【摘要】 通过大型电站锅炉的冷态模拟试验获得了炉内和炉膛出口水平烟道流场的分布规律。对残余旋转引起锅炉烟道两侧烟气参数偏差的原因和规律进行了试验研究和分析,着重研究了采用反切风消减偏差的机理和合理方案。对克服因烟气偏差引起的过热器、再热器超温爆管事故具有一定的指导价值。更多还原

【Abstract】 Through the cold-state model test of a high-capacity boiler obtained is the flow field distribution within the boiler and at the furnace outlet horizontal gas pass. An experimental study and analysis is conduct-ed with respect to the reasons and governing laws of flue gas parameter deviation at both sides of the boiler gas duct caused by a remnant rotation with main focus on the mechanism of eliminating such a deviation by way of introducing anti-tangential air and the search for a rational version. This research work of the authors can provide useful guidance in eliminating excessively high temperature-related tube explosion failures of superheaters and reheaters caused by flue gas parameter deviations.更多还原