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制氢装置除氧器压力超高问题分析 被引量:1
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作者 杨明良 刘固基 +1 位作者 方友 季文中 《天然气化工—C1化学与化工》 CAS CSCD 北大核心 2014年第3期66-68,80,共4页
为了解决制天然气制氢装置二系列除氧器压力超高的问题,通过分析两系列冷换部分温度的差异,利用ASPEN PLUS作为分析工具,对冷换部分的换热进行了深入的研究,提出了导致压力超高的两大原因是变换气中水蒸汽流量超高以及除氧器顶部放空管... 为了解决制天然气制氢装置二系列除氧器压力超高的问题,通过分析两系列冷换部分温度的差异,利用ASPEN PLUS作为分析工具,对冷换部分的换热进行了深入的研究,提出了导致压力超高的两大原因是变换气中水蒸汽流量超高以及除氧器顶部放空管线堵塞,并进行了论证。所得到的结果与猜想十分吻合。 展开更多
关键词 制氢 冷换系统 除氧器压力
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Temperature fault-tolerant control system of CSTR with coil and jacket heat exchanger based on dual control and fault diagnosis 被引量:1
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作者 WANG Zai-ying WANG Guo-xin 《Journal of Central South University》 SCIE EI CAS CSCD 2017年第3期655-664,共10页
For the characteristics of the continuous stirred-tank reactor(CSTR) with coil and jacket cooling system,a CSTR temperature dual control solution based on the analysis of the CSTR exothermic reaction control character... For the characteristics of the continuous stirred-tank reactor(CSTR) with coil and jacket cooling system,a CSTR temperature dual control solution based on the analysis of the CSTR exothermic reaction control characteristic was proposed for an organic material polymerization production.The control solution has passive fault-tolerant ability for the jacket cooling water cutting off fault and active fault-tolerant potential for the coil cooling water cutting off fault,and it has good control ability,high saving energy and reducing consumption performance.Fault detection and diagnosis and fault-tolerant control strategy are designed for the coil cooling fault to achieve the active fault-tolerant control function.The CSTR temperature dual control,process fault detection and diagnosis and active fault-tolerant control were full integrated into the CSTR temperature fault-tolerant control system,which achieve fault tolerance control of CSTR temperature for any severe malfunction of jacket cooling or coil cooling cutting off,and the security for CSTR exothermic reaction is improved.Finally,the effectiveness of this system was validated by semi-physical simulation experiment. 展开更多
关键词 continuous stirred-tank reactor (CSTR) exothermic reaction dual control process fault diagnosis fault-tolerant control
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