公开(公告)号：US12013498B1

公开(公告)日：2024-06-18

申请号：US18402692

申请日：2024-01-02

Applicant: Ningbo Institute of Dalian University of Technology ,  Dalian University of Technology

Inventor： Huiyong Liang ,  Jiafei Zhao ,  Xin Lv ,  Yongchen Song ,  Jiawei Chu ,  Shi Shen ,  Lei Yang ,  Xingyu Lu ,  Linan Zhao ,  Shuangqing Zhang

IPC: G01N29/00 ,  F17D5/00 ,  G01S7/521 ,  G01S15/88

CPC classification number: G01S7/521 ,  F17D5/005 ,  G01S15/88

Abstract: A low-frequency acoustic wave generating device for detecting pipeline blockage related to the technical field of pipeline detection is provided and includes a sealing shell configured to be communicated with a pipeline, a sealed pressure environment is formed inside the sealing shell. A low-frequency electroacoustic transducer is disposed inside the sealing shell, the low-frequency electroacoustic transducer is connected to a signal generator and is configured to transmit an acoustic wave into the pipeline. The device transmits the acoustic wave signals to a high-pressure gas pipeline, combined with a signal generator capable of generating any waveform, thereby emitting any waveform of acoustic wave signal into the pipeline. The use of acoustic waves with special markings and characteristics for pipeline blockage detection can improve the anti-noise interference ability of the acoustic wave detection, and improve the precision of the detection.

公开(公告)号：US11199502B2

公开(公告)日：2021-12-14

申请号：US16195134

申请日：2018-11-19

Applicant: Dalian University of Technology

Inventor： Yongchen Song ,  Jiafei Zhao ,  Zheyuan Liu ,  Weiguo Liu ,  Yu Liu ,  Huiyong Liang ,  Jiawei Chu ,  Mingjun Yang ,  Yanghui Li

IPC: G01N21/85 ,  F04D3/02 ,  F16L9/10 ,  F17D1/02 ,  G01M99/00 ,  G01N21/01 ,  G01N21/75 ,  G01N33/22

Abstract: The present invention discloses a fully visual flow loop system for studying hydrate blockage. The fully visual flow loop system includes a first pipeline, a second pipeline, a third pipeline and a fourth pipeline connected successively in an end-to-end way; a single screw pump is connected between the first pipeline and the fourth pipeline from the four pipelines; the first pipeline, the second pipeline, the third pipeline and the fourth pipeline are all transparent to light; a plurality of CCD cameras are arranged between the first pipeline, the second pipeline, the third pipeline and the fourth pipeline; and, the fully visual flow loop system is arranged in a stepping low-temperature thermostatic chamber; a solution injection system can inject a solution into the fully visual flow loop system; a separation and collection system can separate and recover the solution; and a data acquisition system can integrate sensor information in all the other systems and give real-time feedback to ensure reasonable and coordinated operation of all systems. The fully visual flow loop system for studying hydrate blockage in the present invention can realize full visualization and real-time monitoring of the flow loop system.