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It is essential to perform equipment reliability classification in order to devote limited resources to NPP equipment management reasonably, improve equipment reliability and availability while reducing maintenance workload and cost, and enable NPP’s safe, reliable, and economical operation. In light of engineering characteristics of the demonstration fast reactor and the challenges during the construction, an attainable new method was developed to standardize the process of equipment reliability classification and complete the classification of all systems. The differences and characteristics among the methods were compared, the implementation process of the new method was proposed and demonstrated with two real systems. The application shows that the proposed method is efficient, effective and rational, hence can offer to assist other NPPs of similar reactors to implement reliability classification during NPP construction.
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为了将有限的资源合理地应用到核电厂设备管理工作中,提高设备的可靠性和可用性,降低设备检修工作量和成本,使电厂机组能够安全、可靠、经济地运行,有必要对设备进行可靠性分级管理。针对示范快堆工程建设期间的工作特点和挑战,研究并形成了适用的、可行的设备可靠性规范化分级新方法与流程。本文研究分析了其与已有方法的不同与特点,提出了新方法实施的工作流程,并以示范快堆两个实例系统为对象进行了应用说明。实践证明了该新方法的高效、合理与有效性,为后续处于建设阶段的同类堆型开展可靠性分级工作提供了方法与经验。
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, authorsList=刘丙月, 刘伟, 赵新文, 陈超, 王璐, 刘少有, 孔斌)}, authors=[Author(id=1172852569304088911, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149769464771686777, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=liu_by2013@163.com, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1172852569434112339, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149769464771686777, authorId=1172852569304088911, language=EN, stringName=Bing-yue LIU, firstName=Bing-yue, middleName=null, lastName=LIU, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, 2, address=1. College of Nuclear Science and Technology, Naval University of Engineering, Wuhan 430033, China
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1, 2, address=1. 海军工程大学核科学技术学院, 武汉 430033
2. 武汉第二船舶设计研究所第十研究室, 武汉 430064, bio={"content":"
刘丙月(1984—),男,汉族,河北衡水人,博士研究生,高级工程师。研究方向:设备可靠性管理、维修决策。E-mail:liu_by2013@163.com。
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刘丙月(1984—),男,汉族,河北衡水人,博士研究生,高级工程师。研究方向:设备可靠性管理、维修决策。E-mail:liu_by2013@163.com。
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2021(2): 78-86., articleTitle=Construct an integrated linkage planning management system with systemic thinking, refAbstract=null)], funds=null, companyList=[AuthorCompany(id=1172852568955961664, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149769464771686777, xref=null, ext=[AuthorCompanyExt(id=1172852568964350273, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149769464771686777, companyId=1172852568955961664, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=1. College of Nuclear Science and Technology, Naval University of Engineering, Wuhan 430033, China), AuthorCompanyExt(id=1172852568972738882, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149769464771686777, companyId=1172852568955961664, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=1. 海军工程大学核科学技术学院, 武汉 430033)]), AuthorCompany(id=1172852569023070531, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149769464771686777, xref=null, ext=[AuthorCompanyExt(id=1172852569039847748, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149769464771686777, companyId=1172852569023070531, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=2. The Tenth Research Section, Wuhan Second Ship Design and Research Institute, Wuhan 430064, China), AuthorCompanyExt(id=1172852569048236357, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149769464771686777, companyId=1172852569023070531, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=2. 