Title:
GAS METER AND GAS LEAKAGE INSPECTION METHOD
Document Type and Number:
Japanese Patent JP2022015554
Kind Code:
A
Abstract:
To provide a gas meter and a gas leakage inspection method with which it is possible to save man-hours in inspecting inner pipes for leakage.SOLUTION: Provided is a gas meter 1 comprising a flow rate measurement unit 12 for measuring a gas flow rate and provided downstream of a gas valve 21 normally in an open state which is provided in the middle of an inner pipe P1 constituting a gas passage between an outer pipe P2 and gas appliances 22a-22c, a pressure measurement unit 13 for measuring gas pressure, and a control unit 10. The control unit 10 performs, when an inspection notification signal is inputted, an appliance state assessment process of assessing whether or not the gas appliances 22a-22c are in an unused state on the basis of the gas flow rate measured by the flow rate measurement unit 12, monitors for a given duration the gas pressure measured by the pressure measurement unit 13 and/or the gas flow rate measured by the flow rate measurement unit 12 after the gas valve 21 is closed after it is assessed that the gas appliances 22a-22c are in an unused state, and performs a gas leakage assessment process of assessing the presence of gas leakage on the basis of the gas pressure and/or gas flow rate during said monitoring.SELECTED DRAWING: Figure 1
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Inventors:
NAKATA KEISUKE
YAMASHITA MASUMI
KONISHI RYOHEI
TSUBOI KEN
SUGIMOTO NAOYA
YAMASHITA MASUMI
KONISHI RYOHEI
TSUBOI KEN
SUGIMOTO NAOYA
Application Number:
JP2020118478A
Publication Date:
January 21, 2022
Filing Date:
July 09, 2020
Export Citation:
Assignee:
PANASONIC CORP
OSAKA GAS CO LTD
OSAKA GAS CO LTD
International Classes:
G01F1/00; G01F3/22; G01M3/00
Attorney, Agent or Firm:
Aiko Patent Office, a patent business corporation