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马鞍山发电厂一台SG230/46-480次高压锅炉于1973年12月投产,经改造过热器和汽水分离器后,使锅炉的出力达到了200吨/时。该炉运行7500小时后就发生了二级省煤器穿墙管磨穿被迫停炉的事故。运行至27000小时后,省煤器管就发生频繁的磨穿泄漏事故(基本上每月一次)。运行30000小时后,发展至每周发生一次磨穿泄漏事故。省煤器工作了34000小时就被全部更换。
Ma On Shan Power Plant a SG230 / 46-480 high-pressure boilers put into operation in December 1973, after the reform superheater and water separator, the boiler output reached 200 tons / hour. 7500 hours after the operation of the furnace on the secondary economizer through the wall wear mill was forced to shut down the accident. After 27,000 hours of operation, economizer tubes frequently wear and tear (essentially once a month). After 30,000 hours of operation, the wear and tear development took place once a week. The economizer worked 34,000 hours and was completely replaced.