附件20
卫生级管路酸洗钝化方案
两桃杀三士
Sanitary Pipe Chemical Pickled & Passivation Procedure
TABLE OF CONTENTS
1编制方案的依据Basis of scheme compilation
1.1管道清洗的必要性Necessity of piping cleaning
纯化水不锈钢管道在使用前，要进行脱脂、酸洗、钝化和消毒处理，管道才能达到生产使用的技术要求。
Before ud stainless steel piping for purified water should be degread, pickled, passivity and disinfected. Only in this way can piping meet technical needs of production and usage.
1.2《脱脂工程施工及验收规范》HG20202-2000。
Construction and Acceptance Criteria of Industrial Piping
1.3《工业设备化学清洗质量标准》HG/T2387-2007
Quality Criteria of Chemical Cleaning for Industrial Equipment
1.4VWS提供的图纸
梦见塌方Drawings supplied by VWS
1.5管线的材质为全部为316L，如有其它材质，清洗前必须说明。
Material of pipeline is all 316L. Give a description of the material before cleaning if other materials are ud.
2工作范围Working scope
主要为卫生级不锈钢SS316L管道
Mainly for sanitary SS316L pipe.
1建德江
水煮腰花
2
2.1从纯水制造机到纯水TANK接口前级的循环管道；
Pipes from Orion to water tank and pipes of water tank returning to the front tank.
一句话评价自己
2.2纯水循环管道；
PW loop distribution Pipes.
3清洗工艺Cleaning process
3
3.1采用我公司多年成熟的不锈钢管道清洗工艺。
Adopt cleaning process for stainless steel pipe which we are good at.
3.2管道的清洗工艺为：Piping cleaning process is as follows:
临时配管建立循环回路form circulation——水冲洗water flush——脱脂degrea——水冲洗rin by water——酸洗pickling,钝化passivation——水冲洗rin by water——系统恢复system ret
3.3设备、管线系统内不宜清洗的部件：
Components in the equipment and piping that are not suitable to be cleaned
清洗系统中的仪表类（一次仪表、二次仪表及仪表传感器）和UV杀菌灯、热交换器（板式及管壳式）对清洗液敏感的部件应临时拆除。
Other components, such as 1st loop instrument, 2nd loop instrument and other transmitter, UV, HX (including plate type and tube/shell) that are not in conformity with m
aterial and are nsitive to cleaning agent, such as flow meter, conductivity meter, level meter, wiring, tank, etc should be dismantled temporarily.
3.4管线系统内不参与清洗的短管等拆除的部件采用浸泡清洗，清洗完成后经检验合格后用塑料保鲜膜包扎，等管线系统清洗完成后再安装复位。
All components did not involved on the pipeline to be soaked and cleaned. After cleaned and tested, it must be packed with plastic film. Installed and positioned after pipe clean finished.
3.5清洗流程Cleaning process
1.
2.
3.
3.1.
3.2.
涵洞标志图片3.3.
3.4.
3.5.
3.5.1.所有需要清洗的管道用临时管道连接形成清洗循环系统，采用循环清洗，清洗时建立一个循环回路.
All piping that need cleaning should be connected by temporary piping to form circulation system. Circulating cleaning is ud and one loop was formed when proceeding with cleaning.
3.5.2.清洗流程图
4清洗过程Cleaning process
所有清洗系统的过程是一样的。All cleaning system have the same process.
适合小学生的座右铭
4
4.1人工处理 Manual handling
4.
4.1.
4.1.1.管线在清洗前要做全面检查，设备材质和方案中所列要一致。
Pipelines should be inspected in the overall perspective before cleaning and make sure that equipment material is in conformity with that listed in the scheme.
4.1.2.不参与清洗的被隔离的仪表阀门等要在清洗前检查确认Isolated instruments and valves that are not cleaned should be checked before cleaning。
4.1.3.测试样品必须包含两个新焊的，未清洗的焊缝。一个安装在将要清洗的管路中，另外一个放在化学清洗罐内;.
4.2水冲洗：水冲洗及试压的目的在除去管线内表面积灰、泥沙、脱落的金属氧化物及其它疏松污垢，并在模拟清洗状态下对临时清洗回路进行泄漏检查。
古风动漫头像Rin with water. Rin and pressure test aim to remove ashes, mud and shed metallic oxide and other loo dirt on the surface of pipelines and proceed with leak test on temporary cleaning loop under the circumstances of cleaning stimulation.
用纯化水（氯离子小于0.1ppM）进行冲洗，冲洗时控制进出水平衡。冲洗的同时检查清洗循环系统是否有泄漏等情况发生，如果有，在清洗剂添加前要处理好。
Rin with purified water (chlorine ion is less than 0.1ppM). In rin process control the balance between incoming and outgoing water and check if circulating system leaks. If so, do it well before adding cleaning agent.
4.3脱脂：脱脂处理的目的系统内表面在制作、安装、过程中产生的油脂，使酸洗液能完全，彻底地和系统内表面接触，从而使清洗彻底，钝化膜完整；
Degrea. It aims to degrea the oil produced in the fabrication, installation of inner surf
ace of system to make pickling agent get in full contact with inner surface system. Therefore cleaning can be finished fully and passivation membrane is in complete situation.
4.2.
4.3.
4.3.1.操作步骤，系统加入纯化水（氯离子小于0.1ppM）至预定液位，开始循环，并加入碱洗药剂。
Procedure. Inject purified water (chlorine ion is less than 0.1ppM) into the system and begin the circulation. And add alkaline cleaning medicament for stainless steel and degreasing finishes.
4.3.2.工艺条件：Process
