JPS621481B2 - - Google Patents
Info
- Publication number
- JPS621481B2 JPS621481B2 JP56164295A JP16429581A JPS621481B2 JP S621481 B2 JPS621481 B2 JP S621481B2 JP 56164295 A JP56164295 A JP 56164295A JP 16429581 A JP16429581 A JP 16429581A JP S621481 B2 JPS621481 B2 JP S621481B2
- Authority
- JP
- Japan
- Prior art keywords
- oxygen
- acetylene
- nozzle
- annular base
- flow rate
- 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
Links
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 claims description 34
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 34
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 claims description 34
- 239000001301 oxygen Substances 0.000 claims description 34
- 229910052760 oxygen Inorganic materials 0.000 claims description 34
- 239000007789 gas Substances 0.000 claims description 25
- 238000003466 welding Methods 0.000 claims description 10
- 239000011295 pitch Substances 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 238000007664 blowing Methods 0.000 description 4
- 239000000498 cooling water Substances 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 2
- 239000002360 explosive Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/32—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid using a mixture of gaseous fuel and pure oxygen or oxygen-enriched air
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Gas Burners (AREA)
Description
【発明の詳細な説明】
本発明はガス圧接用リングバーナに関するもの
である。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a ring burner for gas pressure welding.
接合すべき母材に軸方向の圧縮圧力を加え、接
合部をガス炎で加熱するガス圧接法が広く知られ
ている。 A gas pressure welding method is widely known in which compressive pressure in the axial direction is applied to base materials to be joined and the joint portion is heated with a gas flame.
ガス圧接方法は酸素、アセチレンガス炎を用い
て被接合体の接合部を局部加熱し、圧力を加えて
接合する方法である。 The gas pressure welding method is a method in which the joint parts of the objects to be joined are locally heated using an oxygen or acetylene gas flame, and pressure is applied to join them.
従来のガス圧接装置を用いて鋼管の接合を行う
とき、接合すべき鋼管を本体に固着した固定側ク
ランプおよび本体の軸方向に油圧シリンダーにて
摺動可能にした移動側クランプによつてそれぞれ
クランプし、リングバーナで接合部を加熱赤熱
し、適当時期に油圧シリンダーで加圧し圧接す
る。 When joining steel pipes using a conventional gas pressure welding device, the steel pipes to be joined are clamped by a stationary clamp that is fixed to the main body and a movable clamp that is slidable in the axial direction of the main body using a hydraulic cylinder. Then, the joint is heated to red-hot temperature using a ring burner, and at the appropriate time, pressure is applied using a hydraulic cylinder to weld.
なおこの時リングバーナは鋼管に回転自在に取
付けられた面倣い装置に支持され、揺動装置によ
り鋼管の軸方向および周方向に揺動される。 At this time, the ring burner is supported by a surface copying device rotatably attached to the steel pipe, and is swung in the axial direction and circumferential direction of the steel pipe by a swinging device.
また酸素、アセチレンおよび冷却水は外部より
ホースを通じて、酸素とアセチレンについては混
合器を内蔵しているガス調整装置で混合調整され
た後、ホースを経由してリングバーナに供給され
る。 Oxygen, acetylene, and cooling water are supplied from the outside through a hose, and the oxygen and acetylene are mixed and adjusted using a gas regulator that includes a mixer, and then supplied to the ring burner through the hose.
ところで、このようなガス圧接においては、鋼
材接合部はその表面が溶融あるいは溶融寸前まで
加熱されるため、同部より火花の発生あるいは溶
融金属の滴下があり、これがリングバーナのノズ
ル穴に当ると逆火が起る。このためその爆発力に
より接合部の溶融金属が吹きとばされたり、加熱
炎が消えたり、また場合によつてはガスホース等
の器具を破損することもあるため、圧接作業上あ
るいは安全上問題がある。また良好なガス圧接を
行うには、適正な還元性雰囲気の下で、接合部を
周方向に均一な温度に加熱することが必要である
が、従来のバーナでは、しばしばバーナの製作誤
差、火口の摩耗のため、あるいは母材の寸法誤差
（肉厚変動）のため、偏加熱が生じるが、それを
修正する方法がないという不都合、さらにはガス
の還元度は、酸素／アセチレンの流量の比で決る
が、それらの流量はバーナの入口でしか調整出来
ず、局部的に調整出来ない不都合があつた。 By the way, in such gas pressure welding, the surface of the steel joint is heated to melt or almost melt, so sparks are generated or molten metal drips from the joint, and if this hits the nozzle hole of the ring burner, A backfire occurs. As a result, the explosive force can blow away the molten metal at the joint, extinguish the heating flame, and even damage equipment such as gas hoses, which poses problems for pressure welding work and safety. be. In addition, in order to perform good gas pressure welding, it is necessary to heat the joint to a uniform temperature in the circumferential direction under an appropriate reducing atmosphere. Uneven heating occurs due to wear or dimensional errors in the base material (wall thickness fluctuations), but there is no way to correct it.Furthermore, the degree of reduction of the gas is affected by the ratio of oxygen/acetylene flow rates. However, these flow rates could only be adjusted at the inlet of the burner, and had the disadvantage that they could not be adjusted locally.
