JPS62171601U

JPS62171601U -

Info

Publication number: JPS62171601U
Application number: JP5881886U
Authority: JP
Priority date: 1986-04-21
Filing date: 1986-04-21
Publication date: 1987-10-30

Description

[Brief explanation of the drawing]

第１図は、本考案の実施例を示す要部の縦断側
面図、第２図は、本考案の実施例における組立方
法を説明する縦断側面図、第３図は、中間フラン
ジカバーあるいは外側フランジカバーの構造概念
を示す斜視図、第４ａ図は、従来の蒸気タービン
の主蒸気入口部の構造を示す主蒸気入口管をロー
タの側方に配置した場合の要部の縦断側面図、第
４ｂ図は、前図のｂ―ｂ切断面図、第５図は
、従来主蒸気入口部構造を示す主蒸気入口管を放
射状に配置した場合の要部の縦断側面図、第６図
は、二つ割り構造の中間フランジカバー及び外側
フランジカバーを有する従来例を示す要部の縦断
側面図、第７ａ図は、従来の二つ割り構造を有す
る中間フランジカバーあるいは外側フランジカバ
ーの構造概念を示す斜視図、第７ｂ図は、従来の
二つ割り構造を有するフランジカバーに段差が生
じた場合の斜視図、第７ｃ図は、従来の二つ割構
造を有するフランジカバーの直角エツジに摩耗が
生じた場合を示す斜視図である。１１……ノズル室、１２……主蒸気入口管、１
４……内車室、１５……中間スリーブ、１６……
外車室、１７……外側スリーブ、１８……主蒸気
入口管フレキシブル管、１９……中間スリーブ中
間フレキシブル管、１１０……中間フランジカバ
ー、１１１……外側フランジカバー、１１２……
内側フレキシブルスカート、１１３……外側フレ
キシブルスカート、１１４……集約主蒸気入口管
、１１５，１１６，１１７……フランジ継手、１
２０……外側スリーブ外側フレキシブル管、１２
２……中間フランジカバーフランジ継手、１２４
……外側フランジカバーフランジ継手。 Fig. 1 is a longitudinal side view of the main parts showing an embodiment of the present invention, Fig. 2 is a longitudinal side view illustrating the assembly method in the embodiment of the invention, and Fig. 3 is a side view of the intermediate flange cover or outer flange. FIG. 4a is a perspective view showing the structural concept of the cover; FIG. The figure is a cross-sectional view taken along line bb of the previous figure, Figure 5 is a longitudinal cross-sectional side view of the main parts when the main steam inlet pipe is arranged radially, showing the conventional main steam inlet structure, and Figure 6 is a bisected view. FIG. 7a is a longitudinal cross-sectional side view of main parts showing a conventional example having an intermediate flange cover and an outer flange cover, and FIG. 7b is a perspective view showing the structural concept of an intermediate flange cover or outer flange cover having a conventional two-piece structure. The figure is a perspective view of a conventional flange cover with a two-piece structure in which a step has occurred, and FIG. be. 11... Nozzle chamber, 12... Main steam inlet pipe, 1
4...Inner compartment, 15...Intermediate sleeve, 16...
Outer compartment, 17... Outer sleeve, 18... Main steam inlet pipe flexible pipe, 19... Intermediate sleeve intermediate flexible pipe, 110... Intermediate flange cover, 111... Outer flange cover, 112...
Inner flexible skirt, 113... Outer flexible skirt, 114... Centralized main steam inlet pipe, 115, 116, 117... Flange joint, 1
20...Outer sleeve outer flexible tube, 12
2...Middle flange cover flange joint, 124
...Outer flange cover flange joint.

補正昭６１．５．２２図面の簡単な説明を次のように補正する。明細書第１１頁第１２行「１８」を「１０８」
と訂正。明細書第１１頁第１３〜１４行「１９……中間
スリーブ中間フレキシブル管」を「１０９……中
間フレキシブル管」と訂正。明細書第１１頁第１８行「外側スリーブ」を削
除。Amendment May 22, 1980 The brief description of the drawing is amended as follows. Change “18” to “108” on page 11, line 12 of the specification
Corrected. Page 11 of the specification, lines 13-14, "19... intermediate sleeve, intermediate flexible tube" has been corrected to "109... intermediate flexible tube". Deleted “Outer sleeve” on page 11, line 18 of the specification.

Claims

[Scope of utility model registration request]

The main steam inlet pipe is threadedly connected to the nozzle chamber through a gasket, and is surrounded by the inlet pipe, and the intermediate sleeve is threadedly connected to the inner casing chamber through a gasket, and is surrounded by the intermediate sleeve. connecting the outer sleeve to the outer casing, and connecting flexible pipes to the inlet pipe, the intermediate sleeve, and the intermediate portion of the outer sleeve through flange joints, respectively;
At the main steam inlet part of a steam turbine in which the ends of the flexible pipes of the intermediate sleeve and outer sleeve are bonded to the flexible pipe of the main steam inlet pipe, each of the intermediate flange cover and the outer flange cover is attached with flange joints at both ends. A structure of a main steam inlet of a steam turbine, characterized in that it has an integral structure.