JPS6149510B2 - - Google Patents
Info
- Publication number
- JPS6149510B2 JPS6149510B2 JP54028956A JP2895679A JPS6149510B2 JP S6149510 B2 JPS6149510 B2 JP S6149510B2 JP 54028956 A JP54028956 A JP 54028956A JP 2895679 A JP2895679 A JP 2895679A JP S6149510 B2 JPS6149510 B2 JP S6149510B2
- Authority
- JP
- Japan
- Prior art keywords
- runner
- divided
- outer ring
- crown
- pass
- 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
- 238000005266 casting Methods 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Description
【発明の詳細な説明】
本発明はフランシス水車またはポンプ水車のラ
ンナ製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a runner for a Francis turbine or a pump turbine.
近年水力機械の大容量化に伴ない、その心臓部
ともいえるランナの製造方法は、水力発電所の一
基当りの発電容量を決める重要な要素となりつつ
ある。すなわち、大型ランナを一体鋳造で製作す
る場合、ランナの大きさは、鋳鋼メーカーの鋳造
能力に左右される。また鋳物がもつ欠陥、例えば
引巣、割れおよびシユリンケージが発生しやす
く、高品質のランナを製造するには、より高度の
技術が必要とされている。 In recent years, as the capacity of hydraulic machines has increased, the manufacturing method of the runner, which is the heart of the machine, is becoming an important factor in determining the power generation capacity of each hydroelectric power plant. That is, when manufacturing a large runner by integral casting, the size of the runner depends on the casting ability of the steel casting manufacturer. In addition, castings are prone to defects such as cavities, cracks, and shrinkage, and more advanced technology is required to manufacture high-quality runners.
本発明は上記した点に鑑み、ランナ製造上の欠
点を補い、大型であつても高品質で、しかも低価
格なランナを製造する方法を提供することを目的
とする。 In view of the above-mentioned points, it is an object of the present invention to provide a method of manufacturing a runner of high quality and low cost even if it is large, by compensating for the drawbacks in runner manufacturing.
以下添付面図を参照して本発明の一実施例につ
いて説明する。第１図ａは一般的なフランシス型
ランナの断面図で、同図ｂはそのランナ斜視図で
あつて、１はランナクラウン、２は複数枚を有す
るランナ羽根、３はランナバンドを示している。 An embodiment of the present invention will be described below with reference to the attached drawings. Figure 1a is a cross-sectional view of a general Francis type runner, and Figure 1b is a perspective view of the runner, in which 1 is a runner crown, 2 is a runner blade having a plurality of blades, and 3 is a runner band. .
しかして、このような構成のランナを製造する
場合、まずランナクラウン１を、第２図ａに示す
ように、ランナ羽根２部を通らないような分割線
ｅで内輪４と外輪５に分割し、かつその外輪５を
ランナクラウン１とランナ羽根２との接続部ｇを
通らない分割線ｆで等分割し、さらにランナバン
ド３を第２図ｂに示すように、図中破線ｃで示し
たランナバンド３とランナ羽根２との接続部を通
らない分割線ｄで等分割する。このようにランナ
クラウン１の内輪４と、ランナ羽根２を一枚また
は複数枚有するランナクラウン１の外輪とランナ
バンド３との分割片からなるランナ分割片をそれ
ぞれ鋳造し、流水部を整形した後に各分割片の分
割面を相互に溶接にて結合して一体に形成せしめ
る。 Therefore, when manufacturing a runner with such a configuration, first the runner crown 1 is divided into an inner ring 4 and an outer ring 5 by a dividing line e that does not pass through the runner blade 2, as shown in Fig. 2a. , and the outer ring 5 is equally divided by a dividing line f that does not pass through the connection g between the runner crown 1 and the runner blade 2, and the runner band 3 is shown by the broken line c in the figure as shown in FIG. 2b. It is equally divided by a dividing line d that does not pass through the connection between the runner band 3 and the runner blade 2. In this way, after casting the inner ring 4 of the runner crown 1, the outer ring of the runner crown 1 having one or more runner blades 2, and the runner band 3, and shaping the water flow part, The divided surfaces of each divided piece are joined together by welding to form an integral piece.
以上説明したように、ランナ羽根一枚または複
数枚を有するランナクラウンの外輪とランナバン
ド分割片と、ランナクラウンの内輪から成るラン
ナ分割片を鋳造し、流水部を整形した後に各分割
片の分割面を相互に溶接にて結合して、一体に形
成することによつて、大型ランナであつても分割
片として多数鋳造するのであるから、鋳物の品質
は数段の向上が期待でき、ランナの大きさが鋳鋼
メーカーの鋳造能力に左右されることがなくな
る。また分割されたランナ分割片は、小型軽量で
あるためランナ羽根の整形が容易で、一体鋳造の
場合不可能であつた数値制御を備えた加工機械
（NC機）による羽根形状、流水部形状等の加工が
可能となり、従来行なわれていた手作業によるグ
ラインダ整形が不要となる。またランナクラウン
１を内輪４と外輪５とに分割する方法で製造する
ことから、クラウン内周部が厚肉構造であつて
も、溶接による割れ、変形等を未然に防止するこ
とができ、安価で優れたランナを得ることができ
る等の効果を奏する。 As explained above, the runner segments consisting of the outer ring of the runner crown having one or more runner blades, the runner band segment, and the inner ring of the runner crown are cast, and after shaping the water flow area, each segment is divided. By welding the surfaces together and forming one piece, even large runners are cast in large numbers as separate pieces, so the quality of the casting can be expected to be improved by several steps, and the quality of the runner can be improved by several steps. The size no longer depends on the casting capacity of the steel casting manufacturer. In addition, since the divided runner pieces are small and lightweight, it is easy to shape the runner blades, and the shape of the blades and water flow part can be adjusted using a processing machine (NC machine) equipped with numerical control, which was impossible with integral casting. processing, and the manual grinding process that was conventionally performed is no longer necessary. Furthermore, since the runner crown 1 is manufactured by dividing it into an inner ring 4 and an outer ring 5, even if the inner peripheral part of the crown has a thick wall structure, it is possible to prevent cracking, deformation, etc. due to welding, and it is inexpensive. This has the effect of being able to obtain an excellent runner.
第１図ａは一般的なフランシスランナを示す縦
断面図、同図ｂは同上斜視図、第２図ａは本発明
の１実施例を示すランナクラウンの上面図、同図
ｂは同上斜視図である。
１……ランナクラウン、２……ランナ羽根、３
……ランナバンド、４……内輪、５……外輪。
Fig. 1a is a vertical sectional view showing a general Francis runner, Fig. 2b is a perspective view of the same, Fig. 2a is a top view of a runner crown showing one embodiment of the present invention, and Fig. 2b is a perspective view of the same. It is. 1...Runner crown, 2...Runner blade, 3
...Runner band, 4...Inner ring, 5...Outer ring.
Claims (1)
造する場合、クラウン部を分割線が羽根部を通ら
ないようにして内輪と外輪に分割し、さらに上記
外輪を一枚または複数枚の羽根ごとに、分割線が
羽根部を通らないように分割し、バンド部に於て
も羽根を分割することのないように前記クラウン
部外輪の分割数と同数に分割して、各分割片を鋳
造にて製造し、しかる後各分割片の分割面を相互
に溶接で結合して、一体に形成することを特徴と
する水車等のランナ製造方法。1. When manufacturing Francis turbines and pump turbine runners, the crown part is divided into an inner ring and an outer ring so that the parting line does not pass through the blade part, and the outer ring is further divided into an inner ring and an outer ring so that the parting line does not pass through the blade part. It is divided so that it does not pass through the blade part, and it is divided into the same number of parts as the crown part outer ring so as not to split the blades in the band part, and each divided piece is manufactured by casting. A method for manufacturing a runner for a water turbine, etc., characterized in that the divided surfaces of each divided piece are welded together to form an integral piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2895679A JPS55123374A (en) | 1979-03-13 | 1979-03-13 | Manufacture of runner for water mills, etc. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2895679A JPS55123374A (en) | 1979-03-13 | 1979-03-13 | Manufacture of runner for water mills, etc. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55123374A JPS55123374A (en) | 1980-09-22 |
| JPS6149510B2 true JPS6149510B2 (en) | 1986-10-29 |
Family
ID=12262859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2895679A Granted JPS55123374A (en) | 1979-03-13 | 1979-03-13 | Manufacture of runner for water mills, etc. |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55123374A (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2512126C (en) * | 2005-07-14 | 2013-11-12 | General Electric Canada | Split francis turbine runner |
| FR2935761B1 (en) * | 2008-09-05 | 2010-10-15 | Alstom Hydro France | FRANCIS TYPE WHEEL FOR A HYDRAULIC MACHINE, A HYDRAULIC MACHINE COMPRISING SUCH A WHEEL AND A METHOD OF ASSEMBLING SUCH A WHEEL |
| CN105332846B (en) * | 2014-08-06 | 2018-11-27 | 昆山永年先进制造技术有限公司 | Rotary wheel of water turbine and its manufacturing method |
| EP3517771B1 (en) * | 2018-01-25 | 2022-09-28 | GE Renewable Technologies | Improvements relating to hydroturbine manufacture |
| EP3557040A1 (en) * | 2018-04-20 | 2019-10-23 | GE Renewable Technologies | Reduced scale runner and method of manufacturing thereof |
| WO2020147997A1 (en) * | 2019-01-14 | 2020-07-23 | Voith Patent Gmbh | Method for producing a radial flow runner and a runner produced |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50135453A (en) * | 1974-04-17 | 1975-10-27 | ||
| JPS538445B2 (en) * | 1973-03-28 | 1978-03-29 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52135744U (en) * | 1976-04-12 | 1977-10-15 | ||
| JPS538445U (en) * | 1976-07-07 | 1978-01-24 |
-
1979
- 1979-03-13 JP JP2895679A patent/JPS55123374A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS538445B2 (en) * | 1973-03-28 | 1978-03-29 | ||
| JPS50135453A (en) * | 1974-04-17 | 1975-10-27 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS55123374A (en) | 1980-09-22 |
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