JPH0343553B2 - - Google Patents
Info
- Publication number
- JPH0343553B2 JPH0343553B2 JP58247735A JP24773583A JPH0343553B2 JP H0343553 B2 JPH0343553 B2 JP H0343553B2 JP 58247735 A JP58247735 A JP 58247735A JP 24773583 A JP24773583 A JP 24773583A JP H0343553 B2 JPH0343553 B2 JP H0343553B2
- Authority
- JP
- Japan
- Prior art keywords
- furnace
- combustion
- air
- burner
- heating
- 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.)
- Expired - Lifetime
Links
- 238000002485 combustion reaction Methods 0.000 claims description 22
- 239000000446 fuel Substances 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Landscapes
- Air Supply (AREA)
- Feeding And Controlling Fuel (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
Description
【発明の詳細な説明】
この発明は鉄や鋼等の熱処理炉を効率よく加熱
すると共に炉内温度のより厳密な均一化と省エネ
化を図つた炉の加熱法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for heating a heat treatment furnace for iron, steel, etc., which efficiently heats the furnace, and achieves stricter uniformity of the temperature inside the furnace and energy saving.
バツチ式の加熱炉の場合、複数バーナーのオ
ン・オフ制御システムがより効果的に且つ均一的
に加熱するシステムとしてよく知られているが、
さらに省エネルギーを図るために第１図に示す如
く熱交換器を設置したものがある。第１図におい
て、１は加熱炉、２，……２はバーナー、３は燃
料供給管、４は空気供給路、５ａは熱交換器、６
はブロワーで、熱交換器５ａは炉の排気ガスによ
り燃焼空気を予熱する如く構成されている。７は
燃料電磁弁、８はエアー電磁弁、９は温度補正付
調節弁、１０は排ガス路である。しかしこのタイ
プのものにおいても炉の温度変化および燃焼量の
変化が大きい為、熱交換器の計画が困難となる。 In the case of batch-type heating furnaces, an on/off control system for multiple burners is well known as a system that heats more effectively and uniformly.
Furthermore, in order to save energy, some devices are equipped with a heat exchanger as shown in FIG. In FIG. 1, 1 is a heating furnace, 2,...2 is a burner, 3 is a fuel supply pipe, 4 is an air supply path, 5a is a heat exchanger, 6
is a blower, and the heat exchanger 5a is configured to preheat combustion air with the exhaust gas of the furnace. 7 is a fuel solenoid valve, 8 is an air solenoid valve, 9 is a control valve with temperature correction, and 10 is an exhaust gas path. However, even in this type of furnace, there are large changes in the temperature of the furnace and the amount of combustion, making it difficult to plan the heat exchanger.
また仮りに、熱交換器を計画したとしても、燃
焼空気の予熱温度が大きく変化する為、空気比が
乱れ燃焼制御が複雑となり、且つ制御機器の耐熱
性が要求され、そのうえ熱交換器以降の燃焼空気
配管の保温が必要となる為、熱交換器を設置して
もあまりメリツトがないのが現状であつた。 Even if a heat exchanger is planned, the preheating temperature of the combustion air will change significantly, which will disrupt the air ratio and complicate combustion control.Additionally, the control equipment will need to be heat resistant, and the Currently, there is not much merit in installing a heat exchanger because it is necessary to keep the combustion air piping warm.
この発明は、このような問題点を解決するため
なされたもので、第２図及び第３図に基いてこの
発明を説明するが、第１図と同一もしくはほぼ同
一のものには同一の符号をつけその説明を省略す
る。 This invention was made to solve such problems, and the invention will be explained based on FIGS. 2 and 3. Components that are the same or almost the same as those in FIG. and omit the explanation.
炉１に複数個のバーナー２，……２を配置し、
各バーナー２を予め定めた順序に従つてオン・オ
フ（着火・非着火）状態を繰返させ、炉１を加熱
する方法において、各バーナー２，……２にそれ
ぞれ独立的に設けた燃焼空気予熱用熱交換器５に
よつて予熱された燃焼空気を用いて、各バーナー
２の燃焼を最大の空気噴出量及び燃焼噴出量にお
ける定空気比または定空燃比燃焼を行うようにし
たものである。 A plurality of burners 2, ... 2 are arranged in the furnace 1,
A method of heating the furnace 1 by repeatedly turning on and off (ignition/non-ignition) states of each burner 2 according to a predetermined order, in which combustion air preheating is provided independently for each burner 2,...2. Combustion air preheated by the heat exchanger 5 is used to perform combustion in each burner 2 at a constant air ratio or a constant air-fuel ratio at the maximum air ejection amount and combustion ejection amount.
