采暖工程水压试验施工方案无缝钢管聚氨酯保温管.pdfVIP

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2021-11-29 发布于湖北
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采暖工程水压试验施工方案无缝钢管聚氨酯保温管.pdf

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目录目录 ····························································································································································· 1· 采暖工程水压试验施工方案 ······················································································································· 1· 一、编制依据 ················································································································································· 1· 二、工程概况 ················································································································································· 1· 三、施工部署 ················································································································································· 1· 四、施工方案 ················································································································································· 1· 五、安全保护措施 ········································································································································· 2· 1 采暖工程水压试验施工方案一、编制依据《城镇供热管网工程施工及验收规范》 CJJ/28-2004 本工程施工图纸二、工程概况本工程采暖管线采用聚乙烯外护层聚氨酯保温管。管道设计压力为 1.0MPa，强度试验压力取设计压力的 1.5 倍为 1.5MPa，严密性试验取试验压力的 1.25 倍为 1.25MPa。采暖管道需在每个施工段完成后进行强度试验 , 在采暖管网全部完成后进行严密性试验 . 三、施工部署 1、施工器具准备压力泵、弹簧压力计 , 必要的连接管及阀门 , 管堵等 2 、场地布置及试验准备工作 (1) 水压点选在所试验管段的较低端，试验用水从低端灌入，将管内气体由高点排出； (2 ）注水口与压力泵连接管处应设置一阀门用以加压后保持水压。（3 ）水压前应检查管道所有出口封闭，无渗漏现象；（4) 水压试验前应清除管道杂物；（5 ）试验时环境温度不得低于 5℃，当环境温度低于