JPH087214Y2 - Radiant tube burner - Google Patents
Radiant tube burnerInfo
- Publication number
- JPH087214Y2 JPH087214Y2 JP11210290U JP11210290U JPH087214Y2 JP H087214 Y2 JPH087214 Y2 JP H087214Y2 JP 11210290 U JP11210290 U JP 11210290U JP 11210290 U JP11210290 U JP 11210290U JP H087214 Y2 JPH087214 Y2 JP H087214Y2
- Authority
- JP
- Japan
- Prior art keywords
- radiant tube
- ceramic
- tube burner
- mixing controller
- tip
- 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
Landscapes
- Gas Burners (AREA)
Description
【考案の詳細な説明】 ［産業上の利用分野］ 本考案はラジアントチューブバーナに関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a radiant tube burner.
［従来の技術］ 鉄鋼製品（管、厚板、帯鋼）の還元雰囲気熱処理炉に
おいては間接加熱としてラジアントチューブ炉が用いら
れている。[Prior Art] A radiant tube furnace is used as indirect heating in a reducing atmosphere heat treatment furnace for steel products (tubes, plates, strips).
このラジアントチューブ炉では口径が100〜250mm、長
さが２〜6mの耐熱鋼管の内部で燃焼を行うため、狭い空
間で高温となるのでNOxの発生が多く、このため低NOxバ
ーナが種々考案されている。その中で、最も多く用いら
れているのは多段燃焼といわれる方法である。In this radiant tube furnace, since combustion occurs inside a heat-resistant steel pipe with a diameter of 100 to 250 mm and a length of 2 to 6 m, NOx is often generated because it becomes hot in a narrow space, so various low NOx burners have been devised. ing. Among them, the method most often used is a method called multi-stage combustion.
第３図、第４図に、その代表例を示す。燃料ガス１と
燃焼用空気２の混合を段階的に行わせるため、ガスノズ
ル３の先端には円筒状や円板状の混合制御器４を必ず有
している。この混合制御器４は高温のため溶損や変形し
易く取り替え頻度が多い。本考案は混合制御器４の材質
をセラミックにして溶損、変形を防止しようとするもの
である。尚、セラミック筒体をパイロットバーナの先端
に設けた実開昭62-107259号公報が知られているが、セ
ラミックと金属との結合が不充分であった。Typical examples are shown in FIG. 3 and FIG. In order to mix the fuel gas 1 and the combustion air 2 in stages, the gas nozzle 3 always has a cylindrical or disk-shaped mixing controller 4. Since this mixing controller 4 is at a high temperature, it is easily melted or deformed and frequently replaced. In the present invention, the material of the mixing controller 4 is made of ceramic to prevent melting damage and deformation. Incidentally, there is known Japanese Utility Model Laid-Open No. 62-107259 in which a ceramic cylinder is provided at the tip of a pilot burner, but the coupling between ceramic and metal was insufficient.
［考案が解決しようとする課題］ 従来、混合制御器は耐熱金属製であったために高温の
ために溶損、変形が生じやすい問題があり、本考案はそ
の問題点を有利に解決するものである。[Problems to be Solved by the Invention] Conventionally, since the mixing controller is made of heat-resistant metal, there is a problem that melting loss and deformation are likely to occur due to high temperature. The present invention advantageously solves the problem. is there.
［課題を解決するための手段］ 本考案の要旨はガスノズルの先端部で燃料ガスと燃焼
ガスの混合を行わせる混合制御器を有するラジアントチ
ューブバーナにおいて、先端ガスノズルはセラミック製
で、結合ボルトとしての機能を併せ有する形状であり、
金属製の燃料ガス管とセラミック製の混合制御器とを、
該セラミック製の先端ガスノズルが有する結合ボルトと
しての機能で結合してなるラジアントチューブバーナで
ある。[Means for Solving the Problems] The gist of the present invention is a radiant tube burner having a mixing controller that mixes fuel gas and combustion gas at the tip of a gas nozzle. The tip gas nozzle is made of ceramic and is used as a connecting bolt. It is a shape that also has functions,
Metal fuel gas pipe and ceramic mixing controller,
It is a radiant tube burner that is connected by a function as a connecting bolt of the ceramic tip gas nozzle.
即ち、本考案は溶損、変形が生じやすい混合制御器を
セラミック製とすると共に、セラミック製にしたが故の
混合制御器と燃料ガス管との結合を先端ガスノズルの結
合ボルト機能を用いて、従来の結合ボルト自体の高温で
の溶損を解消するものである。That is, in the present invention, the mixing controller which is liable to be melted and deformed is made of ceramic and the mixing controller and the fuel gas pipe, which are made of ceramic, are connected by using the connecting bolt function of the tip gas nozzle. This is to eliminate melting damage of the conventional coupling bolt itself at high temperature.
