Various measures were taken depending on whether acid circulated or not to keep the acid cooler in the safe area of anodic protection with a stable passive film and thereby lone service life.

• 针对停车期间酸是否循环提出不同的应对措施,以使酸冷却器位于阳极保护的安全区,确保钝化膜的稳定,延长设备的使用寿命。