精选优质文档-倾情为你奉上Procedure for Chemical Cleaning of condensate and feed water pipeline system 凝结水和锅炉给水管道系统化学清洗程序1.0 SCOPE范围This procedure covers the chemical cleaning of Pre-Boiler (Condensate and feed water pipe system) for Sumsel-5 2x150 MW Coal Fired Steam Power Plant Project 该程序是Sumsel-5 2x150MW燃煤发电厂项目的锅炉前（凝结水和给水管道系统）化学清洗。2.0 PURPOSE目的The purpose is to clear the impurities from inner surface of the pre-boiler water pipe line, such as metal debris, oxide, oil, dust, and metal oxide produced in inner surface during equipment manufacturing and installation, and to ensure the water and steam quality of pre-boiler water system.3.0 RESPONSIBILITIES 工作职责3.1 The T/G Area Manager shall make sure that is implemented at site汽轮发电机区域经理应确保在施工现场实施化学清洗。3.2 The Piping Superintendent or engineers are responsible for implementation of this instruction. He has to check that requirement in chemical cleaning is properly adhered to as indicated in this instruction.管道主管或工程师负责执行该措施。他们应在化学清洗期间检查,要求正确地履行这个措施。3.3 The chemical cleaning Supervisor is responsible for the arrangement of all processes involved in the execution of chemical cleaning work. He has to make sure that standard code practice is applied accordingly.化学清洗主管应负责所有进程的安排，参与化学清洗工作的执行。他必须确保标准惯例相应的执行。3.4 The QA/QC personnel in charge of chemical cleaning are responsible in assuring that the requirement in this procedure are properly implemented and followed.QA / QC人员负责化学清洗，负责确保本程序的要求正确地实施和跟踪。4.0CLEANING SCOPE清洗范围The condensate system and boiler feed water system. (Mecanical Cleaning after and before Dearator and Condensate )凝结水系统和锅炉给水系统（在除氧器和凝结水前后机械清洗）。5.0 Necessary Precondition Check 所需要的预先检查The following systems must be normal and can be put be operation separately and have corresponding operation measures. 下列系统必须正常,可以单独操作并且有相应的操作措施。(1) Hydraulic pressure test for the system must be finish.系统水压试验必须完成。(2) Insulation in the system should be .pleted.系统保温应当完成。(3) Finish the trial operation of Condensate Transfer Pumps and Condensate Drain pumps and feed water pumps.凝结水输送泵，凝结水排放泵和给水泵运行完成。(4)Finish the trial operation of pneumatic & motorized of Shut off valve.气动和电动截止阀试运行完成。(5) Condensate, Feed water, and temporary system have been mate heat insulation.凝结水，给水和临时系统已经配备热力保温。(6)Before alkali cleaning, all the related systems should be checked and confirmed by the related groups. All kinds of desuperheating water should be .pletely close off.在碱洗之前，所有相关的系统应检查，并且由相关人员确认。所有减温水系统应当完全关闭。(7) The access is unblocked and the lighting is enough at field. There is reliable .munication equipment. 现场通道畅通和照明足够。有可靠的通信设备。(8) Prepare qualified chemicals for alkali cleaning. 合格的化学药品应准备用于碱冲洗。(9)During chemical cleaning period, there should be continuously industrial water supply, demineralized water supply, steam supply, waste fluid discharge and disposal condition. Keep full of industrial water and demineralized water in advance, boiler make-up water processing system should have continuous operating condition. 化学清洗期间,应该有连续的工业供水、除盐水供应、供汽、废液排放和废物处理条件。预先保持充足的工业水和除盐水,锅炉补给水处理系统应在连续操作状况。 (10) The .mander, operator, troubleshooters, and chemicals analyzers are qualified.指挥员,操作员,维修员,化学分析仪员应均为有资格的人员。(11) Discharge system is unblocked, wash water tank and neutralization tank are qualified.排放系统应畅通,清洗水箱和中和箱应是合格的。6.0 Temporary Major Equipment and Tools临时主要设备和工具6.1 Condensate System凝结水系统Temporary Line is from Chemical Dozing Pump to Condenser Hot Well.临时管道是从化学加药泵到凝汽器热井管道.6.2 Water Requirement for Alkali Cleaning碱洗水需求量No.Equipment设备Volume (m3)体积1Deaerator除氧器140m32Condenser Tank凝汽器水箱220m33Piping Condenser凝汽器管道22m34Piping Feed Water给水管道17m35HP Heater 1高加22m36HP Heater 2高加21m37HP Heater 3高加m38LP Heater 4低加6m39LP Heater 5低加6m310LP Heater 6低加6m3TOTAL总计460 m36.3 Chemical Requirement for Alkali Cleaning碱洗化学品需求量 No.Chemical化学品Concentration浓度Quantity数量1TSP1 % 4.600 kg2DSP0.6% 2.760 kg3Detergent清洗剂0.05% 230 kg4Anti Foaming ( if Needed )防泡沫剂（如果需要的话） 7.0 ALKALI CLEANING PROCEDURE碱清洗程序 (1) Initial Water Filling to the Piping System, Start Circulating Water Pump and Check water leakage, and make sure there is no leakage at all connection. The mixing tank (Chemical Dozing point) will use Condenser Hot well.初始加水到管道系统,启动循环水泵,检查渗漏情况,确保整个连接系统无泄漏。混合箱(化学加药点)将使用凝汽器热井。(2) If the temperature water could not reach 60-800C, then Inject steam from auxiliary steam system to Deaerator to keep the water solution temperature up to 60-800C。如果水温度不能达到60-80度,然后从辅助蒸汽系统注入蒸汽到除气器，保持水的溶解温度高达6080度。(3) Fill Alkali/Degreaser to condenser Hot well and keep the pH 10-12.加入碱/脱脂剂到凝汽器热井和pH值10-12。