Article(id=1148106722645893379, tenantId=1146029695717560320, journalId=1146031787341344770, issueId=1148106708670477182, articleNumber=1003-3033(2025)03-0077-08, orderNo=null, doi=10.16265/j.cnki.issn1003-3033.2025.03.1368, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1728835200000, receivedDateStr=2024-10-14, revisedDate=1734451200000, revisedDateStr=2024-12-18, acceptedDate=null, acceptedDateStr=null, onlineDate=1751659573470, onlineDateStr=2025-07-05, pubDate=1743091200000, pubDateStr=2025-03-28, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1751659573470, onlineIssueDateStr=2025-07-05, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1751659573470, creator=13701087609, updateTime=1751659573470, updator=13701087609, issue=Issue{id=1148106708670477182, tenantId=1146029695717560320, journalId=1146031787341344770, year='2025', volume='35', issue='3', pageStart='1', pageEnd='268', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=0, createTime=1751659570138, creator=13701087609, updateTime=1757401518130, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1172190184155238915, tenantId=1146029695717560320, journalId=1146031787341344770, issueId=1148106708670477182, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1172190184155238916, tenantId=1146029695717560320, journalId=1146031787341344770, issueId=1148106708670477182, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=77, endPage=84, ext={EN=ArticleExt(id=1149767349072474598, articleId=1148106722645893379, tenantId=1146029695717560320, journalId=1146031787341344770, language=EN, title=Chemical process risk assessment utilizing SDG and CBR methodologies, columnId=1149733269173878863, journalTitle=China Safety Science Journal, columnName=Safety engineering technology, runingTitle=null, highlight=null, articleAbstract=
To comprehensively and efficiently analyze and evaluate chemical process risks,a risk analysis and evaluation auxiliary system for chemical processes was designed and developed based on SDG and CBR. The system was integrated with foundational verification functions for layer of protection analysis (LOPA) and safety integrity level (SIL),enabling semi-quantitative risk analysis and evaluation. Additionally,CBR technology was utilized to effectively preserve and reuse historical case experiences in chemical processes,thereby enhancing the efficacy of HAZOP and the auxiliary evaluation system. The system was applied to conduct a risk