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

A method for extracting flow characteristics of burner air distribution baffle from boiler operation data

A boiler operation and burner technology, applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., can solve the problems of high labor intensity, many working conditions of furnace cold ventilation test, time-consuming and labor-intensive, etc., to achieve high labor intensity , saving ignition start-up time and improving combustion efficiency

Active Publication Date: 2022-04-12
ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY +1
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the large number of secondary air distribution baffles and burner nozzles of large-capacity boilers, there are many cold-state ventilation test conditions in the furnace, the test of air volume or wind speed is time-consuming and labor-intensive, and labor-intensive; in order to facilitate the measurement of burner nozzle wind speed, The Chinese patent with the application number 201520265921.0 discloses a device for testing the characteristics of the secondary air baffle, which improves the measurement conditions of the nozzle wind speed to a certain extent, but the measurement items, test conditions and time-consuming and labor-intensive characteristics of the furnace cold ventilation test not substantially changed

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
  • A method for extracting flow characteristics of burner air distribution baffle from boiler operation data
  • A method for extracting flow characteristics of burner air distribution baffle from boiler operation data
  • A method for extracting flow characteristics of burner air distribution baffle from boiler operation data

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0102] A 300MW tangential combustion pulverized coal boiler adopts a direct blowing pulverization system and is equipped with 5 medium-speed coal mills. The primary air from the outlet of the same coal mill is distributed to 4 fuel nozzles on the same floor. There are 5 floors in total. 20 fuel nozzles, from bottom to top, the fuel nozzles are recorded as layers A, B, C, D, E; there are 19 layers of air nozzles, 4 in each layer, a total of 76; the 19 layers of air nozzles are divided into 6 categories: ① AA layer secondary air, located at the bottom; ② Auxiliary secondary air: a total of 3 layers, respectively CD, DE and EE layer secondary air; ③ oil gun secondary air: a total of 2 layers, respectively AB, BC layer oil Gun secondary air; ④ fuel nozzle perimeter secondary air: a total of 5 layers, namely A perimeter wind, B perimeter wind, C perimeter wind, D perimeter wind, E perimeter wind, ⑤ wall-attached secondary air, a total of 4 layers, respectively BC, DE, EE, and OFA l...

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 extracting the overcurrent characteristics of the burner air distribution baffle from the boiler operation data, which does not need to carry out a special cold-state ventilation test of the furnace, saves the ignition start-up time of the boiler, and saves manpower and material resources; the invention obtains The resistance characteristic curve of the air distribution baffle can be used to measure the air flow of the burner nozzle, so as to monitor and adjust the air distribution of the entire furnace, which can significantly improve the combustion efficiency of pulverized coal in the furnace and reduce the formation of nitrogen oxides.

Description

technical field [0001] The invention belongs to the field of boiler burner operation monitoring and control, in particular to a method for extracting the flow characteristic of the burner air distribution baffle from boiler operation data. Background technique [0002] The flow characteristics of the boiler air distribution baffle refer to the corresponding relationship between its opening and the flow of air flowing through it. It is usually described by the change curve of the flow coefficient or resistance coefficient with the opening. This flow or resistance characteristic curve is a characteristic of the baffle. The important data of plate adjustment performance not only determines the distribution and adjustment characteristics of the air flow into the furnace, but also can be used to measure the air flow of the burner nozzle, so as to monitor and adjust the air distribution of the entire furnace and improve the combustion of pulverized coal. efficiency and reduce the ...

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 Patents(China)
IPC IPC(8): G06F30/20G06F30/28G06F113/08G06F119/14
CPCG06F30/20
Inventor 刘福国崔福兴王守恩
Owner ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY
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