純化水管線 酸洗鈍化方案

1、純化水管線 酸洗鈍化方案純化水管線 酸洗鈍化方案純化水管線 酸洗鈍化方案V:1.0精細(xì)整理，僅供參考 純化水管線 酸洗鈍化方案日期：20 xx年X月附件20衛(wèi)生級(jí)管路酸洗鈍化方案Sanitary Pipe Chemical Pickled & Passivation Procedure起草/審核簽名日期起草人審核/批準(zhǔn) TOC o 1-3 h z u HYPERLINK l _Toc2 1編制方案的依據(jù)Basis of scheme compilation PAGEREF _Toc2 h 3 HYPERLINK l _Toc3 2工作范圍Working scope PAGEREF _Toc3

2、h 3 HYPERLINK l _Toc4 3清洗工藝Cleaning process PAGEREF _Toc4 h 3 HYPERLINK l _Toc5 4清洗過(guò)程Cleaning process PAGEREF _Toc5 h 5 HYPERLINK l _Toc6 5廢液處理Waste liquor treatment PAGEREF _Toc6 h 9 HYPERLINK l _Toc7 6甲方提供的條件Condition supplied by the owner PAGEREF _Toc7 h 9 HYPERLINK l _Toc8 7臨時(shí)配管Temporary tubing

3、PAGEREF _Toc8 h 10 HYPERLINK l _Toc9 8檢驗(yàn)與驗(yàn)收Test and accept PAGEREF _Toc9 h 10 HYPERLINK l _Toc0 9安全 PAGEREF _Toc0 h 11編制方案的依據(jù)Basis of scheme compilation管道清洗的必要性Necessity of piping cleaning純化水不銹鋼管道在使用前，要進(jìn)行脫脂、酸洗、鈍化和消毒處理，管道才能達(dá)到生產(chǎn)使用的技術(shù)要求。Before used stainless steel piping for purified water should be de

4、greased, pickled, passivity and disinfected. Only in this way can piping meet technical needs of production and usage.脫脂工程施工及驗(yàn)收規(guī)范HG20202-2000。Construction and Acceptance Criteria of Industrial Piping工業(yè)設(shè)備化學(xué)清洗質(zhì)量標(biāo)準(zhǔn)HG/T2387-2007Quality Criteria of Chemical Cleaning for Industrial EquipmentVWS提供的圖紙Drawin

5、gs supplied by VWS管線的材質(zhì)為全部為316L，如有其它材質(zhì)，清洗前必須說(shuō)明。Material of pipeline is all 316L. Give a description of the material before cleaning if other materials are used.工作范圍Working scope主要為衛(wèi)生級(jí)不銹鋼SS316L管道Mainly for sanitary SS316L pipe.從純水制造機(jī)到純水TANK接口前級(jí)的循環(huán)管道；Pipes from Orion to water tank and pipes of water t

6、ank returning to the front tank.純水循環(huán)管道；PW loop distribution Pipes.清洗工藝Cleaning process采用我公司多年成熟的不銹鋼管道清洗工藝。Adopt cleaning process for stainless steel pipe which we are good at.管道的清洗工藝為：Piping cleaning process is as follows:臨時(shí)配管建立循環(huán)回路form circulation水沖洗water flush脫脂degrease水沖洗rinse by water酸洗pickling,

7、鈍化passivation水沖洗rinse by water系統(tǒng)恢復(fù)system reset設(shè)備、管線系統(tǒng)內(nèi)不宜清洗的部件：Components in the equipment and piping that are not suitable to be cleaned清洗系統(tǒng)中的儀表類（一次儀表、二次儀表及儀表傳感器）和UV殺菌燈、熱交換器（板式及管殼式）對(duì)清洗液敏感的部件應(yīng)臨時(shí)拆除。Other components, such as 1st loop instrument, 2nd loop instrument and other transmitter, UV, HX (includ

