JPH0473717U

JPH0473717U -

Info

Publication number: JPH0473717U
Application number: JP11126390U
Authority: JP
Priority date: 1990-10-23
Filing date: 1990-10-23
Publication date: 1992-06-29

Description

[Brief explanation of the drawing]

第１図及び第２図は本考案の実施例を示し、第
１図は断面図（ただし第２図のＡ−Ａ断面図）、
第２図は正面図である。第３図は本考案の実施例
に関連する実験結果を示すグラフ、第４図乃至第
６図は本考案の実施例の実験結果を示すグラフで
ある。１……バーナ本体、１ａ……バーナ本体の先端
円筒部、２……燃焼用空気供給路、３……ガスノ
ズル、４ａ，４ｂ……空気口、７……ガス燃料噴
出孔、１０……じやま板部、１１……ガス燃料供
給管、１２……小開口、１３……燃焼用空気、１
４……ガス燃料、Ｐ……ノズル中心。 Figures 1 and 2 show an embodiment of the present invention, with Figure 1 being a sectional view (however, AA sectional view in Figure 2);
FIG. 2 is a front view. FIG. 3 is a graph showing the experimental results related to the embodiment of the present invention, and FIGS. 4 to 6 are graphs showing the experimental results of the embodiment of the present invention. DESCRIPTION OF SYMBOLS 1...Burner body, 1a...Tip cylindrical part of burner body, 2...Combustion air supply path, 3...Gas nozzle, 4a, 4b...Air port, 7...Gas fuel injection hole, 10...Ji Corner board part, 11... Gas fuel supply pipe, 12... Small opening, 13... Combustion air, 1
4...Gas fuel, P...Nozzle center.

Claims

[Claims for Utility Model Registration] 1. A plurality of gas fuel injection holes 7 are arranged at equal intervals in the circumferential direction of the gas nozzle at the tip of the gas nozzle 3 whose end face is closed, and at right angles to the center P of the nozzle. The combustion air 1 is formed around the gas nozzle 3 so that the gas fuel 14 is ejected in a direction.
A gas burner having air ports 4a and 4b located on the inner side and the outermost side for supplying the gas,
Among the air ports 4a and 4b, there are a large number of air ports 4a located on the inner side, and these 4a are distributed in the form of small holes between the gas nozzle 3 and the outermost air port 4b, and the air ports 4a are located on the outermost side. The low NOx gas burner has a plurality of air ports 4b, and these air ports 4b are arranged annularly in the circumferential direction of the nozzle at equal intervals. 2. The low-N fuel cell according to claim 1, wherein the number of gas fuel injection holes 7 and the air ports 4b located at the outermost side are the same number.
Ox gas burner. 3. The low NOx gas burner according to claim 2, wherein the gas fuel injection hole 7 and the outermost air port 4b are arranged relative to each other in the same phase in the nozzle circumferential direction. 4. The low NOx gas burner according to claim 2, wherein the gas fuel injection hole 7 and the air port 4b located at the outermost side are arranged relative to each other in the nozzle circumferential direction in an intermediate phase or an opposite phase. 5. The low NOx system according to claim 1, wherein the number of gas fuel injection holes 7 and the outermost air ports 4b are different.
gas burner. 6 Among the air ports 4a and 4b, the total area _S1 of the small hole-shaped air port 4a of the air port 4a located on the inner side, and the total area S of the air port 4b located on the outermost side.
_2. The low NOx gas burner according to claim 1, wherein the ratio S ₁ /S ₂ of 2 is in the range of 7.5/92.5 to 30/70.