JPS63100601U - - Google Patents
Info
- Publication number
- JPS63100601U JPS63100601U JP19448886U JP19448886U JPS63100601U JP S63100601 U JPS63100601 U JP S63100601U JP 19448886 U JP19448886 U JP 19448886U JP 19448886 U JP19448886 U JP 19448886U JP S63100601 U JPS63100601 U JP S63100601U
- Authority
- JP
- Japan
- Prior art keywords
- inlet pipe
- steam inlet
- main steam
- seal ring
- nozzle chamber
- 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
- 238000007789 sealing Methods 0.000 claims description 2
Landscapes
- Turbine Rotor Nozzle Sealing (AREA)
Description
第１図は本考案の第１の実施例の縦断面図であ
る。第２図は本考案の第２の実施例の縦断面図で
ある。第３図は蒸気タービンの入口部の構造を示
す断面図である。第４図は主蒸気入口管とノズル
室との連絡個処の従来のシール構造を示す縦断面
図である。第５図は第４図と同様に従来のシール
構造を示す縦断面図である。
１１…外車室、１２…主蒸気入口管、２１…内
車室、３１…ノズル室、３２…ノズルブロツク、
４１…ロータ、４２…調速段動翼、４３…高圧段
動翼、５１…高圧ダミー環、６１…高圧翼環、７
１，７２，７５…シールリング、７７…シールリ
ング止め具、７６…シールリングとノズル嵌合部
のクリアランス、２００…主蒸気入口通路、２０
１，２０２…蒸気室。
FIG. 1 is a longitudinal sectional view of a first embodiment of the present invention. FIG. 2 is a longitudinal sectional view of a second embodiment of the present invention. FIG. 3 is a sectional view showing the structure of the inlet section of the steam turbine. FIG. 4 is a longitudinal sectional view showing a conventional sealing structure at a point where the main steam inlet pipe and the nozzle chamber communicate with each other. FIG. 5 is a longitudinal sectional view showing a conventional seal structure, similar to FIG. 4. 11... Outer compartment, 12... Main steam inlet pipe, 21... Inner compartment, 31... Nozzle chamber, 32... Nozzle block,
41...Rotor, 42...Governing stage rotor blade, 43...High pressure stage rotor blade, 51...High pressure dummy ring, 61...High pressure blade ring, 7
1, 72, 75... Seal ring, 77... Seal ring stopper, 76... Clearance between seal ring and nozzle fitting part, 200... Main steam inlet passage, 20
1,202...Steam room.
Claims (1)
嵌合するノズル室の上端の包囲壁とを密封するシ
ール構造において、前記主蒸気入口管の下端に前
記のノズル室の材料よりも熱膨脹係数の大なる材
料のシールリングを固定し、このシールリングを
前記包囲壁が包囲するようにしたことを特徴とす
る蒸気タービンのシール構造。 In a sealing structure that seals the lower end of a main steam inlet pipe of a steam turbine and the surrounding wall at the upper end of a nozzle chamber that fits into the lower end of the main steam inlet pipe, the lower end of the main steam inlet pipe has a thermal expansion coefficient higher than that of the material of the nozzle chamber. A seal structure for a steam turbine, characterized in that a seal ring made of a large material is fixed and the seal ring is surrounded by the surrounding wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19448886U JPS63100601U (en) | 1986-12-19 | 1986-12-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19448886U JPS63100601U (en) | 1986-12-19 | 1986-12-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63100601U true JPS63100601U (en) | 1988-06-30 |
Family
ID=31151507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19448886U Pending JPS63100601U (en) | 1986-12-19 | 1986-12-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63100601U (en) |
-
1986
- 1986-12-19 JP JP19448886U patent/JPS63100601U/ja active Pending