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Combining Fuel Rich/Lean Burner With the Small Heavy Oil Gun Ignition Techniques Makes Pulverized Coal-Fired Boiler More Efficient

[+] Author Affiliations
Guiyuan Mo, Hao Zhou, Kunzan Qiu, Kefa Cen

Zhejiang University, Hangzhou, Zhejiang, China

Feng Chen, Hong Yin

Guangdong Yuehua Power Co. Ltd., Guangzhou, Guangdong, China

Paper No. POWER2011-55472, pp. 277-279; 3 pages
doi:10.1115/POWER2011-55472
From:
  • ASME 2011 Power Conference collocated with JSME ICOPE 2011
  • ASME 2011 Power Conference, Volume 1
  • Denver, Colorado, USA, July 12–14, 2011
  • ISBN: 978-0-7918-4459-5
  • Copyright © 2011 by ASME

abstract

The coal qualities changes very frequently in China, to make the flame stability under different operating conditions is difficult and it is important to prevent the furnace from the serious slagging while the coals with low ash fusion temperature are combusted, at the same time, the utility units now face the frequent load changing, how to save the oil at the low load or during the start up period becomes a very serious problem. In this work, the burner combing the fuel rich/lean separator and the small heavy oil gun ignition techniques were developed and then employed in a utility boiler. The detailed design of such a novel burner is introduced in this paper. Such a burner can achieve a 50% rated load and 70% heavy oil can be saved.

Copyright © 2011 by ASME
Topics: Fuels , Boilers , Coal , Ignition

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