JPS58184064U

JPS58184064U - Spherical valve seal device

Info

Publication number: JPS58184064U
Application number: JP8060682U
Authority: JP
Inventors: 荒川　紘一; 隆伊藤; 寺本　徹哉; 渡辺　泰佑
Original assignee: 株式会社日立製作所
Priority date: 1982-06-02
Filing date: 1982-06-02
Publication date: 1983-12-07

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は水力発電所球形弁の封水装置断面図、第２図お
よび第３図は従来の封水装置の操作配管系統図、第４図
および第５図は本考案の一実施例の操作配管系統図であ
る。１・・・上流短管、２・・・下流短管、３・・・弁胴、
４・・・弁体、５・・・シールガイド、６・・・ケーシ
ング、７・・・シールリング、８．９・・・操作配管、
１０・・・配圧弁、１１・・・流体源、１２・・・供圧
管、１３・・・排水溝、１４・・・ｍ水’ｔ、１５・・
・シールバッキング、１６・・・手動バルブ、１７・・
・接続管、１８・・・盲フランジ、ａ、　Ｂ・・・加圧
室。Fig. 1 is a sectional view of a water sealing device for a spherical valve in a hydroelectric power plant, Figs. 2 and 3 are operation piping system diagrams of a conventional water sealing device, and Figs. 4 and 5 are an example of an embodiment of the present invention. It is an operation piping system diagram. 1...Upstream short pipe, 2...Downstream short pipe, 3...Valve body,
4... Valve body, 5... Seal guide, 6... Casing, 7... Seal ring, 8.9... Operation piping,
10...Pressure distribution valve, 11...Fluid source, 12...Pressure pipe, 13...Drainage ditch, 14...m water't, 15...
・Seal backing, 16...Manual valve, 17...
・Connecting pipe, 18... Blind flange, a, B... Pressurized chamber.

Claims

[Scope of utility model registration request]

In a fluid supply piping provided in a water sealing mechanism of a spherical valve, in which a seal ring is operated by fluid pressure, the operating fluid is supplied to a part of the opening/closing operation piping where the fluid pressure directly goes to the water sealing mechanism.
A spherical valve seal device characterized in that the piping can be switched to either the open operation side or the close operation side, and the other side is always open to the atmosphere.