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Title:
BURNER DEVICE
Document Type and Number:
Japanese Patent JP2013155917
Kind Code:
A
Abstract:

To provide a burner device capable of reducing an NOx concentration by a simple structure.

A burner device includes a primary air passage 4 disposed in a cylindrical sleeve 2, a first fuel nozzle 11 disposed in a burner central axis of the primary air passage 4, a fan-shape flame stabilizer 12 disposed around the first fuel nozzle 11, a second fuel nozzle 14 which is disposed around the flame stabilizer 12 and projected from tips of the first fuel nozzle 11 and the flame stabilizer 12 to a furnace side, a guide sleeve 15 which is formed in a fan shape so as to extend from an outlet of the primary air passage 4 to a furnace 26 and of which the tip is in a throat 1, a secondary air passage 5 at an outer periphery of the cylindrical sleeve 2, and a secondary air outlet 5a formed of a fan-shape portion 1a formed at the throat 1 of the secondary air passage 5 and the guide sleeve 15. The guide sleeve 15 and the fan-shape portion 1a of the throat 1 enhance the separation of the primary air and secondary air supplied to the furnace 26. This reduces the NOx concentration by a simple structure.


Inventors:
Tsukada, Norihiro
Iwase, Tetsuya
Tsumura, Shunichi
Makikawa, Yoshinori
Nagashima, Jun
Takasugi, Hitoshi
Kamuragi, Yutaka
Kitahata, Susumu
Kinoshita, Naoki
Application Number:
JP2012000016520
Publication Date:
August 15, 2013
Filing Date:
January 30, 2012
Export Citation:
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Assignee:
BAB-HITACHI INDUSTRIAL CO
International Classes:
F23C6/04; F23D14/22; F23D17/00; F23L1/00
Domestic Patent References:
JP2001280604A2001-10-10
JP2005233483A2005-09-02
JP2001355832A2001-12-26
JPS61101226U1986-06-27
JP2002061835A2002-02-28
JPS6226413A1987-02-04
JPS5731711A1982-02-20
JPS62172105A1987-07-29
JPH0410228U1992-01-29
JPH06265118A1994-09-20
JPS63210508A1988-09-01
JP2010071575A2010-04-02
JP2000356307A2000-12-26
JP2002115810A2002-04-19
JP2004239608A2004-08-26
JPH0688609A1994-03-29
Foreign References:
US6089170A2000-07-18
EP0945678A21999-09-29
Attorney, Agent or Firm:
松永 孝義
飯塚 向日子