟的油品來說，石油産品的凝點可在某種程度上作爲估計石蠟含蠟的指標。

（2）石油産品的凝點用于表示絕緣油的牌號。

（3）根据我国的具体情况，对于电气设备来说，一般长江流域以南地区多采用10号变压器油；长江以北到山海关内，多采用25号变压器油；东北地区可采用25号变压器油，但也有采用45号变压器油；断路器一般采用45号变压器油。如果因为环境温度太低而使用的变压器油失去流动性，则变压器油就不能立即投入运行，否则使变压器内积热过多，威胁设备的安全运行；如果断路器失去流动性，会造成断路器跳闸动作缓慢，电弧不能及时熄灭，使接触点融化，造成设备损坏。

汽輪機油在運行中，溫度總在40攝氏度以上，一般情況是安全的。但如果冬季（在寒冷地區）停機，汽輪機油可能失去流動性，汽輪機啓動時容易扭壞大軸，所以在國家標准中規定是低于-7攝氏度。

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