我市彭高腐竹厂的一台 KZG1—8型卧式快装锅炉,运行不到三个月,就发生了爆管事故。爆破口在锅炉右侧后部第一根水冷壁管上,距联箱400毫米。面向炉膛,破口长32毫米,最宽处为11毫米。破口边壁厚明显减薄(见下图)。 我们将破坏的管子在破口附近锯断,发现下部距联箱约 80毫米的长管 Our city Peng Gao Yuba plant a KZG1-8 horizontal fast boiler, run less than three months, burst pipe accident occurred. The blasting mouth is on the first water wall tube on the right rear side of the boiler, 400 mm away from the header. Facing the hearth, the breach length is 32 mm and the widest point is 11 mm. Broken edge wall thickness was significantly thinner (see below). We saw the broken pipe near the breach and found that the lower part of the pipe was about 80 mm long from the header