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家装水管施工工艺是怎样的？

家装水管施工工艺是怎样的？

浏览：35次 | 提问时间： 06-18 10:20

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勿 06-18 10:21

水管施工工艺：施工流程：安装准备—预制加工—管道安装—管道试压—管道防腐和保温—管道冲洗1、安装准备认真熟悉图纸，参看土建结构图、装饰装修图、有关设备专业图，核对各种管道的坐标标高是否有交叉，管道排列所占空间是否合理，有问题及时与设计和有关人员研究解决，办理变更洽商记录。根据设计图纸检查、核对预留孔洞大小是否正确，将管道坐标、标高位置画线定位。2、预制加工根据图纸要求并结合实际情况，按预留口位置测量尺寸，绘制加工草图。根据草图量好管道尺寸，进行断管。断口要平齐，用铣刀或刮刀除掉断口内外飞刺，外棱铣出15°角。粘接前应对承插口先插入试验，不得全部插入，一般为承口的3/4深度。试插合格后，用棉布将承插口需粘接部分的水分、灰尘擦拭干净。如有油污需乙丙酮除掉。用毛刷涂抹粘接剂，先涂抹承口后涂抹插口，随即用力垂直插入，插入粘接时将承口稍作转动，以利粘接剂分布均匀，约30秒至一分钟即可粘接牢固。牢固后立即将溢处的粘接剂擦拭干净。3、管道安装(1)按管道系统和卫生设备的设计位置，结合设备排水口的尺寸与排水管管口施工要求，配合土建结构施工，在墙、梁和楼板上预留管口或预留管件；(2)检查各预留孔洞的位置和尺寸并加以贯通；(3)按管道的走向及各管段的中心线标记进行测量，绘制实测小样图，并详细注明尺寸；(4)按实测小样图选定合格的管材和管件，进行配管和裁管。预制的管段配制完成后应按小样图核对节点间尺寸及管件接口朝向；(5)按规范选定支承件和固定支架形式，并确定支承件规格和数量；(6)土建墙面粉刷后，可将材料和预制管段运至安装地点，按预留管口位置及管道中心线，依次安装管道和伸缩节，并连接各管口；(7)在需要安装防火套管或阻火圈的楼层，先将防火套管或阻火圈套在管段外，然后进行管道接口连接；(8)管道安装应自下而上分层进行，先安装立管，后安装横管，连续施工；(9)管道系统安装完毕后，对管道的外观质量和安装尺寸进行复核检查，复查无误后，作通水试验。4、管道试压埋地管道、管井内立管、吊顶内横支管及有防结露要求的管道在隐蔽前需进行灌水试验。其灌水高度不应低于底层卫生器具的上边缘或底层地面高度，灌水15min后，再灌满观察5min，液面不下降，管道及接口无渗漏为合格。卫生间支管灌水试验，如果每层需要作闭水试验，气囊的安放有两种办法：一种是边安装边作，安装完成一层排水横支管，从三通甩口处放下气囊;一种是最后统一作，该层有检查口的，将气囊安设在检查口上方;该层无检查口的，将气囊接出一根5m长的气管(可用氧气带子)，将气囊从上层检查口慢慢往下放，估计气囊位于三通下方即可。试压前通知有关人员，合格后验收签字，办理工序交接手续。然后把水泄净，再进行下道隐蔽工序工作。5、管道防腐和保温在管道防腐上给水管道铺设与安装的防腐均按设计要求及国家验收规范施工，所有型钢支架及管道镀锌层破损处和外露丝扣要补刷防锈漆。管道保温要按设计及业主要求，敷设于地下一层、设备层的给水管道采用40mm厚玻璃棉管壳保温，镀锌铁丝绑扎后，外包复合铝箔。6、管道冲洗管道安装过程成会造成管道污染，所以安装完后要进行管道冲洗干净，一般来说直接通水，把水开到最大，让水流冲刷水管即可。

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