evaluation of the propylene oxidation to acrylic acid process. The results demonstrate that the system aligns closely with the independent risk evaluation outcomes of the enterprise,exhibiting strong practicality and reliability. The SDG-CBR coupling reasoning mechanism is verified to overcome the reliance of traditional HAZOP on manual experience,achieving a qualitative-to-semi-quantitative transformation in hazard identification while enhancing evaluation efficiency and accuracy.
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为全面高效率分析与评价化工过程风险,设计开发基于符号有向图(SDG)与案例推理(CBR)的化工过程风险分析与评价辅助系统,并集成保护层分析(LOPA)和安全完整性等级(SIL)基础验算功能,实现风险的半定量化分析和评价。此外,利用CBR技术实现对化工过程历史案例经验的有效保存与复用,提高危险与可操作性分析(HAZOP)和评价辅助系统的使用功效。采用该系统开展丙烯氧化制取丙烯酸化工工艺风险评价,结果表明:该系统与企业自主风险评价的结果基本一致,具有良好的实用性和可靠性。SDG-CBR耦合推理机制突破传统HAZOP对人工经验的依赖,实现危险识别从定性到半定量转变,提高评估效率和准确性。
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1 应急管理部 信息研究院,北京 100029, bio={"img":"yeomf4CfbHOZ3AYWVG+frQ==","content":"
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Classification of safety instrument function SIL levels under low requirement operating modes
, figureFileSmall=null, figureFileBig=null, tableContent=
| 序号 | PFDavg | SIL等级 |
| 1 | 10-2~10-1 | 1 |
| 2 | 10-3~10-2 | 2 |
| 3 | 10-4~10-3 | 3 |
| 4 | 10-5~10-4 | 4 |
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低要求操作模式下安全仪表功能SIL划分
, figureFileSmall=null, figureFileBig=null, tableContent=
| 序号 | PFDavg | SIL等级 |
| 1 | 10-2~10-1 | 1 |
| 2 | 10-3~10-2 | 2 |
| 3 | 10-4~10-3 | 3 |
| 4 | 10-5~10-4 | 4 |
), ArticleFig(id=1165678158440313501, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1148106722645893379, language=EN, label=Table 2, caption=
HAZOP analysis results
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| 序号 | 变量 | 偏差 | 原因 | 后果 | 可能 性 | 严重 度 | 风险 等级 | 现有安全措施 | 采取措施后 | |
可能 性 | 严重 度 | 风险 等级 |
| 1 | 丙烯 汽化 器压 力 | 压力 高 | 丙烯汽 化器压 力调节 阀开度 大 | 第一反应器温度升高,可能超温,催化剂粉结损坏,物料泄漏,潜在火灾爆炸,人员伤亡风险 | 4 | 4 | 16 | ①安全阀;②爆炸曲线及爆炸曲线触发报警;③温度高连锁 | 3 | 4 | 12 |
| 2 | 可能超压,设备损坏 | 4 | 4 | 16 | ①压力控制及压力高报警;②丙烯汽化器设安全阀 | 2 | 3 | 6 |
| 3 | 丙烯汽化器温度降低,冷冻水温度降低,可能冻堵,影响系统正常运行 | 4 | 3 | 12 | — | 4 | 3 | 12 |
| 4 | 丙烯汽 化器冷 冻水管 线温度 调节阀 开度大 | 第一反应器温度升高,可能超温,催化剂粉结损坏,物料泄漏,潜在火灾爆炸,人员伤亡风险 | 5 | 4 | 20 | ①安全阀;②爆炸曲线及爆炸曲线触发报警;③温度高连锁 | 3 | 4 | 12 |
| 5 | 可能超压,设备损坏 | 5 | 3 | 15 | ①爆破片;②温度高报警;③安全阀 | 2 | 3 | 6 |
| 6 | 丙烯汽化器温度降低,冷冻水温度降低,可能冻堵,影响系统正常运行 | 5 | 3 | 15 | — | 5 | 3 | 15 |
| 7 | 丙烯汽 化器进 料调节 阀开度 大 | 第一反应器温度升高,可能超温,催化剂粉结损坏,物料泄漏,潜在火灾爆炸,人员伤亡风险 | 5 | 4 | 20 | ①安全阀;②爆炸曲线及爆炸曲线触发报警;③温度高连锁 | 3 | 4 | 12 |
