JPH02100008U

JPH02100008U -

Info

Publication number: JPH02100008U
Application number: JP392389U
Authority: JP
Priority date: 1989-01-19
Filing date: 1989-01-19
Publication date: 1990-08-09

Description

[Brief explanation of the drawing]

第１図〜第３図は本考案の低ＮＯｘ小型バーナ
の一実施例を示すもので、第１図は全体の外観を
示す斜視図、第２図は第１図の―線断面図、
第３図は第１図の―線断面図である。第４図
は本考案のバーナと従来バーナとの燃焼性能を比
較したグラフで、Ａは燃焼排ガス中の残留酸素量
とＯ_２４％換算のＮＯｘ量との関係を示すグラフ
、Ｂは燃焼排ガス中の残留酸素量と火炎長さとの
関係を示すグラフ、Ｃは燃焼排ガス中の残留酸素
量とバツカラ指数との関係を示すグラフである。１…燃焼筒、２…燃焼筒内の燃料ノズル、３…
燃焼筒外の燃料ノズル、４…燃焼内空気供給系、
５…燃料供給系。 Figures 1 to 3 show an embodiment of the low NOx small burner of the present invention. Figure 1 is a perspective view showing the overall appearance, Figure 2 is a sectional view taken along the line - - in Figure 1,
FIG. 3 is a sectional view taken along the line -- in FIG. Figure 4 is a graph comparing the combustion performance of the burner of the present invention and a conventional burner, where A is a graph showing the relationship between the amount of residual oxygen in the combustion exhaust gas and the amount of NOx converted to O ₂ 4%, and B is the graph showing the relationship between the amount of NOx in the combustion exhaust gas. C is a graph showing the relationship between the amount of residual oxygen in the combustion exhaust gas and the flame length. 1... Combustion tube, 2... Fuel nozzle in the combustion tube, 3...
Fuel nozzle outside the combustion cylinder, 4...Internal combustion air supply system,
5...Fuel supply system.

Claims

[Scope of utility model registration request]

one fuel injection nozzle is installed in the combustion tube, and one or more fuel injection nozzles are installed outside the combustion tube and on the downstream side of the combustion tube,
While the fuel can be divided and supplied to the nozzle inside the combustion cylinder and the nozzle outside the combustion cylinder, the combustion air is provided to supply the entire amount of combustion air with an appropriate air ratio to the combustion cylinder, and at the time of high combustion, the combustion air inside the combustion cylinder is 40-50 from the nozzle
60 to 5% of the fuel by volume from the nozzle outside the combustion cylinder.
A low NOx burner characterized by injecting 0% by volume of fuel and injecting fuel only from a nozzle in a combustion cylinder during low combustion.