ESTIMATION DEVICE OF INTERNAL STATE OF PIPELINE, AND ESTIMATION METHOD OF INTERNAL STATE OF PIPELINE

Title:

ESTIMATION DEVICE OF INTERNAL STATE OF PIPELINE, AND ESTIMATION METHOD OF INTERNAL STATE OF PIPELINE

Document Type and Number:

Japanese Patent JP2022159920

Kind Code:

A

Abstract:

To estimate a state of the inside of a pipeline by a simple configuration and method under a pulsation environment.SOLUTION: An estimation device 10A of internal state of a pipeline includes: an upstream pressure detection part 20 that is provided in an upstream part of an object tubular body 12 and is connected to the inside of a pipeline; a reference pressure detection part 16; a downstream pressure detection part 30 provided in a downstream part of a downstream side of the upstream pressure detection part 20; an upstream side pressure measurement part 22 that is connected to the upstream pressure detection part 20 and the reference pressure detection part 16, and measures a differential pressure between a wall surface pressure of the upstream pressure detection part 20 and a wall surface pressure of the reference pressure detection part as an upstream side differential pressure ΔPu; a downstream side differential pressure measurement part 32 that is connected to the downstream pressure detection part 30 and the reference pressure detection part 16, and measures a differential pressure between a wall surface pressure of the downstream pressure detection part 30 and a wall surface pressure of the reference pressure detection part 16 as a downstream side differential pressure ΔPd; and a state estimation part 40 for estimating a state of fluid flowing inside the tubular body 12 on the basis of the upstream side differential pressure and the downstream side differential pressure.SELECTED DRAWING: Figure 1

More Like This:

JPS5914623	[Title of the Invention] A device for carrying an air intake negative pressure switching time shortening method and it in flow test equipment of a vaporizer out
WO/2007/057674	APPARATUS AND METHOD FOR FORMING A CONTAINER WITH AN INTERNAL SEPERATING WALL AND CONTAINER PRODUCED

Inventors:

TANAKA KYOTARO
NAKAO MITSUHIRO

Application Number:

JP2021064391A

Publication Date:

October 18, 2022

Filing Date:

April 05, 2021

Export Citation:

Click for automatic bibliography generation Help

Assignee:

TOKYO GAS CO LTD
UNIV KAGOSHIMA

International Classes:

G01F1/34; G01F1/00; G01F1/72

Attorney, Agent or Firm:

Patent Service Corporation Taiyo International Patent Office

Previous Patent: FUEL CELL SYSTEM AND FUEL CELL SYSTEM OPERATING METHOD

Next Patent: Electronics