本発明者らは前記のバーナの逆火防止とガス圧
接に要求される母材の均一加熱を同時に満足する
バーナについて研究の結果、特開昭57−49723号
公報において、ノズル本体を環状基台の側面に取
付ける構造を提起したが、構造的に大型になつ
た。 As a result of our research into a burner that satisfies the above-mentioned flashback prevention and uniform heating of the base material required for gas pressure welding, the present inventors discovered in Japanese Patent Application Laid-Open No. 57-49723 that a nozzle body is attached to an annular base. We proposed a structure that would be attached to the side of the vehicle, but it ended up being structurally large.
本発明は上記リングバーナを更に改良して、構
造を簡単にし、軽量化、小型化、低廉化を図つた
リングバーナを提供するものである。 The present invention further improves the ring burner described above to provide a ring burner that has a simpler structure, is lighter in weight, smaller in size, and lower in cost.
すなわち本発明はノズル本体取付穴を所望のピ
ツチに設け、酸素、アセチレン供給系を有する環
状基台と、該酸素、アセチレン供給系と導通し、
かつノズルの軸心方向にガス混合室を内蔵し、さ
らに酸素およびアセチレンをノズル内の流路を経
由して同ガス混合室に流入せしめるノズル本体と
からなり前記ノズル本体を前記環状基台の中心点
に指向配設すると共に、環状基台あるいはノズル
本体に酸素流量調整用つまみおよびアセチレン流
量調整用つまみを設けたことを特徴とするガス圧
接用リングバーナに関するものである。 That is, the present invention provides a nozzle body mounting hole at a desired pitch, and communicates with an annular base having an oxygen and acetylene supply system and the oxygen and acetylene supply system,
The nozzle has a gas mixing chamber built in in the axial direction of the nozzle, and a nozzle body that allows oxygen and acetylene to flow into the gas mixing chamber via a flow path in the nozzle. The present invention relates to a ring burner for gas pressure welding characterized in that the annular base or the nozzle body is provided with an oxygen flow rate adjustment knob and an acetylene flow rate adjustment knob.
以下本発明を図面について説明する。 The present invention will be explained below with reference to the drawings.
本発明バーナの環状基台１０に第１図に示され
るように、所望のピツチでノズル２０の取付孔１
５−１，１５−２，１５−ｎを必要箇数設ける。
後述するようにノズル２０は環状基台１０の中心
に指向して配設される。環状基台１０は酸素、ア
セチレンの供給系１３，１４及び冷却水の供給及
び排水系１１−１，１１−２を有している。Ｐは
被処理鋼管を示す。 As shown in FIG. 1, the annular base 10 of the burner of the present invention has mounting holes 1 for the nozzles 20 at desired pitches.
5-1, 15-2, and 15-n are provided in necessary numbers.
As will be described later, the nozzle 20 is disposed facing the center of the annular base 10. The annular base 10 has oxygen and acetylene supply systems 13 and 14 and cooling water supply and drainage systems 11-1 and 11-2. P indicates the steel pipe to be treated.
ノズル２０は第２図の断面図及び第３図の斜視
図により理解されるように、ノズル本体２２とチ
ツプ２４より構成され、また環状基台１０は環状
基台本体２１とサイドプレート３２とから形成さ
れ、ネヂ３５−１，３５−２によりサイドプレー
ト３２は環状基台本体２１に固定されている。環
状基台本体２１には酸素流量調整用つまみ２６
と、アセチレン流量調整用つまみ２７が設けられ
る。第２図において酸素は酸素室１３−２よりニ
ードル２９部の間隙を通過し、吹き込み口２８を
通り混合室２３に流入する。またアセチレンはア
セチレン室１４−２よりニードル３１部を通り、
吹き込み口３０を経て、混合室２３に流入する。 As understood from the cross-sectional view in FIG. 2 and the perspective view in FIG. The side plate 32 is fixed to the annular base main body 21 by screws 35-1 and 35-2. The annular base body 21 has an oxygen flow rate adjustment knob 26.
An acetylene flow rate adjustment knob 27 is provided. In FIG. 2, oxygen passes through the gap at the needle 29 from the oxygen chamber 13-2, passes through the blowing port 28, and flows into the mixing chamber 23. In addition, acetylene passes through the needle 31 from the acetylene chamber 14-2,
It flows into the mixing chamber 23 through the blowing port 30 .
