Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Online soft measurement method for as-fired coal amount based on burner video signals

A technology of the amount of coal into the furnace and video signals, which is applied in the field of combustion flame image processing, can solve the problems that the model performance is not mentioned, and the amount of pulverized coal into the boiler combustion system cannot be realized, so as to achieve the effect of optimal operation

Inactive Publication Date: 2020-01-14
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
View PDF5 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The coal quantity signal measuring point is generally located on the coal conveying belt, and is shared by multiple burners, which cannot realize the expected amount of pulverized coal entering the furnace at the current burner at the current moment as expected by the modeling of the boiler combustion system
[0003] In terms of soft measurement of coal quantity into the furnace, Cuicui Liu of North China Electric Power University proposed that field data obtained from DCS be reduced in dimension using PCA, and then SVM was used to build a soft measurement model of coal quantity, and achieved good results under steady-state conditions. Prediction effect, but does not mention the model performance under variable working conditions

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Online soft measurement method for as-fired coal amount based on burner video signals
  • Online soft measurement method for as-fired coal amount based on burner video signals
  • Online soft measurement method for as-fired coal amount based on burner video signals

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0030] The combustion of pulverized coal in the boiler directly affects the temperature of the boiler furnace. Through the present invention, the amount of pulverized coal in the furnace can be measured online. The main steps are as follows: figure 1 shown.

[0031] Combustion image is collected by burner combustion image sensor, what the embodiment of the present invention uses is the 8-bit RGB color combustion image that CCD camera obtains, as figure 2 shown. The RGB image has three channels, which correspond to the red, green, and blue components of the color image respectively. Firstly, the burning image is processed in gray scale, which is expressed by the following formula. The processed image is as follows: image 3 shown

[0032]

[0033] In the formula, , , ——the value corresponding to each channel at the pixel point; ——...

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

No PUM Login to View More

Abstract

The invention discloses an online soft measurement method for the as-fired coal amount based on burner video signals, and belongs to the technical field of burning flame image processing. The method comprises the steps that pulverized coal combustion image features collected by a burner flame image sensor are extracted, an edge trace method is adopted for calculating the area and concentration ofa burning region, on the basis of current operating state signals of a boiler, the as-fired coal amount is obtained through an as-fired coal amount soft measurement model, real-time online measurementof the as-fired coal amount of the boiler is achieved, supports are supplied to refined burning of the boiler, and a foundation is laid for safe, stable and optimized operation of the boiler.

Description

technical field [0001] The invention belongs to the technical field of combustion flame image processing, and in particular relates to an online soft measurement method for the amount of coal fed into a furnace based on a video signal of a burner. Background technique [0002] In my country, coal, as a conventional energy that is easy to mine, transport, and utilize, is widely used in thermal power generation. However, due to the large-scale utilization of coal resources, the problems of insufficient coal resources and environmental pollution are becoming more and more serious. It is of great practical significance to study how to realize the fine combustion of coal so as to improve the utilization rate of coal resources and reduce the emission of pollutants such as nitrogen oxides. To realize fine coal combustion, it is necessary to establish an accurate boiler combustion dynamic model. However, the actual operation of power plant boilers involves many links, including mult...

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
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): F23M11/04
CPCF23M11/04
Inventor 杨国田何雨晨李新利刘禾王孝伟
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com