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空气调压阀运行环境参数的监控系统设计
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作者 章萌 张小松 《仪表技术与传感器》 CSCD 北大核心 2020年第2期119-123,共5页
某吸气式发动机试验台的空气调压阀及液压驱动系统状态复杂、可靠性低、故障易发。为提高调压阀运行的安全性、可靠性和精确性,设计了其运行环境参数的监控系统。基于工业以太网和NI cRIO实时控制系统,实现了液压驱动系统的油压、油温... 某吸气式发动机试验台的空气调压阀及液压驱动系统状态复杂、可靠性低、故障易发。为提高调压阀运行的安全性、可靠性和精确性,设计了其运行环境参数的监控系统。基于工业以太网和NI cRIO实时控制系统,实现了液压驱动系统的油压、油温、油液污染度、液压缸位移及阀后管路压力等运行环境参数的远程在线监测、显示、记录和报警,并通过对油冷机和排气电磁阀的开关控制,实现了对液压油油温及管路压力的闭环控制。测试结果验证了该监控系统的正确性和实用性。 展开更多
关键词 调压阀 液压系统 运行环境参数 远程 在线监测 闭环控制
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Simulation of MEG Packed Distillation Column Using an Equilibrium Stage Model-Case Study on Operating Parameters of Farsa Petrochemical Company: Assaluyeh-lran 被引量:1
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作者 Noorallh Kasiri YousefDorj 《Journal of Physical Science and Application》 2012年第10期434-440,共7页
Two types of equilibrium and non-equilibrium stage models are generally used to simulate the mass transfer of packed distillation column. Using non-equilibrium model requires the calculation of mass transfer coefficie... Two types of equilibrium and non-equilibrium stage models are generally used to simulate the mass transfer of packed distillation column. Using non-equilibrium model requires the calculation of mass transfer coefficients, thus, usually equilibrium-based methods are preferred to be used for simulations of distillation columns. In this paper, packed column distillation of production of Mono Ethylene Glycol in FARSA SHIMI Company (Assaluyeh-Iran)'s Ethylene Glycol portion has been simulated through using the equilibrium model and solving the related equations. The simulation has been carried out in the MATLAB environment. The column also has been simulated in the Aspen Hysys and Aspen Plus ver. 2006.5 environments. Then, the output has been compared with software results, designing and operating data of the underlying columns which demonstrate good consistency with the model. Having the model validated, the effect of some operating parameters has been analyzed through the model. 展开更多
关键词 DISTILLATION packed column modeling equilibrium and non-equilibrium models.
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