JPS6264764U - - Google Patents
Info
- Publication number
- JPS6264764U JPS6264764U JP15644685U JP15644685U JPS6264764U JP S6264764 U JPS6264764 U JP S6264764U JP 15644685 U JP15644685 U JP 15644685U JP 15644685 U JP15644685 U JP 15644685U JP S6264764 U JPS6264764 U JP S6264764U
- Authority
- JP
- Japan
- Prior art keywords
- air
- furnace
- burner
- fuel ratio
- amount
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000446 fuel Substances 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000002485 combustion reaction Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 3
- 239000002912 waste gas Substances 0.000 claims description 2
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 claims 3
- 239000007789 gas Substances 0.000 description 3
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
Landscapes
- Regulation And Control Of Combustion (AREA)
- Control Of Heat Treatment Processes (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Description
第１図はこの考案の加熱炉の一実施例にかかる
断面図、第２図は空燃比μとＮＯＸとの関係を示
すグラフ、第３図は燃焼量とＮＯＸとの関係を示
すグラフ、第４図は燃焼量に対して設定すべき空
燃比μの上限および下限を示すグラフ、第５図は
従来の加熱炉の断面図である。
２０……加熱炉、２１……炉体、２２……バー
ナ、２３……廃ガス出口、２４……ガス流量制御
弁、２５……ガス流量計、２６……空気流量制御
弁、２７……空気流量計、２８……ふく射管、２
９……被加熱物、３０……温度検出制御器、３１
……ガス流量調節器、３２……空燃比設定制御器
、３３……空気流量調節器、３４……ＮＯＸ検出
計。
FIG. 1 is a cross-sectional view of an embodiment of the heating furnace of this invention, FIG. 2 is a graph showing the relationship between the air-fuel ratio μ and NOX, and FIG. 3 is a graph showing the relationship between combustion amount and NOX. FIG. 4 is a graph showing the upper and lower limits of the air-fuel ratio μ to be set for the combustion amount, and FIG. 5 is a sectional view of a conventional heating furnace. 20... Heating furnace, 21... Furnace body, 22... Burner, 23... Waste gas outlet, 24... Gas flow rate control valve, 25... Gas flow meter, 26... Air flow rate control valve, 27... Air flow meter, 28... Injection tube, 2
9... Heated object, 30... Temperature detection controller, 31
...Gas flow rate regulator, 32...Air-fuel ratio setting controller, 33...Air flow rate regulator, 34...NOX detection meter.
Claims (1)
たふく射管を取付ける一方、炉内の燃焼廃ガス中
の窒素酸化物の量を検出するＮＯＸ検出計を設け
、このＮＯＸ検出計の検出信号によりバーナへの
燃料および空気の供給量を空気過剰率が０．８〜
２．０となる範囲で制御し得る空燃比制御器を設
けるとともに、バーナへの燃料供給量により予め
制御すべき空燃比の範囲を定める空燃比設定器を
設けたことを特徴とする加熱炉。 An irradiation tube with an open end that covers the fire is installed in the furnace in front of the burner, and a NOX detector is installed to detect the amount of nitrogen oxides in the combustion waste gas in the furnace, and the detection signal of this NOX detector is The amount of fuel and air supplied to the burner is adjusted to an excess air ratio of 0.8~
1. A heating furnace comprising: an air-fuel ratio controller capable of controlling the air-fuel ratio within a range of 2.0;
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15644685U JPH0437899Y2 (en) | 1985-10-15 | 1985-10-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15644685U JPH0437899Y2 (en) | 1985-10-15 | 1985-10-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6264764U true JPS6264764U (en) | 1987-04-22 |
| JPH0437899Y2 JPH0437899Y2 (en) | 1992-09-04 |
Family
ID=31078070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15644685U Expired JPH0437899Y2 (en) | 1985-10-15 | 1985-10-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0437899Y2 (en) |
-
1985
- 1985-10-15 JP JP15644685U patent/JPH0437899Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0437899Y2 (en) | 1992-09-04 |