变压器油中腐蚀性硫抑制剂添剂研究及添加工艺设计1(1)

CHANGSHAUNIVERSITYOFSCIENCE&TECHNOLOGY毕业设计（论文）题目：变压器油中腐蚀性硫抑制剂添剂研究及添加工艺设计学生姓名：李俊学号：200967090214班级:应化0902班专业：应用化学指导教师：杨道武2013年6月变压器油中腐蚀性硫抑制剂添剂研究及添加工艺设计学生姓名：李俊学号：200967090214班级：应化0902班所在院(系):化学与生物工程学院指导教师：杨道武完成日期:2013年6月变压器油中腐蚀性硫抑制剂添剂研究及添加工艺设计变压器油中腐蚀性硫抑制剂添剂研究及添加工艺设计摘要变压器油中腐蚀性硫是导致变压器故障的主要原因。研究目的是提出一种测试腐蚀性硫的方法，选用一种抑制剂来减小硫的腐蚀，并设计出添加工艺。为以后变压器腐蚀性硫的研究提供支持。本论文对变压器油中腐蚀性硫进行研究，以不同含硫量下的变压器油为对象。通过研究界面张力、微水、介损、电导率和酸值对变压器油中腐蚀性硫的影响，同时还对其加入钝化剂BTA进行研究，用ASTMD1275-B方法检测铜片腐蚀情况。结果表明：随着含硫量的增加酸值会变大，电导率会增大，铜片的腐蚀会更严重。在含硫量在500mg/kg的油样下，加入钝化剂（BAT）的最佳添加量为40mg/kg。本论文设计出钝化剂的添加工艺，并且设计出添加工艺流程图，达到的效果简洁方便。关键词：变压器油；添加剂；添加工艺；设计变压器油中腐蚀性硫抑制剂添剂研究及添加工艺设计CORROSIVESULFURINTRANSFORMEROILINHIBITORTIMDOSEOFSTUDYANDADDPROCESSDESIGNABSTRACTCorrosivesulfurintransformeroilisthemaincausetransformerfailure.Objectiveistoprovideamethodofcorrosivesulfurtest,useaninhibitortoreducecorrosionofsulfur,andtheaddeddesignprocess.Corrosivesulfurtransformerforthefutureresearchtoprovidesupport.Thiscorrosivesulfurintransformeroilstudiedunderdifferentsulfurcontentoftransformeroilasobjects.Bystudyingtheinterfacialtension,microwater,dielectricloss,conductivityandacidcorrosivesulfurintransformeroilimpact,whilealsoaddingtoitspassivatingagentBTAconductedthestudywithASTMD1275-Bwasusedtodetectcoppercorrosion.Theresultsshowthat:withtheincreaseofsulfuracidvaluebecomeslarge,theconductivitywillincrease,thecorrosionofcopperwillbemoreserious.500mg/kgofthesulfurcontentintheoilsample,addpassivatingagent(BAT)forthebestdosageof40mg/kg.Inthisthesis,apassivatingagentaddedprocesses,anddesignaprocessflowdiagramaddedtoachievetheeffectofsimpleandconvenient.Keywords:Transformeroil；Additive；Addcraft；Design变压器油中腐蚀性硫抑制剂添剂研究及添加工艺设计目录1绪论......................................................................................................................................11.1研究目的及意义...........................................................................................................11.1.1研究目的..............................................................................................................11.1.2研究意义..............................................................................................................11.2变压器油中腐蚀性硫的基本情况概述.......................................................................11.2.1变压器油的主要性能..........................................................................................11.2.2变压器油中腐蚀性硫的危害..............................................................................21.2.3变压器油中腐蚀性硫国内外研究利用现状......................................................31.3变压器油钝化剂的国内现状.......................................................................................41.4本论文研究与设计内容...............................................................................................42抑制剂添加研究..................................................................................................................62.1实验药品及仪器...........................................................................................................62.1.1实验药品............................................................................................................62.1.2实验仪器..............................................................................................................72.2不同油样参数测定.....................................................................................................72.2.1样品配制............................................................................................................72.2.2酸值....................................................................................................................72.2.3介损与电阻率....................................................................................................92.2.4界面张力..........................................................................................................122.2.5微水..................................................................................................................132.3样品铜片腐蚀试验...................................................................................................152.3.1铜片腐蚀的机理..............................................................................................152.3.2ASTMD1275-B腐蚀性硫检测方法...............................................................152.3.3铜片腐蚀情况................................................................................................152.4油样加入钝化剂实验...............................................................................................162.4.1钝化剂的钝化机理............................................................................................16变压器油中腐蚀性硫抑制剂添剂研究及添加工艺设计2.4.2钝化剂的相关性质............................................................................................162.4.3加入钝化剂铜片腐蚀情况..............................................................................172.5小结.............................................................................................................................173添加工艺设计........................................................................