| 反渗透海水淡化系统“脱盐率与产水量下降”故障树分析 |
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| 引用本文： | 姜周曙,翁翔彬,王剑,雷淳正.反渗透海水淡化系统“脱盐率与产水量下降”故障树分析[J].化工学报,2014,65(6):2172-2178. |
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| 作者姓名： | 姜周曙 翁翔彬 王剑 雷淳正 |
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| 作者单位： | 杭州电子科技大学自动化学院, 浙江 杭州 310018 |
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| 基金项目： | 国家科技支撑计划重点项目（2009BAB47B06）。 |
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| 摘 要： | 故障树分析是一种逻辑演绎的故障诊断方法，在核反应堆和航天器可靠性等领域已得到成功应用。反渗透法是目前应用最广泛的海水淡化方法。“脱盐率与产水量下降”是反渗透海水淡化系统中最为典型且损失重大的故障类型。基于对反渗透海水淡化膜组件结构和系统工作流程与机理的深入分析，给出了“脱盐率与产水量下降”的故障树；利用布尔代数求出最小割集及最小径集，完成了对故障基本事件的结构重要度分析，对故障基本事件进行了危险等级划分并提出了上述故障的处理方法。研究工作为超大规模反渗透海水淡化故障诊断专家系统中知识库的构建提供了一套科学实用的方法。
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| 关 键 词： | 反渗透 脱盐 膜 故障树分析法 安全 结构重要度 |
| 收稿时间： | 2013-08-07 |
| 修稿时间： | 2014-02-13 |
Fault tree analysis on decreases of desalination rate and permeate flow rate of seawater reverse osmosis desalination system |
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| JIANG Zhoushu,WENG Xiangbin,WANG Jian,LEI Chunzheng.Fault tree analysis on decreases of desalination rate and permeate flow rate of seawater reverse osmosis desalination system[J].Journal of Chemical Industry and Engineering(China),2014,65(6):2172-2178. |
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| Authors: | JIANG Zhoushu WENG Xiangbin WANG Jian LEI Chunzheng |
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| Affiliation: | School of Automation, Hangzhou Dianzi University, Hangzhou 310018, Zhejiang, China |
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| Abstract: | Fault tree analysis (FTA) is a deductive fault diagnosis, which has been successfully applied in such areas as the assessment of reliability of nuclear reactors and spacecrafts. Currently reverse osmosis (RO) is the most widely used seawater desalination methodology. The decline of both desalination rate and permeate flow rate is considered the most typical type of fault which causes significant loss in the seawater reverse osmosis (SWRO) system. Based on an in-depth analysis of the component structure and operational principle of the seawater reverse osmosis membrane, this paper manages to work out the fault tree of the decline of desalination rate and permeate flow rate. With the help of Boolean algebra, the minimal cut sets and minimal path sets were successfully established, and the analysis of the importance of basic events structure was finally completed. This research provides a set of scientific and practical methods for the construction of the knowledge base in the SWRO fault diagnosis expert system. |
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| Keywords: | reverse osmosis desalination membranes fault tree analysis safety structural importance |
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