A kind of ultra-low nitrogen combustion method of coal-fired generating set
A technology of generator set and combustion method, applied in the direction of combustion method, burner, combustion type, etc., can solve the problems of difficult engineering application, complex low-nitrogen combustion method, etc., and achieve the effect of safe work, good effect and strong applicability
Active Publication Date: 2020-04-28
NORTHEAST DIANLI UNIVERSITY +2
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] At present, it is difficult to achieve low NO with the low nitrogen combustion method of most coal-fired generating units x At the same time, higher requirements are put forward for boiler combustion coal, combustion process control, combustion load, etc. In addition, some low-nitrogen combustion methods are relatively complicated and difficult to achieve engineering applications
For the ultra-low nitrogen combustion of coal-fired generating units, there is no complete, effective and general method
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0030] The following combination Figure 1-Figure 4 The present invention will be further described in detail with specific examples, and the specific examples described here are only used to explain the present invention, and are not intended to limit the present invention.
[0031] refer to figure 1, an ultra-low-nitrogen combustion method for a coal-fired generator set in the present invention, a pulverized coal controllable high-temperature pre-pyrolysis device 34 is installed outside the boiler furnace 7, and the pulverized coal controllable high-temperature pre-pyrolysis device 34 includes: an igniter 1, Water spraying desuperheating steam 3, coal powder controllable high temperature pre-pyrolysis device fuel combustion body 2, pyrolysis wind powder gas-solid separation device 4. The pulverized coal and the primary air enter the pulverized coal controllable high-temperature pre-pyrolysis device 34 , and then enter the boiler furnace 7 through the pyrolysis air powder ga...
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
Login to View More Abstract
The invention relates to a ultra-low-nitrogen combustion method of a coal-fired power generating set. The ultra-low nitrogen combustion method is characterized by comprising the following steps that acoal-fired boiler coal powder controllable high-temperature pre-pyrolysis device is arranged; a pyrolysis air powder gas-solid separation device is arranged, a coal-fired boiler coal powder controllable high-temperature pre-pyrolysis temperature control system is arranged and a coal-fired boiler ultra-low nitrogen combustion control system is arranged; and the technical bottleneck that NOx emission of an existing coal-fired boiler cannot be greatly reduced is broken through, and stable, reliable and safe work of different coal types, different output forces and different working conditions can be met. The method is scientific and reasonable, strong in applicability and good in effect, the pollution of the coal-fired power generator set to the environment can be reduced, and the clean andefficient utilization of coal is realized.
Description
technical field [0001] The invention relates to a coal-fired generating set, and relates to an ultra-low-nitrogen combustion method for a coal-fired generating set. Background technique [0002] Coal resources are still the main energy source in the world today, and coal-fired power generation units will still occupy the main position in the power generation system for a long period of time in the future due to their advantages of controllability, stability and safety. The main problem brought by coal-fired power generation units is the emission of pollutants during the combustion process, the main pollutant of which is NO x . Coal-fired generator set NO x The amount of emissions depends to a large extent on the combustion method of the boiler, so coal-fired generating units urgently need to achieve ultra-low nitrogen combustion. [0003] At present, it is difficult to achieve low NO with the low nitrogen combustion method of most coal-fired generating units x At the sam...
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
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): F23D1/00
CPCF23D1/00
Inventor 唐宏邰召山韩晓菊王迪曹生现刘玉秋李晓明沈学强刘坐东姜文娟徐志明
Owner NORTHEAST DIANLI UNIVERSITY