| 8 | 可能超压,设备损坏 | 5 | 4 | 20 | ①爆破片;②温度高报警;③安全阀 | 3 | 3 | 9 |
| 9 | 丙烯汽化器温度降低,冷冻水温度降低,可能冻堵,影响系统正常运行 | 5 | 3 | 15 | — | 5 | 3 | 15 |
), ArticleFig(id=1165678158499033758, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1148106722645893379, language=CN, label=表2, caption=
HAZOP分析结果
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| 序号 | 变量 | 偏差 | 原因 | 后果 | 可能 性 | 严重 度 | 风险 等级 | 现有安全措施 | 采取措施后 | |
可能 性 | 严重 度 | 风险 等级 |
| 1 | 丙烯 汽化 器压 力 | 压力 高 | 丙烯汽 化器压 力调节 阀开度 大 | 第一反应器温度升高,可能超温,催化剂粉结损坏,物料泄漏,潜在火灾爆炸,人员伤亡风险 | 4 | 4 | 16 | ①安全阀;②爆炸曲线及爆炸曲线触发报警;③温度高连锁 | 3 | 4 | 12 |
| 2 | 可能超压,设备损坏 | 4 | 4 | 16 | ①压力控制及压力高报警;②丙烯汽化器设安全阀 | 2 | 3 | 6 |
| 3 | 丙烯汽化器温度降低,冷冻水温度降低,可能冻堵,影响系统正常运行 | 4 | 3 | 12 | — | 4 | 3 | 12 |
| 4 | 丙烯汽 化器冷 冻水管 线温度 调节阀 开度大 | 第一反应器温度升高,可能超温,催化剂粉结损坏,物料泄漏,潜在火灾爆炸,人员伤亡风险 | 5 | 4 | 20 | ①安全阀;②爆炸曲线及爆炸曲线触发报警;③温度高连锁 | 3 | 4 | 12 |
| 5 | 可能超压,设备损坏 | 5 | 3 | 15 | ①爆破片;②温度高报警;③安全阀 | 2 | 3 | 6 |
| 6 | 丙烯汽化器温度降低,冷冻水温度降低,可能冻堵,影响系统正常运行 | 5 | 3 | 15 | — | 5 | 3 | 15 |
| 7 | 丙烯汽 化器进 料调节 阀开度 大 | 第一反应器温度升高,可能超温,催化剂粉结损坏,物料泄漏,潜在火灾爆炸,人员伤亡风险 | 5 | 4 | 20 | ①安全阀;②爆炸曲线及爆炸曲线触发报警;③温度高连锁 | 3 | 4 | 12 |
| 8 | 可能超压,设备损坏 | 5 | 4 | 20 | ①爆破片;②温度高报警;③安全阀 | 3 | 3 | 9 |
| 9 | 丙烯汽化器温度降低,冷冻水温度降低,可能冻堵,影响系统正常运行 | 5 | 3 | 15 | — | 5 | 3 | 15 |
), ArticleFig(id=1165678158553559711, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1148106722645893379, language=EN, label=Table 3, caption=
LOPA analysis of oxidation reactor temperature rise scenario
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| 场景 | 描述 | 初始发 生频率 | 使能 条件 | 风险控制目标及结论 |
| 类别 | 可接受 频率 | 独立保护 层描述 | 独立保 护层 | 风险 差距 | 分析 结论 |
氧化 反应 器温 度升 高 | 氧化第一反应器度调节 阀开度过小或关闭 | 0.01 | 暴露 概率 0.05 | 人员 | 1.0×10-6 | 有爆破片进行 物理防护 | 0.1 | 0.029 | 若SIL=1, 则风险可 接受 |
丙烯汽化器压力调节 阀开度过大 |
丙烯汽化器冷冻水管线 温度调节阀开度大 |
丙烯至第一反应器流量 调节阀开度过大 | 氧化第一反应 器设有爆炸曲 线及爆炸曲线 触发报警 | 0.1 | 0.1 |
空气压缩机出口流量 调节阀开度过大 |
预混合器循环气流量调 节阀开度过小或关闭 |
空气预热器温度 调节阀开度过大 |
), ArticleFig(id=1165678158687777440, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1148106722645893379, language=CN, label=表3, caption=
氧化反应器温度升高场景LOPA分析
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| 场景 | 描述 | 初始发 生频率 | 使能 条件 | 风险控制目标及结论 |
| 类别 | 可接受 频率 | 独立保护 层描述 | 独立保 护层 | 风险 差距 | 分析 结论 |
氧化 反应 器温 度升 高 | 氧化第一反应器度调节 阀开度过小或关闭 | 0.01 | 暴露 概率 0.05 | 人员 | 1.0×10-6 | 有爆破片进行 物理防护 | 0.1 | 0.029 | 若SIL=1, 则风险可 接受 |
丙烯汽化器压力调节 阀开度过大 |
丙烯汽化器冷冻水管线 温度调节阀开度大 |
丙烯至第一反应器流量 调节阀开度过大 | 氧化第一反应 器设有爆炸曲 线及爆炸曲线 触发报警 | 0.1 | 0.1 |
空气压缩机出口流量 调节阀开度过大 |
