空压站压力流量控制的理论分析及实验建模
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摘要
空压站的压力流量控制系统可以稳定容积式工业空压站系统压力的波动,减小系统的耗气量,从而有效降低整个空压站系统的能耗。本文主要将容积式工业空压站的压力流量控制的理论分析和实验建模相结合,通过对理论数学模型的推导从而指导实验,利用Matlab拟合工具箱的数据处理和绘图功能对现场实验数据进行拟合处理,将理论的数学模型和通过实验数据拟合得出来的数学模型进行对比,分析出通过实验得出来的数学模型相比理论数学模型而言更加准确。可以通过此方法为构建容积式工业空压站压力流量的控制系统提供数学模型,对于降低工业空压站的能耗具有一定的意义。
The pressure flow control system of air compressor station can stabilize the pressure fluctuation of volumetric industrial air compressor station system and reduce the gas consumption of system, thus effectively reducing the energy consumption of the entire air compressor station system. This paper mainly combines the theoretical analysis and experimental modeling of pressure flow control of positive displacement industrial air compressor station. Guided the experiment through the derivation of the theoretical mathematical model, and used the data processing and drawing function of Matlab fitting toolbox to fit the field experimental data, the theoretical mathematical model is compared with that obtained through experimental data fitting, and the experimental mathematical model is more accurate than the theoretical mathematical model. This method can provide a mathematical model for constructing the control system of pressure flow of the volumetric industrial air compressor station,which is of certain significance for reducing the energy consumption of the industrial air compressor station.
The pressure flow control system of air compressor station can stabilize the pressure fluctuation of volumetric industrial air compressor station system and reduce the gas consumption of system, thus effectively reducing the energy consumption of the entire air compressor station system. This paper mainly combines the theoretical analysis and experimental modeling of pressure flow control of positive displacement industrial air compressor station. Guided the experiment through the derivation of the theoretical mathematical model, and used the data processing and drawing function of Matlab fitting toolbox to fit the field experimental data, the theoretical mathematical model is compared with that obtained through experimental data fitting, and the experimental mathematical model is more accurate than the theoretical mathematical model. This method can provide a mathematical model for constructing the control system of pressure flow of the volumetric industrial air compressor station,which is of certain significance for reducing the energy consumption of the industrial air compressor station.
引文
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[2]王福生,孟晓风.一种气体压力控制方法及应用[J].测控技术,2001,(04):26-28+31.
[3]李娟,刘鸿飞.高压气体压力及流量控制系统[J].仪表技术与传感器,2007,(05):35-36.
[4]张谦,赵远扬,王乐,何明,李连生.压缩空气系统节能技术的研究进展[J].流体机械,2016,44(03):38-40+17.
[5] G.Sassi,A.Demichelis,M.P.Sassi.Air Flow Rate Thermal Control System at Low Pressure Drop[J].Flow Measurement and Instrumentation,2014,35.
[6] Coogan,James J,Coogan,Joseph C.Effect of Duct Pressure on Air Flow Control Dynamics[J].ASHRAE Transactions,2015,121.
[7] R. Rani Hemamalini,P. Partheeban,J. Sarat Chandrababu,S.Sundaram.The Effect on Pressure Drop Across Horizontal Pipe and Control Valve for Air/palm Oil Twophase Flow[J].International Journal of Heat and Mass Transfer,2004,48(14).
[8] Yoshitomo ASAI,Nobutaka TAKAHASHI. Two-Variable and Two-Degree-of-Freedom Sliding Mode Control for Air Pressure and Flow in a Fuel Cell System[J].Journal of System Design and Dynamics,2010,4(5).
[9] Michael A. Danzer,Jorg Wilhelm,Harald Aschemann,Eberhard P. Hofer. Model-based Control of Cathode Pressure and Oxygen Excess Ratio of a PEM Fuel Cell System[J].Journal of Power Sources,2007,176(2).
[10] Diego Vittorini,Roberto Cipollone. Energy Saving Potential in Existing Industrial Compressors[J].Energy,2016,102.
[11]张瑞平,赵军,朱晓琳.空压站集群控制系统研究[J].压缩机技术,2016,(06):47-50.
[12]秦宏波.容积式空压机系统耗能特性的基础研究及其节能应用[D].上海:上海理工大学,2011.
[13]费人杰.气体管道通用计算方法[J].压缩机技术,2001,(02):13-15.
[14]归柯庭,汪军,王秋颖.工程流体力学[M].北京:科学出版社,2003:297-298.
[15]戚非,闫勇,田应.基于MATLAB的多项式拟合[J].实验室科学,2006,(05):63-65.