また後述の第４図では酸素は酸素室１３−２か
ら酸素入口３６を経て、吹き込み口２８に至り、
混合室２３に流入する。また同じくアセチレンは
アセチレン室１４−２より入口３７からガス混合
室２３に至る。 Further, in FIG. 4, which will be described later, oxygen passes from the oxygen chamber 13-2 through the oxygen inlet 36 and reaches the blowing port 28.
It flows into the mixing chamber 23. Similarly, acetylene reaches the gas mixing chamber 23 from the acetylene chamber 14-2 through the inlet 37.
従つて各ノズルの加熱力を加減するには酸素、
アセチレンの両方の流量調整つまみを回し、また
そのガスの還元度を調整するには、酸素あるいは
アセチレンの流量調整つまみを、適宜調整すれば
良い。すなわち還元度を上げるにはアセチレンの
流量を上げるか、酸素の流量を下げれば良い。ま
た逆に還元度を下げるにはアセチレンの流量を下
げるか、酸素の流量を上げれば容易に行える。酸
素の流量調整はつまみ２６のニードル２９と吹込
口２８との間隙を調整することによつて目的が達
成されるが、必ずしも図示に特定されない。アセ
チレン流量調整もほゞ酸素流量調整と同じ構造が
与えられる。すなわちアセチレンの流量調整つま
み２７のニードル３１と吹込口３０との間隙を調
整することによつて目的を達成される。 Therefore, to adjust the heating power of each nozzle, oxygen,
To adjust the degree of reduction of the gas by turning both acetylene flow rate adjustment knobs, the oxygen or acetylene flow rate adjustment knobs may be adjusted as appropriate. In other words, to increase the degree of reduction, either increase the flow rate of acetylene or decrease the flow rate of oxygen. Conversely, the degree of reduction can be easily lowered by lowering the flow rate of acetylene or increasing the flow rate of oxygen. The purpose of adjusting the oxygen flow rate is achieved by adjusting the gap between the needle 29 of the knob 26 and the inlet 28, but this is not necessarily specified in the drawings. Acetylene flow rate adjustment is provided with substantially the same structure as oxygen flow rate adjustment. That is, the purpose is achieved by adjusting the gap between the needle 31 of the acetylene flow rate adjustment knob 27 and the blowing port 30.
前記酸素室１３−２、アセチレン室１４−２は
環状基台１０に設けられる酸素、アセチレン供給
系とそれぞれ導通し、かつ環状基台本体２１に同
心状に設けられる。 The oxygen chamber 13-2 and the acetylene chamber 14-2 are connected to the oxygen and acetylene supply systems provided on the annular base 10, respectively, and are provided concentrically on the annular base main body 21.
ノズル本体２２には火口２５に導通するガス混
合室２３がノズル２０の軸心方向に内設されてい
る。 A gas mixing chamber 23 that communicates with the nozzle 25 is provided inside the nozzle body 22 in the axial direction of the nozzle 20 .
本発明バーナの環状基台１０には、上述のノズ
ル２０が、例えば等ピツチに環状基台１０の中心
に指向して配設される。 On the annular base 10 of the burner of the present invention, the above-mentioned nozzles 20 are arranged, for example, at equal pitches and directed toward the center of the annular base 10.
第４図は本発明の他の実施例の断面図を示す。 FIG. 4 shows a cross-sectional view of another embodiment of the invention.
図において酸素流量調整用つまみ２６及びアセ
チレン流量調整用つまみ２７はノズル２０の軸心
方向に沿つて調整可能である。 In the figure, the oxygen flow rate adjustment knob 26 and the acetylene flow rate adjustment knob 27 can be adjusted along the axial direction of the nozzle 20.
又酸素室１３−２、アセチレン室１４−２は環
状基台本体２１に同心状に設けられ、前記環状基
台１０に設ける酸素、アセチレン供給系に連通す
る。 Further, the oxygen chamber 13-2 and the acetylene chamber 14-2 are provided concentrically on the annular base body 21 and communicate with the oxygen and acetylene supply system provided on the annular base 10.
以上詳述した通り本発明は酸素室、アセチレン
室および場合によつては冷却水室を同心状に環状
基台本体に設け、混合室を有するノズルをノズル
の数だけ等ピツチに半径方向に貫通する穴を設け
た環状基台に、取付けたことである。また各ガス
の流量調整は第２図のようにバーナ側面に取付け
たノズル半径方向のつまみにより行うか、あるい
は第４図のようにノズルの軸方向に取付けたつま
みにより行う。 As detailed above, the present invention provides an oxygen chamber, an acetylene chamber, and in some cases a cooling water chamber concentrically in the annular base body, and penetrates the nozzles having mixing chambers in the radial direction at equal intervals equal to the number of nozzles. It was attached to an annular base with a hole in it. Further, the flow rate of each gas is adjusted by a knob attached in the radial direction of the nozzle attached to the side surface of the burner as shown in FIG. 2, or by a knob attached in the axial direction of the nozzle as shown in FIG. 4.
