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Patent Searching and Data


Title:
DEVICE AND METHOD FOR CONTROLLING PNEUMATIC TYPE MAIN STEAM SEPARATION VALVE
Document Type and Number:
Japanese Patent JP3138936
Kind Code:
B2
Abstract:

PURPOSE: To ensure an operation space for a maintenance operation for pneumatic control equipment even when the pneumatic control equipment is made large in size by integration and combination.
CONSTITUTION: Pneumatic control equipment 5 is separated from a pneumatic type main steam separation valve 1 and installed on an aseismic rack 10 having an aseismic function being equal to the one of the pneumatic type main steam separation valve 1. The pneumatic control equipment 5 and an air cylinder 2 of the pneumatic type main steam separation valve 1 are connected with each other by an air piping 11. A flexible tube 12 is provided in the middle of the air piping 11, and even when the pneumatic type main steam separation valve 1 is displaced due to heat or others, it absorbs the displacement and prevents occurrence of a strain in the air piping 11.


Inventors:
Kiyotoki, Yoshihisa
Sakamoto, Akira
Jitsumatsu, Takayoshi
Application Number:
JP3628792A
Publication Date:
February 26, 2001
Filing Date:
February 24, 1992
Export Citation:
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Assignee:
HITACHI LTD
International Classes:
G21D1/00; G21D3/04; (IPC1-7): G21D1/00; G21D3/04
Attorney, Agent or Firm:
鵜沼 辰之