JPS58143103A - Manufacturing method of turbine nozzle diaphragm - Google Patents
Manufacturing method of turbine nozzle diaphragmInfo
- Publication number
- JPS58143103A JPS58143103A JP57026627A JP2662782A JPS58143103A JP S58143103 A JPS58143103 A JP S58143103A JP 57026627 A JP57026627 A JP 57026627A JP 2662782 A JP2662782 A JP 2662782A JP S58143103 A JPS58143103 A JP S58143103A
- Authority
- JP
- Japan
- Prior art keywords
- nozzle
- outer ring
- ring
- inner ring
- groove
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
- B23K37/0443—Jigs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/001—Turbines
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の技留分野〕
′ 本尭明は蒸気タービン等におけるノズルダイヤプラ
ムを電子ビーム溶接によって組立てるタービンノズルダ
イヤフラムの製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of the Invention] This invention relates to a method for manufacturing a turbine nozzle diaphragm for assembling a nozzle diaphragm in a steam turbine or the like by electron beam welding.
蒸気タービンやガスタービンにおいて各段落の動翼の前
面に配置されるノズルダイヤプラムは多数のノズル翼を
ノズル内輪とノズル外輪に溶接して製造されることが多
い。In steam turbines and gas turbines, nozzle diaphragms arranged in front of rotor blades in each stage are often manufactured by welding a large number of nozzle blades to a nozzle inner ring and a nozzle outer ring.
従来の製造方法を第１図および第２図を参照して説明す
ると、先ず、多数のノズル翼１の両端を、それらの端藺
形状に會わせて孔明は加工を行なっｔ内輪側および外輪
側のスベーｔ２．６のノズル興挿入孔４．５に挿入し、
くぼみ部をシール溶接６により平坦化してノズル翼１と
スペーｔ２．６を組立てる〇
次に、８２図に示すように、上記のスペーサ２゜３とノ
ズル内輪７およびノズル外輪８と管、それらの聞に１間
が生じないように組合わせ、それらの接合面に沿って、
ノズルの入口端側（ｊ１２１１の下側）及び出口端側（
第２図の上側）から、所定の濤込みが得られるように電
子ビーム１１１ｍ１？、１０゜１１．１２を行なう。こ
のような電子ビーム溶接は、ＩＩＩＩＩ変形が少ない上
、溶接適度が早くて能率的であり、ｔｔスペーサーとし
てフェライト系ステンレス鋼を用い、ノズル内外輪材と
して軟鋼や低合金鋼などを用いる場合のようＫｍ合−手
が異種金属の組合せとなっても、溶接割れを起こすこと
もなく溶接できる利点を有しており、広く採用されてい
る０
〔背景技術の問題点〕
しかしながら、上記しｔ従来方法においては、スペー？
−２，５とノズル翼１とは嵌合部をシールＳ＊によって
結合されているため、連接個所が多くなり、スペーサー
に捩れた反りあるいは波打ちなどの溶接変形が生じやす
い。The conventional manufacturing method will be explained with reference to FIGS. 1 and 2. First, Komei machined both ends of a large number of nozzle blades 1 so that they fit into the shape of their edges. Insert into the nozzle insertion hole 4.5 of T2.6,
The recessed portion is flattened by seal welding 6 and the nozzle blade 1 and spacer 2.6 are assembled.Next, as shown in Figure 82, the spacer 2. Combine them so that there is no gap between them, and along their joint surfaces,
The inlet end side of the nozzle (lower side of j1211) and the outlet end side (
From the upper side of Fig. 2), the electron beam 111m1? , 10°11.12. This type of electron beam welding is efficient, with little deformation and rapid welding, and is similar to the case where ferritic stainless steel is used as the TT spacer and mild steel or low alloy steel is used as the nozzle inner and outer ring materials. The Km joint has the advantage of being able to weld dissimilar metals without causing weld cracks, and has been widely adopted. In the case of space?
-2, 5 and the nozzle blade 1 are connected at their fitting portions by the seal S*, so there are many joints, and welding deformation such as twisted warping or waving is likely to occur in the spacer.