本考案の混合制御器及び先端ガスノズル（結合ボル
ト）に用いるセラミックは炭化珪素質、窒化珪素質、サ
イアロン質、アルミナ質、ジルコニア質等が有利であ
る。Ceramics used for the mixing controller and the tip gas nozzle (coupling bolt) of the present invention are preferably silicon carbide, silicon nitride, sialon, alumina, zirconia, or the like.
次に本考案の実施例を第１図、第２図を用いて説明す
る。Next, an embodiment of the present invention will be described with reference to FIGS.
本考案のラジアントチューブバーナは先端ガスノズル
５をセラミック製で、かつ結合ボルト機能を有する形状
とし、金属製の燃料ガス管６とセラミック製の混合制御
器４を該結合ボルト（先端ガスノズル）５で結合するよ
うにしたものである。In the radiant tube burner of the present invention, the tip gas nozzle 5 is made of ceramic and has a coupling bolt function, and the metal fuel gas pipe 6 and the ceramic mixing controller 4 are coupled by the coupling bolt (tip gas nozzle) 5. It is something that is done.
即ち、金属製の燃料ガス管６側には雌ネジ７を設け、
結合ボルト５側には雄ネジ８を設け、混合制御器４の開
孔部に結合ボルト５を通してボルト結合することにより
混合制御器４を燃料ガス管６に結合する。その時、結合
ボルト５の凸部９で混合制御器４を押し付けて、該混合
制御器４を燃料ガス管６に結合するようにしたものであ
る。That is, the female screw 7 is provided on the metal fuel gas pipe 6 side,
A male screw 8 is provided on the coupling bolt 5 side, and the mixing controller 4 is coupled to the fuel gas pipe 6 by bolting the coupling bolt 5 through the opening of the mixing controller 4. At that time, the mixing controller 4 is pressed by the convex portion 9 of the coupling bolt 5 to couple the mixing controller 4 to the fuel gas pipe 6.
尚、結合ボルトは中空となっており、結合ボルトの機
能と先端ガスノズルの機能の双方の機能を具備している
ものである。The connecting bolt is hollow and has both the function of the connecting bolt and the function of the tip gas nozzle.
［考案の効果］ 本考案によれば、混合制御器をセラミックにすること
で溶損、変形を防止すると共に、混合制御器と燃料ガス
管との結合をセラミック製の結合ボルトでおこないラジ
アントチューブバーナの寿命の延長を図り、その効果は
極めて大きいものである。[Advantages of the Invention] According to the present invention, the mixing controller is made of ceramic to prevent melting damage and deformation, and the mixing controller and the fuel gas pipe are coupled by a ceramic coupling bolt. The life is extended, and the effect is extremely large.
第１図は本考案のラジアントチューブバーナの例の説明
図、 第２図は本考案のラジアントチューブバーナの他の例の
説明図、 第３図は従来のラジアントチューブバーナの例の説明
図、 第４図は従来のラジアントチューブバーナの他の例の説
明図、 である。 1:燃料ガス、２……燃焼用空気、3:ガスノズル、4:混合
制御器、5:結合ボルト（先端ガスノズル）、6:燃料ガス
管、7:雌ネジ、8:雄ネジ、9:凸部。FIG. 1 is an explanatory view of an example of a radiant tube burner of the present invention, FIG. 2 is an explanatory view of another example of a radiant tube burner of the present invention, and FIG. 3 is an explanatory view of an example of a conventional radiant tube burner. FIG. 4 is an explanatory view of another example of the conventional radiant tube burner. 1: Fuel gas, 2 ... Combustion air, 3: Gas nozzle, 4: Mixing controller, 5: Coupling bolt (tip gas nozzle), 6: Fuel gas pipe, 7: Female screw, 8: Male screw, 9: Convex Department.
Claims (1)
の混合を行わせる混合制御器を有するラジアントチュー
ブバーナにおいて、先端ガスノズルは結合ボルト機能を
併せ有する形状のセラミック製で、金属製の燃料ガス管
とセラミック製の混合制御器を、該セラミック製の先端
ガスノズルで結合してなるラジアントチューブバーナ。1. A radiant tube burner having a mixing controller for mixing a fuel gas and a combustion gas at the tip of a gas nozzle, wherein the tip gas nozzle is made of ceramic and has a shape that also serves as a connecting bolt. A radiant tube burner in which a tube and a ceramic mixing controller are connected by a ceramic tip gas nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11210290U JPH087214Y2 (en) | 1990-10-29 | 1990-10-29 | Radiant tube burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11210290U JPH087214Y2 (en) | 1990-10-29 | 1990-10-29 | Radiant tube burner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0473715U JPH0473715U (en) | 1992-06-29 |
| JPH087214Y2 true JPH087214Y2 (en) | 1996-03-04 |
Family
ID=31859603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11210290U Expired - Lifetime JPH087214Y2 (en) | 1990-10-29 | 1990-10-29 | Radiant tube burner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH087214Y2 (en) |
-
1990
- 1990-10-29 JP JP11210290U patent/JPH087214Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0473715U (en) | 1992-06-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| EXPY | Cancellation because of completion of term |