Combustion adjustment and optimization method and system for thermal power plant boilers

A technology for boiler combustion and optimization methods, which is applied in the field of thermal power plants and can solve problems such as large nitrogen oxides, emissions, and harm to the environment.

Active Publication Date: 2017-09-01
ELECTRIC POWER RES INST OF GUANGDONG POWER GRID
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Based on this, it is necessary to provide a thermal power plant boiler combustion adjustment optimization method and system with accurate combustion adjustment to reduce the NOx emissions

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 adjustment and optimization method and system for thermal power plant boilers
  • Combustion adjustment and optimization method and system for thermal power plant boilers
  • Combustion adjustment and optimization method and system for thermal power plant boilers

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] Such as figure 1 As shown, a thermal power plant boiler combustion adjustment optimization method, including steps:

[0024] S100: Keep the boiler load stable, adjust the oxygen quantity at the outlet of the economizer in the boiler, and determine the optimal operating oxygen quantity of the boiler.

[0025] The economizer refers to the heating surface in the tail flue of the boiler that heats the boiler feed water into saturated water under the drum pressure. Since the operating environment and operating conditions of boilers under different load conditions will be quite different, in order to achieve accurate adjustment and optimization of boiler combustion in thermal power plants, it is necessary to conduct separate studies for different loads. Specifically, firstly, adjust the oxygen quantity at the outlet of the economizer, take the oxygen quantity at the outlet of the economizer as the control parameter, and realize the change of the total air volume by changing ...

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 provides a combustion adjustment and optimization method and system for boilers in thermal power plants, which can keep the boiler load stable, adjust the oxygen volume at the outlet of the economizer in the boiler, determine the optimal operating oxygen volume of the boiler, keep the boiler at the optimal operating oxygen volume, and improve the efficiency of the boiler. Conduct the experiment of changing the opening of SOFA damper to obtain the best combination of oxygen amount and SOFA damper opening of the boiler under the current load, and modify the control function of the boiler according to the best combination of oxygen amount and SOFA damper opening under the current load , conduct a thermal adjustment test on the boiler so that the boiler is in the best operating condition under the current load, adjust the boiler load, and repeat the above operations to obtain the best operating condition of the boiler under different loads. Throughout the process, based on the actual combustion conditions of the combustion boiler, through the optimal operating oxygen amount, the optimal combination of oxygen amount and SOFA damper opening, and thermal state adjustment, the accurate adjustment and optimization of boiler combustion in thermal power plants can be realized to reduce nitrogen oxide emissions.

Description

technical field [0001] The invention relates to the technical field of thermal power plants, in particular to a combustion adjustment and optimization method and system for boilers in thermal power plants. Background technique [0002] A thermal power plant is a factory that uses coal, oil, and natural gas as fuel to produce electric energy. Its basic production process is: the fuel is burned in a boiler to heat water to make steam, and the chemical energy of the fuel is converted into heat energy. The steam pressure drives the steam turbine to rotate. The thermal energy is converted into mechanical energy, and then the steam turbine turns the generator, which converts the mechanical energy into electrical energy. [0003] A modern thermal power plant is a large and complex factory that produces electricity and heat. It consists of the following five systems: ① fuel system, ② combustion system, ③ soda system, ④ electrical system, ⑤ control system. In the above system, 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): F23N5/00
Inventor 李德波曾庭华廖永进刘亚明徐齐胜陈磊
Owner ELECTRIC POWER RES INST OF GUANGDONG POWER GRID
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