目前,钻井用的大功率柴油机采用的是湿式缸套,即循环冷却水直接与缸套外表面接触。这样,当发动机运转一段时间后,缸套外表面腐蚀严重,影响了冷却效果,严重时缸套穿孔,冷却水渗入缸内,造成水击等恶性事故。为此,本文将谈谈有关柴油机缸套的腐蚀与防腐问题。 At present, the high-power diesel engine used in drilling is a wet cylinder liner, that is, the circulating cooling water is in direct contact with the outer surface of the liner. In this way, when the engine is running for a period of time, the outer surface of the cylinder liner is seriously corroded, affecting the cooling effect. In severe cases, the cylinder liner is perforated and the cooling water penetrates into the cylinder, causing water hammer and other serious accidents. To this end, this article will talk about the diesel cylinder liner corrosion and corrosion problems.