Combustion device of W flame boiler and W flame boiler

A technology for a combustion device and a boiler, which is applied in the field of boiler combustion, can solve the problems of increasing the ignition heat of the pulverized coal gas flow, delaying the ignition of the pulverized coal gas flow, and other problems, and achieves the effect of reducing the generation of NOx.

Inactive Publication Date: 2015-07-01
YANTAI LONGYUAN POWER TECH
View PDF7 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the nozzle arrangement of the burner makes the pulverized coal flow mixed with the secondary air in a large amount at the ini

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
  • Combustion device of W flame boiler and W flame boiler
  • Combustion device of W flame boiler and W flame boiler
  • Combustion device of W flame boiler and W flame boiler

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0019] The present invention will be described more fully below with reference to the accompanying drawings, in which exemplary embodiments of the present invention are illustrated. The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention. The technical solutions of the present invention will be described in various aspects below in conjunction with the figures and embodiments.

[0020] Hereinafter, for the convenience of description, the “left”, “right”, “up” and “down” referred to below are consistent...

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 combustion device of a W flame boiler and the W flame boiler. The combustion device comprises a pulverized coal pipeline, a pulverized coal concentration separation device, a pulverized coal airflow pipeline and a secondary air pipeline. The pulverized coal airflow pipe comprises a main air pipeline and an air lack pipeline; the tail end of the main air pipeline is provided with a main air spraying opening connected with a combustion chamber, and the tail end of the air lack pipeline is provided with an air lack spraying opening connected with the combustion chamber; the tail end of the secondary air pipeline is provided with a secondary air spraying opening connected with the combustion chamber; and the main air spraying opening, the air lack spraying opening and the secondary air spraying opening are formed in a furnace arch, and the air lack spraying opening is formed between the main air spraying opening and the secondary air spraying opening. The secondary air spraying opening is close to a front wall or a rear wall, and the main air spraying opening is close to a center of the combustion chamber. According to the combustion device of the W flame boiler and the W flame boiler, mixing of main air and secondary air is postponed, and generation of NOx is reduced; burning off of pulverized coal particles is ensured; and the problems that the pulverized coal particles of the W flame boiler are hard to ignite, hard to burn off, prone to scorification, and high in NOx emission are solved.

Description

technical field [0001] The invention relates to the technical field of boiler combustion, in particular to a combustion device of a W-flame boiler and a W-flame boiler. Background technique [0002] W Flame Boiler is a boiler specially designed to burn low-volatile coals, and has obvious advantages when burning low-volatile coals such as anthracite and low-quality lean coal. However, in the combustion process of W-flame boilers, there are generally problems such as poor burnout of pulverized coal, poor combustion stability, boiler slagging and high NOx emissions. In order to make the pulverized coal ignite in time, stably burn and reduce the amount of NOx in the furnace, W flame boilers often use fuel classification and air classification technology. [0003] At present, some W flame boiler burner nozzles adopt the direct current slit type, such as Figure 1A shown, and the burners are arranged in groups as Figure 1B shown. The air flow of pulverized coal and the seconda...

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): F23C7/00F23K3/02
Inventor 张文振张超群李保亮刘鹏飞王家兴王西伦赖金平
Owner YANTAI LONGYUAN POWER TECH
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