JPS60216111A - Heating apparatus of combustion type - Google Patents
Heating apparatus of combustion typeInfo
- Publication number
- JPS60216111A JPS60216111A JP7316984A JP7316984A JPS60216111A JP S60216111 A JPS60216111 A JP S60216111A JP 7316984 A JP7316984 A JP 7316984A JP 7316984 A JP7316984 A JP 7316984A JP S60216111 A JPS60216111 A JP S60216111A
- Authority
- JP
- Japan
- Prior art keywords
- burner
- heated
- electrode needle
- electrode
- needle
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C99/00—Subject-matter not provided for in other groups of this subclass
- F23C99/001—Applying electric means or magnetism to combustion
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Gas Burners (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、ブンゼンバーナや溶断・ろう肘用バーナ等、
主に金属製被加熱物の局部を集中的に加熱する燃焼式加
熱装置に関する。[Detailed Description of the Invention] The present invention provides a Bunsen burner, a burner for melting/brazing elbow, etc.
The present invention mainly relates to a combustion type heating device that intensively heats a local part of a metal object to be heated.
従来、火炎に電場を付与するとその燃焼状態や被加熱物
に対する伝熱状態に影響があるということは広く知られ
ていたが、上記の如き燃焼式加熱装置において単に電場
を付与しても電場特性や電極構造等の条件によシ、被加
熱物に対する伝熱効率がかえって低下してしまう場合も
あシ、電場を有効に利用して伝熱効率を効果的に向上さ
せる技術は未だ確立されていなかった。Conventionally, it has been widely known that applying an electric field to a flame has an effect on its combustion state and heat transfer state to the heated object, but in combustion heating devices such as those mentioned above, simply applying an electric field does not affect the electric field characteristics. In some cases, the heat transfer efficiency to the object to be heated may actually decrease depending on conditions such as the electric field and the electrode structure, and the technology to effectively improve the heat transfer efficiency by effectively utilizing the electric field has not yet been established. .
本発明の目的は、長年の研究結果に基づいた合理的な電
場付与構成によシ、特に局部を集中加熱する場合のバー
ナから被加熱物局部に対する伝熱効率を効果的に向上す
る点にある。An object of the present invention is to effectively improve heat transfer efficiency from a burner to a local part of an object to be heated, particularly in the case of concentrated heating of a local part, by using a rational electric field application configuration based on the results of many years of research.
本発明による燃焼式加熱装置の特徴構成は、バーナのガ
ス噴出口のほぼ中央に電極針を設け、その電極針と金属
製被加熱物との間にjKV以上の電位差を付与する直流
電源装置を、その負電極が前記電極針に接続された状態
で設けであることにあシ、その作用・効果は次の通シで
ある。The characteristic configuration of the combustion type heating device according to the present invention is that an electrode needle is provided almost at the center of the gas jet port of the burner, and a DC power supply device is provided that applies a potential difference of jKV or more between the electrode needle and the metal object to be heated. , the negative electrode is provided in a state connected to the electrode needle, and its functions and effects are as follows.
実験結果(第4図及び第5図参照)から説明すると、
′第4図は、ブンゼンバーナ(3)のガス噴出口(8a
)のほぼ中央に設けた電極針(5)に直流電源で−/
OKVの電位を付加し、かつ、バーナ(3)の上方に配
置した金属製被加熱物(鉄板)(6)をアースした状態
で、バーナ(3)の燃焼火炎により被加熱物(6)を加
熱した実験例、及び、実験結果を示す。To explain from the experimental results (see Figures 4 and 5), 'Figure 4 shows the gas outlet (8a) of the Bunsen burner (3).
) -/
With the OKV potential applied and the metal heated object (iron plate) (6) placed above the burner (3) grounded, the heated object (6) is heated by the combustion flame of the burner (3). Examples of heating experiments and experimental results are shown.
但し、使用燃料ガス : /JA(低圧)供給熱に:/
YθθKcal/H
空気比:θ、1/
又、図及びグラフの右半部は電極針に電位を付加しない
場合を示し、左半部が電位を付加した場合を示し、図中
の火炎部分に記入した等連線、及び、数字は火炎の速度
分布を表わす。However, the fuel gas used: /JA (low pressure) for supplying heat: /
YθθKcal/H Air ratio: θ, 1/ In addition, the right half of the diagram and graph shows the case where no potential is applied to the electrode needle, and the left half shows the case where the potential is applied. Fill in the flame part in the diagram. The isotonic lines and numbers represent the flame velocity distribution.
