Design of on-line monitoring system for self-excited deduster
WANG Dongxue
LI Xiaochuan
WEI Tao
HU Haibin
XIANG Wu
Abstract：Abstraet:Due to unobservable operating environment,gas-liquid mixing state of self-excited deduster can not be observed in real time,so it is difficult to avoid dust escape caused by fluctuation of liquid surface and intermittent excitation of traps in gas fluid coupling process,and determining of operating parameters (liquid level,wind speed,etc) of the deduster lacks of scientific basis,so it is difficult to guarantee removal efficiency of the deduster.In order to solve the above problems,an on-line monitoring system for self-excited deduster was designed.The system uses five characteristics parameters as the important identification basis of flow pattern to identify the gas-liquid flow pattern inside the deduster quantitatively,including resistance parameter,liquid level parameter,power spectral density value,relative power spectral density value and frequency characteristic segment of pressure signal.The system can adjust operating parameters of the deduster,and realizes on-line monitoring of gas-liquid mixing state in the selfexcited deduster.Test results show that the system can realize real-time and precise recognition for gasliquid flow pattern of deduster with 95.6 ％ recognition rate.
Keywords：self-excited dedusteron-line monitoringflow pattern recognitiongas-liquid flow patternpower spectral densityresistance parameterliquid level parameter
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：7( 7-13 )