JP2505489B2 - Method of dimming plasma torch synchrotron radiation - Google Patents
Method of dimming plasma torch synchrotron radiationInfo
- Publication number
- JP2505489B2 JP2505489B2 JP62233869A JP23386987A JP2505489B2 JP 2505489 B2 JP2505489 B2 JP 2505489B2 JP 62233869 A JP62233869 A JP 62233869A JP 23386987 A JP23386987 A JP 23386987A JP 2505489 B2 JP2505489 B2 JP 2505489B2
- Authority
- JP
- Japan
- Prior art keywords
- dimming
- cooling water
- plasma torch
- plasma
- synchrotron radiation
- 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
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- Plasma Technology (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明はプラズマトーチ放射光の減光方法に関する。The present invention relates to a method for dimming plasma torch radiation.
従来のプラズマトーチを第２図縦断面図について説明
すると、１は高周波発振器、２は高周波発振器１に接続
されたらせん状コイル、3,4はコイル２内に同軸的に配
設された径の異なる二重円筒体であるが、通常絶縁性に
優れかつ耐熱性のある石英ガラス管を使用する。５は内
側の石英ガラス管４内にガスを供給するガス供給孔、６
は径の異なる二重石英ガラス管3,4の相互のすきまに冷
却水を供給するための冷却水供給孔であり、７は排出す
るための冷却水排出孔である。８は内側の石英ガラス管
４内に発生するプラズマ火炎である。A conventional plasma torch will be described with reference to a vertical sectional view of FIG. 2. 1 is a high frequency oscillator, 2 is a spiral coil connected to the high frequency oscillator 1, and 3 and 4 are coaxially arranged in the coil 2. Although it is a different double cylinder, a quartz glass tube having excellent insulation and heat resistance is usually used. 5 is a gas supply hole for supplying gas into the quartz glass tube 4 inside, 6
Is a cooling water supply hole for supplying cooling water to the mutual clearance between the double quartz glass tubes 3 and 4 having different diameters, and 7 is a cooling water discharge hole for discharging. Reference numeral 8 is a plasma flame generated inside the quartz glass tube 4 inside.
しかして、このプラズマ火炎８の発生は、ガス供給孔
５から石英ガラス管４内へ連続的にガスを供給しなが
ら、コイル２に高周波電流を印加させることによつて同
コイル２の周りに交番磁場を誘導し、石英ガラス管４内
のガスをプラズマ状態にしプラズマ火炎８を発生させ
る。その際プラズマ火炎８は4,000〜10,000℃になるた
め、冷却水供給孔６により冷却水を供給し常に石英ガラ
ス管４を冷却し、冷却水排出孔７から排出しており、通
常冷却水には水を使用している。Therefore, the plasma flame 8 is generated around the coil 2 by applying a high frequency current to the coil 2 while continuously supplying the gas into the quartz glass tube 4 from the gas supply hole 5. A magnetic field is induced to bring the gas in the quartz glass tube 4 into a plasma state and generate a plasma flame 8. At that time, since the plasma flame 8 reaches 4,000 to 10,000 ° C., cooling water is supplied through the cooling water supply hole 6 to constantly cool the quartz glass tube 4 and discharge it through the cooling water discharge hole 7. Uses water.
このような装置においては、コイル２内に配設される
円筒体は耐熱性が要求されるとともに、コイル２の周り
に発生する交番磁場によつて誘導加熱されるのを避ける
ため絶縁性も要求され、そのため通常石英ガラス管3,4
が使用されているわけであるが、しかしながら、石英ガ
ラス管3,4は透明なため、プラズマ火炎８発生時には同
石英ガラス管3,4を通して強烈な光が外部へ放射され
る。そのため周りに遮光板を必要とするか、又は作業者
は遮光具を装着しなければならない。In such a device, the cylindrical body disposed inside the coil 2 is required to have heat resistance, and also to have insulating properties in order to prevent induction heating due to an alternating magnetic field generated around the coil 2. And therefore normal quartz glass tubes 3,4
However, since the quartz glass tubes 3 and 4 are transparent, intense light is emitted to the outside through the quartz glass tubes 3 and 4 when the plasma flame 8 is generated. Therefore, a shading plate is required around the work, or an operator must wear a shading device.
