JPS6037315B2 - How to make casings for hydraulic machines - Google Patents
How to make casings for hydraulic machinesInfo
- Publication number
- JPS6037315B2 JPS6037315B2 JP52002950A JP295077A JPS6037315B2 JP S6037315 B2 JPS6037315 B2 JP S6037315B2 JP 52002950 A JP52002950 A JP 52002950A JP 295077 A JP295077 A JP 295077A JP S6037315 B2 JPS6037315 B2 JP S6037315B2
- Authority
- JP
- Japan
- Prior art keywords
- casing
- speed ring
- spiral casing
- welded
- hydraulic machine
- 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
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
Landscapes
- Hydraulic Turbines (AREA)
Description
【発明の詳細な説明】
本発明は、水車、ポンプ水車の比較的大型の水力機械の
ケーシング製作方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a casing for a relatively large hydraulic machine such as a water wheel or a pump water wheel.
近時、水力機械のケーシングは、大型化の傾向にあるが
、これに伴い輸送上の制約がケーシングの製作工程上重
要な要素の一つになってきている。In recent years, the casings of hydraulic machines have tended to become larger, and along with this, transportation constraints have become an important factor in the casing manufacturing process.
即ち従来の水力機械のケーシング製作方法を第１図〜第
３図を参照して説明する。まず相対向して配置した２枚
のりング状の主板１の間にに複数枚のステーベーン２を
熔接してなるスピードリング３を製作するとともに別個
に曲げ加工によりうず巻きケーシング４を製作する。そ
の後第１図に示すようにうず巻きケーシング４の閉口端
ととスピードリング３の主板１とをＡ部にて溶接する。
その後第２図に示すようにうず巻きケーシング４を前記
Ａ部近傍部であるＢ部にて切断し、スピードリングの主
板１と溶接結合された状態の接続片５と残部６とに分離
する。Ａ部の非破壊検査を工場にて行なった後、上記ス
ピードリング３及びうず巻きケーシングの残部６を夫々
現地に搬送し、現地にて第３図に示すように前記うず巻
きケーシングの接続片５と残部６をＢ部にて溶接結合す
る。このような従来の方法によると、輸送上の制約は解
決されるが、以下の欠点が生じる。That is, a conventional method of manufacturing a casing for a hydraulic machine will be explained with reference to FIGS. 1 to 3. First, a speed ring 3 is manufactured by welding a plurality of stay vanes 2 between two ring-shaped main plates 1 arranged opposite each other, and a spiral casing 4 is manufactured separately by bending. Thereafter, as shown in FIG. 1, the closed end of the spiral casing 4 and the main plate 1 of the speed ring 3 are welded at part A.
Thereafter, as shown in FIG. 2, the spiral casing 4 is cut at part B, which is near the part A, and separated into the connecting piece 5, which is welded to the main plate 1 of the speed ring, and the remaining part 6. After a non-destructive inspection of part A was carried out at the factory, the speed ring 3 and the remaining part 6 of the spiral casing were transported to the site, where the connection piece 5 and the remaining part of the spiral casing were inspected as shown in FIG. 6 are welded together at part B. Although such conventional methods solve transportation constraints, the following drawbacks occur.
すなわち従来の方法においては、スピードリングとうず
巻きケーシングを一度工場内で組み合わせる必要がある
ため、水力機械のケーシングが大形化してくると、この
ような組み合わせ作業には大きなスペースを必要とし、
場合によっては建物上の制約により組み合わせ不可能な
場合がある。またこの作業に要する工数と費用は莫大な
ものとなっていた。本発明は、製作工程の工数を極力減
少させた水力機械のケーシング製作方法を提供すること
を目的とする。In other words, in the conventional method, it is necessary to assemble the speed ring and the spiral casing once in the factory, so as the casing of hydraulic machinery becomes larger, such assembly requires a large space.
In some cases, combinations may not be possible due to building restrictions. Moreover, the man-hours and costs required for this work were enormous. SUMMARY OF THE INVENTION An object of the present invention is to provide a method for manufacturing a casing for a hydraulic machine in which the number of man-hours in the manufacturing process is reduced as much as possible.
上記の目的を達成するため本発明は、相対向して配置さ
れた２枚のりング状の主板間に複数枚のステーベーンを
配置してなるスピードリングと、このスピードリングの
主坂上にその開口端を溶接したうず巻きケーシングとよ
りなる水力機械のケーシングにおいて、まずスピードリ
ングとうず巻きケーシングとを別個に製作し、その後う
ず巻きケーシングを接続片とその残部とに切断し、この
切断した接続片の一端を前記主板上に溶接し、その後接
続片の他端と前記うず巻きケーシングの残部とを溶接し
たものであり、これにより製作工程の工数を減少させる
ことができる。In order to achieve the above object, the present invention provides a speed ring in which a plurality of stay vanes are arranged between two ring-shaped main plates arranged opposite to each other, and an opening end of the speed ring on the main slope of the speed ring. In the case of a hydraulic machine casing consisting of a spiral casing welded with The connecting piece is welded onto the main plate, and then the other end of the connecting piece and the remaining part of the spiral casing are welded, thereby reducing the number of man-hours in the manufacturing process.
次に本発明の一実施例について第４図〜第７図を参照し
て説明する。Next, one embodiment of the present invention will be described with reference to FIGS. 4 to 7.
