Rehabilitation of High Pressure Pipelines by an Innovative New Self Monitoring Internal Reinforcement Technology

摘要

This paper describes a new and innovative approach to the internal rehabilitation of aging and degraded, high pressure liquid and gas pipelines by the use of pipe made of layered thermoplastic composite materials. The several significant advantages of the methodology include its ability to: (1) be installed in congested and other locations where the time and cost of uncovering the host pipe is prohibitive, (2) significantly increase the pressure rating of the host pipe, (3) preclude any further strength loss due to corrosion, and (4) continually monitor the pipeline to detect external damage and leaks. Two installation methods are possible. One is best suited to long continuous installations in a tight fit manner, the other to short lengths and large diameters (e.g., as in cased crossings) as a loose fit. Following a brief introduction to the need for this new technology, this paper will describe two manufacturing/installation methods available for this class of pipe, and will address the concern for loss of flow area for internal reinforcement. The unique combination of computer simulation and testing work that along with a self-monitoring system ensures both the safety and the economy of one specific pipe system - the Smart Pipe® ~ that embraces this methodology will also be described.