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为某化厂制造1台配硫酸装置的废热锅炉,由于该厂人员操作不妥,使得锅炉在无水状态下受到高温烟气的烘烤加热,且维持了相当长的时间。发现后将水灌入锅筒内,但亦未灌满。后发现前管板上半部分已变形。对其进行现场检测发现前管板的部分区域的微观组织存在回火索氏体,考虑到经济效益和节省
To make a waste heat boiler equipped with sulfuric acid plant for a certain plant, due to the improper operation of the plant, the boiler was roasted and heated by the high temperature flue gas under the anhydrous condition and maintained for a long time. After the water was found poured into the drum, but did not fill. After the upper half of the tube plate has been found deformed. On-site testing found that there is tempered sorbite in the microstructure of some regions of the front tube plate, taking into account the economic benefits and savings