武汉第二船舶设计研究所第十研究室, 武汉 430064)]), AuthorCompany(id=1172852569115345222, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149769464771686777, xref=null, ext=[AuthorCompanyExt(id=1172852569119539527, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149769464771686777, companyId=1172852569115345222, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=3. Nuclear Power Maintenance Center, China Nuclear Power Operation Technology Co., Ltd., Wuhan 430223, China), AuthorCompanyExt(id=1172852569140511048, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149769464771686777, companyId=1172852569115345222, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=3. 中核武汉核电运行技术股份有限公司维修中心, 武汉 430223)]), AuthorCompany(id=1172852569216008522, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149769464771686777, xref=null, ext=[AuthorCompanyExt(id=1172852569220202827, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149769464771686777, companyId=1172852569216008522, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=4. Equipment Section,CNNP Xiapu Nuclear Power Co., Ltd., Ningde 355100, China), AuthorCompanyExt(id=1172852569224397132, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149769464771686777, companyId=1172852569216008522, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=4. 中核霞浦核电有限公司设备处, 宁德 355100)])], figs=[ArticleFig(id=1172852571854225788, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149769464771686777, language=EN, label=Fig.1, caption=
The overall comparison among three methods, figureFileSmall=q9Vej+6fW2GEJeD8BHeneA==, figureFileBig=s1CLOc9OPvh7JIiSEJdI2g==, tableContent=null), ArticleFig(id=1172852571975860605, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149769464771686777, language=CN, label=图1, caption=
3种分级方法整体比较, figureFileSmall=q9Vej+6fW2GEJeD8BHeneA==, figureFileBig=s1CLOc9OPvh7JIiSEJdI2g==, tableContent=null), ArticleFig(id=1172852572034580862, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149769464771686777, language=EN, label=Table 1, caption=
Specific differences among three methods
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| 步骤 | SRCM | AP-913 | 新方法 |
| 3 | 在“系统”层面,判定“系统功能”关键度 | 在“设备”层面,将功能相关设备划组 | 在“系统”层面,利用“系统功能”判定“系统”关键度 |
| 4 | 从系统关键功能、重要功能出发识别设备关键度①,是“自上而下”的分析 | 按照设备失效后果对应的识别条件判定关键度,是“自下而上”的分析 | 按照设备对系统和机组的失效后果,判定关键度,是“自下而上”的分析 |
), ArticleFig(id=1172852572084912511, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149769464771686777, language=CN, label=表1, caption=
3种方法的差异点分析
, figureFileSmall=null, figureFileBig=null, tableContent=
| 步骤 | SRCM | AP-913 | 新方法 |
| 3 | 在“系统”层面,判定“系统功能”关键度 | 在“设备”层面,将功能相关设备划组 | 在“系统”层面,利用“系统功能”判定“系统”关键度 |
| 4 | 从系统关键功能、重要功能出发识别设备关键度①,是“自上而下”的分析 | 按照设备失效后果对应的识别条件判定关键度,是“自下而上”的分析 | 按照设备对系统和机组的失效后果,判定关键度,是“自下而上”的分析 |
), ArticleFig(id=1172852572164604288, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149769464771686777, language=EN, label=Table 2, caption=
Classification process of a critical system
, figureFileSmall=null, figureFileBig=null, tableContent=
设备 编码 | 设备 名称 | 关键 度 | 工作 频度 | 工作 环境 | 正常 状态 | 设备主要 功能 | 失效模式 | 是否 隐性 | 失效对系统功能影响 | 失效对 机组影响 | 关键度 代码 |
LAA 10BB 301 | 除氧器 | CC2 | H | S | 连续 运行 | 储存并提供合格的主给水给主给水泵前置泵 | 外漏,功能丧失,性能劣化,失去完整结构 | 否 | 外漏,失去完整结构导致不能储存及提供合格的主给水;考虑除氧器外漏发生概率低,即使外漏也不会立即导致停机停堆,属于风险重要设备,定级为CC2。性能劣化,功能丧失导致除氧器给水水质不合格 | 除氧器发生泄漏至低低水位概率低,属于风险重要设备 | CC2-j属于风险重要(高风险)设备(CC1级设备除外) |
LAA 10CL 101 | 除氧器水 位低低液 位开关 | NC | L | M | 不动作 | 在除氧器水位低低报警 | 不能开,不能关,堵塞,泄漏 | 否 | 提供液位低低报警,失效无法提供报警,增加运行负担 | 失效增加运行人员负担 | NC-j导致失去重要报警或运行参数无法监视,增加运行人员负担 |
