JPS5827501U

JPS5827501U - Steam turbine low pressure casing

Info

Publication number: JPS5827501U
Application number: JP12183881U
Authority: JP
Inventors: 八木沢　宏
Original assignee: 株式会社東芝
Priority date: 1981-08-19
Filing date: 1981-08-19
Publication date: 1983-02-22

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図は従来技術による低圧ケーシングの縦断面図、第
２図は真空荷重による低圧ケーシングの変形状態を示す
説明図、第３図は本考案による低圧ケーシングの一実施
例を示す縦断面図、第４図は第３図の要部拡大図、第５
図は第４図の■−■線に沿う断面図である。２・・・蒸気流入部、３・・・ケーシング胴体、６・・
・囲い板、７・・・排気室、１０・・・支持板、１１・
・・仕切板、１２ａ、１２ｂ・・・防熱板。第３図FIG. 1 is a longitudinal cross-sectional view of a low-pressure casing according to the prior art, FIG. 2 is an explanatory diagram showing the state of deformation of the low-pressure casing due to vacuum load, and FIG. 3 is a longitudinal cross-sectional view showing an embodiment of the low-pressure casing according to the present invention. Figure 4 is an enlarged view of the main part of Figure 3, and Figure 5
The figure is a sectional view taken along the line ■-■ in FIG. 4. 2...Steam inflow section, 3...Casing body, 6...
- Shrouding plate, 7... Exhaust chamber, 10... Support plate, 11.
...Partition plates, 12a, 12b...Heat insulation plates. Figure 3

Claims

[Scope of utility model registration request]

A steam inflow section that guides steam toward an annular row of rotor blades and annular rows of rotor blades provided inside at the upper center, and an exhaust chamber that guides steam that has passed through the stator vanes and the annular row of rotor blades to the outside at both ends. a casing body having a casing body, and an end portion of the casing body facing the exhaust chamber, one end of which is embroidered on the outer periphery of the casing body, and the other end is embossed on the inner periphery of a shroud forming the exhaust chamber. one end was attached to the cone part and the other end was attached to the inner peripheral part of the shroud plate through a heat insulating plate so as to face the final annular row of the rotor blades in the exhaust chamber. A low pressure casing for a steam turbine comprising a partition plate.