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1、關于不銹鋼二期板坯連鑄機液壓、潤滑系統管線的酸洗鈍化施工方案Pickling and Passivation Solution For The Hydraulic and Lubrication System of Con-caster一、 清洗目的I. Purpose of Cleaning管線在生產、運輸會使管線內產生微量油污、金屬粒子，特別是氧氣管線內金屬粒子可能與高純氧高壓氧化、撞擊，產生電火花而發生不堪設想的嚴重后果，歷史上這樣慘重的事故很多，因此清洗鈍化是必不可少的。Durin g the production and transportation of pipes,oil res2、idue,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 lines.項目名稱：3、不銹鋼專項煉鋼分項板坯連鑄機液壓、潤滑系統管線酸洗、鈍化II. Project name: Pickling and Passivation Solution For The Hydraulic and Lubrication System of Con-caster1、 氧化管線：Oxydized pipelinesSpec.LengthSpec.Length483.578m34327m603.545m48720m76464m60845m114416m385500m101.564m422.570m12236m893.2100m163500m203422.5m2531104m304328m2、4、 施工人員：6人，在雙方達到協議開工后，我方將派出由項目負責人帶隊的有實踐經驗的專業清洗工4人和一個安全員組成的隊伍到現場實施清洗工作，可視工期及施工進度適當增加或減少人員。3、 Operators:6 operators. Before the agreed date of start-up of cleaning, we will dispatch 4 experienced cleaning workers and a safety inspector led by project manager to JISCOsite for pipeline cleaning .Personnel5、 arrangement is flexible according to the actual demand of project proceeding.4、 施工機具：清洗泵、4只耐酸清洗槽、吊車、加熱器、水管、玻璃鋼等。5、 Operating tools: cleaning pumps, 4 anti-acid cleaning tank, crane,heaters, water pipe.6、 安全措施：涉酸堿作業，所有工作人員配備安全帽、護目鏡、防毒面具、耐酸堿手套、雨靴、穿戴齊全方可作業，現場配有5%的蘇打水。7、 Safety measurement: For all wor6、ks involving acid or alkaline, the operators need to be equipped with safety helmet,eye-protection glasses,mask,anti-acid/alkaline gloves,rain bootsetc. Any operator who is not safely equipped is forbidden to get into the site. 5% soda water is available on site.8、 廢液收集處理：清洗完畢后，清洗廢液在槽內中和后經業主確認后排放。9、7、 Collection of waste liquid: After cleaning procedure, the waste will be neutrolized in the tank and discharged after safety confirmation of JISCO.二、 具體施工方案三、 Specific operation procedure1、 酸洗鈍化工藝：采用脫脂、酸洗鈍化三步分開進行法2、 Pickling and passivation procedure: degreasingpicklingpassivation.脫脂-高壓水-酸洗-漂洗-鈍化-高壓8、水沖洗-吹干-封存To be specific: degreasinghigh pressure water flushingpickling rinsingpassivationhigh pressure water flushingblowing to dry-covered up.脫脂劑配方：氫氧化鈉10%、碳酸鈉50%、表面活性劑5%Recipe of degreasing agent:NaOH:10%; NaCH50%; surface activation agent 5%.酸洗劑配方：鹽酸20%、硝酸50%、緩蝕劑1%Recipe of pickling agent: HCL209、%, Nitric acid 50%, anti-corrosion agent 1%鈍化劑配方：磷酸50%、氧化鋅35%、亞硝酸鈉2%Passivation agent recipe: Phosphoric acid 50%, Oxydized zinc 35%,亞硝酸鈉2%3、 施工質量目標：有效去除管道內表面、油漬、銹漬、鐵屑等雜物，形成鈍化膜。4、 Target: Remove the impurities,oil residues, rust etc. on the inner surface of the pipeline.5、 溫度控制：脫脂-常溫、酸洗-常溫、鈍化-加溫506、10、 Temperature control:degreasing-ambient temp.;pickling-ambient temp.;passivation-heat up to 507、 施工質量檢驗：目視法，管線內壁無明顯銹漬、雜物、油漬，形成完整的鈍化膜。8、 Quality inspection:by naked eyes,to see if there is obvious rust,impurity,oil residue,and whether the complete passivation film has been formed.9、 施工工期進度：從進現場共計5天1011、 Time consumption: 5 days all together 1） 準備工作1天1 day for preparation.2） 清洗3天3days for cleaning,3） 退場1天1 day for retreat 11、 工程清場及驗收退場Project clearance ,inspection and withdrawal;1） 清場：所有工具運出現場、廢液中和排放Clearance; all tool get out of site, waste liquid being neutralisedand discharged.2） 退場：檢驗合格，帶管子縫墻運12、回現場，工程達標完成關于不銹鋼二期板坯連鑄機液壓、潤滑系統管線的焊接施工方案Welding solution for the piping of hydraulic and lubrication system of Con-caster我單位油管焊接采取兩個方案，一個是插入式焊接如下圖所示2 options:one is insert welding,see following drawing:由于此對接屬于插入式，不會導致氧化皮進入管內，所以，只需要直接焊接即可。By insert connection,the scale will not get into the pipe,then, 13、just weld them.另一種焊接方式屬于對接式焊接，如下圖所示Another is butt welding , as shown in the following drawing:由于此對接方式，管內易產生氧化皮，故將管內充滿氮氣，將管內空氣排凈，且焊縫處，氬弧焊打底，再進行正常焊接。AS for this solution, scale will be produced.So, nitrogen is to be filled in the pipe to discharge oxygen completely.At the seam, argon-arc welding will be implemented before normal welding.