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6000m^3/h制氧机板式换热器堵塞后的单体加热处理
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作者 武江涛 《冶金动力》 1997年第4期47-49,共3页
介绍了6000m3/h空分设备,由于板式换热器空气通道严重堵塞,传热工况恶化,主冷液氧液面过低而被迫停车的经过,以及所采用的板式单体加热处理方法和注意问题。
关键词 板式换热器 单体加热 液化 制氧机 堵塞
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污氮液化器单体加温的探讨
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作者 戴万胜 《冶金动力》 1990年第2期65-66,共2页
我厂 KDON-1000/1100制氧机在1988年9月份大修理后,因冷箱内局部设备加温不彻底,使制氧机在1989年元月底出现污氮液化器严重堵塞现象,使冷量回收困难,污氮液化器自平衡作用差,板式换热器冷端过冷。虽然两台透平膨胀运转,但主冷液面只能... 我厂 KDON-1000/1100制氧机在1988年9月份大修理后,因冷箱内局部设备加温不彻底,使制氧机在1989年元月底出现污氮液化器严重堵塞现象,使冷量回收困难,污氮液化器自平衡作用差,板式换热器冷端过冷。虽然两台透平膨胀运转,但主冷液面只能维持在40%左右。 展开更多
关键词 液化器 制氧机 板式换热器 污氮 加热 膨胀机 单体加热 冷开车 冷量回收 透平膨胀
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Temperature Control of Bench-Scaled Batch Reactor Equipped with a Monofluid Heating/Cooling System
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作者 TENG Hai-peng SONG Yi-ming 《Journal of Thermal Science》 SCIE EI CAS CSCD 2014年第2期187-195,共9页
An advanced control concept, Predictive Functional Control (PFC), is applied for temperature control of a bench-scaled batch reactor equipped with monofluid heating/cooling system. First principles process models ar... An advanced control concept, Predictive Functional Control (PFC), is applied for temperature control of a bench-scaled batch reactor equipped with monofluid heating/cooling system. First principles process models are developed. Based on achieved models, significant process variables, which are difficult or impossible to measure online, are estimated from easily measured variables, and cascade PFC control strategy has been projected and implemented in Matlab RI 4. The dynamics of individual subunits is explicitly taken into consideration by internal model in the control algorithms, and model uncertainty, various process disturbances are compensated by modifi- cation of internal model. The experimental results present an excellent capability of tracking the set point, and the success of PFC technique as a process control paradigm is illustratively demonstrated. 展开更多
关键词 temperature control batch reactor mono-fluid heating/cooling system
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