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1 概况我市某化纤厂共有7台蒸汽锅炉,1964年建厂时装有四台SHL20—13型锅炉,后又陆续扩建三台SHS35—1.27型锅炉。这个厂基本上每隔5～6年因腐蚀穿孔漏水,就得进行大修全部更换受热面管子,1~#2~2炉还更换了锅筒及集箱,新装的锅炉1—2年就开始腐蚀,2—3年就开始泄漏,运行中对流管经常因腐蚀穿孔泄漏而被迫停炉检修(堵管)。虽然采取了给水除氧等措施,然而腐蚀问题始终没有得到有效的控制。1992年我们到该厂进行调查研究,初步找到了该厂锅炉腐蚀原因所在,并进行了处理。经过两年的实践检验,腐蚀穿孔漏水问题基本得到了控制。
1 Overview The city of a chemical fiber plant a total of seven steam boilers, 1964 fashion construction with four SHL20-13 boiler, and then gradually expand the three SHS35-1.27 boiler. The plant basically every 5 to 6 years due to corrosion perforation, you have to overhaul all the heat pipe replacement, 1 ~ # 2 ~ 2 furnace also replaced the drum and header, the newly installed boiler 1-2 years began Corrosion, 2-3 years began to leak, run-time convection pipe often due to corrosion and perforation leak was forced outage inspection (plugging). Although taken measures such as water supply oxygen, but the corrosion problem has not been effectively controlled. In 1992, we went to the factory for investigation and study, initially found the reason for the boiler corrosion of the plant, and processed. After two years of practical testing, the problem of corrosion and perforation leakage has basically been brought under control.