Long-distance insulated pipeline, to carry heat or hazardous materials, has a channel through the insulation between the mantle and pipe to take a cable to identify the location of leakages

摘要

The monitor to identify leakages, in insulated long-distance pipelines, has channels (1) through the insulation (2) to take inserted sensor or sensor-hybrid or communication cables for monitoring and data transmission. A perforated channel (1a) is inserted through the insulation channel, to hold the cable. The pipeline has a flexible or rigid plastics mantle (4) shrouding the insulation round the inner steel pipe (3).