Title:
【発明の名称】バ―ナ―
Document Type and Number:
Japanese Patent JP2544662
Kind Code:
B2
Abstract:
A pulverised fuel and air mixture is burnt in conditions giving relatively low NOx emissions by using a burner which has concentric passages (30,32,34) for a primary air-fuel mixture and secondary and ternary air flows respectively. In the passage (30) for the primary air-fuel mixture guide elements (48) are provided at angularly spaced positions. The elements (48) are arranged to deflect the flow in the passage (30) and so produce regions of high fuel concentration. Downstream of the guide elements and adjacent the outlet (38) of the passage (30), flow disturbing members (50) are provided in angularly spaced positions to modify the flow pattern of the air-fuel mixture at the passage outlet. The members (50) assist stabilisation of the flame front at the burner outlet and complement the action of the guide elements (48) in promoting combustion conditions that lead to low NOx emissions.
Inventors:
JEFURII UIRIAMU AREN
PIITAA RICHAADOSON BIIRU
DENISU ROI UINFURII
PIITAA RICHAADOSON BIIRU
DENISU ROI UINFURII
Application Number:
JP5183889A
Publication Date:
October 16, 1996
Filing Date:
March 03, 1989
Export Citation:
Assignee:
NORTHERN ENG IND
International Classes:
F23C99/00; F23D1/00; (IPC1-7): F23D1/00; F23C11/00
Domestic Patent References:
| JP61184309A | ||||
| JP6234090A |
Attorney, Agent or Firm:
Masaki Yamakawa (3 outside)