预混合器循环气流量调 节阀开度过小或关闭 |
空气预热器温度 调节阀开度过大 |
), ArticleFig(id=1165678158771663521, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1148106722645893379, language=EN, label=Table 4, caption=
Calculation results of SIL for high and high temperature interlock of oxidation reactor
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| 回路 | 类别 | 名称 | 冗余 结构 | 未检 失效 比例 | 已检 失效 比例 | 危险失 效率 | 已检危险 失效率 | 未检危险 失效率 | 已检安全 失效率 | 检验测 试时间 间隔/h | 平均恢 复时间/ h | 系统 PFDSIF | SIL 等级 |
氧化 反应 器温 度高 高 | 感应 器 | 温度传 感器 | 2oo3 | 0.1 | 0.05 | 1.26×10-6 | 1.12×10-6 | 1.36×10-7 | 8.42×10-7 | 8 | 8 760 | 2.60×10-2 | SIL1 |
安全 栅 | 2oo3 | 0.1 | 0.05 | 3.50×10-7 | 0 | 3.50×10-7 | 0 | 8 |
逻辑 运算 器 | 主处 理器 | 1oo1 | 0.1 | 0.05 | 3.63×10-7 | 2.38×10-7 | 1.25×10-7 | 0 | 8 |
电源 模块 | 1oo1 | 0.1 | 0.05 | 2.50×10-7 | 2.50×10-7 | 0 | 0 | 8 |
输入 模块 | 1oo1 | 0.1 | 0.05 | 1.90×10-7 | 9.00×10-8 | 1.00×10-7 | 4.32×10-8 | 8 |
输出 模块 | 1oo1 | 0.1 | 0.05 | 2.00×10-7 | 1.90×10-7 | 1.00×10-8 | 1.68×10-8 | 8 |
执行 器 | 继电 器 | 2oo2 | 0.1 | 0.05 | 4.28×10-8 | 0 | 4.28×10-8 | 0 | 24 |
电磁 阀 | 2oo2 | 0.1 | 0.05 | 1.56×10-7 | 1.39×10-7 | 1.74×10-8 | 2.69×10-7 | 24 |
气动 膜 | 2oo2 | 0.1 | 0.05 | 5.60×10-7 | 0 | 5.60×10-7 | 3.51×10-6 | 24 |
| 球阀 | 2oo2 | 0.1 | 0.05 | 1.86×10-7 | 1.06×10-7 | 7.96×10-8 | 0 | 24 |
), ArticleFig(id=1165678158830383779, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1148106722645893379, language=CN, label=表4, caption=
氧化反应器温度高高连锁SIL验算结果
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| 回路 | 类别 | 名称 | 冗余 结构 | 未检 失效 比例 | 已检 失效 比例 | 危险失 效率 | 已检危险 失效率 | 未检危险 失效率 | 已检安全 失效率 | 检验测 试时间 间隔/h | 平均恢 复时间/ h | 系统 PFDSIF | SIL 等级 |
氧化 反应 器温 度高 高 | 感应 器 | 温度传 感器 | 2oo3 | 0.1 | 0.05 | 1.26×10-6 | 1.12×10-6 | 1.36×10-7 | 8.42×10-7 | 8 | 8 760 | 2.60×10-2 | SIL1 |
安全 栅 | 2oo3 | 0.1 | 0.05 | 3.50×10-7 | 0 | 3.50×10-7 | 0 | 8 |
逻辑 运算 器 | 主处 理器 | 1oo1 | 0.1 | 0.05 | 3.63×10-7 | 2.38×10-7 | 1.25×10-7 | 0 | 8 |
电源 模块 | 1oo1 | 0.1 | 0.05 | 2.50×10-7 | 2.50×10-7 | 0 | 0 | 8 |
输入 模块 | 1oo1 | 0.1 | 0.05 | 1.90×10-7 | 9.00×10-8 | 1.00×10-7 | 4.32×10-8 | 8 |
输出 模块 | 1oo1 | 0.1 | 0.05 | 2.00×10-7 | 1.90×10-7 | 1.00×10-8 | 1.68×10-8 | 8 |
执行 器 | 继电 器 | 2oo2 | 0.1 | 0.05 | 4.28×10-8 | 0 | 4.28×10-8 | 0 | 24 |
电磁 阀 | 2oo2 | 0.1 | 0.05 | 1.56×10-7 | 1.39×10-7 | 1.74×10-8 | 2.69×10-7 | 24 |
气动 膜 | 2oo2 | 0.1 | 0.05 | 5.60×10-7 | 0 | 5.60×10-7 | 3.51×10-6 | 24 |
| 球阀 | 2oo2 | 0.1 | 0.05 | 1.86×10-7 | 1.06×10-7 | 7.96×10-8 | 0 | 24 |
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