Analysis of Primary Air Fan Run-Back in 1000MW Ultra Supercritical Coal Fired Generation Unit

Author

Yin, Libao ; Xu, Qisheng ; Wen, Zhiyong ; Song, Jinghui ; Xia, Ruiqing ; Zhou, Liming

Author_Institution

Electr. Power Res. Inst., Guangdong Power Grid Corp., Guangzhou, China

fYear

2012

fDate

27-29 March 2012

Firstpage

1

Lastpage

4

Abstract

In this paper, it takes the 1000MW ultra supercritical coal-fired unit as the research object and describes the runback process of primary air fan. With the curve, some mainly processes including the amount of fuel, hot primary air pressure of the header, inlet air pressure of each mill, negative pressure of furnace, superheat degree of middle point and feed-water flow were analyzed. The coal-water ratio of primary air fan can provide reference for dealing with the analogic accident by the similar unit. At the same time, some valuable datas can be used during the coal pulverizing system of large electric generation unit.

Keywords

steam power stations; analogic accident; coal pulverizing system; coal-water ratio; feed-water flow; fuel amount; furnace; hot primary air pressure; inlet air pressure; large electric generation unit; middle point; negative pressure; power 1000 MW; primary air fan run-back; research object; runback process; superheat degree; ultra supercritical coal fired generation unit; Boilers; Coal; Educational institutions; Furnaces; Power generation; Power systems;

fLanguage

English

Publisher

ieee

Conference_Titel

Power and Energy Engineering Conference (APPEEC), 2012 Asia-Pacific

Conference_Location

Shanghai

ISSN

2157-4839

Print_ISBN

978-1-4577-0545-8

Type

conf

DOI

10.1109/APPEEC.2012.6306932

Filename

6306932