JPS5744773A - Multiple stage type water power machine - Google Patents

Multiple stage type water power machine

Info

Publication number
JPS5744773A
JPS5744773A JP55119769A JP11976980A JPS5744773A JP S5744773 A JPS5744773 A JP S5744773A JP 55119769 A JP55119769 A JP 55119769A JP 11976980 A JP11976980 A JP 11976980A JP S5744773 A JPS5744773 A JP S5744773A
Authority
JP
Japan
Prior art keywords
runner
diameter
stepped section
water power
pressure 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
Application number
JP55119769A
Other languages
Japanese (ja)
Inventor
Yasuo Hishida
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP55119769A priority Critical patent/JPS5744773A/en
Publication of JPS5744773A publication Critical patent/JPS5744773A/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 reduce the water power axial thrust, by arranging a piping line to communicate an inner back pressure chamber of a highest pressure stepped section with a suction pipe, and specifying the relationship of the diameters of an intermediate seal and an inner circumferential seal.
CONSTITUTION: In a main shaft 21 is provided the piping line 25 to communicate the inner back pressure chamber 10 above a highest pressure stepped section runner 23 with the suction pipe 24 below a water wheel, but no balance hole is provided in a lower runner 22 and the highest pressure stepped section 23. The relationship of the diameter DS1 of the intermediate seal 8 with the diameter DS2 of the inner circumferential seal 13 is specified such that (D0-DS1)÷(D0-DS2) is less than 1 wherein D0 is the diameter of the inlet of the runner 23. Accordingly, the water pressure of the inner back pressure chamber 10 becomes low, and an upward axial thrust acts on the runner 23 to reduce the thrust acting on the whole shaft 21.
COPYRIGHT: (C)1982,JPO&Japio
JP55119769A 1980-09-01 1980-09-01 Multiple stage type water power machine Pending JPS5744773A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55119769A JPS5744773A (en) 1980-09-01 1980-09-01 Multiple stage type water power machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55119769A JPS5744773A (en) 1980-09-01 1980-09-01 Multiple stage type water power machine

Publications (1)

Publication Number Publication Date
JPS5744773A true JPS5744773A (en) 1982-03-13

Family

ID=14769732

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55119769A Pending JPS5744773A (en) 1980-09-01 1980-09-01 Multiple stage type water power machine

Country Status (1)

Country Link
JP (1) JPS5744773A (en)

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