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室内热力管道安装有什么要求？

室内热力管道安装有什么要求？

浏览：46次 | 提问时间： 08-07 02:49

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不善表达 08-07 02:49

热力管道的安装要求： 1 热力管道通常采用架空或地沟敷设，为了便于排水和放气，管道安装时应设坡度，室内0.002，室外0.003，蒸汽管道的坡度应和介质流向相同，以避免噪声。每段管道最低点应设放水装置，最高点应设排气装置。与管道共设的蒸汽管道，常年或季节性连续供热的可不设坡度。但应装疏水装置，疏水器应装在管道的最低点，冷凝水容易集结的地方，流量孔板的前面。2 补偿器竖直安装时，如管道输送的是热水，应在补偿器的最高点安装放气阀，最低点装放水阀，如果输送的是蒸汽，应在最低点装疏水器或防水阀。3 两个补偿器之间（一般20--40m）以及每一个补偿器的两侧，应设置固定支架，两个固定支架之间应设导向支架。补偿器第一个支架应为活动支架，不设置导向支架和固定支架。4管道的底部应用点焊的形式装上高滑动托架，托架高度稍大于保温层的厚度。安装托架两侧的导向支架时要使滑槽与托架之间有3--5mm的间隙。5安装导向支架和活动支架的托架时，应考虑支架中心与托架中心一致，不能使活动支架热胀后偏移，靠近补偿器两侧的几个支架安装时应装偏心，其偏心的长度应是该点距固定点的管道热伸量的一半。偏心的方向都应以补偿器的中心为基准。6弹簧支架一般应装在有垂直膨胀伸缩而无横向膨胀伸缩之处，安装时必须保证弹簧能自由伸缩，弹簧吊架一般安装在垂直膨胀的横向、纵向均有伸缩处，吊架安装时，应偏向膨胀方向相反的一边。

遥不可及不是梦 08-07 02:58

1.隐蔽管道和整个采暖系统的水压试验结果，必须符合设计要求和施工规范规定。检验方法：检查系统或分区（段）试验记录。 2.管道固定支架的位置和构造必须符合设计要求和施工规范规定。检验方法：观察和对照设计图纸检查。3 伸缩器的安装位置必须符合设计要求，并应按有关规定进行预拉伸。检验方法：对照设计图纸检查和检查预拉伸记录。4 管道的对口焊缝处及弯曲部位严禁焊接支管，接口焊缝距起弯点、支、吊架边线必须大于50mm。检验方法：观察和尺量检查。5. 除污器过滤网的材质、规格和包扎方法必须符合设计要求和施工规范规定。检验方法：解体检查。

我会冷暖自知更会好自为之 08-07 03:06

管材、管件和阀门均应严格按照设计文件要求的规格、材质、等级进行选用，各种材料必须具有质量证明。安装施工前，应对施工图纸进行审查，组织编制管道安装施工技术方案并绘制管段安装单线图。安装施工前，应对施工人员进行施工技术交底，使施工人员熟悉掌握工程施工方法、施工程序、工艺技术措施和质量控制要求.热力管道预制时，必须充分考虑预制管段的预留位置和预制管段的吊装措施，热力管道上放空放净开孔均应在地面预制时完成。管线如设计要求补偿器安装时做预拉伸（压缩）时，则预拉伸（压缩）工作必须在膨胀节两侧的固定支架施工结束后方可进行膨胀节的预拉伸（压缩）。U型或π型补偿器预拉伸（压缩）安装时，应在补偿器安装就位且最后一道焊口未焊接前测量该焊口之间的间距，作为预拉伸（压缩）的数值。蒸汽热力管道安装时的坡度值应符合设计要求，当设计未规*，取0.003，坡度应流向管道的疏水点热水管道系统应在所有的高点和低点加置放空和放净点，蒸汽系统应在所有的低点加置放净点或疏水点。安全阀的出入口的支架应牢固可靠。安全阀出口如果直接排入大气，则应在出口处加置凝液排放孔热力管道系统的弹簧支架必须经预压缩（拉伸）合格后，在锁*状态下进行安装，并应保证弹簧支架的安装高度。弹簧支架的锁紧块应在系统投用前再拆除。热力管道支架必须严格按照设计规定进行安装。在两个膨胀节之间必须设置一个固定支架，固定支架应牢固可靠在吊装之前应完成管托的安装及管道、管托的油漆工作，预留焊口位置不刷油。

时间海 08-07 03:14

材料要求：1.1 管材：碳素钢管、无缝钢管。管材不得弯曲、锈蚀，无飞刺、重皮及凹凸不平现象。1.2 管件：无偏扣、方扣、乱扣、断丝和角度不准确现象。.1.3 阀门：铸造规矩、*刺、无裂纹、开关灵活严密，丝扣无损伤，直度和角度正确，强度符合要求，手*无损伤。有出厂合格证，安装前应按有关规定进行强度、严密性试验。1.4 其它材料：型钢、圆钢、管卡子、螺栓、螺母、油、麻、垫、电气焊条等。选用时应符合设计要求。

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