本発明は、このような事情に鑑みて提案されたもの
で、遮光板の必要がなくなり作業環境が改善され、かつ
作業者は遮光具を必要としなくなり作業の能率化をはか
ることができるプラズマトーチ放射光の減光方法を提供
することを目的とする。The present invention has been proposed in view of such circumstances, and a plasma torch that does not require a light shielding plate and improves the working environment, and that an operator does not need a light shielding tool and can improve work efficiency. It is an object of the present invention to provide a method for dimming emitted light.
そのために本発明は、高周波発振器に接続されたらせ
ん状コイル内に同軸的に配設された径の異なる二重耐熱
ガラス管の内側管内にガスを供給するとともに上記二重
耐熱ガラス管相互のすきまに冷却水を供給しながら上記
らせん状コイルに高周波電流を印加して上記ガスからプ
ラズマ火炎を発生させるプラズマトーチにおいて、上記
冷却水に不透明液又は遮光性の強い半透明液を用いプラ
ズマ火炎の外部への放射光を減光させることを特徴とす
る。To this end, the present invention supplies gas into the inner tube of a double heat-resistant glass tube having a different diameter coaxially arranged in a spiral coil connected to a high-frequency oscillator, and also provides a clearance between the double heat-resistant glass tubes. In a plasma torch for generating a plasma flame from the gas by applying a high-frequency current to the spiral coil while supplying cooling water to the plasma coil, an opaque liquid or a semi-transparent liquid having a strong light-shielding property is used as the cooling water outside the plasma flame. It is characterized by dimming the emitted light to.
上述の構成により、遮光板の必要がなくなり作業環境
が改善され、かつ作業者は遮光具を必要としなくなり作
業の能率化をはかることができるプラズマトーチ放射光
の減光方法を得ることができる。With the above-described configuration, it is possible to obtain a plasma torch radiant light extinction method that does not require a light shielding plate, improves the working environment, and does not require a light shielding member for an operator to improve work efficiency.
本発明プラズマトーチ放射光の減光方法を第１図縦断
面図について説明する。The method of dimming the emitted light of the plasma torch of the present invention will be described with reference to FIG.
第１図において、第２図と同一の符号はそれぞれ同一
の部材を示し、９は二重石英ガラス管3,4のすきま内を
流れる不透明液である。In FIG. 1, the same reference numerals as in FIG. 2 indicate the same members, and 9 is an opaque liquid that flows in the gaps of the double quartz glass tubes 3 and 4.
プラズマ火炎８の発生及び作用は従来と同様である
が、本発明方法では冷却水に不透明液９を使用し、図示
せざるポンプによつて冷却水供給孔６から供給して冷却
水排出孔７から排出させ、石英ガラス管3,4のすきま内
を循環させ、これによつて石英ガラス管４内のプラズマ
火炎８の強烈な光の外部への放射光を遮り緩和すること
ができる。The generation and action of the plasma flame 8 are the same as in the conventional case, but in the method of the present invention, the opaque liquid 9 is used as the cooling water and is supplied from the cooling water supply hole 6 by the pump (not shown) to supply the cooling water discharge hole 7 And circulates in the gaps of the quartz glass tubes 3 and 4, whereby the intense light of the plasma flame 8 in the quartz glass tube 4 can be blocked and alleviated to the outside.
なお循環冷却水としては、半透明の遮光性の強い液を
使用してもよい。As the circulating cooling water, a semitransparent liquid having a strong light shielding property may be used.
