Title:
PIPE CAPACITY ESTIMATION DEVICE AND PIPE CAPACITY ESTIMATION METHOD
Document Type and Number:
Japanese Patent JP2019124532
Kind Code:
A
Abstract:
To estimate pipe capacity simply and highly accurately.SOLUTION: A pipe capacity estimation device comprises: a gas meter 120 having a pressure sensor configured to detect pressure of combustible gas, and a shutoff valve configured to shut off supply of combustible gas; a downstream side pipe 130 connected to a downstream side of the gas meter, and having an inspection port 130a; an adsorber 180 connected to the inspection port, and set to a negative pressure state; and a pipe capacity derivation unit configured to derive the pipe capacity of the downstream side pipe based on reduction pressure of combustible gas in the downstream side pipe, in a case where the shutoff valve is closed and the adsorber suctions combustible gas through the inspection port.SELECTED DRAWING: Figure 3
Inventors:
IKEDA YOICHI
OWAKU TAKASHI
TANAKA KYOTARO
MORIYA YU
OWAKU TAKASHI
TANAKA KYOTARO
MORIYA YU
Application Number:
JP2018004399A
Publication Date:
July 25, 2019
Filing Date:
January 15, 2018
Export Citation:
Assignee:
TOKYO GAS CO LTD
International Classes:
G01F3/22; G01F1/00; G01F17/00; G01F22/02; G01L7/00
Domestic Patent References:
| JP2015224978A | 2015-12-14 | |||
| JP2017090175A | 2017-05-25 | |||
| JPS63295885A | 1988-12-02 | |||
| JP2004132662A | 2004-04-30 | |||
| JP2006337346A | 2006-12-14 | |||
| JP2011202926A | 2011-10-13 |
Attorney, Agent or Firm:
Aomi patent office