COMBUSTION BURNER AND BOILER - MITSUBISHI HITACHI POWER SYS

Title:

COMBUSTION BURNER AND BOILER

Document Type and Number:

WIPO Patent Application WO/2016/031540

Kind Code:

A1

Abstract:

　A combustion burner and boiler, which are provided with an air nozzle (41) for spraying air, a first fuel nozzle (42) for spraying a gas fuel on the outside of the air nozzle (41), a primary air nozzle (43) for spraying primary air on the outside of the first fuel nozzle (42), a secondary air nozzle (44) for spraying secondary air on the outside of the primary air nozzle (43), a recirculated exhaust gas nozzle (45) for spraying recirculated exhaust gas on the outside of the secondary air nozzle (44), and a second fuel nozzle (46) for spraying a gas fuel onto the passage (45a) of the recirculated exhaust gas nozzle (45), whereby the mixture ratio of the liquid fuel and air is brought to an optimal ratio, the amount of NOx generated is reduced, and heat damage to the nozzle tip section is prevented.

More Like This:

JP2000035206	MANUFACTURE OF BURNER AND INJECTOR
WO/2002/081967	COMBUSTION METHOD COMPRISING SEPARATE INJECTIONS OF FUEL AND OXIDANT AND BURNER ASSEMBLY THEREFOR

Inventors:

OKAMOTO AKIYASU (JP)
HASHIGUCHI KAZUAKI (JP)
OHURA KOJI (JP)
NAKASHIMA FUMIHIRO (JP)
FUJII HIROSHI (JP)

Application Number:

PCT/JP2015/072618

Publication Date:

March 03, 2016

Filing Date:

August 10, 2015

Export Citation:

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Assignee:

MITSUBISHI HITACHI POWER SYS (JP)

International Classes:

F23D14/22; F23C99/00; F23L7/00

Foreign References:

JPS5056228U	1975-05-27
JPH06123411A	1994-05-06
JPS5178953U	1976-06-22
JPS598009U	1984-01-19