【作者】 谢民；

【Author】 Xie Min;Hunan Valon Xiangtan Iron and Steel Group Co.,Ltd.;

【机构】 湖南华菱湘潭钢铁集团有限公司；

【摘要】 针对湘潭钢铁有限公司动力厂130 t/h燃气锅炉烟道系统振动严重超标的问题,通过对引风机及烟道系统的振动测试和分析,得出其振动的主要原因是因烟道内气流不均匀而出现了局部涡流、风机内出现旋转脱流以及形成二次流所致.经采取在风机内加装整流器、烟道内加装导向叶片及烟道系统加固等技术措施治理后,其振动大大降低,达到了预期目的.更多还原

【Abstract】 The vibration of the induced draft for the flue duct system of a gas-fired 130 t/h boiler was tested and analyzed. The results show that the vibration of the flue duct is caused by the local eddy which is resulted from the non-uniform flow and the fan is caused by the secondary flow which is resulted from the whirling flow-away. By installing a air flow rectifier in the fan, a damper in the duct and a reinforced structure for the whole flue duct system, the vibration was greatly decreased, which is a satisfactory result for the boiler owner.更多还原