Title:
LIQUID LEVEL MEASURING APPARATUS
Document Type and Number:
Japanese Patent JP3194075
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To sustain a reference level constantly in a reference container even when a plurality of types of noncondensible gas having different specific gravity are present in an enclosed container.
SOLUTION: Steam in an enclosed container 10 is introduced through steam side detection piping 26 into a reference level container 28. A liquid level gauge 22 measures the liquid level 16 in the enclosed container 10 based on the difference of pressure acting on the reference level in the reference level container 28 and the pressure acting on the liquid level 16 in the enclosed container 10. When a plurality of types of noncondensible gas having different specific gravity are present in the enclosed container 10 and each noncondensible gas is introduced into the reference level container 28, nitrogen gas, carbon dioxide gas and gases having high specific gravity are discharged naturally into the enclosed container 10 through discharge piping 32 while hydrogen gas and oxygen gas are discharged naturally into the enclosed container 10 through piping 36 for discharge low specific gravity gas thus sustaining a prescribed reference level constantly in the reference level container 28.
Inventors:
Setsuo Nonaka
Application Number:
JP29385395A
Publication Date:
July 30, 2001
Filing Date:
November 13, 1995
Export Citation:
Assignee:
株式会社日立製作所
International Classes:
G01F23/14; (IPC1-7): G01F23/14
Domestic Patent References:
| JP6331784A |
Attorney, Agent or Firm:
Tatsuyuki Unuma