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无负压变频供水设备的二次供水单位需要办理卫生许可证。
二次供水卫生许可证发放标准
1、二次供水方式
⑴ 市政供水管网→低位水箱→水处理设备→变频供水设备→用户;
⑵ 市政供水管网→低位水箱→供水设备→高位水箱→水处理设备→用户;
⑶ 市政供水管网→无负压、无吸程供水设备→用户。
2、设施的环境要求
⑴ 二次供水设施应安装在便于卫生防护的构筑物内,供水管线单向供水,不得与非生活饮用水管线连通。
⑵供水设施周围 保持环境整洁10m以内不得有渗水坑、堆放垃圾等污染源,水箱周围 2m内不应有污水管线及污染物,应有很好的排水条件,供水设施应运转正常。
3、供水设备
⑴使用的设备:不锈钢水箱、搪瓷钢板水箱、SMC玻璃钢水箱、无负压、无吸程供水设备、消毒设备(含水处理设备)、水泵、管材、阀门等。
⑵第三批淘汰及限制使用产品:高层楼房二次供水水泥水箱、普通钢板水箱
4、水箱要求
⑴水箱周边距构筑物距离不小于60公分
⑵水箱观察孔高于水箱顶部平面5公分以上且有倒扣盖并加锁;水箱顶部距构筑物顶部之间距离不得小于80公分;水箱顶部透气管罩不得少于2个。
⑶水箱必须安装在有排水条件的底盘上,泄水管应设在水箱的底部,溢水管与泄水管均不得与下水管道直接连通,水箱的容积设计不得超过用户 48h的用水量。
⑷选用的水箱内外壁必须光滑、洁净、平整。水箱的出水管处必须安装饮用水处理装置(如:消毒设备);水箱应设置内梯和外梯,便于卫生维护。
5、构筑物的要求
⑴地面铺设防滑瓷砖,且有一定坡度在千分之五左右;
⑵构筑物顶部及墙壁应贴瓷砖或涂刷防水防霉涂料(颜色以白色为佳);
⑶设备间墙壁上应安设通风扇或相似设备;
⑷在墙壁的适当位置悬挂彩色喷绘塑板制作的卫生管理制度及供水工艺流程图、卫生许可证;
5、所选用的水箱、饮用水处理装置(消毒设备)、供水设备及管材、管件必须有省级以上卫生行政部门颁发的卫生许可批件。
6、用无负压、无吸程供水设备为供水方式的卫生要求:
⑴设备必须首先取得省级卫生行政部门颁发的卫生许可批件,并持相应证件到用户所在地卫生监督登记,留存相关资料
⑵使用单位的自来水管网的进水量应不小于用户日最高用水量,且使用该设备后不产生负压;自来水进水压力应不低于0.15MPa;使用该设备对自来水管网串接处产生的压降差小于0,01至0.02 MPa;在用水量为小流量或者不用水时应做到自动停机保压。
⑶新设备安装环境卫生要求必须符合上述构筑物要求;
⑷在设计施工中应预留安装有关水处理设备(如:补氯设备、臭氧、紫外线饮用水处理设备等)的位置。
⑸ 新设备与市政供水管线连接处必须设有倒流防止器、防污隔断阀以及相应防止局部污染的措施,避免对居民供水系统和市政管网系统产生污染。
⑹ 新设备的稳流补偿和管道过滤装置应设有便捷的清洗管道及阀门,使用
单位每周至少检查一次。
⑺ 采用新设备供水的单位必须按照规定办理工程的设计审查、竣工验收手
续并申领生活饮用水卫生许可证(二次供水)后方可供水。
7、水质符合生活饮用水卫生标准(GB5749-2006)要求
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