要するに本発明によれば、高周波発振器に接続された
らせん状コイル内に同軸的に配設された径の異なる二重
耐熱ガラス管の内側管内にガスを供給するとともに上記
二重耐熱ガラス管相互のすきまに冷却水を供給しながら
上記らせん状コイルに高周波電流を印加して上記ガスか
らプラズマ火炎を発生させるプラズマトーチにおいて、
上記冷却水に不透明液又は遮光性の強い半透明液を用い
プラズマ火炎の外部への放射光を減光させることによ
り、遮光板の必要がなくなり作業環境が改善され、かつ
作業者は遮光具を必要としなくなり作業の能率化をはか
ることができるプラズマトーチ放射光の減光方法を得る
から、本発明は産業上極めて有益なものである。In short, according to the present invention, gas is supplied into the inner tube of the double heat-resistant glass tubes having different diameters which are coaxially arranged in the spiral coil connected to the high-frequency oscillator, and the double heat-resistant glass tubes are connected to each other. In a plasma torch for generating a plasma flame from the gas by applying a high frequency current to the spiral coil while supplying cooling water to the gap,
By reducing the emitted light to the outside of the plasma flame by using an opaque liquid or a semi-transparent liquid having a strong light shielding property for the cooling water, the need for a light shielding plate is eliminated, and the working environment is improved, and the worker wears a light shielding device. INDUSTRIAL APPLICABILITY The present invention is extremely useful industrially because it provides a method of extinguishing a plasma torch synchrotron radiation that is not required and can increase the efficiency of work.
第１図は本発明プラズマトーチ放射光の減光方法の一実
施例を示す縦断面図、第２図は従来のプラズマトーチの
縦断面図である。 １……高周波発振器、２……らせん状コイル、3,4……
石英ガラス管、５……ガス供給孔、６……冷却水供給
孔、７……冷却水排出孔、８……プラズマ火炎、９……
不透明液。FIG. 1 is a vertical sectional view showing an embodiment of a method for dimming the emitted light of a plasma torch of the present invention, and FIG. 2 is a vertical sectional view of a conventional plasma torch. 1 ... High frequency oscillator, 2 ... Helical coil, 3,4 ...
Quartz glass tube, 5 ... Gas supply hole, 6 ... Cooling water supply hole, 7 ... Cooling water discharge hole, 8 ... Plasma flame, 9 ...
Opaque liquid.
Claims (1)
内に同軸的に配設された径の異なる二重耐熱ガラス管の
内側管内にガスを供給するとともに上記二重耐熱ガラス
管相互のすきまに冷却水を供給しながら上記らせん状コ
イルに高周波電流を印加して上記ガスからプラズマ火炎
を発生させるプラズマトーチにおいて、上記冷却水に不
透明液又は遮光性の強い半透明液を用いプラズマ火炎の
外部への放射光を減光させることを特徴とするプラズマ
トーチ放射光の減光方法。1. A gas is supplied into an inner tube of a double heat-resistant glass tube having different diameters which are coaxially arranged in a spiral coil connected to a high-frequency oscillator, and a gap is provided between the double heat-resistant glass tubes. In a plasma torch for generating a plasma flame from the gas by applying a high frequency current to the spiral coil while supplying cooling water, an opaque liquid or a semi-transparent liquid having a strong light shielding property is used as the cooling water to the outside of the plasma flame. A method of dimming synchrotron radiation of a plasma torch, characterized by dimming synchrotron radiation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62233869A JP2505489B2 (en) | 1987-09-18 | 1987-09-18 | Method of dimming plasma torch synchrotron radiation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62233869A JP2505489B2 (en) | 1987-09-18 | 1987-09-18 | Method of dimming plasma torch synchrotron radiation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6477900A JPS6477900A (en) | 1989-03-23 |
| JP2505489B2 true JP2505489B2 (en) | 1996-06-12 |
Family
ID=16961846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62233869A Expired - Lifetime JP2505489B2 (en) | 1987-09-18 | 1987-09-18 | Method of dimming plasma torch synchrotron radiation |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2505489B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5895548A (en) * | 1996-03-29 | 1999-04-20 | Applied Komatsu Technology, Inc. | High power microwave plasma applicator |
| JP2009522199A (en) * | 2005-12-29 | 2009-06-11 | シリカ テック リミテッド ライアビリティ カンパニー | Improved plasma torch for making synthetic silica |
-
1987
- 1987-09-18 JP JP62233869A patent/JP2505489B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6477900A (en) | 1989-03-23 |
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