JPH0614934Y2 - Welding device for heat exchanger tube end - Google Patents
Welding device for heat exchanger tube endInfo
- Publication number
- JPH0614934Y2 JPH0614934Y2 JP1986115975U JP11597586U JPH0614934Y2 JP H0614934 Y2 JPH0614934 Y2 JP H0614934Y2 JP 1986115975 U JP1986115975 U JP 1986115975U JP 11597586 U JP11597586 U JP 11597586U JP H0614934 Y2 JPH0614934 Y2 JP H0614934Y2
- Authority
- JP
- Japan
- Prior art keywords
- welding
- heat exchange
- tube
- tool
- exchange tube
- 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
- 238000003466 welding Methods 0.000 title claims description 81
- 238000006073 displacement reaction Methods 0.000 claims 1
- 239000003381 stabilizer Substances 0.000 description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Landscapes
- Butt Welding And Welding Of Specific Article (AREA)
Description
【考案の詳細な説明】 〈産業上の利用分野〉 本考案は、熱交換器として例えば原子カプラントの蒸気
発生器伝熱管を管板部でスリーブ補修する際に使用され
る管端部溶接装置に関する。DETAILED DESCRIPTION OF THE INVENTION <Industrial field of application> The present invention relates to a pipe end welding device used as a heat exchanger, for example, when repairing a sleeve of a steam generator heat transfer pipe of an atomic couplant at a tube plate portion. .
〈従来の技術〉 蒸気発生器の伝熱管は端部を管板に固定されている。腐
蝕等により漏洩等の損傷を起した伝熱管を補修する方法
の一つとして漏洩部位を覆うスリーブ（円筒）を伝熱管
に入れ、スリーブの両端部をシール溶接するものがあ
る。この方法は第６図に示す様に、蒸気発生器の水室１
内に作業員が入り溶接工具２を任意の位置の伝熱管に取
付けその後水室１外より遠隔にて溶接を行う様になって
いる。<Prior Art> A heat transfer tube of a steam generator has an end fixed to a tube plate. As one of the methods for repairing a heat transfer tube that has been damaged by leakage due to corrosion or the like, there is a method in which a sleeve (cylindrical) that covers the leaked portion is placed in the heat transfer tube, and both ends of the sleeve are seal-welded. This method, as shown in FIG. 6, is the water chamber 1 of the steam generator.
A worker enters inside and attaches the welding tool 2 to a heat transfer tube at an arbitrary position, and thereafter performs welding remotely from outside the water chamber 1.
従来の溶接工具２は、第７図に示す様に被補修管３から
離れた伝熱管４にクランプシリンダ５にて固定される。
この場合溶接トーチ６の先端が補修用スリーブ７の外周
上に一致する様に溶接工具２に溶接トーチ６が取付けら
れている。第７図の様に設定された後は溶接トーチ６の
所定の溶接位置まで高さ上昇させ、被補修管３の中心
軸X1の廻りに、トーチ軸X2が回転してスリーブ７と被補
修管３とを溶接する。As shown in FIG. 7, the conventional welding tool 2 is fixed to the heat transfer tube 4 separated from the repaired tube 3 by the clamp cylinder 5.
In this case, the welding torch 6 is attached to the welding tool 2 so that the tip of the welding torch 6 is aligned with the outer circumference of the repair sleeve 7. After setting as shown in FIG. 7, the height of the welding torch 6 is raised to a predetermined welding position, and the torch shaft X 2 rotates around the center axis X 1 of the pipe 3 to be repaired so that the sleeve 7 and the sleeve 7 are not covered. Weld the repair pipe 3.
〈考案が解決しようとする問題点〉 従来の溶接工具の不具合を下記に示す。<Problems to be solved by the invention> The problems of conventional welding tools are shown below.
1.作業員が工具取付けの度に水室１に入らなければなら
ず、作業員の被曝が多く連続して作業が行なえないので
作業時間がかかる。1. The worker has to enter the water chamber 1 every time the tool is attached, and because the worker is exposed to a lot of radiation and continuous work cannot be performed, it takes time.
