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

Multichannel rotational flow coal burner

A technology of pulverized coal burner and cyclone, which is applied in the direction of burner, burner for burning powder fuel, combustion method, etc. It can solve the problems of insufficient combustion and poor stability of pulverized coal flame, so as to avoid the reduction of secondary air volume Small, to avoid the effect of secondary air volume increase

Inactive Publication Date: 2011-12-07
HARBIN INST OF TECH
View PDF3 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a multi-channel swirl pulverized coal burner in order to solve the problems of poor stability, insufficient combustion and fully diffused airflow in the pulverized coal flame of the existing swirl pulverized coal burner

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
  • Multichannel rotational flow coal burner
  • Multichannel rotational flow coal burner
  • Multichannel rotational flow coal burner

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0012] Specific implementation mode one: as Figure 1~4 As shown, the multi-channel swirl pulverized coal burner of this embodiment includes a primary air duct 1, a first secondary air duct 3, a second secondary air duct 4, a third secondary air duct 5, and a secondary air regulating duct 6 and a plurality of conical separation rings 2 with different diameters, the primary air duct 1 is provided with a plurality of conical separation rings 2 with different diameters, and the plurality of conical separation rings 2 with different diameters are The length direction of the air duct 1 is arranged in order from large to small, and the small end of each conical separation ring 2 is directed towards the outlet end of the primary air duct 1. The swirl pulverized coal burner also includes a first swirler 3- 1. The second cyclone 4-1, the third secondary air duct damper 5-1 and the secondary air regulating duct damper 6-1, one end of the primary air duct 1 is set in the first secondary ...

specific Embodiment approach 2

[0013] Specific implementation mode two: as figure 2 As shown, the swirl pulverized coal burner described in this embodiment also includes a first secondary air duct damper 3-2 and a secondary air second duct damper 4-2, and the first secondary air duct damper 3-2 It is arranged in the first secondary air duct 3 , and the second secondary air duct damper 4 - 2 is arranged in the second secondary air duct 4 . With such a design, the independent adjustment of the air volume in the first secondary air duct 3 and the second secondary air duct 4 can be realized, making the operation adjustment of the burner more flexible and convenient when the secondary air volume changes greatly. Other components and connections are the same as those in the first embodiment.

specific Embodiment approach 3

[0014] Specific implementation mode three: as image 3 As shown, the swirl pulverized coal burner in this embodiment also includes a third swirler 5-2 and a fourth swirler 6-2, and the third swirler 5-2 is arranged at the second In the third pipeline 5 , the fourth cyclone 6 - 2 is arranged in the secondary air regulating pipeline 6 . With such a design, the wind in the third secondary air duct 5 and the secondary air regulating duct 6 can form a swirling flow. Other compositions and connections are the same as those in the first or second embodiment.

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 to a multichannel rotational flow coal burner and relates to a rotational flow coal burner, and the multichannel rotational flow coal burner is used for solving the problems that the coal dust flame of the existing rotational flow coal burner has bad stability, and the burning is insufficiency and the perfect diffusion airflow exists. The burner provided by the invention is characterized in that one end of a primary air pipeline is arranged in a secondary air first pipeline, and the secondary air first pipeline is arranged in a secondary air second pipeline; the secondary air second pipeline is arranged in a secondary air third pipeline, and the secondary air third pipeline is arranged in a secondary air regulating pipeline; a first swirler is arranged in the secondary air first pipeline, and a second swirler is arranged in the secondary air second pipeline; and the ventilation door of the secondary air third pipeline is arranged in the secondary air third pipeline, and the ventilation door of the secondary air regulating pipeline is arranged in the secondary air regulating pipeline. The rotational flow coal burner provided by the invention is used for boiler combustion.

Description

technical field [0001] The invention relates to a swirl pulverized coal burner. Background technique [0002] Coal is the main energy source in my country, and pulverized coal combustion occupies a large proportion in power plants in the power industry and other industries. Although the pulverized coal boiler combustion system works under the design conditions (including design load, design coal type, etc. Optimum performance can be achieved when the combustion system is not designed for operation. For the swirl burner, when the area of ​​the secondary air nozzle of the burner remains unchanged, when the air volume of the secondary air deviates from the design value, the wind speed and swirl intensity at the outlet of the secondary air channel will deviate from the design value, thereby affecting the combustion. The overall combustion performance of the device. When the load decreases and the boiler overfired air (OFA) air volume increases, the secondary air volume will dec...

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): F23D1/02
Inventor 陈智超李争起王振旺朱群益曾令燕遆曙光
Owner HARBIN INST OF TECH
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