これらの変形の矯正や修正加工には多くの工数を必要と
するＯ
ｔｅノズル真とスペーサの電子ビーム溶接に際しては、
接合面の間隙が＊＊＊部の品質に影響を及ぼし、間隙が
大暑いと溶接落ちやビードの凹みなどの溶接欠陥を生じ
るため、間隙は通常０．２ Ｗ以下にする必要がある。Correcting and correcting these deformations requires a lot of man-hours, so when electron beam welding the nozzle stem and spacer,
The gap between the joint surfaces affects the quality of the *** part, and if the gap is too hot, welding defects such as dropped welds and bead dents will occur, so the gap should normally be 0.2 W or less.
そのため、ワークを強固で拘束力の大きい溶接治具で固
定してから電子ビーム溶接をする必要があり、ｔた溶接
はノズルの蒸気入口側と出口側の両側から行なわれるｔ
めに、治工具のＩｉｌ取りや溶接作業に多くの時間と工
数を資すという不都合がある。Therefore, it is necessary to fix the workpiece with a strong welding jig with a large binding force before performing electron beam welding, and welding is performed from both the steam inlet and outlet sides of the nozzle.
However, there is an inconvenience in that a lot of time and man-hours are spent on cleaning jigs and tools and welding work.
本発明は、上記の事情Ｋｉｌみてなされｔもので、その
目的とするところは、段４ｉ！りおよびｆ＃接待時間短
縮でき、しかも品質の良好なタービンノズルダイヤ７２
五を能率よく組立てることのできるノズルダイヤフラム
の製造方法を提供することＫあるＯ
〔発明の概要〕
本発明のタービンノズルダイヤフラムの製造方法は、一
端がノズル内輪またはノズル外輪の馬面に連設された多
数のノズル翼の他端側に設けｔ鐸を１ノズル外翰まｔは
ノズル内輪の周面に設けｔ溝内に収納し、前記ノズル外
輪ｔｅはノズル内輪の一方の側面から電子ビーム溶接を
行なって、前記ノズル外輪また。はノズル内輪とその溝
内に収納されｔ前記鍔とを結合することを特徴とすゐ屯
のである＠
〔発−の実施例〕
以下、ＪＩ３図ないし第６図を、参照して本発明の詳細
な説明する。The present invention has been made in view of the above-mentioned circumstances, and its purpose is to achieve the following: Turbine nozzle diagram 72 with good quality and shorten reception time
To provide a method for manufacturing a nozzle diaphragm that can efficiently assemble a turbine nozzle diaphragm. A number of nozzle blades are provided on the other end side of one nozzle outer ring t is provided on the circumferential surface of the nozzle inner ring and housed in the t groove, and the nozzle outer ring te is subjected to electron beam welding from one side of the nozzle inner ring. Then, remove the nozzle outer ring. is characterized in that it connects the inner ring of the nozzle and the flange that is housed in its groove. Detailed explanation.
纂３ｗＡにおいて、ノズル翼１３は電解加工ｆＩＩＩｖ
ｃより、ノズル内輪１４０周面上に突出するよう、一体
的に形成されている。In series 3wA, the nozzle blade 13 is electrolytically processed fIIIv
c, it is integrally formed so as to protrude above the circumferential surface of the nozzle inner ring 140.
これらのノズル翼１３の各外端面には、それらよりもや
や大きな円弧状表面と所定の厚皐を有する鍔１５が設け
られている。Each outer end surface of these nozzle blades 13 is provided with a collar 15 having a slightly larger arcuate surface and a predetermined thickness.
鍔１５は電解加工等によりノズル翼１３と一体に成形し
てもよく、あるいは別体で成形したものをノズル翼１３
の外熾面に電子ビーム溶接等により結合してもよい０
ノズル外輪１６は、第４図に示すように、その内周面圧
、褥１５の長さと厚みに合うような円環状の溝１７ｔ−
形成されている。The flange 15 may be formed integrally with the nozzle blade 13 by electrolytic processing or the like, or it may be formed separately and attached to the nozzle blade 13.
As shown in FIG. 4, the nozzle outer ring 16 has an annular groove 17t that matches its inner circumferential surface pressure and the length and thickness of the rug 15. −
It is formed.
