Method for analyzing the coal quality for boiler combustion based on monitoring of smoke compositions of boiler

A technology for boiler combustion and boiler flue gas, which is used in instruments, data processing applications, resources, etc.

Active Publication Date: 2015-12-23
STATE GRID CORP OF CHINA +2
View PDF4 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the development of technology, the ash content of coal has been monitored by online instrumen

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
  • Method for analyzing the coal quality for boiler combustion based on monitoring of smoke compositions of boiler
  • Method for analyzing the coal quality for boiler combustion based on monitoring of smoke compositions of boiler
  • Method for analyzing the coal quality for boiler combustion based on monitoring of smoke compositions of boiler

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0054] The method of the present invention will be described in detail below through specific examples.

[0055] A method for monitoring and analyzing boiler combustion coal quality based on boiler flue gas component monitoring, the steps are as follows:

[0056] (1) Monitor the flue gas composition at the entrance of the air preheater, measure the volume percentage concentration of oxygen, carbon dioxide, sulfur dioxide and water in the flue gas, and express it in turn with VpO2, VpCO2, VpSO2, VpH2O, and press formula (1) Calculate the nitrogen percentage concentration VpN2 in the flue gas;

[0057]VpN2=100%-VpO2-VpCO2-VpSO2-VpH2O(1)

[0058] A certain unit adopts out-of-furnace desulfurization, soot blowing stops during normal operation. The data of on-site flue gas composition are as follows:

[0059] O2,％

[0060] The ash data measured by the coal ash online instrument on site is 21%.

[0061] (2) Assuming the sulfur content MpSF in coal combustion, MpCb is c...

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 a method for analyzing the coal quality for boiler combustion based on monitoring of smoke compositions of a boiler. The concentration analysis data based on the smoke compositions in the entry of an air pre-heater comprises oxygen amount, sulfur dioxide, carbon dioxide, moisture and nitrogen. Combined with the ash data of the on-site coal quality for boiler combustion, by means of a specific calculating method and steps, the composition of each element for the burning coal quality during the normal operation can be determined and the problem that how to accurately monitor the coal quality for boiler combustion during the normal operation can be solved. The monitoring method provided by the invention is simple and convenient, and provides a possible selection for monitoring the coal quality for boiler combustion accurately for a power plant.

Description

technical field [0001] The invention relates to a method for monitoring and analyzing boiler combustion coal quality based on boiler flue gas component monitoring. Background technique [0002] The monitoring of boiler combustion coal quality can provide a basis for predicting the calorific value of coal combustion quality in power plants. With the development of technology, the ash content of coal has been monitored by online instruments, but how to realize the online analysis of elements in combustion coal is still a difficult problem. [0003] Therefore, there is an urgent need for an on-line analysis method based on field measurement data to solve the current problem. Contents of the invention [0004] The object of the present invention is to provide a method for monitoring and analyzing boiler combustion coal quality based on boiler flue gas composition monitoring based on the above technical status. [0005] The present invention adopts following technical scheme:...

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
IPC IPC(8): G06Q10/06G06Q50/06
Inventor 杨海生
Owner STATE GRID CORP OF CHINA
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap