Title:
POWDER FUEL BURNER
Document Type and Number:
WIPO Patent Application WO/2023/204103
Kind Code:
A1
Abstract:
This powder fuel burner is installed in a combustion chamber of a boiler, the powder fuel burner comprising: a cylindrical air-fuel mixture transport pipe to which an air-fuel mixture of powder fuel and transport air is transported, the air-fuel mixture transport pipe jetting the air-fuel mixture into the combustion chamber from a distal end; swirl vanes installed at the distal end of the air-fuel mixture transport pipe; a rod-form central flow-blocking portion installed on a central axis of the air-fuel mixture transport pipe at a location further upstream than the swirl vanes in the transport direction of the air-fuel mixture, the central flow-blocking portion having a cylindrical surface extending concentrically with the air-fuel mixture transport pipe in the central-axis direction; and a tubular peripheral flow-blocking portion installed along the inner wall surface of the air-fuel mixture transport pipe between the central flow-blocking portion and the swirl vanes, the peripheral flow-blocking portion having a cylindrical inner circumferential surface extending concentrically with the air-fuel mixture transport pipe in the central-axis direction.
Inventors:
MUTOH SADAYUKI
YABARA SUGURU
NIWA AKIHIRO
YABARA SUGURU
NIWA AKIHIRO
Application Number:
PCT/JP2023/014715
Publication Date:
October 26, 2023
Filing Date:
April 11, 2023
Export Citation:
Assignee:
KAWASAKI HEAVY IND LTD (JP)
International Classes:
F23C1/06; F23D1/02
Domestic Patent References:
| WO2017141551A1 | 2017-08-24 |
Foreign References:
| CN106051759A | 2016-10-26 | |||
| JPS59195314U | 1984-12-25 | |||
| JPH08110014A | 1996-04-30 | |||
| JP2014001908A | 2014-01-09 | |||
| CN104566357A | 2015-04-29 |
Attorney, Agent or Firm:
ARCO PATENT & TRADEMARK ATTORNEYS (JP)
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