Title:
SINGLE-POINT DUAL SENSOR-BASED GAS-LIQUID STRATIFIED FLOW PIPELINE LEAKAGE POSITIONING METHOD AND SYSTEM
Document Type and Number:
WIPO Patent Application WO/2019/090881
Kind Code:
A1
Abstract:
Provided is a single-point dual sensor-based gas-liquid stratified flow pipeline leakage positioning method. The method comprises: establishing a single-point dual sensor-based leakage positioning formula for a pipeline to be detected (S101); installing two sensors at the same point of one end of the pipeline to be detected (S102), a signal collected by the bottom sensor being an acoustic wave propagated by liquid in the pipeline, and a signal collected by the top sensor being an acoustic wave propagated by gas in the pipeline; processing the two acoustic waves to obtain a time difference (S103); substituting the sound velocity in a gas medium, the sound velocity in a liquid medium and the time difference into the single-point dual sensor-based leakage positioning formula (S104); and then positioning leakage (S105). The single-point dual sensor-based leakage positioning method avoids the installation of sensors at both ends of a pipeline, avoids the leakage detection of leaked acoustic wave signals by a single sensor, reduces the number of sensors for installation, and has a low cost, a high safety and strong applicability to a gas-liquid stratified flow pipeline. Further provided is a single-point dual sensor-based gas-liquid stratified flow pipeline leakage positioning system.
Inventors:
LI YUXING (CN)
LIU CUIWEI (CN)
MENG LINGYA (CN)
HU QIHUI (CN)
HAN HUI (CN)
FANG LIPING (CN)
WANG WUCHANG (CN)
JING HUAFEI (CN)
WANG YAZHEN (CN)
LIANG JIE (CN)
LIU CUIWEI (CN)
MENG LINGYA (CN)
HU QIHUI (CN)
HAN HUI (CN)
FANG LIPING (CN)
WANG WUCHANG (CN)
JING HUAFEI (CN)
WANG YAZHEN (CN)
LIANG JIE (CN)
Application Number:
PCT/CN2017/115386
Publication Date:
May 16, 2019
Filing Date:
December 11, 2017
Export Citation:
Assignee:
UNIV CHINA PETROLEUM (CN)
International Classes:
G01M3/24; F17D5/06
Foreign References:
| CN103672415A | 2014-03-26 | |||
| CN101206010A | 2008-06-25 | |||
| US20020149487A1 | 2002-10-17 | |||
| KR101525329B1 | 2015-06-03 | |||
| US5038614A | 1991-08-13 | |||
| JPS61294326A | 1986-12-25 | |||
| CN104132248A | 2014-11-05 |
Attorney, Agent or Firm:
JINAN SHENGDA INTELLECTUAL PROPERTY AGENCY CO., LTD (CN)
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