実験結果を示すグラフの縦軸は、被加熱物(6)が取得
した熱量、すなわち伝熱量(×/θ4KCa〜、5)を
表し、横軸は電極針(6)の縦中心軸芯(P)からの半
径方向への距離(膿)を表わす。The vertical axis of the graph showing the experimental results represents the amount of heat acquired by the heated object (6), that is, the amount of heat transfer (x/θ4KCa~, 5), and the horizontal axis represents the vertical center axis (P) of the electrode needle (6). ) represents the radial distance (pus) from
上記実験の結果、電極針(5)に電位を付加した時の方
が無付加の場合に比して、電極針(5)の縦中心軸芯(
P)周シの図中斜線部で火炎の流速が増速しており、そ
れに伴ない、伝熱量が、縦中心軸芯(P)からの距離が
o −y o mm0間で電位無付加の場合よりも増大
している。As a result of the above experiment, it was found that when a potential was applied to the electrode needle (5), the vertical center axis of the electrode needle (5) (
P) The flow velocity of the flame increases in the shaded area in the diagram of the circumference, and as a result, the amount of heat transfer increases when the distance from the vertical center axis (P) is between o - y o mm0 without any potential applied. It has increased more than the case.
したがって、ガス噴出口中央の電極針(5)に直流電源
で電位を付加して被カロ熱物(6)との間に電位差(1
’?を場)を付与することが、被加熱物(6)の局部的
な集中加熱に極めて効果があることがわかる。Therefore, a potential difference (1
'? It can be seen that applying a field) is extremely effective in locally concentrated heating of the object to be heated (6).
一方、第5図は、上述実験と同様の装置で、電極針(5
)と被加熱物(6)との間に電位差(電場)を付与した
場合の電位差無付与の場合に対する伝熱量の増加率(%
)を、電極針への付加電圧(■)をパラメータとして示
すグラフであり、それが示す結果として、直流電源によ
る電極針(6)への付加電圧(V)が負極でその絶対値
がJKV以上のときに伝熱量の増大が顕著であることが
わかる。On the other hand, FIG. 5 shows a device similar to the above experiment, with an electrode needle (5
) and the object to be heated (6) when a potential difference (electric field) is applied compared to when no potential difference is applied (%)
) is a graph showing the applied voltage (■) to the electrode needle as a parameter, and as a result it shows that the applied voltage (V) to the electrode needle (6) by the DC power supply is negative and its absolute value is JKV or more. It can be seen that the amount of heat transfer increases significantly when .
以上、各実験結果に裏付けされるように、本発明構成を
採用することで、被加熱物の局部的な集中加熱において
従来達成できなかった高い伝熱効率の、換言すれば、熱
の集中性、及び、熱効率に極めて優れた燃焼式加熱装置
にできた。As supported by the above experimental results, by adopting the configuration of the present invention, high heat transfer efficiency that could not be achieved conventionally in local concentrated heating of the heated object, in other words, heat concentration, In addition, a combustion type heating device with extremely high thermal efficiency was created.
次に第1実施例を第1図に基づいて説明する。Next, a first embodiment will be described based on FIG.
たセラミック製筒状体でバー六本体(3)を形成し、直
流電源装置(4)の負電極端子に電気接続した電極針(
5)を、その先端がバーナ(3)の上端ガス噴出口(8
8)のほぼ中央に位置するように筒状バーナ本体(3)
に同芯状に内装配置して、かつ、セラミック製バーナ本
体(3)を絶縁体としてガス供給管0)とは電気的に絶
縁した状態でバーナ本体(3)に付設し、もって、電場
利用のブンゼンバーナを構成しである。The bar body (3) is made of a ceramic cylindrical body, and the electrode needle (3) is electrically connected to the negative electrode terminal of the DC power supply (4).
5), whose tip is the upper gas outlet (8) of the burner (3).
8) The cylindrical burner body (3) is located approximately in the center of the burner body (3).
The ceramic burner body (3) is used as an insulator and is attached to the burner body (3) in a state where it is electrically insulated from the gas supply pipe (0), thereby making it possible to utilize the electric field. It consists of a Bunsen burner.