まず第４図に示すように相対して配置した２枚のＩＪン
グの主板１に複数枚のステーベーン２を溶接してなるス
ピードリング３を製作するとともに別個に曲げ加工によ
りうず巻きケーシング４を製作する。その後第５図に示
すように、うず巻きケーシング４をその開□端近僕部の
Ｂ部にて切断し接続片５及び残部６とに分離する。さら
に第６図に示すように分離された接続片５の一端と前記
スピードリングの主板１とをＡ部にて溶接し、さらにこ
のＡ部の非破壊検査を工場にて行なう。そしてこれらス
ピードリング３及びうず巻きケーシングの残部６を別体
のまま現地へ搬送し、現地にて第７図に示すように前言
己うず巻きケーシングの接続片５の池端と残部６をＢ部
にて溶接結合する。以上の説明から明らかなように、本
発明によれば次のような利点を有する。First, as shown in Fig. 4, a speed ring 3 is manufactured by welding a plurality of stay vanes 2 to the main plates 1 of two IJ rings placed opposite each other, and a spiral casing 4 is manufactured separately by bending. . Thereafter, as shown in FIG. 5, the spiral casing 4 is cut at a portion B near the open end to separate the connecting piece 5 and the remaining portion 6. Further, as shown in FIG. 6, one end of the separated connection piece 5 and the main plate 1 of the speed ring are welded at a section A, and a non-destructive inspection of this section A is performed at the factory. Then, the speed ring 3 and the remaining part 6 of the spiral casing are transported to the site as separate pieces, and at the site, as shown in FIG. Join. As is clear from the above description, the present invention has the following advantages.
（１’本発明によれば、スピードリングとうず巻きケー
シングを組み合わせる作業が不要であるため、工場スペ
ースの制約を受けず、水力機械のケーシングの大形化に
対応できる。(1'According to the present invention, there is no need to assemble the speed ring and the spiral casing, so it is possible to cope with increasing the size of the casing of hydraulic machinery without being subject to constraints on factory space.
ｔ２’ 従来の方法の場合には、Ａ部溶接のためにスピ
ードリングとうす巻きケーシングが一体になったものを
下向き溶接を行なうため天地回転する必要があるが、そ
の外周側に付設された大物部品を天地回転する事は非常
に危険を伴い多くの時間を要していた。t2' In the case of the conventional method, it is necessary to rotate the speed ring and thinly wound casing together in order to perform downward welding in order to weld the A part. Rotating parts upside down was extremely dangerous and took a lot of time.
しかし本発明によればその作業が容易となり、場合によ
っては天地回転作業が不要となる。However, according to the present invention, this work becomes easier, and in some cases, the vertical rotation work becomes unnecessary.
第１図〜第３図は従来の水力機械のケーシング製作方法
の各工程を示す説明図、第４図〜第７図は本発明の水力
機械のケーシング製作方法の各工程を示す説明図である
。
１・・・主板、２…ステーべ−ン、３・・・スピードリ
ング、４・・・うず巻きケーシング、５・・・接続片、
６・・・残部。
第１図
第２図
第３図
第４図
第５図
第６図
第７図FIGS. 1 to 3 are explanatory diagrams showing each step of a conventional method for manufacturing a casing for a hydraulic machine, and FIGS. 4 to 7 are explanatory diagrams showing each step of a method for manufacturing a casing for a hydraulic machine according to the present invention. . 1... Main plate, 2... Stay vane, 3... Speed ring, 4... Spiral casing, 5... Connection piece,
6...Remainder. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7
Claims (1)
数枚のステーベーンを配置してなるスピードリングと、
このスピードリングの主板上にその開口端を溶接したう
ず巻きケーシングとよりなる水力機械のケーシングにお
いて、まずスピードリングとうず巻きケーシングとを別
個に製作し、その後うず巻ケーシングを接続片とその残
部とに切断し、この切断した接続片の一端を前記主板上
に溶接し、その後後続片の他端と前記うず巻きケーシン
グの残部とを溶接したことを特徴とする水力機械のケー
シング製作方法。1. A speed ring consisting of a plurality of stay vanes arranged between two ring-shaped main plates arranged opposite each other,
In this hydraulic machine casing, which consists of a spiral casing whose open end is welded onto the main plate of the speed ring, the speed ring and the spiral casing are first manufactured separately, and then the spiral casing is cut into the connecting piece and its remaining parts. A method of manufacturing a casing for a hydraulic machine, characterized in that one end of the cut connection piece is welded onto the main plate, and then the other end of the following piece is welded to the remainder of the spiral casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP52002950A JPS6037315B2 (en) | 1977-01-17 | 1977-01-17 | How to make casings for hydraulic machines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP52002950A JPS6037315B2 (en) | 1977-01-17 | 1977-01-17 | How to make casings for hydraulic machines |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5388431A JPS5388431A (en) | 1978-08-03 |
| JPS6037315B2 true JPS6037315B2 (en) | 1985-08-26 |
Family
ID=11543641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP52002950A Expired JPS6037315B2 (en) | 1977-01-17 | 1977-01-17 | How to make casings for hydraulic machines |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6037315B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6219163A (en) * | 1985-07-19 | 1987-01-27 | 松下電器産業株式会社 | Heat accumulator |
| JPS646929U (en) * | 1987-06-30 | 1989-01-17 |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5419033A (en) * | 1977-07-13 | 1979-02-13 | Hitachi Ltd | Preparation of scroll casing of hydraulic machinery |
| JPS55148975A (en) * | 1979-05-11 | 1980-11-19 | Hitachi Ltd | Installation of hydraulic machine |
| JPS58122789U (en) * | 1982-02-15 | 1983-08-20 | 三菱重工業株式会社 | volute casing for water turbines |
-
1977
- 1977-01-17 JP JP52002950A patent/JPS6037315B2/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6219163A (en) * | 1985-07-19 | 1987-01-27 | 松下電器産業株式会社 | Heat accumulator |
| JPS646929U (en) * | 1987-06-30 | 1989-01-17 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5388431A (en) | 1978-08-03 |
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