8、ing plate type and tube/shell) that are not in conformity with material and are sensitive to cleaning agent, such as flow meter, conductivity meter, level meter, wiring, tank, etc should be dismantled temporarily.管線系統(tǒng)內(nèi)不參與清洗的短管等拆除的部件采用浸泡清洗，清洗完成后經(jīng)檢驗(yàn)合格后用塑料保鮮膜包扎，等管線系統(tǒng)清洗完成后再安裝復(fù)位。All components did not in

9、volved 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.清洗流程Cleaning process所有需要清洗的管道用臨時(shí)管道連接形成清洗循環(huán)系統(tǒng)，采用循環(huán)清洗，清洗時(shí)建立一個(gè)循環(huán)回路.All piping that need cleaning should be connected by temporary piping to

10、form circulation system. Circulating cleaning is used and one loop was formed when proceeding with cleaning.清洗流程圖清洗過(guò)程Cleaning process 所有清洗系統(tǒng)的過(guò)程是一樣的。All cleaning system have the same process.人工處理Manual handling管線在清洗前要做全面檢查，設(shè)備材質(zhì)和方案中所列要一致。Pipelines should be inspected in the overall perspective before

11、cleaning and make sure that equipment material is in conformity with that listed in the scheme.不參與清洗的被隔離的儀表閥門(mén)等要在清洗前檢查確認(rèn)Isolated instruments and valves that are not cleaned should be checked before cleaning。測(cè)試樣品必須包含兩個(gè)新焊的，未清洗的焊縫。一個(gè)安裝在將要清洗的管路中，另外一個(gè)放在化學(xué)清洗罐內(nèi);.水沖洗：水沖洗及試壓的目的在除去管線內(nèi)表面積灰、泥沙、脫落的金屬氧化物及其它疏松污垢，并在

12、模擬清洗狀態(tài)下對(duì)臨時(shí)清洗回路進(jìn)行泄漏檢查。Rinse with water. Rinse and pressure test aim to remove ashes, mud and shed metallic oxide and other loose dirt on the surface of pipelines and proceed with leak test on temporary cleaning loop under the circumstances of cleaning stimulation.用純化水（氯離子小于）進(jìn)行沖洗，沖洗時(shí)控制進(jìn)出水平衡。沖洗的同時(shí)檢查清洗循

13、環(huán)系統(tǒng)是否有泄漏等情況發(fā)生，如果有，在清洗劑添加前要處理好。Rinse with purified water (chlorine ion is less than . In rinse process control the balance between incoming and outgoing water and check if circulating system leaks. If so, do it well before adding cleaning agent. 脫脂：脫脂處理的目的系統(tǒng)內(nèi)表面在制作、安裝、過(guò)程中產(chǎn)生的油脂，使酸洗液能完全，徹底地和系統(tǒng)內(nèi)表面接觸，從而使清

14、洗徹底，鈍化膜完整； Degrease. It aims to degrease the oil produced in the fabrication, installation of inner surface 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.操作步驟，系統(tǒng)加入純化水（氯離子小于）至預(yù)

15、定液位，開(kāi)始循環(huán)，并加入堿洗藥劑。Procedure. Inject purified water (chlorine ion is less than into the system and begin the circulation. And add alkaline cleaning medicament for stainless steel and degreasing finishes.工藝條件：Process 溫度 temperature 常溫normal temperature循環(huán)時(shí)間 circulating time 2小時(shí)hours循環(huán)時(shí)間可根據(jù)天氣、管道復(fù)雜情況適當(dāng)延長(zhǎng)或

16、縮短。Circulating time can be lengthened or shortened according to the weather and piping.脫脂藥劑：Degreasing medicament序號(hào)No名稱Name1氫氧化鈉直到其濃度為2%-3%測(cè)試項(xiàng)目：Items to be testedPH 1次/半小時(shí) once/half hour脫脂液PH要求維持在12以上，當(dāng)PH小于12時(shí)應(yīng)添加氫氧化鈉。PH of Degreasing agent to be kept as above 12 and sufficient degreasing agent to be