このノズル外輪１６は、第５図に示すように、ノズル真
１３側の鍔１５が溝１７内に収まるようにして、ノズル
内輪１４と同心状に組合わされる。As shown in FIG. 5, this nozzle outer ring 16 is concentrically assembled with the nozzle inner ring 14 so that the collar 15 on the side of the nozzle stem 13 is accommodated in the groove 17.
この場合、濤１７内に収容されｔ鍔１５と隣りの鍔１５
との関に形成されｔ空間には、これらの空間と同形で、
鍔１５と同じ厚さのｙ４整片１８を介挿する。In this case, the t tsuba 15 and the adjacent tsuba 15 are housed in the tsuba 17.
The t-space formed at the junction with is isomorphic to these spaces,
A Y4 straightening piece 18 having the same thickness as the collar 15 is inserted.
これは火工＠において、鍔１５とノズル外輪１６を溶接
した後、収縮によって各ノズル翼のピッチが小さくなる
ことを防止する几めである。This is a measure to prevent the pitch of each nozzle blade from becoming smaller due to contraction after welding the collar 15 and the nozzle outer ring 16 in pyrotechnics.
上述のようにしてノズル内外輪を組合わせｔ後、第６図
に示すように、ノズル蒸気人口１４８（場合によって出
口側からでもよい）のノズル外輪側面から鍔１５と１１
１１１７の接合面に沿って電子ビーム溶１！１９を行な
う。After assembling the inner and outer rings of the nozzle as described above, as shown in FIG.
Electron beam melting 1!19 is performed along the joint surface of 1117.
この場合、４１５および調整片１８の外表面と梼１７の
接合面で十分な深さの溶込みが得られるように電子ビー
ムを制御し、鍔１５、調整片１８およびノズル外輪１６
の三者を一体化する〇このように１本発明においては、
ノズル内輪に連設したノズル翼の外端に鍔を設
け、この鐸を調整片と共にノズル外輪の内周面に設は光
溝内に駅納して電子ビーム５ａｔ−行なうものであるか
ら、従来のように、スペーサに捩れヤ反プ、あるい娘波
打ちなどのＳ＊変形を生ず゛ることがなく、性能のよい
ノズルダイヤフラムが得られ為。In this case, the electron beam is controlled so that a sufficient depth of penetration is obtained at the joint surface of the outer surface of the collar 15 and the adjustment piece 18 and the turret 17, and the electron beam is
In this way, in the present invention, the three parts are integrated.
A flange is provided at the outer end of the nozzle blade connected to the nozzle inner ring, and this collar is installed on the inner peripheral surface of the nozzle outer ring together with an adjustment piece, and the electron beam is emitted by placing the collar in the optical groove. As shown in the figure, a nozzle diaphragm with good performance can be obtained without causing S* deformation such as twisting, curling, or wavering in the spacer.
１７ｔ１１１１やその段取りに要する時間と工数を低減
させることができる・
オた、電子ビームＳ＊では深濤込本が容品に得られるた
め、溶接接合部が内部にある場合でも、外側よ砂ビーム
Ｓ＊を行なうこと罠より良好な濤込みが得られる。It is possible to reduce the time and man-hours required for 17t1111 and its setup.In addition, with electron beam S*, since deep-seam is obtained in the package, even if the welded joint is inside, the sand beam can be removed from the outside. By performing S*, you can get a better sinking effect than with a trap.
なお、以上の説明ではノズル翼をノズル円輪から突出さ
せ、ノズル翼の外端に設は友鍔をノズル外輪に電子ビー
ム溶接する例につき述べたが、本発明はこれに限定され
るものではなく、ノズル外輪からノズル翼を内方に突出
させ、それらの内端に設けｔｆＩ／Ｉｔ−ノズル内輪の
外属面に設けｔ溝内に収容して電子ビーム溶接するよう
にしてもよい。In the above explanation, the nozzle blade is made to protrude from the nozzle ring, and the outer end of the nozzle blade is provided with a tsuba that is electron beam welded to the nozzle outer ring. However, the present invention is not limited to this. Alternatively, the nozzle blades may be made to protrude inward from the nozzle outer ring, provided at their inner ends, and provided on the outer surface of the nozzle inner ring, accommodated in the T groove, and electron beam welded.
