112BRAND&STANDARDIZATION品牌与标准化2023年第4期超大口径偏心半球阀密封系统解决方案蔡毅*，吴孔燕？，丁巍3，刘智，周星彪！（1.特技阀门集团有限公司，浙江温州325103；2.江门市鑫辉特种密封科技有限公司，广东江门529080；3.开封市瑞发高中压阀门有限公司，河南开封271000）【摘要】供水管网是现代社会必需的基础设备，超大口径阀门是我国南水北调工程、城市供水管网的关键设备。此前国内超大口径阀门设计生产经验不足，阀门工作中出现了泥沙进人弹簧腔导致阀座失效、洪水倒灌导致阀门反向泄漏、阀门关键部件阀芯不耐用等一系列问题。我司研发的固液相分离技术、液压传动强制密封技术、多重密封技术、抗气蚀、耐冲刷等核心技术能有效解决问题，满足客户需求。偏心球阀具有密封可靠、检修安全、使用寿命长、智能控制等特点，其价格仅为同类进口产品的一半左右，能替代同类进口产品，打破了此类产品长期被国外断的局面。【关键词】超大口径阀门；偏心半球阀；固液相分离；安全检修；抗气蚀和冲刷【DOI编码】10.3969/j.issn.1674-4977.2023.04.035SolutionforSealingSystemofOversizedEccentricHemisphericalValveCAIYil,WUKongyan',DINGWeit,LIUZhil,ZHOUXingbiao'(1.SpecialTechnologyValveGroupCo.,Ltd.,Wenzhou325103,China;2.JiangmenXinhuiSpecialSealingTechnologyCo.,Ltd.,Jiangmen529080,China;3.KaifengRuifaHighandMediumPressureValveCo.,Ltd.,Kaifeng271000,China)Abstract:Thewatersupplypipenetworkisthenecessarybasicequipmentinmodernsociety,andthesuperlargediametervalveisthekeyequipmentoftheSouth-NorthWaterTransferProjectandurbanwatersupplypipenetwork.Previously,therewasinsufficientexperienceinthedesignandproductionoflargediametervalvesinChina.Duringvalveoperation,therewereaseriesofproblemssuchassedimententeringthespringchamberleadingtovalveseatfailure,floodbackflowleadingtovalvereverseleakage,andthevalvecore,akeycomponentofthevalve,beingnotdurable.Ourcompany'scoretechnologiessuchassolid-liquidphaseseparationtechnology,hydraulictransmissionforcedsealingtechnology,multiplesealingtechnology,anticavitation,anderosionresistancecaneffectivelysolveproblemsandmeetcustomerneeds.Eccentricballvalveshavethecharacteristicsofreliablesealing,safemaintenance,longservicel...