LAA 20AP 001 | 除氧器 循环泵 | NC | H | M | 连续 运行 | 对除氧器再循环给水提供动力 | 不能启动,性能劣化 | 否 | 除氧器给水无法再循环,机组启动延迟 | 失效影响机组启动 | NC-k装换料设备或影响大修关键路径的设备 |
LAA 10AA 405 | 除氧器 安全阀E | NC | L | S | 常关 | 防止除氧器超压 | 外漏,内漏,不能回座 | 否 | 失效不能开启将导致除氧器超压;不能回座将影响除氧器压力 | 如除氧器超压将导致设备损坏 | NC-h属于工业安全等法规监管的设备 |
LAA 10AA 001 | 除氧器 放水阀 | RTM | L | M | 常关 | 对除氧器正常放水管路进行隔离 | 不能开关,内漏,外漏 | 否 | 不能隔离除氧器正常放水管路 | 对机组正常运行无影响 | RTM-a所有不满足关键1级、关键2级和重要设备识别条件的设备 |
), ArticleFig(id=1172852572227518849, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149769464771686777, language=CN, label=表2, caption=
关键系统LAA详细分级过程(部分)
, figureFileSmall=null, figureFileBig=null, tableContent=
设备 编码 | 设备 名称 | 关键 度 | 工作 频度 | 工作 环境 | 正常 状态 | 设备主要 功能 | 失效模式 | 是否 隐性 | 失效对系统功能影响 | 失效对 机组影响 | 关键度 代码 |
LAA 10BB 301 | 除氧器 | CC2 | H | S | 连续 运行 | 储存并提供合格的主给水给主给水泵前置泵 | 外漏,功能丧失,性能劣化,失去完整结构 | 否 | 外漏,失去完整结构导致不能储存及提供合格的主给水;考虑除氧器外漏发生概率低,即使外漏也不会立即导致停机停堆,属于风险重要设备,定级为CC2。性能劣化,功能丧失导致除氧器给水水质不合格 | 除氧器发生泄漏至低低水位概率低,属于风险重要设备 | CC2-j属于风险重要(高风险)设备(CC1级设备除外) |
LAA 10CL 101 | 除氧器水 位低低液 位开关 | NC | L | M | 不动作 | 在除氧器水位低低报警 | 不能开,不能关,堵塞,泄漏 | 否 | 提供液位低低报警,失效无法提供报警,增加运行负担 | 失效增加运行人员负担 | NC-j导致失去重要报警或运行参数无法监视,增加运行人员负担 |
LAA 20AP 001 | 除氧器 循环泵 | NC | H | M | 连续 运行 | 对除氧器再循环给水提供动力 | 不能启动,性能劣化 | 否 | 除氧器给水无法再循环,机组启动延迟 | 失效影响机组启动 | NC-k装换料设备或影响大修关键路径的设备 |
LAA 10AA 405 | 除氧器 安全阀E | NC | L | S | 常关 | 防止除氧器超压 | 外漏,内漏,不能回座 | 否 | 失效不能开启将导致除氧器超压;不能回座将影响除氧器压力 | 如除氧器超压将导致设备损坏 | NC-h属于工业安全等法规监管的设备 |
LAA 10AA 001 | 除氧器 放水阀 | RTM | L | M | 常关 | 对除氧器正常放水管路进行隔离 | 不能开关,内漏,外漏 | 否 | 不能隔离除氧器正常放水管路 | 对机组正常运行无影响 | RTM-a所有不满足关键1级、关键2级和重要设备识别条件的设备 |
), ArticleFig(id=1172852572332376450, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149769464771686777, language=EN, label=Table 3, caption=
Classification process of an important system
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| 设备编码 | 设备名称 | 关键度 | 工作 频度 | 工作 环境 | 正常 状态 | 设备失效影响 | 关键度代码 |
| LCU10AA301 | 10LCU10CF001 上游仪表根阀 | RTM | L | M | 常开 | 仪表根阀处于常开状态,故障后可以进行维修,不会对电厂运行产生重要影响 | RTM-a所有不满足关键1级、关键2级和重要设备识别条件的设备 |
| LCU10AA501 | 10LCU 管线疏水阀 | RTM | L | M | 常关 | 阀门处于常闭状态,疏水阀不能开启导致不能排出管线中的疏水,影响系统的在线,阀门可以及时进行维修,不会产生重要影响 | RTM-a所有不满足关键1级、关键2级和重要设备识别条件的设备 |
| LCU10CP001 | 10LCU入口 压力变送器 | NC | H | M | 连续运行 | 用于主控指示常规岛除盐水压力重要参数。压力变送器故障导致主控失去除盐水压力参数指示或指示异常,会增加运行人员负担 | NC-j导致失去重要报警或运行参数无法监视,增加运行人员负担 |
), ArticleFig(id=1172852572382708099, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149769464771686777, language=CN, label=表3, caption=
重要系统LCU快速分级过程(部分)
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| 设备编码 | 设备名称 | 关键度 | 工作 频度 | 工作 环境 | 正常 状态 | 设备失效影响 | 关键度代码 |
| LCU10AA301 | 10LCU10CF001 上游仪表根阀 | RTM | L | M | 常开 | 仪表根阀处于常开状态,故障后可以进行维修,不会对电厂运行产生重要影响 | RTM-a所有不满足关键1级、关键2级和重要设备识别条件的设备 |
| LCU10AA501 | 10LCU 管线疏水阀 | RTM | L | M | 常关 | 阀门处于常闭状态,疏水阀不能开启导致不能排出管线中的疏水,影响系统的在线,阀门可以及时进行维修,不会产生重要影响 | RTM-a所有不满足关键1级、关键2级和重要设备识别条件的设备 |
| LCU10CP001 | 10LCU入口 压力变送器 | NC | H | M | 连续运行 | 用于主控指示常规岛除盐水压力重要参数。压力变送器故障导致主控失去除盐水压力参数指示或指示异常,会增加运行人员负担 | NC-j导致失去重要报警或运行参数无法监视,增加运行人员负担 |
), ArticleFig(id=1172852572458205572, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149769464771686777, language=EN, label=Table 4, caption=
Statistics of the classification
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| 堆型 | 占比/% |
| CC1 | CC2 | NC | RTM |
| 钠冷快堆 | 0.36 | 3.12 | 59.47 | 37.06 |
| 某压水堆 | 1.0 | 4.0 | 26.8 | 68.2 |
), ArticleFig(id=1172852572563063173, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149769464771686777, language=CN, label=表4, caption=
分级结果统计对比
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| 堆型 | 占比/% |
| CC1 | CC2 | NC | RTM |
| 钠冷快堆 | 0.36 | 3.12 | 59.47 | 37.06 |
| 某压水堆 | 1.0 | 4.0 | 26.8 | 68.2 |
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