すなわち、この発明は、炉内左右の側壁に等間
隔にバーナーを配置し（但し、左右のバーナーは
順次食違わせて配置されている）、これらのバー
ナーはオン状態の燃焼中は最大の空気噴出量及び
燃焼噴出量における定空燃比燃焼を行うようにな
つており、またオフ状態においては空気も燃料も
いずれも噴出しないようになつている。また個々
のバーナーには燃焼空気予熱装置が内蔵（例えば
特開昭56−91111号公報参照）又は取付けられて
いる。このようにすると、炉内燃焼量の変化に関
係なくバーナー個々での燃焼空気の予熱が出来、
かつ燃焼空気を予熱しない場合と同様の燃焼制御
が出来る。また燃焼空気配管の保温も不要となる
特長がある。 That is, in this invention, burners are arranged at equal intervals on the left and right side walls of the furnace (however, the left and right burners are arranged in a staggered manner), and these burners are set to the maximum air flow during combustion when they are on. It is designed to perform combustion at a constant air-fuel ratio at a constant jetting amount and combustion jetting amount, and neither air nor fuel is jetted out in the off state. Further, each burner has a combustion air preheating device built-in (see, for example, Japanese Patent Application Laid-Open No. 56-91111) or attached thereto. In this way, the combustion air can be preheated in each burner regardless of changes in the amount of combustion in the furnace.
In addition, the same combustion control as in the case where the combustion air is not preheated can be performed. Another feature is that there is no need to insulate the combustion air piping.
第１図は従来の炉の平面図である。第２図は本
発明の炉の平面図、第３図は第２図の要部の拡大
図である。
１……炉、２……バーナー、３……燃料供給
管、４……空気供給路、５……熱交換器、６……
ブロワー、７……燃料電磁弁、８……エアー電磁
弁、９……温度補正付調節弁、１０……排ガス
路。
FIG. 1 is a plan view of a conventional furnace. FIG. 2 is a plan view of the furnace of the present invention, and FIG. 3 is an enlarged view of the main parts of FIG. 1...Furnace, 2...Burner, 3...Fuel supply pipe, 4...Air supply path, 5...Heat exchanger, 6...
Blower, 7...Fuel solenoid valve, 8...Air solenoid valve, 9...Control valve with temperature correction, 10...Exhaust gas path.
Claims (1)
を予め定めた順序に従つて着火・非着火状態を繰
り返させ炉を加熱する方法において、各バーナー
にそれぞれ独立的に設けた燃焼空気予熱装置によ
つて予熱された燃焼空気を用いて、各バーナーの
最大の空気噴出量及び燃焼噴出量における定空燃
比燃焼を行うことを特徴とする複数バーナーのオ
ン・オフによる炉の加熱法。1 In a method of heating a furnace by arranging multiple burners in a furnace and repeatedly igniting and non-igniting each burner in a predetermined order, a combustion air preheating device provided independently for each burner is used. A method of heating a furnace by turning on and off multiple burners, characterized by performing constant air-fuel ratio combustion at the maximum air ejection amount and combustion ejection amount of each burner using preheated combustion air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58247735A JPS60144591A (en) | 1983-12-31 | 1983-12-31 | Heating method of furnace by on-off of plurality of burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58247735A JPS60144591A (en) | 1983-12-31 | 1983-12-31 | Heating method of furnace by on-off of plurality of burner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60144591A JPS60144591A (en) | 1985-07-30 |
| JPH0343553B2 true JPH0343553B2 (en) | 1991-07-02 |
Family
ID=17167887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58247735A Granted JPS60144591A (en) | 1983-12-31 | 1983-12-31 | Heating method of furnace by on-off of plurality of burner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60144591A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100351673B1 (en) * | 1999-07-05 | 2002-09-10 | 한국과학기술원 | Apparatus for improvement of mixing and reaction in combustors |
-
1983
- 1983-12-31 JP JP58247735A patent/JPS60144591A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60144591A (en) | 1985-07-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |