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

Boiler system capable of improving burn-off rate of pulverized coal and reducing NOx generation amount

A technology of burnout rate and production volume, which is applied in the transportation of non-flammable liquid/gas, regulation of fuel supply, combustion air/fuel supply, etc., which can solve technical and economic difficulties in implementation, large amount of changes to the entire boiler system, etc. question

Pending Publication Date: 2021-02-23
付烜
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In view of the fact that low-nitrogen combustion or staged combustion technology is currently popular in boilers, it has been used maturely for many years, the overall combustion effect is already good, and it is also highly compatible with the desulfurization and denitrification facilities supporting the power plant, so rashly change or develop new ones Combustion technology, the amount of changes to the entire boiler system is too large, and it is difficult to implement technically and economically

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
  • Boiler system capable of improving burn-off rate of pulverized coal and reducing NOx generation amount
  • Boiler system capable of improving burn-off rate of pulverized coal and reducing NOx generation amount
  • Boiler system capable of improving burn-off rate of pulverized coal and reducing NOx generation amount

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0011] For a clearer understanding of the technical content of the present invention, the following figure 1 As an example to elaborate:

[0012] figure 1 In order to comply with the idea of ​​the present invention, a type of reconstruction plan for isolating the wind system, the object of specific investigation is a 330MW four-corner tangentially fired pulverized coal furnace, which adopts π-shaped layout and staged combustion. The scope of the modified isolated wind system is within the range of the double dotted line. 1 is the isolation air mixer, which can be one or more parallel connection; 2 is the booster fan, which can be one or more parallel connection; 3 is the hot air flow adjustment valve; 4 is the isolation air temperature adjustment valve; Flow regulating valve.

[0013] In this scheme, the isolated air is a mixture of two streams of air, one cold and one hot. The two streams of air are provided by the blower. The cold air is drawn from the front of the air pr...

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 boiler system capable of improving the burn-off rate of pulverized coal and reducing the NOx generation amount. According to the boiler system, on the basis of a four-cornertangential combustion type industrial coal-fired boiler system, an air isolation system is additionally arranged, namely air with set temperature and flow is introduced from a proper position betweena main combustion area and an ash cooling hopper area, and is injected into the ash cooling hopper of a hearth at an optimal angle by designing an optimized injection speed, and therefore, the purposes of improving the burn-off rate of the pulverized coal and reducing the NOx generation amount are achieved. The isolated air system is not only suitable for newly-built boilers, but also has the advantages of being short in transformation period, small in investment and high in economic return when used for old boiler transformation.

Description

technical field [0001] The invention relates to the fields of clean coal combustion and low-carbon energy saving, specifically a method for improving the burnout rate of pulverized coal while reducing NO x Boiler system that generates volume. It can be applied to newly built boilers in coal-fired power plants, new self-contained coal-fired boilers in petrochemical and other non-electric industries, or system transformation of existing boilers. Background technique [0002] Energy is the foundation and driving force of modernization, and energy supply and security are related to the overall situation of my country's modernization drive. At present, a new round of scientific and technological revolution and industrial transformation has formed a historic intersection with my country's accelerated transformation of the economic development mode, which has put forward new requirements for energy consumption in the process of economic development-clean and low-carbon. [0003] ...

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): F23C7/00F23L1/00F23L7/00F23M5/08F23N1/02
CPCF23C7/00F23L1/00F23L7/007F23M5/08F23N1/02Y02E20/34
Inventor 付烜
Owner 付烜
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