JPS6131605A - Seal fin for steam turbine and the like - Google Patents
Seal fin for steam turbine and the likeInfo
- Publication number
- JPS6131605A JPS6131605A JP15212184A JP15212184A JPS6131605A JP S6131605 A JPS6131605 A JP S6131605A JP 15212184 A JP15212184 A JP 15212184A JP 15212184 A JP15212184 A JP 15212184A JP S6131605 A JPS6131605 A JP S6131605A
- Authority
- JP
- Japan
- Prior art keywords
- seal fin
- seal
- fin
- implanted
- steam
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
- F01D11/003—Preventing or minimising internal leakage of working-fluid, e.g. between stages by packing rings; Mechanical seals
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
Description
【発明の詳細な説明】
一産業上の利用分野
本発明は、蒸気タービン等のシールフィン植込部（翼環
、仕切板又はロータに相当）に対するソールフィンの植
込、及び換装の工数低減と材料費軽減の技術分野で利用
される。DETAILED DESCRIPTION OF THE INVENTION An industrial field of application The present invention is directed to reducing the number of man-hours required for implanting and replacing sole fins in seal fin implanted portions (corresponding to blade rings, partition plates, or rotors) of steam turbines, etc. Used in technical fields to reduce material costs.
従来の技術
シールフィンの従来技術について、第３図に従って説明
する。BACKGROUND OF THE INVENTION The prior art of seal fins will be explained with reference to FIG.
第３図において、符号］はシールフィン、３は植込部、
Ｓは静止部（又は回転部）、Ｒは回転部（又は静止部）
を示す。In Fig. 3, symbol ] is a seal fin, 3 is an implanted part,
S is a stationary part (or rotating part), R is a rotating part (or stationary part)
shows.
従来の蒸気タービン等におけるシールフィン１は第３図
に示すように、植込部３に対して垂直にセットされてい
る。A seal fin 1 in a conventional steam turbine or the like is set perpendicularly to an implanted portion 3, as shown in FIG.
シールフィン１は運転時、特に起動時の定常運転状態に
至るまでの過渡状態において、回転部（又は静止部）と
接触摩耗し、静止部、回転部間の間隙が広がり、性能低
下を来たす。The seal fin 1 wears out in contact with the rotating part (or stationary part) during operation, especially in a transient state up to a steady operating state at startup, and the gap between the stationary part and the rotating part widens, resulting in a decrease in performance.
従来のようにシールフィン１を植込部３に対して垂直に
植込むと、所要の間隙を保持するために定期的にシール
フィン１の換装を余儀なくされていた。If the seal fin 1 is implanted perpendicularly to the implantation part 3 as in the past, the seal fin 1 has to be periodically replaced in order to maintain the required gap.
発明が解決しようとする問題点
本発明は、以上述べたような構成になる蒸気タービン等
のシールフィンの換装回数を軽減し工数の低減を図るこ
とにある。Problems to be Solved by the Invention The object of the present invention is to reduce the number of replacements of seal fins in a steam turbine or the like configured as described above, thereby reducing the number of man-hours.
問題点を解決するだめの手段
本発明は、上述の問題を解決するために、次のような手
段を採っている。すなわち、
ソールフィン植込部に対して斜めにシールフィンを植込
むようにする。Means for Solving the Problems The present invention employs the following means to solve the above-mentioned problems. That is, the seal fin is implanted diagonally with respect to the sole fin implantation part.
作用
以上述べた手段によれば、したがって、前記シ−ルフィ
ンの欠点は解消され、性能を低下させることなく、シー
ルフィン換装の回数を縮減し、工数の低減を計ることが
出来る。Effects According to the above-described means, the drawbacks of the seal fin are eliminated, and the number of replacements of the seal fin can be reduced without deteriorating the performance, thereby reducing the number of man-hours.
実施例
次に、第１図及び第２図を参照して、本発明の実症例に
ついて詳述する。EXAMPLE Next, an actual case of the present invention will be described in detail with reference to FIGS. 1 and 2.
第１図、第２図において、符号ｊは前記従来例ト同シく
シールフィン、２はシールフィン１に固定するだめのコ
ーキングピース（固定部材）、３は植込部で、Ｗはンー
刀・フィンｌの摩耗量、ｒは間隙修正量を示し、第１図
は新装時のフィン１の状態で、第２図はフィン１全曲（
げ間隙修正後の状＠を示したものである。In FIGS. 1 and 2, the symbol j is the seal fin as in the conventional example, 2 is the caulking piece (fixing member) to be fixed to the seal fin 1, 3 is the implanted part, and W is the blade.・The wear amount of fin l, r indicates the amount of gap correction. Figure 1 shows the state of fin 1 when it was newly installed, and Figure 2 shows the state of fin 1 when it was completely bent (
The figure shows the state after the gap has been corrected.
