2023NO.2工业与技术SCIENCE&TECHNOLOGYINFORMATION科技资讯科技资讯SCIENCE&TECHNOLOGYINFORMATION浮船坞主压载泵改装恢复调载功能实例王家华(启东中远海运海洋工程有限公司江苏南通226251)摘要：“调载功能”是浮船坞上主压载泵的最重要功能，通过其向压载水舱泵入或排出压载水，以此调节浮船坞在水上的浮态，便于承载待修船舶，实现生产。该文针对某大型浮船坞一压载泵运行中经常损坏的问题，阐述改装潜水轴流泵型式过程及工艺控制要点，恢复了该台主压载泵调载功能的技术实现途径。该文介绍的改装案例，是在浮船坞正常生产期间的坞期内实施，采用了部分新工艺、新材料，实现了不停产改装、一次试车成功。改装后的泵单元现已安全运行2年，可为今后同类场所下相同型式泵的修理和改造提供借鉴。关键词：浮船坞压载泵潜水轴流泵直立式离心泵中图分类号：U673文献标识码：A文章编号：1672-3791(2023)02-0022-04ACaseStudyofDischargingFunctionalRehabilitationofOneMainBallastPumpRefittedinFloatingDockWANGJiahua(ChinaCOSCOShipping(Qidong)OffshoreEngineeringCo.,Ltd.,Nantong,JiangsuProvince,226251China)Abstract:"Dischargingfunction"isthemostimportantfunctionforthemainballastpumpequippedonaliftingfloatingdock,andtherepairofashipcanberealizedbyadjustingthefloatingstateoftheliftingfloatingdockthroughin-chargingordischargingwaterfromtheballasttank.Inthisresearch,fortheproblemoffrequentlydam‐agedduringoperationofaballastpumponalargefloatingdock,submersibleaxialflowpumpswereselectedasperthetypesandthecharacteristicsontheprocessandprocesscontrol,andthebuoyancyregulatingfunctionofthemainballastpumpwasthenrecovered.Theconversionscheme,whichcanberealizedbyconductingonlyonetrialonthefloatingdockwithoutinterferingthenormalworkingcondition,includessomenewtechniquesandnewmaterials.Themodifiedpumpunithasbeenoperatingsafelyfortwoyears,whichcanprovidereferenceforthere‐pairandtransformationofthesametypeofpumpinthesameplaceinthefuture.KeyWords:Floatingdock;Ballastpump;Submersibleaxialflowpump;Verticalcentrifugalpump主压载泵的运行可靠性决定着浮船坞能否正常生产，陈文祥在其硕士论文《112m浮船坞结构强度研究》[1]中，讲述了“浮船坞的沉浮是通过水密舱室的填充和调...