2.溶接トーチ６は溶接工具２に固定されている為、トー
チ軸X2が被補修管軸X1の廻りを回転すると、トーチケー
ブル８がねじられ負荷になると共に溶接後には必ず溶接
トーチ６を逆転させなくてはならず操作に時間がかか
る。2. Since the welding torch 6 is fixed to the welding tool 2, when the torch axis X 2 rotates around the pipe axis X 1 to be repaired, the torch cable 8 is twisted and becomes a load, and the welding torch 6 is always used after welding. It has to be reversed and takes a long time to operate.
3.第８図に示すように、溶接工具２に工具取付板９を取
付けてロボット装置１０に搭載して溶接工具２を被補修
管３に案内しようと改造しても、溶接工具２のクランプ
シリンダ５と溶接トーチ６の距離の許容差が±0.2mmに
設定（模擬管板にて調整している）されており、これは
ロボット装置１０の位置決め精度より精密であり被補修
管３から離れた伝熱管４にクランプシリンダ５を固定し
にくい。また仮に固定されても溶接工具２は管板１１に
対して傾いて固定されている確率が大きく溶接トーチ６
の先端が補修用スリーブ７の外周上と一致しない。3. As shown in FIG. 8, even if the tool mounting plate 9 is attached to the welding tool 2 and mounted on the robot apparatus 10 so as to guide the welding tool 2 to the repaired pipe 3, the welding tool 2 is clamped. The tolerance of the distance between the cylinder 5 and the welding torch 6 is set to ± 0.2 mm (adjusted by a simulated tube sheet), which is more precise than the positioning accuracy of the robot device 10 and is separated from the repaired tube 3. It is difficult to fix the clamp cylinder 5 to the heat transfer tube 4. Even if the welding tool 2 is temporarily fixed, the welding tool 2 has a high probability that the welding tool 2 is inclined and fixed with respect to the tube sheet 11.
Does not coincide with the outer circumference of the repair sleeve 7.
本考案は上記不具合を解消するためになされたもので、
溶接トーチの孔への位置決め固定が精度良く行なえると
共に、溶接トーチの溶接回転に伴うトーチケーブルのね
じれを防止した溶接装置を提供し、もって熱交換器管板
部の溶接作業能率向上を図ることを目的とする。The present invention has been made to solve the above problems,
A welding device that can position and fix the welding torch in the hole with high accuracy and prevents the torch cable from twisting due to welding rotation of the welding torch, thereby improving the welding work efficiency of the heat exchanger tube sheet part. With the goal.
〈問題を解決するための手段〉 上記目的を達成するための本考案の構成は、熱交換器の
損傷熱交換管の端部と該損傷熱交換管に挿入した円筒ス
リーブとの円周シール溶接を行なう溶接装置であって、
前記損傷熱交換管から離れた健全な熱交換管に挿入され
て膨脹することにより固定される複数の第一クランプ部
を有すると共に水平方向に延出した保持部を有する取付
台と、該取付台の保持部に水平方向に相対変位可能に設
けられ前記損傷熱交換管に隣接する別の健全な熱交換管
に挿入されて膨脹することにより水平方向の位置決めを
行なう第二クランプ部を有する位置決め調整機構と、前
記取付台の保持部の上面に摺動自在に接合する保持板を
備え前記位置決め調整機構によって水平方向に移動され
て水平位置が調整される溶接工具とからなり、該溶接工
具は、鉛直軸回りに回転自在に支持される回転ドラム
と、該回転ドラムに回転自在に支持され回転ドラムの回
転により前記円筒スリーブの端部の円周シール溶接を行
なう溶接トーチを備えたことを特徴とする。<Means for Solving the Problem> The structure of the present invention for achieving the above-mentioned object is to perform circumferential seal welding between an end of a damaged heat exchange tube of a heat exchanger and a cylindrical sleeve inserted in the damaged heat exchange tube. A welding device for performing
A mounting base having a plurality of first clamp portions which are fixed by being expanded by being inserted into a sound heat exchange pipe separated from the damaged heat exchange pipe and also having a horizontally extending holding portion, and the mounting base. Positioning adjustment having a second clamp portion which is provided in the holding portion of the holder so as to be relatively displaceable in the horizontal direction, and which is inserted into another sound heat exchange tube adjacent to the damaged heat exchange tube and expands to perform horizontal positioning. The welding tool is provided with a mechanism and a holding plate slidably joined to the upper surface of the holding portion of the mounting base, and the welding tool is moved in the horizontal direction by the positioning adjustment mechanism to adjust the horizontal position. A rotary drum rotatably supported around a vertical axis, and a welding torch rotatably supported by the rotary drum to perform circumferential seal welding of the end portion of the cylindrical sleeve by rotation of the rotary drum. Characterized in that was.