蒸気タービン中に流入した全蒸気流量の一部は、回転部
、静止部（共に第３図のＲ，Ｓ参照）間の間隙から仕事
をしないで漏洩する。この漏洩を防止スるのがシールフ
ィン１で、本発明では植込部３に対して斜めに植込まれ
る。シールフィン１は時日°２経るにつれ、先端に摩耗
量Ｗが生ずる。A portion of the total steam flow that has entered the steam turbine leaks without doing any work through the gap between the rotating part and the stationary part (see both R and S in FIG. 3). The seal fin 1 prevents this leakage, and in the present invention, it is implanted diagonally with respect to the implantation part 3. As time and day 2 pass, the seal fin 1 experiences a wear amount W at its tip.
前記シールフィン１を植込部３に固定するのがコーキン
グピース（固定部材っである。The seal fin 1 is fixed to the implanted part 3 by a caulking piece (fixing member).
植込部３は翼環、仕切板又はロータに相当する。The implanted portion 3 corresponds to a blade ring, a partition plate, or a rotor.
本発明においては、シールフィン１を斜めに植込むこと
によシ、従来と同一間隙に対し、全長を長くすることが
出来る。従って、シールフィン１が摩耗してもシールフ
ィン１を交換することなく、単に第２図に示すごとく垂
直方向に曲げ、間隙修正ｉ＋ｔｒにより、最適間隙を持
続するようにすればシールフィン１を交換する必要はな
くなる。In the present invention, by implanting the seal fin 1 diagonally, the overall length can be increased for the same gap as in the prior art. Therefore, even if the seal fin 1 is worn out, the seal fin 1 can be replaced by simply bending it in the vertical direction as shown in Figure 2 and maintaining the optimum gap by adjusting the gap i+tr. There will be no need to do so.
発明の効果
以上述べた構成によれば、シールフィンを交換する工数
（回数ンが低減でき、シールフィンの材料費を軽減し得
て、コストを低減することが可能となる。Effects of the Invention According to the configuration described above, the number of man-hours for replacing the seal fins can be reduced, the material cost of the seal fins can be reduced, and the cost can be reduced.
＠１図、第２図は本発明に関し、第１図は新装時のフィ
ンの状態を示す断面図、第２図はフィンを曲′げ、間隙
修正後の状態を示す断面図、第３図は従来のシールフィ
ンの状態を示す断面図である。
１・・シールフィン、２・・コーキングピース、３・・
ネ１β込部。
復代理人 本村正巳
（ほか２名）
第１図
第２図
第３図@ Figures 1 and 2 relate to the present invention; Figure 1 is a sectional view showing the state of the fins when new, Figure 2 is a sectional view showing the state after the fins are bent and the gap is corrected, and Figure 3 FIG. 2 is a sectional view showing the state of a conventional seal fin. 1. Seal fin, 2. Caulking piece, 3.
Ne1β included. Sub-agent Masami Motomura (and 2 others) Figure 1 Figure 2 Figure 3
Claims (1)
ン等のシールフィン。Seal fins for steam turbines, etc. installed diagonally to the seal fin installation area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15212184A JPS6131605A (en) | 1984-07-24 | 1984-07-24 | Seal fin for steam turbine and the like |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15212184A JPS6131605A (en) | 1984-07-24 | 1984-07-24 | Seal fin for steam turbine and the like |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6131605A true JPS6131605A (en) | 1986-02-14 |
Family
ID=15533517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15212184A Pending JPS6131605A (en) | 1984-07-24 | 1984-07-24 | Seal fin for steam turbine and the like |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6131605A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008142887A (en) * | 2006-12-11 | 2008-06-26 | Roehm Gmbh | Fastening chuck |
| US8469367B2 (en) | 2008-07-16 | 2013-06-25 | Yutaka Giken Co., Ltd. | Chucking device for use in machining exhaust gas purifying system |
-
1984
- 1984-07-24 JP JP15212184A patent/JPS6131605A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008142887A (en) * | 2006-12-11 | 2008-06-26 | Roehm Gmbh | Fastening chuck |
| US8469367B2 (en) | 2008-07-16 | 2013-06-25 | Yutaka Giken Co., Ltd. | Chucking device for use in machining exhaust gas purifying system |
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