【2017年整理】5、锅炉事故与处理.ppt

锅炉故障、事故应急处理与预防的要求;第一节 锅炉事故分类与原因;1、爆炸事故:指锅炉在使用中或试压中发生的破裂,使压力瞬间降至等于外界大气压力的事故。 2、重大事故:指锅炉由于受压部件严重损坏(如变形、渗漏),附件损坏或炉膛爆炸等被迫停止运行,必须进行修理的事故。 3、一般事故:指锅炉损坏程度不严重,不需要立即停止运行修理的事故。 锅炉爆炸时其伤害的威力饱和水要比饱和蒸汽大得多。 ;第二节 锅炉停炉;紧急停炉的操作步骤;2、临时停炉 ⑴停止给煤，将火压好，使锅炉水位稍高于正常水位。 ⑵关小炉门和烟道门，使炉膛内有少量空气通过，防止可燃气体的爆炸、燃烧。有省煤器、过热器的锅炉，按有关规定执行。 3、正常停炉：停止给煤、减少鼓风、引风，将燃料燃尽，将灰渣除净。燃烧装置冷却后，停止鼓风、引风。 19、锅炉停炉后，按有关规定进行保养，防止锅炉发生腐蚀，保养期间应定期检查和更换药品。 ;第三节 锅炉常见故障处理及预防措施;Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.;Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.;Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.;Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.;Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.;Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.;Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.;Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.;Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.;Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.;Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.;Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.;Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.;Evaluation only. Created with Aspose.Slides for .NET 3.5 Clien