| 低浓度煤层气液化自控难点分析 |
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| 引用本文： | 肖正.低浓度煤层气液化自控难点分析[J].矿业安全与环保,2013(2):105-108. |
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| 作者姓名： | 肖正 |
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| 作者单位： | 瓦斯灾害监控与应急技术国家重点实验室;中煤科工集团重庆研究院瓦斯研究分院 |
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| 摘 要： | 低浓度煤层气易燃易爆,对其进行深冷液化处理时,需要采用十分可靠的控制方案。通过对低浓度煤层气脱水控制方案和脱酸工序再生塔温度控制方案进行分析,提出优化的SFC时序控制和串级PID调节的控制方式,以满足低浓度煤层气液化工艺对安全性的要求,并对其进行了详细描述。
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| 关 键 词： | 低浓度煤层气 液化 DCS集散控制系统 SFC时序控制 串级PID调节 |
Analysis on Difficulties of Automatic Control of Low-concentration Coal-bed Methane Liquefaction |
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| XIAO Zheng.Analysis on Difficulties of Automatic Control of Low-concentration Coal-bed Methane Liquefaction[J].Mining Safety & Environmental Protection,2013(2):105-108. |
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| Authors: | XIAO Zheng |
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| Affiliation: | XIAO Zheng1,2(1.State Key Laboratory of Gas Disaster Monitoring and Emergency Technology,Chongqing 400037,China; 2.Chongqing Research Institute ofChina Coal Technology and Engineering Group,Chongqing 400037,China) |
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| Abstract: | Low-concentration coal-bed methane is inflammable and explosive,a safe and reliable control method should be applied for its liquefaction.Based on the analysis of the dewatering control method of low-concentration coal-bed methane and the temperature control method of de-acid regeneration tower,the optimized SFC sequential control method and the cascade PID regulation control method were proposed and described in details so as to meet the safety requirements of the low-concentration coal-bed methane liquefaction. |
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| Keywords: | low-concentration coal-bed methane liquefaction DCS distributed control system SFC sequential control cascade PID regulation |
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