そして、金属製被加熱物(鍛造前の鉄ボルト材料)(6
)を上記ブンゼンバーナの燃焼火炎で加熱処理するに際
して、被加熱物(6)をアースしておくと共に、直流電
源装置(4)で電極針(6)に負極でその絶対値がjK
V以上の電位を付加し、もって、電極針(5)と金属製
被加熱物(61との間に電位差を付与することによシ、
両者+511 (61間に発生する電場の作用で燃焼火
炎中の電極針(6)延長軸芯(P)周シにある電子の運
動を被加熱物((1)側に加速させ、そのことによって
、被加熱物(6)の加熱対象局部に対する燃焼熱の集中
性、及び、伝熱効率を向上するようにしである。Then, a metal heated object (iron bolt material before forging) (6
) with the combustion flame of the Bunsen burner, the object to be heated (6) is grounded, and the DC power supply (4) is connected to the electrode needle (6) with a negative pole whose absolute value is jK.
By applying a potential of V or higher and thereby creating a potential difference between the electrode needle (5) and the metal object to be heated (61),
The action of the electric field generated between both +511 (61) accelerates the movement of electrons around the circumference of the electrode needle (6) and extended axis (P) in the combustion flame toward the heated object ((1), thereby This is intended to improve the concentration of combustion heat to the heating target local part of the object to be heated (6) and the heat transfer efficiency.
次に、第2実施例を第2図によシ説明する。Next, a second embodiment will be explained with reference to FIG.
ガス溶断器においてガス噴出口(8a)を形成する火口
(7)をセラミックで形成すると共に、直流電源装置(
4)の負電極端子に電気接続した電極針(6)を、その
先端がガス噴出口(8a)のほぼ中央に位置するように
、かつ、溶断器本体(3)とは電気的に絶縁した状態で
付設し、もって、金属製被加熱物(鉄板)(6)を溶断
するに際して、被加熱物(6)をアースしておくと共に
、電極針(6)に絶対値jKV以上の負電位を付加して
おくことによシ、両者+6+ l Te3の間の電場の
作用で、燃焼熱の溶断対象箇所に対する集中性、及び、
伝熱効率を高めて能率の良い、かつ、切味の良い溶断を
行なえるようにしである。The crater (7) forming the gas outlet (8a) in the gas fuser is made of ceramic, and the DC power supply (
The electrode needle (6) electrically connected to the negative electrode terminal of 4) is placed so that its tip is located approximately in the center of the gas outlet (8a) and is electrically insulated from the fuser body (3). When fusing the metal heated object (iron plate) (6), the heated object (6) is grounded and the electrode needle (6) is applied with a negative potential of an absolute value of jKV or more. By adding, due to the action of the electric field between both +6+ l Te3, the concentration of combustion heat to the melting target location, and
This is to increase the heat transfer efficiency and enable efficient and sharp cutting.
次に第8実施例を第8図により説明する。Next, an eighth embodiment will be explained with reference to FIG.
シリンダ(8)にピストン(9)及びディスプレイサ(
10)を内装し、シリンダ(8)内の低圧ガス室(8a
)と高圧ガス室(8b)を連通接続する管路(川に、ク
ーラ(I2)、蓄熱器轄、及び、ヒータ(6)を低圧ガ
ス室(8a)側からその順に並設したスターリングエン
ジンにおいて、ヒータ(6)を燃焼火炎で加熱するバー
ナ(3)の筒状本体をセラミックで形成すると共に、直
流電源装置(4)の負電極端子に電気接続した電極針(
5)を、その先端がバーナ(3)のガス噴出口(8a)
のほぼ中央に位置するように、かつ、バーナ(3)本体
、及び、燃料供給管f11とは電気的に絶縁した状態で
設け、もって、第1.第2実施例と同様に、金属製ヒー
タ(6)をアースしておき、かつ、電極針(5)に絶対
値がjKV以上の負電位を付加しておくことによシ、ヒ
ータ(6)を効果的に集中加熱できるようにしである。A piston (9) and a displacer (
10), and a low pressure gas chamber (8a) inside the cylinder (8).
