反渗透膜清洗方法.pdf
反渗透膜清洗方法反渗透设备自 1月份投用以来运行到现在，产水量和除盐率均有明显的下降、运行压差达到 0.5MPa，无论是从满足生产需要还是从保护设备的角度考虑，对反渗透膜进行化学清洗是非常必要的。具体清洗方案如下：一、清洗前的准备工作1、根据膜污染物确定清洗剂膜污染种类与清洗剂的选择表（由厂家提供）污染物配方无机盐垢CaCO3硫酸盐垢CaSO4，BaSO4金属氧化物无机胶体硅微生物有机物a.0.1%(w)NaOH(PH12,30)；b.0.1%(w)Na4EDTA(PH12,30)最好可以可以一般a.0.1%(w)NaOH(PH12,30)b.0.025%(w)Na-DDS(PH12,30)可以最好最好最好较好0.2%(w)HCL 最好0.5%(w)H3PO4可以可以2.0%(w)柠檬酸可以1.0%(w)NH2SO3H 可以1.0%(w)Na2S2O4可以最好说明：a.W：重量百分比 b.NaOH 表示氢氧化钠；Na4EDTA 表示乙二胺四乙酸四钠；Na-DDS 表示十二烷基磺酸钠盐，又名月硅酸钠；Na2S2O4表示亚硫酸氢钠；H3PO4表示磷酸；NH2SO3H表示亚硫酸氢胺。2、联系化验车间对以往保存的污染指数（SDI）测试膜进行化验，确定污染物类别，并参考上表确定采用哪种药剂进行清洗。（注：我厂目前可选择的清洗药剂为柠檬酸、Na4EDTA、聚磷酸三钠、固体NaOH）3、清洗药剂量的计算化学清洗药剂量 =药剂溶液百分比浓度添加的清水量（通常为化学药箱容积）配制 2.0%的柠檬酸溶液，需要柠檬酸的量=2.0%20001=40（kg）配制 0.1%(w)NaOH，需要 NaOH 的量=0.1%20001=2kg 注明：1、清水：要求为 RO产品水或无其它离子污染的纯净水。2、药剂溶液百分比浓度：是按厂商规定的药剂溶液百分比浓度计算。3、化学清洗药剂投加量：为原液纯度；若不是，则此值需要除以已知纯度。4、化学清洗药剂配制流程清洗水箱（2000L）精密过滤器清洗水泵清洗回流液清洗液去反渗透膜球阀2球阀1球阀3球阀4P配制清洗药剂流程排空（1）柠檬酸溶液的配制：取软化水或反渗透纯水对清洗水箱进行清洗，直至干净为止；往清洗水箱内加满RO 产品水，并接蒸汽对水箱进行加温至35左右，将柠檬酸（40kg）加入进行溶解；启动清洗水泵将药液进行循环，使柠檬酸迅速和充分溶解，使柠檬酸溶液浓度达到2%(质量百分比)。（2）药液循环操作见上图：启泵前关闭球阀3 和球阀 4，打开球阀 1 后，启动清洗水泵，然后缓慢打开球阀 2，将药液进行循环直至全部溶解。（3）NaOH溶液的配制方法同上（1）、（2），但要注意温度控制在不高于30。二、清洗操作方法及流程1、清洗第一步：（1）反渗透设备清洗时一级膜与二级膜串联清洗，以清洗泵为增压装置。清洗开始时清洗液要排放一段时间（不回清洗水箱），排放量控制在清洗液的25-30%左右。文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2（2）流程及阀门开闭状态见下图1：除了图中标注“打开”的阀门外，其它阀门均关闭；图中箭头为清洗液清洗及排放流程。清洗水箱（2000L）精密过滤器清洗水泵清洗回流液清洗液去反渗透膜球阀2球阀1（打开）球阀3（打开）球阀4（打开）P排空来自清洗水箱的清洗液一级反渗透膜二级反渗透膜一、二级清洗隔断阀二级清洗进液阀（打开）一级清洗进液阀 （打开）保安过滤器RO 高压泵M一级清洗回流阀 （打开）止回阀电动阀手阀二级清洗回流阀（打开）M冲洗电动阀纯水清洗回流阀 （打开）纯水浓水不合格纯水调节阀（打开）浓水调节阀纯水调节阀去地沟一级反渗透出水二级反渗透出水去地沟一级膜清洗回流液二级膜清洗回流液纯水清洗回流液来自中间水箱去地沟关闭图 1 文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C22、清洗第二步：（1）关闭排放阀，全部闭路循环1-2 小时，清洗液回到清洗水箱。（2）流程及阀门开闭状态见下图2：除了图中标注“打开”的阀门外，其它阀门均关闭；图中箭头为清洗液循环流程。清洗水箱（2000L）精密过滤器清洗水泵清洗回流液清洗液去反渗透膜球阀2球阀1（打开）球阀3（打开）球阀4（打开）P排空来自清洗水箱的清洗液一级反渗透膜二级反渗透膜一、二级清洗隔断阀二级清洗进液阀（打开）一级清洗进液阀 （打开）保安过滤器RO 高压泵M一级清洗回流阀 （打开）止回阀 电动阀手阀二级清洗回流阀（打开）M冲洗电动阀纯水清洗回流阀 （打开）纯水浓水不合格纯水调节阀浓水调节阀纯水调节阀去地沟一级反渗透出水二级反渗透出水去地沟一级膜清洗回流液二级膜清洗回流液纯水清洗回流液来自中间水箱去地沟图 2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C23、清洗第三步：清洗结束后水箱中的残液排尽并充分清洗水箱再配制第二种药液，同时设备内清洗残液应用水低压冲洗干净，PH值7。（可在清洗水箱内加入纯净水进行清洗）4、重复上述相同操作进行第二种药液的清洗流程。5、反渗透装置恢复使用时，必须重新对设备进行调节。开始的产水、浓水必须排放地沟一段时间。三、清洗注意事项1、清洗时操作要有安全防护措施，如带防护镜、手套、鞋和衣等，用到NaOH 调节 pH时，要注意通风；2、固体清洗剂必须充分溶解后再加其它试剂，进行充分混合后才能泵入RO装置；3、清洗过程中应密切注意清洗液温度上升情况，不得超过35，并观察液位和清洗液颜色的变化，必要时补充清洗液：4、清洗结束后，取残液进行化学分析，确定污染物的种类，为日后清洗提供依据。四、清洗效果的判断和对策1、清洗有效的标志：（1）产水量恢复至接近初投或上一次清洗后的水平;（2）脱盐率有明显提高;（3）进、出口压差恢复至接近初投或上次清洗后的水平，表明清洗有效。2、清洗效果不明显的可能原因和对策:原因对策预处理不当,膜污染过度加强预处理清洗剂选择不当改变清洗剂配方,重新清洗膜使用过长,清洗已无效重新更换膜组件文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2文档编码:CS1W1D4F4Z2 HS3C10Z4P8E1 ZS7I10J4F9C2