従つてノズルを直接環状基台に差し込んで取付
けるため構造が簡単になり、軽量化、小型化低廉
化の効果がある。 Therefore, since the nozzle is directly inserted and attached to the annular base, the structure is simplified, and it is possible to reduce the weight, size, and cost.
特に本発明は、ノズルの数だけ等ピツチに、半
径方向に貫通する穴を環状基台に設けてノズルを
配設するので、接合部を周方向に均一な温度に加
熱することができる。 In particular, in the present invention, the nozzles are arranged by providing radially penetrating holes in the annular base at equal intervals corresponding to the number of nozzles, so that the joint portion can be heated to a uniform temperature in the circumferential direction.
又各ノズルの軸心方向に、ガス混合室を内蔵す
るので、ガス混合室は小容量となり、逆火の恐れ
がない。 Furthermore, since a gas mixing chamber is built in in the axial direction of each nozzle, the gas mixing chamber has a small capacity and there is no risk of backfire.
更に酸素及びアセチレンの流量調整用つまみを
それぞれ設けたので、ガス還元度を容易に選択
し、かつ微調整し得る効果がある。 Furthermore, since knobs for adjusting the flow rates of oxygen and acetylene are provided, the degree of gas reduction can be easily selected and finely adjusted.
第１図は本発明バーナの環状基台の斜視図、第
２図は本発明バーナの断面図、第３図は本発明バ
ーナの要部斜視図、第４図は本発明の他の実施例
の断面図である。
１０；環状基台、１１；冷却水室、１３；酸素
室、１４；アセチレン室、１５；ノズル取付孔、
２０；ノズル、２３；混合室、２４；チツプ、２
５；火口、２６：酸素流量調正用つまみ、２７：
アセチレン流量調整用つまみ。
FIG. 1 is a perspective view of the annular base of the burner of the present invention, FIG. 2 is a sectional view of the burner of the present invention, FIG. 3 is a perspective view of the main part of the burner of the present invention, and FIG. 4 is another embodiment of the present invention. FIG. 10; annular base; 11; cooling water chamber; 13; oxygen chamber; 14; acetylene chamber; 15; nozzle mounting hole;
20; Nozzle, 23; Mixing chamber, 24; Chip, 2
5; Crater, 26: Oxygen flow rate adjustment knob, 27:
Knob for adjusting the acetylene flow rate.
Claims (1)
素、アセチレン供給系を有する環状基台と、該酸
素、アセチレン供給系と導通し、かつノズルの軸
心方向にガス混合室を内蔵し、さらに酸素および
アセチレンをノズル内の流路を経由して同ガス混
合室に流入せしめるノズル本体とからなり、前記
ノズル本体を前記環状基台の中心点に指向配設す
ると共に、環状基台あるいはノズル本体に酸素流
量調整用つまみおよびアセチレン流量調整用つま
みを設けたことを特徴とするガス圧接用リングバ
ーナ。1 Nozzle body mounting holes are provided at desired pitches, and an annular base having an oxygen and acetylene supply system is connected to the oxygen and acetylene supply system, and a gas mixing chamber is built in the axial direction of the nozzle, and an oxygen and acetylene supply system is provided. and a nozzle body that allows acetylene to flow into the gas mixing chamber via a flow path in the nozzle, and the nozzle body is arranged oriented toward the center point of the annular base, and the nozzle body is oriented toward the center point of the annular base and A ring burner for gas pressure welding, characterized by being provided with a knob for adjusting the oxygen flow rate and a knob for adjusting the acetylene flow rate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56164295A JPS5866709A (en) | 1981-10-16 | 1981-10-16 | Ring burner for gas pressure welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56164295A JPS5866709A (en) | 1981-10-16 | 1981-10-16 | Ring burner for gas pressure welding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5866709A JPS5866709A (en) | 1983-04-21 |
| JPS621481B2 true JPS621481B2 (en) | 1987-01-13 |
Family
ID=15790393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56164295A Granted JPS5866709A (en) | 1981-10-16 | 1981-10-16 | Ring burner for gas pressure welding |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5866709A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03253176A (en) * | 1990-03-01 | 1991-11-12 | Matsushita Electric Ind Co Ltd | Video signal processor |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60162113A (en) * | 1984-02-01 | 1985-08-23 | Nippon Steel Corp | Nozzle for gas pressure welding burner |
-
1981
- 1981-10-16 JP JP56164295A patent/JPS5866709A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03253176A (en) * | 1990-03-01 | 1991-11-12 | Matsushita Electric Ind Co Ltd | Video signal processor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5866709A (en) | 1983-04-21 |
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