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通风管道工程安装有哪些要点？

通风管道工程安装有哪些要点？

浏览：31次 | 提问时间： 08-06 11:42

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原谅我不善言辞却爱你好深 08-06 11:43

有以下要点：1、对于比较复杂的民用建筑，在设计阶段，暖通、给水排水，供电照明与建筑等单位应协商好空间分隔，定出每种管道的标高范围。一般情况下不得越出给自己规定的界限，遇有个别管段要越界时应与其他工程协商。　　2、解决各种通风管道相碰及协调的原则，一般为：“小管让大管，有压让无压”。例如，自来水管与风管相撞，则应当自来水管拐弯。冷、热水管与下水管相碰，则应改变冷、热水管道。　　3、施工前应设备总管的工程师，将各工种的管线，单线画在一张平面图上。每种管道用一种彩*，在各交点处综合其标高，看是否有矛盾之处，及时发现，将问题解决在安装之前。　　4、为了减少投资，节省空间，降低层高，有些敷设无坡度要求的管道，可以穿过自来水管道、消防喷洒干管等来铺设。希望可以帮到你。

Alargecore 08-06 11:51

1.通风管道，安装前必须对产品进行认真地检查。验明有否合格证及产品说明书，以明确出厂时的定压情况，查产品铅封完好情况，查外观有无伤残。对铅封破坏，出厂定压不符合工程设计工作压力要求的，均应重新进行强度及严密性试验。这是为了安装过程中和使用过程中的安全性，防止通风管道安装完毕发现不能使用的情况的发生。 2.通风管道，安全阀的定压：以水压或气压试验的方法，按工作压力的要求进行定压。定压时，对弹簧安全阀应用螺丝*调整弹簧压紧螺栓通风管道，对杠杆式安全阀应使重锤在杠杆上微微滑动，直至压力表准确地指示要求的开启压力时，能开始泄放介质为止。定压的安全阀开启压力应为系统工作压力加30kPa。定压后，应在杠杆安全阀的杠杆重锤的两侧标明定压位置(用红油漆紧贴重锤划线或用锯条镊出定压位置线)。 3.安全阀安装时，当和设备及管道的连接为开孔焊接时通风管道图纸，其开孔直径应与安全阀公称直径相同。法兰连接的安全阀，开孔后焊上一段长度不超过120mm的法兰短管，以法兰连接的方法安装安全阀，螺纹连接的安全阀，开孔后焊上一段长度不超过100mm的外螺纹管，用螺纹连接的方法安装安全阀。这之间的尺寸严格要求，不能粗枝大叶，使得通风管道寿命降低。

第9梦 08-06 12:00

答：通风管道工程安装要点如下：1.风管项目规格表示的直径为内径，周长为内周长。2.风管制作安装项目中包括管件、法兰、加固框，但不包括吊托支架，吊托支架执行有关项目。3.风管制作安装项目中的主体，板材（指每10m2定额用量为11.6m2者），如设计要求厚度不同者可以换算，人工、机械不变。4.项目中的法兰垫料如设计要求使用品种不同者可以换算，但人工不变。5.塑料通风管道胎具材料摊销费的计算方法：塑料风管管件制作的胎具摊销材料费未包括在定额内，按以下规定另行计算：风管工程量在30m2以上的，每10m2风管的胎具摊销木材为0.06m3。风管工程量在30m2以下的，每10m2风管的胎具摊销木材为0.09m3。希望对你有所帮助！

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