JPS5581274A - Drain structure for hydraulic machinery - Google Patents

Drain structure for hydraulic machinery

Info

Publication number
JPS5581274A
JPS5581274A JP15318878A JP15318878A JPS5581274A JP S5581274 A JPS5581274 A JP S5581274A JP 15318878 A JP15318878 A JP 15318878A JP 15318878 A JP15318878 A JP 15318878A JP S5581274 A JPS5581274 A JP S5581274A
Authority
JP
Japan
Prior art keywords
pressure chamber
liner
lower cover
side pressure
notch
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
Application number
JP15318878A
Other languages
Japanese (ja)
Inventor
Setsuo Yamada
Kiyoshi Yoshii
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fuji Electric Co Ltd
Original Assignee
Fuji Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fuji Electric Co Ltd filed Critical Fuji Electric Co Ltd
Priority to JP15318878A priority Critical patent/JPS5581274A/en
Publication of JPS5581274A publication Critical patent/JPS5581274A/en
Pending legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/20—Hydro energy

Landscapes

  • Hydraulic Turbines (AREA)

Abstract

PURPOSE: To decrease an upward thrust of a liner band and thus to improve a hydraulic efficiency by chamfering the peripheral edge of a drain notch provided in equal pitch on the outer periphery of a lower cover wall forming the bottom of a linear side pressure chamber.
CONSTITUTION: Leaked water from a guide vane 9 enters a liner side pressure chamber 11 through the clearance between a liner band 3 and a lower cover vertical wall 12. The leak further enters a water chamber 15 by way of a drain notch 13 provided in equal pitch on a lower cover wall on the bottom of said pressure chamber 11 and is then drained outside through a drain pipe 16. Then, the peripheral edge of said notch 13 has been subjected to chamfering 18 all. A static pressure on the liner side pressure chamber 11 can be decreased thereby at the time of atmospheric operation of the runner, and an upward thrust of a liner band 2 is decreased accordingly, thus improving a hydraulic efficiency.
COPYRIGHT: (C)1980,JPO&Japio
JP15318878A 1978-12-13 1978-12-13 Drain structure for hydraulic machinery Pending JPS5581274A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15318878A JPS5581274A (en) 1978-12-13 1978-12-13 Drain structure for hydraulic machinery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15318878A JPS5581274A (en) 1978-12-13 1978-12-13 Drain structure for hydraulic machinery

Publications (1)

Publication Number Publication Date
JPS5581274A true JPS5581274A (en) 1980-06-19

Family

ID=15556961

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15318878A Pending JPS5581274A (en) 1978-12-13 1978-12-13 Drain structure for hydraulic machinery

Country Status (1)

Country Link
JP (1) JPS5581274A (en)

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