〈作用〉 取付台の複数の第一クランプ部を健全な熱交換管にクラ
ンプして管板部に取付台を固定し、損傷熱交換管に隣接
する健全な熱交換管に第二クランプ部をクランプし、保
持部に対し保持板を摺動させて溶接工具の水平位置を調
整位置決めし、回転ドラムの回転により円筒スリーブが
挿入された損傷熱交換管の端部の円周まわりの溶接を行
ない、溶接トーチの溶接回転に伴うトーチケーブルのね
じれは回転ドラムに対する溶接トーチの回転により相殺
される。<Action> The first clamps of the mounting base are clamped to a sound heat exchange tube, the mounting base is fixed to the tube plate, and the second clamp is attached to the sound heat exchange pipe adjacent to the damaged heat exchange pipe. Clamp, slide the holding plate against the holding part to adjust the horizontal position of the welding tool and position it, and weld the circumference of the end of the damaged heat exchange tube with the cylindrical sleeve inserted by the rotation of the rotating drum. The twist of the torch cable due to the welding rotation of the welding torch is offset by the rotation of the welding torch with respect to the rotating drum.
〈実施例〉 第１図には本考案の一実施例に係る溶接装置の展開構
成、第２図にはその位置決めシリンダの断面側面、第３
図には第２図中のIII矢視、第４図には第１図の中の溶
接トーチ支持部の断面、第５図には第１図で示した溶接
工具の外観を表わす斜視を示してある。尚、従来と同一
部材には同一符号を付して重複する説明は省略する。<Embodiment> FIG. 1 is a developed configuration of a welding apparatus according to an embodiment of the present invention, FIG. 2 is a sectional side view of a positioning cylinder thereof, and FIG.
FIG. 5 shows a view taken along the arrow III in FIG. 2, FIG. 4 shows a cross section of the welding torch support portion in FIG. 1, and FIG. 5 shows a perspective view showing the appearance of the welding tool shown in FIG. There is. It should be noted that the same members as those of the related art will be denoted by the same reference numerals and redundant description will be omitted.
第１図に示すように、取付台としての工具取付台９には
第一クランプ部としてのクランプシリンダ５が設けら
れ、クランプシリンダ５は、損傷熱交換管としての被補
修管３から離れた健全な熱交換管としての固定用伝熱管
４に挿入部５ａが挿入されて膨脹し固定される。第一ク
ランプ部５は対称位置に２箇所設けられ、第５図に示す
ように、挿入部５ａは対称位置の固定用伝熱管４に固定
される。工具取付台９には水平方向に延出する保持部９
ａが設けられ、保持部９ａには位置決め調整機構５１が
設けられている。As shown in FIG. 1, the tool mounting base 9 serving as a mounting base is provided with a clamp cylinder 5 serving as a first clamp portion, and the clamp cylinder 5 is a sound source separated from the repaired pipe 3 serving as a damaged heat exchange pipe. The insertion portion 5a is inserted into the fixing heat transfer tube 4 serving as another heat exchange tube, and is expanded and fixed. The first clamp portion 5 is provided at two symmetrical positions, and the insertion portion 5a is fixed to the fixing heat transfer tube 4 at the symmetrical position, as shown in FIG. The tool mount 9 has a holding portion 9 extending in the horizontal direction.
a is provided, and the holding portion 9a is provided with a positioning adjustment mechanism 51.
即ち、保持部９ａにはピン１５を介して水平方向に動き
代ｄを持って位置決めシリンダ取付台１６が支持され、
位置決めシリンダ取付台１６には保持部９ａを貫通する
台形ネジ棒１７及びスライド軸１８が設けられている。
位置決めシリンダ取付台には第二クランプ部としての位
置決めシリンダ１９が設けられ、位置決めシリンダ１９
は被補修管３に隣接する健全な熱交換管としての伝熱管
２３に挿入されて膨脹する。これにより、工具取付台９
に対し位置決めシリンダ取付台１６が水平方向に移動
し、被補修管３に対する位置決めシリンダ取付台１６の
水平位置が調整される。位置決めシリンダ取付台１６に
は昇降モータ２０が設けられ、昇降モータ２０により台
形ネジ棒１７が駆動される。That is, the positioning cylinder mount 16 is supported on the holding portion 9a through the pin 15 with a horizontal movement allowance d.
