An innovative method and apparatus for speed control of pipe health monitoring robot during gas pipeline inspection

Kanhaiya Lal Chaurasiya; Varun Pawar; Bishakh Bhattacharya

doi:10.1117/12.2658482

25 April 2023 An innovative method and apparatus for speed control of pipe health monitoring robot during gas pipeline inspection

Kanhaiya Lal Chaurasiya, Varun Pawar, Bishakh Bhattacharya

Author Affiliations +

Proceedings Volume 12488, Health Monitoring of Structural and Biological Systems XVII; 124881R (2023) https://doi.org/10.1117/12.2658482
Event: SPIE Smart Structures + Nondestructive Evaluation, 2023, Long Beach, California, United States

Abstract

Periodic pigging of pipelines is essential for the inspection and maintenance of the gas pipeline network. Undetected cracks can be detrimental to pipelines and can often compromise the integrity of the pipeline. Pigging operation requires the pipeline inspection gauges to move at a moderately low yet uniform speed to inspect the defects, including corrosion, cracks, and deposits, developed in the pipeline after prolonged service. The speed of the pipe health monitoring robot (PHMR) can attain an undesirable high magnitude due to fluctuations in pressurized gas flow conditions prevailing in the pipelines. The high travel speed results in aliasing, leading to a consistent sampling of error-prone inspection data. The present study explores and expands on the previous speed control units by developing an innovative method of a novel speed control system based on the combination of deflector bypass flow and hydraulic brake mechanisms and experimentally validating it for PHMR. The speed control system developed is highly responsive to the changes in the speed of the PHMR since the incompressible nature of the brake fluid makes instantaneous transmission of pressure changes for the braking action possible. The modular nature of the developed speed control system enables it to be attached to any wheel suspension assembly-based PHMR and has been reported to passively regulate any undesirable high-speed spikes maximum by 51% within the acceptable range. The system is operated without a power supply, making it highly safe while operating in inflammable gas pipelines and a cost-effective and reliable solution that can help in accurate, effective, and seamless inspection of the gas pipelines spread over a large area of the pipeline network.

Conference Presentation

Citation Download Citation

Kanhaiya Lal Chaurasiya, Varun Pawar, and Bishakh Bhattacharya "An innovative method and apparatus for speed control of pipe health monitoring robot during gas pipeline inspection", Proc. SPIE 12488, Health Monitoring of Structural and Biological Systems XVII, 124881R (25 April 2023); https://doi.org/10.1117/12.2658482

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