上述の如く、本発明においては、ノズル翼に設けた碍管
ノズル外輪まｔはノズル内輪の溝に装着、固定すること
により、位置轡めを行ない、ノズル蒸気入口側あるいは
出口側の１方向より電子ビーム溶接をするものであるか
ら、ｌｌｌ！接や段取りの時間を短縮化でき、能率的な
溶接を行なうことができ、また捩れや反りのないノズル
を備え比ノズルダイヤフラムを簡単な溶接治具で容易に
製造することができる。As described above, in the present invention, the outer ring or t of the insulator nozzle provided on the nozzle blade is installed and fixed in the groove of the inner ring of the nozzle, thereby repositioning the nozzle so that the electrons can be ejected from either the nozzle steam inlet side or the outlet side. Because it involves beam welding, lll! Welding and setup time can be shortened, welding can be performed efficiently, and a ratio nozzle diaphragm with a nozzle that does not twist or warp can be easily manufactured using a simple welding jig.
１１１図と第２図は従来のノズルダイヤフラムの組立方
法を示す説明図、第３図ないし第６図は本発明方法の一
実施例を示すもので、第３ｍは電解加工によってノズル
翼と鐸を設けられ九ノズル内輪の斜視図、第４図はノズ
ル外輪の斜視図、ｍ５１ｇ＋はノズル円輪とノズル外輪
の組合せ状態を示す斜視図、纂６図はノズル外輪と鐸の
一接工薯ｔｍＨするノズルダイヤフラムの縦断面一であ
る。
１．１３・・・ノズル翼、２．６・・・スペーサ、４．
５・・・ノズル具挿入孔、６・・・シール溶饋郁、７．
１４・・・ノズル内輪、８．１６・・・ノズル外輪、９
〜１２．１９・・・電子ビーム溶接、１５・・・鍔、１
７・・・壽、１８・・・調節片。
代理人弁理士 須 山 佐 −
１５
第１図
第３図
第４図
第５図
第６図
ρFig. 111 and Fig. 2 are explanatory diagrams showing the conventional method of assembling a nozzle diaphragm, Figs. Figure 4 is a perspective view of the nozzle outer ring, m51g+ is a perspective view showing the combination of the nozzle circular ring and the nozzle outer ring, and Figure 6 is the one-piece joint between the nozzle outer ring and the bell. This is a longitudinal section of the nozzle diaphragm. 1.13... Nozzle blade, 2.6... Spacer, 4.
5... Nozzle tool insertion hole, 6... Seal melting hole, 7.
14... Nozzle inner ring, 8.16... Nozzle outer ring, 9
~12.19...Electron beam welding, 15...Tsuba, 1
7... Hisashi, 18... Adjustment piece. Representative patent attorney Suyama Sa - 15 Figure 1 Figure 3 Figure 4 Figure 5 Figure 6 ρ
Claims (1)
れた多数のノズル翼の他端側に設けた鍔を、ノズル外輪
１几はノズル内輪の馬面に設けた溝内に収納し、前記ノ
ズル外輪ｔｅはノズル内輪の一方の側面から電子ビーム
溶接を行なって、前記ノズル外輪またはノズル内輪とそ
の溝内に収納された前記鍔とを結合することを特徴とす
ゐタービンノズルダイヤフラムの製造方法・ ２、ノズル外輪まｔはノズル内輪の溝内に収納された鐸
とそれに隣接する鍔の間に調麿片を介挿し、これらの鐸
と調整片を電子ビーム濤ＩＩＫよって前記ノズル外輪ｔ
たはノズル内輪に紬食することを４１１１１とする特許
請求の範ｓ纂１項記−のタービンノズルダイヤフラムの
製造方法。 ３、ノズル翼が電解加工によりノズル内輪または外輪と
一体に形成されていることを特徴とする特許請求の範囲
第１項または纂２項記載のタービンノズルダイヤフラム
の製造方法。 ４、鍔が電解加工によりノズル翼と一体に形成されてい
ることを特徴とする特許請求の範囲第６項に記載のター
ビンノズルダイヤフラムの製造方法。[Scope of Claims] 1. A flange is provided on the other end side of a number of nozzle blades, one end of which is connected to the inside of the nozzle or the circumferential surface of the nozzle outer ring, and one nozzle outer ring is provided on the horse face of the nozzle inner ring. The nozzle outer ring te is housed in a groove, and the nozzle outer ring te is bonded to the nozzle outer ring or the nozzle inner ring and the collar housed in the groove by electron beam welding from one side of the nozzle inner ring. 2. Method for manufacturing a turbine nozzle diaphragm 2. For the nozzle outer ring or t, an adjustment piece is inserted between a ring housed in a groove in the nozzle inner ring and an adjacent collar, and these rings and adjustment pieces are exposed to electron beams. IIK, the nozzle outer ring t
