Laboratory for measurement and monitoring of the speed of inspection tools of pipelines (pig)

摘要

Laboratory for measurement and monitoring of the speed of inspection tools of pipelines (pig).The structure is able to test and monitor the movement of pigs and to estimate the speed achieved by the same.It consists of a test line with pipelines of 06 ", a launcher for pigs of 08", a stretch curved 06 "with 18 meters in length, a recipient of the pigs of 08A compressor for fornececimento of compressed air, and a desktop computer connected to a PLC that receives readings from the pressure sensors.The testing line is also equipped with 10 pressure sensors and pressure, to allow the measurement and monitoring of the passage of the pigs.This invention aims to meet a need to develop a by-pass valve for speed control of the pigs at the time of occurrence of the event "shot".And allow a greater reliability in the readings of the sensors located in the body of the pigs, therefore increasing the efficiency and safety of operation of inspection.Figure 1 shows the complete structure of the test line with pipelines of 06 ", with Mu launcher (), a curved section (b), a receiver (c), a compressor (d) and a desktop computer (and) connected to the PLC.The pig is inserted in the test line in the launcher (a), the compressed air supplied by the compressor (d) is injected by (I), making the pig move through the duct, along a straight section of initialPassing through a curved passage and ending the race by another straight stretch, to arrive at the receiver (c)Where the compressed air is removed from the line by the relief valves (k) and drain (L) and to remove the pig line.