Method for measuring content of gas-solid two-phase flow dust carbon content based on signal energy method
A technology of signal energy and measurement method, applied in measurement devices, material analysis by electromagnetic means, instruments, etc., can solve the problems of poor real-time performance and high algorithm complexity, and achieve the effect of solving poor real-time performance.
Active Publication Date: 2018-03-06
XIAN UNIV OF TECH
View PDF3 Cites 4 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] The purpose of the present invention is to provide a method for measuring the carbon content of dust in gas-solid two-phase flow based on the signal energy method, so as to solve the problem of poor real-time performance and high algorithm complexity existing in the measurement of dust carbon content in gas-solid two-phase flow. The problem
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0022] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0023] Such as figure 1 As shown, the dust particles flowing through the pipeline generate an electrostatic signal during the collision, and obtain a weak electrical signal through the electrostatic sensor, and the signal conditioning circuit performs amplification and filtering processing on the weak electrical signal, and collects it through the signal acquisition module, and the signal processing module realizes the present invention The corresponding algorithm in the system can detect the carbon content of the dust particle sample to be tested online in real time.
[0024] Such as Figure 2-3 As shown, a gas-solid two-phase flow dust carbon content measurement method based on the signal energy method includes the following steps:
[0025] Step 1: The carbon content of the existing q types is c 1 ,c 2 ,...,c q (c 1 2 q ) dust sample,...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a method for measuring the gas-solid two-phase flow dust carbon content based on a signal energy method. The method comprises the following steps: acquiring gas-solid two-phaseflow electrostatic signal sequences of dust samples with different carbon contents based on an electrostatic sensor; performing square sum processing on the electrostatic signal sequences to obtain asignal energy value and calibrating the dust carbon content by adopting the signal energy method; performing cubic spline interpolation fitting on the carbon content and the signal energy and discretizing to obtain a carbon content and signal energy corresponding table; realizing measurement on the content of carbons in unknown dust samples through a look-up table method. The method disclosed bythe invention has the benefits that the problems of poor real-time performance and high algorithm complexity existing in the current dust carbon content measurement problem are solved, and real-time and accurate measurement on the content of carbons in dust particles flowing through a pipeline is realized.
Description
technical field [0001] The invention belongs to the technical field of signal detection, and in particular relates to a method for measuring the carbon content of gas-solid two-phase flow dust based on a signal energy method. Background technique [0002] In actual thermal power generation, the carbon content of different sources of combustion coal is different, which often causes problems such as insufficient boiler output, reduced combustion efficiency, and unit operation failure. In severe cases, it will lead to major accidents such as boiler fire extinguishing and unit shutdown. Insufficient combustion of pulverized coal will also lead to boiler coking, serious combustion exhaust gas pollution and other problems. Therefore, real-time online measurement of carbon content in pulverized coal in gas-solid two-phase flow is of great significance to the economical and safe operation of boilers, energy saving and emission reduction. [0003] Most of the existing dust carbon co...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/60
Inventor 弋英民税莹
Owner XIAN UNIV OF TECH