17、 added.PH測(cè)試使用PH試紙PH checked with PH test paper水力沖洗：水力沖洗的目的是除去脫脂后脫落的污物，并將系統(tǒng)表面殘留的脫脂液沖洗干凈。Water rinse to get rid of shed ordure and flush remaining degreasing agent on system surface clean.操作步驟，排盡系統(tǒng)內(nèi)脫脂液，用大量水沖洗。Operation procedure. Drain degreasing solution in the system and flush the system with enough

18、 water. 測(cè)試項(xiàng)目，用視覺(jué)觀察沖洗水至透明無(wú)微粒，測(cè)定PH小于9。Items to be tested. Check flush water to be transparent with no particulate visually and make sure PH value less than 9. PH 2次/半小時(shí)twice/ half hourPH測(cè)試使用PH試紙，當(dāng)PH小于等于9時(shí)水沖洗完成。PH checked with PH test paper and water flush finished when PH6，電導(dǎo)率差小于s/cm，即可結(jié)束。After finish

19、ing passivation, drain away solution for passivation and flush with purified water (chlorine icon is less than to remove remaining passivation solution. When PH is close to the neutralization (pH6), difference of conductivity less than 1s/cm passivation finishes.工藝條件Process condition 清洗溫度cleaning te

20、mperature 常溫 normal temperature測(cè)試項(xiàng)目：Items to be tested PH 2次/半小時(shí)twice/half hour電導(dǎo)率 conductivity 2次/半小時(shí)twice/half hourPH測(cè)試使用PH試紙PH test by PH test paper.使用電導(dǎo)率儀測(cè)定電導(dǎo)率Cond tested by cond. Meter.系統(tǒng)恢復(fù)，清洗完成后將系統(tǒng)恢復(fù)原樣。System reset. Get the system back after finishing cleaning.如果系統(tǒng)長(zhǎng)時(shí)間不投入使用，建議用氮?dú)夥獯妗f the syste

21、m is not put into use for a long time, nitrogen is suggested for sealing.廢液處理Waste liquor treatment各清洗過(guò)程中的沖洗水，未添加清洗劑，可以直接排放。Flush water without cleaning additive during cleaning can be discharged directly.酸洗液的廢液，鈍化液的廢液，用槽罐車把廢水運(yùn)輸?shù)綇U水處理廠處理排放。Waste liquor of pickling solution and greasing solution shoul

22、d be delivering with tank car to waste water treating plant for handling and discharging.甲方提供的條件Condition supplied by the owner甲方負(fù)責(zé)提供如下公用設(shè)施：The following utilities are provided by the owner.水：全程采用純化水，純化水要求氯離子小于，使用ORION純化水.Purified water is used through the system and purified water should include le

23、ss than chlorine icon. Orion will provide the purified water for chemical pickled and passivation. 電源(清洗時(shí)使用純化水泵)。Power supply. Purified water pump is used when cleaning.干燥無(wú)油的壓縮空氣或氮?dú)猓?MPa。 Dry compressed air or nitrogen with no oil of MPa.臨時(shí)配管Temporary tubing臨時(shí)配管是指將清洗系統(tǒng)中管道連接起來(lái)，形成清洗循環(huán)回路，清洗完成后需要拆除的管道和設(shè)

24、施。Temporary tubing is the piping and facility that need be dismantled after cleaning Connect piping in the cleaning system to form circulating loop. 臨時(shí)配管用軟塑料管。Temporary tubing adopts soft plastic tube.檢驗(yàn)與驗(yàn)收Test and accept鈍化表面目測(cè)，鈍化膜完整，顏色一致。Check the surface of passivation visually to make sure that passivation film is complete and has the same color.在回路的最后一個(gè)焊縫采用鐵氰化鉀溶液顯藍(lán)測(cè)定，變色時(shí)間大于30秒鐘。On last welding seam, Adopt potassium ferrocyanide for blue indication ameasuring an