抗燃油换油后酸值快速超标原因分析及处理

Cause Analysis and Treatment on Acid Value Exceeding Standard after Fire-Resistant Oil Change

甘肃某电厂调速系统抗燃油两次换油后,酸值短时间再次超标。为解决此问题,研究了不同温度及油中劣化产物对抗燃油酸值的影响,并进行了不同油处理介质对劣化油的再生处理效果试验。结果表明,残存在油系统中的劣化产物对油品的催化劣化作用,是造成换油后酸值短时间再次超标的主要原因;采用选择性强极性硅铝吸附剂,可将油系统中的劣化产物彻底去除,劣化油品处理后其酸值指标优于新油标准,油品的抗老化性能明显。甘肃某电厂将在线油净化装置滤芯更换为选择性强极性硅铝吸附剂,使问题得到彻底解决。

In a power plant of Gansu province, the acid value exceeded the relevant standard again shortly after twice of fire-resistant oil change for the governor system. In order to solve this problem, this paper studies the effects of temperatures and deteriorated products on the acid value of fire-resistant oil, and conducts test study on the regeneration effects of deteriorated oil treated by different media. The results show that the deteriorated products remaining in the oil system accelerates the deterioration, which is the major reason for the acid value exceeding the standard shortly after the oil change. The selective strong polar silicon aluminum adsorbent is capable of removing the deteriorated products from the oil system thoroughly such that the acid value of the processed oil is even better than that of fresh off, which exhibits excellent aging-resistant performance. Therefore, the power plant replaced the filter element with the selective strong polar silicon aluminum absorbent for the online oil purification device. In this way the problem has been completely resolved.