) and the high-pressure gas chamber (8b) in a Stirling engine in which the cooler (I2), the heat storage section, and the heater (6) are arranged side by side in that order from the low-pressure gas chamber (8a) side. The cylindrical body of the burner (3) that heats the heater (6) with a combustion flame is made of ceramic, and the electrode needle (
5), the tip of which is the gas outlet (8a) of the burner (3)
The burner (3) main body and the fuel supply pipe f11 are provided so as to be located approximately in the center thereof, and are electrically insulated from the burner (3) main body and the fuel supply pipe f11. As in the second embodiment, by grounding the metal heater (6) and applying a negative potential with an absolute value of jKV or more to the electrode needle (5), the heater (6) This allows for effective concentrated heating.
更に、応用例を列記すると、直流電源装置(4)の負電
極端子に接続する電極針(5)の材質、及び、バーナ(
6)への取付構造は、種々の変更・改良が可能である。Furthermore, to list application examples, the material of the electrode needle (5) connected to the negative electrode terminal of the DC power supply (4), and the material of the burner (
The mounting structure for 6) can be modified and improved in various ways.
金属製被加熱物(6)を、負電極としての電極針(5)
に対して正電極とするだめの電気的構造も種々の改良が
可能である。The metal object to be heated (6) is connected to the electrode needle (5) as a negative electrode.
Various improvements can be made to the electrical structure of the positive electrode.
直流電流装置(4)としては、種々の型式の電池と変圧
器とを組合わせたものや、交流電源からの交流電気を直
流化する装置と変圧器とを組合わせたもの等、種々の型
式のものを適用できる。The DC current device (4) can be of various types, such as a combination of various types of batteries and a transformer, or a combination of a device that converts AC electricity from an AC power supply into DC and a transformer. can be applied.
本発明は、金属製被加熱物を集中的に加熱する種々の燃
焼式加熱装置を対象とするものであシ、又、その用途も
不問である。The present invention is directed to various combustion type heating devices that intensively heat a metal object to be heated, and its use is not limited.
第1図ないし第8図は本発明の第1ないし第8実施例の
夫々を示す図である。 第4図は、実験装置及び参考実
験結果を示す図とグラフ、第5図は、他の参考実験結果
を示すグラフである。
(3)・・・・・・バーナ、(3a)・・・・・・ガス
噴出口、(4)・・・・・・直流電源装置、(5)・・
・・・・電極針、(6)・・・・・・被加熱物、(■)
・・・・電位差。
代理人 弁理士 北 村 修
笥1° 詔3■
□□−−1
萌 2 日
第5図
−で
°°[]
鴇−
11貝
1
11 で
つコ l1pt/
第 4図1 to 8 are diagrams showing first to eighth embodiments of the present invention, respectively. FIG. 4 is a diagram and a graph showing the experimental apparatus and the results of a reference experiment, and FIG. 5 is a graph showing the results of another reference experiment. (3)...Burner, (3a)...Gas outlet, (4)...DC power supply, (5)...
... Electrode needle, (6) ... Heated object, (■)
...Potential difference. Agent Patent Attorney Kitamura Shushu 1° Rescript 3■ □□--1 Moe 2nd Figure 5-°°[] Toki- 11 Kai 1 11 Detsuko l1pt/ Figure 4
Claims (1)
針(5)を設け、その電極針(6)と金属製被加熱物(
6)との間にjKV以上の電位差(V)を付与する直流
電源装置(4)を、その負電極が前記電極針(6)に接
続された状態で設けである燃焼式加熱装置。The # hill of the gas outlet (8a) of the burner (3) is provided with an electrode needle (5) in the center, and the electrode needle (6) and the metal heated object (
6) is provided with a DC power supply device (4) that applies a potential difference (V) of jKV or more between the electrode needle (6) and its negative electrode connected to the electrode needle (6).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7316984A JPS60216111A (en) | 1984-04-11 | 1984-04-11 | Heating apparatus of combustion type |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7316984A JPS60216111A (en) | 1984-04-11 | 1984-04-11 | Heating apparatus of combustion type |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS60216111A true JPS60216111A (en) | 1985-10-29 |
JPH0373769B2 JPH0373769B2 (en) | 1991-11-22 |
Family
ID=13510380
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7316984A Granted JPS60216111A (en) | 1984-04-11 | 1984-04-11 | Heating apparatus of combustion type |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS60216111A (en) |
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-
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- 1984-04-11 JP JP7316984A patent/JPS60216111A/en active Granted
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