板坯连铸机液压润滑系统管线的酸洗钝化施工方案

1、关于不锈钢二期板坯连铸机液压、 润滑系统 管线的酸洗钝化施工方案Pickling and Passivation Solution For The Hydraulic and Lubrication System of Con-caster一、清洗目的 I. Purpose of Cleaning 管线在生产、运输会使管线内产生微量油污、金属粒子，特别是 氧气管线内金属粒子可能与高纯氧高压氧化、 撞击，产生电火花而发 生不堪设想的严重后果， 历史上这样惨重的事故很多， 因此清洗钝化 是必不可少的。Durin g the production and transportation of pipe

2、s,oil residue,metal particals,especially the metal particals would react with high purity oxygen under high pressure, producing electric sparkling and leading to catastrophic result.Infact, it happened times again in the past.Therfore, it is highly necessary to cleaning and passivating the piping li

3、nes. 项目名称：不锈钢专项炼钢分项板坯连铸机液压、 润滑系统管线酸洗、 钝化II. Project name:Pickling and Passivation Solution For The Hydraulic and Lubrication System of Con-caster1、氧化管线： Oxydized pipelinesSpec.Len gthSpec.Len gth© 48X 3.578m© 34 X 327m© 60 X 3.545m© 48 X 720m© 76 X 464 m© 60 X 845m©

4、; 114X 416m© 38 X 5500m© 10X 1.564 m© 42 X 2.570m© 12X 236m© 89 X 3.2100m© 16X 3500m© 20 X 3422.5m© 25 X 31104m© 30 X 4328m2、施工人员：6人，在双方达到协议开工后，我方将派出由项目负责人带队的有实践经验的专业清洗工4人和一个安全员组成的队伍到现场实施清洗工作，可视工期及施工进度适当增加或 减少人员。3、Operators:6 operators. Before the agreed

5、date of start-up of cleaning, we will dispatch 4 experieneed cleaning workers and a safety inspector led by project manager to JISCOsite for pipeline cleaning .Personnel arrangement is flexible according to the actual dema nd of project proceed ing.4、施工机具：清洗泵、4只耐酸清洗槽、吊车、加热器、水管、玻璃钢等。5、Operating tools

6、: cleaning pumps, 4 anti-acid cleaning tank, crane,heaters, water pipe.6、安全措施：涉酸碱作业，所有工作人员配备安全帽、护目镜、 防毒面具、耐酸碱手套、雨靴、穿戴齐全方可作业，现场配有 5%的苏打水。7、Safety measurement: For all works involving acid or alkaline, the operators need to be equipped with safety helmet,eye-protection glasses,mask,anti-acid/alkalineg

7、loves,rain bootsetc. Any operator who is not safely equipped is forbidden to get into the site. 5% soda water is available on site.8、废液收集处理：清洗完毕后，清洗废液在槽内中和后经业主确 认后排放。9、Collection of waste liquid: After cleaning procedure, the waste will be neutrolized in the tank and discharged after safety confirma

8、tion of JISCO.二、具体施工方案三、Specific operation procedure1、酸洗钝化工艺：采用脱脂、酸洗钝化三步分开进行法2、Pickling and passivation procedure: degreasingpickling passivation.脱脂-高压水 -酸洗-漂洗-钝化-高压水冲洗 -吹干-封存第 3 页 共 7 页To be specific: degreasing high pressure water flushingpickling-i nsingpassivation high pressure water flush ing b

9、lowi ng to dry-covered up.脱脂剂配方：氢氧化钠 10%、碳酸钠 50%、表面活性剂 5% Recipe of degreasing agent:NaOH:10%; NaCH50%; surface activation agent 5%.酸洗剂配方：盐酸 20%、硝酸 50%、缓蚀剂 1%Recipe of pickling agent: HCL20%, Nitric acid 50%, anti-corrosion agent 1%钝化剂配方：磷酸 50%、氧化锌 35%、亚硝酸钠 2%Passivation agent recipe: Phosphoric aci

10、d 50%, Oxydized zinc 35%, 亚硝酸钠 2%3、施工质量目标：有效去除管道内表面、油渍、锈渍、铁屑等杂 物，形成钝化膜。4、Target: Remove the impurities,oil residues, rust etc. on the inner surface of the pipeline.5、温度控制：脱脂 -常温、酸洗 -常温、钝化 - 加温 50°6、Temperaturecontrol:degreasing-ambienttemp.;pickling-ambient temp.;passivation-heat up to 50°

11、7、施工质量检验：目视法，管线内壁无明显锈渍、杂物、油渍， 形成完整的钝化膜。8、Quality inspection:by naked eyes,to see if there isobvious rust,impurity,oilresidue,and whether thecomplete passivation film has been formed.9、施工工期进度：从进现场共计 5 天10、Time consumption: 5 days all together1) 准备工作 1 天 1 day for preparation.2) 清洗 3 天 3days for clean

12、ing,3) 退场 1 天 1 day for retreat11、工 程 清 场 及 验 收 退 场 Project clearance ,inspection and withdrawal;1) 清场：所有工具运出现场、废液中和排放 Clearance; all tool get out of site, waste liquid being neutralisedand discharged.2) 退场：检验合格，带管子缝墙运回现场，工程达标完成第 5 页 共 7 页关于不锈钢二期板坯连铸机液压、润滑系统 管线的焊接施工方案Welding solution for the piping

13、of hydraulic and lubricati on system of Con-caster我单位油管焊接采取两个方案，一个是插入式焊接如下图所示2 opti ons:one is in sert weld in g,see follow ing draw ing:由于此对接属于插入式，不会导致氧化皮进入管内，所以，只需要直 接焊接即可。By insert conn ecti on ,the scale will not get in to the pipe,the n, just weld them.另一种焊接方式属于对接式焊接，如下图所示Ano theris butt weldi ng , as show n in thefollowi ngdraw ing:焊接/x 1JXXX、xX、1氮氩弧焊-气./由于此对接方式，管内易产生氧化皮，故将管内充满氮气，将管内空气排净，且焊缝处，氩弧