【2017年整理】管道工技师课件.ppt
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? (3)活接头:俗称“由任”,它安装在阀门附近或需经常拆卸的管道上。 ? (4)对丝:用来连接两个距离很近的配件,又称“内管箍”。 ? (5)补心:又称为“内外丝”,用于管径变化的连接处。 * * Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. ? (6)丝堵:又称“管塞”,用来堵塞管件的一端,或堵塞管道的预留口。 ? (7)弯头:包括45‘和90‘弯头,用来改变管道的方向。 * * Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. ? (8)三通:包括等径三通和异径三通,用于管道的分支和汇合处。 ? (9)四通:包括等径四通和异径四通,用于管道的十字形分支处。 * * Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. ?二、控制及调节配件 建筑给水系统中用来调节水量、水压,控制水流方向,以及关断水流,便于管道、仪表和设备检修的各类阀门。 * * Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 1.截止阀: 关闭严密,但水流阻力较大。常应用于DN50以下的管道中。 常用的阀门有: * * Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 2. 闸阀: 水流阻力小,但水中有杂质时易磨损阀座造成漏水。常应用于DN50以上的管道中; * * Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 3. 蝶阀: 阀板在90°翻转范围内可调节水流和关闭作用,启闭方便,结构紧凑,体积小。 * * 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. 4. 止回阀: 阻止管道中的水流反向流动。按结构不同来分,有旋启式和升降式。 消声止回阀 旋启式止回阀 * * Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 5. 浮球阀: 运用杠杆及浮力原理,当水位下降,浮球带动阀杆一端随之下降,阀芯离开密封面,阀门即开启供水;反之,阀门即关闭。 * * Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 6. 安全阀: 避免管网、用具或密闭水箱发生超压破坏。有弹簧式和杠杆式。 * * Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 给水管道材料、配件
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