炼油技术与工程 ›› 2022, Vol. 52 ›› Issue (7): 26-29.

• 机械设备 • 上一篇    下一篇

煤气化粗合成气吸附除尘器压差信号分析

曹均丰;柳伟;刘昶;郝文月;郭俊辉;廖杰峰;谢文杰;黄薇   

  1. 中国石油化工股份有限公司大连石油化工研究院
  • 收稿日期:2022-05-06 出版日期:2022-07-15 发布日期:2022-07-15
  • 作者简介:曹均丰，工程师，硕士学位，2011年毕业于辽宁石油化工大学化学工艺专业，从事加氢裂化技术工作。联系电话：13942313761,E-mail:caojunfeng.fshy@sinopec.com。;

Analysis of differential pressure signal of adsorption dust collector for coal gasification crude syngas

Cao Junfeng;Liu Wei;Liu Chang;Hao Wenyue;Guo Junhui;Liao Jiefeng;Xie Wenjie;Huang Wei   

  1. SINOPEC Dalian Research Institute of Petroleum and Petrochemicals
  • Received:2022-05-06 Online:2022-07-15 Published:2022-07-15

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摘要：

在煤气化粗合成气除尘器内分级装填惰性保护剂，对煤气化粗合成气进行了552 d的除尘处理。在此期间，每天对除尘器入口与出口的压差信号进行测量，对压差信号进行了一维离散小波分析。通过分析对比，采用db5小波，在尺度为7、保留能量为99.78%时，分析效果较好。然后采用傅里叶拟合、指数拟合、高斯拟合、线性拟合和正弦拟合的方法对消噪处理后的压差信号进行拟合，拟合优度R2分别为0.994 9,0.996 8,0.997 4,0.999 6,0.998 9,拟合优度R2均在0.99以上。

关键词: 煤气化, 粗合成气, 吸附除尘器, 压差信号, 小波消噪, 指数拟合, 傅里叶拟合

Abstract:

Inert protective agent is filled in the dust collector of coal gasification crude syngas by stages, and the coal gasification crude syngas is dedusted for 552 d. During this period, the differential pressure signal at the inlet and outlet of the dust collector is measured every day, and the differential pressure signal is analyzed by one-dimensional discrete wavelet. Through analysis and comparison, when db5 wavelet is used, the scale is 7 and the reserved energy is 99.78%, the analysis effect is better. Then Fourier fitting, exponential fitting, Gaussian fitting, linear fitting and sinusoidal fitting are used to fit the denoised differential pressure signal. The goodness of fit R2 is 0.994 9, 0.996 8, 0.997 4, 0.999 6 and 0.998 9 respectively, and the goodness of fit R2 values are all above 0.99.

Key words: coal gasification, crude syngas, adsorption dust collector, differential pressure signal, wavelet noise reduction, exponential fitting, Fourier fitting