孙斌, 王二朋, 丁洋, 白宏震, 黄咏梅
SUN Bin, WANG Erpeng, DING Yang, BAI Hongzhen, HUANG Yongmei
摘要： A time-frequency signal processing method for two-phase flow through a horizontal Venturi based on adaptive optimal-kernel (AOK) was presented in this paper.First,the collected dynamic differential pressure signal of gas-liquid two-phase flow was preprocessed,and then the AOK theory was used to analyze the dynamic differential pressure signal.The mechanism of two-phase flow was discussed through the time-frequency spectrum.On the condition of steady water flow rate,with the increasing of gas flow rate,the flow pattern changes from bubbly flow to slug flow,then to plug flow,meanwhile,the energy distribution of signal fluctuations show significant change that energy transfer from 15-35 Hz band to 0-8 Hz band;moreover,when the flow pattern is slug flow,there are two wave peaks showed in the time-frequency spectrum.Finally,a number of characteristic variables were defined by using the time-frequency spectrum and the ridge of AOK.When the characteristic variables were visually analyzed,the relationship between different combination of characteristic variables and flow patterns would be gotten.The results show that,this method can explain the law of flow in different flow patterns.And characteristic variables,defined by this method,can get a clear description of the flow information.This method provides a new way for the flow pattern identification,and the percentage of correct prediction is up to 91.11%.
| 1 Steven, R., “A dimensional analysis of two phase flow through a horizontally installed Venturi flow meter”, Flow Meas. Instrum., 19 (6), 342-349 (2008).
2 Sampaio, P.A.B., Faccini, J.L.H., Su, J., “Modeling of stratified gas-liquid two-phase flow in horizontal circular pipes”, Int. J. Heat Mass Transfer, 51, 2752-2761 (2008).
3 Zheng, G.B., Jin, N.D., Jia, X.H., Lv, P.J., Liu, X.B., “Gas-liquid two phase flow measurement method based on combination instrument of turbine flowmeter and conductance sensor”, Int. J. Multiphase Flow, 34 (11), 1031-1047 (2008).
4 Mahvash, A., Ross, A., “Two-phase flow pattern identification using continuous hidden Markov model”, Int. J. Multiphase Flow, 34 (3), 303-311 (2008).
5 Kouame, D., Girault, J.M., Remenieras, J.P., Chemla, J.P., Lethiecq, M., “High resolution processing techniques for ultrasound Doppler velocimetry in the presence of colored noise (Ⅱ) Multiplephase pipe-flow velocity measurement”, IEEE Tans. Ultrason., Ferroelect., Freq. Contr., 50 (3), 267-278 (2003).
6 Zheng, G.B., Jin, N.D., “Multiscale entropy and dynamic characteristics of two-phase flow patterns”, Acta Phys. Sin., 58 (7), 4485-4492 (2009). (in Chinese)
7 Bakshi, B.R., Zhong, H., Jiang, P., Fan, L.S., “Analysis of flow in gas-liquid bubble columns using multi-resolution methods”, Trans. Inst. Chem. Eng., 73A, 608-614 (1995).
8 Wang, Q., Zhou, Y.L., Zhu, G.Q., Zhou, Y.H., “Identification method of gas-liquid two-phase flow pattern based on wavelet energy feature”, Water Conservancy and Electric Power Machinery, 28 (10), 66-70 (2006). (in Chinese)
9 Sun, B., Wang, Q., Zhou, Y.L., “Identification method of gas-liquid two-phase flow pattern based on multi-scale information entropy feature and RBF neural network”, Chin. J. Sci. Instrum., 27 (7), 725-729 (2006). (in Chinese)
10 Chen, G., Huang, Z.Y., Wang, B.L., Li, H.Q., “Flow regimes identification in horizontal pipe using wavelet transform”, Chin. J. Sci. Instrum., 20 (2), 117-120 (1999). (in Chinese)
11 Nguyen, V.T., Euh, D.J., Song, C.H., “An application of the wavelet analysis technique for the objective discrimination of two-phase flow patterns”, Int. J. Multiphase Flow, 36 (9), 755-768 (2010).
12 Lao, L.Y., “Identification of two-phase flow parameters based on the analysis of dynamic pressure drop”, Ph. D. Thesis, Zhejiang University, Hangzhou (1998). (in Chinese)
13 Sun, B., Zhang, H.J., Cheng, L., Zhao, Y.X., “Flow regime identification of gas-liquid two-phase flow based on HHT”, Chin. J. Chem. Eng., 14 (1), 24-30 (2006).
14 Sun, B., Zhang, H.J., “Research on extract and filter of dynamic signal of two-phase flow based on HHT”, Chin. J. Sens. Actuators, 20 (4), 862-865 (2007). (in Chinese)
15 Ding, H., Huang, Z.Y., Song, Z.H., Yan, Y., “Hilbert-Huang transform based signal analysis for the characterization of gas-liquid two-phase flow”, Flow Meas. Instrum., 18 (1), 37-46 (2007).
16 Douglas, L.J., Richard, G.B., “An adaptive optimal-kernel time-frequency representation”, IEEE Trans. Signal Process., 43 (10), 2361-2371 (1995).
17 Uyar, M., Yildirim, S., Gencoglu, M.T., “An expert system based on S-transform and neural network for automatic classification of power quality disturbances”, Expert Systems Appl., 36 (3), 5962-5975 (2009).
18 Bhende, C.N., Mishra, S., Panigrahi, B.K., “Detection and classification of power quality disturbances using S-transform and modular neural network”, Elec. Power Systems Res., 78 (1), 122-128 (2008).
19 Behera, H.S., Dash, P.K., Biswal, B., “Power quality time series data mining using S-transform and fuzzy expert system”, Appl. Soft Comput., 10 (3), 945-955(2010).
20 Salem, M.E., Mohamed, A., Samad, S.A., “Rule based system for power quality disturbance classification incorporating S-transform features”, Expert Systems Appl., 37 (4), 3229-3235 (2010).
21 Zhou, Y.L., Chen, F., Sun, B., “Identification method of gas-liquid two-phase flow regime based on image multi-feature fusion and support vector machine”, Chin. J. Chem. Eng., 16 (6), 832-840 (2008).
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