非能动核电站安全壳涂层的设计与可靠性分析
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摘要
安全壳用涂层在非能动核电站中起着重要的作用,涂层的失效会影响相关安全系统、设备、构筑物的安全功能以及事故后流体系统的正常运行,进而影响安全停堆。基于非能动核电站的系统功能与特点,着重对安全壳用无机锌涂层的设计特征、性能评定、使用寿命及可靠性进行分析论证。论证表明:影响涂层使用寿命的主要原因为施工因素,而核电正常运行环境对涂层的老化影响较小;设计上对涂层提出了充分且合理的技术要求,符合这些要求的无机锌涂层满足60 a预期寿命和系统功能要求。
Coatings used for passive containment vessel are very important. The coatingfailure might adversely affect the safety function of the safety-related system, facility and con-struction, and the operation of post-accident fluid systems, which further leads to safe shut-down. In this paper, based on the function requirements of the coatings used for passive con-tainment vessel, the design feature, qualification, design life and reliability of IOZ coating areinvestigated. The results show that the design requirements are sufficient and appropriate to en-sure performing the functions of safety-related nuclear power systems and expected 60 yearsdesign life can be guaranteed. Moreover, the coating service life can be greatly affected by theundetected deficiencies that occurred at the time of coating application, while the normal plantoperation condition plays a very little effect.
Coatings used for passive containment vessel are very important. The coatingfailure might adversely affect the safety function of the safety-related system, facility and con-struction, and the operation of post-accident fluid systems, which further leads to safe shut-down. In this paper, based on the function requirements of the coatings used for passive con-tainment vessel, the design feature, qualification, design life and reliability of IOZ coating areinvestigated. The results show that the design requirements are sufficient and appropriate to en-sure performing the functions of safety-related nuclear power systems and expected 60 yearsdesign life can be guaranteed. Moreover, the coating service life can be greatly affected by theundetected deficiencies that occurred at the time of coating application, while the normal plantoperation condition plays a very little effect.
引文
[1]US Nuclear Regulatory Commission.R.G.1.54,Service level I,II,and III protective coatings applied to nuclear power plants[S].Washington D.C.:出版者不祥,2010.
[2]孙汉虹.第三代核电站技术AP1000[M].北京:中国电力出版社,2010.
[3]RAMI N.Influence of gamma irradiation on the chemical and physical properties of DGEDDS/PDA and DGEDDS/MDA epoxy resins[J].Mater.Environ.Sci.,2010,1(4):277-288.
[4]CHARLES E ROSSI.Information notice No.89-77:Debris in containment emergency sumps and incorrect screen configurations[Z].Washington,D.C.:Nuclear Regulatory Commission,1989.
[5]秦国治,田志明.醇溶性无机富锌涂料及其应用[J].现代涂料与涂装,2001,4(5):26-28.
[6]周郁文.聚硅酸乙酯的改性及其应用的研究[J].涂料工业,2001,31(12):14-17.
[7]MARTIN R.Plant engineering:aging degradation of coating service level I coatings-summary of EPRI coating aging project activities[Z].Palo Alto,CA:EPRI,2013.
[8]Technical Committee ISO/TC 35.ISO 12944 paints and varnishes-corrosion protection of steel structures by protective paint systems[S].London:British Standards Institution,1998.
[9]Westinghouse Group.Pressurized water reactor sump performance evaluation methodology[Z].Washington,DC:Nuclear Energy Institute,2004.
[10]ASTM Committee D33.ASTM D5163 Standard Guide for Establishing Procedures to Monitor the Performance of Coating Service Level I Coating Systems in an Operating Nuclear Power Plant[S].Pennsylvania:ASTM International,2005.ASTM International,West Conshohocken,PA,2005.
[11]ASTM Committee D33.ASTM D7167 Standard Guide for Establishing Procedures to Monitor the Performance of Safety-Related Coating Service Level III Lining Systems in an Operating Nuclear Power Plant[S].Pennsylvania:ASTM International,2005.
[2]孙汉虹.第三代核电站技术AP1000[M].北京:中国电力出版社,2010.
[3]RAMI N.Influence of gamma irradiation on the chemical and physical properties of DGEDDS/PDA and DGEDDS/MDA epoxy resins[J].Mater.Environ.Sci.,2010,1(4):277-288.
[4]CHARLES E ROSSI.Information notice No.89-77:Debris in containment emergency sumps and incorrect screen configurations[Z].Washington,D.C.:Nuclear Regulatory Commission,1989.
[5]秦国治,田志明.醇溶性无机富锌涂料及其应用[J].现代涂料与涂装,2001,4(5):26-28.
[6]周郁文.聚硅酸乙酯的改性及其应用的研究[J].涂料工业,2001,31(12):14-17.
[7]MARTIN R.Plant engineering:aging degradation of coating service level I coatings-summary of EPRI coating aging project activities[Z].Palo Alto,CA:EPRI,2013.
[8]Technical Committee ISO/TC 35.ISO 12944 paints and varnishes-corrosion protection of steel structures by protective paint systems[S].London:British Standards Institution,1998.
[9]Westinghouse Group.Pressurized water reactor sump performance evaluation methodology[Z].Washington,DC:Nuclear Energy Institute,2004.
[10]ASTM Committee D33.ASTM D5163 Standard Guide for Establishing Procedures to Monitor the Performance of Coating Service Level I Coating Systems in an Operating Nuclear Power Plant[S].Pennsylvania:ASTM International,2005.ASTM International,West Conshohocken,PA,2005.
[11]ASTM Committee D33.ASTM D7167 Standard Guide for Establishing Procedures to Monitor the Performance of Safety-Related Coating Service Level III Lining Systems in an Operating Nuclear Power Plant[S].Pennsylvania:ASTM International,2005.