消防管道安装有什么讲究吗?

消防管道安装有什么讲究吗?
2025-02-28 19:08:37
推荐回答(4个)
回答1:

认真熟悉图纸,根据施工方案、技术、安全交底的具体措施选用材料,测量尺寸,绘制草图,预制加工。并要安排合理的施工顺序,避免工种交叉作业干扰,影响施工。
一、消防喷洒管材应根据设计要求选用,一般采用镀锌碳素钢管及管件,管壁内外镀锌均匀,无锈蚀、无飞刺,零件无偏加、方扣、丝扣不全、角度不准等现象。
二、消火栓系统管材应根据设计要求选用,一般采用碳素钢管或无缝钢管,管材不得有弯曲、锈蚀、重皮及凹凸不平等现象。
三、喷洒管
1、干管安装: 喷洒管道一般要求使用镀锌管件(干管直径在100mm以上,无镀锌管件时采用焊接法兰连接,试完压后做好标记拆下来加工镀锌)。需要镀锌加工的管道应选用碳素钢管或无缝钢管,在镀锌加工前不允许刷油和污染管道。需要拆装镀锌的管道应先安排施工。 喷洒干管用法兰连接每根配管长度不宜超过6m,直管段可把几根连接在一起,使用倒链安装,但不宜过长。也可调直后,编号依次顺序吊装,吊装时,应先吊起管道一端,待稳定后再吊起另一端。管道连接紧固法兰时,检查法兰端面是否干净,采用3~5mm的橡胶垫片。法兰螺栓的规格应符合规定。紧固螺栓应先紧最不利点,然后依次对称紧固。法兰接口应安装在易拆装的位置。
2、消防喷洒分层干支管安装: 管道的分支预留口在吊装前应先预制好,丝接的用三通定位预留口,焊接可在干管上开口焊上熟铁管箍,调直后吊装。所有预留口均加好临时堵。 需要加工镀锌的管道在其它管道未安装前试压、拆除、镀锌后进行二次安装。 走廊吊顶内的管道安装与通风道的位置要协调好。 喷洒管道不同管径连接不宜采用补心,应采用异径管箍,弯头上不得用补心,应采用异径弯头,三通上最多用一个补心,四通上最多用两个补心。 向上喷的喷洒头有条件的可与分支干管顺序安装好。其它管道安装完后不易操作的位置也应先安装好向上喷的喷洒头。
四、消火栓系统干管安装应根据设计要求使用管材,按压力要求选用碳素钢管或无缝钢管。 管道在焊接前应清除接口处的浮锈、污垢及油脂。 当壁厚≤4mm,直径≤50mm时应采用气焊;壁厚≥45mm,直径≥70mm时应采用电焊。 不同管径的管道焊接,连接时如两管径相差不超过小管径的15%,可将大管端部缩口与小管对焊。如果两管相差超过小管径15%,应加工异径短管焊接。 管道对口焊缝上不得开口焊接支管,焊口不得安装,在支吊架位置上。 管道穿墙处不得有接口(丝接或焊接)管道穿过伸缩缝处应有防冻措施。 碳素钢管开口焊接时要错开焊缝,并使焊缝朝向易观察和维修的方向上。 管道焊接时先点焊三点以上,然后检查预留口位置、方向、变径等无误后,找直、找正,再焊接,紧固卡件、拆掉临时固定件。
五、消防管道安装工艺流程:
安装准备 → 干管安装 → 报警阀安装 → 立管安装 → 喷洒分层干支管、消火栓及支管安装 → 水流指示器、消防水泵、高位水箱、水泵结合器安装 → 管道试压 → 管道冲洗 → 喷洒头支管安装(系统综合试压及冲洗) → 节流装置安装 → 报警阀配件、消火栓配件、喷洒头安装 → 系统通水试调

回答2:

一般来说需要采用专门的供水管道,然后需要在建筑物主梁附近

回答3:

最后需要消防部门验收的

回答4:

一、首先必须满足消防规范
二、其次是要以美观为主,就是所谓的工艺
三、后者则是节约材料,减少浪费

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