JPH03102002U - - Google Patents
Info
- Publication number
- JPH03102002U JPH03102002U JP1074490U JP1074490U JPH03102002U JP H03102002 U JPH03102002 U JP H03102002U JP 1074490 U JP1074490 U JP 1074490U JP 1074490 U JP1074490 U JP 1074490U JP H03102002 U JPH03102002 U JP H03102002U
- Authority
- JP
- Japan
- Prior art keywords
- casing
- steam
- labyrinth
- inner casing
- axle
- 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
- 238000012856 packing Methods 0.000 claims description 5
Description
第１図は本考案の実施例による蒸気タービンの
部分断面図、第２図は第１図のラビリンスパツキ
ンの部分拡大図、第３図は従来の蒸気タービンの
部分断面図、第４図は第３図のＡ−Ａ断面図であ
る。
１…車軸、２…動翼、３…内部ケーシング、４
…静翼、５…蒸気入口、７，１４，１５…ラビリ
ンスパツキン、１１…外部ケーシング、２０…ラ
ビリンスフイン。
FIG. 1 is a partial cross-sectional view of a steam turbine according to an embodiment of the present invention, FIG. 2 is a partial enlarged view of the labyrinth packing shown in FIG. 1, FIG. 3 is a partial cross-sectional view of a conventional steam turbine, and FIG. 4 is a partial cross-sectional view of a conventional steam turbine. FIG. 3 is a sectional view taken along line A-A in FIG. 3; 1... Axle, 2... Moving blade, 3... Internal casing, 4
... Stationary blade, 5... Steam inlet, 7, 14, 15... Labyrinth packing, 11... External casing, 20... Labyrinth fin.
Claims (1)
を形成する静翼を備える内部ケーシングと、この
ケーシングを囲む外部ケーシングとからなり、車
軸が内部ケーシング内の段落に流入する蒸気入口
側の内部ケーシングを貫通する部分にその対向す
る面に隙間を持たせて複数個のラビリンスフイン
を植設して設けられる蒸気の漏洩量を制限する第
１のラビリンスパツキンと、内部ケーシングと外
部ケーシングとの間の外部車室とこの車室に隣り
、外部ケーシング内に設けられる前記蒸気入口側
の外側車室との間を車軸が貫通する部分に設けら
れる前記からなる第２のラビリンスパツキンとを
備える蒸気タービンにおいて、第１と第２のラビ
リンスパツキンを、蒸気が内部ケーシング内に通
流時の第２のラビリンスパツキンの蒸気漏洩量を
第１のラビリンスパツキンの蒸気漏洩量より多く
なるように形成したことを特徴とする蒸気タービ
ン。 The steam inlet side is composed of an axle, an inner casing that surrounds the rotor blade part of the axle and includes stationary vanes that form a stage with the rotor blade, and an outer casing that surrounds this casing, and the steam inlet side where the axle flows into the stage in the inner casing. a first labyrinth fin for limiting the amount of steam leakage, which is provided by installing a plurality of labyrinth fins with gaps between the opposing surfaces of the inner casing of the inner casing; and the inner casing and the outer casing. and a second labyrinth gasket, which is provided at a portion where the axle passes through the space between the outer casing between the casing and the outer casing on the steam inlet side, which is provided in the outer casing and is adjacent to the casing. In the steam turbine, the first and second labyrinth packings are formed such that when steam flows into the inner casing, the amount of steam leaking from the second labyrinth packing is greater than the amount of steam leaking from the first labyrinth packing. A steam turbine characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1074490U JPH03102002U (en) | 1990-02-06 | 1990-02-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1074490U JPH03102002U (en) | 1990-02-06 | 1990-02-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03102002U true JPH03102002U (en) | 1991-10-24 |
Family
ID=31514297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1074490U Pending JPH03102002U (en) | 1990-02-06 | 1990-02-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03102002U (en) |
-
1990
- 1990-02-06 JP JP1074490U patent/JPH03102002U/ja active Pending
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