[1]刘超锋赵伟尹永怀.基于回归的深冷空分增压膨胀机组运行参量软测量建模[J].郑州大学学报(工学版),2015,36(03):92-95.[doi:10.3969/ j. issn.1671 -6833.2015.03.020]
　LlU Chao-feng,ZHAO Wei,YIN Yong-huai,et al.Soft Measurement Modeling about Operation Characteristic Parameters of BoosterExpansion Turbine for Cryogenic Air Separation Unit Based on the Regression Method[J].Journal of Zhengzhou University (Engineering Science),2015,36(03):92-95.[doi:10.3969/ j. issn.1671 -6833.2015.03.020]
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基于回归的深冷空分增压膨胀机组运行参量软测量建模()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
36卷
期数:
2015年03期
页码:
92-95
栏目:
出版日期:
2015-06-30

文章信息/Info

Title:
Soft Measurement Modeling about Operation Characteristic Parameters of BoosterExpansion Turbine for Cryogenic Air Separation Unit Based on the Regression Method
作者:
刘超锋1赵伟2尹永怀3
1.郑州轻工业学院能源与动力工程学院,河南郑州450002;2.河南煤化集团中原大化公司,河南濮阳457000
Author(s):
LlU Chao-feng1; ZHAO Wei1; YIN Yong-huai1; JIN Jia-lin1; WU Xue-hong1; LlU Ya-li1; GONG Yi1
1.School of Energy and Power Engineering, Zhengzhou University of Light Industry,Zhengzhou 450002;2.Zhongyuan DahuaCorporation,Henan Coal & Chemical Industry Group Co. , Ltd. ,Puyang 457000
关键词:
深冷空分设备; 增压膨胀机组; 运行特性参量; 软测量建模
Keywords:
cryogenic air separation unit;  booster expansion turbine;  operating parameters; soft measurementmodeling
分类号:
TB653
DOI:
10.3969/ j. issn.1671 -6833.2015.03.020
文献标志码:
A
摘要:
研究了正在调试的某深冷空分增压膨胀1"机组、2"机组的膨胀端进口压力、膨胀端进口温度、膨胀空气流量、膨胀端出口温度、增压端出口压力和膨胀机转速的软测量建模问题.基于最小二乘法,利用回归的方法，根据运行现场对膨胀量、膨胀机转速的估算需求,研究了软测量建模时提高估算精度的方法.结果表明,采用量纲分析和非线性回归后,相对于实际的运行数据,回归得到的经验关联式精度至少在98%以上,达到了软测量建模的目的,得到9个经验关联式,满足了机组完好但是测量出现问题时生产现场对关联参量估算的需求.
Abstract:
According to expansion air flow,expansion-side inlet pressure,inlet temperature of expansion side,expansion side outlet temperature,boost pressure and expander outlet end speed associated with operatingcharacteristics of booster expansion turbine for cryogenic air separation unit,research about soft sensor model-ing methods is conducted.Regression mathematical models from the operating data of unit 1" and 2* being de-bugged for an oxygen company are estimated and predicted for operation characteristic parameters relationship. The results indicate that the accuracy of the mathematical model is better,precision mathematical model con-sisting of nine equations resulting in at least more than 98 % . The proposed method can be used to: predict theexpansion end-side outlet temperature by expansion of the air flow,the expansion end of inlet pressure and theexpansion inlet temperature; estimate expansion side flow by expander end inlet temperature,the expansionoutlet temperature,and expansion side inlet pressure; predict speed by expansion side flow,expansion sideinlet pressure and expander end inlet temperature;predict booster end outlet pressure by speed;predict ex-pansion side inlet pressure by booster end outlet pressure.
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