JPH0314956U

JPH0314956U -

Info

Publication number: JPH0314956U
Application number: JP7339489U
Authority: JP
Priority date: 1989-06-22
Filing date: 1989-06-22
Publication date: 1991-02-14

Description

[Brief explanation of the drawing]

第１図はこの発明の実施例による横軸水車発電
機の軸受冷却装置の断面図、第２図は第１図の軸
受冷却装置のスラストカラーのＡ−Ａ断面詳細図
、第３図は従来の横軸水車発電機の水冷オイルク
ーラを利用した軸受冷却装置の断面図、第４図は
従来の横軸水車発電機の回転軸ヒートパイプを利
用した軸受冷却装置の断面図である。１……ジヤーナル軸受、３……スラスト軸受、
４……回転軸、６……ランナー、７……回転軸ヒ
ートパイプ、８……蒸気空間、９……中空部、１
９……作動流体通路、２０……作動液、２２……
スラストカラー、２３……外周リング。 FIG. 1 is a sectional view of a bearing cooling device for a horizontal shaft water turbine generator according to an embodiment of the present invention, FIG. 2 is a detailed sectional view taken along line A-A of the thrust collar of the bearing cooling device of FIG. 1, and FIG. 3 is a conventional FIG. 4 is a cross-sectional view of a bearing cooling device using a water-cooled oil cooler for a conventional horizontal-shaft water turbine generator. 1... Journal bearing, 3... Thrust bearing,
4... Rotating shaft, 6... Runner, 7... Rotating shaft heat pipe, 8... Steam space, 9... Hollow part, 1
9... Working fluid passage, 20... Working fluid, 22...
Thrust collar, 23...outer ring.

Claims

[Scope of utility model registration request]

A rotating shaft directly connected to the runner is horizontally supported by a journal bearing and a thrust bearing outside the casing, the journal bearing and thrust bearing are used as a heat generating part on the outer periphery of the rotating shaft, and the runner side water passage part exposed to the water channel is a cooling part. In a bearing cooling device, the thrust collar of a horizontal shaft water turbine generator forming a rotating shaft heat pipe is provided with a hollow portion that communicates with the steam space of the heat generating part of the rotating shaft heat pipe. A bearing cooling device for a horizontal shaft water turbine generator, characterized in that an annular outer ring covering a hollow portion is welded and integrated.