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1设备概况长沙某化工实业总公司SHL10-1.25/3 5 0-AII锅炉为1998年3月制造,1998年底开始安装,1999年5月投入使用。过热器为ф38mm×3.5mm,材质为20#,分低温组与高温组,均采用逆流布置。低温组的出口段布置在高温烟气的进口处。汽包汽水分离装置为:一次分离采用进口挡板和水下孔板,二次分离采用锅筒顶部填充ф6mm小孔瓷环。2003年9月首次出现过热器低温组爆管,换管后于2004年1月投入运行。到2005年1月过热器低温组第二次爆管,换管后于2005年4月投入运行。2006年9月,再次发生过热器低温爆管事故。
1 Equipment Overview Changsha a Chemical Industry Corporation SHL10-1.25 / 350-AII boiler manufactured in March 1998, the end of 1998 to begin the installation, put into use in May 1999. Superheater ф38mm × 3.5mm, made of 20 #, sub-low-temperature group and high-temperature group, are used counter-current layout. The outlet section of the low-temperature group is arranged at the inlet of the high-temperature flue gas. Drum steam separation device: a separation of the use of imported baffles and underwater plate, the second separation using the top of the pot to fill ф6mm small porcelain porcelain ring. In September 2003, for the first time, a superheater cryogenic tube burst occurred and was put into operation in January 2004 after it was replaced. To January 2005 superheater cryogenic group second burst, after the tube in April 2005 put into operation. In September 2006, the superheater burst pipe accident occurred again.