| 发明名称 |
COMBUSTION BURNER FOR BOILER |
| 摘要 |
A combustion burner for a boiler includes: an inner cylinder forming a fuel supply passage for supplying the fuel; an outer cylinder disposed so as to surround the inner cylinder and to form an air supply passage between the inner cylinder and the outer cylinder; and a swirler disposed in the air supply passage and configured to swirl the air flowing through the air supply passage. The swirler includes a plurality of blades radially disposed between the inner cylinder and the outer cylinder, the blades extending from an air-supply side toward a combustion-space side of the air supply passage, and each of the plurality of blades has, at least on an inner-cylinder side of the blade, a section with a thickness varied in a burner axial direction, the thickness being smaller at an edge portion on the combustion-space side than at a maximum-thickness section of the blade. |
| 申请公布号 |
US2016252246(A1) |
申请公布日期 |
2016.09.01 |
| 申请号 |
US201415028793 |
申请日期 |
2014.03.11 |
| 申请人 |
MITSUBISHI HITACHI POWER SYSTEMS, LTD. |
发明人 |
ARAKAWA Yoshiaki;HASHIGUCHI Kazuaki;TAKENO Keiji;YUASA Atsushi;JOJIMA Takahiro;OGAWA Hideta;SAWA Shogo |
| 分类号 |
F23D14/24;F23C7/00;F23R3/14;F23D11/24 |
主分类号 |
F23D14/24 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A combustion burner comprising:
an inner cylinder forming, at a radially-inner side, a fuel supply passage for supplying the fuel; an outer cylinder disposed so as to surround the inner cylinder and to form an air supply passage between the inner cylinder and the outer cylinder; and a swirler disposed in the air supply passage and configured to swirl the air flowing through the air supply passage, wherein the swirler includes a plurality of blades radially disposed between the inner cylinder and the outer cylinder, the blades extending from an air-supply side toward a combustion-space side of the air supply passage, wherein each of the plurality of blades has, at least on an inner-cylinder side, a cutout portion cut out in a burner axial direction, the cutout portion being disposed on an edge portion on the combustion-space side, and wherein each of the plurality of blades has, at least on the inner-cylinder side of the blade, a section with a thickness varied in the burner axial direction, the thickness being smaller at the portion on the combustion-space side including the cutout portion than at a maximum-thickness section of the blade. |
| 地址 |
Kanagawa JP |
