中原油田采油二厂的4台KZL4-13型汽改水锅炉,近年来由于水质差腐蚀严重。每年需更换烟管等大修费用约万余元。为了解决这一问题,该厂从提高烟管耐腐蚀性着手,根据金属表面防腐原理将要更换的新烟管喷砂除锈后,在其外表面喷涂0.02mm厚的铝层,外涂耐高温防腐漆。喷涂后的烟管经两个冬季运行效果良好,出口水温从65C提高到75℃;停炉检查未再发现烟管腐蚀现象;预计使用寿命可达10年,节资10万元。 Zhongyuan Oilfield Production Plant 4 KZL4-13-steam water boiler, in recent years because of poor water quality corrosion serious. Need to replace the tobacco pipe and other overhaul costs about ten thousand yuan each year. In order to solve this problem, the factory starts from improving the corrosion resistance of the tobacco pipe, and according to the principle of anti-corrosion of the metal surface, the new pipe after sandblasting and rust removal will be sprayed with a 0.02mm-thick aluminum layer on the outer surface of the tobacco pipe, Anti-corrosion paint. After spraying, the smoke pipe runs well in two winters and the outlet water temperature is increased from 65C to 75 ℃. No corrosion of the tobacco pipe is found after stopping the furnace inspection. The estimated service life is up to 10 years with a saving of 100,000 yuan.