The positioning cylinder mount 16 is provided with a trapezoidal screw rod 17 and a slide shaft 18 which penetrate the holding portion 9a.
The positioning cylinder mounting base is provided with a positioning cylinder 19 as a second clamp portion.
Is expanded by being inserted into the heat transfer tube 23 as a sound heat exchange tube adjacent to the repaired tube 3. This allows the tool mount 9
On the other hand, the positioning cylinder mount 16 moves in the horizontal direction, and the horizontal position of the positioning cylinder mount 16 with respect to the repaired pipe 3 is adjusted. A lifting motor 20 is provided on the positioning cylinder mount 16, and the trapezoidal screw rod 17 is driven by the lifting motor 20.
工具取付台９の保持部９ａの上面には溶接工具２の保持
板２ａが摺動自在に接合し、保持板２ａはスライド軸１
８に取付けられると共に、台形ネジ棒１７に螺合してい
る。つまり、溶接工具２は位置決めシリンダ取付台１６
と一緒に被補修管３に対して水平方向に位置決めされる
と共に、昇降モータ２０の駆動により保持板２ａを介し
て昇降する。The holding plate 2a of the welding tool 2 is slidably joined to the upper surface of the holding portion 9a of the tool mount 9, and the holding plate 2a is the slide shaft 1
8 and is screwed into the trapezoidal screw rod 17. That is, the welding tool 2 is installed on the positioning cylinder mount 16
Is positioned horizontally with respect to the pipe 3 to be repaired, and is moved up and down through the holding plate 2a by driving the elevating motor 20.
溶接工具２には、溶接トーチ６を内蔵したドラム２１及
びドラム回転用モータ２２が設けられ、溶接トーチ６の
先端が円筒スリーブとしての補修用スリーブ７の周囲を
回転して溶接できるようになっている。溶接工具２の昇
降動作及びドラム２１の回転動作機構は従来のものと同
じである。The welding tool 2 is provided with a drum 21 having a built-in welding torch 6 and a drum rotation motor 22 so that the tip of the welding torch 6 can rotate around a repair sleeve 7 as a cylindrical sleeve for welding. There is. The raising / lowering operation of the welding tool 2 and the rotating operation mechanism of the drum 21 are the same as the conventional ones.
溶接トーチ６の位置決めは次の要領で行われる。即ち第
１図に示す様に、被補修管３付近の数本（第１図では二
本示してあるが、実用的には四本）の伝熱管２３を対象
にして溶接トーチ６との正確な距離における位置決めシ
リンダ取付台１６上に位置決めシリンダ１９を取付け
る。位置決めシリンダ取付台１６は、工具取付台９に対
してピン１５に若干の動き代ｄをもたせて取付けられて
おり、接触面にはテフロンなどの滑り易い材料のプレー
ト２４が貼付してある。従って、固定用伝熱管４にクラ
ンプシリンダ５を固定する際、伝熱管２３の位置に多少
の誤差があっても位置決めシリンダ１９の先端テーパ部
によって調芯作用を行い、ピン１５の動き代ｄによって
位置決めシリンダ取付台１６が移動して位置決めシリン
ダ１９は伝熱管２３内に挿入される。この位置で位置決
めシリンダ１９を伝熱管２３に固定すれば溶接トーチ６
の先端は正確に補修スリーブ７の円周上に対向した位置
で支持される。Positioning of the welding torch 6 is performed as follows. That is, as shown in FIG. 1, several heat transfer pipes 23 near the pipe 3 to be repaired (two in FIG. 1, but in practice, four heat transfer pipes 23) are accurately aligned with the welding torch 6. The positioning cylinder 19 is mounted on the positioning cylinder mount 16 at various distances. The positioning cylinder mounting base 16 is mounted on the tool mounting base 9 with a slight movement allowance d on the pin 15, and a plate 24 made of a slippery material such as Teflon is attached to the contact surface. Therefore, when fixing the clamp cylinder 5 to the fixing heat transfer tube 4, even if there is some error in the position of the heat transfer tube 23, the tip end tapered portion of the positioning cylinder 19 performs the centering action, and the movement allowance d of the pin 15 causes The positioning cylinder mount 16 moves and the positioning cylinder 19 is inserted into the heat transfer tube 23. If the positioning cylinder 19 is fixed to the heat transfer tube 23 at this position, the welding torch 6
The tip of is accurately supported on the circumference of the repair sleeve 7 at a position opposite to it.
