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嘉峪关宏晟电热公司新3#锅炉为HG-1025/17.5-YM24型亚临界参数,单汽包自然循环,中间一次再热,单炉膛煤粉炉。于2007年12月9日投入运行。2009年5月在检修打压查漏时发现再热器管有1根管子泄漏,如图1所示。该管子材质为12Cr1MoV,规格为φ63.5×4mm。1新3#炉再热器管泄漏原因分析1.1破口形貌特征从图1可以看出:该破口并不太大,破口长43mm,
Jiayuguan Hongsheng Electric Company’s new 3 # boiler HG-1025 / 17.5-YM24-type subcritical parameters, single natural circulation package, the middle of a reheat, single-hearth pulverized coal furnace. On December 9, 2007 put into operation. In May 2009, it was found that there was a leak in the reheater tube when overhauling the leak, as shown in Figure 1. The pipe material is 12Cr1MoV, specifications for φ63.5 × 4mm. A new 3 # furnace reheater tube leakage analysis of 1.1 Breaking the topography features can be seen from Figure 1: The break is not too large, breaking length 43mm,