JPS60183202U

JPS60183202U - Main steam introduction pipe device for steam turbine casing

Info

Publication number: JPS60183202U
Application number: JP7040784U
Authority: JP
Inventors: 柿島　正好
Original assignee: 株式会社東芝
Priority date: 1984-05-16
Filing date: 1984-05-16
Publication date: 1985-12-05

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は蒸気タービンを示す概略構成図、第２図は主蒸
気入口部の詳細を示す断面図、第３図は第２図のｙ−ｙ
線の断面図、第４図は本考案による蒸気タービンケーシ
ングの主蒸気導入管装置の一実施例を示す断面図、示５
図はその第４図のＹ−Ｙ線に沿う断面図、第６図は第５
図の２−２線に沿う断面図、第７図は本考案の他の実施
例における一体導入管部を示す断面図である。１・・・・・・外部ケーシング、２・・・・・・内部ケ
ーシング、３・・・・・・ノズルボックス、４・・・・
・・蒸気導入管、５．６・・・・・・シーリングリング
、７・・・・・・動翼、８・・・・・・主蒸気入口管、
９・・・・・・フランジ面、９ａ・・・・・・フランジ
、１０・・・・・・ボルト、１１・・・・・・ガスケッ
ト、１２・・・・・・外部、内部ケーツング空間、１４
・・・・・・主蒸気管空間、２０．２０’・・・・・・
キー、２１・・・・・・タービンロータ。Figure 1 is a schematic configuration diagram showing the steam turbine, Figure 2 is a sectional view showing details of the main steam inlet, and Figure 3 is y-y in Figure 2.
Figure 4 is a cross-sectional view showing an embodiment of the main steam introduction pipe device for a steam turbine casing according to the present invention.
The figure is a cross-sectional view taken along the Y-Y line in Figure 4, and Figure 6 is a cross-sectional view along the Y-Y line in Figure 4.
FIG. 7 is a cross-sectional view taken along line 2-2 in the figure, and FIG. 7 is a cross-sectional view showing an integral introduction pipe portion in another embodiment of the present invention. 1... External casing, 2... Inner casing, 3... Nozzle box, 4...
...Steam introduction pipe, 5.6 ... Sealing ring, 7 ... Moving blade, 8 ... Main steam inlet pipe,
9... Flange surface, 9a... Flange, 10... Bolt, 11... Gasket, 12... External, internal catering space, 14
・・・・・・Main steam pipe space, 20.20'・・・・・・
Key, 21...Turbine rotor.

Claims

[Scope of utility model registration request]

(1) A steam introduction pipe that penetrates the inner casing and leads steam to the nozzle box, and a main steam inlet pipe that penetrates the outer casing and leads steam from the outside to the steam introduction pipe, are integrated, and the steam introduction pipe 1. A main steam introduction pipe device for a steam turbine casing, characterized in that a sealing is interposed in the penetration part of the internal casing, and the main steam inlet pipe part and the external casing are connected by a flange.

(2) Claims for registration of a utility model characterized in that a key for stopping the axial movement of the outer casing and the inner casing is provided along the center line of the steam introduction pipe and on a line cut at right angles to the turbine rotor axis. A main steam introduction pipe device for a steam turbine casing according to item 1.