第２図は位置決めシリンダ１９の説明図を示す。位置決
めシリンダ１９にはスタビライザ２５（可撓式固定装
置）が組込まれ、スタビライザ２５の先端は円錐状にな
っていて且つ第３図に示す様に軸方向に分割してあるの
で可撓性があり、多少伝熱管２３の中心線とズレていて
も挿入し得る。スタビライザ２５の下部はシリンダ状に
なっていてピストン２６が内部を摺動する様になってい
る。ピストン２６の先端は円錐状になっていて、ピスト
ン２６が上昇するとスタビライザ２５の先端が開いて固
定用の伝熱管２３の内壁に位置決めシリンダ１９が固定
される。ピストン２６の下部軸端は常時は位置決めシリ
ンダ１９の底に位置しており、導圧孔ｂに給気されると
ピストン２６が上昇して固定動作を行ない、導圧孔ａに
給気されるとピストン２６が下降して開放される。スタ
ビライザ２５は抑え板２７により上限位置が制限され
る。スタビライザ２５の内部にはピストン２６との間に
バネ２８があり、このバネ２８は伝熱管２３がプラグさ
れている場合、スタビライザ２５が引込む為のものでス
タビライザ２５が引込んだ場合はスタビライザ２５の下
部が給気孔ｂを塞ぎ給気が遮断されて、ピストン２６が
上昇しない様になっている。FIG. 2 shows an explanatory view of the positioning cylinder 19. A stabilizer 25 (flexible fixing device) is incorporated in the positioning cylinder 19, and the tip of the stabilizer 25 has a conical shape and is divided in the axial direction as shown in FIG. However, it can be inserted even if it is slightly deviated from the center line of the heat transfer tube 23. The lower portion of the stabilizer 25 has a cylindrical shape so that the piston 26 can slide inside. The tip of the piston 26 has a conical shape, and when the piston 26 rises, the tip of the stabilizer 25 opens and the positioning cylinder 19 is fixed to the inner wall of the heat transfer tube 23 for fixing. The lower shaft end of the piston 26 is normally located at the bottom of the positioning cylinder 19, and when air is supplied to the pressure guiding hole b, the piston 26 rises to perform a fixing operation and is supplied to the pressure guiding hole a. Then the piston 26 descends and is released. The upper limit position of the stabilizer 25 is limited by the holding plate 27. Inside the stabilizer 25, there is a spring 28 between the stabilizer 26 and the piston 26. This spring 28 is for retracting the stabilizer 25 when the heat transfer tube 23 is plugged, and when the stabilizer 25 retracts, the spring 28 The lower part closes the air supply hole b and shuts off the air supply, so that the piston 26 is prevented from rising.
第４図は溶接トーチ６の支持状態を示す図である。溶接
トーチ６は、ドラム２１内にニードルベアリング２９に
よって支持されている。ドラム２１には歯車３０が固定
され、溶接工具２に固定されたドラム回転用モータ２２
によって回転される。溶接トーチ６の中心線X2は伝熱管
中心線X1を中心にしてスリーブ７の円周上をトレースす
る。この時溶接トーチ６はニードルベアリング２９によ
って支持されている為、ドラム２１が回転しても自身の
中心線X2の回りには回転しない。従って従来の様にトー
チケーブル８がねじれることはない。FIG. 4 is a view showing a supporting state of the welding torch 6. The welding torch 6 is supported inside the drum 21 by a needle bearing 29. A gear 30 is fixed to the drum 21, and a drum rotation motor 22 is fixed to the welding tool 2.