41111. The method for manufacturing a turbine nozzle diaphragm according to claim 1, wherein the inner ring of the nozzle is coated. 3. The method for manufacturing a turbine nozzle diaphragm according to claim 1 or 2, wherein the nozzle blades are formed integrally with the nozzle inner ring or outer ring by electrolytic machining. 4. The method for manufacturing a turbine nozzle diaphragm according to claim 6, wherein the flange is formed integrally with the nozzle blade by electrolytic processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57026627A JPS58143103A (en) | 1982-02-20 | 1982-02-20 | Manufacturing method of turbine nozzle diaphragm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57026627A JPS58143103A (en) | 1982-02-20 | 1982-02-20 | Manufacturing method of turbine nozzle diaphragm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58143103A true JPS58143103A (en) | 1983-08-25 |
Family
ID=12198687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57026627A Pending JPS58143103A (en) | 1982-02-20 | 1982-02-20 | Manufacturing method of turbine nozzle diaphragm |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58143103A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5807074A (en) * | 1995-02-03 | 1998-09-15 | General Electric Co. | Turbine nozzle diaphragm joint |
| JP2007187163A (en) * | 2006-01-13 | 2007-07-26 | General Electric Co <Ge> | Welded nozzle assembly for steam turbine |
| CN108818368A (en) * | 2018-06-20 | 2018-11-16 | 哈尔滨汽轮机厂有限责任公司 | A kind of assembling jig and assembly method for insertion slot type partition |
| CN111408912A (en) * | 2020-05-14 | 2020-07-14 | 中国兵器工业第五九研究所 | Preparation method and clamping tool for small-diameter narrow-gap thin-wall multi-blade component |
| CN116140910A (en) * | 2023-04-21 | 2023-05-23 | 成都和鸿科技股份有限公司 | Welding tool and welding method for guide vane measuring tube and mounting bracket |
-
1982
- 1982-02-20 JP JP57026627A patent/JPS58143103A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5807074A (en) * | 1995-02-03 | 1998-09-15 | General Electric Co. | Turbine nozzle diaphragm joint |
| JP2007187163A (en) * | 2006-01-13 | 2007-07-26 | General Electric Co <Ge> | Welded nozzle assembly for steam turbine |
| CN108818368A (en) * | 2018-06-20 | 2018-11-16 | 哈尔滨汽轮机厂有限责任公司 | A kind of assembling jig and assembly method for insertion slot type partition |
| CN108818368B (en) * | 2018-06-20 | 2021-01-15 | 哈尔滨汽轮机厂有限责任公司 | Assembling clamp and assembling method for slot type partition plate |
| CN111408912A (en) * | 2020-05-14 | 2020-07-14 | 中国兵器工业第五九研究所 | Preparation method and clamping tool for small-diameter narrow-gap thin-wall multi-blade component |
| CN111408912B (en) * | 2020-05-14 | 2021-08-20 | 中国兵器工业第五九研究所 | Preparation method and clamping tool for small-diameter narrow-gap thin-wall multi-blade component |
| CN116140910A (en) * | 2023-04-21 | 2023-05-23 | 成都和鸿科技股份有限公司 | Welding tool and welding method for guide vane measuring tube and mounting bracket |
| CN116140910B (en) * | 2023-04-21 | 2023-07-07 | 成都和鸿科技股份有限公司 | Welding tool and welding method for guide vane measuring tube and mounting bracket |
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