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近年,随着国产原油变重、酸值增加、进口燃料油含硫量较高,腐蚀已成为石油化工行业普遍存在的现象,特别是冷换设备的腐蚀,严重影响企业的安全、平稳、长周期的生产。为保证设备的使用寿命,对设备的耐腐蚀性提出越来越高的要求。现在,在石油炼制等成套生产装置中,各类换热器约占整个设备投资的20～40%,从使用到维护,防腐问题已成为企业经营与技术管理共同关心的焦点。
In recent years, with the increase of domestic crude oil, the increase of acid value and the high sulfur content of imported fuel oil, corrosion has become a common phenomenon in the petrochemical industry, especially the corrosion of cold exchange equipment, which seriously affects the safety, smoothness and long Cycle production. In order to ensure the service life of the equipment, higher and higher requirements are put forward on the corrosion resistance of the equipment. Now, in complete sets of oil refining equipment, all types of heat exchangers account for about 20-40% of the total investment in equipment. From the use to maintenance, the anti-corrosion problem has become the common concern of both business operation and technical management.