Is rotated by. The center line X 2 of the welding torch 6 traces the circumference of the sleeve 7 around the center line X 1 of the heat transfer tube. At this time, since the welding torch 6 is supported by the needle bearing 29, even if the drum 21 rotates, it does not rotate around its own center line X 2 . Therefore, unlike the conventional case, the torch cable 8 is not twisted.
第５図は本溶接工具全体の外観図を示す。本図は実際に
実施する時の各部分の配置例を示す。従って上述した溶
接工具によると、工具取付台に対して調芯機構を有する
複数のスタビライザ２５を備えた位置決めシリンダ１９
により、溶接トーチ６の位置決めが正確に行え、また、
被補修管に接近した位置で工具を固定する為溶接トーチ
６の操作がより安定になる。更に溶接トーチ６がドラム
２１に対し回転出来る為、溶接作業でドラム２１が回転
してもトーチケーブル８がねじれない。FIG. 5 shows an external view of the entire welding tool. This drawing shows an example of the arrangement of each part when actually implemented. Therefore, according to the welding tool described above, the positioning cylinder 19 including the plurality of stabilizers 25 having the aligning mechanism with respect to the tool mount is provided.
With this, the welding torch 6 can be accurately positioned, and
Since the tool is fixed at a position close to the pipe to be repaired, the operation of the welding torch 6 becomes more stable. Further, since the welding torch 6 can rotate with respect to the drum 21, the torch cable 8 will not be twisted even if the drum 21 rotates during welding work.
〈考案の効果〉 本考案の熱交換器管端部の溶接装置は、溶接トーチの孔
への位置決め固定が精度良く行なえ極めて高い精度で円
周シール溶接用軸心合せが行なえると共に、溶接トーチ
の溶接回転に伴うトーチケーブルのねじれを防止するこ
とができる。その結果、熱交換器管板部の溶接作業能率
向上が図れる。<Effect of the device> The heat exchanger tube end welding device of the present invention can position and fix the welding torch in the hole with high accuracy, and can perform axial alignment for circumferential seal welding with extremely high accuracy, and the welding torch. It is possible to prevent the torch cable from being twisted due to the welding rotation of. As a result, the welding work efficiency of the heat exchanger tube sheet portion can be improved.
第１図は本考案の一実施例に係る溶接装置の展開構成
図、第２図はその位置決めシリンダの断面側面図、第３
図は第２図中のIII矢視図、第４図は第１図中の溶接ト
ーチ支持部の断面図、第５図は第１図で示した溶接工具
の外観を表わす斜視図、第６図は蒸気発生器水室内にお
ける溶接工具の取扱説明図、第７図は従来の溶接工具の
固定を説明する要部断面図、第８図は蒸気発生器水室内
におけるロボット装置による溶接工具の取扱説明図であ
る。 図面中、 １は水室、 ２は溶接工具、 ２ａは保持板、 ３は被補修管、 ４は固定用伝熱管、 ５はクランプシリンダ、 ６は溶接トーチ、 ７はスリーブ、 ８はトーチケーブル、 ９は工具取付台、 ９ａは保持部、 １６は位置決めシリンダ取付台、 １９は位置決めシリンダ ２１はドラム、 ２５はスタビライザ、 ２９はニードルベアリング、 ５１は位置決め調整機構である。FIG. 1 is a development configuration diagram of a welding apparatus according to an embodiment of the present invention, FIG. 2 is a sectional side view of a positioning cylinder thereof, and FIG.
FIG. 4 is a view taken along the arrow III in FIG. 2, FIG. 4 is a sectional view of the welding torch support portion in FIG. 1, FIG. 5 is a perspective view showing the appearance of the welding tool shown in FIG. The figure shows the handling of welding tools in the steam generator water chamber, Fig. 7 is a cross-sectional view of the main parts explaining the fixing of conventional welding tools, and Fig. 8 is the handling of welding tools by a robot device in the steam generator water chamber. FIG. In the drawings, 1 is a water chamber, 2 is a welding tool, 2a is a holding plate, 3 is a repaired tube, 4 is a heat transfer tube for fixing, 5 is a clamp cylinder, 6 is a welding torch, 7 is a sleeve, 8 is a torch cable, 9 is a tool mount, 9a is a holding part, 16 is a positioning cylinder mount, 19 is a positioning cylinder 21, a drum is a 25, a stabilizer is a 29, a needle bearing is a 29, and a positioning adjusting mechanism is a 51.
───────────────────────────────────────────────────── フロントページの続き (72)考案者 古谷 茂 兵庫県神戸市兵庫区和田宮通７丁目１番14 号 西菱エンジニアリング株式会社内 (56)参考文献 実開 昭52−55922（ＪＰ，Ｕ) 実公 昭54−5774（ＪＰ，Ｙ２) 実公 昭60−31026（ＪＰ，Ｙ２) ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shigeru Furuya 7-1-14 Wadamiyadori, Hyogo-ku, Kobe-shi, Hyogo Within Nishiryo Engineering Co., Ltd. (56) References: 52-55922 (JP, U) Actual KO 54-5774 (JP, Y2) ACT 60-31026 (JP, Y2)
Claims (1)
交換管に挿入した円筒スリーブとの円周シール溶接を行
なう溶接装置であって、前記損傷熱交換管から離れた健
全な熱交換管に挿入されて膨脹することにより固定され
る複数の第一クランプ部を有すると共に水平方向に延出
した保持部を有する取付台と、該取付台の保持部に水平
方向に相対変位可能に設けられ前記損傷熱交換管に隣接
する別の健全な熱交換管に挿入されて膨脹することによ
り水平方向の位置決めを行なう第二クランプ部を有する
位置決め調整機構と、前記取付台の保持部の上面に摺動
自在に接合する保持板を備え前記位置決め調整機構によ
って水平方向に移動されて水平位置が調整される溶接工
具とからなり、該溶接工具は、鉛直軸回りに回転自在に
支持される回転ドラムと、該回転ドラムに回転自在に支
持され回転ドラムの回転により前記円筒スリーブの端部
の円周シール溶接を行なう溶接トーチを備えたことを特
徴とする熱交換器管端部の溶接装置。1. A welding device for performing circumferential seal welding between an end of a damaged heat exchange tube of a heat exchanger and a cylindrical sleeve inserted in the damaged heat exchange tube, the sounding apparatus being separated from the damaged heat exchange tube. Attachment base having a plurality of first clamp portions fixed by being expanded by being inserted into a heat exchange tube and having a holding portion extending in the horizontal direction, and a relative displacement in the horizontal direction with respect to the holding portion of the attachment base. A positioning adjustment mechanism having a second clamp part that is horizontally provided by being inserted into another sound heat exchange pipe adjacent to the damaged heat exchange pipe and expanding the same; and a holding part of the mounting base. A welding tool that has a holding plate slidably joined to the upper surface thereof and is horizontally moved by the positioning adjustment mechanism to adjust the horizontal position, and the welding tool is rotatably supported around a vertical axis. Rotation Arm and rotatably supported by the welding apparatus of the heat exchanger tube end, characterized in that it comprises a welding torch in accordance with the rotation of the rotary drum performs a circumferential seal weld of the end of the cylindrical sleeve to the rotary drum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986115975U JPH0614934Y2 (en) | 1986-07-30 | 1986-07-30 | Welding device for heat exchanger tube end |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986115975U JPH0614934Y2 (en) | 1986-07-30 | 1986-07-30 | Welding device for heat exchanger tube end |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6325262U JPS6325262U (en) | 1988-02-19 |
| JPH0614934Y2 true JPH0614934Y2 (en) | 1994-04-20 |
Family
ID=31000137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986115975U Expired - Lifetime JPH0614934Y2 (en) | 1986-07-30 | 1986-07-30 | Welding device for heat exchanger tube end |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0614934Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN121104473B (en) * | 2025-10-16 | 2026-04-21 | 茂名市鸿信精细化工有限公司 | A heat exchanger welding device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5255922U (en) * | 1975-10-15 | 1977-04-22 | ||
| JPS5643957Y2 (en) * | 1977-06-15 | 1981-10-14 | ||
| JPS6031026U (en) * | 1983-08-08 | 1985-03-02 | 矢崎総業株式会社 | Switch circuits for automotive electronic equipment |
| JPS61222685A (en) * | 1985-03-28 | 1986-10-03 | Shinko Sangyo Kk | Welding equipment of pipe and pipe plate |
-
1986
- 1986-07-30 JP JP1986115975U patent/JPH0614934Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6325262U (en) | 1988-02-19 |
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